CN210497988U - Mould structure for bending and forming negative angle part - Google Patents
Mould structure for bending and forming negative angle part Download PDFInfo
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- CN210497988U CN210497988U CN201921190641.2U CN201921190641U CN210497988U CN 210497988 U CN210497988 U CN 210497988U CN 201921190641 U CN201921190641 U CN 201921190641U CN 210497988 U CN210497988 U CN 210497988U
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Abstract
The utility model discloses a mould structure for bending and forming negative angle parts, which comprises an upper mould base and a lower mould base, and further comprises an upper clamp plate, a pressure plate, a stripper plate and a lower mould plate, wherein the upper clamp plate is arranged below the upper mould base, the pressure plate is connected with the upper clamp plate through a limiting bolt, the stripper plate is arranged below the pressure plate, a pressure gap is reserved between the pressure plate and the stripper plate, a stamping mechanism for stamping the parts is also arranged on the upper mould base, and a sliding guide mechanism matched with the stamping structure for use is also arranged on the upper mould base; the lower template is arranged above the lower die base, and the upper die base is also provided with a floating mechanism for floating and unloading the punched parts; the utility model discloses a design shaping punching pin and slider mechanism come the shaping part, and this structure can improve stamping efficiency, and simple structure is convenient for make, and the cost is lower.
Description
Technical Field
The utility model relates to a forming die technical field of bending especially relates to a "negative angle" part fashioned mould structure of bending.
Background
At present, the bending of a part to be processed is 'negative angle' forming, the existing process method is that a forming punch and a forming insert are subjected to punch forming, and the part after punch forming is bent to be 'inner buckle', so that the part can interfere with the forming insert when stripping, and stripping is unsmooth, so that the production efficiency is greatly reduced, the bending failure rate is caused to occur occasionally, the normal production is influenced, meanwhile, the operation difficulty of an operator is increased, and the part subjected to bending forming needs to be taken out under the action of external force.
SUMMERY OF THE UTILITY MODEL
To the problem that exists, the utility model aims at providing a "negative angle" part fashioned mould structure of bending, comes the shaping part through design shaping punching pin and slider mechanism, and this structure can improve punching press efficiency, simple structure, and the manufacturing of being convenient for, and the cost is lower.
In order to achieve the above object, the utility model adopts the following technical scheme:
a die structure for bending and forming a negative-angle part comprises an upper die base and a lower die base, and further comprises an upper clamping plate, a material pressing plate, a discharging plate and a lower die plate, wherein the upper clamping plate is arranged below the upper die base, the material pressing plate is connected with the upper clamping plate through a limiting bolt, the discharging plate is arranged below the material pressing plate, a material pressing gap is reserved between the material pressing plate and the discharging plate, a punching mechanism for punching the part is further arranged on the upper die base, and a sliding guide mechanism matched with the punching mechanism for use is further arranged on the upper die base; the lower template is arranged above the lower die base, and the upper die base is also provided with a floating mechanism for floating and discharging the punched parts.
Preferably, the stamping mechanism sequentially penetrates through the upper die base, the upper clamping plate, the material pressing plate and the material discharging plate, the stamping mechanism is a forming punch, and a molded surface corresponding to a negative angle of the part is machined on the bottom end surface of the forming punch.
Preferably, the sliding guide mechanism sequentially penetrates through the upper die base, the upper clamping plate, the material pressing plate and the material discharging plate, and the sliding guide mechanism comprises a material pushing spring, a push rod arranged at the lower end of the material pushing spring, a base arranged at the lower end of the push rod and a sliding block arranged at the lower end of the base.
Preferably, the buoyancy mechanism penetrates through the upper die base from bottom to top in sequence, and the buoyancy mechanism comprises an ejection spring, an ejector rod arranged at the upper end of the ejection spring and a buoyancy block arranged at the upper end of the ejector rod.
Preferably, the side surface of the buoyancy lifting block is provided with a pressing block groove with a certain depth, and the pressing block is locked and fixed on the lower template through a guide bolt.
Preferably, the width of the pressing block groove is slightly larger than the transverse width of the pressing block, so that the floating block is not influenced by the guide bolt when moving up and down, and meanwhile, the side part of the guide pressing block can also play a role in guiding and limiting the floating block.
Preferably, the depth of the briquetting groove is 1/2-2/3 of the thickness of the buoyancy lift block.
Preferably, a guide pillar is arranged between the upper die holder and the lower die holder, the lower end of the guide pillar is fixed on the lower die holder through clearance fit, and a guide sleeve tightly matched with the guide pillar is arranged on the upper die holder.
Preferably, a material pressing spring is further arranged on the upper die base and penetrates through the upper die base, the upper clamping plate and the material pressing plate.
Preferably, the upper die base is provided with a countersunk hole, the limiting bolt is hung in the countersunk hole, the lower end of the limiting bolt penetrates through the upper clamping plate and the pressure plate and extends to the discharging plate, and the limiting bolt is fixedly connected with the upper clamping plate, the pressure plate and the discharging plate through threads.
The utility model has the advantages that: compared with the prior art, the improvement of the utility model is that the die structure of the utility model adopts a guide post with guiding function arranged between an upper die base and a lower die base, and a forming punch, a material pressing spring and a limit bolt are arranged below the upper die base; a slide block mechanism is arranged on the discharging plate; set up buoyancy lift piece, ejector pin and liftout spring on the lower die plate, the compressive force through the liftout spring promotes the ejector pin and drives buoyancy lift piece with part buoyancy lift to a take the altitude, then drive the mould on the mould along the perpendicular punching press downwards of guide pillar under the effect of mesa on the punch press to the shaping, the utility model discloses a mould simple structure, make convenient to use, the cost is lower, can improve production efficiency.
Drawings
Fig. 1 is a schematic structural view of the slider mechanism in a free state before the die is bent and molded and in an open/close state of the die;
FIG. 2 is a schematic structural view showing the positioning function of the mold stripper and the lower mold plate in contact with the product when the mold of the present invention is bent and formed;
fig. 3 is a schematic structural view of the slider mechanism during operation when the die is closed during bending and molding of the die of the present invention;
FIG. 4 is a schematic structural view of the die after bending and forming of the die of the present invention, when the parts are in a stripping state;
FIG. 5 is a schematic structural view of the levitation mechanism of the present invention;
fig. 6 is a schematic view of the connection structure relationship between the slider and the base according to the present invention.
The forming die comprises a die holder 1, an upper die holder 2, a pressing plate 3, a discharging plate 4, a lower die plate 5, a lower die holder 6, a guide post 7, a pressing spring 8, a limiting bolt 9, a forming punch 10, a pushing spring 11, a push rod 12, a base 13, a guide groove 131, a hanging platform cavity 132, a sliding block 14, a hanging platform 141, a floating block 15, a pressing block groove 151, a pressing block groove 16, a push rod 17, a pressing spring 18, a spacing groove 19, a guide bolt 19 and a pressing block 20.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.
Referring to the attached drawings 1-6, the die structure for bending and forming a negative-angle part comprises an upper die base 1, a lower die base 6, an upper clamping plate 2, a pressure plate 3, a discharging plate 4 and a lower die plate 5, wherein the upper clamping plate 2 is arranged below the upper die base 1, the pressure plate 3 is connected with the upper clamping plate 2 through a limiting bolt 9, the discharging plate 4 is arranged below the pressure plate 3, a pressure gap is reserved between the pressure plate 3 and the discharging plate 4, a punching mechanism for punching the part is further arranged on the upper die base 1, and a sliding guide mechanism matched with the punching mechanism is further arranged on the upper die base 1; the lower template 5 is arranged above the lower die base 6, and the upper die base 1 is also provided with a floating mechanism for floating and discharging the punched parts.
The utility model discloses a further improvement lies in, punching press mechanism runs through in proper order upper die base 1, punch holder 2, pressure flitch 3 and stripper 4, just punching press mechanism is a shaping punching pin 10, and the processing of shaping punching pin 10 bottom face has the profile corresponding with part "negative angle".
The utility model discloses a further improvement lies in, slide guiding mechanism runs through in proper order upper die base 1, punch holder 2, pressure flitch 3 and stripper 4, just slide guiding mechanism is including pushing away material spring 11, locating push rod 12 that pushes away material spring 11 lower extreme, locating base 13 of push rod 12 lower extreme and locating slider 14 of base 13 lower extreme, and slider 14's width just in time is that the interval between two parts that need carry out the negative angle and bend with the part equals.
In particular, a slider hanging table 141 is arranged on the slider 14; the slide block is arranged into a molded surface corresponding to the negative angle of a part, the appearance of the slide block is tapered and is provided with a hanging table 141, a guide groove 131 corresponding to the appearance of the slide block 14 is arranged on the base 13, a hanging table cavity 132 for limiting the stroke of the slide block 14 is also arranged in the base 13 and is used for limiting the downward movement distance of the slide block 14, and the slide block 14 is fixed on the base 13 through clearance fit.
The bending of the utility model is the bending purpose achieved by combining the forming punch 10 and the slide block 14, and is not completed by simply stamping the forming punch 10 like the prior art, the forming punch 10 of the utility model punches from the front of the part, the slide block 14 gives the punch a supporting force from the back of the part, the contact surface of the slide block 14 and the part is provided with a profile matched with the negative angle to be bent of the part, the forming punch 10 and the slide block 14 act simultaneously during the stamping, thereby not only avoiding the problem of excessive bending of the single forming punch 10, but also ensuring the bending precision, the slide block 14 also has the effect of clamping and positioning the part, the width of the slide block 14 is the same as the distance between two bending parts of the negative angle part, when the slide reaches the position of the bending part, the clamping part is just opened, so that the part does not have slight position deviation in the horizontal direction, meanwhile, through the combination of the sliding block 14 and the floating block 15, the upper position and the lower position of the part can be pressed during bending, so that the position of the part is fixed from the upper side, the lower side, the left side and the right side, and the bending forming precision is improved in an auxiliary mode.
The utility model discloses a further improvement lies in, the buoyancy lift mechanism upwards runs through from down in proper order upper die base 1, just the buoyancy lift mechanism includes liftout spring 17, locates ejector pin 16 of liftout spring 17 upper end and locates buoyancy lift block 15 of ejector pin 16 upper end.
In order to accurately control the lifting of the floating block, not only parts on the floating block can be quickly pushed out, but also the lifting position of the floating block is prevented from being too high, a pressing block groove 151 with a certain depth is arranged on the side surface of the floating block 151, a pressing block 20 is locked and fixed on the lower template 5 through a guide bolt 19, the width of the pressing block groove 151 is slightly larger than the transverse width of the pressing block 20, so that the floating block 15 is not influenced by the guide bolt 19 when moving up and down, simultaneously, the pressing block 20 can also play a role in guiding and limiting the floating block 15, the depth of the pressing block groove 151 is 1/2-2/3 of the thickness of the floating block, the pressing block groove 151 does not penetrate through the floating block 15, the pressing block groove 151 not only guides the lifting of the floating block 15 but also accurately controls the lifting position of the floating block 15, and the floating block 15 can not lift any more after the parts are unloaded by the floating block 15, prevent that the free excessive and influence its result of use of lift piece 15 end that rises, briquetting 20's design not only can fix lower bolster 5 simultaneously, utilizes its side and briquetting groove 151's coupling part moreover, can carry out fine direction to the rising of lift piece 15, can dock with briquetting groove 151 bottom structure with the help of briquetting 20 simultaneously, accurate contact and fix a position the rising of lift piece 15.
In order to improve the consistency of the upper and lower positions of the upper die holder 1 and the lower die holder 6 in the stamping process, a guide pillar 7 is arranged between the upper die holder 1 and the lower die holder 6, the lower end of the guide pillar 7 is fixed on the lower die holder 6 through clearance fit, and a guide sleeve tightly matched with the guide pillar 7 is arranged on the upper die holder 1.
Press flitch 3 to have fine compressibility in order to make to can accomplish automatically after the punching press that the punch press breaks away from the action of punch holder 2 and pressing flitch 3, the utility model discloses in still be equipped with on the upper die base 1 and press material spring 8, press material spring 8 to run through upper die base 1, punch holder 2 and press flitch 3 to set up.
In order to make upper die base 1, punch holder 2, press flitch 3 and stripper 4 can an organic whole connection, can reach the limiting displacement to pressing flitch 3 simultaneously again, the utility model discloses in set up the counter sink on the upper die base 1, spacing bolt 9 is hung and is established in the counter sink, and its lower extreme passes punch holder 2, press flitch 3 and extend to on the stripper 4 to with punch holder 2, press flitch 3, 4 screw thread fixed connection of stripper.
In order to ensure that the stamping process of the forming punch is safer and protect the forming punch, a position avoiding groove is arranged and is arranged on the lower template 5, and the position avoiding groove is particularly used as a position avoiding for the forming punch; when the mold is in a closed state, the part is molded, and the length of the molding punch exceeds the part, so that a clearance position must be dug at a position corresponding to the lower template below the molding punch, otherwise, the molding punch collides with the lower template 5.
The utility model has the specific connection relationship that
This mould structure, including from top to bottom connect gradually have: the punching machine comprises an upper die base 1, an upper clamping plate 2, a pressure plate 3, a discharging plate 4, a lower die plate 5 and a lower die base 6, wherein a guide pillar 7 with a guiding function is arranged between the upper die base 1 and the lower die base 6, the lower end of the guide pillar 7 is fixed on the lower die base 6 through clearance fit, the upper die base 1 is provided with a guide sleeve which is in close fit with the guide pillar 7, and when an upper table surface of a punching machine drives an upper die to move, the guide sleeve of the upper die base 1 vertically moves along the guide pillar 7 to play a; a material pressing spring 8 and a limiting bolt 9 are further arranged below the upper die base 1, the material pressing spring 8 mainly acts on the material pressing plate 3, when the material pressing plate 3 moves up and down on the upper table surface of the punch press, the material pressing plate 3 completes reciprocating motion of material pressing and discharging through the compression force of the material pressing spring 8, the limiting bolt 9 is hung on the upper die base 1 and is connected to the discharging plate 4 through threads, and the limiting effect is achieved when the material pressing spring 8 drives the material pressing plate 3 to move downwards; the upper splint 2 is provided with a forming punch 10, the forming punch 10 is arranged into a molded surface corresponding to the negative angle of the part, the front surface of the forming punch 10 is provided with threads, a counter bore corresponding to the threads of the forming punch 10 is arranged above the upper die holder 1, the forming punch 10 is fixed through bolts, a base 13 and a slide block 14 are arranged on the discharging plate 4, the base 13 is fixed on the discharging plate 4 through threaded connection, the slide block 14 is arranged into a molded surface corresponding to the negative angle of a part, the appearance is tapered and provided with a hanging table, a guide groove corresponding to the appearance of the slide block 14 and provided with a hanging table cavity are arranged on the base 13 and used for limiting the downward movement distance of the slide block 14, the slide block 14 is fixed on the base 13 through clearance fit, a pushing spring 11 and a push rod 12 are arranged above the sliding block 14, and the push rod 12 is pushed by the compression force of the pushing spring 11 to drive the sliding block 14 to perform reciprocating motion of molding and stripping; the lower template 5 is provided with a buoyancy lifting block 15, the buoyancy lifting block 15 is fixed on the lower template 5 through a pressing block, an ejector rod 16 and an ejection spring 17 are arranged below the buoyancy lifting block 15, and the ejector rod 16 is pushed by the compression force of the ejection spring 17 to drive the buoyancy lifting block 15 to perform reciprocating motion of buoyancy lifting, material removal and resetting on parts; during stamping: the upper die part of the die is fixed on the upper table surface of the punching machine, the lower die part is fixed on the lower table surface of the punching machine, and then the upper table surface of the punching machine drives the upper die part of the die to move downwards until the die is completely closed, so that one-time punching is completed.
The utility model discloses the use:
a, an upper die holder 1 is fixed on the upper table surface of a punching machine during punching, a threaded hole is arranged on the back surface of the upper die holder 1, a threaded counter bore is arranged on an upper clamping plate 2, the upper die holder 1 is fixed below the upper die holder 1 through a bolt, a forming punch 10 is arranged on the upper clamping plate 2, the forming punch 10 is arranged to be a molded surface corresponding to the negative angle of a part, a thread is arranged on the front surface of the forming punch 10, a counter bore corresponding to the thread position of the forming punch 10 is arranged above the upper die holder 1, the forming punch 10 is fixed through the bolt, a base 13 and a sliding block 14 are arranged on a discharging plate 4, the base 13 is fixed on the discharging plate 4 through threaded connection, the sliding block 14 is arranged to be a molded surface corresponding to the negative angle of the part, the appearance is arranged to be tapered and provided with a hanging table, a guide groove corresponding to the appearance of the sliding block 14 is arranged on the base 13 and provided with a hanging table limiting cavity, a pushing spring 11 and a push rod 12 are arranged above the sliding block 14, and the push rod 12 is pushed by the compression force of the pushing spring 11 to drive the sliding block 14 to perform reciprocating motion of molding and stripping; a material pressing spring 8 is also arranged below the upper die holder; the limiting bolt 9 and the pressing spring 8 mainly act on the pressing plate 3, and when the die moves up and down, the pressing spring 8 realizes the reciprocating motion of pressing and discharging of the pressing plate 3 through the compression force; the limiting bolt 9 is hung on the upper die base 1 and is connected to the discharging plate 4 through threads, plays a limiting role when the pressing spring 8 drives the pressing plate 3 to move downwards and is connected with an upper die of the die;
b, fixing a lower die holder 6 on the lower table surface of the punch press, arranging a threaded hole on the lower die holder 6, arranging a corresponding threaded counter bore on the lower template 5, and fixing the threaded counter bore above the lower die holder 6 through a bolt; the lower die plate 5 is provided with a floating block 15, the side surface of the floating block 15 is provided with a pressing block groove with a certain depth, the pressing block is locked and fixed on the lower die plate 5 through bolts, an ejector rod 16 and an ejection spring 17 are arranged below the floating block 15, the ejector rod 16 is pushed by the compression force of the ejection spring 17 to drive the floating block 15 to carry out reciprocating motion of floating, stripping and resetting on parts, and the parts are connected to form a lower die of the die;
a guide post 7 with a guiding function is arranged between the upper die holder 1 and the lower die holder 6, the lower end of the guide post 7 is fixed on the lower die holder 6 through clearance fit, the upper die holder 1 is provided with a guide sleeve which is tightly matched with the guide post 7, and when the upper table surface of the punch drives the upper die to move, the guide sleeve of the upper die holder 1 vertically moves along the guide post 7 to play a guiding function;
d, during punching forming, an upper die of the die vertically moves downwards along the guide post 7 under the action of an upper table surface of a punch press until the stripper plate 4 is attached to the upper surface of the part, and continues to move downwards until the lower surface of the part is attached to the lower die plate 5, so that the parts are pressed and positioned;
e: the punch continues to move downwards, the pressing spring 8 starts to compress, the upper clamping plate 3 moves downwards and is completely attached to the pressing plate 3, the molded surfaces on the molding punch 10 and the sliding block 14 are completely attached to the part, and the negative angle part of the part is molded completely and reaches the bottom dead center of the punch;
f: after punching is finished, the upper table surface of the punch drives the upper die of the die to move upwards integrally, under the action of the compression force of a material pressing spring 8, an upper clamping plate 2 is separated from a material pressing plate 3, then a sliding block 14 pushes a push rod 12 to drive the sliding block 14 to move downwards to the dead point position of a hanging table cavity of a base 13 under the compression force of a material pushing spring 11, a part pushes a push rod 16 to drive a floating block 15 to move upwards under the action of the compression force of a material pushing spring 17, so that the part is separated from a lower die plate 5, and one-time stripping; completing one cycle until the upper die reaches the top dead center of the punch; the parts of the attached drawings are provided with a track line for simulating the motion of the negative-angle part during bending and forming.
The utility model discloses mould simple structure, be convenient for make, and the cost is lower.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a fashioned mould structure of "negative angle" part bending, includes upper die base and die holder, its characterized in that: the stamping die is characterized by further comprising an upper clamping plate, a material pressing plate, a discharging plate and a lower die plate, wherein the upper clamping plate is arranged below the upper die base, the material pressing plate is connected with the upper clamping plate through a limiting bolt, the discharging plate is arranged below the material pressing plate, a material pressing gap is reserved between the material pressing plate and the discharging plate, a stamping mechanism for stamping parts is further arranged on the upper die base, and a sliding guide mechanism matched with the stamping mechanism for use is further arranged on the upper die base; the lower template is arranged above the lower die base, and the upper die base is also provided with a floating mechanism for floating and discharging the punched parts.
2. The die structure for bending and forming the negative-angle part according to claim 1, wherein: the stamping mechanism sequentially penetrates through the upper die base, the upper clamping plate, the material pressing plate and the discharging plate, the stamping mechanism is a forming punch, and a molded surface corresponding to a negative angle of a part is machined on the bottom end surface of the forming punch.
3. The die structure for bending and forming the negative-angle part according to claim 1, wherein: the sliding guide mechanism sequentially penetrates through the upper die base, the upper clamping plate, the material pressing plate and the discharging plate, and comprises a material pushing spring, a push rod arranged at the lower end of the material pushing spring, a base arranged at the lower end of the push rod and a sliding block arranged at the lower end of the base.
4. The die structure for bending and forming the negative-angle part according to claim 1, wherein: the buoyancy lifting mechanism penetrates through the upper die base from bottom to top in sequence, and the buoyancy lifting mechanism comprises an ejection spring, an ejector rod arranged at the upper end of the ejection spring and a buoyancy lifting block arranged at the upper end of the ejector rod.
5. The mold structure for bending and forming the negative-angle part according to claim 4, wherein: the side surface of the buoyancy lifting block is provided with a pressing block groove with a certain depth, and the pressing block is locked and fixed on the lower template through a guide bolt.
6. The die structure for bending and forming the negative-angle part according to claim 5, wherein: the width of the pressing block groove is slightly larger than the transverse width of the pressing block, so that the floating block is not influenced by the guide bolt when moving up and down, and meanwhile, the side part of the pressing block can also play a role in guiding and limiting the floating block.
7. The die structure for bending and forming the negative-angle part according to claim 6, wherein: the depth of the pressing block groove is 1/2-2/3 of the thickness of the buoyancy lifting block.
8. The die structure for bending and forming the negative-angle part according to claim 1, wherein: and a guide pillar is arranged between the upper die holder and the lower die holder, the lower end of the guide pillar is fixed on the lower die holder through clearance fit, and a guide sleeve closely matched with the guide pillar is arranged on the upper die holder.
9. The die structure for bending and forming the negative-angle part according to claim 1, wherein: the upper die base is further provided with a material pressing spring, and the material pressing spring penetrates through the upper die base, the upper clamping plate and the material pressing plate.
10. The die structure for bending and forming the negative-angle part according to claim 1, wherein: the upper die base is provided with a countersunk hole, the limiting bolt is hung in the countersunk hole, the lower end of the limiting bolt penetrates through the upper clamping plate and the pressure plate and extends to the discharging plate, and the limiting bolt is fixedly connected with the upper clamping plate, the pressure plate and the discharging plate through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921190641.2U CN210497988U (en) | 2019-07-26 | 2019-07-26 | Mould structure for bending and forming negative angle part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921190641.2U CN210497988U (en) | 2019-07-26 | 2019-07-26 | Mould structure for bending and forming negative angle part |
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| CN210497988U true CN210497988U (en) | 2020-05-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238290A (en) * | 2019-07-26 | 2019-09-17 | 安徽新悦精密机械有限公司 | A kind of molding mould structure of " negative angle " part bending |
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2019
- 2019-07-26 CN CN201921190641.2U patent/CN210497988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238290A (en) * | 2019-07-26 | 2019-09-17 | 安徽新悦精密机械有限公司 | A kind of molding mould structure of " negative angle " part bending |
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