Multi-step shaft multidirectional forging forming die

Abstract

The utility model relates to a multidirectional forging forming die for a multi-step shaft, which belongs to the technical field of dies and comprises a workbench, an upper die and a lower die which are matched with each other are arranged on the workbench, the lower die is fixedly arranged on the workbench, the upper die is arranged on the workbench in a sliding manner, and cavities for forming forgings are arranged on the upper die and the lower die in a matched manner. Side dies are symmetrically arranged on the two sides of the lower die and slidably arranged in the cavity, the lower die comprises a fixed part and a sliding part, a sliding through hole allowing the sliding part to slide is formed in the fixed part in a penetrating mode, and the sliding part is used for driving the forge piece to move to be separated from the fixed part. The multi-step shaft is produced through the multi-direction forging forming die, the material utilization rate in the production process of the multi-step shaft is effectively increased, and compared with a common forging mode, the production efficiency of the multi-step shaft is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mould, especially to a multi-step shaft multidirectional forging forming die. BACKGROUND

[0002] The multi-step shaft refers to the shaft that is processed by multiple parts with different levels, which has unique structure, rich function and wide application.

[0003] The multi-step shaft in the prior art is mostly processed by turning due to the requirement of precision, and the main surface still needs to be ground after turning to ensure the quality of the manufactured multi-step shaft, so the production efficiency of the multi-step shaft is low. UTILITY MODEL CONTENT

[0004] In order to improve the production efficiency of the multi-step shaft, the application provides a multi-step shaft multidirectional forging forming die.

[0005] The multi-step shaft multidirectional forging forming die provided by the application adopts the following technical scheme:

[0006] The multi-step shaft multidirectional forging forming die comprises a workbench, an upper die and a lower die matched with each other are arranged on the workbench, the lower die is fixed on the workbench, the upper die is slidingly arranged on the workbench, and a cavity for forming a forged piece is arranged on the upper die and the lower die.

[0007] The lower die is symmetrically provided with side dies on both sides, the side dies are slidingly arranged in the cavity, the lower die comprises a fixed part and a sliding part, a sliding hole for the sliding part to slide is arranged through the fixed part, and the sliding part is used to drive the forged piece to move away from the fixed part.

[0008] By adopting the above technical scheme, the multi-step shaft is produced by the multidirectional forging forming die in the application, which effectively improves the material utilization rate in the production process of the multi-step shaft, and effectively improves the production efficiency of the multi-step shaft compared with the ordinary forging method; the forged piece is separated from the fixed part by the sliding of the sliding part, so that the demolding of the forged piece is realized, which is convenient for the demolding of the forged piece and further improves the production efficiency of the multi-step shaft.

[0009] Preferably, a guide column is arranged on the lower die, and a guide hole matched with the guide column is arranged through the upper die.

[0010] By adopting the above technical scheme, the guide column and the guide hole are matched to provide guidance for the sliding of the upper die, so that the cavity formed by the cooperation of the upper die and the lower die is not easy to be dislocated, the quality of the manufactured multi-step shaft is improved, the subsequent rework process is reduced, and the production efficiency of the multi-step shaft is improved.

[0011] Preferably, the side die is provided with a locking block away from one side of the lower die, and the upper die is provided with a locking sliding groove for embedding the locking block after sliding.

[0012] By adopting the above technical scheme, the locking block cooperates with the locking sliding groove to limit the movement of the upper die relative to the lower die during the forming of the forged part, thereby further ensuring the quality of the multi-step shaft.

[0013] Preferably, the diameters of the guide columns and the locking block towards the lower die decrease in turn towards the direction of the lower die.

[0014] By adopting the above technical scheme, the guide columns can be embedded in the guide through holes during the movement of the upper die, and the locking block can be embedded in the locking sliding groove during the sliding of the locking block.

[0015] Preferably, the locking block is slidingly arranged on the side die, and the locking block slides in the vertical direction. The side die is provided with a control member for controlling the sliding of the locking block.

[0016] By adopting the above technical scheme, since the upper die, the lower die and the side die may have some deviations from the standard size during the manufacturing process or after long-term use, the position of the locking block can be adjusted through the sliding of the locking block, so that the locking block can better correspond to the locking sliding groove on the upper die, thereby improving the reliability of limiting the sliding of the upper die through the cooperation of the locking block and the locking groove.

[0017] Preferably, the control member includes a control knob rotatingly arranged on the side die, the control knob is provided with a control screw, the locking block is provided with a control block, the control block has a polygonal cross section, the side die is provided with a control groove for sliding the control block, and the control block is provided with a control thread groove threadedly cooperating with the control screw.

[0018] By adopting the above technical scheme, the control block cooperates with the control groove to limit the rotation of the locking block. Through the rotation of the control knob, the locking block moves relative to the side die under the action of thread transmission. The thread has a self-locking function, thereby facilitating the locking of the locking block.

[0019] In summary, the present application has at least one of the following beneficial technical effects:

[0020] 1. In the present application, the multi-step shaft is produced by the multi-directional forging forming die, which effectively improves the material utilization rate in the production process of the multi-step shaft, and effectively improves the production efficiency of the multi-step shaft compared with the ordinary forging method.

[0021] 2. The sliding of the sliding part separates the forged part from the fixed part, thereby achieving the demolding of the forged part, facilitating the demolding of the forged part, and further improving the production efficiency of the multi-step shaft. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram of the embodiment of the application.

[0023] Figure 2 It is the cross-sectional view after the forging is extruded in the embodiment of the application.

[0024] Figure 3 It is Figure 2 The enlarged view of A part in the above.

[0025] Figure 4 It is the top view of the upper die in the embodiment of the application.

[0026] Figure 5 It is the side view of the upper die in the embodiment of the application.

[0027] Figure 6 It is the side view of the lower die in the embodiment of the application.

[0028] Mark explanation: 1, workbench; 2, upper die; 21, control cylinder; 22, guide through hole; 23, locking sliding groove; 24, let go of the slot; 3, lower die; 31, extrusion through hole; 32, fixed part; 321, sliding through hole; 33, sliding part; 331, demolding cylinder; 34, guide column; 4, cavity; 5, side die; 51, side sliding cylinder; 52, locking block; 521, control block; 522, control screw groove; 53, control knob; 531, control screw; 54, control groove; 6, forging. DETAILED DESCRIPTION

[0029] The following will be combined with the attached Figures 1-6 The utility model is further explained in detail.

[0030] The embodiment of the application discloses a multi-step shaft multi-directional forging forming die, referring to Figure 1 And Figure 2 , comprising a workbench 1, the workbench 1 is used to support the multi-directional forging forming die in the application, and the multi-step shaft is produced by the multi-directional forging forming die, so that the material utilization rate in the production process of the multi-step shaft is effectively improved, and compared with the ordinary forging mode, the production efficiency of the multi-step shaft is effectively improved.

[0031] Referring to Figure 1 And Figure 2 , the workbench 1 is provided with the upper die 2 and the lower die 3 matched with each other, the lower die 3 is placed on the workbench 1, and the lower die 3 and the workbench 1 can be fixed by the bolt or welding mode, the upper die 2 is slidably arranged on the workbench 1, the upper die 2 slides along the vertical direction, the control cylinder 21 for controlling the sliding of the upper die 2 is fixed on the workbench 1, the piston rod of the control cylinder 21 is fixed to the end face of the upper die 2 away from the lower die 3, and the upper die 2 and the lower die 3 are matched with the cavity 4 for forming the forging 6.

[0032] Referring to Figure 1 and Figure 2 , the two sides of the lower die 3 are symmetrically provided with side dies 5, and the workbench 1 is fixedly provided with a side sliding cylinder 51 for controlling the sliding of the side dies 5. The piston rod of the side sliding cylinder 51 is fixed to the end of the side die 5 away from the lower die 3, and the sliding of the lower die 3 is controlled through the side sliding cylinder 51. The outer diameter of the side die 5 is consistent with the inner diameter of the cavity 4 close to the side die 5. The lower die 3 is provided with an extrusion through hole 31 for the sliding of the side die 5, and the extrusion through hole 31 is in communication with the cavity 4. The side die 5 is slidingly arranged in the cavity 4. The upper die 2 and the lower die 3 cooperate with the side die 5 to extrude the forged piece 6.

[0033] Referring to Figure 2 , the lower die 3 includes a fixed part 32 and a sliding part 33. The fixed part 32 is fixedly arranged on the workbench 1. The part of the lower die 3 cooperating with the upper die 2 to form the cavity 4 is located on the sliding part 33. The fixed part 32 is provided with a sliding through hole 321 for the sliding of the sliding part 33. When the forged piece 6 is formed and the upper die 2 is moved to separate from the lower die 3, the forged piece 6 can be separated from the fixed part 32 through the sliding of the sliding part 33, so as to realize the demolding of the forged piece 6, facilitate the demolding of the forged piece 6, and further improve the production efficiency of the multi-step shaft. The workbench 1 is fixedly provided with a demolding cylinder 331 for controlling the sliding of the sliding part 33. The piston rod of the demolding cylinder 331 is fixed to the side of the sliding part 33 away from the upper die 2.

[0034] In the actual forging process, the diameter ratio of the forged piece 6 for manufacturing the multi-step shaft after being upset to the shaft body diameter of the finished multi-step shaft needs to be greater than 2, so that in the subsequent extrusion process, the forged piece 6 has sufficient deformation, and the forged piece 6 can reach the dynamic recrystallization deformation, thereby refining the grain of the blank body, obtaining a better post-forging structure, improving the uniformity of the structure, and providing refined initial grains for post-forging heat treatment. However, the diameter ratio should not be too large, and needs to meet the requirement of completing the forging in one heating.

[0035] Referring to Figure 2 , Figure 3 and Figure 4 , the lower die 3 is fixedly provided with a guide column 34, and the guide column 34 can be fixed to the lower die 3 by welding. The upper die 2 is provided with a guide through hole 22 cooperating with the guide column 34. The guide column 34 cooperates with the guide through hole 22 to provide guidance for the sliding of the upper die 2, so that the cavity 4 formed by the cooperation of the upper die 2 and the lower die 3 is not easy to be misaligned, the quality of the manufactured multi-step shaft is improved, the subsequent rework process is reduced, and the production efficiency of the multi-step shaft is improved.

[0036] Referring to Figure 3 , Figure 5 and Figure 6, the side die 5 is provided with a locking block 52 away from one side of the lower die 3, the upper die 2 is provided with a locking sliding groove 23 for embedding the locking block 52 after sliding, and the upper die 2 is further provided with a displacement slot 24 for providing displacement for the locking block 52, the displacement slot 24 is communicated with the locking sliding groove 23, through the setting of the displacement slot 24, the upper die 2 can be first slid to be attached to the lower die 3, and then the locking block 52 is embedded in the locking sliding groove 23 with the sliding of the side die 5, the locking block 52 cooperates with the locking sliding groove 23 to limit the movement of the upper die 2 relative to the lower die 3 in the process of forming the forging 6, and the quality of the multi-step shaft is further ensured.

[0037] With reference to Figure 2 , the diameters of the guide column 34 and the locking block 52 towards the lower die 3 are sequentially decreased towards the lower die 3, so that the guide column 34 can be embedded in the guide through hole 22 during the movement of the upper die 2, and the locking block 52 can be embedded in the locking sliding groove 23 during the sliding of the locking block 52.

[0038] With reference to Figure 2 and Figure 3 , the locking block 52 is slidably arranged on the side die 5, the locking block 52 slides in the vertical direction, the upper die 2, the lower die 3 and the side die 5 may have some deviations from the standard size after being manufactured or being used for a long time, through the sliding of the locking block 52, the position of the locking block 52 can be adjusted, so that the locking block 52 can better correspond to the locking sliding groove 23 on the upper die 2, and the reliability of limiting the sliding of the upper die 2 through the cooperation of the locking block 52 and the locking groove is improved.

[0039] With reference to Figure 2 and Figure 3 , the side die 5 is provided with a control member for controlling the sliding of the locking block 52, the control member includes a control knob 53 rotatably arranged on the side die 5, the control knob 53 is located on the side of the side die 5 away from the locking block 52, the control knob 53 only has rotation relative to the side die 5 and is not easy to slide relative to the side die 5, the control knob 53 is fixedly provided with a control screw rod 531, the locking block 52 is integrally formed with a control block 521, the cross section of the control block 521 is polygonal, in the embodiment of the application, the cross section of the control block 521 is quadrangular, the side die 5 is provided with a control slot 54 for sliding the control block 521, the control block 521 cooperates with the control slot 54 to limit the rotation of the locking block 52, the control block 521 is provided with a control screw groove 522 threadedly matched with the control screw rod 531, through the rotation of the control knob 53, the locking block 52 moves relative to the side die 5 under the action of screw transmission, and the screw has a self-locking function, so as to facilitate the locking of the locking block 52.

[0040] The implementation principle of the embodiment of the multi-step shaft multi-directional forging forming die is as follows: the forging 6 is placed into the cavity 4 of the lower die 3, then the upper die 2 is driven to move to be attached to the lower die 3 by controlling the air cylinder 21, then the side die 5 is controlled to slide into the cavity 4 to be attached to the end of the forging 6 by the side sliding air cylinder 51, the forging 6 is heated, after the forging 6 is heated to above the recrystallization temperature, the side die 5 is controlled to continue to slide into the cavity 4 to extrude the forging 6 by the side sliding air cylinder 51, until the side die 5 slides to the predetermined position, after the forging 6 is formed, the side die 5 slides to the locking block 52 to be separated from the upper die 2, then the upper die 2 slides to be separated from the lower die 3, the sliding part 33 slides to the direction of the upper die 2 under the action of the demolding air cylinder 331, so that the formed forging 6 is separated from the die.

[0041] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A multi-step shaft multi-directional swage forming die characterized by, The utility model provides a kind of forging die, including workbench (1), the workbench (1) is equipped with the upper die (2) and lower die (3) matched with each other, the lower die (3) is fixed on workbench (1), the upper die (2) is slidably arranged on workbench (1), the upper die (2) and lower die (3) are equipped with cavity (4) for the forging (6) forming matched on, and the cavity (4) is used for the forging (6) forming; The lower die (3) is symmetrically provided with side dies (5) on both sides, the side dies (5) are slidably arranged in the cavity (4), the lower die (3) includes a fixed portion (32) and a sliding portion (33), the fixed portion (32) is provided with a sliding hole (321) for the sliding of the sliding portion (33), and the sliding portion (33) is used to move the forging (6) away from the fixed portion (32).

2. The multi-step shaft multi-directional forging forming die according to claim 1, characterized by, The lower die (3) is provided with a guide column (34), and the upper die (2) is provided with a guide hole (22) matched with the guide column (34).

3. The multi-step shaft multi-directional forging forming die of claim 2, wherein, The side die (5) is provided with a locking block (52) away from the lower die (3), and the upper die (2) is provided with a locking slot (23) for embedding the locking block (52) after sliding.

4. The multi-step shaft multi-directional forging forming die according to claim 3, characterized by, The diameters of the guide column (34) and the locking block (52) toward the lower die (3) decrease in turn toward the lower die (3).

5. The multi-step shaft multi-directional forging forming die of claim 3, wherein, The locking block (52) is slidably arranged on the side die (5), and the locking block (52) slides in the vertical direction, and the side die (5) is provided with a control member for controlling the sliding of the locking block (52).

6. The multi-step shaft multi-directional forging forming die of claim 5, wherein, The control member includes a control knob (53) rotatably arranged on the side die (5), the control knob (53) is provided with a control screw (531), the locking block (52) is provided with a control block (521), the control block (521) has a polygonal cross section, the side die (5) is provided with a control groove (54) for the sliding of the control block (521), and the control block (521) is provided with a control thread groove (522) threadedly matched with the control screw (531).

Images