Protective door of numerical control machine tool

Abstract

The utility model discloses a protective door of a numerically-controlled machine tool, which relates to the field of numerically-controlled machine tools, and adopts the technical scheme that the protective door comprises two N-shaped rails which are respectively mounted on the upper side and the lower side of the surface of the numerically-controlled machine tool, an inner block is connected in the N-shaped rails in a sliding manner, one side of each N-shaped rail is open for the inner block to insert, and the other side of each N-shaped rail is open. A door body is fixedly connected between the inner blocks, an observation window is arranged on the door body, the protective door of the numerical control machine tool further comprises an elastic structure, the elastic structure is installed on one side of the opening portion of the N-shaped rail, the movable plate is elastically driven by the elastic structure to block the opening of the N-shaped rail, and the protective door has the advantages that the door body on the protective door is convenient to disassemble and assemble, and meanwhile the structure of the door body is simple. And therefore, the practicability of the protective door is improved.

Description

Technical Field

[0001] The utility model relates to the field of numerical control machine tools, and more specifically, to a protective door for numerical control machine tools. Background Art

[0002] The main function of CNC machine tool protective doors is to protect operators from possible injuries caused by the moving parts of the machine tool, and also to prevent the impact of chips, coolant and other splashes on personnel. The design of the protective door requires that it is convenient for the operator to observe the processing situation, and at the same time provide the maximum degree of safety without hindering the operation. At the same time, CNC machine tool protective doors are usually made of durable materials, such as tempered glass or high-strength plastic, to maintain good visibility and protection. The protective door is mainly composed of a door body and a track for the door body to slide.

[0003] At present, with the increase of production capacity, CNC machine tools need to be used for a long time without interruption, which makes the door body on the protective door prone to deformation and damage, and thus needs to be replaced. In order to facilitate replacement, some CNC machine tools will install a quick-release structure on the protective door to facilitate the replacement of the protective door body. For example: Publication No. CN115229557A discloses a protective door for CNC machine tools that is easy to disassemble. The pressing piece is manually pressed to drive the trigger block to move backward under force, so that the inclined surface of the trigger block pushes the inclined surface of the force block, so that the force drives the connecting plate to move outward, and the connecting plate drives the driving rack to move outward, so that the driving rack can be in a position to mesh with gear B, so as to prepare for the subsequent removal of the protective door body.

[0004] Most of the components of the quick-release structure in the above invention are installed on the protective door body, which makes the processing technology of the door body complicated and is not conducive to manufacturing. However, it is the door body that needs to be replaced frequently (the track is usually not easily damaged), which leads to poor practicality of the overall protective door.

[0005] Therefore, in order to solve the above technical problems, the present application proposes a protective door for a CNC machine tool. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a protective door for a CNC machine tool.

[0007] To achieve the above object, the utility model provides the following technical solution: a protective door for a CNC machine tool, comprising two N-shaped tracks, which are respectively installed on the upper and lower sides of the surface of the CNC machine tool, wherein an inner block is slidably connected to the inside of the N-shaped track, one side of the N-shaped track is open for the inner block to be inserted, a door body is fixedly connected between the inner blocks, and an observation window is provided on the door body, wherein the protective door for the CNC machine tool further comprises:

[0008] The elastic structure is installed on one side of the opening of the N-shaped track and blocks the opening of the N-shaped track by elastically driving the movable plate.

[0009] Preferably, the bottom of the inner block is rotatably connected with a roller, so that the staff can save more effort when pushing the door body to move.

[0010] Preferably, the elastic structure includes a connecting shell A fixed on one side of the opening of the N-shaped track, and telescopic rods are fixedly connected to both sides of the inner surface of the connecting shell A, and the head of the telescopic rod is fixedly connected to a moving block whose surface is welded to the movable plate, and a spring is sleeved on the telescopic rod, and one end of the spring is fixed to the back of the moving block, and the other side is fixed to the inner surface of the connecting shell A.

[0011] Preferably, an L-shaped rod is welded on the surface of the moving block, a through groove for the L-shaped rod to pass through is opened on the surface of the connecting shell A, the head of the L-shaped rod is rotatably connected to a rotating plate, and a blocking block is fixedly connected to the surface of the connecting shell A.

[0012] Preferably, the door body is also provided with a cleaning component for cleaning the observation window.

[0013] Preferably, the cleaning component includes a connecting shell B embedded and fixed inside the door body, one side of the connecting shell B is flush with the inner surface of the door body, and the other side protrudes from the outer surface of the door body, the end of the connecting shell B flush with the door body is open, a support plate is welded on the inner surface of the door body, and the top of the support plate is fixedly connected to a sliding rod for the sliding sleeve, one side of the sleeve is detachably connected to a movable plate by screws, bristles are bonded to the movable plate, and the bristles are in contact with the surface of the observation window located in the CNC machine tool, and a transmission component for driving the sleeve to move up and down is installed on the connecting shell B, the sleeve drives the movable plate and the bristles to move up and down in a straight line, and the surface of the observation window located in the CNC machine tool is cleaned up and down by the bristles.

[0014] Preferably, the transmission assembly includes a screw rod located inside the connecting shell B, which is driven by a motor located at the top of the connecting shell B. A rod sleeve is threadedly connected to the outer wall of the screw rod. The back of the rod sleeve is fixed to the surface of the sliding sleeve through a connecting plate. The rod sleeve drives the sliding sleeve to move up and down, and the sliding sleeve moves linearly up and down along the sliding rod.

[0015] Preferably, a handle for facilitating pushing the door body is fixedly connected to the surface of the door body below the observation window, and the handle is used to assist the staff in pushing the observation window to move.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model slides the inner block from the opening at the side end of the N-shaped track into the two N-shaped tracks, and limits the upper and lower ends of the door body through the N-shaped track, so that it will not leave the N-shaped track and can slide along the N-shaped track, and then the opening of the N-shaped track is blocked by the elastic structure to prevent the door body from sliding out of the opening, and the installation of the door body can be completed. Similarly, the movement of the movable plate compresses the elastic component in the elastic structure, thereby opening the opening of the N-shaped track, and the door body can slide out of the N-shaped track to complete its disassembly. The disassembly and assembly are very convenient, and the disassembly and assembly parts are all installed on the N-shaped track. The structure of the door body is relatively simple, which is more conducive to manufacturing, thereby improving the practicality of the protective door, thereby solving the problem that most of the components of the quick-release structure in the background technology are installed on the protective door body, resulting in complicated processing technology of the door body, thereby affecting the practicality;

[0018] 2. The utility model cleans the surface of the observation window located inside the CNC machine tool by controlling the motor from the outside, thereby preventing the surface from being stained during CNC machine tool processing, thereby affecting the staff's understanding of the real-time processing status. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0022] Figure 3 For this utility model Figure 1 A local structure enlarged view;

[0023] Figure 4 This is a schematic diagram of the internal structure of the connecting shell A in the present utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the connecting shell B (seen from the front) in the present invention;

[0025] Figure 6 It is a schematic diagram of the connection structure between the inner block and the roller in the utility model.

[0026] In the figure: 1. N-shaped track; 2. inner block; 3. door body; 4. elastic structure; 401. connecting shell A; 402. telescopic rod; 403. moving block; 404. spring; 405. L-shaped rod; 406. through groove; 407. rotating plate; 408. blocking block; 5. movable plate; 6. cleaning component; 601. connecting shell B; 602. supporting plate; 603. sliding rod; 604. sliding sleeve; 605. moving plate; 606. transmission component; 6061. screw rod; 6062. motor; 6063. rod sleeve; 607. bristles; 7. roller; 8. observation window. DETAILED DESCRIPTION

[0027] like Figure 1-6 As shown, the utility model provides a protective door for a CNC machine tool, comprising an N-shaped track 1, and the number of the N-shaped tracks 1 is two, which are respectively installed on the upper and lower sides of the surface of the CNC machine tool, an inner block 2 is slidably connected inside the N-shaped track 1, one side of the N-shaped track 1 is open for the inner block 2 to be inserted, a door body 3 is fixedly connected between the inner blocks 2, an observation window 8 is provided on the door body 3, and a handle 9 for facilitating pushing the door body is fixedly connected to the surface of the door body 3 below the observation window 8, and the protective door for the CNC machine tool also includes: an elastic structure 4, which is installed on one side of the opening of the N-shaped track 1, and blocks the opening of the N-shaped track 1 by elastically driving a movable plate 5, that is, the inner block 2 is moved from the side end of the N-shaped track 1 The opening slides into the two N-shaped tracks 1, and the upper and lower ends of the door body 3 are limited by the N-shaped track 1 so that it will not leave the N-shaped track 1 and can slide along the N-shaped track 1. Then, the movable plate 5 is driven by the elastic structure 4 to block the opening of the N-shaped track 1 to prevent the door body 3 from sliding out of the opening, and the installation of the door body 3 is completed. Similarly, the movement of the movable plate 5 compresses the elastic component in the elastic structure 4, thereby opening the opening of the N-shaped track 1, and the door body 3 can be slid out of the N-shaped track 1 to complete its disassembly. The disassembly and assembly is very convenient, and the disassembly and assembly parts are all installed on the N-shaped track 1. The structure of the door body 3 is relatively simple, which is more conducive to manufacturing, thereby improving the practicality of the protective door.

[0028] And the length of the inner block 2 can be designed to be shorter than the internal space of the N-shaped track 1 (the freed space is used to accommodate the roller 7), so that the roller 7 is set at the bottom thereof, and the roller 7 is rotatably connected to the bottom of the inner block 2. In this way, when the inner block 2 slides in the N-shaped track 1, the roller 7 rotates accordingly, thereby reducing the sliding friction, making it easier for the staff to push the door body 3 to move.

[0029] The utility model also provides a specific structure of the elastic structure 4: the elastic structure includes a connecting shell A401 fixed to one side of the opening of the N-shaped track 1, and the inner surface of the connecting shell A401 is fixedly connected to both sides of the telescopic rod 402, and the head of the telescopic rod 402 is fixedly connected to a moving block 403 whose surface is welded to the movable plate 5, and a spring 404 is sleeved on the telescopic rod 402, and one end of the spring 404 is fixed to the back of the moving block 403, and the other side is fixed to the inner surface of the connecting shell A401, that is, the spring 404 is fixed to the inner surface of the connecting shell A401 in a normal state. 4 acts on the moving block 403, drives the movable plate 5 to the opening of the N-shaped track 1 to block the opening. At this time, the door body 3 is restricted on the N-shaped track 1, pushing the movable plate 5 to move to the position of the connecting shell A401, and the movable plate 5 drives the moving block 403 to move. The telescopic rod 402 shrinks to maintain the linear movement of the moving block 403 and the movable plate 5, and at the same time squeezes the spring 404, thereby pushing the movable plate 5 into the connecting shell A401, thus opening the opening of the N-shaped track 1, and the door body 3 can be slid out for disassembly.

[0030] Furthermore, an L-shaped rod 405 is welded to the surface of the moving block 403, and a through groove 406 for the L-shaped rod 405 to pass through is opened on the surface of the connecting shell A401. The head of the L-shaped rod 405 is rotatably connected to a rotating plate 407, and the surface of the connecting shell A401 is fixedly connected to a blocking block 408, that is, when the moving block 403 moves, it will drive the movement of the L-shaped rod 405. When the movable plate 5 completely enters the connecting shell A401, the rotating plate 407 can be rotated so that the rotating plate 407 abuts against the blocking block 408, thereby limiting the positions of the L-shaped rod 405 and the blocking block 408, thereby avoiding the rebound of the movable plate 5 (the spring 404 is in a compressed state at this time). When the movable plate 5 needs to rebound, it only needs to rotate the rotating plate 407 to prevent it from abutting against the blocking block 408.

[0031] The door body 3 is also provided with a cleaning component 6 for cleaning the observation window 8. The cleaning component 6 includes a connecting shell B601 embedded and fixed inside the door body 3. One side of the connecting shell B601 is flush with the inner surface of the door body 3, and the other side protrudes from the outer surface of the door body 3. The end of the connecting shell B601 flush with the door body 3 is open. A support plate 602 is welded on the inner surface of the door body 3, and a slide rod 603 for sliding a sleeve 604 is fixedly connected to the top of the support plate 602. One side of the sleeve 604 is detachably connected by screws. A movable plate 605 is connected, on which bristles 607 are bonded, and the bristles 607 are in contact with the surface of the observation window 8 located in the CNC machine tool. A transmission component 606 for driving the sliding sleeve 604 to move up and down is installed on the connecting shell B601. The transmission component 606 includes a screw rod 6061 located inside the connecting shell B601, which is driven by a motor 6062 located at the top of the connecting shell B601. A rod sleeve 6063 is threadedly connected to the outer wall of the screw rod 6061, and the back of the rod sleeve 6063 is connected to the connecting plate through the connecting plate. The surface of the sliding sleeve 604 is fixed, that is, the control button on the motor 6062 (the motor 6062 is preferably powered by a battery) controls the forward or reverse rotation of the motor 6062, and the motor 6062 drives the screw rod 6061 to rotate clockwise or counterclockwise, the screw rod 6061 drives the rod sleeve 6063 to move up and down, the rod sleeve 6063 drives the sliding sleeve 604 to move up and down, the sliding sleeve 604 slides up and down along the sliding rod 603, the sliding sleeve 604 drives the moving plate 605 to move up and down, and the moving plate 605 drives The bristles 607 move up and down in a straight line, and the bristles 607 can clean the surface of the observation window 8 located inside the CNC machine tool up and down. In this way, when the CNC machine tool is processing, the surface of the observation window 8 located inside the CNC machine tool can be cleaned by controlling the motor 6062 from the outside to prevent the surface from being stained with stains (debris, refrigerant, etc.) during the CNC machine tool processing, thereby affecting the staff's understanding of the real-time processing status. The connecting shell B601 can prevent debris, refrigerant, etc. from flying out, but the inside of the connecting shell needs to be cleaned regularly.

[0032] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A protective door for a CNC machine tool, characterized in that: The protective door comprises an N-shaped track (1), wherein the number of the N-shaped tracks (1) is two and they are respectively installed on the upper and lower sides of the surface of a numerically controlled machine tool; an inner block (2) is slidably connected to the inside of the N-shaped track (1); one side of the N-shaped track (1) is open for the inner block (2) to be inserted; a door body (3) is fixedly connected between the inner blocks (2); an observation window (8) is provided on the door body (3); and the protective door of the numerically controlled machine tool further comprises: The elastic structure (4) is installed on one side of the opening of the N-shaped track (1) and blocks the opening of the N-shaped track (1) by elastically driving the movable plate (5).

2. The protective door for a CNC machine tool according to claim 1, characterized in that: The bottom of the inner block (2) is rotatably connected to a roller (7).

3. The protective door for a CNC machine tool according to claim 1, characterized in that: The elastic structure (4) comprises a connecting shell A (401) fixed to one side of the opening of the N-shaped track (1), the inner surface of the connecting shell A (401) is fixedly connected to telescopic rods (402) on both sides, the head of the telescopic rod (402) is fixedly connected to a moving block (403) whose surface is welded to the movable plate (5), and a spring (404) is sleeved on the telescopic rod (402), and one end of the spring (404) is fixed to the back of the moving block (403), and the other end is fixed to the inner surface of the connecting shell A (401).

4. The protective door for a CNC machine tool according to claim 3, characterized in that: An L-shaped rod (405) is welded to the surface of the moving block (403), a through slot (406) for the L-shaped rod (405) to pass through is provided on the surface of the connecting shell A (401), a rotating plate (407) is rotatably connected to the head of the L-shaped rod (405), and a blocking block (408) is fixedly connected to the surface of the connecting shell A (401).

5. The protective door for a CNC machine tool according to claim 1, characterized in that: The door body (3) is also provided with a cleaning component (6) for cleaning the observation window (8).

6. The protective door for a CNC machine tool according to claim 5, characterized in that: The cleaning component (6) comprises a connecting shell B (601) embedded and fixed inside the door body (3); one side of the connecting shell B (601) is flush with the inner surface of the door body (3), and the other side protrudes from the outer surface of the door body (3); the end of the connecting shell B (601) that is flush with the door body (3) is open; a support plate (602) is welded to the inner surface of the door body (3), and a slide rod (603) for sliding a sleeve (604) is fixedly connected to the top of the support plate (602); a movable plate (605) is detachably connected to one side of the sleeve (604) by screws; bristles (607) are bonded to the movable plate (605), and the bristles (607) are in contact with the surface of the observation window (8) located inside the CNC machine tool; and a transmission component (606) for driving the sleeve (604) to move up and down is installed on the connecting shell B (601).

7. The protective door for a CNC machine tool according to claim 6, characterized in that: The transmission assembly (606) comprises a lead screw (6061) located inside the connection shell B (601), which is driven by a motor (6062) located at the top of the connection shell B (601); a rod sleeve (6063) is threadedly connected to the outer wall of the lead screw (6061); and the back of the rod sleeve (6063) is fixed to the surface of the sliding sleeve (604) via a connecting plate.

8. The protective door for a CNC machine tool according to claim 1, characterized in that: A handle (9) for facilitating pushing the door body is fixedly connected to the surface of the door body (3) below the observation window (8).

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