Vibration-damping double-station mirror frame processing equipment

Abstract

The application relates to a damping type double-station mirror frame processing equipment, which comprises a main frame, a sub-frame, and an elastic damping component. The main frame is provided with an outer frame processing station. The sub-frame is provided with an inner frame processing station. The elastic damping component is used for coupling the sub-frame to the main frame and blocking the vibration transmission between the main frame and the sub-frame during equipment operation. The designed damping type double-station mirror frame processing equipment is characterized in that the sub-frame carrying one processing station is connected to the main frame in a floating mode through the elastic damping component, the vibration transmission between the two processing stations is effectively isolated, the vibration generated during rough machining of one station does not interfere with fine machining of the other station, high-stability double-station parallel operation of the equipment is ensured, the machining efficiency of the whole machine is remarkably improved, and the machining precision and surface quality consistency of the final product are ensured.

Description

Technical Field

[0001] This application relates to the field of CNC machining equipment technology, and in particular to a vibration-damping dual-station mirror frame machining equipment. Background Technology

[0002] As a product that combines functionality and aesthetics, the processing precision, surface finish, and production efficiency of eyeglass frames are crucial to the final quality and market competitiveness of the product. To improve production efficiency, the industry commonly uses dual-station machining centers, which aim to shorten the processing cycle of a single product by having one station process the inner frame and the other station process the outer frame, through the collaborative work of the two stations.

[0003] However, existing dual-station frame processing equipment generally suffers from a series of interrelated technical bottlenecks in its structural design and working mode, specifically in the following aspects: Firstly, traditional designs typically employ a fixed frame blank while the cutting tool moves. In this mode, 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 massive mass and size, it exhibits a large moment of inertia. This directly leads to two problems: firstly, the acceleration and deceleration performance is limited during startup, shutdown, and high-speed turning, making it difficult to achieve higher machining speeds and thus limiting overall production efficiency; secondly, the huge inertia easily generates vibration and positioning overshoot during movement, especially during high-speed finishing, directly affecting machining accuracy and surface finish.

[0004] Secondly, in existing dual-station equipment, the two machining stations are typically rigidly mounted on the same base platform or frame. This rigid, shared structure leads to severe vibration coupling problems. When one station is performing roughing operations with high cutting forces, such as grooving or deep-cut milling, the resulting strong vibrations are transmitted unimpeded through the rigid frame to the other station. If the other station is simultaneously performing vibration-sensitive finishing operations, such as high-gloss chamfering or surface finishing, this external vibration interference can cause tool marks or vibration marks on the surface of the frame blank, severely damaging surface quality and leading to product scrap or the need for additional polishing processes. To avoid this problem, operators often have to adopt conservative serial or semi-parallel machining strategies, significantly reducing the efficiency advantages of the dual-station design. Utility Model Content

[0005] To address the aforementioned issues, this application provides a vibration-damping dual-station mirror frame processing device that effectively isolates vibration interference between workstations and ensures processing accuracy.

[0006] To achieve the above objectives, the vibration-damping dual-station mirror frame processing equipment designed in this application includes: The system includes a main frame with an outer frame machining station, a secondary frame with an inner frame machining station, and an elastic vibration damping assembly that couples the secondary frame to the main frame and isolates vibrations transmitted between the main frame and the secondary frame during operation. The inner frame machining station includes an inner frame machining spindle and a first fixture, both mounted on the secondary frame. The first fixture is used to hold the frame blank to be machined. The outer frame machining station includes an outer frame machining spindle and a second fixture, both mounted on the main frame. The inner and outer frame machining spindles can simultaneously machine the frame blank held by the first and second fixtures.

[0007] Preferably, the elastic 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 located below the sub-frame; the elastic body is disposed between the support seats and the sub-frame to provide cushioning.

[0008] Preferably, the support base and / or the sub-frame is provided with a horizontal extension; the elastic body includes: a first elastic member disposed between the horizontal extension and the sub-frame; a second elastic member disposed below the horizontal extension; and a connector that holds the first elastic member, the horizontal extension, the second elastic member, and the sub-frame together.

[0009] Preferably, the number of the support bases is at least three, and the at least three support bases are distributed in a triangular configuration.

[0010] Preferably, the subframe includes a base frame and a side frame mounted on the vertical base frame; the inner frame machining position further includes: an XY axis translation mechanism mounted on the side frame, the inner frame machining spindle being coupled to the XY axis translation mechanism to drive the inner frame machining spindle to move in the XY plane; and a rotational translation mechanism mounted on the base frame, the first fixture being coupled to the rotational translation mechanism.

[0011] Preferably, the first clamp includes a first gripper and a second gripper, and the rotation and translation mechanism includes a first X-axis translation platform and a Z-axis rotary table disposed on the first X-axis translation platform. The first gripper is disposed on the first X-axis translation platform, and a second X-axis translation platform is disposed on the Z-axis rotary table. The second gripper is disposed on the second X-axis translation platform and is located on the same horizontal processing plane as the first gripper to clamp the frame blank. After the inner frame processing is completed, the rotation and translation mechanism is configured to drive the second gripper to transfer and maintain the frame blank with the completed inner frame processing at a preset handover position.

[0012] Preferably, the main frame includes a base frame, two support frames, and a tool holder suspension beam connected between the two support frames; the outer frame machining spindle is fixedly installed on the tool holder suspension beam; the outer frame machining position also includes a multi-axis motion mechanism, the second fixture is installed at the end of the multi-axis motion mechanism, the multi-axis motion mechanism is used to drive the second fixture to translate and rotate in three-dimensional space, so as to cooperate with the outer frame machining spindle to complete the outer frame machining.

[0013] Preferably, the multi-axis motion mechanism includes a third X-axis translation mechanism disposed on the tool holder suspension beam, a Z-axis lifting mechanism disposed on the third X-axis translation mechanism, a Y-axis translation mechanism disposed on the Z-axis lifting mechanism, a first rotation mechanism disposed on the Y-axis translation mechanism, a loading seat disposed on the first rotation mechanism, and a second rotation mechanism disposed on the loading seat; the second clamp is disposed on the second rotation mechanism.

[0014] Preferably, the second clamp is an internal expansion clamp, which is suitable for clamping the frame blank by expanding the inner frame contour that has been processed.

[0015] The vibration-damping dual-station mirror frame processing equipment designed in this application effectively isolates the vibration transmission between the two processing stations by using an elastic vibration damping component to float the auxiliary frame that carries one processing station. This avoids the vibration generated during rough processing at one station from interfering with the fine processing at the other station, thus ensuring that the equipment can achieve highly stable parallel operation of the two stations. This not only significantly improves the overall processing efficiency of the machine, but also ensures the consistency of the processing accuracy and surface quality of the final product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the vibration-damping dual-station mirror frame processing equipment provided in the embodiments of this application.

[0017] Figure 2 yes Figure 1 The right view.

[0018] Figure 3 This is a structural schematic diagram of the vibration-damping dual-station mirror frame processing equipment provided in the embodiments of this application from another perspective.

[0019] Figure 4 This is another structural schematic diagram of the vibration-damping dual-station mirror frame processing equipment provided in the embodiments of this application.

[0020] Figure 5 This is a structural schematic diagram of the vibration-damping dual-station mirror frame processing equipment provided in the embodiments of this application from another perspective.

[0021] The components include: main frame 10, base frame 11, support frame 12, tool holder cantilever beam 13, auxiliary frame 20, base frame 21, side frame 22, elastic damping assembly 30, support seat 31, horizontal extension 311, elastic body 32, first elastic element 321, second elastic element 322, connector 323, inner frame machining spindle 40, XY axis translation mechanism 41, first clamp 50, first gripper 51, second gripper 52, outer frame machining spindle 60, second clamp 70, rotation and translation mechanism 80, first X-axis translation platform 81, Z-axis rotary table 82, second X-axis translation platform 83, multi-axis motion mechanism 90, third X-axis translation mechanism 91, Z-axis lifting mechanism 92, Y-axis translation mechanism 93, first rotation mechanism 94, loading seat 95, second rotation mechanism 96, and frame blank 100. Detailed Implementation

[0022] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0023] like Figures 1 to 5 As shown, the vibration-damping dual-station mirror frame processing equipment described in this embodiment mainly includes a main frame 10, a secondary frame 20, an elastic vibration damping component 30, an inner frame processing spindle 40, a first fixture 50, an outer frame processing spindle 60, and a second fixture 70.

[0024] Specifically, the main frame 10 serves as the basic load-bearing structure of the entire equipment, on which an outer frame machining area is integrated and defined. The secondary frame 20, on the other hand, is a relatively independent load-bearing platform, on which an inner frame machining area is integrated and defined.

[0025] like Figure 1 , Figure 2 , Figure 5 As shown, the elastic vibration damping component 30 couples the sub-frame 20 to the main frame 10 and serves to block vibrations transmitted between the main frame 10 and the sub-frame 20 during equipment operation. That is, the sub-frame 20 is not rigidly connected to the main frame 10, but rather coupled to the main frame 10 in a flexible, relatively micro-moving manner via the elastic vibration damping component 30. During equipment operation, vibrations generated by processing activities on the main frame 10 are effectively absorbed, buffered, and blocked by the elastic vibration damping component 30 in the path transmitted to the sub-frame 20. This allows the sub-frame 20 and its mounted inner frame processing position to maintain a relatively stable working environment, avoiding vibration interference from the main frame 10, thus creating conditions for simultaneous high-precision processing at both workstations.

[0026] In this embodiment, the inner frame machining station includes an inner frame machining spindle 40 and a first fixture 50, both of which are mounted on the sub-frame 20. The first fixture 50 is used to hold the frame blank 100 to be machined. During inner frame machining, the inner frame machining spindle 40 or the first fixture 50, or both, can be designed to perform corresponding multi-axis movements to complete the cutting of the inner contour of the frame blank 100. Since the entire inner frame machining station is located on the isolated sub-frame 20, the stability of its machining process is ensured.

[0027] Meanwhile, the outer frame processing station includes an outer frame processing spindle 60 and a second fixture 70, both of which are mounted on the main frame 10. Understandably, the outer frame processing station can employ a different motion mode than the inner frame processing station. For example, the outer frame processing spindle 60 remains stationary, while the second fixture 70 is mounted on a multi-axis motion mechanism, driving the already processed inner frame blank 100 to perform a combination of translational and rotational spatial motion to cooperate with the fixed outer frame processing spindle 60 in completing the outer frame contour processing. This effectively reduces the inertia of the moving parts, thereby effectively improving processing speed and production efficiency.

[0028] With the above arrangement, the inner frame machining spindle 40 and the outer frame machining spindle 60 can simultaneously machine the mirror frame blank 100 held by the first fixture 50 and the second fixture 70. For example, when the outer frame machining position is performing rough machining with a large cutting amount, the resulting severe vibration will be isolated by the elastic damping component 30, and will not affect the inner frame machining position which is performing high-gloss finishing. Thus, while ensuring high machining accuracy, the total machining time of a single workpiece is effectively shortened, and the overall production efficiency of the machine is improved.

[0029] In some embodiments, such as Figure 2 As shown, the elastic vibration damping component 30 includes multiple support seats 31 and at least one elastic body 32. The multiple support seats 31 are fixed to the main frame 10 and located below the sub-frame 20. The elastic body 32 is disposed between the support seats 31 and the sub-frame 20 to provide cushioning. In this embodiment, the number of support seats 31 is at least three, and the at least three support seats 31 are distributed in a triangular configuration to provide stable support for the sub-frame 20. When the equipment vibrates during operation, the elastic body 32 undergoes elastic deformation, thereby absorbing and dissipating vibration energy, playing a cushioning role, and preventing the direct, rigid transmission of vibration between the main frame 10 and the sub-frame 20.

[0030] In specific implementation, such as Figure 2 , Figure 3As shown, the support base 31 and / or the sub-frame 20 are provided with a horizontal extension. For example, the support base 31 is generally L-shaped and includes a horizontal extension 311. The elastic body 32 includes a first elastic element 321, a second elastic element 322, and a connecting element 323. The first elastic element 321 can be a cylinder or block made of a highly elastic material such as rubber or polyurethane, and it is located between the horizontal extension 311 and the sub-frame 20. Similarly, the structure and material of the second elastic element 322 can be the same as the first elastic element 321, and it is located below the horizontal extension 311 to cooperate with the first elastic element 321, which mainly bears the gravity from the sub-frame 20 and the impact force generated during processing.

[0031] Meanwhile, in order to securely connect the above components together, the connector 323 can be a combination of bolts or pins with washers. The installation path of the connector 323 is to pass through the second elastic member 322, the horizontal extension 311 of the support base 31, and the first elastic member 321 from bottom to top, and finally to achieve a threaded connection or lock with a nut to the sub-frame 20, so as to fix the first elastic member 321, the horizontal extension 311, the second elastic member 322 and the sub-frame 20 into one, and achieve bidirectional vibration reduction.

[0032] In some embodiments, such as Figure 1 , Figure 2 As shown, the subframe 20 includes a base frame 21 and a side frame 22 arranged vertically to the base frame; the inner frame processing position also includes an XY axis translation mechanism 41 and a rotation translation mechanism 80.

[0033] The XY-axis translation mechanism 41 is mounted on the side frame 22, and the inner frame machining spindle 40 is coupled to the XY-axis translation mechanism 41 to drive the inner frame machining spindle 40 to move in the XY plane. In a specific implementation, this mechanism can consist of mutually perpendicular X-axis and Z-axis linear guides and corresponding servo motors. The inner frame machining spindle 40 is coupled to the motion slider of the XY-axis translation mechanism 41. By controlling the movement of the XY-axis translation mechanism 41, the inner frame machining spindle 40 can be driven to perform precise two-dimensional translational movement in the XY plane perpendicular to the base frame 21. This allows the tool to flexibly perform tool insertion, tool retraction, and horizontal cutting along specific contours.

[0034] Meanwhile, the rotation and translation mechanism 80 is mounted on the base frame 21, and the first clamp 50 is coupled to the rotation and translation mechanism 80. In specific implementation, the rotation and translation mechanism 80 itself can be a multi-axis motion module integrating translation and rotation functions. For example, it includes at least one X translation axis and one Z rotation axis to cooperate with the movement of the XY plane of the inner frame machining main shaft 40 to complete the machining of the inner frame contour of the mirror frame blank 100.

[0035] In specific implementation, such as Figure 1 , Figure 3 As shown, the first clamp 50 includes a first jaw 51 and a second jaw 52. The rotation and translation mechanism 80 includes a first X-axis translation platform 81 and a Z-axis rotary table 82 disposed on the first X-axis translation platform 81. The first jaw 51 is disposed on the first X-axis translation platform 81, and a second X-axis translation platform 83 is disposed on the Z-axis rotary table 82. The second jaw 52 is disposed on the second X-axis translation platform 83 and is located on the same horizontal machining plane as the first jaw 51 to clamp the frame blank 100. This structural design ensures coplanarity of the clamping when the two jaws are jointly clamping the frame blank 100 without the need for an additional height adjustment mechanism in the Z-axis direction, thereby avoiding unnecessary stress or deformation to the frame blank 100. In this embodiment, both the first jaw 51 and the second jaw 52 are pneumatic jaws.

[0036] After the inner frame processing is completed, the rotation and translation mechanism 80 is configured to drive the second gripper 52 to transfer and hold the completed inner frame blank 100 at a preset handover position. At this position, such as... Figure 3 As shown, the frame blank 100 is suspended outside the main body of the Z-axis rotary table 82, forming a completely open and mechanically free operating space below and inside it, ready for the first fixture 50 of the outer frame processing position to come and receive it.

[0037] In some embodiments, such as Figure 1 , Figure 3 , Figure 4 As shown, the main frame 10 includes a base frame 11, two support frames 12, and a tool holder suspension beam 13 connected between the two support frames 12; the outer frame machining spindle 60 is fixedly mounted on the tool holder suspension beam 13; the outer frame machining position also includes a multi-axis motion mechanism 90, and the second clamp 70 is mounted at the end of the multi-axis motion mechanism 90. The multi-axis motion mechanism 90 is used to drive the second clamp 70 to translate and rotate in three-dimensional space to cooperate with the outer frame machining spindle 60 to complete the outer frame machining. In this embodiment, the second clamp 70 is an internal expansion clamp, which is suitable for clamping the frame blank 100 by expanding and tightening the already machined inner frame contour of the frame blank 100.

[0038] In practical implementation, the outer frame machining spindle 60 adopts a cutter head structure, on which multiple cutter heads of different specifications or models are mounted. During the entire outer frame machining process, the outer frame machining spindle 60 itself does not perform translational movements in the X, Y, and Z directions, but only performs its own rotation and tool changing actions. This design makes the heaviest component, namely the outer frame machining spindle 60 and its drive system, a stationary component, effectively avoiding speed bottlenecks and vibration problems caused by large inertia movements. In conjunction with this, the multi-axis motion mechanism 90 can be a multi-axis robot. The second clamp 70 is mounted on the end effector of the multi-axis motion mechanism 90 to drive the second clamp 70 and the frame blank 100 it holds to perform multiple composite movements in three-dimensional space, such as multiple movements in the X, Y, and Z directions and multiple rotations around the X, Y, and Z axes, thereby efficiently and smoothly completing the machining of all complex features of the frame blank 100, such as the outer frame contour, chamfers, and curved surfaces.

[0039] In another specific embodiment, such as Figure 1 , Figure 4 As shown, the multi-axis motion mechanism 90 includes a third X-axis translation mechanism 91 disposed on the tool holder suspension beam 13, a Z-axis lifting mechanism 92 disposed on the third X-axis translation mechanism 91, a Y-axis translation mechanism 93 disposed on the Z-axis lifting mechanism 92, a first rotation mechanism 94 disposed on the Y-axis translation mechanism 93, a loading seat 95 disposed on the first rotation mechanism 94, and a second rotation mechanism 96 disposed on the loading seat 95; the second clamp 70 is disposed on the second rotation mechanism 96.

[0040] The vibration-damping dual-station mirror frame processing equipment provided in this application effectively isolates the vibration transmission between the two processing stations by using an elastic vibration damping component to float the auxiliary frame that carries one processing station. This avoids the vibration generated during rough processing at one station from interfering with the fine processing at the other station, thus ensuring that the equipment can achieve highly stable parallel operation of the two stations. This not only significantly improves the overall processing efficiency of the machine, but also ensures the consistency of the processing accuracy and surface quality of the final product.

[0041] In the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] Finally, it should be noted that the above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A vibration-damping dual-station mirror frame processing equipment, characterized in that, include: The main frame has an outer frame processing station on it; A sub-frame is provided with an inner frame machining position; an elastic vibration damping component couples the sub-frame to the main frame to block vibrations transmitted between the main frame and the sub-frame during equipment operation; wherein, the inner frame machining position includes an inner frame machining spindle and a first fixture, both of which are mounted on the sub-frame, and the first fixture is used to hold the frame blank to be processed; the outer frame machining position includes an outer frame machining spindle and a second fixture, both of which are mounted on the main frame; the inner frame machining spindle and the outer frame machining spindle can simultaneously process the frame blank held by the first fixture and the second fixture.

2. The vibration-damping dual-station mirror frame processing equipment according to claim 1, characterized in that, The elastic damping assembly includes multiple support seats and at least one elastic body. The multiple support seats are fixed to the main frame and located below the sub-frame. The elastic body is disposed between the support seats and the sub-frame to provide cushioning.

3. The vibration-damping dual-station mirror frame processing equipment according to claim 2, characterized in that, The support base and / or sub-frame is provided with a horizontal extension; the elastic body includes: a first elastic element disposed between the horizontal extension and the sub-frame; a second elastic element disposed below the horizontal extension; and a connector that holds the first elastic element, the horizontal extension, the second elastic element, and the sub-frame together.

4. The vibration-damping dual-station mirror frame processing equipment according to claim 2 or 3, characterized in that, The number of the supports is at least three, and the at least three supports are distributed in a triangular configuration.

5. The vibration-damping dual-station mirror frame processing equipment according to claim 1, characterized in that, The subframe includes a base frame and a side frame mounted on the vertical base frame; the inner frame machining position further includes: an XY axis translation mechanism, mounted on the side frame, the inner frame machining spindle being coupled to the XY axis translation mechanism to drive the inner frame machining spindle to move in the XY plane; and a rotary translation mechanism, mounted on the base frame, the first fixture being coupled to the rotary translation mechanism.

6. The vibration-damping dual-station mirror frame processing equipment according to claim 5, characterized in that, The first clamp includes a first gripper and a second gripper. The rotation and translation mechanism includes a first X-axis translation platform and a Z-axis rotary table disposed on the first X-axis translation platform. The first gripper is disposed on the first X-axis translation platform, and a second X-axis translation platform is disposed on the Z-axis rotary table. The second gripper is disposed on the second X-axis translation platform and is located on the same horizontal processing plane as the first gripper to clamp the frame blank. After the inner frame processing is completed, the rotation and translation mechanism is configured to drive the second gripper to transfer and maintain the frame blank with the inner frame processing completed at a preset handover position.

7. The vibration-damping dual-station mirror frame processing equipment according to claim 1, characterized in that, The main frame includes a base frame, two support frames, and a tool holder suspension beam connected between the two support frames; the outer frame machining spindle is fixedly mounted on the tool holder suspension beam; the outer frame machining position also includes a multi-axis motion mechanism, and the second fixture is mounted at the end of the multi-axis motion mechanism. The multi-axis motion mechanism is used to drive the second fixture to translate and rotate in three-dimensional space to cooperate with the outer frame machining spindle to complete the outer frame machining.

8. The vibration-damping dual-station mirror frame processing equipment according to claim 7, characterized in that, The multi-axis motion mechanism includes a third X-axis translation mechanism mounted on the tool holder suspension beam, a Z-axis lifting mechanism mounted on the third X-axis translation mechanism, a Y-axis translation mechanism mounted on the Z-axis lifting mechanism, a first rotation mechanism mounted on the Y-axis translation mechanism, a loading seat mounted on the first rotation mechanism, and a second rotation mechanism mounted on the loading seat; the second clamp is mounted on the second rotation mechanism.

9. The vibration-damping dual-station mirror frame processing equipment according to claim 7 or 8, characterized in that, The second clamp is an internal expansion clamp, which is suitable for clamping the frame blank by expanding the inner frame contour that has been processed.

Images