A cast-in tube for full-mold casting of sheet metal stamping dies

Abstract

A cast-in tube for full-mold casting of a sheet metal stamping die belongs to the field of casting, and includes a cast-in tube body, and a first groove, a second groove, a third groove, a fourth groove, a first annular groove and a second annular groove arranged thereon, wherein the positions of the first groove and the second groove on the cast-in tube body correspond to the middle part of the left hanging ear hole of the model body; the positions of the third groove and the fourth groove on the cast-in tube body correspond to the middle part of the right hanging ear hole of the model body; the positions of the first annular groove and the second annular groove on the cast-in tube body correspond to the inner wall edges of the left hanging ear hole and the right hanging ear hole of the model body, respectively. The cast-in tube provided by the present invention not only retains the advantages of the original cast-in tube body in preventing it from falling off and being easy to clean up later, but also has a simple manufacturing method and prevents it from rotating inside the hanging ear hole, which easily creates the illusion of its looseness, thereby improving the quality of the casting and avoiding economic losses caused by the scrapping of the casting.

Description

Technical Field

[0001] The invention belongs to the field of casting, and in particular relates to a cast-in tube for full-mold casting of a sheet metal stamping die. Background Art

[0002] In the production process of automobile sheet metal stamping dies, in order to facilitate lifting and turning, ear holes are set at the four corners of the automobile sheet metal stamping dies. An integrated cast-in tube is embedded in the ear hole to cooperate with the lifting rod for lifting and turning. Because this part is the lifting part involving safety, the requirements for this part are particularly strict. The existing integrated cast-in tube is embedded as a standard part, and the part in the model body is an annular groove. Although the annular groove can prevent the cast-in tube from falling off during use and avoid accidents, it cannot prevent it from rotating inside the ear hole, which easily creates the illusion of looseness, causing the casting to be scrapped and causing economic losses. Summary of the invention

[0003] The purpose of the invention is to provide a cast-in tube for full-mold casting of a sheet metal stamping die, which is simple to process, improves the quality of the lifting lug hole, and avoids economic losses caused by scrapping of castings.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a cast-in tube for full-mold casting of a sheet metal stamping die, characterized in that it includes: a cast-in tube body, on which a first groove, a second groove, a third groove, a fourth groove, a first annular groove and a second annular groove are arranged, the first groove and the second groove are mirror-imaged with the axial mid-vertical plane of the cast-in tube body as a symmetry plane, and the positions of the first groove and the second groove on the cast-in tube body correspond to the middle part of the left ear hole of the model body; the third groove and the fourth groove are mirror-imaged with the axial mid-vertical plane of the cast-in tube body as a symmetry plane, and the positions of the third groove and the fourth groove on the cast-in tube body correspond to the middle part of the right ear hole of the model body; the position of the first annular groove on the cast-in tube body corresponds to the edge of the inner wall of the left ear hole of the model body; the position of the second annular groove on the cast-in tube body corresponds to the edge of the inner wall of the right ear hole of the model body.

[0005] The cast-in pipe body is a steel pipe.

[0006] Furthermore, the first groove, the second groove, the third groove and the fourth groove are square grooves.

[0007] Furthermore, the minimum distance between the bottom surfaces of the first groove, the second groove, the third groove and the fourth groove and the inner wall of the cast pipe body is 2 mm.

[0008] Furthermore, the bottom surfaces of the first annular groove and the second annular groove are 1 mm away from the inner wall of the cast pipe body.

[0009] Through the above-mentioned design scheme, the present invention can bring the following beneficial effects: the present invention provides a cast-in tube for full-mold casting of sheet metal stamping molds. By improving the structure of the cast-in tube body, not only the advantages of the original cast-in tube body in preventing it from falling off and being easy to clean up later are retained, but also the manufacturing method is simple, and it is prevented from rotating inside the ear hole, which easily creates the illusion of looseness, thereby improving the quality of the casting and avoiding economic losses caused by the scrapping of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a partial schematic diagram of a sheet metal stamping die in the prior art;

[0012] Figure 2 A three-dimensional diagram of a cast-in tube for full-mold casting of a sheet metal stamping die according to the present invention;

[0013] Figure 3 It is a front view of a cast-in tube for full-mold casting of a sheet metal stamping die according to the present invention;

[0014] Figure 4 for Figure 3 Sectional view of AA.

[0015] In the figure: 1- cast-in pipe body; 2- first groove; 3- second groove; 4- third groove; 5- fourth groove; 6- first annular groove; 7- second annular groove; 101- model body; 102- left ear hole; 103- right ear hole. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described through implementation methods with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Figure 1 An enlarged view of the mating area between the existing sheet metal stamping die and the cast-in tube is shown.

[0018] like Figure 2 , Figure 3 and Figure 4As shown, a cast-in tube for full-mold casting of a sheet metal stamping die of the present invention comprises a cast-in tube body 1, on which a first groove 2, a second groove 3, a third groove 4, a fourth groove 5, a first annular groove 6 and a second annular groove 7 are provided.

[0019] The steel pipe of the blank is processed into a cast-in pipe body 1 .

[0020] Specifically, the first groove 2 , the second groove 3 , the third groove 4 and the fourth groove 5 are processed into square grooves whose bottom surfaces have a minimum distance of 2 mm from the inner wall of the cast pipe body 1 .

[0021] Specifically, the first groove 2 and the second groove 3 are located in the middle of the left ear hole 102 of the model body 101, that is, the positions of the first groove 2 and the second groove 3 on the cast pipe body 1 correspond to the middle of the left ear hole 102 of the model body 101, and the first groove 2 and the second groove 3 are mirror-set with the axial mid-vertical plane of the cast pipe body 1 as the symmetry plane.

[0022] Specifically, the third groove 4 and the fourth groove 5 are located in the middle of the right ear hole 103 of the model body 101, that is, the positions of the third groove 4 and the fourth groove 5 on the cast pipe body 1 correspond to the middle of the right ear hole 103 of the model body 101; and the third groove 4 and the fourth groove 5 are mirror-set with the axial mid-vertical plane of the cast pipe body 1 as the symmetry plane.

[0023] Specifically, the first annular groove 6 is located at the inner wall edge of the left ear hole 102, that is, the position of the first annular groove 6 on the cast pipe body 1 corresponds to the inner wall edge of the left ear hole 102 of the model body 101. The bottom surface of the first annular groove 6 is 1 mm away from the inner wall of the cast pipe body 1, which is easy to clean later.

[0024] Specifically, the second annular groove 7 is located at the inner wall edge of the right ear hole 103, that is, the position of the second annular groove 7 on the cast tube body 1 corresponds to the inner wall edge of the right ear hole 103 of the model body 101, and the bottom surface of the second annular groove 7 is 1 mm away from the inner wall of the cast tube body 1, which is easy to clean later.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, during use, the cast-in tube for full-mold casting of the sheet metal stamping mold provided by the present invention is first placed in the ear of the model body 101, and the two ends of the cast-in tube for full-mold casting of the sheet metal stamping mold are respectively aligned with the outer wall edges of the left ear hole 102 and the right ear hole 103, and then the casting process is performed. During the pouring process, molten iron will replace the original model body 101, and the first groove 2, the second groove 3, the third groove 4, and the fourth groove 5 will be filled with molten iron, and the first groove 2, the second groove 3, the third groove 4, and the fourth groove 5 are processed into a minimum distance of 2 mm from the bottom surface to the inner wall of the cast-in tube body 1, which can neither be penetrated by molten iron due to thin wall, nor fall off or rotate due to insufficient groove depth, so that the cast-in tube is finally connected to the model body 101 as a whole, and the part between the first annular groove 6 and the second annular groove 7 is knocked off during later cleaning.

[0026] The above specific implementation is not limited to the above-mentioned dimensions and can be processed separately according to specific standards. The processed casting tube for full-mold casting of a sheet metal stamping die of the present invention is placed into the ear hole of the model body 101, and after being firmly installed, the subsequent casting process is carried out.

Claims

1. A cast-in tube for full-mold casting of sheet metal stamping dies, characterized in that: include: A cast-in pipe body (1), wherein the cast-in pipe body (1) is provided with a first groove (2), a second groove (3), a third groove (4), a fourth groove (5), a first annular groove (6) and a second annular groove (7), wherein the first groove (2) and the second groove (3) are arranged in a mirror image with the axial mid-vertical plane of the cast-in pipe body (1) as a symmetric plane, and the positions of the first groove (2) and the second groove (3) on the cast-in pipe body (1) correspond to the middle part of the left hanging ear hole (102) of the model body (101); the third groove (4) and the fourth groove (5) The axial mid-vertical plane of the cast-in pipe body (1) is used as a symmetry plane and is arranged in a mirror image, and the positions of the third groove (4) and the fourth groove (5) on the cast-in pipe body (1) correspond to the middle part of the right ear hole (103) of the model body (101); the position of the first annular groove (6) on the cast-in pipe body (1) corresponds to the edge of the inner wall of the left ear hole (102) of the model body (101); and the position of the second annular groove (7) on the cast-in pipe body (1) corresponds to the edge of the inner wall of the right ear hole (103) of the model body (101).

2. The cast-in tube for full-mold casting of sheet metal stamping dies according to claim 1, characterized in that: The cast-in pipe body (1) is a steel pipe.

3. The cast-in tube for full-mold casting of sheet metal stamping dies according to claim 1, characterized in that: The first groove (2), the second groove (3), the third groove (4) and the fourth groove (5) are square grooves.

4. The cast-in tube for full-mold casting of sheet metal stamping dies according to claim 3, characterized in that: The minimum distance between the bottom surfaces of the first groove (2), the second groove (3), the third groove (4) and the fourth groove (5) and the inner wall of the cast pipe body (1) is 2 mm.

5. The cast-in tube for full-mold casting of sheet metal stamping dies according to claim 1, characterized in that: The bottom surfaces of the first annular groove (6) and the second annular groove (7) are 1 mm away from the inner wall of the cast pipe body (1).

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