A tool changing arm and a tool changing mechanism

Abstract

The utility model discloses a kind of tool changing arms, including tool changing arm main body, tool changing claw, lock tool rod and push assembly, tool changing arm main body has accommodating groove, push assembly is movably configured in accommodating groove, push assembly includes inclined surface sliding cooperation's longitudinal moving block and transverse moving block, transverse moving block is connected with lock tool rod, the end surface of transverse moving block towards longitudinal moving block is provided with sliding through slot, limit protrusion is set in the opening end of sliding through slot in transverse moving block, longitudinal moving block part is configured in sliding through slot and longitudinal moving block is provided with the limit sliding slot containing limit protrusion;Push assembly further includes the first elastic member and baffle of making transverse moving block reset, and transverse moving block is provided with reset slot, and the first elastic member and baffle are configured in reset slot.The utility model drives lock tool rod to move in the direction of far from or close to tool changing claw by the transverse moving block and longitudinal moving block of inclined surface sliding cooperation, avoid the abrasion generated by long time interaction between lock tool rod and drive seat.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic tool changing devices, 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] A utility model patent published in Taiwan, China, with patent publication number TWM597197U, discloses a "non-impact tool changing device." This patent technology discloses a drive unit that drives a locking lever. 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 within the fixed base, and a limiting element with an elongated limiting groove passing through the drive seat. The locking lever and the drive seat are in contact at an angle. While the combination of the aforementioned components allows the locking lever to be displaced via the angled guide during the up-and-down movement of the drive seat to achieve the purpose of releasing and locking the tool, this patent technology has the following structural shortcomings: 1. The angled contact between the locking lever and the drive seat is prone to excessive wear under prolonged interaction; 2. This patent technology involves a recessed receiving groove on the top surface of the main body for placing the locking lever, and another recessed receiving groove on the locking lever for placing a spring. A cover plate then covers the locking lever and restricts 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 above-mentioned utility model objectives, the technical solution adopted by this utility model is as follows: a tool changing arm, including a tool arm body, at least one tool changing claw, at least one tool locking rod, and at least one pushing component. The tool arm body has at least one receiving groove, and the pushing component is movably disposed in the receiving groove. The pushing component includes a longitudinal moving block and a transverse moving block that slide and engage with inclined surfaces. The transverse moving block is connected to the tool locking rod. The end face of the transverse moving block facing the longitudinal moving block is provided with a sliding groove. The transverse moving block is provided with a limiting protrusion at the opening end of the sliding groove. The longitudinal moving block is partially disposed in the sliding groove and is provided with a limiting groove that accommodates the limiting protrusion. The pushing assembly further includes a first elastic element that resets the lateral moving block. The lateral moving block is provided with a reset groove, and the first elastic element is disposed in the reset groove. The pushing assembly also includes a stop block disposed in the reset groove. The stop block is fixed in the cutter arm body and contacts the first elastic element.

[0006] In some embodiments, the stop is a protrusion fixed to the bottom wall of the receiving groove and protruding from the bottom wall.

[0007] In some embodiments, the tool changer arm further includes a cover plate that locks the push assembly in the receiving slot;

[0008] The stop block is a metal block with threaded holes, and the stop block is fixed to the inside of the cover plate by bolts passing through the cover plate.

[0009] In some embodiments, the longitudinal moving block includes a push block and an unlocking pin connected as one piece, and the push block is provided with a limiting groove that is at an acute angle to the center line of the push block.

[0010] In some embodiments, the cutter arm body or the cover plate is provided with a movable through hole, through which the unlocking pin extends out of the cutter arm body.

[0011] In some embodiments, the end face of the lateral moving block opposite to the longitudinal moving block is provided with a threaded hole; The locking lever includes a lever body and a stop block fixed to one end of the lever body, and the other end of the lever body is provided with an external thread that mates with the threaded hole.

[0012] In some embodiments, the cutter arm body is further provided with at least one cutter bar channel, the cutter bar channel being connected to the receiving groove, and the bar being movably disposed in the cutter bar channel.

[0013] In some embodiments, the actuating component further includes a second elastic element that resets the longitudinally moving block.

[0014] In some embodiments, the actuating assembly further includes a protective cylinder comprising a cylinder body and a connecting outer edge fixed to the top of the cylinder body, wherein the longitudinal moving block and the second elastic element are movably disposed within the cylinder body cavity of the cylinder body.

[0015] A tool changing mechanism, including the tool changing arm described above.

[0016] 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 a lateral moving block and a longitudinal moving block with inclined sliding cooperation to drive the locking bar to move away from or towards the tool changing claw, thereby locking or unlocking the tool and avoiding wear caused by long-term interaction between the locking bar and the drive seat. 2. This utility model only provides a tool holder channel and a receiving groove on the main body of the tool arm, which has a simple structure and fewer processing steps, reducing the processing difficulty of changing the tool arm. At the same time, the pushing component of this utility model has a simple structure, fewer assembly and disassembly steps, and low manufacturing cost. Attached Figure Description

[0017] Figure 1 This is an exploded view of the components of the tool changing arm of this utility model; Figure 2 This is a perspective view of the pushing component of this utility model; Figure 3 This is a perspective view of the movable block of this utility model. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] Reference Figures 1 to 3 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, and at least one pushing component. The tool arm body 1 is generally a long, flat body. The tool locking rod 3 is movably disposed within the tool arm body 1 along the length direction of the tool arm body 1 and forms a clamping space 20 for clamping the tool with the tool changing claw 2. The tool arm body 1 has at least one receiving groove 12. The pushing component is movably disposed in the receiving groove 12. By actuating the pushing component, the tool locking rod 3 is moved toward or away from the tool changing claw 2 to lock or unlock the tool.

[0025] In some embodiments, the pushing component includes a longitudinal moving block 5 and a transverse moving block 4 with inclined sliding engagement. The transverse moving block 4 is connected to the locking bar 3. The end face of the transverse moving block 4 facing the longitudinal moving block 5 is provided with a sliding groove 42. The transverse moving block 4 is provided with a limiting protrusion 43 at the opening end of the sliding groove 42. The longitudinal moving block 5 is partially disposed in the sliding groove 42 and is provided with a limiting groove 510 to accommodate the limiting protrusion 43. By actuating the longitudinal moving block 5 to move along the thickness direction of the cutter arm body 1, the transverse moving block 4 is pushed to move along the length direction of the cutter arm body 1, thereby driving the locking bar 3 to move.

[0026] This invention uses a lateral and longitudinal moving block with inclined sliding cooperation to drive the locking bar to move away from or towards the tool changing claw, thereby locking or unlocking the tool and avoiding wear caused by long-term interaction between the locking bar and the drive seat.

[0027] In some embodiments, the pushing component further includes a first elastic member 61 that resets the transverse moving block 4. The transverse moving block 4 is provided with a reset groove 40. The first elastic member 61 is disposed in the reset groove 40. The pushing component further includes a stop block 7 disposed in the reset groove 40. The stop block 7 is fixed in the cutter arm body 1 and contacts the first elastic member 61.

[0028] In some embodiments, the stop 7 is a protrusion fixed to the bottom wall of the receiving groove 12 and protruding from the bottom wall.

[0029] In some embodiments, the tool changer arm also includes a cover plate 9 that locks the push assembly in the receiving groove 12; the stop block 7 is a metal block with threaded holes and is fixed to the inside of the cover plate 9 by bolts passing through the cover plate 9.

[0030] In some embodiments, the longitudinal moving block 5 includes a push block 51 and an unlocking pin 52 connected as one piece, and the push block 51 is provided with a limiting groove 510 that is at an acute angle to the center line of the push block 51.

[0031] In some embodiments, the cutter arm body 1 or the cover plate 9 is provided with a movable through hole, and the unlocking pin 52 extends out of the cutter arm body 1 through the movable through hole. By pressing the unlocking pin 52, the longitudinal moving block 5 moves along the thickness direction of the cutter arm body 1.

[0032] In some embodiments, the actuating component also includes a second elastic element 62 that resets the longitudinally moving block 5.

[0033] In some embodiments, the actuating assembly further includes a protective cylinder 8, which includes a cylinder body 82 and a connecting outer edge 81 fixed to the top of the cylinder body 82, with a longitudinal moving block 5 and a second elastic member 62 movably disposed within the cylinder cavity of the cylinder body 82.

[0034] Furthermore, the cover plate 9 is provided with a through hole 90, the diameter of which is smaller than the outer diameter of the connecting outer edge 81. The connecting outer edge 81 is disposed in the receiving groove 12, and the cylinder 82 passes through the through hole 90 and is disposed on the outside of the cutter arm body 1.

[0035] In some embodiments, the locking lever 3 includes a lever 31 connected to the transverse moving block 4 and a stop block 32 fixed to one end of the lever 31, the stop block 32 being disposed in the clamping space 20.

[0036] Furthermore, the end face of the transverse moving block 4 opposite to the longitudinal moving block 5 is provided with a threaded hole 41, and the other end of the rod body 31 is provided with an external thread that mates with the threaded hole 41.

[0037] In some embodiments, the cutter arm body 1 is further provided with at least one cutter bar channel 11, which is connected to the receiving groove 12, and the rod 31 is movably disposed in the cutter bar channel 11.

[0038] This utility model only provides a tool holder channel 11 and a receiving groove 12 on the main body 1 of the tool arm. The structure is simple, the processing steps are few, and the processing difficulty of changing the tool arm is reduced. At the same time, the pushing component of this utility model has a simple structure, fewer assembly and disassembly steps, and low manufacturing cost.

[0039] This utility model also provides a tool changing mechanism, including the aforementioned tool changing arm.

[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 in that, The device includes a cutter arm body (1), at least one cutter changing claw (2), at least one locking bar (3), and at least one pushing component. The cutter arm body (1) has at least one receiving groove (12). The pushing component is movably disposed in the receiving groove (12). The pushing component includes a longitudinal moving block (5) and a transverse moving block (4) with inclined sliding engagement. The transverse moving block (4) is connected to the locking bar (3). The transverse moving block (4) has a sliding through groove (42) on its end face facing the longitudinal moving block (5). The transverse moving block (4) has a limiting protrusion (43) at the opening end of the sliding through groove (42). The longitudinal moving block (5) is partially disposed in the sliding through groove (42) and the longitudinal moving block (5) has a limiting groove (510) for accommodating the limiting protrusion (43). The pushing assembly further includes a first elastic element (61) for resetting the transverse moving block (4), the transverse moving block (4) is provided with a reset groove (40), the first elastic element (61) is disposed in the reset groove (40), the pushing assembly further includes a stop block (7) disposed in the reset groove (40), the stop block (7) is fixed in the cutter arm body (1), and the stop block (7) is in contact with the first elastic element (61).

2. The tool changer arm as described in claim 1, characterized in that, The stop block (7) is a protrusion fixed on the bottom wall of the receiving groove (12) and protruding from the bottom wall.

3. The tool changer arm as described in claim 1, characterized in that, The tool changer also includes a cover plate (9) that locks the push assembly in the receiving slot (12). The stop block (7) is a metal block with a threaded hole, and the stop block (7) is fixed to the inside of the cover plate (9) by bolts passing through the cover plate (9).

4. The tool changer arm as described in claim 3, characterized in that, The longitudinal moving block (5) includes a push block (51) and an unlocking pin (52) connected as one unit. The push block (51) is provided with a limiting groove (510) that is at an acute angle to the center line of the push block (51).

5. The tool changer arm as described in claim 4, characterized in that, The blade arm body (1) or the cover plate (9) is provided with a movable through hole, and the unlocking pin (52) extends out of the blade arm body (1) through the movable through hole.

6. The tool changer arm as described in claim 1, characterized in that, The end face of the transverse moving block (4) opposite to the longitudinal moving block (5) is provided with a threaded hole (41). The locking lever (3) includes a lever body (31) and a stop block (32) fixed at one end of the lever body (31). The other end of the lever body (31) is provided with an external thread that mates with the threaded hole (41).

7. The tool changer arm as described in claim 6, characterized in that, The main body of the cutter arm (1) is also provided with at least one cutter bar channel (11), the cutter bar channel (11) is connected to the receiving groove (12), and the rod (31) is movably disposed in the cutter bar channel (11).

8. The tool changer arm as described in claim 1, characterized in that, The pushing component also includes a second elastic element (62) that resets the longitudinal moving block (5).

9. The tool changer arm as described in claim 8, characterized in that, The pushing assembly also includes a protective cylinder (8), which includes a cylinder body (82) and a connecting outer edge (81) fixed to the top of the cylinder body (82). The longitudinal moving block (5) and the second elastic element (62) are movably disposed within the cylinder cavity of the cylinder body (82).

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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