A shot peening device for complex surfaces with tiny apertures
By designing a shot peening reinforcement device suitable for micro-apertures and complex surfaces, the combination of a quick-change shot blasting head and a shot peening pipe is used to solve the problem of insufficient shot peening reinforcement capability in the prior art, and efficient shot peening strengthening of complex surfaces is achieved.
Patent Information
- Application Number
- CN202421307193.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The existing shot peening strengthening technology is difficult to effectively deal with inner holes of micro-pore sizes and complex surfaces, resulting in weak shot peening strengthening capabilities.
A shot blasting reinforcement device for complex surfaces of micro-pore sizes is designed, using quick-replacement shot blasting heads and shot blasting pipes. By replacing shot blasting pipes of different diameters and materials and quick-replacement shot blasting heads, it is suitable for various micro-pore sizes and complex surfaces.
Full-surface shot peening strengthening of micro-pore sizes and complex surfaces is achieved, the shot peening strengthening ability is improved, and the stability and consistency of the device are ensured.
Smart Images
Figure CN222726434U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shot peening, in particular to a shot peening strengthening device for a micro-aperture complex surface. Background Art
[0002] Shot peening, also known as shot peening strengthening, is one of the effective methods to reduce part fatigue and increase life. Shot peening is to spray a high-speed projectile stream onto the surface of the part to cause plastic deformation of the surface of the part and form a strengthening layer of a certain thickness. A higher residual stress is formed in the strengthening layer. Due to the existence of compressive stress on the surface of the part, part of the stress can be offset when the part is under load, thereby improving the fatigue strength of the part.
[0003] However, shot peening of small inner holes or inner holes with relatively large depths in parts has always been a difficult problem for shot peening, and the shot peening process requires that all parts surfaces be strengthened. Because the outer wall straight nozzle with small aperture cannot directly enter the small hole for shot peening, when the aperture is too small and the aperture surface is complex, the nozzle cannot meet the requirements of shot peening all surfaces of the inner hole, and the shot peening ability is weak. Therefore, we propose a new shot peening device for small aperture complex surfaces. Utility Model Content
[0004] The main purpose of the utility model is to provide a device for shot peening a complex surface with a small aperture, which can effectively solve the problems in the background technology.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a shot peening strengthening device for a complex surface with a tiny aperture, comprising a shot peening gun, a shot peening port is provided at one end of the shot peening gun, an air inlet is provided at the other end of the shot peening gun, a shot inlet is provided at the top of the shot peening gun, a bearing seat is provided in the inner cavity of the shot peening gun, one side of the bearing seat is connected to the output end of the motor, a quick-change shot peening head is clamped at the other end of the bearing seat, the limit cover is sleeved on the quick-change shot peening head, a shot peening tube is fixedly connected to one side of the quick-change shot peening head, and a plurality of spray holes are evenly opened on the shot peening tube.
[0006] As a further description of the above technical solution, an insert block is fixedly connected to one end of the bearing seat, a slot is opened at one end of the quick-change shot peening head, and the insert block cooperates with the slot, and the cross-sections of the insert block and the slot are both hexagonal.
[0007] As a further description of the above technical solution, the side wall of the shot peening port is provided with a first thread, the side wall of the inner cavity of the limiting cover is provided with a second thread, and the first thread is meshedly connected with the second thread.
[0008] As a further description of the above technical solution, the side wall of the quick-change shot peening head is fixedly connected to a limiting ring, the side wall of the inner cavity of the shot peening port is provided with a limiting groove, and the limiting ring is engaged and connected with the limiting groove.
[0009] As a further description of the above technical solution, a through hole is opened on one side of the limit cover, and the end with a smaller diameter of the quick-change shot peening head slides through the through hole to the outside.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] 1. By setting a bearing seat, a quick-change shot peening head, a shot peening tube, etc., and by clamping the insert on the bearing seat with the slot in the inner cavity of the quick-change shot peening head, and then making the limit ring clamp into the limit groove and slidably connected with the limit groove, different quick-change shot peening heads can be replaced according to the aperture of the required shot peening and the complexity of the inner surface of the hole, and then the limit cover is set on the outside of the quick-change shot peening head, and the thread one and the thread two are tightened, so that the quick-change shot peening head can be further limited to prevent the motor from driving the bearing seat to rotate, thereby driving the quick-change shot peening head to rotate and peening the shot. When the quick-change shot peening head is peened, the quick-change shot peening head falls off from the inner cavity of the shot peening port, which greatly improves the installation integrity of the shot peening gun and the quick-change shot peening head, making it more stable to use. When peening with the quick-change shot peening head, the shot peening gun can deliver high-pressure shots to the spray hole of the shot peening tube, and spray the high-pressure shot mist outward from the spray hole.
[0012] 2. By setting up quick-change shot peening heads, shot peening tubes, spray holes, etc., and by replacing different quick-change shot peening heads, you can freely choose shot peening tubes of different diameters and different soft and hard materials, which is convenient for various tiny apertures and complex surfaces in different apertures. All surfaces inside the hole can be shot peened, and the shot peening strengthening ability is strong. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of a shot peening device for complex surfaces with small apertures proposed by the utility model;
[0014] Figure 2 This is a schematic diagram of the explosion structure of a device for shot peening a complex surface with a small aperture proposed by the utility model;
[0015] Figure 3 This is a schematic diagram of the exploded structure from another perspective of a shot peening strengthening device for a complex surface with a tiny aperture proposed by the utility model.
[0016] In the figure: 1. Shot peening gun; 2. Shot peening port; 3. Shot inlet; 4. Air inlet; 5. Limit cover; 6. Bearing seat; 7. Quick-change shot peening head; 8. Shot peening tube; 9. Spray hole; 10. Thread one; 11. Thread two; 12. Limit ring; 13. Limit groove; 14. Insert block; 15. Slot. DETAILED DESCRIPTION
[0017] In order to make the technical means, creative features and purpose effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0018] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the words "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0020] See also Figure 1-3 The utility model provides a technical solution: a device for shot peening and strengthening a complex surface with a tiny aperture, comprising a shot peening gun 1, a shot peening port 2 being provided at one end of the shot peening gun 1, an air inlet 4 being provided at the other end of the shot peening gun 1, a shot inlet 3 being provided at the top of the shot peening gun 1, a bearing seat 6 being provided in the inner cavity of the shot peening gun 1, one side of the bearing seat 6 being connected to the output end of the motor, a quick-change shot peening head 7 being clamped at the other end of the bearing seat 6, a limit cover 5 being sleeved on the quick-change shot peening head 7, a shot peening tube 8 being fixedly connected at one side of the quick-change shot peening head 7, a plurality of spray holes 9 being evenly provided on the shot peening tube 8, by replacing different quick-change shot peening heads 7, shot peening tubes 8 of different diameters and different soft and hard materials can be freely selected, which is convenient for application to various tiny apertures and complex surfaces in different apertures, and all surfaces inside the hole can be shot peened, and the shot peening strengthening capability is strong.
[0021] Specifically, Figure 1 As shown, a through hole is opened on one side of the limit cover 5, and the end of the quick-change shot peening head 7 with a smaller diameter slides through the through hole to the outside, so that the limit cover 5 can further limit the quick-change shot peening head 7 to prevent the motor from driving the bearing seat 6 to rotate, thereby driving the quick-change shot peening head 7 to rotate and peen the shots, and the quick-change shot peening head 7 falls off from the inner cavity of the shot peening port 2.
[0022] Specifically, Figure 2As shown, the side wall of the quick-change shot peening head 7 is fixedly connected with a limiting ring 12, and the side wall of the inner cavity of the shot peening port 2 is provided with a limiting groove 13, and the limiting ring 12 is engaged and connected with the limiting groove 13. When the quick-change shot peening head 7 is replaced, the quick-change shot peening head 7 is inserted into the inner cavity of the shot peening port 2, so that the limiting ring 12 is engaged with the limiting groove 13 and slidably connected with the limiting groove 13, so that the quick-change shot peening head 7 can be limited.
[0023] Specifically, Figure 3 As shown, an insert block 14 is fixedly connected to one end of the bearing seat 6, and a slot 15 is opened at one end of the quick-change shot peening head 7, and the insert block 14 matches the slot 15. The cross-sections of the insert block 14 and the slot 15 are both hexagonal, which is convenient for better clamping, so that the bearing seat 6 drives the quick-change shot peening head 7 to rotate more smoothly. When replacing the quick-change shot peening head 7, the quick-change shot peening head 7 is inserted into the inner cavity of the shot peening port 2, and the insert block 14 on the bearing seat 6 is clamped with the slot 15 in the inner cavity of the quick-change shot peening head 7.
[0024] The side wall of the shot peening port 2 is provided with a thread 10, and the side wall of the inner cavity of the limiting cover 5 is provided with a thread 2 11, and the thread 10 is meshed with the thread 2 11. After the quick-change shot peening head 7 is inserted into the inner cavity of the shot peening port 2, the limiting cover 5 is sleeved on the outside of the quick-change shot peening head 7, and the thread 10 and the thread 2 11 are tightened, so that the quick-change shot peening head 7 can be further limited.
[0025] It should be noted that the utility model is a device for shot peening and strengthening a complex surface with a small aperture. When replacing the quick-change shot peening head 7, the quick-change shot peening head 7 is inserted into the inner cavity of the shot peening port 2, and the insert block 14 on the bearing seat 6 is clamped with the slot 15 in the inner cavity of the quick-change shot peening head 7, and then the limiting ring 12 is clamped into the limiting groove 13 and slidably connected with the limiting groove 13, so that the quick-change shot peening head 7 can be limited, so that different quick-change shot peening heads 7 can be replaced according to the aperture of the required shot peening and the complexity of the inner surface of the hole. Then the limiting cover 5 is sleeved on the outside of the quick-change shot peening head 7, and the thread 1 10 and the thread 2 11 are tightened, so that the quick-change shot peening head 7 can be further limited. The motor is driven to rotate the bearing seat 6, thereby driving the quick-change shot peening head 7 to rotate and peen the shots, and the quick-change shot peening head 7 is prevented from falling off from the inner cavity of the shot peening port 2. The installation integrity of the shot peening gun 1 and the quick-change shot peening head 7 is greatly improved, making its use more stable. When peening the shots through the quick-change shot peening head 7, the shot peening gun 1 can deliver the high-pressure shots to the spray hole 9 of the shot peening tube 8, and spray the high-pressure shot mist outward from the spray hole 9.
[0026] By replacing different quick-change shot peening heads 7, shot peening tubes 8 of different diameters and different soft and hard materials can be freely selected, which is convenient for application to various tiny apertures and complex surfaces in different apertures. All surfaces inside the hole can be shot peened, and the shot peening strengthening ability is strong.
[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A device for shot peening a complex surface with a small aperture, comprising a shot peening gun (1), characterized in that: The shot peening gun (1) is provided with a shot peening port (2) at one end, an air inlet (4) at the other end, a shot inlet (3) at the top of the shot peening gun (1), a bearing seat (6) at the inner cavity of the shot peening gun (1), one side of the bearing seat (6) is connected to the output end of the motor, a quick-change shot peening head (7) is clamped at the other end of the bearing seat (6), a limit cover (5) is sleeved on the quick-change shot peening head (7), one side of the quick-change shot peening head (7) is fixedly connected to a shot peening tube (8), and a plurality of spray holes (9) are evenly opened on the shot peening tube (8).
2. A shot peening device for complex surfaces with small apertures according to claim 1, characterized in that: One end of the bearing seat (6) is fixedly connected with an insert block (14), one end of the quick-change shot peening head (7) is provided with a slot (15), and the insert block (14) and the slot (15) are matched, and the cross-sections of the insert block (14) and the slot (15) are both hexagonal.
3. The device for shot peening of complex surfaces with micro-apertures according to claim 1, characterized in that: The side wall of the shot blasting port (2) is provided with a first thread (10), and the side wall of the inner cavity of the limiting cover (5) is provided with a second thread (11), and the first thread (10) is meshedly connected with the second thread (11).
4. The device for shot peening of complex surfaces with small apertures according to claim 1, characterized in that: The side wall of the quick-change shot peening head (7) is fixedly connected to a limiting ring (12), the inner cavity side wall of the shot peening port (2) is provided with a limiting groove (13), and the limiting ring (12) is snap-fitted and connected to the limiting groove (13).
5. The device for shot peening of complex surfaces with micro-apertures according to claim 1, characterized in that: A through hole is formed on one side of the limit cover (5), and the end of the quick-change shot peening head (7) with a smaller diameter slides through the through hole to the outside.