CN110774047B

CN110774047B - Horizontal five-axis machining center

Info

Publication number: CN110774047B
Application number: CN202010000204.0A
Authority: CN
Inventors: 曾超峰; 刘成华; 刘志峰; 徐暄紘; 刘海涛; 郭琴梅
Original assignee: Guangdong Original Point Intelligent Technology Co Ltd
Current assignee: Guangdong Original Point Intelligent Technology Co Ltd
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-04-21
Anticipated expiration: 2040-01-02
Also published as: CN110774047A

Abstract

The invention discloses a horizontal five-axis machining center, which comprises a machine base and a cradle supporting seat arranged on the machine base, the cradle comprises a cradle body installed on a cradle supporting seat, wherein a servo motor is arranged on the cradle supporting seat and is connected with a cradle in a driving mode, the servo motor drives the cradle body to rotate around the left direction and the right direction, an x-axis sliding mechanism is arranged on a machine base, a first machine frame is arranged on the x-axis sliding mechanism and moves left and right on the x-axis sliding mechanism, a y-axis sliding mechanism is arranged on the first machine frame, a second machine frame is arranged on the y-axis sliding mechanism and drives the second machine frame to move up and down, a z-axis sliding mechanism is arranged on the second machine frame and is provided with a cutter, the z-axis sliding mechanism drives the cutter to move back and forth, the movement track of the cutter forms a processing space, and the cradle body is arranged in the. The invention provides a horizontal five-axis machining center with high precision.

Description

Horizontal five-axis machining center

Technical Field

The invention relates to the field of machine tool machining equipment, in particular to a horizontal five-axis machining center.

Background

With the continuous development of society and the continuous progress of scientific level, people also require the requirement of processing equipment to be higher and higher while the requirement of the precision that people can reach is also higher and higher, on the one hand is the requirement on the machining precision of lathe more and more high, on the other hand, the requirement to the space that the lathe occupies develops towards more and more miniaturization.

At present, a conventional horizontal five-axis machining center generally has an x-axis, a y-axis and a z-axis so as to realize relative motion between a workpiece and a cutter in a spatial rectangular coordinate system, for example, reference 1 with publication number CN 206825066U.

The comparison document 1 adopts the above-described movement method. In the z-axis direction of the comparison document 1, the guide rail of the z-axis moves the driving table to the position of the tool along the z-axis direction for processing, the tool contacts with the workpiece for processing, the table can move along the z-axis direction, so compared with the track of the z-axis, when the tool processes the workpiece, the table has a moment around the contact position of the table and the z-axis relative to the z-axis, but because the table and the z-axis guide rail are in sliding connection, a certain gap is inevitably formed in the moving direction of the table, and the rotation of the tool inevitably generates vibration, thereby reducing the processing precision. Meanwhile, the chips generated during the machining in the comparison document 1 easily enter the z-axis rail, and once the chips generated during the machining enter the rail, the machining precision is further affected.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: at least one of the problems set forth above is solved.

The solution of the invention for solving the technical problem is as follows:

the utility model provides a horizontal five-axis machining center, includes the frame, set up cradle supporting seat on the frame, install cradle main part on the cradle supporting seat, be provided with servo motor on the cradle supporting seat, servo motor drive connects the cradle, servo motor drives the cradle main part rotates around left and right directions, be provided with x axle glide machanism on the frame, be provided with first frame on the x axle glide machanism, first frame is in the last side-to-side motion of x axle glide machanism, be provided with y axle glide machanism in the first frame, be provided with the second frame on the y axle glide machanism, y axle glide machanism drives second frame up-and-down motion, be provided with z axle glide machanism in the second frame, be equipped with the cutter on the z axle glide machanism, z axle glide machanism drives cutter seesaw, the motion trail of the cutter forms a processing space, and the cradle body is arranged in the processing space.

The Z-axis sliding mechanism is arranged on the second rack, and is different from the traditional Z-axis sliding mechanism arranged on a workpiece, so that the influence on precision caused by the fact that scraps generated during machining enter the Z-axis sliding rail mechanism can be effectively avoided.

In addition, the cradle supporting seat is fixed on the base, the cradle supporting seat is prevented from sliding, the cradle supporting seat is prevented from tilting due to the moment generated in the machining process caused by the clearance between the traditional slide fit of the cradle supporting seat and the track on the z axis, and the machining precision is reduced.

As a further improvement of the above technical solution, the y-axis sliding mechanism includes two y-axis slide rails along the vertical direction and a vertical electric lead screw along the vertical direction, the two y-axis slide rails are fixedly disposed on the first frame, the y-axis slide rails face the cradle main body, a first installation channel along the front-back direction is disposed on the first frame, the first installation channel is disposed between the two y-axis slide rails, the second frame is disposed in the first installation channel, the second frame is slidably connected to the two y-axis slide rails, the vertical electric lead screw is fixedly connected to the first frame, and the vertical electric lead screw drives the second frame to move up and down.

As the above-mentioned further improved beneficial effect, this simple structure, set up conveniently, through the setting of this first installation passageway, formed a space that can be used for setting up the second frame for the structure is compacter, save space, and first installation passageway sets up between two y axle slide rails, and when vertical electric lead screw drove second frame reciprocating motion from top to bottom, the sliding connection of second frame and y axle slide rail was more stable.

As a further improvement of the above technical solution, the second rack includes a case and a vertical slider, the vertical slider is fixedly connected to the case, the vertical slider is slidably connected to the y-axis slide rails, at least one vertical slider is disposed on each y-axis slide rail, a second installation channel along the front-back direction is disposed on the case, the z-axis sliding mechanism is disposed in the second installation channel, and the vertical electric lead screw drives the case to move up and down.

The beneficial effect as above-mentioned further improvement is that, this simple structure, convenient to set up, quick-witted case pass through vertical slider sliding connection y axle slide rail to when vertical electronic lead screw can drive quick-witted case up-and-down motion, machine case more stable in vertical direction, and set up the second installation channel along fore-and-aft direction on the machine case, z axle glide machanism installs in the second installation channel, thereby z axle glide machanism can drive the cutter seesaw in the second installation channel.

As a further improvement of the technical proposal, the z-axis sliding mechanism comprises a z-axis slide rail, a front slide block, a rear slide block, a frame, a cutter fixing bracket and a z-axis electric screw rod, the z-axis slide rail is arranged on the inner bottom surface of the second mounting channel and arranged along the front-back direction, the number of the z-axis slide rails is two, the z-axis electric screw rod is arranged between the two z-axis slide rails, the front and rear sliding blocks are connected with the z-axis sliding rails in a sliding manner, at least one front and rear sliding block is arranged on each z-axis sliding rail, each front and rear sliding block is fixedly connected with the frame, the frame is internally and fixedly connected with the cutter fixing bracket which is fixedly connected with the cutter, the z-axis electric screw rod is in driving connection with the frame, the z-axis electric screw rod drives the frame to move back and forth, and the frame is arranged in the second mounting channel.

As above-mentioned further improved beneficial effect be, this simple structure, set up conveniently, the z axle slide rail sets up in the interior bottom surface of second installation passageway, frame through front and back slider and z axle slide rail sliding connection, and the electronic lead screw of z axle sets up between two z axle slide rails to when the electronic lead screw of z axle drives the frame and slides from beginning to end, the frame is more steady, through the setting of this cutter fixed bolster, can fix the cutter.

As a further improvement of the above technical solution, two mounting grooves are formed in the inner top surface of the second mounting channel, roller guide rail blocks are fixedly arranged in the mounting grooves, two raised slide rails are arranged on the top surface of the frame, each raised slide rail extends in the front-back direction, and the raised slide rails are arranged at intervals, and are in one-to-one correspondence with the roller guide rail blocks, and are connected with the roller guide rail blocks in a sliding manner.

As above-mentioned further improved beneficial effect be, this simple structure, it is convenient to set up, through the setting of this mounting groove, can be convenient during the use to roller guide rail piece installation, through the one-to-one sliding fit of roller guide rail piece with protruding slide rail to the frame when carrying out fore-and-aft movement, the underrun of frame supports through the z axle slide rail, and the top surface of frame provides decurrent pressure through roller guide rail piece, and the fore-and-aft movement of frame is more steady, thereby the precision of processing is higher.

As a further improvement of the technical scheme, the cutter fixing support comprises a barrel body and a fixing connection, the supporting rods of the barrel body and one end of each supporting rod are fixedly connected with the frame and the other end of each supporting rod are fixedly connected with the barrel body, a spindle motor is fixedly arranged in the barrel body, a rotating part of the spindle motor is connected with a cutter sleeve, and a cutter head mounting groove arranged along the Morse taper is formed in the cutter sleeve.

The improved knife sleeve has the advantages that the structure is simple, the arrangement is convenient, the knife sleeve is internally provided with the knife head installation groove arranged along the Morse taper, so that the knife head can be conveniently installed in the knife sleeve, in actual use, the tail end of the knife head can be provided with the installation bulge matched with the knife head installation groove, and the installation bulge is arranged along the Morse taper; the barrel is fixed and is provided with the spindle motor, through the setting of the barrel, the spindle motor can be conveniently and fast fixed in multiple directions, and through the setting of the supporting rod, the barrel is more stable.

As a further improvement of the above technical solution, the two support rods are provided, the barrel is disposed at a lower left corner of the frame, the barrel is fixedly connected to the frame, two ends of one support rod are respectively connected to an upper right corner of the frame and the barrel, and two ends of the other support rod are respectively connected to a lower right corner of the frame and the barrel.

As above-mentioned further improved beneficial effect be, this simple structure, set up the convenience, the barrel sets up in the lower left corner of frame, and the barrel is close z axle slide rail more on the one hand, can the effectual focus that reduces the barrel, and on the other hand, the setting of barrel and the lower left corner in the frame, the barrel is closer to the frame to the during operation, the elastic deformation volume of the material of barrel along the fore-and-aft direction is littleer.

As the further improvement of above-mentioned technical scheme, be provided with the cavity in the frame, be provided with on the frame and communicate the chip removal mouth of cavity, the chip removal mouth set up in the below of cradle main part, the side of frame is provided with the chip removal machine, the intercommunication has been seted up to a side on the frame the opening of cavity, the chip removal machine passes the opening extends to in the cavity, the chip removal machine is used for collecting the follow the piece that the chip removal mouth got into.

The beneficial effect as the above further improvement is that when in use, the chips of the processed workpiece falling from the upper part of the chip removal port enter the cavity from the chip removal port, and the chip removal machine collects the chips.

As a further improvement of the technical scheme, the height of the chip removal port is lower than that of the upper surface of the machine base, and the height of the chip removal port is gradually reduced from the edges of the left side and the right side of the upper surface of the machine base.

The beneficial effect as above-mentioned further improvement is that this simple structure, setting are convenient, through the setting of this structure, can be more convenient realization to clastic collection.

As a further improvement of the above technical scheme, the base is provided with a tool magazine, the tool magazine comprises two upright posts and a cross beam connecting the tops of the two upright posts, the two upright posts and the cross beam form an inverted U shape, the cross beam is arranged along the left-right direction, the bottom surface of the cross beam is provided with a plurality of grooves, the grooves are linearly arranged along the left-right direction, and each groove is internally provided with an elastic buckle.

The beneficial effect as above-mentioned further improvement is that, in the in-service use, the elasticity buckle is used for buckle cooperation tool bit to, the user can set up the not unidimensional tool bit of difference and be used for different processing on a plurality of elasticity buckle, through vertical, front and back, left and right sides direction's removal cutter, makes the cutter through the tapered tool bit mounting groove cooperation tool bit of following morse, installs and removes the convenience.

As a further improvement of the above technical scheme, the x-axis sliding mechanism includes two x-axis slide rails, the two x-axis slide rails are respectively disposed along the left and right directions, the two x-axis slide rails are sequentially arranged along the front and back directions, the height of the x-axis slide rail far away from the cutter is higher than that of the x-axis slide rail close to the cutter, and the first frame is slidably matched with the two x-axis slide rails.

As above-mentioned further improved beneficial effect is, this simple structure, it is convenient to set up, two x axle slide rails set up along left right direction respectively, two x axle slide rails are arranged along the fore-and-aft direction in proper order, the x axle slide rail of keeping away from the cutter highly is higher than the x axle slide rail that is close to the cutter, two x axle slide rails of first frame sliding fit, thereby, when the cutter is adding man-hour to the work piece along the fore-and-aft direction motion, can effectual reduction at the moment of x axle slide rail department, reduce because the clearance between x axle slide rail and the first frame and make first frame lean backward and the machining error that drives in man-hour.

The invention is used for a horizontal five-axis machining center.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a first isometric view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a second isometric view of the present invention;

FIG. 4 is a rear view schematic of FIG. 2 of the present invention;

FIG. 5 is an axial schematic view of a guide rail block of the present invention;

FIG. 6 is an enlarged view of I of FIG. 4 of the present invention;

FIG. 7 is a third isometric view of the present invention;

fig. 8 is a left side view of fig. 2 of the present invention.

In the drawings: 1-machine base, 2-cradle support base, 3-cradle body, 4-servo motor, 5-first machine frame, 6-machine box, 7-vertical slide block, 8-y-axis slide rail, 9-vertical electric screw rod, 10-z-axis slide rail, 11-front and back slide block, 12-frame, 13-support rod, 14-barrel, 15-z-axis electric screw rod, 16-installation groove, 17-roller guide rail block, 171-roller, 18-raised slide rail, 19-knife sleeve, 20-chip removal port, 21-chip removal machine, 22-upright post, 23-cross beam, 24-elastic buckle, 25-x-axis slide rail, 26-left and right slide blocks and 91-inclined plane.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

The invention discloses a horizontal five-axis machining center.

Refer to fig. 1 to 8.

In the present invention, the front-back direction is the z-axis direction, the vertical direction is the y-axis direction, and the left-right direction is the x-axis direction. The conventional cradle body 3 moves in the positive direction of the z-axis and moves upward in the positive direction of the y-axis.

The top surface of the base 1 is provided with two inclined surfaces 91, the two inclined surfaces 91 are respectively arranged on the left side and the right side of the top surface of the base 1, the height of the inclined surface 91 on the left side is gradually reduced from the left side of the base 1 to the middle part, the height of the inclined surface 91 on the right side is gradually reduced from the right side of the base 1 to the middle part of the base 1, the top surface of the base 1 is provided with a chip removal port 20, and the chip removal port 20 is arranged between the two inclined ports, so that chips generated during processing can fall into the chip removal port 20 by utilizing the height difference of the two inclined surfaces 91 during; a cavity communicated with a chip removal port 20 is formed in the base 1, a chip removal machine 21 is arranged on the right side of the base 1, an opening communicated with the cavity is formed in the right side surface of the base 1, the chip removal machine 21 comprises a water tank and a conveying belt, the water tank is placed on the right side of the base 1, the conveying belt enters the cavity from the opening and extends to the position right below the chip removal port 20, and the conveying belt covers the position below the chip removal port 20, so that chips entering from the chip removal port 20 can fall onto the conveying belt.

The top surface of the machine base 1 is provided with a horizontal plane, the horizontal plane is separated from the two inclined planes 91 through a baffle, the horizontal plane is arranged at the rear sides of the two inclined planes 91, the horizontal plane is provided with two x-axis slide rails 25 arranged along the left and right directions, wherein, the height of the x-axis slide rail 25 far away from the chip removal port 20 is higher than that of the x-axis slide rail 25 close to the chip removal port 20, a first machine frame 5 is arranged above the two x-axis slide rails 25, two left and right slide blocks 26 are arranged on each x-axis slide rail 25, each left and right slide block 26 is fixedly connected with the first machine frame 5 through screws, the bottom surfaces of the left and right slide blocks 26 are provided with recesses, the recesses of the left and right slide blocks 26 are matched with the x-axis slide rails 25 in a concave-convex mode, so that the first machine frame 5 is effectively prevented from tilting along the front and back direction, and, the first frame 5 is made more stable when the x-axis slide rail 25 slides.

The machine base 1 can be provided with an x-axis electric screw rod along the x-axis direction, the first machine frame 5 is driven to slide along the left and right direction through the x-axis electric screw rod, and the x-axis electric screw rod is not shown in the figure.

Two y-axis slide rails 8 arranged in the vertical direction are arranged on the first frame 5, and the two y-axis slide rails 8 face the front side, namely the side facing the chip removal port 20 along the horizontal direction. Two vertical sliding blocks 7 are arranged on each y-axis sliding rail 8. Be provided with a first installation passageway along fore-and-aft direction on the first frame 5, this first installation passageway is established between two y axle slide rails 8, set up a quick-witted case 6 in the first installation passageway, four sliders are respectively through screw connection quick-witted case 6, quick-witted case 6 accessible vertical slider 7 is along y axle slide rail 8 reciprocating motion from top to bottom in first installation passageway, and each vertical slider 7 sets up a concave position on being close to the face of y axle slider, concave position and the unsmooth cooperation of corresponding y axle slide rail 8 on each vertical slider 7, avoid quick-witted case 6 along the heeling of left right direction.

A second mounting channel is formed in the case 6 in the front-back direction, the cross section of the second mounting channel is rectangular, and the case 6 is in a cuboid shape. Two z-axis slide rails 10 are mounted on the inner bottom surface of the second mounting channel, the two z-axis slide rails 10 extend along the front-back direction, each z-axis slide rail 10 is connected with two front-back sliders 11 in a sliding manner, the z-axis slide rails 10 are vertically arranged upwards, the bottom surface of each front-back slider 11 is provided with a groove extending along the front-back direction, a z-axis electric screw 15 is arranged between the two z-axis slide rails 10, the z-axis electric screw 15 is fixedly connected with the inner bottom surface of the second mounting channel, the groove is in concave-convex fit with the z-axis slide rails 10, a frame 12 is arranged above the front-back sliders 11, the outer contour of the frame 12 is enclosed into a cuboid, the z-axis electric screw 15 drives the frame 12 to move along the front-back direction, the frame 12 can be fixedly connected with the, a cylinder 14 is fixed at the lower left corner in the frame 12, and a support rod 13 fixedly connected with the cylinder 14 is respectively arranged at the upper right corner and the lower right corner of the frame 12. And in order to dodge the frame 12, the vertical electric lead screw 9 that sets up on the first frame 5 sets up in the right side of frame 12, vertical electric lead screw 9 drives quick-witted case 6 up-and-down motion, vertical electric lead screw 9 sets up in first installation passageway, the upper and lower two sides of first installation passageway on the first frame 5 are connected respectively to the upper and lower both ends of vertical motor lead screw, the top at first frame 5 is fixed to the motor of vertical electric lead screw 9, and the lead screw setting of vertical electric lead screw 9 is in first installation passageway, the interior bottom of first installation passageway is connected in the lead screw bottom rotation of vertical electric lead screw 9.

The top of the frame 12 is provided with two raised slide rails 18, the two raised slide rails 18 are parallel to each other, the two raised slide rails 18 are arranged along the front-back direction, that is, along the z-axis direction, the top surface of the case 6 is provided with two mounting holes penetrating through the top surface of the case 6, so that a mounting groove 16 is formed on the inner top surface of the second mounting channel, a roller guide block 17 is fixedly mounted in the mounting groove 16, a housing of the roller guide block 17 is fixedly connected with the mounting groove 16, when the frame 12 moves along the front-back direction, the roller guide block 17 limits the raised slide rails 18 above the frame 12, through the matching of the raised slide rails 18 and the roller guide block 17, the frame 12 is in sliding fit with the z-axis slide rails 10 through the front-back sliders 11, the frame 12 is limited from the upper-lower direction, when the roller block 17 is matched with the raised slide rails 18, the rollers 171 of, when the roller guide rail block 17 and the raised slide rail 18 move relatively, the roller rotates under the action of friction force; in actual use, the roller guide block 17 may be a GZD roller guide block.

Set up spindle motor in the barrel 14, the driving motor drive connects broach shell 19, driving motor can drive broach shell 19 and rotate, set up the tool bit mounting groove that sets up along morse's tapering in the broach shell 19, this tool bit mounting groove can be used to the installation tool bit, and elasticity buckle 24 on the tool magazine can be used to the dismantlement tool bit, during the use, make the tool bit insert in elasticity buckle 24 from the breach of the below of elasticity buckle 24, it is preferred, the lateral surface of each tool bit be provided with be used for with elasticity buckle 24 complex cell body, when the tool bit inserts in elasticity buckle 24, cell body and the unsmooth cooperation of elasticity buckle 24, then drive barrel 14 through z axle electric lead screw 15 and move backward, and make the tool bit break away from broach shell 19.

The structure also well avoids the adverse effect on the machine tool precision caused by the rapid movement of the whole machine due to the fact that three shafts of an x shaft, a y shaft and a z shaft of the part of the traditional horizontal five-axis machining center are directly stacked from bottom to top, and the influence on the machine tool precision caused by the direct superposition movement of the three shafts on the structure of the part of the traditional horizontal five-axis machining center can be well solved by arranging the z shaft on the second rack.

Normally, the general cylinder 14 should be centered on the frame 12 to achieve the effect of facilitating tool setting. However, when a workpiece is machined, some specific machining actions require the cylinder 14 to move along the z-axis direction, and at this time, if the cylinder 14 needs to move towards the workpiece to be machined, when the tool bit contacts the workpiece, the tool bit receives a force in a direction opposite to the workpiece to be machined, and a moment is formed between the force and the z-axis slide rail 10, so that the tool holder 19 has a tendency to tilt backwards, and therefore, it can be reasonably assumed that the cylinder 14 is arranged in a manner of being offset towards the z-axis direction, and the precision can be improved. For this reason, the following experiment was performed.

Comparative experiment 1 was: arranging a cylinder 14 at the center of the frame 12, wherein the cylinder 14 is fixedly connected with four inner corners of the frame 12 through four support rods 13, and each support rod 13 corresponds to the four inner corners of the frame 12 one by one; the rest of the component settings are the same as the scheme.

Comparative experiment 2 was: arranging a cylinder 14 in the middle of the bottom in the frame 12, wherein the cylinder 14 is fixedly connected with four inner corners of the frame 12 through four support rods 13, and each support rod 13 corresponds to the four inner corners of the frame 12 one by one; the rest of the component settings are the same as the scheme.

Comparative experiment 3 was: the barrel 14 is arranged in the middle of the left side of the frame 12, the frame 12 is fixedly connected with the barrel 14, the barrel 14 is fixedly connected with two inner angles on the right side of the frame 12 through two support rods 13, each inner angle on the right side is in one-to-one correspondence with the support rods 13, and the arrangement of other components is the same as that of the scheme.

Therefore, the difference between the comparison experiment 3, the comparison experiment 2 and the comparison experiment 1 is the position of the z-axis. Thus, the same insert was used for experiments with workpieces of the same material machined at different depths of cut.

In the

comparative experiments

3, 2 and 1, the data in the experimental tables are the linearity of the linear motion of the z-axis at different motion distances corresponding to the plane formed by the x-axis and the z-axis and the plane formed by the y-axis and the z-axis, respectively. In tables 1-4 below, x-z represents the plane formed by the z-axis between the x-axis and the z-axis, and y-z represents the plane formed by the z-axis between the y-axis and the z-axis. And the lateral direction is the distance the tool tip moves along the z-axis.

Table 1 below shows experimental data of comparative experiment 1.

Table 1:

comparative experiment 2 was conducted to obtain experimental data as shown in table 2 below.

Table 2:

table 3 below shows experimental data of comparative experiment 3.

Table 3:

table 4 below shows experimental data of the present embodiment under the same conditions as in comparative experiment 1, comparative experiment 2, and comparative experiment 3.

Table 4:

in comparison between comparative experiment 1 and comparative experiment 3, it is also confirmed that the assumption is true, and it is advantageous to reduce the distance between the cylinder 14 and the z-axis slide rail 10 to improve the accuracy.

In contrast, in comparative experiment 3, although the linearity of the linear motion of the z-axis on the plane formed by the x-axis and the z-axis was inferior to the experimental data of comparative experiment 1, comparative experiment 2, and comparative experiment 3, in comparative experiment 3, the linearity of the linear motion of the z-axis on the plane formed by the y-axis and the z-axis was close to the linearity of comparative experiment 1. To this end, it is speculated that providing the cylinder 14 with the lower left corner drawn into the frame 12 may further improve accuracy because the cylinder 14 is closer to the edge of the frame 12, and because the moment is reduced due to the shorter distance between the cylinder 14 and the frame 12, the amount of elastic deformation that can occur in the material of both the cylinder 14 and the frame 12 may be less when the cylinder 14 is subjected to the reaction force of the workpiece being machined during machining.

In the experiments of the above

comparative experiments

1, 2, 3 and the present scheme, the maximum value of the sag of the linear motion of the z axis and the linear motion of the x axis within any 500mm, and the maximum value of the sag of the linear motion of the z axis and the y axis within any 500mm are obtained through experiments.

Through tests, in a comparative experiment 1, the maximum value of the perpendicularity of the z-axis motion and the x-axis linear motion within any 500mm is 0.021; in a comparative experiment 2, the maximum value of the perpendicularity of the z-axis motion and the x-axis linear motion within any 500mm is 0.020; in comparative experiment 3, the maximum value of the perpendicularity of the z-axis motion and the x-axis linear motion within any 500mm is 0.023; in the scheme, the maximum value of the perpendicularity of the z-axis motion and the x-axis linear motion within any 500mm is 0.020.

In contrast experiment 1, the maximum value of the perpendicularity of the z-axis motion and the y-axis linear motion within any 500mm is 0.022; in a comparative experiment 2, the maximum value of the perpendicularity of the z-axis motion and the y-axis linear motion within any 500mm is 0.021; in comparative experiment 3, the maximum value of the perpendicularity of the z-axis motion and the y-axis linear motion within any 500mm is 0.022; in the scheme, the maximum value of the perpendicularity of the z-axis motion and the y-axis motion within any 500mm is 0.020.

According to the scheme, the straightness of the z-axis motion in the plane formed by the x-axis and the z-axis is optimal, and the straightness of the z-axis motion in the plane formed by the y-axis and the z-axis is optimal; meanwhile, the perpendicularity of the z-axis motion and the y-axis motion and the perpendicularity of the z-axis motion and the x-axis motion are better. Therefore, the present embodiment is more likely to have higher processing accuracy than comparative experiment 1, comparative experiment 2, and comparative experiment 3 to some extent.

The top surface of frame 1 sets up cradle supporting seat 2, this cradle supporting seat 2 includes two posts, two posts are fixed respectively on two inclined planes 91, make two posts fix respectively in the left and right sides of chip removal mouth 20, install servo motor 4 on one of them post, another post installation axis of rotation, servo motor 4 and the pivot axis of rotation set up along the direction about respectively, and the axis of rotation and servo motor 4's axis collineation setting, cradle main part 3 sets up between axis of rotation and servo motor 4, make cradle main part 3 be located chip removal mouth 20 directly over, cradle main part 3 rotates and connects the axis of rotation, and servo motor 4 drives cradle main part 3 and rotates around servo motor 4's axis. In practical use, the cradle body 3 is further provided with a rotating disc driven by the motor, the rotating axis of the rotating disc is perpendicular to the left-right direction, and the rotating axis of the rotating disc is perpendicular to the front-back direction.

The top surface of the machine base 1 is fixedly provided with a tool magazine which is arranged between the cradle supporting seat 2 and the first machine frame 5, the tool magazine comprises two upright posts 22 and a cross beam 23 which is connected with the tops of the two upright posts 22, the two upright posts 22 are respectively arranged on the edges of the left side and the right side of the top surface of the machine base 1, the upright posts 22 are fixedly connected with the machine base 1, the bottom surface of the cross beam 23 is provided with a plurality of grooves, elastic buckles 24 are arranged in the grooves, and different tool bits can be arranged in the elastic buckles 24 when in use, for example, a milling cutter, a turning tool, a drilling tool, etc., the elastic buckle 24 is generally made of elastic metal, the elastic buckle 24 has a notch, the notch faces downwards, when the cutter head is arranged on the elastic buckle 24, the cutter head is firstly arranged below the notch, so that the cutter head is pressed against the notch, an upward external force is applied to the bit to cause the bit to open the gap, thereby causing the elastic buckle 24 to buckle the bit.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.

Claims

1. The utility model provides a horizontal five-axis machining center, includes the frame, its characterized in that: the cradle comprises a cradle support seat fixed on a machine base, a cradle body installed on the cradle support seat, a servo motor is arranged on the cradle support seat, the servo motor drives the cradle body to rotate around the left and right directions, an x-axis sliding mechanism is arranged on the machine base, a first machine frame is arranged on the x-axis sliding mechanism, the first machine frame moves left and right on the x-axis sliding mechanism, a y-axis sliding mechanism is arranged on the first machine frame, a second machine frame is arranged on the y-axis sliding mechanism, the y-axis sliding mechanism drives the second machine frame to move up and down, a z-axis sliding mechanism is arranged on the second machine frame, a cutter is arranged on the z-axis sliding mechanism, the z-axis sliding mechanism drives the cutter to move back and forth, the motion track of the cutter forms a processing space, the cradle main body is arranged in the processing space, the y-axis sliding mechanism comprises two y-axis sliding rails along the vertical direction and a vertical electric lead screw along the vertical direction, the two y-axis sliding rails are fixedly arranged on the first rack, the y-axis sliding rails face the cradle main body, a first installation channel along the front-back direction is arranged on the first rack, the first installation channel is arranged between the two y-axis sliding rails, the second rack is arranged in the first installation channel, the second rack is connected with the two y-axis sliding rails in a sliding manner, the vertical electric lead screw is fixedly connected with the first rack, the vertical electric lead screw drives the second rack to move up and down, the second rack comprises a case and a vertical sliding block, the vertical sliding block is fixedly connected with the case, and the vertical sliding block is connected with the y-axis sliding rails in a sliding manner, at least one vertical sliding block is arranged on each y-axis sliding rail, a second installation channel along the front-back direction is formed in the case, a z-axis sliding mechanism is arranged in the second installation channel and drives the case to move up and down, the z-axis sliding mechanism comprises z-axis sliding rails, front and back sliding blocks, a frame, a cutter fixing support and a z-axis electric screw rod, the z-axis sliding rails are arranged on the inner bottom surface of the second installation channel, the z-axis sliding rails are arranged along the front-back direction, the z-axis sliding rails are provided with two z-axis sliding rails, the z-axis electric screw rod is arranged between the two z-axis sliding rails, the front and back sliding blocks are connected with the z-axis sliding rails in a sliding manner, each front and back sliding block is fixedly connected with the frame, and the cutter fixing support is fixedly connected in the frame, the utility model discloses a roller guide rail, including the frame, the frame is provided with two protruding slide rails, each protruding slide rail extends along the fore-and-aft direction, two protruding slide rail intervals set up, protruding slide rail with roller guide rail piece one-to-one sets up, protruding slide rail sliding connection roller guide rail piece, the electronic lead screw of z axle drives the frame seesaw, the frame set up in the second installation passageway, two mounting grooves have been seted up to the interior top surface of second installation passageway, the mounting groove internal fixation is provided with roller guide rail piece, the top surface of frame is provided with two protruding slide rails, each protruding slide rail extends along the fore-and-aft direction.

2. The horizontal five-axis machining center according to claim 1, characterized in that: the cutter fixed bolster includes barrel, fixed connection the bracing piece of barrel, the one end fixed connection of each bracing piece the frame, the other end fixed connection of each bracing piece the barrel, the barrel internal fixation is provided with spindle motor, spindle motor's rotation portion is connected with the broach shell, be provided with the tool bit mounting groove along the setting of morse's tapering in the broach shell.

3. The horizontal five-axis machining center according to claim 2, characterized in that: the support rod is provided with two, the barrel set up in the lower left corner of frame, barrel fixed connection the frame, the upper right corner of frame and barrel are connected respectively to the both ends of one of them bracing piece, the lower right corner of frame and barrel are connected respectively to the both ends of another bracing piece.

4. The horizontal five-axis machining center according to claim 1, characterized in that: be provided with the cavity in the frame, be provided with on the frame and communicate the chip removal mouth of cavity, the chip removal mouth set up in the below of cradle main part, the side of frame is provided with the chip removal machine, the intercommunication has been seted up to a side on the frame the opening of cavity, the chip removal machine passes the opening extends to in the cavity, the chip removal machine is used for collecting the follow the piece that the chip removal mouth got into.

5. The horizontal five-axis machining center according to claim 4, characterized in that: the height of the chip removal port is lower than that of the upper surface of the machine base, and the edges of the left side and the right side of the upper surface of the machine base are gradually reduced towards the height of the chip removal port.

6. The horizontal five-axis machining center according to claim 2, characterized in that: the tool magazine comprises two stand columns and a cross beam connected with the tops of the stand columns, the stand columns and the cross beam form an inverted U shape, the cross beam is arranged in the left-right direction, a plurality of grooves are formed in the bottom surface of the cross beam, the grooves are linearly arranged in the left-right direction, and each groove is internally provided with an elastic buckle.

7. The horizontal five-axis machining center according to claim 1, characterized in that: the x-axis sliding mechanism comprises two x-axis sliding rails, the x-axis sliding rails are arranged along the left direction and the right direction respectively, the x-axis sliding rails are arranged along the front direction and the rear direction in sequence, the x-axis sliding rails far away from the cutter are higher than the x-axis sliding rails close to the cutter, and the first machine frame is in sliding fit with the x-axis sliding rails.