Horizontal five-axis turning and milling combined machining center

Abstract

The invention discloses a horizontal five-axis turning and milling combined machining center, and relates to the technical field of machining equipment.The horizontal five-axis turning and milling combined machining center comprises a workbench, a facing cutter structure is installed on one side of the top of the workbench, and the facing cutter structure and the workbench are fixedly installed through a fixing base; a milling cutter disc structure is installed on one side of the top of the workbench, a cutter machining manipulator structure is installed on the upper portion of the milling cutter disc structure, a main shaft structure is installed on the lower portion of the milling cutter disc structure through the fixing base, and an auxiliary main shaft structure is movably installed on the other side of the top of the workbench. At the moment, the machine tool must completely stop movement of a main shaft and a workbench, an operator needs to dismount a current cutter and then mount a next cutter, so that the actual cutting time of the machine tool is far lower than a theoretical value, and the efficiency of the whole equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing equipment, in particular to a horizontal five-axis turning and milling compound machining center. Background Art

[0002] High efficiency and high precision are the enduring goals of machining. With the continuous advancement of machining technology, traditional machining concepts are no longer able to meet the demands for speed, efficiency, and precision. Against this backdrop, composite machining technology has emerged. Generally speaking, composite machining refers to the ability to perform multiple processes or techniques on a single piece of machining equipment. Milling-turn machining has been one of the fastest-growing machining methods in this field in recent years.

[0003] Existing mill-turn machining centers require switching from a milling cutter to a turning tool during use. At this time, the machine tool must completely stop the movement of the spindle and worktable. The operator needs to remove the current tool and then install the next tool. This makes the actual cutting time of the machine tool far lower than the theoretical value, resulting in reduced overall equipment efficiency. To this end, we provide a horizontal five-axis mill-turn machining center. Summary of the Invention

[0004] The purpose of the present invention is to provide a horizontal five-axis turning-milling compound machining center to solve the problem proposed in the above background technology that the existing turning-milling compound machining center needs to switch from a milling cutter to a turning cutter during use. At this time, the machine tool must completely stop the movement of the spindle and worktable, and the operator needs to remove the current tool and then install the next tool, which makes the actual cutting time of the machine tool far lower than the theoretical value, resulting in reduced overall equipment efficiency.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a horizontal five-axis turning-milling compound machining center, comprising a workbench, a milling cutter disc structure installed on one side of the top of the workbench, the milling cutter disc structure fixedly installed to the workbench through a fixed base, a tool processing robot structure installed on the upper part of the milling cutter disc structure, a spindle structure installed on the lower part of the milling cutter disc structure through the fixed base, a sub-spindle structure movably installed on the other side of the top of the workbench, and the center point of the spindle structure and the center point of the sub-spindle structure are located on the same horizontal axis.

[0006] Preferably, the milling cutter disc structure includes a cutter disc bracket, which is fixedly connected to the top of the fixed base. The upper part of the cutter disc bracket is rotatably connected to a rotating cutter disc, which is placed at an angle. A reduction drive mechanism is installed on the rotating cutter disc, and multiple sets of tool clamps are installed on the upper part of the rotating cutter disc.

[0007] Preferably, the tool holders are distributed in a ring on the rotating cutter disc, and the tool holders are located at the edge of the rotating cutter disc. A tool is movably installed inside the tool holder, and the tool consists of a tool handle and a tool head. The placement direction of multiple groups of tool heads points to the center of the rotating cutter disc.

[0008] Preferably, the tool processing robot structure includes a robot base, which is located on the side of the top of the cutter disc bracket away from the rotating cutter disc, a rotating motor is installed on one side of the robot base, a cam rod is installed on the output shaft of the rotating motor, a rectangular through groove is provided inside the cam rod, a cam shaft is movably installed inside the rectangular through groove, a robot guide groove plate is installed on the upper part of one side of the robot base, a guide groove is provided inside the robot guide groove plate, and a pad is installed on the other side of the cam shaft through the guide groove.

[0009] Preferably, a tool holder connecting plate is installed at the lower part of one side of the manipulator base, and horizontal fixed sliders are installed at both ends of the other side of the tool holder connecting plate, and a linear guide rail is slidably connected to the horizontal fixed slider, and a vertical fixed slider is installed at the upper and lower parts of the other side of the linear guide rail, and a lifting guide rail is slidably connected to the vertical fixed slider, and the other side of the lifting guide rail is fixedly connected to the pad.

[0010] Preferably, a U-shaped fixing plate is installed on the other side of the pad, a pneumatic slip ring stator is installed on one side of the U-shaped fixing plate, a pneumatic slip ring rotor is installed on the other side of the pneumatic slip ring stator, a rotating plate is installed on the other side of the pneumatic slip ring rotor, the rotating plate is arranged in a triangle shape, cylinders are installed at both ends of the lower part of the other side of the rotating plate, a tool holder clamp is installed on the output shaft at the bottom of the cylinder, a cylinder slip ring connecting shaft is installed inside the U-shaped fixing plate, one side of the cylinder slip ring connecting shaft is fixedly connected to the pneumatic slip ring stator, and a pneumatic system is installed on the other side of the cylinder slip ring connecting shaft through the U-shaped fixing plate.

[0011] Preferably, the guide groove is arranged in an inverted L shape, a first bracket is installed on one side of the lower part of the guide groove through the manipulator guide groove plate, a first proximity switch is installed on the first bracket, a second bracket is installed on the other side of the upper part of the guide groove through the manipulator guide groove plate, a second proximity switch is installed on the second bracket, and a built-in damper is installed below the inside of the guide groove.

[0012] Preferably, a third bracket is installed on the side of the pad close to the rotating plate, a third proximity switch is installed on the third bracket, switch sensor plates are installed at both ends of the lower part of the side of the rotating plate away from the cylinder, and a tool magazine protective plate is installed on the top of the manipulator base.

[0013] Preferably, the spindle structure includes a first three-jaw chuck, which is fixedly connected to the fixed base and close to the direction of the sub-spindle structure. The sub-spindle structure includes a sub-spindle housing, and the sub-spindle housing is installed with a second three-jaw chuck close to the direction of the spindle structure. The first three-jaw chuck and the second three-jaw chuck are both composed of a jaw driving mechanism, a chuck body and a movable jaw. The chuck body is located on the output shaft of the jaw driving mechanism, and a movable jaw is slidably installed on the surface of the other side of the chuck body.

[0014] Preferably, slide rails are installed at both ends of the top of the workbench, and sliding blocks are slidably connected to the slide rails. The top of the sliding block is fixedly connected to the bottom of the sub-spindle box body, and a nut seat is installed at the bottom of the sub-spindle box body. The internal thread of the nut seat is connected to a screw, and a drive motor is installed on one side of the screw through the workbench, and a bearing seat is installed on the other side of the screw, and the bearing seat is fixedly connected to the workbench through a mounting seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention drives the cam rod to rotate by a rotary motor on the tool processing manipulator structure. The rectangular through-slot design can drive the cam shaft to move along the inverted L-shaped guide groove of the manipulator guide groove plate, thereby driving the pad and the U-shaped fixed plate to move, so that the tool holder clamp on the rotating plate grabs the corresponding tool, thereby realizing the automatic replacement of the tool. The rotating cutter head rotates to switch the tool to be replaced. The tool holder clamp cooperates with the cam rod and the guide groove to accurately grab the new tool along the preset trajectory. There is no need to stop the machine when changing tools. This solves the problem that the existing turning and milling composite machining center needs to switch from milling cutter to turning cutter when in use. At this time, the machine tool must completely stop the movement of the spindle and workbench. The operator needs to remove the current tool and then install the next tool. This makes the actual cutting time of the machine tool far lower than the theoretical value, resulting in a decrease in overall equipment efficiency.

[0016] (2) When the tool is replaced through the tool holder clamp, the camshaft contacts the second proximity switch, and the rotary motor stops working, avoiding the tool holder clamp moving and causing the tool replacement failure. When the tool holder clamp returns to the starting position, the camshaft contacts the first proximity switch, and the rotary motor stops working, avoiding damage to the camshaft. The rotary motor can be controlled by setting the first and second proximity switches to effectively limit the position of the pad. The third proximity switch and the switch sensor can be used to accurately locate the position of the rotary plate and the tool holder clamp, ensuring the accuracy of tool change and avoiding errors and downtime caused by manual tool change.

[0017] (3) The workpiece is clamped and fixed by the first three-jaw chuck of the main spindle structure, and the movable jaw is driven to move toward the center by the jaw driving mechanism to achieve the clamping and fixing of the workpiece, so as to facilitate the milling process of the workpiece. The second three-jaw chuck of the sub-spindle structure can be moved horizontally to a suitable position through a slide rail and a lead screw driven by a drive motor to clamp the other end of the processed long workpiece, so as to facilitate the subsequent turning process of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 The overall structure of the present invention is shown in FIG. Figure 3 ; Figure 4 It is a schematic diagram of the structure of the present invention from above; Figure 5 It is a left side cross-sectional structural schematic diagram of the present invention; Figure 6 It is a partial structural schematic diagram of the present invention; In the figure: 1. workbench; 2. milling cutter structure; 3. tool processing robot structure; 4. spindle structure; 5. sub-spindle structure; 6. fixed base; 7. cutter bracket; 8. reduction drive mechanism; 9. rotating cutter; 10. tool holder; 11. tool; 12. tool holder; 13. tool head; 14. robot base; 15. rotating motor; 16. cam rod; 17. rectangular through groove; 18. cam shaft; 19. robot guide groove plate; 20. guide groove; 21. pad; 22. tool holder connecting plate; 23. horizontal fixed slide; 24. linear guide rail; 25. vertical fixed slide; 26. lifting guide rail; 27. U-shaped fixed plate; 28. pneumatic slip ring stator; 29. Pneumatic slip ring rotor; 30. Rotating plate; 31. Cylinder; 32. Tool holder clamp; 33. Cylinder slip ring connecting shaft; 34. Pneumatic system; 35. First bracket; 36. First proximity switch; 37. Second bracket; 38. Second proximity switch; 39. Built-in damper; 40. Third bracket; 41. Third proximity switch; 42. Switch sensor plate; 43. Tool magazine protection plate; 44. First three-jaw chuck; 45. Jaw drive mechanism; 46. Chuck body; 47. Movable jaw; 48. Slide rail; 49. Sliding block; 50. Sub-spindle housing; 51. Nut seat; 52. Screw; 53. Drive motor; 54. Mounting seat; 55. Bearing seat; 56. Second three-jaw chuck. 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 1-6 The present invention provides an embodiment: a horizontal five-axis turning and milling compound machining center, including a workbench 1, a milling cutter disc structure 2 is installed on one side of the top of the workbench 1, the milling cutter disc structure 2 is fixedly installed to the workbench 1 through a fixed base 6, a tool processing robot structure 3 is installed on the upper part of the milling cutter disc structure 2, a main shaft structure 4 is installed on the lower part of the milling cutter disc structure 2 through the fixed base 6, and a sub-spindle structure 5 is movably installed on the other side of the top of the workbench 1, and the center point of the main shaft structure 4 and the center point of the sub-spindle structure 5 are located on the same horizontal axis.

[0021] See also Figure 1 The milling cutter disc structure 2 includes a cutter disc bracket 7, which is fixedly connected to the top of the fixed base 6. The upper part of the cutter disc bracket 7 is rotatably connected to a rotating cutter disc 9. The rotating cutter disc 9 is placed at an angle. A reduction drive mechanism 8 is installed on the rotating cutter disc 9. Multiple sets of tool clamps 10 are installed on the upper part of the rotating cutter disc 9.

[0022] See also Figure 1 The tool holders 10 are distributed in a ring on the rotating cutter disc 9, and the tool holders 10 are located at the edge of the rotating cutter disc 9. A tool 11 is movably installed inside the tool holder 10. The tool 11 consists of a tool handle 12 and a tool head 13. The placement direction of the multiple groups of tool heads 13 points to the center of the rotating cutter disc 9.

[0023] The rotating cutter disc 9 of the milling cutter disc structure 2 rotates driven by the reduction drive mechanism 8, and the tool 11 is fixed by the tool clamp 10 distributed in an annular shape on the edge. The layout of the tool head 13 pointing to the center of the circle ensures that the tool 11 is accurately aligned with the workpiece on the spindle structure 4.

[0024] See also Figure 1 and Figure 4 The tool processing robot structure 3 includes a robot base 14, which is located on the top of the cutter disc bracket 7 away from the rotating cutter disc 9. A rotating motor 15 is installed on one side of the robot base 14, and a cam rod 16 is installed on the output shaft of the rotating motor 15. A rectangular through groove 17 is provided inside the cam rod 16, and a cam shaft 18 is movably installed inside the rectangular through groove 17. A robot guide groove plate 19 is installed on the upper part of one side of the robot base 14, and a guide groove 20 is provided inside the robot guide groove plate 19. A pad 21 is installed on the other side of the cam shaft 18 through the guide groove 20.

[0025] See also Figure 5A tool holder connecting plate 22 is installed at the lower part of one side of the manipulator base 14, and a horizontal fixed slider 23 is installed at both ends of the other side of the tool holder connecting plate 22. A linear guide rail 24 is slidably connected to the horizontal fixed slider 23, and a vertical fixed slider 25 is installed at the upper and lower parts of the other side of the linear guide rail 24. A lifting guide rail 26 is slidably connected to the vertical fixed slider 25, and the other side of the lifting guide rail 26 is fixedly connected to the pad 21.

[0026] The tool processing robot structure 3 drives the cam rod 16 to rotate via a rotating motor 15. The rectangular through-slot 17 design drives the cam shaft 18 to move along the inverted L-shaped guide groove 20 of the robot guide groove plate 19. The lateral movement of the pad 21 is achieved through the lateral fixed slider 23 and the linear guide rail 24. The vertical movement of the pad 21 is achieved through the mutual cooperation of the vertical fixed slider 25 and the lifting guide rail 26, thereby driving the pad 21 and the U-shaped fixed plate 27 to move, so that the tool holder clamp 32 on the rotating plate 30 grabs the corresponding tool 11, thereby realizing the automated replacement of the tool 11. The rotating cutter disc 9 rotates to switch the tool 11 to be replaced. The tool holder clamp 32, through the mutual cooperation of the cam rod 16 and the guide groove 20, accurately grabs the new tool 11 along the preset trajectory, and there is no need to stop the machine when changing tools.

[0027] See also Figure 1 and Figure 6 A U-shaped fixing plate 27 is installed on the other side of the pad 21, a pneumatic slip ring stator 28 is installed on one side of the U-shaped fixing plate 27, a pneumatic slip ring rotor 29 is installed on the other side of the pneumatic slip ring stator 28, a rotating plate 30 is installed on the other side of the pneumatic slip ring rotor 29, the rotating plate 30 is set in a triangle shape, a cylinder 31 is installed at both ends of the lower part of the other side of the rotating plate 30, a tool holder clamp 32 is installed on the output shaft at the bottom of the cylinder 31, a cylinder slip ring connecting shaft 33 is installed inside the U-shaped fixing plate 27, one side of the cylinder slip ring connecting shaft 33 is fixedly connected to the pneumatic slip ring stator 28, and a pneumatic system 34 is installed on the other side of the cylinder slip ring connecting shaft 33 through the U-shaped fixing plate 27.

[0028] The pneumatic slip ring stator 28 is connected to the pneumatic system 34 through the cylinder slip ring connecting shaft 33, and cooperates with the pneumatic slip ring rotor 29 to supply air to the cylinder 31, ensuring that the air path is not entangled when the rotating plate 30 drives the cylinder 31 and the tool handle clamp 32 to rotate, so as to facilitate the stable grasping and release of the tool 11 through the tool handle clamp 32.

[0029] See also Figure 4 and Figure 6The guide groove 20 is set to an inverted L shape, and a first bracket 35 is installed on one side of the lower part of the guide groove 20 through the manipulator guide groove plate 19, and a first proximity switch 36 is installed on the first bracket 35. A second bracket 37 is installed on the other side of the upper part of the guide groove 20 through the manipulator guide groove plate 19, and a second proximity switch 38 is installed on the second bracket 37. A built-in damper 39 is installed at the bottom of the guide groove 20.

[0030] See also Figure 6 A third bracket 40 is installed on the side of the pad 21 close to the rotating plate 30, and a third proximity switch 41 is installed on the third bracket 40. Switch sensor sheets 42 are installed at both ends of the lower part of the side of the rotating plate 30 away from the cylinder 31, and a tool magazine protective plate 43 is installed on the top of the manipulator base 14.

[0031] When the tool 11 is replaced via the tool holder clamp 32, the camshaft 18 contacts the second proximity switch 38, causing the rotary motor 15 to stop, preventing the tool holder clamp 32 from moving and causing a failure in tool replacement. When the tool holder clamp 32 returns to its starting position, the camshaft 18 contacts the first proximity switch 36, causing the rotary motor 15 to stop, preventing damage to the camshaft 18. The first and second proximity switches 36 and 38 can be used to control the rotary motor 15 to effectively limit the position of the pad 21. The third proximity switch 41 and the switch sensor 42 cooperate to precisely locate the rotating plate 30 and the tool holder clamp 32, ensuring tool change accuracy and avoiding errors and downtime associated with manual tool changes.

[0032] See also Figure 3 The spindle structure 4 includes a first three-jaw chuck 44, which is fixedly connected to the fixed base 6 and is close to the direction of the sub-spindle structure 5. The sub-spindle structure 5 includes a sub-spindle housing 50. The sub-spindle housing 50 is installed with a second three-jaw chuck 56 close to the direction of the spindle structure 4. The first three-jaw chuck 44 and the second three-jaw chuck 56 are both composed of a jaw driving mechanism 45, a chuck body 46 and a movable jaw 47. The chuck body 46 is located on the output shaft of the jaw driving mechanism 45, and the surface of the other side of the chuck body 46 is slidably installed with a movable jaw 47.

[0033] See also Figure 1 and Figure 2 , slide rails 48 are installed at both ends of the top of the workbench 1, and sliding blocks 49 are slidably connected to the slide rails 48. The top of the sliding block 49 is fixedly connected to the bottom of the sub-spindle box 50, and a nut seat 51 is installed at the bottom of the sub-spindle box 50. The internal thread of the nut seat 51 is connected to the lead screw 52. A drive motor 53 is installed on one side of the lead screw 52 through the workbench 1, and a bearing seat 55 is installed on the other side of the lead screw 52. The bearing seat 55 is fixedly connected to the workbench 1 through the mounting seat 54.

[0034] The workpiece is clamped and fixed by the first three-jaw chuck 44 of the main spindle structure 4, and the movable jaw 47 is driven toward the center by the jaw drive mechanism 45 to clamp and fix the workpiece, so as to facilitate milling processing of the workpiece. The second three-jaw chuck 56 of the sub-spindle structure 5 can be moved horizontally to a suitable position through the slide rail 48 and the screw 52 driven by the drive motor 53 to clamp the other end of the processed long workpiece, so as to facilitate subsequent turning processing of the workpiece.

[0035] 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 horizontal five-axis turning and milling machining center, comprising a workbench (1), characterized in that: A milling cutter disc structure (2) is installed on one side of the top of the workbench (1), and the milling cutter disc structure (2) is fixedly installed with the workbench (1) through a fixed base (6). A tool processing robot structure (3) is installed on the upper part of the milling cutter disc structure (2), and a main spindle structure (4) is installed on the lower part of the milling cutter disc structure (2) through the fixed base (6). A sub-spindle structure (5) is movably installed on the other side of the top of the workbench (1), and the center point of the main spindle structure (4) and the center point of the sub-spindle structure (5) are located on the same horizontal axis.

2. A horizontal five-axis turning-milling machining center according to claim 1, characterized in that: The milling cutter disc structure (2) includes a cutter disc bracket (7), the cutter disc bracket (7) is fixedly connected to the top of the fixed base (6), the upper part of the cutter disc bracket (7) is rotatably connected to a rotating cutter disc (9), the rotating cutter disc (9) is placed at an angle, a reduction drive mechanism (8) is installed on the rotating cutter disc (9), and a plurality of tool clamps (10) are installed on the upper part of the rotating cutter disc (9).

3. A horizontal five-axis turning-milling machining center according to claim 2, characterized in that: The tool holder (10) is distributed in a ring shape on the rotating cutter disc (9), and the tool holder (10) is located at the edge of the rotating cutter disc (9). A tool (11) is movably installed inside the tool holder (10), and the tool (11) is composed of a tool handle (12) and a tool head (13). The placement direction of multiple groups of the tool heads (13) points to the center of the rotating cutter disc (9).

4. A horizontal five-axis turning-milling machining center according to claim 3, characterized in that: The tool processing robot structure (3) includes a robot base (14), the robot base (14) is located on the top of the cutter disc bracket (7) away from the rotating cutter disc (9), a rotating motor (15) is installed on one side of the robot base (14), a cam rod (16) is installed on the output shaft of the rotating motor (15), a rectangular through groove (17) is provided inside the cam rod (16), a cam shaft (18) is movably installed inside the rectangular through groove (17), a robot guide slot plate (19) is installed on the upper part of one side of the robot base (14), a guide slot (20) is provided inside the robot guide slot plate (19), and a pad (21) is installed on the other side of the cam shaft (18) through the guide slot (20).

5. The horizontal five-axis turning-milling machining center according to claim 4, characterized in that: A tool holder connecting plate (22) is installed at the lower part of one side of the manipulator base (14), and horizontal fixed sliders (23) are installed at both ends of the other side of the tool holder connecting plate (22). A linear guide rail (24) is slidably connected to the horizontal fixed slider (23). A vertical fixed slider (25) is installed at the upper and lower parts of the other side of the linear guide rail (24), and a lifting guide rail (26) is slidably connected to the vertical fixed slider (25). The other side of the lifting guide rail (26) is fixedly connected to the pad (21).

6. The horizontal five-axis turning-milling machining center according to claim 5, characterized in that: A U-shaped fixing plate (27) is installed on the other side of the backing plate (21), a pneumatic slip ring stator (28) is installed on one side of the U-shaped fixing plate (27), a pneumatic slip ring rotor (29) is installed on the other side of the pneumatic slip ring stator (28), a rotating plate (30) is installed on the other side of the pneumatic slip ring rotor (29), the rotating plate (30) is set in a triangular shape, a cylinder (31) is installed at both ends of the lower part of the other side of the rotating plate (30), a tool holder clamp (32) is installed on the output shaft at the bottom of the cylinder (31), a cylinder slip ring connecting shaft (33) is installed inside the U-shaped fixing plate (27), one side of the cylinder slip ring connecting shaft (33) is fixedly connected to the pneumatic slip ring stator (28), and the other side of the cylinder slip ring connecting shaft (33) is installed with a pneumatic system (34) through the U-shaped fixing plate (27).

7. The horizontal five-axis turning-milling machining center according to claim 6, characterized in that: The guide groove (20) is configured to be in an inverted L-shape. A first bracket (35) is mounted on one side of a lower portion of the guide groove (20) through a manipulator guide groove plate (19), and a first proximity switch (36) is mounted on the first bracket (35). A second bracket (37) is mounted on the other side of an upper portion of the guide groove (20) through the manipulator guide groove plate (19), and a second proximity switch (38) is mounted on the second bracket (37). A built-in damper (39) is mounted below the interior of the guide groove (20).

8. The horizontal five-axis turning-milling machining center according to claim 7, characterized in that: A third bracket (40) is installed on a side of the backing plate (21) close to the rotating plate (30), and a third proximity switch (41) is installed on the third bracket (40). Switch sensing sheets (42) are installed at both ends of the lower part of the side of the rotating plate (30) away from the cylinder (31), and a tool magazine protective plate (43) is installed on the top of the manipulator base (14).

9. The horizontal five-axis turning-milling machining center according to claim 8, characterized in that: The spindle structure (4) includes a first three-jaw chuck (44), which is fixedly connected to the fixed base (6) and is close to the direction of the sub-spindle structure (5). The sub-spindle structure (5) includes a sub-spindle housing (50), and the sub-spindle housing (50) is installed with a second three-jaw chuck (56) close to the direction of the spindle structure (4). The first three-jaw chuck (44) and the second three-jaw chuck (56) are both composed of a jaw driving mechanism (45), a chuck body (46) and a movable jaw (47). The chuck body (46) is located on the output shaft of the jaw driving mechanism (45), and the surface of the other side of the chuck body (46) is slidably installed with a movable jaw (47).

10. The horizontal five-axis turning-milling machining center according to claim 9, characterized in that: Slide rails (48) are installed at both ends of the top of the workbench (1), and a sliding block (49) is slidably connected to the slide rails (48). The top of the sliding block (49) is fixedly connected to the bottom of the sub-spindle housing (50). A nut seat (51) is installed at the bottom of the sub-spindle housing (50), and the internal thread of the nut seat (51) is connected to a screw (52). A drive motor (53) is installed on one side of the screw (52) through the workbench (1), and a bearing seat (55) is installed on the other side of the screw (52). The bearing seat (55) is fixedly connected to the workbench (1) through a mounting seat (54).

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