CN209272353U - Ring rolls pushes against mechanism - Google Patents

Abstract

The utility model belongs to machining equipment technical field, specifically disclose a kind of ring rolls abutting mechanism, including rack, milling roller, mandrel, core roller, guide roller and measurement roller, the lower end of rack is equipped with pedestal, pedestal is equipped with vertical supports, the upper end of vertical supports is fixedly connected with horizontal support, the horizontal vertical mounting rod that is slidably connected on horizontal support, downwardly open vertical chute is offered on mounting rod, the second sliding block is slidably connected in vertical chute, lateral fixing axle is inserted in second sliding block, one end of fixing axle towards rack is rotatably connected to pressure roller.Pressure roller in mechanism can be pressed in the inner circle of ring, improve the circularity of ring inner circle；Guide roller and pressure roller cooperation, push against ring, ring are avoided to swing and cannot stablize and roll.

Description

Ring rolls pushes against mechanism

Technical field

The utility model belongs to machining equipment technical field, specifically discloses a kind of ring rolls abutting mechanism.

Background technique

Ring rolls is the forging equipment for producing seamless annular forging piece, it is in bearing, automobile, aerospace and petrochemical industry etc. It is used widely in industrial circle, automobile synchronizer, bearer ring, gear ring, flange and reinforcing ring can be produced with milling ring technological process Equal ring-shaped work pieces.

Ring rolls is mainly made of parts such as milling roller, core roller, guide roller and measurement rollers, its working principle is that: by ring It covers on core roller, rolling wheel makees rotation and straight-line feed movement simultaneously, and rotation occurs for core roller, and ring passes through milling roller and core roller Rolling generates the continuous local plastic deformation that inner and outer diameter expands and wall thickness becomes smaller；When ring expands to a certain extent, ring It is contacted with guide roller, guide roller retreats under the thrust of ring outer circle, and ring is acted in the back-flexing power of guide roller Under bend to circle；When the enlarged-diameter that ring is passed through arrives predetermined size, the outer circle of ring is contacted with measurement roller, measures roller sending Signal, ring rolling process terminate.

Wherein, the major function of guide roller is so that the ring in the operation of rolling is kept correct shape, and protect its center It holds on the center line of machine, must not deflect.But when rolling beginning, guide roller is not contacted with ring, only in ring Part increase to a certain extent when just start to contact, thus ring just start rolling when and it is unstable, will affect ring process after Circularity.In addition, often will appear enlarged-diameter of the astern speed relative to ring of guide roller when ring and guide roller contact Speed situation bigger than normal or less than normal, astern speed is bigger than normal to make guide roller can not be with ring to the too small full circle power of ring or guide roller Part is kept in contact, and ring is caused to swing and cannot stablize and roll；Astern speed is less than normal, and guide roller can be made to give ring excessive whole Circle power, ring is pinched.

Utility model content

The purpose of this utility model is providing a kind of ring rolls abutting mechanism, when solving rolling beginning not due to guide roller The problem of being contacted with ring and cause ring rolling unstable, influencing the circularity after ring is processed.

In order to achieve the above object, the base case of the utility model are as follows: a kind of ring rolls abutting mechanism, including rack, Milling roller, the gear unit for driving milling roller to move up and down, mandrel, core roller, guide roller and the measurement being set on mandrel The center line of roller, milling roller and core roller is located on the same line, and the guide roller is located at the two sides of core roller with measurement roller, It is characterized by: the lower end of the rack is equipped with pedestal, pedestal is equipped with vertical supports, and the upper end of vertical supports is fixedly connected with Horizontal support, horizontal on horizontal support to slidably connect vertical mounting rod, the side of mounting rod towards rack offers downwards The vertical chute of opening slidably connects the second sliding block in vertical chute, fixed between the second sliding block and the slot bottom of vertical chute It is connected with spring, lateral fixing axle is inserted in the second sliding block, one end of fixing axle towards rack is rotatably connected to pressure roller.

The working principle of this base case is: ring being covered on core roller, drives milling roller to core by gear unit Roller is mobile, compresses ring；Mobile mounting rod makes it close to core roller, while driving the second sliding block to move up enables pressure roller to be inserted into ring In, pressure roller is pressed under gravity in the inner circle of ring, can start to roll at this time.In the operation of rolling, as ring is straight The expansion of diameter, guide roller retreat, and pressure roller moves down；Guide roller and pressure roller cooperation can push against ring, and respectively to the outer circle of ring It is played with inner circle and applies a full circle power, guarantee the circularity of ring.When ring is expanded to predetermined size, measurement roller is encountered, survey It measures roller and issues signal, rolling terminates.

The beneficial effect of this base case is:

1, mechanism is provided with pressure roller, and pressure roller is pressed in the inner circle of ring, while pressure roller can rotate under the drive of ring, And moved down automatically with the increase of ring diameter under the effect of gravity, therefore, during rolling, pressure roller energy one It is straight to keep contacting with ring, so that pressure roller can apply a full circle power to the inner circle of ring, improve the inner circle circularity of ring.

2, pressure roller and guide roller cooperation can push against ring, the fortune that the movement of pressure roller and guide roller increases with ring diameter It is dynamic to be consistent, guide roller and cylindrical bar are always maintained at and is contacted with ring and keeps certain clamping force；Due to spring Effect, the clamping force is not too big and influences the uniform diameter of ring and becomes larger, so enable ring by stabilization roll, guarantee ring Circularity after part processing.

Further, guide roller mobile unit is additionally provided in the rack, guide roller mobile unit includes what piston rod lengthened Hydraulic cylinder and guiding roller seat, piston rod are fixedly connected with guiding roller seat, and guide roller is mounted on guiding roller seat；On the mounting rod Equipped with the vertical cylinder being located at below vertical chute, the piston rod of vertical cylinder is connected with the second sliding block.

Start hydraulic cylinder, hydraulic cylinder drives guiding roller seat mobile to core roller by the piston rod lengthened, when guide roller contacts When to ring, stop hydraulic cylinder；Compared with prior art, mechanism passes through the piston rod for the hydraulic cylinder that will be connect with guiding roller seat It lengthens, be kept in contact guide roller can with ring when rolling and starting, resist ring, ring is avoided to swing, to make Ring can be rolled by stabilization.In addition, vertical cylinder drives the second sliding block to move up, drop mobile compared to the second sliding block of manual control The low labor intensity of worker, improves work efficiency.

Further, sliding sleeve is slidably connected on the horizontal support, the mounting rod passes through sliding sleeve and horizontal support It is slidably connected.Worker passes through mobile sliding sleeve, can easily move mounting rod, structure is simple, easy to operate.

Further, the side of the mounting rod towards rack is also provided with the circular hole for installing mandrel, and circular hole is located at perpendicular The top of straight runner., cannot be again to machine frame movement when sliding sleeve is moved in mandrel insertion circular hole, worker is known that sliding Set and mounting rod are in place；In addition, when core roller rotate rolling ring when, will receive ring to opposition, may Axial deflection can occur, influence the machining accuracy of ring, in some instances it may even be possible to so that core roller or mandrel is fractureed, at this moment due to one end of mandrel It being inserted into circular hole, mounting rod can play the role of axially position to mandrel, and prevent mandrel from axial deflection occurs, and then protect core roller, Improve the service life of core roller.

Further, the horizontal support or vertical supports are equipped with lateral cylinder, lateral cylinder and sliding sleeve or mounting rod It is connected.It drives sliding sleeve and mounting rod to move horizontally using lateral cylinder, does not have to manual operation, the labour that can reduce worker is strong Degree improves working efficiency.

Further, bearing is equipped in the circular hole, the mandrel can plug within the bearing.Bearing can reduce mandrel high speed and revolve Turn the perturbed force generated to mounting rod, improves the stability of mounting rod, and then guarantee the stability of entire mechanism.

Further, the lower end of the mounting rod is in contact with pedestal.Pedestal can play a supporting role to mounting rod in this way, protect The stability of mounting rod is demonstrate,proved, and then guarantees the stability of pressure roller.

Detailed description of the invention

Fig. 1 is the front view of the utility model embodiment；

Fig. 2 is the partial sectional view of the right apparent time of the utility model embodiment；

Fig. 3 is the structural schematic diagram of the mounting rod in Fig. 2.

Specific embodiment

It is further described below by specific embodiment:

Appended drawing reference in Figure of description include: rack 1, milling roller 2, the first sliding block 3, cylinder 4, mandrel 5, core roller 6, Guide roller 7, measurement roller 8, hydraulic cylinder 9, guiding roller seat 10, pedestal 11, vertical supports 12, horizontal support 13, sliding sleeve 14, installation Bar 15, vertical chute 16, the second sliding block 17, spring 18, fixing axle 19, pressure roller 20, vertical cylinder 21, circular hole 22, bearing 23, cross To cylinder 24, ring 25.

Embodiment is substantially as depicted in figs. 1 and 2: ring rolls push against mechanism, including rack 1, milling roller 2, for drive grind Gear unit, mandrel 5, the core roller 6 being set on mandrel 5, guide roller 7 and the measurement roller 8 that pinch roller moves up and down, gear unit packet Including the first sliding block 3 and cylinder 4, the center line of milling roller 2 and core roller 6 is located on the same line, under the driving of cylinder 4, first Sliding block 3 in rack 1 along the center line movement of milling roller 2, to drive milling roller 2 close to or far from core roller 6；Guide roller 7 It is located at the two sides of core roller 6 with measurement roller 8, guide roller mobile unit is additionally provided in rack 1, guide roller mobile unit includes living The hydraulic cylinder 9 and guiding roller seat 10 that stopper rod lengthens, hydraulic cylinder 9 is bolted in rack 1, the piston rod of hydraulic cylinder 9 with Guiding roller seat 10 welds together, on the rotation connection guiding roller seat 10 of guide roller 7.

The lower end of rack 1 is equipped with pedestal 11, is welded with vertical supports 12 on pedestal 11, the upper end of vertical supports 12 is welded with Horizontal support 13, level slidably connects sliding sleeve 14 on horizontal support 13, and the lower end of sliding sleeve 14 is welded with vertical installation Bar 15.

As shown in connection with fig. 3, the left side of mounting rod 15 offers downwardly open vertical chute 16, slides in vertical chute 16 It is connected with the second sliding block 17, spring 18, the second sliding block 17 are fixedly connected between the second sliding block 17 and the slot bottom of vertical chute 16 In be inserted with lateral fixing axle 19, one end of fixing axle 19 towards rack 1 is rotatably connected to pressure roller 20.Mounting rod 15 is equipped with Vertical cylinder 21 positioned at the lower section of vertical chute 16, the piston rod of vertical cylinder 21 upward and are connected under the second sliding block 17 End.The left side of mounting rod 15 is also provided with the circular hole 22 for installing mandrel 5, and circular hole 22 is located at the top of vertical chute 16, circle Bearing 23 is equipped in hole 22, mandrel 5 can be plugged in bearing 23.In the present embodiment, the center line of circular hole 22 and vertical chute 16 Be consistent, such pressure roller 20 be able to maintain with the center line of core roller 6 it is consistent, i.e., pressure roller 20 can be pressed in 25 center of circle of ring just under Side, can preferably avoid ring 25 from swinging.

Vertical supports 12 or horizontal support 13 are equipped with lateral cylinder 24, the piston rod and mounting rod 15 of lateral cylinder 24 or Sliding sleeve 14 is connected.In the present embodiment, lateral cylinder 24 is mounted in vertical supports 12, and is connected with the right side of mounting rod 15 It connects；Lateral cylinder 24 can also be mounted on horizontal support 13, be connected with sliding sleeve 14, two ways is played the role of It is identical.

The lower end of mounting rod 15 is in contact with pedestal 11.Pedestal 11 can play a supporting role to mounting rod 15 in this way, guarantee The stability of mounting rod 15, and then guarantee the stability of pressure roller 20.

Specific implementation process is as follows: as shown in Figure 1, making the first sliding block 3 by cylinder 4 first by 25 sets of ring on core roller 6 It drives milling roller 2 mobile to core roller 6, compresses ring 25；Start hydraulic cylinder 9, the driving guiding roller seat 10 of hydraulic cylinder 9 is moved to core roller 6 It is dynamic, when guide roller 7 touches ring 25, close hydraulic cylinder 9.

As shown in Fig. 2, starting lateral cylinder 24, lateral cylinder 24 drive sliding sleeve 14 in horizontal support by mounting rod 15 It is moved to the left on 13, makes mounting rod 15 close to core roller 6；At the same time, start vertical cylinder 21, the vertical driving of cylinder 21 second is sliding Block 17 moves up, and pressure roller 20 is enable to be inserted into ring 25, is then shut off vertical cylinder 21, and pressure roller 20 can be pressed under gravity In the inner circle of ring 25；When in the bearing 23 that mandrel 5 is inserted into circular hole 22, closes to cylinder 24, can start to ring at this time Part 25 is rolled.In the operation of rolling, with the expansion of 25 diameter of ring, guide roller 7 is retreated, and pressure roller 20 moves down；7 He of guide roller The cooperation of pressure roller 20 can push against ring 25, and the outer circle to ring 25 and inner circle play one full circle power of application respectively, guarantee ring The circularity of part 25.When ring 25 is expanded to predetermined size, measurement roller 8 is encountered, measurement roller 8 issues signal, and rolling terminates.

Mechanism is lengthened by the piston rod of hydraulic cylinder 9 for connecting guide roller 7, make guide roller 7 roll start when just It can be kept in contact with ring 25, resist ring 25, ring 25 is avoided to swing, so that ring 25 be enable to be rolled by stabilization.Together When, mechanism is provided with pressure roller 20, and pressure roller 20 is pressed on the inner wall of 25 lower end of ring, and pressure roller 20 turns under the drive of ring 25 It is dynamic, and moved down automatically with the increase of 25 diameter of ring under the effect of gravity, pressure roller 20 can be always maintained at and link Contact improves the inner circle circularity of ring 25 so that the inner circle to ring 25 applies a full circle power.

Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence The effect and patent practicability that the utility model is implemented.

Claims (7)

1. ring rolls pushes against mechanism, including rack, milling roller, gear unit, mandrel, set for driving milling roller to move up and down The center line of core roller, guide roller and the measurement roller being located on mandrel, milling roller and core roller is located on the same line, the guiding Roller and measurement roller are located at the two sides of core roller, it is characterised in that: the lower end of the rack is equipped with pedestal, and pedestal is equipped with vertical Bracket, the upper end of vertical supports are fixedly connected with horizontal support, and level slidably connects vertical mounting rod on horizontal support, pacify The side of dress bar towards rack offers downwardly open vertical chute, slidably connects the second sliding block in vertical chute, and second It is fixedly connected with spring between sliding block and the slot bottom of vertical chute, lateral fixing axle, fixing axle court are inserted in the second sliding block Pressure roller is rotatably connected to one end of rack.

2. ring rolls according to claim 1 pushes against mechanism, it is characterised in that: it is mobile to be additionally provided with guide roller in the rack Unit, guide roller mobile unit include the hydraulic cylinder that piston rod lengthens and guiding roller seat, and piston rod is fixedly connected with guiding roller seat, Guide roller is mounted on guiding roller seat；The mounting rod is equipped with the vertical cylinder being located at below vertical chute, vertical cylinder Piston rod is connected with the second sliding block.

3. ring rolls according to claim 2 pushes against mechanism, it is characterised in that: slidably connect cunning on the horizontal support Dynamic set, the mounting rod are slidably connected by sliding sleeve and horizontal support.

4. ring rolls according to claim 3 pushes against mechanism, it is characterised in that: the mounting rod towards the side of rack also The circular hole for installing mandrel is offered, circular hole is located at the top of vertical chute.

5. ring rolls according to claim 4 pushes against mechanism, it is characterised in that: set in the horizontal support or vertical supports There is lateral cylinder, lateral cylinder is connected with sliding sleeve or mounting rod.

6. ring rolls according to claim 5 pushes against mechanism, it is characterised in that: be equipped with bearing, the core in the circular hole Axis can plug within the bearing.

7. ring rolls according to claim 6 pushes against mechanism, it is characterised in that: the lower end of the mounting rod connects with pedestal Touching.