CN212398135U - Machine tool for static machining of workpiece - Google Patents

Abstract

The utility model discloses a lathe for static processing of work piece, including headstock and a plurality of from centering fixture, be equipped with servo exhibition tool bit and main shaft servo motor on the headstock, be equipped with cutter regulating block and lathe tool on the servo exhibition tool bit, still be equipped with X axle servo motor and transmission connecting piece on the headstock. In this lathe, two anchor clamps on the anchor clamps of feeling relieved certainly can draw close towards the center and press from both sides tightly and wait to process the work piece, according to waiting to process the length selection of work piece two or more from embracing of centering anchor clamps completion work piece press from both sides, the centre gripping of waiting to process the work piece that this structure can be applicable to different specifications, and can adjust the machining radius of lathe tool through the cutter regulating block on the servo exhibition tool bit of X axle servo motor regulation, and carry out the work piece processing through the rotation of the servo exhibition tool bit of main shaft servo motor drive, thereby realize the processing when the work piece is static, can effectively reduce the cost of work piece processing, and improve machining efficiency, this utility model is used for the lathe structure field.

Description

Machine tool for static machining of workpiece

Technical Field

The utility model relates to a lathe field, in particular to a lathe for static processing of work piece.

Background

The machine tool mainly includes a machine tool for turning a rotating workpiece with a turning tool. On the machine tool, a drill bit, a reamer, a screw tap, a screw die, a knurling tool and the like can be used for corresponding processing, and according to different purposes and structures, the machine tool is mainly divided into a horizontal machine tool, a vertical machine tool, a turret machine tool, a gang tool machine, a profiling machine tool, a multi-tool machine tool and various specialized machine tools, such as a camshaft machine tool, a crankshaft machine tool, a wheel machine tool, a relieving machine tool and the like.

Among all machine tools, the horizontal machine tool is most widely used. The turning process is basically a processing mode in which a workpiece rotates and a tool does not rotate, but the processing mode is not optimal from the viewpoints of energy saving and economy for processing workpieces which are heavy and long especially and odd-shaped workpieces with large rotation diameters, because when the workpiece is heavy especially, the rotating workpiece needs large motor drive, and the rotating speed cannot be too high, so that the energy consumption is high, and the efficiency is low. When the workpiece is very long, the workpiece needs to be driven by a high-power motor firstly, then the workpiece is too long, the rotating speed cannot be too high, and finally the too long workpiece rotates at a high speed, so that a plurality of supporting points are needed, and the machining precision can be influenced to a certain extent due to the rotation of the workpiece; the workpiece with a strange shape and a large rotation diameter can rotate at a high speed only by dynamic balance, so that the cost is increased, and the workpiece with the large rotation diameter requires a large rotation diameter of a machine tool, so that the large machine tool can process the workpiece, and the processing cost is very high.

In view of whether turning of these workpieces, which are particularly heavy, particularly long, odd-shaped, and particularly large in rotation diameter, can be performed in an alternative manner, a common solution for these parts in the market is to perform milling by using a horizontal machining center, and also to perform milling by circumferentially interpolating a milling cutter without rotating the workpiece.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a lathe for the static processing of work piece, when can effectively reduce the processing cost, improve machining efficiency.

According to the utility model discloses an embodiment of the first aspect provides a lathe for static processing of work piece, include the headstock and be located a plurality of from centering anchor clamps that headstock one side interval set up, be equipped with servo exhibition tool bit and drive on the headstock servo exhibition tool bit rotatory main shaft servo motor, be equipped with the cutter regulating block on the servo exhibition tool bit and install in lathe tool on the cutter regulating block, still be equipped with X axle servo motor on the headstock and connect in X axle servo motor with the transmission connecting piece between the servo exhibition tool bit, X axle servo motor drive the transmission connecting piece drives the cutter regulating block is followed servo exhibition tool bit lateral sliding, each from all be equipped with two symmetrical settings and synchronous motion's anchor clamps in opposite directions on the centering anchor clamps.

Has the advantages that: this a lathe for static processing, two anchor clamps on the anchor clamps of feeling relieved certainly can draw close the clamp tightly to wait to process the work piece towards the center, according to waiting to process the length selection of work piece two or more from the centre gripping of the work piece of accomplishing of the anchor clamps of feeling relieved, this structure can be applicable to the centre gripping of the work piece of waiting to process of different specifications, and can adjust the machining radius of lathe tool through the cutter regulating block on the servo exhibition tool bit of X axle servo motor regulation, and carry out work piece processing through the rotation of the servo exhibition tool bit of main shaft servo motor drive, thereby realize the processing of work piece when static, can effectively reduce the cost of work piece processing, and improve machining efficiency.

According to the utility model discloses a lathe for static processing of work piece, the lathe includes the lathe bed, be equipped with Z on the lathe bed to guide rail and Z axle servo motor, the headstock install in can follow on the lathe bed Z is to the guide rail removal, each group sets up in opposite directions the symmetry axis of anchor clamps is followed Z and is arranged.

The bar workpiece to be processed is erected among all the groups of self-centering fixtures, the bar workpiece is clamped through fixtures oppositely arranged on the respective centering fixtures, and a spindle box provided with a servo tool expanding head slides along a Z-direction guide rail under the action of a Z-axis servo motor to feed tools.

According to the utility model discloses a lathe for static processing of work piece, the end connection of headstock has and is used for the installation X axle servo motor's motor cabinet, the transmission connecting piece including set up in X axle lead screw in the motor cabinet with connect in X axle lead screw and servo first pull rod between the exhibition tool bit.

The X-axis servo motor drives the X-axis screw rod to rotate, the whole transmission connecting piece can be pushed to perform telescopic motion, and the whole telescopic motion of the transmission connecting piece can drive the cutter adjusting block in the servo unfolding tool bit to transversely slide, so that the machining radius of the turning tool is adjusted.

The first pull rod is connected with the X-axis screw rod through a connecting sleeve, and a rolling bearing is arranged between the connecting sleeve and the first pull rod, so that when the servo unfolding tool bit is driven to rotate by the main shaft servo motor, the X-axis screw rod can not be driven to rotate, and the structure at the rear part of the transmission connecting piece is not influenced.

According to the utility model discloses a lathe for static processing of work piece, each the side of cutter regulating block is equipped with the driving gear, servo exhibition tool bit in install with the gear that the driving gear engaged with, still be equipped with in the servo exhibition tool bit with the transfer line that the gear links to each other, the transfer line certainly the axis of servo exhibition tool bit stretch out with the end connection of first pull rod.

The X-axis servo motor drives the X-axis screw rod to rotate, the transmission connecting piece is pushed to do telescopic motion, and the far end of the transmission connecting piece drives the gear to act, so that the cutter adjusting block can be driven to transversely slide in the servo unfolding tool bit, and the machining radius of the turning tool is adjusted.

According to the utility model discloses a lathe for static processing of work piece, X axle screw pass through the shaft coupling with X axle servo motor's output is connected.

According to the utility model discloses a lathe for static processing of work piece, the X axle lead screw with the butt joint end of first pull rod is equipped with the adapter sleeve outward, the adapter sleeve with be equipped with the axle sleeve between the X axle lead screw, the adapter sleeve with be equipped with antifriction bearing between the tip of first pull rod, the tip of first pull rod is equipped with and is located the fastening nut of antifriction bearing outer end.

The transmission connecting piece is divided into an X-axis screw rod and a first pull rod which are connected in a segmented mode, and flexible connection is adopted among all segments and among all segments, the servo motor and other connecting pieces.

According to the machine tool for static processing of the workpiece in the embodiment of the first aspect of the utility model, the shaft end of the main shaft box is provided with two self-centering clamps which are arranged at intervals, each self-centering clamp comprises two symmetrically arranged clamps and sliding blocks which are respectively connected with the lower parts of the two clamps, and a horizontal driving mechanism is also arranged, the output end of the horizontal driving mechanism is connected with a second pull rod which transversely passes through the two sliding blocks, a left stop block and a right stop block are arranged on the second pull rod and positioned at two sides of one of the slide blocks, a Z-axis screw rod which is horizontally arranged is arranged below the two slide blocks, the two sides of the Z-axis screw rod are respectively provided with a forward spiral section and a reverse spiral section, the forward spiral section and the reverse spiral section are respectively provided with a nut which moves along with the rotation of the Z-axis screw rod, and a nut seat is connected between the nut and the sliding block.

In the static machining machine tool structure, the self-centering clamp clamps a workpiece to be machined through two opposite and symmetrically arranged clamps, in the machining process, a horizontal driving mechanism is started, when the workpiece to be machined with different sizes is machined, the second pull rod drags the sliding blocks below the two clamps to move in opposite directions, the two sliding blocks move in opposite directions along the Z-axis screw rod along with the nut and the nut seat, the center of the workpiece to be machined clamped between the two clamps can be always in the original position, the clamping precision of the workpiece can be remarkably improved, and the self-centering clamp can be suitable for clamping bars of various specifications.

From the setting of centering anchor clamps for the lathe is in the clamping process who adapts to the bar of different specification diameters, and its centre gripping center maintains unchangeably, thereby the machining radius of the lathe tool on the servo exhibition tool bit that the accessible adjustment axis is unanimous comes the processing of the bar of different specifications.

According to the utility model discloses an embodiment of the first aspect a lathe for static processing of work piece, one side in opposite directions all is equipped with the V type on the anchor clamps and embraces the mouth, the cushion is all installed, two to the both sides that the mouth was embraced to the V type last V type of anchor clamps is embraced mouth and the equal symmetry setting of cushion.

The V-shaped holding openings arranged on the clamps on the two sides are oppositely arranged to form holding openings, workpieces to be processed are placed in the holding openings, four supporting points are formed on the workpieces to be processed through four cushion blocks in the holding openings, and the workpieces to be processed can be kept in a stable clamping state. The V-shaped holding openings and the cushion blocks on the two sides are symmetrically arranged, so that when a bar part is machined, the center of the bar part is always positioned on the symmetry axis of the two oppositely arranged clamps, and stable clamping of workpieces to be machined of different specifications can be maintained.

According to the utility model discloses an embodiment of the first aspect a lathe for static processing of work piece, from centering anchor clamps still including the anchor clamps seat, the both sides of anchor clamps seat are equipped with the support arm, Z axle lead screw erects in two between the support arm, two all be equipped with on the support arm and be used for erectting the bearing of Z axle lead screw is located the both ends of Z axle lead screw all are equipped with the lock sleeve.

The Z-axis screw rod is parallel to the sliding direction of the second pull rod and the two slide blocks, the Z-axis screw rod and the second pull rod are both horizontally arranged, the whole axis of the clamp can be vertically aligned with the gravity center line downwards, and the whole stability of the clamp can be better kept when a workpiece to be machined is machined. Two ends of the Z-axis screw rod are locked and erected between the two support arms on the clamp seat through the locking sleeves, and the bearing supports are arranged at the two ends of the Z-axis screw rod and fixed through the locking sleeves, so that the Z-axis screw rod is prevented from deviating during working and affecting the stability of workpiece clamping.

According to the utility model discloses a lathe for static processing of work piece, horizontal drive mechanism is hydraulic cylinder, hydraulic cylinder's output is equipped with the hydraulic shaft, second pull rod threaded connection in the front end of hydraulic shaft, two all be equipped with the draw bar hole on the slider, the second pull rod passes two the draw bar hole stretches out, the external diameter of the left backstop piece of second pull rod tip is greater than the aperture of draw bar hole is located the second pull rod distal end the opposite side of draw bar hole be equipped with second pull rod threaded connection's right backstop piece, right backstop piece locking makes the second pull rod with be located the second pull rod distal end the slider relatively fixed sets up.

The second pull rod is installed at the front end of the hydraulic shaft through threaded connection, so that the whole clamp can be conveniently assembled, and the second pull rod can be connected with the front end of the hydraulic shaft through the threaded connection after penetrating through the two pull rod holes. The left stop block and the right stop block are respectively installed at two ends of the pull rod hole, when the two clamps move in opposite directions or in a back-to-back direction, the two sliding blocks are driven to slide, the second pull rod and the sliding block located at the far end of the second pull rod can be fixed relatively, movement hysteresis cannot be generated during movement, and therefore precision cannot be affected.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic view of the overall structure of an embodiment of the present invention;

fig. 2 is a schematic structural view of a self-centering clamp in an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a self-centering end of an embodiment of the present invention;

fig. 4 is a schematic view of a connection structure of the servo expander head and the transmission connecting member according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a connection structure of the servo scalpel head and the transmission connecting member in the embodiment of the present invention;

fig. 6 is a front view of a connection structure between the servo expander and the transmission connector according to an embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 3, a machine tool for static processing of a workpiece is provided, which includes a headstock 100 and a plurality of self-centering clamps 200 spaced apart from each other on one side of the headstock 100, the headstock 100 is provided with a servo spreader bit 110 and a spindle servo motor 120 for driving the servo spreader bit 110 to rotate, the servo spreader bit 110 is provided with a tool adjusting block 111 and a turning tool 112 mounted on the tool adjusting block 111, the headstock 100 is further provided with an X-axis servo motor 130 and a transmission connecting member 140 connected between the X-axis servo motor 130 and the servo spreader bit 110, the X-axis servo motor 130 drives the transmission connecting member 140 to drive the tool adjusting block 111 to slide laterally along the servo spreader bit 110, and each of the centering clamps 200 is provided with two symmetrically arranged clamps 210 capable of moving synchronously in opposite directions.

In the machine tool for static processing, two clamps 210 on the self-centering clamp 200 can be drawn close towards the center to clamp a workpiece to be processed, two or more self-centering clamps 200 are selected according to the length of the workpiece to be processed to complete clamping of the workpiece, the structure can be suitable for clamping workpieces to be processed of different specifications, the machining radius of a turning tool 112 can be adjusted by adjusting a tool adjusting block 111 on a servo tool expanding head 110 through an X-axis servo motor 130, and the servo tool expanding head 110 is driven by a main shaft servo motor 120 to rotate to process the workpiece, so that the static processing of the workpiece is realized, the processing cost of the workpiece can be effectively reduced, and the processing efficiency is improved.

In some of the embodiments, the machine tool includes a bed 1000, a Z-guide rail 310 and a Z-axis servo motor 300 are provided on the bed 1000, the headstock 100 is mounted on the bed 1000 to be movable along the Z-guide rail 310, and the symmetry axes of the sets of clamps 210 disposed facing each other are arranged in the Z-direction.

The bar workpieces to be processed are erected among the self-centering clamps 200, the bar workpieces are clamped through the clamps 210 oppositely arranged on the respective centering clamps 200, and the spindle box 100 provided with the servo tool expanding head 110 slides along the Z-direction guide rail 310 under the action of the Z-axis servo motor 300 to feed the tools.

Referring to fig. 4 to 6, in some embodiments, a motor base 131 for mounting the X-axis servo motor 130 is connected to a rear portion of the headstock 100, and the transmission connection member 140 includes an X-axis screw 141 disposed in the motor base 131 and a first pull rod 142 connected between the X-axis screw 141 and the servo expander bit 110.

The X-axis servo motor 130 drives the X-axis screw 141 to rotate, so as to push the transmission connecting member 140 to perform overall telescopic motion, and the overall telescopic motion of the transmission connecting member 140 can drive the cutter adjusting block 111 in the servo spreader bit 110 to slide laterally, so as to adjust the machining radius of the turning tool 112.

The first pull rod 142 is connected with the X-axis lead screw 141 through a connecting sleeve, and a rolling bearing is arranged between the connecting sleeve and the first pull rod 142, so that when the servo spreader bit 110 is driven to rotate by the main shaft servo motor 120, the X-axis lead screw 141 is not driven to rotate, and the structure at the rear part of the transmission connecting piece 140 is not affected.

In some embodiments, the side of each tool adjusting block 111 is provided with a gear, a gear engaged with the gear is installed in the servo extending head 110, and a transmission rod connected with the gear is further installed in the servo extending head 110, and the transmission rod extends out from the axis of the servo extending head 110 and is connected with the end of the first pull rod 142.

The X-axis servo motor 130 drives the X-axis lead screw 141 to rotate, so as to push the transmission connecting member 140 to do telescopic motion, and the distal end of the transmission connecting member 140 drives the gear to act, thereby driving the cutter adjusting block 111 to transversely slide in the servo unfolding tool bit 110, and adjusting the machining radius of the turning tool 112.

Referring to fig. 4 to 6, in some embodiments, the X-axis screw 141 is connected to the output end of the X-axis servo motor 130 through a coupling.

In some embodiments, a connecting sleeve 143 is disposed outside an abutting end of the X-axis wire 141 and the first pull rod 142, a bushing 144 is disposed between the connecting sleeve 143 and the X-axis wire 141, a rolling bearing 145 is disposed between the connecting sleeve 143 and an end of the first pull rod 142, and a fastening nut 146 disposed at an outer end of the rolling bearing 145 is disposed at an end of the first pull rod 142.

The transmission connecting piece 140 is divided into an X-axis screw rod 141 and a first pull rod 142 which are connected in sections, and flexible connections are adopted among the sections and among the sections, the servo motor and other connecting pieces.

In some embodiments, two self-centering clamps 200 are disposed at an interval at a shaft end of the headstock 100, each self-centering clamp 200 includes two symmetrically disposed clamps 210 and sliders 220 connected to lower portions of the two clamps 210, a horizontal driving mechanism 230 is further disposed, an output end of the horizontal driving mechanism 230 is connected to a second pull rod 231, the second pull rod 231 transversely penetrates through the two sliders 220, a left stop block 232 and a right stop block 233 are disposed on two sides of one of the sliders 220 on the second pull rod 231, a horizontally disposed Z-axis screw 240 is disposed below the two sliders 220, a forward spiral section and a backward spiral section are disposed on two sides of the Z-axis screw 240, nuts 241 moving along with rotation of the Z-axis screw 240 are mounted on the forward spiral section and the backward spiral section, and a nut seat 242 is connected between the nuts 241 and the sliders 220.

The screw pitches of the forward spiral section and the reverse spiral section are equal, the rotating directions are opposite, and under the driving of the rotation of the Z-axis screw rod 240, the nuts 241 on the forward spiral section and the reverse spiral section are driven to synchronously drive the nut seats 242 on the two sides to synchronously move.

In the static machining machine tool structure, the self-centering clamp 200 clamps a workpiece to be machined through two opposite and symmetrically arranged clamps 210, in the machining process, the horizontal driving mechanism 230 is started, when the workpiece to be machined with different sizes is machined, the second pull rod 231 drags the slide blocks 220 below the two clamps 210 to move in opposite directions, and the two slide blocks 220 move in opposite directions along the Z-axis lead screw 240 along with the nut 241 and the nut seat 242, so that the center of the workpiece to be machined clamped between the two clamps 210 can be always in the original position, the clamping precision of the workpiece can be obviously improved, and the self-centering clamp can be suitable for clamping bars with various specifications.

The self-centering clamp 200 is arranged, so that the clamping center of the machine tool is kept unchanged in the clamping process of the machine tool suitable for the bar stocks with different specifications and diameters, and the processing radius of the turning tool 112 on the servo expanding tool bit 110 with the consistent processing axis can be adjusted to use the bar stocks with different specifications for processing.

In some embodiments, the opposite sides of the clamps 210 are provided with V-shaped clasping openings 211, the two sides of the V-shaped clasping openings 211 are provided with spacers 212, and the V-shaped clasping openings 211 and the spacers 212 on the two clamps 210 are symmetrically arranged.

V-shaped holding openings 211 arranged on the clamps 210 on the two sides are oppositely arranged to form holding openings, workpieces to be processed are placed in the holding openings, and four supporting points are formed on the workpieces to be processed through four cushion blocks 212 in the holding openings, so that the workpieces to be processed can be kept in a stable clamping state. The V-shaped holding openings 211 and the cushion blocks 212 on the two sides are symmetrically arranged, so that when a bar part is machined, the center of the bar part is always positioned on the symmetrical axes of the two oppositely arranged clamps 210, and stable clamping of workpieces to be machined of different specifications can be maintained.

In some embodiments, the self-centering fixture 200 further includes a fixture base 250, two sides of the fixture base 250 are provided with support arms 251, the Z-axis wire rod 240 is erected between the two support arms 251, the two support arms 251 are provided with bearings 252 for erecting the Z-axis wire rod 240, and two ends of the Z-axis wire rod 240 are provided with locking sleeves 253.

The Z-axis screw 240 is parallel to the sliding direction of the second pull rod 231 and the two sliding blocks 220, the Z-axis screw 240 and the second pull rod 231 are both horizontally arranged, the whole axis of the clamp can be vertically aligned with the gravity center line downwards, and the whole stability of the clamp can be better kept when a workpiece to be machined is machined. Two ends of the Z-axis screw 240 are locked and erected between the two support arms 251 on the clamp seat 250 through a locking sleeve 253, and bearings 252 are arranged at the two ends for supporting and fixing through the locking sleeve 253, so that the Z-axis screw 240 is prevented from deviating during work and affecting the stability of workpiece clamping.

In some embodiments, the horizontal driving mechanism 230 is a hydraulic cylinder, a hydraulic shaft is disposed at an output end of the hydraulic cylinder, the second pull rod 231 is screwed to a front end of the hydraulic shaft, pull rod holes are disposed on the two sliders 220, the second pull rod 231 extends through the two pull rod holes, an outer diameter of a left stop block 232 at an end of the second pull rod 231 is larger than an aperture of the pull rod hole, a right stop block 233 screwed to the second pull rod 231 is disposed at another side of the pull rod hole at a distal end of the second pull rod 231, and the right stop block 233 is locked to fix the second pull rod 231 and the slider 220 at the distal end of the second pull rod 231 relatively.

The second pull rod 231 is installed at the front end of the hydraulic shaft through threaded connection, so that the whole clamp can be conveniently assembled, and the second pull rod 231 can be connected with the front end of the hydraulic shaft through the threaded connection after penetrating through the two pull rod holes. The left stop block 232 and the right stop block 233 are respectively installed at two ends of the pull rod hole, when the two clamps 210 move in opposite directions or in a back-to-back direction, the two sliders 220 are driven to slide, so that the second pull rod 231 and the slider 220 located at the far end of the second pull rod 231 are relatively fixed, movement hysteresis cannot be generated during movement, and therefore precision cannot be affected.

The machine tool structure is provided with two linear coordinate axes of an X axis and a Z axis, the turning tool 112 is moved and driven by the servo unfolding tool bit 110 through the X axis servo motor 130 and an X axis screw rod 141, the turning tool seat is installed on a main shaft of the servo unfolding tool bit 110, X axis feeding motion is carried out through the servo unfolding tool bit 110, and the turning tool 112 rotates at a high speed along with the main shaft, so that the purposes of fixing a workpiece, rotating the turning tool 112 at a high speed and simultaneously feeding the workpiece to turn the excircle \ end face and the inner hole of the workpiece are achieved.

The utility model has the following innovation points and advantages:

the utility model adopts the self-centering fixture 200 of the automatic line, after the height of the clamping center of the self-centering fixture 200 is adjusted to be consistent with the height of the center of the main shaft, after all workpieces with different diameters are clamped, the workpieces are automatically concentric with the main shaft without correction;

the utility model applies the servo tool expanding head 110 to the main shaft, and drives the servo tool expanding head 110 by the X-axis screw rod 141, thereby driving the turning tool 112, and the turning tool 112 of the machine tool has high rotating speed, high feeding precision and high processing efficiency;

the utility model discloses a work piece is motionless the rotation of cutter and is carried out lathe work, is fit for the facing lathe work of large-scale spare part, overlength spare part, the complicated spare part of shape, the spare part that the gyration diameter is big very much, and machining efficiency is high, and the machining precision is high.

The utility model relates to a lathe that work piece is motionless, the cutter is rotatory and feeds is the novel lathe of a structure innovation and theory innovation, can be fit for the processing of work piece length long very much, work piece weight heavy very much, the shape is complicated very much, the diameter of gyration is big very much, economy, energy-conservation, efficient, precision height.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A machine tool for stationary machining of a workpiece, characterized by: including the headstock with be located a plurality of from centering anchor clamps that headstock one side interval set up, be equipped with servo exhibition tool bit on the headstock and drive the rotatory main shaft servo motor of servo exhibition tool bit, be equipped with the cutter regulating block on the servo exhibition tool bit and install in lathe tool on the cutter regulating block, still be equipped with X axle servo motor on the headstock and connect in X axle servo motor with the transmission connecting piece between the servo exhibition tool bit, X axle servo motor drive the transmission connecting piece drives the cutter regulating block is followed servo exhibition tool bit lateral sliding, each all be equipped with two symmetrical settings and synchronous motion's anchor clamps in opposite directions on the self-centering anchor clamps.

2. Machine tool for the stationary machining of workpieces according to claim 1, characterized in that: the lathe comprises a lathe body, wherein a Z-direction guide rail and a Z-axis servo motor are arranged on the lathe body, the spindle box is mounted on the lathe body and can move along the Z-direction guide rail, and the symmetrical axes of the clamps which are oppositely arranged in each group are arranged along the Z direction.

3. Machine tool for the stationary machining of workpieces according to claim 1, characterized in that: the tail of the spindle box is connected with a motor base used for installing the X-axis servo motor, and the transmission connecting piece comprises an X-axis screw rod arranged in the motor base and a first pull rod connected between the X-axis screw rod and the servo unfolding tool bit.

4. A machine tool for the stationary machining of workpieces according to claim 3, characterized in that: the side of each cutter regulating block is provided with a transmission gear, a gear meshed with the transmission gear is installed in the servo unfolding tool bit, a transmission rod connected with the gear is further arranged in the servo unfolding tool bit, and the transmission rod extends out of the axis of the servo unfolding tool bit and is connected with the end of the first pull rod.

5. A machine tool for the stationary machining of workpieces according to claim 3, characterized in that: the X-axis screw rod is connected with the output end of the X-axis servo motor through a coupler.

6. A machine tool for the stationary machining of workpieces according to claim 3, characterized in that: the X-axis screw rod is connected with the first pull rod through the first pull rod, a connecting sleeve is arranged outside the butt joint end of the X-axis screw rod and the first pull rod, a shaft sleeve is arranged between the connecting sleeve and the X-axis screw rod, a rolling bearing is arranged between the connecting sleeve and the end portion of the first pull rod, and a fastening nut located at the outer end of the rolling bearing is arranged at the end portion of the first pull rod.

7. Machine tool for the stationary machining of workpieces according to claim 1, characterized in that: the axle head of headstock is equipped with two intervals and sets up from centering anchor clamps, each from centering anchor clamps include that the bisymmetry sets up anchor clamps and connect respectively in two the slider of anchor clamps below still is equipped with horizontal drive mechanism, horizontal drive mechanism's output is connected with the second pull rod, the second pull rod transversely passes two the slider, lie in one of them on the second pull rod the both sides of slider are equipped with left backstop piece and right backstop piece, two the below of slider is equipped with the Z axle lead screw that the level set up, the both sides of Z axle lead screw set up forward spiral section and backward spiral section respectively, install respectively on forward spiral section and the backward spiral section along with the nut that the Z axle lead screw rotated and carries out the removal, the nut with be connected with the nut seat between the slider.

8. Machine tool for the stationary machining of workpieces according to claim 7, characterized in that: the V-shaped holding opening is formed in one side, opposite to the clamp, of the clamp, cushion blocks are mounted on two sides of the V-shaped holding opening, and the V-shaped holding opening and the cushion blocks on the clamp are symmetrically arranged.

9. Machine tool for the stationary machining of workpieces according to claim 7, characterized in that: from centering anchor clamps still including the anchor clamps seat, the both sides of anchor clamps seat are equipped with the support arm, the Z axle lead screw erects two between the support arm, two all be equipped with on the support arm and be used for erectting the bearing of Z axle lead screw is located the both ends of Z axle lead screw all are equipped with the lock sleeve.

10. Machine tool for the stationary machining of workpieces according to claim 7, characterized in that: the horizontal driving mechanism is a hydraulic oil cylinder, a hydraulic shaft is arranged at the output end of the hydraulic oil cylinder, the second pull rod is in threaded connection with the front end of the hydraulic shaft, pull rod holes are formed in the two sliders, the second pull rod penetrates through the two pull rod holes to extend out, the outer diameter of a left stop block at the end part of the second pull rod is larger than the aperture of each pull rod hole, a right stop block in threaded connection with the second pull rod is arranged on the other side of the pull rod hole at the far end of the second pull rod, and the right stop block is locked to enable the second pull rod and the slider at the far end of the second pull rod to be in relatively fixed arrangement.

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