Base structure of high-precision five-axis machine tool

Abstract

The invention relates to the technical field of machine tools, and discloses a base structure of a high-precision five-axis machine tool, which comprises a base body, a tool magazine and a chip groove, and the base body is provided with a mounting cavity; the tool magazine is suspended in the mounting cavity; the chip groove is formed in the bottom end of the mounting cavity and communicates with the mounting cavity. The mounting cavity of the structure is provided with an opening towards one side, a base body at the top of the cavity bears a tool magazine suspension point, a chip removal channel is integrated at the bottom of the tool magazine, tool chip separation is achieved, and impurities such as cutting fluid, guide rail oil and small chips directly fall into a chip removal groove in the bottom. According to the suspension type tool magazine, the bottom space is released, the chip removal groove can penetrate through the base body, the chip removal and drainage problems are solved through space reconstruction, and the precision stability of a five-axis machine tool is improved on the premise that an existing structure is not greatly changed.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tools, and in particular to a base structure of a high-precision five-axis machine tool. Background Art

[0002] Five-axis vertical machining centers (VMCs) play a crucial role in modern high-end manufacturing, enabling high-precision and efficient machining of complex curved surfaces. As the fundamental support component of the machine tool, the rigidity, stability, and chip removal performance of the base directly determine the overall machining accuracy, dynamic response, and long-term operational reliability of the machine.

[0003] However, the base structure of related high-precision five-axis vertical machining center machines, especially in the spatial layout of the tool magazine and turntable and the chip and drainage performance, has many inherent defects that affect the accuracy, efficiency and reliability of the machine tools. Summary of the Invention

[0004] In view of this, the present invention provides a base structure for a high-precision five-axis machine tool to solve the problem that the base structure of the related high-precision five-axis vertical machining center machine tool, especially in the spatial layout of the tool magazine and turntable and the chip removal and drainage performance, has many inherent defects that affect the accuracy, efficiency and reliability of the machine tool.

[0005] In a first aspect, the present invention provides a base structure for a high-precision five-axis machine tool, comprising:

[0006] A base body, wherein a mounting cavity is formed on the base body;

[0007] A tool magazine, the tool magazine being suspended and mounted in the mounting cavity;

[0008] A chip removal groove is arranged at the bottom end of the installation cavity, and the chip removal groove is communicated with the installation cavity.

[0009] Beneficial Effects: The mounting cavity has an opening toward one side, and the base body at the top of the cavity supports the tool magazine suspension point. A chip removal channel is integrated at the bottom of the tool magazine to separate the cutting tools and chips, allowing impurities such as cutting fluid, guide rail oil, and fine debris to fall directly into the chip removal groove at the bottom. Compared with the existing situation where the tool magazine is horizontally mounted on the bottom surface of the inner cavity of the base body, which occupies the lower space of the base and causes poor chip removal, the present invention uses a suspended tool magazine to free up the bottom space, allowing the chip removal groove to penetrate the base body. This solves the chip removal and drainage problems through spatial reconstruction, and improves the precision and stability of the five-axis machine tool without significantly changing the existing structure.

[0010] In an optional embodiment, the base body includes:

[0011] base;

[0012] a first side wall and a second side wall, wherein the first side walls are vertically arranged on two sides of the base opposite to each other, and the second side wall is installed between the two first side walls;

[0013] a top wall, the top wall being horizontally mounted on top ends of inner walls of the first side wall and the second side wall;

[0014] The base, the first side wall, the second side wall and the top wall enclose the mounting cavity and the chip removal groove.

[0015] In an optional embodiment, a plurality of fixing holes are provided on the top wall;

[0016] A mounting lock is provided on the top surface of the tool magazine corresponding to the fixing hole, and the mounting lock is inserted into the fixing hole to install the tool magazine in the installation cavity.

[0017] Beneficial effect: A mounting lock is provided corresponding to the top of the tool magazine, and the mounting lock can be a mechanical lock or a bolt. The mounting lock is inserted into the fixing hole to hang the tool magazine in the mounting cavity. The base body can be an integral casting structure. Compared with the prior art, in which the tool magazine is horizontally mounted on the bottom surface of the inner cavity of the base body, an opening is required on the second side wall for two-way installation, in this embodiment, the tool magazine is suspended in the mounting cavity. The assembler only needs to insert the tool magazine from the opening of the base body and insert the three mounting locks into the corresponding three fixing holes to fix them. There is no need for an additional opening on the second side wall for assembly. The second side wall is a whole plate-shaped, completely closed, which solves the problem of insufficient rigidity caused by the traditional open structure.

[0018] In an optional embodiment, the base structure of the high-precision five-axis machine tool further includes a rib plate, and the rib plate is arranged on the first side wall.

[0019] In an optional embodiment, the first side wall is provided with a first chip removal hole along the vertical direction, and the bottom end of the first chip removal hole is connected to the chip removal groove;

[0020] A first inclined surface is formed on the top surface of the first side wall, and the first inclined surface is connected to the top end of the first chip removal hole.

[0021] In an optional embodiment, a second inclined surface is formed on the inner wall of the first side wall.

[0022] In an optional embodiment, a chip discharge opening is formed on the second side wall, and the chip discharge opening is communicated with the chip discharge groove;

[0023] The top surface of the base is provided with a third inclined surface, and the plane where the third inclined surface is located coincides with the plane where the bottom surface of the inner wall of the chip discharge opening is located.

[0024] In an optional embodiment, from a direction away from the chip discharge opening to a direction close to the chip discharge opening, the third inclined surface gradually deviates and tilts toward a direction away from the top wall.

[0025] In an optional embodiment, the width of the third inclined surface gradually decreases from a direction away from the chip discharge opening to a direction close to the chip discharge opening.

[0026] Beneficial effects: Impurities such as the cutting fluid, guide rail oil and fine debris on the first side wall move along the first inclined surface toward the first chip removal hole until they slide into the chip removal groove. Part of the chips thrown out by the tool magazine processing in the installation cavity hits the inner wall of the first side wall, and may rebound to the third inclined surface multiple times, or slide on the second inclined surface, and finally fall on the third inclined surface. Another part of the chips thrown out by the tool magazine processing falls directly on the third inclined surface. In the end, all the chips slide on the third inclined surface and are concentrated by the third inclined surface to the chip removal port for discharge. The chip removal design with a large inclination angle from front to back is convenient for chip removal, and can automatically collect impurities such as cutting fluid, guide rail oil and fine debris from different positions, eliminating the dead corners of chip accumulation in traditional horizontal tool magazines, ensuring that impurities such as cutting fluid, guide rail oil and fine debris slide out of the chip removal port without residue, and solving the problem of side wall liquid leakage from the root. In addition, the bottom of the base body does not require a special avoidance design, the structure is simple and easy to cast, and the base casting structure is stable.

[0027] In an optional embodiment, it includes: a turntable, which is installed on the vertical surface of the first side wall away from the second side wall.

[0028] Beneficial Effects: Compared to the prior art where the turntable is installed horizontally, requiring vertical clearance for rotation, which increases the overall height of the machine tool and occupies more factory space, this embodiment installs it vertically, eliminating the need for vertical clearance and reducing the machine tool height. Furthermore, impurities such as cutting fluid and fine chips easily accumulate at the bottom of a conventional horizontal turntable, requiring machine downtime for cleaning and impacting efficiency. With no direct contact between the turntable and the base's chip chute, impurities such as cutting fluid and fine chips freely fall into the chip chute below, reducing the likelihood of chip accumulation in the turntable area. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is an axonometric view of a base structure of a high-precision five-axis machine tool according to an embodiment of the present invention;

[0031] Figure 2 This is an axonometric view from another angle of the base structure of a high-precision five-axis machine tool according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic structural diagram of a high-precision five-axis machine tool according to an embodiment of the present invention, excluding the turntable from the base structure;

[0033] Figure 4 This is a schematic diagram of the overall structure of a base structure of a high-precision five-axis machine tool according to an embodiment of the present invention;

[0034] Figure 5 Schematic diagram of the structure of the first inclined surface and the first chip removal hole in an embodiment of the present invention;

[0035] Description of reference numerals:

[0036] 1. Base body; 11. Base; 12. First side wall; 121. First chip removal hole; 122. First inclined surface; 123. Second inclined surface; 13. Second side wall; 131. Chip removal opening; 14. Top wall; 141. Fixing hole; 15. Third inclined surface;

[0037] 2. Tool magazine; 21. Install lock;

[0038] 3. Chip removal groove;

[0039] 4. Rib board;

[0040] 5. Turntable. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0042] Five-axis vertical machining centers (VMCs) play a crucial role in modern high-end manufacturing, enabling high-precision and efficient machining of complex curved surfaces. As the fundamental support component of the machine tool, the rigidity, stability, and chip removal performance of the base directly determine the overall machining accuracy, dynamic response, and long-term operational reliability of the machine.

[0043] However, the base structure of the relevant high-precision five-axis vertical machining center machine tool, especially in the spatial layout of the tool magazine 2 and the turntable 5, the chip and water removal performance, and the overall structural rigidity and stability, has many inherent defects that affect the accuracy, efficiency and reliability of the machine tool.

[0044] In order to solve the above technical problems, the following Figures 1 to 5 , describing embodiments of the present invention.

[0045] According to an embodiment of the present invention, on the one hand, a base structure of a high-precision five-axis machine tool is provided, comprising: a base body 1, a tool magazine 2 and a chip removal groove 3.

[0046] like Figures 1 to 5 As shown, a mounting cavity is provided on the base body 1, the tool magazine 2 is suspended and installed in the mounting cavity, the chip groove 3 passes through the base body 1, the chip groove 3 is arranged at the bottom of the mounting cavity, and the chip groove 3 is connected to the mounting cavity.

[0047] The mounting cavity is open to one side, and the base body 1 at the top of the cavity supports the suspension point of the tool magazine 2. A chip removal channel is integrated at the bottom of the tool magazine 2 to separate the cutting tools and chips, allowing impurities such as cutting fluid, guide rail oil, and fine debris to fall directly into the bottom chip trough 3. Compared with the existing situation where the tool magazine 2 is horizontally mounted on the bottom surface of the inner cavity of the base body 1, which occupies the lower space of the base and causes poor chip removal, the present invention uses a suspended tool magazine to free up the bottom space, allowing the chip trough 3 to pass through the base body 1. This solves the chip removal and drainage problems through spatial reconstruction, and improves the precision and stability of the five-axis machine tool without significantly changing the existing structure.

[0048] In one embodiment, Figures 1 to 5As shown, the base body 1 includes: a base 11, a first side wall 12, a second side wall 13, and a top wall 14. The base 11 is located at the bottom end. Two first side walls 12 are provided. The two first side walls 12 are vertically and oppositely arranged on both sides of the base 11. The second side wall 13 is installed at the rear ends of the two first side walls 12. The bottom surface of the second side wall 13 is fixed to the upper wall surface of the rear end of the base 11. The two first side walls 12 of the second side wall 13 are respectively fixedly connected to the rear end inner walls of the two first side walls 12. The width of the top wall 14 is equal to the distance between the two first side walls 12, and the length of the top wall 14 is less than the length of the first side walls 12. The two sides of the top wall 14 are respectively fixed to the inner walls of the top ends of the two first side walls 12. Specifically, the rear end of the top wall 14 must be aligned with the rear ends of the first side walls 12. The base 11, the first side wall 12, the second side wall 13, and the top wall 14 enclose the installation cavity and the chip removal groove 3. A plurality of fixing holes 141 are provided on the top wall 14, which may be greater than or equal to three. In the present embodiment, three fixing holes 141 are provided. The three fixing holes 141 can form triangular stability to prevent the tool magazine 2 from shaking during operation. A mounting lock 21 is provided corresponding to the top of the tool magazine 2. The mounting lock 21 can be a mechanical lock or a bolt. The mounting lock 21 is inserted into the fixing hole 141 to suspend the tool magazine 2 in the mounting cavity. The base body 1 can be an integral casting structure. Compared with the prior art, in which the tool magazine 2 is horizontally mounted on the bottom surface of the inner cavity of the base body 1, an opening is required on the second side wall 13 for two-way installation, in the present embodiment, the tool magazine 2 is suspended in the mounting cavity. The assembler only needs to insert the tool magazine 2 from the opening of the base body 1 and insert and fix the three mounting locks 21 into the corresponding three fixing holes 141. No additional opening is required on the second side wall 13 for assembly. The second side wall 13 is a whole plate-shaped, completely closed, which solves the problem of insufficient rigidity caused by the traditional open structure.

[0049] In one embodiment, Figures 1 to 5 As shown, the base structure of the high-precision five-axis machine tool also includes a rib plate 4, which is disposed on the first side wall 12. Rib plate 4 is a large triangular structure, extending diagonally from the upper side wall to the base of the base 11. This design efficiently transfers upper loads to the base, significantly reducing base deformation.

[0050] In one embodiment, Figures 1 to 5As shown, the top surface of the first side wall 12 is also provided with a support rail. A first chip removal hole 121 is vertically defined in the first side wall 12. The bottom end of the first chip removal hole 121 communicates with the chip removal groove 3, and the top end of the first chip removal hole 121 extends to the top of the first side wall 12. A first inclined surface 122 is defined on the top surface of the first side wall 12. Two first inclined surfaces 122 are provided for each first side wall 12, one on either side of the first chip removal hole 121. The first inclined surfaces 122 gradually shift downward from the end away from the first chip removal hole 121 to the end closer to the first chip removal hole 121, forming a shape with the end closer to the first chip removal hole 121 being lower and the end farther from the first chip removal hole 121 being higher. This allows cutting fluid, guide rail oil, and fine chips on the first side wall 12 to move along the first inclined surfaces 122 toward the first chip removal hole 121 until they slide into the chip removal groove 3.

[0051] Specifically, the inner wall of the first chip removal hole 121 on the side away from the mounting cavity is tilted, and from the end away from the base 11 to the end close to the base, the inner wall gradually shifts and tilts toward the direction close to the mounting cavity. This setting is conducive to discharging the cutting fluid, guide rail oil and fine debris on the first side wall 12 directly into the chip removal groove 3.

[0052] like Figures 1 to 5 As shown, each first sidewall 12 has a second inclined surface 123 formed on its inner wall. The second inclined surface 123 is a large triangular surface. From the end away from the base 11 to the end closer to the base 11, the second inclined surface 123 gradually shifts toward the center of the base 11. From the end away from the second sidewall 13 to the end closer to the second sidewall 13, the base of the second inclined surface 123 gradually shifts toward the center of the base 11.

[0053] like Figures 1 to 5 As shown, a chip discharge opening 131 is provided on the second side wall 13, and the chip discharge opening 131 is connected to the chip discharge groove 3; a third inclined surface 15 is provided on the top surface of the base 11, and the plane where the third inclined surface 15 is located coincides with the plane where the bottom surface of the inner wall of the chip discharge opening 131 is located. From the direction away from the chip discharge opening 131 to the direction close to the chip discharge opening 131, the third inclined surface 15 gradually deviates in the direction away from the top wall 14. From the direction away from the chip discharge opening 131 to the direction close to the chip discharge opening 131, the width of the third inclined surface 15 gradually decreases. This makes the third inclined surface 15 form an inclined chip discharge surface with a higher end away from the chip discharge opening 131 and a lower end close to the chip discharge opening 131. And it makes the third inclined surface 15 form a chip collection surface with a wider end away from the chip discharge opening 131 and a narrower end close to the chip discharge opening 131.

[0054] The impurities such as the cutting fluid, guide rail oil and fine debris on the first side wall 12 move along the first inclined surface 122 toward the first chip removal hole 121 until they slide into the chip removal groove 3. Part of the chips thrown out by the tool magazine 2 in the installation cavity hits the inner wall of the first side wall 12, and may rebound onto the third inclined surface 15 multiple times, or slide on the second inclined surface 123, and finally fall on the third inclined surface 15. Another part of the chips thrown out by the tool magazine 2 falls directly on the third inclined surface 15. In the end, all the chips slide on the third inclined surface 15 and are concentrated by the third inclined surface 15 to the chip removal port 131 for discharge. By setting multiple inclined surfaces and designing the chip removal with a large inclination angle from front to back, chip removal is facilitated, and can automatically collect impurities such as cutting fluid, guide rail oil and fine debris from different positions, eliminating the dead corners of chip accumulation in the traditional horizontal tool magazine 2, ensuring that impurities slide out of the chip removal port 131 without residue, and solving the problem of side wall liquid leakage from the root. Furthermore, the bottom of the base body 1 does not require any special avoidance design, the structure is simple and easy to cast, and the base casting structure is stable.

[0055] In one embodiment, Figure 1 and Figure 2 As shown, the base structure of the high-precision five-axis machine tool includes: a turntable 5, which is installed on the vertical surface of the first side wall 12 away from the second side wall 13, and the third inclined surface 15 extends to the bottom of the turntable 5 away from the end of the chip discharge port 131. Compared with the prior art where the turntable 5 is installed horizontally, a height needs to be reserved in the vertical direction for the rotation of the turntable 5, which increases the overall height of the machine tool and occupies factory space, this embodiment installs it vertically, eliminates the vertical space requirement, and reduces the height of the machine tool. In addition, the bottom of the traditional horizontal turntable 5 is prone to accumulation of debris, which requires shutdown for cleaning, affecting efficiency. The turntable 5 has no direct contact with the base chip discharge groove 3, and the processing debris falls freely into the chip discharge groove 3 below, reducing the probability of chip accumulation in the turntable 5 area. Inclined surfaces are also provided on both sides of the end of the third inclined surface 15 away from the second side wall 13, which is used to collect chips or accumulated water on the third inclined surface 15.

[0056] In one embodiment, fourth inclined surfaces are provided on both sides of the upper surface of the top wall 14, and the fourth inclined surface is formed in a shape in which one end close to the second side wall 13 is higher and one end away from the second side wall 13 is lower, so that impurities such as cutting fluid, guide rail oil and fine debris flow from the fourth inclined surface into the chip groove 3 for discharge.

[0057] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A base structure for a high-precision five-axis machine tool, characterized in that: include: A base body (1), wherein a mounting cavity is provided on the base body (1); A tool magazine (2), the tool magazine (2) being suspended and mounted in the mounting cavity; A chip removal groove (3), wherein the chip removal groove (3) is arranged at the bottom end of the installation cavity, and the chip removal groove (3) is communicated with the installation cavity.

2. The base structure of the high-precision five-axis machine tool according to claim 1, characterized in that: The base body (1) comprises: base (11); a first side wall (12) and a second side wall (13), wherein the first side wall (12) is vertically arranged on two sides of the base (11) opposite to each other, and the second side wall (13) is installed between the two first side walls (12); A top wall (14), the top wall (14) being horizontally mounted on the top ends of the inner walls of the first side wall (12) and the second side wall (13); The base (11), the first side wall (12), the second side wall (13) and the top wall (14) enclose the mounting cavity and the chip removal groove (3).

3. The base structure of the high-precision five-axis machine tool according to claim 2, characterized in that: The top wall (14) is provided with a plurality of fixing holes (141); A mounting lock (21) is provided on the top surface of the tool magazine (2) corresponding to the fixing hole (141), and the mounting lock (21) is inserted into the fixing hole (141) to mount the tool magazine (2) in the mounting cavity.

4. The base structure of the high-precision five-axis machine tool according to claim 2, characterized in that: The base structure of the high-precision five-axis machine tool further comprises a rib plate (4), and the rib plate (4) is arranged on the first side wall (12).

5. The base structure of the high-precision five-axis machine tool according to claim 2, characterized in that: The first side wall (12) is provided with a first chip removal hole (121) along the vertical direction, and the bottom end of the first chip removal hole (121) is connected to the chip removal groove (3); A first inclined surface (122) is provided on the top surface of the first side wall (12), and the first inclined surface (122) is connected to the top end of the first chip removal hole (121).

6. The base structure of the high-precision five-axis machine tool according to claim 2, characterized in that: A second inclined surface (123) is formed on the inner wall of the first side wall (12).

7. The base structure of the high-precision five-axis machine tool according to claim 2, characterized in that: A chip removal opening (131) is provided on the second side wall (13), and the chip removal opening (131) is communicated with the chip removal groove (3); The top surface of the base (11) is provided with a third inclined surface (15), and the plane where the third inclined surface (15) is located coincides with the plane where the bottom surface of the inner wall of the chip removal opening (131) is located.

8. The base structure of the high-precision five-axis machine tool according to claim 7, characterized in that: From a direction away from the chip discharge opening (131) to a direction close to the chip discharge opening (131), the third inclined surface (15) gradually deviates and tilts in a direction away from the top wall (14).

9. The base structure of the high-precision five-axis machine tool according to claim 7, characterized in that: The width of the third inclined surface (15) gradually decreases from a direction away from the chip discharge opening (131) to a direction close to the chip discharge opening (131).

10. The base structure of the high-precision five-axis machine tool according to claim 7, characterized in that: include: A turntable (5) is installed on a vertical surface of the first side wall (12) away from the second side wall (13).

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