CN208321985U - Car rear axle semi-axis forges automatic production line - Google Patents

Abstract

The utility model belongs to forging field of automation technology, automatic production line is forged more particularly to a kind of car rear axle semi-axis comprising automatic bar feeder, intermediate frequency furnace, the poly- material hydraulic press of big end, the upset hydraulic press of small end, flange forming fly press, cooling rotary plate and the manipulator that workpiece is shifted between each process.The utility model all uses automatic operation, compared with existing semiaxis forging mode, workpiece is shifted using manipulator between semiaxis forging each process, semiaxis forging line fully achieves automated production, can long-time continuous production according to production needs, significantly improve working efficiency, reduce energy consumption, stable product quality, whole production line without human intervention, greatly reduce the labor intensity of worker.

Description

Car rear axle semi-axis forges automatic production line

Technical field

The utility model relates to a kind of car rear axle semi-axis to forge automatic production line, belong to forging automatic technology neck Domain.

Background technique

The method of domestic automobile rear axle shaft production at present is to fully rely on manually to realize carrying and operation, processing step It is as follows: when forging, will manually to be heated on the bar manual handling to small end intermediate frequency furnace cut, according to being heated workpiece Heating time judges heating temperature, then again manually bar good after heating be transferred on hydraulic press carry out small end it is upset, it is small After holding upset process, it is cooling that workpiece is manually moved to the first-class workpiece of material frame, is waited after complete cooling again by manually by small end 180 ° of the workpiece reversion of upset completion, which is put to intermediate frequency furnace, heats big end, after the completion of heating, then by manually good after heating Bar, which is transferred on hydraulic press, carries out the poly- material base of big end, after the completion of base, then by being manually rapidly put into the workpiece after base It puts and carries out flange end molding in mill.

Existing semiaxis forging mode, labor intensity of workers is big, high production cost, and is ground according to foreign latest Study carefully, so that the metal streamline of workpiece after forming is had sinuous flow, reflux defect using the pendulum molding method of mill, influence the mechanics of part Performance.

Utility model content

Technical problem to be solved by the utility model is: overcoming deficiency in the prior art, a kind of the degree of automation is provided Height, the car rear axle semi-axis that high production efficiency, low energy consumption, labor intensity of workers is small and products obtained therefrom quality is stable forging automation Production line.

Car rear axle semi-axis described in the utility model forges automatic production line, including automatic bar feeder, intermediate frequency Furnace, big end are poly- to expect hydraulic press, the upset hydraulic press of small end, flange forming fly press, cooling rotary plate and shifts between each process The manipulator of workpiece.

Wherein, automatic bar feeder (including material storing box and feed mechanism), intermediate frequency furnace, the poly- material hydraulic press, small end of big end Upset hydraulic press, flange forming fly press and manipulator are all known or commercial equipments, in practical application, respectively setting Standby specific location can be arranged according to real space in workshop, and the quantity of manipulator and position are also according to the cloth of other equipment Situation is set flexibly to determine.

By the forging of the utility model progress car rear axle semi-axis, steps are as follows:

1, the bar in its material storing box is separated by root and passes through its feed mechanism by automatic bar feeder is sent to waiting Station；

2, bar is grabbed and is placed in intermediate frequency furnace by manipulator and heated；

3, the workpiece heated in intermediate frequency furnace is taken out, then be placed in the poly- material hydraulic press of big end, workpiece big end is gathered Material movement；

4, the bar after the poly- material of big end is taken out from the poly- material hydraulic press of big end, is placed into flange forming fly press Carry out flange forming；

5, by the workpiece grabbing after flange forming and it is placed on cooling rotary plate that carry out big end cooling；

6, it after the completion of big end is cooling, puts the workpiece in and carries out small end heating in intermediate frequency furnace；

7, the workpiece for heating small end in intermediate frequency furnace takes out, and it is upset to be put into progress small end in the upset hydraulic press of small end；

8, the upset product parts of small pier will be completed to be put into finished product material frame；

9, after product reaches certain amount in finished product material frame, finished product material frame removes blowing by way of automatic or manual Area.

Preferably, the poly- material hydraulic press of big end, the upset hydraulic press of small end, three equipment of flange forming fly press mold It include upper die and lower die, platen pedestal, lower die pedestal and driving mechanism, platen pedestal is mounted on the pedestal of corresponding equipment, platform The upper surface of board bottom seat is equipped with sliding-rail groove, slide unit of the corresponding sliding-rail groove in the bottom of lower die pedestal setting evagination, lower die pedestal By its bottom, slide unit is mounted on platen pedestal, and is slided under the drive of driving mechanism along the sliding-rail groove of platen pedestal；Under Mould is mounted on lower die pedestal, and the upper bar slot of notch upward is arranged in lower die.

When blowing, first start driving mechanism, lower die is pushed into the distal end discharge position on the outside of corresponding equipment, is used later Manipulator is put the workpiece in the upper bar slot in lower die, drives lower die to return to by driving mechanism later first in corresponding equipment Beginning position (underface of upper mold in equipment being corresponded to, at this point, upper and lower mould center line is overlapped), completes die-filling operation.Due to workpiece It is is fitted into lower die on the outside of corresponding equipment, therefore when direct grabbing workpiece of manipulator is put into lower die is not pressurised power machine and stands The interference of intercolumniation width or fuselage, and a part of workpiece fitting allowance is provided by upper bar slot, height dimension can be made Forging workpiece slightly larger than corresponding equipment height of packing compact can be also fitted into mold.

It is further preferred that driving mechanism uses hydraulic cylinder, the cylinder body of hydraulic cylinder is mounted on lower die pedestal and and lower die Pedestal is hinged, and the cylinder rod and lower die pedestal of hydraulic cylinder are hinged, drives lower die pedestal and lower die along platen pedestal by hydraulic cylinder Sliding-rail groove sliding.

It is further preferred that along its length, forward and backward two limited block is installed on sliding-rail groove.When lower die is driven mechanism When control reaches forward and backward designated position, the corresponding limited block being installed on platen pedestal is blocked, to limit by forward and backward two Position block controls the stroke of lower die pedestal and lower die, and plays the role of pinpoint.In the present invention, lower die is forward and backward Designated position is respectively to pick and place in the initial position (i.e. the underface of upper mold) in corresponding equipment and the distal end on the outside of corresponding equipment Discharge position.

It is further preferred that lower die is integrated with the installation of lower die pedestal, lower mold assemblies are constituted.

It is further preferred that upper bar slot in lower die is through slot, it is provided in lower die pedestal and is communicated with upper bar slot Lower bar slot, underface and the two position correspondence, upper bar slot and lower bar slot common shape of the lower bar slot position in upper bar slot At bar placing groove；The clamper of clamping workpiece is installed in lower die pedestal, the clamping end of clamper is placed towards bar Slot.By gripper workpiece, workpiece can be made to be maintained at certain altitude in die cavity, and different height ruler can be suitable for Very little workpiece.

It is further preferred that the clamper includes two clamping oil cylinders, the cylinder rod end of two clamping oil cylinders is towards stick Expect placing groove and position face, the cylinder body for clamping oil cylinder are fixed in lower die pedestal, while driving two clamping oil cylinders, can be realized Clamping or release movement to workpiece.

It is further preferred that ejector beam is arranged in the pedestal of corresponding equipment, corresponding ejector beam is arranged on platen pedestal Through-hole, ejector beam are driven by liftout oil cylinder, and can be protruded into bar placing groove under the drive of liftout oil cylinder, and ejector beam is passed through Workpiece can be ejected to setting height.It is further preferred that corresponding ejector beam setting guiding in the pedestal of corresponding equipment is logical Road, it is ensured that ejector beam is moved along intended trajectory.

Preferably, cooling rotary plate includes rotary disk basement, support for rotary disc and driving motor；Floating bearing is installed in rotary disk basement, is turned The lower central shaft of disc carrier is mounted on rotary disk basement by floating bearing, and driving motor drives center to turn by transmission mechanism Axis rotates, and is evenly equipped with bracket slot on the upper disk surface of support for rotary disc.In practical application, the preferred stepper motor of driving motor, transmission The preferred pulley transmission mechanism of mechanism, driving wheel, the driven wheel of pulley transmission mechanism be separately mounted to stepper motor output shaft, On central rotating shaft.When work, indexed rotational motion is carried out by stepper motor driving support for rotary disc, cooling rotary plate is driven by stepper motor It moves a step, will turn an angle, workpiece to be cooled after molding is put into bracket slot by manipulator, when unit one revolves After turning around, the temperature of workpiece flange end is down to preference temperature, and workpiece after cooling is put into lower step work again by manipulator at this time Sequence.

Possessed beneficial effect is the utility model compared with prior art:

The utility model all uses automatic operation, compared with existing semiaxis forging mode, semiaxis forging life Workpiece is shifted using manipulator between production each process, semiaxis forging line fully achieves automated production, can be according to production needs Long-time continuous production significantly improves working efficiency, reduces energy consumption, stable product quality, whole production line is without artificial behaviour Make, greatly reduces the labor intensity of worker.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the left view sectional view of mold in flange forming fly press；

Fig. 3 is the main view of mold in flange forming fly press；

Fig. 4 is the structural schematic diagram of flange forming fly press；

Fig. 5 is the structural schematic diagram of cooling rotary plate.

In figure: 1, automatic bar feeder；2, intermediate frequency furnace is used in big end heating；3, the poly- material hydraulic press of big end；4, first is mechanical Hand；5, flange forming fly press；6, the second manipulator；7, the upset hydraulic press of small end；8, intermediate frequency furnace is used in small end heating；9, cold But turntable；10, finished product material frame；11, lower die；12, lower die pedestal；13, bar placing groove；14, slide unit；15, platen pedestal；16, Through-hole；17, workpiece；18, oil cylinder is clamped；19, the cylinder body of hydraulic cylinder；20, the cylinder rod of hydraulic cylinder；21, limited block；22, guiding is logical Road；23, ejector beam；24, upper mold；25, the pedestal of corresponding equipment；26, liftout oil cylinder；27, bracket slot；28, upper disk surface；29, in Heart shaft；30, rotary disk basement；31, floating bearing；32, transmission mechanism；33, driving motor.

Specific embodiment

The embodiments of the present invention are described further with reference to the accompanying drawing:

As shown in Figure 1, car rear axle semi-axis forging automatic production line described in the utility model includes on automatic bar The poly- material hydraulic press 3, the upset hydraulic press 7 of small end, flange forming fly press 5,9 and of cooling rotary plate of material machine 1, intermediate frequency furnace, big end The manipulator of workpiece is shifted between each process.Wherein, automatic bar feeder 1 (including material storing box and feed mechanism), intermediate frequency furnace, The poly- material hydraulic press 3 of big end, the upset hydraulic press 7 of small end, flange forming fly press 5 and manipulator are all known or commercially available The specific location of equipment, each equipment can be arranged according to real space in workshop, and the quantity of manipulator and position are also according to it The deployment scenarios of his equipment flexibly determine.According to the needs of actual production in the present embodiment, it is provided with the first manipulator 4 and the Two manipulators 6, and for ease of operation, two manipulators are all made of the manipulator of 6DOF to shift workpiece；It is directed to bar simultaneously Big end heating process, small end heating process be respectively provided with big end heating intermediate frequency furnace 2, small end heating intermediate frequency furnace 8 two Equipment.

In the present embodiment, the poly- material hydraulic press 3 of big end, the upset hydraulic press 7 of small end, flange forming fly press 5 three set Mold in standby includes upper die and lower die, and the structure design of lower die is identical, is to be moved into and out formula.For ease of description, existing Structure explanation is carried out by taking the mold of flange forming fly press 5 as an example:

As in Figure 2-4, the mold in flange forming fly press include upper mold 24, lower die 11, platen pedestal 15, under Mould pedestal 12 and driving mechanism.

In the present embodiment:

Lower die 11 is mounted on lower die pedestal 12, and the two constitutes lower mold assemblies.

Platen pedestal 15 is mounted on the pedestal 25 of corresponding equipment, and the upper surface of platen pedestal 15 is equipped with sliding-rail groove, right Answer sliding-rail groove in the slide unit 14 of the bottom of lower die pedestal 12 setting evagination, lower die pedestal 12 is mounted on platform by its bottom slide unit 14 On board bottom seat 15, and slided under the drive of driving mechanism along the sliding-rail groove of platen pedestal 15.

Along its length, forward and backward two limited block 21 is installed on sliding-rail groove.It is reached when lower mold assemblies are driven mechanism controls When forward and backward designated position, the corresponding limited block 21 being installed on platen pedestal 15 is blocked, to pass through forward and backward two limited block 21 control the stroke of lower mold assemblies, and play the role of pinpoint.In the present embodiment, the forward and backward specific bit of lower die 11 is set It sets and respectively picks and places material position in the initial position (i.e. the underface of upper mold 24) in corresponding equipment and the distal end on the outside of corresponding equipment It sets.

Driving mechanism uses hydraulic cylinder, and the cylinder body 19 of hydraulic cylinder is mounted on lower die pedestal 12 and cuts with scissors with lower die pedestal 12 It connects, the cylinder rod 20 and lower die pedestal 12 of hydraulic cylinder are hinged, drive lower die pedestal 12 and lower die 11 along platen pedestal by hydraulic cylinder 15 sliding-rail groove sliding.

Notch upper bar slot upward is set in lower die 11 and upper bar slot is through slot, be provided in lower die pedestal 12 with it is upper The lower bar slot that bar slot communicates, underface and the two position correspondence of the lower bar slot position in upper bar slot, upper bar slot is under Bar placing groove 13 is collectively formed in bar slot；The clamper of clamping workpiece 17 is installed in lower die pedestal 12, clamper Clamping end is towards bar placing groove 13.By gripper workpiece 17, workpiece 17 can be made to be maintained at certain altitude in die cavity, And the workpiece 17 of different height size can be suitable for.

Clamper includes two clamping oil cylinders 18, and the cylinder rod end of two clamping oil cylinders 18 is towards bar placing groove 13 and position The cylinder body of face, clamping oil cylinder 18 is fixed in lower die pedestal 12, while driving two clamping oil cylinders 18, can be realized to workpiece 17 Clamping or release movement.

Ejector beam 23 is set in the pedestal 25 of corresponding equipment, through-hole 16 is arranged in corresponding ejector beam 23 on platen pedestal 15, Ejector beam 23 is driven by liftout oil cylinder 26, and can be protruded into bar placing groove 13 under the drive of liftout oil cylinder 26, corresponding top Expect that guide channel 22 is arranged in the pedestal 25 of corresponding equipment in bar 23, workpiece 17 can be ejected by ejector beam 23 high to setting Degree.

Before being forged and pressed using the mold in the flange forming fly press 5 in the present embodiment, first passes through hydraulic cylinder and push away Dynamic lower mold assemblies slide into the distal end discharge position (distalmost end) on the outside of corresponding equipment along sliding-rail groove, by the limited block 21 at rear It blocking, manipulator or workpiece 17 is manually put into 11 certain altitude of lower die at this time, this is highly higher than 15 sliding rail groove face of platen pedestal, Workpiece 17 is clamped in the two clamping movements of oil cylinder 18 being mounted in lower die pedestal 12 simultaneously, manipulator or artificial release later, liquid Lower mold assemblies are pulled in the initial position in corresponding equipment by cylinder pressure, and lower mold assemblies are blocked by the limited block 21 in front, at this time upper mold 24 are overlapped with the center line of lower die 11, and two clamping oil cylinders 18 unclamp workpiece 17, and workpiece 17 is fallen completely in lower mold assemblies, and correspondence is set It is standby to carry out forging and stamping movement.After the completion of workpiece 17 forges and presses, the ejection of workpiece 17 is higher than to the sliding rail of platen pedestal 15 by ejector beam 23 Groove face height, workpiece 17 is clamped in the two clamping movements of oil cylinder 18, then lower mold assemblies are pushed out on the outside of corresponding equipment by hydraulic cylinder Distal end discharge position distalmost end, blocked by the limited block 21 of corresponding position, taken out by manipulator or manually by workpiece 17.By It is the pick-and-place realized on the outside of corresponding equipment in workpiece 17, therefore is not pressurised power machine column when the direct grabbing workpiece 17 of manipulator Between width or fuselage interference, and a part of workpiece fitting allowance is provided by bar placing groove 13, height gauge can be made The very little forging workpiece 17 slightly larger than corresponding equipment height of packing compact can be also fitted into mold.

9 structure of cooling rotary plate in the present embodiment is as shown in Figure 5 comprising rotary disk basement 30, support for rotary disc and driving motor 33；Floating bearing 31 is installed, the lower central shaft 29 of support for rotary disc is mounted on turntable by floating bearing 31 in rotary disk basement 30 On seat 30, driving motor 33 drives central rotating shaft 29 to rotate by transmission mechanism 32, is evenly equipped on the upper disk surface 28 of support for rotary disc Bracket slot 27.In practical application, the preferred stepper motor of driving motor 33, the preferred pulley transmission mechanism 2 of transmission mechanism 32, skin Driving wheel, the driven wheel of belt wheel transmission mechanism are separately mounted to stepper motor output shaft, on central rotating shaft 29.When work, by step Indexed rotational motion is carried out into motor driven support for rotary disc, designs 30 bracket slots 27 altogether on the upper disk surface 28 in the present embodiment, Cooling rotary plate 9 is moved a step by stepper motor drive, rotates 12 °, and workpiece to be cooled after molding is put into bracket slot 27 by manipulator, After unit one rotation is turned around, the temperature of workpiece flange end is down to preference temperature (300 DEG C~400 DEG C), at this time by machinery Workpiece after cooling is put into lower step process again by hand.

By the forging of above-mentioned car rear axle semi-axis forging automatic production line progress car rear axle semi-axis, steps are as follows:

(1) several round bars are put into in the material storing box of automatic bar feeder 1 (conventional automatic bar feeder 1 includes Material storing box and feed mechanism), bar, which separates by root and passes through its feed mechanism, is sent to waiting station；

(2) bar of position will be waited to grab and be placed in big end heating intermediate frequency furnace 2 by the first manipulator 4 and heat bar Big end, big end heating intermediate frequency furnace 2 is horizontal positioned (multiple hearth parallel construction can be used, can heat more bars simultaneously)；

(3) after bar big end is heated to 1000 DEG C of forging temperatures, bar is heated in use from big end by the first manipulator 4 It takes out and is grabbed to the poly- material of progress big end in poly- material 3 mold of hydraulic press of big end, the lower die of the poly- material hydraulic press 3 of the big end in frequency furnace 2 To be moved into and out formula, when bar is put into, lower die is removed out of hydraulic press, and bar is put into lower die by robot, and lower die moves into big end In poly- material hydraulic press 3, the poly- material hydraulic press 3 of big end starts movement and completes the poly- material movement of big end；

(4) after the completion of the poly- material of big end, the bar gathered is put into 1600T flange forming helical pressure by the first manipulator 4 The forging and stamping of rear axle shaft big end ring flange, the lower die of flange forming fly press 5 are carried out in machine 5 (using electric screw press) And it is moved into and out formula, when bar is put into, lower die is removed out of flange forming fly press 5, and the first manipulator 4 puts bar After entering lower die, lower die is moved into flange forming fly press 5, and flange forming fly press 5 carries out beating for big end ring flange Hit movement；

(5) after ring flange forging and forming, lower die is removed out of flange forming fly press 5, by the second manipulator 6 will under Semiaxis semi-finished product crawl in mould is placed on cooling rotary plate 9, when big end being waited to be cooled to 300 DEG C or so, by the second manipulator 6 Crawl is put to carrying out small end heating in small end heating intermediate frequency furnace 8；

(6) it after small end is heated to forging temperature, is grabbed by the second manipulator 6 and places the upset progress of hydraulic press 7 small end of small end It is upset, after the completion of small end is upset, it is put into finished product material frame 10 by the second manipulator 6 crawl fabricated part；

(7) after product reaches certain amount in finished product material frame 10, finished product material frame 10 is removed by way of automatic or manual Blowing area.

Claims (10)

1. a kind of car rear axle semi-axis forges automatic production line, it is characterised in that: including automatic bar feeder (1), intermediate frequency Poly- material hydraulic press (3) of furnace, big end, the upset hydraulic press of small end (7), flange forming fly press (5), cooling rotary plate (9) and The manipulator of workpiece is shifted between each process, workpiece is realized through manipulator in automatic bar feeder (1), intermediate frequency furnace, the poly- material of big end Hydraulic press (3), flange forming fly press (5), cooling rotary plate (9), intermediate frequency furnace, small end upset hydraulic press (7) sequentially turn It moves.

2. car rear axle semi-axis according to claim 1 forges automatic production line, it is characterised in that: the poly- material oil pressure of big end Machine (3), the upset hydraulic press of small end (7), (5) three equipment of flange forming fly press mold include upper mold (24), under Mould (11), platen pedestal (15), lower die pedestal (12) and driving mechanism, platen pedestal (15) are mounted on the pedestal of corresponding equipment (25) on, the upper surface of platen pedestal (15) is equipped with sliding-rail groove, and corresponding sliding-rail groove is outer in the setting of the bottom of lower die pedestal (12) Convex slide unit (14), lower die pedestal (12) are mounted on platen pedestal (15) by its bottom slide unit (14), and in driving mechanism Drive under along platen pedestal (15) sliding-rail groove slide；Lower die (11) is mounted on lower die pedestal (12), and lower die is set in (11) Set the upper bar slot of notch upward.

3. car rear axle semi-axis according to claim 2 forges automatic production line, it is characterised in that: driving mechanism uses Hydraulic cylinder, the cylinder body (19) of hydraulic cylinder be mounted on lower die pedestal (12) and with lower die pedestal (12) hingedly, the cylinder rod of hydraulic cylinder (20) hinged with lower die pedestal (12).

4. car rear axle semi-axis according to claim 2 forges automatic production line, it is characterised in that: along its length, Forward and backward two limited block (21) is installed on sliding-rail groove.

5. car rear axle semi-axis according to claim 2 forges automatic production line, it is characterised in that: lower die (11) is under Mould pedestal (12) installation is integrated, and constitutes lower mold assemblies.

6. car rear axle semi-axis according to claim 2 forges automatic production line, it is characterised in that: in lower die (11) Upper bar slot is through slot, is provided with the lower bar slot communicated with upper bar slot in lower die pedestal (12), lower bar slot position is in upper stick The underface and the two position of hopper are corresponding, and bar placing groove (13) are collectively formed in upper bar slot and lower bar slot；At lower die bottom Clamper of clamping workpiece is installed, the clamping end of clamper is towards bar placing groove (13) in seat (12).

7. car rear axle semi-axis according to claim 6 forges automatic production line, it is characterised in that: the clamper Including two clampings oil cylinder (18), the cylinder rod end of two clampings oil cylinder (18) is towards bar placing groove (13) and position face, folder The cylinder body for holding oil cylinder (18) is fixed in lower die pedestal (12).

8. car rear axle semi-axis according to claim 6 or 7 forges automatic production line, it is characterised in that: set in correspondence Ejector beam (23) are set in standby pedestal (25), through-hole (16) are arranged on platen pedestal (15) in corresponding ejector beam (23), liftout Bar (23) is driven by liftout oil cylinder (26), and can be protruded under the drive of liftout oil cylinder (26) in bar placing groove (13).

9. car rear axle semi-axis according to claim 8 forges automatic production line, it is characterised in that: corresponding ejector beam (23) guide channel (22) are set in the pedestal (25) of corresponding equipment.

10. according to claim 1, car rear axle semi-axis described in 2,3,4,5,6,7 or 9 forges automatic production line, feature Be: cooling rotary plate (9) includes rotary disk basement (30), support for rotary disc and driving motor (33)；Rotating shaft is installed in rotary disk basement (30) It holds (31), the lower central shaft (29) of support for rotary disc is mounted on rotary disk basement (30) by floating bearing (31), driving motor (33) central rotating shaft (29) rotation is driven by transmission mechanism (32), is evenly equipped with bracket slot on the upper disk surface (28) of support for rotary disc (27)。