CN87200310U - Wheel circular rim shaping machine - Google Patents

Abstract

The utility model relates to a wheel circular rim shaping machine, mainly comprising a main transmission system, a press rolling system, an electrical system, and a clamping system. The press rolling system is the main organ of the whole machine, mainly comprising a rotary table, two one time rollers, four roller carriers, a support rod, a tappet rod, a base, an ejecting cylinder and four support columns. The roller carriers on the rotary table are provided with one time rollers and quadric rollers, and the feeding order of the one time rollers and the quadric rollers are determined by the configuring position of the long round hole on the push rod and the hydraulic control system.

Description

Wheel circular rim shaping machine

The utility model relates to the machinery according to the rolling rim for automobile wheel of steel theory of plastic deformation, relates in particular to the rim for automobile wheel forming machine.

Existing rim for automobile wheel is shaped mechanical, still is the cold-press moulding form no matter adopt hot forming, the equal more complicated of device structure, difficulty is adjusted in operation, and it is inhomogeneous to occur rolling thickness easily, and product percent of pass is low, and rim for automobile wheel shaping need 7 to 8 procedures, so the production cost height yields poorly.

The purpose of this utility model is to overcome the shortcoming of known technology, and a kind of output height is provided, the product percent of pass height, and production cost is low, is easy to use and keep in repair, reliable and stable rim for automobile wheel forming machine.

The steel ring of automobile, tractor and various tractor-trailer wheels can be divided into shaped steel wheel and sheet material wheel rim wheel two big classes.The said rim for automobile wheel forming machine of the utility model is to be used for the machinery that the sheet material rim for automobile wheel is shaped.The sheet material rim for automobile wheel is shaped, be that steel plate is cut into billot, make wheel rim blank circle through pulleying circle, butt welding, after evening weld seam out, put in the rolling forging die, use two pair rollers, pass through sequence control, follow procedure from inside to outside successively, the one side radial dilatation, one side is revolved and is caught up with, and the blank circle is overlayed on the inwall of rolling forging die be shaped.The rolling forming of rim for automobile wheel divides three operations to carry out: first operation, and an outside feeding of roller is pressed into medial launder; Second operation, one time roller shrinks, and the outside feeding of secondary roller is pressed into two end boss; The 3rd operation, the shaping sizing, because the control of preset mechanism, two pair roller follow procedures carry out roll extrusion stage by stage.After first operation is rolled into medial launder, break away from workpiece, and then the roller of second operation by last workpiece, carries out the roll extrusion of shape groove both sides flange.Like this, help promoting blank circle two ends metal and make plastic flow, avoided traditional shaping that material is bitten in each corner, the shortcoming of strong axial tension attenuate takes place to the stage casing.

The said rim for automobile wheel forming machine of the utility model mainly is made up of main transmission, roll extrusion system, electrical system and clamping system.The roll extrusion system is the principal organ of full machine, and it mainly contains turntable, two rollers, two secondary rollers, four rolling frame, strut, tappet, connection seat (pedestal), liftout tank and four support columns compositions.Motor belt drives belt pulley and speed changer, the main shaft of drive turntable makes turntable around axially doing gyration.The roller of first operation and second operation is housed on the turntable, and each is a pair of, is contained in respectively on the turning rolls separately, is promoted by separately strut, can do the radial dilatation feeding along the slide plate up and down of turntable.The feeding order of roller and secondary roller is decided by the configuration and the hydraulic control system of the slotted hole on the push rod.

When liftout tank cavity of resorption input pressure when oil, by piston rod, the connection seat tappet passes to a pair of strut of a roller with thrust, makes the turning rolls band of a roller roller and outwards does the radial dilatation feeding along slide plate, makes a roller press to the blank circle.The blank circle of this moment, tight by the folding die clamp, because the gyration of turntable, make the wholecircle week roll extrusion when pressing to the blank circle of roller along the blank circle.The one side expansion, the one side roll extrusion progressively overlays the blank circle on the folding mould and forms medial launder.When medial launder is finished, slotted hole lower end on the push rod touches secondary roller strut pin, secondary roller strut pin is along up and down slotted hole slippage, and thrust is passed to the strut of secondary roller turning rolls, makes the secondary roller outwards do the radial dilatation feeding, behind the flange on the intact grooving both sides of roll extrusion, this moment, push rod arrived the limes superiors position, and the secondary roller stops radial feed, but still stays the limes superiors position, continue the several weeks of revolving round the sun, reach shaping sizing purpose.The revolution of shaping campaign is controlled by the time relay.The radial dilatation feed speed of roller is set up by the Hydraulic Adjustable Speed valve.Turntable revolution moving one changes, and the amount of feeding of roller is 1 to 4 millimeter (deciding according to workpiece material).After the roll extrusion action is finished, the commutation of oil stream, liftout tank epicoele input pressure oil, the push rod backhaul spurs strut pin and strut downwards, makes roller recess workpiece, draws in to the turntable center, and simultaneously, the folding mould is opened by clamping cylinder, takes out workpiece.

Close up and the locking action of folding mould are realized by a connecting rod link mechanism by a pair of hydraulic clamp oil cylinder.When roll extrusion began, clamping cylinder at first closed up the folding mould, clamped the blank circle.After roll extrusion was finished, roller moved back and rolls, and opened the folding mould simultaneously, took out workpiece.Hydraulic system is equipped with one of liftout tank (being the roller feed cylinder), and clamping cylinder is a pair of, by a table oil oil pump feed.Adjust the overflow valve and the unloader of oil pump, the folding mould is opened, liftout tank is used for controlling the motion of roller and secondary roller.

The size range of tappet should be 30 millimeters to 200 millimeters, so just can strengthen that roller closes up and the time difference of secondary roller between strutting, and has avoided wheel rim to rotate and scratch in the folding mould.Structurally adopt " mountain " font and rectangle associating guide rail.Can improve the stability of guiding accuracy and body like this.Be reinforced frame intensity, adopt four road reinforcements and double hold-down screw, the base plate bottom is provided with the twice reinforcement.For making the synchronous operation of folding mould, hydraulic system is provided with synchronous oil circuit, has guaranteed that the folding of folding mould is carried out synchronously, has reduced the generation of rim for automobile wheel " sideslip " phenomenon.

Accompanying drawing is the schematic diagram that meets the utility model theme.

Fig. 1 is the front view of rim for automobile wheel forming machine.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the structure chart of framework (18).

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is the structure chart of base plate (21).

Fig. 6 is the vertical view of Fig. 5.

Fig. 7 is the structure chart of tappet (5).

Fig. 8 is the vertical view of Fig. 7.

Now in conjunction with the accompanying drawings, be that example is described in detail as follows with 5.5F * 16 rim for automobile wheel once-forming cold breakdown machines.Motor (22) by belt pulley (23), speed changer (15), main shaft (14) and up and down turntable (12) make a turning rolls (7) and a roller (8) together around the center line revolution of tappet (5).Promoting tappet (5) by liftout tank (16) by connection seat (20) rises, move by the radially slide plate (9) on the turntable (12) about a strut (a 6) turning rolls of promotion (7) edge and (10) again, folding mould (1) is divided into left and right sides two halves, and opening and closing left and right mould (1) clamps workpiece under the effect of clamping cylinder (17) and strut (19).Opening and closing left and right mould (1) is fixed on the lathe bed (13), and base plate (21) is the pedestal of lathe bed (13).Clamping cylinder (17) is the folding power source of opening and closing left and right mould (1), and its opening and closing movement is to be realized by the strut (19) that is connected between opening and closing left and right mould (1) and the framework (18).When a roller (8) contacts with the workpiece blank circle, just carry out roll extrusion.At this moment, the existing revolution of a roller (8) has rotation again, and the roll extrusion working cycles is carried out.During each circulation beginning, tappet (5) just rises from extreme lower position.Because the strut (6) and the tappet (5) of a turning rolls (7) are hinged with circular hole, and the strut (4) of secondary roller (2) and secondary turning rolls (3) and tappet (5) are hinged with slotted hole.When tappet (5) moves up, its displacement is in 30 millimeters to 200 millimeters number ranges the time, and then the radial slot of the slide plate (9 and 10) of secondary turning rolls (3) on the turntable (1) up and down moves.When a roller (8) contacts with the workpiece blank circle, just carry out thick roll extrusion.In the meantime, secondary roller (2) is not done radial motion, does not participate in roll extrusion.When tappet (5) continues to move up, its displacement is during greater than 200 millimeters, and secondary roller (2) just begins to move along the radial slot of the slide plate (9 and 10) on the turntable (12) up and down.In order to save power, when preferably allowing not good liquor wheel (8) throw off with the workpiece blank circle, secondary roller (2) carries out smart roll extrusion Cai contact with the workpiece blank circle.When strut (4) and tappet (5) when being in mutual upright position, moving radially of secondary roller (2) reaches maximum, and then rim for automobile wheel is rolled shaping.Tappet (5) descends, and when the distance of its decline was in 30 millimeters, secondary roller (2) continued to do in the original place roll extrusion campaign, thereby the shape and size of rim for automobile wheel are played the effect of shaping sizing.When tappet (5) continue to descend, its displacement is during greater than 30 millimeters, and secondary roller (2) begins radially that groove draws in, drops to the home position until tappet (5), and a cycle period finishes.

Claims (4)

1, rim for automobile wheel forming machine, mainly by main transmission, the roll extrusion system, electrical system and clamping system are formed, the feeding order of roller and secondary roller is decided by the allocation position and the hydraulic control system of slotted hole on the push rod, it is characterized in that said allocation position is between 30 millimeters to 200 millimeters.

2, according to the said rim for automobile wheel forming machine of claim 1, it is characterized in that a roller close up and the secondary roller has a specific time difference between strutting.

3,, it is characterized in that structurally adopting " mountain " font and rectangle associating guide rail according to the said rim for automobile wheel forming machine of claim 1.

4, according to the said rim for automobile wheel forming machine of claim 1, it is characterized in that adopting four road reinforcements and double hold-down screw on the framework, the twice reinforcement is arranged at the base plate bottom.

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