Tungsten steel rod hot extrusion die

Abstract

The application provides a tungsten steel rod hot extrusion die and relates to the technical field of hot extrusion. The tungsten steel rod hot extrusion die comprises a bottom plate, a lower die is fixedly connected to the middle position of the top of the bottom plate through a fastening bolt, vertical columns are fixedly connected to the top of the bottom plate and located at the corners, a top plate is fixedly connected to the top end of the vertical column, a hydraulic cylinder is fixedly connected to the top of the top plate, a movable end of the hydraulic cylinder is fixedly connected with a mounting plate, the mounting plate is located below the top plate and is in sliding connection with the vertical column, and an upper die is fixedly connected to the bottom of the mounting plate through a fastening bolt. The side plate, sliding rod, push plate, spring, fixed rod, vertical rod, taper block, extrusion wheel, third magnetic block, fourth magnetic block and positioning block are arranged, so that the tungsten steel rod heated red and placed in the lower die is clamped and positioned, the tungsten steel rod is prevented from being tilted or deviated, and the quality of the mechanical part after extrusion is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hot extrusion, in particular to a tungsten steel rod hot extrusion die. BACKGROUND

[0002] Tungsten steel rod is a kind of high hardness, high strength alloy material which is made of hard alloy tungsten steel (WC) as the main raw material, plus other precious metals and paste phase by powder metallurgy method pressing sintering, widely used in national production and processing field, in mechanical manufacturing industry, usually need to use hot extrusion die to extrude the heated tungsten steel rod, so that it forms a mechanical part.

[0003] The existing hot extrusion die is placed in the hot extrusion die during the extrusion process, but the positioning structure of the tungsten steel rod is lack, so that the tungsten steel rod is tilted or offset, and then the quality of the mechanical part after extrusion is affected. SUMMARY

[0004] (I) Technical problems to be solved

[0005] In view of the defects of the prior art, the present application provides a tungsten steel rod hot extrusion die, which solves the problem that the existing hot extrusion die lacks tungsten steel rod positioning structure, so that the tungsten steel rod is tilted or offset, and then the quality of the mechanical part after extrusion is affected.

[0006] (II) Technical scheme

[0007] In order to achieve the above purpose, the present application is realized by the following technical scheme: a tungsten steel rod hot extrusion die, comprising a bottom plate, the top middle position of the bottom plate is fixedly connected with a lower die through a fastening bolt, the top of the bottom plate and the position of the four corners are all fixedly connected with a stand column, the top end of the stand column is fixedly connected with a top plate, the top of the top plate is fixedly connected with a hydraulic cylinder, the movable end of the hydraulic cylinder is fixedly connected with a mounting plate, the mounting plate is located below the top plate, and the mounting plate is slidingly connected with the stand column, the bottom of the mounting plate is fixedly connected with an upper die through a fastening bolt.

[0008] The side plate is internally connected with a sliding rod, one end of the sliding rod away from the lower mold is fixedly connected with a push plate, the circumference of the sliding rod is sleeved with a spring, and the spring is located between the push plate and the side plate, one side of the push plate close to the side plate is fixedly connected with a fixed rod, one end of the fixed rod away from the push plate is fixedly connected with a fourth magnetic block, one side of the side plate close to the push plate is fixedly connected with a third magnetic block, the circumference of the sliding rod is fixedly connected with a limiting plate, one side of the limiting plate close to the side plate is fixedly connected with a first magnetic block, one side of the side plate close to the limiting plate is fixedly connected with a second magnetic block, the top of the push plate is fixedly connected with a vertical rod, the top of the vertical rod is fixedly connected with a taper block, and the left and right side walls of the mounting plate are provided with extrusion wheels.

[0009] One end of the sliding rod away from the push plate is provided with a sliding hole, the inside of the sliding hole is connected with a sliding rod, one end of the sliding rod away from the sliding rod is fixedly connected with a positioning block, the inside of the sliding rod is provided with a positioning hole, and the top of the sliding rod is threadedly connected with a positioning bolt.

[0010] Preferably, the number of the side plate, the sliding rod, the push plate, the spring, the limiting plate and the taper block is two, and they are symmetrically arranged on the left and right sides of the lower mold.

[0011] Preferably, the number of the extrusion wheel is two, and the extrusion wheel is correspondingly arranged with the taper block.

[0012] Preferably, two fixed rods and two fourth magnetic blocks are arranged on each push plate and symmetrically arranged on the front and rear sides of the sliding rod, two third magnetic blocks and two second magnetic blocks are arranged on each side plate and symmetrically arranged on the front and rear sides of the sliding rod, two first magnetic blocks are arranged on each limiting plate and symmetrically arranged on the front and rear sides of the sliding rod, the fourth magnetic block is correspondingly arranged with the third magnetic block and used in cooperation with the third magnetic block, and the first magnetic block is correspondingly arranged with the second magnetic block and used in cooperation with the second magnetic block.

[0013] Preferably, two vertical rods and one taper block are arranged on the top of each push plate, and the two vertical rods are located between the push plate and the taper block.

[0014] Preferably, the number of the sliding hole, the adjusting rod and the positioning block is two, and they are correspondingly arranged with the sliding rod, a plurality of positioning holes are equidistantly arranged in the inside of each adjusting rod, and the positioning bolt is used in cooperation with the positioning hole.

[0015] Preferably, the side surface shape of the sliding rod, the sliding hole and the adjusting rod is square, the bottom surface shape of the positioning block is semicircular, and the positioning block is made of high-temperature-resistant material.

[0016] (Three) beneficial effects

[0017] The application provides a tungsten steel rod hot extrusion die. The tungsten steel rod hot extrusion die has the following beneficial effects:

[0018] 1、The application, by setting the side plate, sliding rod, push plate, spring, fixed rod, vertical rod, taper block, extrusion wheel, third magnetic block, fourth magnetic block and positioning block, the red-hot tungsten steel rod placed in the lower die is clamped and positioned, so that the tungsten steel rod is prevented from falling or deviating, and the quality of the extruded mechanical parts is ensured.

[0019] 2、The application, by setting the sliding hole, adjusting rod, positioning block, positioning hole and positioning bolt, the position of the positioning block is adjusted, and the tungsten steel rods with different diameters are positioned. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the overall structure of the tungsten steel rod hot extrusion die proposed in the application.

[0021] Figure 2 It is a bottom view of the tungsten steel rod hot extrusion die proposed in the application.

[0022] Figure 3 It is a middle structure sectional view. Figure 2

[0023] Figure 4 It is a middle A structure schematic view. Figure 2

[0024] It is a middle B structure schematic view. Figure 5 Figure 3

[0025] 1, bottom plate; 2, lower die; 3, vertical column; 4, top plate; 5, hydraulic cylinder; 6, mounting plate; 7, upper die; 8, side plate; 9, sliding rod; 10, push plate; 11, spring; 12, fixed rod; 13, limiting plate; 14, first magnetic block; 15, second magnetic block; 16, sliding hole; 17, adjusting rod; 18, positioning block; 19, positioning hole; 20, positioning bolt; 21, vertical rod; 22, taper block; 23, extrusion wheel; 24, third magnetic block; 25, fourth magnetic block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application. EMBODIMENT ​​​

[0027] As Figures 1-5 shown, the tungsten rod hot extrusion die provided by the embodiment of the present application comprises a base plate 1, a lower die 2 is fixedly connected to the middle position of the top of the base plate 1 through fastening bolts, the lower die 2 and an upper die 7 are both fixed through fastening bolts, which mainly facilitates hot extrusion of tungsten rods of different models, vertical columns 3 are fixedly connected to the top of the base plate 1 and located at the corners, a top plate 4 is fixedly connected to the top end of the vertical columns 3, a hydraulic cylinder 5 is fixedly connected to the top of the top plate 4, the hydraulic cylinder 5 is mainly controlled by an external hydraulic system (not shown in the figure), the hydraulic cylinder 5 is mainly used for controlling the upper die 7 to move up and down, the inner walls of the upper die 7 and the lower die 2 are both provided with forming cavities, an installation plate 6 is fixedly connected to the movable end of the hydraulic cylinder 5, the installation plate 6 is located below the top plate 4, and the installation plate 6 is slidingly connected with the vertical columns 3, the upper die 7 is fixedly connected to the bottom of the installation plate 6 through fastening bolts;

[0028] A side plate 8 is fixedly connected between the two vertical columns 3 connected in front and back, the side plate 8 is mainly used for installation of a sliding rod 9, the sliding rod 9 is slidingly connected inside the side plate 8, a push plate 10 is fixedly connected to the end of the sliding rod 9 away from the lower die 2, a spring 11 is sleeved on the circumferential surface of the sliding rod 9 and located between the push plate 10 and the side plate 8, when the positioning block 18 positions the red-hot tungsten rod, the spring 11 is in a compressed state, when the upper die 7 moves downward and contacts the tungsten rod, the extrusion wheel 23 extrudes the taper block 22, so that the fourth magnetic block 25 is separated from the third magnetic block 24, at this time, the spring 11 controls the push plate 10 to move away from the side plate 8, so as to move the positioning block 18 away from above the lower die 2, thereby avoiding that the positioning block 18 hinders extrusion between the upper die 7 and the lower die 2, a fixed rod 12 is fixedly connected to the side of the push plate 10 close to the side plate 8, the fourth magnetic block 25 is fixedly connected to the end of the fixed rod 12 away from the push plate 10, the third magnetic block 24 is fixedly connected to the side of the side plate 8 close to the push plate 10, the setting of the fourth magnetic block 25 and the third magnetic block 24 facilitates fixation of the push plate 10, so that the positioning block 18 positions the red-hot tungsten rod, the suction force of the fourth magnetic block 25 and the third magnetic block 24 is greater than the elastic force of the spring 11, a limiting plate 13 is fixedly connected to the circumferential surface of the sliding rod 9, the first magnetic block 14 is fixedly connected to the side of the limiting plate 13 close to the side plate 8, the second magnetic block 15 is fixedly connected to the side of the side plate 8 close to the limiting plate 13, the setting of the first magnetic block 14 and the second magnetic block 15 mainly fixes the loosened sliding rod 9, so as to avoid rebound under the action of the spring 11, the vertical rod 21 is fixedly connected to the top of the push plate 10, the taper block 22 is fixedly connected to the top of the vertical rod 21, the extrusion wheel 23 is arranged on the left and right side walls of the installation plate 6, the setting of the extrusion wheel 23 and the taper block 22 facilitates separation of the fourth magnetic block 25 and the third magnetic block 24 attracted together;

[0029] The end of the sliding rod 9 away from the push plate 10 is provided with a sliding hole 16, the inside of the sliding hole 16 is slidably connected with an adjusting rod 17, the end of the adjusting rod 17 away from the sliding rod 9 is fixedly connected with a positioning block 18, the inside of the adjusting rod 17 is provided with a positioning hole 19, the top of the sliding rod 9 is threadedly connected with a positioning bolt 20, and the positioning bolt 20 is located on one side of the limiting plate 13. By arranging the sliding hole 16, the adjusting rod 17, the positioning hole 19 and the positioning bolt 20, the position of the positioning block 18 can be adjusted, the tungsten steel rod with different diameters is positioned conveniently, and different models of the upper die 7 and the lower die 2 are used in cooperation. The specific operation is that the positioning bolt 20 is screwed into the inside of different positioning holes 19.

[0030] The number of the side plates 8, the sliding rods 9, the push plates 10, the springs 11, the limiting plates 13 and the taper blocks 22 is two, and they are symmetrically arranged on the left and right sides of the lower die 2. The number of the extrusion wheels 23 is two, and the extrusion wheels 23 are correspondingly arranged with the taper blocks 22. Each push plate 10 is provided with two fixed rods 12 and two fourth magnetic blocks 25, and they are symmetrically arranged on the front and back sides of the sliding rod 9. Each side plate 8 is provided with two third magnetic blocks 24 and two second magnetic blocks 15, and they are symmetrically arranged on the front and back sides of the sliding rod 9. Each limiting plate 13 is provided with two first magnetic blocks 14, and they are symmetrically arranged on the front and back sides of the sliding rod 9. The fourth magnetic block 25 is correspondingly arranged with the third magnetic block 24, and the fourth magnetic block 25 is used in cooperation with the third magnetic block 24. The first magnetic block 14 is correspondingly arranged with the second magnetic block 15, and the first magnetic block 14 is used in cooperation with the second magnetic block 15.

[0031] The top of each push plate 10 is provided with two vertical rods 21 and a taper block 22, and the two vertical rods 21 are located between the push plate 10 and the taper block 22. The number of the sliding hole 16, the adjusting rod 17 and the positioning block 18 is two, and they are correspondingly arranged with the sliding rod 9. The inside of each adjusting rod 17 is provided with multiple positioning holes 19 at equal distances. The positioning bolt 20 is used in cooperation with the positioning hole 19. The side surface shape of the sliding rod 9, the sliding hole 16 and the adjusting rod 17 is square, so that the sliding rod 9, the adjusting rod 17 and the positioning block 18 are prevented from rotating. The shape of the bottom surface of the positioning block 18 is semicircular, and the positioning block 18 is made of high-temperature-resistant material.

[0032] Working principle: in use, first of all, the cutting machine is used to cut the tungsten steel rod into the required length, and the tungsten steel rod is red, then the red tungsten steel rod is placed in the inside of the lower mold 2, then the two hands push the push plate 10 on both sides, the positioning block 18 on both sides positions the red tungsten steel rod, at this time the third magnetic block 24 and the fourth magnetic block 25 are adsorbed together, the mounting plate 6 drives the upper mold 7 to move down through the control of the hydraulic cylinder 5, when the upper mold 7 contacts the tungsten steel rod, the extrusion wheel 23 extrudes the taper block 22, with the mounting plate 6 continuing to move down, the taper block 22 moves away from the side plate 8 under the extrusion of the extrusion wheel 23, so that the third magnetic block 24 and the fourth magnetic block 25 are separated, at the same time the positioning block 18 automatically moves away from above the lower mold 2 under the action of the spring 11, the limiting plate 13 is fixed with the side plate 8 under the action of the first magnetic block 14 and the second magnetic block 15, to avoid the rebound of the sliding rod 9, finally the upper mold 7 is adhered with the lower mold 2 to complete the hot extrusion of the tungsten steel rod under the action of the hydraulic cylinder 5, after the extrusion is completed, the upper mold 7 restores to the initial position under the action of the hydraulic cylinder 5, finally the mechanical product after extrusion is taken out.

[0033] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A hot extrusion die for tungsten steel bars comprising a base plate (1), characterized in that: The top middle position of the bottom plate (1) is fixedly connected with a lower mold (2) through fastening bolts, the top of the bottom plate (1) and the positions of the four corners are all fixedly connected with stand columns (3), the top ends of the stand columns (3) are fixedly connected with a top plate (4), the top of the top plate (4) is fixedly connected with a hydraulic cylinder (5), the movable end of the hydraulic cylinder (5) is fixedly connected with a mounting plate (6), the mounting plate (6) is below the top plate (4) and is in sliding connection with the stand columns (3), and the bottom of the mounting plate (6) is fixedly connected with an upper mold (7) through fastening bolts. The two stand columns (3) connected in front and back are fixedly connected with side plates (8), the interiors of the side plates (8) are in sliding connection with slide rods (9), one end of the slide rod (9) away from the lower mold (2) is fixedly connected with a push plate (10), the circumferential surface of the slide rod (9) is sleeved with springs (11), the springs (11) are between the push plate (10) and the side plates (8), one side of the push plate (10) close to the side plates (8) is fixedly connected with fixed rods (12), one end of the fixed rod (12) away from the push plate (10) is fixedly connected with fourth magnetic blocks (25), one side of the side plates (8) close to the push plate (10) is fixedly connected with third magnetic blocks (24), the circumferential surface of the slide rod (9) is fixedly connected with limiting plates (13), one side of the limiting plates (13) close to the side plates (8) is fixedly connected with first magnetic blocks (14), one side of the side plates (8) close to the limiting plates (13) is fixedly connected with second magnetic blocks (15), the top of the push plate (10) is fixedly connected with vertical rods (21), the top of the vertical rod (21) is fixedly connected with taper blocks (22), and the left and right side walls of the mounting plate (6) are all provided with extrusion wheels (23). One end of the slide rod (9) away from the push plate (10) is provided with a sliding hole (16), the sliding hole (16) is in sliding connection with adjusting rods (17), one end of the adjusting rod (17) away from the slide rod (9) is fixedly connected with positioning blocks (18), the interior of the adjusting rod (17) is provided with positioning holes (19), the top of the slide rod (9) is in threaded connection with positioning bolts (20), and the positioning bolts (20) are located at one side of the limiting plates (13), and the number of the extrusion wheels (23) is two, and the extrusion wheels (23) are correspondingly arranged with the taper blocks (22).

2. A hot extrusion die for tungsten rod according to claim 1, characterized in that: The number of the side plates (8), the slide rods (9), the push plates (10), the springs (11), the limiting plates (13) and the taper blocks (22) is two, and they are symmetrically arranged on the left and right sides of the lower mold (2).

3. The hot extrusion die for tungsten rod according to claim 1, characterized in that: Two fixed rods (12) and two fourth magnetic blocks (25) are arranged on each push plate (10) and symmetrically arranged on the front and rear sides of the slide rod (9), two third magnetic blocks (24) and two second magnetic blocks (15) are arranged on each side plate (8) and symmetrically arranged on the front and rear sides of the slide rod (9), two first magnetic blocks (14) are arranged on each limiting plate (13) and symmetrically arranged on the front and rear sides of the slide rod (9), the fourth magnetic block (25) is correspondingly arranged with the third magnetic block (24) and is used in cooperation with the third magnetic block (24), and the first magnetic block (14) is correspondingly arranged with the second magnetic block (15) and is used in cooperation with the second magnetic block (15).

4. The hot extrusion die for tungsten rod according to claim 1, characterized in that: Two vertical rods (21) and a taper block (22) are arranged on the top of each push plate (10), and the two vertical rods (21) are located between the push plate (10) and the taper block (22).

5. The hot extrusion die for tungsten rod according to claim 1, characterized in that: The number of the slide hole (16), the adjusting rod (17) and the positioning block (18) is two, and is correspondingly arranged with the slide rod (9), a plurality of positioning holes (19) are equidistantly arranged in the inside of each adjusting rod (17), and the positioning bolt (20) is used in cooperation with the positioning hole (19).

6. The hot extrusion die for tungsten rod according to claim 1, characterized in that: The side surface shape of the slide rod (9), the slide hole (16) and the adjusting rod (17) is square, the bottom surface shape of the positioning block (18) is semicircular, and the positioning block (18) is made of high-temperature-resistant material.

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