Double-station mirror frame machining equipment and machining method

Abstract

According to the double-station mirror frame machining equipment and the machining method, a main machine frame and an auxiliary machine frame are isolated through an elastic vibration reduction assembly, vibration crosstalk during double-station parallel operation is effectively restrained, and the situation that vibration generated during rough machining of one station interferes with finish machining of the other station is avoided; therefore, the equipment can realize high-stability double-station parallel operation, the machining efficiency of the whole machine is effectively improved, and the machining precision and the surface quality consistency of a final product are also ensured; meanwhile, an outer frame machining position is designed to be a light-weight movement structure with a fixed cutter and a movable workpiece, the movement inertia is reduced, higher machining speed and acceleration are achieved, and the machining cycle of a single product is shortened. In addition, an inclined flexible feeding track is achieved through the multi-axis capacity of the multi-axis movement mechanism, the adaptability to workpieces of different sizes is improved, and the feeding success rate is increased.

Description

Technical Field

[0001] The present application relates to the technical field of CNC machining equipment, and in particular to a double-station mirror frame machining equipment and a machining method. Background Art

[0002] As a functional and decorative product, eyeglass frames require machining accuracy, surface finish, and production efficiency that are crucial to their ultimate quality and market competitiveness. To improve production efficiency, the industry generally adopts dual-station machining centers, where one station processes the inner frame while another processes the outer frame. This collaborative work shortens the processing cycle for individual products.

[0003] However, the existing dual-station frame processing equipment generally has a series of interrelated technical bottlenecks in structural design and working mode, which are specifically reflected in the following aspects: First, traditional designs generally employ a fixed frame blank while the tool moves. In this model, the entire machining head, including the spindle, motor, tool magazine, and cooling system, acts as a heavy moving component, requiring high-speed reciprocating motion in three or more dimensions: X, Y, and Z. Due to its enormous mass and size, its motion inertia is high. This directly leads to two problems: First, the equipment's acceleration and deceleration performance is limited during startup, shutdown, and high-speed steering, making it difficult to achieve higher machining speeds, thereby limiting overall production efficiency. Second, the significant inertia easily generates vibration and positioning overshoot during motion, which directly affects machining accuracy and surface finish, especially during high-speed finishing.

[0004] Secondly, in existing dual-station equipment, the two processing stations are typically rigidly mounted on the same base platform or frame. This rigid, co-existing structure leads to serious vibration coupling issues. When one station is performing roughing operations with high cutting forces, such as grooving or deep-cut milling, the strong vibrations generated are transmitted unimpeded through the rigid frame to the other station. If the other station is simultaneously performing highly vibration-sensitive finishing operations, such as highlight chamfering or surface finishing, this external vibration interference can cause knife marks or chatter marks on the surface of the frame blank, severely damaging the surface quality and resulting in product rejection or the need for additional polishing. To avoid this problem, operators are often forced to adopt conservative serial or semi-parallel processing strategies, significantly reducing the efficiency advantages of the dual-station design. Summary of the Invention

[0005] In order to solve the above problems, the present application provides a dual-station frame processing equipment and processing method that simultaneously solves the problems of precision, efficiency and reliability in dual-station parallel processing.

[0006] In order to achieve the above-mentioned objectives, in the first aspect, an embodiment of the present application provides a double-station frame processing equipment, including a main frame, a sub-frame and an elastic vibration damping component, wherein the elastic vibration damping component couples the sub-frame to the main frame to block the vibration transmitted between the main frame and the sub-frame during the operation of the equipment; the sub-frame is provided with an inner frame processing assembly for performing inner frame processing on the frame blank; the main frame is provided with a rotating cutter head and a multi-axis motion mechanism, and the rotating cutter head is fixedly mounted on the main frame for loading processing tools; the driving end of the multi-axis motion mechanism is provided with an expansion clamp, and the expansion clamp performs a composite motion of multiple translational degrees of freedom and multiple rotational degrees of freedom in three-dimensional space under the drive of the multi-axis motion mechanism, so that the frame blank loaded by the expansion clamp is positioned under the rotating cutter head for outer frame processing.

[0007] Preferably, the elastic vibration damping assembly includes a plurality of support seats and at least one elastic body, wherein the plurality of support seats are fixed to the main frame and are located below the sub-frame; the elastic body is arranged between the support seats and the sub-frame to provide buffering.

[0008] Preferably, a horizontal extension portion is provided on the support base and / or the sub-frame; the elastic body includes a connecting member, a first elastic member provided between the horizontal extension portion and the sub-frame, and a second elastic member provided below the horizontal extension portion; wherein the connecting member connects and holds the first elastic member, the horizontal extension portion, the second elastic member and the sub-frame as a whole.

[0009] Preferably, the inner frame processing assembly includes an XY-axis translation mechanism, a rotational translation mechanism and an inner frame processing spindle coupled to the XY-axis translation mechanism. A holding fixture is provided at the driving end of the rotational translation mechanism. The holding fixture is located below the inner frame processing spindle and is used to clamp the frame blank to be processed.

[0010] Preferably, the holding fixture includes a first clamp and a second clamp, the rotation and translation mechanism includes a first X-axis translation platform and a Z-axis rotation platform arranged on the first X-axis translation platform, the first clamp is arranged on the first X-axis translation platform, the Z-axis rotation platform is provided with a second X-axis translation platform, the second clamp is arranged on the second X-axis translation platform, and is located in the same horizontal processing plane as the first clamp to cooperate with clamping the frame blank to be processed; wherein, after the inner frame processing spindle completes the inner frame processing, the rotation and translation mechanism is configured to drive the second clamp to transfer the frame blank that has completed the inner frame processing and maintain it at a preset handover position.

[0011] Preferably, the sub-frame includes a base frame and a side frame arranged perpendicular to the base frame; the rotation and translation mechanism is installed on the base frame and is located on the front side of the side frame, and a telescopic cover is also provided on the base frame. The holding fixture is exposed at the top of the telescopic cover, and the XY-axis translation mechanism is installed on the rear side of the side frame. The inner frame processing spindle is located on the front side of the side frame, so that the inner frame processing can be performed on the frame blank clamped by the holding fixture under the drive of the XY-axis translation mechanism.

[0012] Preferably, the multi-axis motion mechanism is a five-axis manipulator; or, the multi-axis motion mechanism includes a second X-axis translation mechanism, a Z-axis lifting mechanism arranged on the second X-axis translation mechanism, a Y-axis translation mechanism arranged on the Z-axis lifting mechanism, a first rotation mechanism arranged on the Y-axis translation mechanism, a loading base arranged on the first rotation mechanism, and a second rotation mechanism arranged on the loading base; the expansion clamp is arranged on the second rotation mechanism.

[0013] Preferably, the main frame includes a base frame, a tool holder suspension beam and two oppositely arranged support frames, and the two ends of the tool holder suspension beam are respectively fixedly connected to the two support frames to form an open chip removal space under the tool holder suspension beam; the rotating cutter disc is fixedly installed on the front side of the tool holder suspension beam; the second X-axis translation mechanism, Z-axis lifting mechanism, and Y-axis translation mechanism are arranged on the rear side of the tool holder suspension beam; wherein the loading seat extends from the rear side of the tool holder suspension beam to the chip removal space.

[0014] In a second aspect, an embodiment of the present application provides a double-station frame processing method, which uses the equipment described in any embodiment of the first aspect to perform frame processing, and the method includes: on the sub-frame, using the inner frame processing assembly to perform inner frame processing on a first frame blank to obtain a second frame blank; in parallel, on the main frame, using the rotating cutter head and the multi-axis motion mechanism, performing outer frame processing on the second frame blank.

[0015] Furthermore, the method further comprises: The inner frame processing assembly moves the first frame blank after the inner frame processing to a preset handover position; The multi-axis motion mechanism drives the expansion clamp along a preset arc trajectory and begins to enter the inner frame of the first frame blank in an inclined posture; During the process of the expansion clamp continuously entering the inner frame of the first frame blank, the multi-axis motion mechanism drives the expansion clamp to gradually adjust its posture from the inclined posture to the horizontal posture completely entering the inner frame of the first frame blank; After the expansion clamp expands the inner frame contour of the first frame blank, the inner frame processing assembly releases the first frame blank.

[0016] The dual-station mirror frame processing equipment and processing method designed in this application uses elastic vibration damping components to isolate the main and auxiliary frames, effectively suppressing vibration crosstalk during the parallel operation of the dual stations, avoiding the interference of vibration generated by rough processing at one station on the fine processing of another station, thereby ensuring that the equipment can achieve high-stability dual-station parallel operation, which not only effectively improves the processing efficiency of the entire machine, but also ensures the processing accuracy and surface quality consistency of the final product; at the same time, the outer frame processing station is designed as a lightweight motion structure with a fixed tool and a moving workpiece, which reduces the motion inertia, achieves higher processing speed and acceleration, and shortens the processing cycle of a single product. In addition, the inclined flexible loading trajectory achieved by the multi-axis capability of the multi-axis motion mechanism improves the adaptability to workpieces of different sizes and the loading success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the double-station mirror frame processing equipment provided in an embodiment of the present application.

[0018] Figure 2 This is a structural schematic diagram of the double-station mirror frame processing equipment provided in an embodiment of the present application from another perspective.

[0019] Figure 3 yes Figure 2 Enlarged schematic diagram of point A in the middle.

[0020] Figure 4 yes Figure 1 Right view of .

[0021] Figure 5 This is a structural schematic diagram of the double-station mirror frame processing equipment provided in an embodiment of the present application from another perspective.

[0022] Figure 6 It is a schematic diagram of the planar structure of the double-station mirror frame processing equipment provided in an embodiment of the present application.

[0023] Figure 7 It is a schematic structural diagram of the elastic vibration damping assembly provided in an embodiment of the present application.

[0024] Figure 8 This is a schematic exploded view of the loading action of the first frame blank loaded by the expansion clamp provided in an embodiment of the present application.

[0025] Among them: main frame 10, base frame 11, tool holder suspension beam 12, support frame 13, sub-frame 20, base frame 21, side frame 22, elastic vibration damping component 30, support seat 31, horizontal extension part 311, elastic body 32, connecting piece 321, first elastic piece 322, second elastic piece 323, inner frame processing assembly 40, XY-axis translation mechanism 41, rotation and translation mechanism 42, first X-axis translation platform 421, Z-axis rotation table 422, second X-axis translation platform 423, inner frame processing spindle 43, first clamping jaw 44, second clamping jaw 45, rotating cutter head 50, multi-axis motion mechanism 60, second X-axis translation mechanism 61, Z-axis lifting mechanism 62, Y-axis translation mechanism 63, first rotation mechanism 64, loading seat 65, second rotation mechanism 66, expansion clamp 70, first frame blank 100. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0027] See Figures 1 to 8 As shown, the embodiment of the present application provides a double-station frame processing device and a double-station frame processing method using the device to process the frame.

[0028] Specifically, the dual-station eyeglass frame processing equipment primarily comprises a main frame 10 and a sub-frame 20, along with an elastic vibration damping assembly 30 that flexibly connects the two. The equipment's functional units are divided into two stations: an inner frame processing assembly 40, integrally mounted on the sub-frame 20, processes the inner frame of the eyeglass frame blank; and an outer frame processing assembly, comprised of a rotating cutterhead 50 and a multi-axis motion mechanism 60, is mounted on the main frame 10.

[0029] Among them, the elastic vibration damping assembly 30 couples the sub-frame 20 to the main frame 10 to block the vibration transmitted between the main frame 10 and the sub-frame 20 during the operation of the equipment. Specifically, the sub-frame 20 is not rigidly connected to the main frame 10, but is coupled to the main frame 10 in a flexible and relatively micro-movable manner through the elastic vibration damping assembly 30. Therefore, when the equipment is operating in parallel, the vibration generated by any workstation, such as the outer frame processing assembly on the main frame 10 when performing large-amount cutting processing, will be effectively absorbed and isolated by the elastic vibration damping assembly 30 during the path of transmission to another workstation, such as the inner frame processing assembly on the sub-frame 20, and vice versa. This fundamentally solves the vibration crosstalk problem in traditional equipment, thereby ensuring that the two workstations can truly perform high-precision operations in parallel without interfering with each other.

[0030] The rotating cutterhead 50 is used to load machining tools. A clamping fixture 70 is provided at the driving end of the multi-axis motion mechanism 60. Driven by the multi-axis motion mechanism 60, the clamping fixture 70 performs a composite motion with multiple translational and rotational degrees of freedom in three-dimensional space, thereby positioning the frame blank loaded by the clamping fixture 70 below the rotating cutterhead 50 for frame machining.

[0031] This approach significantly reduces the inertia of traditional high-speed moving components, transforming them from heavy machining heads to lightweight fixtures and workpieces. This allows for higher acceleration and deceleration performance and faster idle travel, effectively shortening the total processing time for a single product.

[0032] Based on the above structure, the equipment can realize efficient parallel processing flow.

[0033] In one working cycle, the double-station frame processing method provided in this embodiment includes: on the sub-frame 20, using the inner frame processing assembly 40 to perform inner frame processing on a first frame blank 100 to obtain a second frame blank; in parallel, on the main frame 10, using the rotating cutter head 50 and the multi-axis motion mechanism 60, performing outer frame processing on the second frame blank, and the two are carried out in parallel.

[0034] In this embodiment, the rotary cutterhead 50 specifically comprises a disc body that rotates about its central axis, and a plurality of tool holders distributed circumferentially along the disc body. These tool holders are used to accommodate machining tools of varying specifications or types, such as milling cutters and drill bits. The rotary cutterhead 50 is fixedly mounted to the main frame 10 via the disc body. During operation, its position relative to the main frame 10 remains unchanged, with only the rotational tool change action performed. In this embodiment, the clamping end of the expansion clamp 70 can extend into the inner contour of the frame blank, then expand radially to securely expand and clamp the second clamp from the inside to load the frame blank.

[0035] In a specific implementation, the multi-axis motion mechanism 60 can be a five-axis manipulator, and the expansion clamp 70 is mounted on the end effector of the multi-axis motion mechanism 60. The multi-axis motion mechanism 60 is configured to drive the expansion clamp 70 to perform multiple translational degrees of freedom in three-dimensional space, such as movement in the X, Y, and Z directions, and multiple rotational degrees of freedom, such as a composite motion of swing and rotation around the X, Y, or Z axis, so that different parts of the second part are moved under the rotating cutter head 50 for processing, thereby completing the processing of the complex curved surface of the outer frame.

[0036] In some embodiments, as Figure 2 、 Figure 4 、 Figure 5 、 Figure 7As shown, the elastic vibration damping assembly 30 includes multiple support bases 31 and at least one elastic body 32. The multiple support bases 31 are fixed to the main frame 10 and are located below the sub-frame 20. The elastic body 32 is arranged between the support bases 31 and the sub-frame 20 to provide cushioning. In this embodiment, to ensure stable and balanced support for the sub-frame 20, the number of support bases 31 is preferably three or four, and they are arranged in a triangular configuration or a rectangular configuration. When the equipment is running and generates vibration, the elastic body 32 will undergo elastic deformation, thereby absorbing and dissipating the vibration energy, acting as a buffer to prevent the direct and rigid transmission of vibration between the main frame 10 and the sub-frame 20.

[0037] In some embodiments, as Figure 2 、 Figure 4 、 Figure 5 、 Figure 7 As shown, a horizontal extension portion 311 is provided on the support base 31 and / or the sub-frame 20. For example, the support base 31 is generally L-shaped and includes a horizontal extension portion 311. The elastic body 32 includes a connecting member 321, a first elastic member 322 provided between the horizontal extension portion 311 and the sub-frame 20, and a second elastic member 323 provided below the horizontal extension portion 311. The connecting member 321 connects and secures the first elastic member 322, the horizontal extension portion 311, the second elastic member 323, and the sub-frame 20 as a whole. In a specific implementation, the first elastic member 322 and the second elastic member 323 can be a cylinder or a block made of a highly elastic material such as rubber or polyurethane. The installation path of the connecting member 321 is to pass through the second elastic member 323, the horizontal extension 311, and the first elastic member 322 in sequence from bottom to top, and finally to be threadedly connected to the sub-frame 20 or locked with a nut to fix the first elastic member 322, the horizontal extension 311, the second elastic member 323, and the sub-frame 20 as a whole. When the sub-frame 20 generates a downward vibration trend due to processing impact, the vibration energy is mainly absorbed and dissipated by the first elastic member 322 through compression deformation. When the sub-frame 20 generates an upward rebound or bounce trend due to vibration, this movement will pull the second elastic member 323 downward through the connecting member 321, and the vibration energy is then absorbed and dissipated by the second elastic member 323 through compression deformation.

[0038] In some embodiments, as Figure 1 、 Figure 2As shown, the inner frame processing assembly 40 includes an XY-axis translation mechanism 41, a rotational translation mechanism 42, and an inner frame processing spindle 43 coupled to the XY-axis translation mechanism 41. The driving end of the rotational translation mechanism 42 is provided with a holding fixture, which is located below the inner frame processing spindle 43 and is used to clamp the frame blank to be processed. In a specific implementation, the rotational translation mechanism 41 itself can be a multi-axis motion module with integrated translation and rotation functions. For example, it includes at least one X-axis translation and one Z-axis rotation to cooperate with the XY-plane movement of the inner frame processing spindle 43 to complete the processing of the inner frame contour of the frame blank. For example, when a frame blank to be processed is placed and firmly clamped by the holding fixture on the rotating and translating mechanism 42 to start processing, the inner frame processing spindle 43 starts to rotate, and then the XY-axis translation mechanism 41 drives the inner frame processing spindle 43 to move along the preset XY plane trajectory, so that the tool on the inner frame processing spindle 43 can perform precise milling or cutting along the contour curve of the inner frame of the frame blank.

[0039] In a specific embodiment, if Figure 1 、 Figure 3 As shown, the holding fixture includes a first clamp 44 and a second clamp 45. Both the first clamp 51 and the second clamp 52 can be pneumatic clamps. The rotation and translation mechanism 42 includes a first X-axis translation platform 421 and a Z-axis rotation platform 422 disposed on the first X-axis translation platform 421. The first clamp 44 is disposed on the first X-axis translation platform 421, and a second X-axis translation platform 423 is disposed on the Z-axis rotation platform 422. The second clamp 45 is disposed on the second X-axis translation platform 423 and is located on the same horizontal processing plane as the first clamp 44 to cooperate in clamping the frame blank to be processed. Utilizing this structural design, when the two clamps jointly clamp the frame blank, coplanarity of the clamping can be ensured without the need for an additional height adjustment mechanism in the Z-axis direction, thereby avoiding unnecessary stress or deformation on the frame blank.

[0040] In addition, after the inner frame processing spindle 43 completes the inner frame processing, the rotation and translation mechanism 42 is configured to drive the second clamping jaw 45 to transfer the inner frame processing-completed frame blank and hold it at a preset handover position. Figure 2 、 Figure 3 As shown, the frame blank is cantilevered outside the main body of the Z-axis rotating table 422, and a completely open operating space without mechanical interference is formed below and inside it, ready for the expansion clamp 70 at the outer frame processing position to come and receive it.

[0041] In some embodiments, as Figure 1 、 Figure 4 、 Figure 5As shown, the sub-frame 20 includes a base frame 21 and a side frame 22 arranged perpendicular to the base frame 21; the rotation and translation mechanism 42 is installed on the base frame 21 and is located on the front side of the side frame 22. A telescopic cover is also provided on the base frame 21, and the holding fixture is exposed at the top of the telescopic cover to reduce the impact of dust and chips. The XY-axis translation mechanism 41 is installed on the rear side of the side frame 22, and the inner frame processing spindle 43 is located on the front side of the side frame 22 to perform inner frame processing on the frame blank clamped by the holding fixture under the drive of the XY-axis translation mechanism 41. The functional modules are clearly divided and installed on different reference surfaces, which makes the assembly, calibration and subsequent maintenance of the equipment extremely convenient. Maintenance personnel can operate on a certain module in a targeted manner without disassembling other unrelated parts, which greatly shortens the equipment downtime.

[0042] In some embodiments, as Figure 1 、 Figure 4 、 Figure 5 As shown, the multi-axis motion mechanism 60 includes a second X-axis translation mechanism 61, a Z-axis lifting mechanism 62 disposed on the second X-axis translation mechanism 61, a Y-axis translation mechanism 63 disposed on the Z-axis lifting mechanism 62, and a first rotation mechanism 64 disposed on the Y-axis translation mechanism 63. In a specific implementation, to achieve posture adjustment, the first rotation mechanism 64 is mounted at the end of the Y-axis translation mechanism 63. The first rotation mechanism 64 can be a rotary table driven by a servo motor, which is used to rotate or swing the components mounted thereon about an axis, thereby changing the tilt posture of the frame blank to be processed. In addition, a loading seat 65 is provided on the first rotating mechanism 64, which serves as a structural connecting part. One end of the loading seat 65 is connected to the first rotating mechanism 64, and the other end provides an installation base for the subsequent second rotating mechanism 66. The second rotating mechanism 66 is installed on the loading seat 65. Its structure is similar to that of the first rotating mechanism 64, but its rotation axis is usually orthogonal to the axis of the first rotating mechanism 64, and is used to realize the rotation of the expansion clamp 70 itself, so as to realize complex linkage processing of any curved surface of the frame blank.

[0043] In some embodiments, as Figure 1 、 Figure 2 、 Figure 6As shown, the main frame 10 includes a base frame 11, a tool holder suspension beam 12, and two opposing support frames 13. The ends of the tool holder suspension beam 12 are fixedly connected to the two support frames 13, forming an open chip removal space below the tool holder suspension beam 12. The rotating cutter head 50 is fixedly mounted on the front side of the tool holder suspension beam 12. The second X-axis translation mechanism 61, the Z-axis lifting mechanism 62, and the Y-axis translation mechanism 63 are located on the rear side of the tool holder suspension beam 12. The loading seat 65 extends from the rear side of the tool holder suspension beam 12 to the chip removal space. In this way, the tool holder suspension beam 12 not only serves as a load-bearing structure but also divides the equipment into front and rear areas. Specifically, the rotating cutter head 50 is located on the front side of the tool holder suspension beam 12. This front area is the work area directly facing the operator and performing cutting processing. Placing the rotating cutter head 50 in this area allows for the most direct and convenient processing of the frame blanks delivered from the expansion clamp 70 below. Correspondingly, the main components of the multi-axis motion mechanism 60 responsible for large-scale movement, namely the second X-axis translation mechanism 61, the Z-axis lifting mechanism 62, and the Y-axis translation mechanism 63, are centrally located on the rear side of the tool holder suspension beam 12. This rear area can be considered the device's drive zone. A retractable isolation plate (not shown) can be installed between the front working area and the rear drive area. The loading seat 65 extends through this isolation plate into the chip removal space to isolate chips flying from the front working area during machining without affecting its movement. This prevents these contaminants from corroding and contaminating key components such as the guide rails and lead screws in the rear drive area, greatly improving the long-term stability and service life of the equipment.

[0044] In some embodiments, as Figure 8 As shown, the double-station mirror frame processing method provided in this embodiment also includes: The inner frame processing assembly 40 moves the first frame blank 100 after inner frame processing to a preset handover position. Figure 3 、 Figure 6 As shown, after the inner frame processing assembly 40 completes the inner frame processing of the first frame blank 100, it does not immediately release the workpiece. Instead, it drives the holding fixture thereon, for example, via the aforementioned second X-axis translation platform 423, to precisely move and stably hold the processed first frame blank 100 in a predetermined, open-spaced intersection position. This position provides an interference-free working window for subsequent grasping operations.

[0045] The multi-axis motion mechanism 60 drives the expansion clamp 70 along a pre-set arc path, initially entering the inner frame of the first frame blank 100 at an angle. This nonlinear, curved motion path avoids the rigid impact associated with traditional linear feed methods, completing loading in a smoother and more gentle manner. This effectively reduces the risk of scratches or crushing the first frame blank 100, which could be caused by, for example, accumulated machining precision errors.

[0046] During the process of the expansion clamp 70 continuously entering the inner frame of the first frame blank 100, the multi-axis motion mechanism 60 drives the posture of the expansion clamp 70 to gradually adjust from the inclined posture to the horizontal posture of completely entering the inner frame of the first frame blank 100. Specifically, the arc feeding trajectory defines a starting end and an ending end located in the inner frame of the first frame blank 100. The starting end is located outside the first frame blank 100 to be processed and is the starting point of the feeding action. When the expansion clamp 70 is located at the starting end, its posture is inclined relative to the horizontal plane, for example, Figure 6 As shown, its top or front end can be slightly lowered to prepare for smooth entry into the inner frame of the first frame blank 100. This also allows any chips left over from machining the front wheel to fall off the surface of the expansion clamp 70 under its own weight. The terminal end, located at the center of the inner frame of the frame blank 100 or at a predetermined clamping position, marks the end point of the loading process. When the expansion clamp 70 is at the terminal end, it has fully entered the inner frame of the first frame blank 100 and is adjusted to a horizontal position, parallel to or aligned with the plane of the first frame blank 100, achieving a stable clamping state ready for expansion.

[0047] When the multi-axis motion mechanism 60 drives the expansion clamp 70 to move from the starting end to the ending end, the top portion of the expansion clamp 70 first enters the inner frame of the frame blank 100, and then its posture gradually adjusts from an inclined posture to a horizontal posture. At the same time, the expansion clamp 70 completely enters the inner frame of the frame blank 100. This fundamentally avoids the hard impact when the expansion clamp 70 is installed on the inner frame of the frame blank 100.

[0048] After the expansion clamp 70 expands the inner frame contour of the first frame blank 100, the inner frame processing assembly 40 releases the first frame blank 100. The loading of the first frame blank 100 is completed, and the continuous processing of the inner and outer frames of the frame blank is achieved.

[0049] The dual-station mirror frame processing equipment and processing method provided by the present application, by isolating the main and auxiliary frames with elastic vibration damping components, effectively suppresses vibration crosstalk during the parallel operation of the dual stations, and avoids the interference of the vibration generated by the rough processing of one station on the fine processing of another station, thereby ensuring that the equipment can achieve high-stability dual-station parallel operation, which not only effectively improves the processing efficiency of the entire machine, but also ensures the processing accuracy and surface quality consistency of the final product; at the same time, the outer frame processing station is designed as a lightweight motion structure with a fixed tool and a moving workpiece, which reduces the motion inertia, achieves higher processing speed and acceleration, and shortens the processing cycle of a single product. In addition, the inclined flexible loading trajectory achieved by the multi-axis capability of the multi-axis motion mechanism improves the adaptability to workpieces of different sizes and the loading success rate.

[0050] In the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0051] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0052] Finally, it should be noted that the above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A double-station mirror frame processing equipment, characterized in that: The device comprises a main frame, a sub-frame and an elastic vibration damping assembly, wherein the elastic vibration damping assembly couples the sub-frame to the main frame to block vibrations transmitted between the main frame and the sub-frame during operation of the device; The auxiliary frame is provided with an inner frame processing assembly for performing inner frame processing on the frame blank; the main frame is provided with a rotating cutter head and a multi-axis motion mechanism, and the rotating cutter head is fixedly mounted on the main frame for loading processing tools; the driving end of the multi-axis motion mechanism is provided with an expansion clamp, and the expansion clamp performs a composite motion of multiple translational degrees of freedom and multiple rotational degrees of freedom in three-dimensional space under the drive of the multi-axis motion mechanism, so that the frame blank loaded by the expansion clamp is positioned under the rotating cutter head for outer frame processing.

2. The double-station mirror frame processing equipment according to claim 1, characterized in that: The elastic vibration damping assembly includes a plurality of support seats and at least one elastic body. The plurality of support seats are fixed to the main frame and are located below the auxiliary frame. The elastic body is arranged between the support seats and the auxiliary frame to provide buffering.

3. The double-station mirror frame processing equipment according to claim 2, characterized in that: A horizontal extension portion is provided on the support base and / or the sub-frame; the elastic body includes a connecting member, a first elastic member provided between the horizontal extension portion and the sub-frame, and a second elastic member provided below the horizontal extension portion; wherein the connecting member connects and holds the first elastic member, the horizontal extension portion, the second elastic member and the sub-frame as a whole.

4. The double-station mirror frame processing equipment according to claim 1, characterized in that: The inner frame processing assembly includes an XY-axis translation mechanism, a rotational translation mechanism and an inner frame processing spindle coupled to the XY-axis translation mechanism. A holding fixture is provided at the driving end of the rotational translation mechanism. The holding fixture is located below the inner frame processing spindle and is used to clamp the frame blank to be processed.

5. The double-station mirror frame processing equipment according to claim 4, characterized in that: The holding fixture includes a first clamp and a second clamp, and the rotation and translation mechanism includes a first X-axis translation platform and a Z-axis rotation platform arranged on the first X-axis translation platform. The first clamp is arranged on the first X-axis translation platform, and the Z-axis rotation platform is provided with a second X-axis translation platform. The second clamp is arranged on the second X-axis translation platform and is located on the same horizontal processing plane as the first clamp to cooperate with clamping the frame blank to be processed; wherein, after the inner frame processing spindle completes the inner frame processing, the rotation and translation mechanism is configured to drive the second clamp to transfer the frame blank that has completed the inner frame processing and hold it at a preset handover position.

6. The double-station mirror frame processing equipment according to claim 4, characterized in that: The sub-frame includes a base frame and a side frame arranged perpendicular to the base frame; the rotation and translation mechanism is installed on the base frame and is located on the front side of the side frame, and a telescopic cover is also provided on the base frame. The holding fixture is exposed at the top of the telescopic cover, and the XY-axis translation mechanism is installed on the rear side of the side frame. The inner frame processing spindle is located on the front side of the side frame, so that the inner frame processing can be performed on the frame blank clamped by the holding fixture under the drive of the XY-axis translation mechanism.

7. The double-station mirror frame processing equipment according to claim 1, characterized in that: The multi-axis motion mechanism is a five-axis robot; or, the multi-axis motion mechanism includes a second X-axis translation mechanism, a Z-axis lifting mechanism arranged on the second X-axis translation mechanism, a Y-axis translation mechanism arranged on the Z-axis lifting mechanism, a first rotation mechanism arranged on the Y-axis translation mechanism, a loading base arranged on the first rotation mechanism, and a second rotation mechanism arranged on the loading base; the expansion clamp is arranged on the second rotation mechanism.

8. The double-station mirror frame processing equipment according to claim 7, characterized in that: The main frame includes a base frame, a tool holder suspension beam and two oppositely arranged support frames, and the two ends of the tool holder suspension beam are respectively fixedly connected to the two support frames to form an open chip removal space below the tool holder suspension beam; the rotating cutter disc is fixedly installed on the front side of the tool holder suspension beam; the second X-axis translation mechanism, Z-axis lifting mechanism, and Y-axis translation mechanism are arranged on the rear side of the tool holder suspension beam; wherein, the loading seat extends from the rear side of the tool holder suspension beam to the chip removal space.

9. A double-station mirror frame processing method, characterized in that: Frame processing is performed using the equipment described in any one of claims 1 to 8, the method comprising: on the sub-frame, using the inner frame processing assembly to perform inner frame processing on a first frame blank to obtain a second frame blank; and in parallel, on the main frame, using the rotating cutter head and the multi-axis motion mechanism to perform outer frame processing on the second frame blank.

10. The double-station mirror frame processing method according to claim 9, characterized in that: The method further includes: The inner frame processing assembly moves the first frame blank after the inner frame processing to a preset handover position; The multi-axis motion mechanism drives the expansion clamp along a preset arc trajectory and begins to enter the inner frame of the first frame blank in an inclined posture; During the process of the expansion clamp continuously entering the inner frame of the first frame blank, the multi-axis motion mechanism drives the expansion clamp to gradually adjust its posture from the inclined posture to the horizontal posture completely entering the inner frame of the first frame blank; After the expansion clamp expands the inner frame contour of the first frame blank, the inner frame processing assembly releases the first frame blank.

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