Nozzle and shot peening strengthening device

Abstract

The utility model belongs to the technical field of part machining, and discloses a nozzle and a shot peening strengthening device. The spray nozzle comprises a spray nozzle body, a spray channel is formed in the spray nozzle body, the spray nozzle body is installed on the shot launcher, and the spray channel is communicated with the output end of the shot launcher. An annular size marking line is arranged at the end, away from the projectile launcher, of the nozzle body. Before each shot peening strengthening operation, the size marking lines are checked to ensure that the size marking lines are complete; in the operation process, it can be stipulated that after each procedure is finished, the size marking line is checked, whether the size marking line is changed or not is observed, and if it is found that notches and incomplete rings appear on the size marking line, strengthening operation needs to be stopped, and the nozzle needs to be replaced in time; when the inner wall of the spraying channel is close to the size marking line, the nozzle can be replaced in advance. According to the nozzle, the size of the nozzle can be regularly monitored and checked, so that the quality and the consistency of a shot peening strengthening process are ensured; and meanwhile, the size of the nozzle does not need to be measured manually, so that the checking accuracy and the checking efficiency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of part processing, especially relates to a nozzle and shot peening device. BACKGROUND

[0002] Shot peening is a surface strengthening process widely used in manufacturing. A large number of pellets are sprayed at high speed onto the surface of metal parts by compressed air or other power sources to improve the fatigue strength and wear resistance of metal parts. As a key component in the shot peening device, the size and shape of the nozzle can directly affect the spraying effect and coverage of the shot. The size of the nozzle needs to be monitored regularly to confirm the wear of the nozzle.

[0003] Currently, in the production and manufacturing process of metal parts, the size of the nozzle is mostly measured by conventional measuring tools. The accuracy of the measurement result is greatly related to the operation of the measuring personnel. At the same time, manual measurement is low in efficiency and time-consuming and laborious. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a nozzle and shot peening device, which can quickly confirm the wear of the nozzle, facilitate subsequent timely replacement of the nozzle, and ensure the operation quality of shot peening.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] On the one hand, a nozzle is provided for spraying pellets onto the surface of a metal workpiece, comprising a nozzle body, a spraying channel is formed on the nozzle body, the nozzle body is installed on a pellet launcher, and the spraying channel is connected to the output end of the pellet launcher; a size scale is arranged at the end of the nozzle body away from the pellet launcher, and the size scale is annular.

[0007] As an optional solution of the nozzle, the distance between the size scale and the wall surface of the spraying channel in the radial direction of the nozzle body is 10% of the diameter size of the spraying channel.

[0008] As an optional solution of the nozzle, the outer layer of the nozzle body is made of aluminum alloy material.

[0009] As an optional solution of the nozzle, the inner layer of the nozzle body is made of boron carbide material.

[0010] As an optional solution of the nozzle, a limiting part is arranged on the outer wall of the nozzle body.

[0011] As an optional solution of the nozzle, an anti-slip structure is arranged on the limiting part.

[0012] As an optional solution of the nozzle, a color developing pigment is coated on the size scale.

[0013] As an alternative to the nozzle, the size mark is provided with a text annotation.

[0014] In another aspect, a shot peening device is provided, comprising a projectile launcher and the nozzle as described above, the nozzle being detachably arranged at the output end of the projectile launcher.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The utility model provides a nozzle and shot peening device, the nozzle includes nozzle main part, is set up with the injection channel on the nozzle main part, the nozzle main part is installed on the projectile launcher, and the injection channel is communicated in the output end of projectile launcher. The one end of nozzle main part is provided with size mark away from the projectile launcher, and the size mark is annular. Before each shot peening operation, check the size mark of nozzle main part end, ensure that the size mark is complete and clear to see, in the operation process, can be regulated to check the size mark after each program ends, observe whether the size mark has the change, if the size mark appears the notch, is not the complete annular, then need to stop the strengthening operation and replace the nozzle in time, or when finding the injection channel inner wall close to the size mark, can also replace the nozzle in advance. The nozzle can realize the periodical monitoring and check of the nozzle size to ensure the quality and consistency of shot peening process, and the nozzle size can be measured manually, and the check accuracy and the inspection efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the structure schematic diagram of the nozzle provided by the embodiment of the utility model specific implementation mode;

[0018] Fig. 2 It is the side view of the nozzle provided by the embodiment of the utility model specific implementation mode.

[0019] In the drawing:

[0020] 1, nozzle main part, 10, injection channel;

[0021] 2, size mark, 3, limiting portion. DETAILED DESCRIPTION

[0022] The utility model will be further described in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limited to the utility model. In addition, it needs to be explained that in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.

[0023] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through the indirect connection of intermediate medium, can be two element internal communication or two element mutual action relation.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0024] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the direct contact of the first and second features, also can include the contact of the first and second features not direct contact but through the contact between other features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0025] In the description of the embodiment, the orientation or position relationship of the terms "on", "under", "right" and the like is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0026] The technical scheme of the utility model is further illustrated below by combining with the drawings and through specific embodiments.

[0027] As Figs. 1-2As shown, the embodiment provides a nozzle for spraying a shot to a surface of a metal workpiece. The nozzle comprises a nozzle body 1, a spraying channel 10 is formed on the nozzle body 1, the nozzle body 1 is installed on a shot launcher, and the spraying channel 10 is communicated with an output end of the shot launcher. An end of the nozzle body 1 away from the shot launcher is provided with a size mark 2, and the size mark 2 is annular. Before each shot peening operation, the size mark 2 at the end of the nozzle body 1 is checked to ensure that the size mark 2 is complete and clearly visible; during the operation, the size mark 2 can be checked after each program to observe whether the size mark 2 changes, if the size mark 2 has a gap and is not a complete annular, the shot peening operation needs to be stopped and the nozzle needs to be replaced in time; or when the inner wall of the spraying channel 10 approaches the size mark 2, the nozzle can also be replaced in advance. The nozzle can realize periodic monitoring and checking of the size of the nozzle to ensure the quality and consistency of the shot peening process; at the same time, manual measurement of the size of the nozzle is not required, which can effectively improve the checking accuracy and testing efficiency.

[0028] Optionally, along the radial direction of the nozzle body 1, the distance between the size mark 2 and the wall surface of the spraying channel 10 is 10% of the diameter size of the nozzle channel 10. According to the relevant standard, when the nozzle is worn to 10% of the diameter size of the nozzle channel 10, it has approached the upper limit of the process requirement, and the nozzle needs to be replaced to ensure the quality of subsequent shot peening. Alternatively, in other embodiments, the distance between the size mark 2 and the wall surface of the spraying channel 10 can also be 5%, 15% or 20% of the diameter size of the nozzle channel 10, and the position of the size mark 2 can be flexibly set according to the requirements, which is not specifically limited here.

[0029] Specifically, the size mark 2 can be a mark set after the nozzle body 1 is manufactured; or it can be a ring-shaped part embedded in the nozzle body 1 during the manufacturing process of the nozzle, when the nozzle body 1 is worn to expose part of the ring-shaped part, the nozzle needs to be replaced in time.

[0030] Optionally, the size mark 2 is coated with a color developing pigment to be more easily distinguished visually, thereby facilitating the operator to confirm whether the size mark 2 is complete and clearly visible, thereby improving the checking efficiency. Exemplarily, the color developing pigment is ink, paint or coating, etc.

[0031] Alternatively, the area between the edge of the nozzle channel 10 and the size mark 2 can also be coated with a color developing pigment. When the part coated with the color developing pigment is all worn out, it indicates that the nozzle needs to be replaced.

[0032] Optionally, the size mark 2 is provided with a text mark, and the text mark is used to mark that the size mark 2 is a "size mark", so as to facilitate the operator to better understand and use the nozzle.

[0033] Optionally, the outer layer of the nozzle body 1 is made of aluminum alloy material, which has good heat conduction performance and can quickly dissipate the heat generated by the nozzle during operation. In shot peening operation, the nozzle body 1 may generate heat due to friction with high-speed projectiles and impact of the projectiles. Timely heat dissipation can prevent the nozzle body 1 from overheating, which may cause material performance degradation, deformation or even damage, and help maintain the dimensional accuracy and performance stability of the nozzle body 1. At the same time, the density of aluminum alloy is about one-third of that of general steel. Using aluminum alloy as the outer layer material of the nozzle body 1 can significantly reduce the overall weight of the nozzle body 1, making it easier to handle and operate during installation, which helps to reduce labor intensity and improve installation efficiency.

[0034] Optionally, the inner layer of the nozzle body 1 is made of boron carbide material. The Mohs hardness of boron carbide is as high as 9.3, second only to diamond and cubic boron nitride. Using boron carbide material in the inner layer of the nozzle body 1 can effectively resist the erosion and wear of high-speed projectiles or spraying media, greatly extending the service life of the nozzle, reducing the problems of nozzle aperture enlargement and shape change caused by wear, and ensuring the long-term stability of the spraying accuracy and effect of the nozzle. At the same time, in processes such as shot peening that require high pressure and high speed spraying, the boron carbide inner layer can withstand frequent impact and friction, maintain the original shape and size of the nozzle body 1, keep the sprayed projectiles or media at a stable speed and direction, ensure the consistency and uniformity of the shot peening effect, and improve the processing quality and efficiency.

[0035] Optionally, the outer wall of the nozzle body 1 is provided with a limiting portion 3. The shot peening device is provided with a clamping portion which is clamped to the outer circumferential side of the limiting portion 3 to ensure the stability of the nozzle body 1. Specifically, in this embodiment, the limiting portion 3 is a fixed ring protruding from the outer wall of the nozzle body 1.

[0036] Further, the limiting portion 3 is provided with an anti-slip structure. Specifically, the anti-slip structure is an anti-slip pad such as a rubber pad provided on the side of the limiting portion 3 facing the clamping portion; or the anti-slip structure is an anti-slip protrusion provided on the side of the limiting portion 3 facing the clamping portion. The anti-slip protrusion can be a point-shaped protrusion or a protrusion with any shape of pattern, which functions to increase the contact friction between the clamping portion and the limiting portion 3 and improve stability. Its specific form is referred to the prior art, which is not specifically limited in this embodiment as long as it can increase the friction.

[0037] In addition, the embodiment further provides a shot peening device, comprising a projectile launcher and the nozzle, the nozzle is detachably arranged at the output end of the projectile launcher, facilitating installation, and facilitating subsequent disassembly and replacement. Specifically, the nozzle can be threadedly connected to the output end of the projectile launcher, or can be flange connected or quick plug connected to the output end of the projectile launcher, and the specific connection structure and form refer to the prior art, which will not be described here. The shot peening device has all the beneficial effects of the nozzle, which will not be described here.

[0038] Specifically, in the embodiment, the output end of the projectile launcher is provided with a mounting seat, the nozzle body 1 is arranged on the mounting seat, and the limiting portion 3 abuts against one end of the mounting seat away from the output end of the projectile launcher.

[0039] More specifically, the outer layer of the mounting seat is made of an aluminum alloy material, and the inner layer is made of a boron carbide material.

[0040] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, readjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A nozzle for projecting a projectile to a surface of a metal workpiece, characterized by, The nozzle body (1) is provided with a jet channel (10), the nozzle body (1) is installed on a projectile launcher, and the jet channel (10) is communicated with the output end of the projectile launcher; the nozzle body (1) is provided with a size scale (2) at the end away from the projectile launcher, and the size scale (2) is annular.

2. The nozzle of claim 1, wherein In the radial direction of the nozzle body (1), the distance between the size scale (2) and the wall surface of the jet channel (10) is 10% of the diameter of the jet channel (10).

3. The nozzle of claim 1, wherein The outer layer of the nozzle body (1) is made of an aluminum alloy material.

4. The nozzle of claim 1, wherein The inner layer of the nozzle body (1) is made of a boron carbide material.

5. The nozzle of claim 1, wherein, The outer wall of the nozzle body (1) is provided with a limiting portion (3).

6. The nozzle of claim 5, wherein, The limiting portion (3) is provided with an anti-skid structure.

7. A nozzle according to any one of claims 1 to 6, wherein The size scale (2) is coated with a color developing pigment.

8. A nozzle according to any one of claims 1 to 6, wherein The size scale (2) is provided with a text annotation.

9. A shot peening device, characterized by The nozzle body (1) is provided with a jet channel (10), the nozzle body (1) is installed on a projectile launcher, and the jet channel (10) is communicated with the output end of the projectile launcher; the nozzle body (1) is provided with a size scale (2) at the end away from the projectile launcher, and the size scale (2) is annular.

Images