CN212822202U

CN212822202U - Cylindrical workpiece buckling position forming die

Info

Publication number: CN212822202U
Application number: CN202021672710.6U
Authority: CN
Inventors: 熊伟
Original assignee: Guangdong Lidemeng Technology Co ltd
Current assignee: Guangdong Lidemeng Technology Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-03-30
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a cylindrical workpiece buckling position forming die, which comprises an upper die base plate, an upper padding plate, a male splint, a back removing plate, a material removing plate, a lower die plate, a lower padding plate and a lower die base plate which are arranged from top to bottom in sequence; the lower template is provided with a guide-in block for fixing the cylindrical workpiece, and the guide-in block is provided with a butting block; two side punches are also arranged on the lower template in a sliding manner along the horizontal direction; the two side punches are respectively positioned at two sides of the guide block, and the lower template is provided with two first elastic reset elements for respectively driving one side punch to move towards the direction far away from the guide block; the stripper plate is also provided with two side sliding blocks in a sliding manner along the horizontal direction; the two side sliding blocks correspond to the two side punches one by one; and the lower part of each side sliding block is provided with a positioning part which is used for extending into the cylindrical workpiece from top to bottom to fix when the die is closed. The utility model has the advantages of the position shaping of detaining of tube-shape work piece lateral wall is high in quality.

Description

Cylindrical workpiece buckling position forming die

Technical Field

The utility model belongs to the technical field of stamping die technique and specifically relates to a position forming die is detained to tube-shape work piece.

Background

In modern manufacturing industry, dies such as stamping dies, forging dies, injection molding dies, etc. are one of the important tools for industrial production of various parts. For cylindrical parts needing to be formed into buckling positions, an injection molding process is generally adopted; the part of the cylindrical part needs to be formed by adopting a punch forming mode due to the material of the part; the existing stamping die is used in the process of forming the buckle position: in order to facilitate demoulding, only a profiling hole with the outline similar to that of the cylindrical workpiece is formed in the guide block to support and fix the outer wall of the cylindrical workpiece, and when the side punch punches from outside to inside, due to the fact that the inner wall of the cylindrical workpiece is not supported and fixed, fine deformation is easy to generate near the buckling position forming part of the cylindrical workpiece, and therefore the buckling position forming quality is not high.

Thus, the prior art is subject to improvement and advancement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provides a position forming die is detained to tube-shape work piece to the problem among the above-mentioned prior art, the purpose improves stamping die to the shaping quality of tube-shape work piece lateral wall.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

a cylindrical workpiece buckling position forming die comprises an upper die base plate, an upper padding plate, a male clamping plate, a stripping plate, a lower die plate, a lower padding plate and a lower die base plate which are sequentially arranged from top to bottom; the lower template is provided with a guide-in block for fixing the cylindrical workpiece, and the guide-in block is provided with a butting block; two side punches are also arranged on the lower template in a sliding manner along the horizontal direction; the two side punches are respectively positioned at two sides of the guide block, and the lower template is provided with two first elastic reset elements for respectively driving one side punch to move towards the direction far away from the guide block; the stripper plate is also provided with two side sliding blocks in a sliding manner along the horizontal direction; the two side sliding blocks correspond to the two side punches one by one; the lower part of each side slide block is provided with a positioning part which is used for extending into the cylindrical workpiece from top to bottom to be fixed during die assembly; a stamping hole matched with the corresponding side stamping head is formed in the side wall of each positioning part; a second elastic reset element is abutted between the side wall of each side sliding block which is far away from the side sliding block and the stripper plate; the stripper plate is also provided with a transmission block which is used for being matched with the opposite ejection block to drive the two side sliding blocks to slide towards the corresponding side punch heads in a sliding manner along the vertical direction; a third elastic reset element is abutted between the transmission block and the upper die base plate; two knock-off rods are arranged on the male splint; the two striking rods correspond to the two side punches one by one and are used for driving the corresponding side punches to slide towards the direction of the guide-in block.

As a further elaboration of the above technical solution:

in the above technical solution, the side punch includes a punch mounting block and a punch; the punch mounting block is slidably mounted on the lower template; the punch is arranged on the upper part of the side wall of the punch mounting block close to the guide block; and the lower template is also provided with a wear-resisting plate matched with the punch mounting block.

In the above technical solution, the first elastic reset element is a tension spring; one end of the tension spring is fixed on the side wall, far away from the guide block, of the punch mounting block, and the other end of the tension spring is fixed on the lower template.

In the technical scheme, the middle part of the guide block is provided with a profiling hole which is similar to the outer contour of the cylindrical workpiece; the ejection block is arranged in the profiling hole and is matched with the lower opening of the cylindrical workpiece.

In the technical scheme, a first wedge surface is formed on the upper part of the side wall of each punch mounting block, which is far away from the guide block; the lower part of each knock-off rod sequentially penetrates through the stripper plate and the stripper plate from top to bottom; and a second wedge surface matched with the first wedge surface on the corresponding punch mounting block is formed at the bottom of each striking rod.

In the above technical solution, the third elastic return element includes a force transmission pin and a spring; the force transmission pin sequentially penetrates through the upper base plate, the male clamping plate, the stripper plate and the stripper plate from top to bottom; the spring is abutted between the top end of the force transmission pin and the upper die seat plate; the bottom of the force transmission pin is abutted against the top of the transmission block.

In the above technical solution, the second elastic reset element is a pressure spring; and the side walls of the two side sliding blocks, which are far away from each other, are provided with blind holes for accommodating one end part of the corresponding pressure spring.

In the technical scheme, third oblique wedge surfaces are formed on two side walls of the transmission block, which face the two side sliding blocks; and each side sliding block is provided with a fourth wedge surface matched with the corresponding third wedge surface.

The utility model has the advantages that when the die is closed, the transmission block is pushed by the opposite ejector block, so that the transmission block moves upwards relative to the side sliding block, the side sliding block is driven to horizontally slide until the transmission block is tightly propped against the inner wall of the cylindrical workpiece, finally, the inner wall of the cylindrical workpiece can be supported and fixed when the side punching head carries out lateral punching operation on the cylindrical workpiece, and the quality of buckling position forming of the side wall of the cylindrical workpiece is improved; when the die is opened, the two second elastic reset elements drive the two side sliding blocks to retract inwards, so that the side sliding blocks are separated from buckling positions of the cylindrical workpiece, and the die is opened conveniently; on the other hand, the utility model discloses still once detain position stamping forming to the both sides wall of tube-shape work piece, have the advantage that the integrated level is high, production efficiency is high.

Drawings

FIG. 1 is a schematic structural view of the mold opening state of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 2 at A;

FIG. 3 is a schematic structural view of the mold clamping state of the present invention;

fig. 4 is a partially enlarged view of fig. 3 at B.

The reference numbers in the figures are respectively: 1. an upper die base plate; 2. an upper base plate; 3. a male splint; 4. removing the back plate; 5. a material removing plate; 6. a lower template; 7. a lower base plate; 8. a lower die base plate; 9. a lead-in block; 10. aligning the top blocks; 11. a side punch; 12. a first elastic reset element; 13. a side slider; 14. a positioning part; 15. punching a hole; 16. a second elastic reset element; 17. a transmission block; 18. a third elastic reset element; 19. beating a rod; 20. a punch mounting block; 21. a punch; 22. a wear plate; 23. profiling a hole; 24. a first cammed surface; 25. a second cammed surface; 26. a force transfer pin; 27. a spring; 28. blind holes; 29. a third wedge surface; 30. and a fourth wedge surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Fig. 1-4 illustrate a specific embodiment of a forming die for buckling a position on a drum-shaped workpiece, referring to fig. 1-4, a forming die for buckling a position on a drum-shaped workpiece comprises an upper die base plate 1, an upper padding plate 2, a male splint 3, a stripper plate 4, a stripper plate 5, a lower die plate 6, a lower padding plate 7 and a lower die base plate 8 which are arranged from top to bottom in sequence. The same as the prior art is that: the upper die base plate 1, the upper padding plate 2 and the male clamp plate 3 are fixedly connected through bolts, the stripper plate 4 is movably mounted at the lower side of the male clamp plate 3 in a vertically sliding manner through a contour sleeve (not shown in the figure), a nitrogen spring (not shown in the figure) is abutted between the stripper plate 4 and the male clamp plate 3, and the stripper plate 4 is fixed with the stripper plate 5 in a threaded manner. The lower template 6, the lower backing plate 7 and the lower die base 8 are fixed in a threaded manner.

The lower template 6 is provided with a guide-in block 9 for fixing a cylindrical workpiece, and the guide-in block 9 is provided with a butting block 10; two side punches 11 are also arranged on the lower template 6 in a sliding manner along the horizontal direction; the two side punches 11 are respectively located at two sides of the guide block 9, and the lower template 6 is provided with two first elastic reset elements 12 for respectively driving one side punch 11 to move towards a direction away from the guide block 9.

The stripper plate 5 is also provided with two side sliding blocks 13 in a sliding manner along the horizontal direction; the two side sliders 13 correspond to the two side punches 11 one by one. The lower part of each side slide block 13 is provided with a positioning part 14 which is used for extending into the cylindrical workpiece from top to bottom to fix when the die is closed; each positioning portion 14 has a side wall formed with a punched hole 15 for engaging with the corresponding side punch 11. A second elastic reset element 16 is abutted between the side wall of each side sliding block 13 far away from the stripper plate 5; the stripper plate 5 is also provided with a transmission block 17 which is used for butting against the butting block 10 along the vertical direction so as to drive the two side sliding blocks 13 to slide towards the corresponding side punches 11; a third elastic reset element 18 is abutted between the transmission block 17 and the upper die base plate 1; two beating rods 19 are arranged on the male splint 3; the two striking rods 19 correspond to the two side punches 11 one by one and are used for driving the corresponding side punches 11 to slide towards the direction of the guide block 9.

Further, the side punch 11 includes a punch mounting block 20 and a punch 21; the punch mounting block 20 is slidably mounted on the lower template 6; the punch 21 is arranged on the upper part of the side wall of the punch mounting block 20 close to the guide block 9; the lower template 6 is also provided with a wear-resisting plate 22 matched with the punch mounting block 20. When the required fashioned knot position shape of tube-shape work piece changes, the utility model discloses only need change drift 21 can, need not to change drift installation piece 20 has greatly reduced the cost of changing, simultaneously through addding antifriction plate 22 reduces the wearing and tearing speed of drift installation piece 20 improves greatly the utility model discloses a life.

Further, the first elastic reset element 12 is a tension spring; one end of the tension spring is fixed on the side wall of the punch mounting block 20 far away from the guide block 9, and the other end of the tension spring is fixed on the lower template 6.

Furthermore, a profiling hole 23 similar to the outer contour of the cylindrical workpiece is arranged in the middle of the guide block 9; the ejector block 10 is installed in the profiling hole 23 and matched with the lower opening of the cylindrical workpiece, when the die is closed, the cylindrical workpiece is pressed into the profiling hole 23 from top to bottom to achieve positioning, and meanwhile, the ejector block 10 extends into the cylindrical workpiece from the opening of the lower portion of the cylindrical workpiece.

Further, a first wedge surface 24 is formed on the upper portion of the side wall of each punch mounting block 20 away from the guide block 9; the lower part of each knock-off rod 19 sequentially penetrates through the stripper plate 4 and the stripper plate 5 from top to bottom; the bottom of each striking rod 19 is formed with a second wedge surface 25 which is matched with the first wedge surface 24 on the corresponding punch mounting block 20. The striking rod 19 and the punch mounting block 20 form a wedge transmission mechanism through the cooperation of the first wedge surface 24 and the second inclined surface 25, and the punch mounting block 20 is driven by the downward movement of the striking rod 19 to move towards the direction close to the guide block 9.

Further, said third elastic return element 18 comprises a force transmission pin 26 and a spring 27; the force transmission pin 26 sequentially penetrates through the upper backing plate 2, the male clamping plate 3, the stripper plate 4 and the stripper plate 5 in a vertically movable manner from top to bottom; the spring 27 is abutted between the top end of the force transmission pin 26 and the upper die plate 1; the bottom of the force transfer pin 26 abuts against the top of the transmission block 17.

Further, the second elastic resetting element 16 is a pressure spring; the two side sliding blocks 13 are provided with blind holes 28 on the side walls away from each other for accommodating one end of the corresponding compression spring, so that the second elastic reset element 16 is well fixed and prevented from falling off.

Further, third wedge surfaces 29 are formed on two side walls of the transmission block 17 facing the two side sliding blocks 13; each side sliding block 13 is provided with a fourth wedge surface 30 which is matched with the corresponding third wedge surface 29. The transmission block 17 and the side sliding blocks 13 form a wedge transmission mechanism through the cooperation of the third wedge surface 29 and the fourth wedge surface 30, and then the transmission block 17 drives the two side sliding blocks 13 to expand outwards when moving upwards relative to the side sliding blocks 13. Furthermore, the total number of the third wedge surfaces 29 is six, the third wedge surfaces are symmetrically arranged on two sides of the transmission block 17, and correspondingly, three fourth wedge surfaces 30 are formed on each side sliding block 13, so that the stability of the group of wedge transmission mechanisms is improved.

The utility model discloses the compound die action is as follows:

firstly, the upper die base plate 1, the upper backing plate 2, the male splint 3, the stripper plate 4 and the stripper plate 5 synchronously descend to press the cylindrical workpiece into the guide block 9, in the process, the transmission block 17 cannot descend due to the blocking of the ejector block 10 and drives the two side sliders 13 to expand outwards to support and fix the inner wall of the cylindrical workpiece, and the third elastic reset element 18 is compressed; then, the upper die plate 1, the upper backing plate 2 and the male splint 3 continue to descend, the stripper plate 4 and the stripper plate 5 abut against the lower die plate 6 and stop descending, at this time, the striking rod 19 drives the side punch 11 to punch into the punching hole 15 to complete buckling and forming of the cylindrical workpiece, in the process, the nitrogen spring is compressed, and the first elastic reset element 12 is stretched.

The utility model discloses the die sinking action is as follows:

firstly, the upper die plate 1, the upper shim plate 2 and the male clamping plate 3 move upwards, the nitrogen spring is restored to press the stripper plate 4 and the stripper plate 5 against the lower die plate 6, in the process, the striking rod 19 is separated from the side punch 11, the side punch 11 is reset under the action of the first elastic resetting element 12, and meanwhile, the third elastic resetting element 18 is restored to enable the transmission block 17 and the side slide block 13 to be relatively static; then, when the nitrogen spring is restored, the upper die plate 1, the upper padding plate 2, the male splint 3, the stripper plate 4 and the stripper plate 5 synchronously move upwards, the third elastic restoring element 18 is continuously restored to tightly push the transmission block 17 against the ejector block 10, so that the transmission block 17 moves downwards relative to the side sliding blocks 13, and the second elastic restoring element 16 drives the two side sliding blocks 13 to retract inwards to complete the separation action of buckling with the cylindrical workpiece.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A cylindrical workpiece buckling position forming die comprises an upper die base plate, an upper padding plate, a male clamping plate, a stripping plate, a lower die plate, a lower padding plate and a lower die base plate which are sequentially arranged from top to bottom; it is characterized in that the preparation method is characterized in that,

the lower template is provided with a guide-in block for fixing the cylindrical workpiece, and the guide-in block is provided with a butting block; two side punches are also arranged on the lower template in a sliding manner along the horizontal direction; the two side punches are respectively positioned at two sides of the guide block, and the lower template is provided with two first elastic reset elements for respectively driving one side punch to move towards the direction far away from the guide block;

the stripper plate is also provided with two side sliding blocks in a sliding manner along the horizontal direction; the two side sliding blocks correspond to the two side punches one by one; the lower part of each side slide block is provided with a positioning part which is used for extending into the cylindrical workpiece from top to bottom to be fixed during die assembly; a stamping hole matched with the corresponding side stamping head is formed in the side wall of each positioning part; a second elastic reset element is abutted between the side wall of each side sliding block which is far away from the side sliding block and the stripper plate; the stripper plate is also provided with a transmission block which is used for being matched with the opposite ejection block to drive the two side sliding blocks to slide towards the corresponding side punch heads in a sliding manner along the vertical direction; a third elastic reset element is abutted between the transmission block and the upper die base plate; two knock-off rods are arranged on the male splint; the two striking rods correspond to the two side punches one by one and are used for driving the corresponding side punches to slide towards the direction close to the guide-in block.

2. The cylindrical workpiece buttoning forming die of claim 1, wherein the side punch comprises a punch mounting block and a punch; the punch mounting block is slidably mounted on the lower template; the punch is arranged on the upper part of the side wall of the punch mounting block close to the guide block; and the lower template is also provided with a wear-resisting plate matched with the punch mounting block.

3. The cylindrical workpiece buckling position forming die as claimed in claim 2, wherein the first elastic reset element is a tension spring; one end of the tension spring is fixed on the side wall, far away from the guide block, of the punch mounting block, and the other end of the tension spring is fixed on the lower template.

4. The cylindrical workpiece buckling position forming die as claimed in claim 2, wherein a profiling hole with an outline similar to that of the cylindrical workpiece is arranged in the middle of the guide block; the ejection block is arranged in the profiling hole and is matched with the lower opening of the cylindrical workpiece.

5. The cylindrical workpiece buckling position forming die as claimed in claim 2, wherein a first wedge surface is formed on the upper portion of the side wall of each punch mounting block, which is far away from the guide block; the lower part of each knock-off rod sequentially penetrates through the stripper plate and the stripper plate from top to bottom; and a second wedge surface matched with the first wedge surface on the corresponding punch mounting block is formed at the bottom of each striking rod.

6. The cylindrical workpiece button position forming die as claimed in claim 1, wherein the third elastic reset element comprises a force transmission pin and a spring; the force transmission pin sequentially penetrates through the upper base plate, the male clamping plate, the stripper plate and the stripper plate from top to bottom; the spring is abutted between the top end of the force transmission pin and the upper die seat plate; the bottom of the force transmission pin is abutted against the top of the transmission block.

7. The cylindrical workpiece buckling position forming die as claimed in claim 6, wherein the second elastic reset element is a compression spring; and the side walls of the two side sliding blocks, which are far away from each other, are provided with blind holes for accommodating one end part of the corresponding pressure spring.

8. The cylindrical workpiece buckling and forming die as claimed in any one of claims 1 to 7, wherein third tapered surfaces are formed on two side walls of the transmission block facing the two side sliding blocks; and each side sliding block is provided with a fourth wedge surface matched with the corresponding third wedge surface.