WO2020200308A1 - 工件自动翻转加工的双工位龙门组合加工系统 - Google Patents

工件自动翻转加工的双工位龙门组合加工系统 Download PDF

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Publication number
WO2020200308A1
WO2020200308A1 PCT/CN2020/083220 CN2020083220W WO2020200308A1 WO 2020200308 A1 WO2020200308 A1 WO 2020200308A1 CN 2020083220 W CN2020083220 W CN 2020083220W WO 2020200308 A1 WO2020200308 A1 WO 2020200308A1
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WO
WIPO (PCT)
Prior art keywords
workpiece
fixing
fixed
swing head
plate
Prior art date
Application number
PCT/CN2020/083220
Other languages
English (en)
French (fr)
Inventor
陈虎
杜长林
唐锐
蔡春刚
郭翠娟
尹书强
李昂
宫兴林
王峰
李迎华
Original Assignee
科德数控股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 科德数控股份有限公司 filed Critical 科德数控股份有限公司
Priority to US17/600,920 priority Critical patent/US11897073B2/en
Priority to JP2021558698A priority patent/JP7239735B2/ja
Priority to KR1020217035316A priority patent/KR102585379B1/ko
Priority to EP20784136.2A priority patent/EP3943238B1/en
Priority to ES20784136T priority patent/ES2948622T3/es
Publication of WO2020200308A1 publication Critical patent/WO2020200308A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/04—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/012—Portals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q39/04—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C1/00—Milling machines not designed for particular work or special operations
    • B23C1/002—Gantry-type milling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C1/00—Milling machines not designed for particular work or special operations
    • B23C1/08—Milling machines not designed for particular work or special operations with a plurality of vertical working-spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C1/00—Milling machines not designed for particular work or special operations
    • B23C1/12—Milling machines not designed for particular work or special operations with spindle adjustable to different angles, e.g. either horizontal or vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q2039/002—Machines with twin spindles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/304536—Milling including means to infeed work to cutter
    • Y10T409/305264—Multiple work stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306048—Milling with means to advance work or product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306664—Milling including means to infeed rotary cutter toward work
    • Y10T409/306776—Axially
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306664—Milling including means to infeed rotary cutter toward work
    • Y10T409/307672—Angularly adjustable cutter head
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30784—Milling including means to adustably position cutter
    • Y10T409/307952—Linear adjustment
    • Y10T409/308288—Linear adjustment including gantry-type cutter-carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30784—Milling including means to adustably position cutter
    • Y10T409/307952—Linear adjustment
    • Y10T409/308344—Plural cutters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30868—Work support
    • Y10T409/30896—Work support with angular adjustment

Definitions

  • the invention relates to the technical field of machine tool processing, in particular to a double-station gantry combined processing system for automatic turning and processing of workpieces.
  • the gantry machine tools include gantry milling machines, gantry planers and so on.
  • the gantry machine tool mainly includes two parts: a portal frame and a bed table.
  • the portal frame is composed of a column and a top beam, and a cross beam is also arranged in the middle.
  • the beam can move up and down along the guide rails of the two columns.
  • a machining tool head or a milling head with a vertical spindle is installed on the beam.
  • the processing head or milling head can move laterally along the beam guide.
  • the existing gantry machine tool needs to remove the workpiece from the guide rail and reload the workpiece in the process of processing the workpiece.
  • the present invention provides a double-station gantry combined processing system for automatic turning and processing of workpieces to overcome the above technical problems.
  • the double-station gantry combined processing system for automatically turning workpieces in the present invention includes:
  • the first mobile gantry processing unit, the second mobile gantry processing unit, the turning platform, the first workpiece fixing table, the second workpiece fixing table, the guide rail and the working table, the turning platform is arranged on the working table, And located between the first gantry processing unit and the second gantry processing unit;
  • the first mobile gantry machining unit includes: a first beam, a first workpiece grasping structure, a first dual-drive screw transmission structure, and a first side-mounted swing head unit
  • the second mobile gantry machining unit includes: The second beam, the second workpiece grabbing structure, the second dual-drive screw transmission structure, and the second side swing head;
  • the first workpiece grasping structure is arranged on one side of the first beam opposite to the second beam, the first double screw transmission structure is arranged on the other side of the first beam, and the first The two-workpiece grabbing structure is arranged on one side of the second beam opposite to the first beam, the second double screw transmission structure is arranged on the other side of the second beam, and the first dual drive
  • the screw transmission structure drives the first side-mounted swing head to move up and down, and the second dual-drive screw transmission structure drives the second side-mounted swing head to move up and down;
  • the first workpiece grabbing structure is used to grab the workpiece on the first workpiece fixing table or the turning platform, placing the workpiece on the turning platform or the first workpiece fixing table
  • the second The workpiece grabbing structure is used to grab the workpiece on the second workpiece fixed platform or the turning platform, and place the workpiece on the turning platform or the second workpiece fixed platform, and the turning platform is arranged on the
  • the guide rail is used to complete the turning of the workpiece.
  • first workpiece grasping structure and the second workpiece grasping structure include:
  • the sliding block is fixed on the middle of the beam of the gantry machine tool, the grabbing guide rail is fixed on the bracket, the grabbing guide rail is connected with the sliding block, the hydraulic cylinder is fixed on the beam, so The hydraulic rod of the hydraulic cylinder is connected to the support, the hydraulic cylinder drives the support to move up and down along the sliding block, and the workpiece clamping machine is provided at the lower end of the support;
  • the bracket includes a vertical supporting part and a horizontal fixing part.
  • One end of the horizontal fixing part is fixedly connected with the bottom end of the vertical supporting part, and the other end is fixed to the workpiece clamping machine.
  • the horizontal fixing part is located close to the The side of the dual-drive screw transmission structure.
  • the side-mounted swing head unit includes: a swing head, a ram, a sliding saddle, a swing head guide rail, a first slider group, a second slider group, and a third slider group;
  • An accommodating groove is provided on one side of the sliding saddle, and the first, second, and third slider groups are provided on both inner side walls of the accommodating groove, and the ram is placed in the In the accommodating groove, on the surface of the ram corresponding to the two inner side walls of the accommodating groove, the swing head guide rail is provided, and the swing head guide rail is connected to the first and second slider groups. And the third sliding block group is connected, and the swing head is provided on the side of the ram opposite to the sliding saddle.
  • the ram is provided with a fixing table for fixing the swing head, and the fixing table includes: a first fixing plate, a second fixing plate, a third fixing plate, and a supporting plate;
  • the first fixing plate and the second fixing plate are parallel to each other, the first fixing plate and the second fixing plate are both perpendicular to the supporting plate, and the supporting plate is provided with a device for fixing the swing head Through holes, the third fixing plate is perpendicular to the first fixing plate, the second fixing plate and the support plate; the first fixing plate, the second fixing plate, and the third fixing plate.
  • the plate and the supporting plate are integrally formed, the third fixing plate is parallel to the ram, and the first fixing plate, the second fixing plate and the supporting plate are integrally formed with the ram.
  • the fixing table further includes: a first fixing frame, a second fixing frame, and a third fixing frame;
  • the first fixing frame and the second fixing frame are both parallel to the supporting plate and located above the supporting plate; the first fixing frame and the second fixing frame are connected to the ram, the Both the first fixing frame and the second fixing frame are provided with a shape matching the curvature of the through hole near the ram side; the third fixing frame penetrates the second fixing frame and Intersect with the supporting plate and the first fixing frame, and the third fixing frame is perpendicular to the first fixing frame, the second fixing frame and the supporting plate.
  • first drive screw transmission structure and the second drive screw transmission structure include:
  • the screw is fixed to the slide saddle through an upper support and a lower support; the first motor seat and the second motor seat are fixed on the top of the slide saddle, the first drive motor and the second drive
  • the motors are respectively fixed on the first motor seat and the second motor seat, the first driving wheel is connected to the first driving motor, and the second driving wheel is connected to the second driving motor; the first A driven wheel and the two driven wheels are both connected to the lead screw, the first timing belt is connected to the first driving wheel and the first driven wheel, and the second timing belt is connected to the second driving wheel. Wheel and the second driven wheel.
  • the included angle between the first timing belt and the second timing belt is between 60° and 180°.
  • the distance between the first driven wheel and the second driven wheel is not greater than 50 mm.
  • the invention realizes the high integration of the system, completes the continuous processing of the gantry machine tool, improves the work efficiency, and reduces the processing cost of the system at the same time.
  • Figure 1 is a schematic diagram of the structure of a dual-station gantry combined processing system for automatic turning and processing of workpieces according to the present invention
  • Figure 2 is another structural diagram of the dual-station gantry combined processing system for automatic turning and processing of workpieces according to the present invention
  • Figure 3 is a schematic structural diagram of the workpiece grasping structure of the present invention.
  • Figure 4 is a schematic structural diagram of the workpiece grasping structure of the present invention.
  • Figure 5 is a schematic diagram of the structure of the installation position of the swing head in the prior art
  • Figure 6 is a side view of the ram with a side-mounted swing head of the present invention.
  • Fig. 7 is a schematic diagram of the three-dimensional structure of the ram with a side-mounted swing head of the present invention.
  • FIG. 8 is a schematic diagram of the structure of the ram in the ram of the present invention with a side swing head;
  • FIG. 9 is a schematic diagram of the overall structure of the dual-drive screw transmission structure of the present invention.
  • Figure 10 is a schematic front view of the dual-drive screw transmission structure of the present invention.
  • Fig. 11 is an enlarged view of A in Fig. 10.
  • 201-work clamping machine 202-bracket, 202.1-transverse fixed part, 202.2-vertical support part, 203-slider, 204-grabbing rail, 205-hydraulic cylinder, 206-gantry machine tool, 207-screw, 208-screw nut, 209-drive motor, 210-gripper;
  • Fig. 1 is a schematic diagram of the structure of a double-station gantry combined processing system for automatic turning and processing of workpieces according to the present invention. As shown in Fig. 1, the system of this embodiment may include:
  • the first mobile gantry processing unit, the second mobile gantry processing unit, the turning platform, the first workpiece fixing table, the second workpiece fixing table, the guide rail and the working table, the turning platform is arranged on the working table, And located between the first gantry processing unit and the second gantry processing unit;
  • the first mobile gantry machining unit includes: a first beam, a first workpiece grasping structure, a first dual-drive screw transmission structure, and a first side-mounted swing head unit
  • the second mobile gantry machining unit includes: The second beam, the second workpiece grabbing structure, the second dual-drive screw transmission structure, and the second side swing head;
  • the first workpiece grasping structure is arranged on one side of the first beam opposite to the second beam, the first double screw transmission structure is arranged on the other side of the first beam, and the first The two-workpiece grabbing structure is arranged on one side of the second beam opposite to the first beam, the second double screw transmission structure is arranged on the other side of the second beam, and the first dual drive
  • the screw transmission structure drives the first side-mounted swing head to move up and down, and the second dual-drive screw transmission structure drives the second side-mounted swing head to move up and down;
  • the first workpiece grabbing structure is used to grab the workpiece on the first workpiece fixing table or the turning platform, placing the workpiece on the turning platform or the first workpiece fixing table
  • the second The workpiece grabbing structure is used to grab the workpiece on the second workpiece fixed platform or the turning platform, and place the workpiece on the turning platform or the second workpiece fixed platform, and the turning platform is arranged on the
  • the guide rail is used to complete the turning of the workpiece.
  • the workpiece is taken out from the first worktable through the first workpiece gripping structure, and the first mobile gantry drives the workpiece to move to the flap platform.
  • the first workpiece gripping structure places the workpiece on the turning platform.
  • the turning platform completes the turning of the workpiece.
  • the flap platform is fixed on the workbench, and may be a flap structure in the prior art, which is not limited in this embodiment.
  • the second movable gantry is moved to the turning platform to take the turned workpiece away through the second workpiece grasping structure, and move to the second workbench. Finish the processing of the other side of the workpiece on the second worktable.
  • the first mobile gantry processing unit and the second mobile processing unit can also independently process the workpiece at the same time. Realize the continuous processing of the workpiece. It saves the time for unloading and installing the workpiece from the guide rail, and improves the work efficiency.
  • the side view of the system is shown in Figure 2. Other structures of the machine tool are based on the prior art, and will not be repeated here.
  • first workpiece grasping structure and the second workpiece grasping structure include:
  • the sliding block is fixed on the middle of the beam of the gantry machine tool, the grabbing guide rail is fixed on the bracket, the grabbing guide rail is connected with the sliding block, the hydraulic cylinder is fixed on the beam, so The hydraulic rod of the hydraulic cylinder is connected to the support, the hydraulic cylinder drives the support to move up and down along the sliding block, and the workpiece clamping machine is provided at the lower end of the support;
  • the bracket includes a vertical supporting part and a horizontal fixing part.
  • One end of the horizontal fixing part is fixedly connected with the bottom end of the vertical supporting part, and the other end is fixed to the workpiece clamping machine.
  • the horizontal fixing part is located close to the The side of the dual-drive screw transmission structure.
  • the workpiece clamping machine of this embodiment includes pneumatic fingers and clamping jaws, and the clamping jaws are mounted on the pneumatic fingers.
  • the clamping jaws are opened and closed under the drive of pneumatic fingers to realize the clamping of the workpiece.
  • there are 4 sliding blocks in total which are respectively fixed at four positions, up, down, left, and right in the middle of the beam of the gantry machine tool.
  • the drive motor of the gantry machine tool drives the gantry frame to the position above the workpiece through the lead screw and the lead screw nut.
  • the support is driven by the hydraulic cylinder to lower the height to clamp the workpiece at the lower end of the support
  • the machine is lowered to the position of the workpiece, and the workpiece clamping machine uses the pneumatic device to open the clamping jaws to clamp the workpiece, and then the support is driven by the hydraulic cylinder to drive the workpiece clamping machine to lift the workpiece, and the portal frame transports the workpiece to the target position.
  • the hydraulic cylinder The drive bracket is lowered to the target position, and the workpiece clamping machine releases the workpiece to complete the transportation.
  • the workpiece handling device can be driven by the beam of the gantry machine tool to carry the workpiece, without the need to transport the workpiece out of the machine tool, which improves work efficiency; the handling process is completed by the machine tool without a separate handling mechanism, which saves labor costs.
  • a workpiece handling device is provided on the middle of the beam of the gantry machine tool.
  • the workpiece handling device includes a workpiece clamping machine, a bracket, a sliding block, a guide rail and a hydraulic cylinder.
  • the hydraulic cylinder is fixed on the middle of the beam of the gantry machine tool, and the hydraulic rod of the hydraulic cylinder Connected with the bracket, the slide block is fixed on the beam, the guide rail is fixed on both sides of the bracket vertically, the slide block is connected with the guide rail, and the hydraulic cylinder can drive the bracket to move the bracket up and down along the guide rail on the slide block.
  • the lower end of the bracket has a workpiece clamping After the workpiece is clamped by the workpiece clamping machine, it can move with the beam of the gantry machine tool to carry the workpiece, which reduces the workpiece transportation time and improves the work efficiency.
  • the side-mounted swing head includes: a swing head, a ram, a sliding saddle, a swing head guide rail, a first slider, a second slider, and a third slider;
  • the swing head rail is fixed on one side of the ram, and the swing head is fixed on the other side of the ram; one end of the first slider, the second slider and the third slider is on the rail Sliding upward, the other ends of the first, second and third sliding blocks are fixed on the same side of the saddle at equal intervals.
  • the swing head of the existing gantry machine tool is installed on the lower end surface of the ram, and the mounting surface of the swing head is at a greater distance from the pair of sliders on the saddle.
  • the deformation is large.
  • the structure of the swing head and the ram of the present invention is shown in Figures 6 and 7.
  • the swing head is set on the fixed platform at the front end of the ram, and the guide rail is fixed at the rear end of the ram opposite to the fixed platform.
  • the second slide block and the third slide block are fixed to the saddle, and the first slide block, the second slide block and the third slide block slide on the guide rail; as shown in Figure 8, the fixed table and the ram are integrally formed, and the fixed table includes the first A fixed plate, a second fixed plate, a third fixed plate, and a supporting plate are formed.
  • the first and second fixed plates have the same shape and size, and they are arranged parallel to each other and are perpendicular to the supporting plate.
  • the supporting plate is provided with The through hole for fixing the swing head;
  • the third fixing plate is perpendicular to the first fixing plate, the second fixing plate and the supporting plate, the third fixing plate is parallel to the side of the ram fixing and fixing table, the first fixing plate and the second fixing plate ,
  • the third fixed plate and the supporting plate are integrally formed;
  • the fixed table has a structure composed of multiple fixed plates to improve the rigidity of the fixed table, and can support the swing head more stably, so that the swing head is not easy to shake when working.
  • the ram is provided with a fixing table for fixing the swing head, and the fixing table includes: a first fixing plate, a second fixing plate, a third fixing plate, and a supporting plate;
  • the first fixing plate and the second fixing plate are parallel to each other, the first fixing plate and the second fixing plate are both perpendicular to the supporting plate, and the supporting plate is provided with a device for fixing the swing head Through holes, the third fixing plate is perpendicular to the first fixing plate, the second fixing plate and the support plate; the first fixing plate, the second fixing plate, and the third fixing plate.
  • the plate and the supporting plate are integrally formed, the third fixing plate is parallel to the ram, and the first fixing plate, the second fixing plate and the supporting plate are integrally formed with the ram.
  • the fixing table further includes: a first fixing frame, a second fixing frame, and a third fixing frame;
  • the first fixing frame and the second fixing frame are both parallel to the supporting plate and located above the supporting plate; the first fixing frame and the second fixing frame are connected to the ram, the Both the first fixing frame and the second fixing frame are provided with a shape matching the curvature of the through hole near the ram side; the third fixing frame penetrates the second fixing frame and Intersect with the supporting plate and the first fixing frame, and the third fixing frame is perpendicular to the first fixing frame, the second fixing frame and the supporting plate.
  • the first fixing frame and the second fixing frame are of the same shape and size.
  • the first fixing frame and the second fixing frame are rectangular and one side is an inwardly concave arc, and the arc of the arc and the through hole of the support plate are close to the ram
  • the curvature of one side matches, the first fixing frame and the second fixing frame are parallel to the supporting plate and located above the supporting plate, the second fixing frame is located between the supporting plate and the first supporting plate;
  • the third fixing frame is rectangular , Its width is equal to the distance between the through hole of the supporting plate and the ram, the third fixing frame is perpendicular to the first fixing frame, the second fixing frame and the supporting plate, and the third fixing frame passes through the second fixing frame and the supporting plate and the first fixing frame.
  • a fixing frame intersects, the first fixing frame, the second fixing frame and the third fixing frame are all integrally formed with the fixing table; the first fixing frame, the second fixing frame and the third fixing frame further stabilize the swing head and strengthen the pendulum The stability of the head increases the rigidity of the overall structure and reduces the deformation of the ram.
  • the support plate of the fixed platform is the same height as the third sliding block, and the height is the height of the third sliding block when the saddle is at the top of the guide rail.
  • This height is the height of the fixed swing head of the fixed platform, which makes the installation of the swing head.
  • the distance between the surface and the third sliding block on the saddle is small, so that the deformation of the ram during the working process is small, and the working efficiency is improved.
  • the part of the ram located below the fixed platform is designed as a wedge-shaped structure with a gradually decreasing thickness a downwards, which reserves enough working space for the swing head.
  • the third sliding block When the support plate and the sliding saddle are at the top of the guide rail, the third sliding block has the same height, and the third sliding block is located below the first and second sliding blocks.
  • the thickness of the ram below the support plate gradually decreases downward.
  • first drive screw transmission structure and the second drive screw transmission structure include:
  • the screw is fixed to the slide saddle through an upper support and a lower support; the first motor seat and the second motor seat are fixed on the top of the slide saddle, the first drive motor and the second drive
  • the motors are respectively fixed on the first motor seat and the second motor seat, the first driving wheel is connected to the first driving motor, and the second driving wheel is connected to the second driving motor; the first A driven wheel and the two driven wheels are both connected to the lead screw, the first timing belt is connected to the first driving wheel and the first driven wheel, and the second timing belt is connected to the second driving wheel. Wheel and the second driven wheel.
  • the first motor base and the second motor base are two hollow steel cages of unequal height, and the upper surfaces of the two hollow steel cages are respectively fixed with the first drive motor and the second drive motor.
  • the first motor seat and the second motor seat have no protruding edges except for the side corresponding to the lead screw on the upper surface, and the other sides are provided with protruding edges extending to opposite sides.
  • the two ends of the screw are fixed to the upper support and the lower support respectively through bearings, and the upper support, the lower support and the sliding saddle are integrally formed;
  • the first motor seat and the second motor seat Two hollow steel cages with different heights, the first motor base is higher than the second motor base, the first drive motor is fixed to the first motor base, the second drive motor is fixed to the second motor base; the first motor base and A through hole is reserved on the top surface of the second motor seat to allow the motor shafts of the first drive motor and the second drive motor to pass through.
  • the first motor seat and the second motor seat are fixed to the sliding saddle by bolts;
  • the first driving wheel is connected to the first driving motor, the first driven wheel is connected to the top of the screw, the second driving wheel is connected to the second driving motor, the second driven wheel is connected to the top of the screw, and the first driven wheel is arranged at Above the second driven wheel, the first driving wheel and the first driven wheel are on the same horizontal plane, the second driving wheel and the second driven wheel are on the same horizontal plane; the first timing belt is connected with the first driving wheel and the first driven wheel, and the second The timing belt is connected to the second driving wheel and the second driven wheel.
  • the first driven wheel and the second driven wheel are both connected to the lead screw through the expansion sleeve.
  • the expansion and tightening action of the expansion sleeve makes the first driven wheel and the second driven wheel It is firmly connected with the lead screw and will not move up and down and rotation along the lead screw; when the first driving motor and the second driving motor are started, the first driving wheel and the second driving wheel drive the first and second timing belts respectively , The first synchronous belt and the second synchronous belt respectively drive the first driven wheel and the second driven wheel to operate, thereby realizing that the first driven wheel and the second driven wheel drive the screw to operate.
  • the design of a single screw rod reduces the space occupied by the driving device of the machine tool and saves costs.
  • the hollow steel cage design of the motor seat is beneficial to the first timing belt, the second timing belt, the first driving wheel and the first timing belt. 2. Overhaul and maintenance of the driving wheel.
  • the first motor seat and the second motor seat have the function of supporting the first driving motor and the second driving motor respectively.
  • the first driving motor and the second driving motor can be firmly seated on the first motor seat And the second motor seat, so that each side of the first motor seat and the second motor seat are provided with relatively variable and extended protruding edges, which improves the rigidity and support stability of the first motor seat and the second motor seat, and prevents the The first driving motor and the second driving motor vibrate violently during work, reducing work efficiency.
  • the included angle between the first timing belt and the second timing belt is between 60° and 180°.
  • the included angle between the first timing belt and the second timing belt is between 60° and 180°. This angle is more conducive for the first drive motor and the second drive motor to drive the lead screw to work, reduce the combined force of the pre-tightening forces of the two belts, thereby reducing the bearing force and increasing the service life of the equipment.
  • the distance between the first driven wheel and the second driven wheel is not greater than 50 mm.
  • the distance between the first driven wheel and the second driven wheel should not exceed 50 mm.

Abstract

一种工件自动翻转加工的双工位龙门组合加工系统，包括：第一移动式龙门加工单元（101）、第二移动式龙门加工单元（102）、翻板平台（103）、第一工件固定台、第二工件固定台、导轨，所述翻板平台位于所述第一龙门加工单元和所述第二龙门加工单元之间。实现了系统的高度集成，完成了龙门机床的连续加工，提高了工作效率，同时降低了系统的加工成本。

Description

工件自动翻转加工的双工位龙门组合加工系统 技术领域
本发明涉及机床加工技术领域，尤其涉及一种工件自动翻转加工的双工位龙门组合加工系统。
背景技术
龙门机床有龙门铣床、龙门刨床等。龙门机床主要包括门式框架和床身工作台两部分。门式框架由立柱和顶梁构成，中间还设置有横梁。横梁可沿两立柱导轨作升降运动。在横梁上安装有垂直主轴的加工刀头或者铣头。该加工刀头或者铣头可沿横梁导轨作横向运动。
现有的龙门机床在加工工件的过程中需要对工件从导轨上将工件取下，重新上料的处理。
发明内容
本发明提供一种工件自动翻转加工的双工位龙门组合加工系统，以克服上述技术问题。
本发明工件自动翻转加工的双工位龙门组合加工系统，包括：
第一移动式龙门加工单元、第二移动式龙门加工单元、翻板平台、第一工件固定台、第二工件固定台、导轨和工作台，所述翻板平台设置于所述工作台上，且位于所述第一龙门加工单元和所述第二龙门加工单元之间；
所述第一移动式龙门加工单元包括：第一横梁、第一工件抓取结构、第一双驱动丝杠传动结构、第一侧置摆头单元，所述第二移动式龙门加工单元包括：第二横梁、第二工件抓取结构、第二双驱动丝杠传动结构、第二侧置摆头；
所述第一工件抓取结构设置于所述第一横梁相对于所述第二横梁的一侧，所述第一双丝杠传动结构设置于所述第一横梁的另一侧，所述第二工件抓取结构设置于所述第二横梁相对于所述第一横梁的一侧，所述第二双丝杠传动结构设置于所述第二横梁的另一侧，所述第一双驱动丝杠传动结构驱动所述第一侧置摆头上下运动，所述第二双驱动丝杠传动结构驱动所述第二侧置摆头上下运动；
所述第一工件抓取结构用于抓取所述第一工件固定台或者翻板平台上的 工件，将所述工件放置于所述翻板平台或者第一工件固定台上，所述第二工件抓取结构用于抓取所述第二工件固定台或者翻板平台上的工件，将所述工件放置于所述翻板平台或者第二工件固定台上，所述翻板平台设置于所述导轨上，用于完成所述工件的翻转。
进一步地，第一工件抓取结构、第二工件抓取结构包括：
工件夹紧机、支架、滑块、抓取导轨、液压缸和龙门机床；
所述滑块固定在所述龙门机床的横梁中部，所述支架上固定有所述抓取导轨，所述抓取导轨与所述滑块相连，所述液压缸固定在所述横梁上，所述液压缸的液压杆与所述支架连接，所述液压缸驱动所述支架沿所述滑块上下运动，所述支架下端设有所述工件夹紧机；
所述支架包括竖向支撑部和横向固定部，所述横向固定部一端与所述竖向支撑部的底端固定连接，另一端固定所述工件夹紧机，所述横向固定部位于靠近所述双驱动丝杠传动结构的一侧。
进一步地，所述侧置摆头单元包括：摆头、滑枕、滑鞍、摆头导轨、第一滑块组、第二滑块组及第三滑块组；
所述滑鞍一侧设置有容纳槽，所述容纳槽的两内侧壁上均设置有所述第一滑块组、第二滑块组及第三滑块组，所述滑枕置于所述容纳槽中，所述滑枕上与所述容纳槽的两内侧壁对应的面上均设有所述摆头导轨，所述摆头导轨与所述第一滑块组、第二滑块组及第三滑块组连接，所述滑枕上与所述滑鞍相对的一侧设有所述摆头。
进一步地，所述滑枕设置有固定所述摆头的固定台，所述固定台包括：第一固定板、第二固定板、第三固定板及支撑板；
所述第一固定板与所述第二固定板相互平行，所述第一固定板与所述第二固定板均垂直于所述支撑板，所述支撑板设置有用于固定所述摆头的通孔，所述第三固定板与所述第一固定板、所述第二固定板及所述支撑板均垂直；所述第一固定板、所述第二固定板、所述第三固定板及所述支撑板一体成型，所述第三固定板与所述滑枕平行，所述第一固定板、所述第二固定板及所述支撑板与所述滑枕一体成型。
进一步地，所述固定台还包括：第一固定架、第二固定架及第三固定架；
所述第一固定架及所述第二固定架均与所述支撑板平行并位于所述支撑 板上方；所述第一固定架及所述第二固定架与所述滑枕连接，所述第一固定架及所述第二固定架朝外一边均设置有与所述通孔靠近所述滑枕侧的弧度匹配的形状；所述第三固定架贯穿于所述第第二固定架并与所述支撑板及所述第一固定架相交，所述第三固定架与所述第一固定架、所述第二固定架及所述支撑板均垂直。
进一步地，所述第一驱动丝杠传动结构、第二驱动丝杠传动结构包括：
滑鞍、第一驱动电机、第二驱动电机、第一电机座、第二电机座、第一同步带、第二同步带、丝杠、第一主动轮、第二主动轮、第一从动轮及第二从动轮；
所述丝杠通过上支座与下支座固定于所述滑鞍；所述第一电机座及第二电机座固定于所述滑鞍顶部，所述第一驱动电机及所述第二驱动电机分别固定于所述第一电机座及第二电机座上，所述第一主动轮与所述第一驱动电机相连，所述第二主动轮与所述第二驱动电机相连；所述第一从动轮与所述二从动轮均与所述丝杠连接，所述第一同步带连接所述第一主动轮及所述第一从动轮，所述第二同步带连接所述第二主动轮及所述第二从动轮。
进一步地，所述第一同步带与第二同步带夹角为60°～180°之间。
进一步地，所述第一从动轮与所述第二从动轮间距不大于50mm。
本发明实现了系统的高度集成，完成了龙门机床的连续加工，提高了工作效率，同时降低了系统的加工成本。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明工件自动翻转加工的双工位龙门组合加工系统结构示意图；
图2为本发明工件自动翻转加工的双工位龙门组合加工系统另一结构示意图；
图3为本发明工件抓取结构的结构示意图；
图4为本发明工件抓取结构的结构示意图；
图5为现有技术中摆头的安装位置结构示意图；
图6为本发明侧置摆头的滑枕侧视图；
图7为本发明侧置摆头的滑枕立体结构示意图；
图8为本发明侧置摆头的滑枕中滑枕结构示意图；
图9为本发明双驱动丝杠传动结构的整体结构示意图；
图10为本发明双驱动丝杠传动结构的正面结构示意图；
图11为图10中A处的放大图。
附图标号说明：
101-第一移动式龙门加工单元、102-第二移动式龙门加工单元、103-翻板平台、104-侧置摆头、105-滑枕、106-Z轴的双驱动丝杠传动结构、107-滑鞍、108-工件抓取结构；
201-工件夹紧机、202-支架、202.1-横向固定部、202.2-竖向支撑部、203-滑块、204-抓取导轨、205-液压缸、206-龙门机床、207-丝杠、208-丝杠螺母、209-驱动电机、210-夹爪；
301-摆头、302-滑枕、303-摆头导轨、304.1-第一滑块、304.2-第二滑块、304.3-第三滑块、305-滑鞍、306-斜切面、307.1-第一固定板、307.2-第二固定板、307.3-第三固定板、308-支撑板、309.1-第一固定架、309.2-第二固定架、309.3-第三固定架；
401-滑鞍、402-丝杠、404-下支、405-上支座、408.1-第一同步、408.2-第二同步带、409.1-第一主动轮、409.2-第二主动轮、410.1-第一从动轮、410.2-第二从动轮、411.1-第一驱动电机、411.2-第二驱动电机、412.1-第一驱动电机、412.2-第二驱动电机、413-突沿。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1为本发明工件自动翻转加工的双工位龙门组合加工系统结构示意图，如图1所示，本实施例的系统可以包括：
第一移动式龙门加工单元、第二移动式龙门加工单元、翻板平台、第一 工件固定台、第二工件固定台、导轨和工作台，所述翻板平台设置于所述工作台上，且位于所述第一龙门加工单元和所述第二龙门加工单元之间；
所述第一移动式龙门加工单元包括：第一横梁、第一工件抓取结构、第一双驱动丝杠传动结构、第一侧置摆头单元，所述第二移动式龙门加工单元包括：第二横梁、第二工件抓取结构、第二双驱动丝杠传动结构、第二侧置摆头；
所述第一工件抓取结构设置于所述第一横梁相对于所述第二横梁的一侧，所述第一双丝杠传动结构设置于所述第一横梁的另一侧，所述第二工件抓取结构设置于所述第二横梁相对于所述第一横梁的一侧，所述第二双丝杠传动结构设置于所述第二横梁的另一侧，所述第一双驱动丝杠传动结构驱动所述第一侧置摆头上下运动，所述第二双驱动丝杠传动结构驱动所述第二侧置摆头上下运动；
所述第一工件抓取结构用于抓取所述第一工件固定台或者翻板平台上的工件，将所述工件放置于所述翻板平台或者第一工件固定台上，所述第二工件抓取结构用于抓取所述第二工件固定台或者翻板平台上的工件，将所述工件放置于所述翻板平台或者第二工件固定台上，所述翻板平台设置于所述导轨上，用于完成所述工件的翻转。
具体而言，本实施例的第一移动式龙门加工单元完成工件的一面后，通过第一工件抓取结构将工件从第一工作台上取出，第一移动式龙门带动该工件移动至翻板平台。第一工件抓取结构将该工件放置在该翻板平台上。翻板平台完成该工件的翻转。该翻板平台固定于工作台上，可以为现有技术中的翻板结构，本实施例对此不加以限定。第二移动式龙门移动至该翻板平台通过第二工件抓取结构将翻转后的工件取走，并移动至第二工作台。在第二工作台上完成工件另一面的加工。第一移动式龙门加工单元和第二移动式加工单元也可以同时独立加工工件。实现了工件的连续加工。节省了工件从导轨上卸下装上的时间，提高了工作效率。系统的侧视图如图2所示。机床其他结构为现有技术，此处不再赘述。
进一步地，第一工件抓取结构、第二工件抓取结构包括：
工件夹紧机、支架、滑块、抓取导轨、液压缸和龙门机床；
所述滑块固定在所述龙门机床的横梁中部，所述支架上固定有所述抓取 导轨，所述抓取导轨与所述滑块相连，所述液压缸固定在所述横梁上，所述液压缸的液压杆与所述支架连接，所述液压缸驱动所述支架沿所述滑块上下运动，所述支架下端设有所述工件夹紧机；
所述支架包括竖向支撑部和横向固定部，所述横向固定部一端与所述竖向支撑部的底端固定连接，另一端固定所述工件夹紧机，所述横向固定部位于靠近所述双驱动丝杠传动结构的一侧。
具体而言，如图3和图4所示，本实施例工件夹紧机包括气动手指和夹爪，夹爪安装在气动手指上。夹爪在气动手指的驱动下张开与闭合，实现对工件的夹取。本实施例滑块共有4个，分别固定在龙门机床的横梁中部上下左右四个位置。抓取导轨为两条，固定在竖向支撑部的与滑块之间。
当龙门机床上的工件需要搬运时，龙门机床的驱动电机，通过丝杠和丝杠螺母驱动门式框架移动至工件上方位置处，支架在液压缸驱动下降低高度，使支架下端的工件夹紧机降低至工件所在位置，工件夹紧机通过气动装置张开夹爪夹取工件，然后支架在液压缸驱动下带动工件夹紧机提升工件，由门式框架搬运工件至目标位置上方，液压缸驱动支架下降至目标位置，工件夹紧机释放工件，完成搬运。该工件搬运装置可以由龙门机床的横梁带动，进行工件搬运，不需将工件搬运出机床，提高了工作效率；该搬运过程由机床操作完成，不需单独设置搬运机构，节省了人工成本。
本实施例在龙门机床的横梁中部上设有工件搬运装置，工件搬运装置包括工件夹紧机、支架、滑块、导轨和液压缸，液压缸固定在龙门机床的横梁中部，液压缸的液压杆与支架连接，滑块固定在横梁上，导轨竖向固定在支架两侧，滑块与导轨相连，液压缸可驱动支架，使支架在滑块上沿导轨上下运动，支架下端设有工件夹紧机，工件夹紧机夹取工件后，可随龙门机床横梁运动，进行工件搬运，减少了工件搬运时间，提高了工作效率。
进一步地，所述侧置摆头包括：摆头、滑枕、滑鞍、摆头导轨、第一滑块、第二滑块及第三滑块；
所述摆头导轨固定于所述滑枕一侧，所述摆头固定于所述滑枕另一侧；所述第一滑块、第二滑块及第三滑块的一端在所述导轨上滑动，所述第一滑块、第二滑块及第三滑块滑的另一端等间距固定于所述滑鞍同侧。
具体而言，如图5所示，现有的龙门机床摆头安装在滑枕的下端面上， 摆头的安装面距离滑鞍上最下方的一对滑块距离较大，这样滑枕的变形较大。
本发明的摆头与滑枕的结构，如图6、图7所示，摆头设置于滑枕前端的固定台上，导轨固定于滑枕后端与固定台相对，第一滑块、第二滑块及第三滑块固定于滑鞍，第一滑块、第二滑块及第三滑块在导轨上滑动；如图8所示，固定台与滑枕一体成型，固定台包括第一固定板、第二固定板、第三固定板及支撑板构成，第一固定板及第二固定板的形状及尺寸相同，二者相互平行设置并均垂直于支撑板，支撑板设置有用于固定摆头的通孔；第三固定板与第一固定板、第二固定板及支撑板均垂直，第三固定板与滑枕固定固定台的一面平行，第一固定板、第二固定板、第三固定板及支撑板一体成型；固定台有多个固定板组合而成的结构提高了固定台的刚性，更能稳固的支撑摆头，使摆头在工作时不易晃动。
进一步地，所述滑枕设置有固定所述摆头的固定台，所述固定台包括：第一固定板、第二固定板、第三固定板及支撑板；
所述第一固定板与所述第二固定板相互平行，所述第一固定板与所述第二固定板均垂直于所述支撑板，所述支撑板设置有用于固定所述摆头的通孔，所述第三固定板与所述第一固定板、所述第二固定板及所述支撑板均垂直；所述第一固定板、所述第二固定板、所述第三固定板及所述支撑板一体成型，所述第三固定板与所述滑枕平行，所述第一固定板、所述第二固定板及所述支撑板与所述滑枕一体成型。
进一步地，所述固定台还包括：第一固定架、第二固定架及第三固定架；
所述第一固定架及所述第二固定架均与所述支撑板平行并位于所述支撑板上方；所述第一固定架及所述第二固定架与所述滑枕连接，所述第一固定架及所述第二固定架朝外一边均设置有与所述通孔靠近所述滑枕侧的弧度匹配的形状；所述第三固定架贯穿于所述第第二固定架并与所述支撑板及所述第一固定架相交，所述第三固定架与所述第一固定架、所述第二固定架及所述支撑板均垂直。
具体而言，第一固定架及二固定架形状及尺寸相同，第一固定架及第二固定架为矩形一边为向内凹的圆弧，圆弧的弧度与支撑板的通孔靠近滑枕一侧的弧度相匹配，第一固定架及第二固定架均与支撑板相互平行，并位于支撑板上方，第二固定架位于支撑板及第一支撑板之间；第三固定架为矩形， 其宽度与支撑板的通孔与滑枕距离相等，第三固定架与第一固定架、第二固定架及支撑板均垂直，第三固定架穿过第二固定架与支撑板及第一固定架相交，第一固定架、第二固定架及第三固定架均与固定台一体成型；第一固定架、第二固定架及第三固定架进一步的稳固了摆头，加固了摆头的稳定性，增加了整体结构的刚性，减小了滑枕的变形。
固定台的支撑板与第三滑块等高，高度为当滑鞍位于导轨的最顶端时第三滑块的高度，该高度即为固定台固定摆头的高度，该高度使得摆头的安装面距离滑鞍上的第三滑块距离较小，进而在工作过程中滑枕的变形较小，提高了工作效率。滑枕位于固定台下方的部分设计成厚度a向下逐渐减小的楔形结构，为摆头预留足够的工作空间。
支撑板与滑鞍位于导轨的最顶端时的第三滑块等高，第三滑块位于第一滑块及第二滑块下方。位于支撑板下方的滑枕厚度向下逐渐减小。本发明解决了摆头的安装面与滑鞍的最下方的一对滑块距离较大，使得滑枕容易产生较大的变形，有效的提高了加工精度。
进一步地，所述第一驱动丝杠传动结构、第二驱动丝杠传动结构包括：
滑鞍、第一驱动电机、第二驱动电机、第一电机座、第二电机座、第一同步带、第二同步带、丝杠、第一主动轮、第二主动轮、第一从动轮及第二从动轮；
所述丝杠通过上支座与下支座固定于所述滑鞍；所述第一电机座及第二电机座固定于所述滑鞍顶部，所述第一驱动电机及所述第二驱动电机分别固定于所述第一电机座及第二电机座上，所述第一主动轮与所述第一驱动电机相连，所述第二主动轮与所述第二驱动电机相连；所述第一从动轮与所述二从动轮均与所述丝杠连接，所述第一同步带连接所述第一主动轮及所述第一从动轮，所述第二同步带连接所述第二主动轮及所述第二从动轮。
具体而言，本实施例第一电机座及第二电机座为两个不等高的空心钢笼，两个空心钢笼上表面分别固定第一驱动电机及第二驱动电机。第一电机座及第二电机座除上表面与丝杠对应的边没有突沿，其他边均设置有向对边延伸的突沿。如图9、图10所示，所示丝杠两端通过轴承分别与上支座及下支座固定，上支座与下支座与滑鞍一体成型；第一电机座及第二电机座为两个高度不等的空心钢笼，第一电机座高度高于第二电机座，第一驱动电机固定于 第一电机座，第二驱动电机固定于第二电机座；第一电机座及第二电机座顶面预留可使第一驱动电机及第二驱动电机的电机轴通过的通孔，第一电机座及第二电机座通过螺栓固定于滑鞍；
第一主动轮与第一驱动电机相连，第一从动轮与丝杠的顶端相连，第二主动轮与第二驱动电机相连，第二从动轮与丝杠的顶端相连，第一从动轮设置于第二从动轮上方，第一主动轮与第一从动轮在同一水平面，第二主动轮与第二从动轮在同一水平面；第一同步带与第一主动轮及第一从动轮相连，第二同步带与第二主动轮及第二从动轮相连，第一从动轮及第二从动轮均通过胀套与丝杠相连，通过胀套的胀紧作用，使得第一从动轮及第二从动轮与丝杠稳固连接不会沿丝杠上下及旋转窜动；当第一驱动电机及第二驱动电机启动时，第一主动轮及第二主动轮分别带动第一同步带及第二同步带运转，第一同步带及第二同步带分别带动第一从动轮及第二从动轮运转，进而实现第一从动轮及第二从动轮带动丝杆运转。单根丝杆的设计减小了机床的驱动装置所占用的空间，并节约了成本，同时电机座的空心钢笼设计，利于对第一同步带、第二同步带、第一主动轮及第二主动轮的检修及维护。
第一电机座及第二电机座具有分别支撑第一驱动电机及第二驱动电机的作用，为了提高支撑的稳定性，使第一驱动电机及第二驱动电机能够稳固的坐落于第一电机座及第二电机座上，使第一电机座及第二电机座的各边均设置相对变延伸的突沿，提高了第一电机座及第二电机座的刚性及支撑稳定性，防止了第一驱动电机及第二驱动电机在工作时剧烈震动，降低工作效率。
进一步地，所述第一同步带与第二同步带夹角为60°～180°之间。
具体而言，通过调节第一驱动电机及第二驱动电机的位置，使得第一同步带及第二同步带的夹角在60°～180°之间。该角度更利于第一驱动电机及第二驱动电机驱动丝杠进行工作，减小两条皮带预紧力的合力，进而减小轴承的受力并能够增加设备的使用寿命。
进一步地，所述第一从动轮与所述第二从动轮间距不大于50mm。
具体而言，如图11所示，第一从动轮与第二从动轮间距越小越好，距离越小，丝杠悬伸越短，受到的弯矩越小，使丝杠不容易变形，因此，第一从动轮与所述第二从动轮间距不宜超过50mm。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对 其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (8)

  1. 一种工件自动翻转加工的双工位龙门组合加工系统，其特征在于，包括：
    第一移动式龙门加工单元、第二移动式龙门加工单元、翻板平台、第一工件固定台、第二工件固定台、导轨和工作台，所述翻板平台设置于所述工作台上，且位于所述第一龙门加工单元和所述第二龙门加工单元之间；
    所述第一移动式龙门加工单元包括：第一横梁、第一工件抓取结构、第一双驱动丝杠传动结构、第一侧置摆头单元，所述第二移动式龙门加工单元包括：第二横梁、第二工件抓取结构、第二双驱动丝杠传动结构、第二侧置摆头；
    所述第一工件抓取结构设置于所述第一横梁相对于所述第二横梁的一侧，所述第一双丝杠传动结构设置于所述第一横梁的另一侧，所述第二工件抓取结构设置于所述第二横梁相对于所述第一横梁的一侧，所述第二双丝杠传动结构设置于所述第二横梁的另一侧，所述第一双驱动丝杠传动结构驱动所述第一侧置摆头上下运动，所述第二双驱动丝杠传动结构驱动所述第二侧置摆头上下运动；
    所述第一工件抓取结构用于抓取所述第一工件固定台或者翻板平台上的工件，将所述工件放置于所述翻板平台或者第一工件固定台上，所述第二工件抓取结构用于抓取所述第二工件固定台或者翻板平台上的工件，将所述工件放置于所述翻板平台或者第二工件固定台上，所述翻板平台设置于所述导轨上，用于完成所述工件的翻转。
  2. 根据权利要求1所述的系统，其特征在于，第一工件抓取结构、第二工件抓取结构包括：
    工件夹紧机、支架、滑块、抓取导轨和液压缸；
    所述滑块固定在所述龙门机床的横梁中部，所述支架上固定有所述抓取导轨，所述抓取导轨与所述滑块相连，所述液压缸固定在所述横梁上，所述液压缸的液压杆与所述支架连接，所述液压缸驱动所述支架沿所述滑块上下运动，所述支架下端设有所述工件夹紧机；
    所述支架包括竖向支撑部和横向固定部，所述横向固定部一端与所述竖向支撑部的底端固定连接，另一端固定所述工件夹紧机，所述横向固定部位于靠近所述双驱动丝杠传动结构的一侧。
  3. 根据权利要求1所述的系统，其特征在于所述侧置摆头单元包括：摆头、滑枕、滑鞍、摆头导轨、第一滑块组、第二滑块组及第三滑块组；
    所述滑鞍一侧设置有容纳槽，所述容纳槽的两内侧壁上均设置有所述第一滑块组、第二滑块组及第三滑块组，所述滑枕置于所述容纳槽中，所述滑枕上与所述容纳槽的两内侧壁对应的面上均设有所述摆头导轨，所述摆头导轨与所述第一滑块组、第二滑块组及第三滑块组连接，所述滑枕上与所述滑鞍相对的一侧设有所述摆头。
  4. 根据权利要求3所述的系统，其特征在于，所述滑枕设置有固定所述摆头的固定台，所述固定台包括：第一固定板、第二固定板、第三固定板及支撑板；
    所述第一固定板与所述第二固定板相互平行，所述第一固定板与所述第二固定板均垂直于所述支撑板，所述支撑板设置有用于固定所述摆头的通孔，所述第三固定板与所述第一固定板、所述第二固定板及所述支撑板均垂直；所述第一固定板、所述第二固定板、所述第三固定板及所述支撑板一体成型，所述第三固定板与所述滑枕平行，所述第一固定板、所述第二固定板及所述支撑板与所述滑枕一体成型。
  5. 根据权利要求4所述的系统，其特征在于，所述固定台还包括：第一固定架、第二固定架及第三固定架；
    所述第一固定架及所述第二固定架均与所述支撑板平行并位于所述支撑板上方；所述第一固定架及所述第二固定架与所述滑枕连接，所述第一固定架及所述第二固定架朝外一边均设置有与所述通孔靠近所述滑枕侧的弧度匹配的形状；所述第三固定架贯穿于所述第第二固定架并与所述支撑板及所述第一固定架相交，所述第三固定架与所述第一固定架、所述第二固定架及所述支撑板均垂直。
  6. 根据权利要求1所述的系统，其特征在于，所述第一驱动丝杠传动结构、第二驱动丝杠传动结构包括：
    滑鞍、第一驱动电机、第二驱动电机、第一电机座、第二电机座、第一同步带、第二同步带、丝杠、第一主动轮、第二主动轮、第一从动轮及第二从动轮；
    所述丝杠通过上支座与下支座固定于所述滑鞍；所述第一电机座及第二 电机座固定于所述滑鞍顶部，所述第一驱动电机及所述第二驱动电机分别固定于所述第一电机座及第二电机座上，所述第一主动轮与所述第一驱动电机相连，所述第二主动轮与所述第二驱动电机相连；所述第一从动轮与所述二从动轮均与所述丝杠连接，所述第一同步带连接所述第一主动轮及所述第一从动轮，所述第二同步带连接所述第二主动轮及所述第二从动轮。
  7. 根据权利要求6所述的系统，其特征在于，所述第一同步带与第二同步带夹角为60°～180°之间。
  8. 根据权利要求7所述的系统，其特征在于，所述第一从动轮与所述第二从动轮间距不大于50mm。
PCT/CN2020/083220 2019-04-04 2020-04-03 工件自动翻转加工的双工位龙门组合加工系统 WO2020200308A1 (zh)

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