CN214814008U

CN214814008U - Stamping die for deburring end face of annular workpiece

Info

Publication number: CN214814008U
Application number: CN202023252756.5U
Authority: CN
Inventors: 刘建科
Original assignee: Wujiang Suonan Precision Machinery Co ltd
Current assignee: Wujiang Suonan Precision Machinery Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-23
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a stamping die for deburring of the end face of an annular workpiece, wherein an upper die component comprises an upper die base, an upper clamping plate, a stripping plate movably arranged below the upper clamping plate, a stripping plate fixed at the bottom of the stripping plate and a first reset spring connected between the upper clamping plate and the stripping plate; the lower die assembly comprises a lower die base, a lower backing plate and a lower clamping plate; the upper clamping plate is provided with a stamping head; the stamping head is movably arranged on the stripper plate and the stripper plate in a penetrating way; the stamping head comprises a bottom end face, an annular side face connected with the bottom end face and an annular inclined face connected to the upper end of the annular side face; the upper end of the annular inclined plane extends towards the direction far away from the central position of the stamping head; a concave cavity is arranged on the lower clamping plate corresponding to the stamping head; a top plate is movably arranged in the cavity up and down; and a second return spring is arranged between the top plate and the lower die holder. The utility model discloses a mode of chamfer is repaired the deckle edge of cyclic annular work piece, and deckle edge processing speed is fast, and is efficient, effectively adapts to the production and processing of modulus of continuity.

Description

Stamping die for deburring end face of annular workpiece

Technical Field

The utility model relates to a stamping die technical field especially relates to a stamping die that is used for unedged is repaiied to cyclic annular work piece terminal surface.

Background

As shown in fig. 1, the ring-shaped workpiece is formed by bending, punching, or the like of a progressive die. The annular workpiece has an annular side wall 7 and an annular projection 72 formed on the inside of the annular side wall 7. The intersection of the inner side wall and the top surface of the annular side wall 7 forms a burr 71. The burrs 71 are sharp and sharp, and the burrs 71 need to be repaired to meet the process requirements.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists above-mentioned, the utility model aims at: the utility model provides a stamping die that is used for cyclic annular work piece terminal surface to repair deckle edge, through the mode of chamfer, repairs the deckle edge of cyclic annular work piece, and deckle edge processing is fast, and is efficient, effectively adapts to the production and processing of modulus of continuity.

The technical solution of the utility model is realized like this: a stamping die for deburring the end face of an annular workpiece comprises an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die base, an upper clamping plate fixed at the bottom of the upper die base, a stripping plate movably arranged below the upper clamping plate, a stripping plate fixed at the bottom of the stripping plate and a first return spring connected between the upper clamping plate and the stripping plate; the lower die assembly comprises a lower die base, a lower backing plate fixed on the lower die base and a lower clamping plate fixed on the lower backing plate;

a stamping head is arranged on the upper clamping plate; the stamping head movably penetrates through the stripper plate and the stripper plate; the stamping head comprises a bottom end face, an annular side face connected with the bottom end face and an annular inclined face connected to the upper end of the annular side face; the upper end of the annular inclined plane extends towards the direction far away from the central position of the stamping head;

a concave cavity is arranged on the lower clamping plate corresponding to the stamping head; a top plate is movably arranged in the concave cavity up and down; and a second return spring is arranged between the top plate and the lower die holder.

Furthermore, an included angle of 45 degrees is formed between the inclined direction of the annular inclined plane and the central axis of the stamping head.

Further, a fixing plate is arranged on the bottom surface of the lower die base; a positioning rod is arranged on the fixing plate; the upper end of the positioning rod penetrates through the lower die holder, the lower cushion plate and the lower clamping plate and extends to the upper part of the lower clamping plate; and the stripper plate is provided with a positioning counter bore corresponding to the positioning rod.

Further, the lower clamping plate is provided with a mounting hole which vertically penetrates through the lower clamping plate; an insert is arranged in the mounting hole; the cavity is formed on the insert.

Furthermore, an installation cavity is arranged below the concave cavity on the insert; the top plate is arranged in the mounting cavity and is in up-and-down sliding connection with the insert; the upper end of the top plate is movably inserted into and taken out of the concave cavity; an opening is formed in the bottom of the mounting cavity; when the upper die assembly and the lower die assembly are in a die closing state, the top surface of the top plate is flush with the bottom surface of the cavity, and the bottom surface of the top plate abuts against the lower base plate.

Furthermore, a fillet is arranged at the intersection of the bottom end face and the annular side face.

Furthermore, an avoiding groove is formed in the end face of the bottom of the stamping head.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a cooperation of punching press head is used, and the design has annular inclined plane on the punching press head. When the upper die assembly and the lower die assembly are assembled, the annular inclined surface can be pressed at the rough edge of the annular workpiece, so that the rough edge of the annular workpiece is repaired in a chamfering mode. Through the mode of mould punching press processing, the processing speed of trimming is fast, and the treatment effeciency is high, effectively adapts to the production and processing of modulus of continuity.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1 is a schematic three-dimensional structure of a ring-shaped workpiece in the prior art;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 2 after processing;

fig. 4 is a schematic front view structure diagram of the present invention;

fig. 5 is a schematic structural view of a front view of the stamping head of the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

fig. 7 is a front view structural schematic diagram of the lower die assembly of the present invention;

fig. 8 is a front view structure diagram of the present invention in a mold closing state;

FIG. 9 is an enlarged view of FIG. 8 at B;

wherein: 1. an upper die assembly; 11. an upper die holder; 12. an upper base plate; 13. an upper splint; 14. removing the back plate; 15. A material removing plate; 16. a first return spring; 2. a lower die assembly; 21. a lower base plate; 22. a lower splint; 3. punching a head; 31. a bottom end face; 32. an annular side surface; 33. an annular bevel; 34. an avoidance groove; 4. an insert; 41. a concave cavity; 42. a mounting cavity; 5. a top plate; 51. a second return spring; 6. positioning a rod; 61. positioning the counter bore; 7. an annular sidewall; 71. burrs are formed; 72. an annular protrusion.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Fig. 4-9 show a stamping die for trimming the end face of an annular workpiece, which comprises an upper die assembly 1 and a lower die assembly 2. The upper die assembly 1 comprises an upper die base 11, an upper clamping plate 13 fixed at the bottom of the upper die base 11, a stripper plate 14 movably arranged below the upper clamping plate 13, a stripper plate 15 fixed at the bottom of the stripper plate 14, and a first return spring 16 connected between the upper clamping plate 13 and the stripper plate 14. An upper pad 12 is also installed between the upper clamp plate 13 and the upper die base 11. The stripper plate 14 and the stripper plate 15 move up and down by the guide posts. A first return spring 16 is distributed between the upper clamping plate 13 and the backing plate 14. The lower die assembly 2 includes a lower die base 21, a lower backing plate 22 fixed to the lower die base 21, and a lower clamping plate 23 fixed to the lower backing plate 22. The upper die assembly 1 is driven by a hydraulic driving mechanism to move up and down integrally.

Wherein, the upper clamping plate 13 is provided with a punching head 3. The lower end of the punching head 3 movably penetrates through the stripper plate 14 and the stripper plate 15. The punch 13 includes a bottom end face 31, an annular side face 32 connected to the bottom end face 31, and an annular inclined face 33 connected to an upper end of the annular side face 32. The lower end of the annular inclined surface 33 is close to the central position of the punch 3, and the upper end of the annular inclined surface 33 extends in a direction away from the central position of the punch 3. The annular side surface 32 is a cylindrical surface and the annular side wall 7 of the annular workpiece has an inner side wall and an outer side wall. The annular side 32 is adapted to the inner side wall of the annular side wall 7. The height of the annular side surface 32 is adapted to the height of the annular side wall 7. The annular bevel 33 is of a mesa configuration. The inclination direction of the annular inclined surface 33 (the extending direction of the generatrix of the annular inclined surface 33) forms an angle of 45 ° with the central axis of the punch 3. The intersection of the bottom end face 31 and the annular side face 32 is formed with a fillet. The fillet is adapted to the fillet at the corresponding position in the annular workpiece.

The lower plate 23 is provided with a cavity 41 corresponding to the punch 3. The cavity 41 is adapted to the outer contour of the annular workpiece, and the annular workpiece 41 can be accommodated in the cavity 41 in a tight fit. When the lower end of the punch 3 enters the cavity 41, a gap for accommodating the annular side wall 7 of the annular workpiece is formed between the annular side face of the punch 3 and the inner peripheral face of the recess 41.

The cavity 41 is internally and vertically movably provided with a top plate 5. A plurality of groups of second return springs 51 are arranged between the top plate 5 and the lower die base 21. The second return spring 51 serves to provide an upward elastic force so that the top plate 5 has a tendency to always keep moving upward.

The bottom surface of the lower die base 21 is provided with a fixing plate 6. The fixing plate 6 is provided with a positioning rod 61. The upper end of the positioning rod 61 passes through the lower die holder 22, the lower bolster 22 and the lower clamping plate 23, and extends above the lower clamping plate 23. A positioning counter bore 151 is processed on the stripper plate 15 corresponding to the positioning rod 61. When the upper die assembly 1 and the lower die assembly 2 are clamped, the upper end of the positioning rod 61 enters the positioning counter bore 151. The positioning rod 61 and the positioning counter bore 151 are matched with each other, so that the positions of the upper die assembly 1 and the lower die assembly 2 in the die closing process are accurate and reliable, and the downward movement distance of the stripper plate 15 can be limited.

As shown in fig. 7, the lower plate 23 is provided with a mounting hole vertically penetrating the lower plate 23. The insert 4 is fitted in the mounting hole. A cavity 41 is formed in the insert 4. A mounting cavity is machined in the insert 4 below the cavity 41. The top plate 5 is installed in the installation cavity and is connected with the insert 4 in a vertical sliding mode through a guide groove sliding block structure. The upper end of the top plate 5 is movable into and out of the cavity 41. The bottom of the installation cavity is opened. When upper mold unit 1 and lower mold unit 2 are in a clamped state, the top surface of top plate 5 is flush with the bottom surface of cavity 41, and the bottom surface of top plate 5 abuts on lower bolster plate 22. When the upper die assembly 1 and the lower die assembly 2 are in a separated state, the top plate 5 can eject the annular workpiece located in the cavity 41 out of the cavity 41 by the elastic force of the second return spring 51.

The bottom end face 31 of the punch 3 is provided with an escape groove 34. During the pressing down process of the punch, the annular boss 72 on the annular workpiece enters the escape groove 34, thereby preventing the annular boss 72 from interfering with the punch 3.

As shown in fig. 8 and 9, the ring-shaped workpiece is moved to a predetermined position above the top plate 5 by the production process of the progressive die. During the closing of the upper and lower die assemblies 1 and 2, the punch 3 presses down the annular workpiece so that the annular workpiece abuts on the top surface of the top plate 5 and enters the cavity 41. The annular side wall 7 of the annular workpiece is confined between the annular side surface 32 on the punch 3 and the inner peripheral surface of the recess 41. Meanwhile, the circular inclined plane 33 on the punch 3 synchronously presses down the burr 71 position of the circular workpiece, and presses down the burr 71 to an oblique angle (as shown in fig. 3), so as to finish the burr trimming operation. After the operation is finished, the upper die assembly 1 and the lower die assembly 2 are separated, and the top plate 5 ejects the annular workpiece out of the cavity.

The mode of chamfer is passed through to the embodiment, repairs annular workpiece's deckle edge, and through mould stamping process's mode, the processing speed of repairing deckle edge is fast, and the treatment effeciency is high, effectively adapts to the production and processing of modulus of continuity.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transformation that the content of the specification does, or directly or indirectly use in other related technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. A stamping die for deburring the end face of an annular workpiece comprises an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die base, an upper clamping plate fixed at the bottom of the upper die base, a stripping plate movably arranged below the upper clamping plate, a stripping plate fixed at the bottom of the stripping plate and a first return spring connected between the upper clamping plate and the stripping plate; the lower die assembly comprises a lower die base, a lower backing plate fixed on the lower die base and a lower clamping plate fixed on the lower backing plate; the method is characterized in that:

2. The stamping die for deburring of end faces of annular workpieces as set forth in claim 1, wherein: an included angle of 45 degrees is formed between the inclination direction of the annular inclined plane and the central axis of the stamping head.

3. The stamping die for deburring of end faces of annular workpieces as set forth in claim 1, wherein: a fixing plate is arranged on the bottom surface of the lower die base; a positioning rod is arranged on the fixing plate; the upper end of the positioning rod penetrates through the lower die holder, the lower cushion plate and the lower clamping plate and extends to the upper part of the lower clamping plate; and the stripper plate is provided with a positioning counter bore corresponding to the positioning rod.

4. The stamping die for deburring of end faces of annular workpieces as set forth in claim 1, wherein: the lower clamping plate is provided with a mounting hole which vertically penetrates through the lower clamping plate; an insert is arranged in the mounting hole; the cavity is formed on the insert.

5. The stamping die for deburring of end faces of annular workpieces as set forth in claim 4, wherein: an installation cavity is arranged below the concave cavity on the insert; the top plate is arranged in the mounting cavity and is in up-and-down sliding connection with the insert; the upper end of the top plate is movably inserted into and taken out of the concave cavity; an opening is formed in the bottom of the mounting cavity; when the upper die assembly and the lower die assembly are in a die closing state, the top surface of the top plate is flush with the bottom surface of the cavity, and the bottom surface of the top plate abuts against the lower base plate.

6. The stamping die for deburring of end faces of annular workpieces as set forth in claim 1, wherein: and a fillet is arranged at the intersection of the bottom end face and the annular side face.

7. The stamping die for deburring of end faces of annular workpieces as set forth in claim 1, wherein: and an avoiding groove is formed in the end face of the bottom of the stamping head.