Efficient and compact five-axis horizontal turning plate machining center

Abstract

The invention discloses an efficient and compact type five-axis horizontal type turning plate machining center which comprises a lathe bed, a sliding seat, a stand column, an oblique insertion swing head and a workbench exchange mechanism. The sliding base slides on the lathe bed along the X axis, the stand column slides on the sliding base along the Z axis, the oblique insertion swing head slides on the stand column along the Y axis, and the main shaft rotates around the A axis and the C axis. The workbench exchange mechanism comprises a workbench, an exchange platen, a turning-up base and a turning-up base plate. The working table can be exchanged between the exchange bedplate and the turning-up base plate, the working table is positioned on the turning-up base plate through the positioning device and clamped on the turning-up base plate through the working table clamping device, and the turning-up base plate drives the working table on the turning-up base plate to be turned over to be vertical from horizontal through the turning-over device. And the substrate clamping device is used for clamping the turned-up substrate on the turned-up base. The inclined inserting type swing head is matched with the three shafts, the machining efficiency is improved, exchange of a plurality of workbenches by one machining center can be achieved, the overall production efficiency is improved, and efficient and compact five-shaft horizontal machining is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of five-axis horizontal machining centers, and in particular to a highly efficient and compact five-axis horizontal plate turning machining center. Background Art

[0002] The five-axis horizontal flap machining center is mainly used for the machining of cavities of wall panel structural parts. It is especially suitable for high-speed and efficient machining of structural parts in the aerospace field. It is the preferred equipment for manufacturing typical parts such as aircraft wing panels, wing ribs, and frames. By using the five-axis horizontal flap machining center, the large amount of high-temperature chips generated during the machining process will not accumulate in the thin-walled cavity, but can be discharged in time and smoothly, effectively solving the chip removal problem.

[0003] However, the existing machining centers have the following problems: 1. There are extreme points in the machining angle, which leads to low machining efficiency and poor surface finish of the workpiece; 2. Before machining the workpiece, positioning, clamping, flipping and other actions need to be coordinated with each other to put the workpiece in the position to be processed, but when the existing flip machining center is flipping, it is easy for errors to accumulate during the positioning, clamping and flipping process, affecting the machining accuracy of the workpiece; 3. The configuration is not compact and the equipment occupies a large area.

[0004] Therefore, the development of an efficient and compact five-axis horizontal flap machining center is of great significance to promoting the development of my country's aerospace, national defense and military industries. Summary of the invention

[0005] The present invention provides a highly efficient and compact five-axis horizontal plate turning machining center to solve the above problems.

[0006] In order to achieve the above object, the technical solution of the present invention is:

[0007] An efficient and compact five-axis horizontal plate turning machining center, comprising a bed, a slide, a column, an oblique insertion swing head, a tool magazine and a worktable exchange mechanism;

[0008] The slide can slide along the X-axis on the bed, the column can slide along the Z-axis on the slide, and the oblique insertion swing head can be lifted and lowered along the Y-axis on the column; the tool magazine and the workbench exchange mechanism are both arranged on one side of the bed;

[0009] The workbench exchange mechanism includes a workbench, an exchange table plate, a flip base and a flip substrate; the flip substrate is hinged on the flip base, a flip device is provided between the flip base and the flip substrate, a substrate clamping device is provided on the flip base, a positioning device and a workbench clamping device are provided on the flip substrate, the workbench can be exchanged between the exchange table plate and the flip substrate, the workbench is positioned on the flip substrate by the positioning device, and is clamped on the flip substrate by the workbench clamping device, the flip substrate can drive the workbench on the substrate to flip from a horizontal position to a vertical position by the flip device, and when in the vertical position, the substrate clamping device clamps the flip substrate to the flip base.

[0010] Furthermore, a switching table base is provided on a side of the flip base away from the bed, and the switching table can be slidably mounted on the switching table base;

[0011] The exchange table is provided with a sprocket drive assembly, a first guide rail, a first guide wheel and a first guide wheel mounting seat, and a drive wheel is provided on the upper side of the sprocket drive assembly;

[0012] The bottom of the workbench is provided with an installation groove, a guide protrusion and a guide plate with a guide groove. When the workbench is set on the exchange table plate, the first guide rail is set in the installation groove, and the first guide wheel abuts against the side wall of the guide protrusion, and the driving wheel is set in the guide groove of the guide plate. When the workbench is exchanged between the exchange substrate and the flip-up substrate, the exchange table moves on the exchange table base to a position corresponding to the flip-up substrate, and the driving wheel is driven by the sprocket drive assembly to move the guide plate on the workbench on the exchange substrate. The guide plate movement drives the workbench to move along the first guide wheel mounting seat and the first guide rail on the exchange table plate, approach and move to the flip-up substrate, and the sprocket drive assembly drives the driving wheel to rotate in the opposite direction to drive the workbench from the flip-up substrate to the exchange table plate.

[0013] Furthermore, a second guide wheel and a second guide wheel mounting seat are provided on the flip-up substrate, and the side wall of the guide protrusion of the workbench on the flip-up substrate abuts against the side wall of the second guide wheel. The workbench on the flip-up substrate can slide along the second guide wheel mounting seat and the second guide wheel, approaching and moving to the flip-up substrate or moving away from and moving out of the flip-up substrate.

[0014] Furthermore, the workbench clamping device includes a clamping cylinder, a clamping plate and a pad. The clamping plate and the pad are both arranged on the upper surface of the flip-up base plate. The piston end of the clamping cylinder is fixedly connected to the clamping plate. A pad is provided on the lower side of the clamping plate. Clamping plates are provided on both sides of the mounting groove of the workbench. When the workbench is installed on the flip-up base plate, the clamping plate is arranged in the mounting groove, and the clamping plate is arranged between the clamping plate and the pad.

[0015] Furthermore, the flipping device includes a flipping cylinder, a flipping piston rod, a flipping cylinder support and a piston rod support. The flipping cylinder is fixed to the flipping base through the flipping cylinder support. The flipping piston rod is hinged to the piston rod support fixed to the bottom of the flipping base. A flip plate hinge assembly is provided on the flipping base, and the flipping base is hinged to the flip plate hinge assembly. The flipping cylinder drives the flipping piston rod to rise and fall, and drives the flipping base to rotate around the flip plate hinge assembly to flip it up to a vertical position or flip it down to a horizontal position.

[0016] Furthermore, the positioning device includes a positioning cylinder and a positioning piston rod, the positioning cylinder is arranged on the flap base plate, a positioning sleeve is arranged on the lower surface of the workbench, and the positioning piston rod can extend into the positioning hole of the positioning sleeve.

[0017] Furthermore, positioning columns are provided on both sides of the flip-up base, the flip-up substrate is arranged between the two positioning columns, the substrate clamping device is arranged on the positioning columns, and the substrate clamping device includes the rotating clamp and the positioning block. When the flip-up substrate is flipped to a vertical position, the clamping wall of the rotating clamp rotates to one side of the flip-up substrate, so that the flip-up substrate is clamped between the positioning block and the clamping wall.

[0018] Furthermore, an X-axis guide rail and an X-axis rack are provided on the bed, the slide is installed on the X-axis guide rail through a first slider, a first servo motor is provided on one side of the slide, and the first servo motor drives the slide to slide along the X-axis by driving the gear to move along the X-axis rack;

[0019] The slide is provided with a Z-axis guide rail, a first lead screw and a second servo motor, the column is installed on the Z-axis guide rail through a second slider, a first nut is provided at the bottom of the column, and the second servo motor drives the first nut to move along the first lead screw to drive the column to slide along the Z-axis guide rail.

[0020] Furthermore, a Y-axis guide rail, a second lead screw and a third servo motor are provided on the column, the oblique swing head is installed on the Y-axis guide rail through a third slider, a second nut is provided on the oblique swing head, and the third servo motor drives the second nut to move along the second lead screw, thereby driving the oblique swing head to rise and fall along the Y-axis guide rail.

[0021] Furthermore, a tool magazine bracket is fixed to one side of the flip-up base, and the tool magazine is arranged on the tool magazine bracket.

[0022] The beneficial effects of the present invention are:

[0023] The present invention discloses an efficient and compact five-axis horizontal flip plate machining center, which can realize infinite machining angle by arranging an oblique swing head that maintains constant feed and cooperates with three axes to form a five-axis linkage, thereby improving machining efficiency and workpiece surface finish and ensuring machining yield rate; the worktable exchange and flipping functions can be realized by the arranged worktable exchange mechanism, and the exchange of multiple worktables by one machining center is realized, thereby improving overall production efficiency; and the combined use with the oblique swing head can greatly reduce the equipment configuration and floor space, thereby realizing efficient and compact five-axis horizontal machining; the positioning device, the substrate clamping device and the worktable clamping device are arranged to realize precise positioning and fixation of the workpiece and ensure machining accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of an efficient and compact five-axis horizontal plate turning machining center disclosed in an embodiment of the present invention Figure 1 ;

[0026] Figure 2 A schematic diagram of the structure of an efficient and compact five-axis horizontal plate turning machining center disclosed in an embodiment of the present invention Figure 2 ;

[0027] Figure 3 It is a schematic structural diagram of a worktable exchange mechanism of an efficient and compact five-axis horizontal plate turning machining center disclosed in an embodiment of the present invention;

[0028] Figure 4 It is a schematic structural diagram of a highly efficient and compact five-axis horizontal panel turning machining center turning device disclosed in an embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of a worktable of an efficient and compact five-axis horizontal plate turning machining center disclosed in an embodiment of the present invention (bottom surface);

[0030] Figure 6 It is a cross-sectional view of a clamping mechanism for a worktable of a highly efficient and compact five-axis horizontal plate turning machining center disclosed in an embodiment of the present invention;

[0031] Figure 7 It is a cross-sectional view of a highly efficient and compact five-axis horizontal flap machining center positioning device disclosed in an embodiment of the present invention.

[0032] In the figure: 1, bed; 2, slide; 3, column; 4, oblique swing head; 5, tool magazine; 6, workbench exchange mechanism; 61, workbench; 611, mounting groove; 612, guide protrusion; 613, guide plate; 614, guide groove; 615, third guide wheel; 616, clamping plate; 617, third guide wheel mounting seat; 62, exchange table; 621, sprocket drive assembly; 621a, first sprocket; 621b, second sprocket; 621c, chain; 621d, fourth servo motor; 622, first guide wheel; 623, first guide wheel mounting seat; 624, drive wheel; 625, first guide rail; 63, flip-up base; 631, positioning column; 64, flip-up base; 641, second guide wheel; 642, second guide wheel mounting seat; 65, exchange table base; 651, second guide rail; 6 52, fifth servo motor; 653, third screw rod; 654, sixth servo motor; 66, clamping cylinder; 67, clamping plate; 68, pad; 7, flipping cylinder; 8, flipping piston rod; 9, flipping cylinder support; 10, piston rod support; 11, flap hinge assembly; 111, hinge body; 112, connecting shaft; 113, flap support; 12, tool magazine bracket; 13, positioning cylinder; 14, Positioning piston rod; 15, positioning sleeve; 16, rotating clamp; 17, positioning block; 18, X-axis guide rail; 19, X-axis rack; 20, first servo motor; 21, gear; 22, Z-axis guide rail; 23, first lead screw; 24, second servo motor; 25, Y-axis guide rail; 26, second lead screw; 27, third servo motor; 28, first reducer; 29, spindle; 30, A-axis; 31, C-axis. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1-2 The figure shows an efficient and compact five-axis horizontal plate turning machining center provided by the present embodiment, comprising a bed 1, a slide 2, a column 3, an oblique insertion swing head 4, a tool magazine 5 and a workbench exchange mechanism 6;

[0035] The slide 2 can slide on the bed 1 along the X-axis, the column 3 can slide on the slide 2 along the Z-axis, the oblique insertion swing head can be lifted and lowered on the column along the Y-axis, and the oblique insertion swing head can rotate around the A-axis and around the C-axis under the drive of the torque motor; the tool magazine and the workbench exchange mechanism are both arranged on one side of the bed; the A-axis is parallel to the Z-axis, and the C-axis is parallel to the X-axis;

[0036] The workbench exchange mechanism 6 includes a workbench 61, an exchange table plate 62, a flip-up base 63 and a flip-up substrate 64; the flip-up substrate is hinged on the flip-up base, a flipping device is provided between the flip-up base and the flip-up substrate, a substrate clamping device is provided on the flip-up base, a positioning device and a workbench clamping device are provided on the flip-up substrate, the workbench 61 can be exchanged on the exchange table plate 62 and the flip-up substrate 64, the workbench is positioned on the flip-up substrate by the positioning device, and is clamped on the flip-up substrate by the workbench clamping device, the flip-up substrate can drive the workbench on the substrate to flip from a horizontal position to a vertical position by the flipping device, and when in the vertical position, the substrate clamping device clamps the flip-up substrate to the flip-up base.

[0037] The present invention discloses an efficient and compact five-axis horizontal flip plate machining center, which can realize infinite machining angle by arranging an oblique swing head that maintains constant feed and cooperates with three axes to form a five-axis linkage, thereby improving machining efficiency and workpiece surface finish and ensuring machining yield rate; the worktable exchange and flipping functions can be realized by the arranged worktable exchange mechanism, thus realizing the exchange mode of multiple worktables by one machining center and improving the overall machining production efficiency; and the combined use with the oblique swing head can greatly reduce the equipment configuration and floor space and realize efficient and compact five-axis horizontal machining; the positioning device, the substrate clamping device and the worktable clamping device can realize the precise positioning and fixation of the workpiece and ensure the machining accuracy.

[0038] In a specific embodiment, a switching table base 65 is provided on a side of the flip base 63 away from the bed 1, and the switching table 62 can be slidably mounted on the switching table base 65;

[0039] The exchange table 62 is provided with a sprocket drive assembly 621, a first guide rail 625, a first guide wheel 622 and a first guide wheel mounting seat 623, and a drive wheel 624 is provided on the upper side of the sprocket drive assembly 621;

[0040] like Figure 5As shown, the bottom of the workbench 61 is provided with a mounting groove 611, a guide protrusion 612 and a guide plate 613 with a guide groove 614 along the Z-axis direction, a third guide wheel mounting seat 617 is provided in the mounting groove, and a plurality of third guide wheels 615 are provided in the third guide wheel mounting seat 617. When the workbench is set on the exchange table, the first guide rail is set in the mounting groove, the bottom surface of the third guide wheel 615 abuts against the top surface of the first guide wheel mounting seat 623, the first guide wheel 622 abuts against the side wall of the guide protrusion 612, and the driving wheel 624 is set on the guide plate 61 3, when the workbench is exchanged between the exchange base plate and the flip-up base plate, the exchange base plate moves on the exchange base plate base to a position corresponding to the flip-up base plate, and the sprocket drive assembly drives the driving wheel to move, driving the guide plate on the workbench on the exchange base plate to move, and the guide plate movement drives the workbench to move along the first guide wheel mounting seat and the first guide rail on the exchange base plate, approaching and moving to the flip-up base plate, and the sprocket drive assembly drives the driving wheel to move in the opposite direction, driving the workbench from the flip-up base plate to the exchange base plate;

[0041] Specifically, the sprocket drive assembly 621 includes a first sprocket 621a, a second sprocket 621b, a chain 621c and a fourth servo motor 621d. The fourth servo motor 621d is arranged at the lower side of the first sprocket 621a. The first guide rail on the exchange table plate 62 is at the same height as the clamping plate 67 on the flip-up base plate 64 when the workbench is not clamped. The fourth servo motor can drive the first sprocket to rotate. The first sprocket rotates and drives the second sprocket, the chain and the driving wheel on the chain to move. The driving wheel is arranged in a guide groove 614 on the guide plate 613 at the bottom of the workbench. The driving wheel 624 drives the workbench 61 to move along the first guide rail 625 on the exchange table plate 62 through the guide plate 613 until the workbench 61 on the exchange table plate 62 is driven onto the flip-up base plate 64. At this time, the clamping plate 67 on the flip-up base plate 64 is all arranged in the mounting groove 611 on the bottom surface of the workbench, and the driving wheel is still arranged in the guide groove 614 on the guide plate 613.

[0042] like Figure 3 As shown, the exchange table base 65 is provided with a second guide rail 651 (arranged along the X-axis direction), a fifth servo motor 652, a third screw rod 653 and a sixth servo motor 654, and the exchange table 62 is provided with a fourth slider 627 and a third nut 626. The exchange table 62 is installed on the exchange table base 65 through the fourth slider 627, and the third nut is driven to move on the third screw rod 653 by the fifth servo motor 652 and the sixth servo motor 654, and the workbench 61 is driven to reciprocate on the exchange table base 65 along the second guide rail 651. In this embodiment, a reduction mechanism is provided to connect with the fifth servo motor 652 and the sixth servo motor 654.

[0043] In a specific embodiment, a second guide wheel 641 and a second guide wheel mounting seat 642 are provided on the flip-up substrate 64, and the side wall of the guide protrusion 612 of the workbench 61 provided on the flip-up substrate 64 abuts against the side wall of the second guide wheel 641. The workbench on the flip-up substrate can slide along the second guide wheel mounting seat 642 and the second guide wheel 641, approaching and moving to the flip-up substrate 64 or moving away from and moving out of the flip-up substrate 64; when the workbench moves toward the flip-up substrate, the second guide wheel 641 and the second guide wheel mounting seat 642 guide and limit the workbench, and the clamping pull plate at the bottom of the workbench on the flip-up substrate gradually slides into the mounting groove at the bottom of the workbench, which is convenient for the subsequent workbench clamping device to clamp the workbench.

[0044] In a specific embodiment, the workbench clamping device includes a clamping cylinder 66, a clamping plate 67 and a pad 68, both of which are arranged on the upper surface of the flip-up base plate 64, the piston end of the clamping cylinder is fixedly connected to the clamping plate, the lower side of the clamping plate is provided with a pad, and clamping plates 616 are provided on both sides of the mounting groove 611 of the workbench, such as Figure 6 As shown, when the workbench is installed on the flip-up base plate, the clamping plate 67 is arranged in the installation groove 611, and the clamping plate 616 is arranged between the clamping plate 67 and the pad 68, that is, the workbench and the flip-up base plate 64 are clamped and fixed to ensure the connection stability of the workbench, which is convenient for flipping up the workbench through the flipping device later, and can ensure the stability of the workpiece thereon and the processing accuracy of the workpiece.

[0045] In a specific embodiment, the flipping device includes a flipping cylinder 7, a flipping piston rod 8, a flipping cylinder support 9 and a piston rod support 10. The flipping cylinder 7 is fixed to the flipping base 63 through the flipping cylinder support 9. The flipping piston rod 8 is hinged to the piston rod support 10 fixed to the bottom of the flipping base plate 64. A flap hinge assembly 11 is provided on the flipping base. One side of the flipping base plate 64 is hinged to the flap hinge assembly 11. The flipping cylinder drives the flipping piston rod to rise and fall, and drives the flipping base plate to rotate around the flap hinge assembly 11 to flip up to a vertical position or flip down to a horizontal position.

[0046] Specifically, Figure 4 As shown, the flap hinge assembly 11 includes a hinge body 111, a connecting shaft 112 and a flap support 113. The flap support 113 is fixed on the flip base 63. The hinge body 111 is fixedly connected to the flip base plate 64. The hinge body 111 is rotatably connected to the flap support 113 through the connecting shaft 112, thereby ensuring the realization of the flipping action of the flip base plate and ensuring the smooth flipping up and down of the workpiece, thereby improving the convenience of replacing the workbench.

[0047] In a specific embodiment, the positioning device includes a positioning cylinder 13 and a positioning piston rod 14. The positioning cylinder 13 is arranged on the flip plate base plate 64. The lower surface of the workbench 61 is provided with a positioning sleeve 15. Figure 7 As shown, the positioning piston rod 14 can extend into the positioning hole of the positioning sleeve 15 to achieve positioning of the workbench; in this embodiment, two positioning devices are provided to ensure accurate positioning of the workbench, ensure the position accuracy of the workbench, and thus ensure the processing accuracy of the workpiece.

[0048] In a specific embodiment, positioning columns 631 are provided on both sides of the flip-up base 63, and the flip-up substrate 64 is arranged between the two positioning columns 631. The substrate clamping device is arranged on the positioning columns. The substrate clamping device includes the rotating clamp 16 and the positioning block 17. When the flip-up substrate 64 is flipped to a vertical position, the clamping wall of the rotating clamp 16 rotates to one side of the flip-up substrate, so that the flip-up substrate is clamped between the positioning block 17 and the clamping wall, providing a horizontal and vertical fixing force for the flip-up substrate, which can improve the stability of the flip-up substrate during processing and help ensure the position accuracy of the flip-up substrate. , reducing the position error of the workpiece to be processed on the flipped substrate, reducing error accumulation, ensuring processing accuracy and workpiece yield; the positioning columns 631 on both sides can limit the horizontal direction of the flipped substrate during the flipping process of the flipped substrate, further ensuring the position accuracy of the flipped substrate and the workpiece; in this embodiment, four substrate clamping devices are provided, and a substrate clamping device is respectively provided at the upper and lower ends of a positioning column, which clamps and fixes the flipped substrate in four directions at the same time, ensuring the force balance of the flipped substrate, that is, ensuring the position stability and position accuracy of the flipped substrate, and then ensuring the processing accuracy.

[0049] In a specific embodiment, the bed 1 is provided with an X-axis guide rail 18 and an X-axis rack 19, the slide 2 is installed on the X-axis guide rail through a first slider, a first servo motor 20 is provided on one side of the slide, a mounting frame 21 is provided on the slide 2, and a first servo motor is provided on the mounting frame, and the first servo motor drives the slide 2 to slide along the X-axis by driving the gear 21 along the X-axis rack 19; the X-axis guide rail 18 and the X-axis rack 19 provide a guide for the slide, and cooperate with the first servo motor 20 and the gear 21 to realize the movement of the slide and the oblique swing head along the X-axis, and at the same time, the X-axis guide rail 18 and the X-axis rack 19 can also limit the slide to ensure the movement accuracy of the slide and the movement and position accuracy of the oblique swing head. The X-axis adopts a gear rack transmission, which can be wirelessly expanded for the linear axis. In this embodiment, the first servo motor is connected to a first reducer 28.

[0050] The slide 2 is provided with a Z-axis guide rail 22, a first lead screw 23 and a second servo motor 24. The column 3 is mounted on the Z-axis guide rail through a second slider. A first nut is provided at the bottom of the column 3. The second servo motor 24 drives the first nut to move along the first lead screw 23, and drives the column 3 to slide along the Z-axis guide rail 22. The Z-axis guide rail 22 and the first lead screw 23 can guide the sliding of the column 3, and can also limit the position of the column. The Z-axis guide rail 22 cooperates with the second slider, the first lead screw 23 and the first nut. Under the drive of the second servo motor 24, the column slides along the direction of the Z-axis guide rail 22 on the slide 2, and cooperates with the X-axis guide rail, the X-axis rack and other components arranged in the X-axis direction to realize the movement of the column in the X-axis and Z-axis directions.

[0051] In a specific embodiment, a Y-axis guide rail 25, a second lead screw 26 and a third servo motor 27 are provided on the column 3. The oblique insertion swing head 4 is installed on the Y-axis guide rail 25 through a third slider. A second nut is provided on the oblique insertion swing head. The third servo motor drives the second nut to move along the second lead screw, driving the oblique insertion swing head to rise and fall along the Y-axis guide rail. The Y-axis guide rail 25 and the second lead screw 26 guide and limit the movement of the oblique insertion swing head, so that the oblique insertion swing head can move along the Y-axis under the action of components such as the Y-axis guide rail 25 and the second lead screw 26 arranged along the Y-axis direction. The components arranged along the Y-axis direction cooperate with the components arranged in the Y-axis direction and the components arranged in the X-axis direction to finally realize the movement of the oblique insertion swing head in the X-axis, Y-axis and Z-axis directions. Combined with the rotation of the oblique insertion swing head around the A-axis and C-axis, processing along all directions is realized to ensure processing efficiency and surface finish.

[0052] In a specific embodiment, a tool magazine bracket 12 is fixed to one side of the flip base 63, and the tool magazine 5 is arranged on the tool magazine bracket 12 to ensure the stability of the tool magazine. In this embodiment, the tool magazine is arranged between the bed and the flip base, which can facilitate the oblique insertion of the swing head spindle 29 to take out and change the tool, and facilitate the milling processing of the workpiece on the workbench.

[0053] The present invention discloses a highly efficient and compact five-axis horizontal panel turning machining center, and the specific working steps are as follows:

[0054] 1) Driven by the first servo motor, the slide and its column and oblique swing head move in the X direction along the X-axis guide rail. When the second servo motor on the slide drives the first lead screw to rotate in the Z direction, the column and swing head on it move in the Z direction along the Z-axis guide rail. Driven by the third servo motor on the column, the oblique swing head moves up and down along the Y-axis guide rail. Driven by the torque motor, the swing head can move around the A-axis and C-axis. The spindle of the oblique swing head rotates axially to process the workpiece on the vertical workbench. When the tool needs to be changed, the slide and its column and oblique swing head move to one side of the workbench, and the column and oblique swing head move to the front end of the Z direction. The tool exchange is achieved through the plug-in and pull-out action of the spindle of the oblique swing head.

[0055] 2) The worktable exchange system performs worktable exchange: after the workpiece is fixed on the worktable, the fifth servo motor on the left side of the exchange table base drives the exchange table and the worktable on it to move right to the basic Z-direction alignment position with the flip-up. The worktable is driven by the fourth servo motor on the exchange table plate, and the worktable is driven to move in the Z direction through the chain, the driving wheel and the plate guide plate, and the worktable is transported to the flip plate base plate. The positioning cylinder on the flip plate base plate extends the positioning pin and inserts it into the positioning hole of the positioning sleeve at the bottom of the worktable. Then the clamping cylinder drives the clamping pull plate to clamp the worktable. After clamping the worktable, the flip-up base plate is driven by the flipping cylinder to rotate to a vertical position around the connecting shaft of the flip plate hinge frame assembly. After the flip-up base plate surface abuts against the positioning block of the exchange positioning column, the rotating clamp clamps the flip-up base plate to complete the positioning and clamping of the worktable. When this worktable needs to be unloaded, the above operation is performed in reverse until the worktable returns to the starting position before the exchange. Under the drive of the sixth servo motor on the right side of the exchange base, the loading operation of another worktable can be repeated.

[0056] The present invention realizes the five-axis horizontal linkage processing function by setting the above-mentioned mechanism, and provides an efficient and compact five-axis horizontal flip plate machining center by setting an oblique swing head for linkage use with a vertical flip workbench. By introducing the oblique swing head, the machining efficiency will be greatly improved when the oblique swing head is used for linkage processing. Even at the corner of the cavity, the oblique swing head can maintain a constant feed, successfully avoiding the workpiece pole generated by the traditional AC double swing head when A=0°. Even the slightest angle adjustment will cause a large rotation of the C-axis, which can solve the problems of low machining efficiency and poor surface finish in linkage processing. Therefore, the oblique swing head can realize ideal linkage processing and achieve extremely high machining quality, and the comprehensive efficiency is improved by about 15%; by setting a workbench exchange mechanism, a new workbench exchange method is provided, which can realize automatic exchange, positioning and clamping of the workbench. This five-axis horizontal plate turning machining center has the advantages of high efficiency, compactness and easy expansion to form an automated production line; by setting up a worktable exchange mechanism, the worktable can be automatically exchanged between the exchange table plate and the turning base plate, so that one machining center can exchange multiple workbenches, reducing processing auxiliary time and improving the processing efficiency of the whole machine; the function of horizontal turning of the worktable is realized by setting up a turning device, and the precise positioning and fixing of the turning device are realized through the positioning and clamping devices, thereby ensuring the position accuracy and processing accuracy of the workpiece.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An efficient and compact five-axis horizontal panel turning machining center, characterized in that: It comprises a bed (1), a slide (2), a column (3), an oblique insertion swing head (4), a tool magazine (5) and a workbench exchange mechanism (6); The slide (2) can slide on the bed (1) along the X-axis, the column (3) can slide on the slide (2) along the Z-axis, the oblique insertion swing head can be raised and lowered on the column along the Y-axis, and the tool magazine and the workbench exchange mechanism are both arranged on one side of the bed; The workbench exchange mechanism (6) comprises a workbench (61), an exchange table plate (62), a tilting base (63) and a tilting substrate (64); the tilting substrate is hinged on the tilting base, a tilting device is provided between the tilting base and the tilting substrate, a substrate clamping device is provided on the tilting base, a positioning device and a workbench clamping device are provided on the tilting substrate, the workbench (61) can be exchanged on the exchange table plate (62) and the tilting substrate (64), the workbench is positioned on the tilting substrate by the positioning device, and is clamped on the tilting substrate by the workbench clamping device, the tilting substrate can drive the workbench on the substrate to flip from a horizontal position to a vertical position by the tilting device, and when in the vertical position, the substrate clamping device clamps the tilting substrate on the tilting base.

2. According to claim 1, a highly efficient and compact five-axis horizontal panel turning machining center is characterized in that: A switching table base (65) is provided on a side of the turning base (63) away from the bed (1), and the switching table (62) can be slidably mounted on the switching table base (65); The exchange platform (62) is provided with a sprocket drive assembly (621), a first guide rail (625), a first guide wheel (622) and a first guide wheel mounting seat (623); the sprocket drive assembly (621) is provided with a drive wheel (624) on its upper side; The bottom of the workbench (61) is provided with a mounting groove (611), a guide protrusion (612) and a guide plate (613) with a guide groove (614). When the workbench is set on the exchange table, the first guide rail is set in the mounting groove, the first guide wheel abuts against the side wall of the guide protrusion, and the driving wheel is set in the guide groove of the guide plate. When the workbench is exchanged between the exchange substrate and the flip-up substrate, the exchange table moves on the exchange table base to a position corresponding to the flip-up substrate, and the driving wheel is driven by the sprocket drive assembly to move the guide plate on the workbench on the exchange substrate. The guide plate movement drives the workbench to move along the first guide wheel mounting seat and the first guide rail on the exchange table, approaching and moving to the flip-up substrate, and the sprocket drive assembly drives the driving wheel to rotate in the opposite direction to drive the workbench from the flip-up substrate to the exchange table.

3. According to claim 2, a highly efficient and compact five-axis horizontal panel turning machining center is characterized in that: The flip-up base plate (64) is provided with a second guide wheel (641) and a second guide wheel mounting seat (642); the side wall of the guide protrusion (612) of the workbench (61) on the flip-up base plate (64) abuts against the side wall of the second guide wheel (641); the workbench on the flip-up base plate can slide along the second guide wheel mounting seat (642) and the second guide wheel (641) to approach and move onto the flip-up base plate (64) or move away from and move out of the flip-up base plate (64).

4. The efficient and compact five-axis horizontal panel turning machining center according to claim 2 is characterized in that: The workbench clamping device comprises a clamping cylinder (66), a clamping plate (67) and a pad (68), wherein the clamping plate and the pad are both arranged on the upper surface of the flip-up base plate (64), the piston end of the clamping cylinder is fixedly connected to the clamping plate, the pad is arranged on the lower side of the clamping plate, and clamping plates (616) are arranged on both sides of the mounting groove (611) of the workbench. When the workbench is installed on the flip-up base plate, the clamping plate (67) is arranged in the mounting groove (611), and the clamping plate (616) is arranged between the clamping plate (67) and the pad (68).

5. The efficient and compact five-axis horizontal panel turning machining center according to claim 1 is characterized in that: The flipping device comprises a flipping cylinder (7), a flipping piston rod (8), a flipping cylinder support (9) and a piston rod support (10); the flipping cylinder (7) is fixed on a flipping base (63) via the flipping cylinder support (9); the flipping piston rod (8) is hinged to the piston rod support (10) fixed to the bottom of a flipping base plate (64); a flap hinge assembly (11) is provided on the flipping base; the flipping base plate (64) is hinged to the flap hinge assembly (11); the flipping cylinder drives the flipping piston rod to rise and fall, and drives the flipping base plate to rotate around the flap hinge assembly (11) to flip up to a vertical position or flip down to a horizontal position.

6. The efficient and compact five-axis horizontal panel turning machining center according to claim 1 is characterized in that: The positioning device comprises a positioning cylinder (13) and a positioning piston rod (14); the positioning cylinder (13) is arranged on the flap base plate (64); a positioning sleeve (15) is arranged on the lower surface of the workbench (61); and the positioning piston rod (14) can extend into the positioning hole of the positioning sleeve (15).

7. The efficient and compact five-axis horizontal panel turning machining center according to claim 1 is characterized in that: Positioning columns (631) are provided on both sides of the flip-up base (63), the flip-up substrate (64) is arranged between the two positioning columns (631), and the substrate clamping device is arranged on the positioning columns. The substrate clamping device includes the rotating clamp (16) and the positioning block (17). When the flip-up substrate (64) is flipped to a vertical position, the clamping wall of the rotating clamp (16) rotates to one side of the flip-up substrate, so that the flip-up substrate is clamped between the positioning block (17) and the clamping wall.

8. The efficient and compact five-axis horizontal panel turning machining center according to claim 1 is characterized in that: The bed (1) is provided with an X-axis guide rail (18) and an X-axis rack (19); the slide (2) is mounted on the X-axis guide rail via a first slider; a first servo motor (20) is provided on one side of the slide; the first servo motor drives the slide (2) to slide along the X-axis by driving a gear (21) to move along the X-axis rack (19); The slide seat (2) is provided with a Z-axis guide rail (22), a first lead screw (23) and a second servo motor (24); the column (3) is mounted on the Z-axis guide rail via a second slider; a first nut is provided at the bottom of the column (3); the second servo motor (24) drives the first nut to move along the first lead screw (23), thereby driving the column (3) to slide along the Z-axis guide rail (22).

9. The efficient and compact five-axis horizontal panel turning machining center according to claim 1 is characterized in that: The column (3) is provided with a Y-axis guide rail (25), a second lead screw (26) and a third servo motor (27); the oblique insertion swing head (4) is mounted on the Y-axis guide rail (25) via a third slider; a second nut is provided on the oblique insertion swing head; the third servo motor drives the second nut to move along the second lead screw, thereby driving the oblique insertion swing head to rise and fall along the Y-axis guide rail.

10. The efficient and compact five-axis horizontal panel turning machining center according to claim 1, characterized in that: A tool magazine support (12) is fixed to one side of the tilting base (63), and the tool magazine (5) is arranged on the tool magazine support (12).

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