Gantry type five-axis linkage numerical control milling machine collision prevention device

Abstract

This utility model discloses a gantry-type five-axis linkage CNC milling machine anti-collision device, belonging to the technical field of CNC milling machine anti-collision devices. It includes a CNC milling machine body, with a connecting plate on the side wall of the body. Three pairs of mounting holes are symmetrically opened on the connecting plate, and a turntable is provided on the front side of each pair of mounting holes. This gantry-type five-axis linkage CNC milling machine anti-collision device, through the connecting plate and the turntable on the connecting plate, along with screws inside multiple storage holes, allows for quick-drilling of the connecting plate onto the side wall of the CNC milling machine body using self-contained screws. This conveniently and quickly equips the anti-collision structure within the collision trajectory of moving parts for anti-collision monitoring and early warning. A suction box is provided at the bottom, containing a suction cup and an electric telescopic rod, along with a motor and a wiping plate, which can quickly adsorb and connect the anti-collision structure to the mounting surface of the CNC milling machine body that cannot be tapped.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-collision devices for CNC milling machines, and in particular to an anti-collision device for a gantry-type five-axis linkage CNC milling machine. Background Technology

[0002] The gantry-type five-axis linkage CNC milling machine is a high-precision and highly complex machining equipment. Its multi-axis linkage (usually including three linear axes X, Y, and Z and two rotary axes) makes the motion trajectory complex and the risk of collisions (such as between the tool and the workpiece, between the tool and the fixture, between the spindle and the worktable, etc.) is significantly higher than that of ordinary machine tools.

[0003] Collision avoidance devices are safety protection systems specifically designed for this type of equipment. Their core function is to prevent collisions during machine tool processing or operation through real-time monitoring, early warning, and intervention, thereby protecting the equipment, workpieces, cutting tools, and operators, reducing economic losses, and ensuring production continuity. However, most existing collision avoidance devices are fixedly installed in certain parts of CNC milling machines. Different parts of the CNC milling machine have different requirements for their installation methods and procedures. Existing collision avoidance devices cannot be flexibly adjusted according to current needs. Furthermore, the collision avoidance principle of existing devices is mostly based on setting sensors to detect the motion trajectory and issuing an early warning when the movement deviates from the path, without corresponding processing based on different degrees of deviation, resulting in generally poor collision avoidance effects. Utility Model Content

[0004] The purpose of this invention is to provide an anti-collision device for a gantry-type five-axis linkage CNC milling machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gantry-type five-axis linkage CNC milling machine anti-collision device, comprising a CNC milling machine body, a connecting plate provided on the side wall of the CNC milling machine body, three pairs of mounting holes symmetrically opened on the connecting plate, a turntable provided on the front side of each pair of mounting holes, a plurality of storage holes equally spaced on the turntable, screws provided inside the storage holes, an adsorption box fixedly connected to the bottom end of the connecting plate, a plurality of suction cups provided inside the adsorption box, an electric telescopic rod provided on one side of each of the plurality of suction cups, a motor provided between two adjacent suction cups, and a wiping plate fixedly connected to the output end of the motor; A buffer plate is provided on the front side of the adsorption box, and a proximity switch is embedded in the center of the front of the buffer plate. An alarm light is provided on one side of the adsorption box. Multiple compression springs are provided between the adsorption box and the buffer plate. An emergency stop switch is embedded in the center of the front of the adsorption box.

[0006] As a preferred embodiment of this utility model, a rotating shaft is fixedly connected to the center of the turntable, and one end of the rotating shaft is rotatably connected to the front of the connecting plate.

[0007] Through the above technical solution, the turntable can rotate flexibly, aligning different storage holes with the mounting holes.

[0008] As a preferred embodiment of this utility model, rubber rings are fixedly connected to the inner walls of the plurality of storage holes, and the screws are inserted into the inside of the rubber rings.

[0009] Through the above technical solution, the rubber ring is used to engage and hold the screw, so that the screw can be inserted relatively stably and can be flexibly removed when in use.

[0010] As a preferred embodiment of this utility model, one end of the electric telescopic rod is installed on the inner wall of the adsorption box, and a pressure plate is fixedly connected to the output end of the electric telescopic rod. The pressure plate is fixedly connected to the suction cup.

[0011] Through the above technical solution, the electric telescopic rod drives the pressure plate to squeeze the suction cup, which can fully expel the air inside the suction cup and make the adsorption more stable.

[0012] As a preferred embodiment of this utility model, a switch panel is fixedly connected to one side wall of the adsorption box, and multiple control switches are provided on the switch panel. The electric telescopic rod and the motor are electrically connected to an external power source through the multiple control switches.

[0013] With the above technical solution, the switch panel is set on one side wall of the adsorption box, which makes it convenient for the operator to control the operation of the electrical appliances inside the box from the outside.

[0014] As a preferred embodiment of this utility model, the alarm light is electrically connected to an external power supply via a proximity switch and a wire, and the alarm light is installed on the outer wall of the CNC milling machine body.

[0015] With the above technical solution, a certain length of wire is reserved, which allows the alarm light to be flexibly and arbitrarily installed in a conspicuous position to alert the operator.

[0016] As a preferred embodiment of this utility model, one end of the plurality of compression springs is fixedly connected to the side wall of the adsorption box, and the other end of the plurality of compression springs is fixedly connected to the back of the buffer plate.

[0017] Through the above technical solution, the compression spring buffers the impact force of the deviated impact, while providing resistance to bring the impact to a stop without being violent.

[0018] As a preferred embodiment of this utility model, the main body of the CNC milling machine is electrically connected to an external power supply via an emergency stop switch.

[0019] The above technical solution triggers the emergency stop switch only when a hard collision is about to occur at the limit position, thus avoiding damage to the milling machine caused by sudden stops due to slight deviations or frequent emergency stops.

[0020] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting a connecting plate and a turntable on the connecting plate, along with screws inside multiple storage holes, allows the connecting plate to be quickly and easily installed on the side wall of the CNC milling machine body using self-contained screws. This enables the anti-collision structure to be conveniently and quickly placed within the collision trajectory of moving parts for anti-collision monitoring and early warning. The bottom has an adsorption box containing a suction cup, an electric telescopic rod, a motor, and a wiping plate, which can quickly adsorb and connect the anti-collision structure to the mounting surface of the CNC milling machine body where screws cannot be tapped. This dual connection method allows the anti-collision structure to be flexibly and arbitrarily installed at any position according to the collision trajectory of moving parts, meeting the anti-collision detection and protection needs of different moving parts.

[0021] 2. This utility model, by setting a buffer plate on the front side of the adsorption box, in conjunction with multiple compression springs and a proximity switch, can detect slight deviations without contact and provide a warning by using the proximity switch. It provides sufficient reaction time for the initial warning of a collision. The multiple compression springs on the back of the buffer plate can protect and stop the moving parts that continue to deviate by using elastic buffering and generating elastic resistance. The emergency stop switch installed on the adsorption box can control the CNC milling machine to stop within the final limit when a large deviation occurs and a large collision is about to occur, so as to avoid accidents and also avoid losses caused by premature or too frequent shutdowns. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connecting plate of this utility model; Figure 3 This is a schematic diagram of the structure of the adsorption box of this utility model; Figure 4 This is a schematic diagram of the structure of the turntable of this utility model; Figure 5 This is a schematic diagram of the structure of the wiping plate of this utility model.

[0023] In the diagram: 1. CNC milling machine body; 2. Connecting plate; 3. Alarm light; 4. Adsorption box; 5. Mounting hole; 6. Turntable; 7. Screw; 8. Buffer plate; 9. Proximity switch; 10. Compression spring; 11. Wire; 12. Suction cup; 13. Electric telescopic rod; 14. Motor; 15. Wiping plate; 16. Emergency stop switch; 17. Rubber ring. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution for an anti-collision device for a gantry-type five-axis linkage CNC milling machine: Example 1: according to Figure 1 , Figure 2 and Figure 3 , Figure 4 , Figure 5 As shown, a gantry-type five-axis linkage CNC milling machine anti-collision device includes a CNC milling machine body 1. A connecting plate 2 is provided on the side wall of the CNC milling machine body 1. Three pairs of mounting holes 5 are symmetrically opened on the connecting plate 2. A turntable 6 is provided on the front side of each pair of mounting holes 5. Multiple storage holes are equally spaced on the turntable 6. Screws 7 are provided inside the storage holes. An adsorption box 4 is fixedly connected to the bottom end of the connecting plate 2. Multiple suction cups 12 are provided inside the adsorption box 4. An electric telescopic rod 13 is provided on one side of each suction cup 12. A motor 14 is provided between two adjacent suction cups 12. A wiping plate 15 is fixedly connected to the output end of the motor 14.

[0026] A rotating shaft is fixedly connected to the center of the turntable 6. One end of the rotating shaft is rotatably connected to the front of the connecting plate 2. Rubber rings 17 are fixedly connected to the inner walls of multiple storage holes. Screws 7 are inserted into the inside of the rubber rings 17. One end of the electric telescopic rod 13 is installed on the inner wall of the adsorption box 4. A pressure plate is fixedly connected to the output end of the electric telescopic rod 13. The pressure plate is fixedly connected to the suction cup 12. A switch panel is fixedly connected to one side wall of the adsorption box 4. Multiple control switches are provided on the switch panel. The electric telescopic rod 13 and the motor 14 are electrically connected to an external power supply through multiple control switches.

[0027] In practical use, this utility model of a gantry-type five-axis linkage CNC milling machine anti-collision device allows the operator to first determine the specific positions of the moving parts (spindle, tool, worktable, fixture, etc.) of the CNC milling machine body 1, as well as the motion paths where collisions may occur during machining. The anti-collision structure is then installed on the collision path. Specifically, it is first determined whether the installation position is suitable for screw installation. If so, the connecting plate 2 is placed against the mounting surface, and the two turntables 6 are rotated to align one of the storage holes with the mounting hole 5. This aligns the screw 7 inside the storage hole with the mounting hole 5. The screw 7 is then driven in directly using a screwdriver. The screw 7 penetrates the connecting plate 2 and is screwed into the mounting surface, thus stably connecting the connecting plate 2 to the mounting surface. If the mounting surface cannot be screwed, the suction box 4 can be attached to a suitable position. Adjust the multiple control switches on the switch panel to first turn on the motor 14. The motor 14 drives the wiping plate 15 to clean and wipe the mounting surface to remove dust or water stains. Then, adjust the output end of the electric telescopic rod 13 to extend, which drives the pressure plate to squeeze the suction cup 12, causing the air in the suction cup 12 to be expelled. It is then adsorbed onto the mounting surface by atmospheric pressure. In this way, during the anti-collision treatment of various moving parts, the operator can flexibly and arbitrarily install the anti-collision structure at any position of the CNC milling machine body 1, either with or without screws, to meet the collision warning of various moving parts at any position. The device can be flexibly disassembled and adjusted in position, and has a wide range of applications.

[0028] Example 2: Based on Example 1, such as Figure 2 and Figure 3 As shown, a buffer plate 8 is provided on the front side of the adsorption box 4. A proximity switch 9 is embedded in the center of the front of the buffer plate 8. An alarm light 3 is provided on one side of the adsorption box 4. Multiple compression springs 10 are provided between the adsorption box 4 and the buffer plate 8. An emergency stop switch 16 is embedded in the center of the front of the adsorption box 4. The alarm light 3 is electrically connected to an external power supply through the proximity switch 9 and the wire 11. The alarm light 3 is installed on the outer wall of the CNC milling machine body 1. One end of the multiple compression springs 10 is fixedly connected to the side wall of the adsorption box 4, and the other end of the multiple compression springs 10 is fixedly connected to the back of the buffer plate 8. The CNC milling machine body 1 is electrically connected to an external power supply through the emergency stop switch 16.

[0029] In practical use, this utility model's anti-collision device for a gantry-type five-axis linkage CNC milling machine, after the anti-collision structure is installed, has proximity switches 9 facing the direction of movement of each moving part. The monitoring range of these switches is the normal movement limit position of the moving part. When a moving part exceeds its normal movement range, it enters the monitoring range of proximity switch 9, triggering its activation and causing alarm light 3 to flash. At this point, the operator is aware that the moving part has slightly deviated from its normal movement path and needs timely adjustment to avoid direct collision. Proximity switch 9 is used to detect slight deviations without contact as a warning. When the moving part continues to deviate, it directly contacts the buffer plate. 8. The buffer plate 8 is displaced under the action of multiple compression springs 10, which buffers the moving parts. The elasticity of the compression springs 10 generates resistance, forcing them to stop. When the moving parts collide with the buffer plate 8, the buffer plate 8 will generate buffer and resistance to protect and stop the moving parts. When the moving parts continue to move, they continue to move against the spring resistance of the compression springs 10, which means that a large deviation will occur and a large collision will occur. At this time, multiple compression springs 10 will be continuously compressed, so that the buffer plate 8 reaches the displacement limit and squeezes the internal emergency stop switch 16, thereby controlling the entire CNC milling machine body 1 to stop and avoid accidents.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. A collision avoidance device for a gantry-type five-axis linkage CNC milling machine, comprising a CNC milling machine body (1), characterized in that: The main body (1) of the CNC milling machine is provided with a connecting plate (2) on its side wall. Three pairs of mounting holes (5) are symmetrically opened on the connecting plate (2). A turntable (6) is provided on the front side of each pair of mounting holes (5). Multiple storage holes are equally spaced on the turntable (6). Screws (7) are provided inside the storage holes. An adsorption box (4) is fixedly connected to the bottom end of the connecting plate (2). Multiple suction cups (12) are provided inside the adsorption box (4). An electric telescopic rod (13) is provided on one side of each of the multiple suction cups (12). A motor (14) is provided between two adjacent suction cups (12). A wiping plate (15) is fixedly connected to the output end of the motor (14). A buffer plate (8) is provided on the front side of the adsorption box (4). A proximity switch (9) is embedded in the center of the front of the buffer plate (8). An alarm light (3) is provided on one side of the adsorption box (4). Multiple compression springs (10) are provided between the adsorption box (4) and the buffer plate (8). An emergency stop switch (16) is embedded in the center of the front of the adsorption box (4).

2. The anti-collision device for a gantry-type five-axis linkage CNC milling machine according to claim 1, characterized in that: A rotating shaft is fixedly connected to the center of the turntable (6), and one end of the rotating shaft is rotatably connected to the front of the connecting plate (2).

3. The anti-collision device for a gantry-type five-axis linkage CNC milling machine according to claim 1, characterized in that: The inner walls of the multiple storage holes are fixedly connected with rubber rings (17), and the screws (7) are inserted into the inside of the rubber rings (17).

4. The anti-collision device for a gantry-type five-axis linkage CNC milling machine according to claim 1, characterized in that: One end of the electric telescopic rod (13) is installed on the inner wall of the adsorption box (4), and a pressure plate is fixedly connected to the output end of the electric telescopic rod (13). The pressure plate is fixedly connected to the suction cup (12).

5. The anti-collision device for a gantry-type five-axis linkage CNC milling machine according to claim 1, characterized in that: A switch panel is fixedly connected to one side wall of the adsorption box (4). Multiple control switches are provided on the switch panel. The electric telescopic rod (13) and the motor (14) are electrically connected to an external power source through multiple control switches.

6. The anti-collision device for a gantry-type five-axis linkage CNC milling machine according to claim 1, characterized in that: The alarm light (3) is electrically connected to an external power supply via a proximity switch (9) and a wire (11), and the alarm light (3) is installed on the outer wall of the CNC milling machine body (1).

7. The anti-collision device for a gantry-type five-axis linkage CNC milling machine according to claim 1, characterized in that: One end of each of the compression springs (10) is fixedly connected to the side wall of the adsorption box (4), and the other end of each of the compression springs (10) is fixedly connected to the back of the buffer plate (8).

8. The anti-collision device for a gantry-type five-axis linkage CNC milling machine according to claim 1, characterized in that: The main body (1) of the CNC milling machine is electrically connected to an external power supply via an emergency stop switch (16).

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