Bed motion stage drag reduction wire bundle protection device and grinding apparatus

Abstract

This utility model discloses a resistance-reducing wire harness protection device for a bed-type motion table and a grinding equipment, solving the technical problem that existing wire harness carriers have large volumes and exert additional resistance on the motion table. It includes a wire harness carrier that can move horizontally with the motion table and is connected to functional components mounted on the motion table. The motion table is mounted on the bed via a guiding and driving mechanism with linear guides and ball screw pairs. The functional components are a workpiece mounting assembly, an outer grinding wheel mounting assembly, or an inner grinding wheel mounting assembly. The wire harness carrier is a hollow tubular body made of flexible material. This hollow tubular body has a continuous corrugated outer contour along the axial direction and is vertically bent and suspended during use, thus adaptively bending and extending with the horizontal movement of the motion table, providing protection for the wire harness inside during the movement of the motion table. This significantly reduces the resistance to the motion table while ensuring effective protection of the internal wire harness.

Description

Technical Field

[0001] This utility model relates to grinding equipment (grinding machine), specifically to a bed motion table resistance reduction wiring harness protection device 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 moving tables working in tandem was designed. In the development of the aforementioned grinding machine, the applicant discovered that various functional components need to be installed on the moving tables, mainly including a workpiece mounting assembly (for mounting the workpiece), an outer grinding wheel mounting assembly (for mounting and driving the outer grinding wheel), or an inner grinding wheel mounting assembly (for mounting and driving the inner grinding wheel). These functional components typically need to connect various electrical harnesses, air pipes, and hydraulic lines. Traditional harness carriers use cable chains, but due to the complex internal structure and large size of the cable chains, they exert additional resistance on the moving tables, affecting motion accuracy and positioning accuracy. Especially when the motion table is operating at high precision and high speed, the impact of this additional resistance is more significant, forcing manufacturers to implement resistance compensation features, which increases the difficulty of developing grinding equipment. Furthermore, cable chains also suffer from drawbacks such as complex peripheral structures and inflexible wiring methods. Utility Model Content

[0003] The purpose of this invention is to provide a wire harness protection device and grinding equipment for reducing resistance on the bed motion table, thereby solving the technical problem that the existing wire harness has a large load volume and applies additional resistance to the motion table.

[0004] In the first aspect, a bed-mounted motion table resistance reduction wire harness protection device is provided, including a wire harness carrier that can move horizontally with the motion table and is connected to a functional component mounted on the motion table. The motion table is mounted on the bed via a guiding and driving mechanism with linear guides and ball screw pairs. The functional component is a workpiece mounting assembly, an outer grinding wheel mounting assembly, or an inner grinding wheel mounting assembly. The wire harness carrier is a hollow tubular body made of flexible material. The hollow tubular body has a continuous corrugated outer contour along the axial direction and is vertically bent and suspended in use, so that it can adaptively bend and extend with the horizontal movement of the motion table and provide protection for the wire harness inside when the motion table moves.

[0005] As an optimization and / or instantiation of the aforementioned bed motion table resistance reduction wiring harness protection device, furthermore: the hollow tubular body adopts a polyamide corrugated tube, a polytetrafluoroethylene corrugated tube, or a stainless steel corrugated tube.

[0006] As an optimization and / or instantiation of the aforementioned bed motion table resistance reduction wiring harness protection device, further: the hollow tubular body is composed of an outer corrugated tube and an inner corrugated tube fitted together, wherein the outer corrugated tube and the inner corrugated tube are respectively stainless steel corrugated tube and polyamide corrugated tube or polytetrafluoroethylene corrugated tube.

[0007] As an optimization and / or instantiation of the above-mentioned bed motion table resistance reduction wire harness protection device, it further includes a wiring device disposed on the top of the wire harness carrier, the wiring device including a wiring groove, the bottom of the wiring groove being provided with a hollow tubular upper mounting interface, and the upper port of the hollow tubular body being connected to the corresponding hollow tubular upper mounting interface.

[0008] As an optimization and / or instantiation of the aforementioned bed motion table resistance reduction wiring harness protection device, further: the wiring groove is elongated, and the position of the hollow tubular body mounting interface in the wiring groove can be selected along the length of the elongated shape.

[0009] As an optimization and / or instantiation of the aforementioned bed motion table resistance reduction wiring harness protection device, further: the top of the wiring trough is provided with a removable cover plate.

[0010] As an optimization and / or instantiation of the aforementioned bed motion table resistance reduction wiring harness protection device, further: the upper surface of the functional component is provided with a hollow tubular body lower mounting interface, and the lower port of the hollow tubular body is connected to the corresponding hollow tubular body lower mounting interface.

[0011] In a second aspect, a grinding machine is provided, comprising: a bed; a motion table mounted on the bed, the motion table being mounted on the bed via a guiding and driving mechanism having linear guides and ball screw pairs; functional components, including an assembly for mounting the workpiece on the motion table, an assembly for mounting grinding wheels for external machining, or an assembly for mounting grinding wheels for internal machining; and a bed motion table resistance reduction wiring harness protection device as described in the first aspect.

[0012] As an optimization and / or instantiation of the above-mentioned grinding equipment, further: three sets of motion tables are mounted on the bed, namely a first motion table, a second motion table, and a third motion table; the first motion table is configured to move along the horizontal X-axis and is equipped with a workpiece mounting assembly and a grinding wheel drier mounting assembly parallel to the workpiece mounting assembly in the horizontal X-axis direction; the second motion table is configured to move along the horizontal Y-axis and is equipped with an outer grinding wheel mounting assembly; the third motion table is arranged parallel to the second motion table along the horizontal X-axis direction, similarly configured to move along the horizontal Y-axis direction and is equipped with an inner grinding wheel mounting assembly; the travel distance of the first motion table in the horizontal X-axis direction... It can support the machining of the workpiece mounted on the workpiece mounting assembly by the outer grinding wheel mounted on the outer grinding wheel mounting assembly and the inner grinding wheel mounted on the inner grinding wheel mounting assembly, respectively. It can also support the grinding wheel regr mounted on the grinding wheel regr mounting assembly to regrind the outer grinding wheel mounted on the outer grinding wheel mounting assembly and the inner grinding wheel mounted on the inner grinding wheel mounting assembly, respectively. The workpiece mounting assembly, the outer grinding wheel mounting assembly and the inner grinding wheel mounting assembly are each connected to a set of bed movement table resistance reduction wiring harness protection device.

[0013] As an optimization and / or instantiation of the above-mentioned grinding equipment, further: the grinding wheel mounting assembly for inner machining simultaneously has an inner roughing grinding wheel mounting joint and an inner finishing grinding wheel mounting joint; the inner roughing grinding wheel mounting joint and the inner finishing grinding wheel mounting joint are arranged side by side along the horizontal X-axis; the travel of the first motion table in the horizontal X-axis direction can also support the grinding wheel draughter mounted on the grinding wheel draughter mounting assembly to draught the inner roughing grinding wheel mounted on the inner roughing grinding wheel mounting joint and the inner finishing grinding wheel mounted on the inner finishing grinding wheel mounting joint, respectively.

[0014] By employing a hollow tubular body made of flexible material as the wire harness carrier, which has a continuous corrugated outer contour along the axial direction and is vertically bent and suspended during use, this utility model's bed motion table resistance-reducing wire harness protection device effectively solves the problems of traditional wire harness protection devices being bulky and imposing additional resistance on the motion table. The corrugated outer contour of the hollow tubular body can adaptively bend and extend with the horizontal movement of the motion table, significantly reducing the resistance on the motion table while ensuring effective protection of the internal wire harness. In particular, the vertically bent suspension method simplifies the spatial layout requirements of the wire harness protection device and reduces interference with surrounding equipment. Applying this wire harness protection device in grinding equipment can improve the motion accuracy and positioning accuracy of the motion table, thereby improving the grinding quality.

[0015] In the aforementioned grinding equipment, by arranging three sets of moving tables (first, second, and third moving tables) on the bed in a coordinated layout, and by configuring bed moving table resistance-reducing wire harness protection devices for the workpiece mounting assembly, the outer grinding wheel mounting assembly, and the inner grinding wheel mounting assembly, this grinding equipment achieves high-precision and high-efficiency composite machining capabilities. In particular, the wire harness carrier adopts a corrugated hollow tubular body with a vertically curved suspension, which can adaptively bend and extend as each moving table moves according to its own trajectory (X-axis or Y-axis direction), significantly reducing resistance interference to the moving tables. This ensures the precise positioning and stable operation of the first moving table during the movement of the workpiece from the outer to the inner side and during the grinding wheel dressing operation.

[0016] 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

[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 1 A view of the moving table and the resistance-reducing wire harness protection device in the grinding equipment shown.

[0020] Figure 4 for Figure 1 The top view of the grinding equipment shown (representing the wiring device).

[0021] The following components are marked in the diagram: Bed 1; Moving table 2; First moving table 21; Second moving table 22; Third moving table 23; Functional component 3; Workpiece assembly 31; Grinding wheel dressing assembly 32; Grinding wheel assembly for outer machining 33; Grinding wheel 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; Lubrication station 5; Resistance-reducing wire harness protection device 6; Wire harness carrier 61; Wiring device 62; Wiring trough 63; Upper mounting interface of hollow tubular body 64; Cover plate 65; Worker operating area W. Detailed Implementation

[0022] 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:

[0023] 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.

[0024] 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.

[0025] 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.

[0026] This invention provides a multifunctional composite grinding device, mainly used for precision grinding of electric spindle parts. The specific embodiments of this invention will be described in detail below with reference to the accompanying drawings.

[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 1-2 As 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 aforementioned functional component 3 typically requires the connection of various electrical harnesses, air pipes, and hydraulic lines. Traditional harness carriers use cable chains, but due to the complex internal structure and large size of the cable chains, they exert additional resistance on the motion table, affecting motion and positioning accuracy. This additional resistance is particularly significant under high-precision, high-speed motion conditions of the motion table 2, forcing manufacturers to implement resistance compensation features, thus increasing the difficulty of grinding equipment development. Furthermore, cable chains also suffer from drawbacks such as complex peripheral structures and inflexible wiring methods.

[0045] Figure 3 for Figure 1 A view of the moving table and the resistance-reducing wire harness protection device in the grinding equipment shown. Figure 4 for Figure 1 The top view of the grinding equipment shown (representing the wiring device). Figures 3-4 As shown, this utility model proposes a bed motion table resistance reduction wiring harness protection device 6, which is used to protect various electrical wiring harnesses, air pipes and hydraulic lines connected to the functional components 3 installed on the motion table 2.

[0046] The drag-reducing wire harness protection device 6 includes a wire harness carrier 61 that can move horizontally with the motion table 2 and is connected to the functional component 3 installed on the motion table 2. The wire harness carrier 61 is a hollow tubular body made of flexible material. The hollow tubular body has a continuous corrugated outer contour along the axial direction and is suspended in a vertically bent shape during use, so that it can adaptively bend and stretch with the horizontal movement of the motion table 2 and provide protection for the wire harness inside when the motion table 2 moves.

[0047] This wire harness carrier 61 adopts a corrugated hollow tubular design, which effectively protects the internal wire harness while significantly reducing resistance and interference to the moving platform 2. The corrugated outer contour gives the hollow tubular body excellent elasticity and extensibility, enabling it to adapt to various horizontal movements of the moving platform 2. In particular, the vertically curved hanging installation method utilizes gravity to allow the wire harness carrier 61 to hang naturally. When the moving platform 2 moves, the wire harness carrier 61 can adapt to positional changes through its own bending and expansion, without generating significant pulling or pushing forces on the moving platform 2 as with traditional cable chains.

[0048] In this embodiment, the hollow tubular body is made of polyamide corrugated tubing, which has good flexibility, wear resistance, and chemical corrosion resistance. The internal space of the polyamide corrugated tubing is sufficient to accommodate various wiring harnesses required by the functional component 3, including power lines, signal lines, air pipes, and hydraulic lines, and can effectively prevent these wiring harnesses from being worn and contaminated by the external environment during the movement of the motion table 2.

[0049] In another embodiment, the hollow tubular body can be made of polytetrafluoroethylene (PTFE) corrugated tubing or stainless steel corrugated tubing. PTFE corrugated tubing has superior chemical corrosion resistance and high-temperature resistance, making it suitable for applications with more demanding cutting fluid environments; stainless steel corrugated tubing has higher mechanical strength and better wear resistance, making it suitable for applications requiring a longer service life.

[0050] In another embodiment, the hollow tubular body consists of an outer corrugated tube and an inner corrugated tube nested together, the outer corrugated tube being a stainless steel corrugated tube and the inner corrugated tube being a polyamide corrugated tube, respectively. This double-layer structure design combines the advantages of both materials: the outer stainless steel corrugated tube provides mechanical protection and wear resistance, while the inner polyamide corrugated tube provides flexibility and protection for the internal wire harness. Together, they extend the service life of the wire harness carrier 61 and further improve the protection capability for the internal wire harness.

[0051] The resistance-reducing wire harness protection device 6 also includes a wiring device 62 disposed on the top of the wire harness carrier 61. The wiring device 62 includes a wiring groove 63. The bottom of the wiring groove 63 is provided with a hollow tubular upper mounting interface 64. The upper port of the wire harness carrier 61 is connected to the corresponding hollow tubular upper mounting interface 64.

[0052] The design of this cabling unit 62 facilitates the organization and distribution of wire harnesses. The elongated cabling tray 63 can accommodate and guide multiple wire harnesses, ensuring their orderly distribution and guidance to their respective carriers 61. The position of the mounting interface 64 on the upper part of the hollow tubular body within the cabling tray 63 can be selected along the length of the elongated section. This adjustability allows the cabling system to adapt to different equipment configurations and wire harness layout requirements, improving the system's flexibility and versatility.

[0053] The top of the wiring trough 63 is provided with a removable cover plate 65 (see Figure 1 and Figure 4 This design facilitates the installation, maintenance, and replacement of the wiring harness. When it is necessary to operate on the wiring harness, simply remove the cover plate 65 to easily access the wiring harness inside the wiring tray 63; after the operation is completed, reinstall the cover plate 65, which protects the wiring harness and keeps the wiring system neat and aesthetically pleasing.

[0054] The upper surface of the functional component 3 is provided with a hollow tubular lower mounting interface, and the lower end of the wire harness carrier 61 is connected to the corresponding hollow tubular lower mounting interface. This design ensures a stable connection between the wire harness carrier 61 and the functional component 3, preventing the wire harness carrier 61 from falling off or shifting position during the movement of the motion table 2. At the same time, the design of the hollow tubular lower mounting interface also takes into account the bending radius limitation of the wire harness, avoiding excessive bending and damage to the wire harness when it enters the functional component 3.

[0055] In the grinding equipment of this embodiment, the workpiece mounting assembly 31, the outer grinding wheel mounting assembly 33, and the inner grinding wheel mounting assembly 34 are each connected to a set of resistance-reducing wire harness protection devices 6. This configuration ensures that each functional component 3 has an independent wire harness protection system, avoiding mutual interference between wire harnesses of different functional components 3 and improving the stability and reliability of the system. Especially for the grinding wheel mounting assembly that requires high-precision control, the independent wire harness protection device 6 ensures the stability of signal transmission and the accuracy of control.

[0056] The aforementioned resistance-reducing wire harness protection device 6 demonstrates certain technical advantages in practical applications. First, the corrugated hollow tubular design significantly reduces resistance interference to the moving table 2, greatly reducing motion resistance compared to traditional cable chains, which is particularly important for grinding equipment requiring high-precision positioning. Second, the vertically curved hanging installation simplifies the spatial layout requirements of the wire harness protection device, reduces interference with surrounding equipment, and makes the overall structure of the equipment more compact. Third, the hollow tubular body made of flexible material has good durability and protective performance, maintaining stable performance during long-term use and extending the service life of the wire harness. Finally, the design of the wiring harness 62 provides a flexible wire harness management solution, facilitating equipment installation, commissioning, and maintenance.

[0057] Compared to traditional cable chain-type wire harness protection devices, the aforementioned drag-reducing wire harness protection device 6 not only significantly reduces resistance interference to the motion table 2, improving motion accuracy and positioning accuracy, but also simplifies the structure, reduces space occupation, and lowers costs. Especially in applications where the motion table 2 requires frequent starts and stops or high-speed movement, traditional cable chains generate significant inertial forces and resistance changes, while the drag-reducing wire harness protection device 6 can smoothly adapt to these motion states, ensuring the stability and accuracy of the motion table 2.

[0058] 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 drag-reducing wire harness protection device for a machine tool bed moving table, comprising a wire harness carrier capable of horizontal movement with the moving table and connected to a functional component mounted on the moving table, the moving table being mounted on the machine tool bed through a set of guide and drive mechanisms with linear guide rails and ball screw pairs, the functional component being a machined part mounting assembly, an outer side machining grinding wheel mounting assembly, or an inner side machining grinding wheel mounting assembly, characterized in that: The wire harness carrier is a hollow tubular body made of flexible material. The hollow tubular body has a continuous corrugated outer contour along the axial direction and is suspended in a vertically bent shape during use, so that it can bend and stretch adaptively with the horizontal movement of the motion table and provide protection for the wire harness inside when the motion table moves. ​ 2. The bed motion stage drag reduction wire bundle protection apparatus of claim 1, wherein: The hollow tubular body is made of polyamide corrugated pipe, polytetrafluoroethylene corrugated pipe or stainless steel corrugated pipe.

3. The bed motion stage drag reduction wire bundle protection apparatus of claim 1, wherein: The hollow tubular body is composed of an outer corrugated tube and an inner corrugated tube fitted together, wherein the outer corrugated tube and the inner corrugated tube are respectively stainless steel corrugated tube and polyamide corrugated tube or polytetrafluoroethylene corrugated tube.

4. The bed motion table resistance reduction wiring harness protection device as described in claim 1, characterized in that: It also includes a wiring device disposed on the top of the wire harness carrier, the wiring device comprising a wiring groove, the bottom of the wiring groove having a hollow tubular upper mounting interface, the upper port of the hollow tubular body being connected to the corresponding hollow tubular upper mounting interface.

5. The bed motion stage drag reduction wire bundle protection apparatus of claim 4, wherein: The wiring channel is elongated, and the position of the hollow tubular mounting interface in the wiring channel can be selected along the length of the elongated shape.

6. The bed motion stage drag reduction wire bundle protection apparatus of claim 4, wherein: The top of the wiring trough is equipped with a removable cover.

7. The bed motion stage drag reduction wire bundle protection apparatus of claim 1, wherein: The upper surface of the functional component is provided with a hollow tubular body lower installation interface, and the lower port of the hollow tubular body is connected to the corresponding hollow tubular body lower installation interface.

8. Grinding equipment, including: Bed frame; A motion table is mounted on the bed, and the motion table is mounted on the bed via a guiding and driving mechanism with linear guide rails and ball screw pairs; Functional components, mounted on the motion table and being a workpiece mounting assembly, an outer grinding wheel mounting assembly, or an inner grinding wheel mounting assembly; Its features are: The motion table is equipped with a bed motion table resistance reduction wiring harness protection device as described in any one of claims 1-7.

9. The grinding apparatus of claim 8, wherein: The bed frame is equipped with three sets of motion tables, namely the first motion table, the second motion table and the third motion table; The first motion table is configured to move along the horizontal X-axis and is equipped with a workpiece mounting assembly and a grinding wheel dressing assembly that is parallel to the workpiece mounting assembly in the horizontal X-axis direction. The second motion table is configured to move along the horizontal Y-axis and is equipped with an outer grinding wheel mounting assembly; The third motion table is arranged side by side with the second motion table along the horizontal X-axis direction, and is also arranged to move along the horizontal Y-axis direction and is equipped with an inner grinding wheel mounting assembly. The first motion table's travel in the horizontal X-axis direction can support the workpiece mounted on the workpiece mounting assembly to be processed by the outer grinding wheel mounted on the outer grinding wheel mounting assembly and the inner grinding wheel mounted on the inner grinding wheel mounting assembly, respectively. It can also support the grinding wheel drier mounted on the grinding wheel drier mounting assembly to dredge the outer grinding wheel mounted on the outer grinding wheel mounting assembly and the inner grinding wheel mounted on the inner grinding wheel mounting assembly, respectively. The workpiece mounting assembly, the outer grinding wheel mounting assembly, and the inner grinding wheel mounting assembly are each connected to a bed movement table resistance reduction wiring harness protection device.

10. The grinding apparatus of claim 9, wherein: The grinding wheel mounting assembly for inner machining has both an inner roughing grinding wheel mounting joint and an inner finishing grinding wheel mounting joint. The inner roughing grinding wheel mounting joint and the inner finishing grinding wheel mounting joint are arranged side by side along the horizontal X-axis direction; The first motion table's travel in the horizontal X-axis direction can also support the grinding wheel drier mounted on the grinding wheel drier mounting assembly to grind the inner roughing grinding wheel mounted on the inner roughing grinding wheel mounting joint and the inner finishing grinding wheel mounted on the inner finishing grinding wheel mounting joint.

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