CN112222427A

CN112222427A - Numerical control double-end lathe

Info

Publication number: CN112222427A
Application number: CN202011070768.8A
Authority: CN
Inventors: 庄燕玲
Original assignee: Individual
Current assignee: Jiangsu Baizheng Cnc Equipment Co ltd
Priority date: 2020-10-05
Filing date: 2020-10-05
Publication date: 2021-01-15
Anticipated expiration: 2040-10-05
Also published as: CN112222427B

Abstract

The invention discloses a numerical control double-head lathe, which structurally comprises support legs, a lathe body, an anti-collision guard plate, a protective door, a blocking device, a cutting tool rest, a telescopic rod and an operation panel, the nut pair is arranged on the clamping groove, no gap is left between the nut pair and the clamping groove, the protective backing plate is connected together under the pressure of the two clamping grooves, cutting chips are effectively prevented from falling into a thread gap on the screw rod, the lead screw rotates in threaded sleeve inside, and threaded sleeve can receive the vibrations that the lead screw produced because of the operation of motor and feel, and the briquetting can feel lead screw pivoted vibrations and feel the fastener, and the elastic component can cooperate and press from both sides the cover and lead the system to the fastener, and the no elasticity stay cord of reuse is pressed from both sides the cover to carry out the tractive to two, can prevent effectively that the briquetting from removing, and the lead screw can be stabilized and rotate in threaded sleeve inside, guarantees the stability of cutting knife rest cutting.

Description

Numerical control double-end lathe

Technical Field

The invention relates to the field of numerically controlled lathes, in particular to a numerically controlled double-head lathe.

Background

Numerical control lathe is a high accuracy and efficient automatic lathe for process various parts, play important effect in the batch production of part, numerical control lathe cuts the part through the processing cutter, and then obtains qualified product, and when the cutter spare was adjusted on the lead screw, will separate and keep off the component and install outside the lead screw, effectively prevent cutting bits or dust and drop in thread gap, add man-hour to the part, need the modified place:

when a part is processed, the tool rest needs to be movably adjusted to an appropriate position on the screw rod, when the tool rest moves on the screw rod, the whole screw rod is exposed outside, the screw rod is externally provided with threads, cutting chips can be generated by the tool in the process of processing the part, the cutting chips can splash due to the high-speed operation of the tool, the splashed cutting chips easily fall into a thread gap on the screw rod, and the nut pair cannot be stably adjusted and processed due to the obstruction of the cutting chips in the process of translational adjustment of the nut pair on the screw rod, and the lead screw can be swung by the vibration force of the motor when rotating, the nut pair drives the cutting tool rest to adjust the position on the lead screw, the swinging force of the lead screw can be applied to the cutting tool rest, and the blades on the cutting tool rest can be dislocated, slide off and the like under the action of the swinging force, so that the cutting efficiency of parts is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a numerical control double-head lathe to solve the problems that when a part is machined, a tool rest needs to be movably adjusted to an adaptive position on a screw rod, when the tool rest moves on the screw rod, the whole screw rod is exposed outside, threads are arranged outside the screw rod, cutting chips can be generated by the tool in the process of machining the part, the cutting chips can splash due to high-speed operation of the tool, the splashed cutting chips can easily fall into thread gaps on the screw rod, the nut pair can be blocked by the cutting chips in the process of translational adjustment on the screw rod, so that the nut pair cannot be stably adjusted, the screw rod can swing due to the vibration force of a motor during rotation, the nut pair drives the cutting tool rest to adjust the position on the screw rod and also receives the swinging force of the screw rod, and the blades on the cutting tool rest can be dislocated due to the swinging force, The phenomenon of sliding and the like affects the cutting efficiency of the parts.

In order to achieve the purpose, the invention is realized by the following technical scheme: a numerical control double-head lathe structurally comprises support legs, a lathe body, an anti-collision protective plate, protective doors, a blocking device, cutting tool rests, telescopic rods and an operating panel, wherein the support legs are inserted and embedded at the bottom of the lathe body, the protective doors are arranged on the lathe body and are arranged on two sides of the lathe body, the protective doors and the anti-collision protective plate are arranged on the same plane, one side of each protective door is connected with the anti-collision protective plate, two protective doors are arranged on two sides of each telescopic rod and are buckled with each other through the telescopic rods, the operating panel is arranged on each protective door and is embedded and fixed on the corresponding protective door, the operating panel is electrically connected with the inner part of the lathe body through electric wires, two inner sides of the lathe body are arranged on the cutting tool rests which are arranged on the blocking device, and the cutting tool rests are matched, the bottom of the blocking device is nested on the machine body.

As a further improvement of the invention, the blocking device comprises a motor, a limiting groove, a nut pair, a protection component, a screw rod and a cavity, wherein the motor is installed at one end of the screw rod, the screw rod is inserted and embedded in the motor in parallel, the screw rod penetrates and is embedded in the limiting groove, the limiting groove is installed at two ends of the cavity, the protection component is arranged at the top of the cavity and is vertically buckled on the cavity, the screw rod is installed in the cavity, the nut pair is arranged on the screw rod and is matched with the screw rod in a meshing mode, the nut pair is installed on a cutting tool rest which is embedded in the nut pair, two sides of the nut pair are connected with the inner wall of the protection component, two sides of the protection component are connected with the inner wall of the machine body through the cavity, and the cavity is clamped and.

As a further improvement of the invention, the protection assembly comprises a connecting plate, a fixed seat and protection resistance pieces, wherein the connecting plate is arranged at the middle position in the fixed seat, the fixed seat is vertically buckled at the top of the cavity, the protection resistance pieces are arranged in the fixed seat, the protection resistance pieces are equidistantly and parallelly arranged on the fixed seat, the protection resistance pieces are arranged at two sides of the connecting plate, the connecting plate is buckled with the bottom of the nut pair, and two sides of the nut pair are connected with the interior of the protection resistance pieces.

As a further improvement of the invention, the protective resistance piece comprises a protective backing plate, supporting blocks, clamping grooves and buffer pieces, wherein the protective backing plate is arranged on the clamping grooves, the supporting blocks are arranged in the clamping grooves, two ends of each supporting block are tightly buckled on two sides of each clamping groove, the buffer pieces are arranged at the bottoms of the clamping grooves, one ends of the buffer pieces are buckled on the clamping grooves in a buckling mode, the other ends of the buffer pieces are embedded in the inner wall of the fixed seat, the clamping grooves are arranged on two sides of the connecting plate, and the connecting plate and the protective backing plate.

As a further improvement of the invention, the buffer part comprises two elastic rods, an upper protection plate and a lower protection plate, the two elastic rods are embedded between the upper protection plate and the lower protection plate, the upper protection plate and the lower protection plate are connected into a whole through the elastic rods, the upper protection plate, the lower protection plate and the elastic rods mutually form a 'II' structure, one ends of the upper protection plate and the lower protection plate are respectively buckled at the bottom of the supporting block and the inner wall of the fixed seat, the upper protection plate is connected with the supporting block, and the lower protection plate is matched with the fixed seat.

As a further improvement of the invention, the limiting groove comprises fasteners, a pressing block, a pulling piece, a threaded sleeve and a shell, wherein the fasteners are arranged in the shell, eight fasteners are arranged on the shell, the pulling piece is arranged between the two fasteners, the pulling piece and the fasteners are connected into a whole through the shell, two ends of the pulling piece are connected to the fasteners through the shell, the fasteners are buckled with one end of the pressing block, two ends of the pressing block are buckled on the two fasteners, the pressing block is connected with the shell through the fasteners, the middle position of the inner wall of the pressing block is connected with the outer wall of the threaded sleeve, the interior of the threaded sleeve is connected with a lead screw, the lead screw is matched with the threaded sleeve in a threaded mode, the threaded sleeve is arranged at the middle position in the shell, and the shell is.

As a further improvement of the invention, the restraining part comprises two elastic parts, a limiting chuck, a fixing plate, a non-elastic pull rope and a jacket, wherein the two elastic parts are arranged at two sides of the limiting chuck, the elastic parts and the limiting chuck are arranged on the same straight line, one end of each elastic part is arranged on the fixing plate, the fixing plate is fixedly embedded on the elastic parts in a penetrating manner, the fixing plate is clamped on the jacket, the jacket is connected with the elastic parts into a whole through the fixing plate, the non-elastic pull rope is arranged at one side of the jacket, the non-elastic pull rope is connected inside the jacket in a penetrating manner, one end of the jacket is connected with the fastener into a whole through the shell, and the shell and the non-elastic pull rope form a parallel.

As a further improvement of the invention, the limiting chuck comprises a movable disc, pull buckle rods, two pull blocks and two partition plates, wherein the movable disc is provided with the two partition plates, the partition plates are inserted and embedded at two sides of the movable disc, the middle position of the movable disc is provided with the pull blocks, two ends of each pull block are connected with one end of each pull buckle rod, the two pull buckle rods are arranged, one ends of the two pull buckle rods penetrate through and are embedded on the elastic piece, the other ends of the two pull buckle rods are arranged on the movable disc, the movable disc is connected with the pull buckle rods through the pull blocks, and the bottoms of the movable disc are matched with the shell in a movable clamping manner.

Advantageous effects of the invention

The invention relates to a numerical control double-head lathe, which has the following beneficial effects:

1. according to the invention, the protective backing plate, the supporting block, the clamping groove and the buffer part are arranged, the nut pair is fixedly arranged between the clamping grooves, the joint between the clamping groove and the nut pair is protected by the protective backing plate, other clamping grooves which are not connected to the nut pair are pushed upwards by the buffer part, and the protective backing plate is connected together under the pressure of the two clamping grooves, so that an airtight space is formed in the cavity, the splashed cutting chips can be effectively prevented from falling onto a lead screw in the cavity, and the nut pair can be ensured to stably drive the cutting tool rest to perform translation adjustment on the lead screw.

2. The invention is provided with the combination of the pressing block and the threaded sleeve, the screw rod rotates in the threaded sleeve, the threaded sleeve can receive the vibration sense of the screw rod generated by the operation of the motor, the positions of the periphery of the threaded sleeve are limited by the pressing blocks, and the periphery of the threaded sleeve is uniformly extruded by the four pressing blocks, so that the periphery of the threaded sleeve is uniformly stressed, the swinging caused by the vibration sense of the screw rod is avoided, and the screw rod can be stably inserted in the threaded sleeve to rotate.

3. The invention is provided with the combination of the pull buckle rod, the traction block and the partition plate, the fastener can move under the vibration sense, the pull buckle rod can be driven by the elastic part to drive the traction block to rotate, the movable position of the traction block is limited through the partition plate, the movable space of the fastener is reduced, the two jackets are pulled by the non-elastic pull rope, the fastener is ensured not to have displacement, the press block can be tightly attached to the threaded sleeve, and the adjustment stability of the threaded sleeve is improved.

In summary, the invention adopts a combination of support legs, a machine body, an anti-collision protective plate, a protective door, a blocking device, a cutting tool rest, a telescopic rod and an operation panel to form a novel numerical control double-end lathe, a nut pair is arranged on a clamping groove, no gap is left between the nut pair and the clamping groove, a protective backing plate is connected together under the pressure of the two clamping grooves, cutting chips are effectively prevented from falling into a thread gap on a screw rod, the screw rod rotates in a threaded sleeve, the threaded sleeve can receive vibration generated by the screw rod due to the operation of a motor, a pressing block can guide the vibration generated by the screw rod to a fastener, an elastic piece can be matched with a clamping sleeve to restrain the fastener, and then a non-elastic pull rope is used for drawing the two clamping sleeves, so that the pressing block can be effectively prevented from moving, the screw rod can stably rotate in.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a numerically controlled double-headed lathe according to the present invention;

fig. 2 is a schematic cross-sectional view of the blocking device of the present invention.

Fig. 3 is a schematic top plan view of the shield assembly of the present invention.

Fig. 4 is a schematic cross-sectional view of the protection stopper of the present invention.

Fig. 5 is an enlarged structural diagram of a in fig. 4.

FIG. 6 is a schematic side sectional view of the limiting groove of the present invention.

FIG. 7 is a schematic view of the internal structure of the pulling member of the present invention.

Fig. 8 is a schematic cross-sectional view of the spacing chuck of the present invention.

In the figure: a supporting leg-1, a machine body-2, an anti-collision guard plate-3, a protective door-4, a blocking device-5, a cutting tool rest-6, an expansion link-7, an operation panel-8, a motor-51, a limiting groove-52, a nut pair-53, a protective component-54, a lead screw-55, a cavity-56, a connecting plate-541, a fixed seat-542, a protective blocking piece-543, a protective backing plate-431, a supporting block-432, a clamping groove-433, a buffer piece-434, an elastic rod-P1, an upper guard plate-P2, a lower guard plate-P3, a fastener-521, a pressing block-522, a traction piece-523, a threaded sleeve-524, a shell-525, an elastic piece-231, a limiting chuck-232, a fixed plate-233, an inelastic pull rope-234, a pull rope, Jacket-235, movable disc-Q1, pull buckle rod-Q2, pulling block-Q3 and clapboard-Q4.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

Referring to fig. 1, the present invention provides a technical solution: a numerical control double-end lathe structurally comprises supporting legs 1, a lathe body 2, an anti-collision protective plate 3, protective doors 4, a blocking device 5, cutting tool rests 6, telescopic rods 7 and an operating panel 8, wherein the supporting legs 1 are inserted into the bottom of the lathe body 2, the lathe body 2 is provided with the protective doors 4, the protective doors 4 are installed on two sides of the lathe body 2, the protective doors 4 and the anti-collision protective plate 3 are arranged on the same plane, one sides of the protective doors 4 are connected with the anti-collision protective plate 3, the protective doors 4 are provided with two protective doors 4, the two protective doors 4 are respectively connected with two sides of the telescopic rods 7, the two protective doors 4 are buckled through the telescopic rods 7, the operating panel 8 is installed on the protective doors 4, the operating panel 8 is fixedly embedded on the protective doors 4, the operating panel 8 is electrically connected with the inner part of the lathe body 2 through electric wires, the two inner sides of, the cutting tool rest 6 is matched with the blocking device 5 in a movable clamping mode, and the bottom of the blocking device 5 is nested on the machine body 2.

Referring to fig. 2, the blocking device 5 includes a motor 51, a limiting groove 52, a nut pair 53, a protection assembly 54, a lead screw 55, and a cavity 56, the motor 51 is installed at one end of the lead screw 55, the lead screw 55 is inserted into the motor 51 in parallel, the lead screw 55 is inserted into the limiting groove 52 in a penetrating manner, the limiting groove 52 is installed at two ends of the cavity 56, the protection assembly 54 is installed at the top of the cavity 56, the protection assembly 54 is vertically fastened on the cavity 56, the lead screw 55 is installed in the cavity 56, the nut pair 53 is installed on the lead screw 55, the nut pair 53 is engaged with the lead screw 55, the nut pair 53 is installed on the cutting tool holder 6, the cutting tool holder 6 is embedded on the nut pair 53, two sides of the nut pair 53 are connected with the inner wall of the protection assembly 54, two sides of the protection assembly 54 are connected with the inner wall, the cavity 56 is clamped inside the body 2.

The screw 55 is used for driving the nut pair 53 to move, the motor 51 is driven, the motor 51 drives the screw 55 to rotate, and the gear inside the screw 55 is meshed with the gear inside the nut pair 53, so that the nut pair 53 can drive the cutting tool rest 6 to move left and right on the screw 55 to adjust the position.

Referring to fig. 3, the protection component 54 includes a connection plate 541, a fixing seat 542, and protection blocking members 543, the connection plate 541 is disposed at a middle position inside the fixing seat 542, the fixing seat 542 is vertically fastened to the top of the cavity 56, the protection blocking members 543 are mounted inside the fixing seat 542, the protection blocking members 543 are equidistantly and parallelly arranged on the fixing seat 542, the protection blocking members 543 are disposed at two sides of the connection plate 541, the connection plate 541 is fastened to the bottom of the nut pair 53, and two sides of the nut pair 53 are connected to the inside of the protection blocking members 543.

Referring to fig. 4, the protection blocking member 543 includes a protection pad 431, a supporting block 432, a clamping groove 433, and a buffer member 434, the protection pad 431 is disposed on the clamping groove 433, the supporting block 432 is mounted inside the clamping groove 433, two ends of the supporting block 432 are fastened to two sides of the clamping groove 433, the buffer member 434 is disposed at the bottom of the clamping groove 433, one end of the buffer member 434 is fastened to the clamping groove 433, the other end is fastened to the inner wall of the fixing base 542, the clamping groove 433 is mounted on two sides of the connection plate 541, and the connection plate 541 and the protection pad 431 form a parallel structure.

The supporting block 432 is used for supporting the clamping grooves 433, the width between the two clamping grooves 433 is consistent with that of the nut pair 53, the nut pair 53 is fastened on the connecting plate 541 to move left and right, the side wall of the nut pair 53 can be in contact with the clamping grooves 433, pushing force can be generated between the nut pair 53 and the clamping grooves 433, the supporting block 432 is fixedly supported between the nut pair 53 and the clamping grooves 433, no gap exists between the nut pair 53 and the clamping grooves 433, and the nut pair 53 can drive the cutting tool rest 6 to be stably adjusted.

Referring to fig. 5, the buffer 434 includes two elastic rods P1, an upper protection plate P2, and a lower protection plate P3, where two elastic rods P1 are provided, the two elastic rods P1 are embedded between the upper protection plate P2 and the lower protection plate P3, the upper protection plate P2 and the lower protection plate P3 are connected into a whole through an elastic rod P1, the upper protection plate P2, the lower protection plate P3 and the elastic rod P1 form a "ii" structure, one ends of the upper protection plate P2 and the lower protection plate P3 are respectively fastened to the bottom of the supporting block 432 and the inner wall of the fixing seat 542, the upper protection plate P2 is connected to the supporting block 432, and the lower protection plate P3 is matched with the fixing seat 542.

The elastic rod P1 is used for buffering the nut pair 53, the motor 51 drives the screw rod 55 to generate certain vibration in the rotating process, the nut pair 53 adjusts the position left and right through the screw rod 55, the vibration generated when the nut pair 53 moves is relieved through the elastic rod P1, and the phenomenon that the cutting tool rest 6 is displaced due to the vibration of the nut pair 53 is prevented.

Example two

Referring to fig. 6, the limiting groove 52 includes a fastening member 521, a pressing block 522, a restraining member 523, a threaded sleeve 524, and a housing 525, the fasteners 521 are installed inside the housing 525, eight fasteners 521 are arranged on the housing 525, a pulling member 523 is arranged between two fasteners 521, the pulling member 523 and the fastener 521 are connected into a whole through the housing 525, two ends of the pulling member 523 are connected to the fastener 521 through the housing 525, the fastener 521 is fastened with one end of the pressing block 522, two ends of the pressing block 522 are fastened on the two fasteners 521, the pressing block 522 is connected with the shell 525 through a fastener 521, the middle position of the inner wall of the pressing block 522 is connected with the outer wall of the threaded sleeve 524, the threaded sleeve 524 is internally connected to the lead screw 55, the lead screw 55 is threadedly engaged with the threaded sleeve 524, the threaded sleeve 524 is mounted in an intermediate position inside the housing 525, the housing 525 being fitted in parallel in an intermediate position in the cavity 56.

The pressing block 522 is used for limiting the position of the threaded sleeve 524, the screw rod 55 rotates inside the threaded sleeve 524, the threaded sleeve 524 can receive the vibration sense of the rotation of the screw rod 55, and the pressing block 522 limits the position around the threaded sleeve 524 to prevent the threaded sleeve 524 from generating displacement phenomenon due to the fact that the threaded sleeve 524 receives the vibration of the screw rod 55.

Referring to fig. 7, the pulling member 523 includes two elastic members 231, a limiting chuck 232, a fixing plate 233, a non-elastic pulling rope 234, and a jacket 235, where the two elastic members 231 are installed at two sides of the limiting chuck 232, the elastic members 231 and the limiting chuck 232 are installed on the same straight line, one end of the elastic member 231 is installed on the fixing plate 233, the fixing plate 233 is embedded in the elastic member 231 in a penetrating manner, the fixing plate 233 is fastened to the jacket 235, the jacket 235 is connected to the elastic members 231 through the fixing plate 233 into a whole, the non-elastic pulling rope 234 is installed at one side of the jacket 235, the non-elastic pulling rope 234 is connected to the inside of the jacket 235 in a penetrating manner, one end of the jacket 235 is connected to the fastener 521 through the shell 525 into a whole, and the shell 525 and the non-elastic pulling rope.

The non-elastic pulling rope 234 is used for being matched with the clamping sleeve 235, the clamping sleeve 235 is installed between the two fasteners 521, when the fasteners 521 are moved inwards or outwards by the movement of the limiting chuck 232, the two fasteners 521 are restrained by the clamping sleeve 235, the non-elastic pulling rope 234 is not elastic, the clamping sleeve 235 is restrained by the non-elastic pulling rope 234 and cannot be opened outwards, the pressing block 522 cannot slide, and the threaded sleeve 524 can be stably fixed on an operation position.

Referring to fig. 8, the limiting chuck 232 includes a movable disc Q1, a pulling rod Q2, a pulling block Q3 and a partition plate Q4, two partition plates Q4 are disposed on the movable disc Q1, the partition plates Q4 are inserted and embedded on two sides of the movable disc Q1, a pulling block Q3 is disposed in the middle of the movable disc Q1, two ends of the pulling block Q3 are connected with one end of the pulling rod Q2, two pulling rods Q2 are disposed, one ends of the two pulling rods Q2 are inserted and embedded in the elastic member 231, the other ends of the two pulling rods Q2 are mounted on the movable disc Q1, the movable disc Q1 is connected with the pulling rod Q2 through the pulling block Q3, and the bottom of the movable disc Q1 is movably engaged with the housing 525.

The partition plate Q4 is used for limiting the moving position of the pulling block Q3, the partition plate Q4 is inserted into the moving disc Q1, the pulling block Q3 is installed on the moving disc Q1, the pulling force of the elastic piece 231 on the pulling buckle rod Q2 drives the pulling block Q3 to rotate, the moving position of the pulling block Q3 is limited through the partition plate Q4, the moving space of the fastener 521 is reduced, the four pressing blocks 522 can stably extrude the threaded sleeve 524, the stress on the periphery of the threaded sleeve 524 is uniform, and the screw rod 55 can stably rotate inside the threaded sleeve 524.

The working principle of the above technical solution is explained as follows:

when the anti-collision device is used, a worker opens the protective door 4, protects the side edge of the protective door 4 through the anti-collision protective plate 3, installs parts to be machined in the machine body 2, operates the machine body 2 by clamping a power supply through the operation panel 8, can quickly machine two sides of the parts through the two cutting tool rests 6, and can prevent cutting scraps generated by cutting of the cutting tool rests 6 from falling on the lead screw 55 through the blocking device 5, so that the lead screw 55 can be stably operated and adjusted.

When a part is processed, a worker operates the operation panel 8 to drive the motor 51, the motor 51 drives the screw 55 to rotate, gears inside the screw 55 are meshed with gears inside the nut pair 53, the nut pair 53 can stably rotate on the screw 55, the nut pair 53 drives the cutting tool rest 6 to movably adjust the position on the screw 55 in the left and right directions, the connecting plates 541 are clamped and fixed on two sides of the nut pair 53, the inner wall of the nut pair 53 can be stably clamped and buckled on the screw 55 in the left and right moving process, the side wall of the nut pair 53 can be in contact with the clamping grooves 433 to open gaps between the clamping grooves 433, so that the inner walls of the two clamping grooves 433 are just matched with the inner wall of the nut pair 53, pushing force can be generated between the two clamping grooves, the connecting part between the clamping groove 433 and the nut pair 53 is protected by the protective base plate 431, scraping of the connecting part between the clamping groove 433 and the nut pair 53 is prevented, and the supporting block 432 is fixedly supported between the, make the zero clearance between vice 53 of nut and draw-in groove 433, vice 53 of nut drives cutting tool holder 6 and adjusts to the operating position on, other draw-in groove 433 that will not be connected to vice 53 of nut pushes up through bolster 434, make draw-in groove 433 at fishplate bar 541 both ends can link together, process the part through cutting tool holder 6, the part can produce the cutting bits at the in-process of cutting process, the cutting bits can appear splashing because of the high-speed operation of sword spare, the pressure connection that protective pad 431 received two draw-in grooves 433 is in the same place, make the inside airtight space that forms of cavity 56, make the cutting bits that splash be difficult for dropping inside cavity 56, effectively prevent the cutting bits from dropping in the thread gap on the lead screw, guarantee that vice drive cutting tool holder 6 that can be stable of nut carries out the translation adjustment on lead screw 55, improve lead screw 55's result of.

The screw 55 is fastened inside the threaded sleeve 524 in a penetrating manner, the threads on the screw 55 are matched with the threaded sleeve 524 for rotation adjustment, the screw 55 rotates inside the threaded sleeve 524, the threaded sleeve 524 can receive vibration generated by the operation of the motor of the screw 55, the positions around the threaded sleeve 524 are limited by the pressing blocks 522, the pressing blocks 522 can guide the vibration generated by the rotation of the screw 55 to the fasteners 521, the fasteners 521 can move inwards or outwards due to the vibration, the elastic members 231 can be matched with the jackets 235 to restrain the fasteners 521, the pull buckle rod Q2 can be pulled by the elastic members 231 to drive the pull block Q3 to rotate, the movable position of the pull block Q3 is limited by the partition plate Q4 to reduce the movable space of the fasteners 521, the two jackets 235 are pulled by the inelastic pull rope 234, the inelastic pull rope 234 is made of inelastic materials, and the jackets 235 cannot be opened outwards due to the traction of the inelastic pull rope 234, make fastener 521 can not appear the removal of great position, guarantee that four briquetting 522's position can be connected around threaded sleeve 524, four briquetting 522 are stable extrudees threaded sleeve 524, make threaded sleeve 524 stress all around even, the vibrations that can not receive lead screw 55 feel and the swing appears, the interlude that lead screw 55 can be stable rotates inside threaded sleeve 524, make the blade on the cutting knife rest can carry out stable cutting to the part, improve the cutting efficiency of part.

In summary, the blocking device is arranged, the nut pair is arranged on the clamping grooves, a gap between the two clamping grooves is opened, no gap is left between the nut pair and the clamping grooves, other clamping grooves which are not connected to the nut pair are connected together through the buffer part, the protective backing plate is connected together under the pressure of the two clamping grooves, so that cutting chips are not easy to fall into the cavity, the cutting chips are effectively prevented from falling into a thread gap on the screw rod, the screw rod rotates in the threaded sleeve, the threaded sleeve receives vibration generated by the operation of the motor, the positions around the threaded sleeve are limited through the pressing blocks, the pressing blocks guide the vibration generated by the rotation of the screw rod to the fastener, the elastic parts are matched with the clamping sleeves to restrain the fastener, the two clamping sleeves are pulled by the non-elastic pull rope, the pressing blocks can be effectively prevented from moving, and the screw rod can stably rotate in the threaded sleeve, so that the cutting tool holder can perform stable cutting treatment on the part.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a numerical control double-end lathe, its structure includes stabilizer blade (1), organism (2), anticollision backplate (3), guard gate (4), stop device (5), cutting knife rest (6), telescopic link (7), operating panel (8), its characterized in that:

stabilizer blade (1) are inserted and are inlayed in organism (2) bottom, guard gate (4) one side links in crashproof backplate (3), the guard gate is connected in telescopic link (7) both sides, operating panel (8) are connected through electric wire and organism (2) inside electricity, cutting knife rest (6) cooperate through activity block mode with blocking device (5).

The blocking device (5) comprises a motor (51), a limiting groove (52), a nut pair (53), a protection component (54), a lead screw (55) and a cavity (56), wherein the lead screw (55) is inserted into the motor (51), the limiting groove (52) is installed at two ends of the cavity (56), the protection component (54) is buckled on the cavity (56), the nut pair (53) is matched with the lead screw (55) in a meshing mode, a cutting tool rest (6) is nested on the nut pair (53), and the cavity (56) is clamped inside the machine body (2).

2. A numerically controlled double-headed lathe according to claim 1, wherein: the protection component (54) comprises a connecting plate (541), a fixed seat (542) and a protection resistance piece (543), wherein the connecting plate (541) is arranged at the middle position inside the fixed seat (542), the fixed seat (542) is buckled on a cavity (56), the protection resistance piece (543) is arranged on the fixed seat (542) in parallel, the connecting plate (541) is buckled with the bottom of a nut pair (53), and two sides of the nut pair (53) are connected with the inside of the protection resistance piece (543).

3. A numerically controlled double-headed lathe according to claim 2, wherein: protection hinders piece (543) including protection backing plate (431), kicking block (432), draw-in groove (433), bolster (434), establish on draw-in groove (433) protection backing plate (431), draw-in groove (433) internally mounted has kicking block (432), bolster (434) one end lock joint is on draw-in groove (433), and the other end inlays admittedly at fixing base (542) inner wall, draw-in groove (433) are installed in fishplate bar (541) both sides.

4. A numerically controlled double-headed lathe according to claim 3, wherein: buffer member (434) including bullet pole (P1), upper fender (P2), backplate (P3) down, bullet pole (P1) are embedded between upper fender (P2) and backplate (P3) down, upper fender (P2) links to each other with kicking block (432), backplate (P3) are identical with fixing base (542) down.

5. A numerically controlled double-headed lathe according to claim 1, wherein: the limiting groove (52) comprises fasteners (521), a pressing block (522), a traction piece (523), a threaded sleeve (524) and a shell (525), the traction piece (523) and the fasteners (521) are connected into a whole through the shell (525), two ends of the pressing block (522) are fastened on the two fasteners (521), the pressing block (522) is connected with the threaded sleeve (524), the screw rod (55) is matched with the threaded sleeve (524) in a threaded mode, the threaded sleeve (524) is installed at the middle position inside the shell (525), and the shell (525) is fixedly embedded in the middle position of the cavity (56).

6. A numerically controlled double-headed lathe according to claim 5, wherein: the traction piece (523) comprises an elastic piece (231), a limiting chuck (232), a fixing plate (233), a non-elastic pull rope (234) and a clamping sleeve (235), wherein the elastic piece (231) is installed on two sides of the limiting chuck (232), the fixing plate (233) is clamped on the clamping sleeve (235), the non-elastic pull rope (234) is inserted and connected inside the clamping sleeve (235), and the clamping sleeve (235) is connected with a fastener (521) into a whole through a shell (525).

7. A numerically controlled double-headed lathe according to claim 6, wherein: spacing chuck (232) are including activity dish (Q1), draw buckle pole (Q2), tractive piece (Q3), baffle (Q4), baffle (Q4) are inserted and are inlayed in activity dish (Q1) both sides, draw block (Q3) and draw buckle pole (Q2) looks lock joint, draw buckle pole (Q2) one end to insert and inlay on elastic component (231), the other end is installed on activity dish (Q1), activity dish (Q1) bottom and casing (525) adopt the cooperation of activity block mode.