Lubricating oil recovery system for lathe bed motion platform and grinding equipment

Abstract

The utility model discloses a lubricating oil recovery system for a lathe bed movement platform and grinding equipment, and solves the technical problem that the temperature of lubricating oil is reduced by utilizing the cooling capacity of cutting fluid. Comprising a lubricating oil return pipe network arranged in a lathe bed, the lubricating oil return pipe network is used for collecting lubricating oil discharged from corresponding oil discharge ports of all moving tables on the lathe bed and returning the lubricating oil to a lubricating oil station, and the lubricating oil return pipe network is laid at the bottom of a cutting fluid recovery groove in the lathe bed. The lubricating oil return pipe network is dispersedly arranged in different areas of the cutting fluid recovery groove in a net structure to form a distributed pipe network system matched with the shape of the cutting fluid recovery groove, so that the cutting fluid flowing in the cutting fluid recovery groove can cool the lubricating oil in the lubricating oil return pipe network. The cooling capacity of the cutting fluid is fully utilized, and the temperature of the lubricating oil is reduced.

Description

Technical Field

[0001] This utility model relates to grinding equipment (grinding machine), specifically to a bed motion table lubricating oil recovery system and grinding equipment. Background Technology

[0002] Grinding is a key process in precision manufacturing. To meet the demands for machining accuracy, efficiency, and versatility in the manufacturing of electric spindles, the applicant has developed a grinding machine primarily for machining electric spindle parts. During the development of this grinding machine, a stone bed was used as the foundation to achieve good temperature stability and vibration reduction performance. Simultaneously, to achieve one-time machining of the inner and outer surfaces of the electric spindle parts, a layout scheme with multiple motion tables working in tandem was designed. However, during the development of the aforementioned grinding machine, the applicant discovered that the motion tables in grinding machines typically employ guiding and driving mechanisms with linear guides and ball screw pairs to achieve linear feed motion. Linear guides and ball screw pairs require good lubrication to ensure smooth movement and extend service life. Traditional grinding machine lubrication systems directly recover used lubricating oil to the lubrication station through the lubricating oil return network. If cooling of the lubricating oil is required, cooling equipment (such as air coolers) must be installed in the lubrication station. Furthermore, a large amount of cutting fluid is typically used during grinding, and this cutting fluid itself has cooling functions. However, cutting fluid recovery and lubricating oil recovery are independent of each other. Therefore, the cooling capacity of the cutting fluid (to reduce the temperature of the lubricating oil) has not been fully utilized. Utility Model Content

[0003] The purpose of this invention is to provide a bed-moving table lubricating oil recovery system and grinding equipment, solving the technical problem of using the cooling capacity of cutting fluid to reduce the temperature of lubricating oil.

[0004] In the first aspect, a bed-based motion table lubricating oil recovery system is provided, including a lubricating oil return pipeline network laid in the bed. The lubricating oil return pipeline network is used to collect the lubricating oil discharged from the corresponding oil drain ports of each motion table on the bed and return it to the lubricating oil station. The lubricating oil return pipeline network is laid at the bottom of the cutting fluid recovery groove in the bed. Furthermore, the lubricating oil return pipeline network is arranged in a mesh structure and dispersed in different areas of the cutting fluid recovery groove to form a distributed pipeline network system that matches the shape of the cutting fluid recovery groove, so that the cutting fluid flowing in the cutting fluid recovery groove can cool the lubricating oil in the lubricating oil return pipeline network.

[0005] As an optimization and / or instantiation of the above-mentioned bed-moving table lubricating oil recovery system, further: the bed includes a base and a moving table support seat protruding from the upper surface of the base and correspondingly arranged below each moving table. Each moving table support seat is equipped with a corresponding moving table through a guiding and driving mechanism with linear guide rails and ball screw pairs. Cutting fluid recovery grooves are formed around the periphery of each moving table support seat on the upper surface of the base.

[0006] As an optimization and / or instantiation of the above-mentioned bed motion table lubricating oil recovery system, further: each motion table support is fitted with a lubricating oil baffle on both side walls in the width direction, and each motion table support is fitted with a lubricating oil collection box on both side walls in the length direction, with an oil drain port at the bottom of each lubricating oil collection box; the lubricating oil return pipeline network includes lubricating oil return pipes extending along the length direction of these motion table supports.

[0007] As an optimization and / or instantiation of the above-mentioned bed motion table lubricating oil recovery system, further: the contact surface between the side wall of each motion table support in the width direction and the corresponding lubricating oil baffle is provided with a sealing structure.

[0008] As an optimization and / or instantiation of the aforementioned bed motion table lubricating oil recovery system, further: the sealing structure is composed of sealant.

[0009] As an optimization and / or instantiation of the above-mentioned bed motion table lubricating oil recovery system, further: the top edge of each lubricating oil baffle is folded towards the upper surface of the corresponding motion table support to form an anti-overflow lip.

[0010] As an optimization and / or instantiation of the above-mentioned bed motion table lubricating oil recovery system, further: each motion table support is a U-shaped support with a U-shaped cross-section; a set of ball screw pairs is arranged in the middle groove of the U-shaped support, and a pair of linear guides are arranged on the two protrusions of the U-shaped support with the corresponding ball screw pairs symmetrically arranged on the central axis.

[0011] As an optimization and / or instantiation of the above-mentioned bed motion table lubricating oil recovery system, further: the main body of the lubricating oil return pipeline network adopts a metal pipe with an anti-corrosion coating on the surface. The metal pipe is made of copper, aluminum or stainless steel, and the anti-corrosion coating is a zinc plating layer, an epoxy resin coating or a polytetrafluoroethylene coating.

[0012] As an optimization and / or instantiation of the above-mentioned bed motion table lubricating oil recovery system, further: the bed is a stone bed, and an oil drain hole is machined in the stone bed. The top of the oil drain hole is opened at the bottom of the cutting fluid recovery groove and is connected to the outlet of the inner oil drain manifold in the lubricating oil return pipeline network through a first connector. The bottom of the oil drain hole is opened on the side of the bed and is connected to the inlet of the outer oil drain manifold in the lubricating oil return pipeline network through a second connector. The outlet of the outer oil drain manifold is connected to the lubricating oil station.

[0013] In a second aspect, a grinding apparatus is provided, comprising: a bed; a motion table mounted on the bed; and a bed-motion table lubricating oil recovery system as described in the first aspect.

[0014] By employing a distributed pipeline system—where the lubricating oil return network is laid at the bottom of the cutting fluid recovery trench within the machine bed, and the network is dispersed in a mesh structure across different areas of the trench to match its shape—the cutting fluid flowing in the recovery trench can cool the lubricating oil in the return network. This fully utilizes the cooling capacity of the cutting fluid, reduces the temperature of the lubricating oil, slows down its degradation, and improves lubrication. Furthermore, by installing lubricating oil baffles and collection boxes on the side walls of the motion table support, effective lubricating oil collection is ensured, preventing premature mixing of the lubricating oil and cutting fluid.

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Additional aspects and advantages provided by the present invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to aid in understanding the present invention. The contents provided in the drawings and their related descriptions in this specification can be used to explain the present invention, but do not constitute an undue limitation on the present invention.

[0017] Figure 1 This is a three-dimensional view of the grinding equipment (with the top transparent) according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 The view of the grinding equipment shown after removing the outer casing.

[0019] Figure 3 for Figure 2 A cross-sectional view of the first moving table portion of the grinding equipment shown.

[0020] Figure 4 for Figure 2The installation position view of the lubricating oil baffle (colored) and lubricating oil receiving box (colored) in the first moving table part of the grinding equipment shown.

[0021] Figure 5 for Figure 2 A view of the cutting fluid recovery trench and lubricating oil return pipeline in the grinding equipment shown.

[0022] The following components are marked in the diagram: Bed 1; Base 11; Movement table support 12; Oil drain hole 13; Movement table 2; First movement table 21; Second movement table 22; Third movement table 23; Functional component 3; Workpiece mounting assembly 31; Grinding wheel dressing assembly 32; Grinding wheel mounting assembly for outer machining 33; Grinding wheel mounting assembly for inner machining 34; Grinding wheel mounting joint for inner rough machining 341; Grinding wheel mounting joint for inner finish machining 342; Outer housing 4; Arc-shaped sliding door 41; Lubricating oil station 5; Lubricating oil return pipeline 6; Cutting fluid recovery groove 7; Ball screw pair 81; Linear guide rail 82; Lubricating oil baffle 91; Lubricating oil collection box 92; Worker operating area W. Detailed Implementation

[0023] The present invention will now be clearly and completely described in conjunction with the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Before describing the present invention in conjunction with the accompanying drawings, it should be particularly noted that:

[0024] The technical solutions and features provided in the various sections, including the following description, can be combined with each other without conflict. Furthermore, where possible, these technical solutions, features, and related combinations can be given specific technical subject matter and protected by relevant patents.

[0025] The embodiments of the present invention described below are generally only some embodiments and not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of patent protection.

[0026] The terms "comprising," "including," "having," and any variations thereof in this specification, the corresponding claims, and related sections are intended to cover non-exclusive inclusion. Other related terms and units can be reasonably interpreted based on the relevant content provided in this specification.

[0027] Figure 1 This is a three-dimensional view of the grinding equipment (with the top transparent) according to an embodiment of the present invention. Figure 2 for Figure 1 The view of the grinding equipment shown is after the outer casing has been removed. Figures 1-2As shown, the grinding equipment is a multi-functional composite grinding equipment, mainly used for precision grinding of electric spindle parts.

[0028] The grinding equipment includes: a bed 1; a motion table 2 mounted on the bed 1, the motion table 2 being mounted on the bed 1 via a guide and drive mechanism with linear guides and ball screw pairs; and functional components 3 mounted on the motion table 2 (including the following workpiece mounting assembly 31, outer side grinding wheel mounting assembly 33, inner side grinding wheel mounting assembly 34, and grinding wheel dressing assembly 32).

[0029] In addition, the grinding equipment is equipped with an external lubrication station 5, which can supply lubricating oil to the guide and drive mechanisms of each moving table 2. Waste lubricating oil is collected through the lubricating oil return pipeline in the bed 1 and returned to the lubrication station 5 for filtration and reuse.

[0030] The machine bed 1 is equipped with three sets of motion tables 2, namely a first motion table 21, a second motion table 22, and a third motion table 23. The first motion table 21 is configured to move along the horizontal X-axis and is equipped with a workpiece mounting assembly 31 and a grinding wheel dressing assembly 32 parallel to the workpiece mounting assembly 31 in the horizontal X-axis direction. The second motion table 22 is configured to move along the horizontal Y-axis and is equipped with an outer grinding wheel mounting assembly 33. The third motion table 23 is arranged parallel to the second motion table 22 in the horizontal X-axis direction, and is also configured to move along the horizontal Y-axis and is equipped with an inner grinding wheel mounting assembly 34.

[0031] By employing a coordinated layout of three sets of motion tables (first motion table 21, second motion table 22, and third motion table 23) on the bed 1, this multi-functional composite grinding equipment achieves the technical goal of completing multiple grinding processes in a single setup. The design of setting the first motion table 21 to move along the horizontal X-axis, while setting the second and third motion tables 22 and 23 to move along the horizontal Y-axis, allows the grinding equipment to simultaneously support precise positioning in two directions, significantly improving processing flexibility. In particular, the structure of mounting the workpiece assembly 31 and the grinding wheel dressing assembly 32 side-by-side on the first motion table 21 fully utilizes the movement trajectory of a single motion table, improving space utilization efficiency and simplifying the equipment structure.

[0032] The first motion table 21's travel in the horizontal X-axis direction can support the workpiece mounted on the workpiece mounting assembly 31 to be processed by the outer grinding wheel mounted on the outer grinding wheel mounting assembly 33 and the inner grinding wheel mounted on the inner grinding wheel mounting assembly 34, respectively. It can also support the grinding wheel drier mounted on the grinding wheel drier mounting assembly 32 to dredge the outer grinding wheel mounted on the outer grinding wheel mounting assembly 33 and the inner grinding wheel mounted on the inner grinding wheel mounting assembly 34, respectively.

[0033] The design of the first motion table 21 in the horizontal X-axis direction cleverly solves the problem that traditional grinding equipment requires different devices or switching processes for workpiece processing and grinding wheel dredging. Through the reciprocating motion of a single motion table, the workpiece can be sent to different grinding wheels for processing, and the grinding wheel dredging device can be sent to each grinding wheel for dredging, significantly improving processing continuity and efficiency.

[0034] The inner grinding wheel mounting assembly 34 includes both an inner roughing grinding wheel mounting joint 341 and an inner finishing grinding wheel mounting joint 342. The inner roughing grinding wheel mounting joint 341 and the inner finishing grinding wheel mounting joint 342 are arranged side by side along the horizontal X-axis. The movement stroke of the first motion table 21 in the horizontal X-axis direction can also support the grinding wheel draughter mounted on the grinding wheel draughter mounting assembly 32 to draught the inner roughing grinding wheel mounted on the inner roughing grinding wheel mounting joint 341 and the inner finishing grinding wheel mounted on the inner finishing grinding wheel mounting joint 342, respectively.

[0035] This internal grinding wheel mounting assembly 34, which integrates both an internal roughing grinding wheel mounting joint 341 and an internal finishing grinding wheel mounting joint 342, further enhances the equipment's process integration. By integrating internal roughing and finishing functions into a single assembly, the number of steps involved in replacing, clamping, and adjusting the internal roughing and finishing grinding wheels during machining is reduced, thus lowering cumulative errors and improving machining accuracy. Simultaneously, the grinding wheel drinder mounting assembly 32's function of dredging both internal roughing and finishing grinding wheels ensures the machining performance and geometric accuracy of each wheel, extends wheel life, and guarantees consistent machining quality. This highly integrated functional layout significantly improves the equipment's machining capacity and efficiency.

[0036] The travel of the first motion table 21, the second motion table 22, and the third motion table 23 is all within the range defined by the edge of the bed 1. The bed is designed with a corner, and the inside corner formed by the corner is set as the worker's operating area W. When viewed from the worker's operating area W along the horizontal X-axis towards the multi-functional composite grinding equipment, the first motion table 21 is located on the left or right side of the worker's operating area W, and the second motion table 22 and the third motion table 23 are located on the front side of the worker's operating area W.

[0037] This structure, combining the corner design of the bed 1 with the layout of the motion tables, fully considers ergonomic principles and provides a more rational operating space. By designating the inner corner as the worker's operating area W and rationally arranging the motion tables around it, operators can complete the operation and monitoring of each functional unit 3 within the shortest possible travel distance. In particular, placing the first motion table 21 (responsible for workpiece clamping and grinding wheel dressing) on ​​the left or right side of the worker's operating area W, while placing the second motion table 22 and the third motion table 23, which perform grinding operations, on the front side of the worker's operating area W, ensures both operator convenience and safety during the machining process. Simultaneously, the design that the travel stroke of each motion table is within the edge range of the bed 1 ensures the compactness of the equipment and efficient space utilization.

[0038] The workpiece mounting assembly 31 is closer to the worker's operating area W than the grinding wheel dressing assembly 32. Furthermore, the inner grinding wheel mounting assembly 34 is closer to the worker's operating area W than the outer grinding wheel mounting assembly 33.

[0039] The layout design of this functional component 3 further optimizes operational convenience and processing efficiency. The workpiece mounting assembly 31 is positioned closer to the operator's work area W, facilitating workpiece loading, unloading, and inspection by the operator, reducing operator movement distance and work time, and improving work efficiency. Simultaneously, the grinding wheel mounting assembly 34 for internal machining is positioned closer to the operator's work area W than the grinding wheel mounting assembly 33 for external machining. Considering that internal machining typically requires more precise adjustments and more frequent observation, this layout allows the operator to more easily monitor the internal machining process and promptly detect and handle any machining abnormalities.

[0040] In addition, the aforementioned grinding equipment also includes an outer housing 4, which is mounted above the bed 1. The side walls of the outer housing 4 are arranged around the outer edge of the bed 1 to form corner-shaped side walls. The inner corner of the corner-shaped side wall is provided with an arc-shaped sliding door 41 that is recessed into the multi-functional composite grinding equipment. The arc-shaped sliding door 41 corresponds to the position of the worker's operating area W.

[0041] The design of this outer casing 4 balances ease of operation with safety protection. Installed above the machine bed 1, the outer casing 4 effectively prevents the splashing of cutting fluid and debris during machining, maintaining a clean working environment. The corner-shaped sidewalls match the corner shape of the machine bed 1, resulting in a harmonious and aesthetically pleasing overall design. In particular, the recessed, curved sliding door 41 at the inner corner corresponding to the worker's operating area W saves operating space while providing excellent visibility and access. The curved sliding door 41's opening and closing does not occupy space in the worker's operating area W, avoiding the spatial interference problems that may arise from traditional sliding or hinged doors. Simultaneously, the curved trajectory provides a larger opening range, increasing the usable area of ​​the worker's operating area W.

[0042] The bed frame 1 is made of stone, and the outer edge of the stone bed frame has spaced-apart mounting holes for the outer casing 4, which is bolted onto these mounting holes. The stone bed frame is made of marble, granite, or mineral castings. In this embodiment, the stone bed frame is made of marble.

[0043] The design of the stone bed 1 significantly improves the stability and precision of the equipment. The marble bed possesses excellent vibration absorption, thermal stability, and high rigidity, effectively suppressing vibrations generated during processing, reducing thermal deformation, and ensuring machining accuracy. The spaced mounting holes for the outer housing 4 on the outer edge of the stone bed 1 provide a reliable mounting method, and bolt connections ensure a secure connection between the outer housing 4 and the bed 1. Compared to traditional cast iron or steel bed structures, the marble bed offers better vibration damping and thermal stability, making it particularly suitable for the requirements of high-precision grinding. Furthermore, the marble material's corrosion resistance ensures long-term stable operation and precision maintenance of the equipment.

[0044] During the development of the aforementioned grinding equipment, the applicant discovered that the motion table 2 in the grinding equipment typically employs a guiding and driving mechanism with linear guides and ball screw pairs to achieve linear feed motion. The linear guides and ball screw pairs require good lubrication to ensure smooth movement and extend service life. Traditional grinding equipment lubrication systems directly recover used lubricating oil (waste lubricating oil) to the lubricating oil station 5 via the lubricating oil return network. If cooling of the lubricating oil is required, cooling equipment (such as an air cooler) must be installed in the lubricating oil station 5. Simultaneously, a large amount of cutting fluid is typically used during grinding, and this cutting fluid itself has cooling capabilities. However, cutting fluid recovery and lubricating oil recovery are independent of each other. Therefore, the cooling capacity of the cutting fluid (to reduce the temperature of the lubricating oil) is not fully utilized.

[0045] Figure 3 for Figure 2 A cross-sectional view of the first moving table portion of the grinding equipment shown. Figure 4 for Figure 2 The diagram shows the installation positions of the lubricating oil baffle and lubricating oil collection box in the first moving table section of the grinding equipment. Figure 5 for Figure 2 A view of the cutting fluid recovery trench and lubricating oil return pipeline network in the grinding equipment shown. Figures 3-5 As shown, to utilize the cooling capacity of cutting fluid to reduce the temperature of lubricating oil, this invention proposes a bed-type moving table lubricating oil recovery system, including a lubricating oil return pipeline network 6 laid in the bed 1. The lubricating oil return pipeline network 6 is used to collect the lubricating oil discharged from the corresponding oil drain ports of each moving table 2 on the bed 1 and return it to the lubricating oil station 5. The lubricating oil return pipeline network 6 is laid at the bottom of the cutting fluid recovery groove 7 in the bed 1, and the lubricating oil return pipeline network 6 is distributed in a mesh structure in different areas of the cutting fluid recovery groove 7, forming a distributed pipeline network system that matches the shape of the cutting fluid recovery groove 7, so that the cutting fluid flowing in the cutting fluid recovery groove can cool the lubricating oil in the lubricating oil return pipeline network.

[0046] By employing a distributed pipeline system—where the lubricating oil return network 6 is laid at the bottom of the cutting fluid recovery trench 7 within the machine bed 1, and the network is dispersed in a mesh structure across different areas of the trench 7 to match its shape—the cutting fluid flowing in the trench 7 can cool the lubricating oil in the return network 6. This fully utilizes the cooling capacity of the cutting fluid, reduces the temperature of the lubricating oil, slows down its degradation, and improves lubrication. The cutting fluid has excellent cooling capacity, quickly removing heat from the lubricating oil and improving its cooling efficiency. The dispersed mesh structure of the return network 6 increases the contact area with the cutting fluid, further enhancing the cooling effect.

[0047] The bed 1 includes a base 11 and motion table supports 12 protruding from the upper surface of the base 11 and correspondingly disposed below each motion table 2. Coolant recovery grooves 7 are formed around the periphery of each motion table support 12 on the upper surface of the base 11. Each motion table support 12 is a U-shaped support with a U-shaped cross-section; a ball screw pair 81 is arranged in the central groove of the U-shaped support, and a pair of linear guides 82 are arranged symmetrically about the central axis of the corresponding ball screw pair 81 on the two protrusions of the U-shaped support.

[0048] The design of the cutting fluid recovery grooves 7 around the motion table support 12 on the base 11 ensures effective collection and return of cutting fluid, preventing spillage and environmental pollution. The U-shaped motion table support 12 provides reasonable installation space and support structure for the ball screw pair 81 and linear guide 82, resulting in a compact and stable arrangement of the guiding and driving mechanisms. In particular, the symmetrical arrangement of the linear guide 82 around the central axis of the ball screw pair 81 ensures uniform force distribution on the motion table 2, reduces torque and off-center load during movement, and improves motion accuracy and stability.

[0049] Each motion table support 12 has a lubricating oil baffle 91 fitted to its two side walls in the width direction, and a lubricating oil collection box 92 installed on its two side walls in the length direction. Each lubricating oil collection box 92 has an oil drain port at its bottom. The lubricating oil return network 6 includes lubricating oil return pipes extending along the length of these motion table supports 12. The contact surface between the side wall of each motion table support 12 in the width direction and the corresponding lubricating oil baffle 91 is provided with a sealing structure made of sealant. The top edge of each lubricating oil baffle 91 is folded towards the upper surface of the corresponding motion table support 12 to form an anti-overflow lip.

[0050] The combined design of the lubricating oil baffle 91 and the lubricating oil collection box 92 forms a highly efficient lubricating oil collection system. The lubricating oil baffle 91 is installed on both side walls along the width direction of the motion table support, and its sealing structure, formed by sealant, effectively prevents lubricating oil leakage from the side walls along the width direction. In particular, the anti-overflow lip formed by the folded top edge of the lubricating oil baffle 91 further improves the lubricating oil collection efficiency and prevents splashing and overflow of lubricating oil during high-speed movement of the motion table 2. The lubricating oil collection box 92 is installed on both side walls along the length direction of the motion table support 12. It is responsible for collecting the lubricating oil discharged from the linear guide rail 82 and the ball screw assembly 81, and guiding the lubricating oil to the lubricating oil return network 6 through the drain port at the bottom of the lubricating oil collection box 92, forming a complete lubricating oil collection path, thereby allowing the lubricating oil return pipe to be arranged as long as possible.

[0051] The main body of the lubricating oil return pipeline 6 is made of copper tubing with an epoxy resin coating. The bed 1 is a stone bed with an oil drain hole 13 machined in it. The top of the oil drain hole 13 is located at the bottom of the cutting fluid recovery groove 7 and is connected to the outlet of the inner oil drain main in the lubricating oil return pipeline 6 via a first connector. The bottom of the oil drain hole 13 is located on the side of the bed 1 and is connected to the inlet of the outer oil drain main in the lubricating oil return pipeline 6 via a second connector. The outlet of the outer oil drain main is connected to the lubricating oil station 5.

[0052] This lubricating oil return pipeline uses copper pipes coated with epoxy resin, balancing thermal conductivity and corrosion resistance. The copper pipes have excellent thermal conductivity, quickly transferring heat from the lubricating oil, while the epoxy resin coating provides good corrosion protection, preventing the copper pipes from being corroded by the cutting fluid. The design of the oil drain holes in the stone cutting machine bed connects to the inner and outer oil drain manifolds of the machine bed via a first and second connector, forming a complete lubricating oil transport path. This allows the lubricating oil to flow smoothly from the drain ports of each lubricating oil collection box 92 to the lubricating oil station 5 by gravity, achieving lubricating oil recycling.

[0053] During the grinding process, the lubrication station 5 supplies lubricating oil to the linear guides and ball screw pairs of each moving table 2, ensuring the smooth operation of the moving parts. Used lubricating oil flows out from each drain port, is collected in the lubricating oil collection box 92, and then enters the lubricating oil return network 6. Simultaneously, the cutting fluid generated during grinding flows into the cutting fluid recovery groove 7, cooling the lubricating oil return network 6 laid at its bottom and lowering the lubricating oil temperature. The cooled lubricating oil finally returns to the lubrication station 5 through the main drain pipe on the outside of the machine bed, completing the recycling of the lubricating oil.

[0054] The aforementioned lubricating oil recovery system achieves effective recovery and cooling of lubricating oil, realizing comprehensive resource utilization, reducing energy consumption, and improving the overall efficiency of grinding equipment. Especially in high-precision grinding, the stability of lubricating oil temperature is crucial for maintaining motion accuracy. This system ensures the stability of lubricating oil temperature through the cooling effect of the cutting fluid, further improving the precision and quality of grinding operations.

[0055] The foregoing has described the relevant content of this utility model. Those skilled in the art will be able to implement this utility model based on these descriptions. All other embodiments obtained by those skilled in the art based on the foregoing content of this specification without inventive effort should fall within the scope of this utility model.

Claims

1. A bed-type moving table lubricating oil recovery system, comprising a lubricating oil return pipeline network laid in the bed, wherein the lubricating oil return pipeline network is used to collect the lubricating oil discharged from the corresponding oil drain ports of each moving table on the bed and return it to the lubricating oil station, characterized in that: The lubricating oil return pipeline is laid at the bottom of the cutting fluid recovery groove in the machine bed. Furthermore, the lubricating oil return pipeline is arranged in a mesh structure in different areas of the cutting fluid recovery groove to form a distributed pipeline system that matches the shape of the cutting fluid recovery groove. This allows the cutting fluid flowing in the cutting fluid recovery groove to cool the lubricating oil in the lubricating oil return pipeline.

2. The bed motion table lubricating oil recovery system as described in claim 1, characterized in that: The bed includes a base and a motion table support seat that protrudes from the upper surface of the base and is correspondingly arranged below each motion table. Each motion table support seat is equipped with a corresponding motion table through a guide and drive mechanism with linear guide rails and ball screw pairs. The cutting fluid recovery groove is formed around the periphery of each motion table support seat on the upper surface of the base.

3. The bed motion table lubricating oil recovery system as described in claim 2, characterized in that: Each motion table support has a lubricating oil baffle installed on both sides of its width direction, and a lubricating oil collection box installed on both sides of its length direction. Each lubricating oil collection box has an oil drain port at its bottom. The lubricating oil return pipeline network includes lubricating oil return pipes extending along the length direction of these motion table supports.

4. The bed motion table lubricating oil recovery system as described in claim 3, characterized in that: Each motion table support has a sealing structure at the contact surface between its side wall in the width direction and the corresponding lubricating oil baffle.

5. The bed motion table lubricating oil recovery system as described in claim 4, characterized in that: The sealing structure is made of sealant.

6. The bed motion table lubricating oil recovery system as described in claim 3, characterized in that: The top edge of each lubricating oil baffle is folded towards the upper surface of the corresponding motion table support to form an anti-overflow lip.

7. The bed motion table lubricating oil recovery system as described in claim 2, characterized in that: Each motion table support is a U-shaped support with a U-shaped cross-section; a set of ball screw pairs is arranged in the middle groove of the U-shaped support, and a pair of linear guides are arranged on the two protrusions of the U-shaped support with the corresponding ball screw pairs symmetrical about the central axis.

8. The bed motion table lubricating oil recovery system according to any one of claims 1-7, characterized in that: The main body of the lubricating oil return pipeline network is a metal pipe with an anti-corrosion coating on its surface. The metal pipe is made of copper, aluminum or stainless steel, and the anti-corrosion coating is a zinc plating layer, an epoxy resin coating or a polytetrafluoroethylene coating.

9. The bed motion table lubricating oil recovery system according to any one of claims 1-7, characterized in that: The machine bed is made of stone, and an oil drain hole is machined in the stone machine bed. The top of the oil drain hole is located at the bottom of the cutting fluid recovery groove and is connected to the outlet of the inner oil drain manifold in the lubricating oil return pipeline network through a first connector. The bottom of the oil drain hole is located on the side of the machine bed and is connected to the inlet of the outer oil drain manifold in the lubricating oil return pipeline network through a second connector. The outlet of the outer oil drain manifold is connected to the lubricating oil station.

10. Grinding equipment, including: Bed frame; A motion table installed on the bed frame; Its features are: It also includes the bed motion table lubricating oil recovery system as described in any one of claims 1-9.

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