Multifunctional stick-shaped assistive device

By dividing forging tools into multifunctional rod-shaped auxiliary tools that integrate the functions of mandrel, lever, and sleeve, the problem of frequent replacement of traditional forging tools is solved, and forging efficiency and space utilization are improved.

CN224424149UActive Publication Date: 2026-06-30CHINA FIRST HEAVY IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA FIRST HEAVY IND
Filing Date
2025-06-10
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In traditional forging processes, the frequent replacement of forging tools leads to complex operations, high time costs, and an inability to adapt to the customized needs of different workpieces.

Method used

Design a multifunctional rod-shaped auxiliary tool, which is divided into three shaft segments along its axis: the first shaft segment is tapered for elongation, the second shaft segment is cylindrical for hole enlargement, and the third shaft segment is cylindrical for fixation, thereby realizing the integration of mandrel, lever and sleeve.

Benefits of technology

This reduces the number of times auxiliary tools need to be replaced during the forging process, improves forging efficiency, and reduces the space occupied by storing auxiliary tools.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model provides a multifunctional rod-shaped auxiliary tool, relating to the field of forging processing equipment technology. The multifunctional rod-shaped auxiliary tool includes a main body, which is divided into three shaft segments along its axial direction: a first shaft segment, a second shaft segment, and a third shaft segment. A second shaft segment connects the first and third shaft segments. The diameter of the first shaft segment gradually increases from the end furthest from the second shaft segment to the end closest to it, and the diameter of the second shaft segment is equal at any position. The third shaft segment is configured as a cylindrical structure with an opening facing away from the second shaft segment. This utility model can reduce tool changes during forging, thereby improving forging efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of forging processing equipment technology, and more specifically, to a multifunctional rod-shaped auxiliary tool. Background Technology

[0002] In traditional forging processes, cylindrical forgings need to go through processes such as mandrel drawing and lever reaming in sequence. In addition, a sleeve is needed to fix the forging during the forging process. The mandrel, lever and sleeve are independent auxiliary tools with single functions. Frequent tool changes are required, which leads to complicated operation, high time cost, large space occupation, and inability to meet the customized needs of different workpieces. Utility Model Content

[0003] The problem this invention addresses is: how to reduce tool changes during forging to improve forging efficiency.

[0004] To address the aforementioned problems, this utility model provides a multifunctional rod-shaped assistive device, comprising an assistive device body. The assistive device body is divided into three shaft segments along its axial direction, namely a first shaft segment, a second shaft segment, and a third shaft segment. The second shaft segment is used to connect the first shaft segment and the third shaft segment. The diameter of the first shaft segment gradually increases from the end away from the second shaft segment to the end closer to the second shaft segment. The second shaft segment has an overall cylindrical structure. The third shaft segment has an overall tubular structure, and its opening is located at the end opposite to the second shaft segment.

[0005] Optionally, the second shaft segment and the third shaft segment are detachably connected.

[0006] Optionally, a plug is provided at one end of the second shaft segment facing the third shaft segment, and a sleeve is provided at one end of the third shaft segment facing the second shaft segment, and the plug is used to connect with the sleeve.

[0007] Optionally, the inner wall of the sleeve is provided with a protrusion, and the outer wall of the plug is provided with a groove, wherein the protrusion and the groove are slidably connected.

[0008] Optionally, the surface of the assistive device body is provided with a high-temperature resistant layer.

[0009] Optionally, an extension platform is provided at the end of the first shaft segment away from the second shaft segment, the extension platform and the first shaft segment forming a stepped shaft structure, and the extension platform is used for hoisting.

[0010] Optionally, a shoulder is provided at the junction of the second shaft segment and the first shaft segment.

[0011] Optionally, the first shaft segment is hollow inside to allow access to cooling liquid.

[0012] Optionally, a temperature sensor is also included, which is disposed at the extension stage.

[0013] Optionally, the extension platform is provided with an annular groove for embedding a hoisting rope.

[0014] Compared with related technologies, the multifunctional rod-shaped auxiliary tool of this utility model divides the main body of the tool into a first shaft segment, a second shaft segment, and a third shaft segment along its axial direction. The first shaft segment has an overall conical structure, and its diameter gradually increases from the end away from the second shaft segment to the end closer to the second shaft segment, so that the structure of the first shaft segment is similar to that of the mandrel, thereby allowing the first shaft segment to be used for drawing the forging. The second shaft segment has an overall columnar structure, so that the second shaft segment can be equivalent to a lever, thereby realizing the enlargement of the hole in the forging. The third shaft segment has an overall cylindrical structure, and its opening is set away from the second shaft segment, so that the main body of the auxiliary tool can be connected to the forging through the third shaft segment to fix the forging and assist in forging. In this way, the mandrel and lever are integrated into the same auxiliary tool, thereby reducing the replacement of auxiliary tools during the forging process and improving forging efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the multifunctional rod-shaped assistive device in the embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the multifunctional rod-shaped auxiliary tool being stretched in an embodiment of this utility model.

[0017] Figure 3 This is a schematic diagram of the multifunctional rod-shaped auxiliary tool used for enlarging holes in an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1-First shaft segment; 2-Second shaft segment; 21-Plug; 211-Groove; 3-Third shaft segment; 31-Sleeve; 311-Protrusion; 4-Shoulder; 5-Extension platform; 51-Annular groove. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] In the attached diagram, the X-axis represents the horizontal position, with the positive direction of the X-axis (where the arrow points) indicating the right side and the negative direction (opposite to the positive direction) indicating the left side. Similarly, the Z-axis represents the vertical position, with the positive direction of the Z-axis (where the arrow points) indicating the top and the negative direction (opposite to the positive direction) indicating the bottom. It should be noted that the aforementioned representations of the X and Z axes are for ease of description and simplification only, and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0022] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0023] Combination Figure 1 As shown, this utility model provides a multifunctional rod-shaped assistive device, including an assistive device body. The assistive device body is divided into three shaft segments along its axial direction, namely a first shaft segment 1, a second shaft segment 2, and a third shaft segment 3. The second shaft segment 2 is used to connect the first shaft segment 1 and the third shaft segment 3. The diameter of the first shaft segment 1 gradually increases from the end away from the second shaft segment 2 to the end closer to the second shaft segment 2. The second shaft segment 2 has an overall cylindrical structure. The third shaft segment 3 has an overall cylindrical structure, and its opening is located at the end away from the second shaft segment 2.

[0024] Specifically, the axis of the auxiliary tool body is the X-axis direction. The end of the auxiliary tool body located in the negative direction of the X-axis is the left end, and the end located in the positive direction of the X-axis is the right end. Along the length direction of the auxiliary tool body, the auxiliary tool body is divided into a first shaft segment 1, a second shaft segment 2, and a third shaft segment 3. The second shaft end 2 connects the first shaft segment 1 and the third shaft segment 3. The diameter of the first shaft segment 1 gradually increases from the end away from the second shaft segment 2 to the end closer to the second shaft segment 2, that is, the diameter of the first shaft segment 1 gradually increases from left to right, that is, the first shaft segment 1 has a conical structure as a whole. The diameter of the second shaft segment 2 is equal at any position, that is, the second shaft segment 2 is a columnar structure with an equal diameter. The third shaft segment 3 is set as a cylindrical structure with an opening facing away from the second shaft segment 2, that is, the right end of the third shaft segment 3 is the open end, and the left end of the third shaft segment 3 is connected to the right end of the second shaft segment 2. The open end of the right end of the third shaft segment 3 can be used to connect with a forging to fix the forging. During the forging process, when the forging needs to be elongated, the left and right ends of the first shaft section 1 are respectively placed on the support, and the tapered structure of the first shaft section 1 is used for elongation (equivalent to the elongation of the mandrel); when the forging needs to be flared, such as Figure 2As shown, the main body of the horizontally moving auxiliary tool involves separating the first shaft section 1 from the bracket and fixing the left and right ends of the second shaft section 2 to the bracket, eliminating the need for replacement. The second shaft section 2 is used for hole enlargement (equivalent to a lever). When auxiliary fixing of forgings is required, such as... Figure 3 As shown, the forging is fixed at the opening of the third shaft section 3. The first shaft section 1 and the second shaft section 2 are used as the lifting positions of the third shaft section 3 for lifting. Then, the forging is fixed by the third shaft section 3 to assist in forging.

[0025] Based on the above embodiments, taking the forging of cylindrical forgings as an example, the traditional forging process is roughly as follows: after the mandrel is inserted into the forging, the forging is drawn out. After drawing, the mandrel is removed from the lifting equipment, and a lever is inserted into the drawn forging to enlarge the hole. When it is necessary to draw out large forgings, a sleeve needs to be connected to the forging, and the large forging is drawn out after the sleeve is lifted. Frequent changes of forging tools result in relatively low efficiency, and the storage space occupied by the mandrel, lever, and sleeve is also relatively large.

[0026] When the auxiliary fixture body of this application is forged: the first shaft section 1 is inserted into the forging for lengthening. After lengthening, the forging can be moved to the second shaft section 2, and the second shaft section 2 is fixed to the bracket for hole enlargement. During the lengthening and hole enlargement process, the auxiliary fixture body can be kept suspended without changing the auxiliary fixture, thus saving forging time. Furthermore, the third shaft section 3 is a sleeve, which assists in the forging of large forgings. The larger end is inserted into the jaws of the forging, and the smaller end is inserted into the second shaft section. It works in conjunction with the steel turning machine and the overhead crane, similar to a lever structure, which facilitates the movement and turning of large forgings and reduces the pressure on the operating machine. The protrusion of the third shaft section 3 is to prevent the forging from being damaged by the billet wrapping around the sleeve during the forging process. In summary, the auxiliary fixture body has the functions of a mandrel, lever, and sleeve, and can significantly reduce the floor space occupied during storage.

[0027] Therefore, in this embodiment, the main body of the auxiliary tool is divided into a first shaft segment 1, a second shaft segment 2, and a third shaft segment 3 along its axial direction. The first shaft segment 1 has an overall conical structure, and its diameter gradually increases from the end away from the second shaft segment 2 to the end closer to the second shaft segment 2, so that the structure of the first shaft segment 1 is similar to that of the mandrel, thereby allowing the first shaft segment 1 to be used for drawing the forging. The second shaft segment 2 has an overall columnar structure, so that the second shaft segment 2 can be equivalent to a lever, thereby realizing the enlargement of the hole in the forging. The third shaft segment 3 has an overall cylindrical structure, and its opening is set away from the second shaft segment 2, so that the main body of the auxiliary tool can be connected to the forging through the third shaft segment 3 to fix the forging and assist in forging. This realizes the integration of the mandrel and lever on the same auxiliary tool, thereby reducing the replacement of auxiliary tools during the forging process and improving forging efficiency.

[0028] The multifunctional rod-shaped auxiliary tool proposed in this embodiment integrates the traditional mandrel, lever, and sleeve. In the production process, the processing method of the traditional mandrel, lever, and sleeve can be referenced: the steel ingot is forged into a round rod shape, and the remaining structure is processed by cold working. The processing method of this application is similar. The first shaft segment 1 and the second shaft segment 2 are forged into a round rod shape using a steel ingot, and the remaining structure is processed by cold working. The third shaft segment 3 is forged into a stepped shape using a steel ingot, and the remaining structure is processed by cold working.

[0029] Optionally, the second shaft segment 2 and the third shaft segment 3 can be detachably connected.

[0030] Specifically, the auxiliary tool body has a detachable structure at the connection between the second shaft segment 2 and the third shaft segment 3. As mentioned above, the third shaft segment 3 can assist in forging. Detachably connecting the second shaft segment 2 and the third shaft segment 3 can prevent the third shaft segment 3 from affecting the drawing and hole expansion process.

[0031] Thus, by detachably connecting the second shaft segment 2 and the third shaft segment 3, the third shaft segment 3 can be flexibly disassembled to avoid affecting the drawing and hole enlarging process, thereby improving the reliability of the third shaft segment 3.

[0032] Optionally, combined Figure 1 As shown, a plug 21 is provided at one end of the second shaft segment 2 facing the third shaft segment 3, and a sleeve 31 is provided at one end of the third shaft segment 3 facing the second shaft segment 2. The plug 21 is used to connect with the sleeve 31.

[0033] Specifically, the second shaft segment 2 and the third shaft segment 3 are connected by a plug-in detachable connection. A plug 21 is provided at the right end of the second shaft segment 2 facing the third shaft segment 3. The diameter of the plug 21 is smaller than the diameter of the second shaft segment 2, and the plug 21 can be integrally formed with the second shaft segment 2. A sleeve 31 is provided at the left end of the third shaft segment 3 facing the second shaft segment 2. The outer diameter of the sleeve 31 is smaller than the outer diameter of the third shaft segment 3. The sleeve 31 can be integrally formed with the third shaft segment 3, and the inner cavity of the sleeve 31 is not connected to the inner cavity of the third shaft segment 3. In use, the second shaft segment 2 and the third shaft segment 3 are connected by inserting the plug 21 into the sleeve 31.

[0034] Thus, a plug 21 is provided at one end of the second shaft segment 2 facing the third shaft segment 3, and a sleeve 31 is provided at one end of the third shaft segment 3 facing the second shaft segment 2. The plug 21 and the sleeve 31 are inserted into each other, which simplifies the detachable connection between the second shaft segment 2 and the third shaft segment 3.

[0035] Optionally, combined Figure 1 As shown, the inner wall of the sleeve 31 is provided with a protrusion 311, and the outer wall of the plug 21 is provided with a groove 211. The protrusion 311 and the groove 211 are slidably connected.

[0036] Specifically, in conjunction with the above, during the process of inserting the plug 21 into the sleeve 31, the sliding connection between the protrusion 311 and the groove 211 can guide the insertion of the plug 21. Furthermore, during the use of the third shaft segment 3, the sliding connection between the protrusion 311 and the groove 211 can also restrict the relative rotation between the third shaft segment 3 and the second shaft segment 2, so as to ensure the stability of the third shaft segment 3 in use.

[0037] Optionally, the assistive device body is provided with a high-temperature resistant layer.

[0038] Specifically, the high-temperature resistant layer is disposed on the outer wall of the first shaft segment 1, the second shaft segment 2, and the third shaft segment 3.

[0039] Thus, by incorporating a high-temperature resistant layer into the main body of the assistive device, the lifespan of the device in high-temperature environments can be extended.

[0040] Optionally, combined Figure 1 As shown, an extension platform 5 is provided at the end of the first shaft segment 1 away from the second shaft segment 2. The extension platform 5 and the first shaft segment 1 form a stepped shaft structure. The extension platform 5 is used for hoisting.

[0041] Specifically, the extension platform 5 is located at the left end of the first shaft segment 1. The extension platform 5 is a columnar structure, and its outer diameter is smaller than that of the first shaft segment 1. The extension platform 5 and the first shaft segment 1 form a stepped shaft. Before lengthening and reaming, the plug 21 and the extension platform 5 can facilitate the lifting of the first shaft segment 1 and the second shaft segment 2.

[0042] Thus, an extension platform 5 for hoisting is provided at the end of the first shaft segment 1 away from the second shaft segment 2. The extension platform 5 and the first shaft segment 1 form a stepped shaft, which facilitates the hoisting of the main body of the auxiliary equipment.

[0043] Optionally, combined Figure 1 As shown, a shoulder 4 is provided at the junction of the second shaft segment 2 and the first shaft segment 1.

[0044] Specifically, the second shaft segment 2 is integrally formed with the first shaft segment 1. The diameter of the shoulder 4 is larger than the diameter of the first shaft segment 1 and the second shaft segment 2. During the drawing process, the shoulder 4 can resist the forging and prevent the forging from moving onto the second shaft segment 2, ensuring that the forging is drawn only on the first shaft segment 1, thereby ensuring the stability of the forging drawing process.

[0045] Optionally, the first shaft segment 1 is hollow inside to allow access to cooling liquid.

[0046] Specifically, during the drawing process, the temperature of the forging is relatively high. During the drawing process, cooling liquid can be introduced into the first shaft section 1 from the left end to cool the first shaft section 1 inside, reducing the impact of high temperature on the first shaft section 1. The cooled liquid can then flow out from the left end of the first shaft section 1.

[0047] Optionally, a temperature sensor is also included, which is embedded in the extension stage 5.

[0048] Specifically, a groove is reserved on the extension table 5, and a temperature sensor can be installed in the groove. The temperature sensor provides real-time feedback on the temperature of the first shaft segment 1 during the elongation process to ensure the stability of the first shaft segment 1 during the elongation process.

[0049] Optionally, combined Figure 1 As shown, the extension platform 5 is provided with an annular groove 51, which is used to embed the hoisting rope.

[0050] Specifically, the lifting rope can be a steel wire rope or an iron chain. During lifting, the lifting rope can be secured in the annular groove 51 to prevent the lifting rope from swaying on the extension platform 5, thereby improving the lifting stability of the auxiliary fixture body.

[0051] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A multi-functional stick assistive device, characterized by, The assistive device includes a main body, which is divided into three shaft segments along its axial direction, namely a first shaft segment (1), a second shaft segment (2) and a third shaft segment (3). The second shaft segment (2) is used to connect the first shaft segment (1) and the third shaft segment (3). The diameter of the first shaft segment (1) gradually increases from the end away from the second shaft segment (2) to the end closer to the second shaft segment (2). The second shaft segment (2) is cylindrical in shape. The third shaft segment (3) is cylindrical in shape and has an opening at the end away from the second shaft segment (2).

2. The multifunctional bar-shaped assistive device according to claim 1, wherein The second shaft segment (2) and the third shaft segment (3) are detachably connected.

3. The multifunctional rod-shaped assistive device according to claim 2, characterized in that, The second shaft segment (2) is provided with a plug (21) at one end facing the third shaft segment (3), and the third shaft segment (3) is provided with a sleeve (31) at one end facing the second shaft segment (2). The plug (21) is used to connect with the sleeve (31).

4. The multifunctional rod-shaped assistive device according to claim 3, characterized in that, The inner wall of the sleeve (31) is provided with a protrusion (311), and the outer wall of the plug (21) is provided with a groove (211). The protrusion (311) and the groove (211) are slidably connected.

5. The multifunctional rod-shaped assistive device according to claim 1, characterized in that, The surface of the assistive device is provided with a high-temperature resistant layer.

6. The multifunctional rod-shaped assistive device according to claim 1, characterized in that, An extension platform (5) is provided at one end of the first shaft segment (1) away from the second shaft segment (2). The extension platform (5) and the first shaft segment (1) form a stepped shaft structure. The extension platform (5) is used for hoisting.

7. The multifunctional rod-shaped assistive device according to claim 1, characterized in that, A shoulder (4) is provided at the junction of the second shaft segment (2) and the first shaft segment (1).

8. The multifunctional rod-shaped assistive device according to claim 1, characterized in that, The first shaft segment (1) is hollow inside to allow access to cooling liquid.

9. The multifunctional rod-shaped assistive device according to claim 6, characterized in that, It also includes a temperature sensor, which is located at the extension stage (5).

10. The multifunctional rod-shaped assistive device according to claim 6, characterized in that, The extension platform (5) is provided with an annular groove (51) for embedding the hoisting rope.