CN109317572B - Cold-state frequency modulation amplitude modulation axial forming hydraulic press production line - Google Patents
Cold-state frequency modulation amplitude modulation axial forming hydraulic press production line Download PDFInfo
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- CN109317572B CN109317572B CN201811171676.1A CN201811171676A CN109317572B CN 109317572 B CN109317572 B CN 109317572B CN 201811171676 A CN201811171676 A CN 201811171676A CN 109317572 B CN109317572 B CN 109317572B
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- 238000003825 pressing Methods 0.000 claims abstract description 10
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- 239000000463 material Substances 0.000 abstract description 5
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 11
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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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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Abstract
The invention discloses a cold-state frequency and amplitude modulation axial forming hydraulic press production line which comprises a host, a pressure lever mechanism, an upper die, a lower die and a workpiece clamping mechanism, wherein the host is connected with the upper die through a pressure lever mechanism; the pressure lever mechanism is fixed on the servo vibration cylinder and used for positioning a workpiece; the workpiece clamping mechanism is fixed on the fixed workbench and used for clamping a workpiece; the upper die is fixed on the vibration sliding table, and the lower die is fixed on the fixed workbench and used for pressing workpieces. The invention adopts the frequency modulation method axial forming principle, and superimposes a swing on the conventional forward movement, namely, the forward movement and the vibration are carried out simultaneously, thereby greatly reducing the axial force in the forming process. In each return movement of the oscillation, the die is actually detached from the workpiece, the stress in the material is released and the lubricating oil is constantly replenished, so that the lubricating film is improved and the axial force is reduced by about 50%.
Description
Technical Field
The invention relates to the field of hydraulic press equipment, in particular to a cold-state frequency and amplitude modulation axial forming hydraulic press production line.
Background
In the industrial fields of aerospace, national defense, nuclear energy, automobiles and the like, in order to realize special functions, the design of parts has special requirements on material selection, structural design, comprehensive mechanical properties and the like, and the possibility of the existing process method and manufacturing technology must be considered when the structure of the parts is designed, namely, the requirement of structural manufacturability is met, so that the structure of the parts is unreasonable; for the structural design which needs to be met, the limit of the traditional process method is adopted, the processing is difficult, the processing precision is not easy to guarantee, the processing efficiency is low, the raw material waste is serious, the energy and other consumption in the processing process is high, and the processing cost is overhigh.
Disclosure of Invention
The invention aims to provide a cold-state frequency and amplitude modulation axial forming hydraulic press production line, which solves the technical problem.
The technical scheme adopted by the invention for solving the technical problems is as follows: a cold-state frequency and amplitude modulation axial forming hydraulic press production line comprises a host, a pressure lever mechanism, an upper die, a lower die and a workpiece clamping mechanism;
the main machine comprises a machine body, a servo vibration cylinder, double guide columns, a vibration sliding table and a fixed working table; the servo vibration cylinder is arranged on the lower surface of an upper cross beam of the machine body, the vibration sliding table is fixed at the lower end of a piston rod of the servo vibration cylinder, the double guide columns are arranged at the lower end of the upper cross beam of the machine body and positioned at the left side and the right side of the servo vibration cylinder, and the vibration sliding table is guided through the double guide columns; the fixed workbench is fixed on the upper surface of the lower cross beam of the machine body and is positioned at the lower part of the vibration sliding table;
the pressure lever mechanism is fixed on the servo vibration cylinder and used for positioning a workpiece;
the workpiece clamping mechanism is fixed on the fixed workbench and used for clamping a workpiece;
the upper die is fixed on the vibration sliding table, and the lower die is fixed on the fixed workbench and used for pressing workpieces.
Optionally, the fuselage includes entablature, stand and bottom end rail, entablature and bottom end rail are fixed in respectively the upper end and the lower extreme of stand, and the perpendicular to the stand.
Optionally, the pressure lever mechanism comprises a driving oil cylinder, a connecting nut, a support frame, an adjusting nut, a cushion block, a connecting flange, a pressure lever, a guide sleeve and a support pad;
the driving oil cylinder is arranged on the supporting frame, the supporting frame is connected to the servo vibration cylinder through a cushion block and a connecting flange, and a piston rod of the driving oil cylinder is connected with the pressing rod through a connecting nut; a first through hole is formed in a cylinder body of the servo vibration cylinder, a guide sleeve and a supporting pad are arranged in the first through hole, the guide sleeve is used for guiding the pressing rod, and one end of the guide sleeve is in contact with one end of the supporting pad; the outer surface of the pressure lever is provided with an external thread, and the adjusting nut is arranged on the pressure lever, matched with the external thread of the pressure lever and used for limiting the movement stroke of the pressure lever.
Optionally, the upper die includes a thimble, a guide ring, a forming die and a connector; the thimble is arranged at the lower end of the pressure rod; the guide ring is arranged in the vibration sliding table and used for guiding the ejector pin, and the forming die is arranged at the lower end of the vibration sliding table through a connecting body.
Optionally, the lower die comprises a workpiece positioning seat, a positioning base, a spring fixing shaft, a spring, a fixing ring and a fixing sleeve; the base is fixed on the fixed workbench, a second through hole is formed in the base along the axis direction of the base, a fixed sleeve is arranged in the second through hole and is positioned at the lower end of the second through hole, a baffle is formed at the upper end of the fixed sleeve, and a third through hole is formed in the middle of the baffle; a columnar bulge is formed at the lower end of the workpiece positioning seat, and the columnar bulge is inserted into the second through hole, so that the workpiece positioning seat is positioned at the upper end of the second through hole; a spring fixing shaft is fixed at the lower end of the columnar bulge; the spring fixing shaft is sleeved with a spring, the lower end of the spring fixing shaft penetrates through the baffle and is located in the fixing sleeve, a fixing ring is fixed at the lower end of the spring fixing shaft, the diameter of the fixing ring is larger than that of the third through hole, and the fixing ring can slide along the inner wall surface of the second through hole.
Optionally, the workpiece clamping mechanism comprises a left clamping jaw, a right clamping jaw, a clamping cylinder and a connecting base; two clamping jaws are installed on the left side and the right side of the clamping cylinder, the clamping cylinder is installed on the connecting base, and the connecting base is installed on the fixed workbench and is arranged on the rear side of the lower die.
Optionally, the production line of the cold-state frequency-modulation and amplitude-modulation axial forming hydraulic machine further comprises an automatic loading and unloading mechanism arranged on the side of the main machine and used for loading and unloading workpieces;
the automatic loading and unloading mechanism comprises a loading system, a positioning system, an operating system and an unloading system; the feeding system is used for conveying the workpiece to the vicinity of the main machine; the positioning system is used for positioning the workpiece on the feeding system; the operation system is used for conveying the workpiece from the feeding system to the lower die and conveying the workpiece from the lower die to the discharging system; the blanking system is used for blanking the workpiece.
Optionally, the feeding system comprises two plate-type rollers, a bearing, a speed reducer, a coupling, a connecting frame, two roller shafts, a bearing cover, a supporting frame, a flat conveying chain and a motor;
one plate type roller is connected with one roller shaft through a key to form a plate type roller assembly; the two plate type roller assemblies are respectively positioned at the front end and the rear end of the support frame; two ends of the roller shaft are respectively and rotatably supported on the support frame through bearings, and bearing covers are arranged outside the bearings;
the motor is arranged on the connecting frame and is in transmission connection with the speed reducer; the speed reducer is in transmission connection with a roller shaft positioned at the front end through a coupler, and the flat conveying chain is arranged on the two plate type rollers;
the structure of the blanking system is the same as that of the feeding system.
Optionally, the positioning system comprises a tail end positioning block, a secondary positioning block, an initial positioning block, three cylinders and a connecting bracket; the three cylinders are all arranged on the connecting support and are respectively connected with the tail end positioning block, the secondary positioning block and the initial positioning block, the secondary positioning block and the tail end positioning block are sequentially arranged along the feeding direction; the connecting bracket is arranged on the front side of the press and on the left side of the feeding system.
Optionally, the operating system comprises four clamping jaws, four rotating cylinders, a support frame, a horizontal moving sliding table, a gear, a rack, a speed reducer, a servo motor, a horizontal linear guide rail, a movable base, a driving cylinder, a roller groove support, four roller groups, a discharging rotating cylinder connecting seat, a vertical linear guide rail, a support, a feeding rotating cylinder connecting seat and a vertical sliding table;
the four clamping jaws are respectively fixed on four output shafts of the rotary air cylinder, wherein two clamping jaws and the rotary air cylinder form a feeding clamping jaw, the other two clamping jaws and the rotary air cylinder form a discharging clamping jaw, the feeding clamping jaw is arranged on a connecting seat of the feeding rotary air cylinder, the discharging clamping jaw is arranged on a connecting seat of the discharging rotary air cylinder, the connecting seat of the feeding rotary air cylinder and the connecting seat of the discharging rotary air cylinder are fixed on a vertical sliding table, the side part of the vertical sliding table is fixedly connected with a sliding block which can be slidably arranged on the vertical linear guide rail, the vertical linear guide rail is fixed on a bracket and is vertically arranged, the bracket is connected with a horizontal moving sliding table, a driving air cylinder and the sliding block which can be slidably arranged on the horizontal linear guide rail are arranged on the horizontal moving sliding table, the horizontal linear guide rail is connected, the roller groove bracket is fixed on the machine body workbench; servo motor and reduction gear transmission are connected, the reduction gear is connected with gear drive, servo motor fixes on can moving the base, and the rack is installed on horizontal migration slip table to with gear engagement.
The invention has the following beneficial effects: the invention adopts the frequency modulation method axial forming principle, and superimposes a swing on the conventional forward movement, namely, the forward movement and the vibration are carried out simultaneously, thereby greatly reducing the axial force in the forming process. In each return movement of the oscillation, the die is actually detached from the workpiece, the stress in the material is released and the lubricating oil is constantly replenished, so that the lubricating film is improved and the axial force is reduced by about 50%.
Drawings
FIG. 1 is a schematic structural diagram of a cold-state FM-AM axial forming hydraulic press production line.
FIG. 2 is a schematic structural diagram of a cold-state FM-AM axial forming hydraulic press production line of the present invention.
Fig. 3 is a schematic structural view of the plunger mechanism of the present invention.
Fig. 4 is a schematic structural view of an upper die of the present invention.
Fig. 5 is a left side schematic view of the clamping mechanism and lower die of the present invention.
Fig. 6 is a schematic top view of the clamping mechanism and lower die of the present invention.
Fig. 7 is a schematic top view of the automatic loading and unloading mechanism of the present invention.
Fig. 8 is a schematic front view of the automatic loading and unloading mechanism of the present invention.
Detailed Description
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a cold fm/am axial forming hydraulic press production line, which is used for processing internal and external splines, internal and external gears, thin-wall internal and external splines (gears), and blind holes internal and external splines (gears), and includes: the automatic feeding and discharging device comprises a host machine 2, a pressure lever mechanism 1, an upper die 5, a lower die 10, a workpiece clamping mechanism 9, an automatic feeding and discharging mechanism 8 and a control system.
The main machine is a hydraulic machine which comprises a machine body 2.1, a servo vibration cylinder 2.2, a double guide column 2.3, a vibration sliding table 2.4 and a fixed working table 2.5.
The fuselage 2.1 comprises an upper beam 2.1.1, an upright column 2.1.2 and a lower beam 2.1.3, the fuselage is welded into an integral frame structure, specifically, the upper beam 2.1.1 and the lower beam 2.1.2 are respectively fixed at the upper end and the lower end of the upright column and are perpendicular to the upright column 2.1.2, so that the fuselage 2.1 is an offset fuselage, the bearing position of the fuselage is arranged at the right side 1/3 of the fuselage, and the fuselage is stressed asymmetrically left and right and stressed symmetrically front and back.
The servo vibration cylinder 2.2 is arranged on the lower surface of an upper cross beam 2.1.1 of the machine body 2.1, the vibration sliding table 2.4 is fixed at the lower end of a piston rod of the servo vibration cylinder 2.2, the double guide pillars 2.3 are arranged at the lower end of the upper cross beam 2.1.1 of the machine body and are positioned at the left side and the right side of the servo vibration cylinder 2.2, and the vibration sliding table 2.4 is guided through the double guide pillars 2.3. The servo vibration jar 2.2 drives the vibration slip table 2.4 during up-and-down motion and realizes up-and-down motion, leads through two guide pillar 2.3 simultaneously, and the skew of slip table among the restraint motion process realizes the guide function, ensures the machined part precision.
The fixed workbench 2.5 is fixed on the upper surface of the lower beam 2.1.3 and is positioned at the lower part of the vibration sliding table 2.4.
Referring to fig. 3, the pressing rod mechanism 1 is fixed on the servo vibration cylinder and used for positioning a workpiece; specifically, the pressure bar mechanism 1 comprises a driving oil cylinder 1.1, a connecting nut 1.2, a supporting frame 1.3, an adjusting nut 1.4, a cushion block 1.5, a connecting flange 1.6, a pressure bar 1.7, a guide sleeve 1.8 and a supporting pad 1.9.
The driving oil cylinder 1.1 is arranged on a support frame 1.3, the support frame 1.3 is connected with the servo vibration cylinder 2.2 through a cushion block 1.5 and a connecting flange 1.6, and a piston rod of the driving oil cylinder 1.1 is connected with a pressure rod 1.7 through a connecting nut 1.2; first through-hole has been seted up on servo vibration jar 2.2's the cylinder body, be provided with uide bushing 1.8 and supporting pad 1.9 in the first through-hole, uide bushing 1.8 is used for leading depression bar 1.7, the one end of uide bushing 1.8 and the one end contact of supporting pad 1.9. An external thread is formed on the outer surface of the pressure lever 1.7, and the adjusting nut 1.4 is arranged on the pressure lever 1.7 and matched with the external thread of the pressure lever 1.7; in this embodiment, the adjusting nut is located above the cushion block 1.5, so as to limit the movement stroke of the pressure rod 1.7 through the adjusting nut 1.4, that is, adjust the stroke of the driving oil cylinder 1.1 and play a role of fixing the stopper. When the driving oil cylinder 1.1 is communicated with an oil way, the functions of positioning, pressing and loosening the workpiece can be realized through the action of the pressing rod 1.7 and the thimble 5.1.
Referring to fig. 4, the upper mold 5 includes a thimble 5.1, a guide ring 5.2, a forming mold 5.3, and a connecting body 5.4. The ejector pin 5.1 is installed at the lower end of the pressure rod 1.7, the guide ring 5.2 is arranged in the vibration sliding table 2.4 and used for guiding the ejector pin 5.1, and the forming die 5.3 is arranged at the lower end of the vibration sliding table 2.4 through the connecting body 5.4. When the forming machine works, the ejector pin 5.1 is driven by the driving oil cylinder 1.1 to clamp a workpiece, and the forming die 5.3 moves up and down along with the servo vibration cylinder 2.2 and the vibration sliding table 2.4, so that the forming process is realized.
Referring to fig. 5 and 6, the lower die 10 includes a workpiece positioning seat 10.1, a positioning base 10.2, a spring fixing shaft 10.3, a spring 10.4, a fixing ring 10.5, a fixing sleeve 10.6, and a baffle 10.7. The base 10.2 is fixed on the fixed workbench 2.5, a second through hole is formed in the base 10.2 along the axis direction, a fixed sleeve 10.6 is arranged in the second through hole, the fixed sleeve 10.6 is positioned at the lower end of the second through hole, a baffle 10.7 is formed at the upper end of the fixed sleeve 10.6, and a third through hole is formed in the middle of the baffle; a columnar bulge is formed at the lower end of the workpiece positioning seat 10.1, and the columnar bulge is inserted into the second through hole, so that the workpiece positioning seat 10.1 is positioned at the upper end of the second through hole; a spring fixing shaft 10.3 is fixed at the lower end of the columnar bulge; a spring 10.4 is sleeved on the spring fixing shaft 10.3, the lower end of the spring fixing shaft 10.3 penetrates through the baffle 10.7 and is positioned in the fixing sleeve 10.6, a fixing ring 10.5 is fixed at the lower end of the spring fixing shaft 10.3, the diameter of the fixing ring 10.5 is larger than that of the third through hole, and the fixing ring 10.5 can slide along the inner wall surface of the second through hole, so that two ends of the spring are respectively propped against the workpiece positioning seat 10.1 and the baffle 10.7; therefore, the lower die 10 can realize the up-and-down movement of the workpiece and the flexible positioning of the workpiece by installing the compression spring.
Referring to fig. 5 and 6, the workpiece clamping mechanism 9 includes a left clamping jaw 9.1.1, a right clamping jaw 9.1.2, a clamping cylinder 9.2, and a connecting base 9.3. The left clamping jaw 9.1.1 and the right clamping jaw 9.1.2 are arranged on the left side and the right side of the clamping cylinder 9.2, the clamping cylinder 9.2 is arranged on the connecting base 9.3, the connecting base 9.3 is arranged on the fixed workbench 2.5 and is arranged on the rear side of the lower die 10, and the clamping and the loosening of the workpiece 0 can be realized by controlling the movement of the clamping cylinder 9.2.
Referring to fig. 7 and 8, the automatic loading and unloading mechanism 8 includes a loading system 8.1, a positioning system 8.2, an operating system 8.3 and an unloading system 8.4.
The feeding system 8.1 is used for conveying workpieces to the vicinity of the main machine; the positioning system 8.2 is used for positioning the workpiece on the feeding system 8.1; the operating system 8.3 is used for conveying the workpieces from the feeding system 8.1 to the lower die and conveying the workpieces from the lower die to the discharging system 8.4; the blanking system 8.4 is used for blanking workpieces.
The feeding system 8.1 comprises two plate type rollers 8.1.1, a bearing 8.1.2, a speed reducer 8.1.3, a coupler 8.1.4, a connecting frame 8.1.5, two roller shafts 8.1.6, a bearing cover 8.1.7, a supporting frame 8.1.8, a flat plate conveying chain 8.1.9 and a motor 8.1.10.
A plate type roller 8.1.1 is connected with a roller shaft 8.1.6 through a key to form a plate type roller assembly, so that when the roller shaft rotates, the plate type roller assembly can be driven to rotate, and the two plate type roller assemblies are respectively positioned at the front end and the rear end of the support frame; at this time, both ends of the roller shaft 8.1.6 are rotatably supported on the supporting frames by bearings 8.1.2, and a bearing cover 8.1.7 is provided outside the bearings 8.1.2.
The motor 8.1.10 is arranged on the connecting frame 8.1.5 and is in transmission connection with the speed reducer 8.1.3; the speed reducer 8.1.3 is in transmission connection with the roller shaft 8.1.6 at the front end through a coupler 8.1.4, and the flat conveying chain 8.1.9 is installed on the two plate type rollers 8.1.1, namely the plate type roller 8.1.1 at the front end is in transmission connection with the plate type roller 8.1.1 at the rear end through the flat conveying chain 8.1.9, so that a closed flat conveying chain is formed.
When the motor 8.1.10 drives the speed reducer 8.1.3 to move, the flat plate conveying chain 8.1.9 conveys the workpiece along the guiding direction through the transmission of the shaft coupling 8.1.4, the roller shaft 8.1.6 at the front end, the plate roller 8.1.1 at the front end and the plate roller 8.1.1 at the rear end.
The structure and the transmission principle of the blanking system 8.4 are basically the same as those of the feeding system 8.1.
The positioning system 8.2 comprises a tail end positioning block 8.2.1, a secondary positioning block 8.2.2, an initial positioning block 8.2.3, three cylinders 8.2.4 and a connecting bracket 8.2.5. The three cylinders 8.2.4 are all arranged on the connecting bracket 8.2.5 and are respectively connected with the tail end positioning block 8.2.1, the secondary positioning block 8.2.2 and the initial positioning block 8.2.3, and the initial positioning block 8.2.3, the secondary positioning block 8.2.2 and the tail end positioning block 8.2.1 are sequentially arranged along the feeding direction; the connecting support 8.2.5 is arranged on the front side of the press, the left side of the feeding system and the three cylinders 8.2.4 are all provided with magnetic switches. When the cylinder is in work, the workpiece can be positioned at a required position, and the operating system 8.3 can grab and take materials conveniently.
The operating system 8.3 comprises four clamping jaws 8.3.1, four rotating cylinders 8.3.2, a support frame 8.3.3, a horizontal moving sliding table 8.3.4, a gear 8.3.5, a rack 8.3.6, a speed reducer 8.3.7, a servo motor 8.3.8, a horizontal linear guide rail 8.3.9, a movable base 8.3.10, a driving cylinder 8.3.11, a roller groove bracket 8.3.12, a four roller set 8.3.13, a blanking rotating cylinder connecting seat 8.3.14, a vertical linear guide rail 8.3.15, a bracket 8.3.16, a feeding rotating cylinder connecting seat 8.3.17 and a vertical sliding table 8.3.18.
Four clamping jaws 8.3.1 are respectively fixed on output shafts of four rotary cylinders 8.3.2, wherein two clamping jaws and the rotary cylinders form a feeding clamping jaw, the other two clamping jaws and the rotary cylinders form a discharging clamping jaw, the feeding clamping jaw is arranged on a feeding rotary cylinder connecting seat 8.3.17, the discharging clamping jaw is arranged on a discharging rotary cylinder connecting seat 8.3.14, the feeding rotary cylinder connecting seat and the discharging rotary cylinder connecting seat are both fixed on a vertical sliding table 8.3.18, the side part of the vertical sliding table 8.3.18 is fixedly connected with a sliding block which is slidably arranged on the vertical linear guide track 8.3.15, the vertical linear guide track 8.3.15 is fixed on a bracket 8.3.16 and is vertically arranged, the bracket 8.3.16 is connected with a horizontal moving sliding table 8.3.4, a driving cylinder 8.3.11 and a sliding block which is slidably arranged on the horizontal linear guide track 8.3.9 are arranged on the horizontal moving sliding table 8.3.4, the horizontal linear guide track 8.3.9 is connected with a movable base 8.3.10, four roller groups 8.3.13 are, the four roller sets 8.3.13 can move back and forth along roller slot bracket 8.3.12, and roller slot bracket 8.3.12 is fixed on the fuselage worktable. The servo motor 8.3.8, the speed reducer 8.3.7 and the gear 8.3.5 are connected to form a driving assembly, the driving assembly is fixed on the movable base 8.3.10, the rack 8.3.6 is installed on the horizontal moving sliding table 8.3.4, and when the servo motor works, the gear 8.3.5 and the rack 8.3.6 are driven to realize the forward and backward movement of the horizontal moving sliding table 8.3.4. When the driving cylinder 8.3.11 works, the supporting frame 8.3.3 can be driven to move up and down, and the upper and lower material clamping jaw sets are driven to move up and down. When the feeding and discharging rotary cylinder works, the clamping, the loosening, the feeding and the discharging of the workpiece can be realized. The operating system 8.3 is pushed and pulled manually, and the operating system 8.3 can move back and forth, so that the operating system is convenient to disassemble and maintain.
The control system can comprise a hydraulic system 4, an electric system 3, a pneumatic system 6 and the like; the hydraulic system 4 is used for controlling each hydraulic cylinder (a servo vibration cylinder and a driving oil cylinder); the pneumatic system 6 is used for controlling each cylinder (a clamping cylinder, a cylinder of a positioning system, a rotating cylinder and a driving cylinder); and the electric system 3 comprises a high-frequency response servo valve, a displacement sensor, a controller and an industrial personal computer. The high-frequency response servo valve has short response time and is an important part for controlling the hydraulic system; the displacement sensor detects and monitors the position of the press; the controller has the advantages of quick acquisition and output time response time and strong processing capability; the industrial personal computer is associated with special software through a high-level language, can set technological parameters of the press, observe the running state of the press, check the pressure curve and the displacement curve of the press, call out the previous technological curve to check, and control the hydraulic system and the pneumatic system.
The controller can sample once in 500ms, the frequency response of the whole electric system is about 1ms, and the controller is fused with the whole hydraulic system, so that the accurate control of the production line is realized.
The invention relates to a cold-state frequency modulation and amplitude modulation axial forming hydraulic press production line, which comprises the following working procedures:
a workpiece is placed on a plate type chain wheel of a feeding system 8.1 by a manual or robot, the feeding system 8.1 and a discharging system 8.4 work, the feeding system 8.1 conveys the workpiece to the front side of a press, a recognition system of a positioning system 8.2 sends a signal, an operating system 8.3 moves forwards to a grabbing position, the operating system 8.3 clamps the workpiece at the moment, a signal switch sends a signal, the operating system 8.3 moves backwards to move the workpiece from the feeding position to the center of the press, meanwhile, the operating system 8.3 moves the workpiece which is pressed and positioned at the center of the press to the plate type chain wheel of the discharging system 8.4, the operating system 8.3 continues to work, the workpiece is placed on a lower die 10 to be positioned, the workpiece clamping mechanism 9 clamps the workpiece, a pressure bar mechanism 1 moves downwards, a thimble 5.1 tightly supports the workpiece, the workpiece clamping mechanism 9 loosens, a servo vibration cylinder 2.2 moves downwards, an upper die 5 realizes vibration and extrudes to a set position, the servo vibration cylinder 2, the pressure bar mechanism 1 and the thimble 5.1 return stroke, the workpiece is loosened, the operating system 8.3 clamps the workpiece to realize upward movement, and the operating system 8.3 moves forwards to a grabbing position to complete a working cycle.
The invention adopts a proportional servo control technology, can realize accurate control of pressure, speed, displacement and pressure relief, realizes the flexibility control of the pressed piece, has high precision and high efficiency, and ensures the quality of the pressed piece.
The sequence of the above embodiments is only for convenience of description and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A cold-state frequency and amplitude modulation axial forming hydraulic press production line is characterized by comprising a host, a pressure lever mechanism, an upper die, a lower die, a workpiece clamping mechanism and an automatic feeding and discharging mechanism;
the main machine comprises a machine body, a servo vibration cylinder, double guide columns, a vibration sliding table and a fixed working table; the servo vibration cylinder is arranged on the lower surface of an upper cross beam of the machine body, the vibration sliding table is fixed at the lower end of a piston rod of the servo vibration cylinder, the double guide columns are arranged at the lower end of the upper cross beam of the machine body and positioned at the left side and the right side of the servo vibration cylinder, and the vibration sliding table is guided through the double guide columns; the fixed workbench is fixed on the upper surface of the lower cross beam of the machine body and is positioned at the lower part of the vibration sliding table;
the pressure lever mechanism is fixed on the servo vibration cylinder and used for positioning a workpiece;
the workpiece clamping mechanism is fixed on the fixed workbench and used for clamping a workpiece;
the upper die is fixed on the vibration sliding table, and the lower die is fixed on the fixed workbench and used for pressing a workpiece;
the automatic loading and unloading mechanism is arranged on the side part of the main machine and used for loading and unloading workpieces;
the automatic loading and unloading mechanism comprises a loading system, a positioning system, an operating system and an unloading system; the feeding system is used for conveying the workpiece to the vicinity of the main machine; the positioning system is used for positioning the workpiece on the feeding system; the operation system is used for conveying the workpiece from the feeding system to the lower die and conveying the workpiece from the lower die to the discharging system; the blanking system is used for blanking a workpiece;
the feeding system comprises two plate type rollers, a bearing, a speed reducer, a coupling, a connecting frame, two roller shafts, a bearing cover, a supporting frame, a flat plate conveying chain and a motor;
one plate type roller is connected with one roller shaft through a key to form a plate type roller assembly; the two plate type roller assemblies are respectively positioned at the front end and the rear end of the support frame; two ends of the roller shaft are respectively and rotatably supported on the support frame through bearings, and bearing covers are arranged outside the bearings;
the motor is arranged on the connecting frame and is in transmission connection with the speed reducer; the speed reducer is in transmission connection with a roller shaft positioned at the front end through a coupler, and the flat conveying chain is arranged on the two plate type rollers;
the structure of the blanking system is the same as that of the feeding system;
the positioning system comprises a tail end positioning block, a secondary positioning block, an initial positioning block, three cylinders and a connecting support; the three cylinders are all arranged on the connecting support and are respectively connected with the tail end positioning block, the secondary positioning block and the initial positioning block, the secondary positioning block and the tail end positioning block are sequentially arranged along the feeding direction; the connecting bracket is arranged on the front side of the press and on the left side of the feeding system;
the operating system comprises four clamping jaws, four rotating cylinders, a support frame, a horizontal moving sliding table, a gear, a rack, a speed reducer, a servo motor, a horizontal linear guide rail, a movable base, a driving cylinder, a roller groove support, four roller groups, a blanking rotating cylinder connecting seat, a vertical linear guide rail, a support, a feeding rotating cylinder connecting seat and a vertical sliding table;
the four clamping jaws are respectively fixed on four output shafts of the rotary air cylinder, wherein two clamping jaws and the rotary air cylinder form a feeding clamping jaw, the other two clamping jaws and the rotary air cylinder form a discharging clamping jaw, the feeding clamping jaw is arranged on a connecting seat of the feeding rotary air cylinder, the discharging clamping jaw is arranged on a connecting seat of the discharging rotary air cylinder, the connecting seat of the feeding rotary air cylinder and the connecting seat of the discharging rotary air cylinder are fixed on a vertical sliding table, the side part of the vertical sliding table is fixedly connected with a sliding block which can be slidably arranged on the vertical linear guide rail, the vertical linear guide rail is fixed on a bracket and is vertically arranged, the bracket is connected with a horizontal moving sliding table, a driving air cylinder and the sliding block which can be slidably arranged on the horizontal linear guide rail are arranged on the horizontal moving sliding table, the horizontal linear guide rail is connected, the roller groove bracket is fixed on the machine body workbench; servo motor and reduction gear transmission are connected, the reduction gear is connected with gear drive, servo motor fixes on can moving the base, and the rack is installed on horizontal migration slip table to with gear engagement.
2. The cold FM-AM axial forming hydraulic press production line as claimed in claim 1, wherein said frame includes an upper beam, a column and a lower beam, said upper beam and said lower beam are fixed to the upper end and the lower end of said column respectively and perpendicular to said column.
3. The production line of the cold state frequency and amplitude modulation axial forming hydraulic machine as claimed in claim 1, wherein the pressure rod mechanism comprises a driving oil cylinder, a connecting nut, a supporting frame, an adjusting nut, a cushion block, a connecting flange, a pressure rod, a guide sleeve and a supporting pad;
the driving oil cylinder is arranged on the supporting frame, the supporting frame is connected to the servo vibration cylinder through a cushion block and a connecting flange, and a piston rod of the driving oil cylinder is connected with the pressing rod through a connecting nut; a first through hole is formed in a cylinder body of the servo vibration cylinder, a guide sleeve and a supporting pad are arranged in the first through hole, the guide sleeve is used for guiding the pressing rod, and one end of the guide sleeve is in contact with one end of the supporting pad; the outer surface of the pressure lever is provided with an external thread, and the adjusting nut is arranged on the pressure lever, matched with the external thread of the pressure lever and used for limiting the movement stroke of the pressure lever.
4. The cold FM-AM axial forming hydraulic press production line as claimed in claim 3, wherein said upper die comprises a thimble, a guide ring, a forming die and a connector; the thimble is arranged at the lower end of the pressure rod; the guide ring is arranged in the vibration sliding table and used for guiding the ejector pin, and the forming die is arranged at the lower end of the vibration sliding table through a connecting body.
5. The cold FM-AM axial forming hydraulic press production line as claimed in claim 4, wherein said lower die comprises a workpiece positioning seat, a positioning base, a spring fixing shaft, a spring, a fixing ring and a fixing sleeve; the base is fixed on the fixed workbench, a second through hole is formed in the base along the axis direction of the base, a fixed sleeve is arranged in the second through hole and is positioned at the lower end of the second through hole, a baffle is formed at the upper end of the fixed sleeve, and a third through hole is formed in the middle of the baffle; a columnar bulge is formed at the lower end of the workpiece positioning seat, and the columnar bulge is inserted into the second through hole, so that the workpiece positioning seat is positioned at the upper end of the second through hole; a spring fixing shaft is fixed at the lower end of the columnar bulge; the spring fixing shaft is sleeved with a spring, the lower end of the spring fixing shaft penetrates through the baffle and is located in the fixing sleeve, a fixing ring is fixed at the lower end of the spring fixing shaft, the diameter of the fixing ring is larger than that of the third through hole, and the fixing ring can slide along the inner wall surface of the second through hole.
6. The cold state frequency and amplitude modulation axial forming hydraulic press production line of claim 5, wherein the workpiece clamping mechanism comprises a left clamping jaw, a right clamping jaw, a clamping cylinder and a connecting base; two clamping jaws are installed on the left side and the right side of the clamping cylinder, the clamping cylinder is installed on the connecting base, and the connecting base is installed on the fixed workbench and is arranged on the rear side of the lower die.
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| CN201811171676.1A CN109317572B (en) | 2018-10-09 | 2018-10-09 | Cold-state frequency modulation amplitude modulation axial forming hydraulic press production line |
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| CN201811171676.1A CN109317572B (en) | 2018-10-09 | 2018-10-09 | Cold-state frequency modulation amplitude modulation axial forming hydraulic press production line |
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| CN109317572A CN109317572A (en) | 2019-02-12 |
| CN109317572B true CN109317572B (en) | 2020-05-15 |
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| JP2005199318A (en) * | 2004-01-16 | 2005-07-28 | Jfe Steel Kk | Press-forming method for metal plate |
| CN201333836Y (en) * | 2009-01-16 | 2009-10-28 | 格兰达技术（深圳）有限公司 | Double-rail material conveying device of IC material laser marking machine |
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| CN109317572A (en) | 2019-02-12 |
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Denomination of invention: Cold FM AM axial forming hydraulic press production line Effective date of registration: 20211224 Granted publication date: 20200515 Pledgee: China Co. truction Bank Corp Hefei economic and Technological Development Zone Branch Pledgor: HEFEI METALFORMING INTELLIGENT MANUFACTURING CO.,LTD. Registration number: Y2021980016196 |
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Granted publication date: 20200515 Pledgee: China Co. truction Bank Corp Hefei economic and Technological Development Zone Branch Pledgor: HEFEI METALFORMING INTELLIGENT MANUFACTURING CO.,LTD. Registration number: Y2021980016196 |
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