Numerical control tool rest for numerical control machine tool

Abstract

The numerical control tool rest for the numerical control machine tool comprises a tool rest body, the inner surface of the tool rest body is fixedly connected with a transverse partition plate, the end face of the transverse partition plate is connected with a clamp used for fixing a tool, and the upper end of the tool rest body is rotationally connected with an arc-shaped sealing cover. The tool rest comprises a tool rest body, a clamp is arranged in the tool rest body, an arc-shaped sealing cover is arranged in the tool rest body, a movable plate used for controlling the arc-shaped sealing cover to rotate and open is arranged above the tool rest body, and a through groove matched with the clamp is formed in the end face of the movable plate in a penetrating mode. The cutter is protected by arranging the arc-shaped sealing cover, the arc-shaped sealing cover is rotationally connected with the cutter rest body, and the movable plate for controlling the arc-shaped sealing cover to rotate is arranged, so that the main shaft penetrates through the movable plate to be connected with the cutter, and when the main shaft penetrates through the movable plate, the movable plate drives the arc-shaped sealing cover to rotate to achieve opening and closing, and therefore equipment does not need to be provided with a control system; and the reliability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool equipment, in particular to a numerically controlled tool rest for a numerically controlled machine tool. Background Art

[0002] CNC machine tools often need to change tools during the production process. For this reason, some CNC machining centers are often equipped with tool magazines to store a certain number of tools and replace the tools on the spindle through the manipulator. The tool magazine system is a device that provides the tool storage and tool change needs required in the automated machining process. It has an automatic tool change mechanism and can store multiple tools. At present, the tool magazines on the market have strict requirements on the weight and length of tools. The tool magazines that can install special long and heavy tools are also relatively expensive. Moreover, for users who do not use many tools or have special long and heavy tools, the tool magazine has a low cost-effectiveness.

[0003] In an ordinary tool holder, the cutting tool is directly exposed to the outside world when not in use, and comes into contact with air dust, making it easy to be damaged. In addition, the chips and cutting fluid generated in the actual production and processing process splash everywhere, and the flying chips and flying fluid are easy to adhere to the tool handle, which can easily damage the spindle after the spindle grabs the tool.

[0004] The patent number is CN219094450U, and the patent name is A tool holder for CNC machine tools. It discloses a device that controls the opening and closing of a top cover through a telescopic cylinder to protect the tool. However, since the device relies on a telescopic cylinder to drive the opening and closing, it is necessary to use a control system and link it with the machine tool. Once a fault occurs, the top cover will not be opened in time, which will cause serious damage to the device. For this reason, a CNC tool holder for CNC machine tools is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a CNC tool rest for a CNC machine tool to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a CNC tool holder for a CNC machine tool, comprising a tool holder body, the inner surface of the tool holder body is fixedly connected to a transverse partition, the end face of the transverse partition is connected to a clamp for fixing the tool, the upper end of the tool holder body is rotatably connected to an arc-shaped cover, a movable plate for controlling the rotation and opening of the arc-shaped cover is arranged above the tool holder body, and the end face of the movable plate is penetrated by a through groove cooperating with the clamp.

[0007] According to the above technical solution, the clamp is arranged through the end face of the transverse partition, the end face of the clamp is provided with a connecting groove, one side wall of the tool holder body is open, and the side of the connecting groove opening toward the tool holder body is open.

[0008] According to the above technical solution, the inner surfaces on both sides of the connecting groove close to the opening are movably connected with clamping blocks through elastic parts.

[0009] According to the above technical solution, the two opposite sides of the block are respectively in arc shape, and the end of the block corresponding to the opening is arranged in an inclined shape.

[0010] According to the above technical solution, the through slot passes through one side of the movable plate, and the opening direction of the through slot is consistent with the opening direction of the connecting slot.

[0011] According to the above technical solution, the side wall of the tool holder body, the transverse partition and the arc-shaped cover form a closed space.

[0012] According to the above technical solution, movable grooves are provided in the side walls of both sides of the tool holder body, and a connecting plate fixedly connected to the arc-shaped cover is rotatably provided on the inner surface of the movable groove, and a transmission gear coaxially arranged with the rotating axis of the connecting plate is rotatably provided on the outer surface of the tool holder body, and the movable plate is connected to a transmission rack meshing with the transmission gear.

[0013] According to the above technical solution, an elastic element is provided between the transmission gear and the corresponding connecting plate to allow the transmission gear and the connecting plate to rotate relative to each other.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model, by providing a tool holder body, a clamp is installed in the tool holder body through a transverse partition, the tool is fixed by the clamp, and the tool is protected by providing an arc-shaped cover, the arc-shaped cover is rotatably connected to the tool holder body, and a movable plate for controlling the rotation of the arc-shaped cover is provided, so that the main shaft passes through the movable plate to be connected to the tool, and when passing through the movable plate, the movable plate drives the arc-shaped cover to rotate to achieve opening and closing, so the equipment does not need to be provided with a control system, and the reliability is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the main cross-sectional structure of the corresponding transmission gear of the utility model;

[0019] Figure 4 This is a schematic diagram of the card block structure of the utility model;

[0020] In the figure: 1-tool holder body, 2-cross partition, 3-clamp, 4-arc cover, 5-movable plate, 6-through slot, 7-connecting slot, 8-block, 9-movable slot, 10-connecting plate, 11-transmission gear, 12-transmission rack. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The utility model provides a technical solution: a CNC tool holder for a CNC machine tool, comprising a tool holder body 1, such as Figure 1 As shown, the inner surface of the tool holder body 1 is fixedly connected with a transverse partition 2, and the transverse partition 2 is extended along the width direction of the tool holder body 1. The end face of the transverse partition 2 is connected with a clamp 3 for fixing the tool. The tool is vertically installed inside the tool holder body 1 and is fixed to the tool level by the clamp 3. The upper end of the tool holder body 1 is rotatably connected with an arc cover 4. Similarly, the upper ends of the side walls on both sides of the tool holder body are arc-shaped and fit with the surface of the arc cover 4. A movable plate 5 for controlling the rotation and opening of the arc cover 4 is arranged above the tool holder body 1. A through groove 6 cooperating with the clamp 3 is arranged through the end face of the movable plate 5. The spindle passes through the through groove 6 and moves from top to bottom to take the tool. During this process, the larger part of the outer diameter of the spindle contacts the movable plate 5 and controls the movable plate 5 to move downward. During this process, it is necessary to ensure that the spindle does not contact the arc cover 4. The arc cover 4 is opened during this process, and then the spindle can be extended into the tool holder body 1 to connect with the tool.

[0023] Specifically, the clamp 3 is disposed on the end surface of the diaphragm 2, such as Figure 2 As shown, the end face of the clamp 3 is provided with a connecting groove 7, one side wall of the tool holder body 1 is open, and the side of the connecting groove 7 facing the tool holder body 1 is open. When the tool is installed, the spindle moves from top to bottom. After being connected with the tool, the tool can be moved from the opening of the connecting groove 7 to separate from the tool holder body 1 to achieve tool removal. In order to stably connect the tool with the clamp 3, a limiting ring can be installed near the connection between the tool and the spindle, so that the tool can be clamped on the clamp 3 through the limiting ring;

[0024] Specifically, the inner surfaces of both sides of the connecting groove 7 near the opening are movably connected with the clamping blocks 8 through elastic members. Figure 4As shown, the clamping block 8 is arranged on the inner surface of the connecting groove 7, and under the action of the elastic member, it has a tendency to move close to the axial direction of the connecting groove 7, and the outer peripheral surface of the tool is arranged in the annular groove matched with the clamping block 8, so that the tool and the fixture 3 can be fixed by extending the clamping block 8 into the inner surface of the annular groove, and the tool can directly move upward to separate from the clamping block 8, and can also move toward the opening end of the connecting groove 7, and the tool can be taken in various ways;

[0025] Specifically, if Figure 4 As shown, the two opposite surfaces of the clamping block 8 are respectively in an arc shape, so that the clamping block 8 is easy to match with the annular groove of the tool, and the end of the clamping block 8 corresponding to the opening is arranged in an inclined surface shape, which is convenient for the installation of the tool. The tool can be directly installed into the tool holder body 1 from one side of the opening of the tool holder body 1;

[0026] Specifically, the through slot 6 runs through one side of the movable plate 5, and the opening direction of the through slot 6 is consistent with the opening direction of the connecting slot 7. After the spindle is connected to the tool, if the tool needs to be moved out from the opening direction of the connecting slot 7, the spindle can also be separated from the through slot 6, which is convenient for taking the tool.

[0027] Specifically, if Figure 1 As shown, the side wall of the tool holder body 1, the transverse partition 2 and the arc-shaped cover 4 form a closed space, and a strip-shaped cover can be used to fix and connect the opening of the tool holder body 1 to achieve this closed release. This setting method can make the upper end of the tool be inside the closed space, and the protection effect is better. However, it should be noted that with this protection method, the tool cannot be moved out from the opening direction of the connecting groove 7, and the tool can only move up and down to achieve taking or putting the tool;

[0028] Specifically, movable grooves 9 are provided in the side walls of both sides of the tool holder body 1, and a connecting plate 10 fixedly connected to the arc-shaped cover 4 is rotatably provided on the inner surface of the movable groove 9. Under the action of the connecting plate 10, the arc-shaped cover 4 can be rotated relative to the tool holder body 1 to realize opening and closing. A transmission gear 11 coaxially arranged with the rotation axis of the connecting plate 10 is rotatably provided on the outer surface of the tool holder body 1, and the movable plate 5 is connected to a transmission rack 12 meshing with the transmission gear 11. The surface is provided with a wedge-shaped groove extending in the same direction, and the outer wall of the tool holder body 1 is provided with a wedge-shaped block matching the wedge-shaped groove to realize the movable connection between the transmission rack 12 and the tool holder body 1, so that when the movable plate 5 moves downward under the action of the main shaft, the movable plate 5 drives the transmission rack 12 to move, the transmission rack 12 drives the transmission gear 11 to rotate, and the transmission gear 11 drives the arc-shaped cover 4 to flip through the connecting plate 10, and a spring can be provided between the transmission rack 12 and the tool holder body 1, so that the arc-shaped cover 4 can be automatically reset to realize closing;

[0029] Specifically, an elastic element that allows the transmission gear 11 and the corresponding connecting plate 10 to rotate relative to each other is provided between the transmission gear 11 and the corresponding connecting plate 10. Specifically, a circular groove can be coaxially provided in the transmission gear 11, and a rotating column coaxially connected to the connecting plate 10 is rotatably provided inside the circular groove, and a torsion spring is provided between the rotating column and the circular groove. When the movable plate 5 moves, the arc-shaped cover 4 is first turned over by the transmission gear 11. When the arc-shaped cover 4 is fully opened and cannot move further, the spindle continues to move relative to the tool holder body 1. At this time, the transmission gear 11 and the connecting column move relative to each other to ensure that the spindle can be smoothly connected to the tool.

[0030] When the utility model is in use, the tool is fixed on the fixture 3 under the action of the clamping block 8, and the tool is protected by the tool holder body 1 and the arc-shaped cover 4. When the tool needs to be taken out, the main shaft passes through the through slot 6 and moves downward, so that the movable plate 5 drives the transmission rack 12 to move, and the transmission rack 12 drives the connecting plate 10 to rotate through the transmission gear 11, so that the arc-shaped cover 4 rotates and opens, and the main shaft is connected to the tool to achieve the tool taking out.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A CNC tool rest for a CNC machine tool, comprising a tool rest body (1), characterized in that: The inner surface of the tool holder body (1) is fixedly connected to a transverse partition (2), the end surface of the transverse partition (2) is connected to a clamp (3) for fixing the tool, the upper end of the tool holder body (1) is rotatably connected to an arc-shaped cover (4), and a movable plate (5) for controlling the rotation and opening of the arc-shaped cover (4) is arranged above the tool holder body (1), and a through groove (6) matching the clamp (3) is penetrated through the end surface of the movable plate (5).

2. The CNC tool rest for a CNC machine tool according to claim 1, characterized in that: The clamp (3) is arranged through the end surface of the transverse partition (2), and the end surface of the clamp (3) is provided with a connecting groove (7). One side wall of the tool holder body (1) is open, and the side of the connecting groove (7) facing the tool holder body (1) is open.

3. The CNC tool rest for a CNC machine tool according to claim 2, characterized in that: The inner surfaces of both sides of the connection groove (7) close to the opening are movably connected with clamping blocks (8) via elastic parts.

4. The CNC tool rest for a CNC machine tool according to claim 3, characterized in that: The two opposite surfaces of the block (8) are respectively in the shape of arcs, and the end of the block (8) corresponding to the opening is arranged in the shape of an inclined surface.

5. A CNC tool rest for a CNC machine tool according to any one of claims 2 to 4, characterized in that: The through slot (6) passes through one side of the movable plate (5), and the opening direction of the through slot (6) is consistent with the opening direction of the connecting slot (7).

6. The CNC tool rest for a CNC machine tool according to claim 1, characterized in that: The side wall of the tool holder body (1), the transverse partition (2) and the arc-shaped cover (4) form a closed space.

7. A CNC tool rest for a CNC machine tool according to any one of claims 1 to 4 or 6, characterized in that: Movable grooves (9) are provided in the side walls of both sides of the tool holder body (1); a connecting plate (10) fixedly connected to the arc-shaped cover (4) is rotatably provided on the inner surface of the movable groove (9); a transmission gear (11) coaxially arranged with the rotation axis of the connecting plate (10) is rotatably provided on the outer surface of the tool holder body (1); and the movable plate (5) is connected to a transmission rack (12) meshing with the transmission gear (11).

8. The CNC tool rest for a CNC machine tool according to claim 7, characterized in that: An elastic element is provided between the transmission gear (11) and the corresponding connecting plate (10) to allow the transmission gear (11) and the connecting plate (10) to rotate relative to each other.

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