Electric spark cutting equipment

Abstract

The utility model discloses an electric spark cutting device which comprises a working arm, an operation table and a machine table, a sliding assembly is installed on the working arm, the sliding assembly comprises a first sliding rail and a second sliding rail, a first sliding block and a second sliding block are installed on the second sliding rail, a turning plate assembly is installed between the first sliding block and the second sliding block, and the first sliding rail and the second sliding rail are arranged on the machine table. A fire extinguisher is installed on the turning plate assembly, the second sliding rail is connected into the first sliding rail in a sliding mode, a first handle is fixedly connected to the second sliding rail, a sliding groove matched with the first handle is formed in the first sliding rail, and the first handle penetrates through the sliding groove. Compared with the prior art, the utility model has the beneficial effects that the electric spark automatic fire extinguisher arranged on the working arm can be manually displaced and deflected, and when the oil steam is combusted in a small scale and the fire extinguisher is not triggered, an operator can conveniently move the fire extinguisher into an operating platform to trigger the fire extinguisher to extinguish fire in a short distance.

Description

Technical Field

[0001] This utility model belongs to the field of cutting equipment, specifically relating to an electric discharge cutting device. Background Technology

[0002] Electrical discharge machining (EDM) equipment utilizes the electro-corrosion phenomenon generated during pulsed discharge between the tool electrode and the workpiece to perform dimensional machining. The instantaneous temperature during EDM machining is around 10,000 degrees Celsius. If the workpiece is not completely immersed in the EDM oil during machining, the oil vapor evaporated during the discharge, mixed with the surrounding air, will ignite upon contact with the spark.

[0003] Electrical discharge cutting (EDC) equipment typically has a suspended automatic fire extinguisher mounted on its working arm. When the temperature-sensing nozzle detects high temperatures, it automatically sprays to extinguish the fire. However, the automatic fire extinguisher mounted on the working arm is quite far from the operating platform. In the early stages of small-scale combustion of oil vapors, it cannot detect the temperature and spray in time. Even if the operator discovers a small-scale fire immediately, they cannot quickly and manually retrieve the automatic fire extinguisher. Utility Model Content

[0004] The purpose of this invention is to provide an electrical discharge cutting device to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides an electric spark cutting device, including a working arm, an operating table, and a machine base. A sliding assembly is installed on the working arm, and the sliding assembly includes a first slide rail and a second slide rail. A first slider and a second slider are installed on the second slide rail. A flip-plate assembly is installed between the first slider and the second slider, and a fire extinguisher is installed on the flip-plate assembly.

[0006] In one or more embodiments of this utility model, the second slide rail is slidably connected within the first slide rail.

[0007] In one or more embodiments of this utility model, a first handle is fixedly connected to the second slide rail, and a slide groove that mates with the first handle is provided on the first slide rail, with the first handle passing through the slide groove.

[0008] In one or more embodiments of this utility model, the second slider is fixed to the bottom of the second slide rail, the first slider is slidably connected to the second slide rail, a first fixed shaft is fixedly connected to the first slider, and a second fixed shaft is fixedly connected to the second slider.

[0009] In one or more embodiments of the present invention, the flap assembly includes a top rod and a connecting rod, a third fixed shaft is fixedly connected to the connecting rod, one end of the connecting rod is sleeved on the first fixed shaft, one end of the top rod is sleeved on the second fixed shaft, and the other end is sleeved on the third fixed shaft.

[0010] In one or more embodiments of this utility model, the third fixed shaft is located at the midpoint of the length of the connecting rod.

[0011] In one or more embodiments of this utility model, a second handle is fixedly connected to the first slider, and the second handle does not contact the second slide rail.

[0012] In one or more embodiments of this utility model, a connecting plate is mounted on the connecting rod.

[0013] In one or more embodiments of this utility model, a fixing ring is fixedly connected to the connecting plate.

[0014] In one or more embodiments of this utility model, the fire extinguisher is fitted inside the fixing ring.

[0015] Compared with the prior art, the beneficial effect of this utility model is that it enables the electric spark automatic fire extinguisher installed on the working arm to be manually moved and deflected. When there is a small-scale fire of oil vapor and the fire extinguisher is not triggered, the operator can easily move the fire extinguisher into the operating platform and trigger the fire extinguisher at close range to extinguish the fire. Attached Figure Description

[0016] Figure 1 This is a first structural diagram of an electrical discharge cutting device according to an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a second structural diagram of an electrical discharge cutting device according to one embodiment of the present invention;

[0019] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0020] Figure 5 This is a first exploded view of the sliding component of an electrical discharge cutting device according to an embodiment of the present invention;

[0021] Figure 6 This is a second exploded view of the sliding component of an electrical discharge cutting device according to an embodiment of the present invention.

[0022] Explanation of key figure labels:

[0023] 1-Working arm, 2-Operating table, 3-Machine platform, 4-First slide rail, 401-Slide groove, 5-Second slide rail, 501-First handle, 502-First slider, 5021-First fixed shaft, 503-Second slider, 5031-Second fixed shaft, 504-Second handle, 505-Top rod, 506-Connecting rod, 5061-Third fixed shaft, 6-Connecting plate, 601-Fixing ring, 7-Fire extinguisher. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0025] refer to Figures 1 to 4 As shown, an electrical discharge machining (EDM) device includes a working arm 1, an operating table 2, and a machine base 3. A fire extinguisher 7 is mounted on one side of the working arm 1. The fire extinguisher 7 is a suspended automatic fire extinguisher specifically designed for existing EDM equipment. It is equipped with a temperature-sensing nozzle. When the temperature-sensing nozzle senses a high temperature, it automatically sprays dry powder to extinguish the fire.

[0026] The working arm 1 is equipped with a sliding component. The sliding component is used to manually operate the sliding component to move the fire extinguisher 7 closer to the operating platform below when the operator of the electric spark cutting equipment discovers a small-scale fire or in the early stage of a fire and the fire extinguisher 7 has not been triggered. This increases the probability of the fire extinguisher 7 being automatically triggered as it gets closer to the point of ignition.

[0027] refer to Figures 3 to 6 As shown, the sliding assembly includes a first slide rail 4 and a second slide rail 5. The first slide rail 4 is fixedly connected to the working arm 1, and the second slide rail 5 is sleeved inside the first slide rail 4 and slidably connected within the first slide rail 4. The second slide rail 5 can slide up and down within the first slide rail 4. A first handle 501 is fixedly connected to the second slide rail 5. The first slide rail 4 has a groove 401 that mates with the first handle 501. The first handle 501 passes through the groove 401. By holding the first handle 501, the operator can operate the second slide rail 5 to slide up and down within the first slide rail 4 along the trajectory of the groove 401.

[0028] The second slide rail 5 is equipped with a first slider 502 and a second slider 503. The first slider 502 and the second slider 503 are installed inside the second slide rail 5. The second slider 503 is fixed to the bottom of the second slide rail 5 and cannot be moved. The first slider 502 is slidably connected to the second slide rail 5 and can slide up and down along the internal trajectory of the second slide rail 5.

[0029] refer to Figures 3 to 6As shown, a flap assembly is installed between the first slider 502 and the second slider 503. The flap assembly is used to manually move the fire extinguisher 7 closer to the center of the worktable 2 after the operator uses the sliding assembly to lower the position of the fire extinguisher 7, thus increasing the probability of activation. Alternatively, after the operator activates the fire extinguisher 7 using the sliding assembly, the flap assembly can be manually used to adjust the angle of the dry powder spray from the fire extinguisher 7 so that it is directly facing the center of the worktable 2, improving extinguishing efficiency and preventing further fire spread.

[0030] A first fixed shaft 5021 is fixedly connected to the first slider 502, and a second fixed shaft 5031 is fixedly connected to the second slider 503. The flap assembly includes a top rod 505 and a connecting rod 506. A third fixed shaft 5061 is fixedly connected to the connecting rod 506, and the third fixed shaft 5061 is located at the midpoint of the length of the connecting rod 506. One end of the connecting rod 506 is sleeved on the first fixed shaft 5021, and one end of the top rod 505 is sleeved on the second fixed shaft 5031, while the other end is sleeved on the third fixed shaft 5061. The second slider 503 is fixed to the bottom of the second slide rail 5, and the top rod 505 is connected to the second slider 503 through the second fixed shaft 5031. The top rod 505 uses the second slider 503 as a fulcrum to support the connecting rod 506.

[0031] A top rod 505 is connected to a third fixed shaft 5061 fixedly connected in the middle of the connecting rod 506, and the connecting rod 506 is supported in the middle by the top rod 505. One end of the top rod 505 is sleeved on the first fixed shaft 5021, and rotates around the first fixed shaft 5021 as the first slider 502 rises and falls, causing the connecting rod 506 to swing, so that the flap assembly swings synchronously with the rise and fall of the first slider 502.

[0032] refer to Figures 3 to 6 As shown, a second handle 504 is fixedly connected to the first slider 502. The second handle 504 is inside a pair of second slide rails 5 and does not contact the second slide rails 5. The operator can operate the flap assembly to close and open synchronously by holding the second handle 504 and moving it up and down. Holding the second handle 504 and dragging the first slider 502 upward will cause the flap assembly to swing clockwise. Holding the second handle 504 and dragging the first slider 502 downward will cause the flap assembly to swing counterclockwise. When the second handle 504 is dragged upward a certain distance and the first slider 502 moves upward to a specific position, the connecting rod 506 is parallel to the second slide rail 5 and is placed inside the second slide rail 5. At this time, the top rod 505 is also parallel to the second slide rail 5 and partially overlaps with the connecting rod 506. At this time, the flap assembly is closed and folded inside the pair of second slide rails 5.

[0033] A tensioning device is installed between the first slide rail 4 and the second slide rail 5 according to existing technology. The tension can be adjusted when installing the first slide rail 4 and the second slide rail 5 to ensure that the second slide rail 5 will not slide down on its own without using the first handle 501. Furthermore, when the second slider 503 is installed on the second slide rail 5, the tensioning device can also be adjusted according to existing technology to ensure that the second slider 503 will not slide down on its own without using the second handle 504.

[0034] refer to Figures 4 to 5 As shown, a connecting plate 6 is installed on the connecting rod 506, and a fixing ring 601 is fixedly connected to the connecting plate 6. The fire extinguisher 7 is sleeved inside the fixing ring 601, and the fixing ring 601 fixes the fire extinguisher 7. Thus, the fire extinguisher 7 can move synchronously with the swing of the flap assembly, and the movement of the fire extinguisher 7 can be operated by controlling the second handle 504.

[0035] The sliding assembly, flip-plate assembly, connecting plate 6, and fixing ring 601 are all made of metal to prevent deformation and damage due to high temperature.

[0036] In actual use, when the EDM cutting equipment is working normally and no combustion occurs, the flap assembly is in the closed and folded state. At this time, the fire extinguisher 7 is parallel to the first slide rail 4 and the second slide rail 5. At the same time, most of the second slide rail 5 is stored in the first slide rail 4, and the first handle 501 is located at the highest position in the slide groove 401. At this time, the temperature-sensing nozzle of the fire extinguisher 7 slightly exceeds the lower end face of the working arm 1, which does not affect the normal use of the EDM cutting equipment.

[0037] When oil vapor combustion occurs inside the operating table 2 of the EDM equipment, if the combustion scale is large or it is discovered late, the high temperature of the combustion will trigger the temperature-sensing nozzle inside the fire extinguisher 7 to automatically spray dry powder to extinguish the fire.

[0038] When the fire is small or the operator discovers an abnormality in the early stage of the fire, the temperature-sensing nozzle of the fire extinguisher 7 cannot be triggered to spray. At this time, the operator holds the first handle 501 and drags it downward, which moves the second slide rail 5 inside the first slide rail 4 downward. At the same time, the flap assembly connected to the second slide rail 5 moves the fire extinguisher 7 downward synchronously, bringing the fire extinguisher 7 closer to the ignition point inside the operating table 2, increasing the probability of triggering the fire extinguisher 7.

[0039] If the temperature-sensing nozzle of fire extinguisher 7 extinguishes the fire, the operator can further pull down the second handle 504 to open the flap assembly counterclockwise. Simultaneously, this will cause the connecting plate 6 and fire extinguisher 7 connected to the flap assembly to swing counterclockwise, aligning the nozzle of fire extinguisher 7 with the processing tool on the operating table 2, enhancing the extinguishing effect and preventing further spread of the fire. If the temperature-sensing nozzle of fire extinguisher 7 is still not triggered at this point, this method can still be used to further bring the temperature-controlled nozzle of fire extinguisher 7 closer to and align it with the processing tool on the operating table 2, further increasing the probability of triggering the temperature-sensing nozzle on fire extinguisher 7.

[0040] After extinguishing the fire, hold the second handle 504 and pull it upwards to make the flap mechanism swing clockwise to close, completing the folding of the flap assembly. At the same time, the fire extinguisher 7 swings to be parallel to the first slide rail 4. Then, manually pull the first handle 501 upwards, causing the flap mechanism on the second slide rail 5 to move, which in turn causes the fire extinguisher 7 to move upwards, thus achieving the reset.

[0041] Compared with the prior art, the beneficial effect of this utility model is that it enables the electric spark automatic fire extinguisher installed on the working arm to be manually moved and deflected. When there is a small-scale fire of oil vapor and the fire extinguisher is not triggered, the operator can easily move the fire extinguisher into the operating platform and trigger the fire extinguisher at close range to extinguish the fire.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electric discharge machining apparatus comprising a work arm, an operating table and a machine table, characterized by, The working arm is provided with a sliding assembly, the sliding assembly comprises a first sliding rail and a second sliding rail, the second sliding rail is provided with a first sliding block and a second sliding block, the first sliding block and the second sliding block are provided with a flap assembly, and the flap assembly is provided with a fire extinguisher.

2. An electric discharge machine according to claim 1, characterized in that The second sliding rail is slidably connected in the first sliding rail.

3. An electric spark machining apparatus according to claim 2, wherein The second sliding rail is fixedly connected with a first handle, the first sliding rail is provided with a sliding groove matched with the first handle, and the first handle penetrates through the sliding groove.

4. An electric discharge machine according to claim 1, wherein The second sliding block is fixed at the bottom of the second sliding rail, the first sliding block is slidably connected on the second sliding rail, the first sliding block is fixedly connected with a first fixed shaft, and the second sliding block is fixedly connected with a second fixed shaft.

5. An electric discharge machine according to claim 1, wherein The flap assembly comprises a top rod and a connecting rod, the connecting rod is fixedly connected with a third fixed shaft, one end of the connecting rod is sleeved on the first fixed shaft, one end of the top rod is sleeved on the second fixed shaft, and the other end of the top rod is sleeved on the third fixed shaft.

6. An electric spark machining apparatus according to claim 5, wherein The third fixed shaft is arranged at the midpoint of the length of the connecting rod.

7. An electric spark machining apparatus according to claim 4, wherein The first sliding block is fixedly connected with a second handle, and the second handle is not in contact with the second sliding rail.

8. An electric spark machining apparatus according to claim 5, wherein The connecting rod is provided with a connecting plate.

9. An electric spark machining apparatus according to claim 8, wherein The connecting plate is fixedly connected with a fixed ring.

10. An electric spark machining apparatus according to claim 1, wherein The fire extinguisher is sleeved in the fixed ring.

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