CN105964694B - High precision excircle roll squeezer - Google Patents

Abstract

The present invention relates to outer round surface process equipments, especially in this technical field of metal works cold extrusion, the present invention provides a kind of high precision excircle roll squeezers, it can be realized in workpiece cold extrusion from feeding, workpiece is placed between four rollers, roller is obliquely installed with workpiece, so that roller is decomposed into two component to the frictional force of workpiece when rotated, one of component is for driving workpiece rotation, another component is for driving workpiece axial feed, the extruding point of roller and metal works revolves with high pressure surface of workpiece, its point-by-point metal flow is set to generate plastic deformation, the convex peak of metal surface is rolled through roller, and slide to trench, surface tends to gentle, through point-by-point metal works after extruding, its surface roughness can disposably directly reach 0.4 μm -0.2 μm, the stock utilization of workpiece is high, workpiece Length of the machining allowance to extend workpiece, therefore can realize non-dusting workpiece surface precision processing, conducive to the protection of environment.

Description

High precision excircle roll squeezer

Technical field

The present invention relates to outer round surface process equipments, especially in this technical field of metal works cold extrusion, the present invention A kind of high precision excircle roll squeezer is provided, can be realized in workpiece cold extrusion from feeding.

Background technique

With manufacturing development, the surface roughness requirements of the metal pipe materials such as piston rod, hollow shaft are higher and higher, i.e., it It is very high to surface smoothness requirements, about 0.4 μm -0.2 μm, when producing this kind of tubing with traditional method, manufacturing procedure compared with More, normally behave as: the middle middle throwing-fine polishing of mill-fine grinding-rough polishing-of blank-corase grinding-, this traditional processing method process have six Road, every procedure require to correspond to different equipment, and the man power and material of investment is larger, and the process-cycle is long, blank, corase grinding, in Mill, fine grinding, rough polishing, middle throwing and fine polishing are to remove material method to obtain higher surface roughness with this, in six above-mentioned works A large amount of dust and waste water can be generated in sequence, wherein dust seriously endangers the health of front-line workers, and pollutes environment, works as air In dust reach a certain concentration after, generate some potential safety problems immediately, waste water needs to discharge by processing, causes to provide The waste in source, pollutes the environment simultaneously, can also occur some tube surfaces process equipments, such as China on the market at present Patent 200910043893.7 discloses a kind of piston rod finishing device and its processing technology, the finish-rolling device pass through connecting rod Piston rod to be processed is fixed on rotary power head, rotary power head drive piston rod rotation, three idler wheel finish-rolling devices with Slide carriage longitudinal movement, piston rod are pushing away firmly by slide carriage, i.e. the movement of slide carriage is to realize piston rod with respect to three under external force promotion Idler wheel finish-rolling device is mobile, and this mode pushed away firmly first has to the revolving speed according to piston rod, can just be obtained by complicated calculating The movement speed of slide carriage undoubtedly increases to obtain desired surface roughness using difficulty；This feeding mode pushed away firmly It is easy to hardly result in piston rod surface shaving into the piston rod that surface roughness is 0.4 μm -0.2 μm, the idler wheel of the finish-rolling device It is easy to be worn under the feeding mode pushed away firmly, service life is short, and when processing other tubing, which needs to clamp pipe One end end of material, to drive its rotation, but this section clamped cannot achieve processing, and this finish-rolling device needs Want two power sources, one to drive idler wheel to rotate, another axial feed to realize idler wheel opposing pistons bar, it is clear that This precision rolling equipment structure is complex, at high cost, and the effect of acquirement is undesirable.

Summary of the invention

The technical problem to be solved by the present invention is in order to solve its workpiece needs of workpiece surface process equipment in the prior art The problem of external force pushes away firmly, is just able to achieve workpiece feeding, now provides a kind of high-precision metal workpiece roll squeezer, it changes tradition Need external force push away firmly realize workpiece axial feed design, be changed to rely on roller while driving workpiece rotation to one Axial feed power realizes feeding certainly for workpiece.

The technical solution adopted by the present invention to solve the technical problems is: a kind of high precision excircle roll squeezer, including rack And power mechanism, there are three roller, wherein at least one roller is driving wheel, the roller at least rotation setting in the rack The workspace for squeezing workpiece is formed between wheel, the workpiece is located in the workspace, the outer peripheral surface of the roller with The periphery face contact of workpiece, pair workpiece engaged with roller provides axial thrust load when the roller is provided in roller rotation Mechanism, mechanism driving workpiece make axial feed.

When roller is configured to power mechanism driving driving wheel rotation in this programme, driving wheel drives workpiece rotation and by work Part drives remaining roller to rotate, and all rollers all have an axial thrust load in the same direction to workpiece, and the workpiece is in all rollers It is fed under collective effect along its axis direction, when work pieces process does rotation and the resultant motion of axial feed, when workpiece is located at work When in area, roller revolves with high pressure surface of workpiece, its point-by-point metal flow is made to generate plastic deformation, the convex peak of metal surface Rolling through roller, and trench is slided to, surface tends to gentle, and metal surface also will form one layer of fine and close metallic crystal knot of tissue Structure.

Further, the axis of the axis of the roller and workpiece is different surface beeline, i.e. the axis opposite piece of roller Axis inclination, so that roller is decomposed into two component to the frictional force of workpiece when rotated, one of component is for driving work The axis of roller is arrived the vertical join line side of axis of workpiece for driving workpiece axial feed by part rotation, another component along it To, when projecting in axis of workpiece place and the plane vertical with vertical join line, projection and work of the roller axis in the plane The angle of part axis is bigger, and the forward speed of workpiece is bigger.

Preferably, the roller surrounds the circumference array distribution of the workpiece.

Preferably, the roller and workpiece are point contact, and the contact point of the roller and workpiece is respectively positioned on same circumference On line.

Preferably, the contact point of all rollers and workpiece is evenly distributed on the circumference where it.

Since roller is typically provided to cylindrical type, workpiece is caused to be not easily accessible the workspace for squeezing workpiece, when workpiece discharges Also have some setbacks, squeezing effect is poor, and further, the roller includes wheel body, the wheel body include press section and be located at squeeze The feeder and discharging portion at portion both ends, the press section are in cylindrical type, and the feeder and discharging portion are in cone, it is described into The big end of material portion and discharging portion is close to the press section, and the small end of the feeder and discharging portion has been arranged concentrically shaft Portion.

The stress of feeder/between discharging portion and shaft is concentrated in order to prevent, further, the feeder and discharging portion Transition part is provided between the shaft of side where it respectively, the cross-sectional diameter of the transition part is greater than the transversal of shaft Face diameter, the cross-sectional diameter of the transition part are less than the cross-sectional diameter of feeder.

Due to roll squeezer its with multiple rollers, wherein driving wheel needs power source to drive, and the roller on roll squeezer Generally have multiple, since roller has certain tilt angle between each other, leads to not be driven with the same power source multiple Roller, each active roll are required to be separately provided a motor with the rotation of this drive roller wheel, to will appear entire roll squeezer The phenomenon that components are various, and structure is complicated, higher cost, high failure rate, further, if the power mechanism include pedestal and Dry gear unit, the gear unit and the driving wheel correspond, and the gear unit includes input shaft and steering group Part, the steering assembly are mounted between the input shaft and driving wheel, and the steering assembly is used to transmit the power of input shaft To driving wheel, while it universal can change setting angle of the input shaft with respect to driving wheel, the input shaft is rotatably installed in the base On seat, the input shaft on each gear unit is parallel to each other, and the pedestal is fixed in the rack.

Steering assembly has and can select as the case may be there are two types of structure:

One of structure is suitable for the more compact roll squeezer of structure, specifically: the steering assembly includes first U-shaped Seat, the second U-shaped seat and the first joint coupling, the first U-shaped seat are fixed on the end of the input shaft, and described second is U-shaped Seat be fixed on the driving wheel, on first joint coupling have it is orthogonal horizontally and vertically, described first is U-shaped Seat and horizontal axis rotation connection, the second U-shaped seat and longitudinal axis rotation connection.

Another structure is suitable for power source apart from the farther away roll squeezer of driving wheel, specifically: the steering assembly includes First U-shaped seat, the second U-shaped seat, the first joint coupling, the second joint coupling and connecting shaft, the both ends point of the connecting shaft It is not fixed with the U-shaped seat of third and the 4th U-shaped seat, the first U-shaped seat is fixed on the end of the input shaft, and described second is U-shaped Seat is fixed on the driving wheel, all has orthogonal horizontal axis on first joint coupling and the second joint coupling And the longitudinal axis, the horizontal axis rotation connection of the first U-shaped seat and the first joint coupling, the U-shaped seat of the third and the first universal company Connect the longitudinal axis rotation connection of device, the horizontal axis rotation connection of the second U-shaped seat and the second joint coupling, the 4th U-shaped seat It is rotatablely connected with the longitudinal axis of the second joint coupling, the steering assembly of this kind of structure can be easily installed, and wherein connecting shaft is for prolonging The distance between long input shaft and driving wheel.

Further, one end that the input shaft is away from the steering assembly is fixed with gear or driven pulley.

Workpiece and pedestal generate interference in order to prevent, and further, the upper end of the pedestal, which offers, avoids work pieces process When with pedestal interference notch.

Since the roll squeezer of such structure can only process the workpiece of same diameter, there is certain limitation, it is further, described Fixed there are two side plate in rack, the top of two side plates is fixed with top plate, slidably connects slide between two side plates, It is provided with the lead screw assembly for driving slide to rise or fall on the top plate, is fixed in the rack and the slide phase Pair fixing seat, driving wheel is mounted in fixing seat by bearing assembly in several rollers, remaining roller passes through bearing group Part is mounted on slide, when processing the not workpiece of caliber, adjusting screw component can realize the relatively fixed seat of slide draw close or It is separate, it is therefore, such to design the versatility for increasing the roll squeezer, it can to process the workpiece of different tube diameters.

It is very high to the planarity requirements of the medial surface of side plate since the position accuracy demand between roller is very high, nothing It doubts and increases manufacture difficulty, further, two opposite sides of the side plate offer locating slot, set in the locating slot It is equipped with matched locating piece, the locating piece is slidably arranged in the locating slot, the both ends end of the locating piece There is gap between the locating slot, be provided on two side plates translated in locating slot for adjusting locating piece or The adjusting component of rotation such as adjusts component and only adjusts locating piece translation, and the outer surface outside positioning is parallel with the bottom surface of locating slot, such as It adjusts component and only adjusts locating piece rotation, the outer surface of locating piece and the inclined bottom surface of locating slot.

Preferably, the lead screw assembly includes stud, top nut and lower nut, and the stud is fed through top plate and the cunning Seat is fixedly connected, and the top nut and lower nut are threaded on the stud, and the top nut is located at the top of top plate, The lower nut is located at the lower section of the top plate.

Preferably, the adjusting component includes that two ends adjust screw, and the end adjusts screw and the side plate spiral shell Line connection, two ends adjust the both ends that screw is located at the locating slot, and the end adjusts the end of thread of screw End is against on the locating piece, when such as translating locating piece, while being rotated two ends and being adjusted screw, when such as rotating locating blocks, It rotates one of end and adjusts screw.

Preferably, the adjusting component further includes that middle part adjusts screw, and the middle part adjusts screw and the side plate screw thread Connection, the middle part adjust the intermediate position that screw is located at the locating slot, and the end of thread end that the middle part adjusts screw is supported On the locating piece.

Preferably, the slide offers V-groove far from one end of the top plate, and there are four the rollers, two of them Roller is located on two V-type faces of the V-groove.

Preferably, the bearing assembly includes two bearing blocks, is provided with bearing, the bearing packet in the bearing block Outer ring, two inner rings and two row tapered rollers are included, two inner rings are symmetrically mounted on side by side in the outer ring, the two column circles Cone roller is symmetrically mounted between the inner ring and outer ring by retainer, is provided with spacer ring between two inner rings, described There are gaps between spacer ring and the outer ring.

Workpiece refers to that hollow metal pipe or solid metal bar, workpiece are of a straight line type in the present invention.

The beneficial effects of the present invention are: high precision excircle roll squeezer of the invention has the advantage that

1), conventional workpiece is adding man-hour requirement to pass through the surface roughness that six procedures can be only achieved, as long as existing by one Procedure greatly improves processing efficiency that is, by cold extrusion of the roller to workpiece, and simplification of flowsheet is opposite to pass The technique for workpieces processing of uniting, input manpower and material resources are substantially reduced, and the competitiveness of enterprise is improved；

2), the stock utilization of workpiece is high, length of the machining allowance of workpiece to extend workpiece, therefore can realize no powder The workpiece surface precision of dirt is processed, conducive to the protection of environment；

3), since the feeding of workpiece is to decompose the axial thrust load come driving to the frictional force of workpiece by roller, no The phenomenon that will appear scraping of workpiece surface, roller are also not easy to be worn, while simplifying the complexity of equipment, eliminate additional Drive the mechanism of workpiece feeding；

4), the density of workpiece can be improved 60% or more because of extruding, so that the intensity of workpiece also obtains certain enhancing.

Detailed description of the invention

Present invention will be further explained below with reference to the attached drawings and examples.

Fig. 1 is the schematic three dimensional views of high precision excircle roll squeezer of the present invention；

Fig. 2 is roller and bearing assembly schematic diagram in high precision excircle roll squeezer of the present invention；

Fig. 3 is the arrangement schematic three dimensional views of four rollers in the high precision excircle roll squeezer of the embodiment of the present invention 1；

Fig. 4 is the arrangement schematic side view of four rollers in the high precision excircle roll squeezer of the embodiment of the present invention 1；

Fig. 5 is the arrangement schematic top plan view of four rollers in the high precision excircle roll squeezer of the embodiment of the present invention 1；

Fig. 6 is the schematic diagram that driving wheel squeezes workpiece in the high precision excircle roll squeezer of the embodiment of the present invention 1；

Fig. 7 is the partial enlargement diagram of A in Fig. 6；

Fig. 8 is the schematic diagram that high precision excircle roll squeezer central roll wheel of the present invention acts on the power on workpiece；

Fig. 9 is the arrangement schematic three dimensional views of three rollers in the high precision excircle roll squeezer of the embodiment of the present invention 5；

Figure 10 is the arrangement schematic three dimensional views of four rollers in the high precision excircle roll squeezer of the embodiment of the present invention 6；

Figure 11 is the schematic diagram of roller in the high precision excircle roll squeezer of the embodiment of the present invention 1；

Figure 12 is the schematic three dimensional views of roller in the high precision excircle roll squeezer of the embodiment of the present invention 1；

Figure 13 is the schematic diagram of the high precision excircle roll squeezer middle (center) bearing of the embodiment of the present invention 1；

Figure 14 is the schematic diagram of steering assembly in the embodiment of the present invention 1；

Figure 15 is the schematic diagram that the present invention implements steering assembly in 2；

Figure 16 is the transmission schematic diagram in the embodiment of the present invention 1；

Figure 17 is the scheme of installation of lead screw assembly, slide and fixing seat in the embodiment of the present invention 3 and 4；

Figure 18 is the scheme of installation of 4 top plate of the embodiment of the present invention and two side plates；

Figure 19 is the schematic diagram that locating piece translates in locating slot in the embodiment of the present invention 4；

Figure 20 is the schematic diagram that locating piece rotates in locating slot in the embodiment of the present invention 4.

In figure: 1, rack, 2, roller, 201, press section, 202, feeder, 203, discharging portion, 204, transition part, 205, turn Axle portion 3, workspace；

4, input shaft, 5, steering assembly, the 501, first U-shaped seat, the 502, second U-shaped seat, the 503, first joint coupling, 504, the second joint coupling, 505, connecting shaft, 506, the U-shaped seat of third, the 507, the 4th U-shaped seat, 6, pedestal, 601, notch；

7, motor, 8, driving pulley, 9, driven pulley, 10, bearing block, 11, workpiece, 14, side plate, 14-1, locating slot, 15, top plate, 16, slide, 16-1, V-groove, 17, fixing seat, 18, stud, 18-1, top nut, 18-2, lower nut, 19, positioning Block, 20, end adjusting screw, 21, middle part adjusting screw, 22, belt, 23, transition wheel；

24, bearing, 24-1, outer ring, 24-2, inner ring, 24-3, taper roller, 24-4, retainer, 24-5, spacer ring.

Specific embodiment

In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.

Embodiment 1

As illustrated in fig. 1 and 2, a kind of high precision excircle roll squeezer, including rack 1 and power mechanism pass through bearing in rack 1 Component at least rotates setting there are four roller 2, and two of them roller 2 is driving wheel, is formed between roller 2 for squeezing workpiece 11 workspace 3, workpiece 11 are located in workspace 3, and the outer peripheral surface of roller 2 and the periphery face contact of workpiece 11, power mechanism are used In driving driving wheel rotation, roller 2 is provided in pair workpiece engaged with roller 2 11 when roller 2 rotates and provides axial thrust load Mechanism, the mechanism driving workpiece 11 make axial feed；

As shown in figs 6-8, the axis of the axis of roller 2 and workpiece 11 is different surface beeline, i.e. the axis opposite piece of roller 2 11 axis inclination, so that roller 2 is decomposed into two component to the frictional force of workpiece 11 when rotated, one of component is axis To component Fz for driving workpiece 11 to rotate, another component is radial component Fr for driving 11 axial feed of workpiece, roller 2 Axis and workpiece 11 axis between angle it is bigger, the forward speed of workpiece 11 is bigger；

As in Figure 3-5, roller 2 surrounds the circumference array distribution of workpiece 11, and roller 2 is that point connects with workpiece 11 The contact point of touching, roller 2 and workpiece 11 is respectively positioned on same circumference, and the contact point of all rollers 2 and workpiece 11 is uniformly distributed On circumference where it.

As shown in figs. 14 and 16, power mechanism includes pedestal 6 and several gear units, and gear unit and driving wheel are one by one Corresponding, gear unit includes input shaft 4 and steering assembly 5, and steering assembly 5 is mounted between input shaft 4 and driving wheel, steering group Part 5 is used to for the power of input shaft 4 being transferred to driving wheel, while universal can change setting angle of the input shaft 4 with respect to driving wheel, defeated Enter axis 4 to be rotatably installed on pedestal 6, the input shaft 4 on each gear unit is parallel to each other, and pedestal 6 is fixed in rack 1, turns Including the first U-shaped seat 501, the second U-shaped seat 502, the first joint coupling 503, the second joint coupling 504 and connect to component 5 Spindle 505, the both ends of connecting shaft 505 are respectively fixed with the U-shaped seat 506 of third and the 4th U-shaped seat 507, and the first U-shaped seat 501 is fixed In the end of input shaft 4, the second U-shaped seat 502 is fixed on driving wheel, the first joint coupling 503 and the second joint coupling All had on 504 it is orthogonal horizontally and vertically, the horizontal axis of the first U-shaped seat 501 and the first joint coupling 503, which rotates, to be connected It connects, the longitudinal axis rotation connection of the U-shaped seat 506 of third and the first joint coupling 503, the second U-shaped seat 502 and the second joint coupling The longitudinal axis rotation connection of 504 horizontal axis rotation connection, the 4th U-shaped seat 507 and the second joint coupling 504, input shaft 4 are away from One end of steering assembly 5 is fixed with gear or driven pulley 9, and one end that input shaft 4 is away from steering assembly 5 is fixed with driven belt Wheel 9 is equipped with motor 7 on roll squeezer, is fixed with driving pulley 8 on the output end of motor 7, driving pulley 8 and driven pulley 9 it Between be sequentially connected by belt 22, be also rotatably equipped with transition wheel 23 on pedestal 6, transition wheel 23 be located at the lower section of notch 601 and It is against the outside of belt 22, synchronous belt can be selected in belt 22, and the upper end of pedestal 6 offers when workpiece 11 being avoided to process and pedestal 6 The notch 601 of interference, connecting shaft 505 avoid structure excessively compact for extending the distance between input shaft 4 and driving wheel；Electricity Machine 7 is driven by belt 22 while the input shaft 4 on pedestal 6 being driven to rotate, and input shaft 4 is realized relatively main by steering assembly 5 The steering of driving wheel is installed, and driving wheel is driven to rotate specific manifestation are as follows: input shaft 4 is universal by the first U-shaped seat 501, first Connector 503 and the U-shaped seat 506 of third are drivingly connected axis 505 and rotate, and connecting shaft 505 passes through the second U-shaped seat 502, the second universal company Device 504, the 4th U-shaped driving of seat 507 rotation of driving pulley 8 are connect, the purpose of above-mentioned design is to realize the same power source simultaneously Driving mutually has angled driving wheel rotation, and the power mechanism of this design can enormously simplify the drive mechanism of roll squeezer, The failure rate of roll squeezer is reduced, cost is reduced.

As shown in Figure 11,12, roller 2 includes wheel body, wheel body include press section 201 and positioned at press section 201 both ends into Material portion 202 and discharging portion 203, press section 201 are in cylindrical type, and feeder 202 and discharging portion 203 are in cone, feeder 202 Press section 201 is close to the big end of discharging portion 203, and the small end of feeder 202 and discharging portion 203 has been arranged concentrically shaft 205, feeder 202 and discharging portion 203 are provided with transition part 204, transition part between the shaft 205 of side where it respectively 204 cross-sectional diameter is greater than the cross-sectional diameter of shaft 205, and the cross-sectional diameter of transition part 204 is less than feeder 202 Cross-sectional diameter；Feeder 202 can advance to guidance workpiece 11, carry out pre-extrusion to workpiece 11, finally completed by press section 201 Extruding to workpiece 11, it is smooth that the workpiece 11 for squeezing and completing can be used to discharge for discharging portion 203, and unobstructed, press section 201 is to work When part 11 is processed, wheel body load is higher, and feeder 202 and transition part 204 is arranged simultaneously in the two sides of press section 201, can be dispersed The load of wheel body when so that press section 201 squeezing workpiece 11, squeezes the intermediate position that point is located at the wheel body, improves the extruding Take turns and be mounted on the service life of 205 bearings at both ends 24 of shaft；The small end margin rounded corner of feeder 202, discharging portion 203 Small end margin rounded corner can prevent the edge of 202/ discharging portion 203 of feeder from colliding with and generate unfilled corner, feeder 202 and discharging portion 203 axial width is equal；The axial width of feeder 202 and discharging portion 203 can be designed to the axial direction greater than press section 201 Width, so as to feeder 202 can be gentle extruding workpiece 11, eventually pass through isometrical press section 201 tube reducing polishing.

Since when squeezing workpiece 11, the bearing 24 at 2 both ends of roller can bear biggish axially and radially load, common Often the replacement cycle is fast for bearing 24, therefore axis bearing assembly of the present invention includes two bearing blocks 10, is provided in bearing block 10 Bearing 24, as shown in figure 13, bearing 24 include outer ring 24-1, two inner ring 24-2 and two row tapered roller 24-3, two inner rings 24-2 is symmetrically mounted on side by side in the 24-1 of outer ring, and two row tapered roller 24-3 are symmetrically mounted on inner ring 24-2 by retainer 24-4 Between the 24-1 of outer ring, spacer ring 24-5 is provided between two inner ring 24-2, there are gap between spacer ring 24-5 and outer ring 24-1, The bearing 24 of such structure bears biggish axially and radially load simultaneously, and the transition part 204 of roller 2 is against the inner ring of bearing 24 On 24-2, the axially position of roller 2 is completed.

Workpiece 11 refers to that hollow metal pipe or solid metal bar, workpiece 11 are of a straight line type in the present invention.

Embodiment 2

As shown in figure 15, embodiment 2 the difference from embodiment 1 is that: steering assembly 5 include the first U-shaped seat 501, the 2nd U Type seat 502 and the first joint coupling 503, the first U-shaped seat 501 are fixed on the end of input shaft 4, and the second U-shaped seat 502 is fixed on On driving wheel, on the first joint coupling 503 have it is orthogonal horizontally and vertically, the first U-shaped seat 501 and horizontal axis rotation connect It connects, the second U-shaped seat 502 and longitudinal axis rotation connection.

Embodiment 3

As shown in figure 17, embodiment 2 the difference from embodiment 1 is that: it is fixed in rack 1 that there are two side plate 14, two sides The top of plate 14 is fixed with top plate 15, and slide 16, the one end of slide 16 far from top plate 15 are slidably connected between two side plates 14 V-groove 16-1 is offered, the lead screw assembly for driving slide 16 to rise or fall is provided on top plate 15, is fixed in rack 1 Have and be relatively fixed seat 17 with slide 16, two driving wheels are mounted in fixing seat 17 by bearing assembly, and other two is driven Roller 2 is mounted on slide 16 by bearing assembly, and lead screw assembly includes stud 18, top nut 18-1 and lower nut 18-2, spiral shell Column 18 is fed through top plate 15 and is fixedly connected with slide 16, and top nut 18-1 and lower nut 18-2 are threaded on stud 18, Top nut 18-1 is located at the top of top plate 15, and lower nut 18-2 is located at the lower section of top plate 15, drives slide 16 by lead screw assembly Linear motion up and down, adjusting screw component can realize the relatively fixed seat 17 of slide 16 draw close or it is separate, when processing not caliber Workpiece 11 when, rotation top nut 18-1, lower nut 18-2 can be corresponded to and be adjusted, therefore increase the general of the roll squeezer Property, it can process the workpiece 11 of different tube diameters；Lead screw assembly can also include stud 18 and guiding using another structure Bar, guide rod one end are fixed on slide 16, and are slidably connected with top plate 15, and stud 18 is threadedly coupled with top plate 15, stud 18 It is rotatablely connected with slide 16, when rotating stud 18, slide 16 rises or falls with respect to top plate 15；Lead screw assembly can also be adopted as Including two studs 18, two studs 18 are located at the two sides of slide 16 and are fixedly connected with slide 16, on each stud 18 It is threadedly coupled there are two nut, the two nuts are located at the two sides up and down of top plate 15, this design slide 16 movement Straightness is high, but adjusts and be more troublesome, and needs to rotate the top nut 18-1 of two studs 18 simultaneously.

Embodiment 4

As shown in FIG. 17 and 18, embodiment 4 is with the difference for implementing 3: the opposite side of two side plates 14 offers Matched locating piece 19 is provided in locating slot 14-1, locating slot 14-1, locating piece 19 is slidably arranged in locating slot 14- In 1, there is gap between the both ends end and locating slot 14-1 of locating piece 19, it is fixed for adjusting to be provided on two side plates 14 The adjusting component that position block 19 is translated or rotated in locating slot 14-1, adjusting component includes that two ends adjust screw 20, end It adjusts screw 20 to be threadedly coupled with side plate 14, two ends adjust the both ends that screw 20 is located at locating slot 14-1, end tune The end of thread end of section screw 20 is against on locating piece 19, and adjusting component further includes that middle part adjusts screw 21, and middle part adjusts screw 21 are threadedly coupled with side plate 14, and middle part adjusts the intermediate position that screw 21 is located at locating slot 14-1, and middle part adjusts the spiral shell of screw 21 Line end end is against on locating piece 19, as shown in figure 19, is such as adjusted component and is only adjusted the translation of locating piece 19, the outer surface outside positioning It is parallel with the bottom surface of locating slot 14-1, as shown in figure 20, such as adjusts component and adjust the rotation of locating piece 19, the outer surface of locating piece 19 With the inclined bottom surface of locating slot 14-1, this design can be easily installed commissioning device, reduce manufacturing machine installation difficulty, specifically such as Under: slide 16 is pre-installed to designated position by stud 18, top nut 18-1 and lower nut 18-2 by first choice, and workpiece 11 is put It sets between four rollers 2, starts roll squeezer, then adjust the end screw and middle part screw of two side plates 14, change positioning The orientation of block 19 illustrates to have been mounted to position, screws end screw and middle part spiral shell at this time when four all rotations of roller 2 Nail, locating piece 19 are against the two sides of slide 16, and slide 16 is limited, and simplify installation and debugging process, and ensure that slide 16 along stud 18 axis direction straight-line displacement, moreover it is possible to eliminate the finishing of 14 medial surface of side plate.

Embodiment 5

As shown in figure 9, embodiment 4 the difference from embodiment 1 is that: there are three rollers 2, and the axis of three rollers 2 surrounds The circumference array distribution of workpiece 11.

Embodiment 6

As shown in Figure 10, embodiment 6 the difference from embodiment 1 is that: there are five rollers 2, and the axis of five rollers 2 surrounds The circumference array distribution of workpiece 11.

The more squeezing effects of 2 quantity of roller are better.

The working principle of the invention is illustrated with embodiment 1:

Power mechanism drives two driving wheel rotations, and workpiece 11 is placed between four rollers 2, since roller 2 is opposite Workpiece 11 is obliquely installed, and roller 2 is decomposed into two component to the frictional force f of workpiece 11 when rotated, and one of component is axis To component Fz for driving workpiece 11 to rotate, another component is radial component Fr for driving 11 axial feed of workpiece, workpiece 11 realize that the extruding point of roller 2 and metal works 11 is to metal from feeding under the axial thrust load Fz collective effect of all rollers 2 11 surface of workpiece is revolved with high pressure, is generated its point-by-point metal flow and is plastically deformed, convex peak the rolling through roller 2 of metal surface, And trench is slided to, surface tends to gentle, and the extruding track of the extruding point opposite piece 11 on same roller 2 is in same helix On, 0.4 μm -0.2 μm can be disposably directly reached through point-by-point its surface roughness of metal works 11 after extruding；The material of workpiece 11 Expect that utilization rate is high, length of the machining allowance of workpiece 11 to extend workpiece 11, therefore can realize non-dusting 11 surface of workpiece Precision processing, conducive to the protection of environment；It is the axis from the frictional force decomposition by roller 2 to workpiece 11 due to the feeding of workpiece 11 It is driven to component, therefore the phenomenon that be not in 11 scraping of surface of workpiece, roller 2 is also not easy to be worn；The density of workpiece 11 because Extruding can be improved 60% or more, so that the intensity of workpiece 11 also obtains certain enhancing.Workpiece 11 is by the mistake of 2 cold extrusion of roller Cheng Zhonghui is by tube reducing and polishing.

Above-mentioned desirable embodiment according to the present invention is enlightenment, and through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention'.This invention it is technical Range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.

Claims (19)

1. a kind of high precision excircle roll squeezer, for carrying out extrusion process to workpiece (11) outer peripheral surface to reduce workpiece (11) periphery The surface roughness in face, it is characterised in that: including rack (1) and power mechanism, at least rotation is provided with three on the rack (1) A roller (2), wherein at least one roller (2) are driving wheel, are formed between the roller (2) for squeezing workpiece (11) Workspace (3), the workpiece (11) is located in the workspace (3), the outer peripheral surface of the roller (2) and workpiece (11) it is outer All face contacts, for the power mechanism for driving the driving wheel to rotate, the roller (2) is provided in roller (2) rotation When pair workpiece (11) engaged with roller (2) the mechanism of axial thrust load is provided, axial feed is made in mechanism driving workpiece (11), from And roller (2) and the extruding point of metal works (11) revolve with high pressure metal works (11) surface, produce its point-by-point metal flow Raw plastic deformation, convex peak the rolling through roller (2) of metal surface, and trench is slided to, surface tends to gentle.

2. high precision excircle roll squeezer according to claim 1, it is characterised in that: the axis and workpiece of the roller (2) (11) axis is different surface beeline.

3. high precision excircle roll squeezer according to claim 1 or 2, it is characterised in that: the roller (2) surrounds the work The circumference array distribution of part (11).

4. high precision excircle roll squeezer according to claim 3, it is characterised in that: the roller (2) and workpiece (11) are equal For point contact, the contact point of the roller (2) and workpiece (11) is respectively positioned on same circumference.

5. high precision excircle roll squeezer according to claim 4, it is characterised in that: all rollers (2) and workpiece (11) Contact point is evenly distributed on the circumference where it.

6. the high precision excircle roll squeezer according to claim 1, it is characterised in that: the roller (2) includes wheel body, institute Stating wheel body includes press section (201) and the feeder (202) and discharging portion (203) for being located at press section (201) both ends, the extruding Portion (201) is in cylindrical type, and the feeder (202) and discharging portion (203) are in cone, the feeder (202) and discharging The big end in portion (203) is close to the press section (201), and the small end of the feeder (202) and discharging portion (203) is set with one heart It is equipped with shaft (205).

7. high precision excircle roll squeezer according to claim 6, it is characterised in that: the feeder (202) and discharging portion (203) it is provided with transition part (204) between the shaft (205) of side where it respectively, the cross section of the transition part (204) Diameter is greater than the cross-sectional diameter of shaft (205), and the cross-sectional diameter of the transition part (204) is less than feeder (202) Cross-sectional diameter.

8. high precision excircle roll squeezer according to claim 1, it is characterised in that: the power mechanism includes pedestal (6) And several gear units, the gear unit and the driving wheel correspond, the gear unit include input shaft (4) and Steering assembly (5), the steering assembly (5) are mounted between the input shaft (4) and driving wheel, and the steering assembly (5) is used In the power of input shaft (4) is transferred to driving wheel, while it universal can change the setting angle of input shaft (4) with respect to driving wheel, institute It states input shaft (4) to be rotatably installed on the pedestal (6), the input shaft (4) on each gear unit is parallel to each other, the pedestal (6) it is fixed on the rack (1).

9. high precision excircle roll squeezer according to claim 8, it is characterised in that: the steering assembly (5) includes the first U Type seat (501), the second U-shaped seat (502) and the first joint coupling (503), the first U-shaped seat (501) are fixed on described defeated Enter the end of axis (4), the second U-shaped seat (502) is fixed on the driving wheel, on first joint coupling (503) With it is orthogonal horizontally and vertically, the first U-shaped seat (501) and horizontal axis rotation connection, the second U-shaped seat (502) It is rotatablely connected with the longitudinal axis.

10. high precision excircle roll squeezer according to claim 8, it is characterised in that: the steering assembly (5) includes first U-shaped seat (501), the second U-shaped seat (502), the first joint coupling (503), the second joint coupling (504) and connecting shaft (505), the both ends of the connecting shaft (505) are respectively fixed with the U-shaped seat of third (506) and the 4th U-shaped seat (507), the first U Type seat (501) is fixed on the end of the input shaft (4), and the second U-shaped seat (502) is fixed on the driving wheel, described All had on first joint coupling (503) and the second joint coupling (504) it is orthogonal horizontally and vertically, described first The rotation connection of the horizontal axis of U-shaped seat (501) and the first joint coupling (503), the U-shaped seat of third (506) and the first universal company The longitudinal axis rotation connection of device (503) is connect, the horizontal axis rotation of the second U-shaped seat (502) and the second joint coupling (504) connects It connects, the longitudinal axis rotation connection of the 4th U-shaped seat (507) and the second joint coupling (504).

11. high precision excircle roll squeezer according to claim 8, it is characterised in that: the input shaft (4) is away from described One end of steering assembly (5) is fixed with gear or driven pulley (9).

12. high precision excircle roll squeezer according to claim 8, it is characterised in that: the upper end of the pedestal (6) offers Avoid the notch (601) of workpiece (11) when processing with pedestal (6) interference.

13. high precision excircle roll squeezer according to claim 1, it is characterised in that: there are two fixed on the rack (1) The top of side plate (14), two side plates (14) is fixed with top plate (15), slidably connects slide between two side plates (14) (16), it is provided with the lead screw assembly for driving slide (16) to rise or fall on the top plate (15), consolidates on the rack (1) Surely have and be relatively fixed seat (17) with the slide (16), driving wheel is mounted on by bearing assembly in several rollers (2) In fixing seat (17), remaining roller (2) is mounted on slide (16) by bearing assembly.

14. high precision excircle roll squeezer according to claim 13, it is characterised in that: two side plates (14) are opposite Side offer locating slot (14-1), is provided with matched locating piece (19), institute in the locating slot (14-1) It states locating piece (19) to be slidably arranged in the locating slot (14-1), the both ends end of the locating piece (19) and the locating slot There is gap between (14-1), be provided on two side plates (14) for adjusting locating piece (19) at locating slot (14-1) The adjusting component of middle translation or rotation.

15. high precision excircle roll squeezer according to claim 13, it is characterised in that: the lead screw assembly includes stud (18), top nut (18-1) and lower nut (18-2), it is fixed that the stud (18) is fed through top plate (15) and the slide (16) Connection, the top nut (18-1) and lower nut (18-2) are threaded on the stud (18), the top nut (18- 1) it is located at the top of top plate (15), the lower nut (18-2) is located at the lower section of the top plate (15).

16. high precision excircle roll squeezer according to claim 14, it is characterised in that: the adjusting component includes two ends Portion adjusts screw (20), and the end adjusts screw (20) and is threadedly coupled with the side plate (14), and two ends adjust spiral shell Nail (20) is located at the both ends of the locating slot (14-1), and the end of thread end that the end adjusts screw (20) is against described On locating piece (19).

17. high precision excircle roll squeezer according to claim 16, it is characterised in that: the adjusting component further includes middle part It adjusts screw (21), the middle part adjusts screw (21) and is threadedly coupled with the side plate (14), and the middle part adjusts screw (21) Positioned at the intermediate position of the locating slot (14-1), the end of thread end that the middle part adjusts screw (21) is against the locating piece (19) on.

18. high precision excircle roll squeezer according to claim 13, it is characterised in that: the slide (16) is far from the top One end of plate (15) offers V-groove (16-1), and there are four the rollers (2), and two of them roller (2) is located at the V On two V-type faces of type groove (16-1).

19. high precision excircle roll squeezer according to claim 13, it is characterised in that: the bearing assembly includes two axis It holds seat (10), is provided with bearing (24) in the bearing block (10), the bearing (24) includes outer ring (24-1), two inner rings (24-2) and two row tapered rollers (24-3), two inner rings (24-2) are symmetrically mounted on side by side in the outer ring (24-1), The two column taper rollers (24-3) by retainer (24-4) be symmetrically mounted on the inner ring (24-2) and outer ring (24-1) it Between, it is provided with spacer ring (24-5) between two inner rings (24-2), between the spacer ring (24-5) and the outer ring (24-1) There are gaps.