A five-axis machining center with large workpiece loading and unloading capabilities

Abstract

This utility model discloses a five-axis machining center with large-size workpiece loading and unloading functions. It includes a machining center with a transport mechanism at its upper end for loading and unloading. The transport mechanism includes a slide rail, a movable frame, rollers, a slide bar, a functional compartment, a first reducer, a first motor, a rotary table, and mechanical grippers. The movable frame at the upper end of the machining center has rollers movably mounted at each of the four corners of its upper surface via rotating shafts. The movable frame is movably fitted onto the outer surface of the slide rail via the rollers. This utility model offers good performance, facilitating loading and unloading of the machining center without occupying floor space, thus not affecting subsequent maintenance operations. Furthermore, the device has a longer transport range, allowing for convenient direct transport of parts from the warehouse to the machining center, further improving the equipment's efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of five-axis machining centers, specifically a five-axis machining center with the function of loading and unloading large-sized workpieces. Background Technology

[0002] A five-axis machining center (also known as a five-axis linkage machining center) is a CNC machine tool that integrates high precision and high efficiency. Through the coordinated work of three linear axes (X, Y, and Z) and two rotary axes (A and C, or B and C), it enables flexible movement of the tool in three-dimensional space, thereby completing the precision machining of complex curved surfaces and irregular shapes. Its core advantage lies in completing multi-face machining in a single setup, significantly improving production efficiency and machining accuracy, making it an indispensable key piece of equipment in aerospace, automotive manufacturing, mold processing, and other fields. However, when dealing with large-sized parts, where manual loading and unloading is inconvenient, existing five-axis machining centers often use corresponding robotic loading and unloading devices for mechanical clamping and handling of the required parts. However, the existing robotic loading and unloading devices for such five-axis machining centers have the following drawbacks.

[0003] 1. Ground space occupation and maintenance obstacles

[0004] Existing robotic loading and unloading devices are limited by their loading and unloading range and usually need to be installed close to the machining center. While this layout can meet the needs of short-distance handling, it occupies valuable floor space. Especially in scenarios where multiple devices work together, it can easily create "spatial islands," hindering operators from performing routine maintenance of the machining center (such as tool replacement and troubleshooting) and adjusting the equipment layout, thus increasing the complexity of production management.

[0005] 2. Limited transport range and difficulties in cross-regional operations

[0006] Traditional robotic arms are designed with the perimeter of the machining center as their core. Their range of motion is limited by the length of the robotic arm, the degrees of freedom of the joints, and the working radius, making it difficult to achieve long-distance material handling. For example, when it is necessary to directly transport parts blanks from the warehouse to the machining center, existing devices rely on intermediate transfer links (such as AGV carts or manual secondary handling), resulting in redundant processes, low efficiency, and the risk of damage to the blanks due to bumps and knocks. Therefore, to address this problem, an improved five-axis machining center with the ability to load and unload large-sized workpieces is needed. Utility Model Content

[0007] The purpose of this invention is to provide a five-axis machining center with large-size workpiece loading and unloading functions to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a five-axis machining center with large-size workpiece loading and unloading functions, comprising a machining center, wherein a transport mechanism for loading and unloading is provided at the upper end of the machining center, the transport mechanism comprising a slide rail, a movable frame, rollers, a slide rod, a functional compartment, a first reducer, a first motor, a rotary table, and mechanical grippers. The upper end of the machining center is provided with a movable frame, wherein rollers are movably mounted at the four corners of the upper surface of the movable frame via rotating shafts, the movable frame is movably fitted onto the outer surface of the slide rail via the rollers, and slide rods are movably inserted at the four corners of the lower surface of the movable frame, a functional compartment is fixedly provided at the lower end of the slide rods, a first reducer is fixedly provided inside the functional compartment, a first motor is fixedly provided on one side of the first reducer, a rotary table is movably provided at the lower end of the functional compartment via rotating shafts, and mechanical grippers are fixedly provided on both sides of the lower end of the rotary table.

[0009] Preferably, an electric hoist is fixedly installed at the lower middle of the movable frame, and a lifting rope is wound around the outer surface of the electric hoist; the lifting rope driven by the electric hoist can move the functional compartment up and down, and the slide bar of this device can ensure the stability of the functional compartment when it moves up and down to prevent shaking.

[0010] Preferably, the lower end of the lifting rope is fixedly connected to the functional compartment via a hook. After the hook is removed, the slide bar can be pulled downward from the movable frame, and then the functional compartment can be transported away by a transport trolley for maintenance.

[0011] Preferably, the power output shaft of the first motor is connected to the rotating shaft of the rotary table via a first reducer. The first motor can drive the rotary table to rotate, thereby enabling the two mechanical grippers to switch back and forth. The purpose is to provide the transport mechanism of this device with two gripping positions. This way, each time a part is unloaded from the machining center, another part can be brought over. After unloading and gripping at the machining center, the first motor and the first reducer drive the rotary table to rotate 180 degrees each time, allowing for switching between the front and rear gripping positions. This allows the parts that need to be processed later to be quickly placed in the machining center, thus eliminating the need for the transport mechanism to repeatedly move and transport parts, improving transport efficiency.

[0012] Preferably, a second reducer is provided on the outside of the movable frame, and a second motor is fixedly provided on one side of the second reducer. The power output shaft of the second motor is connected to the roller through the second reducer. The second motor can drive the roller to rotate, thereby driving the entire transport mechanism to move along the slide rail.

[0013] Preferably, both the first motor and the second motor are servo motors, used in conjunction with a servo controller, to ensure that the first motor can accurately drive the turntable to rotate at an angle, and the second motor can accurately drive the movable frame to move back and forth along the slide rail.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The parts of this utility model can be transported and clamped by a transport mechanism. The transport mechanism is suspended high, which facilitates loading and unloading of materials in the machining center without occupying ground space, thus not affecting the subsequent maintenance operations of the machining center. At the same time, the transport range of this device is longer, which can facilitate the direct delivery of parts from the warehouse to the machining center, thereby further improving the use effect of the equipment.

[0016] 2. This utility model uses a first electric motor to drive the rotating table to rotate, thereby enabling the two mechanical grippers to switch back and forth. The purpose is to give the transport mechanism of this device two gripping positions. This way, each time a part is unloaded from the machining center, another part can be brought over. After the part is unloaded and gripped in the machining center, the first electric motor and the first reducer drive the rotating table to rotate 180 degrees each time, which can switch the gripping positions. This allows the parts that need to be processed later to be quickly placed in the machining center, thus saving the step of repeatedly moving the transport mechanism to transport parts and improving transport efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a five-axis machining center with large-size workpiece loading and unloading function according to the present invention;

[0018] Figure 2 This is a side view of a five-axis machining center with large-size workpiece loading and unloading function according to the present invention;

[0019] Figure 3 This is an overall structural view of the transport mechanism in a five-axis machining center with large-size workpiece loading and unloading function according to the present invention.

[0020] Figure 4 This utility model relates to a five-axis machining center with large-size workpiece loading and unloading functions. Figure 3 The front view;

[0021] Figure 5 This is an overall structural view of the mechanical gripper in a five-axis machining center with large-size workpiece loading and unloading functions according to the present invention.

[0022] In the diagram: 1. Machining center; 2. Slide rail; 3. Movable frame; 4. Roller; 5. Slide bar; 6. Functional compartment; 7. First reducer; 8. First motor; 9. Turntable; 10. Mechanical gripper; 11. Electric hoist; 12. Lifting rope; 13. Second reducer; 14. Second motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a five-axis machining center 1 with large-size workpiece loading and unloading function, including a machining center 1, the upper end of which is provided with a transport mechanism for loading and unloading, the transport mechanism including a slide rail 2, a movable frame 3, rollers 4, slide rods 5, a functional compartment 6, a first reducer 7, a first motor 8, a rotating table 9, and mechanical grippers 10. The upper end of the machining center 1 is provided with a movable frame 3, and rollers 4 are movably arranged at the four corners of the upper surface of the movable frame 3 via rotating shafts. The movable frame 3 is movably sleeved on the outer surface of the slide rail 2 via the rollers 4. Slide rods 5 are movably inserted at the four corners of the lower surface of the movable frame 3. The lower end of the slide rods 5 is fixedly provided with a functional compartment 6. The first reducer 7 is fixedly arranged inside the functional compartment 6. The first motor 8 is fixedly arranged on one side of the first reducer 7. The lower end of the functional compartment 6 is movably arranged with a rotating shaft via a rotating table 9. Mechanical grippers 10 are fixedly arranged on both sides of the lower end of the rotating table 9.

[0025] An electric hoist 11 is fixedly installed at the lower middle of the movable frame 3. A lifting rope 12 is wound around the outer surface of the electric hoist 11. The lifting rope 12 is wound by the electric hoist 11 to drive the functional compartment 6 to move up and down. The slide bar 5 of this device can ensure the stability of the functional compartment 6 when it moves up and down to prevent shaking.

[0026] The lower end of the lifting rope 12 is fixedly connected to the functional compartment 6 through a hook. After the hook is removed, the sliding rod 5 can be pulled downward from the movable frame 3. Then, the functional compartment 6 can be transported away by a transport trolley for maintenance.

[0027] The power output shaft of the first motor 8 is connected to the rotating shaft of the rotating table 9 via the first reducer 7. The first motor 8 can drive the rotating table 9 to rotate, thereby driving the two mechanical grippers 10 to switch back and forth. The purpose is to give the transport mechanism of this device two gripping positions. In this way, each time a part is unloaded from the machining center 1, another part can be brought over. After the machining center 1 completes the unloading and gripping, the first motor 8 and the first reducer 7 drive the rotating table 9 to rotate 180 degrees each time, which can switch the gripping position. This allows the parts that need to be processed later to be quickly placed in the machining center 1, thereby saving the step of repeatedly moving and transporting parts in one trip of the transport mechanism and improving transport efficiency.

[0028] A second reducer 13 is provided on the outside of the movable frame 3. A second motor 14 is fixedly provided on one side of the second reducer 13. The power output shaft end of the second motor 14 is connected to the roller 4 through the second reducer 13. The second motor 14 can drive the roller 4 to rotate, thereby driving the entire transport mechanism to move along the slide rail 2.

[0029] Both the first motor 8 and the second motor 14 are servo motors, which are matched with a servo controller to ensure that the first motor 8 can accurately drive the turntable 9 to rotate at an angle, and the second motor 14 can accurately drive the movable frame 3 to move back and forth along the slide rail 2.

[0030] Working principle: When using this device, the parts are processed through machining center 1. The parts are transported and clamped by a transport mechanism that is suspended high. Each time, the mechanical gripper 10 clamps the part and moves it through the roller 4, so that the gripper extends into machining center 1. Then the mechanical gripper 10 releases the gripper and places the part in machining center 1. This allows for convenient loading and unloading of parts in machining center 1 without occupying ground space, thus not affecting subsequent maintenance operations of machining center 1. At the same time, this device has a longer transport range, which can facilitate the direct transport of parts from the warehouse to machining center 1, thereby further improving the efficiency of the equipment.

[0031] Furthermore, when this device is in use, the first motor 8 can drive the rotating table 9 to rotate, thereby driving the two mechanical grippers 10 to switch back and forth. The purpose is to give the transport mechanism of this device two gripping positions. In this way, each time a part is unloaded from the machining center 1, another part can be brought over. After the machining center 1 completes the unloading and gripping, the first motor 8 and the first reducer 7 drive the rotating table 9 to rotate 180 degrees each time, which can switch the gripping position back and forth. This allows the parts that need to be processed later to be quickly placed in the machining center 1, thereby saving the step of repeatedly moving and transporting parts in one trip of the transport mechanism and improving transport efficiency.

[0032] The overall structure of the mechanical gripper 10 of this device can be as follows: Figure 5 As shown, since this is a mature existing technology, this application will not elaborate further.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A five-axis machining center with large-size workpiece loading and unloading function, comprising a machining center (1), characterized in that: The upper end of the machining center (1) is provided with a transport mechanism for loading and unloading materials. The transport mechanism includes a slide rail (2), a movable frame (3), rollers (4), a slide bar (5), a functional compartment (6), a first reducer (7), a first motor (8), a rotating table (9), and mechanical grippers (10). The upper end of the machining center (1) is provided with a movable frame (3). Rollers (4) are movably mounted at the four corners of the upper surface of the movable frame (3) via rotating shafts. The movable frame (3) is connected to the rollers (4) via rotating shafts. The movable frame (3) is movably sleeved on the outer surface of the slide rail (2). Slide rods (5) are movably inserted at the four corners of the lower surface of the movable frame (3). A functional compartment (6) is fixedly installed at the lower end of the slide rod (5). A first reducer (7) is fixedly installed inside the functional compartment (6). A first motor (8) is fixedly installed on one side of the first reducer (7). A rotating table (9) is movably installed at the lower end of the functional compartment (6) through a rotating shaft. Mechanical grippers (10) are fixedly installed on both sides of the lower end of the rotating table (9).

2. A five-axis machining center with large-size workpiece loading and unloading function according to claim 1, characterized in that: An electric hoist (11) is fixedly installed at the lower middle part of the movable frame (3), and a hoisting rope (12) is wrapped around the outer surface of the electric hoist (11).

3. A five-axis machining center with large-size workpiece loading and unloading function according to claim 2, characterized in that: The lower end of the hoisting rope (12) is fixedly connected to the functional compartment (6) via a hook.

4. A five-axis machining center with large-size workpiece loading and unloading function according to claim 1, characterized in that: The power output shaft of the first motor (8) is connected to the rotating shaft of the rotating table (9) through the first reducer (7).

5. A five-axis machining center with large-size workpiece loading and unloading function according to claim 1, characterized in that: A second reducer (13) is provided on the outside of the movable frame (3), and a second motor (14) is fixedly provided on one side of the second reducer (13). The power output shaft end of the second motor (14) is connected to the roller (4) through the second reducer (13).

6. A five-axis machining center with large-size workpiece loading and unloading function according to claim 5, characterized in that: Both the first motor (8) and the second motor (14) are servo motors.

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