Tool changing structure of tool magazine

Abstract

The tool changing structure comprises a tool arm body, at least one tool changing claw, at least one tool locking rod and at least one pushing assembly, at least one moving hole is formed in the tool arm body in the length direction, and the tool locking rod is arranged in the moving hole in a penetrating mode and can move in the moving hole in the first direction. The tool arm body is provided with at least one containing groove communicated with the moving hole in the thickness direction. The pushing assembly comprises a first spring, a rod sleeve, a pushing piece and a second spring, the first spring and the rod sleeve are movably arranged on the tool locking rod in a sleeving mode, the pushing piece is arranged in the containing groove and moves in the second direction in the containing groove, the second spring enables the pushing piece to reset, the pushing piece is provided with an obliquely-arranged pushing part, and when the tool locking rod makes contact with the pushed low position, the tool changing structure of the tool magazine is in a locked state. When the tool locking rod makes contact with the high position of the pushing part, the tool changing structure of the tool magazine is in an unlocking state, and the states of the tool changing structure of the tool magazine are switched by actuating the pushing part. The tool changing structure of the tool magazine is simple in structure and convenient to assemble and disassemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic tool changer technical field, concretely relates to a tool magazine's tool changing structure. BACKGROUND

[0002] The tool changing structure of the automatic tool magazine of the machining machine tool is used for quickly exchanging the tool bars separately arranged at the tool magazine and the machining spindle, so as to improve work efficiency, therefore, the tool changing structure of the tool magazine must have the functions of quickly clamping or releasing the tool bar at the clamping position of the tool bar, and can prevent the tool bar from being released in the clamped state.

[0003] The utility model discloses a tool changing arm of machining machine's tool changer discloses a tool changing arm of machining machine's tool changer, and it includes two arm parts, the tool bar, longitudinal displacement block and transverse displacement block, longitudinal displacement block and transverse displacement block are mutually embedded together to make longitudinal displacement block can be displaced in transverse displacement block up and down, longitudinal displacement block and transverse displacement block have a plurality of abutting surfaces, and each abutting surface is in mutual parallel bevel contact, and each longitudinal displacement block is displaced up and down and makes the traction of a plurality of abutting surfaces to make each transverse displacement block close or leave the direction of the combination part to make the other end of each tool bar can certainly enter the inside of the set position of the combination part, or can certainly leave the inside of the combination part.

[0004] Admittedly, the tool changing arm can displace the tool bar to achieve the purpose of releasing the tool and clamping the tool under the cooperation of the longitudinal displacement block and the transverse displacement block, but the structure of the longitudinal displacement block and the transverse displacement block is complex, the assembly and disassembly process is more, and the manufacturing cost is higher. Meanwhile, the through hole, the channel, the first accommodating chamber, the second accommodating chamber and the perforation are respectively formed in the two arm parts, and the machining process is complex. UTILITY MODEL CONTENTS

[0005] To solve at least one technical problem of the prior art, the utility model provides a tool changing structure of a tool magazine.

[0006] To achieve the above-mentioned utility model purposes, the utility model adopts the technical scheme of a tool changing structure of a tool magazine, which comprises a tool arm body, at least one tool changing claw, at least one tool bar locking rod and at least one pushing assembly, the tool arm body is provided with at least one moving hole along the length direction, the tool bar locking rod is arranged in the moving hole and can move in the moving hole along the first direction, and the tool arm body is provided with at least one accommodating groove along the thickness direction and communicated with the moving hole.

[0007] The pushing assembly comprises a first spring and a sleeve movably sleeved on the lock rod, a pushing piece arranged in the accommodating groove and moving in a second direction, and a second spring for resetting the pushing piece, the pushing piece has an inclined pushing portion, when the lock rod contacts with a low position of the pushing portion, the tool changing structure of the tool magazine is in a locked state, when the lock rod contacts with a high position of the pushing portion, the tool changing structure of the tool magazine is in an unlocked state, the state of the tool changing structure of the tool magazine is switched by actuating the pushing piece, and the second direction is perpendicular to the first direction.

[0008] In some embodiments, the pushing piece comprises a pushing block and a pressing pin fixed on the top surface of the pushing block, the pushing portion is an inclined slot opened in the pushing block in the second direction, and the end of the lock rod is movably arranged in the inclined slot.

[0009] In some embodiments, the inclined slot is composed of an inclined slot bottom and slot walls arranged on both sides of the slot bottom, the slot width between the two slot walls is W1, the end of the lock rod has a matching portion, the width of the matching portion is W2, and W1>W2.

[0010] In some embodiments, the shape of the inclined slot is matched with the shape of the matching portion, and the matching portion is in point contact or surface contact with the slot bottom.

[0011] In some embodiments, the tool changing structure of the tool magazine further comprises a cover plate, the cover plate is fixed on the tool arm body by screws and blocks the pushing piece in the accommodating groove, the cover plate is provided with a through hole, and the pressing pin extends out of the tool arm body through the through hole.

[0012] In some embodiments, the lock rod comprises a rod body and a stop block fixed on the beginning end of the rod body, the first spring and the sleeve are arranged in the moving hole and movably sleeved on the rod body, and the sleeve is relatively fixed with the tool arm body when the sleeve is arranged in the moving hole.

[0013] In some embodiments, the tool arm body is provided with a fixed hole in communication with the moving hole, the outer wall of the sleeve is provided with a circle of positioning grooves, and the sleeve is relatively fixed with the tool arm body by a second limiting piece arranged in the fixed hole and arranged in the positioning grooves.

[0014] In some embodiments, the first rod body connected with the block, the second rod body connected with the first rod body, the outer diameter of the second rod body is smaller than the outer diameter of the first rod body, the part where the second rod body connects with the first rod body constitutes a spring abutting part, the first spring and the rod sleeve are sleeved on the first rod body, and the first spring is arranged between the spring abutting part and the rod sleeve.

[0015] In some embodiments, the tool changing structure of the tool magazine is further provided with an anti-disengagement assembly for preventing the lock rod from disengaging from the moving hole, the anti-disengagement assembly comprises an anti-disengagement hole formed in the tool arm body and communicating with the moving hole, a long strip-shaped anti-disengagement groove formed in the lock rod, and a first limiting member penetrating the anti-disengagement hole, and the end of the first limiting member is arranged in the anti-disengagement groove.

[0016] In some embodiments, when the tool changing structure of the tool magazine is in the locked state, the side of the anti-disengagement groove close to the accommodating groove is in contact with the first limiting member, and when the tool changing structure of the tool magazine is in the locked state, the side of the anti-disengagement groove away from the accommodating groove is in contact with the first limiting member.

[0017] Due to the above technical scheme, the utility model has the following advantages compared with the prior art:

[0018] The utility model only sets up moving hole, accommodating groove, anti-disengagement hole and fixed hole on the tool arm body, and the moving hole, the anti-disengagement hole and the fixed hole are all circular holes with constant diameter, so the structure is simple, the machining process is less, and the machining difficulty of the tool changing structure of the tool magazine is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the explosion view of the tool changing structure of the tool magazine of the utility model;

[0020] Figure 2 It is the perspective view of the utility model's pusher. DETAILED DESCRIPTION

[0021] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0025] In addition, the terms "mount", "set", "provided with", "connected", "connected", "sleeved" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0027] Referring to Figure 1 and Figure 2 The present application provides a tool magazine tool changing structure, which comprises a tool arm main body 1, at least one tool changing claw 2, at least one tool locking rod 3 and at least one pushing assembly.

[0028] The tool changing claws 2 are fixed at the ends of the tool arm body 1 and form clamping spaces 20 with the tool arm body 1 to clamp tools. In the embodiment, the tool changing claws 2 are two, and are respectively fixed at the two ends of the tool arm body 1. The two tool changing claws 2 form two clamping spaces 20 with the tool arm body 1, and the two clamping spaces 20 are opposite in opening direction. The tool changing claws 2 can be integrally formed with the tool arm body 1, or can be fixed on the tool arm body 1 by bolts.

[0029] The tool arm body 1 is generally a rectangular plate body with a certain thickness. At least one moving hole 11 is formed in the tool arm body 1 along the length direction, the moving hole 11 is communicated with the clamping space 20, and the lock tool rod 3 is arranged in the moving hole 11 and can move in the moving hole 11 along the first direction D1.

[0030] The tool arm body 1 is further provided with at least one accommodating groove 12 communicated with the moving hole 11 along the thickness direction. The pushing assembly includes a first spring 41 and a rod sleeve 42 movably sleeved on the lock tool rod 3, a pushing piece 43 arranged in the accommodating groove 12 and moving in the accommodating groove 12 along the second direction D2, and a second spring 44 for returning the pushing piece 43. The pushing piece 43 has an inclined pushing portion 4311. When the lock tool rod 3 contacts the low position of the pushing portion 4311, the tool changing structure of the tool magazine is in the locked state. When the lock tool rod 3 contacts the high position of the pushing portion 4311, the tool changing structure of the tool magazine is in the unlocked state. The state of the tool changing structure of the tool magazine is switched by actuating the pushing piece 43. The second direction D2 is perpendicular to the first direction D1.

[0031] In some embodiments, the pushing piece 43 includes a pushing block 431 and a pressing pin 432 fixed on the top surface of the pushing block 431. The pushing portion 4311 is an inclined groove formed in the pushing block 431 along the second direction D2, and the end of the lock tool rod 3 is movably arranged in the inclined groove. The pressing pin 432 extends out of the tool arm body 1 along the second direction D2. The pushing piece 43 can be pushed to move along the second direction D2 by pressing the pressing pin 432, so as to change the position where the pushing portion 4311 contacts the lock tool rod 3. Specifically, when the pressing pin 432 is not pressed, the low position of the pushing portion 4311 contacts the lock tool rod 3, and the tool changing structure of the tool magazine is in the locked state. When the pressing pin 432 is pressed, the pushing piece 43 moves along the second direction D2, so that the high position of the pushing portion 4311 contacts the lock tool rod 3, and the tool changing structure of the tool magazine is in the unlocked state.

[0032] The second spring 44 is arranged in the accommodating groove 12 and below the pushing block 431. After the pressing pin 432 is pressed, the second spring 44 is compressed. After the pressing force on the pressing pin 432 is removed, the pushing piece 43 is returned under the elastic restoring force of the second spring 44.

[0033] Further, the tool changing structure of the tool magazine further comprises a cover plate 5 fixed on the tool arm body 1 by screws 6 and blocking the pusher 43 in the accommodating groove 12, the cover plate 5 is provided with a through hole, and the pressing pin 432 extends out of the tool arm body 1 through the through hole.

[0034] In some embodiments, the inclined groove is composed of an inclined groove bottom and groove walls arranged on both sides of the groove bottom, the width between the two groove walls is W1, the end of the tool locking rod 3 is provided with a matching part, the width of the matching part is W2, and W1> W2.

[0035] In some embodiments, the shape of the matching part is matched with the shape of the inclined groove, and the matching part is in point contact or surface contact with the groove bottom.

[0036] In some embodiments, the tool locking rod 3 comprises a rod body 31 and a stop block 32 fixed at the beginning of the rod body 31, the first spring 41 and the rod sleeve 42 are arranged in the moving hole 11 and movably sleeved on the rod body 31, and the rod sleeve 42 is relatively fixed with the tool arm body 1 when the rod sleeve 42 is arranged in the moving hole 11.

[0037] In some embodiments, the tool arm body 1 is provided with a fixed hole 14 communicating with the moving hole 11, the outer wall of the rod sleeve 42 is provided with a circle of positioning grooves 420, and the rod sleeve 42 is relatively fixed with the tool arm body 1 by the second limiting part 7 arranged in the fixed hole 14 and arranged in the positioning grooves 420.

[0038] In some embodiments, the rod body 31 comprises a first rod body 311 connected with the stop block 32 and a second rod body 312 connected with the first rod body 311, the outer diameter of the second rod body 312 is smaller than that of the first rod body 311, the part where the second rod body 312 is connected with the first rod body 311 constitutes a spring abutting part, the first spring 41 and the rod sleeve 42 are sleeved on the first rod body 311, and the first spring 41 is arranged between the spring abutting part and the rod sleeve 42, so that the first spring 41 is compressed when the tool changing structure of the tool magazine is in the locked state.

[0039] In some embodiments, the tool changing structure of the tool magazine is further provided with an anti-disengagement assembly for preventing the tool locking rod 3 from disengaging from the moving hole 11, the anti-disengagement assembly comprises an anti-disengagement hole 13 arranged on the tool arm body 1 and communicating with the moving hole 11, a long strip-shaped anti-disengagement groove 3120 arranged on the tool locking rod 3, and a first limiting part 8 arranged in the anti-disengagement hole 13, the end of the first limiting part 8 is arranged in the anti-disengagement groove 3120, when the tool changing structure of the tool magazine is in the locked state, the side of the anti-disengagement groove 3120 close to the accommodating groove 12 is in contact with the first limiting part 8, so that when the tool changing structure of the tool magazine is switched from the locked state to the unlocked state, the tool locking rod 3 moves in the first direction D1 towards the side close to the accommodating groove 12, and therefore, when the tool changing structure of the tool magazine is in the locked state, the side of the anti-disengagement groove 3120 away from the accommodating groove 12 is in contact with the first limiting part 8.

[0040] In the embodiment, the anti-disengagement groove 3120 is arranged on the second rod body 312.

[0041] Further, the middle part of the tool arm body 1 is provided with a shaft connecting hole 10. In the embodiment, the tool changing structure of the tool magazine is provided with two moving holes 11, and the two moving holes 11 are centrally symmetrically arranged with the axis of the shaft connecting hole 10 as the center line.

[0042] The utility model only sets up the moving hole 11, the accommodating groove 12, the anti-disengagement hole 13 and the fixed hole 14 on the tool arm body 1, and the moving hole 11, the anti-disengagement hole 13 and the fixed hole 14 are all the circular holes with unchangeable diameter, which is simple in structure, less in machining procedures, reduces the machining difficulty of the tool changing structure of the tool magazine, and meanwhile, the utility model has simple push assembly structure, less in assembling and disassembling procedures and low in manufacturing cost.

[0043] The above description of the disclosed embodiments enables those skilled in the art to carry out or use the utility model. Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the above-described embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tool changing structure for a tool magazine, characterized in that, The tool includes 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) has at least one moving hole (11) along its length direction. The tool locking rod (3) passes through the moving hole (11) and can move along the first direction (D1) in the moving hole (11). The tool arm body (1) has at least one receiving groove (12) communicating with the moving hole (11) along its thickness direction. The pushing assembly includes a first spring (41) and a sleeve (42) movably sleeved on the locking bar (3), a pushing member (43) disposed in the receiving groove (12) and moving in the receiving groove (12) along the second direction (D2), and a second spring (44) for resetting the pushing member (43). The pushing member (43) has an inclined pushing part (4311). When the locking bar (3) is in low contact with the pushing part (4311), the tool changing structure of the tool magazine is in a locked state. When the locking bar (3) is in high contact with the pushing part (4311), the tool changing structure of the tool magazine is in an unlocked state. The state of the tool changing structure of the tool magazine is switched by actuating the pushing member (43). The second direction (D2) is perpendicular to the first direction (D1).

2. The tool changing structure of the tool magazine as described in claim 1, characterized in that, The pusher (43) includes a push block (431) and a pressing pin (432) fixed on the top surface of the push block (431). The push part (4311) is an inclined groove opened in the push block (431) along the second direction (D2). The end of the locking bar (3) is movably disposed in the inclined groove.

3. The tool changing structure of the tool magazine as described in claim 2, characterized in that, The inclined groove consists of an inclined groove bottom and groove walls on both sides of the groove bottom. The groove width between the two groove walls is W1. The end of the locking bar (3) has a mating part with a width of W2, where W1 > W2.

4. The tool changing structure of the tool magazine as described in claim 3, characterized in that, The inclined groove is adapted to the shape of the mating part, and the mating part is in point contact or surface contact with the bottom of the groove.

5. The tool changing structure of the tool magazine as described in claim 2, characterized in that, The tool changer structure of the tool magazine also includes a cover plate (5), which is fixed to the tool arm body (1) by screws (6) and seals the pusher (43) in the receiving groove (12). The cover plate (5) has a through hole, and the pressing pin (432) extends out of the tool arm body (1) through the through hole.

6. The tool changing structure of the tool magazine as described in claim 1, characterized in that, The locking lever (3) includes a lever body (31) and a stop block (32) fixed at the beginning of the lever body (31). The first spring (41) and the lever sleeve (42) are arranged in the moving hole (11) and movably sleeved on the lever body (31). When the lever sleeve (42) is arranged in the moving hole (11), the lever sleeve (42) is relatively fixed to the main body of the blade arm (1).

7. The tool changing structure of the tool magazine as described in claim 6, characterized in that, The main body of the cutter arm (1) is provided with a fixed hole (14) communicating with the moving hole (11). The outer wall of the sleeve (42) is provided with a positioning groove (420). The sleeve (42) is fixed relative to the main body of the cutter arm (1) by a second limiting member (7) that passes through the fixed hole (14) and is arranged in the positioning groove (420).

8. The tool changing structure of the tool magazine as described in claim 6, characterized in that, The rod (31) is connected to the first rod (311) and the abutment (32), and the second rod (312) is connected to the first rod (311). The outer diameter of the second rod (312) is smaller than the outer diameter of the first rod (311). The part where the second rod (312) connects with the first rod (311) constitutes a spring abutment. The first spring (41) and the rod sleeve (42) are sleeved on the first rod (311), and the first spring (41) is disposed between the spring abutment and the rod sleeve (42).

9. The tool changing structure of the tool magazine as described in claim 1, characterized in that, The tool changer structure of the tool magazine is also provided with an anti-disengagement component to prevent the locking bar (3) from disengaging from the moving hole (11). The anti-disengagement component includes an anti-disengagement hole (13) opened on the tool arm body (1) and communicating with the moving hole (11), an elongated anti-disengagement groove (3120) opened on the locking bar (3), and a first limiting member (8) passing through the anti-disengagement hole (13). The end of the first limiting member (8) is disposed in the anti-disengagement groove (3120).

10. The tool changing structure of the tool magazine as described in claim 9, characterized in that, When the tool changer structure of the tool magazine is in the locked state, the side of the anti-disengagement groove (3120) near the receiving groove (12) contacts the first limiting member (8). When the tool changer structure of the tool magazine is in the locked state, the side of the anti-disengagement groove (3120) away from the receiving groove (12) contacts the first limiting member (8).

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