Bar preheating and feeding mechanism for magnesium alloy hot extrusion

Abstract

The utility model relates to the technical field of magnesium alloy machining equipment, in particular to a magnesium alloy hot extrusion bar preheating feeding mechanism which comprises a raw material frame, an electric heating furnace, a feeding clamping jaw and a pushing device. The raw material frame and the feeding clamping jaw are installed at a feeding port of the electric heating furnace, and the electric heating furnace is arranged at a feeding port of the pushing device. According to the bar preheating and feeding mechanism for magnesium alloy hot extrusion, automatic feeding of magnesium alloy bars can be achieved, the feeding risk after the bars are heated can be effectively avoided, and meanwhile the feeding efficiency of magnesium alloy extrusion machining is effectively improved; the raw material frame is used for placing bars to be heated, the feeding clamping jaw clamps the bars on the raw material frame and sends the bars into the electric heating furnace, the electric heating furnace heats the bars, the heated bars are sent to the pushing device by the feeding clamping jaw, and the pushing device sends the bars into extrusion equipment.

Description

Technical Field

[0001] The present application relates to the technical field of magnesium alloy processing equipment, and in particular to a bar preheating and feeding mechanism for hot extrusion of magnesium alloys. Background Art

[0002] During the hot extrusion forming process of magnesium alloy, the segmented magnesium alloy bar needs to be placed in an electric heating furnace for preheating first. The preheating can improve the ductility of the magnesium alloy bar, which facilitates the subsequent extrusion forming.

[0003] After preheating the bar, workers manually open the electric heating furnace, lift the bar from the furnace with a handheld clamp, and then manually feed it into the feed port of the extrusion equipment. Due to the heavy bar, loading the magnesium alloy bar is time-consuming and laborious. Furthermore, the high temperature of the heated magnesium alloy bar makes manual gripping of the material risky. Utility Model Content

[0004] The present application provides a preheating and feeding mechanism for magnesium alloy hot extrusion bars, which can realize automatic feeding of magnesium alloy bars and effectively avoid the feeding risks after the bars are heated. At the same time, it effectively improves the feeding efficiency of magnesium alloy extrusion processing and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a preheating and loading mechanism for magnesium alloy bar material for hot extrusion, comprising a raw material rack, an electric heating furnace, a feeding clamp and a pushing device; the raw material rack and the feeding clamp are installed at the feed port of the electric heating furnace, and the electric heating furnace is arranged at the feed port of the pushing device.

[0006] The pushing device includes a support frame, an upper surface of the support frame is equipped with an inclined slide, the end of the slide is equipped with a V-shaped plate, the upper surface of the support frame is equipped with a hydraulic telescopic rod three and a vertical frame, the upper end of the outer surface of the vertical frame is equipped with a hydraulic telescopic rod two, and the telescopic end of the hydraulic telescopic rod three is connected to the V-shaped plate through a lifting bracket.

[0007] Preferably, the raw material rack includes a base, and the upper surface of the base is provided with a Y-shaped bracket arranged symmetrically front to back.

[0008] Preferably, the number of the Y-shaped brackets is no less than two.

[0009] Preferably, the electric heating furnace includes a cylindrical furnace body, an electric heating wire is provided inside the cylindrical furnace body, a guide rail is installed at the lower end of the outer side surface of the cylindrical furnace body, a slider is slidably connected to the guide rail, a furnace door is installed on the upper surface of the slider, and a U-shaped refractory bracket is fixed on the furnace door.

[0010] Preferably, a groove is provided on the upper end of the outer side surface of the U-shaped refractory bracket.

[0011] Preferably, the feeding clamp comprises a linear motor, a hydraulic telescopic rod 1 is mounted on the slide of the linear motor, and the telescopic end of the hydraulic telescopic rod 1 is connected to the electric-controlled clamp via a connecting plate.

[0012] Preferably, a gantry is provided on the outer side of the chute near the V-shaped plate, an electric telescopic rod is installed on the gantry, a baffle is installed at the telescopic end of the electric telescopic rod, and the baffle is arranged in the chute.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This magnesium alloy hot extrusion bar preheating feeding mechanism can realize the automatic feeding of magnesium alloy bars, and can effectively avoid the feeding risk after the bars are heated, while effectively improving the feeding efficiency of magnesium alloy extrusion processing;

[0015] 2. The raw material rack is used to place the bar to be heated. The feeding claws pick up the bar on the raw material rack and send it into the electric heating furnace. The electric heating furnace heats the bar. After heating, the bar is sent to the pushing device by the feeding claws. The pushing device sends the bar into the extrusion equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 Schematic diagram of the structure of the raw material rack;

[0018] Figure 3 It is a structural diagram of an electric heating furnace;

[0019] Figure 4 It is a structural diagram of the feeding clamp;

[0020] Figure 5 It is a structural diagram of the pushing device;

[0021] Figure 6 It is a top view of the pushing device.

[0022] In the figure: 1 raw material rack, 11 Y-shaped bracket, 12 base, 2 electric heating furnace, 21 cylindrical furnace body, 22 groove, 23 U-shaped refractory bracket, 24 furnace door, 25 slide, 26 guide rail, 27 electric telescopic rod, 3 feeding clamp, 31 electric clamp, 32 connecting plate, 33 hydraulic telescopic rod 1, 34 linear motor, 4 pushing device, 41 slide, 42 electric telescopic rod, 43 baffle, 44 vertical frame, 45 hydraulic telescopic rod 2, 46 gantry, 47 V-shaped plate, 48 lifting bracket, 49 hydraulic telescopic rod 3, 410 support frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] In the description of this application, when a feature is referred to as being "set", "fixed" or "connected" to another feature, it may be directly set, fixed or connected to the other feature, or indirectly set, fixed or connected to the other feature.

[0025] See also Figure 1-6 The present application provides the following technical solution: a preheating and loading mechanism for magnesium alloy hot extrusion bars, comprising a raw material rack 1, an electric heating furnace 2, a feeding clamp 3 and a pushing device 4; the raw material rack 1 and the feeding clamp 3 are installed at the feed port of the electric heating furnace 2, and the electric heating furnace 2 is arranged at the feed port of the pushing device 4.

[0026] Specifically, the raw material rack 1 is used to place the rods to be heated. The feeding clamp 3 clamps the rods on the raw material rack 1 and sends them into the electric heating furnace 2. The electric heating furnace 2 heats the material rods. After heating, the material rods are sent to the pushing device 4 by the feeding clamp 3, and the pushing device 4 sends the material rods into the extrusion equipment.

[0027] The pushing device 4 includes a support frame 410, the upper surface of the support frame 410 is installed with an inclined slide 41, the end of the slide 41 is provided with a V-shaped plate 47, the upper surface of the support frame 410 is installed with a hydraulic telescopic rod 3 49 and a vertical frame 44, the upper end of the outer surface of the vertical frame 44 is provided with a hydraulic telescopic rod 2 45, and the telescopic end of the hydraulic telescopic rod 3 49 is connected to the V-shaped plate 47 through a lifting bracket 48.

[0028] Specifically, the feeding clamp 3 places the magnesium alloy material rod into the slide 41, and the material rod slides into the V-shaped plate 47 through the slide 41. Then the hydraulic telescopic rod three 49 is extended to lift the V-shaped plate 47 and send the rod material to the feed port of the extruder. The hydraulic telescopic rod two 45 is extended to push the rod material into the feed port of the extruder.

[0029] Furthermore, the raw material rack 1 includes a base 12 , and a Y-shaped bracket 11 is provided on the upper surface of the base 12 in a front-to-back symmetrical manner.

[0030] Specifically, the Y-shaped bracket 11 is used to place the magnesium alloy bar to be heated.

[0031] Furthermore, the number of the Y-shaped brackets 11 is no less than two.

[0032] Specifically, two rows of Y-shaped brackets 11 are evenly distributed in a straight line on the front and back sides of the upper surface of the base 12 .

[0033] Furthermore, the electric heating furnace 2 includes a cylindrical furnace body 21, an electric heating wire is provided inside the cylindrical furnace body 21, a guide rail 26 is installed at the lower end of the outer side surface of the cylindrical furnace body 21, a slider 25 is slidably connected to the guide rail 26, a furnace door 24 is installed on the upper surface of the slider 25, and a U-shaped refractory bracket 23 is fixed on the furnace door 24.

[0034] Specifically, the magnesium alloy rod to be heated is placed in the U-shaped refractory support 23, and then the furnace door 24 is closed to feed the rod into the cylindrical furnace body 21, and the electric heating wire inside the cylindrical furnace body 21 is started to preheat the rod.

[0035] More specifically, the outer side surface of the slider 25 is connected to the guide rail 26 via an electrically controlled telescopic rod 27 , and the electrically controlled telescopic rod 27 controls the opening and closing of the furnace door 24 .

[0036] Furthermore, a groove 22 is provided at the upper end of the outer surface of the U-shaped refractory bracket 23 .

[0037] Specifically, after the bar is heated, the electrically controlled telescopic rod 27 is extended to push the U-shaped refractory bracket 23 out of the cylindrical furnace body 21, and then the feeding clamp 3 passes through the groove 22 and clamps the outer surface of the bar to lift it.

[0038] Furthermore, the feeding clamp 3 includes a linear motor 34 , a hydraulic telescopic rod 33 is installed on the slide of the linear motor 34 , and the telescopic end of the hydraulic telescopic rod 33 is connected to the electric-controlled clamp 31 through a connecting plate 32 .

[0039] Specifically, the linear motor 34 controls the left and right movement of the electric-controlled clamping claw 31 in the air, and the hydraulic telescopic rod 33 controls the lifting and lowering of the electric-controlled clamping claw 31.

[0040] More specifically, the movement of the two clamping heads of the electric-controlled clamping jaw 31 is controlled by two hydraulic telescopic rods, one end of the hydraulic telescopic rod is fixed, and the other end is connected to the clamping head.

[0041] Furthermore, a gantry 46 is provided on the outer side of the chute 41 near the V-shaped plate 47 , and an electric telescopic rod 42 is installed on the gantry 46 . A baffle 43 is installed at the telescopic end of the electric telescopic rod 42 , and the baffle 43 is arranged in the chute 41 .

[0042] Specifically, when the rod is shorter, in order to prevent the rod from reversing when sliding down the slide 41, the baffle 43 needs to be blocked in front of the V-shaped plate 47 first. When the rod is upright on the baffle 43, it is necessary to manually hold a long pole to flip it over, and then lift the baffle 43, and the rod enters the V-shaped plate 47.

[0043] More specifically, in an emergency, the baffle 43 falls down to block the V-shaped plate 47 to prevent the bar material from entering the interior of the V-shaped plate 47.

[0044] During use: the rods to be heated are placed on the Y-shaped bracket 11 in sequence, and then the feeding clamp 3 is started. The linear motor 34 moves the electric clamp 31 to the top of the Y-shaped bracket 11, and the hydraulic telescopic rod 33 is extended to drive the electric clamp 31 to move downward. When the electric clamp 31 is clamped on the outer surface of the rod, the electric clamp 31 clamps to complete the grabbing of the rod, and then the hydraulic telescopic rod 33 contracts to lift the rod, and then the linear motor 34 moves the electric clamp 31 to the feed port of the electric heating furnace 2.

[0045] The electric telescopic rod 27 is extended to pull the U-shaped refractory support 23 out of the interior of the cylindrical furnace body 21, and then the hydraulic telescopic rod 33 is extended to place the rod into the interior of the U-shaped refractory support 23. After the discharge is completed, the feeding clamp 3 is removed, and the electric telescopic rod 27 is contracted to feed the rod into the cylindrical furnace body 21 for preheating. After the preheating is completed, the electric telescopic rod 27 is extended again to pull out the U-shaped refractory support 23, and the linear motor 34 and the hydraulic telescopic rod 22 drive the electric clamp 31 to grab the heated rod and send it to the feeding port of the pushing device 4.

[0046] The electrically controlled gripper 31 places the heated bar material on the chute 41, and the bar material rolls down the chute 41 to the inside of the V-shaped plate 47. Then the hydraulic telescopic rod 3 49 is extended to lift the V-shaped plate 47 together with the bar material. When the bar material reaches the feed port of the extruder, the hydraulic telescopic rod 2 45 is extended to push the bar material into the inside of the extruder.

[0047] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A bar preheating and feeding mechanism for hot extrusion of magnesium alloy, characterized by: It comprises a raw material rack (1), an electric heating furnace (2), a feeding clamp (3) and a pushing device (4); the raw material rack (1) and the feeding clamp (3) are installed at the feeding port of the electric heating furnace (2), and the electric heating furnace (2) is arranged at the feeding port of the pushing device (4); The pushing device (4) includes a support frame (410), an upper surface of the support frame (410) is provided with an inclined slide (41), the end of the slide (41) is provided with a V-shaped plate (47), the upper surface of the support frame (410) is provided with a hydraulic telescopic rod (49) and a vertical frame (44), the upper end of the outer surface of the vertical frame (44) is provided with a hydraulic telescopic rod (45), and the telescopic end of the hydraulic telescopic rod (49) is connected to the V-shaped plate (47) through a lifting bracket (48).

2. The magnesium alloy hot extrusion bar preheating and feeding mechanism according to claim 1, characterized in that: The raw material rack (1) comprises a base (12), and the upper surface of the base (12) is provided with a Y-shaped bracket (11) arranged symmetrically in the front and rear directions.

3. The magnesium alloy hot extrusion bar preheating and feeding mechanism according to claim 2, characterized in that: The number of the Y-shaped brackets (11) is no less than two.

4. The magnesium alloy hot extrusion bar preheating and feeding mechanism according to claim 1, characterized in that: The electric heating furnace (2) includes a cylindrical furnace body (21), an electric heating wire is provided inside the cylindrical furnace body (21), a guide rail (26) is installed at the lower end of the outer side surface of the cylindrical furnace body (21), a slider (25) is slidably connected to the guide rail (26), a furnace door (24) is installed on the upper surface of the slider (25), and a U-shaped refractory bracket (23) is fixed to the furnace door (24).

5. The magnesium alloy hot extrusion bar preheating and feeding mechanism according to claim 4, characterized in that: A groove (22) is provided on the upper end of the outer surface of the U-shaped refractory bracket (23).

6. The magnesium alloy hot extrusion bar preheating and feeding mechanism according to claim 1, characterized in that: The feeding clamp (3) includes a linear motor (34), a hydraulic telescopic rod (33) is installed on the slide of the linear motor (34), and the telescopic end of the hydraulic telescopic rod (33) is connected to the electric control clamp (31) through a connecting plate (32).

7. The magnesium alloy hot extrusion bar preheating and feeding mechanism according to claim 1, characterized in that: A gantry (46) is provided on the outer side of the chute (41) near the V-shaped plate (47), an electric telescopic rod (42) is installed on the gantry (46), a baffle (43) is installed at the telescopic end of the electric telescopic rod (42), and the baffle (43) is arranged in the chute (41).

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