CN214768329U

CN214768329U - Die for secondary bending of differential pressure sensor support

Info

Publication number: CN214768329U
Application number: CN202120641498.5U
Authority: CN
Inventors: 崔德利
Original assignee: Dandong Ruiying Automobile Stamping Parts Co ltd
Current assignee: Dandong Ruiying Automobile Stamping Parts Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-11-19
Anticipated expiration: 2031-03-30

Abstract

The utility model relates to the technical field of stamping dies for automobile stamping parts, in particular to a die for secondary bending of a differential pressure sensor support, wherein a male die I and a male die II are respectively fixed below an upper die plate, a female die frame is fixed above a lower die plate, a female die hole I and a female die hole II are formed in the female die frame, and a jacking core I and a jacking core II, a female die insert I and a female die insert II are respectively and movably arranged in the female die hole I and the female die hole II; an upper inclined surface is arranged at one end below the male die I, an upper inclined surface matched with the upper inclined surface below the male die I is arranged above the die insert I, and the ejection core I is positioned on one side of the die insert I; the front and rear edges of the lower surface of the male die II are arc edges, 2 female die inserts II are arranged and are respectively arranged on the front and rear sides in the female die hole II, and the ejection core II is positioned between the two female die inserts II. This is novel to carry out the overall arrangement of duplex position, has simplified the operation of process, has improved production efficiency, greatly the cost is reduced.

Description

Die for secondary bending of differential pressure sensor support

Technical Field

The utility model relates to an automobile punching part stamping die technical field provides a mould that is used for differential pressure sensor support secondary to bend very much.

Background

In the stamping process, processes such as drawing and forming are omitted, the problems of springback, warping, wrinkling, thinning, scratches and the like of the material in various deformation processes are inevitable in consideration of the anisotropy of the material, and a reasonable stamping process and a correct die structure are required to be designed to control the phenomena, so that qualified products are produced.

The pressure difference sensor support has more (4) hole sites, and the big hole and the small hole are concentric after being bent and formed according to the requirements of a drawing, and the pressure difference sensor support is mainly used for fixing an automobile assembly, so that the position precision requirement of the hole sites is higher. The position precision of the corresponding mould is ensured by the design and the processing of the corresponding mould. The automobile differential pressure sensor bracket has the characteristic of a space free-form surface, the shape of the curved surface is complex, and the main difficulties are determining a blanking expansion diagram and a stamping center and a stamping direction of the curved surface; secondly, the processing procedure is two-stage, namely, the processing and the forming can be realized only by secondary processing, so that the cost is increased, and therefore, a set of pressure difference sensor support double-station forming die is urgently needed to be researched and developed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a mould for differential pressure sensor support secondary is bent realizes both sides and buckles on same set of mould, improves work efficiency.

The utility model discloses a realize like this, provide a mould for differential pressure sensor support secondary is bent, including cope match-plate pattern, terrace die I, terrace die II, lower bolster, die frame, liftout core I, liftout core II, die insert I and die insert II, terrace die I and terrace die II are fixed respectively in the cope match-plate pattern below, the die frame is fixed above the lower bolster, set up die hole I and die hole II that are used for cooperating with terrace die I and terrace die II respectively on the die frame, liftout core I and liftout core II can set up and down movably respectively in die hole I and die hole II, die insert I and die insert II are fixed respectively in die hole I and die hole II;

an upper inclined surface is arranged at one end below the male die I, an upper inclined surface matched with the upper inclined surface below the male die I is arranged above the die insert I, the ejection core I is positioned on one side of the die insert I, and the thickness of the ejection core I is the same as the minimum thickness of the die insert I; the front and rear edges of the lower surface of the male die II are arc edges, 2 female die inserts II are arranged and are respectively arranged on the front and rear sides in the female die hole II, and the ejection core II is positioned between the two female die inserts II.

Preferably, the punch further comprises an upper padding plate and a fixing plate, wherein the upper padding plate is fixed on the lower surface of the upper die plate, the fixing plate is fixed on the lower surface of the upper padding plate, the fixing plate is provided with openings matched with the upper ends of the male die I and the male die II, and the male die I and the male die II penetrate through the openings in the fixing plate and are fixed on the upper padding plate.

Further preferably, at least one discharging cavity is formed in the male die II, a discharging nail and a discharging spring are arranged in the discharging cavity, the upper end of the discharging spring is fixed, the lower end of the discharging spring is connected with the discharging nail, and the lower end of the discharging nail extends out of the male die II.

Further preferably, a positioning nail is fixedly arranged above the material ejection core I; and a positioning plate is fixedly arranged above the female die frame on one side of the edge of the female die hole II, a groove is formed in one edge of the positioning plate, the groove faces the female die hole II, and the width of the groove in the positioning plate is consistent with that of the differential pressure sensor support to be processed. The depth of the groove is the closest distance from one end of the differential pressure sensor bracket to be processed to the secondary bending position.

Further preferably, the lower end of the ejection core I is connected with an ejection nail I, the ejection nail I penetrates through the lower template and is connected with an ejection device I, the lower end of the ejection core II is connected with an ejection nail II, and the ejection nail II penetrates through the lower template and is connected with an ejection device II.

Further preferably, the ejection device further comprises at least 2 supporting plates, the upper ends of the supporting plates are fixedly connected below the lower template, and the ejection device I and the ejection device II are arranged between the supporting plates.

Further preferably, the die further comprises a lower backing plate, the lower backing plate is fixed on the lower template, and the die frame is fixed above the lower backing plate.

Preferably, the upper die plate is provided with a die handle, at least 2 guide sleeves are fixedly connected below the upper die plate, at least 2 guide pillars are fixedly connected above the lower die plate, and the guide pillars are matched with the guide sleeves.

Compared with the prior art, the utility model has the advantages of:

the double-station layout is carried out, namely, the workpiece can be bent for the first time and then bent for the second time on the die, so that the operation of the working procedure is simplified, the production efficiency is improved, and the cost is greatly reduced.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and embodiments:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the lower part of the female mold frame according to the present invention;

FIG. 3 is a structural view of a male die I;

FIG. 4 is a structural view of a male die II;

FIG. 5 is a view showing the structure of a female mold frame;

FIG. 6 is a structural view of a die insert I;

FIG. 7 is a drawing of a die insert II;

FIG. 8 is a view showing the structure of the positioning plate;

FIG. 9 is a structural change diagram of a differential pressure sensor bracket before stamping, after primary bending, and after secondary bending.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2, 3, 4, 5, 6 and 7, the utility model provides a mould for differential pressure sensor support secondary bending, including cope match-plate pattern 17, terrace die I21, terrace die II 12, lower bolster 5, die frame 9, liftout core I22, liftout core II 7, die insert I29 and die insert II 30, terrace die I21 and terrace die II 12 are fixed respectively in cope match-plate pattern 17 below, die frame 9 is fixed above lower bolster 5, set up die hole I and die hole II that are used for respectively cooperating with terrace die I21 and terrace die II 12 on the die frame 9, liftout core I22 and liftout core II 7 can set up in die hole I and die hole II movably from top to bottom respectively, die insert I29 and die insert II 30 are fixed respectively and are set up in die hole I and die hole II;

an upper inclined surface is arranged at one end below the male die I21, an upper inclined surface matched with the upper inclined surface below the male die I21 is arranged above the die insert I29, the ejection core I22 is positioned on one side of the die insert I29, and the thickness of the ejection core I22 is the same as the minimum thickness of the die insert I29; the front edge and the rear edge of the lower surface of the male die II 12 are arc-shaped edges, 2 female die inserts II 30 are arranged and are respectively arranged on the front side and the rear side in the female die hole II, and the ejection core II 7 is positioned between the two female die inserts II 30.

Referring to fig. 1 and 9, when the die for secondary bending of a differential pressure sensor bracket provided by the utility model is used for secondary bending of the differential pressure sensor bracket, an upper die plate 17 and a lower die plate 5 of the die are installed on a punching machine, firstly, the differential pressure sensor bracket is placed above a material ejecting core I22 of a die frame 9, the position needing primary bending corresponds to the positions of a male die I21 and a die insert I29, the punching machine is started, the upper die plate 17 drives the male die I21 to move downwards, the male die I21, the die insert I29 and the material ejecting core I22 are matched with each other for punching, the differential pressure sensor bracket completes primary punching to form a primary punching middle semi-finished product, then, the punching machine drives the upper die plate 17 to move upwards, a workpiece is taken down, the workpiece is placed between the male die II 12 and the material ejecting core II 7 and the die insert II 30, the position needing secondary bending corresponds to the punching machine, and the punching machine is continuously started, and driving the upper template 17 to descend, and performing matched extrusion on the male die II 12, the ejection core II 7 and the female die insert II 30 to finish secondary bending of the workpiece to form a finished product.

In order to protect the upper die plate 17, increase the thickness of the die and facilitate fixing the male die I21 and the male die II 12, the improved structure of the technical scheme further comprises an upper backing plate 19 and a fixing plate 13, wherein the upper backing plate 19 is fixed on the lower surface of the upper die plate 17, the fixing plate 13 is fixed on the lower surface of the upper backing plate 19, the fixing plate 13 is provided with holes matched with the upper ends of the male die I21 and the male die II 12, and the male die I21 and the male die II 12 penetrate through the holes in the fixing plate 13 and are fixed on the upper backing plate 19.

The first cylindrical pin 15, the first screw 20 connects the upper template 17, the upper backing plate 19 and the fixing plate 13, and the second screw 18 connects the upper backing plate 19 and the fixing plate 13.

In order to prevent the workpiece from being attached to the male die II 12 after being extruded in the ascending process of the upper die plate 17, as an improvement of the technical scheme, at least one discharging cavity is formed in the male die II 12, a discharging nail 8 and a discharging spring 14 are arranged in the discharging cavity, the upper end of the discharging spring 14 is fixed, the lower end of the discharging spring is connected with the discharging nail 8, and the lower end of the discharging nail 8 extends out of the male die II 12.

In the ascending process of the upper die plate 17, the discharging spring 14 ejects the discharging nail 8 under the action of elastic force, the discharging nail 8 extends out of a hole below the male die II 12, and the discharging is completed after the discharging nail is pushed downwards.

Referring to fig. 2 and 8, in order to position the punching process for 2 times accurately, as a technical improvement, a positioning nail 28 is fixedly arranged above the ejection core i 22; and a positioning plate 10 is fixedly arranged above the female die frame 9 on one side of the edge of the female die hole II, a groove is formed in one side of the positioning plate 10, the groove faces the female die hole II, and the width of the groove in the positioning plate 10 is consistent with that of the differential pressure sensor support to be processed. The depth of the groove is the closest distance from one end of the differential pressure sensor bracket to be processed to the secondary bending position.

When the primary bending punching is carried out, the hole on the workpiece is matched with the positioning nail 28 to complete the primary positioning, and when the secondary bending punching is carried out, one end of the workpiece is extended into the groove of the positioning plate 10 to be propped against the groove to complete the positioning.

In order to assist in discharging after stamping, as an improvement of the technical scheme, the lower end of the ejection core I22 is connected with an ejection nail I4, the ejection nail I4 penetrates through the lower template 5 and is connected with an ejection device I27, the lower end of the ejection core II 7 is connected with an ejection nail II 3, and the ejection nail II 3 penetrates through the lower template 5 and is connected with an ejection device II 26. Two bullet lifters constitute by bullet ejector hypoplastron 1, bullet ejector upper plate and elastic component, and the elastic component is connected between bullet ejector hypoplastron 1 and bullet ejector upper plate, and liftout nail I4, liftout nail II 3 are connected with the bullet ejector upper plate of two bullet ejectors respectively.

In order to form an installation space for the ejection device I27 and the ejection device II 26, the ejection device further comprises at least 2 supporting plates 2, the upper ends of the supporting plates 2 are fixedly connected below the lower template 5, and the ejection device I27 and the ejection device II 26 are arranged between the supporting plates 2.

In order to protect the lower template 5, the lower template also comprises a lower backing plate 6, the lower backing plate 6 is fixed on the lower template 5, and the female die frame 9 is fixed above the lower backing plate 6. The second cylindrical pin 23 connects the die frame 9, the lower bolster 6 and the lower template 5.

In order to guide the movement of each component connected with the upper template 17 and each component connected with the lower template 5, as an improvement of the technical scheme, a die handle 16 is arranged on the upper template 17, at least 2 guide sleeves 11 are fixedly connected below the upper template 17, at least 2 guide posts 24 are fixedly connected above the lower template 5, and the guide posts 24 are matched with the guide sleeves 11.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A die for secondary bending of a differential pressure sensor support is characterized by comprising an upper die plate (17), a male die I (21), a male die II (12), a lower die plate (5), a female die frame (9), a material ejecting core I (22), a material ejecting core II (7), a female die insert I (29) and a female die insert II (30), wherein the male die I (21) and the male die II (12) are respectively fixed below the upper die plate (17), the female die frame (9) is fixed above the lower die plate (5), a female die hole I and a female die hole II which are respectively matched with the male die I (21) and the male die II (12) are arranged on the female die frame (9), the material ejecting core I (22) and the material ejecting core II (7) can be respectively and vertically movably arranged in the female die hole I and the female die hole II, the die insert I (29) and the die insert II (30) are fixedly arranged in the die hole I and the die hole II respectively;

an upper inclined surface is arranged at one end below the male die I (21), an upper inclined surface matched with the upper inclined surface below the male die I (21) is arranged above the die insert I (29), the ejection core I (22) is positioned at one side of the die insert I (29), and the thickness of the ejection core I (22) is the same as the minimum thickness of the die insert I (29); the front edge and the rear edge of the lower surface of the male die II (12) are arc edges, 2 female die inserts II (30) are arranged and are respectively arranged on the front side and the rear side in the female die hole II, and the ejection core II (7) is positioned between the two female die inserts II (30).

2. The die for twice bending the differential pressure sensor support according to claim 1, further comprising an upper backing plate (19) and a fixing plate (13), wherein the upper backing plate (19) is fixed on the lower surface of the upper die plate (17), the fixing plate (13) is fixed on the lower surface of the upper backing plate (19), the fixing plate (13) is provided with openings matched with the upper ends of the male dies I (21) and II (12), and the male dies I (21) and II (12) penetrate through the openings in the fixing plate (13) and are fixed on the upper backing plate (19).

3. The die for twice bending the differential pressure sensor support according to claim 1, wherein at least one discharging cavity is formed in the male die II (12), a discharging nail (8) and a discharging spring (14) are arranged in the discharging cavity, the upper end of the discharging spring (14) is fixed, the lower end of the discharging spring is connected with the discharging nail (8), and the lower end of the discharging nail (8) extends out of the male die II (12).

4. The die for twice bending the differential pressure sensor bracket according to claim 1, wherein a positioning nail (28) is fixedly arranged above the material ejection core I (22); and a positioning plate (10) is fixedly arranged above the female die frame (9) on one side of the edge of the female die hole II, a groove is formed in one side of the positioning plate (10), the groove faces to the female die hole II, the width of the groove in the positioning plate (10) is consistent with the width of the differential pressure sensor support to be processed, and the depth of the groove is the closest distance from one end of the differential pressure sensor support to be processed to a secondary bending position.

5. The die for twice bending of the differential pressure sensor support according to claim 1, wherein the lower end of the ejection core I (22) is connected with an ejection nail I (4), the ejection nail I (4) penetrates through the lower die plate (5) and is connected with an ejection device I (27), the lower end of the ejection core II (7) is connected with an ejection nail II (3), and the ejection nail II (3) penetrates through the lower die plate (5) and is connected with an ejection device II (26).

6. The die for twice bending the differential pressure sensor support according to claim 5, further comprising at least 2 supporting plates (2), wherein the upper ends of the supporting plates (2) are fixedly connected below the lower template (5), and the ejection device I (27) and the ejection device II (26) are arranged between the supporting plates (2).

7. The die for twice bending the bracket of the differential pressure sensor according to claim 1, further comprising a lower backing plate (6), wherein the lower backing plate (6) is fixed on the lower die plate (5), and the die frame (9) is fixed above the lower backing plate (6).

8. The die for twice bending the differential pressure sensor bracket according to claim 1, wherein a die handle (16) is arranged on the upper die plate (17), at least 2 guide sleeves (11) are fixedly connected below the upper die plate (17), at least 2 guide pillars (24) are fixedly connected above the lower die plate (5), and the guide pillars (24) are matched with the guide sleeves (11).