CN-121973002-A - Knife sleeve falling-off preventing structure of knife magazine

Abstract

The invention discloses a knife sleeve falling-off prevention structure of a knife magazine, which comprises a mounting frame, a diameter-changing cam and a reciprocating rotating mechanism, wherein levers are respectively and rotatably arranged on two opposite sides of the mounting frame, clamping jaws for clamping the knife sleeve are arranged at one ends of the levers, the diameter-changing cam is rotatably arranged at one end of the levers far away from the clamping jaws through the reciprocating rotating mechanism, one end of the levers far away from the clamping jaws can be attached to the outer edge of the diameter-changing cam to move, a fixing frame and a rolling curtain are fixedly arranged below the mounting frame, the rolling curtain is horizontally and retractably arranged on the fixing frame through a coil spring, a first connecting rod and a second connecting rod are coaxially arranged at the lower end of the diameter-changing cam, hinge holes are symmetrically formed in two opposite sides of the shaft support respectively, the two opposite ends of the fixing frame are respectively and rotatably provided with the first connecting rods, one end of each first connecting rod can reciprocate along the outer edge of the rolling curtain, one end of each second connecting rod is hinged to the other end of the first connecting rod, and the other end of each second connecting rod is hinged to the other end of the first connecting rod.

Inventors

• YUAN XIANLIANG
• LI SHUANGSHU
• LI JIN
• LIU WEI

Assignees

• 安徽东钜精密机械有限公司

Dates

Publication Date

20260505

Application Date

20260324

Claims (9)

1. 1. The utility model provides a prevent tool magazine's tool magazine and drop structure which characterized in that includes: the tool holder comprises a mounting frame (1), wherein levers (11) are respectively rotatably arranged on two opposite sides of the mounting frame (1), and clamping jaws (12) used for clamping a tool sleeve are arranged at one end of each lever (11); The variable-diameter cam (2) and the reciprocating rotating mechanism (3), the variable-diameter cam (2) is vertically and rotatably arranged at one end, far away from the clamping jaw (12), of the lever (11) through the reciprocating rotating mechanism (3), and one end, far away from the clamping jaw (12), of the lever (11) can be attached to the outer edge of the variable-diameter cam (2) to move; The roller shutter comprises a fixing frame (4) and a roller shutter (41), wherein the fixing frame (4) is fixedly arranged below the mounting frame (1), and the roller shutter (41) is horizontally and retractably arranged on the fixing frame (4) through a coil spring; First connecting rod (5) and second connecting rod (6), reducing cam (2) lower extreme coaxial be provided with axle support (21), axle support (21) opposite both sides symmetry respectively are provided with hinge hole (22), mount (4) opposite both ends rotationally are provided with first connecting rod (5) respectively, and every first connecting rod (5) one end can follow roller shutter (41) outward flange reciprocating motion, second connecting rod (6) one end articulates at first connecting rod (5) other end, and the other end articulates on hinge hole (22).
2. 2. The tool magazine tool sheath falling-off prevention structure according to claim 1, wherein one end of each first connecting rod (5) far away from the shaft support (21) is rotatably provided with a first limit sliding block (51) respectively, and a plurality of first limit sliding rails (42) which are in one-to-one correspondence with each first limit sliding block (51) are arranged at the outer edge of the roller shutter (41) in parallel.
3. 3. The tool magazine tool sheath falling-off prevention structure according to claim 1, wherein a first clamping ball groove is concavely formed in the periphery of the variable-diameter cam (2) along the edge of the variable-diameter cam, and a clamping ball head (13) matched with the first clamping ball groove is respectively arranged at one end, close to the variable-diameter cam (2), of each lever (11).
4. 4. The tool magazine tool set falling-off prevention structure according to claim 1, wherein the reciprocating rotation mechanism (3) comprises a rotation shaft (31) and a reciprocating rotation assembly (32), the rotation shaft (31) is vertically and reciprocally rotatably arranged on the mounting frame (1) through the reciprocating rotation assembly (32), and the reducing cam (2) is coaxially and rotatably arranged on the rotation shaft (31).
5. 5. The tool magazine anti-tool magazine release structure according to claim 4, wherein the reciprocating rotary assembly (32) comprises: The upper end of the rotating shaft (31) is coaxially provided with a first incomplete gear (321); A rotary cover (322) and a first rotary drive motor (323), wherein the rotary cover (322) is rotatably covered above the first incomplete gear (321) through the first rotary drive motor (323); A second incomplete gear (324), wherein the second incomplete gear (324) capable of being meshed with the first incomplete gear (321) is coaxially arranged in the rotary cover (322); an incomplete tooth ring (325) is also coaxially arranged in the rotary cover (322), and the incomplete tooth ring (325) can be meshed with the first incomplete gear (321).
6. 6. The tool magazine of claim 4, wherein a plurality of second limiting sliding blocks (311) are arranged on the periphery of the rotating shaft (31) along the length direction of the rotating shaft, second limiting sliding grooves (26) corresponding to the second limiting sliding blocks (311) one by one are coaxially arranged in the reducing cam (2), a plurality of second spherical clamping grooves (24) matched with the first spherical clamping grooves (23) are arranged on the periphery of the reducing cam (2) in parallel, and a third spherical clamping groove (25) used for communicating the first spherical clamping grooves (23) with the second spherical clamping grooves (24), and a lifting driving mechanism (7) used for driving the reducing cam (2) to lift is further arranged on the mounting frame (1).
7. 7. The tool magazine anti-tool magazine falling structure according to claim 6, wherein the lifting drive mechanism (7) comprises: A rotating frame (71), wherein one end of the rotating frame (71) is rotatably sleeved on the reducing cam (2); The screw rod (73) is vertically and rotatably arranged on one side of the rotating frame (71) through the second rotary driving motor (72), and the rod body of the screw rod is assembled with the other end of the rotating frame (71) in a threaded mode.
8. 8. The tool magazine tool set drop prevention structure according to claim 1, characterized in that the roller blind (41) is in particular a wire roller blind (41).
9. 9. The tool magazine tool sheath falling-off prevention structure according to claim 1, further comprising tension springs (8), wherein opposite ends of the tension springs (8) are respectively sleeved on one side, away from the clamping jaw (12), of each lever (11).

Description

Knife sleeve falling-off preventing structure of knife magazine Technical Field The invention relates to the technical field of tool magazine of numerical control machine tools, in particular to a tool magazine anti-tool sleeve falling structure. Background The tool magazine is a core functional component for realizing automatic processing of the numerical control machine tool, the tool magazine is used as a key unit for bearing tools, and the clamping stability of the tool magazine directly determines the operation safety and the production efficiency of a processing system. In the daily operation of the tool magazine and the replacement operation of the tool magazine, the tool magazine is frequently broken down, so that the tool damage and the collision damage of a machine tool spindle or the tool magazine structure can be caused, the economic losses such as long-time shutdown maintenance and production interruption can be caused, and the personal safety of on-site operators is even threatened. In the operation links of changing the cutter sleeve and butting the cutter sleeve with the mechanical arm, the cutter sleeve is required to be accurately installed on the mechanical arm or other bearing equipment. If assembly errors occur (such as the cutter sleeve is not completely clamped into the mechanical arm clamp and the butting positioning deviation), the cutter sleeve is only in a virtual connection state, and at the moment, when the driving cam unlocks the clamping jaw, the clamping force of the clamping jaw is completely released, and the cutter sleeve loses all support and can directly fall from the cutter magazine to cause serious accidents. Therefore, the invention provides a tool magazine anti-tool sheath falling structure with long service life and active secondary protection, which is a problem to be solved urgently. Disclosure of Invention Aiming at the technical problems, the invention aims to overcome the working links of replacing the cutter sleeve and butting the cutter sleeve with the mechanical arm, and the cutter sleeve is required to be accurately mounted on the mechanical arm or other bearing equipment. If assembly errors occur (such as the cutter sleeve is not completely clamped into the mechanical arm clamp and the butting positioning deviation), the cutter sleeve is only in a virtual connection state, and at the moment, when the driving cam unlocks the clamping jaw, the clamping force of the clamping jaw is completely released, and the cutter sleeve loses all support and can directly fall from the cutter magazine to cause serious accidents. Therefore, the cutter sleeve falling-off preventing structure of the cutter magazine is long in service life and provided with active secondary protection. The invention provides a knife sleeve falling-off prevention structure of a knife magazine, which comprises a mounting frame, a diameter-changing cam, a reciprocating rotating mechanism, a fixing frame and a rolling curtain, wherein levers are respectively and rotatably arranged on two opposite sides of the mounting frame, clamping jaws used for clamping the knife sleeve are arranged at one end of each lever, the diameter-changing cam is vertically and rotatably arranged at one end of each lever far away from the clamping jaw through the reciprocating rotating mechanism, one end of each lever far away from the clamping jaw can be attached to the outer edge of the diameter-changing cam to move, the fixing frame and the rolling curtain are fixedly arranged below the mounting frame, the rolling curtain is horizontally and retractably arranged on the fixing frame through a coil spring, a shaft support is coaxially arranged at the lower end of each diameter-changing cam, hinge holes are respectively and symmetrically arranged at two opposite sides of the shaft support, the opposite ends of each fixing frame are respectively and rotatably provided with a first connecting rod, one end of each first connecting rod can reciprocate along the outer edge of the rolling curtain, one end of each first connecting rod is hinged to the other end of the first connecting rod, and the other end of each first connecting rod is hinged to the hinge hole. Preferably, one end of each first connecting rod, which is far away from the shaft support, is respectively rotatably provided with a first limiting slide block, and a plurality of first limiting slide rails which are in one-to-one correspondence with each first limiting slide block are arranged on the outer edge of the roller shutter in parallel. Preferably, the circumference side of the reducing cam is concavely provided with a first clamping ball groove along the edge of the circumference side of the reducing cam, and one end of each lever, which is close to the reducing cam, is respectively provided with a clamping ball head matched with the first clamping ball groove. Preferably, the reciprocating rotating mechanism comprises a rotating shaft and a reciprocating