Vertical turning, milling and grinding integrated combined machining center

Abstract

The invention relates to the technical field of machining centers, in particular to a vertical turning, milling and grinding integrated combined machining center which comprises a base, two first electric sliding rails, a portal frame, a second electric sliding rail, a controller, a combined machining unit, an eccentric rotating workbench, a position precise control mechanism, a pose adjusting mechanism and a visual position detector. Wherein the two first electric sliding rails are fixedly installed on the left side and the right side of the top of the base respectively, the portal frame is fixedly installed at the output ends of the two first electric sliding rails, the second electric sliding rail is fixedly installed on the top of the portal frame, and the controller is fixedly installed on the front side of the base. Parallel operation of machining and pre-positioning is achieved, the defect of insufficient precision caused by coordinated control of multiple servo systems is overcome, and precision accumulative errors caused by multiple times of clamping are eliminated; the method has the outstanding advantages of being high in machining efficiency, stable in positioning precision and high in adaptability.

Description

Technical Field

[0001] This invention relates to the field of machining center technology, specifically to a vertical integrated turning, milling, and grinding machining center. Background Technology

[0002] Vertical milling and turning composite machining technology is a core technology and equipment in the field of modern high-end equipment manufacturing. Its integration level and machining accuracy directly determine the manufacturing level of key components such as aero engines and large energy equipment. With the continuous improvement of the demand for intelligent manufacturing and flexible production, modern manufacturing industry has put forward higher requirements for the positioning accuracy, process coordination efficiency and adaptability of composite machining centers to multi-variety workpieces. This has made the decentralized layout and sequential processing mode of traditional single-function machine tools a key bottleneck restricting the improvement of manufacturing efficiency and product quality assurance. Currently, the mainstream machining centers in this field mainly adopt a split functional module layout. Their working principle is to achieve tool positioning through an independently controlled gantry moving system, and complete workpiece indexing in conjunction with a rotary table. Each motion unit is driven by multiple servo systems. The machining process adopts a strict serial operation mode, with loading and unloading, positioning adjustment and cutting being performed in sequence. The clamping system generally adopts a mechanical linkage synchronous structure, and symmetrical clamping is achieved through a single motor drive. Traditional technologies of this kind have obvious systemic defects: First, the sequential operation mode leads to low equipment utilization, with a large amount of waiting time during processing, making it impossible to achieve effective overlap between processes, which seriously restricts the improvement of production efficiency; Second, the collaborative control of multi-servo systems has response delay and accuracy decay problems, which easily generate motion errors when processing complex trajectories, affecting the consistency of processing accuracy; Third, traditional clamping systems lack adaptive capabilities and cannot adapt to the clamping requirements of asymmetrical workpieces, limiting the expansion of the equipment's processing range; In addition, the fixed functional layout results in a large equipment footprint, while the functions are relatively dispersed, making it difficult to meet the layout requirements of modern compact production lines; These defects together lead to a series of problems such as low production efficiency, unstable processing accuracy, insufficient equipment flexibility, and unsatisfactory space utilization. Summary of the Invention

[0003] The purpose of this invention is to provide a vertical milling and grinding integrated machining center to at least solve the problems of difficulty in adjusting the position of large workpieces, inability to perform eccentric machining, and low efficiency in process connection in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a vertical milling and turning integrated machining center, comprising a base, two first electric slide rails, a gantry frame, a second electric slide rail, a controller, a composite machining unit, an eccentric rotary table, a position precision control mechanism, a posture adjustment mechanism, and a visual position detector; wherein the two first electric slide rails are respectively fixedly installed on the top left and right sides of the base, the gantry frame is fixedly installed at the output ends of the two first electric slide rails, the second electric slide rail is fixedly installed on the top of the gantry frame, and the controller is fixedly installed on the front side of the base; the composite machining unit is fixedly installed at the output end of the second electric slide rail, the eccentric rotary table is located at the top center of the base, the position precision control mechanism is located on the top front side of the base, the posture adjustment mechanism is fixedly installed on the top right side of the base, and the visual position detector is located near the posture adjustment mechanism; the two first electric slide rails, the second electric slide rail, the composite machining unit, the eccentric rotary table, the position precision control mechanism, the posture adjustment mechanism, and the visual position detector are all electrically connected to the controller; The position control mechanism includes two fifth electric slide rails, a moving platform, a rotating platform, a linkage indexing component, and a clamping component. The two fifth electric slide rails are fixedly installed on the left and right sides of the top front end of the base and electrically connected to the controller. The moving platform is fixedly installed on the output end of the two fifth electric slide rails. The rotating platform is rotatably installed on the top of the moving platform. The linkage indexing component is located inside the two fifth electric slide rails to drive the rotating platform to rotate. The clamping component is fixedly installed on the top of the rotating platform to clamp and release the workpiece.

[0005] Preferably, the purpose is to achieve complete machining of the workpiece in a single clamping. The composite machining unit comprises a transverse moving seat, two third electric slide rails, a cutting power head, a turning tool turret, and a machining robot arm. The transverse moving seat is fixedly installed at the output end of the second electric slide rail, the two third electric slide rails are respectively installed on the front and rear sides of the transverse moving seat, the cutting power head is installed at the output end of the front third electric slide rail, the turning tool turret is installed at the output end of the rear third electric slide rail, and the machining robot arm is installed on the top of the transverse moving seat.

[0006] Preferably, the purpose is to achieve eccentric machining. The eccentric rotary worktable comprises a rotating base, two fourth electric slide rails, a machining platform, and a loading groove. The rotating base is rotatably mounted on the top of a base. The two fourth electric slide rails are mounted on the left and right sides of the top of the rotating base. The machining platform is mounted on the output ends of the two fourth electric slide rails. The loading groove is located on the front side of the machining platform. The rotational movement of the rotating base, combined with the lateral movement of the two fourth electric slide rails, drives the machining platform to achieve eccentric rotation, allowing the workpiece to present different machining orientations during the machining process. The loading groove provides a precise docking interface for an external loading device, ensuring the positioning accuracy of the workpiece transfer.

[0007] Preferably, the linkage rotation assembly comprises a rotating disk, a limiting block, a limiting seat, a limiting groove, and a connecting groove; wherein the rotating disk is rotatably mounted on the bottom of the mobile platform and fixedly connected to the rotating platform, the limiting block is eccentrically mounted on the bottom of the rotating disk, the limiting seat is fixedly mounted on the inner side of two fifth electric slide rails, the limiting groove and the connecting groove are formed on the top of the limiting seat, and the limiting block is slidably disposed in the limiting groove and the connecting groove.

[0008] Preferably, the limiting groove includes a straight segment and an arc segment. The straight segments of the two limiting grooves are collinear, and the two arc segments are located at the inner ends of the straight segments and bend in opposite directions. The arc segment of any one limiting groove is connected to the straight segment of the other limiting groove through a connecting groove. When the limiting block slides within the straight segment, the rotating platform maintains directional movement. When the limiting block enters the arc segment, under the forced guidance of the groove contour, the rotating platform is driven to generate a precise angular rotation. The connecting groove ensures that the limiting block can smoothly transition between the two limiting grooves, achieving continuous and stable rotation during reciprocating motion.

[0009] Preferably, the clamping assembly comprises two limiting guide rods, a fixing frame, two fixing plates, two clamping plates, two lead screws, and two first motors. The limiting guide rods are installed on the top left and right sides of the rotating platform. The fixing frame is installed on top of the limiting guide rods. The fixing plates are installed on the left and right sides of the fixing frame and fixedly connected to the rotating platform at their bottom. The clamping plates are slidably connected to the limiting guide rods. The lead screws are screwed to the clamping plates. The first motors are installed on top of the fixing frame and connected to the lead screws. The two first motors are independently controlled by a controller, driving the two lead screws to rotate, causing the two clamping plates to move in opposite directions along the limiting guide rods, thus achieving adaptive clamping of the workpiece. Because the two clamping plates can be independently controlled, they can handle asymmetrical workpieces, adjust the clamping center of gravity, and provide conditions for fine-tuning the workpiece's posture.

[0010] Preferably, the purpose is to precisely adjust the workpiece position. The posture adjustment mechanism includes a static platform, a moving platform, six telescopic components, and a retraction groove. The static platform is fixedly installed on the top right side of the base. The two ends of the six telescopic components are respectively connected to the upper surface of the static platform and the moving platform via universal hinges. The retraction groove is located on the left side of the moving platform. When the workpiece is placed on the moving platform, the visual position detector detects the workpiece posture deviation. The controller calculates the required extension and retraction amount of the six telescopic components. By coordinating the extension and retraction of the six telescopic components, the moving platform is driven to move in six degrees of freedom to complete the precise adjustment of the workpiece position. The retraction groove provides an exit path for the clamping plate of the position precision control mechanism, ensuring that the clamping plate can smoothly descend and disengage after the workpiece is placed.

[0011] Preferably, the purpose is to achieve high-precision position adjustment of the workpiece. The telescopic assembly comprises a mounting base, a telescopic rod, a screw, a second motor, a first bevel gear, and a second bevel gear. The mounting base is mounted on the top of the stationary platform via a universal hinge. The telescopic rod is slidably mounted on the top of the mounting base. The screw is screwed to the telescopic rod. The second motor is mounted on the front side of the mounting base. The first bevel gear is mounted on the bottom of the screw. The second bevel gear is mounted on the output end of the second motor and meshes with the first bevel gear. The second motor drives the second bevel gear to rotate, which in turn drives the first bevel gear and the screw to rotate. The rotational motion of the screw is converted into the linear telescopic motion of the telescopic rod using the principle of helical transmission. Under the coordinated control of the controller, these six telescopic components jointly determine the spatial orientation of the moving platform through precise length changes, achieving high-precision positioning of the workpiece.

[0012] The advantages of this invention compared to the prior art are as follows: 1. This invention achieves parallel operation of machining and pre-positioning through the innovative design of the coordinated layout of the position precision control mechanism and the posture adjustment mechanism. The position precision control mechanism converts linear motion into precise rotation through the linkage indexing component. While the current workpiece is being processed in the composite machining unit, the next workpiece is simultaneously transported to the posture adjustment mechanism for visual inspection and six-degree-of-freedom fine adjustment. This fundamentally solves the problem of long waiting time between processes in traditional machining centers and achieves a technical effect of improving the continuous operation efficiency of the equipment by more than 90%.

[0013] 2. This invention ensures high precision and high reliability of motion conversion through the innovative design of pure mechanical coupling of the linkage rotation component. The limiting block, through the constraint of the curve contour of the limiting groove, automatically drives the rotating platform to generate a precise rotation angle when the moving platform moves in a straight line, forming a composite motion output of movement and rotation without the need for an additional driving source. This effectively solves the problems of system complexity and precision attenuation caused by the coordinated control of multiple servo motors.

[0014] 3. This invention achieves full-process machining in a single clamping operation through the innovative design of multi-process integrated composite machining unit. The cutting power head, turning turret and machining robot arm achieve precise feeding through independently controlled third electric slide rail. Driven by the transverse moving seat, they work together in the machining sequence, forming a multi-functional integrated solution for milling, turning, drilling and tapping, which fundamentally solves the problems of cumulative accuracy error and low efficiency caused by multiple clamping.

[0015] 4. This invention, through the innovative design of the combination of clamping components and a six-degree-of-freedom pose adjustment mechanism, ensures the adaptive and precise positioning of complex workpieces. The two clamping plates achieve asymmetrical clamping through independent driving, and the six telescopic components of the pose adjustment mechanism work together to form a complete process chain from coarse positioning to fine adjustment. This perfectly adapts to the processing needs of irregularly shaped workpieces and large components, and greatly expands the processing range and process adaptability of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the posture adjustment mechanism. Figure 3 This is a front sectional view of the telescopic component; Figure 4 This is a schematic diagram of the clamping component structure; Figure 5 This is a top view of the limiting seat; Figure 6 for Figure 6 This is a top view of the limiting block when it is located on the arc segment; Figure 7 A top view of the clamping component positioned above the pose adjustment mechanism; Figure 8 This is a top view of the limiting block when it is located in the connecting slot; Figure 9 This is a top view of the clamping assembly located above the feeding groove; Figure 10 This is a top view of the clamping component as it moves forward.

[0017] In the diagram: 1. Base; 2. First electric slide rail; 3. Gantry frame; 4. Second electric slide rail; 5. Composite machining unit; 51. Lateral moving seat; 52. Third electric slide rail; 53. Cutting power head; 54. Turning tool turret; 55. Machining robot arm; 6. Eccentric rotary table; 61. Rotary base; 62. Fourth electric slide rail; 63. Machining platform; 64. Loading groove; 7. Positioning precision control mechanism; 71. Fifth electric slide rail; 72. Moving platform; 73. Rotating platform; 74. Linkage indexing assembly; 741. Rotary disk; 742. Limit block; 743. Limit seat; 744, Limiting groove; 7441, Straight segment; 7442, Arc segment; 745, Connecting groove; 75, Clamping assembly; 751, Limiting guide rod; 752, Fixing frame; 753, Fixing plate; 754, Clamping plate; 755, Lead screw; 756, First motor; 8, Posture adjustment mechanism; 81, Static platform; 82, Moving platform; 83, Telescopic assembly; 831, Mounting base; 832, Telescopic rod; 833, Screw; 834, First bevel gear; 835, Second bevel gear; 836, Second motor; 84, Retreat groove; 9, Controller; 10, Visual position detector. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-10To achieve the above objectives, the present invention provides a technical solution: a central equipment for vertical milling and grinding integrated composite machining, comprising a base 1, two first electric slide rails 2, a gantry frame 3, a second electric slide rail 4, a controller 9, a composite machining unit 5, an eccentric rotary table 6, a position precision control mechanism 7, a posture adjustment mechanism 8, and a visual position detector 10; wherein the two first electric slide rails 2 are installed on the left and right sides of the top of the base 1, the gantry frame 3 is installed at the output end of the first electric slide rails 2, the second electric slide rail 4 is installed on the top of the gantry frame 3, the composite machining unit 5 is installed at the output end of the second electric slide rail 4, the eccentric rotary table 6 is located in the middle of the top of the base 1, the position precision control mechanism 7 is located on the front side of the top of the base 1, and the posture adjustment mechanism 8 is installed on the top of the base 1. On the right side of the part, the visual position detector 10 is located near the pose adjustment mechanism 8, and the controller 9 is installed on the front side of the base 1 and electrically connected to all electric components; the position precision control mechanism 7 further includes two fifth electric slide rails 71, a moving platform 72, a rotating platform 73, a linkage indexing component 74, and a clamping component 75; during its operation, the controller 9 coordinates the various execution components. The clamping component 75 first clamps the workpiece, and then the two fifth electric slide rails 71 drive the moving platform 72 to move longitudinally. During this process, the linkage indexing component 74 converts the linear motion into the precise rotation of the rotating platform 73, realizing the pose change of the workpiece during the transmission process; at the same time, the visual position detector 10 monitors the position status of the workpiece on the pose adjustment mechanism 8 in real time, providing feedback data for subsequent precise positioning.

[0020] As a preferred option, further, such as Figure 1 As shown, the composite machining unit 5 comprises a transverse moving base 51, two third electric slide rails 52, a cutting power head 53, a turning tool turret 54, and a machining robot arm 55. The transverse moving base 51 is fixedly mounted on the output end of the second electric slide rail 4. The two third electric slide rails 52 are respectively mounted on the front and rear sides of the transverse moving base 51. The cutting power head 53 is mounted on the output end of the front third electric slide rail 52, the turning tool turret 54 is mounted on the output end of the rear third electric slide rail 52, and the machining robot arm 55 is mounted on the top of the transverse moving base 51. During operation, the entire composite machining unit 5 is moved laterally along the gantry 3 by the second electric slide rail 4. The two third electric slide rails 52 drive the cutting power head 53 and the turning tool turret 54 to perform precise vertical feed, so that the rotary tool mounted on the cutting power head 53 and the turning tool mounted on the turning tool turret 54 perform milling, grinding and turning operations on the workpiece according to the machining sequence. At the same time, the machining robot arm 55 performs special machining such as drilling and tapping with multiple degrees of freedom, which require flexible angles, to realize multi-process composite machining of the workpiece in one clamping.

[0021] As a preferred option, further, such as Figure 1As shown, the eccentric rotary worktable 6 comprises a rotary base 61, two fourth electric slide rails 62, a processing platform 63, and a loading groove 64. The rotary base 61 is rotatably mounted on the top of the base 1. The two fourth electric slide rails 62 are mounted on the left and right sides of the top of the rotary base 61. The processing platform 63 is mounted on the output end of the two fourth electric slide rails 62. The loading groove 64 is located on the front side of the processing platform 63. During operation, the rotary base 61, driven by the controller 9, rotates in conjunction with the lateral sliding of the two fourth electric slide rails 62, driving the processing platform 63 to achieve eccentric rotation, allowing the workpiece to be positioned in different directions during processing. At the same time, the loading groove 64 provides a precise docking interface for external loading devices, ensuring the positioning accuracy and stability of workpiece transmission through mechanical cooperation with the conveying mechanism.

[0022] As a preferred option, further, such as Figure 4-10 As shown, the linkage indexing assembly 74 comprises a rotating disk 741, a limiting block 742, a limiting seat 743, a limiting groove 744, and a connecting groove 745. The rotating disk 741 is rotatably mounted on the bottom of the moving platform 72 and fixedly connected to the rotating platform 73. The limiting block 742 is eccentrically mounted on the bottom of the rotating disk 741. The limiting seat 743 is fixedly mounted on the inner side of the two fifth electric slide rails 71. The limiting groove 744 and the connecting groove 745 are formed on the top of the limiting seat 743. During operation, when the moving platform 72 moves linearly under the drive of the fifth electric slide rails 71, the eccentrically mounted limiting block 742 generates a specific trajectory movement under the contour constraint of the limiting groove 744 and the connecting groove 745. Through this mechanical coupling, the linear motion of the moving platform 72 is converted into the precise rotational motion of the rotating disk 741 and the rotating platform 73, realizing the output of a composite motion of movement and rotation without the need for an additional drive source.

[0023] As a preferred option, further, such as Figure 5 As shown, the limiting groove 744 includes a straight segment 7441 and an arc segment 7442. The straight segments 7441 of the two limiting grooves 744 are collinearly arranged, and the two arc segments 7442 are located at the inner end of the straight segment 7441 and bend in opposite directions. The arc segment 7442 of any limiting groove 744 is connected to the straight segment 7441 of the other limiting groove 744 through a connecting groove 745. During its operation, through the specially designed curved channel, when the limiting block 742 slides in the straight segment 7441, the rotating platform 73 maintains pure translational motion; when the limiting block 742 enters the arc segment 7442, it generates a precise angular deflection under the forced guidance of the channel contour; the connecting groove 745 ensures that the limiting block 742 can smoothly transition between the two limiting grooves 744, realizing continuous and stable rotational movement in reciprocating motion.

[0024] As a preferred option, further, such as Figure 4As shown, the clamping assembly 75 comprises two limiting guide rods 751, a fixing frame 752, two fixing plates 753, two clamping plates 754, two lead screws 755, and two first motors 756. The limiting guide rods 751 are mounted on the top left and right sides of the rotating platform 73, the fixing frame 752 is mounted on top of the limiting guide rods 751, the fixing plates 753 are mounted on the left and right sides of the fixing frame 752 and their bottoms are fixedly connected to the rotating platform 73, the clamping plates 754 are slidably connected to the limiting guide rods 751, and the lead screws... 755 is screwed to the clamping plate 754. The first motor 756 is installed on the top of the fixed frame 752 and connected to the lead screw 755. During operation, the two first motors 756 are independently controlled by the controller 9, which drives the two lead screws 755 to rotate. Through the screw drive, the two clamping plates 754 move in opposite directions along the limit guide rod 751 to achieve adaptive clamping of the workpiece. This dual independent drive structure can handle asymmetrical workpieces and can adjust the clamping center and clamping force as needed.

[0025] As a preferred option, further, such as Figure 2-3 As shown, the posture adjustment mechanism 8 includes a static platform 81, a moving platform 82, six telescopic components 83, and a retraction groove 84. The static platform 81 is fixedly installed on the top right side of the base 1. The two ends of the six telescopic components 83 are connected to the upper surface of the static platform 81 and the moving platform 82 respectively through universal hinges. The retraction groove 84 is opened on the left side of the moving platform 82. During its operation, when the workpiece is placed on the moving platform 82, the visual position detector 10 first detects the workpiece posture deviation and transmits the data to the controller 9. The controller calculates the required precise extension and retraction amount of the six telescopic components 83 through kinematic algorithms. By coordinating the extension and retraction of the six telescopic components, the moving platform 82 is driven to move in six degrees of freedom to complete the precise adjustment of the workpiece position. At the same time, the retraction groove 84 provides an exit path for the clamping plate 754 of the position precision control mechanism 7, ensuring that the clamping plate can smoothly descend and disengage after the workpiece is placed, avoiding motion interference.

[0026] As a preferred option, further, such as Figure 3As shown, the telescopic assembly 83 comprises a mounting base 831, a telescopic rod 832, a screw 833, a second motor 836, a first bevel gear 834, and a second bevel gear 835. The mounting base 831 is mounted to the top of the stationary platform 81 via a universal hinge. The telescopic rod 832 is slidably mounted to the top of the mounting base 831. The screw 833 is screwed to the telescopic rod 832. The second motor 836 is mounted on the front side of the mounting base 831. The first bevel gear 834 is mounted at the bottom of the screw 833, and the second bevel gear 835 is mounted on the input shaft of the second motor 836. The second motor 836 receives instructions from the controller 9 to drive the second bevel gear 835 to rotate. Through the meshing bevel gear pair, the first bevel gear 834 and the screw 833 are driven to rotate. The rotational motion of the screw 833 is converted into the precise linear extension and retraction motion of the telescopic rod 832 by using the principle of screw transmission. Under the coordinated control of the controller, the six such telescopic components 83 jointly determine the spatial posture of the moving platform 82 through precise length change combinations, so as to realize the high-precision positioning and adjustment of the workpiece.

[0027] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0028] Step 1: The position control mechanism 7 performs workpiece gripping action through its clamping component 75. The two first motors 756 drive the two lead screws 755 to rotate, causing the two clamping plates 754 to move independently along the limit guide rod 751, realizing adaptive clamping of the workpiece. Subsequently, the controller 9 controls the two fifth electric slide rails 71 to run synchronously, driving the moving platform 72 to move longitudinally along the front side of the top of the base 1. During this process, the rotating disk 741 fixed at the bottom of the moving platform 72 interacts with the contour constraints of the limit groove 744 and the connecting groove 745 on the limit seat 743 through the eccentrically set limit block 742. When the moving platform 72 moves linearly, the limit block 742 is guided by the curved channel, forcing the rotating disk 741 to drive the rotating platform 73 to produce precise rotation. Step 2: When the workpiece is moved above the posture adjustment mechanism 8, the clamping assembly 75 places the workpiece on the surface of the moving platform 82. At this time, the clamping plate 754 descends through the retraction groove 84 and detaches from the workpiece. Simultaneously, the visual position detector 10 collects the position data of the workpiece on the posture adjustment mechanism 8 in real time and transmits it to the controller 9. The controller 9 calculates the posture deviation based on the detection data and drives the six telescopic components 83 to work together: each second motor 836 drives the screw 833 to rotate through the meshing second bevel gear 835 and first bevel gear 834, pushing the telescopic rod 832 to extend and retract precisely, so that the moving platform 82 can be adjusted in six degrees of freedom to complete the precise pre-positioning of the workpiece before processing. Step 3: The pre-positioned workpiece is transferred by the position control mechanism 7 to the machining platform 63 of the eccentric rotary table 6. The loading groove 64 ensures accurate docking with the transmission device. The controller 9 controls the rotating base 61 to rotate the workpiece. At the same time, the lateral position of the machining platform 63 is adjusted by two fourth electric slide rails 62. Under the control of the controller 9, the composite machining unit 5 achieves lateral positioning by the second electric slide rail 4. The vertical positions of the cutting power head 53 and the turning tool turret 54 are adjusted by two third electric slide rails 52 respectively, so that the rotary tool installed on the cutting power head 53 and the turning tool installed on the turning tool turret 54 perform milling, grinding and turning operations on the workpiece in sequence. At the same time, the machining robot arm 55 performs special machining operations such as drilling and tapping, realizing the complete machining of the workpiece in one clamping. Step 4: When the workpiece is being processed in the composite processing unit 5, the position precision control mechanism 7 can transport the next workpiece to the posture adjustment mechanism 8, so that processing and pre-positioning can be carried out simultaneously, thereby improving work efficiency. This invention achieves mechanical coupling of movement and rotation through the linkage and rotation components of the position precision control mechanism, combined with the six-degree-of-freedom precise attitude adjustment capability of the posture adjustment mechanism. In addition, the workpiece processing and the pre-positioning of the next workpiece are carried out simultaneously, effectively solving the technical problems of low repeatability positioning accuracy and poor process conversion efficiency in the processing of large workpieces, and realizing high-precision and high-efficiency composite processing.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical milling and grinding integrated machining center, comprising: The base (1), two first electric slide rails (2), a gantry frame (3), a second electric slide rail (4), and a controller (9) are provided. The two first electric slide rails (2) are fixedly installed on the top left and right sides of the base (1), respectively. The gantry frame (3) is fixedly installed at the output end of the two first electric slide rails (2). The second electric slide rail (4) is fixedly installed on the top of the gantry frame (3). The controller (9) is fixedly installed on the front side of the base (1). Both the two first electric slide rails (2) and the second electric slide rail (4) are electrically connected to the controller (9). The base is characterized by further comprising: The composite processing unit (5) is fixedly installed at the output end of the second electric slide rail (4) and electrically connected to the controller (9); An eccentric rotary table (6) is located at the top center of the base (1) and is electrically connected to the controller (9); The position control mechanism (7) is located on the top front side of the base (1) and is electrically connected to the controller (9); The pose adjustment mechanism (8) is fixedly installed on the top right side of the base (1) and electrically connected to the controller (9); A visual position detector (10) is located near the pose adjustment mechanism (8) and electrically connected to the controller (9) to detect the position of the workpiece on the pose adjustment mechanism (8) and send a detection signal to the controller (9).

2. The vertical turning, milling, and grinding integrated machining center according to claim 1, characterized in that, The position precision control mechanism (7) includes: The fifth electric slide rail (71) consists of two rails, which are fixedly installed on the left and right sides of the top front end of the base (1) and are electrically connected to the controller (9). The mobile platform (72) is fixedly installed at the output end of the two fifth electric slide rails (71); A rotating platform (73) is rotatably mounted on top of the mobile platform (72); The linkage indexing component (74) is disposed on the inner side of the two fifth electric slide rails (71) and is used to drive the rotating platform (73) to rotate; The clamping assembly (75) is fixedly mounted on the top of the rotating platform (73) for clamping and releasing the workpiece.

3. A vertical turning, milling, and grinding integrated machining center according to claim 2, characterized in that, The composite processing unit (5) includes: A transverse moving seat (51) is fixedly installed at the output end of the second electric slide rail (4); The third electric slide rail (52) consists of two rails, which are fixedly installed on the front and rear sides of the transverse moving seat (51) respectively, and are both electrically connected to the controller (9). The cutting power head (53) is fixedly installed at the output end of the third electric slide rail (52) located on the front side, and is used to install rotary cutting tools; The tool turret (54) is fixedly installed at the output end of the third electric slide rail (52) located at the rear, and is used to mount the cutting tool; The machining robot arm (55) is fixedly mounted on the top of the transverse moving base (51) and is used to perform special machining such as drilling, tapping or other machining that requires flexible angles.

4. A vertical turning, milling, and grinding integrated machining center according to claim 3, characterized in that, The eccentric rotary table (6) includes: A rotating base (61) is rotatably mounted on the top of the base (1) and electrically connected to the controller (9), which can drive the rotating base (61) to rotate. The fourth electric slide rail (62) consists of two rails, which are fixedly installed on the top left and right sides of the rotating base (61) respectively, and are both electrically connected to the controller (9). The processing platform (63) is fixedly installed at the output end of the two fourth electric slide rails (62); The loading groove (64) is located on the front side of the processing platform (63).

5. A vertical turning, milling, and grinding integrated machining center according to claim 4, characterized in that, The linkage transposition component (74) includes: A rotating disk (741) is rotatably mounted on the bottom of the mobile platform (72) and fixedly connected to the rotating platform (73); A limiting block (742) is fixedly installed at the bottom of the rotating disk (741), and the limiting block (742) is eccentrically positioned; The limiting seat (743) is fixedly installed on the inner side of the two fifth electric slide rails (71); Two limiting grooves (744) are centrally symmetrically provided on the top of the limiting seat (743); There are two connecting grooves (745), both of which are opened between the two limiting grooves (744). The limiting block (742) is slidably disposed in the limiting groove (744) and the connecting groove (745). When the moving platform (72) moves along the fifth electric slide rail (71), the limiting block (742) is constrained by the contours of the limiting groove (744) and the connecting groove (745), which drives the rotating disk (741) and the rotating platform (73) to rotate.

6. A vertical turning, milling, and grinding integrated machining center according to claim 5, characterized in that, The limiting groove (744) includes a straight segment (7441) and an arc segment (7442). The straight segments (7441) of the two limiting grooves (744) are arranged collinearly. The arc segments (7442) of the two limiting grooves (744) are both located at the inner ends of the two straight segments (7441) and are curved in opposite directions. The arc segment (7442) of any one limiting groove (744) is connected to the straight segment (7441) of the other limiting groove (744) through a connecting groove (745).

7. A vertical turning, milling, and grinding integrated machining center according to claim 6, characterized in that, The clamping assembly (75) includes: Two limit guide rods (751) are installed on the top left and right sides of the rotating platform (73), respectively; A fixing bracket (752) is fixedly installed on the top of the two limiting guide rods (751); There are two fixing plates (753), which are installed on the left and right sides of the fixing frame (752) respectively, and the bottom of both fixing plates (753) are fixedly connected to the rotating platform (73). There are two clamping plates (754), each of which is slidably connected to the two limiting guide rods (751); There are two lead screws (755), one end of which is rotatably connected to the rotating platform (73), and the other end of which is rotatably connected to the fixed frame (752). The two lead screws (755) are respectively screwed to the two clamping plates (754). There are two first motors (756), which are fixedly installed on the top left and right sides of the fixed frame (752) respectively, and both are electrically connected to the controller (9). The output ends of the two first motors (756) are fixedly connected to the two lead screws (755) respectively.

8. A vertical turning, milling, and grinding integrated machining center according to claim 7, characterized in that, The pose adjustment mechanism (8) is a six-degree-of-freedom parallel mechanism for pre-positioning the workpiece, including: A static platform (81) is fixedly installed on the top right side of the base (1); Dynamic platform (82); There are six telescopic components (83). The two ends of each telescopic component (83) are connected to the upper surface of the static platform (81) and the moving platform (82) respectively via universal hinges. Each telescopic component (83) is electrically connected to the controller (9). A retreat groove (84) is provided on the left side of the moving platform (82).

9. A vertical turning, milling, and grinding integrated machining center according to claim 8, characterized in that, The telescopic component (83) includes: Mounting base (831) is rotatably mounted on the top of the static platform (81) via a universal hinge; The telescopic rod (832) is slidably mounted on the top of the mounting base (831); The screw (833) is rotatably mounted on the bottom of the inner cavity of the mounting base (831) and screwed to the telescopic rod (832); The second motor (836) is fixedly installed on the front side of the mounting base (831) and electrically connected to the controller (9); The first bevel gear (834) is fixedly installed at the bottom of the screw (833); The second bevel gear (835) is fixedly installed at the output end of the second motor (836) and is adapted to mesh with the first bevel gear (834).

Images