Base structure of double-station numerical control gantry machining center

Abstract

The utility model relates to a base structure of a double-station numerical control gantry machining center, which comprises a base, two groups of linear rail bosses for mounting linear rails are arranged at the top of the base, each group of linear rail bosses comprises a first linear rail table and a second linear rail table which are parallel to each other, and an inclined oil discharge groove is arranged between the first linear rail table and the second linear rail table. A plurality of oil guide grooves communicated with the oil discharge groove are formed in the sides, close to the oil discharge groove, of the first linear rail table and the second linear rail table; the top of the base is further provided with a plurality of chip grooves parallel to the oil discharging groove, the chip grooves extend to the other end of the base from one end of the base, and the chip grooves are located on the outer sides, close to the edge of the base, of the two sets of linear rail bosses and between the two sets of linear rail bosses. Mixing of metal chips, lubricating oil and cutting fluid in the using process of the double-station numerical control gantry machining center is reduced, and the problem that recycling of the lubricating oil and the cutting fluid is not facilitated is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to a base structure of a double-station CNC gantry machining center. Background Art

[0002] CNC gantry machining centers have been widely used in industries such as aerospace, mold manufacturing, and automobile manufacturing due to their high precision, large machining range, and high-rigidity structure. To improve the machining efficiency of CNC gantry machining centers, they have gradually developed from single-station machining to double-station machining. Therefore, the base structure of CNC gantry machining centers should also be designed and upgraded accordingly. At the same time, the amount of metal chips, cutting fluid, and lubricating oil generated during the machining process of double-station CNC gantry machining centers has increased significantly. If the base of the CNC gantry machining center is not designed with independent oil and chip discharge channels, the metal chips, lubricating oil, and cutting fluid will be discharged together, which is not conducive to the recycling of lubricating oil and cutting fluid, resulting in unnecessary waste and increased production costs. Summary of the Utility Model

[0003] Aiming at the above problems, the purpose of the utility model is to design a base structure of a double-station CNC gantry machining center, which can automatically discharge and collect metal chips, lubricating oil, and cutting fluid, reduce the mixing of metal chips, lubricating oil, and cutting fluid during the use of the double-station CNC gantry machining center, and solve the problem of being not conducive to the recycling of lubricating oil and cutting fluid.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] Design a base structure of a double-station CNC gantry machining center, including a base. There are two sets of rail bosses for installing linear rails on the top of the base. Each set of rail bosses includes a first rail platform and a second rail platform that are parallel to each other. An inclined oil discharge groove is provided between the first rail platform and the second rail platform. The oil discharge groove extends from one end of the base to the other end of the base. A number of oil guide grooves communicating with the oil discharge groove are opened on one side of the first rail platform and the second rail platform close to the oil discharge groove. A chip discharge groove parallel to the oil discharge groove is also provided on the top of the base. The chip discharge groove extends from one end of the base to the other end of the base. The chip discharge groove is located outside the two sets of rail bosses close to the edge of the base and between the two sets of rail bosses.

[0006] The base structure of the duplex CNC gantry machining center designed in this scheme has two sets of linear rail bosses, which can carry two sets of machining workbenches to meet the equipment's needs for machining two workpieces at the same time. In order to cope with the large amount of lubricating oil, cutting fluid, and metal chips used in the machining process, independent oil drain grooves and chip grooves are designed on the base. The lubricating oil flows out of the oil drain groove and is collected, and the cutting fluid and metal chips flow out of the chip groove and are collected, forming the effect of classified diversion and discharge of the lubricating oil and cutting fluid, reducing the mixing of the two, improving the convenience of subsequent recycling of the lubricating oil and cutting fluid, and reducing the difficulty of processing. In order to facilitate the diversion of the lubricating oil, the oil drain groove is set between the first linear rail platform and the second linear rail platform. At the same time, an oil guide groove connecting the oil drain groove is set on the first linear rail platform and the second linear rail platform, which can divert excess lubricating oil into the oil drain groove to prevent the lubricating oil from overflowing from various places of the first linear rail platform and the second linear rail platform. In order to quickly discharge the cutting fluid and metal chips, three groups of chip grooves can be set, two groups of chip grooves are located on the sides of the two groups of linear rail bosses close to the edge of the base, and the remaining group of chip grooves is located in the middle of the two groups of linear rail bosses. The chip groove located in the middle of the two groups of linear rail bosses has a larger opening, which can better facilitate the metal chips produced by the processing on the two groups of linear rail bosses to fall in and the cutting fluid to flow in. At the same time, the chip groove and the oil discharge groove are an integrated casting structure with the base, and the overall stability is stronger.

[0007] Furthermore, support blocks are symmetrically arranged on the side walls of the oil drain groove, and the support blocks are used to fix and install the driving device.

[0008] In order to effectively utilize the space of the base, the driving device of the sliding workbench installed on the linear rail boss, including a driving motor, a transmission shaft and a bearing seat, is installed in the oil drain groove, and symmetrical support blocks are arranged on the two side walls of the oil drain groove. There is a channel between the two support blocks for the lubricating oil to flow out. The cross-section of the support block is a right-angled triangle, and the top of the support block is a horizontal support platform. The driving motor is installed on the support platform. Through this design, the driving device can be sunk into the oil drain groove without affecting the use of the oil drain groove, thereby effectively utilizing the space of the oil drain groove and reducing the volume of the base.

[0009] Furthermore, it also includes a chip removal mechanism for discharging cutting fluid and chips, the chip removal mechanism includes a spiral rod and a drive motor driving the spiral rod to rotate, the drive motor is arranged at the end of the chip removal groove, and the spiral rod is located in the chip removal groove.

[0010] In order to enable the cutting fluid and metal chips to be discharged from the chip groove faster and avoid the accumulation of metal chips in the chip groove, a chip removal mechanism is provided in the chip groove instead of the general inclined surface method. The drive motor is installed at the top of the chip groove, and the spiral rod is arranged at the bottom of the chip groove. The drive motor drives the spiral rod to rotate to generate a pushing force, so that the cutting fluid and metal chips are automatically discharged from the chip groove faster.

[0011] Further, a chip discharge port is provided at one end of the chip discharge groove away from the drive motor, and the end of the screw rod extends out of the chip discharge port.

[0012] A circular chip discharge port is provided at the end of the chip discharge groove, and the end of the screw rod extends out of the chip discharge port, so that metal chips can be discharged from the chip discharge port. A metal chip collector can be provided below the chip discharge port. The metal chips falling into the collector are separated from the cutting fluid, and the operator can regularly clean and recycle the metal chips in the collector.

[0013] Further, the inner wall of the chip discharge groove has an arc-shaped bottom surface, and inclined surfaces are connected to both sides of the arc-shaped bottom surface. The screw rod is located on the arc-shaped bottom surface.

[0014] The inner wall of the chip discharge groove is composed of an arc-shaped bottom surface and inclined surfaces connected to the arc-shaped bottom surface. The arc-shaped bottom surface matches the screw rod, and the inclined surfaces are helpful for the inflow of metal chips and cutting fluid. The metal cutting accumulates on the arc-shaped bottom surface inside the chip discharge groove and gradually moves towards the chip discharge port under the action of the rotation of the screw rod.

[0015] Further, a plurality of support plates are provided on the lower side of the chip discharge groove.

[0016] The chip discharge groove and the base are integrally cast. To improve the strength of the base and the support of the chip discharge groove, a plurality of support plates are designed on the lower side of the chip discharge groove, rather than increasing the wall thickness of the chip discharge groove to improve the strength. The weight of the base is reduced while ensuring the overall strength.

[0017] Further, gantry mounting platforms are provided on both sides of the base. The end face of the gantry mounting platform is flush with the end face of the base where the chip discharge port is located, and triangular reinforcing members are provided between the gantry mounting platform and the base.

[0018] The gantry mounting platform and the base are integrally cast. The gantry mounting platform and the base form a T-shaped structure, and the overall stability is stronger. At the same time, triangular reinforcing members are provided between the gantry mounting platform and the base to further enhance the structural stability. Mounting holes are opened on the triangular reinforcing members, which can be used to provide mounting positions for the support feet.

[0019] Further, the base is a hollow structure, and a plurality of cross-shaped support reinforcing ribs are provided inside the base.

[0020] To reduce the weight of the base and ensure that the structural strength of the base meets the use requirements, the base is a hollow structure, and cross-shaped support reinforcing ribs are provided inside the hollow cavity. The support rigidity of the base is ensured through the support reinforcing ribs, so that the base can meet the use requirements.

[0021] Furthermore, a plurality of mounting holes are provided at the bottom of the base, and adjustable supporting feet are installed in the mounting holes.

[0022] In order to avoid the installation plane of the equipment being insufficiently level, which may cause the equipment to tilt or become unstable, a number of adjustable support feet are provided on the base. The support feet are passed through the installation holes, thereby enhancing the adjustment ability of the base to the ground, ensuring that the horizontal placement of the equipment meets the equipment requirements and improving the operating stability of the machine tool.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] The base structure of the duplex CNC gantry machining center designed in this scheme has two sets of linear rail bosses, which can carry two sets of machining workbenches to meet the equipment's needs for machining two workpieces at the same time. In order to cope with the large amount of lubricating oil, cutting fluid, and metal chips used in the machining process, independent oil drain grooves and chip grooves are designed on the base. The lubricating oil flows out of the oil drain groove and is collected, and the cutting fluid and metal chips flow out of the chip groove and are collected, forming the effect of classified diversion and discharge of the lubricating oil and cutting fluid, reducing the mixing of the two, improving the convenience of subsequent recycling of the lubricating oil and cutting fluid, and reducing the difficulty of processing. In order to facilitate the diversion of the lubricating oil, the oil drain groove is set between the first linear rail platform and the second linear rail platform. At the same time, an oil guide groove connecting the oil drain groove is set on the first linear rail platform and the second linear rail platform, which can divert excess lubricating oil into the oil drain groove to prevent the lubricating oil from overflowing from various places of the first linear rail platform and the second linear rail platform. In order to quickly discharge the cutting fluid and metal chips, three groups of chip grooves can be set, two groups of chip grooves are located on the sides of the two groups of linear rail bosses close to the edge of the base, and the remaining group of chip grooves is located in the middle of the two groups of linear rail bosses. The chip groove located in the middle of the two groups of linear rail bosses has a larger opening, which can better facilitate the metal chips produced by the processing on the two groups of linear rail bosses to fall in and the cutting fluid to flow in. At the same time, the chip groove and the oil discharge groove are an integrated casting structure with the base, and the overall stability is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a base structure diagram of a double-station CNC gantry machining center according to an embodiment of the utility model.

[0026] Figure 2 for Figure 1 Top view of the .

[0027] Figure 3 for Figure 1 A partial enlarged view of middle A.

[0028] Figure 4 This is a structural diagram from the bottom perspective of the base of a double-station CNC gantry machining center according to an embodiment of the utility model.

[0029] Illustration: 1. Base; 2. Linear guide boss; 3. Oil drain groove; 4. Chip removal groove; 5. Chip removal mechanism; 6. Gantry mounting table; 11. Support plate; 12. Triangular reinforcement; 13. Support reinforcing rib; 14. Mounting hole; 15. Support foot; 21. First linear guide table; 22. Second linear guide table; 23. Oil guiding groove; 31. Support block; 41. Chip outlet; 42. Arc bottom surface; 43. Inclined surface; 51. Screw rod; 52. Driving motor. Detailed implementation

[0030] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0031] As Figures 1 to 4 shown, a base structure of a double-station CNC gantry machining center provided in this embodiment includes a base 1. There are two groups of linear guide bosses 2 for installing linear guides on the top of the base 1. Each group of linear guide bosses 2 includes a first linear guide table 21 and a second linear guide table 22 that are parallel to each other. An inclined oil drain groove 3 is provided between the first linear guide table 21 and the second linear guide table 22. The oil drain groove 3 extends from one end of the base 1 to the other end of the base 1. A plurality of oil guiding grooves 23 communicating with the oil drain groove 3 are opened on one side of the first linear guide table 21 and the second linear guide table 22 close to the oil drain groove 3; a chip removal groove 4 parallel to the oil drain groove 3 is also provided on the top of the base 1. The chip removal groove 4 extends from one end of the base 1 to the other end of the base 1. The chip removal groove 4 is located outside the two groups of linear guide bosses 2 close to the edge of the base 1 and between the two groups of linear guide bosses 2.

[0032] The base structure of the double-station CNC gantry machining center provided in this embodiment has two sets of linear rail bosses 2, which can carry two sets of machining workbenches to meet the equipment's needs for machining two workpieces at the same time. In order to cope with the large amount of lubricating oil, cutting fluid, and metal chips used in the machining process, independent oil drain grooves 3 and chip drain grooves 4 are designed on the base 1. The lubricating oil flows out of the oil drain groove 3 and is collected, and the cutting fluid and metal chips flow out of the chip drain groove 4 and are collected, forming the effect of classified diversion and discharge of the lubricating oil and cutting fluid, reducing the mixing of the two, improving the convenience of subsequent recycling of the lubricating oil and cutting fluid, and reducing the difficulty of processing. In order to facilitate the diversion of the lubricating oil, the oil drain groove 3 is arranged between the first linear rail platform 21 and the second linear rail platform 22, and at the same time, an oil guide groove 23 connected to the oil drain groove 3 is arranged on the first linear rail platform 21 and the second linear rail platform 22, which can divert excess lubricating oil into the oil drain groove 3 to prevent the lubricating oil from overflowing from the first linear rail platform 21 and the second linear rail platform 22. In order to quickly discharge the cutting fluid and metal chips, three groups of chip grooves 4 can be provided. In other possible embodiments, four groups of chip grooves 4 can also be provided. Two groups of chip grooves 4 are respectively located on the sides of the two groups of linear rail bosses 2 close to the edge of the base 1, and the remaining group of chip grooves 4 is located in the middle of the two groups of linear rail bosses 2. The chip grooves 4 located in the middle of the two groups of linear rail bosses 2 have a larger opening, which can better facilitate the metal chips produced by the processing on the two groups of linear rail bosses 2 to fall in and the cutting fluid to flow in. At the same time, the chip grooves 4 and the oil discharge grooves 3 are an integrated casting structure with the base 1, and the overall stability is stronger.

[0033] like Figure 1 and Figure 2 As shown, the side walls of the oil drain groove 3 are symmetrically provided with support blocks 31, and the support blocks 31 are used to fix and install the driving device. In order to effectively utilize the space of the base 1, the driving device of the sliding workbench installed on the linear rail boss 2, including the driving motor, the transmission shaft and the bearing seat, etc. are installed in the oil drain groove 3, and symmetrical support blocks 31 are arranged on the two side walls of the oil drain groove 3. There is a channel for the lubricating oil to flow out between the two support blocks 31. In this embodiment, the cross-section of the support block 31 is a right triangle. In other possible embodiments, the cross-section of the support block 31 can be designed to be other shapes, as long as the top of the support block 31 is kept horizontal. The top of the support block 31 is a horizontal support platform, and the driving motor and the like are installed on the support platform. Through this design, the driving device is sunk into the oil drain groove 3 without affecting the use of the oil drain groove 3, which effectively utilizes the space of the oil drain groove 3 and reduces the volume of the base 1.

[0034] like Figure 1 and Figure 2As shown in the figure, it further includes a chip removal mechanism 5 for discharging cutting fluid and chips. The chip removal mechanism 5 includes a screw rod 51 and a driving motor 52 for driving the screw rod 51 to rotate. The driving motor 52 is arranged at the end of the chip discharge groove 4, and the screw rod 51 is located in the chip discharge groove 4. An outlet 41 is provided at one end of the chip discharge groove 4 away from the driving motor 52, and the end of the screw rod 51 extends out of the outlet 41. The inner wall of the chip discharge groove 4 has an arc-shaped bottom surface 42, and inclined surfaces 43 are connected to both sides of the arc-shaped bottom surface 42. The screw rod 51 is located on the arc-shaped bottom surface 42. In order to enable the cutting fluid and metal chips to be discharged from the chip discharge groove 4 faster and prevent metal chips from accumulating in the chip discharge groove 4, a chip removal mechanism 5 is arranged in the chip discharge groove 4 instead of the general method using an inclined surface. The driving motor 52 is installed at the top of the chip discharge groove 4, and the screw rod 51 is arranged at the bottom of the chip discharge groove 4. The driving motor 52 drives the screw rod 51 to rotate to generate a pushing force, so that the cutting fluid and metal chips can be automatically discharged from the chip discharge groove 4 faster. A circular outlet 41 is provided at the end of the chip discharge groove 4, and the end of the screw rod 51 extends out of the outlet 41, so that the metal chips can be discharged from the outlet 41. A metal chip collector can be arranged below the outlet 41. The metal chips falling into the collector are separated from the cutting fluid, and the operator can regularly clean and recycle the metal chips in the collector. The inner wall of the chip discharge groove 4 is composed of an arc-shaped bottom surface 42 and inclined surfaces 43 connected to the arc-shaped bottom surface 42. The arc-shaped bottom surface 42 matches the screw rod 51, and the inclined surfaces 43 are helpful for the inflow of metal chips and cutting fluid. The metal chips accumulate on the arc-shaped bottom surface 42 in the chip discharge groove 4 and gradually move towards the outlet 41 under the action of the rotation of the screw rod 51.

[0035] As Figure 3 shown, several support plates 11 are provided on the lower side of the chip discharge groove 4. The chip discharge groove 4 and the base 1 are integrally cast. To improve the strength of the base 1 and the supportability of the chip discharge groove 4, several support plates 11 are designed on the lower side of the chip discharge groove 4 instead of increasing the wall thickness of the chip discharge groove 4 to improve the strength, which reduces the weight of the base 1 while ensuring the overall strength.

[0036] As Figure 3 shown, gantry installation platforms 6 are provided on both sides of the base 1. The end face of the gantry installation platform 6 is flush with the end face of the base 1 where the outlet 41 is located. A triangular reinforcing member 12 is arranged between the gantry installation platform 6 and the base 1. The gantry installation platform 6 and the base 1 are integrally cast. The gantry installation platform 6 and the base 1 form a T-shaped structure, with stronger overall stability. At the same time, a triangular reinforcing member 12 is arranged between the gantry installation platform 6 and the base 1 to further enhance the structural stability; mounting holes 14 are opened on the triangular reinforcing member 12, which can be used to provide a mounting position for the support feet 15.

[0037] As Figure 3As shown, the base 1 has a hollow structure, and several cross-shaped support and reinforcement ribs 13 are provided inside the base 1. To reduce the weight of the base 1 while ensuring that the structural strength of the base 1 meets the usage requirements, the base 1 adopts a hollow structure, and cross-shaped support and reinforcement ribs 13 are arranged inside the hollow cavity. The support rigidity of the base 1 is ensured through the support and reinforcement ribs 13, enabling the base 1 to meet the usage requirements.

[0038] As Figure 3 shown, several mounting holes 14 are opened at the bottom of the base 1, and adjustable support feet 15 are installed in the mounting holes 14. In this embodiment, the number of support feet 15 is set to ten, and the number of support feet 15 can also be set according to the actual situation. To prevent the equipment from being inclined or unstable due to insufficient levelness of the installation plane of the equipment, multiple adjustable support feet 15 are provided on the base 1. The support feet 15 are inserted into the mounting holes 14, thereby enhancing the adjustment ability of the base 1 to the ground, ensuring that the equipment is horizontally placed to meet the equipment requirements, and improving the operating stability of the machine tool.

[0039] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0040] In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A base structure of a double-station CNC gantry machining center, comprising a base, characterized in that: Two groups of linear rail bosses for installing linear rails are provided on the top of the base, and each group of the linear rail bosses includes a first linear rail platform and a second linear rail platform parallel to each other, an inclined oil drainage groove is provided between the first linear rail platform and the second linear rail platform, and the oil drainage groove extends from one end of the base to the other end of the base, and a plurality of oil guide grooves connected to the oil drainage groove are provided on the side of the first linear rail platform and the second linear rail platform close to the oil drainage groove; the top of the base is also provided with a chip removal groove arranged parallel to the oil drainage groove, and the chip removal groove extends from one end of the base to the other end of the base, and the chip removal groove is located on the outer side of the two groups of linear rail bosses close to the edge of the base, and between the two groups of linear rail bosses.

2. The base structure of the double-station CNC gantry machining center according to claim 1 is characterized in that: The side walls of the oil drain groove are symmetrically provided with support blocks, and the support blocks are used for fixing and installing the driving device.

3. The base structure of the double-station CNC gantry machining center according to claim 1 is characterized in that: It also includes a chip removal mechanism for discharging cutting fluid and chips, the chip removal mechanism includes a spiral rod and a drive motor driving the spiral rod to rotate, the drive motor is arranged at the end of the chip removal groove, and the spiral rod is located in the chip removal groove.

4. The base structure of the double-station CNC gantry machining center according to claim 3 is characterized in that: A chip outlet is provided at one end of the chip discharge groove away from the driving motor, and the end of the spiral rod extends out of the chip outlet.

5. The base structure of the double-station CNC gantry machining center according to claim 3 is characterized in that: The inner wall of the chip removal groove has an arc-shaped bottom surface, both sides of the arc-shaped bottom surface are connected with inclined surfaces, and the spiral rod is located on the arc-shaped bottom surface.

6. The base structure of the double-station CNC gantry machining center according to claim 1 is characterized in that: A plurality of supporting plates are arranged on the lower side of the chip removal groove.

7. The base structure of the double-station CNC gantry machining center according to claim 4 is characterized in that: Gantry mounting platforms are provided on both sides of the base, the end faces of the gantry mounting platforms are flush with the end faces of the base where the chip outlet is located, and a triangular reinforcement piece is provided between the gantry mounting platforms and the base.

8. The base structure of the double-station CNC gantry machining center according to claim 1 is characterized in that: The base is a hollow structure, and a plurality of cross-shaped supporting reinforcing ribs are arranged inside the base.

9. The base structure of the double-station CNC gantry machining center according to claim 1, characterized in that: A plurality of mounting holes are provided at the bottom of the base, and adjustable supporting feet are installed in the mounting holes.

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