Auxiliary tool for detecting unfilled fillet of rotary forge piece

Abstract

The utility model discloses an auxiliary tool for detecting an underfilled fillet of a rotary forge piece. The auxiliary tool comprises a first measuring section, and a second measuring section and a holding section which are respectively connected with the first measuring section, a reference edge is arranged on the first measuring section, and a lower die fillet auxiliary detection edge is arranged on one side, close to the first measuring section, of the second measuring section; an upper die fillet auxiliary detection edge is arranged on one side, far away from the first measurement section, of the second measurement section; the reference edge, the lower die fillet auxiliary detection edge and the upper die fillet auxiliary detection edge are located in the same plane. An obtuse angle is formed between the reference edge and the lower die fillet auxiliary detection edge, the obtuse angle is 92 degrees, the reference edge can be attached to the upper end face or the lower end face of a to-be-detected rotary forge piece, and the lower die fillet auxiliary detection edge and the upper die fillet auxiliary detection edge are located in the same plane. By means of the device, the size of the underfilled defect of the outer fillet of the forge piece can be rapidly determined, the detection efficiency is effectively improved, and the detection result is more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of subsequent processing of forged blanks, relates to an auxiliary tool for detection, and specifically relates to an auxiliary tool for detecting incomplete fillet of a rotary forging. Background Art

[0002] Forging is a processing method that uses forging machinery to apply pressure to metal blanks to cause them to undergo plastic deformation to obtain forgings with certain mechanical properties, shapes and sizes. Forgings are workpieces or blanks obtained by forging and deforming metal blanks. In order to make it easier for the metal to flow and fill the grooves, improve the quality of forgings and extend the life of the forging dies, all transitions on the die forgings must be connected with arcs. In forging, incomplete filleting is a common forging defect, which is mostly caused by low or uneven forging temperatures, poor metal fluidity, insufficient hammering force of equipment, inappropriate roughing or uneven round cakes, and misalignment. Incomplete filleting defects affect the radial and axial processing amounts of forgings, so they need to be detected. Since the shape of forgings with incomplete fillets does not match the drawings, it is not easy to detect the size of the incomplete fillet using conventional methods. The underfill defects of the forgings formed by the upsetting of the rotating body will occur at the outer and inner corners, especially at the outer corners. The outer corner defects of the forgings are usually sloped, and the slope is not fixed, which cannot be detected by the existing fillet measuring tool r gauge. Due to the lack of suitable auxiliary tools for detection, in actual production, it is often judged by visual inspection whether the forgings need to be scrapped, or the forgings with underfill defects are directly processed on the machining equipment. The disadvantages of such operation are: the judgment is rough and the human factor has a great influence; misjudgment will lead to the scrapping of qualified products, resulting in cost waste. If the blank has no processing volume, it will cause waste of transportation and labor time, which will eventually increase the production cost of the enterprise. Utility Model Content

[0003] In view of the technical problems existing at this stage, the purpose of the utility model is to provide an auxiliary tool for detecting incomplete fillet defects of rotating forgings, so as to solve the technical problem of difficulty in detecting fillet defects of rotating forgings in the prior art.

[0004] In order to achieve the above object, the utility model discloses the following technical solutions:

[0005] An auxiliary tool for detecting incomplete fillet of a rotary forging, comprising a first measuring section, and a second measuring section and a gripping section respectively connected to the first measuring section;

[0006] A reference edge is arranged on the first measuring section, and a lower mold radius auxiliary detection edge is arranged on the side of the second measuring section close to the first measuring section; an upper mold radius auxiliary detection edge is arranged on the side of the second measuring section away from the first measuring section; the reference edge, the lower mold radius auxiliary detection edge and the upper mold radius auxiliary detection edge are located in the same plane.

[0007] The utility model also has the following technical features:

[0008] Specifically, a first obtuse angle is formed between the reference edge and the lower mold rounded corner auxiliary detection edge, and the angle of the first obtuse angle is 92°.

[0009] Furthermore, a second obtuse angle is formed between the holding section and the first measuring section, and the angle of the second obtuse angle is 110° to 150°.

[0010] Furthermore, the auxiliary tool is a metal auxiliary tool.

[0011] Furthermore, the first measuring section and the second measuring section are both provided with scales, and the scales are provided at the edges of the first measuring section and the second measuring section.

[0012] Furthermore, the thickness of the auxiliary tool is 2 to 4 mm.

[0013] Furthermore, the angle of the second obtuse angle is 110°.

[0014] Furthermore, the thickness of the auxiliary tool is 2 mm.

[0015] Furthermore, a hanging hole is provided on one end of the holding section away from the first measuring section.

[0016] Furthermore, the diameter of the hanging hole is 5 mm.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model has a simple structure, low manufacturing cost, and accurate and reliable measurement results. A reference edge and a measuring edge are formed by connecting a first measuring section and a second measuring section. The reference edge and the auxiliary detection edge of the upper die corner radius / the auxiliary detection edge of the lower die corner radius are on the same side. When detecting the margin, the reference edge and the auxiliary detection edge of the upper die corner radius / the auxiliary detection edge of the lower die corner radius are used as a reference. Combined with a vernier caliper, the reference missing amount of the forging in the axial and radial directions can be accurately measured, the detection speed is improved, misjudgment is not likely to occur, and the error is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present disclosure and constitute a part of the specification. They are used to explain the present disclosure together with the following detailed description, but do not constitute a limitation of the present disclosure.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2This is a schematic diagram of the detection of the utility model;

[0022] Figure 3 It is a cross-sectional view of the rotating forging to be tested.

[0023] Numbers in the figure:

[0024] 1-first measuring section, 2-second measuring section, 3-holding section, 4-hanging hole; 11-reference edge, 21-lower die radius auxiliary detection edge, 22-upper die radius auxiliary detection edge.

[0025] The following specific implementation manner describes this solution in detail. DETAILED DESCRIPTION

[0026] It should be noted that when describing the orientation of the present invention, the orientation or positional relationship indicated by the terms "upper end", "lower end", etc. is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. If the specific posture changes, the directional indication will also change accordingly. In the present invention, unless otherwise clearly stipulated and limited, the terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0028] The technical terms involved in this utility model are explained as follows:

[0029] Die radius: the radius of the lower end face of the forging

[0030] Upper die radius: the radius of the upper end face of the forging

[0031] Radial defect amount a: refers to the radial distance between the starting position of the defect point (the position closest to the center of the lower end face) and the side wall at the defect point of the rotating forging.

[0032] Axial defect amount b: refers to the axial distance between the starting position of the defect point (the position with the shortest vertical distance to the upper end face) and the lower end face at the defect point of the rotating forging.

[0033] Axial allowance l: refers to the processing amount reserved for the forging in the axial direction, also known as the axial removal amount, which is the thickness of the metal layer turned off from the end face during machining.

[0034] Radial allowance l': refers to the radial processing amount reserved for the forging, which is the thickness of the turned metal layer reserved in the outer circle direction of the circular section of the forging after removing the axial removal amount.

[0035] Unless otherwise specified, the components in the present invention can be purchased from the market.

[0036] Example 1

[0037] Following the above technical solution, Figure 1 to Figure 2 As shown, this embodiment discloses an auxiliary tool for detecting incomplete fillet of a rotating forging, comprising a first measuring section 1, and a second measuring section 2 and a gripping section 3 respectively connected to the first measuring section 1;

[0038] A reference edge 11 is arranged on the first measuring section 1, and a lower die corner radius auxiliary detection edge 21 is arranged on the side of the second measuring section 2 close to the first measuring section 1; an upper die corner radius auxiliary detection edge 22 is arranged on the side of the second measuring section 2 away from the first measuring section 1; the reference edge 11, the lower die corner radius auxiliary detection edge 21 and the upper die corner radius auxiliary detection edge 22 are located in the same plane.

[0039] The reference edge 11 can be fitted with the upper end face or the lower end face of the rotating forging to be inspected, and the lower die radius auxiliary inspection edge 21 is parallel to the upper die radius auxiliary inspection edge 22 .

[0040] When the reference edge 11 fits with the upper end face of the rotating forging to be inspected, the lower die rounded auxiliary inspection edge 21 can fit with the side wall of the rotating forging to be inspected; when the reference edge 11 fits with the lower end face of the rotating forging to be inspected, the upper die rounded auxiliary inspection edge 21 can fit with the side wall of the rotating forging to be inspected.

[0041] With the help of the reference edge 11, the lower die radius auxiliary detection edge 21 and the vernier caliper, Figure 3 The axial defect amount and radial defect amount of the unfilled fillet of the rotating body forging shown are measured.

[0042] As a preferred solution of this embodiment, a first obtuse angle is formed between the reference edge 11 and the lower die radius auxiliary detection edge 21. The outer cylindrical die forging inclination of the closed forging is usually 2°. Therefore, the angle of the first obtuse angle is 92°. This angle is to fit with the two sides of the rotating body forging. The angle between the upper end face and the side wall of the rotating body forging is 92°.

[0043] As a preferred solution of this embodiment, a second obtuse angle is formed between the holding section 3 and the first measuring section 1, and the angle of the second obtuse angle is 110°. With the help of the holding section 3, the inspector can hold the auxiliary tool for inspection.

[0044] As a preferred solution of this embodiment, the auxiliary tool is an auxiliary tool made of manganese steel. In other embodiments, auxiliary tools made of non-metallic materials, such as auxiliary tools made of acrylic materials, may also be selected.

[0045] As a preferred solution of this embodiment, both the first measuring section 1 and the second measuring section 2 are provided with scales.

[0046] As a preferred solution of this embodiment, the scale is arranged at the edge of the first measuring section and the second measuring section.

[0047] As a preferred solution of this embodiment, the thickness of the auxiliary tool is 2 mm.

[0048] As a preferred solution of this embodiment, a hanging hole 4 is provided on the end of the gripping section 3 away from the first measuring section 1. The hanging hole 4 can be used to hang the utility model.

[0049] As a preferred solution of this embodiment, the diameter of the suspension hole 4 is 5 mm.

[0050] In summary, when measuring the incomplete fillet of the lower die corner, the utility model:

[0051] like Figure 3 As shown, first screen out forgings with unfilled defects, select a suitable vernier caliper according to the radial defect amount a and axial defect amount b to be measured; make the reference edge 11 of the auxiliary tool and the auxiliary detection edge 21 of the lower die radius fit the upper end face and side wall of the rotating body forging to be measured respectively, use the vernier caliper to complete radial measurement and axial measurement, and obtain the axial defect amount b and radial defect amount a; compare the axial defect amount b with the axial allowance l specified by machining, compare the radial defect amount a with the radial allowance l' specified by machining, and compare the axial defect amount b with the axial allowance l specified by machining. If it is judged that there is a machining allowance at the defect, the defect can be overcome by machining, and the forging does not need to be scrapped.

[0052] In summary, with the help of this auxiliary tool, the size of the outer corner defects of the forgings can be quickly determined, the detection efficiency can be effectively improved, and the detection results can be more accurate.

[0053] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0055] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An auxiliary tool for detecting incomplete fillet of a rotary forging, characterized in that: It comprises a first measuring section (1), and a second measuring section (2) and a gripping section (3) respectively connected to the first measuring section (1); The first measuring section (1) is provided with a reference edge (11); a lower die rounded corner auxiliary detection edge (21) is provided on a side of the second measuring section (2) close to the first measuring section (1); an upper die rounded corner auxiliary detection edge (22) is provided on a side of the second measuring section (2) away from the first measuring section (1); the reference edge (11), the lower die rounded corner auxiliary detection edge (21) and the upper die rounded corner auxiliary detection edge (22) are located in the same plane.

2. The auxiliary tool for detecting incomplete fillet of a rotary forging according to claim 1, characterized in that: A first obtuse angle is formed between the reference edge (11) and the lower die rounded corner auxiliary detection edge (21), and the angle of the first obtuse angle is 92°.

3. The auxiliary tool for detecting the incomplete fillet of a rotary forging according to claim 1, characterized in that: A second obtuse angle is formed between the gripping section (3) and the first measuring section (1), and the angle of the second obtuse angle is 100° to 150°.

4. The auxiliary tool for detecting incomplete fillet of a rotary forging according to claim 1, characterized in that: The auxiliary tool is made of metal.

5. The auxiliary tool for detecting the incomplete fillet of a rotary forging according to claim 1, characterized in that: The first measuring section (1) and the second measuring section (2) are both provided with scales, and the scales are provided at the edges of the first measuring section (1) and the second measuring section (2).

6. The auxiliary tool for detecting the incomplete fillet of a rotary forging according to claim 1, characterized in that: The thickness of the auxiliary tool is 1-4 mm.

7. The auxiliary tool for detecting the incomplete fillet of a rotary forging according to claim 3, characterized in that: The angle of the second obtuse angle is 110°.

8. The auxiliary tool for detecting the incomplete fillet of a rotary forging according to claim 6, characterized in that: The thickness of the auxiliary tool is 2 mm.

9. The auxiliary tool for detecting the incomplete fillet of a rotary forging according to claim 1, characterized in that: A hanging hole (4) is provided on one end of the holding section (3) away from the first measuring section (1).

10. The auxiliary tool for detecting the incomplete fillet of a rotary forging according to claim 9, characterized in that: The diameter of the hanging hole (4) is 5 mm.

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