Disc type tool magazine and numerical control machine tool

Abstract

The embodiment of the utility model provides a disc type tool magazine and a numerical control machine tool, the disc type tool magazine comprises a tool disc and a plurality of tool sleeves, the multiple tool sleeves are distributed on the outer edge of the circumference of the tool disc, each tool sleeve comprises a tool sleeve body and a tool sleeve seat, and each tool sleeve seat is provided with two guide structures extending in the direction away from the center of the tool disc. Sliding structures matched with the guide structures are arranged on the two sides of the knife pouch body correspondingly so that the knife pouch body can move relative to the guide structures, and each guide structure comprises a first guide part, a second guide part and a third guide part which are sequentially distributed in the extending direction of the guide structure; wherein the extending directions of the inner side guide surfaces of the two second guide parts are mutually folded inwards, and the extending directions of the inner side guide surfaces of the two third guide parts are mutually opened outwards. By the adoption of the disc type tool magazine, the operation difficulty of assembling and disassembling the tool sleeves on the tool disc can be lowered, and the reliability and convenience of installation are improved.

Description

Technical Field

[0001] This application relates to the field of machine tool technology, and in particular to a disc-type tool magazine and a CNC machine tool. Background Technology

[0002] Currently, some CNC machine tools have multiple tool holders that can be separated from the chain track on the chain tool magazine to facilitate user installation, removal and replacement of tool holders. For example, patent document CN221517012U proposes a detachable tool holder assembly that can be removed and replaced from the track of the chain tool magazine.

[0003] However, applying this technology to disc-type tool magazines has led to the following problems: during the process of separating the tool holder from or installing it onto the tool magazine, the guidance becomes worse the further away from the center of the tool magazine, resulting in difficulties in assembly and disassembly, and unreliable installation. Therefore, it is necessary to propose targeted improvement solutions for disc-type tool magazines with tool holders. Utility Model Content

[0004] The embodiments of this application aim to solve at least one of the problems of existing technologies. The embodiments of this application provide a disc-type tool magazine and a CNC machine tool, reducing the difficulty of installing and removing tool holders on the tool disc and improving the reliability and convenience of installation.

[0005] The relevant technical solutions of the embodiments of this application include the following:

[0006] A first aspect of this application provides a disc-type tool magazine. The disc-type tool magazine includes a tool disc and tool sleeves. A plurality of tool sleeves are distributed on the outer edge of the tool disc. Each tool sleeve includes a tool sleeve body and a tool sleeve base. The tool sleeve base has two guide structures extending in a direction away from the center of the tool disc. The tool sleeve body has sliding structures on both sides adapted to the guide structures. The tool sleeve body is movable relative to the guide structures. Each guide structure includes a first guide portion, a second guide portion, and a third guide portion sequentially distributed along its own extending direction. The inner guide surfaces of the two second guide portions converge inwards towards each other, and the inner guide surfaces of the two third guide portions expand outwards towards each other.

[0007] Optionally, at least a portion of the first guide portion or the second guide portion is made of an elastic material.

[0008] Optionally, the extension directions of the inner guide surfaces of the two first guides are parallel to each other, the angle between the extension directions of the inner guide surfaces of the two second guides is greater than 0° and not more than 5°, and the angle between the extension directions of the inner guide surfaces of the two third guides is greater than 10°.

[0009] Optionally, the sliding structure is a groove-shaped structure, the guide structure is inserted into the sliding structure, the cross-section of the third guide portion gradually decreases along its own extension direction, the outer side of the four sides of the third guide portion is flush with the outer side of the second guide portion, and the other three sides are close to each other along the extension direction of the third guide portion.

[0010] Optionally, the outer surfaces of the two second guide portions extend inward toward each other, and the inner surfaces of the two second guide portions also extend inward toward each other.

[0011] Optionally, the sliding structure is a protruding structure, the guide structure is a grooved structure with a slotted cross-section, the sliding structure is inserted into the guide structure, and the slotted cross-section of the third guide part gradually increases along its own extension direction.

[0012] Optionally, the cutter head includes a disc body, a support structure, and a cutter head seat. The disc body includes a central region and an outer edge region. The cutter head seat is located directly below the central region. The disc body and the cutter head seat are connected through the support structure. The support structure includes multiple support ribs. The support ribs extend vertically upward from the outer edge of the cutter head seat and then continue to extend upward to the outer edge of the disc body in an inclined upward and outward diverging manner.

[0013] Optionally, the central region of the cutter head is recessed downward relative to the outer edge region, and the outer edge region of the cutter head is provided with a mounting hole, through which the cutter sleeve seat is mounted on the cutter head.

[0014] Optionally, the disc-type tool magazine further includes a mounting base, with a connecting plate and a base plate respectively provided at the top and bottom of the mounting base. The connecting plate and the base plate are rotatably connected, and there is a clearance space between the connecting plate and the base plate. The clearance space accommodates a reducer for driving the tool disc to rotate.

[0015] A second aspect of this application provides a CNC machine tool. The CNC machine tool includes the disc-type tool magazine described in any of the foregoing embodiments.

[0016] The technical solution for the disc-type tool magazine in this application embodiment has at least the following technical effects: The tool holder seat on the disc-type tool magazine has two guide structures, and the tool holder body can move relative to the guide structures. The guide structures include a first guide portion, a second guide portion, and a third guide portion. The inner guide surfaces of the two second guide portions extend inward towards each other, thereby clamping the tool holder body located on the tool holder seat and restricting the tool holder body from sliding out of the tool holder seat. At the same time, the inner guide surfaces of the two third guide portions extend outward towards each other, so that the two third guide portions tend to open at their ends, thereby facilitating the sliding of the tool holder body between the two guide structures on the tool holder seat, thus improving the installation reliability and convenience of the tool holder body to a certain extent.

[0017] It is easy to understand that the CNC machine tool technical solution in the embodiments of this application has at least the corresponding technical effects of the disc tool magazine technical solution, which will not be elaborated here.

[0018] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows. Some will thus be obvious from the description, or may be learned by practice of the application. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a disc-type tool magazine in some embodiments of this application;

[0020] Figure 2 for Figure 1 The main view;

[0021] Figure 3 This is a schematic diagram of the blade sheath structure in some embodiments of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the tool holder in some embodiments of this application;

[0023] Figure 5 This is a schematic diagram of the structure of the blade sheath body in some embodiments of this application;

[0024] Figure 6 This is a schematic diagram of the blade sheath in some other embodiments of this application.

[0025] In the picture:

[0026] 10-Cutter head; 11-Dish body; 12-Support structure; 121-Support rib; 13-Cutter head holder;

[0027] 20-Tool holder; 210-Tool holder body; 211-Sliding structure; 220-Tool holder seat; 221-Guide structure; 2211-First guide part; 2212-Second guide part; 2213-Third guide part;

[0028] 30-Mounting base; 31-Base plate; 32-Connecting plate; 33-Reducer;

[0029] α - The angle between the extending directions of the inner guide surfaces of the two second guide parts; β - The angle between the extending directions of the inner guide surfaces of the two third guide parts. Detailed Implementation

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below.

[0031] Obviously, the accompanying drawings described below are merely some embodiments of this application. Those skilled in the art can obtain drawings of other embodiments based on the technical solutions illustrated in these drawings without any inventive effort.

[0032] It should be understood that "multiple" as used herein refers to two or more. In the description of this application, unless otherwise stated, " / " means "or", for example, "A / B" means A or B; "and / or" in this document is merely a description of the relationship between related objects, and it can represent three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, B exists alone, etc.

[0033] Furthermore, in order to clearly describe the technical solutions of the embodiments of this application, the terms "first" or "second" are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0034] The terms "installation," "connection," and "setting" mentioned in the embodiments of this application include direct installation / connection / setting as well as indirect installation / connection / setting; detachable installation / connection / setting as well as non-detachable installation / connection / setting; fixed installation / connection / setting as well as movable installation / connection / setting.

[0035] Please see Figures 1 to 5 The first aspect of this application provides a disc-type tool magazine. For example... Figure 1 and Figure 2 As shown, the disc-type tool magazine includes a tool disc 10 and tool holders 20, with multiple tool holders 20 distributed on the outer edge of the circumference of the tool disc 10.

[0036] like Figure 3As shown, the tool holder 20 includes a tool holder body 210 and a tool holder seat 220. The tool holder seat 220 has two guide structures 221 extending in a direction away from the center of the tool disc 10, wherein "extending in a direction away from the center of the tool disc 10" does not require that the reverse extensions of the two guide structures 221 converge at the center of the tool disc 10. Figure 5 As shown, the blade holder body 210 has sliding structures 211 on both sides that are adapted to the guide structure 221, allowing the blade holder body 210 to move relative to the guide structure 221. The sliding structure 211 and the guide structure 221 form a groove and slider (or slider and groove) fit, so that the movement of the blade holder body 210 relative to the blade holder seat 220 can be carried out under a certain degree of guidance.

[0037] like Figure 4 As shown, the guide structure 221 includes a first guide portion 2211, a second guide portion 2212, and a third guide portion 2213 distributed sequentially along its own extension direction. The extension directions of the inner guide surfaces of the two second guide portions 2212 converge inwards, while the extension directions of the inner guide surfaces of the two third guide portions 2213 open outwards.

[0038] In practice, it has been found that if the tool holder base uses the existing guide structure, the distance between corresponding positions of the two guide structures further away from the center of the tool disc will be larger or remain the same. This results in the following consequences: during the process of separating the tool holder from or installing it onto the tool disc, if the gap between the tool holder body 210 and the tool holder base 220 is too small, it is difficult to install the tool holder body 210 onto the tool holder base 220, which also affects the guiding effect; if the gap between the tool holder body 210 and the tool holder base 220 is too large, the tool holder body 210 is prone to slipping off the tool holder base 220, requiring the addition of an extra locking structure to the tool holder base 220.

[0039] The technical solution of this application embodiment divides the guide structure into a first guide portion 2211, a second guide portion 2212, and a third guide portion 2213. However, the extension directions of the three guide portions are not exactly the same, so the entire guide structure does not extend along a single straight line; its extension direction has been modified to a certain extent. In the technical solution of this application embodiment, the extension directions of the inner guide surfaces of the two second guide portions 2212 converge inwards, thereby clamping the blade holder body 210 located on the blade holder seat 220 and thus restricting the blade holder body 210 from sliding out of the blade holder seat 220. At the same time, the extension directions of the inner guide surfaces of the two third guide portions 2213 open outwards, so that the two third guide portions 2213 have an opening tendency at their ends, thereby facilitating the sliding of the blade holder body 210 into the space between the two guide structures 221 on the blade holder seat 220. Since the two sliding structures 211 are located within the space defined by the two guide structures 221 (i.e., the two sliding structures 211 are sandwiched between the two guide structures 221), the technical solution of this application embodiment also improves the installation reliability and convenience of the tool holder to a certain extent.

[0040] Furthermore, during the installation of the tool holder, the third guide portion 2213 of the tool holder seat 220 first engages with the sliding structure 211 of the tool holder body 210 itself. The shape and size of the third guide portion 2213 will affect whether the sliding structure 211 can easily form an assembly relationship with the guide structure 221 (i.e., whether the tool holder body 210 can easily be installed onto the tool holder seat 220). In the technical solution of this application embodiment, if the third guide portion 2213 is a "solid" structure similar to a slider and the sliding structure 211 is a "virtual" structure similar to a groove, then the cross-section of the third guide portion 2213 is designed to gradually decrease along its own extension direction. In this case, at the initial installation of the tool holder body 210, a relatively small slider is installed into a groove of a relatively large cavity, thus making it easier for the tool holder body 210 to be installed onto the tool holder seat 220. Correspondingly, if the third guide portion 2213 is a "virtual" structure similar to a groove and the sliding structure 211 is a "solid" structure similar to a slider (see... Figure 6 Therefore, the grooved cross-section of the third guide portion 2213 is designed to gradually increase in size along its extension direction, thereby enabling the relatively small slider to be installed into the groove of the relatively large cavity at the initial stage of installing the tool holder body 210. Thus, in the technical solution of this application embodiment, the sliding structure 211 is more easily matched with the third guide portion 2213 when installing the tool holder body 210, providing a certain degree of guidance and improving the ease of installation and removal of the tool holder body 210.

[0041] Furthermore, in some embodiments of this application, the extension directions of the outer surfaces of the two second guide portions 2212 converge inwards towards each other, and the extension directions of the inner surfaces of the two second guide portions 2212 also converge inwards towards each other, thereby facilitating the processing of the second guide portions 2212 of the guide structure 221.

[0042] Optionally, in some embodiments of this application, at least a portion of the first guide portion 2211 or the second guide portion 2212 is made of an elastic material. Since the two sliding structures 211 are sandwiched between the two guide structures 221, and the sliding structures 211 successively slide in cooperation with the third guide portion 2213 and the second guide portion 2212, the guide structures 221 are pushed outward to a certain extent. Since at least a portion of the first guide portion 2211 or the second guide portion 2212 is made of an elastic material (e.g., the second guide portion 2212 is made of an elastic material), after the guide structures 221 are pushed outward, their inherent elasticity gives them a tendency to move inward, thereby clamping the sliding structure 211. Thus, in some embodiments of this application, the blade holder body 210 can not only move relative to the blade holder seat 220 under external force, but can also be locked onto the blade holder seat 220 without external force.

[0043] The extension directions of the two second guide portions 2212 should be modified to a certain extent. If the inward convergence is too large, the guide structure 221 will not be able to adapt to the sliding structure 211. Optionally, in some embodiments of this application, the extension directions of the inner guide surfaces of the two first guide portions 211 are parallel to each other, the included angle α of the extension directions of the inner guide surfaces of the two second guide portions 2212 is greater than 0° and does not exceed 5°, and the included angle β of the extension directions of the inner guide surfaces of the two third guide portions 2213 is greater than 10°. Specifically, the included angle α is preferably a value between 1.5° and 3.5°, for example, 2° or 3°, and the included angle β is preferably a value between 15° and 30°.

[0044] Optionally, in some embodiments of this application, such as Figure 3 and Figure 4As shown, the sliding structure 211 is a groove-shaped structure, and the guide structure 221 is inserted into the sliding structure 211. The cross-section of the third guide portion 2213 gradually decreases along its extension direction. The outer side of the four sides of the third guide portion 2213 is flush with the outer side of the second guide portion 2212, and the other three sides are close to each other along the extension direction of the third guide portion 2213. The three outer sides of the third guide portion 2213 get closer to each other as they are farther away from the center of the cutter head 10, so that the cross-section of the end of the third guide portion 2213 farthest from the center of the cutter head 10 is the smallest. This allows the relatively small slider to be installed into the groove of the relatively large chamber at the initial stage of installing the cutter sleeve body 210. The outer side of the third guide portion 2213 is flush with the outer side of the second guide portion 2212, which maintains the flatness of the outer envelope surface of the guide structure 221 as much as possible, thereby reducing the machining steps of the side surface of the entire guide structure 221.

[0045] Alternatively, in other embodiments of this application, such as Figure 6 As shown, the sliding structure 211 is a protruding structure, and the guide structure 221 is a grooved structure with a slotted cross-section. The sliding structure 211 is inserted into the guide structure 221, and the slotted cross-section of the third guide part 2213 gradually increases in size along its extension direction. As mentioned above, this design makes it easier for the sliding structure 211 to cooperate with the third guide part 2213, providing a certain degree of guidance and improving the ease of assembly and disassembly of the tool holder body 210.

[0046] Optionally, in some embodiments of this application, please refer to Figure 1 and Figure 2 The cutter head 10 includes a disc body 11, a support structure 12, and a cutter head seat 13. The disc body 11 includes a central region and an outer edge region. The cutter head seat 13 is located directly below the central region of the disc body 11. The disc body 11 and the cutter head seat 13 are connected by the support structure 12. The support structure 12 includes multiple support ribs 121. The support ribs 121 extend vertically upward from the outer edge of the cutter head seat 13 and then continue to extend upward to the outer edge of the disc body 11 in an inclined upward and outward diverging manner. The support ribs 121 extend vertically upward and then extend inclined upward and outward, rather than directly inclined upward and outward, which saves the area occupied by the entire cutter head 10 within the vertically upward extension height range, thereby providing installation space for other components.

[0047] Optionally, in some embodiments of this application, please refer to Figure 1 and Figure 2The central region of the cutter head 10 is recessed downward relative to the outer edge region. The outer edge region of the cutter head 10 has mounting holes through which the tool holder 220 is mounted. This recessed central region of the cutter head 10 also provides mounting space for other components on the central area of ​​its upper surface, making the entire disc-type tool magazine and even the entire tool changing system more compact.

[0048] Optionally, in some embodiments of this application, please refer to Figure 1 and Figure 2 The disc-type tool magazine also includes a mounting base 30, with a connecting plate 32 and a base plate 31 respectively provided on the top and bottom of the mounting base 30. The connecting plate 32 and the base plate 31 are rotatably connected, and there is a clearance space between the connecting plate 32 and the base plate 31. This clearance space accommodates a reducer 33 for driving the tool disc 10 to rotate, thereby further making the structure of the entire disc-type tool magazine more compact.

[0049] A second aspect of this application provides a CNC machine tool. The CNC machine tool includes the disc-type tool magazine described in any of the preceding embodiments. The disc-type tool magazine can be placed flat on the machine tool body, and multiple tool holders 20 are distributed on the outer edge of the tool disc 10 of the disc-type tool magazine, each tool holder 20 storing one tool.

[0050] The above-listed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A disc-type tool magazine, comprising a tool disc and tool sleeves, wherein a plurality of said tool sleeves are distributed on the outer edge of the tool disc, characterized in that, The tool holder includes a tool holder body and a tool holder base. The tool holder base has two guide structures extending in a direction away from the center of the tool disc. The tool holder body has sliding structures on both sides that are adapted to the guide structures. The tool holder body can move relative to the guide structures. The guide structure includes a first guide portion, a second guide portion, and a third guide portion distributed sequentially along its own extension direction. The inner guide surfaces of the two second guide portions extend inward towards each other, and the inner guide surfaces of the two third guide portions extend outward towards each other.

2. The disc-type tool magazine according to claim 1, characterized in that, At least a portion of the first guide portion or the second guide portion is made of an elastic material.

3. The disc-type tool magazine according to claim 2, characterized in that, The inner guide surfaces of the two first guides extend in parallel directions, the angle between the inner guide surfaces of the two second guides is greater than 0° and does not exceed 5°, and the angle between the inner guide surfaces of the two third guides extends in greater than 10°.

4. The disc-type tool magazine according to claim 1, characterized in that, The sliding structure is a groove-shaped structure, and the guide structure is inserted into the sliding structure. The cross-section of the third guide portion gradually decreases along its own extension direction. The outer side of the four sides of the third guide portion is flush with the outer side of the second guide portion, and the other three sides are close to each other along the extension direction of the third guide portion.

5. The disc-type tool magazine according to claim 4, characterized in that, The outer surfaces of the two second guide portions extend inward toward each other, and the inner surfaces of the two second guide portions also extend inward toward each other.

6. The disc-type tool magazine according to claim 1, characterized in that, The sliding structure is a raised structure, the guide structure is a grooved structure with a slotted cross section, the sliding structure is inserted into the guide structure, and the slotted cross section of the third guide part gradually increases along its own extension direction.

7. The disc-type tool magazine according to any one of claims 1 to 6, characterized in that, The cutter head includes a disc body, a support structure, and a cutter head seat. The disc body includes a central region and an outer edge region. The cutter head seat is located directly below the central region. The disc body and the cutter head seat are connected by the support structure. The support structure includes multiple support ribs. The support ribs extend vertically upward from the outer edge of the cutter head seat and then continue to extend upward to the outer edge of the disc body in an inclined upward and outward diverging manner.

8. The disc-type tool magazine according to claim 7, characterized in that, The central region of the cutter head is recessed downward relative to the outer edge region, and the outer edge region of the cutter head is provided with a mounting hole, through which the cutter sleeve seat is mounted on the cutter head.

9. The disc-type tool magazine according to claim 8, characterized in that, The disc-type tool magazine also includes a mounting base, with a connecting plate and a base plate respectively provided at the top and bottom of the mounting base. The connecting plate and the base plate are rotatably connected, and there is a clearance space between the connecting plate and the base plate. The clearance space accommodates a reducer for driving the tool disc to rotate.

10. A CNC machine tool, characterized in that, Includes a disc-type tool magazine as described in any one of claims 1 to 9.

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