Five-axis machine tool and cement foundation

Abstract

The five-axis machine tool comprises a machine table structure, the machine table structure is arranged on the other side of the top of a cement foundation structure, mounting holes are formed in the two sides of the bottom of the machine table structure, and the machine table structure is connected with the cement foundation structure through the mounting holes. The design is reasonable, the five-axis working main machine and the machine table structure are installed through the two cement foundation bodies correspondingly, the five-axis working main machine and the machine table structure are arranged in a separated mode, and the situation that the precision of a finished workpiece is reduced due to the fact that the five-axis working main machine and the machine table structure are affected by vibration in the operation process is reduced; the cement foundation body is fixed separately, all parts are stabilized and are not influenced by vibration in work, the cement foundation body is fixed separately to the cement foundation structure, the defects of precision, edge breakage and the like caused by mutual vibration in work can be reduced, and the yield is improved.

Description

Technical Field

[0001] The present invention mainly relates to the field of five-axis linkage machine tools, and particularly relates to a five-axis machine tool and a cement foundation. Background Art

[0002] Five-axis machine tools play a crucial role in high-end manufacturing industries such as aerospace, precision molds, automobiles, and energy equipment because they can achieve efficient and high-precision machining of complex spatial curved surfaces; With the continuous improvement of the requirements for machining accuracy and efficiency, the dynamic performance of five-axis machine tools themselves (such as stability and vibration resistance under high-speed movement) and the geometric accuracy retention during long-term operation have become key limiting factors. The vibration generated during the machining process of the machine tool (including spindle rotation vibration, vibration caused by feed movement, cutting force excitation, etc.) will directly affect the quality of the machined surface (such as surface roughness and waviness), dimensional accuracy, and shape accuracy, and even lead to increased tool wear or chipping. At the same time, environmental vibration (such as the operation of nearby equipment and ground traffic) will also be transmitted to the machine tool through the foundation, interfering with the machining process; Ordinary concrete is relatively limited in terms of damping performance (vibration absorption ability), and the attenuation effect on medium and high-frequency vibration (especially the vibration generated inside the machine tool) is not ideal. At the same time, the five-axis machine tool and the workbench are both installed on the top of the same cement base, and interference will occur during their operation, thereby secondarily affecting the machining accuracy of the workpiece.

[0003] It should be noted that the above content belongs to the technical cognition scope of the inventor. Due to the vast and complex technical content in this field, the above content of this application does not necessarily constitute the prior art. Summary of the Invention

[0004] 1. Technical problems to be solved by the invention: The present invention provides a five-axis machine tool and a cement foundation to solve the technical problems existing in the above background art.

[0005] 2. Technical solutions: To achieve the above object, the technical solution provided by the present invention is: a five-axis machine tool, including a five-axis main machine, the five-axis main machine is arranged on one side of the top of the cement foundation structure, installation holes are arranged on both sides of the bottom of the five-axis main machine, and the five-axis main machine is connected to the cement foundation structure through the installation holes; A machine table structure, the machine table structure is arranged on the other side of the top of the cement foundation structure, installation holes are arranged on both sides of the bottom of the machine table structure, and the machine table structure is connected to the cement foundation structure through the installation holes.

[0006] Further, the five-axis working main machine includes a main machine body, a moving table and a lifting table. One side of the outer wall of the main machine body is rotatably connected to a first transmission lead screw. One end of the first transmission lead screw is provided with a first driving motor, and the first driving motor is connected to the main machine body. The top and bottom of one side outer wall of the main machine body are provided with first guide rails, and a moving table is arranged between the two first guide rails.

[0007] Further, the bottom of the moving table is provided with a mating hole and a guide block. The mating hole is in mutual cooperation with the first transmission lead screw, and the guide block is slidably connected to the first guide rail. The two sides of the outer wall of the moving table are provided with second guide rails, and a second servo motor is arranged on the top of the middle of the moving table. The output end of the second servo motor is provided with a second transmission lead screw.

[0008] Further, the bottom of the lifting table is provided with a mating hole and a guide block. The mating hole is in mutual cooperation with the second transmission lead screw, and the guide block is slidably connected to the second guide rail. The top of the lifting table is provided with a third servo motor, and the output end of the third servo motor is provided with a main shaft.

[0009] Further, the machine table structure includes a moving lead screw rotatably connected to both sides inside the placing shell. A moving frame is arranged between the two moving lead screws. A cross bar is arranged inside the moving frame, and a motor is arranged inside the cross bar. The output end of the motor is provided with a placing table.

[0010] A cement foundation includes a cement foundation structure, which includes a cement layer. The top of the cement layer is provided with a cement foundation body. The number of the cement foundation bodies is set to two. One cement foundation body is connected to the five-axis working main machine, and the other cement foundation body is connected to the machine table structure.

[0011] Further, a buffer layer is arranged on the top of the cement layer, and an anti-slip layer is arranged on the top of the buffer layer. The highest point of the anti-slip layer and the highest point of the cement foundation body are located in the same cross section.

[0012] Further, a plurality of studs are arranged on the top of the cement foundation body, and nuts are threadedly connected to the outer walls of the studs.

[0013] 3. Beneficial effects: Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects: In the present invention, by providing two basic cement floor bodies, the two basic cement floor bodies are respectively used to install the five-axis working main machine and the machine table structure, so that the five-axis working main machine and the machine table structure are separately arranged, reducing the mutual influence of vibrations during the operation of the five-axis working main machine and the machine table structure, thereby reducing the precision of the workpiece finished product. The basic cement floor bodies are separately fixed, and each part is stable and not affected by each other due to vibrations during work. They are separately fixed to the cement foundation structure, which can reduce the adverse effects such as mutual vibration affecting precision and chipping during work, and improve the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structure schematic diagram of the present invention; Figure 2 is a three-dimensional structure schematic diagram of the cement foundation structure of the present invention; Figure 3 is a three-dimensional unfolded structure schematic diagram of the cement foundation structure of the present invention; Figure 4 is a three-dimensional structure schematic diagram of the machine table structure of the present invention; Figure 5 is a three-dimensional structure schematic diagram of the five-axis working main machine of the present invention.

[0015] REFERENCE SIGNS: 1, cement foundation structure; 101, cement layer; 102, buffer layer; 103, anti-slip layer; 104, basic cement floor body; 105, stud; 2, five-axis working main machine; 201, main machine body; 202, first guide rail; 203, first drive motor; 204, first transmission screw rod; 205, moving table; 206, second guide rail; 207, second servo motor; 208, second transmission screw rod; 209, lifting table; 210, third servo motor; 211, main shaft; 3, machine table structure; 301, placing housing; 302, moving screw rod; 303, moving frame; 304, cross bar; 305, placing table. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0017] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is 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.

[0018] In addition, the terms "first" and "second" 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, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "joined", "fixed", "provided with", "arranged on", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment

[0020] Referring to the attached Figures 1-5 , a five-axis machine tool and a cement foundation, comprising a five-axis main machine 2, the five-axis main machine 2 is arranged on one side of the top of the cement foundation structure 1, mounting holes are arranged on both sides of the bottom of the five-axis main machine 2, and the five-axis main machine 2 is connected to the cement foundation structure 1 through the mounting holes; A machine table structure 3, the machine table structure 3 is arranged on the other side of the top of the cement foundation structure 1, mounting holes are arranged on both sides of the bottom of the machine table structure 3, and the machine table structure 3 is connected to the cement foundation structure 1 through the mounting holes.

[0021] Further, the five-axis working host 2 includes a host body 201, a moving table 205, and a lifting table 209. One side of the outer wall of the host body 201 is rotatably connected to a first driving lead screw 204. One end of the first driving lead screw 204 is provided with a first driving motor 203, and the first driving motor 203 is connected to the host body 201. The top and bottom of one side outer wall of the host body 201 are provided with first guide rails 202. A moving table 205 is arranged between the two first guide rails 202. The bottom of the moving table 205 is provided with a mating hole and a guide block. The mating hole is in mutual cooperation with the first driving lead screw 204, and the guide block is slidably connected to the first guide rail 202. The two sides of the outer wall of the moving table 205 are provided with second guide rails 206. The top of the middle of the moving table 205 is provided with a second servo motor 207. The output end of the second servo motor 207 is provided with a second driving lead screw 208. The bottom of the lifting table 209 is provided with a mating hole and a guide block. The mating hole is in mutual cooperation with the second driving lead screw 208, and the guide block is slidably connected to the second guide rail 206. The top of the lifting table 209 is provided with a third servo motor 210. The output end of the third servo motor 210 is provided with a main shaft 211. Start the first driving motor 203, the first driving motor 203 drives the first driving lead screw 204 to rotate, the first driving lead screw 204 drives the moving table 205 to move left and right, then start the second servo motor 207, the second servo motor 207 drives the second driving lead screw 208 to rotate, the second driving lead screw 208 drives the lifting table 209 to lift, then align the main shaft 211 with the workpiece, and then start the third servo motor 210, the third servo motor 210 drives the main shaft 211 to rotate, so that the main shaft 211 processes the workpiece.

[0022] Further, the machine table structure 3 includes a placement housing 301. The two sides inside the placement housing 301 are rotatably connected to moving lead screws 302. A moving frame 303 is arranged between the two moving lead screws 302. A cross bar 304 is arranged inside the moving frame 303. A motor is arranged inside the cross bar 304. The output end of the motor is provided with a placement table 305. When the workpiece needs to be processed, the workpiece is placed on the top of the placement table 305 for fixation. At the same time, a motor is arranged on one side of the placement housing 301, and the output end of the motor is connected to the moving lead screw 302. Start the motor, the motor drives the moving lead screw 302 to rotate, the moving lead screw 302 drives the moving frame 303 to move, so that the moving frame 303 drives the cross bar 304 to move, for adjusting the position of the workpiece. At the same time, start the motor inside the cross bar 304, the motor drives the placement table 305 to rotate, and the placement table 305 drives the workpiece to rotate.

[0023] A cement foundation, including a cement foundation structure 1, which includes a cement layer 101. On the top of the cement layer 101, there is a cement foundation body 104. The number of the cement foundation bodies 104 is set to two. One cement foundation body 104 is connected to a five-axis working main machine 2, and the other cement foundation body 104 is connected to a machine table structure 3. On the top of the cement layer 101, there is a buffer layer 102. On the top of the buffer layer 102, there is an anti-slip layer 103. The highest point of the anti-slip layer 103 and the highest point of the cement foundation body 104 are located in the same cross-section. On the top of the cement foundation body 104, there are studs 105. The number of the studs 105 is set to multiple. Nuts are threadedly connected to the outer wall of the studs 105. When it is necessary to install the five-axis working main machine 2 and the machine table structure 3, align the installation holes on both sides of the five-axis working main machine 2 and the machine table structure 3 with the studs 105, and then install nuts on the outer wall of the studs 105, so as to stably fix the five-axis working main machine 2 and the machine table structure 3 on the tops of the two cement foundation bodies 104 respectively.

[0024] 1. Vibration isolation experimental data of the split-type cement foundation Test method: Under the same working conditions (spindle speed 8,000 rpm, feed rate 10 m / min), compare the vibration transfer effects of the traditional integral foundation and the split-type foundation, as follows:

[0025] Conclusion: The split-type cement foundation effectively blocks the vibration transfer between the main machine and the machine table. The attenuation rate of high-frequency vibration (>500 Hz) reaches more than 60%, and the defective rate of chipping is significantly reduced.

[0026] 2. Laminated materials and parameters of the cement foundation

[0027] The surface of the anti-slip layer 103 is flush with the top surface of the cement foundation body 104 to ensure that there is no height difference on the equipment installation surface.

[0028] 3. Material optimization and experimental verification of the cement foundation body 104 Material selection: Polymer concrete (PMC) Composition: Epoxy resin matrix + granite aggregate (particle size 5 - 20 mm) + silica fume filler Performance advantages (vs ordinary concrete): Damping coefficient 0.03 - 0.06 (ordinary concrete: 0.01 - 0.02) Vibration attenuation time is shortened by 40% (time required for the amplitude to decay to 10%) Coefficient of thermal expansion 9×10⁻ 6 / ℃ (ordinary concrete: 12×10⁻6 / °C) Vibration reduction comparison experiment:

[0029] The natural frequency of the polymer concrete matrix is increased by 30%, the resonance amplitude is reduced by 56%, and the temperature stability is increased by 63%, making it more suitable for high-precision machining environments.

[0030] Through the split polymer concrete matrix + three-layer vibration reduction foundation structure: Vibration isolation: The mutual interference between the main machine and the machine table vibration is reduced by >60%, and the surface roughness R of the workpiece is improved from 1.6 μm to 0.8 μm; Thermal stability: After continuous operation for 8 hours, the equipment positioning error ≤ ±5 μm (traditional solution > ±15 μm); Yield improvement: The defective rate of workpiece chipping is stably controlled within 1.5% (original solution 3.5 - 4.0%).

[0031] The above-described embodiments merely represent certain implementation manners of the present invention, and their descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the present invention patent; it should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention; therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A five-axis machine tool, characterized in that: including A five-axis working main machine (2), the five-axis working main machine (2) is arranged on one side of the top of the cement foundation structure (1), installation holes are arranged on both sides of the bottom of the five-axis working main machine (2), and the five-axis working main machine (2) is connected to the cement foundation structure (1) through the installation holes; A machine table structure (3), the machine table structure (3) is arranged on the other side of the top of the cement foundation structure (1), installation holes are arranged on both sides of the bottom of the machine table structure (3), and the machine table structure (3) is connected to the cement foundation structure (1) through the installation holes.

2. The five-axis machine tool according to claim 1, wherein: The five-axis working main machine (2) includes a main machine body (201), a moving table (205) and a lifting table (209). One outer wall of the main machine body (201) is rotatably connected to a first transmission lead screw (204). One end of the first transmission lead screw (204) is provided with a first driving motor (203), and the first driving motor (203) is connected to the main machine body (201). First guide rails (202) are arranged at the top and bottom of one outer wall of the main machine body (201), and a moving table (205) is arranged between the two first guide rails (202).

3. The five-axis machine tool according to claim 2, characterized in that: The bottom of the moving table (205) is provided with a mating hole and a guide block. The mating hole cooperates with the first transmission lead screw (204), the guide block is slidably connected to the first guide rail (202), second guide rails (206) are arranged on both sides of the outer wall of the moving table (205), and a second servo motor (207) is arranged at the top of the middle of the moving table (205). The output end of the second servo motor (207) is provided with a second transmission lead screw (208).

4. A five-axis machine tool according to claim 3, characterized in that: The bottom of the lifting table (209) is provided with a mating hole and a guide block. The mating hole cooperates with the second transmission lead screw (208), the guide block is slidably connected to the second guide rail (206), and a third servo motor (210) is arranged at the top of the lifting table (209). The output end of the third servo motor (210) is provided with a main shaft (211).

5. A five-axis machine tool according to claim 1, characterized in that: The machine table structure (3) includes moving lead screws (302) rotatably connected to both sides inside the placing shell (301). A moving frame (303) is arranged between the two moving lead screws (302). A cross bar (304) is arranged inside the moving frame (303), and a motor is arranged inside the cross bar (304). The output end of the motor is provided with a placing table (305).

6. A cement foundation, characterized in that: including A cement foundation structure (1) includes a cement layer (101). The top of the cement layer (101) is provided with a cement foundation body (104). The number of the cement foundation bodies (104) is set to two. One cement foundation body (104) is connected to the five-axis working main machine (2), and the other cement foundation body (104) is connected to the machine table structure (3).

7. A cement foundation according to claim 6, characterized in that: A buffer layer (102) is arranged on the top of the cement layer (101), and an anti-slip layer (103) is arranged on the top of the buffer layer (102). The highest point of the anti-slip layer (103) and the highest point of the cement foundation body (104) are located in the same cross section.

8. A cement foundation according to claim 6, characterized in that: A stud (105) is provided at the top of the cement floor base body (104), the number of the studs (105) is set to be multiple, and nuts are threadedly connected to the outer walls of the studs (105).

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