Tool for knurling shape of stop pin pressing plate
By designing embossing tools for stop pin pressure plates, using high-pressure presses and special punch structures, the problems of multiple shapes of bogie parts and low traditional processing efficiency in the high-speed rail and subway industries are solved, and efficient and large-scale processing and production are achieved.
Patent Information
- Application Number
- CN202421798254.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the high-speed rail and subway industries, bogie welding and assembly parts have many special shapes, which leads to low efficiency of traditional processing methods and difficult to achieve mass production. Especially when processing stop pin pressure plates, the shape is complex, and traditional methods are difficult to meet the requirements of large batches and high efficiency.
A tool for the embossed shape of stop pin pressure plate is designed, and the workpiece is embossed with a high-pressure press, including the lower and upper die of the stop pin pressure plate punch. The rapid stamping and forming is achieved through the tooth mold and the limiting column, reducing the workload and tool usage of the CNC milling machine.
It effectively improves processing efficiency, reduces manufacturing and processing costs, realizes large-scale production, and is suitable for large-scale railway workpieces.
Smart Images
Figure CN222985478U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tooling for the embossing shape of a stop pin pressing plate, belonging to the field of mechanical technology. Background Art
[0002] With the rapid development of the high-speed rail and subway industries, in order to ensure the processability and stability of bogie welding and fittings, the components of bogie welding and fittings are continuously optimized, resulting in a large number of special-shaped parts in welding and fittings. It is difficult to ensure the drawing dimensions by using a numerical milling cutter, with low efficiency and being not easy for mass production. When processing the stop pin pressing plate, the characteristics of this railway product are large batch and complex shape. Under the traditional processing method, the blank is a φ60x15 circle, and the dimensional position of the flower pattern is processed by numerical milling. In this way, the cutting depth is very small, the efficiency is slow, and the tool cost is high. Content of the Utility Model
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a tooling for the embossing shape of a stop pin pressing plate. This tooling can use a high-pressure press to emboss the workpiece, effectively improving the processing efficiency, reducing the processing cost, and reducing the workload of the numerical control milling machine.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a tooling for the embossing shape of a stop pin pressing plate, including a lower die of the stop pin pressing plate punching die, a punch head of the upper die of the stop pin pressing plate punching die, and an upper die of the stop pin pressing plate punching die. The cross-section of the lower die of the stop pin pressing plate punching die is a convex-shaped structure. There is a circular groove at the top of the lower die of the stop pin pressing plate punching die, and a vertical limiting column is fixed at the center of the circular groove. Around the circular groove, there are three evenly spaced notches on the lower die of the stop pin pressing plate punching die. The cross-section of the punch head of the upper die of the stop pin pressing plate punching die is an inverted convex-shaped structure. There is a tooth-shaped die with 36 teeth on the bottom plane of the punch head of the upper die of the stop pin pressing plate punching die. There is a vertical limiting column hole at the center of the bottom inside the punch head of the upper die of the stop pin pressing plate punching die, and the limiting column can be inserted into the limiting column hole in a matching manner. The punch head of the upper die of the stop pin pressing plate punching die and the upper die of the stop pin pressing plate punching die are connected up and down by bolts. The upper die of the stop pin pressing plate punching die is located above the punch head of the upper die of the stop pin pressing plate punching die, and there is an upper die shank on the upper die of the stop pin pressing plate punching die.
[0005] The beneficial effects of the utility model are: the utility model effectively reduces the manufacturing and processing costs. After using the press to emboss, it not only ensures the requirements of the drawing dimensions but also enables mass production, improving the processing efficiency; reduces the workload of the numerical control milling machine and saves the tool usage; is suitable for railway workpieces with large batches. Description of the Drawings
[0006] The following further illustrates the utility model in conjunction with the drawings and specific embodiments.
[0007] Figure 1 It is a structural schematic diagram of the present utility model.
[0008] Figure 2 It is a top view of the lower die of the stop pin press plate punching die of the present utility model.
[0009] Figure 3 It is Figure 2 a schematic view in the A - A direction of
[0010] Figure 4 It is a sectional schematic diagram of the punch head of the upper die of the stop pin press plate punching die of the present utility model.
[0011] Figure 5 It is Figure 4 an enlarged schematic view at position B of
[0012] Figure 6 It is a top view of the punch head of the upper die of the stop pin press plate punching die of the present utility model.
[0013] Figure 7 It is a front view of the upper die of the stop pin press plate punching die of the present utility model.
[0014] Figure 8 It is Figure 7 a top view of
[0015] Figure 9 It is a schematic diagram of the tooth - shaped die of the present utility model.
[0016] Reference numerals in the figure:
[0017] 1. Lower die of the stop pin press plate punching die, 101. Limit post, 102. Circular groove, 103. Notch, 2. Workpiece, 3. Punch head of the upper die of the stop pin press plate punching die, 301. Limit post hole, 302. Tooth - shaped die, 4. Upper die of the stop pin press plate punching die, 401. Upper die shank. Specific embodiments
[0018] As Figure 1As shown in FIGS. 9, a tooling for the embossing shape of a stop pin pressing plate includes a lower die 1 of a stop pin pressing plate punching die, a punch 3 of an upper die of a stop pin pressing plate punching die, and an upper die 4 of a stop pin pressing plate punching die. The cross-section of the lower die 1 of the stop pin pressing plate punching die is a convex-shaped structure. A circular groove 102 is provided at the top of the lower die 1 of the stop pin pressing plate punching die, and a vertical limiting column 101 is fixed at the center of the circular groove 102. Around the circular groove 102, three evenly spaced notches 103 are provided on the lower die 1 of the stop pin pressing plate punching die. The cross-section of the punch 3 of the upper die of the stop pin pressing plate punching die is an inverted convex-shaped structure. A tooth-shaped die 302 with 36 teeth is provided on the bottom plane of the punch 3 of the upper die of the stop pin pressing plate punching die. A vertical limiting column hole 301 is provided at the center of the bottom inside the punch 3 of the upper die of the stop pin pressing plate punching die, and the limiting column 101 can be inserted into the limiting column hole 301 in a matching manner. The punch 3 of the upper die of the stop pin pressing plate punching die and the upper die 4 of the stop pin pressing plate punching die are connected up and down by bolts. The upper die 4 of the stop pin pressing plate punching die is located above the punch 3 of the upper die of the stop pin pressing plate punching die, and an upper die shank 401 is provided on the upper die 4 of the stop pin pressing plate punching die.
[0019] During the use process, the lower die 1 of the stop pin pressing plate punching die is placed on the workbench of a special punching machine and fixed by a pressing plate. The upper die shank 401 is fixedly installed inside the tool shank of the press. The workpiece 2 is placed in the circular groove 102 of the lower die 1 of the stop pin pressing plate punching die in a matching manner. The central hole of the workpiece 2 is connected with the limiting column 101 in a matching manner. The tooth-shaped die 302 on the punch 3 of the upper die of the stop pin pressing plate punching die is used to quickly stamp and form the workpiece 2. After the embossing is completed, the press drives the punch 3 of the upper die of the stop pin pressing plate punching die and the upper die 4 of the stop pin pressing plate punching die to automatically rise, and the workpiece 2 can be taken out through the notch 103.
[0020] The purpose of the present utility model is to improve the processing efficiency. When embossing, only need to steadily place the workpiece 2 into the lower die 1 of the stop pin pressing plate punching die, and then operate the press to adjust to a reasonable pressure and perform stamping. According to the characteristics of the workpiece 2, use a numerical control lathe to machine the dimensions of each part of the outer shape and inner hole, and then use surface grinding to ensure the parallelism requirements of the two planes in the height direction. Finally, place the workpiece 2 in the tooling, and use a high-pressure press to emboss the workpiece 2. While ensuring the requirements of the drawing dimensions and geometric tolerances, the processing efficiency is also improved. Let the numerical control lathe ensure the clearance fit between the outer diameter of the workpiece and the lower die of the designed tooling. Through the notch 103, it can be ensured that the workpiece 2 is convenient to take out after stamping, and the tooth-shaped die 302 can also ensure the dimensional requirements of the flower pattern of the workpiece 2.
Claims
1. A tool for embossing the shape of a stop pin pressure plate, characterized in that: It comprises a stop pin pressing plate die lower die (1), a stop pin pressing plate die upper die punch (3) and a stop pin pressing plate die upper die (4), wherein the cross section of the stop pin pressing plate die lower die (1) is a convex structure, a circular groove (102) is provided at the top of the stop pin pressing plate die lower die (1), and a vertical limiting column (101) is fixed at the center of the circular groove (102); The cross section of the upper die punch (3) of the stop pin pressing plate die is an inverted convex structure; the bottom plane of the upper die punch (3) of the stop pin pressing plate die is provided with a toothed die (302) with 36 teeth; a vertical limiting column hole (301) is provided at the bottom center of the upper die punch (3) of the stop pin pressing plate die; the limiting column (101) can be inserted into the limiting column hole (301); the upper die punch (3) of the stop pin pressing plate die and the upper die (4) of the stop pin pressing plate die are connected up and down by bolts; the upper die (4) of the stop pin pressing plate die is located above the upper die punch (3) of the stop pin pressing plate die; and the upper die handle (401) is provided on the upper die (4) of the stop pin pressing plate die.
2. A tool for embossing the shape of a stop pin pressure plate according to claim 1, characterized in that: Around the circular groove (102), three evenly spaced notches (103) are provided on the lower die (1) of the stop pin pressing plate punch.