CN217800506U - Double-spindle lifting sliding table numerical control machine tool - Google Patents

Abstract

A numerical control machine tool with double main shafts and lifting sliding tables comprises a machine body and a front sliding table arranged on the right front side of the upper surface of the machine body, wherein a front spindle box corresponding to the front sliding table is arranged on the upper surface of the machine body; a shock absorption box matched with the auxiliary groove is arranged in the auxiliary groove; the lower surface of the shock absorption box is coplanar with the lower surface of the machine body. The utility model discloses a two main shaft lift slip table digit control machine tools need not to increase the area of fuselage upper surface, alright place two main shafts and two slip tables simultaneously, improve machining efficiency, and effectively cushion the vibrations power when can vibrations to the digit control machine tool, avoid the vibrations power to influence the machining precision of work piece, guarantee the processingquality of work piece.

Description

Double-spindle lifting sliding table numerical control machine tool

Technical Field

The utility model relates to a digit control machine tool, especially a two main shaft lift slip table digit control machine tools.

Background

The numerical control machine tool is an automatic machine tool capable of processing workpieces, the sliding table is an important part on the numerical control machine tool and can be used for installing the workpieces, reciprocating motion of the workpieces is achieved, the sliding table is matched with a main shaft of the numerical control machine tool for use, cutting, drilling and other processing work is conducted on the workpieces, the traditional numerical control machine tool only has an independent sliding table and an independent main shaft matched with the sliding table, the traditional numerical control machine tool cannot process a plurality of workpieces simultaneously, only after one workpiece is processed, another workpiece can be processed, machining efficiency is limited, although machining efficiency can be improved by adding the sliding table and the main shaft, the area of the sliding table is huge when the sliding table is horizontally placed, if the two sliding tables are distributed on the upper surface of the machine body side by side, a large installation area is needed, the machine body is required to be set to be larger in size, and the numerical control machine tool with the double main shafts and the double sliding tables is huge and heavy.

Along with the quantity increase of slip table and main shaft, a quantity for realizing the motor of drive effect also can increase thereupon, and the existence of a large amount of motors then can lead to the digit control machine tool to appear the condition of vibrations, easily cause the condition of damage and easy noise production to ground when avoiding digit control machine tool and ground area of contact too big to lead to the digit control machine tool vibrations, then can set up a plurality of recesses at digit control machine tool lower surface, reduce the area of contact of digit control machine tool and ground, this kind of mode can reduce the influence that digit control machine tool vibrations brought, but can't effectively cushion the vibrations power on the digit control machine tool, and the existence of vibrations power can influence the work piece that is processing equally, the machining precision that easily leads to the work piece appears the deviation, can't guarantee processingquality.

Disclosure of Invention

The utility model aims to solve the current technical problem and provide a two main shaft lift slip table digit control machine tools, it need not to increase the area of fuselage upper surface, alright place two main shafts and two slip tables simultaneously, improve machining efficiency, and effectively cushion the vibrations power when can vibrations to the digit control machine tool, avoid the vibrations power to influence the machining precision of work piece, guarantee the processingquality of work piece.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model discloses a two main shaft lift slip table digit control machine tools, including the fuselage, locate the preceding slip table of fuselage upper surface right side front side, the fuselage upper surface is equipped with the preceding headstock corresponding with preceding slip table position, is equipped with preceding main shaft on the preceding headstock, and fuselage upper surface left and right sides is equipped with the back headstock, is equipped with the back main shaft on the back headstock, and the fuselage upper surface is equipped with the back slip table that is located back headstock right side, and the fuselage lower surface left and right sides is equipped with recess, its characterized in that: the lower surface of the machine body is provided with an auxiliary groove positioned between the left groove and the right groove; a shock absorption box matched with the auxiliary groove is arranged in the auxiliary groove; the lower surface of the damping box is coplanar with the lower surface of the machine body, and the lower surface of the damping box is provided with a box opening; a lower vibration sensing plate matched with the box opening is arranged in the box opening, and the lower surface of the lower vibration sensing plate is coplanar with the lower surface of the machine body; an upper vibration sensing plate attached to the inner wall of the upper side of the shock absorption box is arranged in the shock absorption box; an upper moving hole is formed in the center of the upper vibration sensing plate; the center of the upper surface of the lower vibration sensing plate is provided with a lower moving hole which is coaxial with the upper moving hole; the lower surface center of the lower vibration sensing plate is provided with a limiting hole communicated with the lower moving hole; a vibration sensing ball positioned between the upper vibration sensing plate and the lower vibration sensing plate is arranged in the vibration damping box; the center of the vibration sensing ball is provided with a middle moving hole which is coaxial with the lower moving hole; a fixed column is arranged in the center of the inner wall of the upper side of the shock absorption box; the lower end of the fixed column sequentially penetrates through the upper moving hole, the middle moving hole and the lower moving hole downwards and is provided with a limiting head positioned in the limiting hole, and the limiting head is attached to the bottom of the limiting hole; an inner damping device is arranged between the upper vibration sensing plate and the vibration sensing ball; and the lower vibration sensing plate is provided with an outer damping device matched with the vibration sensing ball.

The inner damping device comprises an inner spring arranged between the lower surface of the upper vibration sensing plate and the vibration sensing ball, and the inner spring is sleeved outside the fixed column.

The outer damping device comprises guide posts arranged on the left side and the right side of the upper surface of the lower vibration sensing plate; extension arms corresponding to the guide posts are arranged on the left side and the right side of the outer wall of the middle of the shock sensing ball; a guide head is arranged at the outer end of the extension arm; the guide head is provided with a guide hole coaxial with the guide post; limiting plates which are symmetrical to each other are arranged on the upper parts of the inner walls of the left side and the right side of the shock absorption box; the limiting plate is provided with an upper top hole coaxial with the guide hole; the upper end of the guide post sequentially penetrates through the guide hole and the upper top hole upwards; an upper outer spring sleeved outside the guide post is arranged between the lower surface of the limiting plate and the upper surface of the guide head; a lower outer spring sleeved outside the guide post is arranged between the upper surface of the lower vibration sensing plate and the lower surface of the guide head.

A baffle extends downwards from the outer edges of the left side and the right side of the upper vibration sensing plate, and the lower surface of the baffle is lower than that of the limiting plate; the baffle, the limiting plate and the inner wall of the damping box are enclosed to form a damping cavity; the damping cavity is internally provided with a rubber block matched with the damping cavity, and the upper end of the guide post is pressed on the rubber block.

The lower surface of the rubber block is provided with a clamping hole coaxial with the upper top hole; the bottom of the clamping hole is provided with an extrusion hole with a narrow upper part and a wide lower part; the upper end of the guide post penetrates upwards into the clamping hole, and an anti-limiting rod is arranged in the center of the end face of the upper end of the guide post; the upper end of the anti-limit rod is provided with an extrusion head positioned in the extrusion hole; the extrusion head is in a round table shape with a narrow top and a wide bottom, and the outer wall of the extrusion head is attached to the inner wall of the extrusion hole; an extrusion space is formed between the upper end surface of the extrusion head and the bottom of the extrusion hole; the diameter of the lower end of the extrusion head is smaller than or equal to the diameter of the guide post.

The left side and the right side of the upper surface of the lower vibration sensing plate are provided with first screw holes coaxial with the guide posts, and the lower ends of the guide posts are in threaded connection with the first screw holes.

A second screw hole is formed in the center of the inner wall of the upper side of the shock absorption box, and the upper end of the fixing column is screwed in the second screw hole; the center of the lower surface of the limiting head is provided with a wrench clamping hole.

The inner wall of the shock absorption box is provided with a plurality of hidden holes which are uniformly distributed; the inner wall of the auxiliary groove is provided with a plurality of third screw holes coaxial with the hidden holes; the hidden hole is communicated with the third screw hole through a through hole; a screw passes through the through hole and is in threaded connection with the third screw hole, and the head of the screw is positioned in the hidden hole and is attached to the bottom of the hidden hole.

The rear end of the rear sliding table tilts towards the rear upper part, and the front end of the rear sliding table corresponds to the position of the rear main shaft; a rotating device is arranged on the sliding plate of the rear sliding table; a rotating seat is arranged on the left side of the rotating device; the rotary seat is provided with a plurality of workpiece mounting positions which are uniformly distributed in the circumferential direction.

The rotating device is a motor box arranged on a sliding plate of the rear sliding table, a servo motor is arranged in the motor box, and a motor shaft of the servo motor is connected with the rotating base through a rotating shaft.

The utility model has the advantages that:

compared with the prior art, adopt the utility model discloses the two main shaft lift slip table digit control machine tools of structure can be with the vibrations power dispersion on the fuselage to last sense shake the board, feel shake the ball and feel down and shake on the board, then through the inner spring, go up outer spring and down outer spring form the multichannel buffering, shake the board to last sense, the vibrations power of feeling on shaking the ball and sensing the shake board down carries out effective buffering shock attenuation, thereby realize the buffering shock attenuation to the vibrations power on the fuselage, effectively reduce the influence of vibrations power to the fuselage, avoid the work piece to add the circumstances that takes place vibrations and lead to the machining precision to appear the deviation in man-hour, guarantee the processingquality of work piece, avoid the fuselage to acutely shake simultaneously and cause the circumstances of damage and noise production to ground, play the effect of preventing ground damage and fall the effect of making an uproar.

Drawings

FIG. 1 is a schematic structural view of a numerical control machine tool with a double spindle lifting slide table according to the present invention;

FIG. 2 is a cross-sectional view of the machine body of the double spindle lifting slide table numerical control machine tool of the present invention;

fig. 3 is a sectional view of a part of the machine body of the double-spindle lifting sliding table numerical control machine tool of the present invention.

Detailed Description

The invention is described in further detail below with reference to the following figures and embodiments:

referring to fig. 1 to 3, the utility model provides a double-spindle lifting sliding table numerical control machine, which comprises a machine body 1 and a front sliding table 2 arranged on the right front side of the upper surface of the machine body 1, wherein the upper surface of the machine body 1 is provided with a front spindle box 3 corresponding to the position of the front sliding table 2, a front spindle 4 is arranged on the front spindle box 3, a rear spindle box 5 is arranged on the left rear side of the upper surface of the machine body 1, a rear spindle 6 is arranged on the rear spindle box 5, a rear sliding table 7 positioned on the right side of the rear spindle box 5 is arranged on the upper surface of the machine body 1, grooves 8 are arranged on the left and right sides of the lower surface of the machine body 1, and an auxiliary groove 9 positioned between the grooves 8 on the left and right sides is arranged on the lower surface of the machine body 1; a shock absorption box 10 matched with the auxiliary groove 9 is arranged in the auxiliary groove; the lower surface of the shock absorption box 10 is coplanar with the lower surface of the machine body 1, and the lower surface of the shock absorption box 10 is provided with a box opening 11; a lower vibration sensing plate 12 matched with the box opening 11 is arranged in the box opening, and the lower surface of the lower vibration sensing plate 12 is coplanar with the lower surface of the machine body 1; an upper vibration sensing plate 13 attached to the inner wall of the upper side of the shock absorption box 10 is arranged in the shock absorption box; an upper moving hole 14 is formed in the center of the upper vibration sensing plate 13; the center of the upper surface of the lower vibration sensing plate 12 is provided with a lower moving hole 15 which is coaxial with the upper moving hole 14; the lower surface center of the lower vibration sensing plate 12 is provided with a limiting hole 16 communicated with the lower moving hole 15; a vibration sensing ball 17 positioned between the upper vibration sensing plate 13 and the lower vibration sensing plate 12 is arranged in the shock absorption box 10; the center of the vibration sensing ball 17 is provided with a middle moving hole 18 which is coaxial with the lower moving hole 15; a fixed column 19 is arranged at the center of the inner wall of the upper side of the shock absorption box 10; the lower end of the fixed column 19 downwards sequentially penetrates through the upper moving hole 14, the middle moving hole 18 and the lower moving hole 15 and is provided with a limiting head 20 positioned in the limiting hole 16, and the limiting head 20 is attached to the bottom of the limiting hole 16; an inner damping device is arranged between the upper vibration sensing plate 13 and the vibration sensing ball 17; and an external damping device matched with the vibration sensing ball 17 is arranged on the lower vibration sensing plate 12.

The inner damping device comprises an inner spring 21 arranged between the lower surface of the upper vibration sensing plate 13 and the vibration sensing ball 17, and the inner spring 21 is sleeved outside the fixed column 19.

The outer damping device comprises guide posts 22 arranged on the left side and the right side of the upper surface of the lower vibration sensing plate 12; extension arms 23 corresponding to the guide columns 22 are arranged on the left side and the right side of the outer wall of the middle part of the vibration sensing ball 17; a guide head 24 is arranged at the outer end of the extension arm 23; the guide head 24 is provided with a guide hole 25 coaxial with the guide column 22; limiting plates 26 which are symmetrical to each other are arranged on the upper parts of the inner walls of the left side and the right side of the shock absorption box 10; the limiting plate 26 is provided with an upper top hole 27 coaxial with the guide hole 25; the upper end of the guide post 22 sequentially penetrates through the guide hole 25 and the upper top hole 27 upwards; an upper outer spring 28 sleeved outside the guide post 22 is arranged between the lower surface of the limit plate 26 and the upper surface of the guide head 24; a lower outer spring 29 sleeved outside the guide post 22 is arranged between the upper surface of the lower vibration sensing plate 12 and the lower surface of the guide head 24.

A baffle 30 extends downwards from the outer edges of the left side and the right side of the upper vibration sensing plate 13, and the lower surface of the baffle 30 is lower than the lower surface of the limiting plate 26; the baffle 30, the limiting plate 26 and the inner wall of the shock absorption box 10 are enclosed to form a shock absorption cavity 31; the damping cavity 31 is internally provided with a matched rubber block 32, and the upper end of the guide post 22 is pressed against the rubber block 32.

The lower surface of the rubber block 32 is provided with a clamping hole 33 which is coaxial with the upper top hole 27; the bottom of the clamping hole 33 is provided with an extrusion hole 34 with a narrow upper part and a wide lower part; the upper end of the guide post 22 upwards penetrates into the clamping hole 33, and the center of the end face of the upper end of the guide post 22 is provided with an anti-limiting rod 35; the upper end of the anti-limiting rod 35 is provided with an extrusion head 36 positioned in the extrusion hole 34; the extrusion head 36 is in a truncated cone shape with a narrow top and a wide bottom, and the outer wall of the extrusion head 36 is attached to the inner wall of the extrusion hole 34; an extrusion gap 37 is formed between the upper end surface of the extrusion head 36 and the bottom of the extrusion hole 34; the diameter of the lower end of the extrusion head 36 is smaller than or equal to the diameter of the guide post 22.

The left side and the right side of the upper surface of the lower vibration sensing plate 12 are provided with first screw holes 38 which are coaxial with the guide posts 22, and the lower ends of the guide posts 22 are screwed in the first screw holes 38.

A second screw hole 39 is formed in the center of the inner wall of the upper side of the shock absorption box 10, and the upper end of the fixing column 19 is screwed in the second screw hole 39; the center of the lower surface of the limiting head 20 is provided with a wrench clamping hole 33.

A plurality of hidden holes 40 which are uniformly distributed are formed in the inner wall of the shock absorption box 10; the inner wall of the auxiliary groove 9 is provided with a plurality of third screw holes 41 which are coaxial with the hidden holes 40; the hidden hole 40 is communicated with the third screw hole 41 through a through hole 42; a screw 43 passes through the through hole 42 and is screwed into the third screw hole 41, and the head of the screw 43 is located in the hidden hole 40 and is attached to the bottom of the hidden hole 40.

The rear end of the rear sliding table 7 tilts towards the rear upper part, and the front end of the rear sliding table 7 corresponds to the position of the rear main shaft 6; a rotating device is arranged on the sliding plate of the rear sliding table 7; a rotary seat 44 is arranged at the left side of the rotating device; the rotating base 44 is provided with a plurality of workpiece mounting positions 45 which are uniformly distributed on the circumference.

The rotating device is a motor box 46 arranged on a sliding plate of the rear sliding table 7, a servo motor is arranged in the motor box 46, and a motor shaft of the servo motor is connected with the rotating base 44 through a rotating shaft 47.

The utility model discloses a use method as follows:

when the numerical control machine tool operates and generates vibration, vibration force can be directly transmitted to the shock absorption box 10 along the machine body 1, the upper vibration sensing plate 13 is attached to the inner wall of the upper side of the shock absorption box 10, the outer wall of the lower vibration sensing plate 12 is attached to the inner wall of the box opening 11 of the shock absorption box 10, therefore, the vibration force received by the shock absorption box 10 from the machine body 1 can be transmitted to the upper vibration sensing plate 13 and the lower vibration sensing plate 12, the inner wall of the middle moving hole 18 is attached to the outer wall of the fixed column 19, and therefore, part of the vibration force of the shock absorption box 10 can be transmitted to the vibration sensing ball 17 through the fixed column 19.

When the vibration force is transmitted to the upper vibration sensing plate 13, the upper vibration sensing plate 13 can only vibrate downwards along the track of the fixed column 19 under the limitation of the upper inner wall of the damping box 10, when the upper vibration sensing plate 13 moves downwards, the upper vibration sensing plate 13 can extrude the inner spring 21 downwards, the inner spring 21 is compressed and generates elasticity, the elasticity on the inner spring 21 not only can effectively buffer and damp the vibration force on the upper vibration sensing plate 13, but also can effectively buffer and damp the vibration force on the vibration sensing ball 17, when the inner spring 21 is compressed to a certain degree, the upper vibration sensing plate 13 can push the vibration sensing ball 17 downwards through the inner elasticity, at the moment, the vibration sensing ball 17 can drive the guide head 24 to move downwards along the track of the guide column 22 through the extension arm 23, when the guide head 24 moves downwards, the guide head 24 can compress the lower outer spring 29 downwards, the lower outer spring 29 is compressed and generates elasticity, the elasticity can finally buffer and damp the vibration sensing ball 17 through the extension arm 23, and when the vibration sensing ball 17 is buffered and the inner vibration sensing plate 21 is connected with the vibration damping force on the upper vibration sensing plate 13.

When the numerically-controlled machine tool is placed on the ground, the lower surface of the lower vibration sensing plate 12 is coplanar with the lower surface of the machine body 1, when the numerically-controlled machine tool is placed on the ground, the lower surface of the lower vibration sensing plate 12 is attached to the ground, when the lower vibration sensing plate 12 vibrates, the lower vibration sensing plate 12 can only vibrate upwards along the track of the fixed column 19 under the limitation of the ground, when the lower vibration sensing plate 12 vibrates upwards, the lower vibration sensing plate 12 compresses the lower outer spring 29 upwards to enable the lower outer spring 29 to generate elasticity, the elasticity of the lower outer spring 29 can effectively buffer and damp the vibration force on the lower vibration sensing plate 12, when the lower vibration sensing plate 12 compresses the lower outer spring 29 to a certain degree, the lower vibration sensing plate 12 compresses the upper outer spring 28 upwards through the guide head 24, as the upper outer spring 28 is compressed, the upper outer spring 28 generates elasticity in sequence, the elasticity of the guide head 24, the compressed lower outer spring 29 acts on the lower vibration sensing plate 12, and then further reduces the vibration damping effect of the lower vibration sensing plate 12 on the lower vibration sensing plate 12, no matter the lower vibration sensing plate 12 is contacted with the lower vibration sensing plate 1, the lower vibration damping ball 23, the lower vibration sensing plate 12, and the lower vibration damping ball damping effect of the lower vibration sensing plate 1 is further reduced.

When the vibration sensing ball 17 vibrates, the vibration sensing ball 17 vibrates up and down along the track of the fixed post 19, when the vibration sensing ball 17 vibrates up, the upper compression inner spring 21 and the upper outer spring 28 are compressed, and the elasticity generated by the compression of the inner spring 21 and the upper outer spring 28 can buffer and damp the vibration force on the vibration sensing ball 17, and when the vibration sensing ball 17 vibrates down, the lower outer spring 29 is compressed, and the elasticity generated by the compression of the lower outer spring 29 can buffer and damp the vibration force on the vibration sensing ball 17.

In conclusion, the utility model discloses can with the vibrations power dispersion on the fuselage to last sense shake board 13, feel shake ball 17 and feel down shake on the board 12, then through inner spring 21, go up outer spring 28 and outer spring 29 down and form the multichannel buffering, shake board 13, feel shake ball 17 and feel down and shake the vibrations power on the board 12 and effectively cushion the shock attenuation to last sense, thereby realize the buffering shock attenuation to the vibrations power on the fuselage 1, effectively reduce the influence of vibrations power to the fuselage, avoid the work piece to add the condition that takes place vibrations to lead to the machining precision to appear the deviation man-hour, guarantee the processingquality of work piece, avoid the violent vibrations of fuselage to cause the condition of damage and noise production simultaneously to ground, play the effect of preventing ground damage and the effect of making an uproar of falling.

Go up and feel and shake board 13 left and right sides outside border downwardly extending a baffle 30, baffle 30 lower surface is less than limiting plate 26 lower surface, baffle 30, limiting plate 26 and surge tank 10 inner wall enclose to close and form a cushion chamber 31, be equipped with in the cushion chamber 31 rather than assorted rubber block 32, the guide post 22 upper end is supported and is pressed on rubber block 32, when guide post 22 is along with feeling down and shake board 12 rebound, the guide post 22 upper end then can upwards extrude rubber block 32, rubber block 32 takes place to warp and produces elasticity this moment, this thigh elasticity then can act on down and feel and shake board 12 through guide post 22, further cushion the shock attenuation to the shaking force that feels down on shaking board 12.

The lower surface of the rubber block 32 is provided with a clamping hole 33 which is coaxial with the upper top hole 27, the bottom of the clamping hole 33 is provided with an extrusion hole 34 which is narrow at the top and wide at the bottom, the upper end of the guide post 22 upwards penetrates into the clamping hole 33, the center of the end face of the upper end of the guide post 22 is provided with an anti-limiting rod 35, the upper end of the anti-limiting rod 35 is provided with an extrusion head 36 which is positioned in the extrusion hole 34, the extrusion head 36 is in a round table shape which is narrow at the top and wide at the bottom, the outer wall of the extrusion head 36 is attached to the inner wall of the extrusion hole 34, an extrusion interval 37 is formed between the upper end face of the extrusion head 36 and the bottom of the extrusion hole 34, the diameter of the lower end of the extrusion head 36 is smaller than or equal to the diameter of the guide post 22, when the guide post 22 upwards moves, the guide post 22 upwards pushes the extrusion head 36 upwards through the anti-limiting rod 35, so that the outer wall of the extrusion head 36 upwards moves along the inner wall of the extrusion hole 34, the extrusion interval 37 is smaller, the outer wall of the extrusion head 36 outwards extrudes the inner wall of the extrusion hole 34, the rubber block 32 starts to outwards, the rubber block 32 expands, the damper plate 30 limits the expansion of the rubber block 32, the damper plate 32 acts on the upper vibration sensing plate 13, and the upper vibration of the upper vibration plate 13 can sense.

The left side and the right side of the upper surface of the lower vibration sensing plate 12 are provided with first screw holes 38 which are coaxial with the guide posts 22, the lower ends of the guide posts 22 are screwed in the first screw holes 38, and the lower vibration sensing plate 12 and the guide posts 22 are conveniently assembled and disassembled in the fixing mode.

10 upside inner wall centers of damper box are equipped with second screw 39, 19 upper ends of fixed columns spiro union is in second screw 39, this kind of fixed mode is convenient for the dismouting between fixed column 19 and the damper box 10, do benefit to the dismouting of other parts, and spacing head 20 lower surface centers is equipped with a spanner card hole 33, only need to block into to spanner card hole 33 with the one end card of spanner card hole 33 assorted spanner, just can easily rotate spacing head 20, the dismouting of further fixed column 19 of being convenient for.

The inner wall of surge tank 10 is equipped with a plurality of evenly distributed's hidden hole 40, the auxiliary tank 9 inner wall is equipped with a plurality ofly and hides the coaxial third screw 41 in hole 40, hide hole 40 and link up with third screw 41 through a perforation 42 mutually, a screw 43 passes perforation 42 and spiro union in third screw 41, the head of screw 43 is located hides hole 40 and laminates mutually with hiding the hole bottom of hole 40, the steadiness of surge tank 10 not only can be guaranteed to this kind of fixed mode, and the dismouting of surge tank 10 of being convenient for.

The rear end of the rear sliding table 7 tilts towards the rear upper side, the front end of the rear sliding table 7 corresponds to the position of the rear main shaft 6, a rotating device is arranged on a sliding plate of the rear sliding table 7, a rotating seat 44 is arranged on the left side of the rotating device, a plurality of workpiece mounting positions 45 which are uniformly distributed in the circumferential direction are arranged on the rotating seat 44, along with the tilting of the rear end of the rear sliding table 7 towards the rear upper side, the rear sliding table 7 does not occupy the space on the upper surface of the machine body 1 any more, but utilizes the originally unused space on the upper surface of the machine body 1, so that the area of the upper surface of the machine body 1 is not increased, two sliding tables with larger areas can be placed at the same time, in order to ensure that the mounting positions of the workpieces can meet the actual requirements, the motor shaft of the servo motor can drive the rotating seat 44 to rotate, the workpieces can be mounted on the workpiece mounting positions 45 which are uniformly distributed in the circumferential direction on the rotating seat 44, the workpieces can still be maintained at the angle meeting the actual requirements after the rear sliding table tilts, and the processing work of the workpieces can be conveniently carried out.

Claims (10)

1. The utility model provides a two main shaft lift slip table digit control machine tools, includes the fuselage, locates the preceding slip table of fuselage upper surface right side front side, the fuselage upper surface be equipped with preceding slip table position corresponding preceding headstock, be equipped with preceding main shaft on the preceding headstock, the left rear side of fuselage upper surface is equipped with back headstock, is equipped with the back main shaft on the back headstock, the fuselage upper surface is equipped with the back slip table that is located back headstock right side, the fuselage lower surface left and right sides is equipped with recess, its characterized in that: the lower surface of the machine body is provided with an auxiliary groove positioned between the left groove and the right groove; a shock absorption box matched with the auxiliary groove is arranged in the auxiliary groove; the lower surface of the damping box is coplanar with the lower surface of the machine body, and the lower surface of the damping box is provided with a box opening; a lower vibration sensing plate matched with the box opening is arranged in the box opening, and the lower surface of the lower vibration sensing plate is coplanar with the lower surface of the machine body; an upper vibration sensing plate attached to the inner wall of the upper side of the shock absorption box is arranged in the shock absorption box; an upper moving hole is formed in the center of the upper vibration sensing plate; the center of the upper surface of the lower vibration sensing plate is provided with a lower moving hole which is coaxial with the upper moving hole; the lower surface center of the lower vibration sensing plate is provided with a limiting hole communicated with the lower moving hole; a vibration sensing ball positioned between the upper vibration sensing plate and the lower vibration sensing plate is arranged in the vibration damping box; the center of the vibration sensing ball is provided with a middle moving hole which is coaxial with the lower moving hole; a fixed column is arranged in the center of the inner wall of the upper side of the shock absorption box; the lower end of the fixed column downwards sequentially penetrates through the upper moving hole, the middle moving hole and the lower moving hole and is provided with a limiting head positioned in the limiting hole, and the limiting head is attached to the bottom of the limiting hole; an inner damping device is arranged between the upper vibration sensing plate and the vibration sensing ball; and an outer damping device matched with the vibration sensing ball is arranged on the lower vibration sensing plate.

2. The numerical control machine tool with the double main shafts and the lifting sliding table as claimed in claim 1, is characterized in that: the inner damping device comprises an inner spring arranged between the lower surface of the upper vibration sensing plate and the vibration sensing ball, and the inner spring is sleeved outside the fixing column.

3. The double-spindle lifting sliding table numerical control machine tool according to claim 2, characterized in that: the outer damping device comprises guide posts arranged on the left side and the right side of the upper surface of the lower vibration sensing plate; extension arms corresponding to the guide posts are arranged on the left side and the right side of the outer wall of the middle part of the vibration sensing ball; the outer end of the extension arm is provided with a guide head; the guide head is provided with a guide hole coaxial with the guide post; limiting plates which are symmetrical to each other are arranged on the upper parts of the inner walls of the left side and the right side of the shock absorption box; the limiting plate is provided with an upper top hole coaxial with the guide hole; the upper end of the guide post sequentially penetrates through the guide hole and the upper top hole upwards; an upper outer spring sleeved outside the guide post is arranged between the lower surface of the limiting plate and the upper surface of the guide head; and a lower outer spring sleeved outside the guide column is arranged between the upper surface of the lower vibration sensing plate and the lower surface of the guide head.

4. The numerical control machine tool with the double main shafts and the lifting sliding table as claimed in claim 3, wherein: a baffle extends downwards from the outer edges of the left side and the right side of the upper vibration sensing plate, and the lower surface of the baffle is lower than that of the limiting plate; the baffle, the limiting plate and the inner wall of the damping box are enclosed to form a damping cavity; the damping cavity is internally provided with a rubber block matched with the damping cavity, and the upper end of the guide post is pressed on the rubber block.

5. The numerical control machine tool with the double main shafts and the lifting sliding table as claimed in claim 4, wherein: the lower surface of the rubber block is provided with a clamping hole coaxial with the upper top hole; the bottom of the clamping hole is provided with an extrusion hole with a narrow upper part and a wide lower part; the upper end of the guide post penetrates upwards into the clamping hole, and an anti-limiting rod is arranged in the center of the end face of the upper end of the guide post; the upper end of the anti-limiting rod is provided with an extrusion head positioned in the extrusion hole; the extrusion head is in a round table shape with a narrow top and a wide bottom, and the outer wall of the extrusion head is attached to the inner wall of the extrusion hole; an extrusion space is formed between the upper end surface of the extrusion head and the bottom of the extrusion hole; the diameter of the lower end of the extrusion head is smaller than or equal to the diameter of the guide post.

6. The numerical control machine tool with the double main shafts and the lifting sliding table as claimed in claim 1, is characterized in that: the left side and the right side of the upper surface of the lower vibration sensing plate are provided with first screw holes coaxial with the guide posts, and the lower ends of the guide posts are in threaded connection with the first screw holes.

7. The numerical control machine tool with the double main shafts and the lifting sliding table as claimed in claim 1, is characterized in that: a second screw hole is formed in the center of the inner wall of the upper side of the shock absorption box, and the upper end of the fixing column is screwed in the second screw hole; the center of the lower surface of the limiting head is provided with a wrench clamping hole.

8. The numerical control machine tool with the double main shafts and the lifting sliding table as claimed in claim 1, is characterized in that: the inner wall of the shock absorption box is provided with a plurality of hidden holes which are uniformly distributed; the inner wall of the auxiliary groove is provided with a plurality of third screw holes coaxial with the hidden holes; the hidden hole is communicated with the third screw hole through a through hole; a screw passes through the through hole and is in threaded connection with the third screw hole, and the head of the screw is positioned in the hidden hole and is attached to the bottom of the hidden hole.

9. The numerical control machine tool with the double main shafts and the lifting sliding table as claimed in claim 1, is characterized in that: the rear end of the rear sliding table tilts towards the rear upper part, and the front end of the rear sliding table corresponds to the position of the rear main shaft; a rotating device is arranged on the sliding plate of the rear sliding table; a rotating seat is arranged on the left side of the rotating device; the rotary seat is provided with a plurality of workpiece mounting positions which are uniformly distributed in the circumferential direction.

10. The numerical control machine tool with the double main shafts and the lifting sliding table as claimed in claim 9, wherein: the rotating device is a motor box arranged on a sliding plate of the rear sliding table, a servo motor is arranged in the motor box, and a motor shaft of the servo motor is connected with the rotating base through a rotating shaft.

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