High-stability vertical lifting door device for laser cutting machine

Abstract

The utility model relates to a high-stability vertical lifting door device for a laser cutting machine, and belongs to the technical field of laser cutting machines. The lifting door device comprises a lifting door arranged on the front side of a full-surrounding main body of the laser cutting machine, the left side and the right side of the lifting door are connected with the full-surrounding main body of the laser cutting machine through rodless air cylinders correspondingly, and the rodless air cylinders on the two sides of the lifting door are fixed to the full-surrounding main body in the vertical direction. The bottom ends of the left side and the right side of the lifting door are connected with pistons of the rodless air cylinders on the two sides through connecting plates correspondingly. According to the vertical lifting door device, the rodless air cylinder is used as a lifting power device, the occupied space of the lifting device is reduced, and operation is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, and particularly relates to a vertical lifting door device for a laser cutting machine with high stability. Background Art

[0002] In order to improve the safety of the processing process of fiber laser cutting machines and reduce light and smoke pollution, the laser cutting machines basically adopt a fully enclosed structure, and a safety door is arranged on the front side of the main body of the fully enclosed structure. Most of the safety doors of the existing fiber laser cutting machines adopt the way of opening the door by lifting upwards, and a large amount of operating space will be occupied during the use of opening the door by lifting upwards. Some laser cutting machines adopt a lifting safety door, and the lifting structure of the safety door is realized by a motor reducer integrated machine, a transmission shaft, a winch, a steel cable (or through a sprocket chain and other structures), etc., so as to achieve the purpose of lifting and opening and closing the safety door. Although the lifting structure can achieve the effect of lifting the safety door, however, the lifting mechanism has a complex structure, poor stability, and occupies a large amount of upper space and front space of the machine. Summary of the Invention

[0003] In order to solve the problems in the prior art, the utility model patent designs a vertical lifting door device for a laser cutting machine with high stability to solve the problems that the safety door of the existing fiber laser cutting machine occupies too much operating space or the lifting mechanism has a complex structure.

[0004] The technical solution adopted by the utility model is as follows: the lifting door device includes a lifting door arranged on the front side of the fully enclosed main body of the laser cutting machine. The left and right sides of the lifting door are respectively connected with the fully enclosed main body of the laser cutting machine through rodless cylinders. The rodless cylinders on both sides of the lifting door are vertically fixed on the fully enclosed main body. The bottom ends of the left and right sides of the lifting door are respectively connected with the pistons of the rodless cylinders on both sides through connecting plates.

[0005] Further, the upper and lower ends of the rodless cylinder are respectively connected and fixed with the fully enclosed main body through mounting angle seats.

[0006] Further, sealing plates are respectively arranged vertically at the left and right ends of the back side of the lifting door. The sealing plates extend towards the back side of the lifting door. Correspondingly, sealing chutes are respectively arranged vertically on the left and right sides of the fully enclosed main body where the lifting door is located, and sealing strips are arranged along the sealing chutes. The sealing plates at the two ends of the back side of the lifting door are respectively slidably connected in the sealing chutes on both sides.

[0007] Further, a sealing strip is also arranged between the top of the fully enclosed main body and the lifting door.

[0008] Furthermore, a power connection switch of the cutting mechanism of the laser cutting machine is provided on the lower side of the fully enclosed main body for the lifting door. When the lifting door descends to the lowest end, it presses the power connection switch, and at this time, the power supply of the cutting mechanism is turned on.

[0009] Furthermore, an elastic pressing plate is connected to the bottom end of the lifting door. The elastic pressing plate is connected to the bottom end of the lifting door through a spring column, and the outer side of the bottom end of the lifting door is integrally covered with a flexible sheath.

[0010] Furthermore, the middle part of the lifting door is a semi-transparent acrylic window.

[0011] Compared with the prior art, the improvements of a vertical lifting door device for a laser cutting machine with high stability designed by the utility model patent are as follows: both sides of the lifting door are connected to the fully enclosed main body of the laser cutting machine through rodless cylinders to realize the lifting and opening / closing of the lifting door. Compared with the traditional cylinder, the rodless cylinder omits the structure of the rod part, simplifies the overall design, reduces the number and weight of parts, and reduces the space occupied by the lifting device; due to the working principle of the rodless cylinder, its movement trajectory is relatively simple and has higher precision, making the movement more stable. Moreover, the rodless cylinder is a non-contact pneumatic component, there is no contact between the piston rod and the cylinder, so it is not easy to wear and damage, and has good sealing performance and service life; sealing plates are respectively arranged on both sides of the back of the lifting door, and two sealing chutes of the fully enclosed main body are used to realize the sealing of both sides of the lifting door. A sealing strip is also arranged between the top of the fully enclosed main body and the lifting door to realize the sealing of the upper side of the lifting door; an elastic pressing plate is arranged at the bottom end of the lifting door and covered with a flexible sheath to form a buffer for the descent of the lifting door, avoiding hard collision with the rodless cylinder when the lifting door descends to the bottom end. In addition, a power connection switch of the cutting mechanism is provided on the lower side of the fully enclosed main body for the lifting door to ensure that the cutting mechanism of the laser cutting machine cannot be started when the lifting door is open, and only when the lifting door is completely closed can the cutting mechanism be normally started for cutting operations. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of a vertical lifting door device for a laser cutting machine with high stability.

[0013] Figure 2 is a schematic side sectional structural diagram of the lifting door.

[0014] In the figure, 1 is the lifting door, 2 is the rodless cylinder, 3 is the fully enclosed main body, 4 is the power connection switch, 11 is the acrylic window, 12 is the sealing plate, 14 is the elastic pressing plate, 15 is the flexible sheath, 17 is the connecting plate, 18 is the spring column, 21 is the cylinder piston, 22 is the mounting angle seat, and 31 is the sealing chute. Detailed Embodiment

[0015] The following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present utility model are clearly and completely described. The described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0016] As Figure 1 , 2 shown, an embodiment of a vertical lifting door device for a laser cutting machine with high stability is designed in the patent of the present utility model. In this embodiment, the lifting door device includes a lifting door 1 arranged on the front side of the fully enclosed main body 3 of the laser cutting machine. The left and right sides of the lifting door 1 are respectively connected to the fully enclosed main body 3 of the laser cutting machine through rodless cylinders 2. The rodless cylinders 2 on both sides of the lifting door 1 are vertically fixed on the fully enclosed main body 3. The rodless cylinders 2 are commercially available products, and their upper and lower ends are respectively connected and fixed to the support frame of the fully enclosed main body 3 through mounting angle seats 22, and are connected to the control air source through pipelines. Their control buttons are arranged on the control panel of the laser cutting machine. The mounting angle seats 22 are bent or welded from steel plates, with high strength and can bear large loads. The bottom ends of the left and right sides of the lifting door 1 are respectively connected and fixed to the cylinder pistons 21 of the rodless cylinders 2 on both sides through connecting plates 17. The connecting plates 17 are formed by welding steel plates.

[0017] A semi-transparent acrylic window 11 is provided in the center of the door body of the lifting door 1. When the equipment is running, the operator can observe the operation of the internal cutting equipment at any time through the acrylic window 11. Sealing plates 12 are respectively arranged vertically at the left and right ends of the back side of the door body. The sealing plates 12 extend towards the back side of the lifting door 1. The sealing plates 12 are in a T shape. Correspondingly, sealing chutes 31 are respectively arranged vertically on the left and right sides of the fully enclosed main body 3 at the lifting door 1. The cross-section of the sealing chutes 31 is also in a T shape and is not communicated with the inner side of the machine body. Sealing strips are arranged on both sides of the front end face of the sealing chutes 31. The sealing plates 12 at the back side ends of the lifting door 1 are respectively engaged and slidably connected in the sealing chutes 31 on both sides. A sealing strip is also provided between the top of the fully enclosed main body 1 and the lifting door 1. The sealing strips all adopt snap-in wool strips and will not cause frictional hindrance to the lifting process of the lifting door 1. The bottom end of the lifting door 1 is connected with an elastic pressing plate 14. The elastic pressing plate 14 is connected to the bottom end of the lifting door through two spring columns 18. Two through holes are provided at the bottom end of the door body of the lifting door 1. The bottom ends of the two spring columns 18 are fixed to the elastic pressing plate 14, and the top ends respectively penetrate and are engaged in the two through holes at the bottom end of the door body. The two ends of the springs sleeved on the spring columns 18 respectively abut against the bottom edge of the door body and the elastic pressing plate 14. The bottom end of the lifting door 1 is connected with a corrugated flexible sleeve 15. The flexible sleeve 15 covers the outside of the elastic pressing plate 14.

[0018] In addition, a power connection switch 4 of the cutting mechanism of the laser cutting machine is provided on the lower side of the fully enclosed main body 3. When the lifting door 1 descends to the lowest end, it can press the power connection switch 4, and at this time, the power supply of the cutting mechanism is turned on. Only after the lifting door 1 is completely closed can the cutting mechanism of the laser cutting machine work normally.

[0019] The above content is only a preferred embodiment of the present invention, and it cannot be used to limit the scope of implementation of the present invention. That is, all simple equivalent changes and modifications made according to the claims of the present invention and the description content of the present invention still fall within the scope covered by the present invention.

Claims

1. A vertical lifting door device for a laser cutting machine with high stability, characterized in that, The lifting door device includes a lifting door arranged on the front side of the fully enclosed main body of the laser cutting machine. The left and right sides of the lifting door are respectively connected to the fully enclosed main body of the laser cutting machine through rodless cylinders. The rodless cylinders on both sides of the lifting door are vertically fixed on the fully enclosed main body, and the bottom ends of the left and right sides of the lifting door are respectively connected to the pistons of the rodless cylinders on both sides through connecting plates.

2. The vertical lifting door device for a laser cutting machine with high stability according to claim 1, wherein The upper and lower ends of the rodless cylinder are respectively connected and fixed to the fully enclosed main body through mounting angle seats.

3. The vertical lifting door device for a laser cutting machine with high stability according to claim 2, characterized in that, Sealing plates are respectively arranged vertically at the left and right ends of the back side of the lifting door. The sealing plates extend towards the back side of the lifting door. Correspondingly, sealing chutes are respectively arranged vertically on the left and right sides of the fully enclosed main body at the position of the lifting door, and sealing strips are arranged along the sealing chutes. The sealing plates at both ends of the back side of the lifting door are respectively slidably connected in the sealing chutes on both sides.

4. A vertical lifting door device for a laser cutting machine with high stability according to claim 3, characterized in that, A sealing strip is also arranged between the top of the fully enclosed main body and the lifting door.

5. The vertical lifting door device for a laser cutting machine with high stability according to claim 4, characterized in that A power connection switch of the cutting mechanism of the laser cutting machine is arranged on the fully enclosed main body at the lower side of the lifting door. When the lifting door descends to the lowest end, it presses the power connection switch, and at this time, the power of the cutting mechanism is turned on.

6. The vertical lifting door device for a laser cutting machine with high stability according to claim 5, characterized in that, An elastic pressing plate is connected to the bottom end of the lifting door. The elastic pressing plate is connected to the bottom end of the lifting door through a spring column, and the bottom end of the lifting door is integrally covered with a flexible sleeve on the outside of the elastic pressing plate.

7. The vertical lifting door device for a laser cutting machine with high stability according to claim 1, characterized in that, The middle part of the lifting door is a semi-transparent acrylic window.

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