Base structure of double-machining-table numerical control machining center

Abstract

The base structure of the double-machining-table numerical control machining center comprises a base, the top of the base is provided with two linear rail bosses which are used for installing linear rails and are parallel to each other in the first direction, and a first flow guide groove is formed between the two linear rail bosses. Chip grooves are formed in the outer sides, away from the first flow guide groove, of the two linear rail bosses, the two chip grooves penetrate through the base in the first direction, and second flow guide grooves communicating with the two chip grooves in the second direction are formed in the two ends of the first flow guide groove correspondingly; and the height of the bottom surface of the second diversion trench is lower than that of the bottom surface of the first diversion trench. According to the base structure of the numerical control machining center of the machining table, metal cuttings and cutting fluid can be automatically, timely and effectively discharged and collected, accumulation of the metal cuttings and the cutting fluid in equipment is reduced, and the stability and the machining efficiency of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to a base structure of a double-processing-table numerical control processing center. Background Art

[0002] CNC machining centers are highly automated machine tools that use computer digital control to perform various precision machining operations, such as milling, drilling, and tapping. They are widely used in machinery manufacturing, mold manufacturing, aerospace, automotive industry, medical equipment, and other fields. To improve the processing efficiency of CNC machining centers, CNC machining centers have gradually evolved from single-table processing to dual-table processing, and therefore the base structure of CNC machining centers should also be designed and upgraded accordingly. At the same time, dual-table CNC machining centers generate significantly more metal chips and cutting fluid during the machining process. If the metal chips and cutting fluid cannot be discharged from the equipment in a stable, timely and effective manner, the stability of the equipment may be affected. Moreover, the equipment needs to be shut down for manual cleaning of metal chips and cutting fluid, which reduces the processing efficiency of the equipment. Utility Model Content

[0003] In response to the above-mentioned problems, the purpose of this utility model is to design a base structure for a dual-table CNC machining center that can automatically, promptly and effectively discharge and collect metal chips and cutting fluid, reduce the accumulation of metal chips and cutting fluid in the equipment, and improve the stability and processing efficiency of the equipment.

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

[0005] A base structure of a double-table CNC machining center is designed, including a base, wherein two linear rail bosses parallel to each other for installing linear rails are provided on the top of the base along a first direction, a first guide groove is provided between the two linear rail bosses, and chip grooves are provided on the outsides of the two linear rail bosses away from the first guide groove. The two chip grooves pass through the base along the first direction, and second guide grooves are provided at both ends of the first guide groove respectively, which connect the two chip grooves along the second direction, and the height of the bottom surface of the second guide groove is lower than the height of the bottom surface of the first guide groove.

[0006] The base structure of the dual-table CNC machining center designed in this scheme has two parallel linear rail bosses for installing linear rails, which can support two machining tables. The sliding drive device required for the machining tables can be set in the first guide groove to save space in the base. The metal chips and cutting fluid generated during workpiece machining fall directly into the chip trough outside the two linear rail bosses, while the remaining part falls under the machining table. In order to enable the metal chips and cutting fluid that fall under the machining table to flow quickly into the chip trough, a first guide groove and a second guide groove connecting the first guide groove and the chip trough are set between the two linear rail bosses. The height difference between the first guide groove and the second guide groove allows the metal chips and cutting fluid to flow quickly into the chip trough and then be discharged from the chip trough to avoid accumulation on the base. The above design can automatically, timely and effectively discharge metal chips and cutting fluid, reduce the accumulation of metal chips and cutting fluid in the equipment, and improve the stability and machining efficiency of the equipment.

[0007] Furthermore, the bottom surface of the first guide groove includes a first inclined surface extending from the middle to both ends of the first guide groove along a first direction, and a horizontal bottom surface connected to the first inclined surface.

[0008] In order to enable the cutting fluid in the first guide groove to flow quickly into the chip discharge groove, the bottom surface of the first guide groove is provided with an inclined slope, namely the first slope. The first slope extends from the middle of the first guide groove to both ends, that is, the bottom surface of the first guide groove is high in the middle and low at both ends, so that the cutting fluid and metal chips can flow out from both ends. The design of the conventional inclined slope that allows the cutting fluid and metal chips to flow out from one side of the guide groove is changed, and the efficiency of the outflow of cutting fluid and metal chips is improved. The first slope is connected to a horizontal bottom surface, and the horizontal bottom surface is connected to the second guide groove. The design of the horizontal bottom surface is to slow down the flow rate of the cutting fluid to prevent the cutting fluid from flowing too fast and causing part of the cutting fluid to fail to flow into the second guide groove, and rush out of the base to cause other parts of the equipment to be soaked in cutting fluid.

[0009] Furthermore, two groups of support units are arranged opposite to each other in the first guide groove, and the two groups of support units are used to install a driving device that drives the processing table to move along the linear rail. Each group of support units includes a first support block located on the first inclined surface, and a second support block located on the horizontal bottom surface. The first support block and the second support block are both provided with a hollow channel.

[0010] The second support block arranged on the horizontal bottom surface is used to install the drive motor, the first support block arranged on the first inclined surface is used to install the bearing seat, and the transmission shaft is arranged between the first support block and the second support block; the first support block and the second support block are both provided with hollow channels to avoid affecting the flow of cutting fluid and metal chips.

[0011] Furthermore, the bottom surface of the second guide groove includes a second inclined surface extending from the middle of the second guide groove toward the chip removal groove along the second direction.

[0012] The height of the bottom surface of the second guide groove is lower than that of the bottom surface of the first guide groove, forming a height difference between the two, so that the cutting fluid and metal chips have a higher flow rate when flowing into the second guide groove. The bottom surface of the second guide groove also adopts the form of a middle high and two end lows, forming a second inclined surface connecting the two chip grooves, so that the cutting fluid and metal chips can flow into the chip groove quickly.

[0013] Furthermore, a circular chip outlet is provided at one end of the chip removal groove, the bottom surface of the chip removal groove is an arc-shaped bottom surface, and the circular chip outlet coincides with the axis of the arc-shaped bottom surface.

[0014] The bottom surface of the chip groove is a semicircular arc bottom surface, which makes it easy for metal chips to gather at the bottom of the chip groove. A spiral conveying mechanism matching the arc bottom surface is set in the chip groove, which can quickly convey the metal chips gathered at the bottom of the chip groove to the chip outlet.

[0015] 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 that drives the spiral rod to rotate, the drive motor is arranged at the end of the chip removal groove away from the chip discharge port, the spiral rod is located in the chip removal groove, and the end of the spiral rod extends out of the chip discharge port.

[0016] In order to allow cutting fluid and metal chips to be discharged from the chip flute more quickly and to avoid metal chips accumulating in the chip flute, a chip removal mechanism is used instead of the usual inclined surface. The drive motor is installed at the end of the chip flute, and the spiral rod is set on the arc bottom surface of the chip flute. The drive motor drives the spiral rod to rotate to generate a pushing force, thereby automatically and faster discharging the cutting fluid and metal chips from the chip flute. The end of the spiral rod extends out of the chip outlet, so that the metal chips can be discharged from the chip outlet. A metal chip collector can be set below the chip outlet. The metal chips that fall into the collector are separated from the cutting fluid. The operator can regularly clean and recycle the metal chips in the collector.

[0017] Furthermore, a plurality of support plates are provided on the lower side of the chip removal groove.

[0018] The chip groove and the base are an integrated casting design. In order to improve the strength of the base and the support of the chip groove, several support plates are designed on the lower side of the chip groove instead of increasing the strength by thickening the wall of the chip groove. This reduces the weight of the base while ensuring the overall strength.

[0019] Furthermore, a column mounting platform is provided on one side of the base, and a connecting reinforcement is provided between the column mounting platform and the base.

[0020] The column mounting platform and the base adopt an integrated casting design. The column mounting platform is located in the middle position of the base and the adjacent side of the chip groove, forming a T-shaped structure with the base, which has stronger overall stability. At the same time, a connecting reinforcement is set between the column mounting platform and the base to further enhance the stability of the structure.

[0021] Furthermore, the base is a hollow structure, and a plurality of cross-shaped supporting reinforcement ribs are provided inside the base.

[0022] In order to reduce the weight of the base and ensure that the structural strength of the base meets the use requirements, the base adopts a hollow structure, and cross-shaped support reinforcement ribs are set inside the hollow cavity. The support reinforcement ribs ensure the support rigidity of the base, so that the base can meet the use requirements.

[0023] Furthermore, a plurality of mounting holes are provided at the bottom of the base, and adjustable supporting feet are installed in the mounting holes.

[0024] In order to avoid the equipment's installation plane 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 mounting holes, thereby enhancing the base's ability to adjust to the ground, ensuring that the equipment is placed horizontally to meet the equipment requirements and improving the machine's operating stability.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The base structure of the dual-table CNC machining center designed in this scheme has two parallel linear rail bosses for installing linear rails, which can support two machining tables. The sliding drive device required for the machining tables can be set in the first guide groove to save space in the base. The metal chips and cutting fluid generated during workpiece machining fall directly into the chip trough outside the two linear rail bosses, while the remaining part falls under the machining table. In order to enable the metal chips and cutting fluid that fall under the machining table to flow quickly into the chip trough, a first guide groove and a second guide groove connecting the first guide groove and the chip trough are set between the two linear rail bosses. The height difference between the first guide groove and the second guide groove allows the metal chips and cutting fluid to flow quickly into the chip trough and then be discharged from the chip trough to avoid accumulation on the base. The above design can automatically, timely and effectively discharge metal chips and cutting fluid, reduce the accumulation of metal chips and cutting fluid in the equipment, and improve the stability and machining efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of the base of a CNC machining center with two processing tables according to an embodiment of the present invention.

[0028] Figure 2 for Figure 1 Top view of .

[0029] Figure 3 This is a structural diagram of the bottom perspective of the base of a dual-processing table CNC machining center according to one embodiment of the present invention.

[0030] Illustrations: 1. Base; 2. Linear rail boss; 3. First guide groove; 4. Chip discharge groove; 5. Chip discharge mechanism; 6. Second guide groove; 7. Support unit; 8. Column mounting platform; 11. Support plate; 12. Connecting reinforcement; 13. Support reinforcement rib; 14. Mounting hole; 15. Support foot; 31. First inclined surface; 32. Horizontal bottom surface; 41. Chip discharge port; 42. Arc-shaped bottom surface; 51. Screw rod; 52. Drive motor; 61. Second inclined surface; 71. First support block; 72. Second support block; 73. Hollow channel. DETAILED DESCRIPTION

[0031] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0032] like Figures 1 to 3 As shown, the present embodiment provides a base structure of a dual-table CNC machining center, comprising a base 1, wherein two linear rail bosses 2 parallel to each other for installing linear rails are provided on the top of the base 1 along a first direction, a first guide groove 3 is provided between the two linear rail bosses 2, and chip grooves 4 are respectively provided on the outsides of the two linear rail bosses 2 away from the first guide groove 3, and the two chip grooves 4 pass through the base 1 along the first direction, and second guide grooves 6 connecting the two chip grooves 4 along the second direction are respectively provided at both ends of the first guide groove 3, and the height of the bottom surface of the second guide groove 6 is lower than the height of the bottom surface of the first guide groove 3.

[0033] The base structure of the dual-table CNC machining center provided in this embodiment has two parallel linear rail bosses 2 for mounting linear rails, which can support two machining tables. The sliding drive device required for the machining tables can be set in the first guide groove 3 to save space in the base 1. The metal chips and cutting fluid generated during workpiece machining fall directly into the chip trough 4 outside the two linear rail bosses 2, while the remaining portion falls under the machining table. In order to allow the metal chips and cutting fluid that fall under the machining table to quickly flow into the chip trough 4, a first guide groove 3 and a second guide groove 6 connecting the first guide groove 3 and the chip trough 4 are set between the two linear rail bosses 2. The height difference between the first guide groove 3 and the second guide groove 6 allows the metal chips and cutting fluid to quickly flow into the chip trough 4 and then be discharged from the chip trough 4 to avoid accumulation on the base 1. The above design can automatically, timely and effectively discharge metal chips and cutting fluid, reduce the accumulation of metal chips and cutting fluid in the equipment, and improve the stability and machining efficiency of the equipment.

[0034] like Figure 1 and Figure 2 As shown, the bottom surface of the first guide groove 3 includes a first inclined surface 31 extending from the middle of the first guide groove 3 to both ends along the first direction, and a horizontal bottom surface 32 connected to the first inclined surface 31. The bottom surface of the second guide groove 6 includes a second inclined surface 61 extending from the middle of the second guide groove 6 to the chip removal groove 4 along the second direction. In order to enable the cutting fluid in the first guide groove 3 to flow quickly into the chip groove 4, the bottom surface of the first guide groove 3 is provided with an inclined slope, namely the first inclined surface 31. The first inclined surface 31 extends from the middle of the first guide groove 3 to both ends, that is, the bottom surface of the first guide groove 3 is high in the middle and low at both ends, so that the cutting fluid and metal chips can flow out from both ends, which changes the design of the conventional inclined slope to make the cutting fluid and metal chips flow out from one side of the guide groove, and improves the efficiency of the outflow of cutting fluid and metal chips. The first inclined surface 31 is connected to the horizontal bottom surface 32, and the horizontal bottom surface 32 is connected to the second guide groove 6. The design of the horizontal bottom surface 32 is to slow down the flow rate of the cutting fluid to prevent the cutting fluid from flowing too fast, causing part of the cutting fluid to fail to flow into the second guide groove 6, and rushing out of the base 1 to cause other parts of the equipment to be soaked in cutting fluid. The height of the bottom surface of the second guide groove 6 is lower than the height of the bottom surface of the first guide groove 3, forming a height difference between the two, so that the cutting fluid and metal chips have a higher flow rate when flowing into the second guide groove 6. The bottom surface of the second guide groove 6 also adopts the form of a middle high and two end bottoms, forming a second inclined surface 61 connecting the two chip grooves 4, so that the cutting fluid and metal chips can flow into the chip groove quickly.

[0035] like Figure 1 and Figure 2 As shown, two sets of support units 7 are disposed opposite each other within the first guide trough 3. These two sets of support units 7 are used to mount a drive device that drives the machining table to move along the linear rail. Each set of support units 7 includes a first support block 71 located on the first inclined surface 31 and a second support block 72 located on the horizontal bottom surface 32. Both the first support block 71 and the second support block 72 are provided with a hollow channel 73. The second support block 72 disposed on the horizontal bottom surface 32 is used to mount the drive motor, while the first support block 71 disposed on the first inclined surface 31 is used to mount the bearing seat. The drive shaft is disposed between the first support block 71 and the second support block 72. Both the first support block 71 and the second support block 72 are provided with a hollow channel 73 to avoid affecting the flow of cutting fluid and metal chips.

[0036] like Figure 1 and Figure 2As shown, a circular chip outlet 41 is provided at one end of the chip flute 4. The bottom surface of the chip flute 4 is an arcuate bottom surface 42, and the axis of the circular chip outlet 41 coincides with the axis of the arcuate bottom surface 42. The chip flute 4 is also equipped with a chip removal mechanism 5 for discharging cutting fluid and chips. The chip removal mechanism 5 includes a screw rod 51 and a drive motor 52 that drives the screw rod 51 to rotate. The drive motor 52 is arranged at the end of the chip flute 4 away from the chip outlet 41. The screw rod 51 is located in the chip flute 4, and the end of the screw rod 51 extends out of the chip outlet 41. The bottom surface of the chip flute 4 is a semicircular bottom surface 42, which facilitates the concentration of metal chips at the bottom of the chip flute 4. In order to enable the cutting fluid and metal chips to be discharged from the chip flute 4 more quickly and to avoid the accumulation of metal chips in the chip flute 4, a chip removal mechanism 5 is used instead of the generally used inclined surface. The drive motor 52 is installed at the end of the chip flute 4, and the spiral rod 51 is provided with the arc bottom surface 42 in the chip flute 4. The drive motor 52 drives the spiral rod 51 to rotate to generate a pushing force, thereby automatically discharging the cutting fluid and metal chips from the chip flute 4 more quickly. The end of the spiral rod 51 extends out of the chip outlet 41, so that the metal chips can be discharged from the chip outlet 41. A metal chip collector can be provided below the chip outlet 41. The metal chips that fall into the collector are separated from the cutting fluid. The operator can regularly clean and recycle the metal chips in the collector.

[0037] like Figure 3 As shown, several support plates 11 are provided on the underside of the chip flute 4. The chip flute 4 and the base 1 are integrally cast. To improve the strength of the base 1 and the support of the chip flute 4, several support plates 11 are designed on the underside of the chip flute 4. Instead of increasing the strength by thickening the wall of the chip flute 4, the weight of the base 1 is reduced while ensuring the overall strength.

[0038] like Figures 1 to 3 As shown, a column mounting platform 8 is provided on one side of the base 1, and a connecting reinforcement member 12 is provided between the column mounting platform 8 and the base 1. The column mounting platform 8 and the base 1 adopt an integral casting design. The column mounting platform 8 is located in the middle position of the side adjacent to the base 1 and the chip groove 4, forming a T-shaped structure with the base 1, which has stronger overall stability. At the same time, the connecting reinforcement member 12 is provided between the column mounting platform 8 and the base 1, further enhancing the stability of the structure.

[0039] like Figure 3 As shown, the base 1 is a hollow structure, and a number of cross-shaped support 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 requirements of use, the base 1 adopts a hollow structure, and cross-shaped support reinforcement ribs 13 are provided inside the hollow cavity. The support reinforcement ribs 13 ensure the support rigidity of the base 1, so that the base 1 can meet the requirements of use.

[0040] like Figure 3As shown, the bottom of the base 1 is provided with a plurality of mounting holes 14, which are mounted with adjustable support feet 15. To prevent the equipment from tilting or becoming unstable due to insufficient levelness of the mounting surface, multiple adjustable support feet 15 are provided on the base 1. The support feet 15 are inserted through the mounting holes 14, thereby enhancing the ability of the base 1 to adjust relative to the ground, ensuring that the equipment is placed horizontally to meet the equipment requirements and improving the operational stability of the machine tool.

[0041] In the description of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Therefore, the term "first," "second," and the like may explicitly or implicitly include one or more of the features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A base structure for a dual-table CNC machining center, comprising a base, characterized in that: The top of the base is provided with two linear rail bosses parallel to each other for installing the linear rail along the first direction, a first guide groove is provided between the two linear rail bosses, and chip removal grooves are provided on the outside of the two linear rail bosses away from the first guide groove. The two chip removal grooves pass through the base along the first direction, and second guide grooves are respectively provided at both ends of the first guide groove, which connect the two chip removal grooves along the second direction, and the height of the bottom surface of the second guide groove is lower than the height of the bottom surface of the first guide groove.

2. The base structure of the dual-platform CNC machining center according to claim 1 is characterized in that: The bottom surface of the first guide groove includes a first inclined surface extending from the middle of the first guide groove to both ends along a first direction, and a horizontal bottom surface connected to the first inclined surface.

3. The base structure of the dual-platform CNC machining center according to claim 2, characterized in that: Two groups of support units are oppositely arranged in the first guide groove, and the two groups of support units are used to install a driving device that drives the processing table to move along the linear rail. Each group of support units includes a first support block located on the first inclined surface and a second support block located on the horizontal bottom surface. The first support block and the second support block are both provided with a hollow channel.

4. The base structure of the dual-platform CNC machining center according to claim 2, characterized in that: The bottom surface of the second guide groove includes a second inclined surface extending from the middle of the second guide groove toward the chip discharge groove along the second direction.

5. The base structure of the dual-platform CNC machining center according to claim 1 is characterized in that: A circular chip outlet is provided at one end of the chip removal groove, and the bottom surface of the chip removal groove is an arc-shaped bottom surface, and the circular chip outlet coincides with the axis of the arc-shaped bottom surface.

6. The base structure of the dual-platform CNC machining center according to claim 5, characterized in that: It also includes a chip removal mechanism for discharging cutting fluid and chips, the chip removal mechanism includes a screw rod and a drive motor that drives the screw rod to rotate, the drive motor is arranged at the end of the chip removal groove away from the chip discharge port, the screw rod is located in the chip removal groove, and the end of the screw rod extends out of the chip discharge port.

7. The base structure of a dual-platform CNC machining center according to any one of claims 1 to 6, characterized in that: A plurality of support plates are provided on the lower side of the chip removal groove.

8. The base structure of a dual-platform CNC machining center according to any one of claims 1 to 6, characterized in that: A column mounting platform is provided on one side of the base, and a connecting reinforcement is provided between the column mounting platform and the base.

9. The base structure of a dual-platform CNC machining center according to any one of claims 1 to 6, characterized in that: The base is a hollow structure, and a plurality of cross-shaped supporting reinforcement ribs are provided inside the base.

10. The base structure of a dual-platform CNC machining center according to any one of claims 1 to 6, 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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