Tool magazine assembly and tool claw module thereof
A compact tool holder design with a circular ring structure and strategically positioned protrusions addresses the bulkiness and weight issues of existing tool changers, enhancing machine tool miniaturization and reducing weight effectively.
Patent Information
- Application Number
- CN202421940046.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-12
AI Technical Summary
Existing automatic tool changers in CNC machining centers are bulky and heavy, hindering the miniaturization and lightweight requirements of modern machine tools, necessitating a compact and lightweight tool holder design.
A compact tool holder design featuring a claw module with a circular ring structure and strategically positioned protrusions on the inner side walls of the claw arms, allowing for secure fixation of tool holders while reducing redundant material, thereby minimizing weight and volume.
The design achieves a reduction in tool changer weight and overall machine tool size without compromising stability, meeting the demands for smaller and lighter tool changers.
Smart Images
Figure CN223098691U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tool magazine tool changing, in particular to a tool magazine assembly and a tool claw module thereof. Background Art
[0002] The automatic tool changing mechanism is an important device for realizing intelligence in today's CNC machine tools. Automatic tool changing is a function that is becoming increasingly common on machine tools nowadays. It is used for the rapid connection between different processes of parts, replacing the used tool holder of the previous process with a new tool holder for the next process. Using this function can greatly improve efficiency. Automatic tool changing is generally carried out with the assistance of tool claws, a tool magazine, and the machine tool spindle. The tool claw is the core component for the tool magazine to perform automatic tool changing. As more and more machine tools are designed to be smaller, the requirements for the tool magazine part are also getting higher and higher. On the premise of ensuring flexibility, the volume of the tool magazine should be small enough and the variety should be light enough. However, the existing tool claws on the market are relatively thick and heavy, resulting in a larger volume and weight of the overall tool magazine. Therefore, there is an urgent need for a compact and lightweight tool claw for the field of small machine tools.
[0003] The disclosure of the above background art content is only used to assist in understanding the concept and technical solution of the present utility model. It does not necessarily belong to the prior art of this patent application. Without clear evidence indicating that the above content was publicly available on the filing date of this patent application, the above background art should not be used to evaluate the novelty and creativity of this application. Summary of the Utility Model
[0004] To solve the above technical problems, the present utility model proposes a tool magazine assembly and a tool claw module thereof. By adopting a compact structure, it can satisfy the firm fixation of the tool holder module, reduce the redundant parts of the tool claw module, and achieve the purpose of reducing the mass of the tool magazine, reducing the overall weight of the tool magazine, and reducing the overall volume.
[0005] To achieve the above purpose, the present utility model adopts the following technical solutions:
[0006] In the first aspect, the present utility model discloses a tool claw module, which includes a tool claw base body, a first claw arm, and a second claw arm. The first claw arm and the second claw arm are respectively fixedly connected to both ends of the same side of the tool claw base body, and the free ends of the first claw arm and the second claw arm are spaced apart, so as to form an annular bayonet structure with an opening through the interconnected first claw arm, tool claw base body, and second claw arm. On the inner side wall of the annular bayonet structure, a first protrusion and a second protrusion are provided along the circumferential direction. The first protrusion is arranged above the second protrusion, and the upper surface of the first protrusion is inclined downward, the lower surface of the first protrusion is inclined upward, and the upper surface of the second protrusion is parallel to the horizontal plane.
[0007] Preferably, the first claw arm and the second claw arm are integrally connected to two ends on the same side of the claw base respectively.
[0008] Preferably, the upper surface of the first convex portion is a downwardly inclined plane, an inwardly concave arc surface or an outwardly convex arc surface, and the lower surface of the first convex portion is an upwardly inclined plane, an inwardly concave arc surface or an outwardly convex arc surface.
[0009] Preferably, the first convex portion is integrally a V-shaped structure convex or an arc-shaped structure convex.
[0010] Preferably, the arc angles of the first convex portion and the second convex portion respectively correspond to the arc angle of the ring bayonet structure.
[0011] Preferably, the angle of the opening of the ring bayonet structure is less than 180°.
[0012] Preferably, the angle of the opening of the ring bayonet structure is 100° - 150°.
[0013] Preferably, the first convex portion and the second convex portion are arranged at intervals in the vertical direction.
[0014] In a second aspect, the present invention discloses a tool magazine assembly, including a tool magazine base, a tool holder module and the tool claw module described in the first aspect. The tool claw base is fixedly connected to the tool magazine base. The tool holder module includes a tool holder base, and a first recessed portion and a second recessed portion are provided on the outer side wall of the tool holder base along the circumferential direction. The first recessed portion is correspondingly arranged with the first convex portion, and the second recessed portion is correspondingly arranged with the second convex portion.
[0015] Preferably, screw counterbore holes are formed in the tool claw base, and the tool claw base is fixedly connected to the tool magazine base through the screw counterbore holes.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The tool magazine assembly and its tool claw module proposed by the present invention form an open ring bayonet structure through the first claw arm, the tool claw base and the second claw arm. The inner side wall of the ring bayonet structure is provided with a first convex portion and a second convex portion along the circumferential direction. Combining the specific structural settings of the first convex portion and the second convex portion, the tool claw module can conveniently clamp and fix the tool holder base, and concentrate the mass at the acting position, so that a compact structure can be adopted to satisfy the firm fixation of the tool holder module, reduce the redundant part of the tool claw module, and achieve the purpose of reducing the mass of the tool magazine, reducing the overall weight of the tool magazine and reducing the overall volume. Description of the Drawings
[0017] Figure 1It is a schematic structural diagram of the knife claw module according to the first embodiment of the present utility model;
[0018] Figure 2 is Figure 1 a schematic cross-sectional view of the knife claw module in
[0019] Figure 3 It is a schematic structural diagram of the tool magazine assembly according to the second embodiment of the present utility model;
[0020] Figure 4 is Figure 3 a schematic cross-sectional view of the tool magazine assembly in
[0021] Figure 5 is Figure 3 a schematic structural diagram of the tool holder module of the tool magazine assembly in
[0022] Explanation of the reference numerals in the drawings:
[0023] 10. Knife claw module; 11. First claw arm; 12. Second claw arm; 13. Knife claw base; 131. Countersunk screw hole; 14. First protrusion; 141. Upper surface; 142. Lower surface; 15. Second protrusion;
[0024] 20. Tool holder module; 21. Tool holder base; 211. First recess; 2111. Upper surface; 2112. Lower surface; 212. Second recess. Detailed implementation manners
[0025] The following provides a detailed description of the implementation manners of the present utility model. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present utility model.
[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. Additionally, the connection can be for a fixing function or for a circuit / signal communication function.
[0027] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0028] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more such features. In the description of the embodiments of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.
[0029] As Figure 1 shown, Embodiment 1 of the present utility model discloses a claw module 10, including a claw base body 13, a first claw arm 11, and a second claw arm 12. The first claw arm 11 and the second claw arm 12 are respectively fixedly connected to both ends of the same side of the claw base body 13, and the free ends of the first claw arm 11 and the second claw arm 12 are spaced apart, so as to form an annular bayonet structure with an opening through the interconnected first claw arm 11, claw base body 13, and second claw arm 12. Combining Figure 2 with, a first protrusion 14 and a second protrusion 15 are provided on the inner side wall of the annular bayonet structure along the circumferential direction, wherein the first protrusion 14 is arranged above the second protrusion 15, and the upper surface 141 of the first protrusion 14 is inclined downward, the lower surface 142 of the first protrusion 14 is inclined upward, and the upper surface of the second protrusion 15 is parallel to the horizontal plane.
[0030] The first claw arm 11 and the second claw arm 12 are respectively integrally connected to both ends of the same side of the claw base body 13. Specifically, the first end of the first claw arm 11 is integrally connected to the first end of the first side of the claw base body 13, and the first end of the second claw arm 12 is integrally connected to the second end of the first side of the claw base body 13, wherein the second ends of the first claw arm 11 and the second claw arm 12 are spaced apart, so as to form an annular bayonet structure with an opening through the integrally connected first claw arm 11, claw base body 13, and second claw arm 12.
[0031] Wherein, the upper surface 141 of the first protrusion 14 is a plane inclined downward, an inwardly concave arc surface, or an outwardly convex arc surface, and the lower surface 142 of the first protrusion 14 is a plane inclined upward, an inwardly concave arc surface, or an outwardly convex arc surface. Further, the first protrusion 14 is integrally a V-shaped structure protrusion or an arc structure protrusion. As Figure 2 shown, the first protrusion 14 on the claw module 10 in this embodiment is integrally a V-shaped structure protrusion.
[0032] The arc angles of the first protrusion 14 and the second protrusion 15 respectively correspond to the arc angle of the annular bayonet structure; that is, the first protrusion 14 and the second protrusion 15 respectively protrude through the inner side wall of the annular bayonet structure along the circumferential direction. Moreover, the first protrusion 14 and the second protrusion 15 are spaced apart in the vertical direction.
[0033] Among them, the opening angle of the circular ring bayonet structure is less than 180°. Further, the opening angle of the circular ring bayonet structure is 100° - 150°. In this specific example, the opening angle of the circular ring bayonet structure is 120°. The first claw arm 11 and the second claw arm 12 forming the circular ring bayonet structure have a certain elasticity, and ordinary elastic materials can be used for the material, so that the circular ring bayonet structure can be inserted into the outer ring of the tool holder base and play a role in fixing the tool holder base.
[0034] As Figure 3 shown, Embodiment 2 of the present utility model discloses a tool magazine assembly, including a tool magazine base (not shown in the figure), a tool holder module 20, and the tool claw module 10 in Embodiment 1. The tool holder base 20 is fixedly connected to the tool magazine base. The tool holder module 20 includes a tool holder base 21. Along the circumferential direction on the outer side wall of the tool holder base 21, there are provided a first recess 211 and a second recess 212. The first recess 211 is correspondingly arranged with the first protrusion 14, and the second recess 212 is correspondingly arranged with the second protrusion 15.
[0035] Among them, a screw countersunk hole 131 is opened on the tool claw base 13. By using a screw through the screw countersunk hole 131, the tool claw base 13 can be fixedly connected to the tool magazine base.
[0036] Combined with Figure 4 and Figure 5 , when it is necessary to grasp the tool holder module 20, the tool magazine base controls the tool claw module 10 so that the circular ring bayonet structure is inserted into the outer wall of the tool holder base 21. Among them, the upper surface 141 of the first protrusion 14 on the tool claw module 10 fits with the upper surface 2111 of the first recess 211, and the lower surface 142 of the first protrusion 14 on the tool claw module 10 fits with the lower surface 2112 of the first recess 211. That is, the tool holder module 20 is fixed by the tight fit between the V-shaped structure protrusion or arc structure protrusion on the tool claw module 10 and the first recess 211 on the tool holder base 21. Further, a second protrusion 15 is provided as a supporting ring below the first protrusion 14 of the V-shaped structure protrusion or arc structure protrusion. Through the second protrusion 15, the tool holder module 20 can be further fixed in the vertical direction.
[0037] Through the tool claw module 10 provided by the present utility model, a compact structure can be adopted to meet the requirement of firmly fixing the tool holder module 20, reducing the redundant part of the tool claw module 10, achieving the purpose of reducing the mass of the tool magazine, reducing the overall weight of the tool magazine, and reducing the overall volume.
[0038] The background part of the present utility model may include background information about the problems or environment of the present utility model, rather than the description of the prior art by others. Therefore, the content included in the background art part is not the applicant's recognition of the prior art.
[0039] The above content is a further detailed description of the present utility model in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, they can also make several substitutions or variations to these described embodiments, and these substitution or variation methods should all be regarded as belonging to the protection scope of the present utility model. In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present utility model and their advantages have been described in detail, it should be understood that various changes, substitutions, and alterations can be made herein without departing from the scope defined by the appended claims.
Claims
1. A knife claw module, characterized in that, It includes a claw base body, a first claw arm and a second claw arm. The first claw arm and the second claw arm are respectively fixedly connected to two ends on the same side of the claw base body, and the free ends of the first claw arm and the second claw arm are arranged at intervals, so as to form an annular bayonet structure with an opening through the interconnected first claw arm, the claw base body and the second claw arm. On the inner side wall of the annular bayonet structure, a first protrusion and a second protrusion are arranged along the circumferential direction, wherein the first protrusion is arranged above the second protrusion, the upper surface of the first protrusion is inclined downward, the lower surface of the first protrusion is inclined upward, and the upper surface of the second protrusion is parallel to the horizontal plane.
2. The claw module according to claim 1, wherein The first claw arm and the second claw arm are respectively integrally connected to two ends on the same side of the claw base body.
3. The knife claw module according to claim 1, wherein The upper surface of the first protrusion is a plane inclined downward, an inwardly concave arc surface or an outwardly convex arc surface, and the lower surface of the first protrusion is a plane inclined upward, an inwardly concave arc surface or an outwardly convex arc surface.
4. The claw module according to claim 1, wherein The first protrusion is integrally a V-shaped structure protrusion or an arc-shaped structure protrusion.
5. The claw module according to claim 1, characterized in that The arc angles of the first protrusion and the second protrusion respectively correspond to the arc angle of the annular bayonet structure.
6. The claw module according to claim 1, characterized in that The angle of the opening of the annular bayonet structure is less than 180°.
7. The claw module according to claim 6, wherein The angle of the opening of the annular bayonet structure is 100° to 150°.
8. The claw module according to claim 1, wherein, The first protrusion and the second protrusion are arranged at intervals in the vertical direction.
9. A tool magazine component, characterized in that, It includes a tool magazine base body, a tool handle module and the claw module according to any one of claims 1 to 8. The claw base body is fixedly connected to the tool magazine base body. The tool handle module includes a tool handle base body. On the outer side wall of the tool handle base body, a first recess and a second recess are arranged along the circumferential direction. The first recess is correspondingly arranged with the first protrusion, and the second recess is correspondingly arranged with the second protrusion.
10. The tool magazine assembly according to claim 9, wherein, A screw counterbore is formed on the claw base body, and the claw base body is fixedly connected to the tool magazine base body through the screw counterbore.