Roller machining blank forming die

Abstract

The utility model relates to the technical field of roller forming dies, in particular to a roller machining blank forming die which comprises a base, a lower die is fixedly installed above the base, supporting rods are fixedly installed on the periphery of the top end of the lower die, and a bearing seat is fixedly installed at the other ends of the supporting rods. A plurality of hydraulic cylinders are fixedly installed on the bottom end face of the bearing seat, upper molds are fixedly installed at the telescopic ends of the hydraulic cylinders, mold grooves are formed in the upper molds and the lower molds, mold cavities are clamped in the mold grooves, and clamping structures are arranged at the joints of the upper molds and the mold cavities and the joints of the lower molds and the mold cavities. According to the utility model, by pulling the pulling plate of the clamping structure, the pulling plate pulls the limiting rod to slide in the sliding chute, and by moving the limiting rod, the limiting rod is inserted into or pulled out of the connecting part of the limiting rod and the mold cavity, so that the mold cavity is moved out and fixed, and the effects that the mold cavity is detachable and convenient to replace are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of roller forming dies, in particular to a roller processing blank forming die. Background Art

[0002] Under the action of external force, the tool that uses a specific shape to shape the blank into a specific product with a certain shape and size is the mold. The mold is widely used in forging, stamping, powder metallurgy pressing, pressure forging, and compression and injection molding of engineering plastics, rubber, ceramics and other products. The roller is a tool that causes metal to undergo plastic deformation. It is an important consumable component that determines the efficiency of the rolling mill and the quality of the rolled material. Commonly used rollers include cast steel rollers, cast iron rollers and forged rollers, etc. Forged rollers refer to rollers manufactured by directly pouring molten steel or molten iron into a mold.

[0003] The patent specification with announcement number CN219683889U discloses a forming die for a rolling mill blank, including a die base and a rolling mill blank. A right-angle bent plate is arranged on the rear side of the top of the die base, an electric push rod is arranged on the top of the right-angle bent plate, the output shaft of the electric push rod vertically passes through the right-angle bent plate, and an upper die is fixedly installed on the bottom end of the output shaft of the electric push rod, a lower die is arranged on the top of the die base, and an upper die cavity and a lower die cavity for forming the rolling mill blank are respectively arranged on the upper die and the lower die, and also include a demolding component for ejecting the rolling mill blank and a connecting component for controlling the synchronous lifting and lowering of the demolding component and the upper die. The utility model cooperates with the die base, the rolling mill blank, the electric push rod, the upper die, the lower die, the upper die cavity, the lower die cavity, the demoulding component and the connecting component, so that the demoulding component can be operated simultaneously with the opening of the upper die and the lower die under the action of the connecting component. That is, when the upper die and the lower die are opening, the rolling mill blank can be driven synchronously to be demoulded, which only requires one step and does not require opening the die first and then demoulding. This is beneficial to production efficiency, has strong practicality, and is suitable for promotion.

[0004] However, in the implementation of relevant technologies, it was found that the roll processing blank forming mold designed in the above-mentioned design has the following problems: the roll processing blank forming mold is controlled by the user to start the electric push rod 1 to control the upper mold and the lower mold to perform the mold closing operation, and then the material required for the roll processing blank is added into the upper mold cavity and the lower mold cavity through the injection hole, so that the roll processing blank is cooled and formed in the upper mold cavity and the lower mold cavity, and the upper mold cavity and the upper mold cavity are directly opened on the upper mold and the lower mold. In this way, after the upper mold and the lower mold are used for a long time, the upper mold cavity and the lower mold cavity are worn inside, resulting in deformation of the blank, and the upper mold and the lower mold need to be replaced as a whole, which is very wasteful of materials, and when the upper mold and the lower mold are used, only a single roll workpiece can be injected into the upper mold cavity and the lower mold cavity. In view of this, a roll processing blank forming mold is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a rolling blank forming die.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rolling mill blank forming mold, including a base, a lower mold is fixedly installed on the top of the base, support rods are rotatably installed around the top of the lower mold, and a bearing seat is threadedly installed on the other end of the support rod, characterized in that: a plurality of groups of hydraulic cylinders are fixedly installed on the bottom end surface of the bearing seat, and an upper mold is fixedly installed on the telescopic end of the hydraulic cylinder, and a mold groove is opened inside the upper mold and the lower mold, and a mold cavity is clamped inside the mold groove, and a clamping structure is provided at the connection between the upper mold and the lower mold and the mold cavity, and the clamping structure includes a slide groove, which is opened on the upper mold and the lower mold, and a fixing plate is fixedly installed inside the slide groove, a limiting rod is passed through the middle of the fixing plate, and a pull plate is fixedly connected to one end of the limiting rod.

[0007] As a further description of the above technical solution: a tension spring is fixedly installed on one side of the fixed plate, one end of the tension spring is fixedly installed on the fixed plate, and the other end is fixedly installed on the pulling plate. The tension spring can achieve a pulling effect on the pulling plate.

[0008] As a further description of the above technical solution: a limiting groove is provided at the connection between the mold cavity and the limiting rod, and the limiting groove is provided on the mold cavity. The limiting groove and the limiting rod can achieve the effect of detachable and replaceable mold cavity itself.

[0009] As a further description of the above technical solution: a fixed rod is arranged in the middle of the hydraulic cylinder, the other end of the fixed rod passes through the upper mold, the mold groove and the mold cavity, and a baffle is fixedly installed, and the fixed rod and the baffle can achieve a sealing effect on the mold cavity.

[0010] As a further description of the above technical solution: a retaining groove matching the baffle is provided at the connection between the mold cavity and the baffle, and the retaining groove is provided on the mold cavity, and the retaining groove can achieve the placement effect of the baffle.

[0011] As a further description of the above technical solution: a hole groove matching the fixed rod is provided at the connection between the upper mold and the mold groove and the fixed rod, and the hole groove is provided on the upper mold and the mold groove. The hole groove can facilitate the upper mold to avoid wear between the fixed rod and the upper mold and the mold groove during the movement.

[0012] As a further description of the above technical solution: the upper die, the die groove and one side of the die cavity are all provided with injection holes, and the injection holes are convenient for injecting the forging liquid into the interior of the die cavity.

[0013] The utility model has the following beneficial effects:

[0014] The utility model designs a rolling mill blank forming die, which pulls a pull plate of a clamping structure so that the pull plate pulls a limit rod to slide inside a slide groove, and through the movement of the limit rod, the limit rod is inserted into or pulled out of the connection with the die cavity, thereby achieving the removal and fixing effect of the die cavity, thereby achieving the effect of detachable and easy replacement of the die cavity.

[0015] The utility model designs a rolling mill blank forming die, which is fixedly mounted on the bottom end surface of a carrying plate by means of a fixing rod and a baffle plate, so that during the downward movement of the upper die, the baffle plate will be blocked on the blocking groove of the die cavity, so that during the subsequent process of pulling up the upper die and the die cavity, the cooled workpiece can be fixed on the lower die, making it convenient for subsequent workers to take out and collect the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the cross section of the lower mold of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the upper mold and part of the clamping structure of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the mold cavity of the upper mold and the lower mold of the utility model.

[0020] Legend:

[0021] 1. Base; 2. Lower mold; 3. Support rod; 4. Bearing seat; 5. Hydraulic cylinder; 6. Upper mold; 7. Mold groove; 8. Mold cavity; 9. Clamping structure; 901. Slide groove; 902. Fixed plate; 903. Limit rod; 904. Pull plate; 10. Tension spring; 11. Limit groove; 12. Fixed rod; 13. Baffle plate; 14. Baffle groove; 15. Hole groove; 16. Injection hole. DETAILED DESCRIPTION

[0022] Reference Figure 1-4 The utility model provides a rolling mill blank forming mold: the dimensions of the upper mold 6 and the lower mold 2 are: 500*900*50mmW*L*H, including a base 1, a lower mold 2 is fixedly installed on the top of the base 1, support rods 3 are rotatably installed around the top of the lower mold 2, and a bearing seat 4 is threadedly installed on the other end of the support rod 3. A plurality of groups of hydraulic cylinders 5 are fixedly installed on the bottom end surface of the bearing seat 4, and an upper mold 6 is fixedly installed on the telescopic end of the hydraulic cylinder 5. A mold groove 7 is opened inside the upper mold 6 and the lower mold 2, and a mold cavity 8 is clamped inside the mold groove 7. A clamping structure 9 is provided at the connection between the upper mold 6 and the lower mold 2 and the mold cavity 8, and the clamping structure 9 includes a slide groove 901, which is opened on the upper mold 6 and the lower mold 2, and a fixed plate 902 is fixedly installed inside the slide groove 901. A limiting rod 903 is passed through the middle of the fixing plate 902, and a pull plate 904 is fixedly connected to one end of the limiting rod 903.

[0023] As a further implementation scheme of the above technical scheme: a tension spring 10 is fixedly installed on one side of the fixed plate 902, one end of the tension spring 10 is fixedly installed on the fixed plate 902, and the other end is fixedly installed on the pulling plate 904. The tension spring 10 can achieve a pulling effect on the pulling plate 904.

[0024] As a further implementation scheme of the above technical scheme: a limiting groove 11 is opened at the connection between the mold cavity 8 and the limiting rod 903, and the limiting groove 11 is opened on the mold cavity 8. The limiting groove 11 and the limiting rod 903 can achieve the effect of detachable and replaceable mold cavity 8 itself.

[0025] As a further implementation scheme of the above technical scheme: an injection hole 16 is provided on one side of the upper die 6 , the die groove 7 and the die cavity 8 , and the injection hole 16 is convenient for injecting the forging liquid into the interior of the die cavity 8 .

[0026] During specific implementation, the upper mold 6 is threadedly installed above the lower mold 2 through the support rod 3, and then the hydraulic cylinder 5 is used to push the upper mold 6 so that the upper mold 6 and the lower mold 2 form a complete mold shape, and then the liquid for roller forging is injected into the mold cavity 8 through the injection hole 16, so that the mold cavity 8 of the upper mold 6 and the lower mold 2 is cooled and processed into the used roller workpiece. During the long-term use of the upper mold 6 and the lower mold 2 or when the roller workpiece of other shapes needs to be replaced, the pull plate 904 can be pulled to make the pull plate 904 pull the limit rod 903, and the limit rod 903 can be separated from the limit groove 11 of the mold cavity 8, so that the mold cavity 8 can be separated from the mold groove 7, thereby achieving the replacement effect of the mold cavity 8.

[0027] As a further implementation scheme of the above technical scheme: a fixed rod 12 is arranged in the middle of the hydraulic cylinder 5, one end of the fixed rod 12 is fixedly installed on the bottom end surface of the bearing seat 4, the other end of the fixed rod 12 passes through the upper mold 6, the mold groove 7 and the mold cavity 8, and a baffle 13 is fixedly installed. The fixed rod 12 and the baffle 13 can achieve a sealing effect on the mold cavity 8.

[0028] As a further implementation scheme of the above technical scheme: a retaining groove 14 matching with the baffle 13 is provided at the connection between the mold cavity 8 and the baffle 13 . The retaining groove 14 is provided on the mold cavity 8 , and the retaining groove 14 can realize the placement effect of the baffle 13 .

[0029] As a further implementation scheme of the above technical scheme: a hole groove 15 matching the fixed rod 12 is opened at the connection between the upper mold 6 and the mold groove 7 and the fixed rod 12, and the hole groove 15 is opened on the upper mold 6 and the mold groove 7. The hole groove 15 can facilitate the upper mold 6 to avoid wear between the fixed rod 12 and the upper mold 6 and the mold groove 7 during the movement.

[0030] In specific implementation, when the forged workpiece has cooled down, the hydraulic cylinder 5 can be used to pull the upper mold 6 upward. At this time, the fixed rod 12 and the baffle 13 are in a fixed state, so that the cooled workpiece and the upper mold 6 can be demolded, avoiding manual demolding again, and also avoiding some demolding that lifts up the workpiece, which is inconvenient for workers to collect.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rolling mill blank forming die, comprising a base (1), a lower die (2) fixedly mounted above the base (1), support rods (3) rotatably mounted around the top of the lower die (2), a bearing seat (4) threadedly mounted on the other end of the support rod (3), characterized in that: A plurality of groups of hydraulic cylinders (5) are fixedly mounted on the bottom end surface of the bearing seat (4), an upper mold (6) is fixedly mounted on the telescopic end of the hydraulic cylinder (5), a mold groove (7) is provided inside the upper mold (6) and the lower mold (2), a mold cavity (8) is clamped inside the mold groove (7), a clamping structure (9) is provided at the connection between the upper mold (6) and the lower mold (2) and the mold cavity (8), the clamping structure (9) comprises a slide groove (901), the slide groove (901) is provided on the upper mold (6) and the lower mold (2), a fixed plate (902) is fixedly mounted inside the slide groove (901), a limiting rod (903) is passed through the middle of the fixed plate (902), and a pull plate (904) is fixedly connected to one end of the limiting rod (903).

2. A rolling blank forming die according to claim 1, characterized in that: A tension spring (10) is fixedly mounted on one side of the fixed plate (902), one end of the tension spring (10) is fixedly mounted on the fixed plate (902), and the other end is fixedly mounted on the tension plate (904).

3. A rolling blank forming die according to claim 1, characterized in that: A limiting groove (11) is provided at the connection between the mold cavity (8) and the limiting rod (903), and the limiting groove (11) is provided on the mold cavity (8).

4. A rolling blank forming die according to claim 1, characterized in that: A fixing rod (12) is arranged in the middle of the hydraulic cylinder (5), one end of the fixing rod (12) is fixedly mounted on the bottom end surface of the bearing seat (4), the other end of the fixing rod (12) passes through the upper mold (6), the mold groove (7) and the mold cavity (8), and a baffle (13) is fixedly mounted thereon.

5. A rolling blank forming die according to claim 4, characterized in that: A retaining groove (14) matching with the retaining plate (13) is provided at the connection between the mold cavity (8) and the retaining plate (13); the retaining groove (14) is provided on the mold cavity (8).

6. A rolling blank forming die according to claim 4, characterized in that: A hole groove (15) matching the fixing rod (12) is provided at the connection between the upper mold (6) and the mold groove (7) and the fixing rod (12), and the hole groove (15) is provided on the upper mold (6) and the mold groove (7).

7. The rolling blank forming die according to claim 1, characterized in that: The upper mold (6), the mold groove (7) and one side of the mold cavity (8) are all provided with an injection hole (16).

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