Double-layer external tool changing device for numerical control machine tool

Abstract

The invention provides a double-layer external tool changing device for a numerical control machine tool, and relates to the technical field of numerical control machine tools. The tool changing storage main bodies are fixedly installed in the numerical control machine tool, the number of the tool changing storage main bodies is two, the two tool changing storage main bodies are arranged together in an up-down mode, five arc-shaped movable drawers are installed on the tool changing storage main bodies in an arrayed mode, and numerical control tools are located in the arc-shaped movable drawers. A movable sliding block is installed in the tool changing storage body, a transmission gear is connected into the movable sliding block, and the transmission gear is connected with the bottom of the arc-shaped movable drawer. When the numerical control tools in the arc-shaped movable drawers need to be used, the transmission gears drive the corresponding arc-shaped movable drawers to move forwards, the numerical control tools located in the arc-shaped movable drawers are convenient to take, the numerical control tools are located in circular spaces formed by the arc-shaped movable drawers and the sliding cavities, and centralized management of the numerical control tools is facilitated. The problems that traditional tools are stored in disorder, and a large amount of time needs to be spent on finding out the tools and installing the tools on a machine tool are solved.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled machine tools, and in particular to a double-layer external tool replacement device for numerically controlled machine tools. Background Art

[0002] CNC machine tools are mechanical equipment that controls the movement and processing of machine tools through digital information. The core of CNC machine tools is the CNC system, which can receive input program instructions and convert them into motion signals of the machine tools, thereby driving mechanical parts to perform precise processing according to the predetermined trajectory; the external tool replacement device for CNC machine tools is a device used to replace tools outside the machine tools, which can improve the automation degree and production efficiency of the machine tools.

[0003] For example, the Chinese patent "CN113664611B A storage device for machine tool tools" includes a box body, a limiting screw is arranged at one end of the box body, a storage mechanism is arranged inside the box body, and the storage mechanism includes a storage component for storing tools, a driving component for driving the storage component to move, a power component for driving the driving component to drive the storage component to move, a limiting top plate, a limiting base and a fifth limiting plate for preventing the limiting base from tilting, a limiting top plate corresponding to the box body is arranged at one end of the limiting base, a storage component is arranged at intervals at the other end of the limiting base, and a driving component corresponding to the storage component is also arranged at the other end of the limiting base; when in use, the linkage cooperation between the multiple components facilitates the user to store and retrieve the tools, making the use of the storage device more user-friendly.

[0004] At present, after completing the tool processing, operators usually directly remove the tool from the machine tool and store it in a storage box. When the tool is needed, it is necessary to find the tool to be used from the various tools in the storage box. Since the tool storage is messy and it is difficult to find, it takes a lot of time to find the tool and install it on the machine tool, which is very troublesome and the use effect is poor, affecting the efficiency of CNC processing. Summary of the invention

[0005] The present invention relates to a double-layer external tool replacement device for a CNC machine tool. When a CNC tool inside an arc-shaped movable drawer needs to be used, a transmission gear rotates, and the transmission gear drives the arc-shaped movable drawer to move forward, so that the CNC tool inside the arc-shaped movable drawer can be taken out. After the CNC tool is used, the transmission gear drives the arc-shaped movable drawer to move backward, so that the CNC tool is in a circular space formed by the arc-shaped movable drawer and a sliding cavity, so that the CNC tool can be centrally managed.

[0006] In a first aspect of the present disclosure, a double-layer external tool changing device for a numerically controlled machine tool is provided, which specifically comprises: a tool changing storage body, an arc-shaped movable drawer, a movable slide block, a transmission gear, a No. 1 motor, a transmission screw, a No. 2 motor, a spline shaft and a long bolt; the tool changing storage body is fixedly installed inside the numerically controlled machine tool, two tool changing storage bodies are provided, the two tool changing storage bodies are arranged together up and down, and the tool changing storage body is arranged with five arc-shaped movable drawers, and the numerically controlled tool is located in the arc-shaped movable drawer; the movable slide block is installed inside the tool changing storage body, and the movable slide block is provided inside the movable slide block. The tool changing storage body is connected with a transmission gear, and the transmission gear is connected to the bottom of the arc-shaped movable drawer; a No. 1 motor is fixedly installed on the outside of the tool changing storage body, and a transmission screw is installed inside the tool changing storage body, the driving shaft of the No. 1 motor is connected to the transmission screw, and the transmission screw is connected to the movable slider; a No. 2 motor is fixedly installed on the outside of the tool changing storage body, and a spline shaft is installed inside the tool changing storage body, the driving shaft of the No. 2 motor is connected to the spline shaft, and the spline shaft is connected to the transmission gear; a long bolt is connected to the rear of the tool changing storage body, and the long bolt is connected to the upper and lower tool changing storage bodies.

[0007] Furthermore, five sliding cavities are arranged in an array inside the tool changing storage body, the arc-shaped movable drawer is slidably connected to the sliding cavity provided in the tool changing storage body, the arc-shaped movable drawer and the sliding cavity form a circular space, and the CNC tool is located in the circular space.

[0008] Furthermore, the transmission gear is rotatably connected to the movable slider, a rack is provided at the bottom of the arc-shaped movable drawer, and the transmission gear is alternately meshed and connected with the rack provided on the arc-shaped movable drawer.

[0009] Furthermore, a guide hole is provided inside the tool changing storage body, and a positioning rod is provided at the tail of the arc-shaped movable drawer. The positioning rod slides through the guide hole provided in the tool changing storage body. When the CNC tool inside the arc-shaped movable drawer needs to be used, the transmission gear rotates, and the transmission gear drives the arc-shaped movable drawer to move forward, which is convenient for taking the CNC tool located inside the arc-shaped movable drawer. After the CNC tool is used, the transmission gear drives the arc-shaped movable drawer to move backward, so that the CNC tool is in the circular space formed by the arc-shaped movable drawer and the sliding cavity.

[0010] Furthermore, a guide rod is provided inside the tool changing storage body, a sliding hole is provided inside the movable slider, and the guide rod slides through the sliding hole provided in the movable slider.

[0011] Furthermore, the transmission screw is rotatably connected to the tool changing storage body, and a threaded hole is provided inside the movable slider. The transmission screw is threadedly connected to the threaded hole provided on the movable slider. When different types of CNC tools are needed, the No. 1 motor drives the transmission screw to rotate, and the transmission screw drives the movable slider to move left and right along the guide rod for adjustment, thereby changing the position of the transmission gear, so that the transmission gear can be meshed and connected with the racks provided on the five arc-shaped movable drawers in turn, driving the corresponding arc-shaped movable drawers to move back and forth to obtain different types of CNC tools.

[0012] Furthermore, a spline hole is provided inside the transmission gear, and the spline shaft is rotatably connected to the tool changing storage body. The spline shaft slides through the spline hole provided in the transmission gear. During the left and right movement adjustment of the transmission gear, the transmission gear slides outside the spline shaft. After the transmission gear is adjusted, the No. 2 motor drives the spline shaft to rotate, and the spline shaft drives the transmission gear to rotate, thereby realizing the forward and backward movement of the arc-shaped movable drawer.

[0013] Furthermore, a U-shaped groove is provided at the front end of the tool changing storage body at the bottom, and a clamping block is provided at the front end of the tool changing storage body at the top, and the clamping block is slidably connected to the U-shaped groove provided in the tool changing storage body.

[0014] Furthermore, the rear end of the tool changing storage body located at the bottom is provided with an external connecting hole, and the rear end of the tool changing storage body located at the top is provided with an internal connecting hole, the internal connecting hole is connected to the external connecting hole, and a long bolt penetrates and is connected to the internal connecting hole and the external connecting hole in a connected state. When the card block is slidably connected in the U-shaped groove, the internal connecting hole and the external connecting hole are in a connected state, and the long bolt is connected to the internal connecting hole and the external connecting hole, and the upper and lower rear end connecting parts of the tool changing storage body are fixed by the long bolt.

[0015] The present invention provides a double-layer external tool replacement device for a CNC machine tool, which has the following beneficial effects:

[0016] When the present invention is in use, the moving distance of the arc movable drawer is limited by sliding cooperation between the positioning rod and the guide hole. When the numerical control tool inside the arc movable drawer needs to be used, the transmission gear rotates, and the transmission gear drives the arc movable drawer to move forward, which is convenient for taking the numerical control tool inside the arc movable drawer. After the numerical control tool is used, the transmission gear drives the arc movable drawer to move backward, so that the numerical control tool is in the circular space formed by the arc movable drawer and the sliding cavity, which is convenient for centralized management of the numerical control tools.

[0017] In addition, the guide rod and the sliding hole slide together to guide the movement of the movable slider. When different types of CNC tools are needed, the No. 1 motor drives the transmission screw to rotate, and the transmission screw drives the movable slider to move left and right along the guide rod for adjustment, thereby changing the position of the transmission gear, so that the transmission gear can be meshed and connected with the racks provided on the five arc-shaped movable drawers in turn, driving the corresponding arc-shaped movable drawers to move back and forth to obtain different types of CNC tools, making the operation easier. During the left and right movement and adjustment of the transmission gear, the transmission gear slides on the outside of the spline shaft. After the transmission gear is adjusted, the No. 2 motor drives the spline shaft to rotate, and the spline shaft drives the transmission gear to rotate, thereby realizing the forward and backward movement of the arc-shaped movable drawer.

[0018] In addition, when the card block is slidably connected in the U-shaped groove, the inner connecting hole and the outer connecting hole are in a connected state, and the long bolts are connected to the inner connecting hole and the outer connecting hole. The rear end connecting parts of the upper and lower tool changing storage bodies are fixed by the long bolts, making the assembly and fixation of the upper and lower tool changing storage bodies easier and faster.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0021] The accompanying drawings described below are only related to some embodiments of the present invention, and are not intended to limit the present invention. In the accompanying drawings:

[0022] Figure 1 The overall front axle side structure schematic diagram of the present application is shown;

[0023] Figure 2 The overall rear axle side structure schematic diagram of the present application is shown;

[0024] Figure 3 The schematic diagram of the split structure of the upper and lower tool change storage bodies of the present application is shown;

[0025] Figure 4 A schematic diagram of the top shaft side structure of one of the tool change storage bodies of the present application is shown;

[0026] Figure 5 Another schematic diagram of the bottom shaft side structure of the tool changing storage body of the present application is shown;

[0027] Figure 6 A schematic diagram of the cut-away installation structure of the internal arc-shaped movable drawer and movable slider of the tool change storage body of the present application is shown;

[0028] Figure 7A schematic diagram of the internal cross-section structure of the tool change storage body of the present application is shown;

[0029] Figure 8 The schematic diagram of the axial side structure of the arc-shaped movable drawer of the present application is shown;

[0030] Fig. 9 A schematic diagram of the connection structure of the movable slider, transmission gear, transmission screw and spline shaft of the present application is shown;

[0031] Fig.10 A schematic diagram of the shaft side structure of the movable slider of the present application is shown.

[0032] List of reference numerals: 1. Tool changing storage body; 101. Sliding cavity; 102. Guide hole; 103. Guide rod; 104. U-shaped groove; 105. Block; 106. External connection hole; 107. Internal connection hole; 2. Arc-shaped movable drawer; 201. Rack; 202. Positioning rod; 3. Movable slider; 301. Sliding hole; 302. Threaded hole; 4. Transmission gear; 401. Spline hole; 5. Motor No. 1; 6. Transmission screw; 7. Motor No. 2; 8. Spline shaft; 9. Long bolt. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1 to 10 :

[0035] The present invention proposes a double-layer external tool changing device for a numerically controlled machine tool, comprising: a tool changing storage body 1, an arc-shaped movable drawer 2, a movable slide block 3, a transmission gear 4, a No. 1 motor 5, a transmission screw 6, a No. 2 motor 7, a spline shaft 8 and a long bolt 9; the tool changing storage body 1 is fixedly installed inside the numerically controlled machine tool, and two tool changing storage bodies 1 are provided, and the two tool changing storage bodies 1 are arranged together up and down, and the tool changing storage body 1 is arranged with five arc-shaped movable drawers 2, and the numerically controlled tool is located in the arc-shaped movable drawer 2; a movable slide block 3 is installed inside the tool changing storage body 1, and a transmission gear 4 is connected inside the movable slide block 3, and the transmission gear 4 is connected to the bottom of the arc-shaped movable drawer 2; a No. 1 motor 5 is fixedly installed outside the tool changing storage body 1, and a transmission screw 6 is installed inside the tool changing storage body 1, and the driving shaft of the No. 1 motor 5 is connected to the transmission screw 6, and the transmission screw 6 is connected to the movable slide block 3; No. 2 motor 7, a spline shaft 8 is installed inside the tool change storage body 1, the drive shaft of the No. 2 motor 7 is connected to the spline shaft 8, and the spline shaft 8 is connected to the transmission gear 4; a long bolt 9 is connected to the rear of the tool change storage body 1, and the long bolt 9 is connected to the upper and lower tool change storage bodies 1; five sliding cavities 101 are arranged in an array inside the tool change storage body 1, and the arc-shaped movable drawer 2 is slidably connected to the sliding cavity 101 provided in the tool change storage body 1, and the arc-shaped movable drawer 2 and the sliding cavity 101 form a circular space, and the CNC tool is located in the circular space; the transmission gear 4 is rotatably connected to the movable slider 3, and a rack 201 is provided at the bottom of the arc-shaped movable drawer 2, and the transmission gear 4 is alternately meshed with the rack 201 provided in the arc-shaped movable drawer 2; a guide hole 102 is provided inside the tool change storage body 1, and a positioning rod 202 is provided at the tail of the arc-shaped movable drawer 2, and the positioning rod 202 slides through the guide hole 102 provided in the tool change storage body 1;

[0036] By adopting the above technical solution, the moving distance of the arc movable drawer 2 is limited by the sliding cooperation between the positioning rod 202 and the guide hole 102. When the CNC tool inside the arc movable drawer 2 needs to be used, the transmission gear 4 rotates, and the transmission gear 4 drives the arc movable drawer 2 to move forward, which is convenient for taking the CNC tool inside the arc movable drawer 2. After the CNC tool is used, the transmission gear 4 drives the arc movable drawer 2 to move backward, so that the CNC tool is in the circular space formed by the arc movable drawer 2 and the sliding cavity 101, which is convenient for centralized management of CNC tools.

[0037] In the embodiment of the present disclosure, a guide rod 103 is provided inside the tool change storage body 1, a sliding hole 301 is provided inside the movable slider 3, the guide rod 103 slides through the sliding hole 301 provided on the movable slider 3, the transmission screw 6 is rotatably connected to the tool change storage body 1, a threaded hole 302 is provided inside the movable slider 3, and the transmission screw 6 is threadedly connected to the threaded hole 302 provided on the movable slider 3;

[0038] By adopting the above technical solution, the guide rod 103 and the sliding hole 301 are slidably matched to guide the movement of the movable slider 3. When different types of CNC tools are needed, the No. 1 motor 5 drives the transmission screw 6 to rotate, and the transmission screw 6 drives the movable slider 3 to move left and right along the guide rod 103 to change the position of the transmission gear 4, so that the transmission gear 4 can be meshed and connected with the racks 201 provided in the five arc-shaped movable drawers 2 in turn, driving the corresponding arc-shaped movable drawers 2 to move back and forth, so as to obtain different types of CNC tools, and the operation is easier.

[0039] In the disclosed embodiment, a spline hole 401 is provided inside the transmission gear 4, the spline shaft 8 is rotatably connected to the tool change storage body 1, and the spline shaft 8 slides through the spline hole 401 provided in the transmission gear 4;

[0040] By adopting the above technical solution, during the left and right movement adjustment of the transmission gear 4, the transmission gear 4 slides outside the spline shaft 8. After the transmission gear 4 is adjusted, the second motor 7 drives the spline shaft 8 to rotate, and the spline shaft 8 drives the transmission gear 4 to rotate, thereby realizing the forward and backward movement of the arc-shaped movable drawer 2.

[0041] Embodiment 2, on the basis of embodiment 1, a U-shaped groove 104 is provided at the front end of the tool change storage body 1 at the bottom, a block 105 is provided at the front end of the tool change storage body 1 at the top, the block 105 is slidably connected in the U-shaped groove 104 provided in the tool change storage body 1, an external connection hole 106 is provided at the rear end of the tool change storage body 1 at the bottom, an internal connection hole 107 is provided at the rear end of the tool change storage body 1 at the top, the internal connection hole 107 is connected with the external connection hole 106, and the long bolt 9 is connected through the internal connection hole 107 and the external connection hole 106 in a connected state;

[0042] By adopting the above technical solution, when the block 105 is slidably connected in the U-shaped groove 104, the inner connecting hole 107 and the outer connecting hole 106 are in a connected state, and the long bolt 9 is connected to the inner connecting hole 107 and the outer connecting hole 106, and the rear end connecting parts of the upper and lower tool changing storage bodies 1 are fixed by the long bolt 9, making the assembly and fixation of the upper and lower tool changing storage bodies 1 easier and faster.

[0043] The working principle of this embodiment is as follows: the moving distance of the arc-shaped movable drawer 2 is limited by the sliding cooperation between the positioning rod 202 and the guide hole 102, and the moving guide effect of the movable slider 3 is achieved by the sliding cooperation between the guide rod 103 and the slide hole 301; when different types of CNC tools need to be used, the No. 1 motor 5 drives the transmission screw 6 to rotate, and the transmission screw 6 drives the movable slider 3 to move left and right along the guide rod 103 to change the position of the transmission gear 4, so that the transmission gear 4 can mesh with the racks 201 provided on the five arc-shaped movable drawers 2 in turn. Connection; during the left and right movement and adjustment process of the transmission gear 4, the transmission gear 4 slides outside the spline shaft 8. After the adjustment of the transmission gear 4 is completed, the No. 2 motor 7 drives the spline shaft 8 to rotate, and the spline shaft 8 drives the transmission gear 4 to rotate. The transmission gear 4 drives the arc-shaped movable drawer 2 to move forward, which is convenient for taking the CNC tool located inside the arc-shaped movable drawer 2. After the CNC tool is used, the transmission gear 4 drives the arc-shaped movable drawer 2 to move backward, so that the CNC tool is in the circular space formed by the arc-shaped movable drawer 2 and the sliding cavity 101, which is convenient for centralized management of CNC tools.

[0044] In this article, there are a few points to note:

[0045] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0046] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0047] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A double-layer external tool replacement device for a CNC machine tool, comprising: A tool change storage body (1), an arc-shaped movable drawer (2), a movable slide block (3), a transmission gear (4), a No. 1 motor (5), a transmission screw rod (6), a No. 2 motor (7), a spline shaft (8) and a long bolt (9); characterized in that the tool change storage body (1) is fixedly installed inside a CNC machine tool, two tool change storage bodies (1) are provided, the two tool change storage bodies (1) are arranged together up and down, and the tool change storage body (1) is equipped with five arc-shaped movable drawers (2) in an arranged manner, and the CNC tool is located in the arc-shaped movable drawer (2); a movable slide block (3) is installed inside the tool change storage body (1), and a transmission gear (4) is connected to the movable slide block (3), and the transmission gear (4) is connected to the movable slide block (3). The tool change storage body (1) is connected to the bottom of the arc-shaped movable drawer (2); a first motor (5) is fixedly installed on the outside of the tool change storage body (1), a transmission screw (6) is installed inside the tool change storage body (1), the drive shaft of the first motor (5) is connected to the transmission screw (6), and the transmission screw (6) is connected to the movable slider (3); a second motor (7) is fixedly installed on the outside of the tool change storage body (1), a spline shaft (8) is installed inside the tool change storage body (1), the drive shaft of the second motor (7) is connected to the spline shaft (8), and the spline shaft (8) is connected to the transmission gear (4); a long bolt (9) is connected to the rear of the tool change storage body (1), and the long bolt (9) is connected to the upper and lower tool change storage bodies (1).

2. A double-layer external tool replacement device for a CNC machine tool according to claim 1, characterized in that: Five sliding cavities (101) are arranged in an array inside the tool changing storage body (1); the arc-shaped movable drawer (2) is slidably connected to the sliding cavity (101) provided in the tool changing storage body (1); the arc-shaped movable drawer (2) and the sliding cavity (101) form a circular space; and the numerical control tool is located in the circular space.

3. A double-layer external tool replacement device for a CNC machine tool according to claim 1, characterized in that: The transmission gear (4) is rotatably connected to the movable slide block (3); a rack (201) is provided at the bottom of the arc-shaped movable drawer (2); and the transmission gear (4) is alternately meshed with the rack (201) provided on the arc-shaped movable drawer (2).

4. A double-layer external tool replacement device for a CNC machine tool according to claim 1, characterized in that: A guide hole (102) is provided inside the tool change storage body (1), and a positioning rod (202) is provided at the tail of the arc-shaped movable drawer (2), and the positioning rod (202) slides through the guide hole (102) provided in the tool change storage body (1).

5. A double-layer external tool replacement device for a CNC machine tool according to claim 1, characterized in that: A guide rod (103) is provided inside the tool changing storage body (1), a sliding hole (301) is provided inside the movable slider (3), and the guide rod (103) slides through the sliding hole (301) provided on the movable slider (3).

6. A double-layer external tool replacement device for a CNC machine tool according to claim 1, characterized in that: The transmission screw (6) is rotatably connected to the tool changing storage body (1); a threaded hole (302) is provided inside the movable slider (3); and the transmission screw (6) is threadably connected to the threaded hole (302) provided in the movable slider (3).

7. A double-layer external tool replacement device for a CNC machine tool according to claim 1, characterized in that: A spline hole (401) is provided inside the transmission gear (4), the spline shaft (8) is rotationally connected to the tool change storage body (1), and the spline shaft (8) slides through the spline hole (401) provided in the transmission gear (4).

8. The double-layer external tool replacement device for a CNC machine tool according to claim 1, characterized in that: The front end of the tool changing storage body (1) located at the bottom is provided with a U-shaped groove (104), and the front end of the tool changing storage body (1) located at the top is provided with a clamping block (105), and the clamping block (105) is slidably connected in the U-shaped groove (104) provided in the tool changing storage body (1).

9. A double-layer external tool replacement device for a CNC machine tool according to claim 1, characterized in that: The rear end of the tool change storage body (1) located at the bottom is provided with an external connection hole (106), and the rear end of the tool change storage body (1) located at the top is provided with an internal connection hole (107), the internal connection hole (107) is connected to the external connection hole (106), and the long bolt (9) penetrates and connects the internal connection hole (107) and the external connection hole (106) in a connected state.

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