A tool changing arm

Abstract

The utility model discloses a kind of tool changing arms, including tool changing arm main body, at least one tool changing claw, at least one lock tool bar, at least one crank connecting rod group and at least one top driving assembly, tool changing arm main body has at least one sliding slot and at least one accommodating groove, sliding slot is communicated with accommodating groove, one end of crank connecting rod group is pivotally connected with lock tool bar one end, crank connecting rod group and lock tool bar are movably configured in sliding slot, top driving assembly is movably configured in accommodating groove, crank connecting rod group is slidably connected with top driving assembly, by actuating top driving assembly to drive crank connecting rod group to move to drive lock tool bar to tool changing claw close or away from each other. The utility model drives lock tool bar to tool changing claw close or away from each other by actuating top driving assembly to drive crank connecting rod group to move, to realize the locking or unlocking of tool, crank connecting rod group is pivotally connected with lock tool bar, avoid the abrasion generated by long time interaction between lock tool bar and drive seat, the tool changing arm structure of the utility model is simple, and machining process is less.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic tool changing devices, and specifically to a tool changing arm. 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 changer arm.

[0005] To achieve the aforementioned utility model objective, the technical solution adopted by this utility model is as follows: a tool changing arm, comprising a tool arm body, at least one tool changing claw, at least one tool locking rod, at least one crank connecting rod assembly, and at least one actuating component. The tool arm body has at least one sliding groove and at least one receiving groove, the sliding groove communicating with the receiving groove. One end of the crank connecting rod assembly is pivotally connected to one end of the tool locking rod. The crank connecting rod assembly and the tool locking rod are movably disposed in the sliding groove. The actuating component is movably disposed in the receiving groove. The crank connecting rod assembly is slidably connected to the actuating component. By actuating the actuating component, the crank connecting rod assembly is moved to drive the tool locking rod toward or away from the tool changing claw.

[0006] In some embodiments, the crank-connecting rod assembly includes a first connecting rod, a second connecting rod, and two connecting posts. One end of the first connecting rod is slidably connected to the actuating assembly via one of the connecting posts, and the other end of the first connecting rod is pivotally connected to one end of the locking lever. One end of the second connecting rod is slidably connected to the actuating assembly via the other connecting post.

[0007] In some embodiments, the actuating assembly includes a sliding limiting box having a limiting groove, wherein both the first connecting rod and the second connecting rod are movably configured in the limiting groove;

[0008] The limiting box is provided with a first limiting groove and a second limiting groove on the groove walls opposite to the limiting groove, respectively. One end of the first connecting rod is provided with a second through hole. The first connecting rod is slidably connected to the sliding limiting box by a connecting post passing through the first limiting groove and the second through hole. One end of the second connecting rod is provided with a third through hole. The second connecting rod is slidably connected to the sliding limiting box by another connecting post passing through the second limiting groove and the third through hole.

[0009] In some embodiments, the first limiting slide and the second limiting slide are symmetrically arranged, and along the height direction of the limiting box, the first limiting slide and the second limiting slide gradually converge towards the center line of the slide wall.

[0010] In some embodiments, the actuating assembly further includes an actuating pin fixed to the bottom of the sliding limit box, the actuating pin extending out of the blade arm body, and the sliding limit box being moved by pressing the actuating pin.

[0011] In some embodiments, the tool changer arm further includes a cover plate for securing the crank-connecting rod assembly and the jacking assembly within the tool arm body, the cover plate being bolted to the tool arm body.

[0012] In some embodiments, the cover plate has a through hole, and the top moving pin is movably disposed in the through hole and extends out of the cover plate from the through hole.

[0013] In some embodiments, the sliding limiting box is detachably fitted with a top plate at the top of the limiting groove;

[0014] The jacking assembly also includes an elastic element for resetting the sliding limit box, the elastic element being disposed between the top plate and the bottom wall of the receiving groove.

[0015] In some embodiments, one end of the locking lever is provided with a movable opening and a connecting hole communicating with the movable opening, and the other end of the first connecting rod is provided with a first through hole. The other end of the first connecting rod is movably disposed in the movable opening and is pivotally connected to the locking lever by a pin passing through the connecting hole and the first through hole.

[0016] In some embodiments, a shaft hole is provided in the middle part of the cutter arm body.

[0017] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0018] 1. This utility model uses an actuating push assembly to drive the crank connecting rod assembly to move, thereby driving the locking rod to move closer to or away from the tool changing claw, thus locking or unlocking the tool. The crank connecting rod assembly is pivotally connected to the locking rod, avoiding wear caused by long-term interaction between the locking rod and the drive seat.

[0019] 2. This utility model only provides a sliding 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 the cutter arm. Attached Figure Description

[0020] Figure 1 This is an exploded view of the components of the tool changer arm of this utility model. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Reference Figure 1 This utility model 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 crank connecting rod assembly, and at least one actuating component. The tool arm body 1 has at least one sliding groove 11 and at least one receiving groove 12, the sliding groove 11 and the receiving groove 12 are connected, one end of the crank connecting rod assembly is pivotally connected to one end of the tool locking rod 3, the crank connecting rod assembly and the tool locking rod 3 are movably disposed in the sliding groove 11, the actuating component is movably disposed in the receiving groove 12, the crank connecting rod assembly and the actuating component are slidably connected, and the crank connecting rod assembly is moved by actuating the actuating component to drive the tool locking rod 3 to move closer to or away from the tool changing claw 2.

[0028] This invention uses an actuating push assembly to move the crank-connecting rod assembly to drive the locking rod 3 to move closer to or away from the tool changing claw 2, thereby locking or unlocking the tool. The crank-connecting rod assembly is pivotally connected to the locking rod, avoiding wear caused by long-term interaction between the locking rod 3 and the drive seat. At the same time, this invention only provides a sliding groove 11 and a receiving groove 12 on the tool arm body 1, which has a simple structure, fewer processing steps, and reduces the processing difficulty of the tool changing arm.

[0029] In some embodiments, the crank-connecting rod assembly includes a first connecting rod 41, a second connecting rod 42, and two connecting posts 43. One end of the first connecting rod 41 is slidably connected to the actuating assembly via a connecting post 43, and the other end of the first connecting rod 41 is pivotally connected to one end of the locking rod 3. One end of the second connecting rod 42 is slidably connected to the actuating assembly via another connecting post 43.

[0030] In some embodiments, the actuating assembly includes a sliding limit box 51 having a limiting groove 510, in which the first link 41 and the second link 42 are both movably configured;

[0031] The limiting box 51 has a first limiting groove 511 and a second limiting groove 512 respectively provided on the groove walls opposite to the limiting groove 510. One end of the first connecting rod 41 is provided with a second through hole 412. The first connecting rod 41 is slidably connected to the sliding limiting box 51 by a connecting post 43 passing through the first limiting groove 511 and the second through hole 412. One end of the second connecting rod 42 is provided with a third through hole 520. The second connecting rod 42 is slidably connected to the sliding limiting box 51 by another connecting post 43 passing through the second limiting groove 512 and the third through hole 520.

[0032] In some embodiments, the first limiting slide 511 and the second limiting slide 512 are symmetrically arranged, and along the height direction of the limiting box 51, the first limiting slide 511 and the second limiting slide 512 gradually converge towards the center line of the groove wall.

[0033] In some embodiments, the actuating assembly further includes an actuating pin 52, which is fixed to the bottom of the sliding limit box 51 and extends out of the blade arm body 1. The sliding limit box 51 is moved by pressing the actuating pin 52.

[0034] In some embodiments, the tool changer arm also includes a cover plate 81 for sealing the crank connecting rod assembly and the push assembly within the tool arm body 1, the cover plate 81 being bolted to the tool arm body 1.

[0035] In some embodiments, the cover plate 81 has a through hole 80, and the top pin 52 is movably disposed in the through hole 80 and extends out of the cover plate 81 from the through hole 80.

[0036] In some embodiments, the sliding limit box 51 has a top plate 53 detachably mounted on the top of the limit groove 510;

[0037] The actuating assembly also includes an elastic element 54 for resetting the sliding limit box 51, the elastic element 54 being disposed between the top plate 53 and the bottom wall of the receiving groove 12.

[0038] In some embodiments, one end of the locking lever 3 is provided with a movable port 31 and a connecting hole 32 communicating with the movable port 31, and the other end of the first connecting rod 41 is provided with a first through hole 411. The other end of the first connecting rod 41 is movably disposed in the movable port 31 and is pivotally connected to the locking lever 3 by a pin 7 passing through the connecting hole 32 and the first through hole 411.

[0039] In some embodiments, a shaft hole 10 is provided in the middle part of the cutter arm body 1.

[0040] 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 The device includes a cutter arm body (1), at least one tool changing claw (2), at least one tool locking rod (3), at least one crank connecting rod assembly, and at least one actuating assembly. The cutter arm body (1) has at least one sliding groove (11) and at least one receiving groove (12). The sliding groove (11) communicates with the receiving groove (12). One end of the crank connecting rod assembly is pivotally connected to one end of the tool locking rod (3). The crank connecting rod assembly and the tool locking rod (3) are movably disposed in the sliding groove (11). The actuating assembly is movably disposed in the receiving groove (12). The crank connecting rod assembly is slidably connected to the actuating assembly. By actuating the actuating assembly, the crank connecting rod assembly is moved to drive the tool locking rod (3) to move closer to or away from the tool changing claw (2).

2. The tool changer arm of claim 1, wherein, The crank-connecting rod assembly includes a first connecting rod (41), a second connecting rod (42), and two connecting posts (43). One end of the first connecting rod (41) is slidably connected to the actuating assembly through one of the connecting posts (43), and the other end of the first connecting rod (41) is pivotally connected to one end of the locking rod (3). One end of the second connecting rod (42) is slidably connected to the actuating assembly through the other connecting post (43).

3. The tool changer arm of claim 2, wherein, The top-moving assembly includes a sliding limit box (51), which has a limit groove (510). The first connecting rod (41) and the second connecting rod (42) are both movably arranged in the limit groove (510). The limiting box (51) is provided with a first limiting groove (511) and a second limiting groove (512) on the groove wall opposite to the limiting groove (510). One end of the first connecting rod (41) is provided with a second through hole (412). The first connecting rod (41) is slidably connected to the sliding limiting box (51) by a connecting post (43) passing through the first limiting groove (511) and the second through hole (412). One end of the second connecting rod (42) is provided with a third through hole (520). The second connecting rod (42) is slidably connected to the sliding limiting box (51) by another connecting post (43) passing through the second limiting groove (512) and the third through hole (520).

4. The tool changer arm of claim 3, wherein, The first limiting slide (511) and the second limiting slide (512) are symmetrically arranged, and along the height direction of the limiting box (51), the first limiting slide (511) and the second limiting slide (512) gradually converge towards the center line of the groove wall.

5. The tool changer arm of claim 3, wherein, The top-moving assembly also includes a top-moving pin (52), which is fixed to the bottom of the sliding limit box (51). The top-moving pin (52) extends out of the blade arm body (1), and the sliding limit box (51) is driven to move by pressing the top-moving pin (52).

6. The tool changer arm of claim 5, wherein, The tool changer also includes a cover plate (81) for locking the crank connecting rod assembly and the jacking assembly in the tool arm body (1), the cover plate (81) being connected to the tool arm body (1) by bolts.

7. The tool changer arm of claim 6, wherein, The cover plate (81) has a through hole (80), and the top moving pin (52) is movably disposed in the through hole (80) and extends out of the cover plate (81) from the through hole (80).

8. The tool changer arm as described in claim 3, characterized in that, The sliding limiting box (51) has a top plate (53) detachably installed on the top of the limiting groove (510); The actuating assembly also includes an elastic element (54) for resetting the sliding limit box (51), the elastic element (54) being disposed between the top plate (53) and the bottom wall of the receiving groove (12).

9. The tool changer arm of claim 2, wherein, One end of the locking bar (3) is provided with a movable opening (31) and a connecting hole (32) communicating with the movable opening (31). The other end of the first connecting rod (41) is provided with a first through hole (411). The other end of the first connecting rod (41) is movably disposed in the movable opening (31) and is pivotally connected to the locking bar (3) by a pin (7) passing through the connecting hole (32) and the first through hole (411).

10. The tool changer arm according to any one of claims 1 to 9, characterized in that The main body (1) of the cutter arm is provided with a shaft hole (10) in the middle part.

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