Adjustable guard for a numerically controlled machine tool

Abstract

The utility model belongs to numerical control mechanism protection field especially adjustable protection device of numerical control machine tool, in view of existing monitoring window after long -term use, its inner wall will be splashed scrap and cause scratch by wiper plate, influence its normal use, serious words can also cause monitoring window damage, reduce the problem of protection performance, present the following scheme, it includes rectangular frame, the rear side fixed connection of rectangular frame has the connecting frame that is suitable for rectangular frame, both sides of connecting frame all are fixedly connected with the mounting plate that is used for installing fixed device, effectively reduce the scratch that appears because numerical control machine tool long -term use of no.

Description

Technical Field

[0001] This utility model relates to the field of CNC mechanism protection technology, and in particular to an adjustable protective device for CNC machine tools. Background Technology

[0002] CNC machine tool protective covers are used to protect machine tools. There are many types, including bellows protective covers, aluminum curtains, and steel plate protective covers, which are used on guide rails. There are also lead screw protective covers, which include round, square, and polygonal shapes. These types are made in different ways, such as steel wire support type, stitched type, roller shutter type protective covers, and armor-type protective covers, etc.

[0003] A search revealed that patent CN208231404U discloses a protective device for CNC machine tools.

[0004] However, the above technical solutions have the following problems: after long-term use, the inner wall of the monitoring window will be scratched by flying debris and wipers, affecting its normal use. In severe cases, it may even damage the monitoring window and reduce its protective performance. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where, after long-term use, the inner wall of the monitoring window is scratched by flying debris and wipers, affecting its normal use and, in severe cases, damaging the monitoring window and reducing its protective performance. Therefore, an adjustable protective device for CNC machine tools is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable protective device for a CNC machine tool includes a rectangular frame. A connecting frame adapted to the rectangular frame is fixedly connected to the rear side of the rectangular frame. Mounting plates for mounting and fixing the device are fixedly connected to both sides of the connecting frame. Each of the two mounting plates has three mounting holes. A protective mechanism for protecting the CNC machine tool is provided on the rectangular frame. A protective mechanism for shielding and protecting the protective mechanism is provided on the connecting frame. A disassembly and assembly mechanism for facilitating the disassembly and assembly of the protective mechanism is provided on the protective mechanism.

[0008] In one possible design, the protective mechanism includes a first handle, a connecting plate, two sliders, a first transparent plate, and two sliding grooves. The top and bottom of the first transparent plate are fixedly connected to one side of the two sliders, respectively. The two sliding grooves are respectively set on the top inner wall and bottom inner wall of the same rectangular frame and are adapted to the sliders. The two sliders are slidably connected to the two sliding grooves, and one side of the first transparent plate slides through one side inner wall of the rectangular frame and is fixedly connected to one side of the connecting plate. The first handle is fixedly set on the other side of the connecting plate by bolts.

[0009] In one possible design, the protective mechanism includes a second transparent plate, a top plate, and a second handle. The second handle is fixed to the top of the top plate by bolts. The second transparent plate is located at the bottom center of the top plate. The bottom of the second transparent plate slides through the top of the connecting frame and is attached to the bottom inner wall of the connecting frame.

[0010] In one possible design, the disassembly and assembly mechanism includes a rotating handle, a bidirectional lead screw, four base plates, two sliding rods, two clamping blocks, and two rubber pads. A rectangular groove is formed at the bottom of the top plate. Both ends of the bidirectional lead screw are rotatably connected to the inner walls of the two sides of the same rectangular groove. A first post is fixedly connected to one side of the rotating handle. One end of the first post rotatably passes through the front side of the top plate and extends into the rectangular groove. One end of the first post is fixedly connected to one end of the bidirectional lead screw. Two moving blocks are threaded onto the bidirectional lead screw. The bottoms of the two moving blocks are fixedly connected to the top center of the two clamping blocks. The two rubber pads are fixedly disposed on the adjacent sides of the two clamping blocks. The tops of the four base plates are fixedly connected to the four bottom corners of the same top plate. Both ends of the two sliding rods are fixedly connected to one side of the four base plates. The two ends of the two clamping blocks are slidably sleeved on the two sliding rods. The adjacent sides of the two rubber pads are tightly pressed against the front and rear sides of the same second transparent plate.

[0011] In one possible design, a brush for cleaning the inner wall of the second transparent plate is fixedly installed on the top inner wall of the connecting frame, and the bristles of the brush are in contact with the rear side of the second transparent plate.

[0012] In one possible design, a limiting strip is fixedly provided on one side of the front of the first transparent plate to prevent the first transparent plate from detaching from the rectangular frame.

[0013] In this application, the entire protective device is installed and fixed on the CNC machine tool using bolts and other fasteners through mounting holes on the mounting plates on both sides of the connecting frame. When the protection range needs to be adjusted, the operator pulls the first handle, which moves the connecting plate, which in turn moves the first transparent plate fixedly connected to it. Since the top and bottom of the first transparent plate are slidably connected to the inner walls of the top and bottom of the rectangular frame through sliders, the first transparent plate can slide stably within the rectangular frame, thereby achieving protection for different ranges. The limit strip prevents the first transparent plate from sliding excessively and detaching from the rectangular frame. The second transparent plate is located at the center of the bottom of the top plate, and its bottom slides through the top of the connecting frame and is attached to the inner wall of the bottom of the connecting frame. The second transparent plate provides shielding protection for the first transparent plate, and both are made of transparent material, which does not hinder the monitoring of the CNC machine tool. It can also reduce the scratches on the first transparent plate caused by flying debris from the CNC machine tool, extending the service life of the first transparent plate. When debris adheres to the transparent panel, the top plate is moved by the second handle, which in turn moves the second transparent panel. The bristles of the brush on the inner wall of the top of the connecting frame contact the back of the second transparent panel, cleaning its inner wall and removing dust and other impurities. When the second transparent panel needs to be removed, it is taken out of the connecting frame, and then the rotating handle is turned. The rotating handle drives the first column to rotate, which in turn drives the double-acting screw to rotate within the rectangular groove at the bottom of the top plate. Two movable blocks are fitted onto the upper threaded sleeve, and the two movable blocks are fixedly connected to the two clamping blocks respectively. At the same time, the two clamping blocks are slidably fitted onto the two slide rods at both ends. Therefore, when the bidirectional screw rotates, the two movable blocks will drive the clamping blocks to move towards or away from each other along the slide rods. When the two clamping blocks move towards each other, the rubber pad clamps the No. 2 transparent plate; when the two clamping blocks move away from each other, the rubber pad releases the No. 2 transparent plate, which facilitates the periodic disassembly and replacement of the No. 2 transparent plate, so as to make it easier to see the working process of the CNC machine tool.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this invention, the second transparent plate of the protective mechanism shields and protects the first transparent plate, effectively reducing scratches on the first transparent plate caused by prolonged use of CNC machine tools, extending its service life, and reducing maintenance costs. The design of the disassembly and assembly mechanism makes the disassembly and assembly of the second transparent plate very convenient, making it easy and quick to disassemble and replace the second transparent plate periodically, thus improving maintenance efficiency. The brush on the inner wall of the top of the connecting frame can clean the inner wall of the second transparent plate as it moves up and down, saving manpower and time costs, while ensuring the cleanliness of the second transparent plate and improving the overall performance of the protective device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is a schematic diagram of the protective structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the disassembly and assembly structure of this utility model.

[0020] In the diagram: 1. Rectangular frame; 2. Transparent plate No. 1; 3. Limiting strip; 4. Connecting plate; 5. Handle No. 1; 6. Mounting plate; 7. Connecting frame; 8. Slider; 9. Transparent plate No. 2; 10. Top plate; 11. Brush; 12. Slide groove; 13. Two-way lead screw; 14. Base plate; 15. Slide rod; 16. Clamping block; 17. Rubber pad; 18. Mounting hole; 19. Handle No. 2; 20. Rotating handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1

[0023] Reference Figures 1-4 A protective device includes a rectangular frame 1, a connecting frame 7, a mounting plate 6, a protective mechanism, a protective mechanism, and a disassembly and assembly mechanism. The rectangular frame 1 is adapted to and fixedly connected to the connecting frame 7. Mounting plates 6 are fixedly connected to both sides of the connecting frame 7. Each mounting plate 6 has three mounting holes 18. By installing bolts or other fasteners in the mounting holes 18, the device can be installed and fixed on a CNC machine tool. The protective mechanism is used to protect the CNC machine tool, the protective mechanism shields and protects the protective mechanism, and the disassembly and assembly mechanism facilitates the disassembly and assembly of the protective mechanism.

[0024] The protective mechanism includes a first handle 5, a connecting plate 4, two sliders 8, a first transparent plate 2, and two sliding grooves 12. The top and bottom of the first transparent plate 2 are fixedly connected to one side of the two sliders 8, respectively. The two sliding grooves 12 are respectively set on the inner wall of the top and bottom of the rectangular frame 1 and are adapted to the sliders 8. The two sliders 8 are slidably connected to the two sliding grooves 12, so that the first transparent plate 2 can slide within the rectangular frame 1. One side of the first transparent plate 2 slides through one side of the inner wall of the rectangular frame 1 and is fixedly connected to one side of the connecting plate 4. The first handle 5 is fixedly set on the other side of the connecting plate 4 by bolts. By pulling the first handle 5, the first transparent plate 2 can be slid within the rectangular frame 1 to adjust the protective range. A limiting strip 3 is fixedly set on the front side of the first transparent plate 2 to prevent the first transparent plate 2 from detaching from the rectangular frame 1.

[0025] The protective mechanism includes a second transparent plate 9, a top plate 10, and a second handle 19. The second handle 19 is fixed to the top of the top plate 10 by bolts. The second transparent plate 9 is located at the bottom center of the top plate 10. The bottom of the second transparent plate 9 slides through the top of the connecting frame 7 and is attached to the bottom inner wall of the connecting frame 7, which plays a role in shielding and protecting the protective mechanism and preventing the first transparent plate 2 from having many scratches after the CNC machine tool has been used for a long time.

[0026] The disassembly and assembly mechanism includes a rotating handle 20, a double-acting lead screw 13, four base plates 14, two sliding rods 15, two clamping blocks 16, and two rubber pads 17. A rectangular groove is formed at the bottom of the top plate 10. Both ends of the double-acting lead screw 13 are rotatably connected to the inner walls of the same rectangular groove via bearings. A first post is fixedly connected to one side of the rotating handle 20. One end of the first post rotatably passes through the front side of the top plate 10 and extends into the rectangular groove. One end of the first post is fixedly connected to one end of the double-acting lead screw 13. Two moving blocks are threaded onto the double-acting lead screw 13. The bottoms of the two moving blocks are fixedly connected to the top center of the two clamping blocks 16. The two rubber pads 17 are... The two clamping blocks 16 are fixedly installed on the side of the two clamping blocks 16 that are close to each other. The tops of the four base plates 14 are fixedly connected to the four bottom corners of the same top plate 10. The two ends of the two sliding rods 15 are fixedly connected to one side of the four base plates 14 respectively. The two ends of the two clamping blocks 16 are slidably sleeved on the two sliding rods 15 respectively. The two rubber pads 17 are close to each other on the front and back sides of the same second transparent plate 9 respectively. By rotating the rotating handle 20, the bidirectional lead screw 13 is driven to rotate, so that the two moving blocks drive the clamping blocks 16 to move towards or away from each other, thereby clamping or releasing the second transparent plate 9, which is convenient for periodic disassembly and replacement of the second transparent plate 9.

[0027] This application can be used in the field of CNC mechanism protection, or in other fields applicable to this application.

[0028] Example 2

[0029] refer to Figures 1-4 Based on Embodiment 1, an adjustable protective device for a CNC machine tool is provided, comprising:

[0030] A brush 11 for cleaning the inner wall of the second transparent plate 9 is fixedly installed on the top inner wall of the connecting frame 7. The bristles of the brush 11 are in contact with the rear side of the second transparent plate 9. When the second transparent plate 9 moves up and down, the brush 11 can clean its inner wall.

[0031] Both transparent panel 2 (No. 1) and transparent panel 9 (No. 2) are made of PAM board material.

[0032] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable protective device for a CNC machine tool, characterized in that, The device includes a rectangular frame (1), a connecting frame (7) adapted to the rectangular frame (1) is fixedly connected to the rear side of the rectangular frame (1), and mounting plates (6) for installing and fixing the device are fixedly connected to both sides of the connecting frame (7). Each of the two mounting plates (6) has three mounting holes (18). The rectangular frame (1) is provided with a protective mechanism for protecting the CNC machine tool, and the connecting frame (7) is provided with a protective mechanism for shielding and protecting the protective mechanism. The protective mechanism is provided with a disassembly and assembly mechanism for easy disassembly and assembly.

2. The adjustable protective device for a CNC machine tool according to claim 1, characterized in that, The protective mechanism includes a first handle (5), a connecting plate (4), two sliders (8), a first transparent plate (2), and two sliding grooves (12). The top and bottom of the first transparent plate (2) are fixedly connected to one side of the two sliders (8), respectively. The two sliding grooves (12) are respectively set on the top inner wall and bottom inner wall of the same rectangular frame (1) and are adapted to the sliders (8). The two sliders (8) are slidably connected to the two sliding grooves (12), and one side of the first transparent plate (2) slides through one side of the inner wall of the rectangular frame (1) and is fixedly connected to one side of the connecting plate (4). The first handle (5) is fixedly set on the other side of the connecting plate (4) by bolts.

3. The adjustable protective device for a CNC machine tool according to claim 1, characterized in that, The protective mechanism includes a second transparent plate (9), a top plate (10), and a second handle (19). The second handle (19) is fixed to the top of the top plate (10) by bolts. The second transparent plate (9) is located at the bottom center of the top plate (10). The bottom of the second transparent plate (9) slides through the top of the connecting frame (7) and is attached to the bottom inner wall of the connecting frame (7).

4. The adjustable protective device for a CNC machine tool according to claim 3, characterized in that, The disassembly and assembly mechanism includes a rotating handle (20), a double-acting lead screw (13), four base plates (14), two sliding rods (15), two clamping blocks (16), and two rubber pads (17). A rectangular groove is provided at the bottom of the top plate (10). The two ends of the double-acting lead screw (13) are rotatably connected to the inner walls of the two sides of the same rectangular groove. A No. 1 post is fixedly connected to one side of the rotating handle (20). One end of the No. 1 post rotatably passes through the front side of the top plate (10) and extends into the rectangular groove. One end of the No. 1 post is fixedly connected to one end of the double-acting lead screw (13). Two movable parts are threaded on the double-acting lead screw (13). The bottom of the two movable blocks is fixedly connected to the top center of the two clamping blocks (16), the two rubber pads (17) are fixedly set on the side of the two clamping blocks (16) that are close to each other, the top of the four base plates (14) is fixedly connected to the bottom four corners of the same top plate (10), the two ends of the two slide rods (15) are fixedly connected to the side of the four base plates (14), the two ends of the two clamping blocks (16) are slidably sleeved on the two slide rods (15), and the side of the two rubber pads (17) that are close to each other is in close contact with the front and rear sides of the same second transparent plate (9).

5. An adjustable protective device for a CNC machine tool according to claim 1, characterized in that, A brush (11) for cleaning the inner wall of the second transparent plate (9) is fixedly installed on the top inner wall of the connecting frame (7), and the bristles of the brush (11) are in contact with the rear side of the second transparent plate (9).

6. An adjustable protective device for a CNC machine tool according to claim 2, characterized in that, A limiting strip (3) is fixedly provided on the front side of the first transparent plate (2) to prevent the first transparent plate (2) from detaching from the rectangular frame (1).

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