CN223531243U - Integrated stamping die structure - Google Patents

Abstract

The utility model discloses a punching and overturning integrated composite stamping die structure, and belongs to the technical field of stamping. The punch and die solves the defects that in the prior art, a punch of a traditional punching and turning integrated composite stamping die is difficult to replace and waste materials are improperly processed. The main structure of the punching die comprises an upper die plate and a lower die plate, wherein at least one group of pressing mechanisms are arranged on the upper die plate, a hole flanging mechanism and at least one group of punching mechanisms are arranged between the upper die plate and the lower die plate, the hole flanging mechanism and the punching mechanisms are identical in structure and comprise punch components arranged on the upper die plate and die components arranged on the lower die plate, the punch components comprise a punch, a punch fixing plate I arranged on the lower end face of the upper die plate and a punch fixing plate II arranged on the punch fixing plate I, and the punch is arranged on the punch fixing plate II through a punch quick-change mechanism. The utility model is mainly used for carrying out a plurality of hole flanging and conical counter bore parts on thin plates and medium plates.

Description

Punching and turning integrated composite punching die structure

Technical Field

The utility model belongs to the technical field of stamping, and particularly relates to a stamping and overturning integrated composite stamping die structure.

Background

With the development of manufacturing industry, a stamping process is used as an important forming mode in metal processing, and is widely applied to industries such as automobiles, household appliances, electronics and the like. The traditional punching process sequentially completes hole flanging by punching and then using a single hole flanging die, so that the production efficiency is extremely low, the process beats are difficult to match, and great difficulty is caused to production organization and order delivery. Therefore, in order to improve the production efficiency and reduce the time for process conversion, a composite stamping die has been developed which is capable of performing operations of a plurality of processes, such as punching, flanging, bending, etc., on one station.

However, the existing composite stamping die has some defects that:

1) The structure of the die is complex, and the assembly and maintenance are inconvenient, because of the need of integrating multiple functions, the structure of the die is complex, thereby not only increasing the design and manufacturing difficulty of the die, but also bringing inconvenience to the later maintenance;

2) The punch is difficult to replace, namely, in the actual production process, the punches with different sizes or shapes can be required to be replaced according to different product specifications, and if the punches are inconvenient to replace, the flexibility and the efficiency of production can be seriously affected;

3) The waste materials generated in the stamping process can not be discharged in time, so that the die can be blocked, the product quality is affected, and even the equipment is damaged;

4) The positioning accuracy is not high, and for the processing of some precise parts, the positioning accuracy of the die directly influences the quality and the yield of products.

For example, the Chinese patent publication No. CN 216857974U discloses a sheet metal stamping and turning integrated stamping die, wherein a discharging hole is formed in the bottom of a mounting groove of a lower base, the discharging hole penetrates through the bottom surface of an abutting block and is communicated with the discharging hole, after a sheet metal part is punched by a punching section, waste can fall from the position of the discharging hole in the abutting block and from the discharging hole, and therefore, the waste can fall from the lower base to be conveniently discharged, but the stamping die has the defects that a workpiece to be stamped cannot be pressed, so that displacement is easy to occur in the punching process, and positioning is inaccurate.

Disclosure of utility model

The utility model aims to solve the technical problem of overcoming the defects in the prior art and providing a punching and overturning integrated composite punching die structure.

In order to achieve the above purpose, the present utility model is realized by adopting the following technical scheme:

The utility model provides an integrative compound stamping die structure is turned over in punching, includes cope match-plate pattern and lower bolster, be provided with at least a set of hold-down mechanism on the cope match-plate pattern, be provided with hole flanging mechanism and at least a set of mechanism that punches a hole between cope match-plate pattern and the lower bolster, hole flanging mechanism is the same with mechanism structure that punches a hole, all including installing the punch subassembly on the cope match-plate pattern and installing the die subassembly on the lower bolster, the punch subassembly includes the punch, installs punch fixed plate one on the cope match-plate pattern lower extreme face and installs punch fixed plate two on punch fixed plate one, the punch passes through the quick change mechanism of drift and installs on punch fixed plate two.

Preferably, the die assembly comprises a lower cushion block arranged on the lower die plate, a lower base plate arranged on the lower cushion block and a die fixing plate arranged on the lower base plate, and a die for matching with the punch is arranged on the die fixing plate.

Preferably, the pressing mechanism comprises a pressing plate arranged on the punch fixing plate I, and a material returning plate is arranged at the lower end of the pressing plate through a spring.

Preferably, the punch quick-change mechanism comprises a detachable plate, the detachable plate is arranged on the punch fixing plate II through a screw I, a groove is formed in the side face of the punch, and one end of the detachable plate is clamped into the groove.

Preferably, the lower end of the female die is provided with a waste chip discharge port, and the waste chip discharge port extends downwards to sequentially penetrate through the lower base plate, the lower cushion block and the lower template.

Preferably, one side of the lower cushion block is connected with the lower die plate through a cylindrical pin, and the other side of the lower cushion block is connected with the lower die plate through a second screw.

Preferably, the female die fixing plate, the lower base plate and the lower cushion block are fixedly connected through three screws.

Preferably, a guide column for guiding is further arranged between the upper template and the lower template.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, two functions of punching and hole flanging are integrated in the same die, so that the process conversion time is reduced, the production efficiency is remarkably improved, and compared with the traditional single-function die, the composite die can complete a plurality of processing steps at one time, and the production period is greatly shortened;

2. The adopted punch quick-change mechanism allows punches with different specifications to be quickly replaced, so that the requirements of disassembly-free maintenance and repair of large-scale dies are met, the whole die is not required to be disassembled, the requirements of products with different sizes and shapes can be met, and the flexibility and the response speed of a production line are greatly improved;

3. The die has simple and clear structural design, all key components such as a punch assembly, a die assembly and the like are easy to assemble and disassemble, so that the daily maintenance and the fault elimination are convenient, the downtime is reduced, and the maintenance cost is reduced;

4. The guide posts are arranged between the upper die plate and the lower die plate, so that the stability and the accuracy of the die in the working process are ensured, defective products caused by die dislocation are effectively avoided, meanwhile, the design of the pressing mechanism is beneficial to keeping the stability of materials in the processing process, and the quality of finished products is further improved;

5. The waste chip removal port arranged at the lower end of the female die can timely and effectively discharge waste generated in the processing process, waste edge materials are discharged downwards, collection is facilitated, damage to the die or influence on subsequent processing caused by waste accumulation is prevented, the working environment is kept clean, and meanwhile, the safety of operators is also protected;

In conclusion, the punching and turning integrated composite stamping die structure provided by the utility model realizes remarkable improvement of production efficiency, effective guarantee of processing quality and effective control of manufacturing cost.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of a punch in the punching mechanism of the present utility model;

fig. 3 is a schematic structural view of a punch in the hole flanging mechanism.

The device comprises a lower die plate 1, a waste chip removing port 2, a cylindrical pin 3, a screw 4, a screw 5, a lower cushion block 6, a pressing plate 7, a screw III, a lower cushion plate 8, a die 9, a die 10, a spring 11, a material returning plate 12, a punch 13, a punch fixing plate II, a punch fixing plate 14, a punch fixing plate I, a guide post 15, a upper die plate 16, a detachable plate 17, a plate 19 to be punched, a punching punch 21, a die fixing plate 22, a screw I, a punch 23 and a groove.

Detailed Description

The utility model will now be further illustrated by means of specific examples in connection with the accompanying drawings.

Example 1:

As shown in fig. 1, the punching and turning integrated composite stamping die structure comprises an upper die plate 16 and a lower die plate 1, wherein at least one group of pressing mechanisms are arranged on the upper die plate 16, a hole flanging mechanism and at least one group of punching mechanisms are arranged between the upper die plate 16 and the lower die plate 1, the hole flanging mechanism and the punching mechanisms are identical in structure and comprise punch components arranged on the upper die plate 16 and die components arranged on the lower die plate 1, the punch components comprise a punch 12, a punch fixing plate I14 arranged on the lower end surface of the upper die plate 16 and a punch fixing plate II 13 arranged on the punch fixing plate I14, and the punch 12 is arranged on the punch fixing plate II 13 through a punch quick-change mechanism. The structure of the hole flanging mechanism and the punching mechanism in the present utility model are the same, except that the punch 12 of the hole flanging mechanism and the punch 20 of the punching mechanism are different in appearance, as shown in fig. 2 and 3, to ensure that the hole flanging operation and the punching operation are completed in operation.

Example 2:

The punching and turning integrated composite punching die structure is different from the embodiment 1 in that the die assembly comprises a lower cushion block 5 arranged on a lower die plate 1, a lower base plate 8 arranged on the lower cushion block 5 and a die fixing plate 21 arranged on the lower base plate 8, and the die fixing plate 21 is provided with a die 9 for being matched with a punch 12.

Further, the pressing mechanism comprises a pressing plate 6 arranged on the punch fixing plate I14, a material returning plate 11 is arranged at the lower end of the pressing plate 6 through a spring 10, and in the descending process of the upper die plate 16, the pressing plate 6 pushes the material returning plate 11 to move downwards through the spring 10 to press and fix the plate 19 to be pressed, so that the stability and accuracy of the die in the working process are ensured, and defective products caused by die dislocation are effectively avoided.

Further, the punch quick-change mechanism comprises a detachable plate 17, the detachable plate 17 is arranged on the punch fixing plate II 13 through a screw I22, a groove 23 is formed in the side face of the punch 12, and one end of the detachable plate 17 is clamped into the groove 23. When the punches of different specifications need to be replaced, the first screws 22 can be fixed again, so that the punches can be replaced quickly without disassembling the whole die by loosening the first screws 22, removing the detachable plate 17, then installing a new punch 12, aligning the grooves 23 with the detachable plate 17, and installing the new punch.

Further, the lower end of the female die 9 is provided with the waste chip discharge port 2, the waste chip discharge port 2 extends downwards to sequentially penetrate through the lower base plate 8, the lower cushion block 5 and the lower template 1, waste generated in the processing process can be timely and effectively discharged through the waste chip discharge port 2 arranged at the lower end of the female die 9, waste edge materials are discharged downwards, collection is facilitated, damage to a die or influence on subsequent processing caused by waste accumulation is prevented, the cleanliness of a working environment is maintained, and meanwhile safety of operators is also protected.

Further, one side of the lower cushion block 5 is connected with the lower template 1 through a cylindrical pin 3, the other side of the lower cushion block 5 is connected with the lower template 1 through a screw II 4, and the female die fixing plate 21, the lower cushion plate 8 and the lower cushion block 5 are fixedly connected through a screw III 7.

Further, a guide post 15 for guiding is provided between the upper die plate 16 and the lower die plate 1. In the whole stamping process, the guide post 15 ensures the accurate alignment between the upper die plate 16 and the lower die plate 1, prevents the die from shifting in the moving process, and ensures the processing precision and the service life of the die.

The utility model is mainly used for continuously processing the plate 19 to be punched, and can finish two procedures of punching and hole flanging simultaneously in one stroke. The working principle of the die is as follows:

1. Mold closing process:

The initial position is that the upper die plate 16 is at the highest point, a certain gap is reserved between the punch 12 and the female die 9, and the plate 19 to be punched is placed on the upper end surface of the female die fixing plate 21;

and (3) downward movement, namely when the punching machine drives the upper die plate 16 to move downward, the upper die plate 16 drives the punch assembly to move downward together, and the punch 12 gradually approaches the female die 9.

2. Punching and hole flanging:

The contact material is that when the punch 12 contacts the plate 19 to be punched, the plate 19 to be punched is continuously moved downwards and pressed into the female die 9;

shearing action, namely, shearing force is generated by the relative motion between the punch 12 and the female die 9, so that the plate 19 to be punched is cut off at a preset position to form a hole;

And the waste is discharged, namely the waste generated in the punching and hole flanging processes is discharged through the waste chip discharge port 2, and the waste chip discharge port 2 penetrates through the lower base plate 8, the lower cushion block 5 and the lower template 1, so that smooth discharge of the waste is ensured.

The utility model realizes efficient punching and hole flanging processing, realizes the combined processing of punching and hole flanging by one punching frequency, combines two working procedures into one working procedure, simultaneously has the advantages of quick replacement of the punch, accurate guiding and effective waste discharge, and remarkably improves the production efficiency and the processing quality.

Claims (8)

1. The utility model provides a compound stamping die structure of integrative is turned over in punching, includes cope match-plate pattern (16) and lower bolster (1), wherein be provided with at least one set of hold-down mechanism on cope match-plate pattern (16), be provided with hole flanging mechanism and at least one set of punching mechanism between cope match-plate pattern (16) and lower bolster (1), hole flanging mechanism and punching mechanism structure are the same, all include the punch subassembly of installing on cope match-plate pattern (16) and install the die subassembly on lower bolster (1), the punch subassembly includes punch (12), punch fixed plate one (14) of installing the lower terminal surface of cope match-plate pattern (16) and punch fixed plate two (13) of installing on punch fixed plate one (14), punch (12) are installed on punch fixed plate two (13) through the quick change mechanism of drift.

2. The punching and turning integrated composite stamping die structure according to claim 1, wherein the die assembly comprises a lower cushion block (5) arranged on the lower die plate (1), a lower base plate (8) arranged on the lower cushion block (5) and a die fixing plate (21) arranged on the lower base plate (8), and a die (9) matched with the punch (12) is arranged on the die fixing plate (21).

3. The punching and turning integrated composite stamping die structure according to claim 2, wherein the pressing mechanism comprises a pressing plate (6) arranged on a punch fixing plate I (14), and a material returning plate (11) is arranged at the lower end of the pressing plate (6) through a spring (10).

4. The punching and turning integrated composite punching die structure according to claim 3, characterized in that the punching and quick-change mechanism comprises a detachable plate (17), the detachable plate (17) is arranged on a punch fixing plate II (13) through a screw I (22), a groove (23) is formed in the side face of the punch (12), and one end of the detachable plate (17) is clamped into the groove (23).

5. The punching and turning integrated composite stamping die structure according to any one of claims 2-4, wherein a waste chip discharging port (2) is arranged at the lower end of the female die (9), and the waste chip discharging port (2) extends downwards to sequentially penetrate through the lower base plate (8), the lower cushion block (5) and the lower die plate (1).

6. The punching and turning integrated composite punching die structure according to any one of claims 2-4, characterized in that one side of the lower cushion block (5) is connected with the lower die plate (1) through a cylindrical pin (3), and the other side is connected with the lower die plate (1) through a screw II (4).

7. The punching and overturning integrated composite stamping die structure according to any one of claims 2 to 4, wherein the female die fixing plate (21), the lower base plate (8) and the lower cushion block (5) are fixedly connected through a screw III (7).

8. The punching and turning integrated composite punching die structure according to any one of claims 1 to 4, characterized in that a guide column (15) for guiding is further arranged between the upper die plate (16) and the lower die plate (1).