Laser cutting machine for optical fiber distribution box

Abstract

The present invention relates to the technical field of laser cutting machines, and specifically to a laser cutting machine for an optical cable fiber distribution box, comprising a housing, a placement table, and a cutting head; the laser cutting machine further comprises a support plate, a lifting rod, a first electromagnet, a lifting sleeve, and a first connecting unit; a plurality of support plates are provided and arranged horizontally along the length direction of the placement table, and the upper ends of all support plates jointly form a supporting end surface for supporting the plate; the lifting rod is vertically fixedly provided at the lower part of the support plate; the first electromagnet is provided on one side of the cutting head and moves synchronously with the cutting head along the length direction of the placement table; the lifting sleeve is vertically provided below the lifting rod, and the lower end of the lifting rod vertically extends into the lifting sleeve and slides with the lifting sleeve; the first connecting unit is provided on the side of the lifting sleeve. The present invention not only ensures that the support plate can avoid cutting by the cutting head, but also ensures stable support for the plate, and also reduces production costs and subsequent maintenance costs.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting machines, and in particular to a laser cutting machine for an optical cable fiber distribution box. Background Art

[0002] When optical cable distribution boxes are cut, laser cutting machines are often used. During the cutting process of some laser cutting machines, coolant is required for cooling. Although the working efficiency during the cutting process is improved, the use efficiency of the coolant is not high, which increases the cutting cost during the cutting process.

[0003] Chinese patent publication number CN214769761U discloses a laser cutting device for advertising light box processing, including a frame, two vertical plates, guide rails, a laser cutting machine body, a cleaning component, a cooling component, a cross plate and a drain plate. The vertical plates are fixedly connected to the left and right sides of the top of the frame, the guide rails are installed between the inner sides of the vertical plates, the laser cutting machine body is slidably connected to the guide rails, the cleaning component is installed on the left side of the lower end of the laser cutting machine body, the cooling component is installed on the right side of the lower end of the laser cutting machine body, the cross plate is installed on the top of the vertical plates, and the drain plate is installed on the top of the frame.

[0004] The above solution realizes the recycling of cooling liquid. The above solution can also be applied to the cutting operation of optical fiber distribution box. However, during the cutting process, in order to avoid the laser cutting the equipment itself, the equipment needs to be protected by design. At the same time, the process parameters need to be optimized, such as controlling the laser power and focus position monitoring, and pre-planning the motion trajectory. However, when cutting, the equipment needs to provide support for the optical fiber distribution box. When the laser cuts the optical fiber distribution box, it is necessary to avoid the support point of the equipment, otherwise it will have a cutting effect on the equipment itself, causing the support point on the equipment to affect the cutting operation. When cutting, it is necessary to avoid the support point of the equipment, and the degree of freedom is low. Summary of the Invention

[0005] In response to the above problems, a laser cutting machine for an optical cable fiber distribution box is provided, wherein a first electromagnet is arranged on one side of the cutting head, which moves synchronously with the cutting head along the length direction of the placement table, and a lifting rod and a lifting sleeve are arranged at the lower part of the support plate, and a first connecting unit is arranged on one side of the lifting sleeve. When the first connecting unit is in a closed state, the lifting rod cannot be lifted or lowered in the lifting sleeve, and the support plate provides support for the plate. When the first electromagnet moves to directly above the first connecting unit, the first connecting unit opens under the magnetic force of the first electromagnet, and the support plate descends and disengages from the support for the plate. Subsequently, when the cutting head passes through the support plate, the laser generated by the cutting head will not cut the support plate, while the other support plates are still in a supporting state. When the cutting head leaves directly above the support plate, the hydraulic oil is re-injected into the lifting sleeve, so that the support plate rises again and supports the plate.

[0006] To solve the problems of the prior art, the present invention provides a laser cutting machine for an optical cable fiber distribution box, comprising a housing, a placement table and a cutting head;

[0007] The laser cutting machine further includes a support plate, a lifting rod, a first electromagnet, a lifting sleeve and a first communication unit;

[0008] There are multiple support plates arranged horizontally along the length of the placement table, and the upper ends of all the support plates together form a support end surface for supporting the plate;

[0009] The lifting rod is vertically fixedly arranged at the lower part of the supporting plate;

[0010] The first electromagnet is arranged on one side of the cutting head and moves synchronously with the cutting head along the length direction of the placement table;

[0011] The lifting sleeve is vertically arranged below the lifting rod, and the lower end of the lifting rod vertically extends into the lifting sleeve and slides with the lifting sleeve. Hydraulic oil is set in the lifting sleeve;

[0012] The first communication unit is arranged on the side of the lifting sleeve, and the first communication unit is opened by magnetic force.

[0013] Preferably, the first communication unit includes a first communication sleeve, a communication groove, a lifting groove and a first communication block;

[0014] The first communication sleeve is arranged on one side of the lifting sleeve and is communicated with the lifting sleeve;

[0015] The communication groove is horizontally penetrated and opened on the first communication sleeve;

[0016] The lifting groove is provided in the first connecting sleeve, and the connecting groove is connected with the lifting groove;

[0017] The first connecting block is vertically slidably arranged in the lifting groove, the first connecting block can be magnetically attracted, and a first through hole is horizontally opened on the first connecting block. When the first connecting block is lifted or lowered, the first through hole can be connected with the connecting groove.

[0018] Preferably, the first electromagnet is arranged in a horizontal state, and the vertical projection of the cutting head is located in an extension area of ​​the first electromagnet in the width direction of the placement table.

[0019] Preferably, a liquid storage tank is provided below the lifting sleeve, and a first flow guide pipe connected with the first communication unit is provided on the liquid storage tank.

[0020] Preferably, the laser cutting machine further comprises a second flow guide pipe, a water pump and a second communication unit;

[0021] One end of the second flow guide pipe is arranged on the liquid storage tank and is in communication with the liquid storage tank;

[0022] The water pump is arranged on the second guide pipe;

[0023] The second communicating unit is provided at one side of the lifting sleeve and communicated with the lifting sleeve. The second communicating unit is communicated with the liquid storage tank through a second flow guide pipe. Either the second communicating unit or the first communicating unit is opened.

[0024] Preferably, the second connecting unit is opened under the action of magnetic force, and the laser cutting machine also includes a second electromagnet. The second electromagnet and the first electromagnet are respectively arranged on both sides of the cutting head. There are two second electromagnets and they are arranged symmetrically about the first electromagnet. In the moving direction of the first electromagnet, the second electromagnet located behind the first electromagnet is energized, and the second electromagnet located in front of the first electromagnet is de-energized.

[0025] Preferably, the second communication unit includes a second communication sleeve, a second communication groove, a second lifting groove and a second communication block;

[0026] The second communication sleeve is arranged on one side of the lifting sleeve and is communicated with the lifting sleeve;

[0027] The second connecting groove is horizontally penetrated and opened on the second connecting sleeve;

[0028] The second lifting groove is vertically opened in the second connecting sleeve and intersects with the second connecting groove;

[0029] The second communication block is vertically slidably arranged in the second lifting groove. A second through hole is horizontally opened on the second communication block. When the second communication block is lifted or lowered, the second through hole can be connected with the second communication groove.

[0030] Preferably, the second communication unit includes a one-way valve, which is arranged between the second communication sleeve and the lifting sleeve, and the hydraulic oil in the liquid storage tank flows into the lifting sleeve through the one-way valve.

[0031] Preferably, the laser cutting machine further comprises a detection unit, which comprises a roller and a direction sensor;

[0032] The roller is arranged above the cutting head and moves synchronously with the cutting head along the length direction of the placement table, and the roller is in rolling cooperation with the top of the housing;

[0033] The direction sensor is arranged at the end of the roller.

[0034] Preferably, the detection unit further comprises a mounting frame, a spring and a driving frame;

[0035] The mounting frame is arranged below the roller, and the roller is rotatably arranged on the mounting frame;

[0036] The spring is vertically arranged below the mounting frame, and the upper end of the spring is fixedly connected to the mounting frame;

[0037] The driving frame is arranged at the lower end of the spring and is fixedly connected to the spring, and the cutting head is arranged on the driving frame.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The present invention sets a first electromagnet on one side of the cutting head that moves synchronously with the cutting head along the length direction of the placement table, and sets a lifting rod and a lifting sleeve on the lower part of the support plate, and sets a first connecting unit on one side of the lifting sleeve. When the first connecting unit is in a closed state, the lifting rod cannot be lifted or lowered in the lifting sleeve, and the support plate provides support for the plate. When the first electromagnet moves to the top of the first connecting unit, the first connecting unit opens under the magnetic force of the first electromagnet, and the support plate descends and disengages from the plate. Subsequently, when the cutting head passes through the support plate, the laser generated by the cutting head will not cut the support plate, while the other support plates are still in a supporting state. When the cutting head leaves the top of the support plate, the hydraulic oil is re-injected into the lifting sleeve, so that the support plate rises again and supports the plate. In summary, the present invention not only ensures that the support plate can avoid cutting by the cutting head, but also ensures stable support for the plate, while avoiding the use of traditional independent cylinders to drive the support plate, reducing production costs and subsequent maintenance costs.

[0040] 2. Since the vertical projection of the cutting head is located within the extension area of ​​the first electromagnet in the width direction of the placement table, when the first electromagnet moves along the length direction of the placement table with the cutting head, when either end of the first electromagnet reaches directly above the first connecting unit, the cutting head has not moved directly above the support plate corresponding to the first connecting unit. Therefore, the support plate can be lowered in advance before the cutting head arrives. When the cutting head is directly above the support plate, the laser cannot cut the descending support plate when the cutting head cuts the plate. If one end of the first electromagnet is directly above the first connecting unit, the cutting head is also directly above the support plate corresponding to the first connecting unit. Although the first electromagnet can open the first connecting unit and the support plate descends, there is still a probability that the descending support plate will be cut by the laser. In summary, by making the vertical projection of the cutting head located within the extension area of ​​the first electromagnet in the width direction of the placement table, it is ensured that the support plate has already descended before the cutting head reaches the support plate, completely avoiding the cutting effect of the cutting head on the support plate.

[0041] 3. The first electromagnet first passes through the first connecting unit to open the first connecting unit, and the lifting sleeve discharges the hydraulic oil inside it. Then the cutting head reaches the top of the support plate. At this time, the support plate is separated from the support for the plate, and the cutting head will not have a cutting effect on the support plate during cutting. Then the first electromagnet and the cutting head continue to move along the inherent direction, and the second electromagnet located behind the first electromagnet moves to the top of the second connecting unit. The second connecting unit is opened under the magnetic force of the second electromagnet, and the water pump discharges the hydraulic oil in the liquid storage tank into the lifting sleeve through the second guide pipe, so that the lifting rod located in the lifting sleeve rises, thereby realizing the rising and resetting of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a three-dimensional schematic diagram of the laser cutting machine used for the optical cable fiber distribution box of the present invention.

[0043] Figure 2 It is a three-dimensional schematic diagram of the laser cutting machine for the optical cable fiber distribution box of the present invention with the outer shell removed.

[0044] Figure 3 It is a three-dimensional schematic diagram of the laser cutting machine for the optical cable fiber distribution box of the present invention after removing the outer shell and the placement table.

[0045] Figure 4 The present invention is a laser cutting machine for optical cable fiber distribution box Figure 3 A local enlarged schematic diagram of point A in the middle.

[0046] Figure 5 It is a three-dimensional schematic diagram of the laser cutting machine for the optical cable fiber distribution box of the present invention after removing the outer shell, the placement table and the movable frame.

[0047] Figure 6 The present invention is a laser cutting machine for optical cable fiber distribution box Figure 5 A partial enlarged schematic diagram of point B in the middle.

[0048] Figure 7 It is a side view of the laser cutting machine for the optical cable fiber distribution box of the present invention after removing the cutting head, housing, placement table and movable frame.

[0049] Figure 8 The present invention is a laser cutting machine for optical cable fiber distribution box Figure 7 Schematic cross-sectional view at CC in the middle.

[0050] Figure 9 It is a cutaway perspective schematic diagram of a laser cutting machine for an optical cable fiber distribution box according to the present invention.

[0051] Figure 10 The present invention is a laser cutting machine for optical cable fiber distribution box Figure 9 A local enlarged schematic diagram of point D in the middle.

[0052] Figure 11 The present invention is a laser cutting machine for optical cable fiber distribution box Figure 9 A partial enlarged schematic diagram of point E in the middle.

[0053] The numbers in the figure are:

[0054] 1. Housing; 11. Cutting head; 2. Placement table; 21. Moving frame; 22. Support plate; 221. Lifting rod; 23. First electromagnet; 24. Lifting sleeve; 25. First connecting unit; 251. First connecting sleeve; 2511. First connecting groove; 2512. First lifting groove; 252. First connecting block; 2521. First through hole; 26. Liquid storage tank; 261. First guide pipe; 262. First confluence pipe; 26 3. Second flow guide pipe; 264. Water pump; 27. Second connecting unit; 271. Second connecting sleeve; 2711. Second connecting groove; 2712. Second lifting groove; 272. Second connecting block; 2721. Second through hole; 273. One-way valve; 28. Second electromagnet; 29. ​​Detection unit; 291. Roller; 292. Direction sensor; 293. Mounting frame; 294. Spring; 295. Drive frame; 3. Plate. DETAILED DESCRIPTION

[0055] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] Reference Figure 1-Figure 3 、 Figure 5 、 Figure 6 and Figure 11: A laser cutting machine for an optical cable fiber distribution box, comprising a housing 1, a placement table 2 and a cutting head 11;

[0057] The laser cutting machine further includes a support plate 22, a lifting rod 221, a first electromagnet 23, a lifting sleeve 24 and a first communication unit 25;

[0058] There are multiple support plates 22 and they are arranged horizontally along the length direction of the placement table 2. The upper ends of all the support plates 22 together form a support end surface for supporting the plate 3.

[0059] The lifting rod 221 is vertically fixedly arranged at the lower part of the support plate 22;

[0060] The first electromagnet 23 is arranged on one side of the cutting head 11 and moves synchronously with the cutting head 11 along the length direction of the placement table 2;

[0061] The lifting sleeve 24 is vertically arranged below the lifting rod 221. The lower end of the lifting rod 221 vertically extends into the lifting sleeve 24 and slides with the lifting sleeve 24. Hydraulic oil is provided in the lifting sleeve 24.

[0062] The first communication unit 25 is provided on the side of the lifting sleeve 24 , and the first communication unit 25 is opened by magnetic force.

[0063] At the beginning of the processing of the optical fiber distribution box, the plate 3 is first cut into a preset shape by a laser cutting machine, and then the cut plate 3 is welded into shape, and then the outer shape of the optical fiber distribution box is formed. When cutting by laser, the plate 3 is usually placed on a support end surface composed of support plates 22. The lower part of the support plates 22 is provided with a movable frame 21 that supports all support plates 22. The movable frame 21 drives all support plates 22 to the working area of ​​the cutting head 11. Since the support plates 22 of existing laser cutting machines cannot move in the vertical direction, even if the support plates 22 can move in the vertical direction, the structure is relatively complex. Independent cylinders are often used to control the lifting of the support plates 22, which has a high production cost. In order to reduce costs, there are four main existing treatment methods, including: adjusting cutting parameters, improving the material and structure of the support plate 22, adopting auxiliary process measures, and optimizing the cutting path and process planning. Adjusting the cutting parameters requires adjusting the cutting power of the cutting head 11. If the power is reduced to avoid damage to the support plate 22, the cutting speed of the plate 3 will be too slow, and the cutting quality will also be reduced. If the material and structure of the support plate 22 are improved, by selecting a high-temperature resistant support plate 22 or increasing the thickness of the support plate 22, although the support of the support plate 22 can be guaranteed, the support of the support plate 22 will be reduced. 2 is still easily cut by the cutting head 11; if auxiliary process measures are adopted, such as using protective gas or applying anti-cutting coating, although the support plate 22 can be prevented from being cut to a certain extent, the use cost is high and the anti-cutting effect is limited; if the cutting path is optimized, by optimizing the moving path of the cutting head 11 and reducing the intersection points of the cutting head 11 and the support plate 22 during cutting, the support plate 22 can be prevented from being cut to a certain extent, but it is still impossible to prevent the cutting head 11 from passing through the support plate 22, and in order to consider that the support plate 22 is not cut, it is easy to be restricted when planning the path of the cutting head 11, resulting in that the plate 3 cannot be fully utilized.

[0064] In order to avoid the above problems, the present invention still adopts the method of lifting the support plate 22 in the vertical direction to avoid cutting of the cutting head 11. However, compared with the traditional driving method using an independent cylinder, the present invention reduces production and maintenance costs and is more popular. The specific structure and working process of the present invention are as follows:

[0065] The plate 3 is placed on the support end surface formed by the support plate 22. At this time, the support end surface is located on one side of the cutting area of ​​the cutting head 11. Then, the support plate 22 is driven by the mobile frame 21 along the length direction of the placement table 2 to the cutting area of ​​the cutting head 11. After the mobile frame 21 completely enters the cutting area of ​​the cutting head 11, the mobile frame 21 stops moving, and the cutting head 11 starts to cut the plate 3 according to the preset path. When the cutting head 11 moves along the length direction of the placement table 2, the first electromagnet 23 moves synchronously with the cutting head 11, and the first electromagnet 23 is started synchronously after the cutting head 11 runs. Before the cutting head 11 moves to the top of any support plate 22, the first electromagnet 23 first opens the first connecting unit 25 corresponding to the support plate 22, and the lifting rod 221 is on the support plate 2 2 slides into the lifting sleeve 24 under the action of gravity and squeezes out the hydraulic oil in the lifting sleeve 24. The squeezed hydraulic oil is discharged through the opened first connecting unit 25, thereby causing the support plate 22 to descend. When the cutting head 11 moves to just above the support plate 22, since the support plate 22 descends in advance, the cutting head 11 will not have a cutting effect on the support plate 22 when cutting the plate 3. After the support plate 22 passes the support plate 22, the first connecting unit 25 is closed, and the discharged hydraulic oil is re-injected into the lifting sleeve 24, so that the lifting rod 221 drives the support plate 22 to rise and reset, ensuring that during the cutting process of the cutting head 11, there is always only one support plate 22 in the descending state, so that the support plate 22 can avoid being cut by the cutting head 11 and ensure stable support for the plate 3.

[0066] By setting a first electromagnet 23 on one side of the cutting head 11 and moving synchronously with the cutting head 11 along the length direction of the placing table 2, a lifting rod 221 and a lifting sleeve 24 are set at the lower part of the support plate 22, and a first connecting unit 25 is set on one side of the lifting sleeve 24. When the first connecting unit 25 is in a closed state, the lifting rod 221 cannot be lifted or lowered in the lifting sleeve 24, and the support plate 22 provides support for the plate 3. When the first electromagnet 23 moves to the top of the first connecting unit 25, the first connecting unit 25 is opened under the magnetic force of the first electromagnet 23, and the support plate 22 descends and disengages from the support of the plate 3. Subsequently, when the cutting head 11 passes through the support plate 22, the laser generated by the cutting head 11 will not cut the support plate 22, while the other support plates 22 are still in a supporting state. When the cutting head 11 leaves the top of the support plate 22, the hydraulic oil is re-injected into the lifting sleeve 24, so that the support plate 22 rises again and supports the plate 3. In summary, the present invention not only ensures that the support plate 22 can avoid cutting by the cutting head 11, but also ensures stable support for the plate 3, while avoiding the use of traditional independent cylinders to drive the support plate 22, thereby reducing production costs and subsequent maintenance costs.

[0067] Reference Figure 11: The first communication unit 25 includes a first communication sleeve 251, a communication groove, a lifting groove and a first communication block 252;

[0068] The first communication sleeve 251 is provided on one side of the lifting sleeve 24 and is in communication with the lifting sleeve 24;

[0069] The communication groove is horizontally opened on the first communication sleeve 251;

[0070] The lifting groove is provided in the first communicating sleeve 251, and the communicating groove is communicated with the lifting groove;

[0071] The first connecting block 252 is vertically slidably set in the lifting groove. The first connecting block 252 can be magnetically attracted. A first through hole 2521 is horizontally opened on the first connecting block 252. When the first connecting block 252 is lifted or lowered, the first through hole 2521 can be connected to the connecting groove.

[0072] When the cutting head 11 moves along the length direction of the placing table 2 to the top of the support plate 22, since the first electromagnet 23 moves synchronously with the cutting head 11 and the first electromagnet 23 is in a continuously energized state, the first electromagnet 23 is located directly above the first connecting sleeve 251 corresponding to the support plate 22, and the first connecting block 252 arranged in the lifting groove rises under the magnetic action of the first electromagnet 23. When the first connecting block 252 rises to the highest position, the first through hole 2521 opened on the first connecting block 252 is connected to the connecting groove, and the hydraulic oil in the lifting sleeve 24 can be freely discharged through the connecting groove. At this time, the lifting rod 221 gradually slides into the lifting sleeve 24, so that the lifting rod 221 drives the support plate 22 to descend synchronously. Therefore, when the cutting head 11 moves to the top of the support plate 22, the support plate 22 is separated from the support of the plate 3, and the plate 3 is supported by other support plates 22, thereby preventing the cutting head 11 from cutting the support plate 22 during the cutting process.

[0073] Reference Figures 1-11 : The first electromagnet 23 is arranged in a horizontal state, and the vertical projection of the cutting head 11 is located in the extension area of ​​the first electromagnet 23 in the width direction of the placement table 2.

[0074] Since the vertical projection of the cutting head 11 is located in the extension area of ​​the first electromagnet 23 in the width direction of the placement table 2, in the process of the first electromagnet 23 moving along the length direction of the placement table 2 with the cutting head 11, when either end of the first electromagnet 23 reaches directly above the first connecting unit 25, the cutting head 11 has not moved directly above the support plate 22 corresponding to the first connecting unit 25, so the support plate 22 can be lowered in advance before the cutting head 11 arrives. When the cutting head 11 is directly above the support plate 22, when the cutting head 11 cuts the plate 3, the laser cannot produce a cutting effect on the descending support plate 22. If one end of the first electromagnet 23 is directly above the first connecting unit 25, the cutting head 11 is also directly above the support plate 22 corresponding to the first connecting unit 25. Although the first electromagnet 23 can open the first connecting unit 25 and the support plate 22 descends at this time, there is still a probability that the descending support plate 22 will be cut by the laser. In summary, by ensuring that the vertical projection of the cutting head 11 is located within the extension area of ​​the first electromagnet 23 in the width direction of the placement table 2, it is ensured that the support plate 22 has already dropped before the cutting head 11 reaches the support plate 22, completely avoiding the cutting effect of the cutting head 11 on the support plate 22.

[0075] Reference Figure 5 、 Figure 9 and Figure 11 A liquid storage tank 26 is provided below the lifting sleeve 24 , and a first flow guide pipe 261 communicating with the first communicating unit 25 is provided on the liquid storage tank 26 .

[0076] Since there are multiple support plates 22, there are also multiple first connecting units 25. A first converging pipe 262 is provided at the end of the first connecting unit 25 away from the lifting sleeve 24. The two ends of the first guide pipe 261 are respectively connected to the first converging pipe 262 and the liquid storage tank 26. When any first connecting unit 25 is opened, the hydraulic oil in the lifting sleeve 24 corresponding to the first connecting unit 25 will be discharged into the first converging pipe 262 and flow into the liquid storage tank 26 through the first guide pipe 261.

[0077] Reference Figure 6 : The laser cutting machine also includes a second flow guide pipe 263, a water pump 264 and a second communication unit 27;

[0078] One end of the second flow guide pipe 263 is disposed on the liquid storage tank 26 and communicates with the liquid storage tank 26;

[0079] The water pump 264 is provided on the second flow guide pipe 263;

[0080] The second communication unit 27 is provided at one side of the lifting sleeve 24 and communicates with the lifting sleeve 24 . The second communication unit 27 is communicated with the liquid storage tank 26 through the second guide pipe 263 . Either the second communication unit 27 or the first communication unit 25 is opened.

[0081] When the first connecting unit 25 is opened, the second connecting unit 27 is in a closed state, and the hydraulic oil in the lifting sleeve 24 is discharged into the liquid storage tank 26 through the second connecting unit 27. When the cutting head 11 passes directly above the support plate 22, the first connecting unit 25 loses its magnetic effect, and the first connecting unit 25 is closed. Then the water pump 264 is started, and the water pump 264 draws out the hydraulic oil in the liquid storage tank 26 and discharges it into the lifting sleeve 24 through the second guide pipe 263, so that the lifting rod 221 drives the support plate 22 to rise, thereby realizing the reset of the support plate 22.

[0082] Reference Figure 10 : The second connecting unit 27 is opened under the action of magnetic force. The laser cutting machine also includes a second electromagnet 28. The second electromagnet 28 and the first electromagnet 23 are respectively arranged on both sides of the cutting head 11. There are two second electromagnets 28 and they are symmetrically arranged about the first electromagnet 23. In the moving direction of the first electromagnet 23, the second electromagnet 28 located behind the first electromagnet 23 is energized, and the second electromagnet 28 located in front of the first electromagnet 23 is de-energized.

[0083] The first electromagnet 23 first passes through the first connecting unit 25, so that the first connecting unit 25 is opened, and the lifting sleeve 24 discharges the hydraulic oil inside it, and then the cutting head 11 reaches directly above the support plate 22. At this time, the support plate 22 is separated from the support for the plate 3, and the cutting head 11 will not produce a cutting effect on the support plate 22 during cutting. Then the first electromagnet 23 and the cutting head 11 continue to move along the inherent direction, and the second electromagnet 28 located behind the first electromagnet 23 moves to directly above the second connecting unit 27. The second connecting unit 27 is opened under the magnetic force of the second electromagnet 28, and the water pump 264 discharges the hydraulic oil in the liquid storage tank 26 into the lifting sleeve 24 through the second guide pipe 263, so that the lifting rod 221 located in the lifting sleeve 24 rises, thereby realizing the rising and resetting of the support plate 22.

[0084] Reference Figure 10 The second communication unit 27 includes a second communication sleeve 271, a second communication groove 2711, a second lifting groove 2712 and a second communication block 272;

[0085] The second communication sleeve 271 is provided on one side of the lifting sleeve 24 and is in communication with the lifting sleeve 24;

[0086] The second communication groove 2711 is horizontally formed on the second communication sleeve 271;

[0087] The second lifting groove 2712 is vertically opened in the second communicating sleeve 271 and intersects with the second communicating groove 2711;

[0088] The second connecting block 272 is vertically slidably disposed in the second lifting groove 2712 . A second through hole 2721 is horizontally formed through the second connecting block 272 . When the second connecting block 272 is lifted or lowered, the second through hole 2721 can be connected to the second connecting groove 2711 .

[0089] The second connecting unit 27 operates on the same principle as the first connecting unit 25. Before the second electromagnet 28 moves directly above the second connecting unit 27, the second connecting block 272 is located at the bottom of the second lifting groove 2712, and the second through hole 2721 is disconnected from the second connecting groove 2711. When the second electromagnet 28 moves directly above the second connecting unit 27, the second connecting block 272 rises, connecting the second through hole 2721 with the second connecting groove 2711. At this point, the water pump 264 starts and pumps hydraulic oil into the lifting sleeve 24 through the second guide tube 263.

[0090] Reference Figure 6 The second communication unit 27 includes a one-way valve 273 , which is disposed between the second communication sleeve 271 and the lifting sleeve 24 . The hydraulic oil in the liquid storage tank 26 flows into the lifting sleeve 24 through the one-way valve 273 .

[0091] The one-way valve 273 is provided to prevent the support plate 22 from further descending when the second communication unit 27 is opened but the water pump 264 is not started in time, thereby improving the reset speed of the support plate 22.

[0092] Reference Figure 2 and Figure 4 : The laser cutting machine further includes a detection unit 29, which includes a roller 291 and a direction sensor 292;

[0093] The roller 291 is disposed above the cutting head 11 and moves synchronously with the cutting head 11 along the length direction of the placement table 2. The roller 291 rolls with the top of the housing 1.

[0094] The direction sensor 292 is provided at an end portion of the roller 291 .

[0095] The rolling direction of the roller 291 is detected by the direction sensor 292, and the moving direction of the cutting head 11 is determined, and finally which second electromagnet 28 is located behind the first electromagnet 23 is determined, and the second electromagnet 28 located behind the first electromagnet 23 is energized.

[0096] Reference Figure 4 : The detection unit 29 also includes a mounting frame 293, a spring 294 and a driving frame 295;

[0097] The mounting frame 293 is disposed below the roller 291, and the roller 291 is rotatably mounted on the mounting frame 293;

[0098] The spring 294 is vertically arranged below the mounting bracket 293, and the upper end of the spring 294 is fixedly connected to the mounting bracket 293;

[0099] The driving frame 295 is arranged at the lower end of the spring 294 and is fixedly connected to the spring 294 . The cutting head 11 is arranged on the driving frame 295 .

[0100] The spring 294 is always in a compressed state, and the spring 294 provides elastic force for the mounting bracket 293 , so that the roller 291 can always be pressed against the top of the housing 1 , ensuring stable detection of the direction sensor 292 .

[0101] Working principle: The plate 3 is placed on the support end surface formed by the support plate 22. At this time, the support end surface is located on one side of the cutting area of ​​the cutting head 11. Then the support plate 22 is driven by the mobile frame 21 along the length direction of the placement table 2 to the cutting area of ​​the cutting head 11. After the mobile frame 21 completely enters the cutting area of ​​the cutting head 11, the mobile frame 21 stops moving, and the cutting head 11 starts to cut the plate 3 according to the preset path. When the cutting head 11 moves along the length direction of the placement table 2, the first electromagnet 23 moves synchronously with the cutting head 11, and the first electromagnet 23 is started synchronously after the cutting head 11 runs. Before the cutting head 11 moves to the top of any support plate 22, the first electromagnet 23 opens the first connecting unit 25 corresponding to the support plate 22, and the lifting rod 221 is at the support The plate 22 slides into the lifting sleeve 24 under the action of gravity and squeezes out the hydraulic oil in the lifting sleeve 24. The squeezed hydraulic oil is discharged through the opened first connecting unit 25, thereby causing the support plate 22 to descend. When the cutting head 11 moves to directly above the support plate 22, since the support plate 22 descends in advance, the cutting head 11 will not have a cutting effect on the support plate 22 when cutting the plate 3. After the support plate 22 passes the support plate 22, the first connecting unit 25 is closed, and the discharged hydraulic oil is re-injected into the lifting sleeve 24, so that the lifting rod 221 drives the support plate 22 to rise and reset, ensuring that during the cutting process of the cutting head 11, there is always only one support plate 22 in the descending state, so that the support plate 22 can avoid being cut by the cutting head 11 and ensure stable support for the plate 3.

[0102] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. Laser cutting machine for optical fiber distribution box, including housing, placement table and cutting head; It is characterized in that The laser cutting machine further includes a support plate, a lifting rod, a first electromagnet, a lifting sleeve and a first communication unit; There are multiple support plates arranged horizontally along the length of the placement table, and the upper ends of all the support plates together form a support end surface for supporting the plate; The lifting rod is vertically fixedly arranged at the lower part of the supporting plate; The first electromagnet is arranged on one side of the cutting head and moves synchronously with the cutting head along the length direction of the placement table; The lifting sleeve is vertically arranged below the lifting rod, and the lower end of the lifting rod vertically extends into the lifting sleeve and slides with the lifting sleeve. Hydraulic oil is set in the lifting sleeve; The first communication unit is arranged on the side of the lifting sleeve, and the first communication unit is opened by magnetic force; The first communication unit includes a first communication sleeve, a communication groove, a lifting groove and a first communication block; The first communication sleeve is arranged on one side of the lifting sleeve and is communicated with the lifting sleeve; The communication groove is horizontally penetrated and opened on the first communication sleeve; The lifting groove is provided in the first connecting sleeve, and the connecting groove is connected with the lifting groove; The first connecting block is vertically slidably arranged in the lifting groove. The first connecting block can be magnetically attracted. A first through hole is horizontally opened on the first connecting block. When the first connecting block is raised or lowered, the first through hole can be connected with the connecting groove. The first electromagnet is arranged in a horizontal state, and the vertical projection of the cutting head is located within the extension area of ​​the first electromagnet in the width direction of the placement table; A liquid storage tank is provided below the lifting sleeve, and a first flow guide pipe connected to the first communication unit is provided on the liquid storage tank; The laser cutting machine further includes a second flow guide pipe, a water pump and a second communication unit; One end of the second flow guide pipe is arranged on the liquid storage tank and is in communication with the liquid storage tank; The water pump is arranged on the second guide pipe; The second communication unit is provided on one side of the lifting sleeve and is in communication with the lifting sleeve. The second communication unit is in communication with the liquid storage tank via a second flow guide pipe. Either the second communication unit or the first communication unit is opened. The second connecting unit is opened under the action of magnetic force. The laser cutting machine also includes a second electromagnet. The second electromagnet and the first electromagnet are respectively arranged on both sides of the cutting head. There are two second electromagnets and they are symmetrically arranged about the first electromagnet. In the moving direction of the first electromagnet, the second electromagnet located behind the first electromagnet is energized, and the second electromagnet located in front of the first electromagnet is de-energized; before the cutting head moves to the top of any support plate, the first electromagnet first opens the first connecting unit corresponding to the support plate, and the lifting rod slides into the lifting sleeve under the action of the gravity of the support plate and squeezes out the hydraulic oil in the lifting sleeve. The squeezed hydraulic oil is discharged through the opened first connecting unit, thereby causing the support plate to drop. When the cutting head passes the support plate, the first connecting unit is closed, and the discharged hydraulic oil is re-injected into the lifting sleeve, so that the lifting rod drives the support plate to rise and reset.

2. The laser cutting machine for optical cable distribution box according to claim 1, characterized in that: The second communication unit includes a second communication sleeve, a second communication groove, a second lifting groove and a second communication block; The second communication sleeve is arranged on one side of the lifting sleeve and is communicated with the lifting sleeve; The second connecting groove is horizontally penetrated and opened on the second connecting sleeve; The second lifting groove is vertically opened in the second connecting sleeve and intersects with the second connecting groove; The second communication block is vertically slidably arranged in the second lifting groove. A second through hole is horizontally opened on the second communication block. When the second communication block is lifted or lowered, the second through hole can be connected with the second communication groove.

3. The laser cutting machine for an optical cable fiber distribution box according to claim 2, characterized in that: The second communication unit includes a one-way valve, which is arranged between the second communication sleeve and the lifting sleeve. The hydraulic oil in the liquid storage tank flows into the lifting sleeve through the one-way valve.

4. The laser cutting machine for an optical cable distribution box according to claim 1, characterized in that: The laser cutting machine also includes a detection unit, which includes a roller and a direction sensor; The roller is arranged above the cutting head and moves synchronously with the cutting head along the length direction of the placement table, and the roller is in rolling cooperation with the top of the housing; The direction sensor is arranged at the end of the roller.

5. The laser cutting machine for an optical cable fiber distribution box according to claim 4, characterized in that: The detection unit also includes a mounting frame, a spring and a driving frame; The mounting frame is arranged below the roller, and the roller is rotatably arranged on the mounting frame; The spring is vertically arranged below the mounting frame, and the upper end of the spring is fixedly connected to the mounting frame; The driving frame is arranged at the lower end of the spring and is fixedly connected to the spring, and the cutting head is arranged on the driving frame.

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