Sliding door of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool sliding door, which belongs to the technical field of numerical control machine tool equipment, and comprises a shield main body provided with two belt wheels, and the belt wheels are connected with a driving component; the door body comprises an inner-layer door and an outer-layer door; the synchronous belt is mounted on the two belt wheels; a driving plate is arranged on the inner layer door and is fixedly connected with the synchronous belt; a first connecting part is arranged at one end of the shear fork assembly, a second connecting part is arranged at the other end of the shear fork assembly, and a third connecting part is arranged between the first connecting part and the second connecting part; the first connecting part is fixedly connected with the shield main body, the second connecting part is fixedly connected with the inner-layer door, and the third connecting part is fixedly connected with the outer-layer door; the inner layer door is fixedly connected with the synchronous belt, and when the driving assembly drives the belt wheel to rotate, the synchronous belt moves to drive the inner layer door to move; the inner-layer door moves to drive the shear fork assembly to stretch out and draw back, so that the outer-layer door moves along with the inner-layer door, the moving amplitude of the inner-layer door and the moving amplitude of the outer-layer door are in a fixed proportion, smooth and stable opening and closing of the door body are guaranteed, and the door opening space is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tool equipment, in particular to a sliding door for a numerical control machine tool. Background Art

[0002] With the gradual improvement of the automation degree of machine tools, the automation demand of the guard as one of the important components of machine tools is also highly valued; for machine tools, especially large machine tools, there are high requirements for the automatic operation of the guard and the smoothness of operation; at present, the guard of CNC machine tools usually adopts a sliding door structure, and the door opening space of the sliding door structure will also affect the floor area of ​​the guard to a certain extent, and has higher requirements for the loading of workpieces, especially large workpieces; specifically, when the door opening space of the sliding door structure is small, it will affect the entry of large workpieces into the machine tool, and directly increasing the door opening space of the sliding door structure will lead to an increase in the volume of the guard.

[0003] Therefore, the research and development of a CNC machine tool sliding door that can increase the door opening space without increasing the volume and improve the smoothness and stability of the door opening and closing is a problem that needs to be solved urgently at this stage. Utility Model Content

[0004] In response to the problems existing in the prior art, the utility model provides a sliding door for a CNC machine tool, in which an inner door is fixedly connected to a synchronous belt through a driving plate. When the driving assembly drives the pulley to rotate, the movement of the synchronous belt can drive the inner door to move. At the same time, the first connecting part, the second connecting part and the third connecting part on the scissors-type assembly are respectively fixedly connected to the shield body, the inner door and the outer door. When the inner door moves, the scissors-type assembly can be driven to extend and retract, so that the outer door also moves accordingly. Moreover, the movement amplitudes of the inner door and the outer door are in a fixed ratio, which ensures that the door body opens and closes smoothly and stably, and effectively increases the door opening space.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] The utility model provides a sliding door for a CNC machine tool, comprising:

[0007] A shield body, wherein two pulleys are provided on the shield body, and the pulleys are connected to a driving assembly for driving the pulleys to rotate;

[0008] A door body, the door body is movably arranged on the shield body; the door body comprises an inner door and an outer door;

[0009] A synchronous belt, the synchronous belt is installed on the two pulleys; a driving plate is provided on the inner door, and the driving plate is fixedly connected to the synchronous belt;

[0010] A scissors-fork assembly, wherein a first connection portion is provided at one end of the scissors-fork assembly, a second connection portion is provided at the other end of the scissors-fork assembly, and a third connection portion is provided on the scissors-fork assembly, and the third connection portion is located between the first connection portion and the second connection portion; the first connection portion is fixedly connected to the shield body, the second connection portion is fixedly connected to the inner door, and the third connection portion is fixedly connected to the outer door.

[0011] As a preferred technical solution, the number of the door bodies is two, the two door bodies are symmetrically arranged, and the two inner doors are located between the two outer doors.

[0012] As a preferred technical solution, the synchronous belt forms a first section and a second section arranged in parallel between the two pulleys, and the driving plates on the two inner doors are respectively fixed to the first section and the second section.

[0013] As a preferred technical solution, the two door bodies are located between the two pulleys.

[0014] As a preferred technical solution, the inner door and the outer door are located in different planes.

[0015] As a preferred technical solution, the driving component is a motor, the motor is fixed to the shield body, and the output shaft of the motor is connected to the pulley through a gear box;

[0016] And / or, the number of the driving components is two, and the driving components correspond to the pulleys one by one.

[0017] As a preferred technical solution, the first connecting portion, the second connecting portion and the third connecting portion are all located on the axis of the scissor assembly;

[0018] And / or, the third connection portion is located in the middle of the first connection portion and the second connection portion.

[0019] As a preferred technical solution, a position detection component for detecting the position of the door body is provided on the shield body.

[0020] As a preferred technical solution, the telescopic direction of the scissor assembly is parallel to the center line of the two pulleys.

[0021] As a preferred technical solution, the inner door and the outer door are both provided with rollers, and the shield body is provided with guide rails matching the rollers;

[0022] And / or, the inner door and the outer door are both L-shaped.

[0023] The beneficial effects of the utility model are as follows:

[0024] 1. The inner door of the utility model is fixedly connected to the synchronous belt through a driving plate. When the driving pulley of the driving assembly rotates, the movement of the synchronous belt can drive the inner door to move. At the same time, one end of the scissor assembly is fixed to the shield body by using the first connecting part on the scissor assembly, and the second connecting part on the scissor assembly is fixedly connected to the inner door so that the movement of the inner door can drive the extension and retraction of the scissor assembly. The third connecting part on the scissor assembly is fixedly connected to the outer door so that the outer door can move along with the extension and retraction of the scissor assembly. The inner door and the outer door can be driven to move along with the synchronous belt movement, and the movement amplitudes of the inner door and the outer door are in a fixed ratio, which ensures that the door body is opened and closed smoothly and stably, and effectively increases the door opening space.

[0025] 2. The two inner doors of the two door bodies of the utility model are respectively fixed on the first section and the second section of the synchronous belt through the driving plate. When the synchronous belt moves, the two door bodies move toward or away from each other at the same time to realize the opening and closing of the door bodies and improve the opening and closing speed of the door bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a CNC machine tool sliding door of the utility model;

[0027] Figure 2 for Figure 1 A magnified image of area A;

[0028] Figure 3 for Figure 1 A schematic diagram of the structure from another perspective;

[0029] Figure 4 for Figure 1 Bottom view of

[0030] Figure 5 for Figure 1 Side view of.

[0031] In the figure: 1-shield body, 11-pulley, 12-drive assembly, 2-door body, 21-inner door, 22-outer door, 23-drive plate, 3-synchronous belt, 31-first section, 32-second section, 4-scissors assembly, 41-first connecting part, 42-second connecting part, 43-third connecting part. DETAILED DESCRIPTION

[0032] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0033] Please refer to Figure 1-Figure 5, is an embodiment of a CNC machine tool sliding door provided by the utility model, comprising a shield body 1, a door body 2 arranged on the shield body 1, the door body 2 comprising an inner door 21 and an outer door 22, both of which can move relative to the shield body 1; two pulleys 11 are arranged on the shield body 1, a synchronous belt 3 is installed on the two pulleys 11 and can move around the two pulleys 11, and the inner door 21 is fixedly connected to the synchronous belt 3 through a driving plate 23; one end of the scissor assembly 4 is fixed to the shield body 1 through a first connecting portion 41, and the other end of the scissor assembly 4 is connected to the inner door 21 through a second connecting portion 42 The scissors-type assembly 4 is fixedly connected and has a third connection portion 43 fixedly connected to the outer door 22, and the third connection portion 43 is located between the first connection portion 41 and the second connection portion 42; the pulley 11 is connected to a driving assembly 12 for driving it to rotate, and when the driving assembly 12 drives the pulley 11 to rotate, it can drive the synchronous belt 3 to move, and the movement of the synchronous belt 3 can drive the inner door 21 to move through the driving plate 23, and the movement of the inner door 21 can make the scissors-type assembly 4 extend and retract accordingly, and the extension and retraction of the scissors-type assembly 4 can make the outer door 22 move accordingly, so that the door body 2 can be opened and closed smoothly and stably, and the door opening space is effectively increased.

[0034] For clarification, please refer to Figure 1-Figure 4 The scissors-fork assembly 4 is composed of a number of connecting rods that are regularly crossed and rotatably connected. The specific structure of the scissors-fork assembly 4 is common knowledge in the field and will not be elaborated here. Furthermore, the telescopic direction of the scissors-fork assembly 4 should be parallel to the center line of the two pulleys 11, that is, parallel to the moving direction of the first section 31 and the second section 32 of the synchronous belt 3. While the scissors-fork assembly 4 drives the inner door 21 and the outer door 22 to move synchronously, the scissors-fork assembly 4 also has a guiding function to ensure that the inner door 21 and the outer door 22 move smoothly.

[0035] In this embodiment, please refer to Figure 1-Figure 5 The door bodies 2 are provided with two, the two door bodies 2 are symmetrically arranged, the two inner doors 21 are located between the two outer doors 22, and the synchronous movement of the two door bodies 2 can further improve the opening and closing speed and the door opening space of the door bodies 2; specifically, when closing the door, the side edges of the two inner doors 21 should fit each other, effectively sealing and protecting the machine tool to prevent foreign objects from entering; further, the synchronous belt 3 forms a first section 31 and a second section 32 arranged in parallel between the two pulleys 11, and the driving plates 23 on the two inner doors 21 are respectively fixed on the first section 31 and the second section 32. When the synchronous belt 3 moves, the moving directions of the first section 31 and the second section 32 are opposite, so that the two door bodies 2 move toward or away from each other at the same time to realize the opening and closing of the door bodies 2, that is, the synchronous movement of the two door bodies 2 can be realized by a synchronous belt 3.

[0036] Based on the above examples, please refer to Figure 1 , Figure 3and Figure 4 , both door bodies 2 should be located between the two pulleys 11, and the two pulleys 11 will not limit the movement of the door bodies 2, ensuring that the two door bodies 2 can be opened to the maximum extent, thereby increasing the door opening space.

[0037] It should be noted that the inner door 21, the outer door 22 and the shield body 1 should be located in different planes, and the inner door 21, the outer door 22 and the shield body 1 will not interfere with each other. When opening the door, the inner door 21, the outer door 22 and the shield body 1 can be staggered to ensure that the door body 2 opens smoothly while having a larger door opening space.

[0038] In this embodiment, please refer to Figure 1-Figure 4 The driving component 12 is preferably configured as a motor, which is fixed on the shield body 1. The output shaft of the motor is connected to the pulley 11 through a gear box. The rotation of the output shaft of the motor can drive the pulley 11 to rotate; further, the driving component 12 is preferably configured as two, and the driving components 12 correspond to the pulleys 11 one by one. The two driving components 12 can synchronously drive the two pulleys 11 to rotate, which can increase the driving torque on the one hand, and improve the stability of the synchronous belt 3 during movement on the other hand, thereby ensuring the smooth opening of the door body 2; in other embodiments, only one driving component 12 can be provided, so as to be able to smoothly drive the synchronous belt 3 to move.

[0039] In this embodiment, please refer to Figure 1-Figure 4 , the first connection part 41, the second connection part 42 and the third connection part 43 are all located on the axis of the scissor assembly 4. When the scissor assembly 4 is extended or retracted, the first connection part 41, the second connection part 42 and the third connection part 43 all move along the axis of the scissor assembly 4 to ensure that the inner door 21 and the outer door 22 move stably therewith; further, the third connection part 43 is located in the middle of the first connection part 41 and the second connection part 42, and the movement amplitude ratio between the inner door 21 and the outer door 22 is 2:1, ensuring that when the door is opened, the inner door 21 and the outer door 22 are just in the most suitable opening position; specifically, the scissor assembly 4 includes two connected diamond structures, and the third connection part 43 is located at the connection point of the two diamond structures; in other embodiments, the third connection part 43 may not be located in the middle of the first connection part 41 and the second connection part 42. By changing the relative position of the third connection part 43, the movement amplitude ratio between the inner door 21 and the outer door 22 can be conveniently adjusted to ensure that the door body 2 has sufficient door opening space.

[0040] It should be noted that the shield body 1 is preferably provided with a position detection component for detecting the position of the door body 2. The position detection component can measure the real-time positions of the inner door 21 and the outer door 22, so that the opening and closing state of the door body 2 can be accurately determined; specifically, the position detection component is preferably set as a limit switch.

[0041] In this embodiment, please refer to Figure 1 and Figure 3 The inner door 21 and the outer door 22 are preferably L-shaped, that is, the inner door 21 and the outer door 22 are each surrounded by a horizontal plate and a vertical plate. When the door is opened, the inner door 21 and the outer door 22 of the L-shaped structure can further increase the door opening space; in other embodiments, the inner door 21 and the outer door 22 can also be only a horizontal plate or a vertical plate, so that large workpieces can easily enter the machine tool when the door is opened.

[0042] Furthermore, the inner door 21 and the outer door 22 are preferably provided with rollers, and the shield body 1 is provided with guide rails matching the rollers. The rollers and the guide rails can guide and support the inner door 21 and the outer door 22, ensuring that the inner door 21 and the outer door 22 can move smoothly and stably relative to the shield body 1.

[0043] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A CNC machine tool sliding door, characterized in that: include: A shield body (1), wherein the shield body (1) is provided with two pulleys (11), and the pulleys (11) are connected to a driving assembly (12) for driving the pulleys to rotate; A door body (2), the door body (2) being movably arranged on the shield body (1); the door body (2) comprising an inner door (21) and an outer door (22); A synchronous belt (3), the synchronous belt (3) being mounted on the two pulleys (11); a driving plate (23) being provided on the inner door (21), the driving plate (23) being fixedly connected to the synchronous belt (3); A scissor-type assembly (4), wherein a first connection portion (41) is provided at one end of the scissor-type assembly (4), a second connection portion (42) is provided at the other end of the scissor-type assembly (4), and a third connection portion (43) is provided on the scissor-type assembly (4), wherein the third connection portion (43) is located between the first connection portion (41) and the second connection portion (42); the first connection portion (41) is fixedly connected to the shield body (1), the second connection portion (42) is fixedly connected to the inner door (21), and the third connection portion (43) is fixedly connected to the outer door (22).

2. A CNC machine tool sliding door according to claim 1, characterized in that: The door bodies (2) are provided in two numbers, the two door bodies (2) are symmetrically arranged, and the two inner doors (21) are located between the two outer doors (22).

3. A CNC machine tool sliding door according to claim 2, characterized in that: The synchronous belt (3) forms a first section (31) and a second section (32) arranged in parallel between the two pulleys (11), and the driving plates (23) on the two inner doors (21) are respectively fixed to the first section (31) and the second section (32).

4. A CNC machine tool sliding door according to claim 2, characterized in that: The two door bodies (2) are both located between the two pulleys (11).

5. A CNC machine tool sliding door according to claim 1 or 2, characterized in that: The inner door (21) and the outer door (22) are located in different planes.

6. The CNC machine tool sliding door according to claim 1, characterized in that: The driving component (12) is configured as a motor, the motor is fixed to the shield body (1), and the output shaft of the motor is transmission-connected to the pulley (11) via a gear box; And / or, the number of the driving components (12) is two, and the driving components (12) correspond one to one to the pulleys (11).

7. The CNC machine tool sliding door according to claim 1, characterized in that: The first connecting portion (41), the second connecting portion (42) and the third connecting portion (43) are all located on the axis of the scissor assembly (4); And / or, the third connecting portion (43) is located in the middle of the first connecting portion (41) and the second connecting portion (42).

8. The CNC machine tool sliding door according to claim 1, characterized in that: The shield body (1) is provided with a position detection component for detecting the position of the door body (2).

9. The CNC machine tool sliding door according to claim 1, characterized in that: The telescopic direction of the scissor assembly (4) is parallel to the center line of the two pulleys (11).

10. The CNC machine tool sliding door according to claim 1, characterized in that: The inner door (21) and the outer door (22) are both provided with rollers, and the shield body (1) is provided with guide rails matching the rollers; And / or, the inner door (21) and the outer door (22) are both L-shaped.

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