Turning and milling combined machining machine tool with double main shafts, swinging heads and lower tool turrets

Abstract

The invention discloses a double-spindle swing head turning and milling combined machine tool with a lower tool turret, and relates to the technical field of lathe machining. The double-spindle swing head turning and milling combined machine tool comprises a machine table, a displacement assembly is installed above the machine table, a cutter head assembly is installed at one end of the displacement assembly, and a second turning and milling spindle is installed at the other end of the displacement assembly; a cutter tower assembly is installed between the second turning and milling main shaft and the cutter head assembly, the cutter head assembly comprises a cutter head support, a rotatable cutter head main body is installed above the cutter head support, a plurality of cutter clamps which are annularly arranged at intervals are installed on the outer wall of the cutter head main body, a first turning and milling main shaft is installed below the cutter head main body, and a second turning and milling main shaft is installed below the first turning and milling main shaft. The tool turret assembly comprises a tool turret top frame, and a rotatable tool turret body is installed on the outer wall of the side, close to the second turning and milling main shaft, of the tool turret top frame. The problems that an existing turn-milling machine tool adopts a single spindle, turn-milling modes need to be frequently switched, consequently, machining continuity is poor, efficiency is low, a turn-milling tool is fixed to an independent module, and the tool capacity is fixed and cannot be expanded are solved.

Description

Technical Field

[0001] The invention relates to the technical field of lathe processing, in particular to a turning and milling compound processing machine tool with a double-spindle swing head and a lower turret. Background Art

[0002] Machine tools, also known as machine tools or machine tools, are used to process metal or other material workpieces to achieve the desired geometry, dimensional accuracy, and surface quality. As core equipment in the machinery industry, their processing capabilities directly impact the production technology level of mechanical products. Turning and milling machines are a type of machine tool that integrates turning and milling functions.

[0003] Publication number: CN110052832A, named: "Turning and milling compound processing machine tool", which includes a frame, a workpiece mounting turntable, a transverse moving mechanism, a longitudinal moving mechanism, a turning tool moving module, a milling cutter moving module, a turning tool mounting seat and a milling cutter mounting seat. A processing area is provided on the frame, the transverse moving mechanism is transversely mounted on the frame and is located in the processing area, the longitudinal moving mechanism is longitudinally mounted on the driving end of the transverse moving mechanism, and the workpiece mounting turntable is rotatably mounted on the driving end of the longitudinal moving mechanism; the turning tool moving module and the milling cutter moving module are both vertically arranged side by side on the frame, the turning tool mounting seat is mounted on the driving end of the turning tool moving module and is located in the processing area, and the milling cutter mounting seat is mounted on the driving end of the milling cutter moving module and is located in the processing area. During processing, turning and milling are used alternately to achieve the purpose of one-time processing and forming of the workpiece, and effectively avoid the phenomenon that the processing error becomes larger due to the secondary installation of the tool. Existing turning-milling compound machining centers have the following defects during use: 1. They use a single spindle and require frequent switching of turning-milling modes, resulting in poor machining continuity and low efficiency; 2. The turning and milling tools are fixed in an independent module, and the tool capacity is fixed and cannot be expanded. Therefore, a turning-milling compound machining center with a dual-spindle swing head and a lower turret is provided. Summary of the Invention

[0004] The purpose of the present invention is to provide a dual-spindle swing head with a lower turret turning and milling compound machining machine to solve the following defects of the existing turning and milling compound machining machine proposed in the above background technology during use: 1. It uses a single spindle and requires frequent switching of the turning and milling mode, resulting in poor machining continuity and low efficiency; 2. The turning and milling tools are fixed in an independent module, and the tool capacity is fixed and cannot be expanded.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dual-spindle swing head with a lower turret turning and milling composite machining machine tool, comprising a machine platform, a displacement assembly is installed above the machine platform, a cutter disc assembly is installed at one end of the displacement assembly, a second turning and milling spindle is installed at the other end of the displacement assembly, a turret assembly is installed between the second turning and milling spindle and the cutter disc assembly, the cutter disc assembly comprises a cutter disc bracket, a rotatable cutter disc body is installed above the cutter disc bracket, a plurality of tool clamps arranged in an annular spaced relationship are installed on the outer wall of the cutter disc body, a first turning and milling spindle is installed below the cutter disc body, the turret assembly comprises a turret top frame, a rotatable cutter turret body is installed on the outer wall of the side of the turret top frame close to the second turning and milling spindle, a drive motor is installed at one end of the turret body, and a plurality of assembly grooves arranged in an annular spaced relationship are provided on the outer wall of the turret body.

[0006] Preferably, a reduction drive mechanism is also installed above the cutter disc bracket, a transverse movement assembly is installed at the output end of the reduction drive mechanism, a rotating plate is installed above the cutter disc body, a rotating drive member is installed at one end of the rotating plate, two groups of spaced-apart pneumatic clamps are installed on the outer wall of the rotating plate, and the rotating plate is installed in combination with the transverse movement assembly.

[0007] Preferably, the displacement assembly includes a first screw and a second screw, a screw motor is installed at one end of the first screw and the second screw, a first slide rail is installed on one side of the first screw and the second screw, and a screw sleeve is installed on the outer wall of the first screw and the second screw.

[0008] Preferably, a turret base frame is installed below the turret top frame, two sets of second slide rails are symmetrically installed on the upper surface of the turret base frame, and a second slider is installed on the outer wall of the second slide rail. The turret top frame slides and moves on the second slide rail through the second slider.

[0009] Preferably, a first sliding block is installed below the turret base frame, and the turret base frame slides and displaces on the first slide rail through the first sliding block, and the first lead screw is assembled and installed with the turret base frame through a lead screw sleeve.

[0010] Preferably, the second turning and milling spindle includes a spindle frame, a plurality of third sliders are installed below the spindle frame, the spindle frame is slidably connected to the first slide rail through the third sliders, and the second lead screw is connected to the spindle frame through a lead screw sleeve.

[0011] Preferably, an electric drive assembly is installed above the main spindle frame, and a clamping platform is installed at the output end of the electric drive assembly.

[0012] Preferably, a chip collecting assembly is installed at one end of the turret assembly, the chip collecting assembly includes a guide channel, the turret top frame is an inclined platform, and one end of the turret top frame is inclined toward the guide channel.

[0013] Preferably, an air duct is installed at one end of the guide channel, an air nozzle is installed at the end of the air duct close to the guide channel, a blanking port is installed at the other end of the air duct, and a fan drive component is installed on the outer wall of the end of the air duct close to the blanking port.

[0014] Preferably, a collecting vehicle is installed below the drop opening.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention adopts a dual-spindle design, and performs turning and milling by means of a first turning and milling spindle and a second turning and milling spindle. When the first turning and milling spindle is turning, the second turning and milling spindle can perform synchronous milling. The workpiece can be transferred between the dual spindles to avoid repeated positioning errors. The first spindle is integrated under the cutter head assembly, and the turret assembly serves as a mobile tool library to dynamically supply tools between the dual spindles, and is precisely guided and displaced by the displacement assembly. Specifically, the deceleration drive mechanism is a motor and a reducer. Through this structure, the transverse movement component is driven to perform lateral displacement to adjust the position of the pneumatic clamp to facilitate the clamping operation. The rotary drive component is also a motor to drive the rotating plate to rotate. Two sets of pneumatic clamps are installed on the rotating plate. The pneumatic clamps are driven by cylinders to perform clamping operations. The setting of two sets of pneumatic clamps can clamp two tools at one time. Through this structure, it is convenient to perform tool changing operations on the first turning and milling spindle to achieve the purpose of rapid replacement.

[0016] (2) In the present invention, the pre-installation of multiple sets of cutting tools is supported by the setting of the annular assembly groove. The bottom frame of the turret moves laterally along the first slide rail, and the top frame of the turret moves vertically along the second slide rail, thereby improving the flexibility of the turret. The driving motor controls the rotation of the turret body, which facilitates the realization of turning, milling and tool changing processes. The above structure can support the continuous processing of multiple processes of complex workpieces, reduce the equipment downtime for tool changing, and improve processing efficiency. Specifically, when the lead screw sleeve makes a linear displacement on the first lead screw, it will drive the upper turret base frame to move together, so that the turret assembly has a displacement function. During the displacement process, the turret base frame slides and displaces on the first slide rail through the first slider to improve the displacement stability. In addition, the turret top frame can also drive the turret top frame to slide and displace on the second slide rail by installing another lead screw drive component, so that it can perform displacement operations in the left and right, front and back directions. The flexibility of the overall turning and milling process is effectively improved. When the lead screw sleeve moves on the second lead screw, it drives the spindle frame to move. The position of the spindle frame is adjusted by displacement, which facilitates turning and milling operations with the turret assembly.

[0017] (3) In the present invention, the impurities on the top frame of the turret are tilted and guided into the guide channel. The fan is driven by the fan driving member to pull the impurities from the air nozzle into the air duct, and finally fall downward from the drop port into the collection vehicle for collection, thereby achieving the effect of collecting waste chips at the machine tool, effectively improving the environmental protection and functionality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the cutter head assembly of the present invention; Figure 3 This is a schematic structural diagram of the cutter head assembly of the present invention from another perspective; Figure 4 This is a schematic structural diagram of the turret assembly of the present invention from another perspective; Figure 5 This is a schematic structural diagram of the second turning and milling spindle of the present invention; Figure 6 This is a schematic structural diagram of the second turning and milling spindle of the present invention from another perspective; Figure 7 It is a schematic structural diagram of the displacement assembly of the present invention; In the figure: 1. Machine table; 2. Cutter head assembly; 201. Cutter head body; 202. Cutter clamp; 203. Speed ​​reduction drive mechanism; 204. Rotating plate; 205. Pneumatic clamp; 206. First turning and milling spindle; 207. Cutter head bracket; 208. Transverse movement assembly; 209. Rotary drive member; 3. Displacement assembly; 301. First lead screw; 302. Second lead screw; 303. Lead screw motor; 304. Lead screw sleeve; 305. First slide rail; 4. Turret assembly; 401. Turret bottom Frame; 402, first slide; 403, second slide rail; 404, second slide; 405, turret top frame; 406, drive motor; 407, turret body; 408, assembly slot; 5, second turning and milling spindle; 501, spindle frame; 502, third slide; 503, electric drive assembly; 504, clamping table; 6, chip collection assembly; 601, air duct; 602, air nozzle; 603, blanking port; 604, fan drive; 605, collection car; 606, guide channel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figure 1-7The present invention provides an embodiment of a dual-spindle swing head with a lower turret turning and milling composite machining machine, comprising a machine platform 1, a displacement component 3 is installed above the machine platform 1, a cutter head component 2 is installed at one end of the displacement component 3, a second turning and milling spindle 5 is installed at the other end of the displacement component 3, a turret component 4 is installed between the second turning and milling spindle 5 and the cutter head component 2, the cutter head component 2 includes a cutter head bracket 207, a rotatable cutter head body 201 is installed above the cutter head bracket 207, and the outer surface of the cutter head body 201 is provided with a plurality of rotatable cutter heads. A plurality of annularly spaced tool holders 202 are installed on the wall, a first milling spindle 206 is installed below the cutter head body 201, and a turret assembly 4 includes a turret top frame 405. A rotatable turret body 407 is installed on the outer wall of the turret top frame 405 close to the second milling spindle 5. A drive motor 406 is installed at one end of the turret body 407. A plurality of annularly spaced assembly grooves 408 are provided on the outer wall of the turret body 407. Specifically, a turret support 207 is also installed above the cutter head support 207. The reduction drive mechanism 203 is provided with a transverse moving assembly 208 at the output end thereof, a rotating plate 204 is provided above the cutter head body 201, a rotating driving member 209 is provided at one end of the rotating plate 204, two groups of pneumatic clamps 205 arranged at intervals are provided on the outer wall of the rotating plate 204, and the rotating plate 204 is combined with the transverse moving assembly 208 for installation; in the above structure, the reduction drive mechanism 203 is a motor and a reducer, and through this structure, the transverse moving assembly 208 is driven to perform transverse movement. The pneumatic clamp 205 is displaced to adjust the position of the pneumatic clamp 205 for easy clamping operation. The rotating drive part 209 is also a motor, which is used to drive the rotating plate 204 to rotate. Two groups of pneumatic clamps 205 are installed on the rotating plate 204. The pneumatic clamp 205 is driven by a cylinder to perform a clamping operation. The two groups of pneumatic clamps 205 are set up to clamp two tools at one time. Through this structure, it is convenient to perform tool changing operations on the first turning and milling spindle 206, thereby achieving the purpose of rapid replacement.

[0021] See also Figure 7 The displacement assembly 3 includes a first lead screw 301 and a second lead screw 302, and a screw motor 303 is installed at one end of the first lead screw 301 and the second lead screw 302, and a first slide rail 305 is installed on one side of the first lead screw 301 and the second lead screw 302, and a screw sleeve 304 is installed on the outer wall of the first lead screw 301 and the second lead screw 302; in the above structure, the displacement assembly 3 is divided into a first lead screw 301 and a second lead screw 302, and the two groups of lead screw parts are respectively used to drive different devices to move, and the screw motor 303 is set to drive the screw sleeve 304 at each position to perform a linear displacement on the corresponding lead screw. The setting of the first slide rail 305 on both sides can improve the displacement stability.

[0022] See also Figure 3 、 Figure 4The turret base frame 401 is installed below the turret top frame 405, and two sets of second slide rails 403 are installed symmetrically on the upper surface of the turret base frame 401. The second slider 404 is installed on the outer wall of the second slide rail 403. The turret top frame 405 slides on the second slide rail 403 through the second slider 404. The first slider 402 is installed below the turret base frame 401, and the turret base frame 401 slides on the first slide rail 305 through the first slider 402. The first screw 301 is assembled with the turret base frame 401 through the screw sleeve 304. In the above structure, the screw slide When the sleeve 304 is linearly displaced on the first lead screw 301, it will drive the upper turret base frame 401 to move together, so that the turret assembly 4 has a displacement function. During the displacement process, the turret base frame 401 slides and displaces on the first slide rail 305 through the first slider 402 to improve the displacement stability. In addition, the turret top frame 405 can also drive the turret top frame 405 to slide and displace on the second slide rail 403 by installing another lead screw drive component, so that it can perform displacement operations in the left, right, front and back directions, and the flexibility of the overall turning and milling process is effectively improved.

[0023] See also Figure 5 、 Figure 6 The second turning and milling spindle 5 includes a spindle frame 501, and a plurality of third sliders 502 are installed under the spindle frame 501. The spindle frame 501 is slidably connected to the first slide rail 305 through the third slider 502, and the second lead screw 302 is connected to the spindle frame 501 through the lead screw sleeve 304. An electric drive component 503 is installed above the spindle frame 501, and a clamping table 504 is installed at the output end of the electric drive component 503; in the above structure, the clamping table 504 is driven by the electric drive component 503 to rotate, and the clamping table 504 is a three-jaw chuck for firmly limiting the clamped object placed in the middle. When the lead screw sleeve 304 moves on the second lead screw 302, it drives the spindle frame 501 to move, and the position of the spindle frame 501 is adjusted by displacement, which is convenient for turning and milling operations with the turret assembly 4.

[0024] See also Figure 7, a chip collection assembly 6 is installed at one end of the turret assembly 4, and the chip collection assembly 6 includes a guide channel 606. The turret top frame 405 is an inclined platform, and one end of the turret top frame 405 is inclined toward the guide channel 606. An air duct 601 is installed at one end of the guide channel 606, and an air nozzle 602 is installed at one end of the air duct 601 close to the guide channel 606. A blanking port 603 is installed at the other end of the air duct 601, and a fan driving component 604 is installed on the outer wall of one end of the air duct 601 close to the blanking port 603, and a collection vehicle 605 is installed below the blanking port 603; in the above structure, the impurities at the turret top frame 405 are tilted and guided into the guide channel 606, and the fan is driven by the fan driving component 604 to pull the impurities from the air nozzle 602 into the air duct 601, and finally fall downward from the blanking port 603 into the collection vehicle 605 for collection, thereby collecting waste chips at the machine tool.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A dual-spindle swing head with a lower turret turning and milling machine tool, comprising a machine platform (1), characterized in that: A displacement assembly (3) is installed above the machine platform (1), a cutterhead assembly (2) is installed at one end of the displacement assembly (3), a second turning and milling spindle (5) is installed at the other end of the displacement assembly (3), a turret assembly (4) is installed between the second turning and milling spindle (5) and the cutterhead assembly (2), the cutterhead assembly (2) comprises a cutterhead bracket (207), a rotatable cutterhead body (201) is installed above the cutterhead bracket (207), and several A tool holder (202) is arranged in an annular spaced pattern, a first turning and milling spindle (206) is installed below the cutter disc body (201), the turret assembly (4) includes a turret top frame (405), a rotatable turret body (407) is installed on the outer wall of the turret top frame (405) on one side close to the second turning and milling spindle (5), a drive motor (406) is installed at one end of the turret body (407), and a plurality of assembly grooves (408) arranged in an annular spaced pattern are provided on the outer wall of the turret body (407).

2. The dual-spindle swing head and lower turret turning and milling machine tool according to claim 1, characterized in that: A reduction drive mechanism (203) is also installed above the cutter disc bracket (207), and a transverse movement assembly (208) is installed at the output end of the reduction drive mechanism (203). A rotating plate (204) is installed above the cutter disc body (201), and a rotating drive member (209) is installed at one end of the rotating plate (204). Two groups of spaced-apart pneumatic clamps (205) are installed on the outer wall of the rotating plate (204), and the rotating plate (204) and the transverse movement assembly (208) are installed in combination.

3. The dual-spindle swing head and lower turret turning and milling machine tool according to claim 1, characterized in that: The displacement assembly (3) comprises a first lead screw (301) and a second lead screw (302), one end of each of the first lead screw (301) and the second lead screw (302) is mounted with a lead screw motor (303), one side of each of the first lead screw (301) and the second lead screw (302) is mounted with a first slide rail (305), and the outer walls of each of the first lead screw (301) and the second lead screw (302) are mounted with a lead screw sleeve (304).

4. The dual-spindle swing head and lower turret turning and milling machine tool according to claim 3, characterized in that: A turret base frame (401) is installed below the turret top frame (405), two sets of second slide rails (403) are symmetrically installed on the upper surface of the turret base frame (401), and second sliders (404) are installed on the outer walls of the second slide rails (403). The turret top frame (405) slides and moves on the second slide rails (403) through the second sliders (404).

5. The dual-spindle swing head and lower turret turning and milling machine tool according to claim 4, characterized in that: A first slider (402) is installed below the turret base frame (401), and the turret base frame (401) slides and displaces on the first slide rail (305) via the first slider (402), and the first lead screw (301) is assembled and installed with the turret base frame (401) via a lead screw sleeve (304).

6. The dual-spindle swing head and lower turret turning and milling machine tool according to claim 3, characterized in that: The second turning and milling spindle (5) includes a spindle frame (501), a plurality of third sliders (502) are installed below the spindle frame (501), the spindle frame (501) is slidably connected to the first slide rail (305) through the third sliders (502), and the second lead screw (302) is connected to the spindle frame (501) through a lead screw sleeve (304).

7. The dual-spindle swing head and lower turret turning and milling machine tool according to claim 6, characterized in that: An electric drive assembly (503) is installed above the main shaft frame (501), and a clamping platform (504) is installed at the output end of the electric drive assembly (503).

8. The dual-spindle swing head and lower turret turning and milling machine tool according to claim 7, characterized in that: A chip collecting assembly (6) is installed at one end of the turret assembly (4), and the chip collecting assembly (6) includes a guide channel (606). The turret top frame (405) is an inclined platform, and one end of the turret top frame (405) is inclined toward the guide channel (606).

9. The dual-spindle swing head and lower turret turning and milling machine tool according to claim 8, characterized in that: An air duct (601) is installed at one end of the guide channel (606), an air nozzle (602) is installed at one end of the air duct (601) close to the guide channel (606), a blanking port (603) is installed at the other end of the air duct (601), and a fan driving component (604) is installed on the outer wall of one end of the air duct (601) close to the blanking port (603).

10. The dual-spindle swing head and lower turret turning and milling machine tool according to claim 9, characterized in that: A material collecting vehicle (605) is installed below the drop opening (603).

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