Hot forging die capable of avoiding deviation

Abstract

The utility model relates to the technical field of hot forging dies, and discloses a hot forging die capable of avoiding deviation, which comprises a lower die and an upper die, the upper die is arranged above the lower die, a groove is arranged on the inner wall of the lower die, a boss matched with the groove is fixedly arranged at the bottom of the upper die, and the boss is arranged on the lower die. A positioning mechanism facilitating positioning of the upper die is arranged on the lower die, the positioning mechanism comprises a rotating shaft, and the rotating shaft is rotationally connected to the inner wall of the lower die. According to the hot forging die capable of avoiding deviation, through guiding of a positioning rod and limiting of a positioning concave block, the upper die and the lower die can be kept in a coincident state and move upwards in parallel, and the deviation can be avoided. And after the lower die is mounted on the forging press, the upper die is lifted upwards, so that the upper die and a hydraulic cylinder of the forging press are conveniently mounted, the mounting accuracy of the upper die and the lower die is improved, and the situation that the upper die deviates from the lower die in the mounting process, and consequently a hot-forged product is bad is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hot forging dies, in particular to a hot forging die capable of avoiding deviation. Background Art

[0002] Hot forging refers to forging performed above the metal crystallization temperature, in which pressure is applied to the blank through a forging machine or die to shape it so as to obtain the desired shape.

[0003] The overall structure of the landing gear is also forged by hot forging dies. The hot forging dies are divided into lower dies and upper dies. The lower dies are fixed, and the upper dies are used to extrude the blank downward through a forging press to form the desired shape. However, when the upper and lower dies are installed on the forging machine, it is difficult to align the positions between the two. If there is a slight deviation, it may cause product defects during use. Utility Model Content

[0004] The utility model aims to provide a hot forging die which can avoid deviation, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot forging die capable of avoiding displacement, comprising a lower die and an upper die, wherein the upper die is placed above the lower die, a groove is provided on the inner wall of the lower die, a boss matching the groove is fixedly installed on the bottom of the upper die, when the lower die is forged downward by a forging machine, the boss matches the groove, so that the lower die can be prevented from being deflected during the forging process, and a positioning mechanism for conveniently positioning the upper die is provided on the lower die. By providing the positioning mechanism, the displacement of the upper die and the lower die can be avoided during the installation process, and the positioning mechanism comprises:

[0006] A rotating shaft, the rotating shaft is rotatably connected to the inner wall of the lower die, and the rotating shaft passes through the lower die, a worm gear is fixedly installed on one end of the rotating shaft, and a positioning rod is fixedly installed on the other end of the rotating shaft;

[0007] A positioning concave block, which is fixedly mounted on the outer wall of the upper die. The upper die and the lower die can be precisely positioned together by arranging the positioning concave block in conjunction with the positioning rod;

[0008] A worm, one end of which is rotatably connected to the inner wall of the lower die, and the other end of which passes through the lower die and is fixedly provided with a knob, the worm is meshed with a worm wheel, and by providing a worm that cooperates with two sets of worm wheels that mesh with the worm, the two sets of rotating shafts can be driven to rotate synchronously in opposite directions.

[0009] Preferably, an auxiliary mechanism is provided inside the positioning rod, and the auxiliary mechanism comprises a threaded rod, one end of the threaded rod is rotatably connected to the inner wall of the positioning rod, and the other end of the threaded rod passes through the positioning rod and is fixedly mounted with a handle.

[0010] Preferably, the inner wall of the positioning rod is slidably connected to a limiting plate, and the upper mold can be limited by setting the limiting plate.

[0011] Preferably, the inner wall of the limiting plate is threadedly connected to the outer wall of the threaded rod.

[0012] Preferably, the threaded rod is rotatably connected to the penetration point of the positioning rod.

[0013] Preferably, the worm is rotatably connected to the through-hole of the lower die.

[0014] Compared with the prior art, the utility model provides a hot forging die that can avoid offset, and has the following beneficial effects:

[0015] 1. The hot forging die that can avoid offset can keep the upper die in an overlapping state with the lower die and move upward in parallel through the guidance of the positioning rod and the limit of the positioning concave block. After the lower die is installed on the forging machine, the upper die can be lifted upward, which is convenient for installing the upper die and the hydraulic cylinder of the forging machine, improving the accuracy of the installation of the upper die and the lower die, and avoiding the offset of the upper die and the lower die during the installation process, resulting in defective hot forged products.

[0016] 2. The hot forging die that can avoid displacement can drive the limit plate threadedly connected to the threaded rod to move up and down on the inner wall of the positioning rod by turning the handle. When the upper die moves upward to a suitable height using the positioning concave block and the positioning rod, the limit plate is moved to the bottom of the upper die. At this time, the position of the upper die can be fixed using the limit plate, which is convenient for the staff to install the upper die inside the forging machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the positioning state of the lower die to the upper die of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the structure when viewed from above;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the lower mold of the utility model when viewed from above;

[0021] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged structure at point A;

[0022] Figure 6 For this utility model Figure 4 Schematic diagram of the enlarged structure at B.

[0023] In the figure: 1. lower die; 2. upper die; 3. groove; 4. boss; 5. positioning mechanism; 51. rotating shaft; 52. positioning recess; 53. worm; 54. positioning rod; 55. worm wheel; 56. knob; 6. auxiliary mechanism; 61. threaded rod; 62. handle; 63. limit plate. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a hot forging die that can avoid offset, comprising a lower die 1 and an upper die 2, the upper die 2 is placed above the lower die 1, the inner wall of the lower die 1 is provided with a groove 3, and the bottom of the upper die 2 is fixedly installed with a boss 4 matching the groove 3, the boss 4 on the upper die 2 is aligned with the groove 3 on the lower die 1, and the upper die 2 is buckled on the top of the lower die 1, at this time, the upper die 2 and the lower die 1 are in a completely overlapping state, and a positioning mechanism 5 for convenient positioning of the upper die 2 is provided on the lower die 1, and the upper die 2 and the lower die 1 can be positioned by setting the positioning mechanism 5 to avoid offset of the upper die 2 and the lower die 1 during installation.

[0025] The positioning mechanism 5 comprises a rotating shaft 51, a positioning recessed block 52, a worm 53, a positioning rod 54, a worm wheel 55, and a knob 56. The rotating shaft 51 is rotatably connected to the inner wall of the lower mold 1, and the rotating shaft 51 passes through the lower mold 1. The worm wheel 55 is fixedly installed at one end of the rotating shaft 51, and the positioning rod 54 is fixedly installed at the other end of the rotating shaft 51. The two groups of rotating shafts 51 drive the two groups of positioning rods 54 to rotate synchronously in opposite directions, and make the two groups of positioning rods 54 enter the interior of the two groups of positioning recessed blocks 52 respectively, so that the outer wall of the positioning rod 54 is tightly fitted with the inner wall of the positioning recessed block 52. The positioning recessed block 52 is fixedly installed on the outer wall of the upper mold 2. When the outer wall of the positioning rod 54 is aligned with the inner wall of the positioning recessed block 52, the positioning rod 54 is fixedly mounted on the outer wall of the upper mold 2. After they are tightly fitted, the upper die 2 is lifted upward, and under the guidance of the positioning rod 54, the positioning recess 52 is cooperated to make the upper die 2 keep overlapping with the lower die 1 and move upward in parallel, so as to facilitate the installation of the upper die 2 and the hydraulic cylinder of the forging machine and improve the accuracy of the installation of the upper die 2 and the lower die 1. One end of the worm 53 is rotatably connected to the inner wall of the lower die 1, and the other end of the worm 53 passes through the lower die 1 and is fixedly installed with a knob 56, and the worm 53 is rotatably connected to the penetration point of the lower die 1, and the worm 53 is meshed with the worm wheel 55. The worm 53 is rotated by the knob 56, and at the same time, the two sets of worm wheels 55 meshing with it can drive the two sets of rotating shafts 51 to rotate synchronously in opposite directions.

[0026] The interior of the positioning rod 54 is provided with an auxiliary mechanism 6, by which the position of the upper die 2 can be fixed, so that the staff can conveniently install the upper die 2 inside the forging machine. The auxiliary mechanism 6 includes a threaded rod 61, a handle 62, and a limit plate 63; one end of the threaded rod 61 is rotatably connected to the inner wall of the positioning rod 54, and the other end of the threaded rod 61 passes through the positioning rod 54 and is fixedly installed with a handle 62, and the threaded rod 61 is rotatably connected to the penetration of the positioning rod 54, and the inner wall of the positioning rod 54 is slidably connected to the limit plate 63. When the upper die 2 is used After the positioning block 52 and the positioning rod 54 are moved upward to a suitable height, the limit plate 63 is moved to the bottom of the upper die 2 so that the upper surface of the limit plate 63 is in contact with the bottom of the upper die 2. At this time, the limit plate 63 can be used to fix the position of the upper die 2, which is convenient for the staff to install the upper die 2 inside the forging machine. The inner wall of the limit plate 63 is threadedly connected to the outer wall of the threaded rod 61. The threaded rod 61 is rotated by the handle 62, and the rotation of the threaded rod 61 can drive the limit plate 63 threadedly connected to it to move up and down on the inner wall of the positioning rod 54.

[0027] Working principle: After the lower die 1 is installed on the forging machine, the boss 4 on the upper die 2 is aligned with the groove 3 on the lower die 1, and the upper die 2 is buckled on the top of the lower die 1, so that the upper die 2 and the lower die 1 are in a completely overlapping state, and then the worm 53 is rotated forward by the knob 56, and the two groups of worm gears 55 engaged therewith can drive the two groups of rotating shafts 51 to rotate synchronously in opposite directions, so that the two groups of rotating shafts 51 drive the two groups of positioning rods 54 to rotate synchronously in opposite directions, and make the two groups of positioning rods 54 enter the interior of the two groups of positioning recesses 52 respectively, so that the outer wall of the positioning rod 54 is tightly fitted with the inner wall of the positioning recess 52. At this time, under the cooperation of the two groups of positioning rods 54 and the two groups of positioning recesses 52, the lower die 1 and the upper die 2 are in a completely overlapping state. At this time, the upper die 2 is lifted upward again, and under the guidance of the positioning rod 54, the positioning recess 52 is cooperated to make the upper die 2 keep overlapping with the lower die 1 and move upward in parallel, so as to facilitate the installation of the upper die 2 and the hydraulic cylinder of the forging machine, improve the accuracy of the installation of the upper die 2 and the lower die 1, and avoid the upper die 2 from being offset from the lower die 1 during the installation process, resulting in defective hot forged products. After the installation of the upper die 2 is completed, the worm 53 is reversed by the knob 56, and at the same time, the two sets of worm gears 55 and the two sets of rotating shafts 51 can drive the two sets of positioning rods 54 to rotate synchronously in opposite directions, so that the positioning rods 54 are moved out of the positioning recess 52 and rotated to keep it horizontal with the lower die 1, and the positioning rods 54 are stored to avoid affecting the use of the upper die 2 and the lower die 1.

[0028] When the upper die 2 is moved upward to a suitable height using the positioning recess 52 and the positioning rod 54, the threaded rod 61 is rotated by means of the handle 62. The rotation of the threaded rod 61 can drive the limit plate 63 threadably connected thereto to move upward on the inner wall of the positioning rod 54 until the upper surface of the limit plate 63 fits with the bottom of the upper die 2. At this time, the limit plate 63 can be used to fix the position of the upper die 2, making it convenient for the staff to install the upper die 2 inside the forging machine.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A hot forging die capable of avoiding deflection, comprising a lower die (1) and an upper die (2), wherein the upper die (2) is placed above the lower die (1), and characterized in that: The inner wall of the lower mold (1) is provided with a groove (3), the bottom of the upper mold (2) is fixedly provided with a boss (4) matching the groove (3), and the lower mold (1) is provided with a positioning mechanism (5) for conveniently positioning the upper mold (2), and the positioning mechanism (5) comprises: A rotating shaft (51), the rotating shaft (51) is rotatably connected to the inner wall of the lower mold (1), and the rotating shaft (51) passes through the lower mold (1), a worm gear (55) is fixedly mounted on one end of the rotating shaft (51), and a positioning rod (54) is fixedly mounted on the other end of the rotating shaft (51); A positioning recessed block (52), wherein the positioning recessed block (52) is fixedly mounted on the outer wall of the upper mold (2); A worm (53), one end of which is rotatably connected to the inner wall of the lower die (1), and the other end of which passes through the lower die (1) and is fixedly provided with a knob (56), and the worm (53) is meshed with a worm wheel (55).

2. A hot forging die capable of avoiding deviation according to claim 1, characterized in that: An auxiliary mechanism (6) is arranged inside the positioning rod (54), and the auxiliary mechanism (6) comprises a threaded rod (61), one end of the threaded rod (61) is rotatably connected to the inner wall of the positioning rod (54), and the other end of the threaded rod (61) passes through the positioning rod (54) and is fixedly mounted with a handle (62).

3. A hot forging die capable of avoiding deviation according to claim 1, characterized in that: The inner wall of the positioning rod (54) is slidably connected to a limiting plate (63).

4. A hot forging die capable of avoiding deviation according to claim 3, characterized in that: The inner wall of the limiting plate (63) is threadedly connected to the outer wall of the threaded rod (61).

5. The hot forging die capable of avoiding deviation according to claim 2, characterized in that: The threaded rod (61) is rotatably connected to the penetration point of the positioning rod (54).

6. The hot forging die capable of avoiding deviation according to claim 1, characterized in that: The worm (53) is rotationally connected to the penetration point of the lower mold (1).

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