Machine tool protection structure
By installing a front end plate, a rear end plate, a metal cover, a third protective cover, and a fourth protective cover on the machine tool, a closed, fully covered protection system is formed, which solves the problems of vibration interference and contaminant entry during the movement of the metal cover, thereby improving the operating accuracy of the machine tool and the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG YIYUAN YONGZHUO PRECISION TECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-26
AI Technical Summary
In the prior art, stainless steel telescopic guards will generate vibration or stress interference during movement, which will reduce the running accuracy and running speed of the machine tool; the gap between the side wall of the guard and the Y-axis allows some contaminants to enter the Y-axis system through the gap, resulting in reduced machine tool accuracy and shortened equipment life.
A machine tool protective structure is adopted, including a front end plate, a rear end plate, a metal cover, a third protective cover, and a fourth protective cover. The metal cover covers the guide rail seat, and the third and fourth protective covers seal the gap between the metal cover and the guide rail seat. The protective cover is connected to the machining table and can be folded or stretched by moving the machining table to form a closed, fully covered protection.
This solution resolves the vibration interference generated by the metal cover during movement, prevents contaminants from entering the Y-axis system, and improves the machine tool's operating accuracy and equipment lifespan.
Smart Images
Figure CN224407067U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a machine tool protective structure. Background Technology
[0002] Currently, in CNC machining equipment such as milling machines, machining centers, and engraving machines, the Y-axis system is one of the core motion axes of CNC machine tools, containing precision transmission components such as lead screws and guideways. Because the Y-axis system is located at the lowest position among the three axes, contaminants such as chips, cutting fluid, and condensate generated by other axes can easily splash onto it, causing corrosion or damage to the components within the Y-axis system. Therefore, it is essential to install a protective structure to protect the Y-axis system. The key areas of protection for this structure are the machine tool's internal hardened guideways, linear guideways, and ball screws or transmission racks.
[0003] Common protective structures include armored bellows covers. However, these covers are prone to trapping debris between the armor plates and the dustproof cloth. When the bellows cover is compressed, the dustproof cloth can break due to abnormal stress, causing the protection to fail. Therefore, existing technologies often use stainless steel telescopic covers to overcome the aforementioned defects of easily damaged covers. However, stainless steel telescopic covers often use rigid connections, which can generate vibrations or stress interference during their movement, thereby reducing the machine tool's operating accuracy and speed. Furthermore, the cover is located outside the Y-axis system, and there is a gap between the sidewall of the cover and the Y-axis system, allowing some contaminants to enter the Y-axis system through this gap. This can cause corrosion or damage to components within the Y-axis system, resulting in reduced machine tool accuracy and shortened equipment lifespan. Utility Model Content
[0004] The technical problem to be solved by this utility model is that in the prior art, the stainless steel telescopic guard will generate vibration or stress interference during the movement, which will reduce the running accuracy and running speed of the machine tool; there is a gap between the side wall of the guard and the Y-axis system, and some contaminants enter the Y-axis system through the gap, which will reduce the accuracy of the machine tool and shorten the service life of the equipment.
[0005] To solve the above-mentioned technical problems, this utility model provides a machine tool protection structure for protecting the Y-axis system. The Y-axis system includes a worktable, a guide rail seat on the worktable, a guide rail extending along the Y direction on the guide rail seat, and a machining table slidably mounted on the guide rail. The machine tool protection structure includes:
[0006] The front end plate is mounted on the worktable and located at one end of the movement path of the processing table;
[0007] The rear end plate is mounted on the worktable and located at the other end of the processing table's movement path;
[0008] A metal cover is installed along the Y direction at the bottom of the processing table. One end of the metal cover is installed on the front end plate, and the other end of the metal cover is installed on the rear end plate. The metal cover covers the guide rail seat.
[0009] The third protective cover consists of two third protective covers, which are respectively located between the two sides of the guide rail base and the corresponding metal cover. One end of the third protective cover is connected to the front end plate, and the other end of the third protective cover is connected to the processing table.
[0010] The fourth protective cover consists of two covers, which are respectively located between the two sides of the guide rail base and the corresponding metal cover. One end of the fourth protective cover is connected to the rear end plate, and the other end of the fourth protective cover is connected to the processing table.
[0011] The processing table moves to drive the third protective cover to fold and the fourth protective cover to extend, or the processing table moves to drive the third protective cover to extend and the fourth protective cover to fold.
[0012] Preferably, the machine tool protective structure further includes:
[0013] The first protective cover is located inside the metal cover. One end of the first protective cover is connected to the front end plate, and the other end of the first protective cover is connected to the processing table.
[0014] The second protective cover is located inside the metal cover. One end of the second protective cover is connected to the rear end plate, and the other end of the second protective cover is connected to the processing table.
[0015] The processing table moves to drive the first protective cover to fold and the second protective cover to extend, or the processing table moves to drive the first protective cover to extend and the second protective cover to fold.
[0016] Preferably, the guide rail base is provided with a third slide rail extending along the Y direction;
[0017] Both the first and second protective covers are herringbone-shaped accordion dust covers. The bottom of the herringbone-shaped accordion dust cover is equipped with a first slider that matches the third slide rail. The first slider is slidably connected to the third slide rail.
[0018] Preferably, a drainage channel is reserved between at least one side of the third protective cover and the corresponding side guide rail seat / metal cover, and a drainage channel is reserved between at least one side of the fourth protective cover and the corresponding side guide rail seat / metal cover.
[0019] Preferably, a first slide rail is provided on the inner wall of the metal cover on both sides of the guide rail seat, and a second slide rail corresponding to the first slide rail is provided on the guide rail seat. Both the first slide rail and the second slide rail extend along the Y direction.
[0020] One side of the third protective cover is slidably mounted on the first slide rail, and the other side of the third protective cover is slidably mounted on the second slide rail; one side of the fourth protective cover is slidably mounted on the first slide rail, and the other side of the fourth protective cover is slidably mounted on the second slide rail.
[0021] Preferably, the first slide rail includes a first mounting plate and a second mounting plate arranged vertically at intervals;
[0022] The second slide rail includes a vertically arranged support plate, and a third mounting plate and a fourth mounting plate are provided on the side of the support plate near the first slide rail. The third mounting plate and the fourth mounting plate are arranged vertically at intervals.
[0023] One side of the third protective cover is inserted into the gap between the first and second mounting plates, and the other side of the third protective cover is inserted into the gap between the third and fourth mounting plates; one side of the fourth protective cover is inserted into the gap between the first and second mounting plates, and the other side of the fourth protective cover is inserted into the gap between the third and fourth mounting plates.
[0024] Preferably, both the third and fourth protective covers are straight accordion dust covers, with the dirt-receiving surface of the straight accordion dust covers facing downwards.
[0025] Preferably, the metal cover includes a horizontal plate and two vertical plates, the two vertical plates are located on both sides of the guide rail seat, the horizontal plate is disposed on the top of the two vertical plates, and both vertical plates are connected to the horizontal plate.
[0026] Preferably, the horizontal plate includes a first horizontal plate and a second horizontal plate. Along the width direction of the guide rail seat, the first horizontal plate is inclined upward and the second horizontal plate is inclined downward. The upper ends of the first horizontal plate and the upper ends of the second horizontal plate are fixedly connected.
[0027] Compared with the prior art, the machine tool protection structure of this utility model has the following advantages:
[0028] This utility model discloses a machine tool protective structure in which one end of a metal cover is fixed to the front end plate and the other end is fixed to the rear end plate. The metal cover covers the outside of the guide rail seat on the worktable, thus isolating the guide rail seat from contaminants such as chips, cutting fluid, and condensate generated by other axes. This effectively solves the technical problem of contaminants splashing into the Y-axis system and damaging the facilities. Simultaneously, the metal cover is installed under the machining table, allowing relative sliding between the metal cover and the machining table. When the machining table moves, the metal cover does not fold or stretch with the movement of the machining table, solving the technical problem in the prior art where stainless steel telescopic covers generate vibration or stress interference during movement, thereby reducing the machine tool's operating accuracy and speed.
[0029] A third and fourth protective cover are provided between the side wall of the metal cover and the two sides of the guide rail seat. The third and fourth protective covers cover the gap between the metal cover and the guide rail seat, preventing contaminants from entering the Y-axis system through the gap between the metal cover and the guide rail seat. Moreover, the combination of the third and fourth protective covers and the metal cover forms a closed, full-coverage protection for the Y-axis system, further enhancing the protective effect of the protective structure on the Y-axis system.
[0030] This utility model embodiment has a simple structure and is easy to install. The metal cover does not stretch or fold with the processing table, which solves the technical problem in the prior art that the stainless steel telescopic cover will generate vibration or stress interference during the movement, resulting in a reduction in the running accuracy and running speed of the machine tool. At the same time, the setting of the metal cover, the third protective cover and the fourth protective cover forms a closed full-coverage protection for the Y-axis system, which solves the technical problem in the prior art that there is a gap between the side wall of the protective cover and the Y-axis system, and some contaminants enter the Y-axis system through the gap, resulting in a reduction in machine tool accuracy and a shortened equipment life. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the machine tool protection structure according to an embodiment of the present utility model;
[0032] Figure 2 This is a schematic diagram of the installation of the protective cover according to an embodiment of this utility model;
[0033] Figure 3 This is a schematic diagram of the Y-axis system according to an embodiment of the present invention;
[0034] Figure 4 This is a cross-sectional view (AA) of an embodiment of the present invention;
[0035] Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged diagram of point C in the diagram;
[0036] Figure 6 This is a BB cross-sectional view of an embodiment of the present utility model;
[0037] Figure 7 This is a structural diagram of the metal cover according to an embodiment of the present utility model;
[0038] Figure 8 This is an embodiment of the present utility model. Figure 7 Enlarged diagram of point D in the diagram;
[0039] Figure 9 This is a schematic diagram of a herringbone dust cover according to an embodiment of this utility model;
[0040] In the diagram, 1 is the Y-axis system; 11 is the worktable; 12 is the guide rail seat; 121 is the second slide rail; 1211 is the support plate; 1212 is the third mounting plate; 1213 is the fourth mounting plate; 122 is the third slide rail; 13 is the guide rail; 14 is the machining table; 141 is the through groove; 2 is the front end plate; 3 is the rear end plate; 4 is the metal cover; 41 is the horizontal plate; 411 is the first horizontal plate; 412 is the second horizontal plate; 42 is the vertical plate; 5 is the first protective cover; 6 is the second protective cover; 7 is the third protective cover; 8 is the fourth protective cover; 9 is the first slide rail; 91 is the first mounting plate; 92 is the second mounting plate; and 10 is the first slider. Detailed Implementation
[0041] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "bottom", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0043] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be called "second" information, and similarly, "second" information can also be called "first" information.
[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0045] like Figures 1 to 3As shown, a preferred embodiment of the present invention provides a machine tool protective structure for protecting the Y-axis system 1. The Y-axis system 1 includes a worktable 11 and a machining table 14 that moves along the Y direction of the worktable 11. Specifically, a guide rail seat 12 is provided on the worktable 11, and guide rails 13 are provided on the guide rail seat 12. There are two guide rails 13, which are arranged horizontally at intervals and extend along the Y direction. The transmission device of the machine tool is located between the two guide rails 13, and the machining table 14 is slidably mounted on the guide rails 13.
[0046] like Figures 1 to 6 As shown, the machine tool protective structure includes a front end plate 2, a rear end plate 3, a third protective cover 7, a fourth protective cover 8, and a metal cover 4. The front end plate 2 is mounted on the worktable 11 and located at one end of the movement path of the machining table 14. The rear end plate 3 is mounted on the worktable 11 and located at the other end of the movement path of the machining table 14. The metal cover 4 extends along the Y direction through the lower part of the machining table 14. One end of the metal cover 4 is mounted on the front end plate 2, and the other end is mounted on the rear end plate 3. The metal cover 4 covers the guide rail seat 12. There are two third protective covers 7, each located on the guide rail seat 12. Between the two sides of the guide rail seat 12 and the corresponding metal cover 4, one end of the third protective cover 7 is connected to the front end plate 2, and the other end of the third protective cover 7 is connected to the processing table 14; there are two fourth protective covers 8, which are respectively set between the two sides of the guide rail seat 12 and the corresponding metal cover 4. One end of the fourth protective cover 8 is connected to the rear end plate 3, and the other end of the fourth protective cover 8 is connected to the processing table 14; the processing table 14 moves to drive the third protective cover 7 to fold and the fourth protective cover 8 to stretch, or the processing table 14 moves to drive the third protective cover 7 to stretch and the fourth protective cover 8 to fold.
[0047] Specifically, such as Figure 1 , Figure 2 as well as Figure 7 As shown, a metal cover 4 is installed along the Y-axis at the lower part of the machining table 14. One end of the metal cover 4 is mounted on the front end plate 2, and the other end is mounted on the rear end plate 3. The metal cover 4 covers the guide rail seat 12 and is used to isolate contaminants such as chips, cutting fluid, and condensate generated by other axes, effectively solving the technical problem of contaminants splashing into the Y-axis system and damaging the facilities. In this embodiment of the utility model, a through groove 141 is provided on the machining table 14. One end of the metal cover 4 is fixed on the front end plate 2, and the other end of the metal cover 4 extends through the through groove 141 and is fixedly connected to the rear end plate 3. The metal cover 4 and the machining table 14 can slide relative to each other. When the machining table 14 moves, the metal cover 4 remains stationary and does not fold or stretch with the movement of the machining table 14. This solves the technical problem in the prior art that the stainless steel telescopic cover will generate vibration or stress interference during the movement, thereby reducing the running accuracy and running speed of the machine tool.
[0048] Furthermore, such as Figure 7As shown, in this embodiment of the invention, the metal cover 4 includes a horizontal plate 41 and two vertical plates 42. The two vertical plates 42 are located on both sides of the guide rail seat 12, and the horizontal plate 41 is disposed on the top of the two vertical plates 42. Both vertical plates 42 are connected to the horizontal plate 41. The horizontal plate 41 includes a first horizontal plate 411 and a second horizontal plate 412. Along the width direction of the guide rail seat 12, the first horizontal plate 411 is inclined upwards, and the second horizontal plate 412 is inclined downwards. The upper ends of the first horizontal plate 411 and the second horizontal plate 412 are fixedly connected. In this embodiment of the invention, the first horizontal plate 411 and the second horizontal plate 412 extend to both sides from their connection point and are inclined downwards, forming a herringbone-shaped sloping roof. When contaminants from other axes splash towards the Y-axis, the metal cover 4 isolates them. The blocked contaminants fall onto the horizontal plate 41 of the metal cover 4 and slide down to both sides along the first horizontal plate 411 and the second horizontal plate 412, preventing the accumulation of contaminants on the metal cover 4.
[0049] Furthermore, such as Figure 1 , Figure 2 and Figure 9 As shown, when the temperature and humidity inside the Y-axis system change, condensation is easily generated on the inner surface of the metal cover 4. When the condensation drips into the inside of the axis system, it will cause the lead screw and guide rail to rust, resulting in reduced machine tool accuracy and shortened equipment life. Therefore, the machine tool protective structure also includes a first protective cover 5 and a second protective cover 6. Both the first protective cover 5 and the second protective cover 6 are located inside the metal cover 4. One end of the first protective cover 5 is connected to the front end plate 2, and the other end is connected to the machining table 14. One end of the second protective cover 6 is connected to the rear end plate 3, and the other end is connected to the machining table 14. The machining table 14 moves to drive the first protective cover 5 to fold and the second protective cover 6 to stretch, or the machining table 14 moves to drive the first protective cover 5 to stretch and the second protective cover 6 to fold. The combination of the first protective cover 5, the second protective cover 6 and the machining table 14 forms a complete coverage of the Y-axis system. When condensation occurs on the inner surface of the metal cover 4, the condensation drips onto the first protective cover 5 and the second protective cover 6, preventing condensation from entering the interior of the Y-axis system and causing the lead screw and guide rail to rust, resulting in reduced machine tool accuracy and shortened equipment life.
[0050] Specifically, such as Figure 1 , Figure 2 and Figure 9 As shown in the embodiment of this utility model, both the first protective cover 5 and the second protective cover 6 are herringbone accordion dust covers. The two ends of the herringbone accordion dust cover are fixed by bolts. The width of the herringbone accordion dust cover covers the width of the guide rail seat 12 and extends above the third protective cover 7 and the fourth protective cover 8. The cross-section of the herringbone accordion dust cover is herringbone-shaped. The condensate dripping on the herringbone dust cover flows along the slope of the dust cover and falls onto the third protective cover 7 and the fourth protective cover 8. The dripping condensate flows out in real time, avoiding the accumulation of condensate that could cause damage or failure of the first protective cover 5 and the second protective cover 6.
[0051] Furthermore, such as Figure 9 As shown, to prevent the herringbone-shaped accordion dust cover from shifting out of plane when the processing table 14 moves, a third slide rail 122 extending along the Y direction is provided on the guide rail base 12. A first slider 10 matching the third slide rail 122 is provided at the bottom of the herringbone-shaped accordion dust cover, and the first slider 10 is slidably connected to the third slide rail 122. In this embodiment of the present invention, the third slide rail 122 is a C-shaped steel beam, and there are two third slide rails 122, which are horizontally spaced on the guide rail base 12. There are multiple first sliders 10, which are divided into two groups. The two groups of first sliders 10 correspond to two third slide rails 122. The multiple first sliders 10 in each group are arranged at intervals along the Y direction. The first sliders 10 are provided with slide grooves. The upper flange of the C-shaped steel beam is inserted into the slide groove. When the herringbone accordion dust cover is unfolded or folded along the Y direction, the herringbone accordion dust cover slides along the length direction of the C-shaped steel beam. The upper flange of the C-shaped steel beam restricts the out-of-plane displacement of the herringbone accordion dust cover, ensuring that the dust cover works normally.
[0052] Furthermore, such as Figure 2 , Figures 4 to 6 As shown, a third protective cover 7 and a fourth protective cover 8 are provided between the two sides of the guide rail seat 12 and the corresponding metal cover 4. One end of the third protective cover 7 is connected to the front end plate 2, and the other end is connected to the processing table 14. One end of the fourth protective cover 8 is connected to the rear end plate 3, and the other end is connected to the processing table 14. The processing table 14 moves to drive the third protective cover 7 to fold and the fourth protective cover 8 to extend, or the processing table 14 moves to drive the third protective cover 7 to extend and the fourth protective cover 8 to fold. In this embodiment of the present invention, both the third protective cover 7 and the fourth protective cover 8 are straight accordion dust covers, and the dirt-bearing surface of the straight accordion dust cover is arranged downwards. The third protective cover 7 and the fourth protective cover 8 cover the gap between the metal cover 4 and the guide rail seat 12, preventing contaminants from entering the Y-axis system from the gap between the metal cover 4 and the guide rail seat 12. Moreover, the combination of the third protective cover 7, the fourth protective cover 8 and the metal cover 4 forms a closed full-coverage protection for the Y-axis system, further enhancing the protective effect of the protective structure on the Y-axis system.
[0053] Furthermore, such as Figure 2 , Figures 4 to 6 , Figure 8As shown, the third protective cover 7 and the fourth protective cover 8 are stretched or folded as the processing table 14 moves. Since the out-of-plane stiffness of the third protective cover 7 and the fourth protective cover 8 is relatively weak, out-of-plane displacement is prone to occur during the stretching / folding process. In order to limit their out-of-plane displacement during the stretching / folding process, a first slide rail 9 is provided on the inner wall of the metal cover 4 on both sides of the guide rail seat 12. A second slide rail 121 corresponding to the first slide rail 9 is provided on the guide rail seat 12. Both the first slide rail 9 and the second slide rail 121 extend along the Y direction. One side of the third protective cover 7 is slidably installed on the first slide rail 9, and the other side of the third protective cover 7 is slidably installed on the second slide rail 121. One side of the fourth protective cover 8 is slidably installed on the first slide rail 9, and the other side of the fourth protective cover 8 is slidably installed on the second slide rail 121.
[0054] Furthermore, such as Figure 4 and Figure 5 As shown, the first slide rail 9 includes a first mounting plate 91 and a second mounting plate 92 arranged vertically at intervals. The second slide rail 121 includes a support plate 1211 arranged vertically. A third mounting plate 1212 and a fourth mounting plate 1213 are provided on the side of the support plate 1211 near the first slide rail 9. The third mounting plate 1212 and the fourth mounting plate 1213 are arranged vertically at intervals. One side of the third protective cover 7 is inserted into the interval between the first mounting plate 91 and the second mounting plate 92, and the other side of the third protective cover 7 is inserted into the interval between the third mounting plate 1212 and the fourth mounting plate 1213. One side of the fourth protective cover 8 is inserted into the interval between the first mounting plate 91 and the second mounting plate 92, and the other side of the fourth protective cover 8 is inserted into the interval between the third mounting plate 1212 and the fourth mounting plate 1213.
[0055] In this embodiment of the present invention, the first mounting plate 91 and the second mounting plate 92 are horizontally fixed on the inner wall of the vertical plate 42, and the second mounting plate 92 is located at the bottom of the vertical plate 42. The second slide rail 121 is made of channel steel beam, and the opening of the channel steel beam faces the corresponding first slide rail 9. An L-shaped steel beam for fixing the second slide rail 121 is provided on the guide rail seat 12. The flange plate of the L-shaped steel beam is located on the side of the web away from the third protective cover 7 / fourth protective cover 8, and the flange plate of the L-shaped steel beam is fixedly installed on the guide rail seat 12 by bolts. The web of the channel steel beam is welded and fixed to the web of the L-shaped steel beam. One side of the third protective cover 7 / fourth protective cover 8 is inserted into the gap between the first mounting plate 91 and the second mounting plate 92, and the other side of the third protective cover 7 / fourth protective cover 8 is inserted into the gap between the upper and lower flanges of the channel steel beam. When the processing table 14 moves, the third protective cover 7 and the fourth protective cover 8 slide within the interval between the first slide rail 9 and the second slide rail 121, effectively limiting the out-of-plane displacement of the third protective cover 7 and the fourth protective cover 8, and ensuring the effective protection of the third protective cover 7 and the fourth protective cover 8.
[0056] Furthermore, such as Figure 5As shown in this embodiment of the utility model, the straight-line accordion dust cover has a metal frame with a sliding groove that matches the upper flange of the channel steel beam and the first mounting plate 91. The upper flange of the channel steel beam and the first mounting plate 91 are inserted into the sliding groove, which further enhances the guiding effect of the first slide rail 9 and the second slide rail 121 on the straight-line accordion dust cover and also strengthens the restriction on the out-of-surface displacement of the straight-line accordion dust cover.
[0057] Furthermore, such as Figure 4 and Figure 5 As shown, the two sides of the herringbone-shaped accordion dust cover extend above the third protective cover 7 and the fourth protective cover 8, respectively. Condensate flows along the herringbone-shaped accordion dust cover and falls onto the straight-line accordion dust cover. To facilitate the drainage of condensate from the machine tool protective structure, a drainage channel is reserved between at least one side of the third protective cover 7 and the corresponding side guide rail seat 12 / metal cover 4, and a drainage channel is reserved between at least one side of the fourth protective cover 8 and the corresponding side guide rail seat 12 / metal cover 4. In this embodiment of the present invention, gaps are reserved between both sides of the straight-line accordion dust cover and the web plate of the channel steel beam and the vertical plate 42, respectively, and these gaps serve as drainage channels for condensate. When the single-piece accordion dust cover is stretched / compressed, a gap exists between the side of the single-piece accordion dust cover and the lower flange of the second mounting plate 92 / channel steel beam. Condensation on the single-piece accordion dust cover flows along its grooves into the drainage channel, and finally flows out through the gap between the side of the single-piece accordion dust cover and the lower flange of the second mounting plate 92 / channel steel beam. Simultaneously, the complex and tortuous drainage channel prevents external contaminants from entering the machine tool's protective structure when no condensation flows out, further enhancing the protection of the machine tool.
[0058] In summary, the present invention has a simple structure and is easy to install. The fixedly installed metal cover 4 does not stretch or fold with the processing table 14, which solves the technical problem in the prior art that the stainless steel telescopic cover will generate vibration or stress interference during the movement, resulting in a reduction in the running accuracy and running speed of the machine tool. At the same time, the setting of the metal cover 4, the first protective cover 5 and the second protective cover 6 can effectively isolate contaminants generated by other shaft systems and prevent condensation water on the inner wall of the metal cover 4 from falling into the Y-axis system. This solves the technical problem in the prior art that the inner surface of the stainless steel telescopic cover is prone to condensation water, which drips into the shaft system and causes the lead screw and guide rail to rust, resulting in a reduction in machine tool accuracy and a shortened equipment life.
[0059] The third protective cover 7 and the fourth protective cover 8 seal the gap between the metal cover 4 and the guide rail seat 12, preventing contaminants from entering the Y-axis system through the gap between the metal cover 4 and the guide rail seat 12. Furthermore, the combination of the third protective cover 7, the fourth protective cover 8, and the metal cover 4 forms a closed, fully covered protection for the Y-axis system, further enhancing the protective effect of the structure. The herringbone-shaped sloping roof of the metal cover 4 not only isolates contaminants from other shaft systems, but also allows the isolated contaminants to slide off to both sides along the first horizontal plate 411 and the second horizontal plate 412, preventing the accumulation of contaminants on the metal cover 4. When condensation occurs on the inner wall of the metal cover 4, the condensate can also slide off to both sides along the first horizontal plate 411 and the second horizontal plate 412, reducing the amount of condensate dripping vertically onto the first protective cover 5 and the second protective cover 6, thus lowering the risk of condensate entering the Y-axis system.
[0060] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A machine tool protective structure for protecting a Y-axis system (1), the Y-axis system (1) including a worktable (11), a guide rail seat (12) provided on the worktable (11), a guide rail (13) extending along the Y direction provided on the guide rail seat (12), and a machining table (14) slidably mounted on the guide rail (13), characterized in that, The machine tool protective structure includes: The front end plate (2) is mounted on the worktable (11) and located at one end of the moving path of the processing table (14); The rear end plate (3) is installed on the worktable (11) and is located at the other end of the movement path of the processing table (14); A metal cover (4) is installed along the Y direction through the lower part of the processing table (14). One end of the metal cover (4) is installed on the front end plate (2), and the other end of the metal cover (4) is installed on the rear end plate (3). The metal cover (4) covers the guide rail seat (12). The third protective cover (7) consists of two third protective covers (7), which are respectively disposed between the two sides of the guide rail seat (12) and the corresponding metal cover (4). One end of the third protective cover (7) is connected to the front end plate (2), and the other end of the third protective cover (7) is connected to the processing table (14). The fourth protective cover (8) consists of two fourth protective covers (8), which are respectively disposed between the two sides of the guide rail seat (12) and the corresponding metal cover (4). One end of the fourth protective cover (8) is connected to the rear end plate (3), and the other end of the fourth protective cover (8) is connected to the processing table (14). The processing table (14) moves to drive the third protective cover (7) to fold and the fourth protective cover (8) to stretch, or the processing table (14) moves to drive the third protective cover (7) to stretch and the fourth protective cover (8) to fold.
2. The machine tool protective structure according to claim 1, characterized in that, The machine tool protective structure also includes: The first protective cover (5) is disposed inside the metal cover (4). One end of the first protective cover (5) is connected to the front end plate (2), and the other end of the first protective cover (5) is connected to the processing table (14). The second protective cover (6) is disposed inside the metal cover (4). One end of the second protective cover (6) is connected to the rear end plate (3), and the other end of the second protective cover (6) is connected to the processing table (14). The processing table (14) moves to drive the first protective cover (5) to fold and the second protective cover (6) to stretch, or the processing table (14) moves to drive the first protective cover (5) to stretch and the second protective cover (6) to fold.
3. The machine tool protective structure according to claim 2, characterized in that, The guide rail base (12) is provided with a third slide rail (122) extending in the Y direction; Both the first protective cover (5) and the second protective cover (6) are herringbone accordion dust covers. The bottom of the herringbone accordion dust cover is provided with a first slider (10) that matches the third slide rail (122). The first slider (10) is slidably connected to the third slide rail (122).
4. The machine tool protective structure according to claim 1, characterized in that, The third protective cover (7) has a drainage channel reserved between at least one side and the corresponding side of the guide rail seat (12) / metal cover (4), and the fourth protective cover (8) has a drainage channel reserved between at least one side and the corresponding side of the guide rail seat (12) / metal cover (4).
5. The machine tool protective structure according to claim 1, characterized in that, A first slide rail (9) is provided on the inner wall of the metal cover (4) located on both sides of the guide rail seat (12), and a second slide rail (121) corresponding to the first slide rail (9) is provided on the guide rail seat (12). Both the first slide rail (9) and the second slide rail (121) extend along the Y direction. One side of the third protective cover (7) is slidably mounted on the first slide rail (9), and the other side of the third protective cover (7) is slidably mounted on the second slide rail (121); one side of the fourth protective cover (8) is slidably mounted on the first slide rail (9), and the other side of the fourth protective cover (8) is slidably mounted on the second slide rail (121).
6. The machine tool protective structure according to claim 5, characterized in that, The first slide rail (9) includes a first mounting plate (91) and a second mounting plate (92) arranged vertically at intervals; The second slide rail (121) includes a vertically arranged support plate (1211), and a third mounting plate (1212) and a fourth mounting plate (1213) are provided on the side of the support plate (1211) near the first slide rail (9), and the third mounting plate (1212) and the fourth mounting plate (1213) are arranged vertically at intervals. One side of the third protective cover (7) is inserted into the gap between the first mounting plate (91) and the second mounting plate (92), and the other side of the third protective cover (7) is inserted into the gap between the third mounting plate (1212) and the fourth mounting plate (1213); one side of the fourth protective cover (8) is inserted into the gap between the first mounting plate (91) and the second mounting plate (92), and the other side of the fourth protective cover (8) is inserted into the gap between the third mounting plate (1212) and the fourth mounting plate (1213).
7. The machine tool protective structure according to claim 1, characterized in that, Both the third protective cover (7) and the fourth protective cover (8) are single-line accordion dust covers, and the dirt-bearing surface of the single-line accordion dust cover is arranged downwards.
8. The machine tool protective structure according to claim 1, characterized in that, The metal cover (4) includes a horizontal plate (41) and two vertical plates (42). The two vertical plates (42) are located on both sides of the guide rail seat (12). The horizontal plate (41) is disposed on the top of the two vertical plates (42). Both vertical plates (42) are connected to the horizontal plate (41).
9. The machine tool protective structure according to claim 8, characterized in that, The horizontal plate (41) includes a first horizontal plate (411) and a second horizontal plate (412). Along the width direction of the guide rail seat (12), the first horizontal plate (411) is inclined upward and the second horizontal plate (412) is inclined downward. The upper end of the first horizontal plate (411) and the upper end of the second horizontal plate (412) are fixedly connected.