A cylinder opening and closing door device

Abstract

The utility model relates to a kind of cylinder opening and closing door devices, including the frame being installed on numerical control machine tool;Rotary connection has a rotating shaft between the left and right sides of the inner wall of the frame, the outside of the rotating shaft is provided with a protection assembly;The right side of the frame is recessed to the left and forms an installation chamber, a fixed ring is fixedly sleeved on the outside of the rotating shaft, the fixed ring is located inside the installation chamber, a top sheet is integrally formed on the outside of the fixed ring, a support block is also provided on the outside of the fixed ring, a torsion spring is sleeved on the outside of the fixed ring.The cylinder opening and closing door device, by cylinder drive protection assembly rotation, realize the closure of numerical control machine tool feeding opening, form closed protective barrier, can effectively block the splashing of cutting fluid and iron filings, protect the safety of operator, avoid iron filings scratch skin, injure eye and other injuries, simultaneously prevent cutting fluid contact human body and cause health problem.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a cylinder-operated door opening and closing device. Background Technology

[0002] In the field of modern machining, CNC machine tools, with their high precision and high efficiency, have become key equipment in metal cutting. When CNC machine tools perform cutting operations on workpieces, the use of cutting fluid is essential to reduce frictional heat between the tool and the workpiece, extend tool life, and improve the surface finish. At the same time, a large amount of metal chips are generated during the cutting process.

[0003] However, most current CNC machine tools have structural design flaws that compromise safety. During operation, the cutting tool and workpiece rotate at high speed. The cutting fluid, under high-pressure jetting, comes into contact with these rotating components, generating a powerful centrifugal force that causes the fluid to atomize and splash outwards. Simultaneously, the metal chips cut off are also propelled at high speeds into the surrounding space due to the high-speed rotation of the components.

[0004] The splashing of cutting fluid and metal filings can cause numerous serious problems. From a safety perspective, splashing metal filings are like high-speed projectiles, easily causing bodily injury to machine tool operators, such as skin abrasions and eye injuries. If splashed cutting fluid accidentally comes into contact with the human body, it may cause skin allergies and other health problems. Regarding the machining environment, the disorderly splashing of cutting fluid and metal filings will leave the working area around the machine tool covered with stains and debris, increasing cleaning difficulty, deteriorating the working environment, and potentially damaging nearby electrical equipment, affecting its normal operation. As for the machining process itself, splashed metal filings may accidentally fall onto the workpiece or cutting tool, leading to decreased machining accuracy, or even causing tool breakage, workpiece scrap, etc., reducing production efficiency and increasing production costs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cylinder-driven door opening and closing device, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cylinder-driven door opening and closing device, comprising a frame mounted on a CNC machine tool;

[0007] A pivot is rotatably connected between the left and right sides of the inner wall of the frame, and a protective component is provided on the outside of the pivot.

[0008] The right side of the frame is recessed to the left to form an installation chamber. A fixing ring is fixedly sleeved on the outside of the rotating shaft. The fixing ring is located inside the installation chamber. A top piece is integrally formed on the outside of the fixing ring. A support block is also provided on the outside of the fixing ring.

[0009] A torsion spring is sleeved on the outside of the fixing ring. One end of the torsion spring abuts against the inner top wall of the mounting chamber, and the other end of the torsion spring is attached to the support block.

[0010] A cylinder is inclinedly arranged inside the mounting chamber, and a lifting member is provided at the output end of the cylinder, which is attached to the lower surface of the top plate.

[0011] Furthermore, the lifting member is hemispherical in shape, and the cross-sectional shape of the side of the top plate is arc-shaped.

[0012] Furthermore, the protective assembly includes an upper protective plate, a connecting assembly, and a lower protective plate;

[0013] The upper guard plate is fixed to the outside of the rotating shaft, and the lower guard plate is detachably connected to the upper guard plate via a connecting assembly.

[0014] Furthermore, both the upper guard plate and the lower guard plate are attached to the left and right sides of the inner wall of the frame.

[0015] Furthermore, the connecting assembly includes a U-shaped plate installed at the bottom of the upper guard plate, a lower guard plate inserted inside the U-shaped plate, and a fastening bolt threadedly connected to the front side of the U-shaped plate, one end of the fastening bolt abutting against the lower guard plate.

[0016] Furthermore, a limiting rib is provided on both the front and rear sides of the inner wall of the U-shaped plate along the length extension direction, and grooves adapted to the limiting ribs are provided on both the front and rear sides of the lower guard plate.

[0017] Furthermore, the lower guard plate is made of plastic sheeting.

[0018] Furthermore, a buffer layer made of rubber is provided on the rear side of the lower guard plate.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] 1. This cylinder-driven door opening and closing device uses a cylinder to drive the protective components to rotate, thereby closing the feed port on the CNC machine tool and forming a closed protective barrier. This effectively blocks the splashing of cutting fluid and iron filings, protecting the safety of operators and preventing injuries such as skin scratches and eye irritation from iron filings. It also prevents cutting fluid from contacting the human body and causing health problems.

[0021] 2. The cylinder opening and closing door device has an upper guard plate and a lower guard plate connected by a detachable connecting component, which facilitates the replacement and cleaning of the lower guard plate and improves the maintenance convenience of the device. The buffer layer on the rear side of the lower guard plate is made of rubber, which can absorb the impact force when iron filings fly, reduce noise, reduce damage to the lower guard plate by iron filings, and extend the service life of the lower guard plate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the rotating shaft and the upper guard plate of this utility model;

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the upper and lower guard plates of this utility model;

[0026] Figure 5 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0027] In the diagram: 1. Frame; 2. Shaft; 3. Fixing ring; 4. Top plate; 5. Support block; 6. Torsion spring; 7. Cylinder; 8. Lifting component; 9. Upper guard plate; 10. Lower guard plate; 11. U-shaped plate; 12. Fastening bolt; 13. Limiting rib; 14. Buffer layer. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-5 This embodiment of a cylinder-driven door opening and closing device includes a frame 1, which is fixedly mounted on a CNC machine tool as the basic support structure for the entire device. A rotating shaft 2 is rotatably connected between the left and right sides of the inner wall of the frame 1, and a protective assembly is provided on the outer side of the rotating shaft 2. The protective assembly includes an upper protective plate 9, a connecting assembly, and a lower protective plate 10. The upper protective plate 9 is fixed to the outer side of the rotating shaft 2, and the lower protective plate 10 is detachably connected to the upper protective plate 9 through the connecting assembly. Both the upper protective plate 9 and the lower protective plate 10 are fitted between the left and right sides of the inner wall of the frame 1.

[0030] Furthermore, the right side of frame 1 is recessed to the left to form an installation chamber. A fixing ring 3 is fixedly sleeved on the outside of the rotating shaft 2, and the fixing ring 3 is located inside the installation chamber. A top piece 4 is integrally formed on the outside of the fixing ring 3, and a support block 5 is also provided on the outside of the fixing ring 3.

[0031] A torsion spring 6 is sleeved on the outer side of the fixing ring 3. One end of the torsion spring 6 abuts against the inner top wall of the mounting chamber, and the other end is attached to the support block 5. A cylinder 7 is inclinedly arranged inside the mounting chamber. A lifting member 8 is provided at the output end of the cylinder 7. The lifting member 8 is attached to the lower surface of the top plate 4, and the shape of the lifting member 8 is hemispherical. The shape of the cross-section of the side of the top plate 4 is arc-shaped.

[0032] In actual setup, when cylinder 7 extends, lifting component 8 pushes top plate 4, causing fixed ring 3 to rotate counterclockwise. One end of torsion spring 6 abuts against the inner top wall of the mounting chamber, and the other end adheres to support block 5, providing a reset force for the rotation of fixed ring 3, so that the protective component can automatically reset when cylinder 7 retracts.

[0033] In actual use, when the cylinder 7 extends and pushes the fixed ring 3 to rotate counterclockwise, the torsion spring 6 is compressed and stores elastic potential energy; when the cylinder 7 retracts, the torsion spring 6 releases elastic potential energy, pushes the fixed ring 3 to rotate clockwise, so that the protective component automatically resets, realizes the automatic closing function of the opening and closing door, and improves the ease of use of the device and the reliability of protection.

[0034] Furthermore, when cylinder 7 extends, lifting component 8 pushes top plate 4, causing fixed ring 3 and rotating shaft 2 to rotate. When rotating shaft 2 rotates, upper guard plate 9 rotates accordingly, forming a protective barrier together with lower guard plate 10 to block the splashing of cutting fluid and iron filings, protecting the safety of operators and the cleanliness of the processing environment. When cylinder 7 retracts, the protective components automatically reset under the action of torsion spring 6, opening the processing area for easy loading and unloading.

[0035] In more detail, the connecting assembly includes a U-shaped plate 11 installed at the bottom of the upper guard plate 9, and a lower guard plate 10 inserted inside the U-shaped plate 11. A fastening bolt 12 is threaded onto the front side of the U-shaped plate 11, with one end of the fastening bolt 12 abutting against the lower guard plate 10. Simultaneously, a limiting rib 13 is provided on both the front and rear sides of the inner wall of the U-shaped plate 11 along its length extension direction, and grooves matching the limiting ribs 13 are provided on both the front and rear sides of the lower guard plate 10.

[0036] In actual use, when the lower guard plate 10 is damaged due to long-term use or needs cleaning, it can be easily disassembled for replacement or cleaning, improving the convenience of device maintenance. At the same time, the setting of the limiting rib 13 and the groove can ensure that the lower guard plate 10 is accurately installed in the U-shaped plate 11, preventing the lower guard plate 10 from shifting during use and ensuring the protective effect.

[0037] In addition, the lower guard plate 10 is made of plastic cloth, and a buffer layer 14 is provided on its rear side, which is made of rubber.

[0038] In actual operation, when metal chips splash onto the lower guard plate 10, the buffer layer 14 absorbs the impact force of the metal chips, reducing damage to the lower guard plate 10 and extending its service life. Simultaneously, the buffer layer 14 also reduces noise generated by metal chip splashing, improving the processing environment.

[0039] The working principle of the above embodiments is as follows:

[0040] (1) When it is necessary to close the protective assembly to block the splashing of cutting fluid and iron filings, the output end of the cylinder 7 extends, driving the lifting member 8 to move upward. Since the lifting member 8 is attached to the lower surface of the top plate 4, and the top plate 4 is integrally formed on the outside of the fixing ring 3, the lifting member 8 pushes the top plate 4, causing the fixing ring 3 to rotate counterclockwise. The fixing ring 3 is fixedly sleeved on the outside of the rotating shaft 2, so the rotation of the fixing ring 3 drives the rotating shaft 2 to rotate counterclockwise together. The outer side of the rotating shaft 2 is fixed with an upper guard plate 9, which is connected to the lower guard plate 10 through a connecting assembly. Therefore, the rotation of the rotating shaft 2 drives the upper guard plate 9 and the lower guard plate 10 to rotate counterclockwise together. When the lower guard plate 10 in the protective assembly rotates to a vertical state, it can be closed. The loading port of the CNC lathe closes, forming a closed protective barrier that effectively blocks the splashing of cutting fluid and iron filings. When the machining is completed and the loading port needs to be opened for loading or unloading, the output end of cylinder 7 retracts, and the lifting component 8 no longer applies a pushing force to the top plate 4. At this time, the torsion spring 6, which is sleeved on the outside of the fixed ring 3, begins to function. One end of the torsion spring 6 abuts against the inner top wall of the mounting chamber, and the other end is attached to the support block 5. When the fixed ring 3 rotates counterclockwise, the torsion spring 6 is compressed and stores elastic potential energy. When cylinder 7 retracts, the torsion spring 6 releases elastic potential energy, pushing the fixed ring 3 to rotate clockwise, which in turn drives the rotating shaft 2 and the protective component to rotate clockwise together, so that the protective component is reset and the loading port is opened.

[0041] (2) When the lower guard plate 10 is damaged due to long-term use or needs to be cleaned, it needs to be replaced. First, loosen the fastening bolts 12 to release the fixation of the lower guard plate 10. Then, since the lower guard plate 10 is inserted inside the U-shaped plate 11, and there are limiting ribs 13 on the front and back sides of the inner wall of the U-shaped plate 11, and the front and back sides of the lower guard plate 10 have grooves that match the limiting ribs 13, the lower guard plate 10 can be pushed out to the left from the inside of the U-shaped plate 11. Next, insert the new lower guard plate 10 from the left side of the U-shaped plate 11, so that the grooves on the front and back sides of the lower guard plate 10 are aligned with the limiting ribs 13 on the inner wall of the U-shaped plate 11, to ensure that the installation position of the lower guard plate 10 is accurate. Finally, tighten the fastening bolts 12 so that one end of the fastening bolts 12 abuts against the lower guard plate 10 to fix the lower guard plate 10 and complete the replacement.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cylinder-operated door opening and closing device, characterized in that: Including the frame (1) installed on the CNC machine tool; A rotating shaft (2) is rotatably connected between the left and right sides of the inner wall of the frame (1), and a protective component is provided on the outside of the rotating shaft (2); The right side of the frame (1) is recessed to the left to form an installation chamber. A fixing ring (3) is fixedly sleeved on the outside of the rotating shaft (2). The fixing ring (3) is located inside the installation chamber. A top piece (4) is integrally formed on the outside of the fixing ring (3). A support block (5) is also provided on the outside of the fixing ring (3). A torsion spring (6) is sleeved on the outside of the fixing ring (3). One end of the torsion spring (6) abuts against the inner top wall of the mounting chamber, and the other end of the torsion spring (6) is attached to the support block (5). A cylinder (7) is inclinedly arranged inside the mounting chamber, and a lifting member (8) is provided at the output end of the cylinder (7). The lifting member (8) is attached to the lower surface of the top plate (4).

2. The cylinder-operated door opening and closing device according to claim 1, characterized in that: The lifting member (8) is hemispherical in shape, and the side cross-section of the top piece (4) is arc-shaped.

3. The cylinder opening and closing door device according to claim 1, characterized in that: The protective assembly includes an upper protective plate (9), a connecting component, and a lower protective plate (10). The upper guard plate (9) is fixed to the outside of the rotating shaft (2), and the lower guard plate (10) is detachably connected to the upper guard plate (9) through a connecting assembly.

4. The cylinder opening and closing door device according to claim 3, characterized in that: The upper guard plate (9) and the lower guard plate (10) are both attached to the left and right sides of the inner wall of the frame (1).

5. A cylinder-operated door opening and closing device according to claim 3, characterized in that: The connecting assembly includes a U-shaped plate (11) installed at the bottom of the upper guard plate (9), and a lower guard plate (10) inserted inside the U-shaped plate (11). A fastening bolt (12) is threadedly connected to the front side of the U-shaped plate (11), and one end of the fastening bolt (12) abuts against the lower guard plate (10).

6. A cylinder-operated door opening and closing device according to claim 5, characterized in that: A limiting rib (13) is provided on both the front and rear sides of the inner wall of the U-shaped plate (11) along the length extension direction, and grooves adapted to the limiting rib (13) are provided on both the front and rear sides of the lower guard plate (10).

7. A cylinder-operated door opening and closing device according to claim 5, characterized in that: The lower guard plate (10) is made of plastic sheeting.

8. A cylinder-operated door opening and closing device according to claim 5, characterized in that: A buffer layer (14) is also provided on the rear side of the lower guard plate (10), and the buffer layer (14) is made of rubber.

Images