CN218903341U - Half-shear stamping die - Google Patents

Abstract

The application relates to a half cut stamping die for half cut stamping of work piece includes: the mold comprises a first mold, a second mold and a positioning assembly, wherein the first mold comprises a first seat body and a mold core piece, the mold core piece is connected with the first seat body in a sliding manner, the second mold comprises a second seat body, the second seat body is provided with a cavity structure, a positioning cavity is formed by encircling a first plate body and a second plate body of the positioning assembly, the cavity structure is positioned in the positioning cavity, and the thickness of the first plate body and the thickness of the second plate body are equal to the thickness of a workpiece. The positioning cavity formed by the first plate body and the second plate body is used for positioning and pressing a workpiece to be processed, the core piece is moved to realize semi-shearing of the workpiece, the first seat body and the second seat body are tightly pressed together to maintain pressure, and the problem of rebound of forming angles caused by a semi-shearing process is solved. The method and the device effectively solve the problems that in the prior art, the stamping die is adopted to carry out semi-shearing process processing, the workpiece cannot be positioned and pressed, and the subsequent production process requirements cannot be met after the workpiece processing is completed.

Description

Half-shear stamping die

Technical Field

The application relates to the technical field of stamping dies, in particular to a half-shear stamping die.

Background

With the development of manufacturing industry, various products are required to be continuously advanced in various processes and implementation equipment, so that the production efficiency and the productivity can be improved, and the production requirement can be met. As an important production means, the press forming has various product structures, complex types and large demand, and various corresponding production dies, while the stamping parts generally use economic-grade precision as design precision to control production cost.

In the technical field of stamping dies, there are a class of half-shear stamping dies, in which forming features with thickness less than four to five times of material thickness are required to be manufactured on sheet metal products by a half-shear process. In the prior art, the stamping die is directly used for production and manufacturing, because the actual deformation of a product is extremely small, and the processing position of a half-shearing process is usually small, the traditional stamping die cannot position a workpiece to be processed, and the pressing material cannot reach the processing condition of half-shearing, so that the problem that the rebound of a forming angle is relatively large, and the instability of the angle and the size cannot meet the requirement of the subsequent production process of the product after the product is processed is caused.

Disclosure of Invention

The application provides a stamping die is cut to half to solve prior art and adopt stamping die to carry out half shearing technology processing, can not fix a position the work piece and press the material, lead to the work piece processing to accomplish the unable problem that satisfies follow-up production technology demand after.

The application provides a stamping die is cut to half for the half of work piece is cut punching press, include: the mold comprises a first mold, a second mold and a positioning assembly, wherein the first mold comprises a first base body and a core piece, the core piece is slidably connected with the first base body, and the sliding direction is a first direction; the second die comprises a second base, one surface of the second base facing the first base is provided with a cavity structure, and the cavity structure is arranged corresponding to the core piece; the positioning assembly comprises a first plate body and a second plate body, a positioning cavity is formed by the first plate body and the second plate body in a surrounding mode, the cavity structure is located in the positioning cavity, and the thickness of the first plate body and the thickness of the second plate body are equal to the thickness of the workpiece.

Further, the half-shear stamping die further comprises a first pushing assembly, the first pushing assembly comprises a first driving piece and a second driving piece, the first driving piece and the second driving piece are sequentially arranged along the second direction, the first driving piece drives the first base to slide along the first direction, and the second driving piece drives the core piece to slide along the first direction.

Further, the first mold further comprises a pushing block, the pushing block is fixedly connected with the core piece, the pushing block can slide along the first direction, the first driving piece is provided with a first inclined table, when the mold is closed, the first driving piece moves along the second direction, and the first inclined table pushes the pushing block to slide along the first direction.

Further, the core piece still is provided with the spacing groove, and first pedestal still includes spacing draw-in groove and stopper, and the stopper can follow first direction and slide, and spacing chamber is enclosed to spacing groove and spacing draw-in groove, stopper and spacing chamber clearance fit.

Further, the first die further comprises a pushing part, the second driving part further comprises a second inclined table, the pushing part is far away from the pushing block along the first direction and along the second direction, the second inclined table is far away from the first inclined table along the first direction and along the second direction, and when the die is assembled, the first inclined table drives the pushing block to slide along the first direction after the pushing part completes pushing.

Further, the half-shear stamping die further comprises a fixed block, a first elastic piece is arranged between the fixed block and the first base, a second elastic piece is arranged between the fixed block and the second base, a third elastic piece is arranged between the fixed block and the limiting block, and the first elastic piece, the second elastic piece and the third elastic piece apply thrust along the direction away from the fixed block.

Further, the second mold further comprises a discharging structure arranged in the cavity structure, the discharging structure comprises a discharging ejector rod, and the discharging ejector rod can slide relative to the cavity structure along the first direction.

Further, the unloading structure further comprises a fourth elastic piece and a unloading rod body, the unloading rod body can penetrate through the second seat body to be propped against the fixed block, the unloading rod body and the unloading ejector rod are connected with the fourth elastic piece through the connecting piece, one end, away from the connecting piece, of the fourth elastic piece is connected with the second seat body, and the fourth elastic piece props against the connecting piece.

Further, the first plate body is fixedly connected with the first seat body, the second plate body is fixedly connected with the second seat body, and when the die is assembled, the first plate body and the second plate body are in clearance fit with the fixed block.

Further, the half shear stamping die further comprises a second pushing assembly, the second pushing assembly comprises a third driving piece, the second die further comprises a pushing part, and the third driving piece drives the pushing part to slide along the first direction.

Compared with the prior art, the technical scheme provided by the application has the following advantages:

the application provides a stamping die is cut to half for the half punching press of work piece includes: the mold comprises a first mold, a second mold and a positioning assembly, wherein the first mold comprises a first base body and a core piece, the core piece is slidably connected with the first base body, and the sliding direction is a first direction; the second die comprises a second base, one surface of the second base facing the first base is provided with a cavity structure, and the cavity structure is arranged corresponding to the core piece; the positioning assembly comprises a first plate body and a second plate body, a positioning cavity is formed by the first plate body and the second plate body in a surrounding mode, the cavity structure is located in the positioning cavity, and the thickness of the first plate body and the thickness of the second plate body are equal to the thickness of the workpiece. The workpiece to be processed is positioned through the positioning cavity formed by the first plate body and the second plate body in a surrounding mode, meanwhile, the pressing of the workpiece is realized through the mutual contact of the first seat body and the second seat body, and finally, the workpiece is semi-sheared through the movement of the core piece in cooperation with the cavity structure, so that the pressing is reliable, the semi-shearing is performed after the pressing is finished, the processing precision of the semi-shearing process is good, the pressure maintaining can be realized through the tight pressing between the first seat body and the second seat body, and the problem of rebound of the forming angle caused by the semi-shearing process can be effectively reduced. The method and the device effectively solve the problems that in the prior art, the stamping die is adopted to carry out semi-shearing process processing, the workpiece cannot be positioned and pressed, and the subsequent production process requirements cannot be met after the workpiece processing is completed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic perspective view of a half-shear stamping die in use according to an embodiment of the present application;

FIG. 2 shows a schematic perspective view of the half shear stamping die of FIG. 1;

FIG. 3 shows an enlarged partial schematic view of the half shear stamping die of FIG. 2;

FIG. 4 shows a schematic cross-sectional view of the half shear stamping die of FIG. 1;

fig. 5 shows a schematic partial cross-sectional view of the half shear stamping die of fig. 4.

Wherein the above figures include the following reference numerals:

10. a first mold; 11. a first base; 111. a limit clamping groove; 112. a limiting block; 12. a core piece; 121. a limit groove; 13. a pushing block; 14. a pushing part; 15. a positioning accommodation part; 20. a second mold; 21. a second seat body; 211. a cavity structure; 22. a discharging structure; 221. a discharging ejector rod; 222. a fourth elastic member; 223. a force-unloading rod body; 224. a connecting piece; 23. a pushing part; 30. a positioning assembly; 31. a first plate body; 32. a second plate body; 40. a first pushing assembly; 41. a first driving member; 411. a first ramp; 42. a second driving member; 421. a second ramp; 50. a fixed block; 51. a first elastic member; 52. a second elastic member; 53. a third elastic member; 60. a second pushing assembly; 61. a third driving member; 100. a workpiece.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

As shown in fig. 1 and 2, in the technical solution of the embodiments of the present application, a half-shear stamping die is provided, which is used for half-shear stamping of a workpiece 100, and includes: the first mold 10, the second mold 20 and the positioning assembly 30, wherein the first mold 10 comprises a first base 11 and a core piece 12, the core piece 12 is slidably connected with the first base 11, and the sliding direction is a first direction X; the second mold 20 comprises a second base 21, one surface of the second base 21 facing the first base 11 is provided with a cavity structure 211, and the cavity structure 211 is arranged corresponding to the core piece 12; the positioning assembly 30 comprises a first plate 31 and a second plate 32, the first plate 31 and the second plate 32 enclose a positioning cavity, the cavity structure 211 is located in the positioning cavity, and the thickness of the first plate 31 and the second plate 32 is equal to the thickness of the workpiece 100. The workpiece to be processed is positioned through the positioning cavity enclosed by the first plate body 31 and the second plate body 32, meanwhile, the pressing of the workpiece 100 is realized through the mutual contact of the first seat body 11 and the second seat body 21, and finally, the workpiece 100 is half-sheared through the matching of the core piece 12 and the cavity structure 211, so that the setting pressing is reliable, the half-shearing is performed after the pressing is finished, the processing precision of the half-shearing process is good, the pressure maintaining can be realized through the tight pressing between the first seat body 11 and the second seat body 21, and the problem of rebound of the forming angle caused by the half-shearing process can be effectively reduced. The method and the device effectively solve the problems that in the prior art, the stamping die is adopted to carry out semi-shearing process processing, the workpiece 100 cannot be positioned and pressed, and the subsequent production process requirements cannot be met after the workpiece 100 is processed.

As shown in fig. 1 to 3, in the technical solution of the embodiment of the present application, the half-shear stamping die further includes a first pushing assembly 40, where the first pushing assembly 40 includes a first driving member 41 and a second driving member 42 that are sequentially disposed along the second direction Y, the first driving member 41 drives the first base 11 to slide along the first direction X, and the second driving member 42 drives the core piece 12 to slide along the first direction X. The arrangement is such that the core member 12 can slide relative to the first housing 11, and when the first housing 11 is pushed into position, the core member 12 can be pushed by the second driving member 42, thereby achieving half-shearing. When the first base 11 is pushed to the fixed position, i.e. is propped against the second base 21, the pressing of the workpiece 100 is formed at this time, and then the pushing of the core piece 12 is performed to realize half-shearing, when the first pushing assembly 40 is retreated outwards, the second driving piece 42 is separated from the core piece 12 first, then the first driving piece 41 is separated, the first base 11 is separated from the second base 21, and the setting is such that the process from when the second driving piece 42 is separated to when the first driving piece 41 is separated maintains the pressure of the workpiece 100 after half-shearing.

As shown in fig. 1 to 3, in the technical solution of the embodiment of the present application, the first mold 10 further includes a pushing block 13, where the pushing block 13 is fixedly connected to the core piece 12, the pushing block 13 may slide along the first direction X, the first driving member 41 is provided with a first ramp 411, and during mold closing, the first driving member 41 moves along the second direction Y, and the first ramp 411 pushes the pushing block 13 to slide along the first direction X. The push block 13 and the first ramp 411 are configured to control the speed of advance of the push block 13 to accommodate the precise advance control required by the semi-shears. Specifically, an inclined plane with a certain angle is correspondingly arranged on one side of the pushing block 13 away from the core piece 12, pushing is achieved through cooperation of the inclined plane and the first inclined table 411, and the action of the inclined plane and the inclined table can be controlled through controlling the angle and the displacement in the second direction Y, so that the pushing amount along the first direction X is controlled, and the machining precision is controlled. It should be noted that, the pushing block 13 can also be replaced detachably, and according to the angle of the inclined plane, the pushing block can be applied to the change of the pushing amount of the same mold, so that one set of mold can adapt to the production links of multiple half shears with different sizes.

As shown in fig. 4 and fig. 5, in the technical solution of the embodiment of the present application, the core piece 12 is further provided with a limiting slot 121, the first seat 11 further includes a limiting slot 111 and a limiting block 112, the limiting block 112 can slide along the first direction X, the limiting slot 121 and the limiting slot 111 enclose a limiting cavity, and the limiting block 112 is in clearance fit with the limiting cavity. The setting of spacing groove 121, spacing draw-in groove 111 and stopper 112 is used for preventing that core piece 12 from directly sliding out from the cavity of installation, and stopper 112 and spacing cavity clearance fit are specifically clearance fit in first direction X, and such setting can change the size of clearance through changing the stopper 112 of different thickness, and then the propulsive displacement volume of control core piece 12 that can be more accurate. Further, the limit block 112 and the pushing block 13 can be replaced to jointly control the semi-shearing process processing with different requirements.

As shown in fig. 2 and fig. 4, in the technical solution of the embodiment of the present application, the first mold 10 further includes a pushing portion 14, the first driving member 41 further includes a second ramp 421, the pushing portion 14 is far away from the pushing block 13 along the first direction X and along the second direction Y, the first ramp 411 is far away from the first ramp 411 along the first direction X and along the second direction Y, and during mold closing, the second ramp 421 drives the pushing block 13 to slide along the first direction X after the pushing portion 14 completes pushing. The arrangement is such that before the compound die, the first seat body 11 offsets with the second seat body 21 to realize pressing and clamping to the work piece 100, further pressing is carried out after the half shearing is completed, the state that the work piece is in the pressing state before and after the half shearing is guaranteed, on the one hand, the precision of the half shearing can be guaranteed, and on the other hand, the phenomenon that the work piece is deformed when the stress concentration is caused by the small stretching amount of the half shearing can be avoided.

As shown in fig. 2 and fig. 4, in the technical solution of the embodiment of the present application, the semi-shearing stamping die further includes a fixed block 50, a first elastic member 51 is disposed between the fixed block 50 and the first base 11, a second elastic member 52 is disposed between the fixed block 50 and the second base 21, a third elastic member 53 is disposed between the fixed block 50 and the limiting block 112, and thrust is applied to the first elastic member 51, the second elastic member 52 and the third elastic member 53 along a direction away from the fixed block 50. The fixing block 50 is used for processing a reference, the first die 10 and the second die 20 on two sides can approach the fixing block 50, and the length direction of the fixing block 50 is perpendicular to the first direction X and the second direction Y, which is the same as the feeding and discharging directions in practical application, so that the workpiece 100 can be conveniently fed and discharged. The first elastic member 51 and the second elastic member 52 are provided to apply a pushing force so that the first and second housings 11 and 21 are returned to the original positions after the first and third driving members 41 and 61 are separated. The third elastic member 53 is configured to enable the stopper 112 to drive the core member 12 to be in an unextended state when no other force acts, so that the first seat 11 and the second seat 21 can perform pressing of the workpiece.

As shown in fig. 2 and fig. 4, in the technical solution of the embodiment of the present application, the second mold 20 further includes a discharge structure 22 disposed in the cavity structure 211, where the discharge structure 22 includes a discharge ejector rod 221, and the discharge ejector rod 221 may slide along the first direction X relative to the cavity structure 211. The unloading structure 22 is used for pushing out the workpiece 100 located in the cavity structure 211 along the first direction X after the semi-shearing is completed, so as to facilitate the transportation of the workpiece 100. The ejector pins 221 in a particular ejector structure 22 are capable of sliding within the cavity structure 211 to effect ejection of the workpiece 100. It should be noted that the unloading ejector rod 221 and the cavity structure 211 are in clearance fit, and a surface of the unloading ejector rod 221 close to the outlet of the cavity structure 211 is a plane so as to avoid scratching the product.

As shown in fig. 2 and fig. 4, in the technical solution of the embodiment of the present application, the unloading structure 22 further includes a fourth elastic member 222 and a force unloading rod body 223, the force unloading rod body 223 may pass through the second seat body 21 and is abutted against the fixed block 50, the force unloading rod body 223 and the unloading ejector rod 221 are connected with the fourth elastic member 222 through a connecting member 224, one end of the fourth elastic member 222 away from the connecting member 224 is connected with the second seat body 21, and the fourth elastic member 222 abuts against the connecting member 224. During die assembly, the force-unloading rod body 223 is arranged in such a way that the force-unloading rod body 223 is pushed in by the fixing block 50 in the direction away from the fixing block 50, the force-unloading rod body 223 compresses the fourth elastic piece 222 through the connecting piece 224, so that the push force is lost by the force-unloading rod body 221, when part of the workpiece 100 enters the die cavity structure 211 under the pushing of the core piece 12, the push force is not generated on the workpiece 100, the deformation of the workpiece 100 caused by the push force is avoided, after the machining is finished, the whole second die 20 is pushed away under the action of the second elastic piece 52, the compressed fourth elastic piece 222 exerts the push force, on one hand, the workpiece 100 is ejected out by the force-unloading rod body 221, and on the other hand, the force-unloading rod body 223 is pushed to a proper position to prepare for the next half-shearing machining.

In the technical solution of the present embodiment (not shown in the drawings), the first plate 31 is fixedly connected to the first base 11, the second plate 32 is fixedly connected to the second base 21, and during mold closing, both the first plate 31 and the second plate 32 are in clearance fit with the fixing block 50. Such an arrangement avoids the first plate 31 and the second plate 32 from colliding with the fixed block 50, while the clearance fit ensures the precise fit of the two. The two locating plates are arranged on the two base bodies respectively, and can be better located in the first direction X when being combined. It should be noted that, in the present application, the core piece 12 and the first base 11 have a protruding section, that is, the core piece 12 is located above the fixing block 50, so that the observation of the processing position during the processing process and the adjustment can be made in time. The first seat 11 can be further provided with a positioning accommodating part 15 for positioning, when the part to be processed is a bending piece, after the bending die, a part matched with the positioning accommodating part 15 is arranged, and the workpiece 100 is initially positioned so as to ensure that the processing position of the workpiece is accurate before pressing.

As shown in fig. 1 and 2, in the technical solution of the present embodiment, the half-shear stamping die further includes a second pushing assembly 60, the second pushing assembly 60 includes a third driving member 61, the second die 20 further includes a pushing portion 23, and the third driving member 61 drives the pushing portion 23 to slide along the first direction X. The arrangement enables the first pushing component 40 and the second pushing component 60 to move towards the second direction Y at the same time, and the first die 10 and the second die 20 are clamped, so that semi-shearing machining conditions are provided, the first pushing component 40 and the second pushing component 60 can adopt the same driving source in the arrangement, energy sources are better utilized, meanwhile, the first die 10 and the second die 20 are clamped, front and rear material pressing is achieved, the structural precision of a workpiece 100 after machining is guaranteed, the clamping process is synchronous, machining time can be effectively saved, and machining procedures are further improved.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A half-shear stamping die for half-shear stamping of a workpiece (100), comprising:

a first mold (10), wherein the first mold (10) comprises a first base (11) and a core piece (12), the core piece (12) is slidably connected with the first base (11), and the sliding direction is a first direction;

a second mold (20), wherein the second mold (20) comprises a second base (21), one surface of the second base (21) facing the first base (11) is provided with a cavity structure (211), and the cavity structure (211) is arranged corresponding to the core piece (12);

the locating component (30), locating component (30) include first plate body (31) and second plate body (32), first plate body (31) with second plate body (32) enclose into the location chamber, die cavity structure (211) are located in the location chamber, first plate body (31) with the thickness of second plate body (32) with the thickness of work piece (100) equals.

2. The half shear stamping die of claim 1, further comprising a first pushing assembly (40), the first pushing assembly (40) comprising a first driving member (41) and a second driving member (42) disposed sequentially along a second direction, the first driving member (41) driving the core member (12) to slide along the first direction, and the second driving member (42) driving the first seat (11) to slide along the first direction.

3. The half shear stamping die according to claim 2, wherein the first die (10) further comprises a pushing block (13), the pushing block (13) is fixedly connected with the core piece (12), the pushing block (13) can slide along the first direction, the first driving member (41) is provided with a first ramp (411), the first driving member (41) moves along the second direction when the die is assembled, and the first ramp (411) pushes the pushing block (13) to slide along the first direction.

4. A half shear stamping die according to claim 3, characterized in that the core piece (12) is further provided with a limit groove (121), the first seat (11) further comprises a limit clamping groove (111) and a limit block (112), the limit block (112) is slidable along the first direction, the limit groove (121) and the limit clamping groove (111) enclose a limit cavity, and the limit block is in clearance fit with the limit cavity.

5. A half shear stamping die according to claim 3, characterized in that the first die (10) further comprises a pushing part (14), the second driving part (42) further comprises a second ramp (421), the pushing part (14) is far away from the pushing block (13) along the first direction and along the second direction, the second ramp (421) is far away from the first ramp (411) along the first direction and along the second direction, and when the die is closed, the first ramp (411) drives the pushing block (13) to slide along the first direction after the pushing part (14) completes pushing.

6. The half shear stamping die according to claim 4, further comprising a fixed block (50), wherein a first elastic member (51) is arranged between the fixed block (50) and the first base body (11), a second elastic member (52) is arranged between the fixed block (50) and the second base body (21), a third elastic member (53) is arranged between the fixed block (50) and the limiting block (112), and the first elastic member (51), the second elastic member (52) and the third elastic member (53) apply thrust in a direction away from the fixed block (50).

7. The half shear stamping die of claim 6, wherein the second die (20) further comprises a discharge structure (22) disposed within the cavity structure (211), the discharge structure (22) comprising a discharge ram (221), the discharge ram (221) being slidable relative to the cavity structure (211) in a first direction.

8. The half shear stamping die according to claim 7, wherein the unloading structure (22) further comprises a fourth elastic member (222) and a force unloading rod body (223), the force unloading rod body (223) can penetrate through the second seat body (21) to be propped against the fixed block (50), the force unloading rod body (223) and the unloading ejector rod (221) are connected with the fourth elastic member (222) through connecting pieces (224), and one end, away from the connecting pieces (224), of the fourth elastic member (222) is connected with the second seat body (21), and the fourth elastic member (222) is propped against the connecting pieces (224).

9. The half shear stamping die according to claim 6, wherein the first plate body (31) is fixedly connected with the first base body (11), the second plate body (32) is fixedly connected with the second base body (21), and when the die is assembled, the first plate body (31) and the second plate body (32) are in clearance fit with the fixing block (50).

10. The half shear stamping die of any one of claims 1 to 9, further comprising a second pushing assembly (60), the second pushing assembly (60) comprising a third driving member (61), the second die (20) further comprising a pushing portion (23), the third driving member (61) driving the pushing portion (23) to slide in the first direction.

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