CN110076587B

CN110076587B - Four-rail lathe bed

Info

Publication number: CN110076587B
Application number: CN201910471840.9A
Authority: CN
Inventors: 汪传宏
Original assignee: Chongqing Honggang CNC Machine Tool Co Ltd
Current assignee: Chongqing Honggang CNC Machine Tool Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-03-31
Anticipated expiration: 2039-05-31
Also published as: CN110076587A

Abstract

The invention relates to the field of numerical control machines, in particular to a four-rail lathe bed, which comprises a base, a slant lathe bed, a tailstock guide rail and a saddle guide rail, wherein the slant lathe bed is positioned on the base; the tops of the tailstock guide rails are all positioned on the same horizontal plane; the base is provided with a cleaning component used for cleaning the tailstock guide rail. This scheme improves through the lathe bed to the lathe, has improved the machining precision of whole lathe.

Description

Four-rail lathe bed

Technical Field

The invention relates to the field of numerical control machine tools, in particular to a four-rail lathe bed.

Background

The basic component of the numerically controlled lathe is a lathe bed, and one important layout of the lathe bed is designed as a slant lathe bed.

The numerical control machine tool adopts an inclined bed layout, so that the floor area of the machine tool can be reduced under the same condition; and the rigidity of the lathe bed can be improved through the design of the integrally closed section, and particularly when a workpiece is machined, cutters with different angles can be configured on the inclined lathe bed due to the inclined arrangement of the inclined lathe bed, so that the workpiece can be machined in multiple angles and all directions, and the operation is more convenient. Therefore, machine tool numerical control machines with an inclined body layout have been widely used in the machine tool machining industry in recent years for various machining of various precision and complicated rotary parts.

As shown in fig. 1, a conventional bed generally includes a base 1 and an inclined bed 2, the inclined bed 2 is located above the base 1, and a saddle rail 3 for moving a saddle assembly 8 and a tailstock rail 5 for moving a tailstock assembly 4 are provided on the inclined bed 2 (hereinafter, the saddle rail 3 and the tailstock rail 5 are collectively referred to as a rail). As shown in fig. 2, no matter the bed saddle guide rail 3 or the tailstock guide rail 5, the top surface of the guide rail has a certain inclination, that is, an included angle is formed between the top surface of the guide rail and the top surface of the base 1, and since the top surface of the guide rail is inclined, the slider at the bottom of the bed saddle component 8 slidably connected to the bed saddle guide rail 3 and the slider of the tailstock component 4 slidably connected to the tailstock guide rail 5 are both required to be designed to be in a shape matched with the top surface of the guide rail, so that the slider is relatively harsh in production and processing, the slider is relatively high in production cost, and the slider is relatively troublesome to assemble when being mounted on the guide rail with the inclined top surface. Moreover, the gravity borne by the saddle guide rail 3 and the tailstock guide rail 5 is also relatively large, and the top surface of the guide rail is inclined, so that the stress on the top of the guide rail is uneven, and the top surface of the guide rail is easy to deform, so that the service life of the guide rail is shortened, and the machining precision is influenced.

In the same way, a pair of tailstock guide rail 5 on this lathe bed, it is high low-order ladder setting now usually, the left guide rail height of tailstock guide rail 5 is less than the height of the guide rail on tailstock guide rail 5 right side promptly, there is the contained angle between the plane that forms between the two and the top surface of base 1, make the gravity of tailstock subassembly 4 that tailstock guide rail 5 bore unstable, make tailstock guide rail 5 take place deformation easily, make the life of tailstock guide rail 5 shorten, also can influence the precision of processing.

In addition, the produced metal iron fillings of present processing are piled up easily at the root of tailstock guide rail 5, are difficult for clearing up it, and in addition, the iron fillings of piling up also easily enter into between the slider of tailstock subassembly 4 and tailstock guide rail 5 and influence the normal slip of tailstock subassembly 4, have influenced the precision of processing.

Disclosure of Invention

The invention aims to provide a four-rail lathe bed, which improves the machining precision of the whole lathe bed by improving the lathe bed of the lathe.

In order to achieve the purpose, the technical scheme of the invention is as follows: a four-rail lathe bed comprises a base, a slant lathe bed, a tailstock guide rail and a saddle guide rail, wherein the slant lathe bed is positioned on the base, the saddle guide rail is positioned on the slant lathe bed, the tailstock guide rail is positioned on the base, and the top surface of the tailstock guide rail and the top surface of the saddle guide rail are both parallel to a horizontal plane; the tops of the tailstock guide rails are all positioned on the same horizontal plane; the base is provided with a cleaning component used for cleaning the tailstock guide rail.

The working principle and the effect of the scheme are as follows: 1. because the top surface of tailstock guide rail and the top surface of bed saddle guide rail all are on a parallel with the horizontal plane, so the top surface of tailstock guide rail and the top surface of bed saddle guide rail are not the slope, and the gravity that the tailstock guide rail bore the tailstock subassembly on the lathe is more even like this, and the bed saddle guide rail bears the gravity that the bed saddle subassembly was also more even on the lathe, and the top surface of bed saddle guide rail and the top surface of tailstock guide rail are difficult to be deformed, do benefit to the life who improves tailstock guide rail and bed saddle guide rail, improve the precision of processing. 2. In addition, the shapes of the sliding blocks of the lathe saddle assembly and the tailstock assembly on the machine tool are not harsh, the sliding blocks are simple to produce and machine, the cost is low, and the assembly between the sliding blocks and the guide rails is facilitated. 3. In addition, because the tops of the plurality of tailstock guide rails are all positioned on the same horizontal plane, the gravity of the tailstock assembly born between different tailstock guide rails is uniform, the tailstock guide rails are not easy to deform, the service life of the tailstock guide rails is prolonged, and the machining precision of the whole machine tool is improved. 4. The clean subassembly in this scheme is used for cleaning the metal iron fillings of tailstock guide rail root to can prevent that iron fillings from entering into between slider and the tailstock guide rail and influencing the normal slip of tailstock subassembly when the slider from sliding on the tailstock guide rail, further guarantee the precision of the processing of lathe. And, clear up the scrap iron through clean subassembly, need not artifical clearance, easy operation is convenient.

Furthermore, the top surface of the base is parallel to the horizontal plane, the heights of the plurality of tailstock guide rails are the same, and the top surfaces of the tailstock guide rails and the top surfaces of the saddle guide rails are both parallel to the top surface of the base. Because the top surface of the base is parallel to the horizontal plane, the top surface of the base is a plane and is not an inclined plane. Because the top surface of the base is a plane and the heights of the tailstock guide rails are the same, the plane where the tops of the tailstock guide rails are located is certainly parallel to the plane of the base, and the plane where the tops of the tailstock guide rails are located is certainly parallel to the horizontal plane. Because the top surface of the tailstock guide rail and the top surface of the saddle guide rail are both parallel to the top surface of the base, the top surfaces of the tailstock guide rail and the saddle guide rail are necessarily planes and are both parallel to the horizontal plane.

Furthermore, the cleaning assembly comprises rotating discs positioned on two sides of the tailstock guide rail, a plurality of chip suction units which are uniformly and circumferentially distributed are arranged on the side surface of the rotating disc, which faces the tailstock guide rail, each chip suction unit comprises a chip suction plate and an intermittently electrified outer electromagnet positioned on the outer side wall of the chip suction plate, the outer electromagnet is electrified when rotating to the bottom of the rotating disc, and the outer electromagnet is powered off when rotating to the top of the rotating disc; the chip suction plate is rotationally connected to the edge of the rotating disc, an elastic piece is arranged between the chip suction plate and the edge of the rotating disc, and a cavity is arranged inside the rotating disc; the cleaning assembly further comprises a trigger mechanism for rotating the chip suction plate at the top of the rotating disc into the cavity. The rotating disc can roll on the plane of the base along the length direction of the tailstock guide rail. The scrap absorbing unit is used for absorbing metal scrap iron on the base, at the root part of the tailstock guide rail or on the tailstock guide rail, namely absorbing the scrap iron when the outer electromagnet is electrified. The rolling disc is at the roll in-process, and the circumference rotation can be made to the inhale bits unit, and when trigger mechanism was not used to inhale the bits unit, it was not located the cavity to inhale the bits unit, and outer electromagnet circular telegram, outer electromagnet produced magnetism to iron fillings on the tailstock guide rail root are attracted. When inhaling the bits unit and rotating the top of rolling disc, because inhale the bits board and rotate and connect on the edge of rolling disc, trigger mechanism makes the chip board of inhaling take place to rotate this moment, it rotates in the cavity to inhale the bits board, outer electromagnet on the chip board of inhaling at rolling disc top is outage simultaneously, iron fillings on the chip board of inhaling at rolling disc top drop, because the chip board of inhaling at rolling disc top is located the cavity, so the iron fillings that drop in the cavity and collect, thereby prevent that iron fillings from dropping the outside of rolling disc, the cleaning effect of iron fillings has been guaranteed. When the bits board of inhaling at the top of rolling disc rotated, it made the elastic component hold power to inhale the bits board, when the bits board of inhaling at the rolling disc top broke away from trigger mechanism's control, the bits board of inhaling that is located the cavity was under the effect of elastic component and reverse reset, elastic component in this scheme can make the bits board of inhaling that is located the cavity reset on the one hand, also can give in addition and inhale the certain hindrance of bits board to the cavity internal rotation, prevent to inhale the bits board and be located the rolling disc bottom and enter into the cavity when, avoid iron fillings in the cavity to fall out from the bottom of rolling disc. Although the chip suction plate is opened when rotating to the top of the rotating disc, when the chip suction plate leaves the trigger mechanism, the chip suction plate is automatically closed under the action of the elastic piece, so that the bottom of the rotating disc is continuously in a closed state. Because inhale bits unit in this scheme towards the tailstock guide rail, the iron fillings that so can be to tailstock guide rail root are carried out the pertinence and are clear away, and the clear away effect is better.

Furthermore, a rotating shaft is connected between rotating discs positioned on the tailstock guide rail, two ends of the rotating shaft are conductive ends, a power supply for supplying power to the conductive ends is arranged in the rotating shaft, one end of the chip suction plate, which is close to the conductive ends, is provided with a conductive part, and the conductive part is connected with a conductive body communicated with an outer electromagnet. The power can supply power for the conductive end, when the chip absorbing plate is positioned at the top of the rotating disc, one end of the chip absorbing plate, which is close to the rotating shaft, is positioned in the cavity, so that the conductive part on the chip absorbing plate cannot be in contact with the conductive end, the power, the conductive end, the conductive part, the conductive body and the outer electromagnet are in an open circuit state, and the outer electromagnet is in a demagnetizing state. When the chip suction plate is reset from the cavity, the conductive part is contacted with the conductive end of the rotating shaft, and current flows through the conductive end, the conductive part and the conductive body to enter the outer electromagnet, so that the outer electromagnet is electrified, and the outer electromagnet generates magnetism. From this, realized through this scheme that outer electromagnet can need not manual control according to inhaling bits board pivoted position auto-power-off and circular telegram, easy operation is convenient, and degree of automation is higher.

Furthermore, clean subassembly is still including being used for the drive block of being connected with the tailstock subassembly, and drive block fixedly connected with second connecting rod rotates in the pivot and is connected with the bearing, and the outer lane fixed connection of bearing is on the second connecting rod. Therefore, the driving block and the tailstock assembly can be connected together, when the tailstock assembly moves, the tailstock assembly drives the driving block to move together, the driving block pushes the bearing through the second connecting rod, the rotating disc is pushed to roll on the base, and the rotating shaft rotates in the bearing. Through this scheme, clean subassembly is under the drive of tailstock subassembly, before the tailstock subassembly moves the relevant position, clears up iron fillings around the tailstock guide rail in advance, need not additionally to set up power, can guarantee that the gesture and the position of tailstock subassembly do not receive the influence of the metal iron fillings that probably scatter around the tailstock guide rail to the precision of having avoided processing the part receives the influence.

Further, trigger mechanism includes the catch bar, and the catch bar is located between the top of two rolling discs, and the both ends of catch bar are the arrow point shape, and the both ends of catch bar are the tip. Therefore, the two ends of the push rod can prop against the chip suction plate at the top of the rotating disc towards the side part of the tailstock guide rail, so that the chip suction plate enters the cavity. When the chip suction plate is far away from the end part of the push rod, the chip suction plate can automatically reset under the action of the elastic piece and restore to a closed state. Because the two ends of the push rod have certain inclination, when the chip suction plate rotates to the two ends of the push rod, the side surface of the end part of the push rod can abut against the end part of the chip suction plate, and the chip suction plate rotating along with the rotating disc rotates towards the cavity along the arrow-shaped side surface under the effect of the abutment of the arrow-shaped side surface of the push rod, so that the chip suction plate can rotate favorably.

Furthermore, the triggering mechanism comprises a plurality of inner electromagnets fixedly installed on the inner wall of one side, far away from the tailstock guide rail, of the cavity, each inner electromagnet is opposite to the chip suction plate, the inner wall of the chip suction plate is fixedly connected with an armature which can attract the inner electromagnets, and the inner electromagnets are electrified when the chip suction plate rotates to the top of the rotating disc. Therefore, when the chip suction plate rotates to the top of the rotating disc, the inner electromagnet is electrified and generates magnetism, so that the armature on the inner wall of the chip suction plate is attracted, and the attraction force between the inner electromagnet and the armature is greater than the elastic force of the elastic piece, so that the elastic force of the elastic piece is overcome, and the chip suction plate rotates towards the cavity. When the scrap absorbing plate rotates to the top of the rotating disc, the scrap iron is located at the bottom of the rotating disc, so that the top of the rotating disc cannot contain the scrap iron, and the scrap iron cannot be attracted when the inner electromagnet attracts. This scheme is compared and is used the catch bar to make and inhale the bits board and open, inhales the bits board and can not produce the collision with the catch bar, does benefit to the life that improves and inhales the bits board, can avoid inhaling bits board and catch bar collision like this and wearing and tearing seriously cause the edge sealing who inhales the bits board not good, avoids iron fillings to spill from the cavity.

Furthermore, trigger mechanism still includes the bracing piece, fixedly connected with busbar on the top of bracing piece, and the carousel is kept away from and is equipped with the conductive post of being connected on the electromagnet including on one side of tailstock guide rail. The supporting rod is used for supporting the electric conductor, and the conductive column can be contacted with the conductive strip. Because the conducting bar is located the top of bracing piece, so the rolling disc rotates the in-process, when inhaling the bits board and rotating the top of rolling disc, lead electrical pillar and can contact with the conducting bar to make interior electro-magnet circular telegram and produce magnetism, when inhaling the bits board and leave the conducting bar along with the rotation of rolling disc, lead electrical pillar and conducting bar separation, thereby make interior electro-magnet outage and demagnetization. Therefore, the internal electromagnet can be automatically powered on and off when reaching the corresponding position, and the operation is simple and convenient.

Furthermore, one side of the rotating disc, which is far away from the tailstock guide rail, is provided with an opening, the opening upper cover is provided with a cover, and a magnet rod is detachably connected in the cavity. From this, the iron fillings that enter into in the cavity can attract on the magnet stick, when needs clear up the iron fillings in the carousel cavity, open the lid, take out the magnet stick to together take out together with iron fillings, improved the cleaning efficiency of iron fillings in the cavity.

Further, the elastic member is a torsion spring. Torsion springs are common elastic members that are easy to purchase and configure.

Drawings

FIG. 1 is a perspective view of a numerically controlled machine tool with an inclined body layout according to the prior art;

FIG. 2 is a right side view of the bed of FIG. 1;

FIG. 3 is a perspective view of the bed after modification;

FIG. 4 is a longitudinal cross-sectional view of the cleaning assembly;

FIG. 5 is a left side view of FIG. 4;

FIG. 6 is a side view of the turn disc adjacent to the tailstock guide;

FIG. 7 is a schematic structural view of the chip suction unit in FIG. 6;

FIG. 8 is a top view of the push rod of FIG. 4;

FIG. 9 is a longitudinal sectional view of the cleaning member in embodiment 4;

fig. 10 is a side view of the rotating disk away from the tailstock guide in embodiment 4.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a base 1, an inclined bed body 2, a saddle guide rail 3, a tailstock assembly 4, a tailstock guide rail 5, a saddle assembly 8, a rotating disc 10, a chip suction plate 11, an outer electromagnet 12, a conductive body 13, a conductive end 14, a push rod 17, a power supply 18, a bearing 19, a driving block 20, a first connecting rod 21, a second connecting rod 22, a rotating shaft 23, an arrow cylinder 24, a supporting rod 25, a conductive strip 26, a conductive column 27 and an armature 28.

Example 1

Substantially as shown in figure 3: the utility model provides a four-rail lathe bed, includes base 1, slant bed body 2, tailstock guide rail 5 and saddle guide rail 3, and slant bed body 2 passes through the fix with screw on base 1, and saddle guide rail 3 is fixed on the inclined plane at slant bed body 2's top, and tailstock guide rail 5 is fixed on base 1's top surface, and base 1's top surface is the plane, and is on a parallel with the horizontal plane. The top surfaces of the tailstock guide rail 5 and the saddle guide rail 3 are parallel to the top surface of the base 1; the top of the two tailstock guide rails 5 is at the same height from the top of the base 1, so the tops of the two tailstock guide rails 5 are both in the same plane and parallel to the top surface of the base 1. The saddle rail 3 is used to slide the saddle assembly 8 in fig. 1, and the tailstock rail 5 is used to slide the tailstock assembly 4.

The base 1 is provided with a cleaning component for cleaning the tailstock guide rail 5. The cleaning assembly in the embodiment comprises an air blowing pump and an air blowing pipe, the air blowing pipe is connected with the air blowing pump, one end, far away from the air blowing pump, of the air blowing pipe faces to the tailstock guide rail 5, and the air blowing pump can be installed on the tailstock assembly 4 in the figure 1 through screws.

For other known structures and principles of the machine tool applied to the four-rail lathe bed in the embodiment, please refer to the patent of the invention of the inclined-lathe-bed flat-guide-rail type turning and milling composite numerical control machine tool disclosed in the publication No. CN 106392645B; for other known and principles of the four-rail bed in this embodiment, please refer to the flat-rail slant bed with oil-water separation structure disclosed in the publication No. CN 106392670B. Therefore, the detailed descriptions of some well-known structures and principles in this embodiment are omitted.

In this embodiment, because the top surface of tailstock guide rail 5 and the top surface of bed saddle guide rail 3 all are on a parallel with the plane at base 1's top, so the top surface of tailstock guide rail 5 and the top surface of bed saddle guide rail 3 are not the slope, tailstock guide rail 5 bears the gravity of tailstock subassembly 4 more evenly like this, bed saddle guide rail 3 bears the gravity of bed saddle subassembly 8 also more evenly, the top surface of bed saddle guide rail 3 and the top surface of tailstock guide rail 5 are difficult to deform, do benefit to the life who improves tailstock guide rail 5 and bed saddle guide rail 3, the precision of improvement processing. In addition, the shape of the sliding block is not harsh, the production and the processing of the sliding block are simple, the cost is low, and the assembly of the sliding block and the guide rail is convenient. In addition, because two tailstock guide rails 5 highly the same, and all be located the top surface of base 1, the top of two tailstock guide rails 5 all is in the coplanar, so the gravity of the tailstock subassembly 4 that bears between the different tailstock guide rails 5 is more even, and tailstock guide rail 5 non-deformable does benefit to the life who improves tailstock guide rail 5 to the machining precision of lathe has been improved.

The clean subassembly in this embodiment is used for cleaning the scrap iron at tailstock guide rail 5 root, and is specific, and the pump of blowing blows away the scrap iron at tailstock guide rail 5 root through the gas blow pipe. Because the air blowing pump is located tailstock subassembly 4, so tailstock subassembly 4 removes the in-process, before the tailstock removes the relevant position, clears up the iron fillings on the tailstock guide rail 5 or the root in advance, need not additionally to set up power, can guarantee that the gesture and the position of tailstock subassembly 4 do not receive the influence of the metal iron fillings that probably scatter on tailstock guide rail 5 to the precision of having avoided processing the part receives the influence. And, clear up the scrap iron through clean subassembly, need not artifical clearance, easy operation is convenient.

Example 2

Referring to fig. 4, the cleaning assembly in this embodiment includes rotating discs 10 located at two sides of the tailstock guide rail 5 in fig. 4, the rotating discs 10 are arranged on the base 1 in a rolling manner along the length direction of the tailstock guide rail 5, a rotating shaft 23 is connected between the two rotating discs 10, two ends of the rotating shaft 23 both penetrate through the rotating discs 10 and are welded on the inner wall of the rotating disc 10 away from the tailstock guide rail 5, a bearing 19 is rotatably connected to the middle of the rotating shaft 23, specifically, the bearing 19 is sleeved on the middle of the rotating shaft 23, and an inner ring of the bearing 19 is welded with the rotating shaft 23; of course, the bearing 19 may not be used, and the sleeve may be rotatably connected to the rotating shaft 23. As shown in fig. 5, the cleaning assembly further includes a driving block 20, the driving block 20 is slidably connected to the base 1 in a manner of matching the sliding groove with the protruding block, a second connecting rod 22 is welded to the driving block 20, one end of the second connecting rod 22, which is far away from the driving block 20, is welded to an outer ring of the bearing 19, and the driving block 20 and the tailstock assembly 4 can be detachably connected together through a bolt.

Referring to fig. 6 and 7, six chip suction units are uniformly and circumferentially distributed on the side of the rotating disc 10 facing the tailstock guide rail 5, each chip suction unit includes a fan-shaped chip suction plate 11 and an outer electromagnet 12 mounted on the chip suction plate 11 through a screw, and a groove capable of accommodating the outer electromagnet 12 is formed in the surface of the chip suction plate 11. Inhale the curved main aspects of bits board 11 and rotate through the round pin axle and connect on the border position of rolling disc 10, inhale and be equipped with the elastic component between the edge of bits board 11 and rolling disc 10, the elastic component in this embodiment is the torsional spring. Referring to fig. 4, the shaft 23 is provided with a power space, a power source 18 is disposed in the power space, and the power source 18 may be a storage battery. The two ends of the rotating shaft 23 are provided with conductive ends 14 connected with the power supply 18 through wires. One end of the scrap absorbing plate 11 close to the conductive end 14 is provided with a conductive part, the conductive part is connected with a conductive body 13, a conducting wire is connected between the conductive body 13 and the outer electromagnet 12, and the conductive part, the conductive body 13 and the conductive end 14 in the embodiment are all made of copper materials. It is easy to think that six axially distributed rubber blocks are arranged at the conductive end 14, so that the conductive parts on different conductive bodies 13 can be separated, adjacent conductive parts are prevented from being connected and short-circuited, or the rubber blocks arranged in an insulating way are adhered on the edge of the chip suction plate 11. For the parts that are likely to cause short circuit in this embodiment, insulation measures are performed, such as coating and isolating with materials such as adhesive tape and rubber, which are not described herein again.

As shown in fig. 4, a cavity is formed inside the rotating disk 10. The cleaning assembly further comprises a trigger mechanism for enabling the chip suction plate 11 at the top of the rotating disc 10 to rotate to the inside of the cavity, the trigger mechanism in the embodiment comprises a push rod 17 located between the two rotating discs 10, two ends of the push rod 17 extend into the cavity, as shown in fig. 5, a first connecting rod 21 is welded on the driving block 20, and one end, far away from the driving block 20, of the first connecting rod 21 is welded on the push rod 17. As shown in fig. 8, both ends of the push rod 17 are arrow-shaped, specifically, both ends of the push rod 17 are welded with arrow cylinders 24, and both ends of the push rod 17 are flush with the small ends of the arrow cylinders 24.

The specific implementation process of the embodiment is as follows: the driving block 20 is fixed on the tailstock assembly 4 on the machine tool in fig. 1 by means of bolt fixing. Referring to fig. 4, initially, the chip suction plate 11 on the top of the rotary disk 10 is pushed by the end of the push rod 17 into the cavity to open the cavity by abutting the end of the push rod 17. When the tailstock assembly 4 moves, the tailstock assembly 4 drives the driving block 20 to move, the driving block 20 pushes the bearing 19 through the second connecting rod 22, so that the rotating disc 10 rolls on the base 1 along the length direction of the tailstock guide rail 5, meanwhile, the driving block 20 drives the push rod 17 to move along the rolling of the rotating disc 10 through the first connecting rod 21, and the push rod 17 is continuously located above the rotating shaft 23. The rotating disc 10 will make the circle rotation in the rolling process, when the chip absorbing unit is far away from the pushing rod 17, it will reset under the action of the elastic component and seal the opening of the corresponding cavity, at this time, the conductive part of the conductive body 13 of the chip absorbing plate 11 will contact and connect with the conductive end 14 of the rotating shaft 23, so the power source 18 will supply power to the electromagnet through the conductive end 14, conductive part and conductive body 13 of the rotating shaft 23, the outer electromagnet 12 will be energized and generate magnetism, thus attracting the iron chips on the root of the tailstock guide rail 5 or the top of the tailstock guide rail 5, after attraction, the iron chips will stick on the outer electromagnet 12 on the bottom of the rotating disc 10. With the rolling of the rotating disk 10, the iron chips gradually rotate to the top of the rotating disk 10 along with the chip suction plate 11. When the scrap absorbing unit gradually rotates to the top of the rotating disc 10, the scrap absorbing plate 11 is rotatably connected to the edge of the rotating disc 10, at the moment, the end of the push rod 17 abuts against the scrap absorbing plate 11 at the top of the rotating disc 10 and enables the side portion of the scrap absorbing plate 11 to slide along the inclined surface of the arrow cylinder 24 and deflect towards the inside of the cavity, the scrap absorbing plate 11 rotates into the cavity, meanwhile, the conductive portion on the conductive body 13 on the conductive body 11 at the top of the rotating disc 10 is separated from the conductive end 14 on the rotating shaft 23, the outer electromagnet 12 on the top of the rotating disc 10 is powered off, scrap iron on the scrap absorbing plate 11 at the top of the rotating disc 10 falls under the action of gravity, and the scrap absorbing plate 11 at the top of the rotating disc 10 is located in the cavity at the moment, so that the falling scrap iron falls into the cavity and is collected, the scrap iron is prevented from falling to the outside of the rotating disc 10, and. When the chip suction plate 11 at the top of the rotating disc 10 rotates, the chip suction plate 11 enables the elastic piece to store force, when the chip suction plate 11 at the top of the rotating disc 10 is separated from the extrusion of the push rod 17, the chip suction plate 11 in the cavity reversely resets under the action of the elastic piece, the end parts of the push rod 17 do not abut against each other, the adjacent chip suction plates 11 are combined together, no gap exists, the chip suction plate 11 is prevented from being still positioned in the cavity when rotating to the bottom of the rotating disc 10, and the iron chips in the cavity are prevented from falling out. Although the chip suction plate 11 is opened when rotating to the top of the rotating disc 10, when the chip suction plate 11 leaves the push rod 17, the chip suction plate 11 is automatically closed under the action of the elastic piece, so that the bottom of the rotating disc 10 is continuously in a closed state, and the iron chips in the cavity are prevented from falling out. Because inhale bits unit in this scheme towards tailstock guide rail 5, the iron fillings that so can 5 roots of tailstock guide rail are carried out the pertinence and are clear away, and it is better to clear away the effect.

It is easy to understand, through the distance of reasonable setting electro-magnet 12 to the rolling disc centre of a circle for when inhaling bits board 11 and rotating the top of rolling disc 10, electro-magnet 12 is located the below of catch bar 17, and catch bar 17 can not extrude electro-magnet 12, only can extrude the position that is located electro-magnet 12 top of inhaling bits board 11. After the chip absorbing plate 11 absorbs the chips, when the chips are driven to be powered off by the push rod 17 for chip removal, on one hand, the push rod 17 can be prevented from extruding part of the chips on the chip absorbing plate 11, so that incomplete drainage is caused, and on the other hand, part of the chips can not fall on the push rod 17, so that the chips can be removed more completely. In this embodiment, both ends of catch bar 17 are owing to be the arrow point shape, so have certain inclination, and when inhaling bits board 11 and rotating the both ends of catch bar 17 like this, the side of catch bar 17 tip can offset the tip of inhaling bits board 11, and the inclined plane similar to two voussoirs offsets, inhales bits board 11 under the effect that the side of catch bar 17 arrow point shape offsets, moves to the tip of catch bar 17 along the side of arrow point shape to guaranteed that inhale bits board 11 is to the cavity internal rotation, do benefit to and make inhales bits board 11 and rotate. It can be understood that, in order to make the chip suction plate 11 slide smoothly with the inclined surface of the arrow cylinder 24, the side surface of the chip suction plate 11 may be provided with a wedge surface structure.

Example 3

In this embodiment, the one side that tailstock guide rail 5 was kept away from to rolling disc 10 is equipped with a plurality of openings, all covers on the opening and is equipped with the lid, and when the scrap iron collection in the cavity was more or less, can take out the lid, and the opening is opened, and automatic discharge in the opening is followed to scrap iron to the discharge of scrap iron has been realized. Of course, can dismantle in the cavity and be connected with the magnet stick, be equipped with the recess if on the cavity inner wall, insert the magnet stick in the recess, the iron fillings in the magnet stick can be collected to the cavity, and after iron fillings are full, open the lid, take out the magnet stick from the opening to the realization is taken out iron fillings from the cavity.

Example 4

Referring to fig. 9 and 10, another triggering mechanism is provided in this embodiment, the triggering mechanism includes a vertical support rod 25, the bottom of the support rod 25 is fixed on the base 1 by screws, a conductive strip 26 is bonded on the top of the support rod 25, the conductive strip 26 is parallel to the tailstock guide rail 5, a storage battery (not shown in the figure) is disposed on the support rod 25, and a lead is connected between the storage battery and the conductive strip 26.

The triggering mechanism further comprises six inner electromagnets fixedly installed on the inner wall of one side, far away from the tailstock guide rail 5, of the cavity through screws, the six inner electromagnets are circumferentially and uniformly distributed, each inner electromagnet is opposite to one chip suction plate 11, a side wall, far away from the tailstock guide rail 5, of the rotating disc 10 is provided with a conductive column 27 connected to the inner electromagnets, a through hole is formed in the side wall, far away from the tailstock guide rail 5, of the specific rotating disc 10, the conductive column 27 on the inner electromagnets penetrates out of the through hole, when the conductive column 27 rotates to the top along with the rotating disc 10, the conductive column 27 can be in contact with the conductive strip 26, and therefore the inner electromagnets are. The inner walls of the scrap absorbing plates 11 are fixedly connected with armatures 28 which can attract the inner electromagnets through screws.

The specific implementation process is as follows: when the chip suction plate 11 rotates to the top of the rotating disc 10, the conductive column 27 and the conductive column 26 are in contact with each other, current flows through the conductive column 26 and the conductive column 27 to electrify the inner electromagnet, the inner electromagnet generates magnetism, so that the armature 28 on the inner wall of the chip suction plate 11 at the top of the rotating disc 10 is attracted, the attraction force between the inner electromagnet and the armature 28 is greater than the elastic force of the elastic piece, so that the elastic force of the elastic piece is overcome, the chip suction plate 11 at the top of the rotating disc 10 rotates towards the cavity, and the iron chips attracted by the outer electromagnet 12 on the chip suction plate 11 fall into the cavity. When the chip suction plate 11 rotates to the top of the rotating disc 10, the iron chips are located at the bottom of the rotating disc 10, so that the top of the rotating disc 10 does not contain the iron chips, and the iron chips are not attracted when the inner electromagnet attracts, so that the attraction between the inner electromagnet and the armature 28 is not interfered by the external iron chips. When the conductive column 27 on the chip suction plate 11 on the top of the rotating disc 10 leaves the conductive strip 26, the inner electromagnet is disconnected, the inner electromagnet loses magnetism, the armature 28 is no longer attracted by the inner electromagnet, and the chip suction plate 11 is reset under the action of the elastic element.

This embodiment is compared and is used catch bar 17 to make and inhale bits board 11 and open, inhales bits board 11 and can not produce the collision with catch bar 17, does benefit to the life who improves and inhales bits board 11, can avoid like this to inhale bits board 11 and catch bar 17 collision and wearing and tearing seriously cause the leakproofness of inhaling bits board 11 not good, avoids iron fillings to spill from the cavity.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various changes and modifications without departing from the concept of the present invention, and these should be construed as the scope of protection of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent. The techniques, shapes, and structural parts, which are omitted from the description of the present invention, are all known techniques.

Claims

1. The utility model provides a four-rail lathe bed, includes base, oblique lathe bed, tailstock guide rail and saddle guide rail, oblique lathe bed is located the base, the saddle guide rail is located oblique lathe bed, its characterized in that: the tailstock guide rail is positioned on the base, and the top surface of the tailstock guide rail and the top surface of the saddle guide rail are both parallel to the horizontal plane; the tops of the tailstock guide rails are all positioned on the same horizontal plane; the base is provided with a cleaning component for cleaning the tailstock guide rail; the top surface of the base is parallel to the horizontal plane; the cleaning assembly comprises rotating discs positioned on two sides of the tailstock guide rail, a plurality of chip suction units which are uniformly and circumferentially distributed are arranged on the side surface of the rotating disc facing the tailstock guide rail, each chip suction unit comprises a chip suction plate and an intermittently electrified outer electromagnet positioned on the outer side wall of the chip suction plate, the outer electromagnet is electrified when rotating to the bottom of the rotating disc, and the outer electromagnet is powered off when rotating to the top of the rotating disc; the chip suction plate is rotatably connected to the edge of the rotating disc, an elastic piece is arranged between the chip suction plate and the edge of the rotating disc, and a cavity is formed in the rotating disc; the cleaning assembly further comprises a trigger mechanism for rotating the chip suction plate on the top of the rotating disc into the cavity.

2. A four-rail bed according to claim 1, wherein: the rotating disc positioned on the tailstock guide rail is connected with a rotating shaft, two ends of the rotating shaft are conductive ends, a power supply for supplying power to the conductive ends is arranged in the rotating shaft, one end of the chip suction plate, which is close to the conductive ends, is provided with a conductive part, and the conductive part is connected with a conductive body communicated with an external electromagnet.

3. A four-rail bed according to claim 2, wherein: the cleaning assembly further comprises a driving block connected with the tailstock assembly, the driving block is fixedly connected with a second connecting rod, a bearing is rotatably connected to the rotating shaft, and an outer ring of the bearing is fixedly connected to the second connecting rod.

4. A four-rail bed according to any one of claims 1 to 3, characterized in that: trigger mechanism includes the catch bar, the catch bar is located between the top of two rolling discs, the both ends of catch bar are the arrow point shape, the both ends of catch bar are the tip.

5. A four-rail bed according to any one of claims 1 to 3, characterized in that: the trigger mechanism comprises a plurality of inner electromagnets fixedly installed on the inner wall of one side, far away from the tailstock guide rail, of the cavity, each inner electromagnet is opposite to the chip suction plate, the inner wall of each chip suction plate is fixedly connected with an armature capable of attracting the inner electromagnet, and the inner electromagnets are electrified when the chip suction plates rotate to the top of the rotating disc.

6. A four-rail bed according to claim 5, wherein: the trigger mechanism further comprises a supporting rod, a conductive bar is fixedly connected to the top of the supporting rod, and a conductive column connected to the inner electromagnet is arranged on one side, away from the tailstock guide rail, of the rotating disc.

7. A four-rail bed according to claim 1, wherein: an opening is formed in one side, away from the tailstock guide rail, of the rotating disc, a cover is arranged on the opening, and a magnet rod is detachably connected in the cavity.

8. A four-rail bed according to claim 1, wherein: the elastic piece is a torsion spring.