Inner hole knurling axial rolling tool body

Abstract

The utility model discloses a rolling tool body, belongs to the technical field of knurling tools, and particularly relates to an inner hole knurling axial rolling tool body which comprises an upper cover plate, a middle plate, a shell, a tail handle and a knurling assembly. The knurling assembly is installed on the middle plate, the upper cover plate is fixedly installed on the knurling assembly, the shell is matched with the bottom of the middle plate and the knurling assembly, the tail handle is installed at the bottom of the shell, and the shell rotates to drive the knurling assembly to rotate. And the requirements of more stable size, improved quality and reduced cost are met through high tooth profile precision, meanwhile, the rolling range is adjustable, the production efficiency is improved, and the cost of a single piece is reduced.

Description

Technical Field

[0001] The utility model discloses a rolling tool body, belongs to the technical field of knurling tools, and particularly relates to an inner hole knurling axial rolling tool body. Background Art

[0002] Knurling is a finishing process in metalworking that creates grooves or patterns on the surface of a finished part. This is achieved using a rotating tool that presses the desired pattern into the metal. Knurling tools create a ridged pattern on shafts, gears, tools, pipes, and other round parts. This textured pattern remains consistent in size over time, creating a uniform knurled surface.

[0003] Pattern rolling technology originated in the early 20th century. With the development of metal plastic deformation theory and the progress of practical application, it has gradually become an efficient and energy-saving precision forming process. The technical background mainly includes the following aspects:

[0004] Materials Science and Mechanics: Pattern rolling relies on the plastic deformation ability of metal materials, that is, under a certain pressure, the metal material can undergo permanent shape change without destroying its internal continuity. This requires the material used to have good plasticity and strain hardening properties.

[0005] Advances in mechanical manufacturing technology: With the improvement of mold design and manufacturing accuracy, as well as the development of high-efficiency, high-precision rolling equipment, pattern rolling technology has been realized and gradually improved.

[0006] Energy-saving and environmental protection needs: Compared with traditional cutting processing methods, pattern rolling processing belongs to the category of chipless processing, which not only reduces the generation of cutting waste, but also reduces energy consumption, which meets the requirements of modern industrial production for green manufacturing and sustainable development.

[0007] The thread surface formed by pattern rolling has a high finish, and the fatigue strength and tensile strength are improved. Therefore, it has been widely used in many industries such as aerospace, automobile manufacturing, fastener production and other fields.

[0008] When knurling tools in the prior art are used to process inner hole patterns, due to the limitations of the inner hole area, the rolling range of traditional knurling tools cannot be adjusted, resulting in different specifications of knurling requiring different types of knurling tools, which leads to very low work efficiency. Utility Model Content

[0009] The purpose of the utility model is to provide an inner hole knurling axial rolling tool body to solve the above-mentioned problems.

[0010] Technical solution: An inner hole knurling axial rolling tool body, the rolling tool body comprising: an upper cover plate, an intermediate plate, a shell, a tail handle and a knurling assembly;

[0011] The knurled assembly is mounted on the middle plate, the upper cover is fixedly mounted on the knurled assembly, the shell cooperates with the bottom of the middle plate and the knurled assembly, the tail handle is mounted on the bottom of the shell, and the shell rotates to drive the knurled assembly to rotate.

[0012] In a further embodiment, the knurling assembly includes: a roller shaft, a knurling wheel, a gear, and a threaded shaft;

[0013] The roller shaft passes through the middle plate, the knurled wheel is mounted on the upper end of the roller shaft and is located between the middle plate and the upper cover plate, the gear is mounted on the lower end of the roller shaft and is located between the middle plate and the tail handle, and the end of the roller shaft is located in the groove of the upper cover plate; the threaded shaft passes through the middle plate, the top of the threaded shaft is fixedly connected to the upper cover plate by a screw, and the bottom of the threaded shaft is fixedly connected to the tail handle by a nut.

[0014] In a further embodiment, the housing is a gear ring structure and is meshed with the gear.

[0015] In a further embodiment, the knurling assemblies are provided with at least three and are mounted on the intermediate plate in a circumferentially equidistant manner.

[0016] In a further embodiment, a gasket is provided on the top of the tail handle.

[0017] In a further embodiment, the roller shaft is an eccentric shaft.

[0018] In a further embodiment, the bottom of the intermediate plate is formed with a boss downward, the top of the shell is formed with a groove downward, and the bottom boss of the intermediate plate is located in the top groove of the shell to form a fit;

[0019] The bottom of the shell is formed with a boss downwards, the top of the tail handle is formed with a groove downwards, and the bottom boss of the shell is located in the top groove of the tail handle to form a fit.

[0020] Beneficial effects: The knurling tool body of the utility model comprises: an upper cover plate, an intermediate plate, a shell, a tail handle and a knurling assembly; the knurling assembly is mounted on the intermediate plate, the upper cover plate is fixedly mounted on the knurling assembly, the shell cooperates with the bottom of the intermediate plate and the knurling assembly, the tail handle is mounted on the bottom of the shell, and the shell rotates to drive the knurling assembly to rotate. The utility model can roll the inner hole pattern of the part, improve the processing speed, and have high efficiency. Through the high tooth profile accuracy, the size is more stable, the quality is improved and the cost is reduced. At the same time, the rolling range is adjustable, which improves the production efficiency and reduces the unit cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an axonometric drawing of the present utility model.

[0022] Figure 2 It is an exploded view of the present invention.

[0023] Figure 3 It is a cross-sectional view of the present utility model.

[0024] Reference numerals: upper cover plate 1, middle plate 2, housing 3, tail handle 4, knurling assembly 5, roller shaft 6, knurling wheel 7, gear 8, threaded shaft 9, screw 10, nut 11, washer 12. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 internal communication between 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. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] An inner hole knurling axial rolling tool body comprises: an upper cover plate 1, an intermediate plate 2, a shell 3, a tail handle 4, and a knurling assembly 5.

[0029] In one embodiment, Figures 1 to 3As shown, the knurled assembly 5 is installed on the middle plate 2, the upper cover plate 1 is fixedly installed on the knurled assembly 5, the shell 3 cooperates with the bottom of the middle plate 2 and the knurled assembly 5, the tail handle 4 is installed on the bottom of the shell 3, and the shell 3 rotates to drive the knurled assembly 5 to rotate.

[0030] In one embodiment, Figures 1 to 3 As shown, the knurling assembly 5 includes: a roller shaft 6, a knurling wheel 7, a gear 8 and a threaded shaft 9;

[0031] The roller shaft 6 passes through the intermediate plate 2, the knurled wheel 7 is installed on the upper end of the roller shaft 6 and is located between the intermediate plate 2 and the upper cover plate 1, the gear 8 is installed on the lower end of the roller shaft 6 and is located between the intermediate plate 2 and the tail handle 4, and the end of the roller shaft 6 is located in the groove of the upper cover plate 1; the threaded shaft 9 passes through the intermediate plate 2, the top of the threaded shaft 9 is fixedly connected to the upper cover plate 1 by a screw 10, and the bottom of the threaded shaft 9 is fixedly connected to the tail handle 4 by a nut 11.

[0032] In one embodiment, Figures 1 to 3 As shown, the housing 3 is a gear ring structure and is engaged with the gear 8 .

[0033] In one embodiment, Figures 1 to 3 As shown, there are at least three knurling assemblies 5 , which are installed on the middle plate 2 in a circumferentially equidistant manner.

[0034] In one embodiment, Figures 1 to 3 As shown, a gasket 12 is provided on the top of the tail handle 4.

[0035] In one embodiment, Figures 1 to 3 As shown, the roller shaft 6 is an eccentric shaft.

[0036] In one embodiment, Figures 1 to 3 As shown, the bottom of the middle plate 2 forms a boss downward, the top of the shell 3 forms a groove downward, and the bottom boss of the middle plate 2 is located in the top groove of the shell 3 to form a fit;

[0037] The bottom of the shell 3 forms a boss downward, and the top of the tail handle 4 forms a groove downward. The bottom boss of the shell 3 is located in the top groove of the tail handle 4 to form a fit.

[0038] Working Principle: When the utility model is in operation, the ring gear and gear are adjusted to the desired position. The product is processed to the rolling size and then rotated into the tool body, which drives the roller to rotate and create the internal spline. The roller is driven and only rotates in a circular motion (once the position is adjusted, it will not change). If the processing size is not in place, the ring gear can be fine-tuned, and the gear drives the eccentric shaft to rotate the angle, thus achieving the adjustment function.

[0039] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An inner hole knurling axial rolling tool body, characterized in that: The rolling tool body comprises: an upper cover plate, an intermediate plate, a shell, a tail handle and a knurling assembly; The knurl assembly is mounted on the middle plate, the upper cover is fixedly mounted on the knurl assembly, the housing cooperates with the bottom of the middle plate and the knurl assembly, the tail handle is mounted on the bottom of the housing, and the housing rotates to drive the knurl assembly to rotate; The knurling assembly includes: a roller shaft, a knurling wheel, a gear and a threaded shaft; The roller shaft passes through the middle plate, the knurled wheel is mounted on the upper end of the roller shaft and is located between the middle plate and the upper cover plate, the gear is mounted on the lower end of the roller shaft and is located between the middle plate and the tail handle, and the end of the roller shaft is located in the groove of the upper cover plate; the threaded shaft passes through the middle plate, the top of the threaded shaft is fixedly connected to the upper cover plate by a screw, and the bottom of the threaded shaft is fixedly connected to the tail handle by a nut; The housing is a gear ring structure and is meshed with the gear; The bottom of the middle plate is formed downwardly as a boss, the top of the shell is formed downwardly as a groove, and the bottom boss of the middle plate is located in the top groove of the shell to form a fit; The bottom of the shell is formed with a boss downwards, the top of the tail handle is formed with a groove downwards, and the bottom boss of the shell is located in the top groove of the tail handle to form a fit.

2. The inner hole knurling axial rolling tool body according to claim 1, characterized in that: There are at least three knurled assemblies, which are installed on the middle plate in a circumferentially equidistant manner.

3. The inner hole knurling axial rolling tool body according to claim 1, characterized in that: A gasket is provided on the top of the tail handle.

4. The inner hole knurling axial rolling tool body according to claim 2, characterized in that: The roller shaft is an eccentric shaft.

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