Protective door driving structure and machine tool

By using a motor-driven gear and rack structure, the problem of precise positioning and stable opening and closing of the machine tool protective door was solved, thus improving processing efficiency.

CN224144135UActive Publication Date: 2026-04-21NEWAY CNC EQUIPMENT (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NEWAY CNC EQUIPMENT (SUZHOU) CO LTD
Filing Date
2025-04-28
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing machine tool protective doors cannot be precisely adjusted and positioned, their opening and closing are unstable, and they are prone to snagging.

Method used

It adopts a motor-driven gear and rack structure. The gear is fixed to the output end of the motor, and the rack extends along the length of the protective door and meshes with the gear. The motor drives the gear to rotate, so as to achieve precise positioning and stable opening and closing of the protective door.

Benefits of technology

It achieves precise positioning and stable opening and closing of the protective door, improves processing efficiency, prevents the protective door from sags, and ensures the reliability of opening and closing the door.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective door driving structure and a machine tool, and belongs to the field of machine tools, the protective door driving structure comprises a machine tool body, a protective door slidably installed on the machine tool body, a motor, a gear and a rack, the motor is fixed on the machine tool body, the gear is fixedly installed at the output end of the motor, the rack is fixed on the machine tool body, the rack extends along the length direction of the protective door, and the rack is meshed with the gear. The motor drives the gear to rotate, the gear drives the protective door to slide relative to the lathe bed through the rack, and through the design, the moving speed of the protective door is adjustable, the protective door can be accurately positioned, and door opening and closing are stable.
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Description

Technical Field

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

[0002] Machine tool safety doors are safety devices used in industrial environments. Their primary function is to protect workers from dangers and injuries during machine operation. During machine processing, splashes of liquids, metal shavings, dust, or other impurities are generated. Machine safety doors can block these splashes, protecting surrounding workers from injury.

[0003] Existing protective doors are driven by cylinders, with one cylinder controlling one protective door. This structure cannot accurately adjust and position the protective door, and when opening, the protective door will hang slightly, causing the cylinder to strain and resulting in unstable opening and closing. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide a protective door drive structure that can accurately adjust and position the protective door and ensure stable opening and closing.

[0005] In order to overcome the shortcomings of the existing technology, the second objective of this utility model is to provide a machine tool that can accurately adjust and position the protective door and ensure stable opening and closing of the door.

[0006] One of the objectives of this utility model is achieved through the following technical solution:

[0007] The protective door drive structure includes a bed, a protective door slidably mounted on the bed, a motor, a gear, and a rack. The motor is fixed to the bed, the gear is fixedly mounted on the output end of the motor, the rack is fixed to the bed, and the rack extends along the length direction of the protective door. The rack meshes with the gear, the motor drives the gear to rotate, and the gear drives the protective door to slide relative to the bed through the rack.

[0008] Furthermore, the rack is located above the gear.

[0009] Furthermore, the bed is provided with a sliding groove, the protective door is slidably installed in the sliding groove, the motor is fixed to the outer side wall of the bed, and the gear is located in the sliding groove.

[0010] Furthermore, the protective door drive structure also includes a mounting bracket, which is fixed to the outer wall of the bed, and the motor is mounted on the mounting bracket.

[0011] Furthermore, the protective door drive structure also includes a spacer frame, which is fixed to the protective door, and the rack is fixed to the spacer frame.

[0012] Furthermore, the rack is parallel to the protective door.

[0013] Furthermore, the cross-section of the spacer is U-shaped.

[0014] Furthermore, the motor is a servo motor.

[0015] The second objective of this utility model is achieved by the following technical solution:

[0016] The machine tool includes any of the above-mentioned protective door drive structures.

[0017] Compared with the prior art, the motor of the protective door drive structure of this utility model is fixed to the bed, the gear is fixedly installed at the output end of the motor, the rack is fixed to the bed, the rack extends along the length direction of the protective door, the rack meshes with the gear, the motor drives the gear to rotate, and the gear drives the protective door to slide relative to the bed through the rack. With the above design, the movement speed of the protective door is adjustable, the position of the protective door can be accurately positioned, and the opening and closing of the door is stable. Attached Figure Description

[0018] Figure 1 This is a perspective view of the protective door drive structure of this utility model;

[0019] Figure 2 for Figure 1 A partial structural diagram of the protective door drive structure.

[0020] In the diagram: 10, protective door; 20, bed; 21, slide rail; 30, mounting bracket; 40, motor; 50, gear; 60, rack; 70, spacer. 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. 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.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Please see Figures 1 to 2 The protective door drive structure of this utility model includes a protective door 10, a bed 20, a mounting frame 30, a motor 40, a gear 50, a rack 60, and a spacer 70.

[0025] The protective door 10 is slidably installed on the bed 20. The protective door 10 moves on the bed 20 to open and close the processing area.

[0026] The bed 20 is provided with a slide groove 21, which extends along the length of the bed 20. The slide groove 21 is located at the top of the bed 20, and its cross-section is inverted L-shaped.

[0027] Mounting bracket 30 is fixed to the outer wall of bed 20 and is used to mount motor 40.

[0028] Motor 40 is fixed to mounting bracket 30. Motor 40 is a servo motor, and the output end of motor 40 extends into slide groove 21.

[0029] Gear 50 is fixed to the output end of motor 40 and is located in slide groove 21.

[0030] The rack 60 is fixed to the side of the bottom of the protective door 10 via a spacer 70, and the rack 60 is parallel to the protective door 10. The rack 60 meshes with the gear 50, and the rack 60 is located above the gear 50. The spacer 70 has a U-shaped cross-section, and through the spacer 70, the bottom of the protective door 10 is separated from the gear 50, preventing the gear 50 from colliding with the protective door 10 and causing damage to the protective door 10.

[0031] When the protective door drive structure is working, the motor 40 drives the gear 50 to rotate, and the gear 50 meshes with the rack 60, thereby driving the protective door 10 to move relative to the bed 20, so that the protective door 10 can be opened or closed.

[0032] This application uses a motor 40 to drive a gear 50 and a rack 60 to move the protective door 10 relative to the machine bed 20. The servo motor's cycle time can be adjusted through programming, allowing for precise positioning of the protective door 10 and enabling rapid opening and closing, thus improving processing efficiency. The protective doors 10 open and close synchronously via the transmission between the rack 60 and the gear 50, requiring minimal installation space. The gear 50 supports the protective door 10, preventing it from drooping and ensuring stable opening and closing.

[0033] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A guard door drive structure comprising a bed and a guard door slidingly mounted to the bed, characterized by: The protective door drive structure also includes a motor, a gear, and a rack. The motor is fixed to the bed, the gear is fixedly installed at the output end of the motor, the rack is fixed to the bed, the rack extends along the length of the protective door, the rack meshes with the gear, the motor drives the gear to rotate, and the gear drives the protective door to slide relative to the bed through the rack.

2. The door drive structure according to claim 1, wherein: The rack is located above the gear.

3. The door drive structure according to claim 1, wherein: The bed is provided with a sliding groove, the protective door is slidably installed in the sliding groove, the motor is fixed to the outer side wall of the bed, and the gear is located in the sliding groove.

4. The door drive structure according to claim 3, wherein: The protective door drive structure also includes a mounting bracket, which is fixed to the outer side wall of the bed, and the motor is mounted on the mounting bracket.

5. The protected door drive arrangement according to claim 1, characterized in that: The protective door drive structure also includes a spacer frame, which is fixed to the protective door, and the rack is fixed to the spacer frame.

6. The door drive structure according to claim 5, wherein: The rack is parallel to the protective door.

7. The protected door drive arrangement according to claim 5, characterized in that: The spacer has an octagonal cross-section.

8. The protected door drive arrangement according to claim 1, characterized in that: The motor is a servo motor.

9. Machine tool, characterized in that: The machine tool includes the protective door drive structure as described in any one of claims 1-8.