CN214814162U - Multi-size deep drawing die capable of adjusting blank pressing force - Google Patents
Multi-size deep drawing die capable of adjusting blank pressing force Download PDFInfo
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- CN214814162U CN214814162U CN202120800740.9U CN202120800740U CN214814162U CN 214814162 U CN214814162 U CN 214814162U CN 202120800740 U CN202120800740 U CN 202120800740U CN 214814162 U CN214814162 U CN 214814162U
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- 238000003825 pressing Methods 0.000 title claims abstract description 41
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides a many sizes deep-drawing mould of adjustable blank holder power, belongs to deep-drawing mould technical field, has solved traditional deep-drawing mould and has been suitable for technical problem such as the sheet material is single, blank holder power adjustment difficulty and sheet material is easily cracked. The solution is as follows: a multi-size drawing die capable of adjusting blank pressing force comprises an upper die and a lower die arranged below the upper die, wherein the upper die comprises an upper die handle, an upper die base plate, an upper die fixing plate, a drawing male die and a guide sleeve; the blank pressing device compresses the plate, the blank pressing force adjusting device can adjust the blank pressing force on the workpiece, and the discharging device can eject the workpiece and the drawing female die after drawing. The utility model discloses simple structure, convenient operation can keep the constancy of blank holder power and accurate control blank holder power, a set of deep-drawing mould alright realize the deep-drawing of multiple size work piece, reduce cost.
Description
Technical Field
The utility model belongs to the technical field of the deep-drawing mould, concretely relates to many sizes deep-drawing mould of adjustable blank holder power.
Background
Drawing is a stamping process method for making a plate into an open hollow part through a die, is one of the commonly used process methods for sheet stamping forming, wrinkling and rupture are two main failure modes in the drawing forming process, and in actual production, the aims of preventing wrinkling or rupture and controlling the forming process can be achieved by applying proper edge pressing force to a flange area of a deformed plate.
How to effectively prevent wrinkling defects in the drawing process is always one of the key points of the drawing die design, and the most common method at present is to apply a certain edge pressing force to a plate deformation zone by adopting an elastic edge pressing device. However, this method has problems that:
1. the edge pressing force generated by the method can only be suitable for the same pair of dies with the same composition and thickness of the plate, and the edge pressing force is difficult to adjust when the composition and the thickness of the plate are changed;
2. along with the increase of the deep drawing depth, the degree of compression of the elastic element is increased all the time, so that the blank holder force is increased all the time, and the possibility of the sheet material being pulled apart is increased;
3. the same pair of dies can only draw the plate with one size, and if different plates are drawn, different dies are used, so that the cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a many sizes deep-drawing mould of adjustable blank pressing power, solved that traditional deep-drawing mould is suitable for technical problem such as the sheet material is single, blank pressing power adjustment difficulty, sheet material is easily cracked and is difficult for unloading.
In order to solve the above problem, the technical scheme of the utility model is that: a multi-size drawing die capable of adjusting blank pressing force comprises an upper die and a lower die arranged below the upper die, wherein the upper die comprises an upper die handle, an upper die base plate, an upper die fixing plate, a drawing male die and guide sleeves; the lower die comprises a lower die handle, a lower die base, a lower die fixing seat, a drawing female die and guide pillars, the bottom end of the lower die handle is fixedly mounted on a workbench of a press machine, the upper end of the lower die handle is mounted at the center of the bottom surface of the lower die base, four groups of guide pillars are uniformly mounted at four corners of the top surface of the lower die base, the lower die fixing seat is mounted in the middle of the top surface of the lower die base, a plate through hole is formed in the center of the lower die fixing seat, the drawing female die is arranged at the upper part of the plate through hole, the four groups of guide sleeves are respectively sleeved on the four groups of guide pillars, and the upper die moves up and down relative to the lower die under the guiding action of the guide pillars; wherein:
the drawing die further comprises a blank holder device, a blank holder force adjusting device and a discharging device;
the blank holder is arranged on the top surface of the lower die fixing seat and comprises a blank holder and a blank holder fixing plate, a blank holder through hole is formed in the middle of the blank holder fixing plate, the blank holder is fixedly arranged in the blank holder through hole, a male die through hole is formed in the middle of the blank holder, a plate is arranged between the drawing female die and the blank holder, the plate is pressed by the blank holder, and the drawing male die downwards penetrates through the male die through hole to draw the plate;
the blank holder force adjusting device comprises a hand wheel turntable, a pull rod fixing plate, a spring push plate and four groups of pull rods, wherein a first sleeve through hole is formed in the center of the pull rod fixing plate, four groups of first pull rod through holes are uniformly distributed on the periphery of the pull rod fixing plate, a second sleeve threaded through hole is formed in the center of the spring push plate, four groups of second pull rod through holes are uniformly distributed in the positions, corresponding to the first pull rod through holes, on the periphery of the spring push plate, four groups of third pull rod through holes are uniformly distributed in the positions, corresponding to the first pull rod through holes, on the periphery of the lower die holder, and four groups of fourth pull rod through holes are uniformly distributed in the positions, corresponding to the first pull rod through holes, on the periphery of the blank holder fixing plate;
the hand wheel turntable comprises a rotary sleeve and a rotary disk fixedly sleeved at the lower end of the rotary sleeve, the rotary sleeve is sleeved outside the lower die handle, the pull rod fixing plate is sleeved on the outer wall of the lower part of the rotary sleeve in a vertically sliding mode through a first sleeve through hole, the spring push plate is sleeved on the outer wall of the upper part of the rotary sleeve through a second sleeve threaded through hole and in threaded connection with the outer wall of the upper part of the rotary sleeve, the bottom ends of the four groups of pull rods are fixed in the first pull rod through hole respectively, the upper ends of the four groups of pull rods penetrate through the corresponding second pull rod through hole and the corresponding third pull rod through hole respectively and then are fixed in a fourth pull rod through hole, a compression spring is sleeved on the pull rod between the pull rod fixing plate and the spring push plate, and two ends of the compression spring are fixed on the pull rod fixing plate and the spring push plate respectively;
the discharging device comprises a pushing block and a plurality of groups of pushing rods, the pushing block is arranged in a plate through hole and located below the drawing female die, the pushing rods are vertically and evenly arranged below the pushing block, a pushing rod through hole is formed in the position, corresponding to the pushing rod, of the lower die seat, the top end of the pushing rod is connected with the bottom surface of the pushing block, and the bottom end of the pushing rod penetrates through the pushing rod through hole in the lower die seat and then is fixed on the top surface of the spring pushing plate.
Furthermore, clearance fit is adopted between the inner wall of the rotary sleeve and the outer wall of the lower die handle.
Furthermore, a friction base plate is arranged at the contact position of the top surface of the rotating sleeve and the lower die handle.
Furthermore, a positioning ring is arranged between the blank holder and the blank holder fixing plate, a snap ring is arranged at the edge of the bottom of a blank holder through hole of the blank holder fixing plate, a lapping ring matched with the snap ring is arranged at the top of the outer wall of the positioning ring, a positioning ring is arranged at the bottom of the inner wall of the positioning ring, and the inner diameter of the positioning ring is the same as the outer diameter of the plate; the bottom surface of the positioning ring is arranged on the top surface of the drawing female die, and the lap ring of the positioning ring is clamped on the snap ring.
Further, a boss is arranged at the center of the top surface of the push block, the outer diameter of the boss is smaller than that of the push block, and the outer diameter of the boss is smaller than that of the inner diameter of the drawing female die.
Furthermore, the axes of the upper die handle, the drawing male die, the drawing female die, the blank holder and the lower die handle are collinear.
Further, the upper die fixing plate and the upper die base plate are fixedly connected with the upper die base through a plurality of screws and a plurality of positioning pins, and the deep drawing male die is detachably arranged in the middle of the upper die fixing plate; the drawing female die is detachably arranged on the lower die fixing seat.
Furthermore, the top surface of the lower die fixing seat is provided with a limiting block, a limiting groove is formed in the position, opposite to the limiting block, of the drawing female die, and the limiting block is arranged in the limiting groove.
Furthermore, an edge pressing force scale groove is formed in the rotating disc.
Further, many sizes deep-drawing mould still includes control system and hand wheel carousel actuating system, hand wheel carousel actuating system drive rotary disk rotates, electrical connection between control system and the hand wheel carousel actuating system, control system's signal output part is connected with hand wheel carousel actuating system's signal input part, and then the rotation angle of control rotary disk.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the drawing male die, the drawing female die and the blank holder are detachably connected, so that the drawing of cylindrical parts with different diameters can be realized by replacement, the die does not need to be replaced, the cost is reduced, and the efficiency is improved;
2. the blank pressing force is constant, a compression spring is arranged between the pull rod fixing plate and the spring pushing plate, the compression spring generates downward force to push the pull rod fixing plate and the pull rod to further drive the blank pressing ring fixing plate to move downward to generate blank pressing force, and the blank pressing force is fixed due to the fact that the compression amount of the compression spring is not changed in the whole drawing process, and the possibility that the blank pressing force is increased to cause sheet material to be pulled and cracked is avoided;
3. the edge pressing force is convenient to adjust, the spring push plate is in threaded connection with the rotary sleeve, the spring push plate is driven to move up and down by rotating the rotary disc, the distance between the spring push plate and the pull rod fixing plate is changed, the compression amount of the compression spring is adjusted, and the edge pressing force is further changed;
4. the rotary disc is provided with a circle of blank holder force scale grooves, blank holder force is quantified, and the blank holder force with different ranges can be provided by only rotating the rotary disc by a corresponding angle to achieve more accurate blank holder force and replacing compression springs with different strengths;
5. the rotary disk can be connected with the hand wheel turntable driving system, the control system can transmit signals to the hand wheel turntable driving system according to the requirement of the blank pressing force, and then the rotation angle of the rotary disk is automatically controlled, so that intelligent automation is realized.
6. The deep drawing die is provided with the discharging device, the push block and the boss on the push block are arranged, after deep drawing, the spring push plate moves upwards through rotation to drive the pull rod and the push rod to move upwards, the push block moves upwards under the driving of the push rod, the boss firstly pushes out a workpiece and continues to push upwards, and the push block then pushes out a deep drawing female die, so that the discharging process is realized.
The utility model discloses simple structure, convenient operation can keep the constancy of blank holder power and accurate control blank holder power, a set of deep-drawing mould alright realize the deep-drawing of multiple size work piece, reduce cost.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the middle-pressure side ring fixing plate of the present invention;
FIG. 3 is a schematic structural view of the middle blank holder of the present invention;
fig. 4 is a schematic structural view of a middle pull rod fixing plate of the present invention;
FIG. 5 is a schematic structural view of a spring pushing plate of the present invention;
FIG. 6 is a schematic structural view of the middle and lower die shank of the present invention;
FIG. 7 is a schematic view of the split structure of the fixing plate and the blank holder of the middle blank holder of the present invention;
fig. 8 is a schematic structural view of the middle push block of the present invention;
fig. 9 is a schematic structural view of the middle rotary table of the present invention;
fig. 10 is a control flow chart of the control system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
An adjustable blank holder force multi-size drawing die as shown in figures 1 to 10 wherein: the stamping die comprises an upper die 1 and a lower die 2 arranged below the upper die 1, wherein the upper die 1 comprises an upper die handle 1-1, an upper die base 1-2, an upper die base plate 1-3, an upper die fixing plate 1-4, a drawing male die 1-5 and guide sleeves 1-6, the upper end of the upper die handle 1-1 is fixedly arranged on a slide block of a press machine, the bottom end of the upper die handle 1-1 is arranged at the center of the top surface of the upper die base 1-2, four corners of the upper die base 1-2 are uniformly provided with four groups of the guide sleeves 1-6, and the upper die base plate 1-3, the upper die fixing plate 1-4 and the drawing male die 1-5 are sequentially arranged in the middle of the bottom surface of the upper die base 1-2; the lower die 2 comprises a lower die handle 2-1, a lower die base 2-2, a lower die fixing base 2-3, a drawing female die 2-4 and a guide post 2-5, the bottom end of the lower die handle 2-1 is fixedly arranged on a workbench of a press machine, the upper end of the lower die handle 2-1 is arranged at the center of the bottom surface of the lower die base 2-2, four groups of guide posts 2-5 are uniformly arranged at four corners of the top surface of the lower die base 2-2, the lower die fixing seat 2-3 is arranged in the middle of the top surface of the lower die seat 2-2, a plate through hole 2-3-1 is arranged in the center of the lower die fixing seat 2-3, the drawing female die 2-4 is arranged at the upper part of the plate through hole 2-3-1, four groups of guide sleeves 1-6 are respectively sleeved on four groups of guide posts 2-5, and the upper die 1 moves up and down relative to the lower die 2 under the guiding action of the guide posts 2-5; the upper die shank 1-1 and the lower die shank 2-1 are respectively arranged on a press machine, the lower die shank 2-1 is fixed, and the press machine can drive the upper die shank 1-1 to move up and down.
The drawing die further comprises a blank holder device 3, a blank holder force adjusting device 4 and a discharging device 5; the edge pressing device 3 compresses the plate 6, the edge pressing force adjusting device 4 can adjust the edge pressing force on the workpiece, and the discharging device 5 can eject the workpiece and the drawing female die 2-4 after drawing is finished.
The blank holder device 3 is arranged on the top surface of a lower die fixing seat 2-3, the blank holder device 3 comprises a blank holder 3-1 and a blank holder fixing plate 3-2, a blank holder through hole 3-2-1 is formed in the middle of the blank holder fixing plate 3-2, the blank holder 3-1 is fixedly arranged in the blank holder through hole 3-2-1, a male die through hole 3-1-1 is formed in the middle of the blank holder 3-1, a sheet material 6 is arranged between a drawing female die 2-4 and the blank holder device (3) and is pressed against the sheet material 6 through the bottom of the blank holder 3-1, and the drawing male die 1-5 downwards penetrates through the male die through hole 3-1-1 to draw the sheet material 6;
the blank holder force adjusting device 4 comprises a hand wheel turntable 4-1, a pull rod fixing plate 4-2, a spring push plate 4-3 and four groups of pull rods 4-4, wherein a first sleeve through hole 4-2-1 is formed in the center of the pull rod fixing plate 4-2, four groups of first pull rod through holes 4-2-2 are uniformly distributed around the pull rod fixing plate 4-2, a second sleeve threaded through hole 4-3-1 is formed in the center of the spring push plate 4-3, four groups of second pull rod through holes 4-3-2 are uniformly distributed at the position, corresponding to the first pull rod through hole 4-2-2, of the periphery of the spring push plate 4-3, four groups of third pull rod through holes 2-2-1 are uniformly distributed at the position, corresponding to the first pull rod through hole 4-2-2, of the periphery of the lower die base 2-2, four groups of fourth pull rod through holes 3-2-2 are uniformly distributed at the positions, corresponding to the first pull rod through holes 4-2-2, on the periphery of the blank holder fixing plate 3-2;
the hand wheel turntable 4-1 comprises a rotary sleeve 4-1-1 and a rotary disk 4-1-2 fixedly sleeved on the outer side of the lower end of the rotary sleeve 4-1-1, the rotary sleeve 4-1-1 is sleeved on the lower die shank 2-1, the pull rod fixing plate 4-2 is sleeved on the outer wall of the rotary sleeve 4-1-1 in an up-and-down sliding manner through a first sleeve through hole 4-2-1, the spring pushing plate 4-3 is sleeved on the outer wall of the upper part of the rotary sleeve 4-1-1 through a second sleeve threaded through hole 4-3-1 and is in threaded connection with the outer wall of the upper part of the rotary sleeve 4-1-1, the bottom ends of the four groups of pull rods 4-4 are respectively fixed in the first pull rod through hole 4-2-2, the upper ends of the four groups of pull rods 4-4 respectively penetrate through the corresponding second pull rod through hole 4-3-2 and third pull rod through hole 2-2-1 and then are fixed in the fourth pull rod through hole 3-2-2, and the pull rods 4-4 can slide up and down in the second pull rod through hole 4-3-2 and the third pull rod through hole 2-2-1; a compression spring 4-5 is sleeved on the pull rod 4-4 between the pull rod fixing plate 4-2 and the spring pushing plate 4-3, and two ends of the compression spring 4-5 are respectively fixed on the pull rod fixing plate 4-2 and the spring pushing plate 4-3; the first sleeve through hole 4-2-1 of the pull rod fixing plate 4-2 is not in contact with the outer wall of the rotating sleeve 4-1-1 and can slide up and down without being hindered, the bottom end of the pull rod 4-4 is fixedly connected with the first pull rod through hole 4-2-2 through threads, and the top end of the pull rod 4-4 is fixedly connected with the fourth pull rod through hole 3-2-2 through threads.
The discharging device 5 comprises a push block 5-1 and a plurality of groups of push rods 5-2, the push block 5-1 is arranged in the plate through hole 2-3-1, and is positioned below the drawing female die 2-4, a plurality of groups of push rods 5-2 are vertically and evenly arranged below the push block 5-1, a push rod through hole 2-2-2 is arranged at the position of the lower die seat 2-2 corresponding to the push rod 5-2, the top end of the push rod 5-2 is connected with the bottom surface of the push block 5-1, the bottom end of the push rod 5-2 is fixed on the top surface of the spring push plate 4-3 after penetrating through the push rod through hole 2-2-2 on the lower die holder 2-2, the spring pushing plate 4-3 drives the push rod 5-2 and the push block 5-1 to slide up and down to push out the drawing female die 2-4 and the plate 6.
Furthermore, the inner wall of the rotating sleeve 4-1-1 and the outer wall of the lower die shank 2-1 are in clearance fit. The lower die shank 2-1 serves as a rotating shaft for the rotating sleeve 4-1-1.
Further, a friction backing plate 7 is arranged at the contact position of the top surface of the rotating sleeve 4-1-1 and the lower die shank 2-1. During the rotation of the hand wheel rotating disc 4-1, particularly when the spring pushing plate 4-3 moves upwards, upward pressure and friction force are generated, the lower die shank 2-1 in hard contact is abraded in time, and the friction backing plate 7 is used for consuming abrasion.
Further, a positioning ring 3-3 is arranged between the blank holder 3-1 and the blank holder fixing plate 3-2, a clamping ring 3-2-3 is arranged at the edge of the bottom of a blank holder through hole 3-2-1 of the blank holder fixing plate 3-2, an overlap ring 3-3-1 matched with the clamping ring 3-2-3 is arranged at the top of the outer wall of the positioning ring 3-3, a positioning ring 3-3-2 is arranged at the bottom of the inner wall of the positioning ring 3-3, and the inner diameter of the positioning ring 3-3-2 is the same as the outer diameter of the plate 6; the bottom surface of the positioning ring 3-3 is arranged on the top surface of the drawing female die 2-4, and the lap ring 3-3-1 is clamped on the snap ring 3-2-3. The clamping ring 3-2-3 is used for clamping the positioning ring 3-3, the positioning ring 3-3 is used for ensuring the concentricity of the plate, and the positioning ring 3-3 can slide up and down without affecting edge pressing.
Further, a boss 5-3 is arranged at the center of the top surface of the push block 5-1, the outer diameter of the boss 5-3 is smaller than that of the push block 5-1, and the outer diameter of the boss 5-3 is smaller than that of the inner diameter of the drawing female die 2-4. The top surface of the boss 5-3 and the upper top surface of the push block 5-1 are respectively a push-out working surface of the workpiece and the drawing female die 2-4, in the pushing process, the workpiece is firstly pushed to be separated from the drawing female die 2-4 through the contact of the top surface of the boss 5-3 and the workpiece, if the push block 5-1 continuously rises, the drawing female die 2-4 is pushed out of the drawing female die 2-4, if the drawing female die 2-4 does not need to be pushed out, the lifting is not needed, the efficiency of the drawing work is improved, when the drawing female die 2-4 needs to be replaced, the drawing female die can be conveniently taken out, and a certain allowance is left between the spring push plate 4-3 and the lower die holder 2-2 and used for enabling the spring push plate 4-3 to move upwards.
Furthermore, the axial lines of the upper die shank 1-1, the drawing male die 1-5, the drawing female die 2-4, the blank holder 3-1 and the lower die shank 2-1 are collinear.
Further, the upper die fixing plate 1-4 and the upper die base plate 1-3 are fixedly connected with the upper die base 1-2 through a plurality of screws and a plurality of positioning pins, and the deep drawing male die 1-5 is detachably arranged in the middle of the upper die fixing plate 1-4; the drawing female die 2-4 is detachably arranged on the lower die fixing seat 2-3. The deep drawing male die 1-5, the deep drawing female die 2-4, the blank holder 3-1 and the locating ring 3-3 can be replaced, the deep drawing male die 1-5, the deep drawing female die 2-4, the blank holder 3-1 and the locating ring 3-3 are serialized according to requirements, each size corresponds to one set of size of the deep drawing male die 1-5, the deep drawing female die 2-4, the blank holder 3-1 and the locating ring 3-3, the initial position of the spring pushing plate 4-3 is adjusted according to workpieces with different sizes, the adjustment action can be combined with a subsequent control system 8, and the control system 8 sets different heights of the spring pushing plate 4-3 according to different series of workpieces, so that the intelligent control system is more intelligent.
Furthermore, the top surface of the lower die fixing seat 2-3 is provided with a limiting block 2-3-2, a limiting groove 2-4-1 is arranged at the position of the drawing female die 2-4 opposite to the limiting block 2-3-2, and the limiting block 2-3-2 is arranged in the limiting groove 2-4-1 to limit the rotation of the drawing female die 2-4. The drawing female die 2-4 is directly arranged in the lower die fixing seat 2-3 and is not fixed by fixing parts such as bolts, and the limiting groove 2-4-1 is arranged on the limiting block 2-3-2 during arrangement, so that the rotation of the drawing female die 2-4 in the drawing process is prevented, and the drawing female die 2-4 is convenient to take out.
Furthermore, the rotating disc 4-1-2 is provided with blank holder force scale grooves 4-1-3, and any scale corresponds to blank holder forces of different sizes. The blank holder force is quantified through the arrangement of the blank holder force scale grooves 4-1-3, the required blank holder force can be achieved only by rotating corresponding angles or turns, and the blank holder force with different ranges can be provided by replacing the compression springs 4-5 with different strengths.
Further, the multi-size drawing die further comprises a control system 8 and a hand wheel turntable driving system 9, the hand wheel turntable driving system 9 drives the rotating disc 4-1-2 to rotate, the control system 8 is electrically connected with the hand wheel turntable driving system 9, the control system 8 transmits signals to the hand wheel turntable driving system 9 according to different edge pressing forces required by different plates, and then the rotating angle of the rotating disc 4-1-2 is controlled. The rotating disc 4-1-2 is connected with an automatic hand wheel and turntable driving system 9 for automatically and accurately rotating, the control system 8 is controlled by a PLC (programmable logic controller), and the hand wheel and turntable driving system 9 is controlled according to the blank pressing force required by different plates, so that the automatic rotation of the rotating disc 4-1-2 is realized. The handwheel turntable driving system 9 is a system for driving the turntable 4-1-2, and can be any driving mechanism capable of achieving the purpose.
The utility model discloses a working process:
keeping the blank holder force constant: when the blank pressing is carried out, the compression spring 4-5 generates downward force to drive the pull rod fixing plate 4-2 and the pull rod 4-4 to move downwards and drive the blank pressing ring fixing plate 3-2 to move downwards to generate blank pressing force, and the compression amount of the compression spring 4-5 is unchanged no matter in the early stage or the later stage of the blank pressing, so that the blank pressing force is fixed, and the condition that the plate is pulled to be cracked when the blank pressing force is increased is avoided.
Adjusting the blank holder force: the spring pushing plate 4-3 is in threaded connection with the rotating sleeve 4-1-2, the rotating disc 4-1-2 is rotated to drive the spring pushing plate 4-3 to move up and down, the distance between the spring pushing plate 4-3 and the pull rod fixing plate 4-2 is changed, the compression amount of the compression spring 4-5 is adjusted, and the blank holding force is further changed, when the spring pushing plate 4-3 moves downwards, the compression spring 4-5 is compressed, the blank holding force is increased, when the spring pushing plate 4-3 moves upwards, the compression spring 4-5 is released, and the blank holding force is reduced;
unloading: the arrangement of the push block 5-1 and the boss 5-3 on the push block 5-1 enables the spring push plate 4-3 to move upwards through rotation after drawing, the pull rod 4-4 and the push rod 5-2 are driven to move upwards, the push block 5-1 is driven by the push rod 5-2 to move upwards, the boss 5-3 firstly pushes out a workpiece and continues to push upwards, and the push block 5-1 then pushes out the drawing female die 2-4, so that the unloading process is realized.
Claims (10)
1. A multi-size drawing die with adjustable blank holder force comprises an upper die (1) and a lower die (2) arranged below the upper die (1), the upper die (1) comprises an upper die handle (1-1), an upper die base (1-2), an upper die base plate (1-3), an upper die fixing plate (1-4), a deep drawing male die (1-5) and a guide sleeve (1-6), the upper end of the upper die handle (1-1) is fixedly arranged on a slide block of the press, the bottom end of the upper die handle (1-1) is arranged at the center of the top surface of the upper die base (1-2), four groups of guide sleeves (1-6) are uniformly arranged at the four corners of the upper die holder (1-2), the upper die base plate (1-3), the upper die fixing plate (1-4) and the drawing male die (1-5) are sequentially arranged in the middle of the bottom surface of the upper die base (1-2); the lower die (2) comprises a lower die handle (2-1), a lower die base (2-2), a lower die fixing seat (2-3), a drawing female die (2-4) and guide columns (2-5), the bottom end of the lower die handle (2-1) is fixedly arranged on a workbench of a press machine, the upper end of the lower die handle (2-1) is arranged at the center of the bottom surface of the lower die base (2-2), four groups of the guide columns (2-5) are uniformly arranged at four corners of the top surface of the lower die base (2-2), the lower die fixing seat (2-3) is arranged in the middle of the top surface of the lower die base (2-2), a plate through hole (2-3-1) is arranged at the center of the lower die fixing seat (2-3), the drawing female die (2-4) is arranged at the upper part of the plate through hole (2-3-1), the four groups of guide sleeves (1-6) are respectively sleeved on the four groups of guide posts (2-5), and the upper die (1) moves up and down relative to the lower die (2) under the guiding action of the guide posts (2-5); the method is characterized in that:
the deep drawing die further comprises a blank pressing device (3), a blank pressing force adjusting device (4) and a discharging device (5);
the edge pressing device (3) is arranged on the top surface of the lower die fixing seat (2-3), the edge pressing device (3) comprises an edge pressing ring (3-1) and an edge pressing ring fixing plate (3-2), a blank holder through hole (3-2-1) is arranged in the middle of the blank holder fixing plate (3-2), the blank holder (3-1) is fixedly arranged in the blank holder through hole (3-2-1), the middle part of the blank holder (3-1) is provided with a punch through hole (3-1-1), the sheet material (6) is arranged between the drawing female die (2-4) and the blank holder device (3), the plate (6) is tightly pressed through the blank holder (3-1), and the deep drawing male die (1-5) downwards penetrates through the male die through hole (3-1-1) to deep draw the plate (6);
the blank holder force adjusting device (4) comprises a hand wheel turntable (4-1), a pull rod fixing plate (4-2), a spring push plate (4-3) and four groups of pull rods (4-4), wherein a first sleeve through hole (4-2-1) is formed in the center of the pull rod fixing plate (4-2), four groups of first pull rod through holes (4-2-2) are uniformly distributed around the pull rod fixing plate (4-2), a second sleeve threaded through hole (4-3-1) is formed in the center of the spring push plate (4-3), four groups of second pull rod through holes (4-3-2) are uniformly distributed around the spring push plate (4-3) and corresponding to the first pull rod through holes (4-2-2), and four groups of second pull rod through holes (4-3-2) are uniformly distributed around the lower die seat (2-2) and corresponding to the first pull rod through holes (4-2-2) The blank holder fixing plate (3-2) is uniformly provided with four groups of fourth pull rod through holes (3-2-2) at the positions corresponding to the first pull rod through holes (4-2-2) on the periphery of the blank holder fixing plate (3-2);
the hand wheel turntable (4-1) comprises a rotary sleeve (4-1-1) and a rotary disk (4-1-2) fixedly sleeved at the lower end of the rotary sleeve (4-1-1), the rotary sleeve (4-1-1) is sleeved at the outer side of the lower die handle (2-1), the pull rod fixing plate (4-2) is sleeved at the outer wall of the lower part of the rotary sleeve (4-1-1) in a vertically sliding manner through a first sleeve through hole (4-2-1), the spring pushing plate (4-3) is sleeved at the outer wall of the upper part of the rotary sleeve (4-1-1) through a second sleeve threaded through hole (4-3-1) and is in threaded connection with the outer wall of the upper part of the rotary sleeve (4-1-1), the bottom ends of the four groups of pull rods (4-4) are respectively fixed in the first pull rod through hole (4-2-2), the upper ends of the four groups of pull rods (4-4) respectively penetrate through corresponding second pull rod through holes (4-3-2) and third pull rod through holes (2-2-1) and then are fixed in fourth pull rod through holes (3-2-2), compression springs (4-5) are sleeved on the pull rods (4-4) between the pull rod fixing plates (4-2) and the spring pushing plates (4-3), and two ends of each compression spring (4-5) are respectively fixed on the pull rod fixing plates (4-2) and the spring pushing plates (4-3);
the discharging device (5) comprises a push block (5-1) and a plurality of groups of push rods (5-2), the push block (5-1) is arranged in a plate through hole (2-3-1) and located below a deep drawing female die (2-4), the push rods (5-2) are vertically and uniformly arranged below the push block (5-1), a push rod through hole (2-2-2) is formed in the position, corresponding to the push rod (5-2), on the lower die base (2-2), the top end of the push rod (5-2) is connected with the bottom surface of the push block (5-1), and the bottom end of the push rod (5-2) penetrates through the push rod through hole (2-2-2) in the lower die base (2-2) and then is fixed to the top surface of the spring push plate (4-3).
2. The multi-dimensional drawing die with adjustable blank holder force as claimed in claim 1, wherein: the inner wall of the rotating sleeve (4-1-1) is in clearance fit with the outer wall of the lower die handle (2-1).
3. The multi-dimensional drawing die with adjustable blank holder force as claimed in claim 1, wherein: a friction backing plate (7) is arranged at the contact position of the top surface of the rotating sleeve (4-1-1) and the lower die handle (2-1).
4. The multi-dimensional drawing die with adjustable blank holder force as claimed in claim 1, wherein: a positioning ring (3-3) is arranged between the blank holder (3-1) and the blank holder fixing plate (3-2), a snap ring (3-2-3) is arranged at the edge of the bottom of a blank holder through hole (3-2-1) of the blank holder fixing plate (3-2), a lap ring (3-3-1) matched with the snap ring (3-2-3) is arranged at the top of the outer wall of the positioning ring (3-3), a positioning ring (3-3-2) is arranged at the bottom of the inner wall of the positioning ring (3-3), and the inner diameter of the positioning ring (3-3-2) is the same as the outer diameter of the plate (6); the bottom surface of the positioning ring (3-3) is arranged on the top surface of the drawing female die (2-4), and the lap ring (3-3-1) is clamped on the snap ring (3-2-3).
5. The multi-dimensional drawing die with adjustable blank holder force as claimed in claim 1, wherein: the center of the top surface of the push block (5-1) is provided with a boss (5-3), the outer diameter of the boss (5-3) is smaller than that of the push block (5-1), and the outer diameter of the boss (5-3) is smaller than that of the inner diameter of the deep drawing female die (2-4).
6. The multi-dimensional drawing die with adjustable blank holder force as claimed in claim 1, wherein: the axes of the upper die handle (1-1), the drawing male die (1-5), the drawing female die (2-4), the blank holder (3-1) and the lower die handle (2-1) are collinear.
7. The multi-dimensional drawing die with adjustable blank holder force as claimed in claim 1, wherein: the upper die fixing plate (1-4) and the upper die base plate (1-3) are fixedly connected with the upper die base (1-2) through a plurality of screws and a plurality of positioning pins, and the deep drawing male die (1-5) is detachably arranged in the middle of the upper die fixing plate (1-4); the drawing female die (2-4) is detachably arranged on the lower die fixing seat (2-3).
8. The multi-dimensional drawing die with adjustable blank holder force as claimed in claim 1, wherein: the top surface of the lower die fixing seat (2-3) is provided with a limiting block (2-3-2), a limiting groove (2-4-1) is formed in the position, opposite to the limiting block (2-3-2), of the drawing female die (2-4), and the limiting block (2-3-2) is arranged in the limiting groove (2-4-1).
9. The multi-dimensional drawing die with adjustable blank holder force as claimed in claim 1, wherein: the rotating disc (4-1-2) is provided with a blank holder force scale groove (4-1-3).
10. The multi-dimensional drawing die with adjustable blank holder force as claimed in claim 1, wherein: the multi-size drawing die further comprises a control system (8) and a hand wheel turntable driving system (9), the hand wheel turntable driving system (9) drives the rotating disc (4-1-2) to rotate, the control system (8) is electrically connected with the hand wheel turntable driving system (9), and a signal output end of the control system (8) is connected with a signal input end of the hand wheel turntable driving system (9) so as to control the rotating angle of the rotating disc (4-1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120800740.9U CN214814162U (en) | 2021-04-19 | 2021-04-19 | Multi-size deep drawing die capable of adjusting blank pressing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120800740.9U CN214814162U (en) | 2021-04-19 | 2021-04-19 | Multi-size deep drawing die capable of adjusting blank pressing force |
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| Publication Number | Publication Date |
|---|---|
| CN214814162U true CN214814162U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120800740.9U Expired - Fee Related CN214814162U (en) | 2021-04-19 | 2021-04-19 | Multi-size deep drawing die capable of adjusting blank pressing force |
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| Country | Link |
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| CN (1) | CN214814162U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378195A (en) * | 2021-12-23 | 2022-04-22 | 重庆大学 | Metal plate deep drawing forming die and method capable of controlling blank holder force |
| CN114733951A (en) * | 2022-03-25 | 2022-07-12 | 深圳大学 | Lower die structure and temperature-controllable edge pressing progressive forming die |
| CN115318920A (en) * | 2022-10-12 | 2022-11-11 | 南通佳晟宏机械配件有限公司 | Self-adaptive stamping equipment |
-
2021
- 2021-04-19 CN CN202120800740.9U patent/CN214814162U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378195A (en) * | 2021-12-23 | 2022-04-22 | 重庆大学 | Metal plate deep drawing forming die and method capable of controlling blank holder force |
| CN114733951A (en) * | 2022-03-25 | 2022-07-12 | 深圳大学 | Lower die structure and temperature-controllable edge pressing progressive forming die |
| CN114733951B (en) * | 2022-03-25 | 2024-01-23 | 深圳大学 | Lower die structure and temperature-controllable edge pressing stage progressive forming die |
| CN115318920A (en) * | 2022-10-12 | 2022-11-11 | 南通佳晟宏机械配件有限公司 | Self-adaptive stamping equipment |
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