CN212419278U

CN212419278U - High-strength punching die

Info

Publication number: CN212419278U
Application number: CN202020858972.5U
Authority: CN
Inventors: 高修兰
Original assignee: Nanjing Qunwei Precision Machinery Manufacturing Co ltd
Current assignee: Nanjing Qunwei Precision Machinery Manufacturing Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-01-29
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a high-strength punching die, which relates to a punching die and aims to solve the problem that after a punch or an upper die is damaged, the upper die and the punch are required to be scrapped simultaneously due to the fixed connection of the punch and the upper die, thereby causing waste; when using this mould, install the drift through coupling assembling earlier, place the work piece on the lower mould again, go up the mould and promote the drift and extrude the work piece, accomplish the processing to the work piece, when the drift or go up the mould and take place to damage, in time dismantle the drift to mould or drift are gone up in convenient the retrieving, improve the utilization ratio of going up mould and drift, reduce extravagant possibility.

Description

High-strength punching die

Technical Field

The utility model relates to a stamping die, more specifically say, it relates to a die-cut mould of high strength.

Background

The punching die is a special process device for processing materials into parts in cold stamping processing; stamping is a press working method in which a die and a punch mounted on a press machine are used to apply pressure to a material to cause separation or plastic deformation of the material, thereby obtaining a desired part.

Chinese patent No. CN202239199U discloses a punching die structure, which includes an upper die, a punch mounted on the upper die, and a lower die, wherein the front end surface of the punch is a step structure composed of a punching plane and a punching inclined plane. The utility model discloses a change the drift structure, changed the atress condition when the drift cuts into, prevented the risk of drift tipping and disconnected drift.

When using, promote the drift and remove, the drift drives die-cut plane and die-cut inclined plane and removes to accomplish die-cut, but among the above-mentioned process, when the drift in the course of working, the drift perhaps goes up the mould and takes place to damage the back, because drift and last mould fixed connection, need scrap with last mould and drift simultaneously, cause the waste.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a die-cut mould of high strength, its advantage lies in conveniently separating the drift and going up the mould to improve the drift and go up the utilization ratio of mould, reduce extravagant possibility.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a die-cut mould of high strength, includes cope match-plate pattern and the lower bolster of relative setting with the cope match-plate pattern, still including setting up the drift that is close to lower bolster one side at the cope match-plate pattern, the drift passes through coupling assembling and dismantles the connection on the cope match-plate pattern.

Through adopting above-mentioned technical scheme, when using this mould, earlier through coupling assembling installation drift, place the work piece on the lower mould again, go up the mould and promote the drift and extrude the work piece, accomplish the processing to the work piece, when drift or last mould take place to damage, in time dismantle the drift to mould or drift are gone up in the convenient recovery, the utilization ratio of mould and drift is gone up in the improvement, reduces extravagant possibility.

Further, coupling assembling is including inserting the clamping screw who establishes on the cope match-plate pattern roof, the drift is close to the one end of cope match-plate pattern is equipped with and supplies clamping screw male fixed orifices, the drift with clamping screw threaded connection, the roof of drift with the diapire of cope match-plate pattern is inconsistent, the one end that clamping screw kept away from the drift is equipped with the crown plate, the crown plate with the roof of cope match-plate pattern is inconsistent.

Through adopting above-mentioned technical scheme, during the installation drift, earlier insert the cope match-plate pattern with clamping screw in, rotate the drift again to clamping screw inserts in the fixed orifices, with this installation of accomplishing the drift smoothly, when needs dismantle the drift, the extrusion crown plate, thereby the crown plate supports tightly on the cope match-plate pattern, will rotate the drift again, thereby separation fixed orifices and clamping screw accomplish the dismantlement of drift.

Furthermore, the connecting assembly comprises a connecting rod connected in the upper die plate in a sliding manner, a fixed block arranged on the end wall of the connecting rod and a fixed spring arranged on the fixed block, the connecting rod is arranged along the radial direction of the punch, and one end, far away from the fixed block, of the connecting rod extends out of the upper die plate;

be equipped with on the diapire of cope match-plate pattern and supply drift male connecting hole, be equipped with the locating hole on the pore wall of connecting hole, the fixed block is located in the locating hole, fixed spring one end is connected on the side of fixed block, the other end is connected on the hole diapire of locating hole, the fixed block is kept away from fixed spring's one end and is stretched out the fixed orifices, the fixed orifices stretches out the one end of fixed orifices is equipped with the inclined plane of sliding, the inclined plane orientation of sliding one side setting that the drift inserted the connecting hole, be equipped with on the lateral wall of drift and supply fixed block.

By adopting the technical scheme, when the punch is fixed, the punch is pushed to be inserted into the connecting hole, the punch extrudes the sliding inclined plane, the fixing block extrudes the fixing spring and the connecting rod, the fixing spring generates compression deformation, the connecting rod slides in the upper template, the fixing hole extends into the fixing hole, and when the positioning hole is opposite to the fixing hole, the fixing spring pushes the fixing block to extend out of the fixing hole and enter the positioning hole, so that the punch is fixed; when the punch needs to be disassembled, the connecting rod is pulled, so that the fixing block is driven to stretch into the fixing hole, the punch is pulled to leave the connecting hole, and the disassembly of the punch is smoothly completed.

Furthermore, the lateral wall of fixed block is fitted with a contraceptive ring and is equipped with the limiting plate, the side of limiting plate with the pore wall of fixed orifices slides and is connected.

Through adopting above-mentioned technical scheme, the fixed block drives the limiting plate and removes at the removal in-process, and limiting plate and fixed orifices are to the cooperation, and the moving direction of restriction fixed block reduces the fixed block and takes place the possibility of skew at the removal in-process.

Furthermore, a clamping plate is arranged on the hole wall of the positioning hole in a replacement mode, the clamping plate is located on one side, away from the fixed spring, of the limiting plate, and the side face of the clamping plate is abutted to the side face of the limiting plate.

Through adopting above-mentioned technical scheme, the cardboard restricts the displacement range of limiting plate to the removal of restriction fixed block reduces the fixed block and stretches out the possibility of fixed orifices at the removal in-process with this.

Furthermore, the bottom wall of the upper die plate is provided with a discharging spring, the discharging spring is arranged along the thickness direction of the upper die plate, one end, far away from the upper die plate, of the discharging spring is provided with a discharging plate, and the discharging plate is connected with the punch in a sliding mode.

Through adopting above-mentioned technical scheme, in the course of working, accomplish die-cut back, when going up the mould and drive the drift and remove, the spring of unloading is in compression state, extrudees the stripper, thereby the stripper extrudees the work piece, separates gradually when drift and work piece, and the spring of unloading constantly lengthens to drive the stripper and remove, accomplish the separation of drift and work piece smoothly.

Furthermore, a guide post is arranged on the bottom wall of the upper template, the axis of the guide post is parallel to the axis of the punch, and one end, far away from the upper template, of the guide post penetrates through the stripper plate.

Through adopting above-mentioned technical scheme, at the stripper removal in-process, the direction of movement of stripper is restricted to the guide post, reduces the possibility that the stripper takes place the skew at the removal in-process.

Further, one end, far away from the upper die plate, of the punch is provided with a punching tip.

Through adopting above-mentioned technical scheme, die-cut pointed end improves the sharpness of drift, is favorable to the drift to process the work piece smoothly.

To sum up, the utility model discloses following beneficial effect has:

1. before a workpiece is machined, a punch is installed through the connecting assembly, then the workpiece is placed on the lower die, the upper die is pushed to move, and therefore the punch is pushed to extrude the workpiece, and the workpiece is machined; when the punch or the upper die is damaged, the punch is disassembled, so that the punch and the upper die are separated, the upper die or the punch is smoothly recycled, the utilization rate of the upper die and the punch is improved, and the possibility of waste is reduced;

2. in the moving process of the fixed block, the limiting plate is driven to move, and the limiting plate slides with the hole wall of the fixed hole, so that the moving direction of the fixed block is limited, and the possibility of deviation of the fixed block in the moving process is reduced;

3. the punching tip is beneficial to improving the sharpness of the punch, so that the workpiece can be conveniently punched by the punch.

Drawings

Fig. 1 is a schematic structural diagram of the first embodiment.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a schematic structural diagram of the second embodiment.

Fig. 4 is a partial structural view in section from B-B in fig. 3.

Fig. 5 is an enlarged view of the portion C in fig. 4.

In the figure: 1. mounting a template; 11. a discharge spring; 12. a guide post; 13. a jack; 14. connecting holes; 141. a fixing hole; 142. clamping a plate; 2. a punch; 21. punching a tip; 22. a stripper plate; 221. a sliding hole; 222. a guide hole; 23. mounting holes; 24. positioning holes; 3. a connecting assembly; 31. fixing the screw rod; 32. a ring plate; 33. a connecting rod; 34. a fixed block; 341. a sliding slope; 342. a limiting plate; 35. fixing the spring; 4. a lower template; 41. and (6) punching.

Detailed Description

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

The first embodiment is as follows:

referring to fig. 1, a die-cut mould of high strength, it includes cope match-plate pattern 1, lower bolster 4 and drift 2, and cope match-plate pattern 1 sets up with lower bolster 4 is relative, and cope match-plate pattern 1 adopts circularly, and drift 2 is connected on the diapire of cope match-plate pattern 1 through coupling assembling 3 dismantlement, and the one end that top match-plate pattern 1 was kept away from to drift 2 is equipped with die-cut pointed end 21, is equipped with on the roof of lower bolster 4 and supplies drift 2 male 41 that punches a hole.

Referring to fig. 1, the side surface of the upper die plate 1 is provided with four discharging springs 11, the discharging springs 11 are arranged along the axial direction of the punch 2, one end of each discharging spring 11, which is far away from the upper die plate 1, is provided with a discharging plate 22, and the discharging plate 22 is provided with a sliding hole 221 for the punch 2 to slide.

Referring to fig. 1, a guide post 12 is arranged between adjacent discharging springs 11, the guide post 12 is arranged along the axial direction of the punch 2, the end wall of the guide post 12 is welded on the upper die plate 1, and a guide hole 222 for the guide post 12 to slide is arranged on the side surface of the discharging plate 22; when a workpiece is machined, the punch 2 is inserted into the sliding hole 221, the punch 2 is installed through the connecting assembly 3, the workpiece is placed on the lower die plate 4 again, the punch 2 is pushed to move through the upper die plate 1, the discharging plate 22 abuts against the workpiece tightly, the discharging spring 11 is compressed by the upper die plate 1, and the punch 2 extrudes the workpiece and then is inserted into the punched hole 41 to complete machining; during unloading, the upper die plate 1 moves to drive the punch 2 to move, the unloading plate 22 tightly abuts against a workpiece under the compression of the unloading spring 11, the unloading spring 11 is gradually stretched when the punch 2 is smoothly separated from the workpiece, and the unloading spring 11 drives the unloading plate 22 to move to finish unloading; when drift 2 or cope match-plate pattern 1 take place to damage, dismantle drift 2 through coupling assembling 3, conveniently retrieve cope match-plate pattern 1 or drift 2 to this improves the utilization ratio of cope match-plate pattern 1 and drift 2, reduces extravagant possibility.

Referring to fig. 2, the connecting assembly 3 includes a fixing screw 31 and a ring plate 32 disposed on an end wall of the fixing screw 31, the ring plate 32 and the fixing screw 31 are integrally manufactured, the upper mold plate 1 is provided with an insertion hole 13, the fixing screw 31 is inserted into the insertion hole 13, a diameter of the ring plate 32 is larger than that of the insertion hole 13, and a bottom wall of the ring plate 32 is abutted to a top wall of the upper mold plate 1; a mounting hole 23 is formed in one end, far away from the punching tip 21, of the punch 2, a fixing screw 31 penetrates through one end of the insertion hole 13 and is inserted into the mounting hole 23, the fixing screw 31 is in threaded connection with the punch 2, and the end wall of the punch 2 is abutted to the bottom wall of the upper template 1; when the punch 2 is installed, the fixing screw 31 is inserted into the insertion hole 13, the installation hole 23 is aligned with the fixing screw 31, the annular plate 32 is extruded, the rotation of the fixing screw 31 is limited, the punch 2 is rotated, the fixing screw 31 enters the installation hole 23, and the installation of the punch 2 is completed smoothly; when the punch 2 needs to be disassembled, the annular plate 32 is pressed to limit the rotation of the fixing screw 31, and the punch 2 is rotated, so that the punch 2 and the fixing screw 31 are separated, and the disassembly of the punch 2 and the upper die plate 1 is completed.

The implementation principle of the above embodiment is as follows: when a workpiece is machined, a punch 2 is installed through a connecting assembly 3, the workpiece is placed on a lower template 4, and then the upper template 1 is moved, so that the punch 2 is pushed to extrude the workpiece, and the machining is finished; when drift 2 or cope match-plate pattern 1 take place to damage, dismantle drift 2 through coupling assembling 3, separate cope match-plate pattern 1 and drift 2 to retrieve cope match-plate pattern 1 and drift 2 smoothly, improve cope match-plate pattern 1 and drift 2's utilization ratio, reduce extravagant possibility.

Example two:

a high-strength punching die, referring to fig. 3 and 4, based on embodiment 1, the present embodiment is different from embodiment 1 in that: the upper die plate 1 adopts the rectangle, coupling assembling 3 includes connecting rod 33, fixed block 34 and fixed spring 35, connecting rod 33 slides and connects in the upper die plate 1, connecting rod 33 sets up along the axis direction of drift 2, be equipped with connecting hole 14 on the diapire of upper die plate 1, drift 2 is kept away from the one end of die-cut pointed end 21 and is inserted in connecting hole 14, be equipped with fixed orifices 141 on the pore wall of connecting hole 14, the axis of fixed orifices 141 is mutually perpendicular with the axis of connecting hole 14, the one end of connecting rod 33 stretches into in the fixed orifices 141, the other end stretches out upper die plate 1.

Referring to fig. 4, the fixing block 34 is slidably connected in the fixing hole 141, a side surface of the fixing block 34 is fixedly connected with an end wall of the connecting rod 33, one end of the fixing spring 35 is fixedly connected with a side surface of the fixing block 34, the other end of the fixing spring is fixedly connected with a hole bottom wall of the fixing hole 141, and the fixing spring 35 is sleeved on an outer side of the connecting rod 33.

Referring to fig. 5, a sliding inclined plane 341 is disposed on a side of the fixing block 34 away from the connecting rod 33, the sliding inclined plane 341 extends out of the fixing hole 141, the sliding inclined plane 341 is disposed toward a side of the punch 2 inserted into the connecting hole 14, and a positioning hole 24 for inserting the sliding inclined plane 341 is disposed on a side wall of the punch 2; when the punch 2 is installed, the punch 2 is inserted into the connecting hole 14, the sliding inclined surface 341 is extruded, the sliding inclined surface 341 compresses the fixing spring 35 and pushes the connecting rod 33 to slide in the upper die plate 1, the fixing block 34 extends into the fixing hole 141, the positioning hole 24 is opposite to the fixing block 34, the fixing spring 35 pushes the fixing block 34 to slide in the fixing hole 141, the connecting rod 33 is driven to slide, and the fixing block 34 extends into the positioning hole 24 to smoothly fix the punch 2.

Referring to fig. 4, when the punch 2 needs to be disassembled, the connecting rod 33 is pulled to drive the fixing block 34 to extrude the fixing spring 35, so that the fixing block 34 leaves the positioning hole 24, and the disassembling of the punch 2 is smoothly completed.

Referring to fig. 5, a limiting plate 342 is annularly arranged on the side wall of the fixed block 34, one side of the limiting plate 342, which is away from the fixed block 34, is connected with the hole wall of the fixed hole 141 in a sliding manner, a clamping plate 142 is arranged on the hole wall of the fixed hole 141, the clamping plate 142 is located on one side of the limiting plate 342, which is away from the fixed spring 35, and the bottom wall of the clamping plate 142 is abutted to the top wall of; in the moving process of the fixed block 34, the limiting plate 342 slides with the hole wall of the fixed hole 141, so that the moving direction of the fixed block 34 is limited, and the possibility of the fixed block 34 shifting in the moving process is reduced; the clamping plate 142 limits the moving range of the limiting plate 342, so that the moving range of the fixing block 34 is limited, and the possibility that the fixing block 34 is separated from the fixing hole 141 in the moving process is reduced.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a die-cut mould of high strength, includes cope match-plate pattern (1) and lower bolster (4) that set up relatively with cope match-plate pattern (1), its characterized in that: the punching die is characterized by further comprising a punching head (2) arranged on one side, close to the lower die plate (4), of the upper die plate (1), and the punching head (2) is detachably connected to the upper die plate (1) through a connecting assembly (3).

2. A high strength blanking die according to claim 1, wherein: coupling assembling (3) are including inserting clamping screw (31) of establishing on cope match-plate pattern (1) roof, drift (2) are close to the one end of cope match-plate pattern (1) is equipped with and supplies clamping screw (31) male fixed orifices (141), drift (2) with clamping screw (31) threaded connection, the roof of drift (2) with the diapire of cope match-plate pattern (1) is inconsistent, the one end that drift (2) were kept away from in clamping screw (31) is equipped with crown plate (32), crown plate (32) with the roof of cope match-plate pattern (1) is inconsistent.

3. A high strength blanking die according to claim 2, wherein: the connecting assembly (3) comprises a connecting rod (33) connected in the upper die plate (1) in a sliding mode, a fixing block (34) arranged on the end wall of the connecting rod (33) and a fixing spring (35) arranged on the fixing block (34), the connecting rod (33) is arranged along the radial direction of the punch (2), and one end, far away from the fixing block (34), of the connecting rod (33) extends out of the upper die plate (1);

be equipped with on the diapire of cope match-plate pattern (1) and supply drift (2) male connecting hole (14), be equipped with locating hole (24) on the pore wall of connecting hole (14), fixed block (34) are located in locating hole (24), fixed spring (35) one end is connected on the hole diapire of locating hole (24) the side, the other end of fixed block (34), the one end that fixed spring (35) were kept away from in fixed block (34) stretches out fixed orifices (141), fixed orifices (141) stretch out the one end of fixed orifices (141) is equipped with inclined plane of sliding (341), inclined plane of sliding (341) orientation one side setting that drift (2) inserted connecting hole (14), be equipped with on the lateral wall of drift (2) and supply fixed block (34) male locating hole (24).

4. A high strength blanking die according to claim 3, wherein: the lateral wall of fixed block (34) is fitted with the limiting plate (342) on a ring, the side of limiting plate (342) with the pore wall of fixed orifices (141) slides and is connected.

5. A high strength blanking die according to claim 4, wherein: the hole wall of the positioning hole (24) is provided with a clamping plate (142), the clamping plate (142) is located on one side, away from the fixed spring (35), of the limiting plate (342), and the side face of the clamping plate (142) is abutted to the side face of the limiting plate (342).

6. A high strength blanking die according to claim 1, wherein: the die is characterized in that a discharging spring (11) is arranged on the bottom wall of the upper die plate (1), the discharging spring (11) is arranged along the thickness direction of the upper die plate (1), a discharging plate (22) is arranged at one end, far away from the upper die plate (1), of the discharging spring (11), and the discharging plate (22) is connected with the punch (2) in a sliding mode.

7. A high strength blanking die according to claim 6, wherein: the bottom wall of the upper die plate (1) is provided with a guide column (12), the axis of the guide column (12) is parallel to the axis of the punch (2), and one end, far away from the upper die plate (1), of the guide column (12) penetrates through the stripper plate (22).

8. A high strength blanking die according to claim 1, wherein: and one end of the punch (2) far away from the upper template (1) is provided with a punching tip (21).