Aluminum alloy part machining stress reliever

Abstract

The application discloses an aluminum alloy part machining stress reliever and relates to the technical field of stress relieving.The aluminum alloy part machining stress reliever comprises a vibrator, the output end of the vibrator is provided with a vibration head, the outside of the vibration head is sleeved with a sleeve head, the outside of the vibrator is provided with a transmission box, the outside of the clamping screw rod is threadedly connected with a clamping rod, the inside of the transmission box is provided with a transmission mechanism, the transmission mechanism can convert vibration of the vibration head into driving force of the clamping screw rod, and the outside of the sleeve head is provided with an annular swing rod which can automatically swing.The application can make the vibration head vibrate by starting the vibrator, make the sleeve head vibrate by the vibration head, and make the clamping screw rod drive the clamping rod to move away from the vibration head, so that the clamping rod can support the aluminum alloy forging cylinder due to the annular design of the clamping rod, the aluminum alloy forging cylinder can be uniformly stressed and the stress can be uniformly relieved, the just-quenched aluminum alloy forging cylinder can be directly clamped and the stress can be relieved by the clamping rod, and the stress relieving is convenient.

Description

Technical Field

[0001] This invention relates to the field of stress relief technology, and more specifically to a stress reliever for machining aluminum alloy parts. Background Technology

[0002] Aluminum alloy sheets and forgings often have large residual stress fields. Research results show that the actual effect of using hot water quenching or organic medium quenching to reduce the residual stress is very limited. Therefore, a special process for eliminating residual stress must be arranged during the production of aluminum alloy blanks.

[0003] Chinese patent (application number: CN202010377007.0) discloses a method for eliminating residual stress in aluminum alloy aerospace forging cylinders, comprising the following steps: Step 1: Performing solution treatment and quenching heat treatment on the forged cylinder. During the quenching process, a circumferential support frame is installed inside the forging cylinder to prevent large deformation of the long forging cylinder; Step 2: Determining the amount of cold expansion deformation to be applied based on the diameter, wall thickness, and material properties of the forging after quenching, and designing the corresponding cold expansion punch and lower anvil based on the calculated cold expansion deformation amount; Step 3: Placing the cold expansion punch into the forging cylinder and pressing it down at a speed of 2 mm / s until the cold expansion punch reaches the bottom of the forging cylinder, then flipping the forging cylinder over and using the same pressing speed to bring the cold expansion punch back to the bottom of the forging cylinder.

[0004] The patent and existing technologies have the following technical problems in practical use:

[0005] 1. In this method, a cold-expansion punch is placed inside the forging cylinder, and the stamping equipment is used to make the cold-expansion punch reach the bottom of the forging cylinder to eliminate stress. During the stamping, the expansion force on different positions of the forging cylinder is different, resulting in uneven stress elimination.

[0006] 2. Vibration relief is most effective when aluminum alloy is in an unstable state immediately after quenching (within 0-2 hours). The temperature of the aluminum alloy is high immediately after quenching, and external tools are needed to place the cold expansion punch in the forging cylinder, making stress relief operation inconvenient. Summary of the Invention

[0007] The purpose of this invention is to solve the problems of uneven stress relief and inconvenient stress relief operation. This invention provides a stress reliever for aluminum alloy parts processing.

[0008] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0009] A stress reliever for machining aluminum alloy parts includes a vibrator, a vibrating head at the output end of the vibrator, a sleeve on the outside of the vibrating head, a transmission box on the outside of the vibrator, a guide rod annularly arranged on the outside of the transmission box, a clamping screw corresponding to the guide rod rotatably mounted on the outside of the transmission box, a clamping rod threadedly connected to the outside of the clamping screw, a guide hole opened inside the clamping rod, and the guide rod passing through the guide hole;

[0010] The transmission box is equipped with a transmission mechanism that converts the vibration of the vibrating head into the driving force of the clamping screw. The sleeve is connected to the transmission mechanism via a transmission steel wire rope. The outer side of the sleeve is provided with a ring-shaped swing rod that can swing automatically. The swing rod is distributed correspondingly to the clamping rod.

[0011] Furthermore, the transmission mechanism includes a fixed shaft fixedly connected inside the transmission box, a winding wheel rotatably mounted on the outer side of the fixed shaft, a torsion spring provided between the winding wheel and the fixed shaft, a first transmission wheel fixedly connected to the outer side of the winding wheel, a drive wheel rotatably mounted inside the transmission box and fixedly connected to the clamping screw, a ratchet rotatably mounted inside the drive wheel, a pawl hinged to the inner wall of the drive wheel, a second transmission wheel fixedly connected to the outer side of the ratchet, and the second transmission wheel meshing with the first transmission wheel.

[0012] Furthermore, the radius of the first drive wheel is greater than the radii of the winding wheel and the second drive wheel.

[0013] Furthermore, the clamping rod has a through hole inside, the clamping screw passes through the through hole, a clamping nut is rotatably installed inside the through hole, a slot is formed on the outer side of the clamping nut, a plug rod that can be inserted into the slot is inserted into the outer side of the clamping rod, and the clamping screw is threadedly connected to the clamping nut.

[0014] Furthermore, a lifting rod is slidably connected inside the transmission box, and a magnetically attracted ring is provided at the top of the lifting rod. An electromagnet is arranged in a ring on the inner wall of the transmission box, and a top spring is provided between the electromagnet and the attracted ring. A lifting ring is fixedly connected to the bottom of the lifting rod, and the lifting ring is sleeved on the vibrating head. A top rod is hinged to the bottom of the lifting ring, and the end of the top rod away from the lifting ring is hinged to the swing rod.

[0015] Furthermore, the swing arm has a lifting hole inside, and a telescopic rod is slidably connected inside the lifting hole. A telescopic spring is provided between the telescopic rod and the inner wall of the lifting hole.

[0016] Furthermore, the telescopic rod is designed with an incline on the side closest to the clamp.

[0017] Furthermore, an auxiliary handle is provided on the outside of the vibrator.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. In this invention, the vibrator is activated to cause the vibrating head to vibrate, which in turn causes the sleeve to vibrate. The sleeve drives the clamping screw to rotate via a transmission wire rope and transmission mechanism. The clamping screw causes the clamping rod to move away from the vibrating head. Due to the ring-shaped design of the clamping rod, the clamping rod expands the aluminum alloy forging cylinder, causing it to expand and eliminate stress, ensuring uniform stress distribution and stress elimination. At the same time, the clamping rod can directly clamp and eliminate stress on the freshly quenched aluminum alloy forging cylinder, making stress elimination convenient.

[0020] 2. In this invention, by controlling the swing arm to swing, the swing arm rests on the clamping rod, and the vibrating head vibrates. The vibrating head drives the sleeve head to vibrate, and the sleeve head, through the swing arm, causes the clamping rod to vibrate. While expanding to eliminate stress, vibration stress is also eliminated, resulting in a good stress elimination effect. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of the invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the vibration transmission structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the headgear of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the transmission box of the present invention;

[0026] Figure 6 This is a schematic diagram of the transmission mechanism of the present invention;

[0027] Figure 7 This is the present invention. Figure 6 Enlarged diagram of part A in the middle;

[0028] Figure 8 This is a schematic diagram of the clamping rod of the present invention;

[0029] Figure 9 This is a cross-sectional schematic diagram of the clamping rod of the present invention.

[0030] Reference numerals: 1. Vibrator; 2. Auxiliary handle; 3. Vibrating head; 4. Transmission box; 5. Sleeve; 6. Guide rod; 7. Clamping screw; 8. Clamping rod; 9. Guide hole; 10. Clamping nut; 11. Slot; 12. Insert rod; 13. Transmission wire rope; 14. Swing rod; 15. Telescopic rod; 16. Telescopic spring; 17. Lifting ring; 18. Top rod; 19. Lifting rod; 20. Suction ring; 21. Electromagnet; 22. Top spring; 23. Fixed shaft; 24. Coil wheel; 25. Torsion spring; 26. First transmission wheel; 27. Drive wheel; 28. Ratchet; 29. ​​Pad; 30. Second transmission wheel. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] like Figures 1-9 As shown, a stress reliever for aluminum alloy parts includes a vibrator 1, a vibrating head 3 at the output end of the vibrator 1, a sleeve 5 sleeved on the outside of the vibrating head 3, a transmission box 4 on the outside of the vibrator 1, a guide rod 6 annularly arranged on the outside of the transmission box 4, a clamping screw 7 corresponding to the guide rod 6 rotatably mounted on the outside of the transmission box 4, a clamping rod 8 threadedly connected to the outside of the clamping screw 7, a guide hole 9 opened inside the clamping rod 8, and the guide rod 6 passing through the guide hole 9.

[0033] The transmission box 4 is equipped with a transmission mechanism, which can convert the vibration of the vibrating head 3 into the driving force of the clamping screw 7. The sleeve 5 is connected to the transmission mechanism through the transmission wire rope 13. The outer side of the sleeve 5 is equipped with a ring-shaped swing rod 14 that can swing automatically. The swing rod 14 is distributed correspondingly with the clamping rod 8.

[0034] In use, the clamping rod 8 is inserted into the quenched aluminum alloy forging cylinder, and then the vibrator 1 is started. The vibrator 1 causes the vibrating head 3 to vibrate, and the vibrating head 3 drives the sleeve head 5 to vibrate. The sleeve head 5 drives the clamping screw 7 to rotate through the transmission wire rope 13 and the transmission mechanism. The clamping screw 7 drives the clamping rod 8 away from the vibrating head 3. Since the clamping rod 8 is a ring design, the clamping rod 8 clamps the aluminum alloy forging cylinder from the inside, and the aluminum alloy forging cylinder can be directly removed from the quenching station, which is convenient to use. Then, the vibrator 1 is controlled to continue running. The clamping rod 8 expands the aluminum alloy forging cylinder, so that the aluminum alloy forging cylinder expands to eliminate stress, ensuring that the aluminum alloy forging cylinder is subjected to uniform force and stress elimination is uniform.

[0035] While the aluminum alloy forging cylinder is being opened, the swing rod 14 is controlled to swing. The swing rod 14 touches the clamping rod 8. The clamping rod 8 applies an expansion force to the aluminum alloy forging cylinder while also applying a vibration force to the aluminum alloy forging cylinder, thereby improving the stress relief effect. Moreover, the device does not require additional drive; stress relief and clamping can be achieved simply by vibration, resulting in a compact structure.

[0036] like Figures 5-7 As shown, in some embodiments, the transmission mechanism includes a fixed shaft 23 fixedly connected inside the transmission box 4, a winding wheel 24 rotatably mounted on the outside of the fixed shaft 23, a torsion spring 25 provided between the winding wheel 24 and the fixed shaft 23, a first transmission wheel 26 fixedly connected to the outside of the winding wheel 24, a drive wheel 27 fixedly connected to the clamping screw 7 rotatably mounted inside the transmission box 4, a ratchet 28 rotatably mounted inside the drive wheel 27, a pawl 29 hinged to the inner wall of the drive wheel 27, a second transmission wheel 30 fixedly connected to the outside of the ratchet 28, and the second transmission wheel 30 meshing with the first transmission wheel 26.

[0037] When vibrator 1 is started, vibrator 1 causes vibrating head 3 to vibrate. Vibrating head 3 drives sleeve head 5 to vibrate. Sleeve head 5 drives winding wheel 24 to reciprocate through transmission wire rope 13 and torsion spring 25. Winding wheel 24 drives first transmission wheel 26 to reciprocate. First transmission wheel 26 drives second transmission wheel 30 to reciprocate. Second transmission wheel 30 drives ratchet 28 to reciprocate. Under the action of pawl 29, drive wheel 27 can only rotate in one direction. Drive wheel 27 drives clamping screw 7 to rotate in one direction. Clamping screw 7 drives clamping rod 8 to continuously move away from vibrating head 3, and clamping drive is stable.

[0038] like Figure 6 As shown, in some embodiments, the radius of the first drive wheel 26 is greater than the radius of the winding wheel 24 and the second drive wheel 30. Through this design, the first drive wheel 26 can amplify the reciprocating rotation amplitude of the winding wheel 24, and the second drive wheel 30 amplifies the reciprocating rotation amplitude of the winding wheel 24 a second time, ensuring that the vibration of the vibrating head 3 can be stably converted into the driving force of the clamping screw 7.

[0039] like Figure 8 , Figure 9 As shown, in some embodiments, the clamping rod 8 has a through hole inside, the clamping screw 7 passes through the through hole, the clamping nut 10 is rotatably installed inside the through hole, the clamping nut 10 has a slot 11 annularly opened on the outside of the clamping nut 10, the clamping rod 8 has a plug rod 12 that can be inserted into the slot 11, and the clamping screw 7 is threadedly connected to the clamping nut 10.

[0040] Due to the ratchet 28 and pawl 29, the clamping screw 7 cannot rotate in the reverse direction. The sleeve 5 needs to be removed from the vibrating head 3 for disassembly. Therefore, in order to facilitate the disassembly of the clamping rod 8, the insert rod 12 is pulled out of the slot 11. At this time, the clamping nut 10 can rotate relative to the clamping rod 8. Then, the clamping rod 8 is pushed close to the vibrating head 3. Under the action of the clamping screw 7, the clamping rod 8 drives the clamping nut 10 to rotate, thereby enabling the clamping rod 8 to stably approach the vibrating head 3 and reset stably.

[0041] like Figure 5As shown, in some embodiments, a lifting rod 19 is slidably connected inside the transmission box 4. A magnetically attracted ring 20 is provided at the top of the lifting rod 19. An electromagnet 21 is arranged in a ring on the inner wall of the transmission box 4. A top spring 22 is provided between the electromagnet 21 and the attracted ring 20. A lifting ring 17 is fixedly connected to the bottom of the lifting rod 19. The lifting ring 17 is sleeved on the vibrating head 3. A top rod 18 is hinged to the bottom of the lifting ring 17. The end of the top rod 18 away from the lifting ring 17 is hinged to the swing rod 14.

[0042] By controlling the energization of electromagnet 21, electromagnet 21 generates magnetic force, which drives the suction ring 20 to descend. The suction ring 20 drives the lifting rod 19 to descend, the lifting rod 19 drives the lifting ring 17 to descend, the lifting ring 17 drives the top rod 18 to swing, and the top rod 18 drives the four sets of swing rods 14 to swing synchronously. The swing rods 14 swing towards the clamping rod 8, so that the swing rods 14 can closely contact the clamping rod 8, so that the vibration energy generated by the vibrating head 3 can be stably transmitted to the clamping rod 8, and the vibration transmission effect is good.

[0043] like Figure 4 As shown, in some embodiments, the swing arm 14 has a lifting hole inside, a telescopic rod 15 is slidably connected inside the lifting hole, and a telescopic spring 16 is provided between the telescopic rod 15 and the inner wall of the lifting hole.

[0044] By setting the telescopic rod 15, the swing rod 14 swings stably under the guidance of the telescopic rod 15, and can always be in stable contact with the clamping rod 8. When the telescopic rod 15 is fully compressed in the lifting hole, the swing rod 14 and the clamping rod 8 are vertically distributed, ensuring stable vibration transmission.

[0045] like Figure 4 As shown, in some embodiments, the telescopic rod 15 is designed with an inclination on the side near the clamping rod 8. This design facilitates the compression of the telescopic rod 15 within the swing rod 14, resulting in stable transmission.

[0046] like Figure 1 As shown, in some embodiments, an auxiliary handle 2 is provided on the outside of the vibrator 1. The auxiliary handle 2 makes it easy to lift and move the vibrator 1, making operation convenient.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stress reliever for machining aluminum alloy parts, comprising a vibrator (1), characterized in that, The output end of the vibrator (1) is provided with a vibrating head (3), and a sleeve (5) is sleeved on the outside of the vibrating head (3). A transmission box (4) is provided on the outside of the vibrator (1). A guide rod (6) is provided on the outer side of the transmission box (4). A clamping screw (7) corresponding to the guide rod (6) is rotatably installed on the outer side of the transmission box (4). A clamping rod (8) is threaded on the outer side of the clamping screw (7). A guide hole (9) is opened inside the clamping rod (8). The guide rod (6) passes through the guide hole (9). The transmission box (4) is equipped with a transmission mechanism inside. The transmission mechanism can convert the vibration of the vibrating head (3) into the driving force of the clamping screw (7). The sleeve (5) is connected to the transmission mechanism through the transmission wire rope (13). The sleeve (5) is equipped with a ring-shaped swing rod (14) that can swing automatically. The swing rod (14) is distributed correspondingly to the clamping rod (8).

2. The stress reliever for machining aluminum alloy parts according to claim 1, characterized in that, The transmission mechanism includes a fixed shaft (23) fixedly connected inside the transmission box (4), a winding wheel (24) rotatably mounted on the outside of the fixed shaft (23), a torsion spring (25) between the winding wheel (24) and the fixed shaft (23), a first transmission wheel (26) fixedly connected to the outside of the winding wheel (24), a drive wheel (27) rotatably mounted inside the transmission box (4) and fixedly connected to the clamping screw (7), a ratchet (28) rotatably mounted inside the drive wheel (27), a pawl (29) hinged to the inner wall of the drive wheel (27), a second transmission wheel (30) fixedly connected to the outside of the ratchet (28), and the second transmission wheel (30) meshing with the first transmission wheel (26).

3. The stress reliever for machining aluminum alloy parts according to claim 2, characterized in that, The radius of the first drive wheel (26) is greater than the radii of the reel (24) and the second drive wheel (30).

4. The stress reliever for machining aluminum alloy parts according to claim 3, characterized in that, The clamping rod (8) has a through hole inside, the clamping screw (7) passes through the through hole, and a clamping nut (10) is rotatably installed inside the through hole. A slot (11) is provided on the outer side of the clamping nut (10). A plug (12) that can be inserted into the slot (11) is inserted into the outer side of the clamping rod (8). The clamping screw (7) is threadedly connected to the clamping nut (10).

5. A stress reliever for machining aluminum alloy parts according to claim 1, characterized in that, The transmission box (4) is slidably connected to a lifting rod (19). The top of the lifting rod (19) is provided with a magnetically attracted ring (20). An electromagnet (21) is arranged in a ring on the inner wall of the transmission box (4). A top spring (22) is provided between the electromagnet (21) and the magnetically attracted ring (20). A lifting ring (17) is fixedly connected to the bottom of the lifting rod (19). The lifting ring (17) is sleeved on the vibrating head (3). A top rod (18) is hinged to the bottom of the lifting ring (17). The end of the top rod (18) away from the lifting ring (17) is hinged to the swing rod (14).

6. A stress reliever for machining aluminum alloy parts according to claim 5, characterized in that, The swing arm (14) has a lifting hole inside, and a telescopic rod (15) is slidably connected inside the lifting hole. A telescopic spring (16) is provided between the telescopic rod (15) and the inner wall of the lifting hole.

7. A stress reliever for machining aluminum alloy parts according to claim 6, characterized in that, The telescopic rod (15) is designed to be inclined on the side near the clamp (8).

8. A stress reliever for machining aluminum alloy parts according to any one of claims 1-7, characterized in that, An auxiliary handle (2) is provided on the outside of the vibrator (1).

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