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KR-20260067477-A - Machining Center Tool processing system

KR20260067477AKR 20260067477 AKR20260067477 AKR 20260067477AKR-20260067477-A

Abstract

The present invention relates to a machining center tool (MCT) processing system, and more specifically, to a machining center tool processing system capable of stable X, Y, and Z axis processing, as well as A and C axis processing, even under vibration and shock occurring during processing. According to the present invention, a machining center tool can perform stable X, Y, and Z axis machining, as well as A and C axis machining, even under vibrations and shocks generated during processing such as cutting and machining. According to the present invention, the processing quality of a cuboid workpiece can be improved, processing time can be shortened, and processing manpower and costs can be reduced, thereby contributing significantly to increased productivity and cost reduction.

Inventors

  • 강휘원
  • 강대국

Assignees

  • 오엠씨 주식회사

Dates

Publication Date
20260513
Application Date
20241105

Claims (6)

  1. In a machining center tool (MCT) system that automatically switches between various tools and performs machining on a workpiece, A spindle (Spindle, 100) that fixes the above tool and rotates a vertical axis to perform machining on the above workpiece; An auto tool changer (200) that automatically replaces various tools on the spindle; A work table (300) capable of fixing and processing the above workpiece and moving along the X, Y, or Z axis; A control unit (400) that controls the machining process through a CNC (Computer Numerical Control) system operated by a program written using G-code or M-code; and A support member (500) that supports the above MCT processing system; An MCT processing system (1) characterized by including
  2. In paragraph 1, The above work table (300) is, A first servo motor (310) that controls the rotational movement of the A-axis of the work table (300) so that it can rotate around the X-axis and enable A-axis machining; and A first reduction gear (320) for adjusting the speed of the first servo motor (310) and increasing the torque to rotate the A-axis; An MCT processing system (1) characterized by including
  3. In paragraph 2, The above work table (300) is, A second servo motor (330) that controls the rotational movement of the C-axis of the work table (300) so that it can rotate around the Z-axis and enable C-axis machining; and A second reduction gear (340) for adjusting the speed of the second servo motor (330) and increasing the torque to rotate the C-axis; An MCT processing system (1) characterized by including
  4. In paragraph 3, The above MCT processing system (1) is, A cooling unit that cools the tool and the workpiece by spraying a coolant to cool the heat generated during processing; Includes more, The above cooling unit is, A cooling fluid composed of a dedicated cutting fluid to absorb heat generated during the cutting process and to lower the temperature of the tool and the workpiece; A cooling pump that supplies the above cooling fluid under pressure and sprays it onto the cutting area; A nozzle capable of adjusting the pressure or spraying time for spraying the cooling fluid onto the tool and the workpiece; A filter that filters out impurities and fine chips generated during cutting in the above cooling fluid; A cooling fluid tank that stores the above cooling fluid and supplies it through the above cooling pump when in use; A recirculation pump for using the cooling fluid and returning it to the cooling fluid tank for reuse; and A temperature sensor that detects the temperature by monitoring the temperature of the above cooling fluid; An MCT processing system (1) characterized by including
  5. In paragraph 4, The above support member (500) is, A cushioning support member (1000) that supports the support member (500) at the lower part of the support member (500) and absorbs vibrations and shocks generated during the processing process in the MCT processing system (1); Includes, The above buffer support member (1000) is, An upper support member (1020) having a rubber cap (1010) attached thereto that has frictional force to contact the base member (500) and prevent slipping; A first vibration absorbing member (1100) having a central axis that coincides with the upper support member (1020) and contacts the upper support member (1020) at one end surface to absorb vibrations and shocks transmitted in the direction of the central axis; One or more second vibration absorbing parts (1200) are provided at regular intervals along the circumferential direction of the first vibration absorbing part (1100) to absorb vibrations and shocks transmitted in the peripheral direction of the central axis direction; and A pocket support member (1030) that guides the vertical movement of the upper support member (1020) and includes the first vibration absorbing member (1100) and the second vibration absorbing member (1200) inside; An MCT processing system (1) characterized by including
  6. In paragraph 5, The first vibration absorption unit (1100) above is, A lower frame (1106) made of aluminum material, having a cone shape with a diameter that is horizontally cut at the top and gradually decreases from the bottom to the top; A first shock-absorbing layer (1110) made of polypropylene material, having a cone shape with a diameter that becomes progressively smaller from bottom to top and a top end that is cut horizontally like the shape of the lower frame (1106), and is hollow inside, which overlaps at the top of the lower frame (1106); A second shock-absorbing layer (1120) made of natural rubber material, which is positioned between each of the first shock-absorbing layers (1110), has a cone shape with its upper end cut horizontally like the first shock-absorbing layer (1110), has a hollow interior, overlaps with the first shock-absorbing layer (1110) in contact with the upper and lower surfaces; and An upper frame (1105) located at the upper end of the first shock-absorbing layer (1110) and the second shock-absorbing layer (1120) corresponding to the lower frame (1106); Includes, The above second vibration absorption unit (1200) is, A grounding electrode (1210) that contacts the upper surface at the lower part of the upper support member (1020), contacts the lower surface with one end of the spring (1220), and forms a grounding voltage of the current flowing through the spring (1220); A spring (1220) made of a shape memory alloy material, wherein one end contacts the lower surface of the ground electrode (1210) and the other end is adjacent to a cooling fan (1230), and an electric signal is applied to the other end to form a voltage and cause current to flow, thereby generating resistance heat due to the current and being stored in an elongated shape when the temperature rises, and being stored in a shortened shape when the temperature falls due to cooling; A cooling fan (1230) positioned adjacent to the other end of the spring (1220) to air cool the spring (1220); An elastic reinforcing member (1240) having a bellows structure, made of sorbothane material, including the spring (1220), which extends or compresses together with the spring (1220) when the spring (1220) is extended or compressed to reinforce the elastic force of the spring (1220); and An elasticity control unit (1250) capable of controlling the elasticity of the spring (1220) by applying an electrical signal that forms a voltage through the other end of the spring (1220) and the ground electrode (1210) to cause current to flow; including An MCT machining system (1), characterized in that the elasticity control unit (1250) controls the elasticity of the spring (1220) by applying an electric signal to form a voltage between the spring (1220) and the ground electrode (1210) to increase the elasticity, thereby generating resistance heat due to the current to raise the temperature of the spring (1220) and create an elongated shape of the spring (1220), and by sending an operation signal to the cooling fan (1230) to air-cool the spring (1220) and create a shortened shape of the spring (1220) to reduce the elasticity.

Description

MCT Machining Center Tool processing system The present invention relates to a machining center tool (MCT) processing system, and more specifically, to a machining center tool processing system capable of stable X, Y, and Z axis processing, as well as A and C axis processing, even under vibration and shock occurring during processing. Generally, the term "machine tool" refers collectively to machines used for manufacturing, typically meaning metalworking machines. In other words, a machine tool is a machine that processes metal materials into the required shape by using cutting tools to perform operations such as cutting, machining, hole making, drilling, thread cutting, and grinding. Meanwhile, representative machine tools include the lathe and the machining center (MCT). Machine tools as described above can be classified according to the number of machining axes, and currently, 3-axis and 5-axis machine tools are the most widely used. A 3-axis machine tool enables 3-axis machining based on 3 machining axes, and a 5-axis machine tool enables 5-axis machining based on 5 machining axes. A machining center is a machine that processes workpieces using a main spindle that generally moves in three axes. Additionally, for 5-axis machining, a machining center is equipped with a table that rotates the workpiece around a rotation axis and a tilting axis perpendicular to the rotation axis; with the main spindle moving in three axes and the workpiece moving in two axes, machining can be performed in a total of five axes. A machining center capable of performing 5-axis machining in this way is generally also called a 5-axis machine. Typically, while 5-axis machine tools have the advantage of being able to machine various curved surfaces, they require a separate controller, resulting in a very high unit cost and making it difficult for small and medium-sized enterprises or small workshops to utilize them. In particular, although 3-axis machine tools offer better cost-effectiveness than 5-axis machine tools for 3-axis machining operations, there is no choice but to purchase a 5-axis machine tool if 5-axis machining operations must be performed even once, which results in a disadvantage of overall lower cost-effectiveness and work efficiency. In addition, there is a problem in that vibration and shock occur during the 5-axis machining process, making it difficult to perform stable machining processes such as cutting and cutting. FIG. 1 is a drawing illustrating an MCT processing system (1) according to one embodiment of the present invention. FIG. 2 is a drawing showing that an MCT machining system (1) according to one embodiment of the present invention operates on A and C axes in addition to X, Y, and Z axes. FIG. 3 is a diagram showing the configuration for an MCT machining system (1) according to one embodiment of the present invention to operate on A and C axes in addition to X, Y, and Z axes. FIG. 4 is a projected perspective view of the buffer support part (1000). FIG. 5 is an exploded perspective view of the buffer support part (1000). FIG. 6 is a perspective view of the second vibration absorption unit (1200). FIG. 7 is a projected exploded perspective view of the second vibration absorption unit (1200). In addition to the above objectives, other objectives and features of the present invention will become apparent through the description of embodiments with reference to the accompanying drawings. Preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that a detailed description of related known components or functions may obscure the essence of the present invention, such detailed description is omitted. Hereinafter, a machining center tool (MCT) processing system (1) according to one embodiment of the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a drawing illustrating an MCT machining system (1) according to an embodiment of the present invention. An MCT machining system (1) according to an embodiment of the present invention can automatically replace various tools and perform machining on a workpiece. Referring to FIG. 1, an MCT machining system (1) according to one embodiment of the present invention includes a spindle (100), an auto tool changer (200), a work table (300), a control unit (400), and a support unit (500). The spindle (100) can fix the tool and rotate the vertical axis to perform machining on the workpiece. The Auto Tool Changer (200) can automatically replace various tools on the spindle. The work table (300) can fix and process the workpiece and can move along the X, Y, or Z axis. The control unit (400) can control the machining process through a CNC (Computer Numerical Control) system that operates with a program written using G-code or M-code. Here, G-code and M-code are basic commands used in machine editing software. G-cod