Automobile center shaft press forging die

Abstract

The utility model relates to the technical field of forging dies, and discloses an automobile center shaft forging die which comprises a base, a first fixing seat and a second fixing seat are fixed to the two ends of the top of the base respectively, a first pressing block and a second pressing block are arranged at the tops of the first fixing seat and the second fixing seat respectively, and connecting plates are fixed to the tops of the first pressing block and the second pressing block. A forging and pressing block is further fixed to the top of the connecting plate and arranged between the first pressing block and the second pressing block, a third fixing base is arranged at the bottom of the forging and pressing block and arranged between the first fixing base and the second fixing base, a heating piece is fixed to the inner wall of the bottom of the forging and pressing block, and a connecting hole is formed in the side wall of the heating piece. The utility model has the following advantages and effects: the side wall of the heating sheet fixed at the bottom of the forging and pressing block is provided with the connecting hole which can be connected with a heating device to locally heat the part of the steel pipe to be forged and pressed, so that the part is softened, the bending work can be finished with smaller force, and the forging and pressing can be performed by using a forging press with lower section number; the forging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forging dies, in particular to a forging die for an automobile center axle. Background Art

[0002] The middle axle is a rotating part installed in the five-way bracket of the frame to connect the left and right cranks. The middle axle is usually made of thick steel pipe and bent near the middle. The bending is usually formed by forging.

[0003] A Chinese patent with authorization announcement number CN204817865U discloses a forging die, including a punch, a die, a die sleeve and a die pad. The punch includes a punch body, an outer edge of which extends downward to form a cover sleeve, the die pad is placed in the die, and the die sleeve is disposed outside the die. The cover sleeve matches the die sleeve, and the cover sleeve is provided with an exhaust hole. The die and the die sleeve are both provided with drainage holes that can be connected to each other.

[0004] However, the above-mentioned forging die has the following disadvantages: the method adopted is to put the steel pipe into the lower die cavity, cover the upper die and forge it on the forging press, purely using external force to deform the steel pipe. This method requires a large tonnage forging press with high energy consumption and low efficiency. Utility Model Content

[0005] The utility model aims to provide a die forging a center axle of an automobile, which can be used for forging by a low-tonnage forging press to improve efficiency.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a car center axle forging die, including a base, a fixing seat 1 and a fixing seat 2 are respectively fixed at two ends of the top of the base, a clamping block 1 and a clamping block 2 are respectively arranged on the top of the fixing seat 1 and the fixing seat 2, a connecting plate is fixed on the top of the clamping block 1 and the clamping block 2, a forging block is also fixed on the top of the connecting plate, the forging block is arranged between the clamping block 1 and the clamping block 2, a fixing seat 3 is arranged at the bottom of the forging block, the fixing seat 3 is arranged between the fixing seat 1 and the fixing seat 2, a heating plate is fixed to the inner wall of the bottom of the forging block, and a connecting hole is opened on the side wall of the heating plate.

[0007] By adopting the above technical scheme, in actual operation, firstly, the two ends of the steel plate to be forged are placed in cavity one and cavity two, and the cavities at the left and right ends support the steel plate to be forged to prevent the middle cavity three from being subjected to greater force during forging and causing the two ends of the steel pipe to be tilted. At the same time, since the length of the steel pipe to be forged before bending will exceed the mold, a limit block is set on the side wall of the fixed seat one so that the length of the steel pipe to be forged is just right when placed in cavity three. A connecting hole is set on the side wall of the heating plate fixed at the bottom of the forging block, which can be connected to a heating device. After the steel pipe to be forged is placed, the heating plate can be connected to the heating device to locally heat the part of the steel pipe to be forged that needs to be bent, so that its properties become softer and the bending work can be completed with less force. By heating, a forging machine with a lower number of sections can be used for forging, thereby improving the forging efficiency.

[0008] The utility model is further configured as follows: a first cavity is provided between the first fixing seat and the pressing block, a second cavity is provided between the second fixing seat and the second pressing block, and a third cavity is provided between the forging block and the third fixing seat.

[0009] By adopting the above technical solution, cavity one, cavity two and cavity three are set in the press forging die, which is convenient for supporting the steel plate to be forged and avoiding that the middle cavity three is subjected to a large force during forging, causing the two ends of the steel pipe to curl up.

[0010] The utility model is further configured as follows: a limiting block is fixed on a side wall of one end of the fixing seat 1 away from the fixing seat 3.

[0011] By adopting the above technical solution, since the length of the steel pipe to be forged before bending will exceed the mold, a limit block is set on the side wall of the fixing seat one so that the length of the steel pipe to be forged can be just right when placed in the cavity three.

[0012] The utility model is further configured as follows: a depression is provided at the center of the forging block, and a protrusion is provided at the center of the fixing seat.

[0013] The utility model is further configured as follows: fixing bolts are fixed between the clamping block 1, the clamping block 2, the forging block and the connecting plate, and connecting bolts are fixed between the bottom of the fixing seat 3 and the base.

[0014] By adopting the above technical solution, fixing bolts are fixed between the clamping block 1, the clamping block 2, the forging block and the connecting plate, and connecting bolts are fixed between the bottom of the fixing seat 3 and the base. The fixing bolts and connecting bolts make the clamping block 1, the clamping block 2, the forging block, the fixing seat 3 and the connecting plate and the base more firmly fixed.

[0015] The utility model is further configured as follows: a clamping block is fixed between the top of the forging block and the connecting plate, and a connecting block is fixed between the fixing seat three and the base.

[0016] By adopting the above technical solution, a clamping block is fixed between the top of the forging block and the connecting plate, and a connecting block is fixed between the fixing seat three and the base. The arrangement of the clamping block and the connecting block makes the fixation of the forging block and the fixing seat three more stable.

[0017] The beneficial effects of the utility model are as follows: cavity one, cavity two and cavity three are arranged in the press forging die, which is convenient for supporting the steel plate to be forged, and avoids that the middle cavity three is subjected to a large force during forging and causes the two ends of the steel pipe to be tilted; since the length of the steel pipe to be forged before bending will exceed the die, a limit block is arranged on the side wall of the fixed seat one, so that the length of the steel pipe to be forged placed in cavity three is just right, and the adaptability is stronger; a connecting hole is arranged on the side wall of the heating plate fixed at the bottom of the forging block, which can be connected to a heating device; after the steel pipe to be forged is placed, the heating plate can be connected to the heating device, and the part of the steel pipe to be forged that needs to be bent is locally heated to soften its properties, so that the bending work can be completed with less force; by heating, a forging machine with a lower number of sections can be used for forging, thereby improving the forging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 is a cross-sectional view of this embodiment.

[0020] Figure 2 It is a top view of this embodiment.

[0021] Figure 3 It is a schematic diagram of the structure of the workpiece completed by press forging in this embodiment.

[0022] In the figure, 1, base; 2, fixing seat 1; 3, fixing seat 2; 4, clamping block 1; 5, clamping block 2; 6, connecting plate; 7, forging block; 8, fixing seat 3; 9, heating plate; 10, cavity 1; 11, cavity 2; 12, cavity 3; 13, fixing bolt; 14, connecting bolt; 15, clamping block; 16, connecting block; 17, limit block. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Figure 1 As shown, a die forging die for a middle axle of an automobile comprises a base 1, a fixing seat 1 2 and a fixing seat 2 3 are fixed to the top two ends of the base 1 respectively, a clamping block 1 4 and a clamping block 2 5 are arranged on the top of the fixing seat 1 2 and the fixing seat 2 3 respectively, a connecting plate 6 is fixed to the top of the clamping block 1 4 and the clamping block 2 5, a forging block 7 is also fixed to the top of the connecting plate 6, the forging block 7 is arranged between the clamping block 1 4 and the clamping block 2 5, a fixing seat 3 8 is arranged at the bottom of the forging block 7, the fixing seat 3 8 is arranged between the fixing seat 1 2 and the fixing seat 2 3, a heating plate 9 is fixed to the inner wall of the bottom of the forging block 7, and a connecting hole is opened on the side wall of the heating plate 9. In actual operation, firstly, the two ends of the steel plate to be forged are placed in the cavity 10 and the cavity 2 11, and the left and right sides are fixed. The cavities at both ends support the steel plates to be forged to prevent the middle cavity three 12 from being subjected to greater force during forging and causing the two ends of the steel pipe to curl up. At the same time, since the length of the steel pipe to be forged before bending will exceed the mold, a limit block 17 is set on the side wall of the fixed seat 2 so that the length of the steel pipe to be forged is just right when placed in the cavity three 12. A connecting hole is set on the side wall of the heating plate 9 fixed at the bottom of the forging block 7, which can be connected to a heating device. After the steel pipe to be forged is placed, the heating plate 9 can be connected to the heating device to locally heat the part of the steel pipe to be forged that needs to be bent, so that its properties become softer and the bending work can be completed with less force. By heating, a forging machine with a lower number of sections can be used for forging, thereby improving the forging efficiency.

[0025] like Figure 2As shown, a cavity 10 is provided between the fixing seat 1 2 and the clamping block 1 4, a cavity 2 11 is provided between the fixing seat 2 3 and the clamping block 2 5, and a cavity 3 12 is provided between the forging block 7 and the fixing seat 3 8. The cavity 10, cavity 2 11, and cavity 3 12 are provided in the press forging die to facilitate supporting the steel plate to be forged and avoid that the middle cavity 3 12 is subjected to a large force during forging and causes the two ends of the steel pipe to be tilted. A limiting block 17 is fixed to the side wall of the fixing seat 1 2 at one end away from the fixing seat 3 8. Since the length of the steel pipe to be forged before bending will exceed the mold for a long time, a limiting block 17 is provided on the side wall of the fixing seat 1 2 so that the length of the steel pipe to be forged is just right when placed in the cavity 3 12. A depression is provided in the center of the forging block 7, and a protrusion is provided in the center of the fixing seat 3 8. A fixing bolt 13 is fixed between the clamping block 1 4, the clamping block 2 5, the forging block 7 and the connecting plate 6, and a connecting bolt 14 is fixed between the bottom of the fixing seat 3 8 and the base 1. The clamping block 1 4, the clamping block 2 5, the forging block 7 and the connecting plate 6 are fixed with fixing bolts 13, and the bottom of the fixing seat 3 8 and the base 1 are fixed with connecting bolts 13 and connecting bolts 14. The clamping block 1 4, the clamping block 2 5, the forging block 7, the fixing seat 3 8 and the connecting plate 6 and the base 1 are fixed more firmly by fixing bolts 13 and connecting bolts 14. A clamping block 15 is fixed between the top of the forging block 7 and the connecting plate 6, and a connecting block 16 is fixed between the fixing seat 3 8 and the base 1. The setting of the clamping block 15 and the connecting block 16 makes the fixation of the forging block 7 and the fixing seat 3 8 more stable.

[0026] In actual operation, firstly, the two ends of the steel plate to be forged are placed in cavity one 10 and cavity two 11, and the cavities at the left and right ends support the steel plate to be forged to prevent the middle cavity three 12 from being subjected to greater force during forging and causing the two ends of the steel pipe to be tilted. At the same time, since the length of the steel pipe to be forged before bending will exceed the mold, a limit block 17 is set on the side wall of the fixed seat 2 so that the length of the steel pipe to be forged is just right when placed in cavity three 12. A connecting hole is set on the side wall of the heating plate 9 fixed at the bottom of the forging block 7, which can be connected to a heating device. After the steel pipe to be forged is placed, the heating plate 9 can be connected to the heating device to locally heat the part of the steel pipe to be forged that needs to be bent, so that its properties become softer and the bending work can be completed with less force. By heating, a forging machine with a lower number of sections can be used for forging, thereby improving the forging efficiency.

Claims

1. A die for forging a central axis of an automobile, comprising a base, characterized in that: A fixing seat 1 (2) and a fixing seat 2 (3) are fixed at both ends of the top of the base (1), and a clamping block 1 (4) and a clamping block 2 (5) are arranged on the top of the fixing seat 1 (2) and the fixing seat 2 (3), respectively. A connecting plate (6) is fixed on the top of the clamping block 1 (4) and the clamping block 2 (5), and a forging block (7) is also fixed on the top of the connecting plate (6), and the forging block (7) is arranged between the clamping block 1 (4) and the clamping block 2 (5). A fixing seat 3 (8) is arranged at the bottom of the forging block (7), and the fixing seat 3 (8) is arranged between the fixing seat 1 (2) and the fixing seat 2 (3). A heating plate (9) is fixed on the inner wall of the bottom of the forging block (7), and a connecting hole is opened on the side wall of the heating plate (9).

2. The automobile center axle press forging die according to claim 1, characterized in that: A cavity one (10) is provided between the fixing seat one (2) and the clamping block one (4), a cavity two (11) is provided between the fixing seat two (3) and the clamping block two (5), and a cavity three (12) is provided between the forging block (7) and the fixing seat three (8).

3. The automobile center axle press forging die according to claim 1, characterized in that: A limiting block (17) is fixed on a side wall of one end of the fixing seat 1 (2) away from the fixing seat 3 (8).

4. The automobile center axle press forging die according to claim 1, characterized in that: The forging block (7) is provided with a depression at its center, and the fixing seat (8) is provided with a protrusion at its center.

5. The automobile center axle press forging die according to claim 1, characterized in that: Fixing bolts (13) are fixed between the clamping block 1 (4), the clamping block 2 (5), the forging block (7) and the connecting plate (6), and connecting bolts (14) are fixed between the bottom of the fixing seat 3 (8) and the base (1).

6. The automobile center axle press forging die according to claim 1, characterized in that: A clamping block (15) is fixed between the top of the forging block (7) and the connecting plate (6), and a connecting block (16) is fixed between the fixing seat three (8) and the base (1).

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