A tool changing arm and a tool changing mechanism

Abstract

The utility model discloses a kind of tool changing arms, comprising: tool changing arm main body, with at least one accommodating groove and at least one with accommodating groove intercommunication moving groove;At least one tool changing claw, detachably fixed in tool changing arm main body terminal;At least one lock tool bar, movably configured in moving groove and accommodating groove;At least one longitudinal moving block, movably configured in accommodating groove;At least one oblique block, movably configured in accommodating groove and obliquely arranged between lock tool bar and longitudinal moving block, oblique block one end and lock tool bar pivot, oblique block other end and longitudinal moving block bevel sliding fit;And at least one reset piece.The utility model drives lock tool bar to be close to or away from tool changing claw by pressing longitudinal moving block and driving oblique block to move, to realize the locking or unlocking of tool, oblique block one end and lock tool bar pivot, longitudinal moving block bevel sliding fit at other end, avoid the abrasion generated by long time interaction between lock tool bar and driving seat.

Description

Technical Field

[0001] This utility model relates to the field of tool changing equipment technology, specifically to a tool changing arm and a tool changing mechanism. Background Technology

[0002] The automatic tool changer of a machine tool is used to quickly exchange tool holders located in the tool magazine and the machining spindle to improve work efficiency. Therefore, the part of the tool changer used to engage the tool holder must have the function of quickly engaging or releasing the tool holder, and prevent the tool holder from coming loose when engaged.

[0003] Utility model patent publication number M597197 discloses a "non-impact tool changing device." This patent technology discloses a drive unit that drives a locking bar. The drive unit includes a fixed base fixed to the bottom surface of the main body, a cylindrical drive seat (i.e., the actuating element) passing through a hole in the main body, an elastic element disposed in the fixed base, and a limiting element passing through an elongated limiting groove of the drive seat. The locking bar and the drive seat are in contact with an inclined surface. Admittedly, although the combination of the aforementioned components can drive the locking bar to move through the inclined surface during the up and down movement of the drive seat to achieve the purpose of releasing and locking the tool, the structure of this patent technology has the following shortcomings: 1. The inclined surface contact between the locking bar and the drive seat is prone to excessive wear under long-term interaction; 2. This patent technology has a recessed receiving groove on the top surface of the main body for placing the locking bar, and another recessed receiving groove on the locking bar for placing a spring. Then, a cover plate is used to cover the locking bar and restrict the spring. However, the aforementioned relationship between the components will increase the processing procedures for the detailed structures of each component, and will also increase the number of disassembly and assembly steps. Utility Model Content

[0004] To solve at least one technical problem of the prior art, this utility model provides a tool changing arm and a tool changing mechanism.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is: a tool changer arm, comprising: The main body of the cutter arm has at least one receiving groove and at least one moving groove communicating with the receiving groove; At least one tool changing claw is detachably fixed to the end of the tool arm body; At least one locking lever is movably disposed in the moving slot and the receiving slot along a first direction; At least one longitudinally moving block is movably disposed in the receiving groove along a second direction perpendicular to the first direction; At least one inclined block is movably disposed in the receiving groove and inclinedly positioned between the locking bar and the longitudinal moving block, one end of the inclined block is pivotally connected to the locking bar, and the other end of the inclined block is slidingly engaged with the inclined surface of the longitudinal moving block; And at least one reset element to reset the longitudinal moving block.

[0006] In some embodiments, a sliding groove extending along a third direction is installed in the receiving groove, and a roller is installed at the end of the inclined block facing the longitudinal moving block. The roller is engaged in the sliding groove, and the third direction is perpendicular to the first direction and the second direction.

[0007] In some embodiments, the longitudinal moving block includes a moving block and a pressing rod fixed to the top of the moving block and extending out of the blade body, the moving block having an inclined surface that slides in conjunction with the inclined surface of the inclined block.

[0008] In some embodiments, the moving block has a large end at a lower position and a small end at a higher position, and the connecting surface between the large end and the small end is the inclined surface. When the large end of the moving block contacts the inclined block, the tool changing arm is in a locked state, and when the small end of the moving block contacts the inclined block, the tool changing arm is in an unlocked state. The state of the tool changing arm can be switched by pressing the pressing rod.

[0009] In some embodiments, the cutter arm body further has at least one longitudinal moving groove communicating with the receiving groove, the depth of the longitudinal moving groove being greater than the depth of the receiving groove, and both the moving block and the reset member being disposed in the longitudinal moving groove.

[0010] In some embodiments, the inclined block has a clamping opening and a first through hole communicating with the clamping opening at one end facing the locking bar, the locking bar has a second through hole, and the locking bar is disposed in the clamping opening and pivotally connected to the inclined block by a pin.

[0011] In some embodiments, the locking lever includes a lever body and a stop block fixed to one end of the lever body. The lever body includes a first lever body connected to the stop block and a second lever body connected to the first lever body. The first lever body is movably disposed in the moving groove, and the second lever body is movably disposed in the receiving groove and pivotally connected to the inclined block. The size of the second lever body is larger than the size of the moving groove.

[0012] In some embodiments, the locking lever includes a lever body and a stop block fixed to one end of the lever body. The lever body is movably disposed in the moving groove and the receiving groove and pivotally connected to the inclined block. The lever body is provided with an elongated limiting hole. The cutter arm body is provided with a third through hole communicating with the receiving groove, and the cutter arm also includes a pin, which passes through the third through hole and is disposed in the limiting hole.

[0013] In some embodiments, the tool changing arm further includes a cover plate that locks the tool locking rod, the inclined block, and the longitudinal moving block in the moving groove and the receiving groove. The cover plate is detachably connected to the tool arm body, and the cover plate is provided with a fourth through hole for the longitudinal moving block to extend partially out of the cover plate.

[0014] A tool changing mechanism, including the aforementioned tool changing arm.

[0015] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: 1. This utility model uses the pressing of the longitudinal moving block to drive the inclined block to move, thereby driving the locking bar to move closer to or away from the tool changing claw, thus achieving the locking or unlocking of the tool. One end of the inclined block is pivotally connected to the locking bar, and the other end of the longitudinal moving block slides and engages with the inclined surface, avoiding wear caused by long-term interaction between the locking bar and the drive seat. 2. This utility model only provides a moving groove and a receiving groove on the main body of the cutter arm, which has a simple structure, fewer processing steps, and reduces the processing difficulty of changing the cutter arm. Attached Figure Description

[0016] Figure 1 This is an exploded view of the components of the tool changer arm in Embodiment 1 of this utility model. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0019] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0020] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0021] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Example 1 Reference Figure 1 This disclosure provides a tool changing arm, including a tool arm body 1, at least one tool changing claw 2, at least one tool locking rod 3, at least one longitudinal moving block 6, at least one inclined block 4, and at least one reset member 7. The tool arm body 1 has at least one receiving groove 11 and at least one moving groove 12 communicating with the receiving groove 11. The tool locking rod 3 is movably disposed in the moving groove 12 and the receiving groove 11 along a first direction D1. The longitudinal moving block 6 is movably disposed in the receiving groove 11 along a second direction D2, which is perpendicular to the first direction D1. The inclined block 4 is movably disposed in the receiving groove 11 and is inclinedly disposed between the tool locking rod 3 and the longitudinal moving block 6. One end of the inclined block 4 is pivotally connected to the tool locking rod 3, and the other end of the inclined block 4 is slidingly engaged with the inclined surface of the longitudinal moving block 6.

[0024] The tool changing claw 2 is detachably fixed to the end of the tool arm body 1, forming a clamping space 20 with the tool arm body 1 to accommodate the tool. The tool locking rod 3 is partially disposed in the clamping space 20 and cooperates with the tool changing claw 2 to lock or unlock the tool.

[0025] Specifically, by pressing the longitudinal moving block 6, the inclined block 4 is moved to drive the locking lever 3 to move closer to or away from the tool changing claw 2, thereby locking or unlocking the tool.

[0026] In some embodiments, a slide groove 9 extending along a third direction D3 is installed in the receiving groove 11, and a roller (not shown) is installed at the end of the inclined block 4 facing the longitudinal moving block 6, the roller being engaged in the slide groove 9. When the longitudinal moving block 6 is pressed, causing it to move along the second direction D2, the roller at the end of the inclined block 4 moves along the slide groove 9, thereby driving the locking lever 3 to move closer to or away from the tool changing claw 2. The third direction D3 is perpendicular to the first direction D1 and the second direction D2.

[0027] In some embodiments, the longitudinal moving block 6 includes a moving block 61 and a pressing rod 62 fixed to the top of the moving block 61 and extending out of the blade body 1. The moving block 61 has an inclined surface that slides and engages with the inclined surface of the inclined block 4.

[0028] In some embodiments, the moving block 61 has a large end at a lower position and a small end at a higher position, with the connecting surface between the large and small ends being an inclined surface. When the large end of the moving block 61 contacts the inclined block 4, the tool changing arm is in a locked state; when the small end of the moving block 61 contacts the inclined block 4, the tool changing arm is in an unlocked state. The state of the tool changing arm is switched by pressing the pressing lever 62. In this embodiment, when the longitudinal moving block 6 is not pressed, and the large end of the moving block 61 contacts the inclined block 4, that is, when the longitudinal moving block 6 is not pressed, the tool changing arm is in a locked state for the tool.

[0029] In some embodiments, the reset member 7 is used to reset the longitudinal moving block 6. The cutter arm body 1 also has at least one longitudinal moving groove 13 communicating with the receiving groove 11, and both the moving block 61 and the reset member 7 are disposed in the longitudinal moving groove 13, with the reset member 7 disposed below the moving block 61. Preferably, the reset member 7 is a spring.

[0030] The depth of the longitudinal moving groove 13 is greater than the depth of the receiving groove 11, so that after pressing the pressing rod 62, the large end of the moving block 61 moves downward, thereby making the small end of the moving block 61 contact the inclined block 4.

[0031] In a preferred embodiment, the moving block 61 is truncated cone-shaped, and the longitudinal moving groove is a circular groove.

[0032] In some embodiments, the inclined block 4 is provided with a clamping port 42 and a first through hole 43 communicating with the clamping port 42 at one end facing the locking bar 3. The locking bar 3 has a second through hole 320. The locking bar 3 is disposed in the clamping port 42 and pivotally connected to the inclined block 4 via a pin 5.

[0033] The inclined block 4 has two vertically opposite clamping plates 41 at one end facing the locking lever 3, with the aforementioned clamping opening 42 formed in front of the two clamping plates 41. A second through hole 320 is correspondingly provided on each of the two clamping plates 41.

[0034] In some embodiments, the locking lever 3 includes a lever body 32 and a stop block 31 fixed to one end of the lever body 32. The lever body 32 includes a first lever body 321 connected to the stop block 31 and a second lever body 322 connected to the first lever body 321. The first lever body 321 is movably disposed in the moving groove 12, and the second lever body 322 is movably disposed in the receiving groove 11 and pivotally connected to the inclined block 4. The size of the second lever body 322 is larger than the size of the moving groove 12 to prevent the locking lever 3 from disengaging from the lever arm body 1.

[0035] In some embodiments, the locking lever 3 includes a lever body 32 and a stop block 31 fixed to one end of the lever body 32. The lever body 32 is movably disposed in the moving groove 12 and the receiving groove 11 and is pivotally connected to the inclined block 4. The lever body 32 is provided with an elongated limiting hole. The blade arm body 1 is provided with a third through hole communicating with the receiving groove 11. The blade changing arm also includes a pin. The pin passes through the third through hole and is disposed in the limiting hole. The locking lever 3 is limited by the pin to prevent the locking lever 3 from disengaging from the blade arm body 1.

[0036] In some embodiments, the tool changing arm also includes a cover plate 8 that locks the tool locking rod 3, the inclined block 4 and the longitudinal moving block 6 in the moving groove 12 and the receiving groove 11. The cover plate 8 is detachably connected to the tool arm body 1. The cover plate 8 is provided with a fourth through hole 80 for the longitudinal moving block 6 to extend out of the cover plate 8.

[0037] A tool changing mechanism, including the aforementioned tool changing arm.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tool changer arm, characterized by include: The blade arm body (1) has at least one receiving groove (11) and at least one moving groove (12) communicating with the receiving groove (11). At least one tool changing claw (2) is detachably fixed to the end of the tool arm body (1); At least one locking bar (3) is movably disposed in the moving groove (12) and the receiving groove (11) along a first direction (D1); At least one longitudinally moving block (6) is movably disposed in the receiving groove (11) along a second direction (D2) perpendicular to the first direction (D1); At least one inclined block (4) is movably disposed in the receiving groove (11) and inclinedly disposed between the locking bar (3) and the longitudinal moving block (6). One end of the inclined block (4) is pivotally connected to the locking bar (3), and the other end of the inclined block (4) is slidingly engaged with the inclined surface of the longitudinal moving block (6). And at least one reset element (7) to reset the longitudinal moving block (6).

2. The tool changer arm as described in claim 1, characterized in that, The receiving groove (11) is equipped with a slide groove (9) extending along the third direction (D3). The inclined block (4) is equipped with a roller at its end facing the longitudinal moving block (6). The roller is engaged in the slide groove (9). The third direction (D3) is perpendicular to the first direction (D1) and the second direction (D2).

3. The tool changer arm as described in claim 1, characterized in that, The longitudinal moving block (6) includes a moving block (61) and a pressing rod (62) fixed on the top of the moving block (61) and extending out of the blade body (1). The moving block (61) has an inclined surface that slides and engages with the inclined surface of the inclined block (4).

4. The tool changer arm as described in claim 3, characterized in that, The moving block (61) has a large end at a low position and a small end at a high position. The connecting surface between the large end and the small end is the inclined surface. When the large end of the moving block (61) contacts the inclined block (4), the tool changing arm is in a locked state. When the small end of the moving block (61) contacts the inclined block (4), the tool changing arm is in an unlocked state. The state of the tool changing arm can be switched by pressing the pressing rod (62).

5. The tool changer arm as described in claim 3 or 4, characterized in that, The blade arm body (1) also has at least one longitudinal moving groove (13) communicating with the receiving groove (11). The depth of the longitudinal moving groove (13) is greater than the depth of the receiving groove (11). The moving block (61) and the reset member (7) are both arranged in the longitudinal moving groove (13).

6. The tool changer arm as described in claim 1, characterized in that, The inclined block (4) has a clamping port (42) and a first through hole (43) communicating with the clamping port (42) at one end facing the locking bar (3). The locking bar (3) has a second through hole (320). The locking bar (3) is disposed in the clamping port (42) and pivotally connected to the inclined block (4) by a pin (5).

7. The tool changer arm as described in claim 1, characterized in that, The locking lever (3) includes a lever body (32) and a stop block (31) fixed to one end of the lever body (32). The lever body (32) includes a first lever body (321) connected to the stop block (31) and a second lever body (322) connected to the first lever body (321). The first lever body (321) is movably disposed in the moving groove (12), and the second lever body (322) is movably disposed in the receiving groove (11) and pivotally connected to the inclined block (4). The size of the second lever body (322) is larger than the size of the moving groove (12).

8. The tool changer arm as described in claim 1, characterized in that, The locking bar (3) includes a bar body (32) and a stop block (31) fixed at one end of the bar body (32). The bar body (32) is movably disposed in the moving groove (12) and the receiving groove (11) and is pivotally connected to the inclined block (4). The bar body (32) is provided with an elongated limiting hole. The cutter arm body (1) is provided with a third through hole communicating with the receiving groove (11), and the cutter arm also includes a pin, which passes through the third through hole and is disposed in the limiting hole.

9. The tool changer arm as described in claim 1, characterized in that, The tool changing arm also includes a cover plate (8) that locks the tool locking rod (3), the inclined block (4) and the longitudinal moving block (6) in the moving groove (12) and the receiving groove (11). The cover plate (8) is detachably connected to the tool arm body (1). The cover plate (8) is provided with a fourth through hole (80) for the longitudinal moving block (6) to extend out of the cover plate (8).

10. A tool changing mechanism, characterized in that, Includes the tool changer arm as described in any one of claims 1 to 9.

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