A safety door for a laser cutting machine

Abstract

The utility model relates to a protective door of laser cutting machine mainly includes frame and door body, be provided with opening on the frame, be provided with door body at the opening, interval setting has two guide rails on the frame, is provided with the slider assembly of sliding fit with guide rail on each guide rail, the both ends of door body are linked with adjacent slider assembly respectively, still be provided with cylinder mounting platform on the frame, the inboard of door body is provided with cylinder connecting platform linked with door body, cylinder mounting platform links with one end of the embrace cylinder, the piston rod of embrace cylinder links with cylinder connecting platform on the door body through connecting piece, be provided with the limiting crossbeam on the frame, the outside of door body is provided with the limiting block linked with door body, when limiting block and limiting crossbeam contact, door body cannot continue to move down. It is favorable to the personal safety of maintenance personnel and protects.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, and in particular to the protective door of a laser cutting machine. Background Technology

[0002] A laser cutting machine is a machine used for laser cutting sheet metal and other materials. A laser cutting machine generally has a loading station and a cutting station. A frame is installed at the cutting station, and the working area is inside the frame. An opening in the frame allows the platform to enter and exit, on which the sheet metal to be cut is placed. A door is usually installed at the opening of the frame. When cutting the sheet metal, the door lowers to the target height. After cutting, the door rises, and the platform moves from the cutting station through the opening in the frame to the loading station.

[0003] In existing technology, the mechanism used to drive the door is a common cylinder, which drives the door to rise and fall. However, during maintenance, if the power or gas is cut off, the door may move unexpectedly downwards under the influence of gravity, posing a safety hazard to maintenance personnel. Utility Model Content

[0004] Based on this, a protective door for a laser cutting machine is provided. This is beneficial for protecting the personal safety of maintenance personnel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A protective door for a laser cutting machine includes a frame and a door body. The frame has an opening, and the door body is positioned at the opening.

[0007] The frame is provided with two guide rails spaced apart, and each guide rail is provided with a slider assembly that slides with the guide rail. The two ends of the door are respectively connected to the adjacent slider assembly.

[0008] The frame is also equipped with a cylinder mounting platform, and the inner side of the door is equipped with a cylinder connecting platform connected to the door. The cylinder mounting platform is connected to one end of the clamping cylinder, and the piston rod of the clamping cylinder is connected to the cylinder connecting platform on the door through a connector.

[0009] The frame is provided with a limiting beam, and the outside of the door is provided with a limiting block connected to the door. When the limiting block comes into contact with the limiting beam, the door cannot continue to move downward.

[0010] In one embodiment, the cylinder mounting platform is positioned at the middle of the transverse direction of the frame.

[0011] In one embodiment, the sidewall of the door is provided with a plurality of transverse reinforcing ribs and a plurality of longitudinal reinforcing ribs.

[0012] In one embodiment, side brushes are provided on both sides of the door, extending from the middle of the door in the longitudinal direction to the bottom of the door.

[0013] In one embodiment, a bottom brush is provided at the lower end of the door body, and the bottom brush is arranged horizontally along the door body.

[0014] In one embodiment, a roller-type limit switch is provided on the frame, and an impact member is provided on one side of the door body for impacting the roller-type limit switch.

[0015] In one embodiment, a sensor is provided on the frame for detecting the position of the door.

[0016] In one embodiment, the limiting block is a rubber block, which is connected to a mounting frame that is connected to the door body.

[0017] The beneficial effects of this application are as follows:

[0018] The protective door of this application is driven by a clamping cylinder. The clamping cylinder has a clamping mechanism that releases the piston rod when air is supplied, and automatically clamps the piston rod after air supply is cut off, preventing it from moving. Simultaneously, this application also includes a limiting beam on the frame and a limiting block on the door. When the limiting block impacts the limiting beam, the door cannot move further downwards. Through these methods, it is ensured that even if power and air supply are cut off during maintenance, the door will not fall downwards due to gravity and injure the maintenance personnel. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the protective door of a laser cutting machine according to an embodiment of this application.

[0020] Figure 2 for Figure 1 An enlarged view of region A.

[0021] Figure 3 This is a schematic diagram showing a limit block installed on the outer side of a door according to an embodiment of this application.

[0022] Figure 4 for Figure 3 A magnified view of region B.

[0023] Figure 5 This is a schematic diagram of a roller-type limit switch provided on the frame of an embodiment of this application.

[0024] Figure 6 for Figure 5 A magnified view of region C.

[0025] in:

[0026] 101. Frame; 102. Door body; 103. Guide rail; 104. Slider assembly; 105. Cylinder mounting platform; 106. Cylinder connecting platform; 107. Clamping cylinder; 1071. Piston rod; 108. Limiting beam; 109. Limiting block; 110. Transverse reinforcing rib; 111. Longitudinal reinforcing rib; 112. Side brush; 113. Bottom brush; 114. Impact component; 115. Roller-type limit switch; 116. Connecting plate; 117. Mounting bracket. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 and Figure 3 As shown, an embodiment of this application provides a protective door for a laser cutting machine. The protective door includes a frame 101 and a door body 102. The frame 101 has an opening, and the door body 102 is located at the opening. Two guide rails 103 are spaced apart on the frame 101, and each guide rail 103 has a slider assembly 104 that slides with it. For example, two slider assemblies 104 can be provided on each guide rail 103. The door body 102 is generally machined from sheet metal of approximately 1.5mm thickness. Both ends of the door body 102 are connected to the adjacent slider assembly 104 via connecting plates 116 and bolts, respectively. A cylinder mounting platform 105 is also provided on the frame 101. A cylinder connecting platform 106 connected to the door body 102 is provided on the inner side of the door body 102. The cylinder mounting platform 105 is connected to one end of a clamping cylinder 107. The piston rod 1071 of the clamping cylinder 107 is connected to the cylinder connecting platform 106 on the door body 102 via a connector. Existing cylinder connection connectors can be used for this connector. A limiting beam 108 is provided on the frame 101. A limiting block 109 connected to the door body 102 is provided on the outer side of the door body 102. When the limiting block 109 impacts the limiting beam 108, the door body 102 cannot continue to move downwards.

[0029] Specifically, the aforementioned clamping cylinder 107 is used to drive the door body 102 to rise and fall along the guide rail 103. The clamping cylinder 107 is an existing type of cylinder with a clamping mechanism. When the air supply is open, the clamping mechanism releases the piston rod 1071, allowing it to move freely. At this time, the door body 102 can rise or fall under the drive of the piston rod 1071. When the air supply is cut off, the clamping mechanism clamps the piston rod 1071, preventing it from moving, and thus fixing the door body 102. Simultaneously, a limiting beam 108 is provided on the frame 101, and a limiting block 109 connected to the door body 102 is provided on the outer side of the door body 102. When the limiting block 109 contacts the limiting beam 108, the door body 102 cannot continue to move downwards. For example, after the door 102 descends to the target position, the limiting block 109 contacts the limiting beam 108. The limiting beam 108 acts as a stop for the limiting block 109, preventing it from moving further downward. Since the limiting block 109 is installed on the door 102, the door 102 also cannot move further downward. As can be seen from the above description, maintenance personnel can effectively avoid being injured by the door 102 during maintenance operations.

[0030] In one embodiment, such as Figure 1 As shown, the cylinder mounting platform 105 is positioned in the middle of the transverse direction of the frame 101. This ensures that the door 102 is subjected to even force, resulting in smoother lifting and lowering.

[0031] In one embodiment, such as Figure 1 As shown, the side wall of the door 102 is provided with multiple transverse reinforcing ribs 110 and multiple longitudinal reinforcing ribs 111. The transverse reinforcing ribs 110 and longitudinal reinforcing ribs 111 help to improve the structural strength of the door 102 and make the door 102 less prone to deformation.

[0032] In one embodiment, such as Figure 1 As shown, side brushes 112 are respectively provided on both sides of the door body 102, and the side brushes 112 extend from the middle of the longitudinal direction of the door body 102 to the bottom of the door body 102. The side brushes 112 are used to play a certain sealing role, that is, to seal the gap between the door body 102 and the frame 101, so as to reduce the leakage of dust and other debris generated during the cutting of the board through the gap.

[0033] In one embodiment, such as Figure 1 As shown, a bottom brush 113 is provided at the lower end of the door body 102, and the bottom brush 113 is arranged horizontally along the door body 102. The bottom brush 113 is used to block dust and other debris generated during the cutting of the board.

[0034] In one embodiment, such as Figure 5 and Figure 6As shown, a roller-type limit switch 115 is provided on the frame 101, such as... Figure 2 As shown, an impact member 114 is provided on one side of the door body 102, and the impact member 114 is used to impact the roller type limit switch 115.

[0035] Specifically, the aforementioned impact member 114 can be mounted on the slider assembly 104 by bolts.

[0036] Specifically, the roller-type limit switch 115 is used to determine whether the door 102 has descended to the target position. When the door 102 descends to the target position, the impact member 114 on one side of the door 102 will hit the roller of the roller-type limit switch 115, causing the roller-type limit switch 115 to be triggered, so that the corresponding control system will no longer drive the aforementioned clamping cylinder 107 to continue to move the door 102 downward.

[0037] Similarly, a photoelectric sensor can also be installed on the frame 101 to detect the position of the door 102. That is, when the photoelectric sensor detects that the door 102 has moved to the target position, it generates a signal to the control system, and the control system stops driving the clamping cylinder 107 to continue moving the door 102 downward.

[0038] In one embodiment, such as Figure 3 and Figure 4 As shown, the limiting block 109 is a rubber block, and the limiting block 109 is connected to the mounting bracket 117, which is connected to the door body 102.

[0039] Specifically, the limit block 109 is provided with studs and nuts, which are used to connect the limit block 109 to the mounting bracket 117. The mounting bracket 117 is fixed to the door body 102 with bolts.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A protective door for a laser cutting machine, characterized in that, It includes a frame and a door, wherein the frame has an opening, and the door is disposed at the opening. The frame is provided with two guide rails spaced apart, and each guide rail is provided with a slider assembly that slides with the guide rail. The two ends of the door are respectively connected to the adjacent slider assembly. The frame is also equipped with a cylinder mounting platform, and the inner side of the door is equipped with a cylinder connecting platform connected to the door. The cylinder mounting platform is connected to one end of the clamping cylinder, and the piston rod of the clamping cylinder is connected to the cylinder connecting platform on the door through a connector. The frame is provided with a limiting beam, and the outside of the door is provided with a limiting block connected to the door. When the limiting block comes into contact with the limiting beam, the door cannot continue to move downward.

2. The protective door of the laser cutting machine according to claim 1, characterized in that, The cylinder mounting platform is located in the middle of the transverse direction of the frame.

3. The protective door of the laser cutting machine according to claim 1, characterized in that, The side wall of the door is provided with multiple horizontal reinforcing ribs and multiple vertical reinforcing ribs.

4. The protective door of the laser cutting machine according to claim 1, characterized in that, Side brushes are provided on both sides of the door, extending from the middle of the door's longitudinal direction to the bottom of the door.

5. The protective door of the laser cutting machine according to claim 4, characterized in that, A bottom brush is provided at the lower end of the door body, and the bottom brush is arranged horizontally along the door body.

6. The protective door of the laser cutting machine according to claim 1, characterized in that, A roller-type limit switch is provided on the frame, and an impact member is provided on one side of the door body. The impact member is used to strike the roller-type limit switch.

7. The protective door of the laser cutting machine according to claim 1, characterized in that, The frame is equipped with sensors for detecting the position of the door.

8. The protective door of the laser cutting machine according to claim 1, characterized in that, The limiting block is a rubber block, which is connected to the mounting frame, and the mounting frame is connected to the door body.

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