Composite forging and pressing die structure of airplane rear casing forge piece

Abstract

The utility model discloses a composite forging and stamping die structure of an airplane rear casing forge piece, and relates to the technical field of rear casing forging, the composite forging and stamping die structure comprises control sliding rails, a support, a base table and a die assembly, the control sliding rails are symmetrically arranged, and the top ends of the control sliding rails are connected with sliding blocks in a sliding mode. According to the pressing-down clamping mechanism, a first gear and a second gear can be controlled to rotate at the same time through a rotating rod, first clamping rods are close to each other under the action of a first rack, second clamping rods are close to each other under the action of a second rack, the first clamping rods are matched with an inserting groove, movement of the upper module can be controlled, and the upper module can be clamped by the rotating rod under the action of a reset spring. The movable block abuts against the first clamping rod, position deviation of the upper module in the moving process is avoided, movement of the outer module and movement of the left module and the right module are achieved in the mode that the second clamping rod is matched with the first inserting hole and the second inserting hole, operation convenience is improved, and combination and separation of different modules are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rear casing forging, in particular to a composite forging die structure for aircraft rear casing forgings. Background Art

[0002] The aircraft casing is an important component of the jet engine, which is divided into the front casing and the rear casing. The aircraft rear casing forging is one of the key basic parts in the aviation manufacturing industry. Its quality is directly related to the flight safety and performance of the aircraft. In the manufacturing process of the aircraft rear casing, the application of composite forging die structure is of great significance for improving the precision of forgings, reducing processing links and improving production efficiency.

[0003] However, during the forging process, the limitations of the die structure make it difficult to effectively forge different parts of the workpiece, especially for forgings with complex shapes and high precision requirements. This not only leads to unstable forging quality, but also, in some cases, it is difficult to demold the die or the shaping is unsuccessful, resulting in material waste and reduced production efficiency. Therefore, a composite forging die structure for aircraft rear casing forgings is needed to address this existing problem. Utility Model Content

[0004] The purpose of the utility model is to provide a composite forging die structure for aircraft rear casing forgings, which helps to keep the positions of lower module one and lower module two fixed by providing a positioning mechanism, facilitates the alignment of the workpiece therewith, and improves the operation accuracy; and realizes the movement of the outer module and the movement of the left module and the right module by providing a downward clamping mechanism, improves the convenience of operation, and realizes the combination and separation of different modules.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a composite forging die structure for aircraft rear casing forgings, comprising a control slide rail, a bracket, a base and a die assembly, wherein the control slide rail is symmetrically arranged, and the top end of the control slide rail is slidably connected to a slider, the top end of the slider is fixedly connected to the two sides of the bottom end of the bracket, the top end of the slider is fixedly connected to a positioning mechanism, and the positioning mechanism is located on the inner side of the bottom end of the bracket, the base is located on the opposite side of the control slide rail, and the top end of the base is respectively placed with a lower module 1 and a lower module 2, the inner bottom end of the bracket is fixedly connected to a controller, and the bottom end of the controller is fixedly connected to a downward clamping mechanism, the downward clamping mechanism is connected to the die assembly, and the bottom end of the die assembly is respectively matched with the lower module 1 and the lower module 2.

[0007] The present invention is further configured as follows: the mold assembly includes an upper module, an outer module, a left module and a right module, the opposite sides of the left module and the right module cooperate with each other, and the left module and the right module are movably connected to the opposite sides of the outer module, the bottom end of the upper module is located on the opposite side of the left module and the right module, and the top end of the lower module one and the top end of the lower module two are both located on the opposite side of the left module and the right module.

[0008] The utility model is further configured as follows: the positioning mechanism includes a support block, a hydraulic rod and a clamping block, the bottom end of the support block is fixedly connected to the top of the slider, the rear end of the clamping block is movably connected to the top of the support block, the hydraulic rod is fixedly connected to the top of the support block, and the telescopic end of the hydraulic rod is fixedly connected to the rear end of the clamping block.

[0009] The present invention is further configured such that the front end of the clamping block is arc-shaped, and the front side of the clamping block is movably connected to the outer side of the lower module one and the outer side of the lower module two.

[0010] The present invention is further configured as follows: the downward clamping mechanism includes a downward pressing block, a rotating rod, gear one, rack one, gear two and rack two; the top end of the downward pressing block is fixedly connected to the bottom end of the controller; the rotating rod passes through gear one and gear two, and the rotating rod is fixedly connected to gear one and gear two; the gear one is located directly above gear two; the rack one is symmetrically arranged with the axis of the rotating rod as the origin, and rack one is meshed with gear one; the rack two is symmetrically arranged with the axis of the rotating rod as the origin, and rack two is meshed with gear two; the gear one and gear two are both movably connected to the inside of the downward pressing block through the rotating rod, and the rack one and rack two are both movably connected to the inside of the downward pressing block.

[0011] The utility model is further configured such that the end of the rack 1 away from the rotating rod is fixedly connected to the clamping rod 1, and the end of the rack 2 away from the rotating rod is fixedly connected to the clamping rod 2, the interior of the lower pressure block is fixedly connected to a servo motor, and the output end of the servo motor is fixedly connected to the top end of the rotating rod.

[0012] The utility model is further configured as follows: a group of symmetrical slots are opened inside the top of the upper module, and the inside of the slots are fixedly connected with a reset spring, and the other end of the reset spring is fixedly connected with a moving block, the bottom end of the clamping rod one is respectively adapted to the slot, and a group of symmetrical jacks one are opened on the outside of the outer module, and the bottom end of the clamping rod two is respectively adapted to the jack one, and the outside of the left module and the outside of the right module are both provided with jack two, and the bottom end of the clamping rod two is respectively adapted to the jack two.

[0013] The utility model is further configured such that the bottom end of the lower module two is movably connected with a push ring, and the top end of the push ring conflicts with the bottom end of the left module and the bottom end of the right module, and the interior of the lower module two is fixedly connected with a group of symmetrical electric push rods, and the telescopic ends of the electric push rods are fixedly connected to the bottom end of the push ring.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model provides a positioning mechanism, and the support block is fixed on the slider, so that the clamping block can move with the slider, thereby facilitating the switching of the clamping object, helping to keep the position of the lower module 1 and the lower module 2 fixed, facilitating the alignment of the workpiece with it, and improving the operating accuracy.

[0016] 2. The utility model sets up a downward clamping mechanism, which can control gear one and gear two to rotate simultaneously through a rotating rod. Under the action of rack one, clamping rod one approaches each other, and under the action of rack two, clamping rod two approaches each other. The cooperation between clamping rod one and the slot can control the movement of the upper module. Under the action of the reset spring, the moving block and clamping rod one conflict with each other, avoiding position displacement of the upper module during movement, and the cooperation between clamping rod two and socket one and socket two can realize the movement of the outer module and the movement of the left module and the right module, thereby improving the convenience of operation and realizing the combination and separation of different modules.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic structural diagram of the mold assembly of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the inner parts of the bracket of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the downward pressing clamping mechanism of the present utility model;

[0023] Figure 5 This is a schematic diagram of the positioning mechanism structure of the utility model;

[0024] Figure 6 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0025] In the figure: 1. Control slide rail; 2. Bracket; 3. Base; 4. Mold assembly; 401. Upper module; 402. Outer module; 403. Left module; 404. Right module; 5. Slider; 6. Positioning mechanism; 601. Support block; 602. Hydraulic rod; 603. Clamping block; 7. Lower module 1; 8. Lower module 2; 9. Controller; 10. Down-pressing clamping mechanism; 1001. Down-pressing block; 1002. Rotating rod; 1003. Gear 1; 1004. Rack 1; 1005. Gear 2; 1006. Rack 2; 11. Clamping rod 1; 12. Clamping rod 2; 13. Servo motor; 14. Slot; 15. Return spring; 16. Moving block; 17. Socket 1; 18. Socket 2; 19. Push ring; 20. Electric push rod. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0027] like Figure 1-6 As shown, the utility model provides a technical solution: a composite forging die structure for an aircraft rear casing forging, comprising a control slide rail 1, a bracket 2, a base 3 and a die assembly 4, the control slide rail 1 is symmetrically arranged, and the top end of the control slide rail 1 is slidably connected to a slider 5, the top end of the slider 5 is respectively fixedly connected to the two sides of the bottom end of the bracket 2, the top end of the slider 5 is fixedly connected to a positioning mechanism 6, and the positioning mechanism 6 is located on the inner side of the bottom end of the bracket 2, the base 3 is located on the opposite side of the control slide rail 1, and the top end of the base 3 is respectively placed with a lower module 1 7 and a lower module 2 8, the inner bottom end of the bracket 2 is fixedly connected to a controller 9, and the bottom end of the controller 9 is fixedly connected to a downward clamping mechanism 10, the downward clamping mechanism 10 is connected to the die assembly 4, and the bottom end of the die assembly 4 is respectively matched with the lower module 1 7 and the lower module 2 8.

[0028] First, the mold assembly 4 is supported by the lower module 1 7 to facilitate forging and shaping the upper part of the workpiece first. Then, the mold assembly 4 is controlled to move by the bracket 2, and the positioning mechanism 6 switches and fixes the lower module 2 8 to forge and shape the lower part of the workpiece, thereby completing the forging and shaping at different positions in two times, avoiding the situation where a single mold is difficult to demold or the shaping is unsuccessful.

[0029] like Figure 1 and Figure 2 As shown, the mold assembly 4 includes an upper module 401, an outer module 402, a left module 403 and a right module 404. The opposite sides of the left module 403 and the right module 404 cooperate with each other, and the left module 403 and the right module 404 are movably connected to the opposite sides of the outer module 402. The bottom end of the upper module 401 is located on the opposite side of the left module 403 and the right module 404, and the top end of the lower module 1 7 and the top end of the lower module 2 8 are both located on the opposite side of the left module 403 and the right module 404.

[0030] The left mold and the right mold are in an inverted frustum shape after they cooperate with each other, so that the left mold and the right mold can move downward to the inner side of the outer mold and automatically cooperate with each other. At the same time, it is convenient for the left mold and the right mold to be separated from the outer mold. The outer mold effectively limits the position of the left mold and the right mold, making it convenient for different upper and lower molds to shape the workpiece.

[0031] like Figure 1 and Figure 5 As shown, the positioning mechanism 6 includes a support block 601, a hydraulic rod 602 and a clamping block 603. The bottom end of the support block 601 is fixedly connected to the top of the slider 5, and the rear end of the clamping block 603 is movably connected to the top of the support block 601. The hydraulic rod 602 is fixedly connected to the top of the support block 601, and the telescopic end of the hydraulic rod 602 is fixedly connected to the rear end of the clamping block 603. The front end of the clamping block 603 is arc-shaped, and the front side of the clamping block 603 is movably connected to the outer side of the lower module 1 7 and the outer side of the lower module 2 8.

[0032] The support block 601 is fixed on the slider 5, so that the clamping block 603 can move with the slider 5, thereby facilitating the switching of the clamped object, helping to keep the position of the lower module 1 7 and the lower module 2 8 fixed, facilitating the alignment of the workpiece with it, and improving the operating accuracy.

[0033] like Figure 1 、 Figure 3 、 Figure 4 and Figure 6As shown, the pressing clamping mechanism 10 includes a pressing block 1001, a rotating rod 1002, a gear 1 1003, a rack 1004, a gear 2 1005 and a rack 2 1006. The top of the pressing block 1001 is fixedly connected to the bottom of the controller 9. The rotating rod 1002 passes through the gear 1 1003 and the gear 2 1005, and the rotating rod 1002 is fixedly connected to the gear 1 1003 and the gear 2 1005. The gear 1 1003 is located just above the gear 2 1005. The rack 1004 is aligned with the axis of the rotating rod 1002 as the origin. The rack 1004 is meshed with the gear 1003, the rack 2 1006 is symmetrically arranged with the axis of the rotary rod 1002 as the origin, and the rack 2 1006 is meshed with the gear 2 1005, the gear 1003 and the gear 2 1005 are movably connected to the inside of the lower pressure block 1001 through the rotary rod 1002, and the rack 1004 and the rack 2 1006 are movably connected to the inside of the lower pressure block 1001, the end of the rack 1004 away from the rotary rod 1002 is fixedly connected to the clamping rod 11, and the rack The ends of the two 1006 away from the rotating rod 1002 are fixedly connected with the clamping rod 2 12, the interior of the lower pressing block 1001 is fixedly connected with the servo motor 13, and the output end of the servo motor 13 is fixedly connected to the top of the rotating rod 1002, and a group of symmetrical slots 14 are opened inside the top of the upper module 401, and the interior of the slots 14 are fixedly connected with the return spring 15, and the other end of the return spring 15 is fixedly connected with the moving block 16, the bottom ends of the clamping rod 11 are respectively adapted to the slots 14, and the outside of the outer module 402 is opened with a group of symmetrical The outer sides of the left module 403 and the right module 404 are provided with a socket 2 18, and the bottom ends of the clamping rod 2 12 are respectively adapted to the socket 2 18. The bottom end of the lower module 2 8 is movably connected with a push ring 19, and the top ends of the push ring 19 are in conflict with the bottom ends of the left module 403 and the right module 404. A group of symmetrical electric push rods 20 are fixedly connected to the interior of the lower module 2 8, and the telescopic ends of the electric push rods 20 are fixedly connected to the bottom ends of the push rings 19.

[0034] The rotating rod 1002 can control gear one 1003 and gear two 1005 to rotate simultaneously. Under the action of rack one 1004, clamping rod one 11 approaches each other, and under the action of rack two 1006, clamping rod two 12 approaches each other. Through the mutual cooperation between clamping rod one 11 and slot 14, the movement of the upper module 401 can be controlled. Under the action of the reset spring 15, the moving block 16 and clamping rod one 11 conflict with each other to avoid position displacement of the upper module 401 during movement. In addition, through the mutual cooperation between clamping rod two 12 and socket one 17 and socket two 18, the movement of the outer module 402 and the movement of the left module 403 and the right module 404 are realized, thereby improving the convenience of operation and realizing the combination and separation of different modules.

[0035] Working principle: When in use, first, in the initial state, the left module 403 and the right module 404 cooperate with each other on the inner side of the outer module 402, and the lower module 7 is inserted into the opposite sides of the bottom ends of the left module 403 and the right module 404, and then the original cylindrical workpiece is inserted into the opposite sides of the left module 403 and the right module 404, and the top of the lower module 7 is adapted to the inner side of the workpiece, then, the control slide 1 is used to drive the slider 5 to move, so that the bracket 2 moves along the length direction of the control slide 1, at this time, the bottom ends of the clamping rod 11 are respectively inserted into the inside of the slot 14, and the bottom end of the lower pressure block 1001 is fitted with the top of the upper module 401, and it is moved to the top of the workpiece through the bracket 2, and then the controller 9 is used to control the upper module 401 to move downward The bottom end of the lower module is inserted into the inner side of the workpiece until the edge of the lower module fits with the edge of the outer module 402. At this time, the top of the workpiece is stretched open, thereby completing the shaping of the top of the workpiece, and the outer side of the top of the workpiece fits with the inner side of the left module 403 and the inner side of the right module 404. Then the servo motor 13 is started to drive the rotating rod 1002 to rotate, and the gear 1003 and the gear 2 1005 rotate synchronously. Under the action of the rack 1004, the clamping rod 11 approaches each other, and the bottom end of the clamping rod 11 continuously extends into the interior of the slot 14, pushing the moving block 16 to move inward, causing the reset spring 15 to compress and shorten. Under the action of the rack 2 1006, the clamping rod 2 12 approaches each other until the bottom ends of the clamping rod 2 12 are respectively inserted into the socket 17. Inside, the controller 9 can then be used to lift all parts except the lower module 1 7, and then, through the hydraulic rod 602 on the top of the support block 601, the front end of the clamping block 603 is controlled to move away from the outside of the lower module 1 7 to release the fixation of the lower module 1 7, and then, through the bracket 2, the entire module is moved to the top of the lower module 2 8, and the clamping blocks 603 are controlled to move closer to each other through the hydraulic rod 602, so as to fix the position of the lower module 2 8, and then, the controller 9 is used to lower the entire module until the top part of the lower module 2 8 is completely inserted into the inside of the workpiece, thereby stretching the bottom of the workpiece outward, so that the outside of the bottom of the workpiece fits with the bottom inside of the left module 403 and the bottom inside of the right module 404, thereby completing the entire shaping of the workpiece. Operation, then, use the servo motor 13 to control the bottom end of the clamping rod 2 12 to separate from the socket 1 17. At this time, the bottom end of the clamping rod 11 is still inside the slot 14. Use the controller 9 to move the lower pressure block 1001 upward to separate the upper module 401. Subsequently, use the electric push rod 20 inside the lower module 8 to control the push ring 19 to move upward, thereby pushing out the left module 403 and the right module 404 on the inside of the outer module 402 until the socket 2 18 is exposed. At this time, use the servo motor 13 to control the clamping rod 2 12 to move closer to each other until the bottom ends of the clamping rod 2 12 are respectively inserted into the inside of the socket 2 18, thereby moving the lower pressure block 1001 upward, and the left module 403 and the right module 404 can be separated from the outer module 402 at the same time. Finally,Place the left module 403 and the right module 404 on the workbench, separate the left module 403 and the right module 404, and then take out the formed workpiece.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A composite forging die structure for aircraft rear casing forgings, comprising a control slide rail (1), a bracket (2), a base (3) and a die assembly (4), characterized in that: The control rail (1) is symmetrically arranged, and the top of the control rail (1) is slidably connected to a slider (5), the top of the slider (5) is fixedly connected to the two sides of the bottom of the bracket (2), the top of the slider (5) is fixedly connected to a positioning mechanism (6), and the positioning mechanism (6) is located on the inner side of the bottom of the bracket (2), the base (3) is located on the opposite side of the control rail (1), the top of the base (3) is respectively placed with a lower module 1 (7) and a lower module 2 (8), the inner bottom end of the bracket (2) is fixedly connected to a controller (9), and the bottom end of the controller (9) is fixedly connected to a downward clamping mechanism (10), the downward clamping mechanism (10) is connected to the mold assembly (4), and the bottom end of the mold assembly (4) is respectively matched with the lower module 1 (7) and the lower module 2 (8).

2. The composite forging die structure for an aircraft rear casing forging according to claim 1, characterized in that: The mold assembly (4) includes an upper module (401), an outer module (402), a left module (403) and a right module (404), the opposite sides of the left module (403) and the right module (404) cooperate with each other, and the left module (403) and the right module (404) are both movably connected to the opposite sides of the outer module (402), the bottom end of the upper module (401) is located on the opposite side of the left module (403) and the right module (404), and the top end of the lower module one (7) and the top end of the lower module two (8) are both located on the opposite side of the left module (403) and the right module (404).

3. The composite forging die structure for an aircraft rear casing forging according to claim 2, characterized in that: The positioning mechanism (6) comprises a support block (601), a hydraulic rod (602) and a clamping block (603), wherein the bottom end of the support block (601) is fixedly connected to the top end of the slider (5), the rear end of the clamping block (603) is movably connected to the top end of the support block (601), the hydraulic rod (602) is fixedly connected to the top end of the support block (601), and the telescopic end of the hydraulic rod (602) is fixedly connected to the rear end of the clamping block (603).

4. The composite forging die structure for an aircraft rear casing forging according to claim 3, characterized in that: The front end of the clamping block (603) is arc-shaped, and the front side of the clamping block (603) is movably connected to the outer side of the lower module one (7) and the outer side of the lower module two (8).

5. The composite forging die structure for an aircraft rear casing forging according to claim 4, characterized in that: The downward clamping mechanism (10) comprises a downward pressing block (1001), a rotating rod (1002), a gear 1 (1003), a rack 1 (1004), a gear 2 (1005) and a rack 2 (1006), wherein the top end of the downward pressing block (1001) is fixedly connected to the bottom end of the controller (9), the rotating rod (1002) passes through the gear 1 (1003) and the gear 2 (1005), and the rotating rod (1002) is fixedly connected to the gear 1 (1003) and the gear 2 (1005), the gear 1 (1003) is located directly above the gear 2 (1005), and the gear 2 (1006) is fixedly connected to the gear 1 (1003). Rack one (1004) is symmetrically arranged with the axis of the rotating rod (1002) as the origin, and rack one (1004) is meshed with gear one (1003), and rack two (1006) is symmetrically arranged with the axis of the rotating rod (1002) as the origin, and rack two (1006) is meshed with gear two (1005), and gear one (1003) and gear two (1005) are both movably connected to the interior of the lower pressure block (1001) through the rotating rod (1002), and rack one (1004) and rack two (1006) are both movably connected to the interior of the lower pressure block (1001).

6. The composite forging die structure for an aircraft rear casing forging according to claim 5, characterized in that: The end of the rack 1 (1004) away from the rotating rod (1002) is fixedly connected to the clamping rod 1 (11), and the end of the rack 2 (1006) away from the rotating rod (1002) is fixedly connected to the clamping rod 2 (12), and the interior of the lower pressing block (1001) is fixedly connected to the servo motor (13), and the output end of the servo motor (13) is fixedly connected to the top end of the rotating rod (1002).

7. The composite forging die structure for an aircraft rear casing forging according to claim 6, characterized in that: A group of symmetrical slots (14) are provided inside the top of the upper module (401), and a reset spring (15) is fixedly connected inside the slots (14), and the other end of the reset spring (15) is fixedly connected to a moving block (16), the bottom end of the clamping rod (11) is respectively adapted to the slots (14), the outer side of the outer module (402) is provided with a group of symmetrical jacks (17), and the bottom end of the clamping rod (12) is respectively adapted to the jacks (17), the outer side of the left module (403) and the outer side of the right module (404) are both provided with jacks (18), and the bottom end of the clamping rod (12) is respectively adapted to the jacks (18).

8. The composite forging die structure for an aircraft rear casing forging according to claim 7, characterized in that: The bottom end of the lower module 2 (8) is movably connected to a push ring (19), and the top end of the push ring (19) is in conflict with the bottom end of the left module (403) and the bottom end of the right module (404). The interior of the lower module 2 (8) is fixedly connected to a group of symmetrical electric push rods (20), and the telescopic ends of the electric push rods (20) are fixedly connected to the bottom end of the push ring (19).

Images