Forging and punching positioner for ring piece

Abstract

The utility model belongs to the field of ring piece forging, and particularly relates to a ring piece forging punching positioner. Comprising supporting arm positioning rods (1), an annular base body (2) and movable calipers (3), the annular base body (2) is connected with four supporting arm positioning rods (1), the included angle between every two adjacent supporting arm positioning rods (1) is 90 degrees, scales are marked on each supporting arm positioning rod (1), a movable sliding rail is arranged in each supporting arm positioning rod (1), the movable calipers (3) are arranged in each supporting arm positioning rod (1), and the movable calipers (3) can move in the supporting arm positioning rods (1).

Description

Technical Field

[0001] The utility model belongs to the field of forging of ring-shaped parts, and particularly relates to a punching positioner for forging ring-shaped parts. Background Art

[0002] The forging production of ring-shaped parts mainly goes through the processes of upsetting forming and punching, and then the hole is expanded by a ring rolling machine. The punching process is as Figure 1 shown. 10 is the punch, 20 is the forging blank, and the equipment gives the punch 10 a vertical downward pressure to punch a round hole at the center position of the blank 20. Usually during the punching operation, the blank 20 is placed horizontally on the operating platform. After visual inspection by the operator, the punch 1 is placed at the center position according to experience, and then the pressure equipment directly starts working.

[0003] The volume of the forging blank for ring-shaped parts is precisely calculated. The punching process requires the punch to be maintained at the center position to avoid affecting subsequent processes. In the past, when positioning the punch by manual experience, the centrality of the punch could not be accurately guaranteed. Eventually, the punching would show displacement eccentricity. After the forging is punched and offset, it needs to be corrected by a lathe before the next process can be carried out. This will cause the process personnel to increase the amount of blank raw materials invisibly to avoid missing material when designing the process, and at the same time increase the overall workload, affect the production cycle. Severely eccentric forgings may even be scrapped due to missing material after being corrected by a lathe. Therefore, it is necessary to use a positioning tool to accurately position the punch at the center of the blank, so that the blank after punching can obtain an approximately concentric round hole, reduce the error rate, the subsequent processes can proceed smoothly, the production cycle can be shortened, and the production efficiency can be improved. Content of the Utility Model

[0004] Purpose of the utility model: To provide a punching positioner for forging ring-shaped parts, improve the accuracy of center punching of ring-shaped parts, reduce the punching position error caused by manual free control, accurately calculate the amount of forging raw materials used, reduce the workload of the overall production process, reduce the energy consumption during the process, and promote the production cycle.

[0005] Technical Solution:

[0006] A punching positioner for forging ring-shaped parts includes: a support arm positioning rod 1, an annular base 2, and a movable caliper 3. Among them, 4 support arm positioning rods 1 that are 90° to each other are connected to the annular base 2. Each support arm positioning rod 1 is marked with scales, internally provided with a movable slide rail, and is equipped with a movable caliper 3. The movable caliper 3 can move within the support arm positioning rod 1.

[0007] Further, the inner hole diameter d of the annular base 2 is customized according to actual production requirements, and the inner diameter d of the annular base 2 is 5 mm larger than the punching diameter.

[0008] Further, the connection between the support arm positioning rod 1 and the annular base 2 can be fixed by nuts or welding.

[0009] Further, the length of the contact part between the arm positioning rod 1 and the annular base 2 is about where D is the outer diameter of the annular base 2.

[0010] Further, a groove is provided at the connection between the annular base 2 and the arm positioning rod 1. The depth of the groove is h, and the height of the arm positioning rod 1 is also h.

[0011] Further, the depth of the groove is h, which is The lower end face of the annular base 2 is kept flat.

[0012] Beneficial effects:

[0013] The structure of the utility model is simple and convenient to use. Compared with the traditional manual visual inspection method, the positioning tool provided by the utility model can accurately position the punch in the central area of the cake blank, realizing the precision and stability of the punching operation. Description of the drawings

[0014] Figure 1 is a schematic diagram of the forging punching process of the annular part.

[0015] In the figure: 10 - punch, 20 - cake blank.

[0016] Figure 2 is a schematic diagram of the ring forging punching locator provided by the utility model.

[0017] In the figure: 1 - arm positioning rod, 2 - annular base, 3 - movable caliper. Detailed implementation manners

[0018] To achieve the above technical purpose, the utility model provides a locator for accurately positioning the punching position during the forging of annular parts. By using the locator, the central position of the cake blank can be directly determined, thereby determining the placement area of the punch, and the punching operation can be carried out accurately, reducing the error caused by direct manual operation, and then ensuring the stable progress of the production of annular parts.

[0019] The basic composition of a ring forging punching locator provided by the utility model is as Figure 2 shown, including an arm positioning rod 1, an annular base 2, and a movable caliper 3. Four arm positioning rods 1 that are 90° to each other are connected to the annular base 2. Each arm positioning rod 1 is marked with scales, internally provided with a movable slide rail, and equipped with a movable caliper 3, and the movable caliper can move within the arm positioning rod 1. When the utility model is used, first place the cake blank horizontally on the equipment operating table, then place the punching locator on the cake blank, thereby determining the central position of the cake blank, place the punch in the inner circular hole of the annular base 2, and then remove the punching locator, and perform the punching operation at this position, and an inner circular hole approximately concentric with the outer contour circle of the cake blank can be obtained.

[0020] To meet the requirement that one locator can position blank cakes of multiple specified diameters, the support arm positioning rod 1 is marked with scales and is internally provided with a moving slide rail. The moving caliper 3 can move freely. Before the punching operation, the position of the caliper 3 is set in advance according to the diameter of the blank cake and fixed, and then the positioning work of the blank cake with the corresponding diameter can be carried out.

[0021] This tool is applicable to the process of punching blank cakes during the forging of ring parts.

[0022] The diameter d of the inner hole of the locator is customized according to the actual production requirements, and the inner diameter d of the locator is about 5 mm larger than the punching diameter.

[0023] The connection between the support arm positioning rod 1 and the annular base 2 can be fixed by using nuts or welding. In order to make the connection firm, the length of the contact part between the support arm positioning rod 1 and the annular base 2 is about

[0024] A groove is provided at the connection between the annular base 2 and the support arm positioning rod 1. The depth of the groove is h, and the height of the support arm positioning rod 1 is also h, which is about half of the height H of the annular base. The lower end face of the locator remains flat.

[0025] Using the tool can improve the accuracy of center punching of ring parts, reduce the punching position error caused by manual free control, accurately control the usage of forging raw materials, reduce the workload of the overall production process, reduce the energy consumption during the process, and promote the production cycle.

[0026] The following further illustrates the present utility model in combination with examples, but the scope of the present utility model is not limited to these examples only.

[0027] The forging required for the preparation of parts of a certain type of engine is a ring part with a relatively thin wall thickness. The blank is first upset into a cake, and the position of the punch is placed according to traditional manual experience without precise positioning, which is likely to cause the punching to deviate from the center position. Subsequently, it needs to be machined and corrected to make it concentric with the outer circle. However, due to the relatively thin wall thickness of this ring part, it is very easy to cause dimensional tolerance, affecting the overall process. By using the punching locator of the present utility model, the inner diameter of the locator is customized according to the size of the punch required for this ring part, and the position of the caliper 3 is adjusted in advance according to the diameter of the blank cake using the scales on the support arm positioning rod 2. During the punching operation, the punching locator is placed above this blank cake, and then the punch is placed in the inner hole of the locator. After removing the locator, the punching operation is carried out. Finally, after punching, the inner hole and the outer contour circle of the blank cake have a high concentricity, without additional correction measures, and the subsequent processes can proceed smoothly, ensuring precise production and avoiding additional energy losses.

Claims

1. A ring forging punching positioner, characterized in that: include: An arm positioning rod (1), an annular base (2), and a movable caliper (3), wherein the annular base (2) is connected to four arm positioning rods (1) which are 90 degrees apart from each other, each arm positioning rod (1) is marked with a scale, has a built-in movable slide rail, and is equipped with a movable caliper (3), and the movable caliper (3) can move inside the arm positioning rod (1).

2. The ring forging and punching positioner according to claim 1, characterized in that: The inner hole diameter d of the annular base (2) is customized according to actual production requirements. The inner diameter d of the annular base (2) is 5 mm larger than the punching diameter.

3. The ring forging punching positioner according to claim 2, characterized in that: The connection between the support arm positioning rod (1) and the annular base (2) can be fixed by using a nut or welding.

4. The ring forging punching positioner according to claim 3, characterized in that: The length of the contact portion between the support arm positioning rod (1) and the annular base (2) is approximately Wherein, D is the outer diameter of the annular base (2).

5. The ring forging punching positioner according to claim 4, characterized in that: A groove is provided at the connection between the annular base (2) and the support arm positioning rod (1), the depth of the groove is h, and the height of the support arm positioning rod (1) is also h.

6. The ring forging and punching positioner according to claim 5, characterized in that: The depth of the groove is h, which is the height H of the annular base (2). The lower end surface of the annular base (2) remains flat.

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