High-precision forging process

Abstract

The invention relates to the technical field of forging, in particular to a high-precision forging process. Adjusting components are added into the raw materials, so that the connection strength and plasticity of the whole raw materials are improved; by arranging the weightless filling step, the weight of the die is larger than that of a forged blank, the die and the forged blank are tightly attached in the falling process according to the inertia principle, and compared with traditional internal extrusion attachment, the manufacturing precision is higher.

Description

Technical Field

[0001] The invention relates to the technical field of forging, and in particular to a high-precision forging process. Background Art

[0002] In the forging process, the heated blank needs to be initially shaped and then loaded into the corresponding mold for secondary extrusion molding. However, due to the limited deformation of the heated blank, it is difficult to completely fit the mold during extrusion molding in the mold. In addition, during the forging process, it is often necessary to manually adjust the forging hammering angle, which often results in insufficient precision of the manufactured product and requires subsequent processing. Therefore, a high-precision forging process is required. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a high-precision forging process, which has the advantages of high forging automation and high forging accuracy.

[0004] To achieve the above object, the technical solution of the present invention is: a high-precision forging process, which specifically includes the following steps:

[0005] S1: Select various raw materials according to the ratio and put them into the furnace body for melting, pouring and demoulding to obtain steel ingots, select steel ingots of appropriate length for cutting and blanking to obtain forging blanks, and then place the forging blanks in a heating furnace for heating.

[0006] S2: The heated forging blank is roughened, and after reaching the target height, it is transferred to a forging device for secondary extrusion molding until a columnar processed blank is obtained.

[0007] S3: placing the columnar processed blank in a mold for extrusion molding, then placing it in a lifting device with the filling port facing downward for weightless filling, and then demolding to obtain a molded part.

[0008] S4: The molded parts are subjected to annealing, quenching and flaw detection processes to obtain the final product.

[0009] Furthermore, after the raw materials are melted, adjustment components need to be added in sequence, and the adjustment components include nickel, chromium, tungsten and molybdenum, silicon and manganese, vanadium, aluminum, titanium, zirconium, and boron in the order of addition.

[0010] Furthermore, the forging device includes a hammering assembly, a first base and two clamping assemblies. The hammering assembly is mounted above the first base and can be raised and lowered to hammer and shape the forging blank on the first base. The two clamping assemblies are symmetrically arranged on the left and right sides of the first base. The clamping assembly includes a telescopic part and a driving plate. The driving plate is connected to the telescopic part. A rotating chassis is provided on the driving plate. When working, the two rotating chassis clamp the forging blank and rotate; wherein, at least one clamping assembly also includes a fine-tuning assembly. In the clamping assembly provided with the fine-tuning assembly, the rotating chassis is slidably connected to the driving plate. The fine-tuning assembly passes through the driving plate and is connected to the rotating chassis. The fine-tuning assembly adjusts the lateral position of the rotating chassis on the driving plate.

[0011] Furthermore, the fine-tuning assembly includes a housing, a positioning screw, a limit plate, a transmission gear and a brake gear. The housing is arranged on one side of the driving plate, the limit plate is rotatably arranged in the housing, and the transmission gear is coaxially arranged on one side of the limit plate; one end of the positioning screw is connected to the rotating chassis, and the other end coaxially passes through the limit plate and the transmission gear and is threadedly connected to the two; the brake gear is arranged on one side of the limit plate and meshes with the transmission gear.

[0012] Furthermore, the rotating chassis includes a rotating disk and a worm assembly driving the rotating disk to rotate. The outer ring of the rotating disk is provided with a turbine, and the worm is meshed with the turbine to drive the turbine to rotate.

[0013] Furthermore, an extension plate is provided on one side of the first base, an auxiliary block is provided on the extension plate, and the auxiliary block is slidably connected to the extension plate.

[0014] Furthermore, the lifting device includes a vertical pole, a second base, a movable plate and a lifting cylinder, at least two vertical poles are symmetrically arranged above the second base, the movable plate is used to place a mold filled with a columnar processed blank, the movable plate is arranged above the second base and its two ends are respectively sleeved on the two vertical poles, the vertical pole includes a resistance section and a falling section, the falling section is arranged below the resistance section and its diameter is smaller than the resistance section, the lifting cylinder is arranged in the second base, the lifting cylinder is started to push the movable plate through the falling section to reach the resistance section and then reset, at this time, the movable plate descends under the action of gravity.

[0015] Furthermore, the resistance section is in the shape of a screw, a connecting sleeve is provided between the movable plate and the vertical rod, an outer ring of the connecting sleeve is rotationally connected to the movable plate, and an inner ring of the connecting sleeve is provided with a thread engaged with the resistance section.

[0016] Furthermore, a buffer is sleeved on the bottom of the vertical pole, and a spring is provided below the buffer.

[0017] By adopting the above technical solution, the beneficial effects of the present invention are:

[0018] 1. The present invention increases the connection strength and plasticity of the entire raw material by adding adjustment components to the raw material; by setting a weightless filling step, the weight of the mold is made greater than the weight of the forging blank, and the principle of inertia is used to make the two fit closely during the falling process, which has higher production precision than the traditional internal extrusion fitting.

[0019] 2. The present invention realizes the automated forging of columnar processing blanks by setting an automated hammering component, reduces manual adjustment, and greatly improves the shaping accuracy. By setting a fine-tuning component and coordinating the deformation of the forging blank during the forging process, the degree of automation is greatly improved.

[0020] 3. The present invention realizes weightless filling of both the mold and the columnar processing blank by providing a lifting device, raises the height of both by using a lifting cylinder, and then reserves time for the retraction of the lifting rod by providing a resistance section vertical rod, thereby improving the safety of the device.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0022] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiment described with reference to various figures and drawings.

[0023] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation of the present invention.

[0025] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the structure of the forging device in the present invention;

[0028] Figure 2 It is a front view of the forging device in the present invention;

[0029] Figure 3 It is a structural exploded view of one of the clamping components of the forging device of the present invention;

[0030] Figure 4 It is a schematic diagram of the internal structure of the fine-tuning component of the forging device in the present invention;

[0031] Figure 5 It is a schematic diagram of the internal structure of the rotating chassis of the forging device of the present invention;

[0032] Figure 6 It is a front view of the lifting device in the present invention;

[0033] Figure 7 It is a structural schematic diagram of the lifting device in the present invention.

[0034] Description of main reference numerals:

[0035] 1. Beat the components;

[0036] 2. The first base;

[0037] 21. Extension plate; 22. Auxiliary block;

[0038] 3. Clamping assembly;

[0039] 31. telescopic member; 32. driving plate; 33. rotating chassis; 331. turntable; 332. worm assembly; 34. fine adjustment assembly; 341. housing; 342. positioning screw; 343. limiting plate; 344. transmission gear; 345. brake gear;

[0040] 4. Pole erection;

[0041] 41. Resistance stage; 42. Falling stage;

[0042] 5. Second base;

[0043] 6. Mobile board;

[0044] 7. Lifting cylinder;

[0045] 8. Connecting sleeve;

[0046] 9. Buffer parts. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not used to limit the present invention.

[0048] The present invention provides a technical solution: a high-precision forging process, which specifically includes the following steps:

[0049] S1: Select various raw materials according to the ratio and put them into the furnace body for melting, pouring and demoulding to obtain steel ingots, select steel ingots of appropriate length for cutting and blanking to obtain forging blanks, and then place the forging blanks in a heating furnace for heating.

[0050] S2: The heated forging blank is roughened, and after reaching the target height, it is transferred to a forging device for secondary extrusion molding until a columnar processed blank is obtained.

[0051] S3: placing the columnar processed blank in a mold for extrusion molding, then placing it in a lifting device with the filling port facing downward for weightless filling, and then demolding to obtain a molded part.

[0052] S4: The molded parts are subjected to annealing, quenching and flaw detection processes to obtain the final product.

[0053] Among them, after the raw materials are melted, adjustment components need to be added in sequence. The adjustment components include nickel, chromium, tungsten and molybdenum, silicon and manganese, vanadium, aluminum, titanium, zirconium and boron in the order of addition.

[0054] Reference Figure 1-5 The forging device includes a hammering assembly 1, a first base 2 and two clamping assemblies 3.

[0055] The hammering assembly 1 is mounted above the first base 2 and can be lifted to hammer and shape the forged blank on the first base 2. The hammering assembly 1 can be an existing hammering device for forging. Two clamping assemblies 3 are symmetrically arranged on the left and right sides of the first base 2. In order to increase the stability of the first base 2 for placing long strips of objects, an extension plate 21 is arranged on one side of the first base 2. An auxiliary block 22 is arranged on the extension plate 21. The auxiliary block 22 is slidably connected to the extension plate 21. The auxiliary lifting of the first base 2 is achieved by moving the auxiliary block 22.

[0056] The clamping assembly 3 includes a telescopic member 31 and a driving plate 32, the driving plate 32 is connected to the telescopic member 31, and the telescopic member 31 is fixed on the ground to control the driving plate 32 to move toward the first base 2. A rotating chassis 33 is provided on the driving plate 32. When working, the two rotating chassis 33 clamp the forging blank and rotate. There are various rotation modes. In this embodiment, the rotating chassis 33 includes a turntable 331 and a worm assembly 332 driving the turntable 331 to rotate. The outer ring of the turntable 331 is provided with a turbine, and the worm is meshed with the turbine and drives it to rotate. Among them, at least one clamping assembly 3 also includes a fine-tuning assembly 34. In the clamping assembly 3 provided with the fine-tuning assembly 34, the rotating chassis 33 is slidably connected to the driving plate 32, and the fine-tuning assembly 34 passes through the driving plate 32 and is connected to the rotating chassis 33. The fine-tuning assembly 34 adjusts the lateral position of the rotating chassis 33 on the driving plate 32.

[0057] Specifically, the fine adjustment assembly 34 includes a housing 341, a positioning screw 342, a limiting plate 343, a transmission gear 344 and a brake gear 345. The housing 341 is fixedly arranged on one side of the driving plate 32, the limiting plate 343 is rotatably arranged in the housing 341, and the transmission gear 344 is coaxially fixed on one side of the limiting plate 343; one end of the positioning screw 342 is connected to the rotating chassis 33, and the other end coaxially passes through the limiting plate 343 and the transmission gear 344 and is threadedly connected to the two; the brake gear 345 is arranged on one side of the limiting plate 343 and meshes with the transmission gear 344.

[0058] Reference Figure 6-7 The lifting device comprises a vertical pole 4, a second base 5, a movable plate 6 and a lifting cylinder 7. At least two vertical poles 4 are symmetrically arranged above the second base 5. The movable plate 6 is used to place a mold filled with a columnar processing blank. The movable plate 6 is arranged above the second base 5 and its two ends are respectively sleeved on the two vertical poles 4. The vertical pole 4 comprises a resistance section 41 and a falling section 42. The falling section 42 is arranged below the resistance section 41 and its diameter is smaller than the resistance section 41. The resistance section 41 is used to increase the falling resistance of the movable plate 6. Specifically, the resistance section 41 is screw-shaped. A connecting sleeve 8 is arranged between the movable plate 6 and the vertical pole 4. The outer ring of the connecting sleeve 8 is rotatably connected to the movable plate 6. The inner ring of the connecting sleeve 8 is provided with a thread engaged with the resistance section 41. The lifting cylinder 7 is arranged in the second base 5. The lifting cylinder 7 is started to push the movable plate 6 to pass through the falling section 42 and reach the resistance section 41 and then reset. At this time, the movable plate 6 descends under the action of gravity.

[0059] In order to buffer the impact force of the moving plate 6 falling on the second base 5, a buffer member 9 is sleeved on the bottom of the vertical rod 4, and a spring is provided below the buffer member 9.

[0060] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0061] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0062] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will understand that the present invention can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A high-precision forging process, characterized in that: The specific steps include: S1: Select various raw materials according to the ratio and put them into the furnace body for melting, pouring and demoulding to obtain steel ingots, select steel ingots of suitable length for cutting and blanking to obtain forging blanks, and then place the forging blanks in a heating furnace for heating; S2: roughening the heated forging blank, and transferring it to a forging device for secondary extrusion molding after reaching the target height until a columnar blank is obtained; S3: placing the columnar processed blank in a mold for extrusion molding, then placing it in a lifting device with the filling port facing downward for weightless filling, and then demolding to obtain a molded part; S4: The molded parts are subjected to annealing, quenching and flaw detection processes to obtain the final product.

2. The high-precision forging process according to claim 1, characterized in that: After the raw materials are melted, adjustment components need to be added in sequence. The adjustment components include nickel, chromium, tungsten and molybdenum, silicon and manganese, vanadium, aluminum, titanium, zirconium and boron in the order of addition.

3. The high-precision forging process according to claim 1, characterized in that: The forging device includes a hammering assembly, a first base and two clamping assemblies. The hammering assembly is mounted above the first base and can be raised and lowered to hammer and shape the forging blank on the first base. The two clamping assemblies are symmetrically arranged on the left and right sides of the first base. The clamping assembly includes a telescopic part and a driving plate. The driving plate is connected to the telescopic part. A rotating chassis is arranged on the driving plate. When working, the two rotating chassis clamp the forging blank and rotate. Among them, at least one clamping assembly also includes a fine-tuning assembly. In the clamping assembly provided with the fine-tuning assembly, the rotating chassis is slidably connected to the driving plate. The fine-tuning assembly passes through the driving plate and is connected to the rotating chassis. The fine-tuning assembly adjusts the lateral position of the rotating chassis on the driving plate.

4. The high-precision forging process according to claim 3, characterized in that: The fine-tuning assembly includes a shell, a positioning screw, a limit plate, a transmission gear and a brake gear. The shell is arranged on one side of the driving plate, the limit plate is rotatably arranged in the shell, and the transmission gear is coaxially arranged on one side of the limit plate; one end of the positioning screw is connected to the rotating chassis, and the other end coaxially passes through the limit plate and the transmission gear and is threadedly connected to the two; the brake gear is arranged on one side of the limit plate and meshes with the transmission gear.

5. The high-precision forging process according to claim 3, characterized in that: The rotating chassis comprises a rotating disk and a worm assembly driving the rotating disk to rotate. The outer ring of the rotating disk is provided with a turbine. The worm meshes with the turbine and drives the turbine to rotate.

6. The high-precision forging process according to claim 3, characterized in that: An extension plate is disposed on one side of the first base, an auxiliary block is disposed on the extension plate, and the auxiliary block is slidably connected to the extension plate.

7. The high-precision forging process according to claim 3, characterized in that: The lifting device includes a vertical pole, a second base, a movable plate and a lifting cylinder. At least two vertical poles are symmetrically arranged above the second base. The movable plate is used to place a mold filled with a columnar processed blank. The movable plate is arranged above the second base and its two ends are respectively sleeved on the two vertical poles. The vertical pole includes a resistance section and a falling section. The falling section is arranged below the resistance section and its diameter is smaller than that of the resistance section. The lifting cylinder is arranged in the second base. The lifting cylinder is started to push the movable plate through the falling section to reach the resistance section and then reset. At this time, the movable plate descends under the action of gravity.

8. The high-precision forging process according to claim 7, characterized in that: The resistance section is in the shape of a screw rod. A connecting sleeve is provided between the movable plate and the vertical rod. The outer ring of the connecting sleeve is rotationally connected to the movable plate. The inner ring of the connecting sleeve is provided with a thread meshing with the resistance section.

9. The high-precision forging process according to claim 7, characterized in that: A buffer is sleeved on the bottom of the vertical pole, and a spring is arranged below the buffer.

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