Multi-station double-force-control polishing machine tool

Abstract

The invention relates to the technical field of polishing machining, and discloses a multi-station double-force-control polishing machine tool which comprises a rotation assembly extending in the first direction, a plurality of polishing assemblies and a plurality of supporting assemblies, and the multiple polishing assemblies and the multiple supporting assemblies are sequentially arranged in the first direction. The supporting assembly comprises a first conveying mechanism extending in the third direction, a second conveying mechanism extending in the second direction and a supporting mechanism, the second conveying mechanism is arranged at the conveying end of the first conveying mechanism, and the supporting mechanism is arranged at the conveying end of the second conveying mechanism; the supporting mechanism is provided with a supporting station used for containing a workpiece and a double-force-control monitoring mechanism, and the double-force-control monitoring mechanism is used for monitoring the force change in the machining process and controlling the first conveying mechanism and the second conveying mechanism to operate. According to the multi-station double-force-control polishing machine tool, multi-direction control is achieved through the double-force-control monitoring mechanism, the rough polishing mechanism and the fine polishing mechanism are switched through the rotation assembly in the same clamping state, and therefore the polishing consistency and the production efficiency are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of polishing technology, specifically to a multi-station dual-force control polishing machine. Background Technology

[0002] With the increasing demands for surface quality in consumer electronics, precision instruments, and automotive parts industries, polishing equipment is developing towards higher precision, greater consistency, and automation. However, its force control mechanisms often only adjust contact pressure in a single direction, failing to provide multi-directional dynamic compensation based on changes in workpiece curvature or position during polishing. This results in uneven pressure distribution across different workstations and curvature areas, easily leading to bright or dark bands on the polished surface, or over-polishing at the edges. Therefore, multi-station dual-force control polishing machines can be used to improve polishing quality. Furthermore, in the manufacturing of exterior parts such as smartphone frames, watch cases, camera decorative rings, and ceramic structural components, the product surface often requires multiple stages, including rough polishing, fine polishing, and mirror polishing, to achieve the required mirror finish.

[0003] Currently, existing multi-station automatic polishing machine tools generally suffer from the problem of single control. Polishing methods mostly rely on head changing or separate machine processing, which not only results in low production cycle and high labor intensity, but also easily generates small positioning deviations during multiple clamping processes. This leads to uneven transitions and discontinuous gloss on the same workpiece between different polishing stages. Existing equipment usually requires head changing or machine rotation to switch between different abrasives during the rough polishing and fine polishing stages, which increases downtime and introduces cumulative positioning errors during reclamping, seriously affecting processing efficiency and surface continuity. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-station dual-force control polishing machine tool, which achieves multi-directional constant pressure control through a dual-force control monitoring mechanism, and automatically switches between rough polishing and fine polishing mechanisms through a rotary component in the same clamping state, thereby significantly improving polishing consistency and production efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: Design a multi-station dual-force control polishing machine tool, including a rotary component extending along a first direction, multiple polishing components and multiple support components arranged sequentially along the first direction; The support assembly includes a first conveying mechanism extending in a third direction, a second conveying mechanism extending in a second direction, and a support mechanism. The second conveying mechanism is disposed at the conveying end of the first conveying mechanism, and the support mechanism is disposed at the conveying end of the second conveying mechanism. The support mechanism is equipped with a support station for placing the workpiece and a dual force control monitoring mechanism. The dual force control monitoring mechanism is used to monitor the force changes during the processing and control the operation of the first conveying mechanism and the second conveying mechanism. The polishing assembly includes a first polishing mechanism and a second polishing mechanism, which are sequentially arranged on a rotary assembly. The rotary assembly has a first position and a second position along the rotation direction. When the rotary assembly is in the first position, the polishing end of the first polishing mechanism corresponds to the support station. When the rotary assembly rotates to the second position along the rotation direction, the polishing end of the second polishing mechanism corresponds to the support station.

[0006] Optionally, the polishing assembly further includes a cutting fluid mechanism, which includes a coarse condenser and a fine condenser. The input end of the coarse condenser is used to recover the cutting fluid, and the output end of the coarse condenser is used to spray the recovered and filtered cutting fluid when the rotary assembly is in the first position. The output end of the fine condenser is used to spray the cutting fluid when the rotary assembly is in the second position.

[0007] Optionally, the coarse condenser includes a first condenser manifold extending along a first direction, and a plurality of first condenser hoses are sequentially arranged on the first condenser manifold along the first direction. The ends of the plurality of first condenser hoses away from the first condenser manifold all face the corresponding support position. The first condenser hoses are located above the support position and gradually tilt in the direction away from the support position. The input end of the first condenser manifold is connected to the coarse cutting fluid cylinder.

[0008] Optionally, the fine condenser includes a second condenser manifold extending along a first direction, with a plurality of second condenser hoses sequentially arranged on the second condenser manifold along the first direction. The ends of the plurality of second condenser hoses away from the second condenser manifold all face the corresponding support position. The second condenser hoses are located below the support position and gradually tilt in the direction away from the support position. The input end of the second condenser manifold is connected to the cutting fluid cylinder.

[0009] Optionally, the rotary assembly includes a mounting platform, a rotary motor, and a rotary shaft. The fixed end of the rotary motor is fixedly connected to one end of the mounting platform. The rotary shaft is rotatably connected to the mounting platform, and one end extends out of the mounting platform and connects to the output end of the rotary motor. The first polishing mechanism and the second polishing mechanism are both mounted on the rotary shaft, and the first polishing mechanism and the second polishing mechanism are arranged perpendicular to each other.

[0010] Optionally, both the first polishing mechanism and the second polishing mechanism include dual-head motors, and the adjacent dual-head motors are arranged perpendicularly to each other and distributed sequentially along the first direction.

[0011] Optionally, it also includes a control mechanism, which includes a first spring contact, a second spring contact, a third spring contact and a fourth spring contact arranged sequentially along the circumferential direction of the inner wall of the mounting platform. The first spring contact and the second spring contact are connected in series in the liquid supply circuit of the coarse condenser, and the third spring contact and the fourth spring contact are connected in series in the liquid supply circuit of the fine condenser. The control mechanism also includes a conductive block, which is disposed at one end of the rotating shaft and is used to connect with the first spring contact, the second spring contact, the third spring contact and the fourth spring contact as the rotating shaft rotates.

[0012] Optionally, a third conveying mechanism is also included, which includes a base and a third conveying motor. The fixed end of the third conveying motor is fixedly connected to the base, and the output end of the third conveying motor is fixedly connected to a third lead screw. The outer surface of the third lead screw is threadedly connected to a slide table, and the fixed end of the first conveying mechanism is fixedly connected to the slide table.

[0013] Optionally, the first conveying mechanism includes a first conveying motor, the output end of the first conveying motor is fixedly connected to a first lead screw extending in a third direction, the outer surface of the first lead screw is threadedly connected to a first push block, and the fixed end of the second conveying mechanism is fixedly connected to the first push block.

[0014] Optionally, the second conveying mechanism includes a second conveying motor, the output end of which is fixedly connected to a second lead screw extending in a second direction, the outer surface of which is threadedly connected to a second push block, and one end of the support mechanism is fixedly connected to the second push block.

[0015] This invention provides a multi-station dual-force control polishing machine tool, which has the following beneficial effects: This multi-station dual-force control polishing machine uses a dual-force control monitoring mechanism to detect the pressure applied during the polishing process in real time. It can dynamically adjust the position of the corresponding workpiece in the third and second directions via the first and second conveying mechanisms, respectively, ensuring that the workpiece maintains constant contact pressure on the support station. This guarantees consistency in polishing quality and removal volume. When the rotary assembly is in the first position, the polishing end of the first polishing mechanism is opposite to the support station for rough polishing. When the rotary assembly rotates to the second position, the polishing end of the second polishing mechanism is opposite to the support station for fine polishing. This achieves integrated rough and fine polishing, allowing different stages of polishing to be completed under the same workpiece clamping condition without workpiece repositioning or machine rotation. This avoids positioning errors and surface discontinuities caused by multiple clamping or transfers. The switching of the rotary assembly enables rapid conversion between rough and fine polishing tools, significantly reducing manual intervention and downtime for head changes. This further improves overall processing efficiency while enabling simultaneous multi-station processing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the multi-station dual-force control polishing machine tool in this invention; Figure 2 This is a three-dimensional structural diagram of the support component in this invention; Figure 3 This is a three-dimensional structural diagram of the polishing component in this invention; Figure 4 This is a side view sectional structural diagram of the control mechanism in this invention; Figure 5 This is a schematic diagram of the working process of the fine condenser in this invention.

[0017] In the diagram: 10. Polishing assembly; 11. First polishing mechanism; 12. Second polishing mechanism; 14. Cutting fluid mechanism; 141. Coarse condenser; 1411. First condenser manifold; 1412. First condenser hose; 142. Fine condenser; 1421. Second condenser manifold; 1422. Second condenser hose; 20. Support assembly; 21. First conveying mechanism; 22. Second conveying mechanism; 23. Support mechanism; 30. Rotary assembly; 31. Mounting platform; 32. Rotary motor; 33. Rotary shaft; 40. Control mechanism; 41. First spring contact; 42. Second spring contact; 43. Third spring contact; 44. Fourth spring contact; 45. Conductive block; 50. Third conveying mechanism; 51. Slide table; 52. Base. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a technical solution: a polishing machine tool, applied to multi-station processing scenarios. Through dual force control, it can perform processing at multiple stations simultaneously. Each station can be adaptively adjusted to improve processing accuracy and product quality. At the same time, it can perform step-by-step processing without changing equipment, ensuring processing accuracy and product quality while improving processing efficiency.

[0020] Please see Figures 1 to 5 The present invention provides a technical solution: a multi-station dual-force control polishing machine tool, including a rotary component 30 extending along a first direction, a plurality of polishing components 10 and a plurality of support components 20 arranged sequentially along the first direction; The support assembly 20 includes a first conveying mechanism 21 extending in a third direction, a second conveying mechanism 22 extending in a second direction, and a support mechanism 23. The second conveying mechanism 22 is disposed at the conveying end of the first conveying mechanism 21, and the support mechanism 23 is disposed at the conveying end of the second conveying mechanism 22. The support mechanism 23 is equipped with a support station for placing the workpiece and a dual force control monitoring mechanism. The dual force control monitoring mechanism is used to monitor the force changes during the processing and control the operation of the first conveying mechanism 21 and the second conveying mechanism 22. The polishing assembly 10 includes a first polishing mechanism 11 and a second polishing mechanism 12. The first polishing mechanism 11 and the second polishing mechanism 12 are sequentially arranged on the rotary assembly 30. The rotary end of the rotary assembly 30 is provided with a first position and a second position along the rotation direction. When the rotary end of the rotary assembly 30 is in the first position, the polishing end of the first polishing mechanism 11 corresponds to the support station. When the rotary end of the rotary assembly 30 rotates to the second position along the rotation direction, the polishing end of the second polishing mechanism 12 corresponds to the support station. The first conveying mechanism 21 is responsible for the longitudinal transport of the workpiece in the third direction. The second conveying mechanism 22 takes over from the output end of the first conveying mechanism 21 and completes the vertical transport and positioning of the workpiece in the second direction. A dual-force control monitoring mechanism is installed on the support station. The dual-force control monitoring mechanism is a known technology and can be a dual-force control sensor. It is only mentioned here and will not be elaborated on in detail. Its purpose is to collect the force changes during the polishing contact process in real time (including at least the components in the second and third directions) and to control the micro-displacement and feed cycle of the first conveying mechanism 21 and the second conveying mechanism 22 in a closed loop. Fine adjustments are made to compensate for the angle position so that the workpiece relative to the polishing end maintains the target contact pressure and indentation in the second and third directions, thereby stabilizing the contact spot and removal rate, ensuring the polishing consistency of each station, and thus preventing the abnormal station from continuing to generate cumulative errors due to following the unified operation of the whole when multiple stations are processing simultaneously, even if a deviation occurs in a single station. To ensure that each station can complete the processing task relatively independently and accurately, the rotary assembly 30 has two stable stations, a first position and a second position. When the rotary end of the rotary assembly 30 is in the first position, the polishing end of the first polishing mechanism 11 is directly opposite the support station and is used to perform rough polishing. When the rotary end of the rotary assembly 30 rotates to the second position along the rotation direction, the second polishing mechanism 12 is directly opposite the support station and is used to perform fine polishing. Through the rapid and repeatable locking of the rotary assembly 30, the seamless switching between rough polishing and fine polishing tools under the same clamping is achieved, saving the time and error accumulation of changing machines and re-clamping and setting tools. With the help of the dual force control monitoring mechanism, the workpiece is compensated in the second and third directions, so that the roughing and fine polishing stages are completed continuously under a unified reference surface and constant normal load, which not only improves the surface quality and surface consistency, but also significantly improves the overall processing efficiency under the condition of multiple stations in parallel. The rotating end of the rotating component 30 is initially located between the first position and the second position. When in use, the rotating end of the rotating component 30 will first rotate back to the first position.

[0021] The pressure applied during the polishing process is detected in real time by a dual-force control monitoring mechanism. The positions of the corresponding workpieces in the third and second directions can be dynamically adjusted by the first conveying mechanism 21 and the second conveying mechanism 22, respectively, so that the workpieces can maintain constant contact pressure on the support station, ensuring the consistency of polishing quality and removal amount. When the rotary component 30 is in the first position, the polishing end of the first polishing mechanism 11 is opposite to the support station for rough polishing. When the rotary component 30 rotates to the second position, the polishing end of the second polishing mechanism 12 is opposite to the support station for fine polishing. This achieves integrated rough and fine polishing processing, and different stages of polishing can be completed under the same workpiece clamping state without the need for workpiece repositioning or machine rotation. This avoids positioning errors and surface discontinuities caused by multiple clamping or transfer. By switching the rotary component 30, the rapid conversion between rough and fine polishing abrasives is achieved, greatly reducing manual intervention and downtime for head changing. This further improves the overall processing efficiency while processing at multiple stations simultaneously.

[0022] In this embodiment, as a preferred option, the polishing assembly 10 further includes a cutting fluid mechanism 14. The cutting fluid mechanism 14 includes a coarse condenser 141 and a fine condenser 142. The input end of the coarse condenser 141 is used to recover the cutting fluid, and the output end of the coarse condenser 141 is used to spray the recovered and filtered cutting fluid when the rotary assembly 30 is in the first position. The output end of the fine condenser 142 is used to spray the cutting fluid when the rotary assembly 30 is in the second position. The cutting fluid mechanism 14 provides differentiated fluid supply and recovery during rough polishing (polishing stage of the first polishing mechanism 11) and fine polishing (polishing stage of the second polishing mechanism 12). Specifically, the cutting fluid mechanism 14 includes a coarse condenser 141 and a fine condenser 142, which are independent of each other. The input end of the coarse condenser 141 is connected to the machine tool recovery pipeline and preferentially receives the mixture of return fluid and grinding debris from the rough polishing and fine polishing processes. After condensation and cooling and multi-stage separation or filtration within the coarse condenser 141, the output end of the coarse condenser 141 sprays fluid corresponding to the first position of the rotary assembly 30. That is, when the rotary assembly 30 is locked in the first position and the polishing end of the first polishing mechanism 11 is opposite to the support position, fluid is sprayed. The output end sprays the recovered and filtered cutting fluid into the processing area to achieve high-flow flushing, cooling and chip removal during the rough polishing stage. The fine condenser 142 can be connected to a relatively clean fluid supply branch, that is, brand new cutting fluid or cutting fluid that has undergone relatively fine filtration. The output end of the fine condenser 142 sprays fluid corresponding to the second position of the rotary assembly 30. That is, when the rotary assembly 30 rotates to the second position and the polishing end of the second polishing mechanism 12 is opposite to the support station, the fine condenser 142 sprays cutting fluid with higher cleanliness and stricter particle size control (which can be new fluid or cutting fluid for fine polishing that has undergone relatively high-precision condensation and purification) to form a thin and uniform lubrication reaction film, which meets the requirements of fine polishing for surface cleanliness and stable film formation.

[0023] In this embodiment, as a preferred option, the coarse condenser 141 includes a first condenser main pipe 1411 extending along a first direction. A plurality of first condenser hoses 1412 are sequentially arranged on the first condenser main pipe 1411 along the first direction. The ends of the plurality of first condenser hoses 1412 away from the first condenser main pipe 1411 are all facing the corresponding support position. The first condenser hoses 1412 are located above the support position and gradually tilt in the direction away from the support position. The input end of the first condenser main pipe 1411 is connected to the coarse cutting fluid cylinder. The first condenser manifold 1411 extends parallel to the machine tool layout direction, and its input end is connected to the coarse cutting fluid cylinder (the recovered cutting fluid, after condensation and cooling and coarse and fine filtration, enters the first condenser manifold 1411). A pump (water pump) is installed inside the first condenser manifold 1411 or the coarse cutting fluid cylinder to transport the recovered cutting fluid into the first condenser manifold 1411. This is existing technology and will not be described in detail here. Multiple first condenser hoses 1412 are sequentially branched off from the manifold according to the workstation cycle. The number of first condenser hoses 1412 corresponds to the number of supporting workstations, and the number of first polishing mechanisms 11 and second polishing mechanisms 12 also corresponds to the number of supporting workstations. The nozzle at the end of each first condenser hose 1412 faces the opposite direction. The corresponding support station is used to spray the recovered and filtered cutting fluid directionally onto the station when the rotary assembly 30 is in the first position and rough polishing is performed. The parallel arrangement of multiple hoses is connected to the inner diameter of the first condenser main pipe 1411, which enables multiple first condenser hoses 1412 to be flushed and dissipated under the synchronous processing of the support station. In order to suppress residual liquid dripping, secondary pollution and back adhesion that are common in rough polishing, each first condenser hose 1412 is arranged above the support station, but the tube body of the first condenser hose 1412 is gradually tilted away from the support station. At the same time, the tilting setting can reduce the liquid hanging and accumulation at the nozzle end when the first condenser hose 1412 stops spraying liquid, reduce the probability of atomization falling back onto the workpiece surface, and improve the surface cleanliness and visibility in the rough polishing stage.

[0024] In this embodiment, as a preferred option, the fine condenser 142 includes a second condenser main pipe 1421 extending along a first direction. A plurality of second condenser hoses 1422 are sequentially arranged on the second condenser main pipe 1421 along the first direction. The ends of the plurality of second condenser hoses 1422 away from the second condenser main pipe 1421 are all facing the corresponding support position. The second condenser hoses 1422 are located below the support position and gradually tilted along the direction away from the support position. The input end of the second condenser main pipe 1421 is connected to the cutting fluid cylinder. The flow rate of the first condenser hose 1412 is greater than the flow rate of the second condenser hose 1422. The inlet of the second condenser main pipe 1421, which is arranged along the first direction, is connected to the cutting fluid cylinder (fine polishing cleaning fluid). A pump body (water pump) is installed inside the second condenser main pipe 1421 or the cutting fluid cylinder to deliver brand new cutting fluid or finely filtered cutting fluid into the second condenser main pipe 1421. The second condenser main pipe 1421 branches into multiple second condenser hoses 1422 sequentially according to the support positions. The number of second condenser hoses 1422 corresponds to the number of support positions. The spray nozzle at the end of each second condenser hose 1422 faces the corresponding support position. Unlike the upper spray of the coarse condenser 141, the second condenser hoses 1422 are located entirely below the support positions, and the hose body gradually slopes away from the support positions. On the one hand, the nozzle of the second condensing hose 1422 can approach the polishing incident area from bottom to top. On the other hand, when spraying stops, gravity allows the residual liquid at the end to flow back to the second condensing main pipe 1421. In order to penetrate the air curtain generated by the rotation of the polishing end (i.e., the rotating grinding head) surface of the second polishing mechanism 12 and establish a thin and uniform lubricating reaction film at the contact inlet between the polishing end and the workpiece, the nozzle is preferably a cylindrical high-coherence jet or a narrow fan-shaped nozzle. The spray angle relative to the tangential elevation angle of the polishing end is 15–30°, and the horizontal projection distance from the nozzle to the contact inlet is 8–15 mm. The effective tangential component of the spray velocity is recommended to be 0.8–1.2 times the linear velocity of the grinding head surface, and the flow rate in the fine polishing stage is 20–40% of that in the rough polishing stage. The second condenser manifold 1421 is only permitted to spray fine cutting fluid (fine cutting fluid refers to brand new cutting fluid, fine polishing cleaning fluid, or finely filtered cutting fluid) when the polishing end of the second polishing mechanism 12 is directly opposite the support station. Specifically, the output end (i.e., nozzle) of the second condenser hose 1422 faces the part of the polishing end of the second polishing mechanism 12 that is outside the workpiece. That is, the polishing end of the second polishing mechanism 12 is circular and at least partially in contact with the workpiece. Through rotation, the polished part in contact with the workpiece will rotate back to the outside of the workpiece. At this time, the cutting fluid sprayed from the output end (i.e., nozzle) of the second condenser hose 1422 is sprayed onto the part of the polishing end of the second polishing mechanism 12 that has rotated back to the outside of the workpiece. The second polishing mechanism 12 can be used to rinse the part of the polishing end that rotates outside the workpiece, directly washing away the debris, instead of the cutting fluid adhering to the polishing end of the second polishing mechanism 12. Then the debris is thrown off by the rotation of the polishing end along with the cutting fluid, improving the cleaning ability of the debris on the polishing end of the second polishing mechanism 12. Furthermore, with the centrifugal force generated by the rotation of the polishing end, the cutting fluid is stretched into a film on the surface of the polishing end, and then enters the gap between the workpiece and the polishing end. In summary, through the inclined second condensing hose 1422, the fine cutting fluid can directly hit the meshing gap, be transported with the surface to form a film, and immediately remove micro-debris and heat, ensuring high cleanliness and high consistency in the fine polishing area. More specifically, the output end (i.e., the nozzle) of the second condenser hose 1422 has an upward incident posture, which makes it easy to get close to the polishing incident area. When the spraying stops, the residual liquid at the end can flow back to the second condenser main pipe 1421 by gravity, and reduce the risk of secondary back adhesion caused by liquid adhering to the nozzle and debris. The nozzle faces the working surface of the grinding head, so that the cutting fluid liquid first forms a stable film on the working surface of the grinding head. As the surface rotates, it is thinned and squeezed into the contact gap, which can penetrate the air curtain on the surface of the polishing end (rotating grinding head) of the second polishing mechanism 12, thus avoiding water-slip tool lifting and improving micro-contact consistency and heat exchange efficiency.

[0025] In this embodiment, as a preferred option, the rotary assembly 30 includes a mounting platform 31, a rotary motor 32, and a rotary shaft 33. The fixed end of the rotary motor 32 is fixedly connected to one end of the mounting platform 31, and the rotary shaft 33 is rotatably connected to the mounting platform 31, with one end extending out of the mounting platform 31 and connected to the output end of the rotary motor 32. The first polishing mechanism 11 and the second polishing mechanism 12 are both disposed on the rotary shaft 33, and the first polishing mechanism 11 and the second polishing mechanism 12 are arranged perpendicular to each other. The mounting table 31 can also be set on the conveying end of a conveying component that reciprocates along the second direction, so as to raise or lower the mounting table 31. When the mounting table 31 rises, it provides space for the rotary shaft 33 to rotate, and when it falls, it allows the first polishing mechanism 11 or the second polishing mechanism 12 to polish the workpiece. The fixed end of the rotary motor 32 is rigidly mounted on one end of the mounting platform 31, ensuring that the motor housing serves as a static reference. The rotary shaft 33 is rotatably mounted on the mounting platform 31 with bearing support, one end of which extends out of the mounting platform 31 and connects to the output end of the rotary motor 32. The rotary motor 32 directly drives the shaft to switch between the first and second positions, i.e., angular reversal. The mounting platform 31 provides the overall geometric reference and rigidity, while the rotary motor 32 provides controlled torque and angle. The rotary shaft 33 transmits the rotation angle to the first polishing mechanism 11 and the second polishing mechanism 12 mounted on the shaft, causing the first polishing mechanism 11 and the second polishing mechanism 12 to switch their angles toward the support station. When the rotary shaft 33 is positioned in the first position, the polishing end of the first polishing mechanism 11 is directly opposite the support station to perform rough polishing. After the rotary shaft 33 is moved to the second position at a preset angle (e.g., 90°), the second polishing mechanism 12 is directly opposite the support station to perform fine polishing. The right-angled structural relationship enables the two polishing units to achieve rapid and repeatable process switching under the same clamping and the same geometric reference, avoiding the re-tooling and positioning errors caused by frequent disassembly and assembly. Thus, the rotary assembly 30 undertakes both rough polishing and fine polishing, improving space utilization and rapid switching. It also ensures the same reference and the same posture after the repositioning through rigid reference and controlled rotation, thereby improving surface consistency and overall machine cycle efficiency. The rotary motor 32 is a known technology and serves as a drive motor. Specifically, it can be connected to the rotary shaft 33 via a reducer. The reducer is also a known technology and is only cited here.

[0026] In this embodiment, as a preferred solution, both the first polishing mechanism 11 and the second polishing mechanism 12 include dual-head motors. Adjacent dual-head motors are arranged perpendicularly to each other and distributed sequentially along the first direction. Both ends of the dual-head motors can be processing ends. Each processing end can carry different processing tools, such as grinding heads of different fineness, thereby enabling different processes to be performed on the same workstation, significantly improving processing efficiency and preventing errors caused by frequent clamping. Furthermore, both processing ends can use grinding heads of the same fineness. In this way, when one processing end is damaged, it can be quickly replaced to the other end for processing, thereby reducing downtime. The other end can be replaced during processing, further improving efficiency. By using dual-head motors, the rotary shaft 33 is provided with a third position and a fourth position in addition to the first and second positions. The first position corresponds to the third position, and the second position corresponds to the fourth position. That is, in the third position, one end of the dual-head motor of the first polishing mechanism 11 is opposite to the support workstation, and in the first position, it is the other end of the dual-head motor of the first polishing mechanism 11.

[0027] In this embodiment, as a preferred option, a control mechanism 40 is also included. The control mechanism 40 includes a first spring contact 41, a second spring contact 42, a third spring contact 43, and a fourth spring contact 44 arranged sequentially along the circumferential direction of the inner wall of the mounting platform 31. The first spring contact 41 and the second spring contact 42 are connected in series in the liquid supply circuit of the coarse condenser 141, and the third spring contact 43 and the fourth spring contact 44 are connected in series in the liquid supply circuit of the fine condenser 142. The control mechanism 40 also includes a conductive block 45, which is disposed at one end of the rotating shaft 33 and is used to connect with the first spring contact 41, the second spring contact 42, the third spring contact 43 and the fourth spring contact 44 as the rotating shaft 33 rotates. As the rotating shaft 33 rotates via the conductive block 45, when the conductive block 45 is connected to the first spring contact 41 and the second spring contact 42, that is, when the rotating shaft 33 is in the first position, the first spring contact 41 and the second spring contact 42 are electrically connected, thereby causing the liquid supply component (i.e., pump body) of the coarse condenser 141 to operate, so that the cutting fluid in the coarse cutting cylinder enters the first condenser main pipe 1411 and is sprayed out. When the rotating shaft 33 rotates to the second position, the third spring contact 43 and the fourth spring contact 44 are electrically connected, thereby causing the liquid supply component (i.e., pump body) of the fine condenser 142 to operate, so that the cutting fluid enters the second condenser main pipe 1421 and is sprayed out. The flow rate of the liquid sprayed from the first condenser hose 1412 is different from that of the liquid sprayed from the second condenser hose 1422. The requirements for the flow rate of cutting fluid are different between rough polishing and fine polishing.

[0028] In this embodiment, as a preferred option, a third conveying mechanism 50 is also included. The third conveying mechanism 50 includes a base 52 and a third conveying motor. The fixed end of the third conveying motor is fixedly connected to the base 52, and the output end of the third conveying motor is fixedly connected to a third lead screw. The outer surface of the third lead screw is threadedly connected to a slide table 51. The fixed ends of multiple first conveying mechanisms 21 are all fixedly connected to the slide table 51 and are arranged sequentially along the first direction. The forward rotation circuit of the third conveyor motor is connected to the first spring contact 41 and the second spring contact 42, and the reverse rotation circuit of the third conveyor motor is connected to the third spring contact 43 and the fourth spring contact 44. The third conveyor motor can be a three-phase motor, which is a known technology. The connection method of the forward and reverse rotation circuits is also a known technology. For reference purposes, in specific use, when the rotary shaft 33 is in the first position or the third position, the third conveyor motor is in forward rotation. At this time, the slide table 51 is connected by the thread between the third lead screws and slides along the first direction to one end of the base 52. When the rotary shaft 33 is in the second position or the fourth position, the third conveyor motor is in reverse rotation. At this time, the slide table 51 is connected by the thread between the third lead screws and slides along the first direction to the other end of the base 52. The bottom of the slide table 51 is mounted on the base 52 through the slotted sleeve for directional movement. More specifically, a feeding assembly for conveying along a third direction is also provided. The bottom of the base 52 is fixedly connected to the conveying end of the feeding assembly, which is used to send the base 52 to the bottom of the rotary shaft 33 and to assist the base 52 in driving the workpiece to feed along the third direction. The feeding assembly can be a linear motor. Linear motors are existing known technology and are only cited here without further details.

[0029] Furthermore, a damping bearing is provided inside the slide table 51. The slide table 51 is connected to the third lead screw through the damping bearing. When the slide table 51 is pressed against one end of the base 52, the damping bearing overcomes the friction between itself and the slide table 51. As the third lead screw rotates, the slide table 51 will not continue to move. At the same time, due to the continuous rotation of the third lead screw, the slide table 51 is continuously pressed against one end of the base 52 by the force transmitted by the damping bearing. At this time, the support position corresponds to the polishing end of the first polishing mechanism 11. Similarly, when the slide table 51 moves to the other end of the base 52, it can correspond to the polishing end of the second polishing mechanism 12.

[0030] In this embodiment, as a preferred option, the first conveying mechanism 21 includes a first conveying motor, the output end of which is fixedly connected to a first lead screw extending in a third direction, the outer surface of which is threadedly connected to a first push block, and the fixed end of the second conveying mechanism 22 is fixedly connected to the first push block. The first lead screw is driven to rotate by the first conveying motor, and the first push block threadedly connected to the first lead screw is subjected to force and moves in a third direction. The second conveying mechanism 22 located on the first push block moves with the first push block.

[0031] In this embodiment, as a preferred option, the second conveying mechanism 22 includes a second conveying motor. The output end of the second conveying motor is fixedly connected to a second lead screw extending in a second direction. A second push block is threadedly connected to the outer surface of the second lead screw. One end of the support mechanism 23 is fixedly connected to the second push block. The second lead screw is driven to rotate by the second conveying motor. The second push block, which is threadedly connected to the second lead screw, is subjected to force and moves in the second direction. The support mechanism 23 located on the second push block moves in the second direction along with the second push block.

[0032] Specifically, the first direction, second direction, and third direction are not directions. For example, if the first direction refers to the north-south direction, then moving south or north is moving along the first direction. Or it can be understood as the first direction referring to a straight line, and moving forward or backward along this line is moving along the first direction.

[0033] 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 multi-station dual-force control polishing machine tool, characterized in that: It includes a rotary assembly (30) extending along a first direction, a plurality of polishing assemblies (10) arranged sequentially along the first direction, and a plurality of support assemblies (20). The support assembly (20) includes a first conveying mechanism (21) extending in a third direction, a second conveying mechanism (22) extending in a second direction, and a support mechanism (23). The second conveying mechanism (22) is disposed at the conveying end of the first conveying mechanism (21), and the support mechanism (23) is disposed at the conveying end of the second conveying mechanism (22). The support mechanism (23) is provided with a support station for placing the workpiece and a dual force control monitoring mechanism. The dual force control monitoring mechanism is used to monitor the force changes during the processing and control the operation of the first conveying mechanism (21) and the second conveying mechanism (22). The polishing assembly (10) includes a first polishing mechanism (11) and a second polishing mechanism (12). The first polishing mechanism (11) and the second polishing mechanism (12) are sequentially arranged on the rotary assembly (30). The rotary end of the rotary assembly (30) is provided with a first position and a second position along the rotation direction. When the rotary end of the rotary assembly (30) is located at the first position, the polishing end of the first polishing mechanism (11) corresponds to the support station. When the rotary end of the rotary assembly (30) rotates to the second position along the rotation direction, the polishing end of the second polishing mechanism (12) corresponds to the support station.

2. The multi-station dual-force control polishing machine tool according to claim 1, characterized in that: The polishing assembly (10) also includes a cutting fluid mechanism (14), which includes a coarse condenser (141) and a fine condenser (142). The input end of the coarse condenser (141) is used to recover the cutting fluid, and the output end of the coarse condenser (141) is used to spray the recovered and filtered cutting fluid when the rotary assembly (30) is in the first position. The output end of the fine condenser (142) is used to spray the cutting fluid when the rotary assembly (30) is in the second position.

3. The multi-station dual-force control polishing machine tool according to claim 2, characterized in that: The coarse condenser (141) includes a first condenser manifold (1411) extending along a first direction. A plurality of first condenser hoses (1412) are sequentially arranged on the first condenser manifold (1411) along the first direction. The ends of the plurality of first condenser hoses (1412) away from the first condenser manifold (1411) are all facing the corresponding support position. The first condenser hoses (1412) are located above the support position and gradually tilted in the direction away from the support position. The input end of the first condenser manifold (1411) is connected to the coarse cutting fluid cylinder.

4. The multi-station dual-force control polishing machine tool according to claim 2, characterized in that: The fine condenser (142) includes a second condenser manifold (1421) extending along a first direction. A plurality of second condenser hoses (1422) are sequentially arranged on the second condenser manifold (1421) along the first direction. The ends of the plurality of second condenser hoses (1422) away from the second condenser manifold (1421) are all facing the corresponding support position. The second condenser hoses (1422) are located below the support position and gradually tilted in the direction away from the support position. The input end of the second condenser manifold (1421) is connected to the cutting fluid cylinder.

5. A multi-station dual-force control polishing machine tool according to claim 2, characterized in that: The rotary assembly (30) includes a mounting platform (31), a rotary motor (32), and a rotary shaft (33). The fixed end of the rotary motor (32) is fixedly connected to one end of the mounting platform (31). The rotary shaft (33) is rotatably connected to the mounting platform (31), and one end extends out of the mounting platform (31) and connects to the output end of the rotary motor (32). The first polishing mechanism (11) and the second polishing mechanism (12) are both set on the rotary shaft (33). The first polishing mechanism (11) and the second polishing mechanism (12) are set perpendicular to each other.

6. A multi-station dual-force control polishing machine tool according to claim 5, characterized in that: The first polishing mechanism (11) and the second polishing mechanism (12) both include a dual-head motor. The adjacent dual-head motors are arranged perpendicularly to each other and are distributed sequentially along the first direction.

7. A multi-station dual-force control polishing machine tool according to claim 5, characterized in that: It also includes a control mechanism (40), which includes a first spring contact (41), a second spring contact (42), a third spring contact (43) and a fourth spring contact (44) arranged sequentially along the circumferential direction of the inner wall of the mounting platform (31). The first spring contact (41) and the second spring contact (42) are connected in series in the liquid supply circuit of the coarse condenser (141), and the third spring contact (43) and the fourth spring contact (44) are connected in series in the liquid supply circuit of the fine condenser (142). The control mechanism (40) also includes a conductive block (45), which is disposed at one end of the rotating shaft (33) and is used to connect with the first spring contact (41), the second spring contact (42), the third spring contact (43) and the fourth spring contact (44) as the rotating shaft (33) rotates.

8. A multi-station dual-force control polishing machine tool according to claim 5, characterized in that: It also includes a third conveying mechanism (50), which includes a base (52) and a third conveying motor. The fixed end of the third conveying motor is fixedly connected to the base (52), and the output end of the third conveying motor is fixedly connected to a third lead screw. The outer surface of the third lead screw is threadedly connected to a slide (51), and the fixed end of the first conveying mechanism (21) is fixedly connected to the slide (51).

9. A multi-station dual-force control polishing machine tool according to claim 1, characterized in that: The first conveying mechanism (21) includes a first conveying motor, the output end of the first conveying motor is fixedly connected to a first lead screw extending in a third direction, the outer surface of the first lead screw is threadedly connected to a first push block, and the fixed end of the second conveying mechanism (22) is fixedly connected to the first push block.

10. A multi-station dual-force control polishing machine tool according to claim 1, characterized in that: The second conveying mechanism (22) includes a second conveying motor, the output end of which is fixedly connected to a second lead screw extending in a second direction, the outer surface of which is threadedly connected to a second push block, and one end of the support mechanism (23) is fixedly connected to the second push block.

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