Quick-change shot blasting tool

By designing quick-replacement shot peening tooling, the problem of poor adaptability of existing tooling when processing different parts is solved, the rapid replacement and adaptation of tooling is achieved, the production efficiency and equipment utilization rate are improved, and the production cost is reduced.

CN222843865UActive Publication Date: 2025-05-09SHAANXI FAST GEAR CO LTD
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Patent Information

Application Number
CN202421453783.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-24
Publication Date
2025-05-09
Estimated Expiration
2034-06-24

AI Technical Summary

Technical Problem

Due to the lack of versatility of existing shot peening tools, the tooling needs to be redesigned and manufactured each time different parts are processed, resulting in long production preparation time, low equipment operation efficiency and high production costs.

Method used

A quick-change shot peening tool is designed, including a top-down coaxial gland, a quick-change mandrel and a base mandrel that are arranged coaxially from top to bottom. The quick-change mandrel and the base mandrel can be separated and connected. By reasonably setting the limit table, guide rod and through-hole structures, the quick-change and adaptation of the tooling can be achieved.

Benefits of technology

It improves the adaptability of tooling and the production efficiency of shot peening, reduces equipment adjustment time and downtime, reduces production costs, and simplifies the tooling replacement process, reducing operational complexity and training costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The quick-change shot blasting tool comprises a gland, a quick-change core shaft and a base core shaft which are sequentially and coaxially arranged from top to bottom, and the quick-change core shaft and the base core shaft are detachably connected; a first limiting table is coaxially arranged close to the lower end of the quick-change mandrel, a second limiting table is coaxially arranged close to the lower end of the base mandrel, and a space for clamping a machined part is formed between the gland and the first limiting table / the second limiting table. Through reasonable arrangement of component structures, a machined part can be clamped by the gland after the quick-change mandrel and the base mandrel are connected, or the machined part can be directly clamped by the gland and the base mandrel after the quick-change mandrel is detached, so that the adaptability of a tool is improved, the production efficiency of shot blasting machining is improved, and the production cost is reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of shot peening tooling, and in particular relates to a quick-change shot peening tooling. Background Art

[0002] In mechanical manufacturing and surface treatment technology, shot peening is a common surface treatment method. In the shot peening process, high-speed steel shots are ejected to impact the surface of an object to change the surface morphology and physical properties and improve the material's fatigue resistance. However, most of the existing shot peening tools are special tools designed according to the structural characteristics of the processed parts, and they are not very versatile. Each time a new part is trial-produced, the tooling needs to be redesigned and manufactured, resulting in a long production preparation time. In addition, in daily production, when processing different parts, on-site operators also need to replace special tools that match the parts, resulting in low equipment operation efficiency and high production costs. Summary of the invention

[0003] In view of the above problems, the purpose of the utility model is to provide a quick-change shot peening tool, which solves the adaptability problem of the existing tool when processing different processed parts through reasonable arrangement of the component structure.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model includes:

[0005] A quick-change shot peening tool comprises a pressure cover, a quick-change mandrel and a base mandrel which are coaxially arranged in sequence from top to bottom, and the quick-change mandrel and the base mandrel are detachably connected; the quick-change mandrel is coaxially provided with a first limit platform near its lower end, and the base mandrel is coaxially provided with a second limit platform near its lower end, and a space for clamping a workpiece is provided between the pressure cover and the first limit platform / the second limit platform.

[0006] Furthermore, it also includes a guide rod coaxially penetrated on the pressure cover, and the quick-change core shaft is coaxially provided with a first center hole with an upper end opening and matching the radial structure of the guide rod.

[0007] Preferably, a first guide cone hole is coaxially provided at the upper end of the first center hole, the cross-section of the first guide cone hole is the same as that of the first center hole at the junction, and the cross-section of the first guide cone hole increases sequentially from bottom to top.

[0008] Preferably, at least one first through hole is provided between the lower end of the first center hole and the outer wall of the quick-change mandrel, and the axis of the first through hole extends horizontally or obliquely downward from the inside to the outside.

[0009] Preferably, a downwardly turned edge is provided below the first limiting platform along its circumference, and the inner periphery of the free end of the downwardly turned edge matches the outer periphery structure of the upper end of the base core shaft.

[0010] Preferably, at least two positioning holes are evenly distributed circumferentially on the upper end of the base core shaft, and each positioning hole is provided with a positioning pin connected to the quick-change core shaft; a second through hole is provided between the lower end of each positioning hole and the outer wall of the base core shaft, and the axis of the second through hole extends horizontally or obliquely downward from the inside to the outside.

[0011] Preferably, the base core shaft is coaxially provided with a second center hole with an upper end opening and matching the radial structure of the guide rod.

[0012] Preferably, a second guide cone hole is coaxially provided at the upper end of the second center hole, the second guide cone hole has the same cross section as the second center hole at the junction, and the cross section of the second guide cone hole increases sequentially from bottom to top.

[0013] Preferably, the lower end of the second center hole extends to below the second limit platform, and at least a third through hole is provided between the lower end of the second center hole and the outer wall of the base core shaft, and the axis of the third through hole extends horizontally or obliquely downward from the inside to the outside.

[0014] Preferably, a boss is coaxially provided below the gland, and the roughness of the boss end surface is greater than Ra6.4.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] (1) The quick-change shot peening tool of the utility model can connect the quick-change mandrel and the base mandrel and clamp the processed parts with the pressure cover, or remove the quick-change mandrel and directly clamp the processed parts with the pressure cover and the base mandrel, through the reasonable arrangement of the component structure, thereby improving the adaptability of the tool, improving the production efficiency of the shot peening process, and reducing the production cost.

[0017] (2) The quick-change shot peening tooling of the utility model greatly shortens the equipment adjustment time during application, thereby reducing the downtime of the shot peening machine and improving equipment utilization; the ability to quickly replace the tooling means that the production line can more flexibly respond to the processing needs of a variety of different processed parts and better adapt to changes in market demand; the simplified tooling replacement process can reduce the complexity of operation, allowing employees to master the replacement skills in a shorter time, reducing the difficulty of operation and training costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of the quick-change shot peening tooling of the utility model;

[0020] Figure 2 for Figure 1 Structural schematic diagram of the middle guide rod and the gland;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the quick-change mandrel and the positioning pin;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the core shaft of the middle base;

[0023] The symbols in the figure represent:

[0024] 1. Guide rod, 2. Pressure cover, 3. Quick-change mandrel, 4. Positioning pin, 5. Base mandrel.

[0025] 21 boss;

[0026] 31 first center hole, 32 first guide cone hole, 33 first through hole, 34 first limit platform; 35 lower turning edge;

[0027] 51 is a positioning hole, 52 is a second through hole, 53 is a third through hole, 54 is a thread, 55 is a second guide cone hole, 56 is a second center hole, and 57 is a second limiting platform. DETAILED DESCRIPTION

[0028] The utility model is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the utility model.

[0029] It should be noted that the directional terms mentioned in this article, such as "inner cavity", "inner periphery", "inner wall" and "outside", are consistent with the specific directions on the paper of the drawings in the specification or the corresponding directions of the space shown in the drawings; all components and equipment in the utility model, unless otherwise specified, are all components and equipment known in the prior art.

[0030] Example

[0031] The present embodiment discloses a quick-change shot peening tool, comprising a pressure cover 2, a quick-change mandrel 3 and a base mandrel 5 which are coaxially arranged in sequence from top to bottom, and the quick-change mandrel 3 and the base mandrel 5 are detachably connected; the quick-change mandrel 3 is coaxially provided with a first limit platform 34 near its lower end, and the base mandrel 5 is coaxially provided with a second limit platform 57 near its lower end, and the space between the pressure cover 2 and the first limit platform 34 / the second limit platform 57 is for clamping the processed parts;

[0032] Its function is: since the quick-change mandrel 3 and the base mandrel 5 can be detachably connected, when in use, it is selected whether to remove the quick-change mandrel 3 according to the specifications of different processed parts. The quick-change mandrel 3 and the base mandrel 5 can be connected and then the processed parts can be clamped with the pressure cover 2, or the quick-change mandrel 3 can be removed and then the processed parts can be clamped directly by the pressure cover 2 and the base mandrel 5, thereby improving the adaptability of the tooling, improving the production efficiency of shot peening processing, and reducing production costs.

[0033] The equipment adjustment time is greatly shortened when the entire tooling is used, thereby reducing the downtime of the shot peening machine and improving equipment utilization; the ability to quickly replace tooling means that the production line can more flexibly respond to the processing needs of a variety of different processed parts and better adapt to changes in market demand; the simplified tooling replacement process can reduce the complexity of operations, allowing employees to master replacement skills in a shorter time, reducing operating difficulty and training costs.

[0034] The outer periphery of the lower end of the base core shaft 5 is a thread 54 for connection and fixation with the shot blasting equipment.

[0035] The tooling of this embodiment uses high-performance alloy tool steel Cr12MoV as the manufacturing material, and controls the surface hardness in the range of 60HRC-65HRC. The selection of this special material not only gives the tooling high hardness characteristics, but also significantly improves its wear resistance and impact resistance. It shows excellent service performance in practical applications, effectively prolongs its fatigue life, and ensures long-term stable operation.

[0036] In this embodiment, the height and diameter of the quick-change mandrel 3 and the height and diameter of the base mandrel 5 are processed into different sizes according to the size of the processed parts, so as to choose whether to remove the quick-change mandrel 3 according to the specifications of different processed parts.

[0037] The gland 2 disclosed in this embodiment has a boss 21 coaxially disposed below it, and the end surface roughness of the boss 21 is greater than Ra6.4, which increases the sliding resistance between the gland and the parts and ensures that the parts rotate synchronously with the gland during the processing.

[0038] The upper end of the base spindle 5 disclosed in the present embodiment is evenly distributed with at least two positioning holes 51 in the circumferential direction, and each positioning hole 51 is provided with a positioning pin 4 connected to the quick-change spindle 3, that is, the quick-change spindle 3 and the base spindle 5 are connected by the positioning pin 4; the operation is simple and safe, and by reducing the operator's manual operation when replacing the tooling, the operation risk can be reduced and the work safety can be improved.

[0039] A second through hole 52 is provided between the lower end of each positioning hole 51 and the outer wall of the base core shaft 5 , and the axis of the second through hole 52 extends horizontally or obliquely downward from the inside to the outside, so as to discharge the steel shot that may accidentally fall into each positioning hole 51 .

[0040] Specifically, it also includes a guide rod 1 coaxially penetrated on the gland 2, and a quick-change mandrel 3 coaxially provided with a first center hole 31 with an upper end opening and matching the radial structure of the guide rod 1;

[0041] Its function is: through the cooperation between the guide rod 1 and the first center hole 31, the pressure cover 2 and the quick-change mandrel 3 are ensured to be coaxial, thereby ensuring that the pressure cover 2 is in full contact with the surface of the processed part and the part does not move in the axial direction during the processing.

[0042] The first center hole 31 disclosed in this embodiment is coaxially provided with a first guide cone hole 32 at its upper end. The cross section of the first guide cone hole 32 is the same as that of the first center hole 31, and the cross section of the first guide cone hole 32 increases from bottom to top. In order to facilitate the alignment of the guide rod 1 and smooth entry into the first center hole 31, the angle of the first guide cone hole 32 in this embodiment is controlled between 30° and 45°, and the inner wall roughness of the first guide cone hole 32 is not greater than Ra0.8;

[0043] At least one first through hole 33 is provided between the lower end of the first center hole 31 and the outer wall of the quick-change mandrel 3. The axis of the first through hole 33 extends horizontally or obliquely downward from the inside to the outside, so as to discharge the steel shot that may accidentally fall into the first center hole 31.

[0044] A downwardly turned edge 35 is provided along the circumference below the first limiting platform 34 , and the inner circumference of the free end of the downwardly turned edge 35 matches the outer circumferential structure of the upper end of the base core shaft 5 . The downwardly turned edge 35 limits the base core shaft 5 to protect the upper end of the base core shaft 5 and prevents steel shots from entering the second center hole 56 of the base core shaft 5 .

[0045] The base spindle 5 disclosed in this embodiment is coaxially provided with a second center hole 56 with an upper end opening and matching the radial structure of the guide rod 1, so that when the workpiece is clamped directly by the gland 2 and the base spindle 5, the guide rod 1 cooperates with the second center hole 56 to ensure that the gland 2 is coaxial with the base spindle 5, thereby ensuring that the gland 2 is in full contact with the surface of the workpiece, and the workpiece does not move in the axial direction during the processing;

[0046] A second guide cone hole 55 is coaxially disposed at the upper end of the second center hole 56. The cross-section of the second guide cone hole 55 and the second center hole 56 are the same, and the cross-section of the second guide cone hole 55 increases from bottom to top. In order to facilitate the alignment of the guide rod 1 and smoothly enter the second center hole 56, the angle of the second guide cone hole 55 in this embodiment is controlled between 30° and 45°, and the inner wall roughness of the second guide cone hole 55 is not greater than Ra0.8;

[0047] The lower end of the second center hole 56 extends to below the second limit platform 57, and at least one third through hole 53 is provided between the lower end of the second center hole 56 and the outer wall of the base core shaft 5. The axis of the third through hole 53 extends horizontally or obliquely downward from the inside to the outside to discharge steel shots that may accidentally fall into the second center hole 56.

[0048] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0049] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0050] In addition, the various different implementation modes disclosed in this solution may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the content invented by the present disclosure.

Claims

1. A quick-change shot peening tool, characterized in that: It comprises a gland (2), a quick-change mandrel (3) and a base mandrel (5) which are coaxially arranged in sequence from top to bottom, wherein the quick-change mandrel (3) and the base mandrel (5) are detachably connected; The quick-change mandrel (3) is coaxially provided with a first limit platform (34) near its lower end, and the base mandrel (5) is coaxially provided with a second limit platform (57) near its lower end. A space for clamping the processed part is provided between the pressure cover (2) and the first limit platform (34) / the second limit platform (57).

2. The quick-change shot peening tool as claimed in claim 1, characterized in that: It also includes a guide rod (1) coaxially inserted into the pressure cover (2), and the quick-change core shaft (3) is coaxially provided with a first center hole (31) with an upper end opening and matching the radial structure of the guide rod (1).

3. The quick-change shot peening tool as claimed in claim 2, characterized in that: A first guide cone hole (32) is coaxially disposed at the upper end of the first center hole (31); the cross-section of the first guide cone hole (32) and the first center hole (31) is the same at the junction, and the cross-section of the first guide cone hole (32) increases from bottom to top.

4. The quick-change shot peening tool as claimed in claim 3, characterized in that: At least one first through hole (33) is provided between the lower end of the first central hole (31) and the outer wall of the quick-change core shaft (3), and the axis of the first through hole (33) extends horizontally or obliquely downward from the inside to the outside.

5. The quick-change shot peening tool as claimed in claim 4, characterized in that: A downwardly turned edge (35) is provided below the first limiting platform (34) along its circumference, and the inner periphery of the free end of the downwardly turned edge (35) matches the outer periphery structure of the upper end of the base core shaft (5).

6. The quick-change shot peening tool as described in any one of claims 2 to 5, characterized in that: At least two positioning holes (51) are evenly arranged in the circumferential direction on the upper end of the base spindle (5), and each positioning hole (51) is provided with a positioning pin (4) connected to the quick-change spindle (3); A second through hole (52) is provided between the lower end of each positioning hole (51) and the outer wall of the base core shaft (5), and the axis of the second through hole (52) extends horizontally or obliquely downward from the inside to the outside.

7. The quick-change shot peening tool as claimed in claim 6, characterized in that: The base core shaft (5) is coaxially provided with a second center hole (56) with an upper end opening and matching the radial structure of the guide rod (1).

8. The quick-change shot peening tool as claimed in claim 7, characterized in that: A second guide cone hole (55) is coaxially disposed at the upper end of the second center hole (56); the second guide cone hole (55) has the same cross section as the second center hole (56), and the cross section of the second guide cone hole (55) increases from bottom to top.

9. The quick-change shot peening tool as claimed in claim 8, characterized in that: The lower end of the second center hole (56) extends to below the second limit platform (57), and at least one third through hole (53) is provided between the lower end of the second center hole (56) and the outer wall of the base core shaft (5), and the axis of the third through hole (53) extends horizontally or obliquely downward from the inside to the outside.

10. The quick-change shot peening tool as claimed in claim 1, characterized in that: A boss (21) is coaxially arranged below the gland (2), and the end surface roughness of the boss (21) is greater than Ra6.4.