Tool special for forge piece
By designing special tooling for forgings, analyzing the position of the parting surface and simplifying the part structure, the problems of feed weight and long processing cycle in the existing forging processing methods are solved, and the weight of forgings is significantly reduced and the production efficiency is improved.
Patent Information
- Application Number
- CN202421798256.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Due to the free forging scheme, the existing forging processing methods have heavy feeding, long processing cycle, low efficiency and high cost, making it difficult to meet the needs of mass production.
A special tool for forgings is designed, including upper die and lower die. By analyzing the position of the forging surface, filling the remaining material with appropriate process, and simplifying the structure of some parts according to the metal flow characteristics, facilitating mold output and reducing the weight of feeding.
By using special tooling for forgings, the weight of forgings is reduced to 50% of the original plan, which greatly reduces the feed weight and raw material cost, improves the production efficiency of hot and cold processing, and shortens the processing time by 2 to 3 times, making it suitable for large-scale railway workpiece processing.
Smart Images
Figure CN222817862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a special tooling for forgings, belonging to the technical field of electrical equipment. Background Art
[0002] With the rapid development of high-speed rail and subway industries, in order to ensure the processability and stability of bogie welding, bogie welding parts are constantly optimized, resulting in a large number of welded forgings with special shapes. It is difficult to ensure the size of the anti-snaking shock absorber seat blank drawing by free forging, which is inefficient and costly. The existing processing method uses free forging scheme to forge the billet with heavy feed and large cutting amount. Based on the maximum outer contour of the part, the processing allowance is extended outward by 7-8mm, the process excess material filling is large, and the feed is heavy. Because the characteristics of railway products are large batches and complex shapes, the forging processing cycle of this forging scheme is long, which affects the processing efficiency. Utility Model Content
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a special tooling for forgings, which can effectively reduce the weight of the feed material, improve the forging finished product rate, and improve the production efficiency of forging and machining, and is suitable for mass production.
[0004] The utility model solves the technical problem by adopting the following technical scheme: a special tooling for forgings, comprising a lower die and an upper die, wherein the upper die is correspondingly combined with the lower die, the lower die comprises a tooling body I and a dovetail groove A, the upper die comprises a tooling body II and a dovetail groove B, the dovetail groove A is arranged at the middle position of one side of the height direction of the tooling body I, and the dovetail groove A and the tooling body I are an integral structure; the dovetail groove A is provided with a central keyway at the middle position of one side in the length direction, and a protruding guide lock is fixed at each of the four corners on the other side in the height direction of the tooling body I; on the guide lock side, a cavity I is provided at the middle position of the plane of the tooling body I, and a circle of flash groove is provided around the cavity I; at the middle position between two guide locks in the width direction of the tooling body I, a jaw in an inclined direction is provided on the tooling body I;
[0005] The dovetail groove B is arranged at the middle position on one side of the height direction of the tooling body II, and the dovetail groove B and the tooling body II are an integral structure; the dovetail groove B is also provided with a center keyway at the middle position on one side of the length direction, and a depression is provided at each of the four corners on the other side of the height direction of the tooling body II, and the depressions correspond to the guide locks on their respective sides up and down, and the guide locks can be inserted into the depressions; on the side of the depression, a cavity II is provided at the middle position of the plane of the tooling body II, and a circle of flash grooves is also provided around the cavity II; at the middle position between two of the depressions in the width direction of the tooling body II, an inclined jaw is also provided on the tooling body II.
[0006] The dovetail groove A is flush with both ends of the tooling body I, and the dovetail groove B is flush with both ends of the tooling body II; the cavity II corresponds to the cavity I up and down; the upper and lower center keyways are located on the same side, and the upper and lower jaws are located on the same side. After the upper and lower molds are combined in correspondence with each other, the inclination directions of the two jaws correspond up and down and are arranged symmetrically.
[0007] The beneficial effects of the utility model are as follows: the utility model aims to reduce the weight of the feed material under the premise of ensuring the machinability of the forging, analyzes the position of the parting surface of the forging according to the structural characteristics of the product, fills the appropriate process surplus material, and performs demolding treatment on both sides based on the parting surface, and simplifies the structure of some parts according to the metal flow characteristics for easy demolding, so that the weight of the forging after the redesign is only 50% of the weight of the original plan, and the use of the special tooling for forgings greatly reduces the weight of the feed material and reduces the cost of raw materials; the use of the special tooling for forgings is simple and convenient, and continuous production can be achieved by one die, reducing all the inspection procedures of the process, and improving the hot processing production efficiency; the use of the special tooling for forgings reduces the cutting amount of machining, improves the cold processing production efficiency, greatly shortens the processing time, and can fully process workpieces that meet the requirements of the drawings and technical conditions, and the processing efficiency can be improved by 2 to 3 times; it is suitable for large-scale railway workpiece processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0009] Figure 1 It is a schematic diagram of the external structure of the tooling body I of the utility model.
[0010] Figure 2 It is a schematic diagram of the internal structure of the tooling body I of the utility model.
[0011] Figure 3 It is a schematic diagram of the external structure of the tooling body II of the utility model.
[0012] Figure 4 It is a schematic diagram of the internal structure of the tooling body II of the utility model.
[0013] Figure 5 It is a schematic diagram of the combination of the upper die and the lower die of the utility model.
[0014] Figure 6 It is a schematic diagram of the anti-snake shock absorber mount.
[0015] Figure 7 It is a schematic diagram of the original forging plan of the anti-snake shock absorber seat product.
[0016] Figure 8 yes Figure 7 Side view of.
[0017] Numbers in the figure:
[0018] 1. Tool body I, 2. Dovetail groove A, 3. Center keyway, 4. Flanged groove, 5. Jaw, 6. Cavity I, 7. Guide lock, 8. Tool body II, 9. Dovetail groove B, 10. Recess, 11. Cavity II. DETAILED DESCRIPTION
[0019] like Figure 1 As shown in FIG. 8, a special tooling for forgings comprises a lower die and an upper die, wherein the upper die is correspondingly combined with the lower die in the upper and lower parts, the lower die comprises a tooling body Ⅰ1 and a dovetail groove A2, the upper die comprises a tooling body Ⅱ8 and a dovetail groove B9, the dovetail groove A2 is arranged at the middle position on one side of the height direction of the tooling body Ⅰ1, and the dovetail groove A2 and the tooling body Ⅰ1 are an integral structure; the dovetail groove A2 is provided with a center keyway 3 at the middle position on one side in the length direction, and a protruding guide lock 7 is fixed at each of the four corners on the other side in the height direction of the tooling body Ⅰ1; on the side of the guide lock 7, a cavity Ⅰ6 is provided at the middle position of the plane of the tooling body Ⅰ1, and a circle of flash grooves 4 is provided around the cavity Ⅰ6; at the middle position between two of the guide locks 7 in the width direction of the tooling body Ⅰ1, an inclined jaw 5 is provided on the tooling body Ⅰ1.
[0020] The dovetail groove B9 is arranged at the middle position on one side of the height direction of the tooling body Ⅱ8, and the dovetail groove B9 and the tooling body Ⅱ8 are an integral structure; the dovetail groove B9 is also provided with a center keyway 3 at the middle position on one side of the length direction, and a depression 10 is provided at the four corners on the other side of the height direction of the tooling body Ⅱ8, and the depression 10 corresponds to the guide lock 7 on each side up and down, and the guide lock 7 can be inserted into the depression 10; on the side of the depression 10, a cavity Ⅱ11 is provided in the middle position of the plane of the tooling body Ⅱ8, and a circle of flash grooves 4 are also provided around the cavity Ⅱ11; at the middle position between two of the depressions 10 in the width direction of the tooling body Ⅱ8, a jaw 5 in an inclined direction is also provided on the tooling body Ⅱ8.
[0021] The dovetail groove A2 is flush with both ends of the tooling body Ⅰ1, and the dovetail groove B9 is flush with both ends of the tooling body Ⅱ8; the cavity Ⅱ11 corresponds to the cavity Ⅰ6 up and down; the upper and lower center keyways 3 are located on the same side, and the upper and lower jaws 5 are located on the same side. After the upper and lower molds are combined in correspondence with each other, the inclination directions of the two jaws 5 correspond up and down and are arranged symmetrically.
[0022] During use, a piece of raw material fired at at least 1180°C is placed in the cavity Ⅰ6 of the lower die, and the upper die falls quickly to hit the blank 5 to 8 times, and the forging can be formed; the dovetail grass A2 and the dovetail groove B9 are used to connect with the relevant pressure equipment, the upper and lower center keyways 3 are the positioning grooves of the tooling and the pressure equipment, ensuring that the center of gravity of the tooling is the same as the striking center of the equipment, the flash groove 4 can accommodate excess metal of the forging, the jaws 5 are used for demolding of the forging, the cavity Ⅰ6 and the cavity Ⅱ11 are used for forging forming, and the guide lock 7 is connected to the recess 10 to ensure that the tooling does not shift during operation.
[0023] According to the shape characteristics of the parts, process materials are added locally, and the plane with the largest horizontal projection area of the parts is selected as the parting surface of the forging. The hammer forging die is generally divided into an upper and lower half die (referred to as the upper and lower dies). The joint surface of the upper and lower dies is the parting surface. According to the shape of the forgings on both sides of the parting surface, the corresponding mold is made, and reasonable fillets and draft angles are selected. On the basis of ensuring the size of the forgings during work, the feed weight is greatly reduced, the cost is reduced, and the production and processing efficiency is improved.
Claims
1. A special tool for forgings, characterized by: The invention comprises a lower die and an upper die, wherein the upper die is connected to the lower die in a corresponding manner, the lower die comprises a tool body I (1) and a dovetail groove A (2), the upper die comprises a tool body II (8) and a dovetail groove B (9), the dovetail groove A (2) is arranged at the middle position of one side of the tool body I (1) in the height direction, and the dovetail groove A (2) and the tool body I (1) are an integral structure; a central key groove (3) is arranged at the middle position of one side in the length direction of the dovetail groove A (2), and a protruding guide lock (7) is fixed at each of the four corners on the other side of the height direction of the tool body I (1); on the side of the guide lock (7), a cavity I (6) is arranged at the middle position of the plane of the tool body I (1), and a circle of flash grooves (4) are arranged around the cavity I (6); and a jaw (5) in an inclined direction is arranged on the tool body I (1) at the middle position between two guide locks (7) in the width direction of the tool body I (1); The dovetail groove B (9) is arranged at the middle position of one side of the tooling body II (8) in the height direction, and the dovetail groove B (9) and the tooling body II (8) are an integral structure; the dovetail groove B (9) is also provided with a central keyway (3) at the middle position of one side in the length direction, and a depression (10) is provided at each of the four corners on the other side in the height direction of the tooling body II (8), and the depression (10) corresponds to the guide lock (7) on each side, and the guide lock (7) can be inserted into the depression (10); on the side of the depression (10), a cavity II (11) is provided at the middle position of the plane of the tooling body II (8), and a circle of flash grooves (4) are also provided around the cavity II (11); and at the middle position between two of the depressions (10) in the width direction of the tooling body II (8), a jaw (5) in an inclined direction is also provided on the tooling body II (8).
2. A special tool for forgings according to claim 1, characterized in that: The dovetail groove A (2) is flush with both ends of the tooling body I (1), and the dovetail groove B (9) is flush with both ends of the tooling body II (8).
3. A special tool for forgings according to claim 1, characterized in that: The cavity II (11) corresponds to the cavity I (6) in the upper and lower parts.
4. A special tool for forgings according to claim 1, characterized in that: The upper and lower center keyways (3) are located on the same side, the upper and lower jaws (5) are located on the same side, and after the upper die and the lower die are connected in correspondence with each other, the inclination directions of the two jaws (5) correspond to each other and are arranged symmetrically.