Hobbing cutter mechanism with rapid cutter changing function

By designing a hobbing cutter mechanism with a quick tool change function, the tool can be quickly positioned and fixed using a limiting post and a slot structure. Combined with the design of a cleaning component, the problem of cumbersome tool changing in traditional hobbing cutter mechanisms is solved, thereby improving production efficiency and machining accuracy.

CN224254388UActive Publication Date: 2026-05-19JIANGSU JUNKE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JUNKE MASCH CO LTD
Filing Date
2025-04-24
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional hobbing mechanisms are cumbersome to operate during tool changing, resulting in low production efficiency. This is especially true in small-batch, multi-variety production models, where time is wasted and it is difficult to guarantee machining accuracy.

Method used

A hobbing mechanism with a quick tool change function was designed. The tool is quickly positioned and fixed by the cooperation of the limiting post and the slot. The cleaning component ensures machining accuracy. The cleaning component includes a conical structure of the limiting rod and the limiting hole and a regular hexagonal structure of the rod and the slot. With the help of the nut, quick installation is achieved. The cleaning component cleans the tool by using a flipping block and a cleaning sponge.

Benefits of technology

It enables rapid and stable tool installation, reduces tool change time, improves production efficiency, and ensures machining accuracy through cleaning components, reduces waste residue, and ensures normal machining.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hobbing cutter mechanisms, in particular to a hobbing cutter mechanism with a rapid cutter changing function. According to the technical scheme, the tool comprises a tool body, the two sides of the tool body are provided with a fixed positioning side plate and a fixed positioning side plate which are used for replacement installation of the tool body respectively, the fixed positioning side plate comprises a first positioning side plate which is fixedly arranged, a limiting column is movably installed on the first positioning side plate, and the limiting column is clamped to one end of the tool body; a clamping rod is further detachably connected to the fixed positioning side plate, and a first clamping groove corresponding to the clamping rod is formed in the end, close to the fixed positioning side plate, of the tool body. A cleaning assembly used for cleaning the outer wall of the cutter body is further arranged on the side face, close to the cutter body, of the first positioning side plate. The tool is compact and novel in structure, different from a traditional installation mode, rapid installation of the tool is achieved, the installation and fixing mode is convenient and fast, connection is tight, stability is high, and the tool cleaning assembly ensures machining precision.
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Description

Technical Field

[0001] This utility model relates to the technical field of hobbing mechanisms, and in particular to a hobbing mechanism with a quick tool changing function. Background Technology

[0002] In the field of machining, hobs are commonly used in various processes such as gear machining and thread machining. Traditional hob mechanisms present numerous inconveniences during tool changing, limiting production efficiency and machining accuracy. The tool installation and removal process of traditional hob mechanisms is cumbersome, typically requiring operators to use multiple tools for complex positioning, tightening, and adjustment operations. For example, in some ordinary gear machining machines, changing a hob may take 15-30 minutes. For mass production, this results in significant equipment downtime, greatly reducing production efficiency. This is especially pronounced in small-batch, multi-variety production models, where the time wasted due to frequent tool changes is even more pronounced. In view of the above reasons, this application proposes an effective method to eliminate positioning backlash. A hob mechanism with a rapid tool changing function that automatically centers upon insertion into the positioning groove, effectively eliminating positioning backlash. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a hobbing mechanism with a quick tool changing function that automatically centers and effectively eliminates positioning gaps when the tool is inserted into the positioning groove.

[0004] The technical solution of this utility model is as follows: A hobbing cutter mechanism with a quick tool changing function includes a tool body. The two sides of the tool body are respectively provided with a first fixed positioning side plate and a second fixed positioning side plate for replacement installation. The first fixed positioning side plate includes a fixedly installed positioning side plate one. A limiting post is movably installed on the positioning side plate one. The limiting post is engaged with one end of the tool body. A locking rod can also be detachably connected to the second fixed positioning side plate. The end of the tool body near the second fixed positioning side plate has a first locking groove that is installed corresponding to the locking rod.

[0005] The positioning side plate, near the side of the tool body, is also provided with a cleaning component for cleaning the outer wall of the tool body.

[0006] Optionally, one end of the clamp is provided with a screw rod two that is threadedly connected to the positioning side plate two, and the screw rod two is also provided with a nut for fixing and locking it.

[0007] Optionally, the limiting post is conical, and a limiting hole is provided on the inner wall of the end of the limiting post near the tool body.

[0008] Optionally, a second slot is provided inside the end of the tool body away from the first slot. A limiting rod is fixedly connected in the second slot. The limiting rod is engaged with a limiting hole, and both the limiting rod and the limiting hole have rectangular cross-sections.

[0009] Optionally, one end of the limiting post is also connected to a screw that is threadedly rotatably connected to a positioning side plate.

[0010] Optionally, the cleaning component includes a guide plate fixedly connected to one side wall of the positioning side plate, a standing block fixedly connected to the upper surface of the guide plate, and a flipping block rotatably connected to one end of the guide plate away from the positioning side plate.

[0011] Optionally, the flipping block is rotatably connected to the end of the guide plate via a rotating shaft, and the outer ring of the rotating shaft is fitted with torsion springs that are connected to both sides of the bottom of the flipping block.

[0012] Optionally, a ring is provided between the flipping block and the upright block for limiting the movement. A cleaning sponge is bonded to the inner ring of the ring, and a guide hole is provided on the ring for the guide plate to pass through.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] This utility model achieves rapid positioning of the tool body through the setting of the second slot and the limiting post. Combined with the clamping installation of the fixed positioning side plate, it achieves stable assembly of the tool body with the fixed positioning side plate. The limiting rod can guide the limiting post to accurately insert into the second slot, preventing the tool body from tilting or deviating, and further improving the positioning accuracy. At the same time, the installation is convenient and quick. Just clamp the limiting rod with the corresponding limiting post, clamp the rod with the corresponding first slot, and then fix it with the nut, thus achieving centering and quick installation.

[0015] Furthermore, by setting up the ring component, the residue of waste chips is reduced, and the tool body can be cleaned and wiped after use, thereby ensuring the normal operation of subsequent processing and ensuring processing accuracy;

[0016] In summary, this utility model has a compact and novel structure, which distinguishes it from traditional installation methods by enabling rapid tool installation. The installation and fixing method is convenient, the connection is tight and highly stable, and the tool cleaning component ensures the accuracy of machining. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of this utility model is provided;

[0018] Figure 2 A front view structural diagram of this utility model is provided;

[0019] Figure 3 This is an exploded view of the present invention;

[0020] Figure 4 An exploded view of the fixed positioning side plate and cleaning components.

[0021] Figure label:

[0022] 1. Tool body; 11. First slot; 12. Second slot; 13. Limiting lever;

[0023] 2. First fixed positioning side plate; 21. Positioning side plate one; 22. Screw one; 23. Limiting post; 230. Limiting hole;

[0024] 3. Second fixed positioning side plate; 31. Screw two; 32. Clamping rod; 33. Positioning side plate two;

[0025] 4. Cleaning components; 41. Guide plate; 42. Circular ring; 420. Guide hole; 43. Flip block; 44. Stand block. Detailed Implementation

[0026] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.

[0027] The components of the embodiments of this disclosure, which are typically described and shown in the accompanying drawings, can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.

[0028] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0029] In the description of this disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0030] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0031] Example 1

[0032] like Figures 1-3 As shown, the present invention proposes a hobbing cutter mechanism with a quick tool changing function, including a tool body 1. A second slot 12 is provided inside the end of the tool body 1 away from the first slot 11. A limit rod 13 is fixedly connected in the second slot 12. A first fixed positioning side plate 2 and a second fixed positioning side plate 3 for replacement installation are respectively provided on both sides of the tool body 1. The first fixed positioning side plate 2 includes a fixedly installed positioning side plate 21. A limit post 23 is movably installed on the positioning side plate 21. One end of the limit post 23 is also connected to a screw rod 22 that is threadedly rotatably connected to the positioning side plate 21. The limit post 23 is conical, and a limit hole 230 is provided on the inner wall of the end of the limit post 23 near the tool body 1. The limit rod 13 is correspondingly engaged with the limit hole 230, and the cross sections of the limit rod 13 and the limit hole 230 are both rectangular structures.

[0033] Combination Figure 2 As shown, the limiting post 23 is clamped to one end of the tool body 1. The second fixed positioning side plate 3 can also be detachably connected to the clamping rod 32. The first groove 11 and the clamping rod 32 have a regular hexagonal cross section, which is used for the quick installation of the second fixed positioning side plate 3 and the tool body 1. One end of the clamping rod 32 is provided with a screw 31 that is threadedly connected to the positioning side plate 33. The screw 31 is also provided with a nut for fixing and locking. The tool body 1 has a first groove 11 inside the end near the second fixed positioning side plate 3, which is installed in accordance with the clamping rod 32.

[0034] In this embodiment, screw 22 and positioning side plate 21 are connected and locked by a nut. The second slot 12 at one end of the tool body 1 is continuously pushed against the limiting post 23. At the same time, the limiting rod 13 enters the limiting hole 230 to achieve further guidance. As the tool body 1 is continuously pushed, the second slot 12 comes into contact with the outer wall of the limiting post 23, thereby achieving the clamping of the second slot 12 with the outer wall of the limiting post 23. Since the cross-section of the second slot 12 and the limiting post 23 are both conical structures, the contact between the second slot 12 and the limiting post 23 is the position clamping. After clamping, the second fixed positioning side plate 3 is assembled with the other end of the tool body 1. The locking rod 32 is engaged with the first slot 11, and the nut is assembled with the outer ring of screw 31, thereby achieving the fixed and limited installation of the tool body 1. The overall installation facilitates the rapid positioning of the tool body 1 and reduces the installation cycle.

[0035] Example 2

[0036] like Figure 3 and Figure 4 As shown, based on Embodiment 1, a cleaning component 4 for cleaning the outer wall of the tool body 1 is also provided on the side of the positioning side plate 21 near the tool body 1. The cleaning component 4 includes a guide plate 41 fixedly connected to the side wall of the positioning side plate 21. A standing block 44 is fixedly connected to the upper surface of the guide plate 41. A flipping block 43 is rotatably connected to the end of the guide plate 41 away from the positioning side plate 21. The flipping block 43 is rotatably connected to the end of the guide plate 41 through a rotating shaft. A torsion spring connected to the bottom sides of the flipping block 43 is sleeved on the outer ring of the rotating shaft. A ring 42 is provided between the flipping block 43 and the standing block 44 for limiting. A cleaning sponge is bonded to the inner ring of the ring 42. A guide hole 420 is provided on the ring 42 for the guide plate 41 to pass through.

[0037] In this embodiment, after the tool body 1 completes the operation, the flipping block 43 is flipped over, and at the same time, the ring 42 is pulled off from the guide plate 41 along the guide hole 420. The ring 42 is then fitted onto the outer ring of the tool body 1. The ring 42 is manually pulled back and forth along the outer wall of the tool body 1 to clean the tool body 1. The tool body 1 is cleaned to ensure the accuracy and efficiency of the machining.

[0038] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A hobbing cutter mechanism with a quick tool change function, comprising a cutter body (1), wherein a first fixed positioning side plate (2) and a second fixed positioning side plate (3) for replacement installation are respectively provided on both sides of the cutter body (1), characterized in that: The first fixed positioning side plate (2) includes a fixedly installed positioning side plate (21), on which a limiting post (23) is movably installed. The limiting post (23) is engaged with one end of the tool body (1). The second fixed positioning side plate (3) can also be detachably connected with a locking rod (32). The tool body (1) has a first locking groove (11) inside the end near the second fixed positioning side plate (3) that corresponds to the locking rod (32). The positioning side plate (21) near the tool body (1) is also provided with a cleaning component (4) for cleaning the outer wall of the tool body (1).

2. The hobbing mechanism with rapid tool changing function according to claim 1, characterized in that, One end of the clamp (32) is provided with a screw rod (31) that is threadedly connected to the positioning side plate (33), and the screw rod (31) is also provided with a nut for fixing and locking it.

3. A hobbing mechanism with rapid tool changing function according to claim 1, characterized in that, The limiting post (23) is conical, and a limiting hole (230) is provided on the inner wall of the end of the limiting post (23) near the tool body (1).

4. A hobbing mechanism with rapid tool changing function according to claim 3, characterized in that, The tool body (1) has a second slot (12) inside the end away from the first slot (11). A limit rod (13) is fixedly connected in the second slot (12). The limit rod (13) is correspondingly engaged with the limit hole (230), and the cross sections of the limit rod (13) and the limit hole (230) are both rectangular.

5. A hobbing mechanism with rapid tool changing function according to claim 1, characterized in that, One end of the limiting post (23) is also connected to a screw rod (22) that is threadedly rotatably connected to the positioning side plate (21).

6. A hobbing mechanism with rapid tool changing function according to claim 1, characterized in that, The cleaning component (4) includes a guide plate (41) fixedly connected to the side wall of the positioning side plate (21), a stand block (44) fixedly connected to the upper surface of the guide plate (41), and a flip block (43) rotatably connected to one end of the guide plate (41) away from the positioning side plate (21).

7. A hobbing mechanism with rapid tool changing function according to claim 6, characterized in that, The flipping block (43) is rotatably connected to the end of the guide plate (41) via a rotating shaft, and the outer ring of the rotating shaft is fitted with torsion springs that are connected to both sides of the bottom of the flipping block (43).

8. A hobbing mechanism with rapid tool changing function according to claim 7, characterized in that, A ring (42) is provided between the flipping block (43) and the upright block (44) for limiting the movement. A cleaning sponge is bonded to the inner ring of the ring (42). A guide hole (420) is provided on the ring (42) for the guide plate (41) to pass through.