CN111531011B - Molding equipment for caliper piston and control method thereof - Google Patents
Molding equipment for caliper piston and control method thereof Download PDFInfo
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- CN111531011B CN111531011B CN202010361949.XA CN202010361949A CN111531011B CN 111531011 B CN111531011 B CN 111531011B CN 202010361949 A CN202010361949 A CN 202010361949A CN 111531011 B CN111531011 B CN 111531011B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/26—Programme control arrangements
Abstract
The invention discloses a forming device for a caliper piston, which has the characteristics of high forming efficiency and good forming effect, and the technical scheme is characterized by comprising a forming device and a driving system, wherein the forming device comprises a frame, an upper die and a lower die, a first hydraulic cylinder for driving the upper die to lift is arranged at the top of the frame, a plurality of groups of dies which are sequentially arranged side by side are arranged on the lower die, each die comprises four groups of rough drawing dies, secondary drawing dies, tertiary drawing dies and quartic drawing dies which are sequentially arranged, each die comprises an outer die body and an inner die body, the outer die body is sleeved on the outer side of the inner die body, the inner die body is formed by sintering iron-based powder through powder metallurgy, an oil storage ring groove is arranged on the outer wall of the inner die body, an oil filling hole communicated with the oil storage ring groove is arranged on the outer die body, a pressing ring for axially fixing the inner die body is arranged at the top of the outer die body, a plurality of micropore structures are arranged on the inner die body, the invention is suitable for the technical field of piston processing.
Description
Technical Field
The invention belongs to the technical field of piston machining, and particularly relates to forming equipment for a caliper piston and a control method thereof.
Background
The brake caliper is an assembly attached to the front and the rear of a brake disc, a single or a plurality of pistons are arranged in the brake caliper, pressure is generated when a brake pedal is stepped down, brake oil is forced to push the pistons, and then a brake pad is pushed to clamp the brake disc inwards to achieve the effect of braking and decelerating; therefore, the piston belongs to one of the core parts in the caliper, and the quality of the piston directly influences the quality of the caliper; and the piston of the caliper is closely matched with the oil cylinder which is configured with the piston of the caliper, can slide back and forth, but can not cause brake fluid leakage when moving, so the excircle of the piston of the caliper has higher precision and wear resistance, and the selection of a stamping die is particularly important during molding, therefore, the existing processing equipment and process need to be further improved for improving the quality and the production efficiency of the piston.
Disclosure of Invention
The invention aims to provide forming equipment for a caliper piston, which has the characteristics of high forming efficiency and good forming effect.
The purpose of the invention is realized as follows: the utility model provides a former for calliper piston, includes forming device and actuating system, and forming device includes the frame, goes up mould and lower mould, its characterized in that: the top of the rack is provided with a first hydraulic cylinder for driving an upper die to lift, the lower die is provided with a plurality of groups of dies which are sequentially arranged side by side, each die comprises four groups of rough drawing dies, secondary drawing dies, tertiary drawing dies and quartic drawing dies which are sequentially arranged, each die is provided with a stamping cavity, the upper die is provided with a plurality of stamping rods right opposite to the stamping cavity, the periphery of the bottom end of each die is further provided with a discharge port and a material ejection port which are symmetrically arranged, the discharge port and the material ejection port are communicated with the stamping cavities, a material ejection rod is arranged in the material ejection port, the rack is provided with a second hydraulic cylinder for driving the material ejection rod to translate, the die is further provided with a material blocking rod, and the rack is provided with a third hydraulic cylinder for driving the material blocking rod to translate;
the die comprises an outer die body and an inner die body, the outer die body is sleeved outside the inner die body, the inner die body is formed by sintering iron-based powder through powder metallurgy, an oil storage ring groove is formed in the outer wall of the inner die body, an oil filling hole communicated with the oil storage ring groove is formed in the outer die body, a pressing ring for axially fixing the inner die body is arranged at the top of the outer die body, a plurality of micro-pore structures are arranged on the inner die body, and oil passage channels communicated with the oil storage ring groove and the inner wall of the inner die body are formed by the micro-pore structures;
the top of a stamping cavity of the rough drawing die is provided with a tapered hole, and the rough drawing die is used for stamping the piston sheet raw material into a blank;
the secondary stretching die is used for carrying out secondary stretching on the blank stretched by the coarse stretching die;
the third stretching die is used for stretching the blank stretched by the second stretching die for three times;
the fourth stretching die is used for stretching the blank stretched by the third stretching die for four times.
The invention is further configured to: the driving system comprises an oil supply pipeline, an oil return pipeline and a first Y-shaped three-position four-way valve, the first Y-shaped three-position four-way valve comprises a first oil inlet P, a first working oil port A, a first working oil port B and a first oil return port T, the first hydraulic cylinder comprises a first rod cavity and a first rod-free cavity, the first rod cavity is communicated with the first working oil port A through a first oil way, the first rod cavity is communicated with the first working oil port B through a second oil way, and the oil supply pipeline and the oil return pipeline are both communicated with the first hydraulic cylinder through the first Y-shaped three-position four-way valve;
the driving system further comprises a lubricating oil liquid storage cylinder, the lubricating oil liquid storage cylinder comprises a fourth rod cavity and a fourth rodless cavity, a reset spring is arranged in the fourth rod cavity, lubricating oil is filled in the fourth rod cavity, a third oil path used for the lubricating oil to enter and exit is further arranged on the fourth rod cavity, the third oil path is communicated with the oil filling hole, a fourth oil path used for the hydraulic oil to enter and exit is arranged on the fourth rodless cavity, the fourth oil path is connected to the second oil path, and a throttle valve is connected to the fourth oil path.
The invention is further configured to: the outer die body is also provided with a pressure regulating hole communicated with the oil storage ring groove, the pressure regulating hole is connected with a pressure regulating valve, the pressure regulating valve comprises an air inlet valve and an air outlet valve which are arranged in parallel, the air inlet valve comprises a first valve core and a first spring, the first valve core and the valve port of the air inlet valve are separated when air is fed, and air inlet is realized; the exhaust valve comprises a second valve core and a second spring which are used for controlling the exhaust valve to be closed, when the exhaust valve exhausts, the second spring is compressed, and the second valve core is separated from a valve port of the exhaust valve to realize the exhaust;
still be equipped with the first adjusting screw that is used for adjusting first spring compression on the admission valve, still be equipped with the second adjusting screw that is used for adjusting second spring compression on the air outlet valve.
The invention is further configured to: the driving system also comprises a PLC control unit, a second Y-shaped three-position four-way valve and a third Y-shaped three-position four-way valve;
the second Y-shaped three-position four-way valve comprises a second oil inlet P, a second working oil port A, a second working oil port B and a second oil return port T, the second hydraulic cylinder comprises a second rod cavity and a second rodless cavity, the second rodless cavity is communicated with the second working oil port A through a fifth oil way, the second rod cavity is communicated with the second working oil port B through a sixth oil way, and the oil supply pipeline and the oil return pipeline are both communicated with the second hydraulic cylinder through the second Y-shaped three-position four-way valve;
the third Y-shaped three-position four-way valve comprises a third oil inlet P, a third working oil port A, a third working oil port B and a third oil return port T, the third hydraulic cylinder comprises a third rod cavity and a third rodless cavity, the third rodless cavity is communicated with the third working oil port A through a seventh oil way, the third rod cavity is communicated with the third working oil port B through an eighth oil way, and the oil supply pipeline and the oil return pipeline are both communicated with the third hydraulic cylinder through the third Y-shaped three-position four-way valve;
the first hydraulic cylinder is provided with a first travel switch, the second hydraulic cylinder is provided with a second travel switch, the third hydraulic cylinder is provided with a third travel switch, the first travel switch, the second travel switch and the third travel switch feed detected signals back to the PLC control unit, and the PLC control unit is used for controlling the first Y-shaped three-position four-way valve, the second Y-shaped three-position four-way valve and the third Y-shaped three-position four-way valve.
By adopting the technical scheme, the stamping and the drawing are carried out in a multi-station simultaneous control mode, and the multi-drawing can be realized on the same equipment, so that the stamping and the drawing can be carried out on the same equipment, the production efficiency is high, and the production cost is greatly reduced;
through the structural design of a specific die, the piston has a self-lubricating effect in the stamping and stretching process, and the forming quality of the outer circle of the piston can be improved;
and through the design of a driving system, automatic control can be realized, synchronous control of stamping action and self-lubricating action is realized, the efficiency is high, and the forming effect is good.
A control method for a molding apparatus for a caliper piston, comprising the steps of:
firstly, feeding: the PLC control unit controls the first Y-shaped three-position four-way valve to be switched to the left position, hydraulic oil in the oil supply pipeline enters the first rod cavity from the first working oil port A, and the first hydraulic cylinder drives the stamping rod to ascend; the second Y-shaped three-position four-way valve is switched to the left position, hydraulic oil in the oil supply pipeline enters the second rodless cavity from the second working oil port A, and the second hydraulic cylinder drives the ejector rod to eject; the third Y-shaped three-position four-way valve is switched to the right position, hydraulic oil in the oil supply pipeline enters a third rod cavity from a third working oil port B, and a third hydraulic cylinder drives a material blocking rod to retreat; when the first stroke switch, the second stroke switch and the third stroke switch are detected in place, placing a sheet raw material to be subjected to punch forming on a rough drawing die through a manipulator;
secondly, stamping: the first Y-shaped three-position four-way valve is switched to the right position, hydraulic oil in the oil supply pipeline enters the first rodless cavity from the first working oil port B, the hydraulic oil in the first rod cavity flows back to the oil return pipeline from the first working oil hole A, the first hydraulic cylinder drives the stamping rod to descend for stamping, meanwhile, part of the hydraulic oil enters the fourth rodless cavity from the throttle valve, lubricating oil in the fourth rod cavity is extruded into the oil storage ring groove, the pressure in the oil storage ring groove is increased, and the lubricating oil overflows on the inner wall of the inner die body;
thirdly, blanking: when the first travel switch detects that the first hydraulic cylinder descends in place in the first step and delays for one second, the PLC control unit controls the first Y-shaped three-position four-way valve to be switched to the left position, and the first hydraulic cylinder drives the stamping rod to ascend; meanwhile, the PLC control unit controls the second Y-shaped three-position four-way valve to be switched to the right position and controls the third Y-shaped three-position four-way valve to be switched to the left position, the material blocking rod is ejected out to realize axial material blocking, and the material ejecting rod retreats; when the ejector rod retracts and the second travel switch detects that the ejector rod is in place, the second Y-shaped three-position four-way valve is switched to the left position, the ejector rod is ejected again, and the punched and stretched blank is ejected from the discharge hole;
and fourthly, when the second travel switch is detected in place in the third step, the manipulator puts the blank on the rough drawing die onto the secondary drawing die, puts the blank on the secondary drawing die onto the third drawing die, puts the blank on the third drawing die (8) onto the fourth drawing die, and carries out blanking on the blank on the fourth drawing die, and meanwhile, the first step is returned, and the first step to the seventh step are repeated.
By adopting the technical scheme, automatic control can be realized, synchronous control of stamping action and self-lubricating action is realized, the efficiency is high, and the forming effect is good.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic sectional view showing the structure of a rough drawing die in the present invention;
FIG. 3 is a schematic view of a pressure regulating valve according to the present invention;
FIG. 4 is a schematic view of the drive system of the present invention;
the reference numbers in the figures are: 1. an upper die; 2. a lower die; 3. a first hydraulic cylinder; 4. a rough drawing die; 5. secondary drawing die; 6. drawing the die for three times; 7. drawing the die for four times; 8. a stamping rod; 9. a discharge port; 10. a lifter bar; 11. a second hydraulic cylinder; 12. a material blocking rod; 13. a third hydraulic cylinder; 14. an outer mold body; 15. an inner mold body; 16. an oil storage ring groove; 17. an oil filler hole; 18. pressing a ring; 20. an oil supply line; 21. an oil return line; 22. a first Y-shaped three-position four-way valve; 23. a first rod chamber; 24. a first rod-less chamber; 25. a first oil passage; 26. a second oil passage; 27. a fourth rod chamber; 28. a fourth rodless cavity; 29. a third oil passage; 30. a fourth oil passage; 31. a throttle valve; 40. a pressure regulating valve; 41. an intake valve; 42. an exhaust valve; 43. a first valve spool; 44. a first spring; 45. a second valve core; 46. a second spring; 47. a first adjusting screw; 48. a second adjusting screw; 50. a second Y-shaped three-position four-way valve; 51. a third Y-shaped three-position four-way valve; 52. a second rod chamber; 53. a second rodless cavity; 54. a fifth oil passage; 55. a sixth oil passage; 56. a third rod chamber; 57. a third rodless cavity; 58. a seventh oil passage; 59. and an eighth oil passage.
Detailed Description
The invention is further described in the following with specific embodiments in conjunction with the accompanying drawings, see fig. 1-4:
the utility model provides a former for calliper piston, includes forming device and actuating system, and forming device includes the frame, goes up mould 1 and lower mould 2, its characterized in that: the top of the frame is provided with a first hydraulic cylinder 3 for driving an upper die 1 to lift, a plurality of groups of dies which are sequentially arranged side by side are arranged on a lower die 2, each die comprises four groups of coarse stretching dies 4, secondary stretching dies 5, tertiary stretching dies 6 and quartic stretching dies 7 which are sequentially arranged, each die is provided with a stamping cavity, the upper die 1 is provided with a plurality of stamping rods 8 which are just opposite to the stamping cavities, the periphery of the bottom end of each die is further provided with a discharge port 9 and a material ejecting port which are symmetrically arranged, the discharge port 9 and the material ejecting port are both communicated with the stamping cavities, a material ejecting rod 10 is arranged in the material ejecting port, the frame is provided with a second hydraulic cylinder 11 for driving the material ejecting rod 10 to translate, the die is further provided with a material blocking rod 12, and the frame is provided with a third hydraulic cylinder 13 for driving the material blocking rod 12 to translate;
the ejection rod 10 is arranged in the radial direction and used for feeding in the radial direction, the ejection rod 10 is located at the bottom of the piston blank to play a supporting role during stamping, after stamping is completed, the ejection rod 10 retracts, the piston blank falls due to self gravity, and then the ejection rod 10 extends outwards again to eject the piston blank out of the ejection opening; the material blocking rod 12 can be located at the upper end of the die, the end portion of the material ejecting rod 10 is provided with a U-shaped groove, after punching is completed, the material ejecting rod 10 extends out of the upper portion of the punching cavity, the punching rod 8 is located in the U-shaped groove, when the punching rod 8 ascends, the piston blank can be axially abutted against the material ejecting rod 10, and the piston blank is prevented from being taken out of the punching cavity by the punching rod 8.
The die comprises an outer die body 14 and an inner die body 15, wherein the outer die body 14 is sleeved outside the inner die body 15, the inner die body 15 is formed by sintering iron-based powder through powder metallurgy, an oil storage ring groove 16 is formed in the outer wall of the inner die body 15, an oil filling hole 17 communicated with the oil storage ring groove 16 is formed in the outer die body 14, a pressing ring 18 for axially fixing the inner die body 15 is arranged at the top of the outer die body 14, a plurality of micro-pore structures are arranged on the inner die body 15, and the micro-pore structures form an oil passage communicated with the oil storage ring groove and the inner wall of the inner die body 15;
can be interference fit between outer die body 14 and the interior die body 15, on the clamping ring 18 can be fixed in outer die body 14 through the mode of bolt, the clamping ring 18 plays further axial fixity effect to interior die body 15, and its lubricated principle is: in the process of stamping, stretching and forming, the piston sheet raw material and the stamping cavity generate heat through friction, and the pore space is reduced through thermal expansion, so that lubricating oil is extruded and overflows to enter the inner wall of the stretching hole to form an oil film, and the lubricating effect is achieved; after the punching and stretching are finished, the stretching hole is slowly cooled, the pore is recovered, and the lubricating oil is sucked back to the pore, so that the continuous lubricating effect is achieved, the punching and stretching forming can be facilitated, and the piston excircle forming quality is high.
The top of a stamping cavity of the rough drawing die 4 is provided with a tapered hole, and the rough drawing die 4 is used for stamping the piston sheet raw material into a blank;
the secondary stretching die 5 is used for carrying out secondary stretching on the blank stretched by the rough stretching die 4;
the third stretching die 6 is used for stretching the blank stretched by the second stretching die 5 for three times;
the fourth drawing die 7 is used for drawing the blank drawn by the third drawing die 6 four times.
The structure difference point of the rough drawing die 4 and other three groups of dies is mainly that the top of a punching cavity of the rough drawing die 4 is in an inverted cone shape, so that a metal sheet is conveniently punched into the punching cavity to be capable of gradually forming a cylindrical structure, the structures of the secondary drawing die 5, the tertiary drawing die 6 and the quaternary drawing die 7 are the same, but the dimensional accuracy of the punching cavity is gradually improved; wherein material loading and unloading of product can snatch unloading automatically through joint robot or manipulator, and joint robot or manipulator are current device, and concrete structure is not tired to state again.
The driving system comprises an oil supply pipeline 20, an oil return pipeline 21 and a first Y-shaped three-position four-way valve, the first Y-shaped three-position four-way valve comprises a first oil inlet P, a first working oil port A, a first working oil port B and a first oil return port T, the first hydraulic cylinder 3 comprises a first rod cavity 23 and a first rod-free cavity 24, the first rod cavity 23 is communicated with the first working oil port A through a first oil way 25, the first rod cavity 24 is communicated with the first working oil port B through a second oil way 26, and the oil supply pipeline 20 and the oil return pipeline 21 are both communicated with the first hydraulic cylinder 3 through the first Y-shaped three-position four-way valve;
the driving system further comprises a lubricating oil liquid storage cylinder, the lubricating oil liquid storage cylinder comprises a fourth rod cavity 27 and a fourth rodless cavity 28, a return spring is arranged in the fourth rod cavity 27, lubricating oil is filled in the fourth rod cavity 27, a third oil path 29 used for the lubricating oil to enter and exit is further arranged on the fourth rod cavity 27, the third oil path 29 is communicated with the oil filling hole 17, a fourth oil path 30 used for the hydraulic oil to enter and exit is arranged on the fourth rodless cavity 28, the fourth oil path 30 is connected to the second oil path 26, and a throttle valve 31 is connected to the fourth oil path 30.
The lubricating oil liquid storage cylinder is used for temporarily storing lubricating oil, and the principle is as follows: when hydraulic oil is introduced into the fourth rodless cavity 28, the fourth rod-containing cavity 27 is compressed, and lubricating oil enters the oil storage ring groove 16, meanwhile, because the fourth rod-containing cavity 27 is compressed, the pressure in the oil storage ring groove 16 is increased, the lubricating oil is easily pressed into the pores of the inner mold body 15, and meanwhile, the lubricating oil in the inner mold body 15 is easily extruded to the inner wall of the inner mold body 15, so that the effect of sufficient lubrication is achieved; when the third rodless cavity 57 is decompressed, the third rod-containing cavity 56 is restored under the elastic force of the restoring spring, and at the moment, the lubricating oil is sucked back into the third rod-containing cavity 56 again, the pressure in the oil storage ring groove 16 is reduced, and the lubricating oil overflowing to the outer wall of the die body is sucked back into the pores of the inner die body 15 again, so that the lubricating oil can be effectively stored; by adopting the structure, during punching at each time, the lubricating oil can be actively overflowed to the inner wall of the inner die body 15 through the lubricating oil liquid storage cylinder, the efficient lubricating effect is achieved, and the smoothness of the surface of the blank formed at each time can be ensured to meet the requirement.
The outer die body 14 is further provided with a pressure regulating hole communicated with the oil storage ring groove 16, the pressure regulating hole is connected with a pressure regulating valve 40, the pressure regulating valve 40 comprises an air inlet valve 41 and an air outlet valve 42 which are arranged in parallel, the air inlet valve 41 comprises a first valve core 43 and a first spring 44 which are used for controlling the air inlet valve 41 to be stopped, when air is introduced, the first spring 44 is compressed, the first valve core 43 is separated from a valve port of the air inlet valve 41, and air inlet is realized; the exhaust valve 42 comprises a second valve core 45 and a second spring 46 for controlling the exhaust valve 42 to be stopped, when exhausting, the second spring 46 is compressed, and the second valve core is separated from the valve port of the air outlet valve, so that the exhaust is realized;
the pressure regulating hole and the pressure regulating valve 40 can be connected through a hose, the pressure in the oil storage ring groove 16 can be changed in the movement process of the lubricating oil liquid storage cylinder, the pressure in the oil storage ring groove 16 can be regulated through the arrangement of the pressure regulating valve 40, namely when the pressure in the oil storage ring groove 16 is overlarge, the second valve core 45 is pushed open by air pressure to realize air exhaust, and the second valve core is reset through the second spring 46 after the pressure is reduced; when the pressure in the oil storage ring groove 16 is too small, the first valve core 43 is jacked open by the external air pressure to realize air inlet, and then the second valve core is reset through the second spring 46; the air inlet valve 41 can be connected with a filter to ensure the cleanliness of air when entering; by providing the pressure regulating valve 40, excessive overflow of the lubricating oil due to excessive pressure in the oil storage ring groove 16 can be avoided.
The inlet valve 41 is further provided with a first adjusting screw 47 for adjusting the compression amount of the first spring 44, and the outlet valve is further provided with a second adjusting screw 48 for adjusting the compression amount of the second spring 46.
One end of the spring is connected with the corresponding valve core in an abutting mode, the other end of the spring is connected with the corresponding adjusting screw in an abutting mode, the corresponding adjusting screw is screwed or unscrewed, the compression amount of the corresponding spring is adjusted, the pressure of the air inlet valve 41 or the air outlet valve 42 when the air inlet valve or the air outlet valve is opened can be adjusted, and the lubricating oil can reach the most appropriate overflowing amount.
The driving system also comprises a PLC control unit, a second Y-shaped three-position four-way valve and a third Y-shaped three-position four-way valve;
the second Y-shaped three-position four-way valve comprises a second oil inlet P, a second working oil port A, a second working oil port B and a second oil return port T, the second hydraulic cylinder 11 comprises a second rod cavity 52 and a second rodless cavity 53, the second rodless cavity 53 is communicated with the second working oil port A through a fifth oil path 54, the second rod cavity 52 is communicated with the second working oil port B through a sixth oil path 55, and the oil supply pipeline 20 and the oil return pipeline 21 are both communicated with the second hydraulic cylinder 11 through the second Y-shaped three-position four-way valve;
the third Y-shaped three-position four-way valve comprises a third oil inlet P, a third working oil port A, a third working oil port B and a third oil return port T, the third hydraulic cylinder 13 comprises a third rod cavity 56 and a third rodless cavity 57, the third rodless cavity 57 is communicated with the third working oil port A through a seventh oil path 58, the third rod cavity 56 is communicated with the third working oil port B through an eighth oil path 59, and the oil supply pipeline 20 and the oil return pipeline 21 are both communicated with the third hydraulic cylinder 13 through the third Y-shaped three-position four-way valve;
the first hydraulic cylinder 3 is provided with a first travel switch, the second hydraulic cylinder 11 is provided with a second travel switch, the third hydraulic cylinder 13 is provided with a third travel switch, the first travel switch, the second travel switch and the third travel switch feed back detected signals to the PLC control unit, and the PLC control unit is used for controlling the first Y-shaped three-position four-way valve, the second Y-shaped three-position four-way valve and the third Y-shaped three-position four-way valve.
The travel switch is used for detecting the running position of the corresponding hydraulic cylinder, automatic control can be achieved by adopting the driving system, synchronous control of stamping action and self-lubricating action is achieved, efficiency is high, and forming effect is good.
A control method for a molding apparatus for a caliper piston, comprising the steps of:
firstly, feeding: the PLC control unit controls the first Y-shaped three-position four-way valve to be switched to the left position, hydraulic oil in the oil supply pipeline 20 enters the first rod cavity 23 from the first working oil port A, and the first hydraulic cylinder 3 drives the stamping rod 8 to ascend; the second Y-shaped three-position four-way valve is switched to the left position, the hydraulic oil in the oil supply pipeline 20 enters the second rodless cavity 53 through the second working oil port a, and the second hydraulic cylinder 11 drives the ejector rod 10 to eject; the third Y-shaped three-position four-way valve is switched to the right position, the hydraulic oil in the oil supply pipeline 20 enters the third rod cavity 56 from the third working oil port B, and the third hydraulic cylinder 13 drives the material blocking rod 12 to retract; when the first stroke switch, the second stroke switch and the third stroke switch are detected in place, the thin plate raw material to be punched and formed is placed on the rough drawing die 4 through the manipulator;
secondly, stamping: the first Y-shaped three-position four-way valve is switched to the right position, hydraulic oil in the oil supply pipeline 20 enters the first rodless cavity 24 from the first working oil port B, the hydraulic oil in the first rod cavity 23 flows back to the oil return pipeline 21 from the first working oil hole A, the first hydraulic cylinder 3 drives the stamping rod 8 to descend and stamp, meanwhile, part of the hydraulic oil enters the fourth rodless cavity 28 from the throttle valve 31, lubricating oil in the fourth rod cavity 27 is extruded into the oil storage ring groove 16, the pressure in the oil storage ring groove 16 is increased, and the lubricating oil overflows on the inner wall of the inner die body 15;
thirdly, blanking: when the first travel switch detects that the first hydraulic cylinder 3 descends to the right position in the first step and delays for one second, the PLC control unit controls the first Y-shaped three-position four-way valve to be switched to the left position, the first hydraulic cylinder 3 drives the stamping rod 8 to ascend, and the stamping rod is ensured to be formed in place in a delaying mode; meanwhile, the PLC control unit controls the second Y-shaped three-position four-way valve to be switched to the right position and controls the third Y-shaped three-position four-way valve to be switched to the left position, the material blocking rod 12 is ejected out to realize axial material blocking, and the material ejecting rod 10 retracts; when the ejector rod 10 retracts and the second travel switch detects that the ejector rod is in place, the second Y-shaped three-position four-way valve is switched to the left position, the ejector rod 10 is ejected again, and the punched and stretched blank is ejected from the discharge hole 9;
fourthly, when the second travel switch is detected in place in the third step, the manipulator puts the blank on the rough drawing die 4 onto the secondary drawing die 5, puts the blank on the secondary drawing die 5 onto the tertiary drawing die 6, puts the blank on the tertiary drawing die 6 onto the quartic drawing die 7, blanks on the quartic drawing die 7, and returns to the first step to repeat the first step to the seventh step.
By the control method, automatic control can be realized, synchronous control of stamping action and self-lubricating action is realized, efficiency is high, and forming quality is good.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (4)
1. The utility model provides a former for calliper piston, includes forming device and actuating system, and forming device includes the frame, goes up mould (1) and lower mould (2), its characterized in that: the top of the rack is provided with a first hydraulic cylinder (3) for driving an upper die (1) to lift, a plurality of groups of dies which are sequentially arranged side by side are arranged on a lower die (2), the dies comprise four groups of rough drawing dies (4), secondary drawing dies (5), tertiary drawing dies (6) and quartic drawing dies (7) which are sequentially arranged, punching cavities are formed in the dies, a plurality of punching rods (8) which are right opposite to the punching cavities are arranged on the upper die (1), the periphery of the bottom end of each die is further provided with a symmetrically arranged discharge port (9) and a material ejection port, the discharge port (9) and the material ejection port are both communicated with the punching cavities, material ejection rods (10) are arranged in the material ejection ports, a second hydraulic cylinder (11) for driving the material ejection rods (10) to translate is arranged on the rack, material stop rods (12) are further arranged on the dies, and a third hydraulic cylinder (13) for driving the material stop rods (12) to translate is arranged on the rack;
the die comprises an outer die body (14) and an inner die body (15), the outer die body (14) is sleeved on the outer side of the inner die body (15), the inner die body (15) is formed by sintering iron-based powder through powder metallurgy, an oil storage ring groove (16) is formed in the outer wall of the inner die body (15), an oil filling hole (17) communicated with the oil storage ring groove (16) is formed in the outer die body (14), a pressing ring (18) used for axially fixing the inner die body (15) is arranged at the top of the outer die body (14), a plurality of micro-pore structures are arranged on the inner die body (15), and the micro-pore structures form an oil passage communicated with the oil storage ring groove and the inner wall of the inner die body (15);
the top of a stamping cavity of the rough drawing die (4) is provided with a tapered hole, and the rough drawing die (4) is used for stamping the piston sheet raw material into a blank;
the secondary stretching die (5) is used for carrying out secondary stretching on the blank stretched by the rough stretching die (4);
the third stretching die (6) is used for stretching the blank stretched by the second stretching die (5) for three times;
the fourth drawing die (7) is used for drawing the blank drawn by the third drawing die (6) for four times;
the driving system comprises an oil supply pipeline (20), an oil return pipeline (21) and a first Y-shaped three-position four-way valve (22), the first Y-shaped three-position four-way valve comprises a first oil inlet P, a first working oil port A, a first working oil port B and a first oil return port T, the first hydraulic cylinder (3) comprises a first rod cavity (23) and a first rod cavity (24), the first rod cavity (23) is communicated with the first working oil port A through a first oil way (25), the first rod cavity (24) is communicated with the first working oil port B through a second oil way (26), and the oil supply pipeline (20) and the oil return pipeline (21) are communicated with the first hydraulic cylinder (3) through the first Y-shaped three-position four-way valve;
the driving system further comprises a lubricating oil liquid storage cylinder, the lubricating oil liquid storage cylinder comprises a fourth rod cavity (27) and a fourth rodless cavity (28), a return spring is arranged in the fourth rod cavity (27), lubricating oil is filled in the fourth rod cavity (27), a third oil way (29) used for lubricating oil to enter and exit is further arranged on the fourth rod cavity (27), the third oil way (29) is communicated with the oil filling hole (17), a fourth oil way (30) used for hydraulic oil to enter and exit is arranged on the fourth rodless cavity (28), the fourth oil way (30) is connected onto the second oil way (26), and a throttle valve (31) is connected onto the fourth oil way (30).
2. A molding apparatus for a caliper piston according to claim 1, wherein: the outer die body (14) is further provided with a pressure regulating hole communicated with the oil storage ring groove (16), the pressure regulating hole is connected with a pressure regulating valve (40), the pressure regulating valve (40) comprises an air inlet valve (41) and an air outlet valve (42) which are arranged in parallel, the air inlet valve (41) comprises a first valve core (43) and a first spring (44) which are used for controlling the opening and closing of the air inlet valve (41), when air is introduced, the first spring (44) is compressed, the first valve core (43) is separated from a valve port of the air inlet valve (41), and air inlet is realized; the exhaust valve (42) comprises a second valve core (45) and a second spring (46) for controlling the exhaust valve (42) to be closed, when the exhaust valve is exhausted, the second spring (46) is compressed, and the second valve core is separated from the valve port of the exhaust valve, so that the exhaust is realized;
the air inlet valve (41) is also provided with a first adjusting screw (47) for adjusting the compression amount of the first spring (44), and the air outlet valve is also provided with a second adjusting screw (48) for adjusting the compression amount of the second spring (46).
3. A molding apparatus for a caliper piston according to claim 1, wherein: the driving system also comprises a PLC control unit, a second Y-shaped three-position four-way valve (50) and a third Y-shaped three-position four-way valve (51);
the second Y-shaped three-position four-way valve comprises a second oil inlet P, a second working oil port A, a second working oil port B and a second oil return port T, the second hydraulic cylinder (11) comprises a second rod cavity (52) and a second rodless cavity (53), the second rodless cavity (53) is communicated with the second working oil port A through a fifth oil way (54), the second rod cavity (52) is communicated with the second working oil port B through a sixth oil way (55), and the oil supply pipeline (20) and the oil return pipeline (21) are both communicated with the second hydraulic cylinder (11) through the second Y-shaped three-position four-way valve;
the third Y-shaped three-position four-way valve comprises a third oil inlet P, a third working oil port A, a third working oil port B and a third oil return port T, the third hydraulic cylinder (13) comprises a third rod cavity (56) and a third rodless cavity (57), the third rodless cavity (57) is communicated with the third working oil port A through a seventh oil path (58), the third rod cavity (56) is communicated with the third working oil port B through an eighth oil path (59), and the oil supply pipeline (20) and the oil return pipeline (21) are both communicated with the third hydraulic cylinder (13) through the third Y-shaped three-position four-way valve;
the first hydraulic cylinder (3) is provided with a first travel switch, the second hydraulic cylinder (11) is provided with a second travel switch, the third hydraulic cylinder (13) is provided with a third travel switch, the first travel switch, the second travel switch and the third travel switch feed back a detected signal to the PLC control unit, and the PLC control unit is used for controlling the first Y-shaped three-position four-way valve, the second Y-shaped three-position four-way valve and the third Y-shaped three-position four-way valve.
4. A control method applied to the molding apparatus for a caliper piston according to claim 3, characterized in that: the method comprises the following steps:
firstly, feeding: the PLC control unit controls the first Y-shaped three-position four-way valve to be switched to the left position, hydraulic oil in the oil supply pipeline (20) enters the first rod cavity (23) from the first working oil port A, and the first hydraulic cylinder (3) drives the stamping rod (8) to ascend; the second Y-shaped three-position four-way valve is switched to the left position, hydraulic oil in the oil supply pipeline (20) enters the second rodless cavity (53) from the second working oil port A, and the second hydraulic cylinder (11) drives the ejector rod (10) to eject; the third Y-shaped three-position four-way valve is switched to the right position, hydraulic oil in the oil supply pipeline (20) enters a third rod cavity (56) from a third working oil port B, and a third hydraulic cylinder (13) drives a material blocking rod (12) to retreat; when the first stroke switch, the second stroke switch and the third stroke switch are detected in place, the thin plate raw material to be punched and formed is placed on the rough drawing die (4) through the manipulator;
secondly, stamping: the first Y-shaped three-position four-way valve is switched to the right position, hydraulic oil in the oil supply pipeline (20) enters a first rodless cavity (24) from a first working oil port B, the hydraulic oil in a first rod cavity (23) flows back to an oil return pipeline (21) from a first working oil hole A, a first hydraulic cylinder (3) drives a stamping rod (8) to descend and stamp, meanwhile, part of hydraulic oil enters a fourth rodless cavity (28) from a throttle valve (31), lubricating oil in the fourth rod cavity (27) is extruded into an oil storage ring groove (16), the pressure in the oil storage ring groove (16) is increased, and the lubricating oil overflows on the inner wall of an inner die body (15);
thirdly, blanking: when the first travel switch detects that the first hydraulic cylinder (3) descends to the right position in the first step and delays for one second, the PLC control unit controls the first Y-shaped three-position four-way valve to be switched to the left position, and the first hydraulic cylinder (3) drives the stamping rod (8) to ascend; meanwhile, the PLC control unit controls the second Y-shaped three-position four-way valve to be switched to the right position and controls the third Y-shaped three-position four-way valve to be switched to the left position, the material blocking rod (12) is ejected out to realize axial material blocking, and the material ejecting rod (10) retracts; when the ejector rod (10) retracts and the second travel switch detects that the ejector rod is in place, the second Y-shaped three-position four-way valve is switched to the left position, the ejector rod (10) is ejected again, and the punched and stretched blank is ejected out from the discharge hole (9);
fourthly, when the second travel switch in the third step is detected in place, the manipulator puts the blank on the rough drawing die (4) on the secondary drawing die (5), puts the blank on the secondary drawing die (5) on the tertiary drawing die (6), puts the blank on the tertiary drawing die (6) on the quartic drawing die (7), and feeds the blank on the quartic drawing die (7), and meanwhile, the first step is returned, and the first step to the seventh step are repeated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010361949.XA CN111531011B (en) | 2020-04-30 | 2020-04-30 | Molding equipment for caliper piston and control method thereof |
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| CN202010361949.XA CN111531011B (en) | 2020-04-30 | 2020-04-30 | Molding equipment for caliper piston and control method thereof |
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| CN111531011B true CN111531011B (en) | 2021-10-26 |
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| CN115647173B (en) * | 2022-12-26 | 2023-03-10 | 江苏垒博汽配制造有限公司 | Machining die of torque regulator |
| CN116274597B (en) * | 2023-05-22 | 2023-07-21 | 常州忠正汽车零部件有限公司 | Stamping forming equipment for automobile seat frame |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165150A (en) * | 1981-04-06 | 1982-10-12 | Daido Steel Co Ltd | Plastic working method |
| CN201921926U (en) * | 2010-12-09 | 2011-08-10 | 扬州捷迈锻压机械有限公司 | Slider center drawing device with double-proportion accurate adjusting function |
| CN102441599A (en) * | 2011-11-25 | 2012-05-09 | 永康市加效焊接自动化设备有限公司 | Multi-station and multi-time hydraulic drawing press and processing method thereof |
| CN106881391A (en) * | 2017-04-14 | 2017-06-23 | 扬力集团股份有限公司 | A kind of big stroke Multi-position drawing forcing press |
| CN110355253A (en) * | 2019-08-28 | 2019-10-22 | 东莞市鼎通精密五金股份有限公司 | A kind of die device for saving punching oil |
-
2020
- 2020-04-30 CN CN202010361949.XA patent/CN111531011B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165150A (en) * | 1981-04-06 | 1982-10-12 | Daido Steel Co Ltd | Plastic working method |
| CN201921926U (en) * | 2010-12-09 | 2011-08-10 | 扬州捷迈锻压机械有限公司 | Slider center drawing device with double-proportion accurate adjusting function |
| CN102441599A (en) * | 2011-11-25 | 2012-05-09 | 永康市加效焊接自动化设备有限公司 | Multi-station and multi-time hydraulic drawing press and processing method thereof |
| CN106881391A (en) * | 2017-04-14 | 2017-06-23 | 扬力集团股份有限公司 | A kind of big stroke Multi-position drawing forcing press |
| CN110355253A (en) * | 2019-08-28 | 2019-10-22 | 东莞市鼎通精密五金股份有限公司 | A kind of die device for saving punching oil |
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