A mandrel forging die

Abstract

The utility model relates to the technical field of mandrel forge piece, and disclose a mandrel forge piece mould, including lower mould and upper mould, the upper mould places lower mould top, the lower mould four corners with upper mould between all be provided with positioning mechanism, the lower mould top both sides all are fixed with side upper board, two the side upper board below all place have side lower board, and side lower board below fixed have support leg, the lower mould is separated and is equipped with a plurality of die holes in interval, and a plurality of die holes are provided with the ejection mechanism in. The utility model discloses positioning mechanism can be positioned to the upper mould, to this can reduce the deviation between the upper mould and the lower mould, through the ejection mechanism can eject the mandrel formed in the die hole, to this facilitates the mandrel to carry out stripping.

Description

Technical Field

[0001] This utility model relates to the field of mandrel forging technology, and more specifically, to a mandrel forging mold. Background Technology

[0002] Mandrel forgings are key components in mechanical transmission systems, and their forging quality directly affects the overall machine's operational accuracy and service life. Existing mandrel forging dies have insufficient positioning accuracy in the upper and lower cavities, making it easy for the billet to shift during hot forging, resulting in defects such as eccentricity and inconsistent step dimensions in the forgings. Moreover, it is inconvenient to remove the mandrel from the die hole when needed. Therefore, we have designed a new mandrel forging die. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a mandrel forging mold to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mandrel forging mold, comprising a lower mold and an upper mold, wherein the upper mold is placed above the lower mold, and positioning mechanisms are provided at the four corners of the lower mold and between the lower mold and the upper mold, and side upper plates are fixed on both sides above the lower mold, and side lower plates are placed below the two side upper plates, and support feet are fixed below the side lower plates, and multiple mold holes are spaced apart inside the lower mold, and ejection mechanisms are provided in the multiple mold holes.

[0005] As a preferred technical solution of this utility model, handles are fixed on both sides of the upper mold.

[0006] As a preferred technical solution of this utility model, the positioning mechanism includes a lower plate and an upper plate. The lower plate is fixed at the four corners above the lower mold, and the upper plate is fixed at the four corners below the upper mold. The upper plate is provided with sliding holes, and a sliding rod is fixed above the lower plate. One end of the sliding rod passes through the sliding hole and extends upward.

[0007] As a preferred technical solution of this utility model, the upper side plate is provided with insertion holes on both sides, and the lower side plate is fixed with insertion rods on both sides above, with one end of the insertion rod passing through the insertion hole and extending upward.

[0008] As a preferred technical solution of this utility model, the ejection mechanism includes multiple sliding holes and a base plate. The multiple sliding holes are respectively opened at the bottom of the mold hole. The base plate is set directly below the lower mold. Multiple support rods are fixed above the base plate. One end of each of the multiple support rods passes through the multiple sliding holes and is inserted into the mold hole. A top plate is fixed to one end of each support rod. A sealing gasket is fixed between the side wall of the sliding hole and the support rod. Telescopic mechanisms are provided between the two sides of the base plate and the support feet.

[0009] As a preferred technical solution of this utility model, a motor is fixedly installed on the side wall of one of the support legs, the output shaft of the motor is connected to a rotating shaft, one end of the rotating shaft passes through one of the support legs and is rotatably connected to the side wall of the other support leg, and the rotating shaft and the support leg are rotatably connected by a bearing, and a convex shape is fixed on the rotating shaft.

[0010] As a preferred technical solution of this utility model, the telescopic mechanism includes a slide groove and a slide plate. The slide groove is formed on the side wall of the support leg, and the slide plate is fixed to the side wall of the base plate. The slide plate is slidably disposed in the slide groove. A plurality of side slide rods are fixed on the side wall of the slide groove. One end of each of the plurality of side slide rods passes through the slide plate and is fixed to the other side wall of the slide groove. A spring is sleeved on each of the plurality of side slide rods. One end of the spring is fixed to the side wall of the slide groove, and the other end of the spring is fixed to the slide plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses a positioning mechanism to limit the upper mold, thereby reducing the offset between the upper and lower molds. The ejection mechanism can eject the mandrel formed in the mold hole, thus facilitating the demolding of the mandrel. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of a mandrel forging mold according to the present invention; Figure 2 This is a schematic diagram of the main structure of a mandrel forging mold according to the present invention; Figure 3 This is a side view of a mandrel forging mold according to the present invention.

[0014] In the diagram: 1. Lower mold; 2. Upper mold; 3. Lower plate; 4. Upper plate; 5. Slide rod; 6. Handle; 7. Upper side plate; 8. Lower side plate; 9. Support leg; 10. Insert rod; 11. Motor; 12. Base plate; 13. Support rod; 14. Slide plate; 15. Slide groove; 16. Side slide rod; 17. Spring; 18. Convex wheel; 19. Rotating shaft; 20. Top plate; 21. Mold hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 3 As shown, this utility model provides a mandrel forging mold, including a lower mold 1 and an upper mold 2. The upper mold 2 is placed above the lower mold 1. A handle 6 is fixed on both sides of the upper mold 2. A positioning mechanism is provided between the four corners of the lower mold 1 and the upper mold 2. The positioning mechanism can limit the upper mold 2. A side upper plate 7 is fixed on both sides of the upper mold 1. A side lower plate 8 is placed below the two side upper plates 7. Insertion holes are opened on both sides of the side upper plate 7. Insert rods 10 are fixed on both sides of the upper side lower plate 8. One end of the insert rod 10 passes through the insertion hole and extends upward. The insertion rod 10 passing through the insertion hole can limit the side upper plate 7 horizontally. A support foot 9 is fixed below the side lower plate 8. Multiple mold holes 21 are spaced apart in the lower mold 1. An ejection mechanism is provided in the multiple mold holes 21. The ejection mechanism can eject the mandrel formed in the mold hole 21.

[0017] The positioning mechanism includes a lower plate 3 and an upper plate 4. The lower plate 3 is fixed at the four corners above the lower mold 1, and the upper plate 4 is fixed at the four corners below the upper mold 2. The upper plate 4 has sliding holes, and a sliding rod 5 is fixed above the lower plate 3. One end of the sliding rod 5 passes through the sliding hole and extends upward. By sliding the sliding rod 5 in the sliding hole, the upper mold 2 can be limited, thereby reducing the offset between the upper mold 2 and the lower mold 1.

[0018] The ejection mechanism includes multiple sliding holes and a base plate 12. The multiple sliding holes are respectively opened at the bottom of the mold hole 21. The base plate 12 is set directly below the lower mold 1. Multiple support rods 13 are fixed on the top of the base plate 12. One end of each support rod 13 passes through the multiple sliding holes and is inserted into the mold hole 21. A top plate 20 is fixed to one end of each support rod 13. A sealing gasket is fixed between the side wall of the sliding hole and the support rod 13. Telescopic mechanisms are provided between the two sides of the base plate 12 and the support legs 9.

[0019] A motor 11 is fixedly installed on the side wall of one of the support legs 9. The output shaft of the motor 11 is connected to a rotating shaft 19. One end of the rotating shaft 19 passes through one of the support legs 9 and is rotatably connected to the side wall of the other support leg 9. The rotating shaft 19 and the support leg 9 are rotatably connected by a bearing. A convex wheel 18 is fixed on the rotating shaft 19. Starting the motor 11 can drive the convex wheel 18 to rotate. The rotation of the convex wheel 18 can drive the base plate 12 to move upward. Then, the top plate 20 moves upward in the mold hole 21, which can lift the mandrel in the mold hole 21, thereby facilitating demolding.

[0020] The telescopic mechanism includes a slide groove 15 and a slide plate 14. The slide groove 15 is opened on the side wall of the support leg 9, and the slide plate 14 is fixed to the side wall of the base plate 12. The slide plate 14 is slidably arranged in the slide groove 15. Multiple side slide rods 16 are fixed on the side wall of the slide groove 15. One end of each side slide rod 16 passes through the slide plate 14 and is fixed to the other side wall of the slide groove 15. Each side slide rod 16 is fitted with a spring 17. One end of the spring 17 is fixed to the side wall of the slide groove 15, and the other end of the spring 17 is fixed to the slide plate 14. The telescopic mechanism enables the base plate 12 to move up and down more effectively.

[0021] The working principle and usage process of this utility model are as follows: The positioning mechanism can limit the upper mold 2, thereby reducing the offset between the upper mold 2 and the lower mold 1. The starting motor 11 can drive the convex wheel 18 to rotate. The rotation of the convex wheel 18 can drive the base plate 12 to move upward. Then, the top plate 20 moves upward in the mold hole 21, which can lift the mandrel in the mold hole 21, thereby facilitating the demolding of the mandrel.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mandrel forging die, comprising a lower die (1) and an upper die (2), characterized in that: The upper mold (2) is placed above the lower mold (1). Positioning mechanisms are provided between the four corners of the lower mold (1) and the upper mold (2). Side upper plates (7) are fixed on both sides of the lower mold (1). Side lower plates (8) are placed below the two side upper plates (7). Support legs (9) are fixed below the side lower plates (8). Multiple mold holes (21) are spaced apart inside the lower mold (1). Ejection mechanisms are provided in the multiple mold holes (21).

2. The mandrel forging mold according to claim 1, characterized in that: Both sides of the upper mold (2) are fixed with handles (6).

3. A mandrel forging mold according to claim 1, characterized in that: The positioning mechanism includes a lower plate (3) and an upper plate (4). The lower plate (3) is fixed at the four corners above the lower mold (1), and the upper plate (4) is fixed at the four corners below the upper mold (2). A sliding hole is provided on the upper plate (4). A sliding rod (5) is fixed above the lower plate (3), and one end of the sliding rod (5) passes through the sliding hole and extends upward.

4. A mandrel forging mold according to claim 1, characterized in that: The upper side plate (7) has insertion holes on both sides, and the lower side plate (8) has insertion rods (10) fixed on both sides above it, with one end of the insertion rod (10) passing through the insertion hole and extending upward.

5. A mandrel forging mold according to claim 1, characterized in that: The ejection mechanism includes multiple sliding holes and a base plate (12). The multiple sliding holes are respectively opened at the bottom of the mold hole (21). The base plate (12) is set directly below the lower mold (1). Multiple support rods (13) are fixed above the base plate (12). One end of each of the multiple support rods (13) passes through the multiple sliding holes and is inserted into the mold hole (21). A top plate (20) is fixed to one end of each support rod (13). A sealing gasket is fixed between the side wall of the sliding hole and the support rod (13). Telescopic mechanisms are provided between the two sides of the base plate (12) and the support feet (9).

6. A mandrel forging mold according to claim 5, characterized in that: A motor (11) is fixedly installed on the side wall of one of the support legs (9). The output shaft of the motor (11) is connected to a rotating shaft (19). One end of the rotating shaft (19) passes through one of the support legs (9) and is rotatably connected to the side wall of the other support leg (9). The rotating shaft (19) and the support leg (9) are rotatably connected by a bearing. A convex wheel (18) is fixed on the rotating shaft (19).

7. A mandrel forging mold according to claim 5, characterized in that: The telescopic mechanism includes a slide groove (15) and a slide plate (14). The slide groove (15) is opened on the side wall of the support leg (9). The slide plate (14) is fixed on the side wall of the base plate (12) and slides in the slide groove (15). Multiple side slide rods (16) are fixed on the side wall of the slide groove (15). One end of each side slide rod (16) passes through the slide plate (14) and is fixed on the other side wall of the slide groove (15). Each side slide rod (16) is fitted with a spring (17). One end of the spring (17) is fixed on the side wall of the slide groove (15), and the other end of the spring (17) is fixed on the slide plate (14).

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