Anti-deviation metal forging die

Abstract

The utility model discloses an anti-deviation metal forging die, which relates to the technical field of forging dies, and comprises an upper fixing plate and a lower fixing plate, the middle position of the bottom end of the upper fixing plate is fixedly connected with an upper die, and the middle position of the top end of the lower fixing plate is fixedly connected with a lower die. And a positioning assembly capable of stabilizing the blank and preventing the blank from deviating is arranged in the lower die. According to the anti-deviation metal forging die, through the arrangement of the pin rod groove, the positioning pin rod, the ejector rod groove, the ejector rod, the ejector block, the internal thread fixing cap, the electromagnet, the external wire and the wire groove, when the anti-deviation metal forging die is used, the electromagnet is electrified to generate magnetism to generate magnetic force to adsorb a blank, so that the blank is always located in the middle position, the die is not prone to deviation when closed, and the pin rod groove is matched with the positioning pin rod; the upper die and the lower die can be accurately folded, the function of positioning the blank to prevent rolling deviation is achieved, and the problem that the device does not have the function of positioning the blank to prevent rolling deviation is solved.

Description

Technical Field

[0001] This utility model relates to the field of forging die technology, specifically to a metal forging die that prevents deviation. Background Technology

[0002] Forging is a common metal workpiece processing technology, which is divided into cold forging and hot forging. Both require the use of forging dies to process the billet and make it quickly into shape.

[0003] Most metal forging dies commonly found on the market today are similar in overall structure. Taking alloy steel workpiece forging as an example, the billet is placed horizontally in the die, which consists of upper and lower dies. The upper die, driven by a hydraulic mechanism, closes with the lower die to extrude the billet. However, in actual use, there are some functional deficiencies and room for improvement. For instance, when the billet is placed, its shape, such as a cylindrical or spherical billet, can cause it to roll and shift, not being centered on the lower die. This can easily lead to uneven force distribution when the upper die presses down, affecting the final product quality. The die also lacks the function of positioning the billet to prevent rolling and shifting.

[0004] Now, a novel anti-deviation metal forging die is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a metal forging die that prevents offset, thereby solving the problem mentioned in the background art of not having the function of positioning the billet to prevent rolling offset.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a metal forging die for preventing displacement, comprising an upper fixed plate and a lower fixed plate, wherein an upper die is fixedly connected at the middle position of the bottom end of the upper fixed plate, and a lower die is fixedly connected at the middle position of the top end of the lower fixed plate, and a positioning component is provided inside the lower die to stabilize the billet and prevent displacement.

[0007] The positioning assembly includes an ejector groove, which is located inside the bottom of the upper fixed plate. An ejector rod is vertically inserted into the ejector groove from top to bottom. An ejector block is fixedly connected to the top of the ejector rod. An internally threaded fixing cap is sleeved on the top of the ejector block. An electromagnet is horizontally placed on the top of the ejector block. An external wire is movably connected to the bottom of the electromagnet. Wire grooves are provided inside the ejector rod and ejector block. Positioning pins are fixedly connected to both sides of the top of the lower mold, and pin grooves are provided on both sides of the bottom of the upper mold.

[0008] As a further technical solution of this utility model, the positions of the pin groove and the positioning pin are corresponding, and the outer diameter of the positioning pin and the inner diameter of the pin groove are consistent.

[0009] As a further technical solution of this utility model, the outer diameter of the ejector rod is adapted to the inner diameter of the ejector rod groove, and the ejector rod can slide up and down along the inside of the ejector rod groove.

[0010] As a further technical solution of this utility model, the ejector block is threaded on the outside, and the thread on the outside of the ejector block matches the thread inside the internal thread fixing cap.

[0011] As a further technical solution of this utility model, a bottom annular shell is fixedly connected to the outer ring of the top of the lower fixed plate, a first induction coil is fixedly connected to the inside of the bottom annular shell, a top annular shell is fixedly connected to the outside of the upper mold, a second induction coil is provided inside the top annular shell, the inner diameter of the bottom annular shell and the outer diameter of the top annular shell are the same, and the vertical center lines of the bottom annular shell and the top annular shell coincide.

[0012] As a further technical solution of this utility model, the top of the upper fixing plate is provided with four sets of top pre-cut slots, and a pressure sensor is installed at the bottom of the top pre-cut slot. A sensor contact plate is glued to the top of the pressure sensor. The top pre-cut slots are symmetrically distributed about the vertical center line of the upper fixing plate, and the top of the sensor contact plate is higher than the top of the upper fixing plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the anti-displacement metal forging die not only realizes the function of positioning the billet to prevent rolling displacement, but also realizes the function of heating the die without baking, and also realizes the function of top installation loosening detection;

[0014] (1) By setting up a pin groove, positioning pin, ejector groove, ejector rod, ejector block, internal thread fixing cap, electromagnet, external wire and wire groove, when in use, the steel billet is placed horizontally inside the lower mold, the hydraulic mechanism pushes the upper mold down to forge the billet. As the billet is put into the lower mold, the electromagnet is energized to generate magnetism and attract the billet, so that it is always in the center position and is not easy to deviate when the mold is closed. The pin groove and positioning pin cooperate to make the upper and lower molds close accurately. After forging, the ejector rod moves up under the push of the ejection mechanism, and the ejector block and internal thread fixing cap move up synchronously to push out the workpiece, thus realizing the function of positioning the billet to prevent rolling deviation.

[0015] (2) By setting a bottom annular shell, a first induction coil, a top annular shell and a second induction coil, when using it, the mold usually needs to be baked before hot forging. The first induction coil and the second induction coil are connected to the power, and the lower mold and the upper mold are heated quickly through the principle of electromagnetic induction, which shortens the time of baking the mold. The bottom annular shell and the top annular shell are matched in size, so there will be no conflict when the upper and lower molds are closed, thus realizing the function of heating the mold without baking the mold.

[0016] (3) By setting a top pre-grooved slot, a pressure sensor and a sensor contact plate, when in use, the upper fixed plate is connected to the hydraulic mechanism, the sensor contact plate is pressed against the connection position, the pressure sensor in the top pre-grooved slot senses the pressure at the sensor contact plate, the pressure is constant when the installation is stable, and once it is loose, a fluctuating line will appear, which is convenient for staff to judge and realizes the function of top installation loosening detection. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 This is an enlarged front view cross-sectional diagram of the ejector block and the internal thread fixing cap in the separated state of this utility model.

[0019] Figure 3 This is a bottom view of the upper fixing plate structure of this utility model;

[0020] Figure 4 This is a top view of a partial cross-sectional structure of the upper fixing plate of this utility model.

[0021] In the diagram: 1. Upper fixing plate; 2. Upper mold; 3. Lower fixing plate; 4. Lower mold; 5. Pin groove; 6. Positioning pin; 7. Ejector groove; 8. Ejector rod; 9. Ejector block; 10. Internal thread fixing cap; 11. Electromagnet; 12. External wire; 13. Wire groove; 14. Bottom annular shell; 15. First induction coil; 16. Top annular shell; 17. Second induction coil; 18. Top pre-grooved slot; 19. Pressure sensor; 20. Sensor contact plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figure 1-4 An anti-displacement metal forging die includes an upper fixed plate 1 and a lower fixed plate 3. An upper die 2 is fixedly connected to the middle position of the bottom end of the upper fixed plate 1, and a lower die 4 is fixedly connected to the middle position of the top end of the lower fixed plate 3. The lower die 4 is provided with a positioning component that can stabilize the billet and prevent displacement.

[0024] Please see Figure 1-4An anti-deviation metal forging mold also includes a positioning component, which includes an ejector groove 7. The ejector groove 7 is opened inside the bottom end of the upper fixed plate 1. An ejector rod 8 is vertically inserted into the ejector groove 7 from top to bottom. An ejector block 9 is fixedly connected to the top of the ejector rod 8. An internal threaded fixing cap 10 is sleeved on the top of the ejector block 9. An electromagnet 11 is horizontally placed on the top of the ejector block 9. An external wire 12 is movably connected to the bottom end of the electromagnet 11. A wire groove 13 is opened inside the ejector rod 8 and the ejector block 9. Positioning pins 6 are fixedly connected to both sides of the top of the lower mold 4. Pin grooves 5 are opened on both sides of the bottom of the upper mold 2.

[0025] The positions of the pin groove 5 and the positioning pin 6 are corresponding. The outer diameter of the positioning pin 6 is consistent with the inner diameter of the pin groove 5. The outer diameter of the ejector rod 8 is matched with the inner diameter of the ejector groove 7. The ejector rod 8 can slide up and down along the inside of the ejector groove 7. The ejector block 9 is threaded on the outside. The thread on the outside of the ejector block 9 matches the thread inside the internal thread fixing cap 10 to prevent the positioning blank from shifting.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the electromagnet 11 generates magnetism when energized, attracting the blank and keeping it in the center position so that it is not easily deviated when the mold closes. The pin groove 5 and the positioning pin 6 cooperate to make the upper and lower molds close accurately. After forging, the ejector rod 8 moves upward under the push of the ejector mechanism, and the ejector block 9 and the internal thread fixing cap 10 move upward simultaneously to push the workpiece out. The specific model of the electromagnet 11 is SMA-5050.

[0027] The bottom annular shell 14 is fixedly connected to the outer ring of the top of the lower fixed plate 3. The first induction coil 15 is fixedly connected to the inside of the bottom annular shell 14. The top annular shell 16 is fixedly connected to the outside of the upper mold 2. The second induction coil 17 is set inside the top annular shell 16. The inner diameter of the bottom annular shell 14 and the outer diameter of the top annular shell 16 are the same. The vertical center lines of the bottom annular shell 14 and the top annular shell 16 coincide. The mold is baked quickly by heating.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, the first induction coil 15 and the second induction coil 17 are energized, and the lower mold 4 and the upper mold 2 are rapidly heated through the principle of electromagnetic induction, which shortens the baking time. The bottom annular shell 14 and the top annular shell 16 are sized to match, so there will be no conflict when the upper and lower molds are closed.

[0029] The top of the upper fixed plate 1 has four sets of top pre-cut slots 18. A pressure sensor 19 is installed at the bottom of the top pre-cut slot 18. A sensor contact plate 20 is glued to the top of the pressure sensor 19. The top pre-cut slots 18 are symmetrically distributed about the vertical center line of the upper fixed plate 1. The top of the sensor contact plate 20 is higher than the top of the upper fixed plate 1, and the connection is loose for easy observation.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, the sensor contact plate 20 is pressed against the connection position, and the pressure sensor 19 in the pre-cut groove 18 at the top senses the pressure at the sensor contact plate 20. When the installation is stable, the pressure is constant. Once it is loose, a fluctuating line will appear, which is convenient for the staff to judge. The pressure sensor 19 is model MPM270.

[0031] Working Principle: In use, the steel billet is first placed horizontally inside the lower mold 4. The hydraulic mechanism pushes the upper mold 2 downward to forge the billet. As the billet is placed inside the lower mold 4, the electromagnet 11 is energized to generate magnetism, attracting the billet and keeping it in a centered position, preventing it from shifting when the mold closes. The pin groove 5 and the positioning pin 6 work together to ensure precise closing of the upper and lower molds. After forging, the ejector rod 8 moves upward under the push of the ejector mechanism, and the ejector block 9 and the internal thread fixing cap 10 move upward simultaneously to push the workpiece out. Before hot forging, the mold usually needs to be baked. The first induction coil 15 and the second induction coil 17 are energized, and the lower mold 4 and the upper mold 2 are rapidly heated through electromagnetic induction, shortening the baking time. The bottom annular shell 14 and the top annular shell 16 are sized to fit each other, preventing conflict when the upper and lower molds close. The upper fixed plate 1 is connected to the hydraulic mechanism, and the sensor contact plate 20 is pressed against the connection position. The pressure sensor 19 in the pre-cut groove 18 at the top senses the pressure at the sensor contact plate 20. When the installation is stable, the pressure is constant. Once it is loose, a fluctuating line will appear, which is convenient for the staff to judge.

[0032] 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.

Claims

1. A metal forging die for preventing deviation, comprising an upper fixing plate (1) and a lower fixing plate (3), characterized in that: An upper mold (2) is fixedly connected to the middle position of the bottom end of the upper fixed plate (1), and a lower mold (4) is fixedly connected to the middle position of the top end of the lower fixed plate (3). The lower mold (4) is provided with a positioning component that can stabilize the blank and prevent it from shifting. The positioning assembly includes a push rod groove (7), which is located inside the bottom of the upper fixed plate (1). An ejector rod (8) is vertically inserted into the push rod groove (7) from top to bottom. An ejector block (9) is fixedly connected to the top of the ejector rod (8). An internal threaded fixing cap (10) is sleeved on the top of the ejector block (9). An electromagnet (11) is horizontally placed on the top of the ejector block (9). An external wire (12) is movably connected to the bottom of the electromagnet (11). A wire groove (13) is provided inside the ejector rod (8) and the ejector block (9). Positioning pins (6) are fixedly connected to both sides of the top of the lower mold (4). Pin grooves (5) are provided on both sides of the bottom of the upper mold (2).

2. The anti-deviation metal forging die according to claim 1, characterized in that: The pin groove (5) and the positioning pin (6) are positioned correspondingly, and the outer diameter of the positioning pin (6) is consistent with the inner diameter of the pin groove (5).

3. The anti-deviation metal forging die according to claim 1, characterized in that: The outer diameter of the ejector rod (8) is adapted to the inner diameter of the ejector groove (7), and the ejector rod (8) can slide up and down along the inside of the ejector groove (7).

4. The anti-deviation metal forging die according to claim 1, characterized in that: The ejector block (9) has threads on its exterior, and the threads on the exterior of the ejector block (9) match the threads inside the internal thread fixing cap (10).

5. The anti-deviation metal forging die according to claim 1, characterized in that: The bottom annular shell (14) is fixedly connected to the outer ring of the top of the lower fixed plate (3). The first induction coil (15) is fixedly connected inside the bottom annular shell (14). The top annular shell (16) is fixedly connected to the outside of the upper mold (2). The second induction coil (17) is provided inside the top annular shell (16). The inner diameter of the bottom annular shell (14) and the outer diameter of the top annular shell (16) are the same. The vertical center lines of the bottom annular shell (14) and the top annular shell (16) coincide.

6. The anti-deviation metal forging die according to claim 1, characterized in that: The top of the upper fixed plate (1) has four sets of top pre-cut slots (18). A pressure sensor (19) is installed at the bottom of the top pre-cut slot (18). A sensor contact plate (20) is glued to the top of the pressure sensor (19). The top pre-cut slots (18) are symmetrically distributed about the vertical center line of the upper fixed plate (1). The top of the sensor contact plate (20) is higher than the top of the upper fixed plate (1).

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