Numerical control machine tool with chain type tool magazine

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool with a chain type tool magazine, which comprises a base and a shell covering the top of the base, a portal frame and a saddle are fixedly connected to the top of the base, a plurality of stand columns are installed on one side of the portal frame, and a machine tool spindle is installed in each stand column. One side of the saddle is located in the portal frame, a plurality of pushing frames are installed on the saddle in a sliding mode, the top of each pushing frame is fixedly connected with a chain type tool magazine mechanism matched with a machine tool spindle, and the other side of the saddle is provided with a driving piece in transmission connection with the bottoms of the pushing frames. The chain type tool magazine mechanism is fixed above the pushing frame, so that the driving piece can obtain a larger stroke space, a larger pushing stroke can be achieved in a limited space, the space utilization rate of the numerical control machine tool is improved, meanwhile, the carrying plate is matched with the portal frame, the multiple supporting effect can be achieved on the large-stroke pushing frame and the chain type tool magazine mechanism, and the working efficiency of the numerical control machine tool is improved. And the accuracy of tool changing is ensured.

Description

A CNC machine tool with a chain-type tool magazine Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a CNC machine tool with a chain-type tool magazine. Background Technology

[0002] In the field of machining, CNC machine tools are the core equipment of modern manufacturing. Their performance and efficiency are directly related to product quality and production costs. With the advancement of technology and changes in market demand, CNC machine tools are developing towards high precision, high efficiency, and high automation. As an important component of CNC machine tools, chain-type tool magazines can automatically store, select, and replace cutting tools, greatly improving the machining efficiency and flexibility of machine tools.

[0003] However, traditional CNC machine tools have some shortcomings in the design of chain tool magazines. For example, the tool magazine mechanism is often fixed in a certain position of the machine tool, which limits the movement of the tool magazine. This causes the machine tool to pause processing when changing tools, reducing the overall processing efficiency. At the same time, if the movement of the tool magazine is too long, it will often be unstable during the pushing process, affecting the tool changing accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a CNC machine tool with a chain-type tool magazine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A CNC machine tool with a chain-type tool magazine includes a base and a housing covering the top of the base. A gantry and a saddle are fixedly connected to the top of the base. Several columns are installed on one side of the gantry, and a machine tool spindle is installed in each column. One side of the saddle is located inside the gantry, and several pushers are slidably installed on the saddle. A chain-type tool magazine mechanism that cooperates with the machine tool spindle is fixedly connected to the top of the pushers. A drive component that is driven and connected to the bottom of the pushers is installed on the other side of the saddle.

[0007] Preferably, the driving component includes a servo motor fixed to the top of the saddle, a transmission screw is mounted on the output shaft of the servo motor, and a threaded sleeve that is threadedly connected to the transmission screw is mounted on the bottom of the pusher frame.

[0008] Preferably, a protective cover is fixedly connected to the top of the pusher frame, and the chain-type tool magazine mechanism is located inside the protective cover.

[0009] Preferably, sliding guide rails are fixedly connected to both sides of the bottom of the pusher frame, and a limiting slider adapted to the sliding guide rails is fixedly connected to the top surface of the saddle, with the limiting slider located inside the gantry frame.

[0010] Preferably, a positioning guide rail is installed on the top surface of the base below each machine tool spindle, and a worktable is slidably connected to the positioning guide rail.

[0011] Preferably, a protective door is installed on the side of the housing near the machine tool spindle.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, by fixing the chain tool magazine mechanism above the pusher frame, the drive component can obtain a larger stroke space, achieving a larger pushing stroke within a limited space, thereby improving the space utilization of the CNC machine tool. At the same time, the carrier plate, together with the gantry frame, can provide multiple supports for the pusher frame and chain tool magazine mechanism with a large stroke, ensuring the accuracy of tool changing. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 is an exploded view of this utility model;

[0016] Figure 3 is an enlarged view of the structure at point A in Figure 2.

[0017] In the diagram: 1. Base; 101. Positioning guide rail; 102. Platform; 2. Housing; 201. Protective door; 3. Gantry frame; 4. Saddle; 401. Limit slider; 5. Column; 6. Machine tool spindle; 7. Pusher frame; 701. Threaded sleeve; 702. Protective cover; 703. Sliding guide rail; 8. Chain-type tool magazine mechanism; 9. Drive component; 901. Servo motor; 902. Transmission screw. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings, which illustrate several embodiments of the utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Example: Please refer to Figures 1-3 for a CNC machine tool with a chain-type tool magazine. It includes a base 1 and a housing 2 covering the top of the base 1. A gantry 3 and a saddle 4 are fixedly connected to the top of the base 1. Several columns 5 are mounted on one side of the gantry 3, and a machine tool spindle 6 is installed in each column 5. The gantry 3 and the saddle 4 together constitute the main structure of the machine tool. The gantry 3 has several columns 5 mounted on one side, and these columns 5 each have a machine tool spindle 6 installed to drive the cutting tool during machining. The saddle 4 is located on one side... Inside the gantry 3, several pusher frames 7 are slidably mounted on the saddle 4. The top of the pusher frame 7 is fixedly connected to a chain tool magazine mechanism 8 that cooperates with the machine tool spindle 6. On the other side of the saddle 4, a drive unit 9 is installed that is connected to the bottom of the pusher frame 7. By controlling the drive unit 9, the pusher frame 7 slides on the saddle 4, thereby adjusting the position of the chain tool magazine mechanism 8 to complete the corresponding tool changing and retraction operations. Fixing the chain tool magazine mechanism 8 above the pusher frame 7 allows the drive unit 9 to have a larger stroke space, achieving a larger pushing stroke within a limited space.

[0023] In this embodiment, the driving component 9 includes a servo motor 901 fixed to the top of the saddle 4. The output shaft of the servo motor 901 is equipped with a transmission screw 902. The bottom of the pusher 7 is equipped with a threaded sleeve 701 that is threadedly connected to the transmission screw 902. When the servo motor 901 is working, its output shaft will drive the transmission screw 902 to rotate, and then drive the pusher 7 to slide on the saddle 4 along the axial direction of the transmission screw 902 through the threaded connection, thereby moving the chain tool magazine mechanism 8 to below the machine tool spindle 6. After the tool change is completed, the servo motor 901 will work again, driving the pusher 7 and the chain tool magazine mechanism 8 back to their original positions, waiting for the next tool change command.

[0024] In this embodiment, a protective cover 702 is fixedly connected to the top of the pusher 7, and the chain tool magazine mechanism 8 is located inside the protective cover 702. The pusher 7 is a key component connecting the chain tool magazine mechanism 8 and the machine tool. Since the chain tool magazine mechanism 8 is located inside the protective cover 702, this mechanism is used to store and automatically change tools. Adding the protective cover 702 can protect the chain tool magazine mechanism 8 from dust, debris and other debris, while reducing noise and improving the overall working environment of the machine tool.

[0025] In this embodiment, sliding guide rails 703 are fixedly connected to both sides of the bottom of the pusher 7, and limiting sliders 401 adapted to the sliding guide rails 703 are fixedly connected to the top surface of the saddle 4. The limiting sliders 401 are located inside the gantry 3. In order to enhance the sliding stability and accuracy of the pusher 7 on the saddle 4, the sliding guide rails 703 are installed at the bottom of the pusher 7 in this embodiment. At the same time, the limiting sliders 401 adapted to the sliding guide rails 703 are fixedly connected to the top surface of the saddle 4. These limiting sliders 401 are in close cooperation with the sliding guide rails 703 to ensure that the sliding trajectory of the pusher 7 on the saddle 4 is accurate. In addition, the multiple limiting sliders 401 located inside the gantry 3 also play the role of supporting and positioning the pusher 7, so that it can slide stably on the saddle 4, ensuring the compactness and safety of the entire sliding mechanism.

[0026] In this embodiment, a positioning guide rail 101 is installed on the top surface of the base 1 below each machine tool spindle 6. A worktable 102 is slidably connected to the positioning guide rail 101. The worktable 102 slides and adjusts on the positioning guide rail 101 to support the workpiece to be processed at a specific position. The worktable 102 can be adjusted and positioned according to different workpiece sizes and shapes. At the same time, the worktable 102 is also equipped with a precise locking device to ensure that the workpiece can be stably fixed on the worktable 102 during processing, preventing workpiece displacement or damage caused by vibration or impact.

[0027] In this embodiment, a protective door 201 is installed on the side of the housing 2 near the machine tool spindle 6. When the machine tool is performing cutting operations, the protective door 201 remains closed, effectively blocking the splashes of chips, coolant and other materials generated during the cutting process, thus protecting the safety of the operator. When the machine tool needs to be replaced or maintained, the operator can open the protective door 201 and quickly select and replace the tool through the coordinated work of the pusher 7 and the chain tool magazine mechanism 8.

[0028] Working principle: During the machining process, when a tool change is required, the computer control system issues a command to drive the drive component 9 to work, causing the pusher 7 to slide on the saddle 4, moving the chain tool magazine mechanism 8 below the machine tool spindle 6. Then, the tool changing robot of the chain tool magazine mechanism 8 will select the required tool from the tool magazine according to the preset program and send it to the machine tool spindle 6 for installation. After the tool change is completed, the chain tool magazine mechanism 8 will return to its original position, waiting for the next tool change command. In this way, automatic tool changing can be realized, improving machining efficiency and accuracy. Fixing the chain tool magazine mechanism 8 above the pusher 7 allows the drive component 9 to have a larger stroke space, achieving a larger pushing stroke within a limited space.

[0029] 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 CNC machine tool with a chain-type tool magazine, comprising a base (1) and a housing (2) covering the top of the base (1), characterized in that: The base (1) is fixedly connected to the top of the gantry (3) and the saddle (4). Several columns (5) are installed on one side of the gantry (3), and a machine tool spindle (6) is installed in each column (5). One side of the saddle (4) is located inside the gantry (3). Several pushers (7) are slidably installed on the saddle (4). A chain-type tool magazine mechanism (8) that cooperates with the machine tool spindle (6) is fixedly connected to the top of the pusher (7). A drive component (9) that is connected to the bottom of the pusher (7) is installed on the other side of the saddle (4).

2. A CNC machine tool with a chain-type tool magazine according to claim 1, characterized in that: The drive unit (9) includes a servo motor (901) fixed to the top of the saddle (4), the output shaft of the servo motor (901) is equipped with a transmission screw (902), and the bottom of the pusher (7) is equipped with a threaded sleeve (701) that is threadedly connected to the transmission screw (902).

3. A CNC machine tool with a chain-type tool magazine according to claim 1, characterized in that: The top of the pusher (7) is fixedly connected to a protective cover (702), and the chain-type tool magazine mechanism (8) is located inside the protective cover (702).

4. A CNC machine tool with a chain-type tool magazine according to claim 1, characterized in that: The pusher (7) has sliding guide rails (703) fixedly connected to both sides of its bottom. The saddle (4) has a limiting slider (401) that is compatible with the sliding guide rails (703) fixedly connected to its top surface. The limiting slider (401) is located inside the gantry (3).

5. A CNC machine tool with a chain-type tool magazine according to claim 1, characterized in that: The top surface of the base (1) is equipped with a positioning guide rail (101) below each machine tool spindle (6), and a platform (102) is slidably connected on the positioning guide rail (101).

6. A CNC machine tool with a chain-type tool magazine according to claim 1, characterized in that: A protective door (201) is installed on the side of the housing (2) near the machine tool spindle (6).

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