CN112122955B

CN112122955B - Machine tool

Info

Publication number: CN112122955B
Application number: CN202010978752.0A
Authority: CN
Inventors: 陈云法
Original assignee: Zhejiang Shuangzheng Technology Co ltd
Current assignee: Zhejiang Shuangzheng Technology Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-12-24
Anticipated expiration: 2040-09-17
Also published as: CN112122955A

Abstract

The invention provides a machine tool, and belongs to the technical field of mechanical equipment. The problem that the height of an existing machine tool is too large for improving machining efficiency is solved. The machine tool comprises a bed, an auxiliary disc and a plurality of clamps for clamping workpieces, wherein the auxiliary disc is in a straight cylinder shape and is vertically arranged, the lower end of the auxiliary disc is rotatably connected to the bed, the clamps are arranged on the side wall of the auxiliary disc in an upper layer and a lower layer, and a turnover mechanism capable of taking down and turning over the workpiece on one clamp in one layer and then repositioning the workpiece on the other clamp in the other layer is further arranged above the bed. The machine tool greatly reduces the height of the machine tool while ensuring the processing efficiency.

Description

Machine tool

Technical Field

The invention belongs to the technical field of mechanical equipment, and relates to a machine tool.

Background

The machine tool can clamp workpieces, then perform processing procedures such as tapping, reaming, grinding and the like, in order to integrate various functions and enable various procedures to be processed synchronously, the machine frame can clamp a plurality of workpieces for processing, for example, a disc type multi-station full-automatic tapping device disclosed by a patent document 201621444174.8 comprises a workbench, a rotary disc is arranged in the middle of the workbench, a feeding station, a supplied material detection station, a hole site correction station, a tapping station, a tooth extruding station, a chip removing station, a bristle punching station, a dust removing station and a blanking station are sequentially arranged on the workbench along the circumferential direction of the rotary disc, clamping mechanisms are arranged on the rotary disc corresponding to various stations, so that the various stations can process the workpieces clamped by respective opposite clamping frameworks, but the processing devices of the machine tool are arranged around the rotary disc, since it is difficult to attach a machining device to the inner position of the rotating disk, only the outer end of the workpiece can be machined, and when both ends of the workpiece need to be machined and the machining processes are different, the workpiece needs to be removed from the replacement equipment and machined.

Aiming at the defects that the inner side of a rotating disc is difficult to install a processing device, and the technical personnel in the field think that the rotating disc is vertically arranged, so the processing device can be installed on both sides of the rotating disc, for example, a waterwheel type pipe and bar forming device disclosed by a patent document (application number: 201420223873.4) is provided with an index plate, a plurality of clamping oil cylinders are arranged on the index plate, a plurality of forming devices are arranged on both sides of the index plate and are in one-to-one correspondence with the clamping oil cylinders on the index plate, so that both ends can be processed after a workpiece is clamped once, the structure can also be seen, and the clamping oil cylinders are arranged on the outer edge of the index plate, so that the delivery efficiency is improved for synchronously processing a plurality of workpieces, when more than four clamping oil cylinders are arranged and are circumferentially and uniformly distributed, when one clamping oil cylinder faces upwards, one oil cylinder faces downwards necessarily, and at least one oil cylinder is arranged in the middle part, that is, it is necessary to provide a space enough to install at least three clamping cylinders in the height direction, and accordingly, it is necessary to provide a space enough to install at least three molding devices in the height direction and to ensure that the at least three molding devices do not interfere with each other, which results in a large height of the entire apparatus and is not suitable for an environment with a small height space.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a machine tool which is used for solving the problem that the height of the machine tool is too large in order to improve the machining efficiency.

The purpose of the invention can be realized by the following technical scheme: the machine tool comprises a bed, an auxiliary disc and a plurality of clamps for clamping workpieces, and is characterized in that the auxiliary disc is in a straight cylinder shape and is vertically arranged, the lower end of the auxiliary disc is rotatably connected to the bed, the clamps are arranged on the side wall of the auxiliary disc in an upper layer and a lower layer, and a turnover mechanism capable of taking down and turning over the workpiece on one clamp in one layer and then repositioning the workpiece on the other clamp in the other layer is further arranged above the bed.

The machine tool aims at cylindrical or tubular workpieces, both ends of the workpieces need to be machined, the machine tool is different from the existing machine tool in that both ends can be machined or synchronously machined after the workpieces are clamped once, so that the whole auxiliary disc is in a flat disc shape and erected in a waterwheel shape, the disc surface of the auxiliary disc is in a vertical state, both sides of the auxiliary disc are provided with spaces for installing power heads, both ends of the workpieces are machined, and in order to synchronously machine a plurality of workpieces, a plurality of clamps are circumferentially arranged on the outer edge of the auxiliary disc, so that the auxiliary disc has a larger diameter, and the whole height of the machine tool is larger; the center line of the auxiliary disc is vertically arranged, the clamps are positioned on the side wall of the auxiliary disc, so that enough space is reserved on the peripheral side of the auxiliary disc for installing a plurality of power heads, the plurality of power heads are arranged around the auxiliary disc according to the circumferential arrangement quantity of the clamps on the auxiliary disc, the outer end of a workpiece is processed after the workpiece is clamped, and in view of the fact that the inner side space of the auxiliary disc is not enough for installing the power heads, the inner end of the workpiece is difficult to be directly processed, the auxiliary disc is designed into a straight cylinder shape and has a certain height so as to accommodate two layers of clamps which are distributed up and down, the clamps on each layer are distributed circumferentially, one layer is used for processing one end of the workpiece, the other layer is used for processing the other end of the workpiece, when the auxiliary disc rotates for a circle, the one end of the workpiece is taken down and overturned through the overturning mechanism, and is repositioned on the other layer of clamps after the workpiece is overturned, make the other end of work piece outwards and can be processed, and the unit head that is used for processing work piece one end when the equal centre gripping work piece of two-layer anchor clamps is in the processing state all is in operating condition with the unit head that is used for processing the other end, consequently still can guarantee higher machining efficiency, simultaneously in view of the height of auxiliary disc satisfy two anchor clamps highly in vertical ascending arranging can, consequently this structure is realizing the processing of work piece both ends, and when guaranteeing machining efficiency, greatly reduced the height of lathe, can be applicable to the less environment of high space.

In the machine tool, the two layers of the clamps are the same in number, and the two layers of the clamps are arranged in a one-to-one correspondence manner from top to bottom. The two layers of clamps with the same quantity can meet the one-to-one setting, so that the workpiece in one layer of clamp can be taken down and turned over by the turning mechanism and then inserted into the clamp on the other side layer, the structure is simplified, and the efficiency is high.

In the machine tool, the clamps extend out of the peripheral surface of the auxiliary disc, each clamp is provided with a clamping opening facing outwards along the radial direction of the auxiliary disc, and the turnover mechanism is positioned on the side part of the auxiliary disc. The clamping opening of the clamp faces outwards along the radial direction, so that the turnover mechanism can conveniently insert the workpiece, and the process is simplified.

In the machine tool, a feeding mechanism capable of positioning a workpiece on one layer of the clamps and a discharging mechanism capable of taking down the workpiece on the other layer of the clamps are respectively arranged above the bed, the feeding mechanism and the overturning mechanism can respectively face two clamps adjacent to each other in the circumferential direction of the auxiliary disc, and the discharging mechanism is positioned on the side part of the overturning mechanism. The feeding mechanism can insert a workpiece into one of the fixtures of the fixture layer, if the feeding mechanism inserts the workpiece into one fixture of the upper layer, the auxiliary plate rotates to enable one end of the workpiece to be processed by different power heads, when the workpiece is opposite to the turnover mechanism, the one end of the workpiece is processed, the turnover mechanism takes out the workpiece and turns over the workpiece to be inserted into the fixture adjacent to the lower layer, at the moment, the fixture with the workpiece taken out from the upper layer can be used for feeding relative to the feeding mechanism after the auxiliary plate rotates for one station, the other end of the workpiece positioned on the lower layer after turning over is processed by different power heads, when the workpiece is opposite to the turnover mechanism again, the other end of the workpiece is processed, the unloading mechanism positioned on the side portion of the turnover mechanism can take out the workpiece, and the turnover mechanism inserts the workpiece in the fixture on the upper layer into the fixture on the lower layer.

In the above machine tool, the turnover mechanism includes two gas claws capable of swinging in the same vertical plane, the two gas claws are located on the same side of the auxiliary disk and distributed up and down, when the two gas claws swing to the horizontal state, the two gas claws radially face the auxiliary disk along the auxiliary disk, the auxiliary disk can rotate to enable two vertically adjacent clamps in the two layers of clamps to be respectively opposite to the two gas claws, and when the two gas claws swing to the vertical state, the two gas claws can be oppositely arranged. When a workpiece in the upper-layer clamp finishes machining of one end and is opposite to the gas claw above the workpiece, the gas claw clamps the workpiece and swings downwards, so that the unmachined end of the workpiece is vertically downward, the gas claw below the gas claw vertically upward clamps the workpiece, then the gas claw below the gas claw swings to a horizontal state, the machined end of the workpiece is inserted into the clamping opening of the lower-layer clamp, and the unmachined end of the workpiece faces outward at the moment.

In the machine tool, a cylindrical machine body is fixed on the bed, the auxiliary disc is positioned in the machine body, a vertical plate is fixed on the machine body, two telescopic cylinders capable of swinging in the same vertical plane are arranged on the vertical plate and distributed up and down, and the two air claws are respectively fixed at the end parts of piston rods of the two telescopic cylinders. The telescopic cylinder realizes the displacement of the gas claw, namely the gas claw can take out the workpiece when clamping the workpiece in the upper-layer clamp, the gas claw below can ascend and clamp the taken-out workpiece, and the gas claw can displace and insert the workpiece into the lower-layer clamp when the workpiece is opposite to the lower-layer clamp.

In the machine tool, two rotary cylinders are fixed on one side of the vertical plate, the output ends of the two rotary cylinders penetrate through the vertical plate and are fixed with rotary tables, and the two telescopic cylinders are respectively fixed on the two rotary tables. Two revolving cylinder can drive two revolving stages and rotate, realizes the swing of gas claw, and then realizes the upset of work piece, and in actual design process, feed mechanism also can adopt following structure: including a telescopic cylinder who takes the gas claw, this gas claw is relative with the anchor clamps on upper strata, a telescopic cylinder who takes the ejector pin, this ejector pin is relative with the anchor clamps of lower floor, including a lift seat, the lift seat is through the drive of lift cylinder, the lift seat is connected with the roating seat through revolving cylinder, during operation lift seat rises and makes the roating seat be located between gas claw and the upper anchor clamps, the gas claw presss from both sides and gets back after getting the work piece and return, make the work piece be located the roating seat, then the roating seat is rotatory to make the work piece other end towards the auxiliary, the lift seat descends and makes the work piece relative with lower floor's anchor clamps, the ejector pin pushes up this work piece into in the anchor clamps of lower floor.

In the machine tool, the feeding mechanism comprises a support fixed on the machine tool body and a blanking pipeline positioned above the support, the port of the blanking pipeline faces downwards, a material groove seat is connected to the support in a sliding mode along the radial direction of the auxiliary plate, a material groove arranged along the radial direction of the auxiliary plate is arranged on the material groove seat, a material ejecting cylinder is further fixed on the material groove seat, a pushing column positioned in the material groove is fixed at the end portion of a piston rod of the material ejecting cylinder, a feeding cylinder connected with the material groove seat is fixed on the support, when the material groove seat is far away from the auxiliary plate to move, a notch of the material groove is opposite to the port of the blanking pipeline, when the material groove seat moves close to the auxiliary plate, one end of the material groove can be in butt joint with a clamping opening of the clamp, and the pushing column can push a workpiece in the material groove into the clamping opening of the clamp. The work piece enters into blanking pipeline through the vibration dish and falls into the silo in, the piston rod of feeding cylinder stretches out for the silo seat removes and is close to the auxiliary plate, makes the silo tip dock with the clamp mouth of anchor clamps, then the piston rod of liftout cylinder stretches out and pushes up the work piece in the silo into the clamp mouth of anchor clamps in, then feeding cylinder and liftout cylinder reset, simple structure, the material loading is stable. The feed mechanism also can adopt the telescopic cylinder who takes the gas claw, and this gas claw is relative with anchor clamps, and the one end of keeping away from the auxiliary plate when the work piece falls into the silo needs to stretch out the silo tip, and the gas claw can the centre gripping work piece this moment and insert it in anchor clamps.

In the above machine tool, the blanking mechanism comprises a blanking cylinder and a blanking guide plate, the blanking guide plate is fixed on the machine tool body, one end of the blanking guide plate is located on the side portion of the turnover mechanism, the other end of the blanking guide plate inclines downwards and extends out of the machine tool body, a connecting plate capable of moving along the radial direction of the auxiliary plate is arranged on the machine tool body, the blanking cylinder is fixedly connected onto the connecting plate, a gas claw is fixed at the end portion of a piston rod of the blanking cylinder, the center line of a clamp of which the gas claw faces downwards when two adjacent clamps in the two layers of clamps are opposite to the turnover mechanism, and the connecting plate can move to enable the gas claw to be located above the blanking guide plate. When a workpiece in the lower-layer fixture is machined and is opposite to the turnover mechanism, the connecting plate moves firstly, so that the blanking cylinder is close to the auxiliary plate, namely the gas claw is opposite to the side part of the workpiece in the fixture, then the blanking cylinder extends out, so that the gas claw clamps the workpiece, then the connecting plate moves away from the auxiliary plate, so that the workpiece is taken out, the blanking cylinder retracts to enable the workpiece to be higher than the inner end of the blanking guide plate, then the connecting plate moves, meanwhile, the blanking cylinder extends out, so that the workpiece is located above the blanking guide plate, and the gas claw releases the workpiece to achieve blanking. The blanking mechanism can only comprise a blanking guide plate, the inner end of the blanking guide plate is arranged below the turnover mechanism, but the blanking guide plate is guaranteed not to interfere with the turnover mechanism, and the workpiece in the lower-layer clamp is clamped by the gas claw on the telescopic cylinder below and then is turned over downwards and released.

In the machine tool, an annular turntable base is fixed on the bed, the lower end of the auxiliary disc is rotatably connected to the turntable base, and a servo motor capable of driving the auxiliary disc to rotate is further arranged in the bed. The lower end of the auxiliary disc is rotatably connected to the turntable base and driven by a servo motor, and the upper end of the auxiliary disc is used for installing components such as an oil separator and the like.

Compared with the prior art, the machine has the following advantages:

1. the power head that is used for processing work piece one end and the power head that is used for processing the other end all are in operating condition when the equal centre gripping work piece of two-layer anchor clamps is in the processing state, consequently still can guarantee higher machining efficiency, simultaneously in view of highly satisfying two anchor clamps of auxiliary disc arrange in vertical side can, consequently this structure is realizing the processing of work piece both ends to when guaranteeing machining efficiency, greatly reduced the height of lathe, can be applicable to the less environment of high space.

Drawings

Fig. 1 is a schematic perspective view of a machine tool.

Fig. 2 is a schematic partial three-dimensional structure diagram of the machine tool after hiding the bed and the power head.

Fig. 3 is a plan view of the machine tool.

Fig. 4 is a sectional view of the structure at a-a in fig. 3.

Fig. 5 is a schematic perspective view of the auxiliary disc and the flip structure.

Fig. 6 is a structural front view of the auxiliary plate and the turnover structure.

Fig. 7 is an enlarged view of the structure at B in fig. 4.

Fig. 8 is an enlarged view of the structure at C in fig. 2.

Fig. 9 is an enlarged view of the structure at D in fig. 2.

In the figure, 1, a bed; 11. a turntable base; 12. a servo motor; 2. a bed body; 21. a cover plate; 211. an observation window; 22. a power head; 3. an auxiliary disc; 31. mounting holes; 4. a clamp; 41. fixing the sleeve; 42. moving the sleeve; 421. an annular convex edge; 422. an oil chamber; 423. pushing the conical surface; 43. a clamping sleeve; 431. a resilient arm; 432. a chuck; 433. pushing the convex part; 44. a limiting cover; 5. a feeding mechanism; 51. a support; 511. a slide rail; 52. a material groove seat; 521. a slider; 53. a material receiving plate; 531. a trough; 54. a material ejection cylinder; 541. pushing the column; 55. a feed cylinder; 6. a turnover mechanism; 61. a telescopic cylinder; 62. a rotating cylinder; 63. a rotating table; 64. a vertical plate; 7. a blanking mechanism; 71. a blanking cylinder; 72. a linear module; 721. a slide plate; 73. a connecting plate; 74. a blanking guide plate; 8. a pneumatic claw; 9. a vibrating pan; 91. a blanking pipeline.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, a machine tool includes a bed 1, a bed 2 and a sub-disc 3, the bed 1 is horizontally disposed, the bed 2 is cylindrical and vertically fixed on the bed 1, a cavity is formed inside the bed 2, an annular turntable base 11 is fixed on the bed 1, the sub-disc 3 is straight cylindrical, the axial length of the sub-disc 3 is greater than the outer diameter of the sub-disc, the sub-disc 3 is vertically disposed, the lower end of the sub-disc 3 is rotatably connected to the turntable base 11, the sub-disc 3 is located inside the bed 2, the top end of the bed 2 is sealed by a cover plate 21, an observation window 211 is formed in the cover plate 21, a servo motor 12 is disposed inside the bed 1, and the servo motor 12 is connected to the lower end of the sub-disc 3 through a speed reducer and other existing transmission components, so as to drive the sub-disc 3 to rotate. Referring to fig. 5 and 6, two layers of jigs 4 are arranged on the side wall of the auxiliary disc 3, the two layers of jigs 4 are distributed up and down, each layer is provided with five jigs 4, the five jigs 4 are circumferentially and uniformly distributed relative to the auxiliary disc 3, the five jigs 4 on the upper layer are arranged corresponding to the five jigs 4 on the lower layer one by one, each jig 4 extends out of the outer peripheral surface of the auxiliary disc 3, the jigs 4 are provided with clamping openings facing outwards along the radial direction of the auxiliary disc 3 and are used for clamping and positioning columnar or tubular workpieces, correspondingly, two layers of power heads 22 are also arranged on the lathe bed 2, the power heads 22 are all columnar, one end of the processing is extended into the lathe bed 2 along the radial direction of the auxiliary disc 3, the two layers of power heads 22 are also distributed up and down, the four power heads 22 on the upper layer are distributed along the circumferential direction and are used for processing one end of the workpiece positioned in the power head 4 on the upper layer, two power heads 22 on the lower layer are distributed along the circumferential direction and are used for processing the other end of the workpiece in the clamp 4 on the lower layer, the number of power heads 22 per layer is set as required by the end of the workpiece machining process. The vibration disc 9 is arranged on the outer side of the bed body 2, the feeding mechanism 5, the turnover mechanism 6 and the discharging mechanism 7 are arranged on the bed body 2 respectively, the feeding mechanism 5, the turnover mechanism 6 and the discharging mechanism 7 are located on the side portion of the auxiliary disc 3, the feeding mechanism 5 and the turnover mechanism 6 can be opposite to two adjacent clamps 4 on the periphery of the auxiliary disc 3 respectively, the discharging mechanism 7 is located on the side portion of the turnover mechanism 6, the feeding mechanism 5 can insert a workpiece in the vibration disc 9 into one clamp 4 on the upper layer, after one end of the workpiece is processed by the power head 22 on the upper layer, the turnover mechanism 6 can take out and turn over the workpiece in the clamp 4 on the upper layer, and then the workpiece is repositioned into the clamp 4 on the lower layer, and after the other end of the workpiece is processed by the power head 22 on the lower layer, the discharging mechanism 7 can take out and release the workpiece.

Specifically, as shown in fig. 7, two layers of mounting holes 31 are formed in the side wall of the auxiliary disc 3, a clamp 4 is installed in each mounting hole 31, the clamp 4 is a collet, and includes a fixed sleeve 41, a movable sleeve 42 and a clamping sleeve 43, the fixed sleeve 41 is fixedly installed in the mounting hole 31 of the auxiliary disc 3, the movable sleeve 42 is radially slidably inserted into the fixed sleeve 41 along the auxiliary disc 3, the clamping sleeve 43 is inserted into the movable sleeve 42, an annular limiting cover 44 is fixed at the outer end of the fixed sleeve 41, the limiting cover 44 can limit the clamping sleeve 43 to prevent the clamping sleeve 43 from axially moving, an annular convex edge 421 is formed on the outer peripheral wall of the movable sleeve 42, oil cavities 422 are respectively formed on two sides of the annular convex edge 421, hydraulic oil for external hydraulic oil to enter to push the movable sleeve 42, a pushing conical surface 423 is circumferentially formed on the inner wall of the movable sleeve 42, and the end of the pushing conical surface 423 with a larger diameter faces outward, the clamping sleeve 43 comprises a plurality of elastic arms 431 distributed circumferentially, a clamping head 432 is arranged at the outer end of each elastic arm 431, the plurality of clamping heads 432 are distributed circumferentially, so that clamping openings are formed on the inner sides of the plurality of clamping heads 432, a pushing convex part 433 is arranged on the outer side wall of each clamping head 432, the pushing convex part 433 abuts against a pushing conical surface 423 of the movable sleeve 42, therefore, when the oil cavity 422 on the inner side is filled with oil, the movable sleeve 42 can push the movable sleeve 42 outwards, the movable sleeve 42 pushes the pushing convex part 433 through the pushing conical surface 423, so that the clamping heads 432 tightly hold the workpiece radially inwards, when the oil cavity 422 on the outer side is filled with oil, the movable sleeve 42 moves inwards, the clamping heads 432 are loosened, and the workpiece is released.

Referring to fig. 8, the feeding mechanism 5 includes a bracket 51, a trough seat 52, a feeding cylinder 55 and a material ejecting cylinder 54, the bracket 51 is fixed on the bed 2 and located inside the bed 2, a sliding rail 511 is fixed on the bracket 51 along the radial direction of the auxiliary disc 3, the trough seat 52 is integrally in a bar-shaped plate shape, a slider 521 is fixed on the lower side surface of the trough seat 52, the slider 521 is slidably connected to the sliding rail 511, the feeding cylinder 55 is fixed on the bracket 51, and a piston rod of the feeding cylinder 55 is fixedly connected to the trough seat 52, so that the feeding cylinder 55 can drive the trough seat 52 to move along the radial direction of the auxiliary disc 3, a material receiving plate 53 is provided on the upper side surface of one end of the trough seat 52 facing the auxiliary disc 3, the material receiving plate 53 is bent in a U-shape to form a trough 531 with an upward opening, and two ends of the trough 531 are through, a material dropping pipe 91 is fixed on the output end of the vibrating disc 9, the output end of the material dropping pipe 91 vertically extends downwards into the bed 2, the end opening of the blanking pipe 91 is opposite to the upper opening of the trough 531, the ejection cylinder 54 is fixed on the upper side face of one end of the trough seat 52 far away from the auxiliary plate 3, the end part of a piston rod of the ejection cylinder 54 is fixed with an ejection column 541, the ejection column 541 is inserted into one end of the trough 531 far away from the auxiliary plate 3, a workpiece in the vibrating plate 9 falls into the trough 531 along the ejection pipe 91 during feeding, at the moment, a columnar or tubular workpiece is radially arranged along the auxiliary plate 3, the feeding cylinder 55 pushes the trough seat 52 to move and approach the auxiliary plate 3, so that the end part of the trough 531 is butted with the clamping opening of the clamp 4, then the ejection cylinder 54 drives the ejection column 541 to extend, and the ejection column 541 can eject the workpiece in the trough 531 into the clamping opening of the clamp 4.

Referring to fig. 9, the turnover mechanism 6 includes two rotary cylinders 62, two telescopic cylinders 61 and two gas claws 8, a vertical plate 64 is vertically fixed on the bed 2, the vertical plate 64 is located inside the bed 2, the two rotary cylinders 62 are both fixed on one side of the vertical plate 64, the two rotary cylinders 62 are distributed up and down, the output ends of the two rotary cylinders 62 both penetrate through the vertical plate 64 and are fixed with a rotary table 63, the two telescopic cylinders 61 are respectively fixed on the two rotary tables 63, that is, the two telescopic cylinders 61 are located on the same side of the vertical plate 64 and are distributed up and down, the two telescopic cylinders 61 can swing in the same vertical plane, the two gas claws 8 are respectively fixed on the end portions of the piston rods of the two telescopic cylinders 61, when the two gas claws 8 swing to the horizontal state, the two gas claws 8 face the auxiliary disc 3 along the radial direction of the auxiliary disc 3, and the auxiliary disc 3 can rotate to enable the two vertically adjacent clamps 4 in the two layers of clamps 4 to respectively face the two gas claws 8, when the two air claws 8 swing to the vertical state, the two air claws 8 can be oppositely arranged. The blanking mechanism 7 comprises a linear module 72, a blanking cylinder 71 and a blanking guide plate 74, the blanking guide plate 74 is long and has a U-shaped cross section with an upward opening, the blanking guide plate 74 is fixed on the bed 2 and close to the telescopic cylinder 61, the inner end of the blanking guide plate is positioned at the inner side of the bed 2, the outer end of the blanking guide plate is inclined downward and extends out of the bed 2, the linear module 72 is fixed at the top of the bed 2 and comprises a cylindrical shell, the outer side of the shell is slidably connected with a sliding plate 721, the inner side of the shell is provided with a translation cylinder for driving the sliding plate 721 to move, the sliding plate 721 is fixed with a connecting plate 73, the connecting plate 73 is vertically downward, the plate surface of the connecting plate 73 faces the auxiliary plate 3, the blanking cylinder 71 is fixed on the plate surface of the connecting plate 73, a piston rod of the blanking cylinder 71 is inclined downward and fixed with a gas claw 8, and when two adjacent clamps 4 in two layers of clamps 4 are opposite to the gas claws 8 on the two telescopic cylinders 61, the gas claw 8 on the telescopic cylinder 61 and the gas claw 8 on the blanking cylinder 71 are the same in structure, and the gas claw 8 cylinder is adopted to drive the two clamping blocks to clamp a workpiece, so that the clamping tool is an existing clamping tool.

When in processing, the vibrating disc 9 makes a workpiece enter the blanking pipeline 91 and fall into the trough 531, the feeding cylinder 55 pushes the trough seat 52 to move and approach the auxiliary disc 3, so that the end part of the trough 531 is butted with the clamping opening of the clamp 4, then the ejection cylinder 54 drives the ejection post 541 to extend out, the ejection post 541 can eject the workpiece in the trough 531 into the clamping opening of the clamp 4, the auxiliary disc 3 rotates to make one end of the workpiece processed by the power head 22 of different upper layers until the workpiece is opposite to the gas claw 8 of the upper telescopic cylinder 61, the upper telescopic cylinder 61 extends out and clamps the workpiece through the gas claw 8, then the telescopic cylinder 61 retracts to make the workpiece separate from the clamp 4, the rotating cylinder 62 rotates to make the workpiece face downwards vertically, the gas claw 8 of the lower telescopic cylinder 61 faces upwards vertically, the piston rod of the lower telescopic cylinder 61 extends out and clamps the workpiece through the gas claw 8, and in the process, the linear module 72 drives the blanking cylinder 71 to be close to the auxiliary disc 3, then the blanking cylinder 71 extends out and clamps a workpiece in the lower clamp 4 through the air claw 8, the workpiece is moved to the upper part of the blanking guide plate 74 after the blanking cylinder 71 retracts and is released, the lower clamp 4 is made to be empty, the rotary cylinder 62 below the lower clamp drives the telescopic cylinder 61 to rotate, the workpiece swings to be opposite to the lower clamp 4, then the telescopic cylinder 61 extends out and inserts the workpiece into the lower clamp 4, the auxiliary disc 3 continues to rotate, and the outer side of the power head 22 at the lower layer processes the other end of the workpiece.

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 terms bed 1, turntable 11, servomotor 12, etc. are used more often herein, the possibility of using other terms is not excluded. 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. A machine tool comprises a bed (1), an auxiliary disc (3) and a plurality of clamps (4) for clamping workpieces, and is characterized in that the auxiliary disc (3) is in a straight cylinder shape and is vertically arranged, the lower end of the auxiliary disc (3) is rotatably connected to the bed (1), the plurality of clamps (4) are arranged on the side wall of the auxiliary disc (3) in an upper layer and a lower layer, a turnover mechanism (6) capable of taking down and turning over the workpiece on one clamp (4) in one layer and then repositioning the workpiece on one clamp (4) in the other layer is further arranged above the bed (1); tilting mechanism (6) include two can be in same vertical plane wobbling gas claw (8), two gas claw (8) all lie in same one side of auxiliary disc (3) and distribute from top to bottom, two gas claw (8) are along auxiliary disc (3) radial orientation auxiliary disc (3) when two gas claw (8) swing to the horizontality, and auxiliary disc (3) can rotate and make two adjacent anchor clamps (4) about in two-layer anchor clamps (4) relative with two gas claw (8) respectively, two gas claw (8) can set up relatively when two gas claw (8) swing to vertical state.

2. The machine tool according to claim 1, characterized in that the number of the clamps (4) in the two layers is the same, and the clamps (4) in the two layers are arranged in one-to-one correspondence from top to bottom.

3. The machine tool according to claim 2, wherein the clamps (4) extend out of the outer peripheral surface of the auxiliary disc (3), the clamping openings of the clamps (4) face outwards in the radial direction of the auxiliary disc (3), and the turnover mechanism (6) is located on the side of the auxiliary disc (3).

4. The machine tool according to claim 1, 2 or 3, wherein a feeding mechanism (5) capable of positioning the workpiece on one layer of the clamps (4) and a discharging mechanism (7) capable of taking the workpiece from the other layer of the clamps (4) are respectively arranged above the bed (1), the feeding mechanism (5) and the turnover mechanism (6) can respectively face two circumferentially adjacent clamps (4) of the auxiliary plate (3), and the discharging mechanism (7) is positioned at the side part of the turnover mechanism (6).

5. The machine tool according to claim 4, characterized in that a cylindrical bed (2) is fixed on the bed (1), the auxiliary disc (3) is positioned in the bed (2), a vertical plate (64) is fixed on the bed (2), two telescopic cylinders (61) capable of swinging in the same vertical plane are arranged on the vertical plate (64), the two telescopic cylinders (61) are distributed up and down, and the two air claws (8) are respectively fixed at the end parts of piston rods of the two telescopic cylinders (61).

6. The machine tool according to claim 5, characterized in that two rotary cylinders (62) are fixed on one side of the vertical plate (64), the output ends of the two rotary cylinders (62) penetrate through the vertical plate (64) and are fixed with rotary tables (63), and the two telescopic cylinders (61) are respectively fixed on the two rotary tables (63).

7. The machine tool according to claim 5, wherein the feeding mechanism (5) comprises a bracket (51) fixed on the machine body (2) and a blanking pipeline (91) positioned above the bracket (51), the port of the blanking pipeline (91) faces downwards, a material groove seat (52) is connected on the bracket (51) in a sliding way along the radial direction of the auxiliary disc (3), a material groove (531) arranged along the radial direction of the auxiliary disc (3) is arranged on the material groove seat (52), a material ejecting cylinder (54) is also fixed on the material groove seat (52), a pushing column (541) positioned in the material groove (531) is fixed at the end part of a piston rod of the material ejecting cylinder (54), a feeding cylinder (55) connected with the material groove seat (52) is fixed on the bracket (51), and the notch of the material groove (531) is opposite to the port of the blanking pipeline (91) when the material groove seat (52) moves away from the auxiliary disc (3), when the trough seat (52) moves towards the auxiliary disc (3) to be close to the auxiliary disc, one end of the trough (531) can be in butt joint with the clamping opening of the clamp (4), and the pushing column (541) can push the workpiece in the trough (531) into the clamping opening of the clamp (4).

8. Machine tool according to claim 5, characterised in that the blanking mechanism (7) comprises a blanking cylinder (71) and a blanking guide plate (74), the blanking guide plate (74) being fixed to the bed (2), one end of the blanking guide plate (74) is positioned at the side part of the turnover mechanism (6), the other end of the blanking guide plate inclines downwards and extends out of the lathe bed (2), a connecting plate (73) capable of moving along the radial direction of the auxiliary disc (3) is arranged on the bed body (2), the blanking cylinder (71) is fixedly connected on the connecting plate (73), an air claw (8) is fixed at the end part of a piston rod of the blanking cylinder (71), when two adjacent clamps (4) in the two layers of clamps (4) are opposite to the turnover mechanism (6), the air claw (8) faces to the central line of the clamp (4) below, the connecting plate (73) can move so that the air claw (8) is positioned above the blanking guide plate (74).

9. The machine tool according to claim 1, 2 or 3, wherein an annular turntable base (11) is fixed on the bed (1), the lower end of the auxiliary disc (3) is rotatably connected to the turntable base (11), and a servo motor (12) capable of driving the auxiliary disc (3) to rotate is further arranged in the bed (1).