CN113510252A

CN113510252A - Double-spindle inverted numerically controlled lathe

Info

Publication number: CN113510252A
Application number: CN202110478578.8A
Authority: CN
Inventors: 魏全跃
Original assignee: Zhejiang Zhongzhi Jinggong Intelligent Equipment Co ltd
Current assignee: Zhejiang Zhongzhi Jinggong Intelligent Equipment Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-10-19

Abstract

The invention provides a double-spindle inverted numerically controlled lathe, which solves the problems of manual reversing machining and turning of workpieces and the like and comprises a lathe body, wherein a feeding frame is arranged on one side of the lathe body, a belt conveyor is arranged on the other side of the lathe body, two inverted cutting spindles are arranged above the lathe body through a movable guide rail assembly, servo tool rests opposite to the cutting spindles are respectively arranged below the cutting spindles, and a bar reversing mechanism for transferring machined bars is arranged between the cutting spindles. The invention has the advantages of high processing efficiency, good operation stability and the like.

Description

Double-spindle inverted numerically controlled lathe

Technical Field

The invention belongs to the technical field of numerically controlled lathes, and particularly relates to a double-spindle inverted numerically controlled lathe.

Background

The vertical lathe is different from the common lathe in that the main shaft of the vertical lathe is vertical, which is equivalent to the common lathe is vertically arranged. The workbench is in a horizontal position, so that the machine is suitable for processing heavy parts with large diameter and short length. The vertical tool rest on the vertical lathe can move along the cross beam guide rail and the tool rest seat guide rail to perform transverse or longitudinal feeding. The tool rest base can deflect a certain angle for oblique feeding. The side tool rest can move up and down along the upright post guide rail and can also move left and right along the tool rest sliding seat to realize longitudinal or transverse feeding. The vertical lathe belongs to large mechanical equipment and is used for processing large and heavy workpieces with large radial dimension, relatively small axial dimension and complex shapes. Such as cylindrical surfaces, end surfaces, conical surfaces, cylindrical holes, conical holes and the like of various disc, wheel and sleeve workpieces. The additional device can also be used for machining threads, spherical surfaces, profiling, milling, grinding and the like. Compared with a horizontal lathe, the workpiece is clamped in the clamping decoration of the horizontal lathe. The axis of the spindle of the vertical lathe is in a vertical layout, and the table surface of the working table is in a horizontal plane, so that the workpiece is convenient to clamp and align. The layout reduces the load of the main shaft and the bearing, so that the vertical lathe can keep the working precision for a long time. However, in the actual use process, the vertical lathe with the single-spindle design has low efficiency for processing large-batch parts. In addition, two ends of a part of shaft workpieces need to be processed respectively, and a conventional vertical lathe needs to be manually reversed, so that the shaft workpieces are not beneficial to mass production.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, chinese patent document discloses an inverted combined numerically controlled lathe automated production stub [200520022008.4], in which an inverted spindle unit and an upright rotary tool post are respectively attached to left and right side portions of an upper bed, the inverted rotary tool post and the upright spindle unit are fixedly attached to a middle portion of a lower bed, a loading robot is attached to a side portion of the upright rotary tool post, a positioning device is provided on a side portion of the lower bed on the inverted rotary tool post, and a loading device and a unloading device are respectively attached below outer side portions of the upright rotary tool post and the inverted spindle unit.

The scheme solves the problem of low continuous machining efficiency of parts to a certain extent, but the scheme still has a plurality of defects, such as manual reversing, inconvenience for bidirectional machining of shaft workpieces and the like.

Disclosure of Invention

The invention aims to solve the problems and provides a double-spindle inverted numerically controlled lathe which is reasonable in design and can realize automatic reversing continuous machining of workpieces.

In order to achieve the purpose, the invention adopts the following technical scheme: the double-spindle inverted numerically controlled lathe comprises a lathe body, wherein a feeding frame is arranged on one side of the lathe body, a belt conveyor is arranged on the other side of the lathe body, two cutting spindles which are arranged in an inverted mode are mounted above the lathe body through a movable guide rail assembly, servo tool rests opposite to the cutting spindles are arranged below the cutting spindles respectively, and a bar reversing mechanism for transferring processed bars is arranged between the cutting spindles. The bar reversing mechanism can realize bar transfer and reversing of the upper end and the lower end, facilitates the turning of the cutting main shaft to the two ends of the bar respectively, and is suitable for bidirectional continuous processing of large-batch workpieces.

In the double-spindle inverted numerically controlled lathe, the bar reversing mechanism comprises two symmetrically arranged rotating arm assemblies, each rotating arm assembly is provided with a rotating shaft which is arranged above the lathe body and extends longitudinally along the lathe body, the rotating shafts are parallel to each other and are rotatably connected with the lathe body, a vertically arranged mounting upright post is arranged above the lathe body, each mounting upright post is provided with a rotating hole for the rotating shaft to penetrate through, the end of each rotating shaft is connected with the output end of a rotating motor arranged at the back of the lathe body, a rotating plate which is vertical to the rotating shaft is fixed at the other end of each rotating shaft, a chuck assembly is arranged on one side, opposite to the rotating plate, and a telescopic mechanism is arranged between each chuck assembly and the rotating plate. The installation stand is used for installing the gyration arm subassembly, and rotary motor fixes at the installation stand back simultaneously, avoids the foreign matter to invade the motor, and the chuck subassembly is relatively independent for centre gripping disc or short rod material, and telescopic machanism can drive the transfer that the chuck subassembly accomplished the work piece for the work piece is transferred the process and is steadily gone on.

In the double-spindle inverted numerically controlled lathe, a vertically arranged mounting upright column is mounted above a lathe body, a rotary hole for a rotary shaft to pass through is formed in the mounting upright column, a chuck assembly comprises a cylindrical chuck base body, a plurality of jaws which are symmetrical relative to the center of the chuck base body and are driven by hydraulic pressure are arranged at the end of the chuck base body, a telescopic mechanism comprises a telescopic cylinder fixed on one side of a rotating plate, a telescopic table connected with the chuck assembly is fixed at the end of a telescopic rod of the telescopic cylinder, a telescopic limiting mechanism is arranged between the telescopic table and the telescopic cylinder, the telescopic limiting mechanism comprises a limiting column parallel to the telescopic rod, a limiting bulge symmetrical relative to the center of the telescopic table is arranged on the side surface of the telescopic table, the limiting column is fixedly connected with the limiting bulge, a limiting hole for the limiting column to insert is formed in one end of the telescopic cylinder opposite to the telescopic table, the limiting column axially extends relative to the limiting hole, the chuck assembly between rotary arm assemblies is oppositely arranged and the central axis of the chuck assembly is matched with the rotary shaft, two vertical main shafts are installed above the lathe body, the rotary arm assembly is arranged between the vertical main shafts, through holes for installing the telescopic mechanism and the chuck assembly are formed in the rotating plate, the central axes of the through holes in the rotating plate, which are vertically symmetrically arranged, are matched, the chuck assemblies between the rotary arm assemblies are oppositely arranged, the central axes of the chuck assemblies are matched, a distance for clamping bars is reserved between the chuck assemblies of the rotary arm assembly in opposite, and the rotary motor, the chuck assemblies and the telescopic mechanism are connected with the numerical control module. The telescopic limiting mechanism improves the stability of transferring workpieces, guarantees that workpieces clamped by the chuck assemblies move axially, the centers of the chuck assemblies are opposite, when the rotary arm assemblies rotate to opposite positions, bayonets of the chuck assemblies are mutually matched, the vertical main shaft is respectively used for processing two ends of the workpieces, the workpiece processing efficiency is improved, the through holes are used for installing the telescopic mechanism and the chuck assemblies, meanwhile, the center of the rotary arm assemblies is convenient to locate and fix, a certain distance is kept between the rotary arm assemblies, and clamped bars cannot collide with another rotary arm assembly when being overturned along with the rotary arm assemblies.

In the above-mentioned double-spindle inverted numerically controlled lathe, the movable guide rail assembly includes a slide base mounted on the lathe body, a lateral movement mechanism for driving the slide base to move laterally relative to the lathe body is provided between the slide base and the lathe body, and the slide base is provided with a slide table body capable of moving up and down relative to the slide base via a vertical movement mechanism. The movable guide rail component drives the cutting main shaft to quickly set the tool, and numerical control machining is achieved.

In the double-spindle inverted numerically controlled lathe, the transverse moving mechanism comprises two parallel transverse slide rails extending along the transverse direction of the lathe body, a plurality of transverse slide blocks clamped with the transverse slide rails are fixed on one side of the sliding base body opposite to the transverse slide rails, transverse limiting grooves are respectively formed above and below the transverse slide rails, transverse limiting bulges clamped with the transverse limiting grooves are formed on the transverse slide blocks, a backing plate is arranged between the transverse slide blocks and the sliding base body, a transverse driving mechanism is installed at one end of the lathe body and adopts gear and rack transmission, lead screw transmission or hydraulic/pneumatic transmission, the vertical moving mechanism comprises two vertical slide rails which are parallel and extend along the vertical direction of the sliding base body, a plurality of vertical slide blocks clamped with the vertical slide rails are fixed on one side of the sliding base body opposite to the vertical slide rails, and vertical limiting grooves are respectively formed on two sides of the vertical slide rails, the vertical limiting protrusion clamped with the vertical limiting groove is formed in the vertical sliding block, a plurality of sliding rail pressing blocks are arranged between the vertical sliding rail and the sliding table body, the flange support is installed above the sliding base body, the vertical driving mechanism is installed between the flange support and the sliding table body and comprises a servo motor installed above the flange support, the output end of the servo motor faces downwards and is connected with a driving lead screw through a coupling, a lead screw base body is installed on the sliding table body, and a lead screw nut is installed at the center of the lead screw base body and connected with the driving lead screw. The transverse moving mechanism drives the sliding base body to transversely move, the plurality of parallel transverse sliding rails improve the operation stability of the transverse moving mechanism, a proper transverse driving mechanism is selected according to actual needs, the vertical moving mechanism is combined with the vertical sliding block through the vertical sliding rails, the flange support above the sliding table body is provided with the vertical driving mechanism for driving, and the vertical driving mechanism adopts a lead screw driving mode, so that the sliding table body can be lifted up and down in a stepless mode, and the workpiece setting accuracy is improved.

In the double-spindle inverted numerically controlled lathe, a side cover plate is arranged at the lower end of a sliding table body and is arranged between an electric spindle assembly and a hydraulic chuck, a front baffle plate is fixed at one side, opposite to the sliding table body, below the side cover plate, an upper baffle plate is fixed at the other side, a scrap blocking cover is fixed at the lower side of the side cover plate, opposite to the side of the hydraulic chuck, a top cover plate for blocking the side of a cutting spindle is fixed above the side cover plate, an oil pipe support is fixed on the sliding table body, a plurality of guide holes for oil supply pipes to penetrate are formed in the oil pipe support, grease distributors are respectively arranged at two sides of a sliding seat body, the cutting spindle comprises a spindle box arranged on the sliding table body, an electric spindle body is arranged at the center of the spindle box along the vertical direction, a rotary hydraulic cylinder is fixed above the electric spindle body and is connected with the hydraulic chuck arranged at the lower end of the electric spindle body through a pull rod, and a cooling sleeve is sleeved outside the electric spindle body, the cooling jacket outside is opened and is had the cooling tank that the annular coiled the setting, the cover has the clamp ring between the main shaft cover outside of cooling jacket top outside and headstock top, it has the breach and is provided with the adjusting bolt who adjusts the clamp ring elasticity between and on the clamp ring to open, the cooling jacket outside is opened has the seal groove relative with the headstock inboard, the seal groove endotheca has the sealing ring that compresses tightly with the headstock laminating, electric main shaft body center is opened has the trompil that supplies the pull rod to pass, electric main shaft body lower extreme outside is provided with compresses tightly fixed sealed section of thick bamboo and the separate dress ring of cover in the sealed section of thick bamboo outside with the cooling jacket lower extreme, hydraulic chuck includes the chuck main part and the clamping jaw piece that relative chuck main part centrosymmetric set up, the chuck main part is connected and leaves the space between chuck main part and the clamping jaw piece through clamping jaw piece, clamping jaw piece relative one side is provided with fixed slot and the fixed strip that peg graft mutually and cross the setting. Each cover plate keeps apart chuck and electric main shaft subassembly, avoid smear metal and cutting fluid to splash and influence normal operating such as slide rail and lead screw, oil pipe support lubricates the lead screw guide rail with grease distributor guide lubricating oil, guarantee its operating stability, the cooling bath in the cooling jacket outside is when the refrigeration fluid flows, take away the heat in the electric main shaft subassembly, the cooling bath coils the setting, produce malleation isolation external fluid at rotatory in-process, the clamp ring has improved the leakproofness of cooling jacket with the main shaft lid junction under the effect of clamping force, the pull rod is the pulling from top to bottom in the trompil, the pull rod lower extreme passes sealed cylinder and separates the dress ring and be connected with hydraulic chuck, fixed slot and fixed strip cross arrangement, make clamping jaw piece installation stability improve, difficult not hard up in clamping process.

In the double-spindle inverted numerically controlled lathe, a chip removal device is arranged below the lathe body and comprises a lower shell arranged below the lathe body, the lower shell is in a strip shape, a chip collection cavity is formed inside the lower shell, a chip inlet is formed in the upper portion of the lower shell, one end of the lower shell is connected with an inclined shell which is arranged obliquely, an upper shell is connected above the inclined shell, a chip removal cavity is formed inside the upper shell, a chip removal port communicated with the chip removal cavity is formed in the lower portion of the upper shell, a chip removal channel communicated with the chip removal cavity is formed in the inclined shell, a driving mechanism is arranged above the upper shell, the driving mechanism is connected with a conveyor belt assembly, the conveyor belt assembly is arranged among the chip removal cavity, the chip removal channel and the chip collection cavity, the chip inlet of the lower shell is opposite to the chip collection port below the front portion of the lathe body, the lower shell extends to the rear portion of the lathe body from the front portion of the lathe body, and the inclined shell and the upper shell are arranged on the back portion of the lathe body, the internal negative pressure chamber that is provided with of inferior valve, the smear metal is collected the chamber both sides and is opened the negative pressure mouth that has with the negative pressure chamber intercommunication, centrifugal pump and centrifugal pump access negative pressure chamber are installed to inferior valve body and the relative one end top of oblique casing, and inferior valve body and oblique casing handing-over department top are provided with the socket relative with the negative pressure chamber, and the socket interpolation has the filtering baffle, and smear metal collection chamber top entering bits mouth department is provided with the bits board that leads that the slope set up, and the negative pressure mouth is the bar and arranges the setting in leading bits board below. The main casing of chip removal device sets up in lathe main part below and back, does not influence its the place ahead normal machining operation, wherein descend the internal negative pressure suction that produces through the centrifugal pump of inferior valve to avoid the less smear metal of quality to fall into smear metal and collect the intracavity and produce and splash, filter baffle avoids the smear metal to inhale the centrifugal pump and causes the damage to the centrifugal pump, and the guide chip board guide smear metal slides in the smear metal and collects the intracavity, and its negative pressure mouth sets up in guide chip board below, avoids the smear metal to directly inhale the negative pressure chamber.

In the double-spindle inverted numerically controlled lathe, a plurality of support bars are arranged below the chip collecting cavity, the support bars are C-shaped, two ends of the support bars are respectively fixed with the side surface of the lower shell, adjusting holes extending along the transverse direction are respectively formed in two sides of the upper shell, an adjusting shell is covered outside the adjusting holes, adjusting strips extending along the transverse direction and respectively arranged above and below the adjusting holes are arranged in the adjusting shell, an adjusting seat capable of sliding relative to the adjusting strips is clamped between the adjusting strips, adjusting grooves matched with the adjusting strips are formed in the upper and lower sides of the adjusting seat, belt wheel mounting holes opposite to the adjusting holes and relative to the conveying belt assembly are formed in the adjusting seat, adjusting bolts in threaded connection with the adjusting shell are mounted on one side of the adjusting seat, the driving mechanism comprises a mounting table fixed above the upper shell, a plurality of studs for adjusting the height of the mounting table relative to the upper shell are arranged between the mounting table and the upper shell, the mounting table top is fixed with driving motor, the driving motor output passes through sprocket drive mechanism drive conveyer belt subassembly motion, the sprocket drive mechanism outside is provided with the sprocket cover plate, the outside below of inferior valve body is provided with a plurality of supporting seats, install under the supporting seat and support sufficient and/or universal wheel, conveyer belt subassembly is including rotating the conveyer belt of installing in chip removal chamber and chip collection intracavity, be provided with the conveyer belt between the conveyer belt, the conveyer belt laminating sets up and collects chamber and chip removal passageway bottom at the smear metal. The support bar has improved the structural strength in smear metal collection chamber, a be used for bearing the weight of the conveyer belt subassembly, it is adjustable to adjust the seat position, thereby keep conveyer belt subassembly structure steady, the mount table can be adjusted from top to bottom, with adjusting the different actuating mechanism of seat cooperation adaptation, sprocket drive mechanism drives the conveyer belt subassembly operation, realize getting rid of in succession of smear metal, conveyer belt drives the conveyer belt operation, can collect the smear metal lifting back input of intracavity with the smear metal and store up centralized processing in the bits device, leave certain space between conveyer belt and the casing and be used for transporting of smear metal.

In the double-spindle inverted numerically controlled lathe, the servo tool rest comprises a tool rest upright post arranged on a lathe body, a rotary tool turret is fixed on one side of the tool rest upright post, which is opposite to a spindle, a tool rest motor of the rotary tool turret is inserted and fixed in the tool rest upright post, the rotary tool turret adopts a rear tool rest, a tool rest base is arranged between the rear tool rest and the tool rest motor, a locking mechanism is arranged between the tool rest base and the rear tool rest, the central plane of the rear tool rest is vertical to the horizontal plane, a fixing mechanism is arranged between the tool rest base and the upper part of the lathe body, a numerically controlled module connected with the tool rest motor and the locking mechanism is arranged in the rotary tool turret, the rear tool rest is provided with a plurality of tool clamping stations which are symmetrical relative to the center of the rear tool rest, and a first hydraulic clamping mechanism is fixed on the tool clamping stations, and the second hydraulic clamping mechanism or the third hydraulic clamping mechanism is arranged in the rotary tool turret and is internally provided with a hydraulic driving module connected with the numerical control module. The knife rest motor is arranged in the knife rest upright post, and meanwhile, the rear knife tower is vertically arranged, so that cutting chips or cutting fluid are prevented from falling into the knife tower or the motor in the cutting process, and the knife rest is protected well.

In the double-spindle inverted numerically controlled lathe, the first hydraulic clamping mechanism comprises a first clamping groove which is arranged on the end face of the rear cutter tower and extends along the radial direction, a first clamping block connected with the hydraulic drive module is arranged on the inner side of the first clamping groove, the second hydraulic clamping mechanism comprises a hydraulic seat fixed on the side face of the rear cutter tower, a second clamping groove extending along the axial direction of the rear cutter tower is arranged on the outer side of the hydraulic seat, a second clamping block connected with the hydraulic drive module is arranged on the inner side of the second clamping groove, the third hydraulic clamping mechanism comprises a hydraulic table fixed on the side face of the rear cutter tower, a clamping hole extending along the axial direction of the rear cutter tower is arranged in the center of the hydraulic table, a clamping bolt with an end opposite to the inner side of the clamping hole is in threaded connection with one side of the hydraulic table, the locking mechanism is a triple fluted disc arranged between the cutter frame base and the rear cutter tower, and the triple fluted disc is connected with the hydraulic drive module, the hydraulic driving module is a hydraulic driving cylinder and a hydraulic distribution oil way connected with the hydraulic driving cylinder, the fixing mechanism comprises fixing strips arranged on two sides below the tool rest base body, a plurality of fixing notches are formed in the fixing strips, and the rear tool turret is opposite to a chip removal port below the lathe body. A plurality of cutter clamping stations and clamping mechanisms are arranged on the rear cutter tower, and various cutters can be mounted, so that the cutting requirements of different workpieces are met.

Compared with the prior art, the invention has the advantages that: the automatic workpiece transferring and reversing device can automatically transfer and reverse a workpiece, and facilitates the lathe body to respectively machine and turn two ends of the workpiece; the chips are collected and processed in a centralized manner, so that the chips are not easy to splash, and the lathe body is well protected; the double-inverted main shaft realizes continuous processing of workpieces and improves the processing efficiency of parts.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an assembled schematic view of the moving rail assembly of the present invention;

FIG. 3 is a schematic view of the construction of the cutting spindle of the present invention;

FIG. 4 is a structural schematic view of another perspective of the cutting spindle of the present invention;

FIG. 5 is a structural schematic view of another perspective of the cutting spindle of the present invention;

FIG. 6 is a structural cross-sectional view of the cutting spindle of the present invention;

FIG. 7 is a schematic view of the assembly of the servo tool post of the present invention;

FIG. 8 is a schematic diagram of the construction of the servo tool post of the present invention;

FIG. 9 is a schematic structural view of another perspective of the servo tool post of the present invention;

FIG. 10 is an assembled schematic view of the bar stock reversing mechanism of the present invention;

FIG. 11 is an enlarged schematic view of the bar stock reversing mechanism of the present invention;

FIG. 12 is a schematic structural view of a bar stock reversing mechanism of the present invention;

fig. 13 is an assembly schematic of the chip removal device of the present invention;

fig. 14 is a schematic view of the chip removal device of the present invention;

fig. 15 is a structural sectional view of the chip removal device of the present invention;

fig. 16 is a partial schematic view of the chip removal device of the present invention;

in the figure, a lathe body 1, a loading frame 2, a moving guide rail assembly 3, a slide base body 32, a transverse moving mechanism 33, a transverse sliding rail 331, a transverse sliding block 332, a transverse limiting groove 333, a transverse limiting protrusion 334, a backing plate 335, a transverse driving mechanism 336, a vertical moving mechanism 34, a vertical sliding rail 341, a vertical sliding block 342, a vertical limiting groove 343, a vertical limiting protrusion 344, a sliding rail pressing block 345, a flange bracket 346, a sliding table body 35, a side cover plate 351, a positive baffle 352, an upper baffle 353, a chip blocking cover 354, a top cover plate 355, an oil pipe bracket 356, a guide hole 357, a grease distributor 358, an electric spindle assembly 369, a spindle box 361, an electric spindle body 362, a cooling jacket 363, a cooling groove 364, a spindle cover 365, a clamping ring 366, an adjusting bolt 367, a sealing groove 368, a sealing ring 371, a rotary hydraulic cylinder 37, a pull rod, a pull hole 372, a sealing cylinder 373, a packing ring 374, a hydraulic chuck 38, a main body 381, a transverse sliding blocks 331, a transverse sliding blocks 332, a transverse limiting groove 351, a side cover, a side, The hydraulic driving device comprises a clamping jaw block 382, a clamping jaw foot 383, a fixing groove 384, a fixing strip 385, a vertical driving mechanism 39, a servo motor 391, a coupling 392, a driving screw 393, a screw rod seat 394, a screw rod nut 395, a cutting spindle 4, a servo tool post 5, a tool post column 511, a chip removal port 512, a rotary tool tower 52, a tool post motor 521, a rear tool tower 522, a tool post seat 523, a clamping tool station 524, a locking mechanism 53, a triple fluted disc 531, a fixing mechanism 54, a fixing strip 541, a fixing notch 542, a first hydraulic clamping mechanism 55, a first clamping groove 551, a first clamping block 552, a second hydraulic clamping mechanism 56, a hydraulic seat 561, a second clamping groove 562, a second clamping block 563, a third hydraulic clamping mechanism 57, a hydraulic table 571, a clamping hole 572, a clamping bolt 573, a hydraulic driving module 58, a bar reversing mechanism 6, a mounting column 611, a rotary hole 612, a vertical spindle 613, a rotary arm assembly 62, a bar components 62, a driving mechanism 4, a servo tool post 5, a servo tool post column 5, a triple fluted disc 531, a clamp groove column 613, a driving mechanism, a servo motor, a driving screw bracket, a driving screw, a driving mechanism, a triple fluted disc holder bracket, a clamp mechanism, a, Rotating shaft 621, rotating motor 622, rotating plate 623, chuck assembly 63, chuck base 631, jaws 632, telescoping mechanism 64, telescoping cylinder 641, telescoping rod 642, telescoping table 643, telescoping limit mechanism 65, limit column 651, limit protrusion 652, limit hole 653, chip removal device 7, lower housing 72, chip collection cavity 721, chip inlet 722, chip guide 723, support bar 724, support base 725, support foot 726, universal wheel 727, inclined housing 73, chip removal channel 731, upper housing 74, chip removal cavity 741, chip removal port 742, adjusting hole 743, adjusting housing 744, adjusting bar 745, adjusting base 746, adjusting groove 747, pulley mounting hole, adjusting bolt 749, driving mechanism 75, mounting table 751, driving motor 752, sprocket transmission mechanism 753, sprocket cover 754, conveyor belt assembly 76, conveyor belt pulley 762, negative pressure cavity 77, negative pressure port jack 771,

centrifugal pump

78, 79, centrifugal pump 79, conveyor belt 748, negative pressure chamber 748, and vacuum pump, Filtering baffle 791, belt conveyor 8.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 16, the double-spindle inverted numerically controlled lathe comprises a lathe body 1, wherein a feeding frame 2 is arranged on one side of the lathe body 1, a belt conveyor 8 is arranged on the other side of the lathe body, two inverted cutting spindles 4 are mounted above the lathe body 1 through a movable guide rail assembly 3, servo tool rests 5 opposite to the cutting spindles 4 are respectively arranged below the cutting spindles 4, and a bar stock reversing mechanism 6 for transferring processed bar stocks is arranged between the cutting spindles 4. The bar stock blank is transferred to one side of lathe main part 1 one by last work or material rest 2, and one of them cutting main shaft 4 moves to the blank directly over under the effect of moving guide rail subassembly 3, and the centre gripping blank is transferred to servo knife rest 5 department and is rotated the turning simultaneously, and after one end was accomplished the processing, bar stock reversing mechanism 6 was fixed by another cutting main shaft 4 centre gripping after changing the bar stock, and after the turning was accomplished to the bar stock other end, will process the finished product and transfer to band conveyer 8 on to realize the continuous two-way processing in batches of bar stock.

Specifically, the bar stock reversing mechanism 6 comprises two symmetrically arranged rotating arm assemblies 62, each rotating arm assembly 62 is provided with a rotating shaft 621 which is arranged above the lathe body 1 and extends along the longitudinal direction of the lathe body 1, the rotating shafts 621 are parallel to each other and are rotatably connected with the lathe body 1, a vertically arranged mounting upright 611 is arranged above the lathe body 1, a rotating hole 612 for the rotating shaft 621 to pass through is formed in the mounting upright 611, the end of the rotating shaft 621 is connected with the output end of a rotating motor 622 arranged at the back of the lathe body 1, a rotating plate 623 vertical to the rotating shaft 621 is fixed at the other end of the rotating shaft 621, a chuck assembly 63 is arranged on one side opposite to the rotating plate 623, and a telescopic mechanism 64 is arranged between the chuck assembly 63 and the rotating plate 623. The symmetrically arranged rotating arm assemblies 62 rotate relatively, the chuck assembly 63 and the telescopic mechanism 64 mounted on the rotating plate 623 rotate along with the rotating arm assemblies, and the vertically arranged bar stock is horizontally transferred, turned upside down and vertically arranged again.

Deeply, a vertically arranged mounting upright 611 is mounted above the lathe body 1, a rotary hole 612 for the rotary shaft 621 to pass through is formed in the mounting upright 611, the chuck assembly 63 includes a cylindrical chuck base 631, a plurality of jaws 632 which are symmetrical with respect to the center and are driven by hydraulic pressure are disposed at the end of the chuck base 631, the telescopic mechanism 64 includes a telescopic cylinder 641 fixed at one side of the rotary plate 623, a telescopic table 643 connected with the chuck assembly 63 is fixed at the end of a telescopic rod 642 of the telescopic cylinder 641, a telescopic limit mechanism 65 is disposed between the telescopic table 643 and the telescopic cylinder 641, the telescopic limit mechanism 65 includes a limit post 651 parallel to the telescopic rod 642, a limit protrusion 652 symmetrical with respect to the center is disposed at the side of the telescopic table 643, the limit post 651 is fixedly connected with the limit protrusion 652, a limit hole 653 for inserting the limit post 651 is formed at one end of the telescopic cylinder 641 opposite to the telescopic table 643, the limiting column 651 axially extends and retracts relative to the limiting hole 653, the chuck assemblies 63 between the rotary arm assemblies 62 are oppositely arranged, the central axes of the chuck assemblies 63 are matched, two vertical spindles 613 are installed above the lathe body 1, the rotary arm assemblies 62 are arranged between the vertical spindles 613, through holes for installing the telescopic mechanisms 64 and the chuck assemblies 63 are formed in the rotary plates 623, the central axes of the through holes in the rotary plates 623 which are vertically and symmetrically arranged are matched, the chuck assemblies 63 between the rotary arm assemblies 62 are oppositely arranged, the central axes of the chuck assemblies 63 are matched, a distance for clamping bars is reserved between the chuck assemblies 63 of the rotary arm assemblies 62 when the chuck assemblies 63 are opposite, and the rotary motor 622, the chuck assemblies 63 and the telescopic mechanisms 64 are connected with a numerical control module. Chuck pedestal 631 sets up relatively, leaves the space between and is used for the centre gripping bar and supplies telescopic machanism 64 to stretch out and draw back and realize the bar and transfer, and telescopic machanism 64 is equipped with spacing post 651 and supplies the gliding spacing hole 653 of spacing post 651, and the flexible orbit of restriction chuck pedestal 631 avoids it to take place the dislocation.

Further, the movable guide rail assembly 3 includes a slide base 32 mounted on the lathe body 1, a transverse moving mechanism 33 for driving the slide base 32 to move transversely relative to the lathe body 1 is disposed between the slide base 32 and the lathe body 1, and a slide base 35 capable of moving up and down relative to the slide base 32 is mounted on the slide base 32 through a vertical moving mechanism 34. The transverse moving mechanism 33 and the vertical moving mechanism 34 in the moving guide rail assembly 3 realize the transverse and vertical movement of the cutting spindle 4, so that the cutting spindle 4 is combined with a mechanical claw, and the automatic clamping and turning of the bar stock are realized.

Furthermore, the transverse moving mechanism 33 includes two parallel transverse sliding rails 331 extending along the transverse direction of the lathe body 1, one side of the sliding base 32 opposite to the transverse sliding rails 331 is fixed with a plurality of transverse sliding blocks 332 engaged with the transverse sliding rails 331, the upper and lower sides of the transverse sliding rails 331 are respectively provided with a transverse limiting groove 333, the transverse sliding blocks 332 are provided with a transverse limiting protrusion 334 engaged with the transverse limiting groove 333, a backing plate 335 is arranged between the transverse sliding blocks 332 and the sliding base 32, one end of the lathe body 1 is provided with a transverse driving mechanism 336, the transverse driving mechanism 336 adopts gear and rack transmission, lead screw transmission or hydraulic/pneumatic transmission, the vertical moving mechanism 34 includes two parallel vertical sliding rails 341 extending along the vertical direction of the sliding base 35, one side of the sliding base 32 opposite to the vertical sliding rails 341 is fixed with a plurality of vertical sliding blocks 342 engaged with the vertical sliding rails 341, vertical limiting grooves 343 are respectively formed in two sides of each vertical sliding rail 341, vertical limiting protrusions 344 clamped with the vertical limiting grooves 343 are formed in each vertical sliding block 342, a plurality of sliding rail pressing blocks 345 are arranged between the vertical sliding rails 341 and the sliding table body 35, a flange support 346 is installed above the sliding table body 32, a vertical driving mechanism 39 is installed between the flange support 346 and the sliding table body 35, the vertical driving mechanism 39 comprises a servo motor 391 installed above the flange support 346, the output end of the servo motor 391 faces downwards and is connected with a driving lead screw 393 through a coupler 392, a lead screw seat body 394 is installed on the sliding table body 35, a lead screw nut 395 is installed at the center of the lead screw seat body, and the lead screw nut 395 is connected with the driving lead screw 393. The transverse moving mechanism 33 selects a proper transverse driving mechanism 336 according to actual needs, and is matched with the vertical driving mechanism 39 to realize the stepless feeding of the cutting spindle 4, so that the synchronous operation can be realized, and the processing requirement of complex curved surfaces can be realized.

In addition, a side cover plate 351 is installed at the lower end of the sliding table body 35, the side cover plate 351 is arranged between the electric spindle assembly and the hydraulic chuck 38, a positive baffle 352 is fixed at one side of the lower part of the side cover plate 351 opposite to the sliding table body 35, an upper baffle 353 is fixed at the other side of the lower part of the side cover plate 351, a scrap blocking cover 354 opposite to the side surface of the hydraulic chuck 38 is fixed at the lower part of the side cover plate 351, a top cover plate 355 which encloses the side surface of the cutting spindle 4 is fixed at the upper part of the side cover plate 351, an oil pipe support 356 is fixed on the sliding table body 35, a plurality of guide holes through which oil supply pipes pass are opened on the oil pipe support 356, grease distributors 358 are respectively installed at the two sides of the sliding seat body 32, the cutting spindle 4 comprises a spindle box 371 installed on the sliding table body 35, an electric spindle body 362 is installed at the center of the spindle box 361 along the vertical direction, a rotary hydraulic cylinder 37 is fixed above the electric spindle body 362, the rotary hydraulic cylinder 37 is connected with the hydraulic chuck 38 installed at the lower end of the electric spindle body 362 through a pull rod, a cooling jacket 363 is sleeved outside the electric spindle body 362, a cooling groove 364 which is arranged in an annular winding manner is arranged outside the cooling jacket 363, a clamping ring 366 is sleeved between the outer side of the upper part of the cooling jacket 363 and the outer side of a spindle cover 365 arranged above a spindle box 361, a gap is arranged on the clamping ring 366, an adjusting bolt 367 for adjusting the looseness of the clamping ring 366 is arranged between the gap and the adjusting bolt, a sealing groove 368 which is opposite to the inner side of the spindle box 361 is arranged outside the cooling jacket 363, a sealing ring 369 which is attached to and pressed against the spindle box 361 is sleeved in the sealing groove 368, a pull hole 372 for a pull rod 371 to pass through is arranged in the center of the electric spindle body 362, a sealing cylinder 373 which is fixedly pressed against the lower end of the cooling jacket 363 and a separation ring which is sleeved outside the sealing cylinder 373 are arranged outside the hydraulic chuck 374, the hydraulic chuck 38 comprises a chuck body 381 and clamping jaw blocks 382 which are symmetrically arranged relative to the center of the chuck body 381 through clamping jaw feet 383, and a gap is reserved between the chuck body 381 and the clamping jaw blocks 382, the opposite side of the clamping jaw foot 383 and the clamping jaw block 382 is provided with a fixing groove 384 and a fixing strip 385 which are mutually inserted and arranged in a cross way. The lower part of the sliding table body 35 is isolated by a cover plate, so that chips are prevented from sliding into the rotary connection part of the sliding table body. The electric spindle body 362 is electrically driven to rotate, the upper rotary hydraulic cylinder 37 drives the hydraulic chuck 38 to be clamped through the pull rod 371, the response speed is high, the distance between the clamping jaw block 382 and the chuck body 381 is kept, a clamping part with sufficient length is reserved for processing a bar stock, the cooling groove 364 on the outer side of the cooling sleeve 363 is opposite to the inner side of the spindle box 361, cooling fluid flows between the cooling groove 364 and the spindle box to bring heat generated when the electric spindle assembly 36 runs, the clamping ring 366 on the upper side of the cooling sleeve 363 is clamped at the joint of the cooling groove 366 and the spindle cover 365, and the sealing ring 369 is arranged on the inner side of the spindle box 361 to achieve a good sealing effect on the upper side and the lower side of the cooling groove 364.

Meanwhile, a chip removal device 7 is arranged below the lathe body, the chip removal device 7 comprises a lower shell 72 arranged below the lathe body 1, the lower shell 72 is long-strip-shaped, a chip collection cavity 721 is formed inside the lower shell 72, a chip inlet 722 is formed above the lower shell 72, one end of the lower shell 72 is connected with an inclined shell 73 which is obliquely arranged, an upper shell 74 is connected above the inclined shell 73, a chip removal cavity 741 is formed inside the upper shell 74, a chip removal port 742 communicated with the chip removal cavity 741 is formed below the upper shell 74, a chip removal channel 731 communicated with the chip removal cavity 721 is formed inside the inclined shell 73, a driving mechanism 75 is arranged above the upper shell 74, the driving mechanism 75 is connected with a conveyor belt assembly 76, the conveyor belt assembly 76 is arranged between the chip removal cavity 741, the chip removal channel 731 and the chip collection cavity 721, the chip inlet 722 of the lower shell 72 is opposite to the chip collection port below the front part of the lathe body 1, the lower shell 72 extends to the rear part of the lathe body 1 from the front part of the lathe body 1, and the shell 73 and the upper shell 74 are provided with the chip collection cavity 74 The lathe is arranged at the back of a lathe body 1, a negative pressure cavity 77 is arranged in a lower shell 72, negative pressure ports 771 communicated with the negative pressure cavity 77 are formed in two sides of a chip collecting cavity 721, a centrifugal pump 78 is installed above one end, opposite to an inclined shell 73, of the lower shell 72, the centrifugal pump 78 is connected into the negative pressure cavity 77, a socket 79 opposite to the negative pressure cavity 77 is arranged above the joint of the lower shell 72 and the inclined shell 73, a filtering baffle 791 is inserted into the socket 79, a chip guide plate 723 which is obliquely arranged is arranged at a chip inlet 722 above the chip collecting cavity 721, and the negative pressure ports 771 are arranged in a strip shape below the chip guide plate 723. The chip removal device 7 is integrally arranged at the lower part and the back part of the lathe body 1, and does not influence the front feed processing of the lathe body 1. When the lathe body 1 is used for machining and turning, chips fall into a chip collecting cavity 721 in a lower shell 72 below the lathe body, chips with smaller mass are sucked into the chip collecting cavity 721 due to negative pressure suction generated by a centrifugal pump 78 of a negative pressure cavity 77 in the splashing process, the chips are upwards lifted to a chip discharging cavity 741 along a chip discharging channel by a conveyor belt assembly 76 under the driving of a driving mechanism 75 and then are discharged, collected and processed in a centralized manner, a filter screen is arranged at a negative pressure port 771 to filter the chips sucked into the chip collecting cavity 721, a filter baffle 791 is arranged in the negative pressure cavity 77 and separates the centrifugal pump 78, a funnel-shaped blanking structure is formed by a chip guide plate 723 to play a role in guiding the chips, a support strip 724 longitudinally extends along the lower shell 72 and is arranged between the chip collecting cavity 721 and the negative pressure cavity 77, the structural strength of the inner wall of the negative pressure cavity 77 is improved, and deformation is avoided.

Visibly, a plurality of supporting bars 724 are arranged below the chip collecting cavity 721, the supporting bars 724 are C-shaped, two ends of the supporting bars 724 are respectively fixed with the side surface of the lower shell 72, two sides of the upper shell 74 are respectively provided with an adjusting hole 743 extending along the transverse direction, an adjusting shell 744 is covered outside the adjusting hole 743, an adjusting strip 745 extending along the transverse direction and respectively arranged above and below the adjusting hole 743 is arranged in the adjusting shell 744, an adjusting seat 746 capable of sliding relative to the adjusting strip 745 is clamped between the adjusting strips 745, adjusting grooves 747 matched with the adjusting strip 745 are arranged above and below the adjusting seat 746, a belt wheel mounting hole 748 opposite to the adjusting hole 743 and opposite to the conveying belt assembly 76 is arranged on the adjusting seat 746, an adjusting bolt 749 in threaded connection with the adjusting shell 744 is arranged at one side of the adjusting seat 746, the driving mechanism 75 comprises a mounting platform 751 fixed above the upper shell 74, a plurality of studs for adjusting the relative height of the mounting platform 751 and the upper shell 74 are arranged between the mounting platform 751 and the upper shell 74, a driving motor 752 is fixed above the mounting platform 751, the output end of the driving motor 752 drives the conveyor belt assembly 76 to move through a chain wheel transmission mechanism 753, a chain wheel cover plate 754 is arranged outside the chain wheel transmission mechanism 753, a plurality of supporting seats 725 are arranged below the outside of the lower shell 72, supporting feet 726 and/or universal wheels 727 are arranged below the supporting seats 725, the conveyor belt assembly 76 comprises conveying belt wheels 761 rotatably arranged in the chip removal cavity 741 and the chip collection cavity 721, a conveyor belt 762 is arranged between the conveying belt wheels 761, and the conveyor belt 762 is attached to the bottoms of the chip collection cavity 721 and the chip removal channel 731. The adjustment seat 746 is laterally movable along the upper housing 74 with the pulley mounting holes 748 therebetween for securing the conveyor pulleys 761 of the conveyor belt assembly 76 and the mounting table 751 above the drive mechanism 75 is vertically liftable and lowerable to tighten the drive chain in the sprocket drive 753 to maintain a smooth power output into the conveyor belt assembly 76.

Obviously, the servo tool post 5 comprises a tool post column 511 arranged on the lathe body 1, a rotary tool turret 52 is fixed on one side of the tool post column 511 opposite to the main shaft, a tool post motor 521 of the rotary tool turret 52 is inserted and fixed in the tool post column 511, the rotary tool turret 52 adopts a rear tool post 522, a tool post base 523 is arranged between the rear tool post 522 and the tool post motor 521, a locking mechanism 53 is arranged between the tool post base 523 and the rear tool post 522, the central plane of the rear tool post 522 is vertical to the horizontal plane, a fixing mechanism 54 is arranged between the tool post base 523 and the upper part of the lathe body 1, a numerical control module connected with the tool post motor 521 and the locking mechanism 53 is arranged in the rotary tool post 52, the rear tool post 522 has a plurality of tool clamping stations 524 symmetrical to the center thereof, a first hydraulic clamping mechanism 55, a second hydraulic clamping mechanism 56 or a third hydraulic clamping mechanism 57 is fixed on the tool clamping stations 524, and a hydraulic driving module 58 connected with the numerical control module is arranged in the rotary cutter tower 52. The rear tool turret 522 in the servo tool rest 5 is vertically arranged and is opposite to the lower end of the cutting spindle 4, the tool clamped by the tool clamping station 524 is switched along with the rotation of the rear tool turret 522 driven by the tool rest motor 521, and the locking mechanism 53 realizes the locking and fixing of the position of the tool, so that the looseness during turning is avoided.

Preferably, the first hydraulic clamping mechanism 55 includes a first clamping groove 551 disposed on an end surface of the rear turret 522 and extending in a radial direction, a first clamping block 552 connected to the hydraulic drive module 58 is disposed inside the first clamping groove 551, the second hydraulic clamping mechanism 56 includes a hydraulic seat 561 fixed on a side surface of the rear turret 522, a second clamping groove 562 extending in an axial direction of the rear turret 522 is opened outside the hydraulic seat 561, a second clamping block 563 connected to the hydraulic drive module 58 is disposed inside the second clamping groove 562, the third hydraulic clamping mechanism 57 includes a hydraulic table 571 fixed on a side surface of the rear turret 522, a clamping hole 572 extending in an axial direction of the rear turret 522 is opened in a center of the hydraulic table 571, a clamping bolt 573 having an end opposite to an inner side of the clamping hole 572 is threadedly connected to one side of the hydraulic table, the locking mechanism 53 is a triple toothed disc 531 disposed between the holder 523 and the rear turret body 522, the triple gear disc 531 is connected with the hydraulic drive module 58, the hydraulic drive module 58 is a hydraulic drive cylinder and a hydraulic distribution oil circuit connected with the hydraulic drive cylinder, the fixing mechanism 54 includes fixing bars 541 arranged on two sides below the tool rest base 523, a plurality of fixing notches 542 are formed on the fixing bars 541, and the rear tool tower 522 is opposite to the chip removal port 512 below the lathe body 1. When a tool is clamped in the first hydraulic clamping mechanism 55, the tool bit extends along the radial direction of the rear turret 522, when the tool bit is vertically upwards, the tool bit and the main shaft are opposite to start workpiece machining, the tool clamped by the second hydraulic clamping mechanism 56 extends along the axial direction of the rear turret 522 and is horizontally arranged, the tool bit rotates to the top of the rear turret 522 to mill a workpiece, the tool bit is inserted into the clamping hole 572, the tool bit and the hydraulic table 571 are kept fixed relatively under the clamping force of the clamping bolt 573, meanwhile, the tool bit extends along the axial direction of the rear turret 522, and the triple-toothed disc 531 is loosened or locked under the hydraulic pressure.

In summary, the principle of the present embodiment is: the cutting main shaft 4 is arranged in an inverted mode and slides relative to the lathe main body 1 through the movable guide rail assembly 3, a bar conveyed from the feeding frame 2 is clamped and then transferred to the position above the servo tool rest 5 for turning, the bar is transferred and reversed through the bar reversing mechanism 6 after one end of a workpiece is machined, the other end of the bar is clamped and fixed by the other cutting main shaft 4 and turned, a finished product is transferred to the belt conveyor 8 for output after machining is finished, and bidirectional continuous machining and turning of the workpiece are achieved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the lathe body 1, the loading frame 2, the moving rail assembly 3, the slide holder body 32, the lateral moving mechanism 33, the lateral slide rail 331, the lateral slide block 332, the lateral limit groove 333, the lateral limit protrusion 334, the backing plate 335, the lateral driving mechanism 336, the vertical moving mechanism 34, the vertical slide rail 341, the vertical slide block 342, the vertical limit groove 343, the vertical limit protrusion 344, the slide rail pressing block 345, the flange bracket 346, the slide table body 35, the side cover plate 351, the positive baffle 352, the upper baffle 353, the chip cover 354, the top cover plate 355, the oil pipe bracket 356, the guide hole 357, the grease distributor 358, the electric spindle assembly 36, the spindle box 361, the electric spindle body 362, the cooling jacket 363, the cooling groove 364, the spindle cover 365, the clamping ring 366, the adjusting bolt 373, the sealing groove 368, the sealing ring 371, the rotary hydraulic cylinder 37, the draw rod 371, the draw hole 372, the sealing cylinder 371, the packing ring 374, the packing ring, The hydraulic chuck 38, the chuck main body 381, the clamping jaw blocks 382, the clamping jaw feet 383, the fixing grooves 384, the fixing strips 385, the vertical driving mechanism 39, the servo motor 391, the coupler 392, the driving screw 393, the screw rod seat 394, the screw rod nut 395, the cutting spindle 4, the servo tool post 5, the tool post column 511, the chip removal port 512, the rotary tool tower 52, the tool post motor 521, the rear tool tower 522, the tool post seat 523, the clamping tool station 524, the locking mechanism 53, the triple toothed disc 531, the fixing mechanism 54, the fixing strips 541, the fixing notches 542, the first hydraulic clamping mechanism 55, the first clamping groove 551, the first clamping block 552, the second hydraulic clamping mechanism 56, the hydraulic seat 561, the second clamping groove 562, the second clamping block 563, the third hydraulic clamping mechanism 57, the hydraulic table 571, the clamping holes 572, the clamping bolts 573, the hydraulic driving module 58, the bar reversing mechanism 6, the mounting columns 611, the rotary holes 612, the vertical driving mechanism 383, the servo motor 391, the rear tool post 522, the tool post seat 523, the clamping mechanism 523, the third clamping mechanism 53, the third clamping mechanism 395, the third clamping mechanism 5630, the hydraulic clamping mechanism, the third clamping mechanism, the clamping mechanism, and the clamping mechanism, and the clamping mechanism, vertical main shaft 613, rotary arm assembly 62, rotary shaft 621, rotary motor 622, rotating plate 623, chuck assembly 63, chuck base 631, clamping jaws 632, telescopic mechanism 64, telescopic cylinder 641, telescopic rod 642, telescopic table 643, telescopic limit mechanism 65, limit column 651, limit protrusion 652, limit hole 653, chip removal device 7, lower housing 72, chip collection cavity 721, chip inlet 722, chip guide plate 723, support bar 724, support seat 725, support foot 726, universal wheel 727, inclined housing 73, chip removal channel, upper housing 74, chip removal cavity 741, chip removal port 742, adjustment hole 743, adjustment housing 744, adjustment bar 745, adjustment seat 746, adjustment groove 747, pulley mounting hole 749, adjustment bolt 749, driving mechanism 75, mounting table 751, driving motor 752, sprocket drive mechanism 753, sprocket cover plate 754, conveyor belt assembly 76, conveyor belt pulley 761, conveyor belt 762, negative pressure cavity 77, negative pressure cavity 748, conveyor belt assembly 76, conveyor belt 748, and conveyor belt, Negative pressure port 771, centrifugal pump 78, spigot 79, filter baffle 791, belt conveyor 8, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a two main shaft handstand formula numerical control lathe, includes lathe main body (1), lathe main body (1) one side be provided with material loading frame (2) and the opposite side is provided with band conveyer (8), its characterized in that, lathe main body (1) top install two cutting main shaft (4) that handstand set up through removing guide rail subassembly (3), cutting main shaft (4) below be provided with rather than relative servo knife rest (5) respectively, cutting main shaft (4) between be provided with bar reversing mechanism (6) of transferring processing bar.

2. The double-spindle inverted numerically controlled lathe according to claim 1, wherein the bar stock reversing mechanism (6) comprises two symmetrically arranged rotating arm assemblies (62), each rotating arm assembly (62) is provided with a rotating shaft (621) which is arranged above the lathe body (1) and extends along the longitudinal direction of the lathe body (1), the rotating shafts (621) are parallel to each other and are rotatably connected with the lathe body (1), a vertically arranged mounting upright post (611) is mounted above the lathe body (1), a rotating hole (612) for the rotating shaft (621) to pass through is formed in the mounting upright post (611), the end of the rotating shaft (621) is connected with the output end of a rotating motor (622) mounted on the back of the lathe body (1), and a rotating plate (623) which is vertical to the rotating shaft (621) is fixed at the other end of the rotating shaft (621), the relative one side of rotating plate (623) install chuck subassembly (63), chuck subassembly (63) and rotating plate (623) between be provided with telescopic machanism (64).

3. The double-spindle inverted numerically controlled lathe according to claim 2, wherein a vertically arranged mounting column (611) is mounted above the lathe body (1), a rotary hole (612) for a rotary shaft (621) to pass through is formed in the mounting column (611), the chuck assembly (63) comprises a cylindrical chuck base body (631), a plurality of jaws (632) which are symmetrical relative to the center of the chuck base body (631) and are driven by hydraulic pressure are arranged at the end of the chuck base body, the telescopic mechanism (64) comprises a telescopic cylinder (641) fixed on one side of the rotary plate (623), a telescopic table (643) connected with the chuck assembly (63) is fixed at the end of a telescopic rod (642) of the telescopic cylinder (641), a telescopic limit mechanism (65) is arranged between the telescopic table (643) and the telescopic cylinder (641), and the telescopic limit mechanism (65) comprises a limit column (651) parallel to the telescopic rod (642), the side surface of the telescopic table (643) is provided with a limiting bulge (652) which is symmetrical relative to the center of the telescopic table, the limiting column (651) is fixedly connected with the limiting bulge (652), one end of the telescopic cylinder (641) opposite to the telescopic table (643) is provided with a limiting hole (653) for inserting the limiting column (651), the limiting column (651) axially extends and retracts relative to the limiting hole (653), chuck assemblies (63) between the rotary arm assemblies (62) are oppositely arranged and the central axes are matched, two vertical spindles (613) are arranged above the lathe body (1), the rotary arm assemblies (62) are arranged between the vertical spindles (613), through holes for installing a telescopic mechanism (64) and the chuck assemblies (63) are arranged on the rotary plate (623), the central axes on the vertically symmetrical rotary plate (623) are matched, the chuck assemblies (63) between the rotary arm assemblies (62) are oppositely arranged and the central axes are matched, the distance for clamping the bar stock is reserved between the chuck assemblies (63) of the rotary arm assemblies (62) when the chuck assemblies are opposite, and the rotary motor (622), the chuck assemblies (63) and the telescopic mechanism (64) are connected with the numerical control module.

4. The double-spindle inverted numerically controlled lathe according to claim 1, wherein the movable guide rail assembly (3) comprises a slide base (32) mounted on the lathe body (1), a transverse moving mechanism (33) for driving the slide base (32) to move transversely relative to the lathe body (1) is arranged between the slide base (32) and the lathe body (1), and a slide table body (35) capable of moving up and down relative to the slide base (32) is mounted on the slide base (32) through a vertical moving mechanism (34).

5. The double-spindle inverted numerically controlled lathe according to claim 4, wherein the transverse moving mechanism (33) includes two parallel transverse slide rails (331) extending in the transverse direction of the lathe body (1), a plurality of transverse slide blocks (332) engaged with the transverse slide rails (331) are fixed to one side of the slide base (32) opposite to the transverse slide rails (331), transverse limit grooves (333) are respectively formed in the upper and lower sides of the transverse slide rails (331), transverse limit protrusions (334) engaged with the transverse limit grooves (333) are formed on the transverse slide blocks (332), a backing plate (335) is disposed between the transverse slide blocks (332) and the slide base (32), a transverse driving mechanism (336) is mounted at one end of the lathe body (1), and the transverse driving mechanism (336) is driven by a gear rack, a lead screw or hydraulic/pneumatic transmission, the vertical moving mechanism (34) comprises two vertical sliding rails (341) which are parallel and extend along the vertical direction of the sliding table body (35), one side of the sliding table body (32) opposite to the vertical sliding rails (341) is fixed with a plurality of vertical sliding blocks (342) clamped with the vertical sliding rails (341), two sides of each vertical sliding rail (341) are respectively provided with a vertical limiting groove (343), each vertical sliding block (342) is provided with a vertical limiting bulge (344) clamped with the vertical limiting groove (343), a plurality of sliding rail pressing blocks (345) are arranged between each vertical sliding rail (341) and the sliding table body (35), a flange bracket (346) is arranged above the sliding table body (32), a vertical driving mechanism (39) is arranged between each flange bracket (346) and the sliding table body (35), each vertical driving mechanism (39) comprises a servo motor (391) arranged above each flange bracket (346), the output end of the servo motor (391) faces downwards and is connected with a driving screw (393) through a coupler (392), a screw seat body (394) is installed on the sliding table body (35), a screw nut (395) is installed in the center of the screw seat body (394), and the screw nut (395) is connected with the driving screw (393).

6. The double-spindle inverted numerically controlled lathe according to claim 5, wherein a side cover plate (351) is mounted at the lower end of the slide table body (35), the side cover plate (351) is arranged between the electric spindle assembly and the hydraulic chuck (38), a positive baffle plate (352) is fixed on one side of the lower portion of the side cover plate (351) opposite to the slide table body (35) while an upper baffle plate (353) is fixed on the other side of the lower portion of the side cover plate (351), a chip blocking cover (354) opposite to the side of the hydraulic chuck (38) is fixed on the lower portion of the side cover plate (351), a top cover plate (355) which surrounds the side of the cutting spindle (4) is fixed on the upper portion of the side cover plate (351), an oil pipe support (356) is fixed on the slide table body (35), a plurality of guide holes through which pipes pass are formed on the oil pipe support (356), and grease distributors (358) are mounted on two sides of the slide table body (32), the cutting spindle (4) comprises a spindle box (361) arranged on a sliding table body (35), an electric spindle body (362) is arranged in the center of the spindle box (361) along the vertical direction, a rotary hydraulic cylinder (37) is fixed above the electric spindle body (362), the rotary hydraulic cylinder (37) is connected with a hydraulic chuck (38) arranged at the lower end of the electric spindle body (362) through a pull rod (371), a cooling jacket (363) is sleeved outside the electric spindle body (362), a cooling groove (364) arranged in an annular winding mode is formed in the outer side of the cooling jacket (363), a clamping ring (366) is sleeved between the outer side above the cooling jacket (363) and the outer side of a spindle cover (365) above the spindle box (361), a gap is formed in the clamping ring (366), and an adjusting bolt (367) for adjusting the looseness of the clamping ring (366) is arranged between the clamping ring (366), the cooling jacket (363) outside open have with the inboard relative seal groove (368) of headstock (361), seal groove (368) endotheca have with headstock (361) laminating compress tightly seal ring (369), electric main shaft main part (362) center open have the draw hole (372) that supply pull rod (371) to pass, electric main shaft main part (362) lower extreme outside be provided with compress tightly fixed sealing barrel (373) and cover in the separate dress ring (374) of sealing barrel (373) with cooling jacket (363) lower extreme outside, hydraulic chuck (38) including chuck main part (381) and relative chuck main part (381) central symmetry set up clamp claw piece (382), chuck main part (381) be connected through clamp claw foot (383) and clamp claw piece (382) and chuck main part (381) and clamp claw piece (382) between leave the space, clamp claw foot (383) and clamp claw piece (382) relative one side be provided with fixed slot (384) and fixed strip (385) that the cross arrangement of pegging graft each other and be provided with fixed strip (385) .

7. The double-spindle inverted numerically controlled lathe according to claim 1, wherein a chip removal device (7) is disposed below the lathe body, the chip removal device (7) comprises a lower housing (72) disposed below the lathe body (1), the lower housing (72) is elongated and has a chip collection chamber (721) therein, a chip inlet (722) is formed above the lower housing (72), one end of the lower housing (72) is connected with an inclined housing (73) which is obliquely disposed, an upper housing (74) is connected above the inclined housing (73), the upper housing (74) has a chip removal chamber (741) therein and a chip removal port (742) which is communicated with the chip removal chamber (741) is formed below the upper housing (74), the inclined housing (73) has a chip removal channel (731) which communicates the chip collection chamber (721) with the chip removal chamber (741) therein, the upper shell (74) is provided with a driving mechanism (75) above, the driving mechanism (75) is connected with a conveyor belt component (76), the conveyor belt component (76) is arranged among a chip discharge cavity (741), a chip discharge channel (731) and a chip collection cavity (721), a chip inlet (722) of the lower shell (72) is opposite to a chip collection port below the front part of the lathe body (1), the lower shell (72) extends to the rear part of the lathe body (1) from the lower part of the front part of the lathe body (1), the inclined shell (73) and the upper shell (74) are arranged at the back part of the lathe body (1), a negative pressure cavity (77) is arranged in the lower shell (72), negative pressure ports (771) communicated with the negative pressure cavity (77) are formed in two sides of the chip collection cavity (721), a centrifugal pump (78) is arranged above one end, opposite to the inclined shell (73), of the lower shell (72), and the centrifugal pump (78) is connected into the negative pressure cavity (77), an inserting opening (79) opposite to the negative pressure cavity (77) is formed in the upper portion of the joint of the lower shell (72) and the inclined shell (73), a filtering baffle (791) is inserted into the inserting opening (79), a chip guide plate (723) is obliquely arranged at a chip inlet (722) in the upper portion of the chip collecting cavity (721), and the negative pressure opening (771) is arranged in a strip shape below the chip guide plate (723).

8. The double-spindle inverted numerically controlled lathe according to claim 7, wherein a plurality of support bars (724) are disposed below the chip collecting cavity (721), the support bars (724) are C-shaped, two ends of each support bar (724) are respectively fixed to the side surfaces of the lower shell (72), adjusting holes (743) extending in the transverse direction are respectively formed in two sides of the upper shell (74), an adjusting shell (744) covers the outer sides of the adjusting holes (743), adjusting bars (745) extending in the transverse direction and respectively disposed above and below the adjusting holes (743) are disposed in the adjusting shell (744), adjusting seats (746) capable of sliding relative to the adjusting bars (745) are clamped between the adjusting bars (745), adjusting grooves (747) matched with the adjusting bars (745) are disposed above and below the adjusting seats (746), pulley mounting holes (748) opposite to the adjusting holes (743) and opposite to the conveyor belt assembly (76) are disposed on the adjusting seats (746), adjust seat (746) one side install with adjusting casing (744) threaded connection's adjusting bolt (749), actuating mechanism (75) including fixing mount table (751) above last casing (74), mount table (751) and last casing (74) between be provided with a plurality of regulation mount tables (751) and the relative high double-screw bolt of last casing (74), mount table (751) top be fixed with driving motor (752), driving motor (752) output pass through sprocket feed mechanism (753) drive conveyer belt subassembly (76) motion, the sprocket feed mechanism (753) outside be provided with sprocket cover plate (754), lower casing (72) outside below be provided with a plurality of supporting seats (725), supporting seat (725) under install support foot (726) and/or universal wheel (727), conveyer belt subassembly (76) including rotating the conveyer belt subassembly of installing in chip removal chamber (741) and chip collection chamber (721) The chip collecting device comprises belt wheels (761), a conveying belt (762) is arranged between the conveying belt wheels (761), and the conveying belt (762) is attached to the bottoms of a chip collecting cavity (721) and a chip discharging channel (731).

9. The double-spindle inverted numerically controlled lathe according to claim 1, wherein the servo tool post (5) comprises a tool post column (511) arranged on the lathe body (1), a rotary tool turret (52) is fixed on one side of the tool post column (511) opposite to the spindle, a tool post motor (521) of the rotary tool turret (52) is fixedly inserted into the tool post column (511), the rotary tool turret (52) adopts a rear tool post (522), a tool post base (523) is arranged between the rear tool post (522) and the tool post motor (521), a locking mechanism (53) is arranged between the tool post base (523) and the rear tool post (522), the central plane of the rear tool post (522) is vertical to the horizontal plane, and a fixing mechanism (54) is arranged between the tool post base (523) and the upper side of the lathe body (1), the rotary type tool turret (52) is internally provided with a numerical control module connected with a tool rest motor (521) and a locking mechanism (53), the rear tool turret (522) is provided with a plurality of tool clamping stations (524) which are symmetrical relative to the center of the rear tool turret, a first hydraulic clamping mechanism (55), a second hydraulic clamping mechanism (56) or a third hydraulic clamping mechanism (57) are fixed on the tool clamping stations (524), and a hydraulic driving module (58) connected with the numerical control module is arranged in the rotary type tool turret (52).

10. The double-spindle inverted numerically controlled lathe according to claim 9, wherein the first hydraulic clamping mechanism (55) comprises a first clamping groove (551) disposed on an end surface of the rear turret (522) and extending in a radial direction, a first clamping block (552) connected to the hydraulic driving module (58) is disposed inside the first clamping groove (551), the second hydraulic clamping mechanism (56) comprises a hydraulic seat (561) fixed on a side surface of the rear turret (522), a second clamping groove (562) extending in an axial direction of the rear turret (522) is disposed outside the hydraulic seat (561), a second clamping block (563) connected to the hydraulic driving module (58) is disposed inside the second clamping groove (562), and the third hydraulic clamping mechanism (57) comprises a hydraulic table (571) fixed on a side surface of the rear turret (522), the center of the hydraulic platform (571) is provided with a clamping hole (572) which extends along the axial direction of the rear cutter tower (522), one side of the hydraulic platform (571) is in threaded connection with a clamping bolt (573) the end of which is opposite to the inner side of the clamping hole (572), the locking mechanism (53) is a triple fluted disc (531) arranged between the tool rest base body (523) and the rear turret (522), the triple fluted disc (531) is connected with a hydraulic driving module (58), the hydraulic driving module (58) is a hydraulic driving cylinder and a hydraulic distribution oil way connected with the hydraulic driving cylinder, the fixing mechanism (54) comprises fixing strips (541) arranged at two sides below the tool rest base body (523), the fixed strip (541) is provided with a plurality of fixed notches (542), and the rear cutter tower (522) is opposite to a chip removal port (512) below the lathe body (1).