A machine tool protective door

Abstract

This utility model relates to the field of machine tool protective door technology, and in particular to a machine tool protective door, including a door body with an observation window fixedly installed in the middle of the door body. The cleaning components include a rubber wiping block, a scraper, a linkage frame, and a control screw. The linkage frame is installed on one side of the rubber wiping block, and connecting rods are fixedly provided on both sides of the linkage frame. A round rod is fixedly installed between the connecting rods. The scraper is sleeved on the round rod, and a return torsion spring is provided on the round rod. The control screw is located on both sides of the linkage frame, and a drive motor is connected to the lower part of the control screw. A transmission chain is provided between the control screws, and the transmission chain is located on the top of the control screw. A synchronous sprocket is fixed on the top of the control screw near the transmission chain. After rotating the control screw, the linkage frame, the rubber wiping block, and the scraper move up and down. When moving, the scraper scrapes off large iron filings that have penetrated, and the scraped iron filings fall off the observation window along the inclined surface of the scraper. The rubber wiping block cleans the coolant on the observation window.

Description

Technical Field

[0001] This utility model relates to the field of machine tool protective door technology, and in particular to a machine tool protective door. Background Technology

[0002] A CNC machine tool (Computer Numerical Control Machine Tool) is an automated machine tool equipped with a program control system. This control system logically processes programs with control codes or other symbolic instructions, decodes them, represents them with coded numbers, and inputs them into the CNC device via an information carrier. After processing, the CNC device sends various control signals to control the machine tool's movements, automatically machining parts according to the shape and dimensions required by the drawings. It can efficiently and accurately complete machining tasks such as cutting, carving, and drilling of materials such as metal, plastic, and wood.

[0003] Machine tool safety doors are an important component of CNC machine tools. They are mainly used to protect the safety of operators, isolate the chips and coolant generated during processing, and also reduce noise and dust diffusion. Machine tool safety doors are also a crucial aspect that needs attention during processing. Before processing, the safety doors must be closed to prevent production accidents.

[0004] During rough machining of parts, the cutting tool tip heats up, requiring continuous spraying of coolant. This causes large metal chips, along with the coolant, to easily splash onto the observation window, blurring its visibility. Furthermore, the metal chips can easily embed themselves into the acrylic observation window, affecting its clarity. Existing machine tool safety doors only use simple wiping plates to remove coolant from the observation window, failing to effectively clean the embedded metal chips. Therefore, the inventors have proposed a machine tool safety door to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this utility model is achieved through the following method: A machine tool protective door includes a door body, an observation window fixedly installed in the middle of the door body, the wall surface of the observation window being flush with the wall surface of the door body, a cleaning component installed on one side of the door body near the observation window, the cleaning component including a rubber wiping block, a scraper, a linkage frame, and a control screw, the rubber wiping block being positioned with its contact surface facing the observation window on one side of the observation window, and the contact surface of the rubber wiping block being in contact with the observation window, the linkage frame being installed on the side of the rubber wiping block away from the observation window, connecting rods being fixedly provided at the upper and lower ends of both sides of the linkage frame, a round rod being fixedly installed between the connecting rods, and the scraper being movably sleeved on the round rod. On the outer cylindrical surface, a return torsion spring is pre-torsively fitted on the round rod near the side wall of the scraper. The two ends of the return torsion spring are fixedly connected to the side wall of the scraper and the wall of the connecting rod near the round rod, respectively. The scraper edge is close to the wall of the observation window. The control screw is rotatably mounted on both sides of the linkage frame. The middle of both sides of the linkage frame is threadedly engaged with the control screw through a linkage block. A drive motor is connected below the control screw on one side of the linkage frame. A transmission chain is provided between the control screws. The transmission chain is located at the top of the control screw. A perfectly identical synchronous sprocket is fixedly mounted on the top of the control screw near the transmission chain. The synchronous sprocket is engaged with the transmission chain.

[0006] In a further embodiment of the above description, each control screw is provided with a fixing plate at its bottom. The top surface of the fixing plate is rotatably connected to the control screw near its position. The output shaft of the drive motor passes through the fixing plate and is fixedly connected to the bottom of the control screw. A mounting plate is provided at the lower end of the door near the drive motor. The mounting plate is fixedly connected to the door, and the top surface of the mounting plate is fixedly connected to the drive motor. The mounting plate is used to provide a connection between the control screw and the door, and at the same time, to limit the movement of the control screw.

[0007] In a further embodiment of the above description, a connecting seat is provided at the top of the door body near the control screw. The two ends of the connecting seat extend toward the control screw, and the control screws on both sides can be rotatably connected to the two ends of the connecting seat. The connecting seat is located below the synchronous sprocket. The connecting seat is used to provide a rotatable and movement-limiting effect for the upper end of the control screw.

[0008] In the above description, as a further embodiment, the bottom surface of the connecting seat is provided with a limiting block, the bottom surface of the limiting block extends toward the observation window, and the middle part of the limiting block near the control screw is provided with a light hole that matches the control screw; the limiting block is used to limit the maximum rising height of the linkage block.

[0009] In a further embodiment of the above description, a protective cover is fixedly installed on the top of the door body near the connecting seat. The bottom of the protective cover has a receiving space, and the lower end of the protective cover is fixedly connected to the side wall of the connecting seat. The protective cover serves to separate and protect the transmission chain and the synchronous sprocket, preventing iron filings and cutting fluid from affecting its use.

[0010] In a further embodiment of the above description, a protective frame is provided in the middle of the door body near the control screw. The protective frame has an opening on the side near the linkage frame that matches the linkage block. The top of the protective frame extends towards the upper end of the control screw, and the bottom of the protective frame extends towards the lower end of the control screw. Both the top and bottom of the protective frame have clearance holes. The protective frame protects the control screw.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a rubber rubbing block, scraper, linkage frame and control screw, and by pre-torsional sleeved on the round rod near the side wall of the scraper, a reset torsion spring is installed. The pre-torsional installation of the reset torsion spring ensures that the scraper edge is always in contact with the wall of the observation window. Then, through the threaded engagement of the control screw and the linkage block, the control screw is rotated. Through the engagement with the linkage block, as well as the synchronous sprocket and transmission chain, the control screws on both sides are driven to rotate synchronously in the same direction. This drives the linkage frame, rubber rubbing block and scraper to move up and down. The scraper edge is pressed against the wall of the observation window, thus scraping off large iron filings during movement. The scraped iron filings fall off the observation window along the inclined surface of the scraper, while the rubber rubbing block cleans the coolant on the observation window. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of a machine tool protective door according to this utility model;

[0013] Figure 2 This is a three-dimensional structural schematic diagram of a machine tool protective door from another perspective of this utility model;

[0014] Figure 3 This is a schematic diagram of the independent structure of the cleaning component in a machine tool protective door according to this utility model;

[0015] Figure 4 This is a schematic diagram of the independent structure of the cleaning component in a machine tool protective door from another perspective of this utility model;

[0016] Figure 5 This is an exploded structural diagram of the cleaning component in a machine tool protective door according to this utility model;

[0017] Figure 6 This is an exploded structural diagram of the cleaning component in a machine tool protective door according to another perspective of the present invention.

[0018] Figure 7 This is a cross-sectional view of a machine tool protective door according to this utility model;

[0019] Figure 8 This is a utility model Figure 5 A partially enlarged schematic diagram of structure A in the middle;

[0020] Figure 9 This is a utility model Figure 5 A partially enlarged schematic diagram of structure B in the middle;

[0021] In the diagram: 1-Door body, 2-Observation window, 3-Rubber wiping block, 4-Scraper, 5-Linkage frame, 6-Control screw;

[0022] 7-Connecting rod, 8-Round rod, 9-Reset torsion spring, 10-Linkage block, 11-Drive motor, 12-Transmission chain;

[0023] 13-Synchronous sprocket, 14-Fixing plate, 15-Mounting plate, 16-Connecting seat, 17-Limiting block, 18-Smooth hole;

[0024] 19-Protective cover, 20-Accommodation space, 21-Protective frame, 22-Opening, 23-Avoidance hole. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] For this embodiment, please refer to Figures 1-9The specific implementation of this machine tool protective door includes a door body 1. An observation window 2 is fixedly installed in the middle of the door body 1, with the wall surface of the observation window 2 flush with the wall surface of the door body 1. A cleaning assembly is installed on one side of the door body 1 near the observation window 2. The cleaning assembly includes a rubber wiping block 3, a scraper 4, a linkage frame 5, and a control screw 6. The rubber wiping block 3 is positioned on one side of the observation window 2 with its contact surface facing it, and the contact surface of the rubber wiping block 3 is in contact with the observation window 2. The linkage frame 5 is installed on the side of the rubber wiping block 3 away from the observation window 2. Connecting rods 7 are fixedly installed at the upper and lower ends of both sides of the linkage frame 5. A round rod 8 is fixedly installed between the connecting rods 7. The scraper 4 is movably sleeved on the outer cylindrical surface of the round rod 8. A return torsion spring 9 is pre-torsional sleeved near the side wall of the scraper 4. The two ends of the return torsion spring 9 are fixedly connected to the side wall of the scraper 4 and the wall of the connecting rod 7 near the round rod 8, respectively. The scraper edge of the scraper 4 is close to the wall of the observation window 2. The control screw 6 is rotatably mounted on both sides of the linkage frame 5. The middle of both sides of the linkage frame 5 is threadedly engaged with the control screw 6 through the linkage block 10. A drive motor 11 is connected below the control screw 6 on one side of the linkage frame 5. A transmission chain 12 is provided between the control screws 6. The transmission chain 12 is located on the top of the control screw 6. A completely identical synchronous sprocket 13 is fixedly mounted on the top of the control screw 6 near the transmission chain 12. The synchronous sprocket 13 cooperates with the transmission chain 12.

[0027] Each control screw 6 has a fixing plate 14 at its bottom. The top surface of the fixing plate 14 is rotatably connected to the control screw 6 near the control screw 6. The output shaft of the drive motor 11 passes through the fixing plate 14 and is fixedly connected to the bottom of the control screw 6. The lower end of the door body 1 is provided with a mounting plate 15 near the drive motor 11. The mounting plate 15 is fixedly connected to the door body 1, and the top surface of the mounting plate 15 is fixedly connected to the drive motor 11.

[0028] A connecting seat 16 is provided at the top of the door body 1 near the control screw 6. Both ends of the connecting seat 16 extend toward the control screw 6. Both sides of the control screw 6 can be rotatably connected to the two ends of the connecting seat 16. The connecting seat 16 is located below the synchronous sprocket 13.

[0029] The bottom surface of the connecting seat 16 is provided with a limiting block 17, the bottom surface of the limiting block 17 extends toward the observation window 2, and the middle part of the limiting block 17 near the control screw 6 is provided with a light hole 18 that matches the control screw 6.

[0030] A protective cover 19 is fixedly installed on the top of the door body 1 near the upper part of the connecting seat 16. The bottom of the protective cover 19 is provided with a receiving space 20. The lower end of the protective cover 19 is fixedly connected to the side wall of the connecting seat 16.

[0031] A protective frame 21 is provided in the middle of the door body 1 near the control screw 6. The protective frame 21 has an opening 22 that matches the linkage block 10 on the side near the linkage frame 5. The top of the protective frame 21 extends toward the upper end of the control screw 6, and the bottom of the protective frame 21 extends toward the lower end of the control screw 6. Both the top and bottom of the protective frame 21 are provided with clearance holes 23.

[0032] The working process of this utility model is as follows: the drive motor 11 is turned on, and the drive motor 11 drives the control screw 6 on one side to rotate. While the control screw 6 on one side is rotating, the transmission chain 12 and the synchronous sprocket 13 that cooperate at the top drive the control screw 6 on the other side to rotate synchronously in the same direction. Then, through the threaded cooperation with the linkage block 10, the linkage block 10 drives the linkage frame 5 to move up and down.

[0033] When the linkage frame 5 moves, it drives the rubber rubbing block 3 to move, and through the connecting rod 7 and the round rod 8, it drives the scraper 4 to move synchronously. At the same time, through the pre-twisted reset torsion spring 9, it ensures that the scraper edge of the scraper 4 is always in close contact with the side wall of the observation window 2.

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A machine tool protection door comprising a door body, a viewing window is fixedly installed in the middle of the door body, the wall surface of the viewing window is flush with the wall surface of the door body, characterized in that: A cleaning assembly is installed on one side of the door near the observation window. The cleaning assembly includes a rubber wiping block, a scraper, a linkage frame, and a control screw. The rubber wiping block is positioned on one side of the observation window with its contact surface facing the window, and the contact surface of the rubber wiping block is in contact with the observation window. The linkage frame is installed on the side of the rubber wiping block away from the observation window. Connecting rods are fixedly installed at the upper and lower ends of both sides of the linkage frame. A round rod is fixedly installed between the connecting rods. The scraper is movably sleeved on the outer cylindrical surface of the round rod. A return torsion spring is pre-torsively sleeved on the round rod near the side wall of the scraper. The two ends of the reset torsion spring are fixedly connected to the side wall of the scraper and the wall of the connecting rod near the round rod, respectively. The scraper edge is close to the wall of the observation window. The control screw is rotatably set on both sides of the linkage frame. The middle of both sides of the linkage frame is threaded with the control screw through the linkage block. A drive motor is connected to the lower part of the control screw on one side of the linkage frame. A transmission chain is provided between the control screws. The transmission chain is set on the top of the control screw. The top of the control screw is fixed with a completely identical synchronous sprocket near the transmission chain. The synchronous sprocket cooperates with the transmission chain.

2. A machine tool protective door according to claim 1, characterized in that: Each control screw has a fixing plate at its bottom. The top surface of the fixing plate is rotatably connected to the control screw near the control screw. The output shaft of the drive motor passes through the fixing plate and is fixedly connected to the bottom of the control screw. The lower end of the door is provided with a mounting plate near the drive motor. The mounting plate is fixedly connected to the door, and the top surface of the mounting plate is fixedly connected to the drive motor.

3. A machine tool protective door according to claim 1, characterized in that: A connecting seat is provided at the top of the door near the control screw. Both ends of the connecting seat extend toward the control screw. The control screws on both sides can be rotatably connected to both ends of the connecting seat. The connecting seat is located below the synchronous sprocket.

4. A machine tool protective door according to claim 3, characterized in that: The bottom surface of the connecting seat is provided with a limiting block, the bottom surface of the limiting block extends toward the observation window, and the middle part of the limiting block near the control screw is provided with a light hole that matches the control screw.

5. A machine tool protective door according to claim 3, characterized in that: A protective cover is fixedly installed on the top of the door near the connecting seat. The bottom of the protective cover has a receiving space, and the lower end of the protective cover is fixedly connected to the side wall of the connecting seat.

6. A machine tool protective door according to claim 1, characterized in that: A protective frame is provided in the middle of the door body near the control screw. The side of the protective frame near the linkage frame has an opening that matches the linkage block. The top of the protective frame extends toward the upper end of the control screw, and the bottom of the protective frame extends toward the lower end of the control screw. Both the top and bottom of the protective frame have clearance holes.

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