A dual-spindle turning and milling compound machining center

Abstract

The present invention relates to a dual-spindle turning and milling compound machining center, which aims to solve the technical problem of insufficient functionality in the current dual-spindle turning and milling compound machining center with a single tool holder structure, and includes an operating machine, an engagement frame, an adjustment component, a fixed spindle component, a scissor-type lifting adjustment frame, a moving spindle component, a three-axis adjustment component, a flip adjustment structure and an extended milling system. The present invention realizes the basic work of turning and milling a long-axis workpiece with a single tool holder; and uses the extended milling system to expand the adjustment function, so that the tool head is extended relative to the radial position of the fixed spindle component and the moving spindle component to contact and perform in-depth milling operations with two short-axis workpieces; through the above two operating methods, the single tool holder structure can respectively complete the conventional milling work of a single long-axis workpiece, and the synchronous and efficient milling work of two short-axis workpieces, enriching the functionality of the dual-spindle turning and milling compound machining center with a single tool holder structure.

Description

Technical Field

[0001] The invention relates to the technical field of turning and milling, and in particular to a dual-spindle turning and milling compound machining center. Background Art

[0002] A machine tool is a device that uses a tool to cut metal workpieces. The machine tool has a clamping tool device and a clamping workpiece device. During cutting, the tool and the workpiece must move relative to each other. According to the movement state of the tool and the workpiece, cutting processing includes turning and milling. Turning is when the tool is fixed and the workpiece rotates, while milling is when the workpiece is fixed and the tool rotates. CNC compound processing is to put several different processing techniques on the same CNC machine tool to realize the processing of parts. For example, turning, milling, drilling, etc. can be performed on a CNC machine tool. It is also one of the most popular advanced manufacturing technologies in the field of metal cutting in recent years. The biggest advantage of CNC machine tools with compound processing capabilities is that they can realize the processing of parts with multiple different processes through one part clamping, thereby reducing machine tools and fixtures, eliminating the need for transportation and storage between processes, improving the processing accuracy of parts, shortening the manufacturing cycle and saving the operating area, bringing benefits to users.

[0003] Existing dual-spindle turning and milling compound machining centers or machining devices mostly rotate the machining workpiece through two relatively distributed spindles. The relatively dual-spindle structural setting can facilitate the machining operations on both ends of a single short-axis workpiece; the workpiece is processed in conjunction with the adjustment of the tool holder and the tool changing assembly, among which the single tool holder structure is the most common; the long-axis workpiece is clamped together for machining by the dual spindles to reduce the situation of the tool holder assembly causing tool vibration during the rotation of the long-axis workpiece; the single tool holder structure is also suitable for the machining of long-axis workpieces, but the efficiency becomes low during the machining operation of short-axis workpieces, and the single tool holder structure needs to be switched back and forth.

[0004] The single tool holder structure in the existing dual-spindle turning-milling machining center or machining device has a low setting cost, which is effectively adapted to the high-efficiency machining efficiency of single-sided turning of short-axis workpieces, and has insufficient functionality; therefore, it is particularly important to propose a dual-spindle turning-milling machining center that can efficiently perform double-end synchronous clamping and rotation of short-axis workpieces and conventional long-axis workpieces under a single tool holder structure mode; in view of this, we propose a dual-spindle turning-milling machining center. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, meet actual needs, and provide a dual-spindle turning and milling compound machining center to solve the technical problem of insufficient functionality in the current dual-spindle turning and milling compound machining center with a single tool holder structure.

[0006] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: designing a dual-spindle turning and milling compound machining center, including an operating machine, an engagement frame, an adjustment component, a fixed spindle component, a scissor-type lifting adjustment frame, a moving spindle component, a three-axis adjustment component, a flip adjustment structure and an extended milling system; the engagement frame is an arc-shaped structure and is fixedly arranged on the operating machine, and the axial gap between the inner wall of the engagement frame and the outer surface of the operating machine constitutes an operating chamber; the adjustment component is movably arranged on one side of the engagement frame; the fixed spindle component is arranged on the other side of the engagement frame through a limit seat; the scissor-type lifting adjustment frame is fixedly arranged at the end of the adjustment component; the moving spindle assembly is arranged at the lifting end of the scissor-type lifting adjustment frame through a linear slide rail; the three-axis adjustment component is arranged on the operating machine; the flip adjustment structure is arranged at the third movable end of the three-axis adjustment component; and the extended milling system is arranged on the flip adjustment structure.

[0007] Preferably, an upper surface of the operating machine table is provided with an embedded receiving groove connected to the operating cavity.

[0008] Preferably, the adjustment component includes a sliding arc frame and an annular servo drive motor; the sliding arc frame is slidably arranged on one side of the meshing frame; and a driving connection seat is provided on the side of the sliding arc frame relatively away from the embedded receiving groove, and at least one mounting seat is provided on the side of the sliding arc frame relatively close to the embedded receiving groove; the annular servo drive motor is arranged on one side of the driving connection seat; and a radial adjustment gear meshing with the meshing frame is provided on the output end of the annular servo drive motor.

[0009] Preferably, the flip adjustment structure comprises a flip adjustment motor arranged at the third movable end of the three-axis adjustment component, and the output end of the flip adjustment motor is provided with an output coupling rotatably connected to the third movable end of the three-axis adjustment component.

[0010] Preferably, the extended milling system includes a flip connecting frame, a cutter disc assembly, a cutter head mounting seat, a driving disc, an adjusting shaft, a synchronous gear and a control motor; the flip connecting frame is arranged at the end of the output coupling; the cutter disc assembly is movably arranged on the flip connecting frame through a rotating seat; a plurality of cutter head mounting seats are arranged on the cutter disc assembly in a circular shape with equal spacing; the driving disc is arranged on one side of the cutter disc assembly and connected to the cutter head mounting seat; and the inner wall of the cutter disc assembly is axially connected to the inner wall of the driving disc to form a control cavity; the adjusting shaft is movably arranged in the control cavity Inner; wherein, the adjusting shaft is composed of a keyed portion and a spiral portion; wherein, a key groove connected to the adjusting shaft key is provided on the surface of the keyed portion; and, at least one spiral meshing extrusion driving groove is provided on the surface of the spiral portion; a connecting rotating seat is provided at the end of the keyed portion; and, a push rod is installed and connected on the surface of the connecting rotating seat; the synchronous gear is movably arranged on the push rod through a bearing; the control motor is arranged on one side of the synchronous gear and connected to the flip connecting frame; and, a driving gear meshing with the synchronous gear is provided at the output end of the control motor.

[0011] Preferably, the flip connecting frame is composed of a semi-cylindrical adapter and a rectangular connecting portion, wherein the radius of the adapter is smaller than the axial radius of the cutter disc assembly; and the cutter disc assembly, synchronous gear, control motor and drive gear are arranged linearly.

[0012] Preferably, the cutter disc assembly consists of a cutter disc body, a connecting shaft and a driving sprocket, and the synchronous gear is meshed and connected with the driving sprocket and the driving gear respectively; wherein, a plurality of limiting grooves that slide with the cutter head mounting seat are provided in a circular shape and at equal intervals inside the cutter disc body.

[0013] Preferably, a limiting sliding protrusion is provided on the side of the cutter head mounting seat relatively close to the driving disk; and two symmetrically distributed cutter head mounting seats are both installed with milling cutter heads and drilling components of the same size and specification.

[0014] Preferably, the driving disk is provided with a force-bearing rotating protrusion that slides with the engaging extrusion driving groove at a position relative to the control cavity; and an extrusion groove with an arc-shaped structure is provided on the surface of the driving disk relative to the position of the limiting sliding protrusion.

[0015] A method for using a dual-spindle turning-milling compound machining center comprises the following steps:

[0016] S100: First-level adjustment processing:

[0017] S101: If the milling operation of the long axis workpiece is adjusted:

[0018] The radial adjustment gear is driven by the annular servo drive motor, so that the sliding arc frame can drive the scissor-type lifting adjustment frame and the moving spindle assembly to move away from the fixed spindle assembly for arc sliding adjustment; then the scissor-type lifting adjustment frame drives the linear slide rail and the moving spindle assembly to perform lifting adjustment, so that the moving spindle assembly and the fixed spindle assembly are located on the same horizontal axis;

[0019] S102: If the milling operation of two short-axis workpieces is adjusted synchronously:

[0020] The radial adjustment gear is driven by the annular servo drive motor, so that the sliding arc frame can drive the scissor-type lifting adjustment frame and the moving spindle assembly to approach the fixed spindle assembly for arc sliding adjustment; so that the fixed spindle assembly and the moving spindle assembly are in a horizontal state;

[0021] S200: Secondary combination adjustment:

[0022] S201: In the adjustment processing state of performing milling operation on the long-axis workpiece in S101;

[0023] One end of the long-axis workpiece is clamped by mechanically or manually cooperating with the fixed spindle assembly, and then the moving spindle assembly is driven by the linear slide rail to linearly slide close to the other end of the long-axis workpiece, and then the other end of the long-axis workpiece is clamped by the moving spindle assembly;

[0024] S202: Under the adjustment process of 102, the two short-axis workpieces are simultaneously milled;

[0025] First, the linear guide rail is used to drive the moving spindle assembly to slide and adjust so that the fixed spindle assembly and the moving spindle assembly overlap in a top-down view; then, the fixed spindle assembly and the moving spindle assembly are mechanically or manually coordinated to clamp two short-axis workpieces respectively;

[0026] S300: Milling adjustment:

[0027] S301: If the milling adjustment is performed on the long axis workpiece:

[0028] The cutter head assembly is locked by controlling the motor to stop working, and the stroke of the push rod drives the adjustment shaft to perform linear non-rotational sliding movement, and the meshing extrusion driving groove is used to squeeze the force-bearing rotating protrusion, so that the driving disc rotates, and the driving disc rotates and cooperates with the extrusion groove to cause the cutter head mounting seat to telescopically move under the force of the limit sliding protrusion to retract the cutter head and the drilling assembly;

[0029] S400: Function switching: The driving gear, synchronous gear and driving gear disc can be driven to rotate synchronously by controlling the motor. The rotation angle of the cutter disc assembly, the cutter head mounting seat and the driving disc can be adjusted by controlling the motor rotation, which is used to adjust the relative vertical state of different milling cutter heads and drilling assemblies in the upper and lower positions;

[0030] S500: Milling work:

[0031] S501: If a long-axis workpiece is to be milled, the three-axis adjustment component drives the flip adjustment structure and the extended milling system to approach the long-axis workpiece to perform the milling work;

[0032] S502: If two short-axis workpieces are to be milled; the three-axis adjustment component drives the flip adjustment structure and the extended milling system to move linearly to the center axis of the gap between the fixed spindle assembly and the moving spindle assembly, and only moves forward and backward and left and right during the milling process; the motor is controlled to stop working to lock the cutter disc assembly, and the adjustment shaft is driven by the return stroke of the push rod to perform linear non-rotational sliding movement, and the meshing extrusion drive groove is used to extrude the force-bearing rotating protrusion, so that the drive disc rotates, and the drive disc rotates and cooperates with the extrusion groove to cause the cutter head mounting seat to telescope under the force of the limiting sliding protrusion to expand and retract the cutter head and the drilling assembly, so as to realize the processing operation of milling the surface of the short-axis workpiece.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention arranges a scissor-type lifting and adjusting frame so that the moving spindle assembly and the fixed spindle assembly are located on the same horizontal axis, and the spindle clamping work can be performed on both ends of the long-axis workpiece, and the basic work of turning and milling the long-axis workpiece by a single tool holder can be realized; and the moving spindle assembly is adjusted to descend by the scissor-type lifting and adjusting frame, and is flipped to the top of the fixed spindle assembly by adjusting the arc of the adjusting assembly, and the fixed spindle assembly and the moving spindle assembly are located in a horizontal state, and at the same time, the extended milling system is located at the center axis of the gap between the fixed spindle assembly and the moving spindle assembly, and the extended adjustment function of the extended milling system is utilized to expand the radial orientation of the tool head relative to the fixed spindle assembly and the moving spindle assembly to contact and perform in-depth milling operations on the two short-axis workpieces respectively; through the above two operating modes, it is realized that the single tool holder structure can respectively complete the conventional milling work of a single long-axis workpiece, and the synchronous and efficient milling work of two short-axis workpieces, thereby enriching the functionality of the dual-spindle turning and milling compound machining center with a single tool holder structure.

[0035] 2. The present invention firstly facilitates the collection of basic coolant and waste chips through the embedded receiving groove setting; at the same time, the embedded setting is used to avoid the movement interference between the scissor-type lifting adjustment frame and the operating machine during the rotation adjustment of the adjustment component.

[0036] 3. The present invention drives the radial adjustment gear through the annular servo drive motor, so that the sliding arc frame can drive the scissor-type lifting adjustment frame and the moving spindle assembly to adjust the azimuth, thereby realizing the necessary adjustment for the synchronous milling of two short-axis workpieces by the dual-spindle turning and milling compound machining center with a single tool holder structure.

[0037] 4. In the present invention, the output coupling is driven by the flip adjustment motor to drive the extended milling system as a whole to perform 180-degree reciprocating rotation adjustment, so that the short-axis workpiece is processed sequentially in a horizontal state where the fixed spindle assembly and the dynamic spindle assembly are located on the same axis.

[0038] 5. The present invention extends the limited distance that the cutter head mounting seat protrudes outward by making the radius of the adapter smaller than the axial radius of the cutter disc assembly so that the cutter head and other components can fully extend and protrude outside the diameter of the adapter, thereby satisfying the adjustment of the distance of the cutter head mounting seat protruding outward due to the milling shape size in conventional short-axis workpiece milling; and reduces the protruding distance arrangement caused by the device adjusting the movement of the cutter head assembly when processing workpieces with complex specifications or milling to an internal distance that is too long.

[0039] 6. The present invention installs the same milling cutter head and drilling assembly of the same size and specification on two symmetrically distributed cutter head mounting seats, and adjusts the two cutter head mounting seats so that they are vertically distributed up and down, so as to perform synchronous processing operations on the short-axis workpiece clamped by the upper and lower distributed moving spindle assemblies and fixed spindle assemblies respectively.

[0040] 7. The present invention can drive the driving gear, the synchronous gear and the driving gear disc to rotate synchronously by controlling the motor. The rotation angle of the cutter disc assembly, the cutter head mounting seat and the driving disc as a whole can be adjusted by controlling the motor rotation, which is used to adjust the relative vertical state of different milling cutter heads and drilling assemblies in the upper and lower positions. The cutter disc assembly can be locked by controlling the motor to stop working. The adjustment shaft is driven to perform linear non-rotational sliding movement by the return stroke of the push rod, and the meshing extrusion driving groove is used to extrude the force-bearing rotating protrusion to make the driving disc rotate. The driving disc rotates and cooperates with the extrusion groove to cause the cutter head mounting seat to telescope under the force of the limiting sliding protrusion to expand and retract the cutter head and the drilling assembly, thereby realizing the processing operation of milling the surface of the short-axis workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0042] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0043] Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0044] Figure 4 It is a schematic diagram of the overall rear-view stereoscopic structure of the present invention;

[0045] Figure 5 For the present invention Figure 4 A schematic diagram of the partially enlarged structure at B in the middle;

[0046] Figure 6 It is a schematic diagram of the three-dimensional split structure of the extended milling system in the present invention;

[0047] Figure 7 It is a schematic diagram of the three-dimensional structure of the adjustment shaft in the present invention.

[0048] In the figure: 1. Operating machine; 2. Engagement frame; 3. Adjustment assembly; 4. Fixed spindle assembly; 5. Scissor-type lifting adjustment frame; 6. Moving spindle assembly; 7. Linear slide; 8. Three-axis adjustment assembly; 9. Flip adjustment structure; 10. Extended milling system;

[0049] 101. Built-in receiving groove;

[0050] 301, sliding arc frame; 3011, driving connection seat; 3012, mounting seat; 302, annular servo driving motor; 3021, radial adjustment gear;

[0051] 401, limited seat;

[0052] 901, flip adjustment motor; 9011, output coupling;

[0053] 1001, flip connecting frame; 1002, cutter disc assembly; 10021, cutter disc body; 10022, driving gear disc; 10023, limiting slide groove; 1003, cutter head mounting seat; 10031, limiting sliding protrusion; 1004, driving disc; 10041, force-bearing rotating protrusion; 10042, extrusion groove; 1005, adjusting shaft; 10051, keyway; 10052, meshing extrusion driving groove; 10055, connecting rotating seat; 1009, synchronous gear; 1006, push rod; 1007, control motor; 10071, driving gear. DETAILED DESCRIPTION

[0054] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0055] Example 1: A dual-spindle turning and milling compound machining center, see Figures 1 to 7, including an operating machine 1, an engagement frame 2, an adjustment component 3, a fixed spindle component 4, a scissor-type lifting adjustment frame 5, a dynamic spindle component 6, a three-axis adjustment component 8, a flip adjustment structure 9 and an extended milling system 10; the engagement frame 2 is an arc-shaped structure and is fixedly arranged on the operating machine 1, and the axial gap between the inner wall of the engagement frame 2 and the outer surface of the operating machine 1 constitutes an operating chamber; the adjustment component 3 is movably arranged on one side of the engagement frame 2; the fixed spindle component 4 is arranged on the other side of the engagement frame 2 through a limit seat 401; the scissor-type lifting adjustment frame 5 is fixedly arranged at the end of the adjustment component 3; the dynamic spindle component 6 is arranged at the lifting end of the scissor-type lifting adjustment frame 5 through a linear slide rail 7; the three-axis adjustment component 8 is arranged on the operating machine 1; the flip adjustment structure 9 is arranged at the third active end of the three-axis adjustment component 8; the extended milling system 10 is arranged on the flip adjustment structure 9. The present invention arranges the scissor-type lifting and adjusting frame 5 so that the moving spindle assembly 6 and the fixed spindle assembly 4 are located on the same horizontal axis, and the spindle clamping work can be performed on the two ends of the long-axis workpiece, and the basic work of turning and milling the long-axis workpiece by a single tool holder can be realized; and the moving spindle assembly 6 is adjusted to be lowered by the scissor-type lifting and adjusting frame 5, and is flipped to the top of the fixed spindle assembly 4 by the arc adjustment of the adjusting assembly 3, and the fixed spindle assembly 4 and the moving spindle assembly 6 are located in a horizontal state, and at the same time, the extended milling system 10 is located in the gap between the fixed spindle assembly 4 and the moving spindle assembly 6 and moves linearly on the axis, and the extended adjustment function of the extended milling system 10 is utilized to expand the radial orientation of the tool head relative to the fixed spindle assembly 4 and the moving spindle assembly 6 to contact and perform in-depth milling operations with the two short-axis workpieces respectively; through the above two operation modes, it is realized that the single tool holder structure can respectively complete the conventional milling work of a single long-axis workpiece, and the synchronous and efficient milling work of two short-axis workpieces, thereby enriching the functionality of the dual-spindle turning and milling compound machining center with a single tool holder structure.

[0056] Specifically, the upper surface of the operating platform 1 is provided with an embedded receiving groove 101 connected to the operating cavity. The present invention first facilitates the collection of basic coolant and waste chips through the embedded receiving groove 101; at the same time, the embedded setting is used to avoid motion interference between the scissor-type lifting adjustment frame 5 and the operating platform 1 during the rotation adjustment of the adjustment component 3.

[0057] Furthermore, the adjustment component 3 includes a sliding arc frame 301 and an annular servo drive motor 302; the sliding arc frame 301 is slidably arranged on one side of the meshing frame 2; and a driving connection seat 3011 is provided on the side of the sliding arc frame 301 relatively far from the embedded receiving groove 101, and at least one mounting seat 3012 is provided on the side of the sliding arc frame 301 relatively close to the embedded receiving groove 101; the annular servo drive motor 302 is arranged on one side of the driving connection seat 3011; and a radial adjustment gear 3021 meshing with the meshing frame 2 is provided at the output end of the annular servo drive motor 302. The present invention drives the radial adjustment gear 3021 through the annular servo drive motor 302, so that the sliding arc frame 301 can drive the scissor-type lifting adjustment frame 5 and the moving spindle assembly 6 to adjust the azimuth, thereby realizing the necessary adjustment for the milling of two short-axis workpieces synchronously by the dual-spindle turning and milling compound machining center with a single tool holder structure.

[0058] Furthermore, the flip adjustment structure 9 includes a flip adjustment motor 901 disposed at the third active end of the three-axis adjustment assembly 8, and an output coupling 9011 is provided at the output end of the flip adjustment motor 901, which is rotatably connected to the third active end of the three-axis adjustment assembly 8. In the present invention, the flip adjustment motor 901 drives the output coupling 9011 to drive the extended milling system 10 to perform 180-degree reciprocating rotation adjustment as a whole, so that the short-axis workpiece is processed sequentially in a horizontal state where the fixed spindle assembly 4 and the movable spindle assembly 6 are located on the same axis.

[0059] It is worth noting that the extended milling system 10 includes a flip connection frame 1001, a cutter head assembly 1002, a cutter head mounting seat 1003, a drive disc 1004, an adjustment shaft 1005, a synchronous gear 1009 and a control motor 1007; the flip connection frame 1001 is arranged at the end of the output coupling 9011; the cutter head assembly 1002 is movably arranged on the flip connection frame 1001 through a rotating seat; a plurality of cutter head mounting seats 1003 are arranged in a ring shape at equal intervals on the cutter head assembly 1002; the drive disc 1004 is arranged on one side of the cutter head assembly 1002 and connected to the cutter head mounting seat 1003; and the inner wall of the cutter head assembly 1002 is axially connected to the inner wall of the drive disc 1004 to form a control chamber; the adjustment shaft 1005 It is movably arranged in the control cavity; wherein the adjusting shaft 1005 is composed of a keyed portion and a spiral portion; wherein a key slot 10051 connected to the adjusting shaft 1005 with a key is provided on the surface of the keyed portion; and, at least one spiral meshing extrusion driving groove 10052 is provided on the surface of the spiral portion; a connecting rotating seat 10055 is provided at the end of the keyed portion; and, a push rod 1006 is installed and connected on the surface of the connecting rotating seat 10055; the synchronous gear 1009 is movably arranged on the push rod 1006 through a bearing; the control motor 1007 is arranged on one side of the synchronous gear 1009 and connected to the flip connecting frame 1001; and, a driving gear 10071 meshing with the synchronous gear 1009 is provided at the output end of the control motor 1007.

[0060] It is worth noting that the flip connection frame 1001 is composed of a semi-cylindrical adapter and a rectangular connection, wherein the adapter radius is smaller than the axial radius of the cutter head assembly 1002; and the cutter head assembly 1002, the synchronous gear 1009, the control motor 1007, and the drive gear 10071 are arranged and distributed in a linear manner. The present invention extends the limited distance of the cutter head mounting seat 1003 protruding outward by making the adapter radius smaller than the axial radius of the cutter head assembly 1002 so that the cutter head and other components can fully extend and protrude outside the diameter of the adapter, so as to meet the adjustment of the distance of the cutter head mounting seat 1003 extending outward due to the milling shape size in the conventional short-axis workpiece milling process; and reduces the situation of the protruding distance arrangement caused by the device adjusting the movement of the cutter head assembly when processing a workpiece with complex specifications or milling to a too long internal distance.

[0061] It is worth mentioning that a limiting sliding protrusion 10031 is provided on the side of the cutter head mounting seat 1003 relatively close to the driving disk 1004; and the two symmetrically distributed cutter head mounting seats 1003 are both installed with milling cutter heads and drilling components of the same size and specification. The present invention installs the same milling cutter heads and drilling components of the same size and specification on the two symmetrically distributed cutter head mounting seats 1003, and adjusts the two cutter head mounting seats 1003 to be vertically distributed up and down, so as to perform synchronous processing operations on the short-axis workpiece clamped by the upper and lower distributed moving spindle assembly 6 and the fixed spindle assembly 4.

[0062] It is worth emphasizing that the cutter disc assembly 1002 is composed of a cutter disc body 10021, a connecting shaft and a driving gear disc 10022, and the synchronous gear 1009 is meshed and connected with the driving gear disc 10022 and the driving gear 10071 respectively; wherein, a plurality of limiting sliding grooves 10023 which are slidably matched with the cutter head mounting seat 1003 are arranged in a circular shape and at equal intervals inside the cutter disc body 10021; the driving disc 1004 is provided with a force-bearing rotating protrusion 10041 which is slidably matched with the meshing extrusion driving groove 10052 at a position relative to the control cavity; and an extrusion groove 10042 with an arc-shaped structure is provided on the surface of the driving disc 1004 relative to the limiting sliding protrusion 10031. The present invention can drive the driving gear 10071, the synchronous gear 1009, and the driving toothed disc 10022 to rotate synchronously by controlling the motor 1007 to rotate, and can adjust the rotation angle of the cutter head assembly 1002, the cutter head mounting seat 1003, and the driving disc 1004 as a whole by controlling the motor 1007 to rotate, so as to adjust the relative vertical state of different milling cutter heads and drilling assemblies in the upper and lower positions, and can lock the cutter head assembly 1002 by stopping the motor 1007, and the push rod The return stroke of 1006 drives the adjustment shaft 1005 to perform linear non-rotational sliding movement, and cooperates with the meshing extrusion driving groove 10052 to extrude the force-bearing rotating protrusion 10041, so that the driving disk 1004 rotates. The driving disk 1004 rotates and cooperates with the extrusion groove 10042 to cause the tool head mounting seat 1003 to telescope under the force of the limiting sliding protrusion 10031 to expand and retract the tool head and drilling assembly, thereby realizing the milling operation of the short-axis workpiece surface.

[0063] Embodiment 2: A method for using a dual-spindle turning-milling compound machining center, comprising the following steps:

[0064] S100: First-level adjustment processing:

[0065] S101: If the milling operation of the long axis workpiece is adjusted:

[0066] The radial adjustment gear 3021 is driven by the annular servo drive motor 302, so that the sliding arc frame 301 can drive the scissor-type lifting adjustment frame 5 and the moving spindle assembly 6 to move away from the fixed spindle assembly 4 for arc sliding adjustment; then the scissor-type lifting adjustment frame 5 drives the linear slide rail 7 and the moving spindle assembly 6 to perform lifting adjustment, so that the moving spindle assembly 6 and the fixed spindle assembly 4 are located on the same horizontal axis;

[0067] S102: If the milling operation of two short-axis workpieces is adjusted synchronously:

[0068] The radial adjustment gear 3021 is driven by the annular servo drive motor 302, so that the sliding arc frame 301 can drive the scissor-type lifting adjustment frame 5 and the moving spindle assembly 6 to approach the fixed spindle assembly 4 for arc sliding adjustment; so that the fixed spindle assembly 4 and the moving spindle assembly 6 are in a horizontal state;

[0069] S200: Secondary combination adjustment:

[0070] S201: In the adjustment processing state of performing milling operation on the long-axis workpiece in S101;

[0071] One end of the long-axis workpiece is clamped by mechanically or manually cooperating with the fixed spindle assembly 4, and then the linear slide rail 7 drives the moving spindle assembly 6 to linearly slide close to the other end of the long-axis workpiece, and then the moving spindle assembly 6 is used to clamp the other end of the long-axis workpiece;

[0072] S202: Under the adjustment process of 102, the two short-axis workpieces are simultaneously milled;

[0073] First, the linear guide rail 7 is used to drive the moving spindle assembly 6 to slide and adjust so that the fixed spindle assembly 4 and the moving spindle assembly 6 overlap in a top-down view; then, the fixed spindle assembly 4 and the moving spindle assembly 6 are mechanically or manually coordinated to clamp the two short-axis workpieces respectively;

[0074] S300: Milling adjustment:

[0075] S301: If the milling adjustment is performed on the long axis workpiece:

[0076] The cutter head assembly 1002 is locked by controlling the motor 1007 to stop working, and the adjustment shaft 1005 is driven to perform linear non-rotational sliding movement through the stroke of the push rod 1006, and the meshing extrusion driving groove 10052 is used to squeeze the force-bearing rotating protrusion 10041, so that the driving disc 1004 is rotated, and the driving disc 1004 is rotated to cooperate with the extrusion groove 10042 to cause the cutter head mounting seat 1003 to telescopically move under the force of the limit sliding protrusion 10031 to retract the cutter head and the drilling assembly;

[0077] S400: Function switching: The motor 1007 can be controlled to drive the driving gear 10071, the synchronous gear 1009, and the driving toothed disc 10022 to rotate synchronously. The rotation angle of the cutter head assembly 1002, the cutter head mounting seat 1003, and the driving disc 1004 can be adjusted as a whole by controlling the motor 1007 to rotate, so as to adjust the relative vertical state of different milling cutter heads and drilling assemblies in the upper and lower positions;

[0078] S500: Milling work:

[0079] S501: If a long-axis workpiece is to be milled, the three-axis adjustment component 8 drives the flip adjustment structure 9 and the extended milling system 10 to approach the long-axis workpiece to perform the milling work;

[0080] S502: If two short-axis workpieces are to be milled; the three-axis adjustment component 8 drives the flip adjustment structure 9 and the extended milling system 10 to move linearly to the center axis of the gap between the fixed spindle component 4 and the moving spindle component 6, and only moves forward and backward and left and right during the milling process; the motor 1007 is controlled to stop working to lock the cutter disc component 1002, and the adjustment shaft 1005 is driven by the return stroke of the push rod 1006 to perform linear non-rotational sliding movement, and the meshing extrusion driving groove 10052 is used to extrude the force-bearing rotating protrusion 10041, so that the driving disc 1004 rotates, and the driving disc 1004 rotates to cooperate with the extrusion groove 10042 to cause the tool head mounting seat 1003 to telescopically move under the force of the limiting sliding protrusion 10031 to expand and retract the tool head and the drilling component, so as to realize the processing operation of milling the surface of the short-axis workpiece.

[0081] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A dual-spindle turning and milling compound machining center, characterized in that: It comprises an operating machine platform (1), an engagement frame (2), an adjustment component (3), a fixed spindle component (4), a scissor-type lifting adjustment frame (5), a moving spindle component (6), a three-axis adjustment component (8), a flip adjustment structure (9) and an extended milling system (10); The meshing frame (2) is in an arc-shaped structure and is fixedly arranged on the operating machine (1), and the axial gap between the inner wall of the meshing frame (2) and the outer surface of the operating machine (1) forms an operating chamber; the adjustment component (3) is movably arranged on one side of the meshing frame (2); the fixed spindle component (4) is arranged on the other side of the meshing frame (2) through a limit seat (401); the scissor-type lifting adjustment frame (5) is fixedly arranged at the end of the adjustment component (3); the movable spindle component (6) is arranged at the top lifting end of the scissor-type lifting adjustment frame (5) through a linear slide rail (7); the three-axis adjustment component (8) is arranged on the operating machine (1); the flip adjustment structure (9) is arranged at the third movable end of the three-axis adjustment component (8); and the extended milling system (10) is arranged on the flip adjustment structure (9); By setting the scissor-type lifting adjustment frame (5), the moving spindle assembly (6) and the fixed spindle assembly (4) are located on the same horizontal axis, so that the spindle clamping work can be performed on both ends of the long-axis workpiece. Through this setting, the basic work of turning and milling the long-axis workpiece by a single tool holder can be realized; and the moving spindle assembly (6) is adjusted downward by the scissor-type lifting adjustment frame (5), and is flipped to the top of the fixed spindle assembly (4) through arc adjustment of the adjustment assembly (3), so that the fixed spindle assembly (4) and the moving spindle assembly (6) are located in a horizontal state, and at the same time, the extended milling system (10) is located in the gap between the fixed spindle assembly (4) and the moving spindle assembly (6) and moves linearly along the axis, and the extended adjustment function of the extended milling system (10) is used to expand the radial position of the tool head relative to the fixed spindle assembly (4) and the moving spindle assembly (6) to contact the two short-axis workpieces respectively and perform in-depth milling operations.

2. The dual-spindle turning and milling compound machining center according to claim 1, characterized in that: The upper surface of the operating machine platform (1) is provided with an embedded receiving groove (101) which is in communication with the operating cavity.

3. The dual-spindle turning and milling compound machining center according to claim 2, characterized in that: The adjustment component (3) comprises a sliding arc frame (301) and a ring-shaped servo drive motor (302); The sliding arc frame (301) is slidably arranged on one side of the engagement frame (2); and a driving connection seat (3011) is provided on a side of the sliding arc frame (301) relatively away from the embedded receiving groove (101). At least one mounting seat (3012) is provided on a side of the sliding arc frame (301) relatively close to the embedded receiving groove (101); The annular servo drive motor (302) is arranged on one side of the drive connection seat (3011); and a radial adjustment gear (3021) meshing with the meshing frame (2) is provided at the output end of the annular servo drive motor (302).

4. The dual-spindle turning and milling compound machining center according to claim 3, characterized in that: The flip adjustment structure (9) comprises a flip adjustment motor (901) arranged at the third movable end of the three-axis adjustment component (8), and an output coupling (9011) rotatably connected to the third movable end of the three-axis adjustment component (8) is arranged at the output end of the flip adjustment motor (901).

5. The dual-spindle turning and milling compound machining center according to claim 4, characterized in that: The extended milling system (10) comprises a flip connection frame (1001), a cutter head assembly (1002), a cutter head mounting seat (1003), a drive disc (1004), an adjustment shaft (1005), a synchronous gear (1009) and a control motor (1007); The flip connection frame (1001) is arranged at the end of the output coupling (9011); The cutter disc assembly (1002) is movably arranged on the flip connection frame (1001) via a rotating seat; A plurality of cutter head mounting seats (1003) are arranged in a circular shape at equal intervals on the cutter disc assembly (1002); The driving disc (1004) is arranged on one side of the cutter disc assembly (1002) and connected to the cutter head mounting seat (1003); and the inner wall of the cutter disc assembly (1002) and the inner wall of the driving disc (1004) are axially connected to form a control chamber; The adjusting shaft (1005) is movably arranged in the control cavity; wherein the adjusting shaft (1005) is composed of a key portion and a spiral portion; wherein a key groove (10051) connected to the adjusting shaft (1005) by a key is provided on the surface of the key portion; and wherein at least one spiral meshing extrusion driving groove (10052) is provided on the surface of the spiral portion; The end of the key-connecting portion is provided with a connecting rotating seat (10055); and a push rod (1006) is mounted and connected on the surface of the connecting rotating seat (10055); The synchronous gear (1009) is movably arranged on the push rod (1006) via a bearing; The control motor (1007) is arranged on one side of the synchronous gear (1009) and connected to the flip connection frame (1001); and a driving gear (10071) meshing with the synchronous gear (1009) is provided at the output end of the control motor (1007).

6. The dual-spindle turning and milling compound machining center according to claim 5, characterized in that: The flip connection frame (1001) is composed of a semi-cylindrical adapter portion and a rectangular connection portion, wherein the radius of the adapter portion is smaller than the axial radius of the cutter disc assembly (1002); and the cutter disc assembly (1002), the synchronous gear (1009), the control motor (1007), and the drive gear (10071) are arranged and distributed in a linear manner.

7. The dual-spindle turning and milling compound machining center according to claim 5, characterized in that: The cutter disc assembly (1002) is composed of a cutter disc body (10021), a connecting shaft and a driving gear disc (10022), and the synchronous gear (1009) is respectively meshed with the driving gear disc (10022) and the driving gear (10071); wherein a plurality of limiting sliding grooves (10023) that are slidably matched with the cutter head mounting seat (1003) are provided in an annular shape at equal intervals inside the cutter disc body (10021).

8. The dual-spindle turning and milling compound machining center according to claim 7, characterized in that: A limiting sliding protrusion (10031) is provided on the side of the cutter head mounting seat (1003) relatively close to the driving disk (1004); and two symmetrically distributed cutter head mounting seats (1003) are both installed with milling cutter heads and drilling components of the same size and specification.

9. The dual-spindle turning and milling compound machining center according to claim 8, characterized in that: The driving disk (1004) is provided with a force-bearing rotating protrusion (10041) that slidably cooperates with the meshing extrusion driving groove (10052) at a position relative to the control cavity; and an extrusion groove (10042) with an arc-shaped structure is provided on the surface of the driving disk (1004) at a position relative to the limiting sliding protrusion (10031).

10. The method for using the dual-spindle turning-milling compound machining center according to any one of claims 1 to 9, characterized in that: The following steps are involved: S100 first level adjustment processing: S101: If the milling operation of the long axis workpiece is adjusted: The radial adjustment gear (3021) is driven by the annular servo drive motor (302), so that the sliding arc frame (301) can drive the scissor-type lifting adjustment frame (5) and the moving spindle assembly (6) to move away from the fixed spindle assembly (4) for arc sliding adjustment; then the scissor-type lifting adjustment frame (5) drives the linear slide rail (7) and the moving spindle assembly (6) to perform lifting adjustment, so that the moving spindle assembly (6) and the fixed spindle assembly (4) are located on the same horizontal axis; S102: If the milling operation of two short-axis workpieces is adjusted synchronously: The radial adjustment gear (3021) is driven by the annular servo drive motor (302), so that the sliding arc frame (301) can drive the scissor-type lifting adjustment frame (5) and the moving spindle assembly (6) to approach the fixed spindle assembly (4) to perform arc-shaped sliding adjustment; so that the fixed spindle assembly (4) and the moving spindle assembly (6) are in a horizontal state; S200: Secondary combination adjustment: S201: In the adjustment processing state of performing milling operation on the long-axis workpiece in S101; One end of the long-axis workpiece is clamped by mechanically or manually cooperating with the fixed spindle assembly (4), and then the linear slide rail (7) drives the moving spindle assembly (6) to linearly slide close to the other end of the long-axis workpiece, and then the moving spindle assembly (6) is used to clamp the other end of the long-axis workpiece; S202: Under the adjustment process of 102, the two short-axis workpieces are simultaneously milled; First, the linear slide rail (7) is used to drive the moving spindle assembly (6) to slide and adjust so that the fixed spindle assembly (4) and the moving spindle assembly (6) overlap in a top-down view; then, the fixed spindle assembly (4) and the moving spindle assembly (6) are mechanically or manually coordinated to clamp the two short-axis workpieces respectively; S300: Milling adjustment: S301: If the milling adjustment is performed on the long axis workpiece: The cutter head assembly (1002) is locked by controlling the motor (1007) to stop working, and the stroke of the push rod (1006) drives the adjustment shaft (1005) to perform linear non-rotational sliding movement, and cooperates with the meshing extrusion driving groove (10052) to squeeze the force-bearing rotating protrusion (10041) to make the driving disc (1004) rotate, and the driving disc (1004) rotates to cooperate with the extrusion groove (10042) to cause the cutter head mounting seat (1003) to perform telescopic movement under the force of the limit sliding protrusion (10031) to retract the cutter head and the drilling assembly; S400: Function switching: by controlling the motor (1007), the driving gear (10071), the synchronous gear (1009), and the driving toothed disc (10022) can be driven to rotate synchronously. By controlling the rotation of the motor (1007), the rotation angle of the cutter head assembly (1002), the cutter head mounting seat (1003), and the driving disc (1004) can be adjusted as a whole, so as to adjust the relative vertical state of different milling cutter heads and drilling assemblies in the upper and lower positions; S500: Milling work: S501: If a long-axis workpiece is to be milled, the three-axis adjustment component (8) drives the flip adjustment structure (9) and the extended milling system (10) to approach the long-axis workpiece to perform the milling operation; S502: If two short-axis workpieces are to be milled, the three-axis adjustment component (8) drives the flip adjustment structure (9) and the extended milling system (10) to move linearly along the central axis of the gap between the fixed spindle component (4) and the moving spindle component (6), and only moves forward and backward and left and right during the milling process; the motor (1007) is controlled to stop working to lock the cutter head component (1002), and the push rod (1006) is used to drive the adjustment shaft (1005) to move forward. The drive disc (1004) is rotated by the driving disc (1004) and the extrusion groove (10042) is engaged to cause the tool head mounting seat (1003) to move telescopically under the force of the limited sliding protrusion (10031), so as to expand and retract the tool head and the drilling assembly, thereby realizing the processing operation of milling the surface of the short-axis workpiece.

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