CN208712580U - Stamping die for crooked sheet material - Google Patents

Abstract

The utility model discloses the stamping die for crooked sheet material, including the dynamic model and cover half matched, in dynamic model and cover half, one is provided with fixed block, and another one is rotatably connected to briquetting, plate is installed on the mounting surface of fixed block, fixed block also has intilted inclined surface, and inclined surface is connected with mounting surface, and angle between the two is less than 90 °, when dynamic model is moved towards cover half, briquetting can drive the bending section of plate to be bent relative to straight section；Further include for drive briquetting rotate driving portion, and briquetting rotate when, the direction that can drive bending section towards inclined surface continues to be bent so that bending section relative to straight section bending angle less than 90 °.Therefore, the stamping die in the utility model can not only realize that plate is greater than or equal to 90 ° of bending, additionally it is possible to realize bending of the plate less than 90 °, it is i.e. larger to the bending angle range of plate, so that the stamping die scope of application with higher, and punching course is high-efficient, it is at low cost.

Description

Stamping die for crooked sheet material

Technical field

The utility model relates to plate shaping technical fields, in particular to are used for the stamping die of crooked sheet material.

Background technique

Punching press refers to making material application pressure it to generate separation or crisp short cakes with sesame change using the mold being mounted on press machine Shape, so that the pressure processing method of part needed for obtaining, general to realize that stamping die includes bending mould by stamping die, Bending mould can be bent at an angle by smooth plate.

Under normal conditions, which includes punch-pin, cavity plate and ejector etc., wherein cavity plate has straight wall, uses When, punch-pin and ejector push down plate, and 90 ° of bendings are realized under the extruding of cavity plate straight wall.

The cavity plate of the bending mould can only provide plate the extruding force along its direction of motion, the attainable maximum of plate institute Bending angle is 90 °, and therefore, the sheet metal bending angular range which can be realized is smaller, causes its applicability poor.

It is art technology in view of this, how to provide a kind of bending mould for being capable of increasing sheet metal bending angular range Personnel's technical problem urgently to be resolved.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is the stamping die provided for crooked sheet material, including The dynamic model and cover half matched, in the dynamic model and the cover half, one is provided with fixed block, and another one is rotatably connected to pressure Block, plate are installed on the mounting surface of the fixed block, and the fixed block also has an intilted inclined surface, the inclined surface with The mounting surface is connected, and angle between the two is less than 90 °, when the dynamic model is moved towards the cover half, the briquetting energy Enough the bending section of plate is driven to be bent relative to straight section；

Further include the driving portion for driving the briquetting rotation, and when briquetting rotation, bending section court can be driven Continue to be bent to the direction of the inclined surface so that bending section relative to straight section bending angle less than 90 °.

In the utility model, when the dynamic model of the stamping die is moved towards cover half, briquetting can be contacted with plate, the process In, briquetting is to the pressure of plate along the direction of motion of dynamic model, i.e., bending section is maximum relative to the bending angle of straight section during this It is 90 °.Meanwhile the briquetting in the utility model, in addition to being capable of providing along the pressure of the dynamic model direction of motion, which can also court It is rotated to the direction of inclined surface, it is made to be not limited to the direction of motion along dynamic model to the pressure of bending section, additionally it is possible to direction be provided and inclined The pressure on inclined-plane, so as to push bending section to continue to be bent towards inclined surface, i.e., so that bending of the bending section relative to straight section Angle can be less than 90 °.

Therefore, the stamping die in the utility model can not only realize that plate is greater than or equal to 90 ° of bending, additionally it is possible to Realize bending of the plate less than 90 °, i.e., it is larger to the bending angle range of plate, it is applicable in so that the stamping die is with higher Range, and punching course is high-efficient, it is at low cost.

Optionally, the fixed block is set to the cover half, and the briquetting is set to the dynamic model, and including rotation section and pressure Portion, the rotation section can rotate in the arc groove of the dynamic model, and the pressure unit is matched including pressure wall and driving to combine harmoniously, institute Driving portion is stated with the first drive surface, first drive surface can offset with the driving with combining harmoniously, to push the briquetting Rotation, when the briquetting is moved with the dynamic model towards the cover half, the pressure wall can drive bending section to be bent, and described the When one drive surface drives briquetting rotation, the pressure wall can drive bending section to rotate towards the inclined surface.

Optionally, the cover half offers driver slot, and driving voussoir, the driving voussoir tool are provided in the driver slot There is first drive surface, and can be slided in the driver slot, and in sliding process, first drive surface can be with institute It states driving to offset with combining harmoniously, the driving voussoir is the driving portion.

Optionally, first drive surface is inclined-plane, the driving with combining harmoniously as arcwall, and the driving with combine harmoniously with First drive surface is tangent.

Optionally, the dynamic model is removably connected with third voussoir, and the third voussoir has third drive surface, the drive Dynamic voussoir has the second drive surface, and when the dynamic model is moved towards the cover half, the third drive surface can be with described second Drive surface offsets, to push the driving voussoir to slide towards the briquetting；

Second drive surface and the third drive surface are the inclined-plane that can be fitted.

Optionally, the driving voussoir includes the first voussoir and the second voussoir to fit, and first drive surface is set to First voussoir, second drive surface are set to second voussoir.

Optionally, the cover half has guide surface, and the third voussoir has guiding mating surface.

Optionally, the pressure wall successively includes the first straight wall, second upstanding wall and third straight wall, first straight wall and institute It is vertical to state third straight wall, the second upstanding wall is positioned there between and tilts relative to the two；

In punching course, bending section can successively with first straight wall, the second upstanding wall and the third straight wall phase It supports, when the briquetting rotates, the third straight wall can drive bending section to continue to be bent towards the inclined surface.

Optionally, the side of the fixed block has notch, and the inclined surface is the side wall of the notch；Alternatively,

The side wall of the fixed block is tilted relative to its roof and bottom wall, and the side wall of the fixed block forms the inclination Face.

Optionally, the stamping die include relative to the briquetting of the fixed block symmetrical two, the fixed block Both sides all have the inclined surface, and the angle between two inclined surface and the mounting surface is equal or unequal.

It optionally, further include ejector, the ejector is connected with nitrogen gas spring far from one end of the fixed block.

Detailed description of the invention

Fig. 1 provides the cross-sectional view of stamping die in a specific embodiment by the utility model；

Fig. 2 is the cross-sectional view of dynamic model in Fig. 1；

Fig. 3 is the cross-sectional view of cover half in Fig. 1；

Fig. 4 is the structural schematic diagram of briquetting in Fig. 1；

Fig. 5 is structural schematic diagram of the stamping die in the first working condition in Fig. 1；

Fig. 6 is structural schematic diagram of the stamping die in the second working condition in Fig. 1；

Fig. 7 is structural schematic diagram of the stamping die in third working condition in Fig. 1；

Fig. 8 is structural schematic diagram of the stamping die in four working conditions in Fig. 1；

Fig. 9 is structural schematic diagram of the stamping die in five working conditions in Fig. 1；

Figure 10 is the partial structural diagram of Fig. 9.

In Fig. 1-10:

1 dynamic model, 11 first bases, 12 nitrogen gas springs, 13 ejectors, 14 third voussoirs, 141 third drive surfaces, 142 guiding Mating surface, 15 first mounting bases, 16 briquettings, 161 rotation sections, 162 first straight walls, 163 second upstanding walls, 164 third straight walls, 165 Driving, which is matched, combines harmoniously；

2 cover half, 21 second bases, 22 driver slots, 221 guide surfaces, 23 first voussoirs, 231 first drive surfaces, 24 second wedges Block, 241 second drive surfaces, 25 fixed blocks, 251 notches, 252 inclined surface, 26 backing plates；

3 plates, 31 straight sections, 32 bending sections；

α predetermined angular.

Specific embodiment

In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have The utility model is described in further detail for body embodiment.

In the description of the present application unless specifically defined or limited otherwise, term " first ", " second " are only used for describing Purpose, be not understood to indicate or imply relative importance；Term " multiple " refers to two or more；Unless otherwise Regulation or explanation, term " connection ", " fixation " etc. shall be understood in a broad sense, can also be with for example, " connection " may be a fixed connection It is to be detachably connected, or be integrally connected；It can be directly connected, it can also be indirectly connected through an intermediary.For ability For the those of ordinary skill in domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

In the description of this specification, it is to be understood that "upper", "lower" described in the embodiment of the present application, "left", "right" The equal nouns of locality are described with angle shown in the drawings, should not be construed as the restriction to the embodiment of the present application.In addition, In context, it is also necessary to which understanding can not only when mentioning an element and being connected to another element "upper" or "lower" It is enough connected directly between another element "upper" or "lower", another element "upper" can also be indirectly coupled to by intermediary element Or "lower".

Please refer to attached drawing 1-10, wherein Fig. 1 provides stamping die in a specific embodiment by the utility model Cross-sectional view；Fig. 2 is the cross-sectional view of dynamic model in Fig. 1；Fig. 3 is the cross-sectional view of cover half in Fig. 1；Fig. 4 is the structural representation of briquetting in Fig. 1 Figure；Fig. 5 is structural schematic diagram of the stamping die in the first working condition in Fig. 1；Fig. 6 is stamping die in Fig. 1 the Structural schematic diagram when two working conditions；Fig. 7 is structural schematic diagram of the stamping die in third working condition in Fig. 1；Fig. 8 For structural schematic diagram of the stamping die in Fig. 1 in four working conditions；Fig. 9 is that the stamping die in Fig. 1 works the 5th Structural schematic diagram when state；Figure 10 is the partial structural diagram of Fig. 9.

In a specific embodiment, the utility model provides a kind of stamping die for crooked sheet material, such as Fig. 1 institute Showing, which includes the dynamic model 1 and cover half 2 matched, wherein cover half 2 is fixed, and dynamic model 1 is connected to the formed punch of press machine, It can be moved along the direction close to or far from cover half 2, press to treat punching press plate 3, make its bending.Meanwhile such as Fig. 3 institute Show, plate 3 after bending has straight section 31 and relative to the curved bending section 32 of straight section 31, it should be noted that the bending section 32 itself be not curved curved surface or folding face shape, but the bending section 32 is bent relative to straight section 31, i.e., itself may It is still slab construction.

Specifically, in dynamic model 1 and cover half 2, one is provided with fixed block 25, and another one is rotatably connected to briquetting 16, wherein Plate 3 is installed on the mounting surface of fixed block 25, and the bending in order to realize plate 3, and plate 3 answers some (bending after installing Bending section 32 afterwards) stretch out mounting surface.The fixed block 25 also has intilted inclined surface 252, inclined surface 252 and mounting surface It is connected, and angle between the two is less than 90 °.

Wherein, slope inwardly and refer to that the inclined surface 252 is tilted towards the direction of 25 inside center of fixed block.Meanwhile inclining Inclined-plane 252 is not limited only to as plane, can also be curved surface, or the bending side formed by several planes, when inclined surface 252 is song When face, the angle between the section and mounting surface of the inclined surface 252 is referred to the angle of mounting surface.In addition, inclined surface 252 There are two angles between mounting surface, and sum of the two is 360 °, the folder between inclined surface 252 referred to herein and mounting surface Angle refers in two angles lesser one.

When dynamic model 1 is moved towards cover half 2, briquetting 16 can be contacted with plate 3, to press to it, so that bending section 32 Relative to straight section 31 be bent, as shown in Fig. 2, straight section 31 and its be adapted with the mounting surface of fixed block 25, bending section 32 be along consolidate The part of 25 mounting surface of fixed block is stretched out in the side for determining block 25.Meanwhile the stamping die further includes for driving briquetting 16 to rotate Driving portion, be in rotary state briquetting 16 under the action of, bending section 32 can towards the direction of inclined surface 252 continue it is curved Song so that bending section 32 relative to straight section 31 bending angle less than 90 °.

In the utility model, during the dynamic model 2 of the stamping die is moved towards cover half 1, briquetting 16 can be with plate 3 Contact so that its bending section 32 is bent relative to straight section 31, should during, briquetting 16 is to the pressure of plate 3 along the movement of dynamic model 2 Direction, i.e., bending section 32 is up to 90 ° relative to the bending angle of straight section 31 during this.Meanwhile the pressure in the utility model In addition to being capable of providing along the pressure of 2 direction of motion of dynamic model, which can also rotate block 16, and in its rotation process with bending Section 32 contacts, it is made to be not limited to the direction of motion along dynamic model 2 to the pressure of bending section 32, when it is towards the direction of inclined surface 252 When rotation, bending section 32 can be pushed to continue to be bent towards inclined surface 252, bending section 32 can be made relative to straight section 31 Bending angle can be less than 90 °.

Therefore, the stamping die in the utility model can be realized bending of the plate 3 less than 90 °, make it to the curved of plate 3 Bent angular range is larger, the stamping die scope of application with higher, and punching course is high-efficient, at low cost.

Specifically, as shown in Fig. 2, the briquetting 16 includes rotation section 161 and pressure unit, in one embodiment, the briquetting 16 are rotatablely connected with dynamic model 1, and fixed block 25 is fixed on cover half 2, and plate 3 is fixed on the surface of fixed block 25, therefore, the briquetting 16 move with it during dynamic model 1 is moved towards cover half 2, to apply the pressure of the direction of motion to plate 3, meanwhile, the pressure Block 16 can also be rotated relative to dynamic model 1, and can apply the pressure in other directions in its rotation process to bending section 32, so that Bending section 32 continues to rotate.

Certainly, in another embodiment, briquetting 16 can also be rotatablely connected with cover half 2, and fixed block 25 may be disposed at dynamic model 1, And moved with dynamic model 1 towards cover half 2, so that briquetting 16 can apply pressure to plate 3.

More specifically, as shown in Fig. 2, the first base 11 of dynamic model 1 is provided with the first mounting base 15, first mounting base 15 Arc groove is offered, as shown in figure 4, the rotation section 161 is chondritic, can be rotated in arc groove, to realize briquetting 16 rotation.Meanwhile pressure unit includes pressure wall, in punching course, which contacts with bending section 32 always, successively wraps Include the first straight wall 162, second upstanding wall 163 and third straight wall 164, wherein above three straight wall can be planar structure, and briquetting Before 16 rotations, the first straight wall 162 is parallel with plate 3, and third straight wall 164 is vertical with the straight section 31 of plate 3, i.e. the first straight wall 162 Vertical with third straight wall 164, second upstanding wall 163 is positioned there between and tilts relative to the two.

Therefore, during which moves with dynamic model 1 towards cover half 2, the first straight wall 162 can apply plate 3 Pressure, makes its bending, and after bending, inclined second upstanding wall 163 can press to the bending section 32, continues to bending (bending angle Degree is less than 90 °), when bending angle reaches 90 °, which can fit with third straight wall 164, at this point, due to curved Tune 32 is parallel with third straight wall 164, and therefore, third straight wall 164 does not press to bending section 32.Therefore, briquetting 16 is with 1 court of dynamic model During moving to cover half 2, it can be realized 90 ° of bendings of plate 3.

Further, briquetting 16 when being rotated by, can apply pressure to bending section 32, make its direction in driving portion The direction of notch 251 moves, to realize the bending less than 90 °.

Therefore, in the present embodiment, the briquetting 16 of the structure can be realized the wide-angle bending of plate 3, and in bending process Each straight wall of briquetting 16 is bonded with plate 3 always, reliability with higher.

Further, as shown in Figure 2 and Figure 4, pressure unit further includes driving with combining harmoniously 165, and correspondingly, driving portion has First drive surface 231, when the first drive surface 231 and driving with combine harmoniously 165 offset when, which can pass through the first drive surface 231 push driving with combining harmoniously 165, to make it rotate around the center of rotation of rotation section 161 and dynamic model 1, and its rotation direction is Bending section 32 can be made to be bent towards the direction of notch 251.

Wherein, the first drive surface 231 of driving portion does not pass through rotation with 165 thrust of combining harmoniously to being applied to the driving of briquetting 16 The center of rotation in portion 161, so that the thrust is capable of forming torque, driving briquetting 16 is rotated.

In addition, in embodiment as shown in figures 5-9, after the bending section 32 of plate 3 is relative to 31 90-degree bent of straight section, One drive surface 231 165 is contacted with driving with combining harmoniously, and pushes briquetting 16 to rotate, it will be understood that the first drive surface 231 can also be curved It just 165 offsets with driving with combining harmoniously when the bending angle of tune 32 is less than 90 °, to push briquetting 16 to rotate, to make bending section 32 continue to be bent from bending angle less than 90 °, until being greater than 90 °, in this case, briquetting 16 not necessarily includes above structure Three straight walls as long as including any wall surface to offset with bending section 32, and guarantee that the wall surface is always in 16 rotation process of briquetting It offsets with bending section 32.

Specifically, it as shown in figure 3, the second base 21 of above-mentioned cover half 2 offers driver slot 22, is provided in driver slot 22 Voussoir is driven, which has above-mentioned first drive surface 231, and the driving voussoir can slide in driver slot 22, and In sliding process, the first drive surface 231 165 can offset with driving with combining harmoniously, and therefore, which is above-mentioned briquetting 16 Rotate driving portion.

Meanwhile as shown in Fig. 2, dynamic model 1 is removably connected with third voussoir 14, and the third voussoir 14 drives with third Face 141, above-mentioned driving voussoir have the second drive surface 241, and dynamic model 1 towards cover half 2 move during, third voussoir 14 with Close to driving voussoir, until third drive surface 141 offsets with the second drive surface 241, at this point, third voussoir 14 can continue to Dynamic model 1 moves, so that third drive surface 141 pushes the second drive surface 241, so that driving voussoir direction in driver slot 22 The direction of notch 251 is slided, and 165 is offseted until the driving of its first drive surface 231 and briquetting 16 matches to combine harmoniously, to push briquetting 16 rotations.Therefore, driving voussoir, third voussoir 14 and dynamic model 1 is the rotate driving portion of briquetting 16.

Therefore, in the utility model, driving force that briquetting 16 rotates is from dynamic model 1 towards in 2 motion process of cover half the Three 14 pairs of voussoirs drive the thrust of voussoir, therefore, the motion control of 16 rotational motion of briquetting started or stopped by dynamic model 1, Without increasing other power sources for briquetting 16, so that the punching die structure is simple, and has and save the energy and cost The advantages of.

Simultaneously as third voussoir 14 is detachably connected with dynamic model 1, therefore, the third voussoir 14 and driving can be changed Initial distance between voussoir to change the opportunity that the two is in contact, and then changes the opportunity that briquetting 16 rotates, convenient for adjusting The bending angle of plate 3 so that the stamping die can be realized it is curved at any angle between (0~predetermined angle) to plate 3 Song can realize the step-less adjustment of bending angle.

Further, as shown in figure 3, cover half 2 has the guide surface 221 extended along 1 direction of motion of dynamic model, meanwhile, such as Fig. 2 Shown, third voussoir 14 has the guiding mating surface 142 extended along its direction of motion.

Dynamic model 1 when the guide surface 221 and guiding mating surface 142 offset, can be oriented to towards in 2 motion process of cover half Dynamic model 1 is moved towards cover half 2.

Specifically, above-mentioned second drive surface 241 and third drive surface 141 are the inclined-plane to fit, when two inclined-planes are bonded, energy Horizontal separation is provided, enough to realize driving voussoir along the sliding of driver slot 22.Meanwhile above-mentioned first drive surface 231 is inclined-plane, is driven Dynamic and the driving of the arc is 165 tangent with the first drive surface 231 with combining harmoniously with combining harmoniously 165 as arcwall, so that the driving It 165 can be under the driving of the first drive surface 231 along its surface pivots with combining harmoniously.

More specifically, as shown in figure 3, above-mentioned driving voussoir includes the first voussoir 23 and the second voussoir 24 to fit, In, the first drive surface 231 is set to the first voussoir 23, and the second drive surface 241 is set to the second voussoir 24.

In the present embodiment, which is split type structure, in the stamping die course of work, above-mentioned first drive surface 231 is different from the degree of wear of the second drive surface 241, therefore, by the way that two drive surfaces are respectively arranged at the first of separate structure Voussoir 23 and the second voussoir 24 only replace the voussoir of the abrasion when one of them abrasion is not available, to improve zero The utilization rate of part saves cost.Meanwhile it being set to same voussoir compared to two drive surfaces, when the two is respectively arranged at two voussoirs So that the molding of voussoir is simpler.

Meanwhile as shown in figure 3, be provided with backing plate 26 between 22 bottom of the driving voussoir and driver slot, the backing plate 26 and Two pedestals 21 are bolted, and drive voussoir can be in the upper surface slide of the backing plate 26.

In the above various embodiments, as shown in figure 3, notch 251 has inclined surface 252, the inclined surface 252 and fixed block 25 Plate mounting surface is connected, and is in therebetween predetermined angle, in 32 bending process of bending section of plate 3, when itself and the inclined surface 252 when offseting, and can not continue to be bent, therefore, which can limit the maximum bend angle of bending section 32.

It can be realized between (0~α) of plate 3 at any angle based on this by the stamping die in the utility model Bending, can realize step-less adjustment.Meanwhile by changing in fixed block 25 between the inclined surface 252 and plate mounting surface Angle can change above-mentioned predetermined angle.

In addition, it is necessary to which explanation, the side of above-mentioned fixed block 25 not necessarily open up notch 251, may also be configured to: should Fixed block 25 is gradually reduced along the direction far from plate mounting surface, sectional area, that is, forms the structure of similar cone, at this point, this is solid The side wall for determining block 25 is above-mentioned inclined surface 252.But in the present embodiment, be arranged notch 252 after so that the fixed block 25 with The section of 2 fixed part of cover half is still larger, to improve the connection reliability of the two, and improves fixed block 25 in punching course Service life.

On the other hand, as shown in figure 3, in the cover half 2 of the stamping die, two driver slots including being located at 25 two sides of fixed block 22 and two drive voussoir, and the both sides of the fixed block 25 offer above-mentioned notch 251, that is, all have and install relative to plate The inclined inclined surface 252 in face, and the angle between two inclined surface and plate mounting surface can be identical, it can also be different, and the stamping die The bending angle for having the bending section 32 of 3 left and right ends of plate after bending can be different.

Meanwhile as shown in Fig. 2, the dynamic model 1 be connected with the two corresponding two thirds voussoirs 14 of driving voussoirs, be also rotatablely connected There are two briquettings 16.And the dynamic model 1 position corresponding with above-mentioned fixed block 25 is provided with ejector 13, and when punching press, the ejector 13 For withstanding plate 3, and two briquettings 16 are located at the left and right ends of the ejector 13.

More specifically, as shown in Fig. 2, the ejector 13 is provided with nitrogen gas spring 12, punching press far from one end of fixed block 25 In the process, which is capable of providing enough elastic force.

In conclusion 3 bending process of plate of the stamping die in the utility model is as follows:

As shown in figure 5, dynamic model 1 is towards the direction (moving downward shown in Fig. 5) of cover half 2, when its move to ejector 13 with When contacting set on the plate 3 of fixed block 25, ejector 13 being capable of compressed nitrogen spring 21.

It is contacted as shown in fig. 6, dynamic model 2 moves downwardly to briquetting 16 with plate 3, and is pressed down against plate in its motion process 3, so that its bending section 32 is bent relative to straight section 31, during being somebody's turn to do, the first straight wall 162 of briquetting 16 offsets with plate 3 first, After bending section 32 is bent, second upstanding wall 163 offsets with bending section 32, curved between bending section 32 (180 °~90 °) to realize It is bent.Meanwhile the guiding mating surface 142 of third voussoir 14 can be in contact with the guide surface 221 of cover half 2, realize guiding.The process In, enable to the bending angle of bending section 32 to be gradually reduced.During being somebody's turn to do, nitrogen gas spring 12 continues to bounce back.

As shown in fig. 7, when dynamic model 1 continues to move downward, when so that the bending angle of bending section 32 reaching 90 °, briquetting 16 Third straight wall 164 be in contact with bending section 32, since the two is parallel, third straight wall 164 can not continue crooked sheet material 3. Meanwhile the third driving mating surface 141 of third voussoir 14 is in contact with the second drive surface 241 of the second voussoir 24, and it is downwards The second voussoir 24 can be driven to move when movement towards fixed block 25, and the second voussoir 24 can drive the first voussoir 23 towards admittedly Determine the movement of block 25.

As shown in figure 8, during the first voussoir 23 moves under the driving of the second voussoir 24 towards fixed block 25, the The driving of one drive surface 231 and briquetting 16 165 offsets with combining harmoniously.

As shown in Figure 9 and Figure 10, when the first voussoir 23 continues to move towards fixed block 25, which can Briquetting 16 is driven to rotate, in the present embodiment, briquetting 16 is rotated counterclockwise, at this point, during its third straight wall 164 rotates counterclockwise It can continue to press to bending section 32, make to be bent in its notch 251 towards fixed block 25, at this point, the bending angle of bending section 32 Degree is (α, 90 °).

The stamping die provided by the utility model for crooked sheet material is described in detail above.It answers herein The principles of the present invention and embodiment are expounded with specific case, the explanation of above example is only intended to sides Assistant solves the method and its core concept of the utility model.It should be pointed out that for those skilled in the art, Without departing from the principle of this utility model, several improvements and modifications can be made to this utility model, these improvement It is also fallen into the protection scope of the utility model claims with modification.

Claims (11)

1. the stamping die of crooked sheet material is used for, including the dynamic model (1) and cover half (2) matched, which is characterized in that the dynamic model (1) and in the cover half (2), one is provided with fixed block (25), and another one is rotatably connected to briquetting (16), plate (3) installation Mounting surface in the fixed block (25), the fixed block (25) also have intilted inclined surface (252), the inclined surface (252) it is connected with the mounting surface, and angle between the two, less than 90 °, the dynamic model (1) moves towards the cover half (2) When, the briquetting (16) can drive the bending section (32) of plate (3) to be bent relative to straight section (31)；

Further include the driving portion for driving the briquetting (16) to rotate, and when the briquetting (16) rotation, bending can be driven The direction of section (32) towards the inclined surface (252) continues to be bent, so that bending angle of the bending section (32) relative to straight section (31) Degree is less than 90 °.

2. stamping die according to claim 1, which is characterized in that the fixed block (25) is set to the cover half (2), institute Briquetting (16) are stated set on the dynamic model (1), and including rotation section (161) and pressure unit, the rotation section (161) can be described Rotation in the arc groove of dynamic model (1), the pressure unit include pressure wall and driving with combining harmoniously (165), and the driving portion has the One drive surface (231), first drive surface (231) can with it is described driving with combine harmoniously (165) offset, to push the briquetting (16) it rotates, when the briquetting (16) moves with the dynamic model (1) towards the cover half (2), the pressure wall can drive curved Tune (32) bending, when first drive surface (231) drives the briquetting (16) rotation, the pressure wall can drive bending Section (32) is rotated towards the inclined surface (252).

3. stamping die according to claim 2, which is characterized in that the cover half (2) offers driver slot (22), described Driving voussoir is provided in driver slot (22), the driving voussoir has first drive surface (231), and can be in the drive Sliding in dynamic slot (22), and in sliding process, first drive surface (231) can with the driving with combine harmoniously (165) offset, The driving voussoir is the driving portion.

4. stamping die according to claim 3, which is characterized in that first drive surface (231) is inclined-plane, the drive It is dynamic with combine harmoniously (165) be arcwall, and the driving is with combining harmoniously (165) and first drive surface (231) is tangent.

5. stamping die according to claim 3, which is characterized in that the dynamic model (1) is removably connected with third voussoir (14), the third voussoir (14) has third drive surface (141), and the driving voussoir has the second drive surface (241), described When dynamic model (1) is moved towards the cover half (2), the third drive surface (141) can be with the second drive surface (241) phase It supports, to push the driving voussoir to slide towards the briquetting (16)；

Second drive surface (241) and the third drive surface (141) are the inclined-plane that can be fitted.

6. stamping die described in claim 5, which is characterized in that the driving voussoir includes the first voussoir to fit (23) and the second voussoir (24), first drive surface (231) are set to first voussoir (23), second drive surface (241) it is set to second voussoir (24).

7. stamping die according to claim 5, which is characterized in that the cover half (2) has guide surface (221), described Third voussoir (14) has guiding mating surface (142).

8. the stamping die according to any one of claim 2-7, which is characterized in that the pressure wall successively includes first Straight wall (162), second upstanding wall (163) and third straight wall (164), first straight wall (162) and the third straight wall (164) are hung down Directly, the second upstanding wall (163) is positioned there between and tilts relative to the two；

In punching course, bending section (32) can successively with first straight wall (162), the second upstanding wall (163) and described Third straight wall (164) offsets, and when the briquetting (16) rotates, the third straight wall (164) can drive bending section (32) direction The inclined surface (252) continues to be bent.

9. stamping die described in any one of -7 according to claim 1, which is characterized in that the side of the fixed block (25) has Jagged (251), the inclined surface (252) are the side wall of the notch (251)；Alternatively,

The side wall of the fixed block (25) is tilted relative to its roof and bottom wall, and the side wall of the fixed block (25) forms described Inclined surface (252).

10. stamping die described in any one of -7 according to claim 1, which is characterized in that the stamping die includes opposite In the briquetting (16) of the fixed block (25) symmetrical two, the both sides of the fixed block (25) all have the inclined surface (252), the angle and between two inclined surface (252) and the mounting surface is equal or unequal.

11. stamping die described in any one of -7 according to claim 1, which is characterized in that it further include ejector (13), it is described Ejector (13) is connected with nitrogen gas spring (12) far from the one end of the fixed block (25).