Fireproof structure for horizontal machining center for magnesium alloy part machining

Abstract

The fireproof structure for the horizontal machining center for magnesium alloy part machining comprises a machine frame, a rear fixing plate is arranged on the rear portion of the left side of the machine frame, and a machining cavity is formed between the rear fixing plate and a plate body on the left side of the machine frame; a mounting groove extending rightwards is formed in the upper portion of a plate body on the left side of the rack, an air guide cylinder is fixed to the middle of the right side wall of the mounting groove, and the air guide cylinder communicates with an air outlet connecting through hole formed in the middle of the right side wall of the mounting groove; a temperature sensor is fixed on a plate body on the left side of the rack on one side of the mounting groove, the sensing end of the temperature sensor extends out of the left side wall of the plate body on the left side of the rack, and the temperature sensor is close to the mounting groove. The temperature of the machining cavity can be monitored at any time, when the detected temperature is too high, cooling liquid can be sprayed from the nozzle to achieve cooling, and fire is prevented.

Description

Technical fields:

[0001] This utility model relates to the technical field of magnesium alloy processing equipment, and more specifically to a fireproof structure for a horizontal machining center used for processing magnesium alloy parts. Background technology:

[0002] After casting, existing magnesium alloy products require machining operations. The current method is to use machining centers for machining. However, due to the ignition point of magnesium alloy, when the temperature generated during machining exceeds its ignition point, it will catch fire, affecting the safety of the surrounding area. Existing machining centers use coolant to cool the machining area, thereby preventing high temperatures at the machining location and also preventing problems such as tool wear.

[0003] However, during processing, if problems such as coolant system failure prevent coolant from being sprayed to cool the processed area, the temperature will rise, posing a fire risk. Currently, there is no monitoring or fireproofing structure for this situation. Utility Model Content:

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fireproof structure for a horizontal machining center for processing magnesium alloy parts. It can monitor the temperature of the machining cavity at all times. When the detected temperature is too high, it can spray coolant from the nozzle to cool down and prevent fire.

[0005] The solution of this utility model to the aforementioned technical problem is:

[0006] A fireproof structure for a horizontal machining center for processing magnesium alloy parts includes a frame, wherein a rear fixing plate is provided at the rear of the left side of the frame, and a machining cavity is formed between the rear fixing plate and the plate on the left side of the frame.

[0007] The upper part of the plate on the left side of the frame is formed with a mounting groove extending to the right. An air guide tube is fixed in the middle of the right side wall of the mounting groove. The air guide tube communicates with the air outlet connection hole formed in the middle of the right side wall of the mounting groove.

[0008] A temperature sensor is fixed on the left side plate of the frame at one side of the mounting groove. The sensing end of the temperature sensor extends out of the left side wall of the left side plate of the frame, and the temperature sensor is close to the mounting groove.

[0009] An upper mounting housing is fixed to the upper part of the plate on the left side of the frame, and multiple omnidirectional nozzles are fixed to the bottom plate of the upper mounting housing.

[0010] The air guide tube is a conical tube with a smaller inner diameter at the right end and a larger inner diameter at the left end. A filter screen is covered on the left end face of the air guide tube. An outer annular fixing ring presses against the left end of the edge of the filter screen. The right end of the edge of the filter screen presses against the left end face of the radially extending edge formed on the outer wall of the left end of the air guide tube. The outer annular fixing ring, the edge of the filter screen, and the radially extending edge formed on the outer wall of the left end of the air guide tube are fixedly connected by multiple bolts.

[0011] The outstanding effect of this utility model is:

[0012] It can monitor the temperature in the machining cavity at all times. When it detects that the temperature is too high, it can spray coolant from the nozzle to cool down the cavity and prevent fire. Attached image description:

[0013] Figure 1 This is a partial structural schematic diagram of the present invention;

[0014] Figure 2 This is a partial structural diagram of the angle-changing part of this utility model;

[0015] Figure 3 This is a partial cross-sectional view of the air duct.

[0016] Figure 4 This is a schematic diagram of the control principle;

[0017] Figure 5 This is a simplified schematic diagram showing the top view of the machining cavity. Detailed implementation method:

[0018] For example, see below. Figures 1 to 4 As shown, a fireproof structure for a horizontal machining center for processing magnesium alloy parts includes a frame 10. A rear fixing plate 11 is provided at the rear of the left side of the frame 10. A processing cavity is formed between the rear fixing plate 11, the left side plate of the frame 10, and the fan-shaped bottom below. A stretchable metal curtain is installed on the left side of the rear fixing plate 11. During processing, the metal curtain is pulled out to the front of the left side plate of the frame 10, and it can be used to block the process. This is a known structure and will not be described in detail here.

[0019] Furthermore, the upper part of the left side plate of the frame 10 is formed with a rightward extending mounting groove 12. A guide cylinder 13 is fixed in the middle of the right side wall of the mounting groove 12. The guide cylinder 13 communicates with the exhaust connection hole 131 formed in the middle of the right side wall of the mounting groove 12. An exhaust system is installed in the frame 10 at the right side of the exhaust connection hole 131. The fan of the exhaust system operates to achieve air extraction and exhaust. This is a conventional structure and will not be described in detail here.

[0020] A temperature sensor 1 is fixed on the left side plate of the frame 10 at one side of the mounting groove 12. The sensing end of the temperature sensor 1 extends out of the left side wall of the left side plate of the frame 10, and the temperature sensor 1 is close to the mounting groove 12. This arrangement allows it to sense the temperature of the air sucked out at the mounting groove 12 more closely, thereby enabling better sensing of the processing temperature in the processing chamber.

[0021] An upper mounting housing 14 is fixed to the upper part of the plate on the left side of the frame 10, and multiple universal nozzles 2 are fixed on the bottom plate of the upper mounting housing 14.

[0022] The two nozzles 2 are positioned above the front and rear sides of the temperature sensor 1.

[0023] At least two universal nozzles 2 are fixed on the bottom plate of the upper mounting housing 14 above the front of the mounting groove 12.

[0024] A universal nozzle 2 is fixed to the middle of the front wall surface on the left side of the rear fixing plate 11.

[0025] Furthermore, the left end of the mounting groove 12 is a large rectangular opening, the right end is a small rectangular opening, and the four side plates between the large rectangular opening and the small rectangular opening are oblique side plates.

[0026] The air guide cylinder 13 is conical, with a smaller inner diameter at the right end and a larger inner diameter at the left end. A filter screen 3 covers the left end face of the air guide cylinder 13. An outer annular fixing ring 4 presses against the left end of the edge of the filter screen 3, and the right end of the edge of the filter screen 3 presses against the left end face of the radially extending edge formed on the outer wall of the left end of the air guide cylinder 13. The outer annular fixing ring 4, the edge of the filter screen 3, and the radially extending edge formed on the outer wall of the left end of the air guide cylinder 13 are fixedly connected by multiple bolts. The filter screen 3 can filter the discharged gas. After a certain period of use, the outer annular fixing ring 4 can be removed to replace the filter screen 3, making replacement convenient.

[0027] The outer annular fixing ring 4 has a transverse forming strip 41 formed in the middle, and the two ends of the transverse forming strip 41 are formed on the inner sidewall of the outer annular fixing ring 4.

[0028] A through groove is formed in the middle of the plate on the left side of the frame 10 below the mounting groove 12, and the cutting tool 5 on the processing body installed inside the frame 10 faces the through groove.

[0029] In this embodiment, the temperature sensor 1 is electrically connected to the control host via an electrical connection line. At the same time, all nozzles 2 are connected to the outlet of the liquid distributor (which can be a liquid distributor from an air conditioner or a liquid distributor from a heating and ventilation system, etc., and its main feature is that it has one inlet and multiple outlets, which will not be described in detail here). The inlet of the liquid distributor is connected to one end of the delivery pump via a connection line, and the other end of the delivery pump is connected to the storage tank via a connection line (the storage tank, delivery pump, and control host can be installed on the outside of the frame 10. The storage tank and delivery pump are not the same system as the storage tank and delivery pump in the coolant system of the machining center. They are an independently set system). The delivery pump is electrically connected to the control host via an electrical connection line. At the same time, the control software in the control host can set the control temperature, for example, set the temperature to 450℃ (and then reduce it by about 100℃ according to the actual ignition point of the magnesium alloy).

[0030] During operation, the air duct 13 continuously exhausts gas. As the gas flows, it transfers heat to the surrounding environment, causing the temperature sensor 1 to detect a temperature close to that of the exhaust gas. The sensor continuously transmits the sensing signal to the control host. When the sensed temperature reaches 450°C or higher, the control host controls the corresponding delivery pump to operate, causing coolant to spray out from all nozzles 2. This cools the space in the processing chamber and the magnesium alloy products being processed there, thus reducing the temperature of the magnesium alloy and preventing it from burning or catching fire, achieving a fireproof effect. In addition, an alarm is electrically connected to the control host. When the temperature reaches 450°C or higher, the alarm will also be activated to remind the operator to check and inspect the cooling system and other components.

[0031] In this embodiment, it is necessary to check the liquid level in the storage tank from time to time to ensure that the liquid level is sufficient.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fireproof structure for a horizontal machining center used for machining magnesium alloy parts, comprising a frame (10), characterized in that: A rear fixing plate (11) is provided at the rear of the left side of the frame (10), and a processing cavity is formed between the rear fixing plate (11) and the plate on the left side of the frame (10). The upper part of the plate on the left side of the frame (10) is formed with a mounting groove (12) extending to the right. A guide cylinder (13) is fixed in the middle of the right side wall of the mounting groove (12). The guide cylinder (13) communicates with the air outlet connection through hole (131) formed in the middle of the right side wall of the mounting groove (12). A temperature sensor (1) is fixed on the left side plate of the frame (10) at one side of the mounting groove (12). The sensing end of the temperature sensor (1) extends out of the left side wall of the left side plate of the frame (10) and the temperature sensor (1) is close to the mounting groove (12).

2. The fireproof structure for a horizontal machining center for processing magnesium alloy parts according to claim 1, characterized in that: The upper part of the plate on the left side of the frame (10) is fixed with an upper mounting housing (14), and a plurality of universal nozzles (2) are fixed on the bottom plate of the upper mounting housing (14).

3. The fireproof structure for a horizontal machining center for processing magnesium alloy parts according to claim 2, characterized in that: The two nozzles (2) are located above the front and rear sides of the temperature sensor (1).

4. The fireproof structure for a horizontal machining center for processing magnesium alloy parts according to claim 1, characterized in that: At least two universal nozzles (2) are fixed on the bottom plate of the upper mounting housing (14) above the front of the mounting groove (12).

5. The fireproof structure for a horizontal machining center for processing magnesium alloy parts according to claim 1, characterized in that: A universal nozzle (2) is fixed to the middle of the front wall surface on the left side of the rear fixing plate (11).

6. The fireproof structure for a horizontal machining center for processing magnesium alloy parts according to claim 1, characterized in that: The left end of the mounting groove (12) is a large rectangular opening, the right end is a small rectangular opening, and the four side plates between the large rectangular opening and the small rectangular opening are oblique side plates.

7. The fireproof structure for a horizontal machining center for processing magnesium alloy parts according to claim 1, characterized in that: The air guide cylinder (13) is a conical cylinder with a smaller inner diameter at the right end and a larger inner diameter at the left end. A filter screen (3) is covered on the left end face of the air guide cylinder (13). An outer annular fixing ring (4) presses against the left end of the edge of the filter screen (3). The right end of the edge of the filter screen (3) presses against the left end face of the radial extension edge formed on the outer wall of the left end of the air guide cylinder (13). The outer annular fixing ring (4), the edge of the filter screen (3), and the radial extension edge formed on the outer wall of the left end of the air guide cylinder (13) are fixedly connected by multiple bolts.

8. The fireproof structure for a horizontal machining center for processing magnesium alloy parts according to claim 7, characterized in that: The outer annular fixing ring (4) has a transverse forming strip (41) formed in the middle, and the two ends of the transverse forming strip (41) are formed on the inner sidewall of the outer annular fixing ring (4).

9. The fireproof structure for a horizontal machining center for processing magnesium alloy parts according to claim 1, characterized in that: A through groove is formed in the middle of the plate on the left side of the frame (10) below the mounting groove (12), and the cutting tool (5) on the processing body installed inside the frame (10) faces the through groove.

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