Forging machine with variable forging die for forging guide sliding shoe

Abstract

The utility model discloses a forging machine with a variable forging die for forging a guide sliding shoe, and belongs to the field of forging devices. The forging machine comprises a working cylinder, an upper cross beam, stand columns, a working table, a movable cross beam and a variable forging die. The working cylinder is arranged at the upper end of the upper cross beam, the stand column is connected with the upper cross beam and the workbench, and the movable cross beam sleeves the stand column and can move up and down; a T-shaped convex groove is formed in the upper end of the variable forging die, the T-shaped convex groove is clamped with the T-shaped groove of the movable cross beam through the convex groove and is in an inverted-U shape, and the middle of the T-shaped convex groove is sunken into an arc shape. According to the forging machine, the forging die can be replaced, the shape and size of a blank are accurately controlled, the problems that traditional free forging materials are low in utilization rate and large in machining allowance are solved, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of forging equipment, and in particular to a forging machine for a variable forging die for forging guide slippers. Background Technology

[0002] In the coal mining industry, coal mining machines are key equipment, and their performance and efficiency directly affect the productivity and safety of mining operations. Guide shoes, as an important component of coal mining machines, have been widely used in the industry in recent years due to their low structural defects and excellent performance. Traditionally, guide shoe production relies primarily on free forging processes to prepare blanks, followed by subsequent machining to achieve the required dimensions and precision.

[0003] Due to its inherent limitations, the free forging process requires machining allowances of up to 20mm, 15mm, and 30mm in length, thickness, and height, respectively, in the produced blanks. This not only increases the workload and time cost of subsequent machining but also results in significant material waste during the removal of excess material, keeping material utilization at a low level. With increasing awareness of resource conservation and environmental protection, improving material utilization and reducing resource consumption in the production process have become important directions for the transformation and upgrading of the manufacturing industry.

[0004] How to effectively reduce material waste, improve production efficiency, and lower manufacturing costs while ensuring product quality is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] To address the problems of low material utilization, large machining allowance, and high production cost in the free forging production process of guide shoes for coal mining machines in the background art, this utility model provides a forging machine with a variable forging die for forging guide shoes, which can significantly improve material utilization, reduce machining allowance, and increase production efficiency. The device includes a working cylinder, an upper crossbeam, columns, and a worktable. The working cylinder is located at the upper end of the upper crossbeam and is used to provide power to the entire equipment. The columns are respectively located at the four corners of the lower end of the upper crossbeam, and the worktable is located at the lower end of the columns. The columns are used to support the entire equipment, and the worktable is used to place the material to be forged.

[0006] Furthermore, the device also includes a movable crossbeam, with its four corners respectively fitted onto the column. The movable crossbeam can move up and down along the column, and multiple T-slots are provided on the lower end surface of the movable crossbeam to connect different forging dies.

[0007] Furthermore, a variable forging die is provided under the movable crossbeam, and the upper surface of the variable forging die is provided with multiple T-shaped grooves. The variable forging die is engaged in the T-shaped grooves on the lower surface of the movable crossbeam through the T-shaped grooves. During processing, different forging heads or forging dies can be changed according to the process.

[0008] Furthermore, the variable forging die is in the shape of an inverted "U", with the central concave part being arc-shaped and the radius of the arc of the concave part being 190mm-210mm. A transition arc with a radius of 110mm-1300mm is provided at the connection between the arc of the concave part and the lower end face of the variable forging die.

[0009] Furthermore, the width of the concave arc of the variable forging die is 750mm-780mm.

[0010] Furthermore, the variable forging die is made of high-strength alloy steel with a hardness of 45-50 HRC.

[0011] Preferably, the variable forging die is made of 34CrNi3Mo.

[0012] Preferably, the upper surface of the workbench has multiple T-slots, allowing for the replacement of different forging die equipment according to processing requirements.

[0013] The advantages and beneficial effects of this invention are as follows: By employing a variable forging die, compared to traditional free forging, this invention allows for more precise control of the shape and size of the blank, thereby significantly reducing the amount of material removed during subsequent machining. This not only effectively improves material utilization but also reduces material waste during production, aligning with the concept of green manufacturing. The variable forging die design ensures that the forged blank more closely matches the dimensional requirements of the final product, thus significantly reducing machining allowances. This directly reduces the workload and time costs of machining, improving production efficiency. Due to the increased material utilization, reduced machining allowances, and improved production efficiency, the forging machine of this invention has significant advantages in reducing production costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the variable forging die of this utility model.

[0017] Among them, 1-working cylinder, 2-upper crossbeam, 3-column, 4-worktable, 5-movable crossbeam, 6-variable forging die. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0019] like Figure 1 , Figure 2 As shown, the main components of this equipment include a working cylinder 1, an upper crossbeam 2, a column 3, and a worktable 4.

[0020] The working cylinder 1 is located at the upper end of the upper crossbeam 2, providing a power source for the entire forging machine. The upper crossbeam 2 serves as a support structure for the working cylinder 1, ensuring its stable operation.

[0021] The columns 3 are located at the four corners of the lower end of the upper crossbeam 2, extending vertically downwards. The main function of the columns 3 is to support the weight of the entire forging machine and ensure its stability.

[0022] The workbench 4 is located at the lower end of the column 3. The upper surface of the workbench 4 is flat, which facilitates the placement of steel and forging operations. The upper surface of the workbench 4 is also provided with multiple T-slots, which can be used to replace different forging die equipment according to processing requirements. In this embodiment, the workbench 4 is used to place the 27SiMn steel to be forged.

[0023] The four corners of the movable crossbeam 5 are respectively fitted onto the column 3, and can move up and down along the column 3. Multiple T-slots are opened on the lower end surface of the movable crossbeam 5 for connecting and fixing the variable forging die 6. By adjusting the height of the movable crossbeam 5, it can adapt to the needs of different forging stages.

[0024] The variable forging die 6 is engaged in the T-slots on the lower end face of the movable crossbeam 5 via multiple T-shaped protrusions at its upper end, enabling quick replacement. The variable forging die 6 has an inverted "U" shape design, with a rounded concave portion in the middle to accommodate the forging shape of the guide shoe. In this embodiment, the radius of the concave arc is 202mm, and a transition arc with a radius of 120mm is provided at the connection with the lower end face to ensure a smooth transition of the forging. The width of the concave arc is 766.2mm to meet the dimensional requirements of the guide shoe. The variable forging die 6 is made of high-strength alloy steel 34CrNi3Mo with a hardness of 45-50HRC to ensure dimensional accuracy and surface quality during the forging process.

[0025] Specific usage steps:

[0026] In this embodiment, the pretreated 27SiMn steel is first placed on the workbench 4. According to the forging process requirements, a heating furnace with a suitable temperature is selected to heat the steel. The heating temperature is controlled at 1200℃-1250℃ to ensure uniform heating and avoid local overheating or burning.

[0027] When the steel reaches the initial forging temperature (≤1180℃), the working cylinder 1 is activated, driving the movable crossbeam 5 to lower the forging die and forge the steel. Based on forging process parameters, such as a forging ratio ≥3 and an appropriate deformation speed, multiple forging processes, including upsetting and drawing, are performed until the desired shape and size are achieved. After completing the upsetting and drawing processes, further shaping forging is performed by changing to different variable forging dies 6, followed by hot pressing and die shaping.

[0028] After forging, a suitable cooling method, such as air cooling or oil cooling, is selected to cool the forging to avoid defects such as cracks. Finally, the forging undergoes quality inspections, including visual inspection, dimensional measurement, and hardness testing, to ensure it meets design requirements.

[0029] The forging machine for forging guide slippers using a variable forging die, provided by this utility model, has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A forging machine for guiding a variable forging die for a guide shoe forging, comprising a work cylinder (1), an upper cross beam (2), a column (3) and a workbench (4), the work cylinder (1) is arranged at the upper end of the upper cross beam (2), the lower end of the upper cross beam (2) is provided with the column (3) at four corners respectively, and the lower end of the column (3) is provided with the workbench (4), characterized in that, The device further comprises a movable crossbeam (5) which is sleeved on the four corners of the column (3) respectively, the movable crossbeam (5) can move up and down along the column (3), a plurality of T-shaped grooves are formed on the lower end surface of the movable crossbeam (5), and a variable forging die (6) is arranged below the movable crossbeam (5), a plurality of T-shaped convex grooves are arranged on the upper end surface of the variable forging die (6), and the variable forging die (6) is clamped in the T-shaped grooves on the lower end surface of the movable crossbeam (5) through the T-shaped convex grooves.

2. The forging machine for a variable forging die for guiding a slide shoe according to claim 1, wherein The variable forging die (6) is in an inverted "concave" shape, the middle concave part is in a circular arc shape, the radius of the circular arc of the concave part is 190mm-210mm, and a transition circular arc with a radius of 110mm-1300mm is arranged at the connection between the circular arc of the concave part and the lower end surface of the variable forging die (6).

3. The forging machine for guiding a variable forging die for a slide shoe forging according to claim 2, characterized by, The width of the circular arc of the concave part of the variable forging die (6) is 750mm-780mm.

4. A forging machine for a variable forging die for guiding a slide shoe forging according to any one of claims 1 to 3, characterized in that, The variable forging die (6) is made of high-strength alloy steel, and the hardness is 45-50HRC.

5. The forging machine for guiding a variable forging die for a slide shoe forging according to claim 4, wherein The variable forging die (6) is made of 34CrNi3Mo.

6. A forging machine for a variable forging die for guiding a slide shoe forging according to any one of claims 1 to 3, characterized in that, A plurality of T-shaped grooves are formed on the upper end surface of the workbench (4).

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