CN-121989083-A - Cutter arranging machine of numerical control machine tool with rotatable center frame

CN121989083ACN 121989083 ACN121989083 ACN 121989083ACN-121989083-A

Abstract

The invention discloses a cutter arranging machine of a numerical control machine tool with a rotatable center frame, which relates to the technical field of cutter arranging machines of numerical control machines and comprises a numerical control machine tool body and a first linear slide rail arranged on the numerical control machine tool body, wherein the first linear slide rail is provided with a second linear slide rail through a sliding plate, the second linear slide rail is connected with a center support frame through a lifting base, the top of the center support frame is slidably connected with a plurality of groups of cutters distributed at intervals, an arc-shaped driving plate is arranged between the cutters and the center support frame, the arc-shaped driving plate can control the synchronous unfolding or folding of the plurality of groups of cutters, the rotatable arc-shaped center support frame replaces the traditional linear cutter arranging frame, high-density cutter arrangement is realized in a limited space, a double vibration-resistant system is constructed by matching with a shock absorber, the cutters are automatically moved forward and transversely separated during machining, the space positions of the cutters are more independent and forward, the problem of cutter interference under dense arrangement is solved, and the space utilization rate of the small numerical control machine tool is improved.

Inventors

YI HONGBO
KUANG HAO
LIU YONGKANG
Qin Tanliang
WANG XINGXING
LI YUANWEN

Assignees

山西朝惠半导体有限公司

Dates

Publication Date: 20260508
Application Date: 20260331

Claims (8)

1. The numerical control machine tool cutter arranging machine with the rotatable center frame comprises a numerical control machine tool body (1) and a first linear slide rail (2) arranged on the numerical control machine tool body (1), wherein a second linear slide rail (3) is arranged on the first linear slide rail (2) through a sliding plate, and a center support frame (4) is connected to the second linear slide rail (3) through a lifting base (7), and the numerical control machine tool cutter arranging machine is characterized in that a plurality of groups of cutters (5) distributed at intervals are connected to the top of the center support frame (4) in a sliding mode, an arc-shaped driving plate (6) is arranged between each cutter (5) and the center support frame (4), and the arc-shaped driving plate (6) can control the synchronous unfolding or folding of the plurality of groups of cutters (5); The two sides of the lifting base (7) are fixedly connected with arc-shaped guide rails (8) through two connecting rods (11), and the arc-shaped guide rails (8) can enable the cutter (5) to automatically move forward to pull away the longitudinal distance between the cutter (5) and the non-operation cutter after entering an operation interval.
2. The numerical control machine tool cutter row machine with the rotatable center frame according to claim 1, wherein the center support frame (4) comprises a fixed block (401) connected with the lifting base (7) and a support plate (402) rotationally connected with the fixed block (401), a rotating shaft penetrating through the fixed block (401) is fixedly connected to the bottom of the support plate (402), an output shaft of a driving motor (406) is mounted at one end of the rotating shaft, arc supports (404) are fixedly connected to two sides of the support plate (402) through two shock absorbers (403) respectively, and arc rods (405) are fixedly connected to the inner wall of the arc supports (404).
3. The numerical control machine tool cutter row machine with the rotatable center frame according to claim 2, wherein a plurality of guide grooves (601) are formed in the arc-shaped driving plate (6), the guide grooves (601) are arranged in one-to-one correspondence with the plurality of groups of cutters (5), and the distance between the guide grooves (601) is gradually reduced from the outer side to the inner side.
4. The numerical control machine tool cutter row machine with the rotatable center frame according to claim 1, wherein the cutter (5) comprises a connecting seat (501) which is attached to the upper surface of the arc-shaped driving plate (6) in a sliding mode, an adjusting block (502) is connected inside the connecting seat (501) in a sliding mode, and a cutter bar (503) is connected to an inner cavity of the adjusting block (502) through a bolt.
5. The numerical control machine tool cutter row machine with the rotatable center frame according to claim 3, wherein the inner wall of the guide groove (601) is penetrated with a round shaft lever (602), the lower end of the round shaft lever (602) is in sliding connection with the arc-shaped rod (405), the upper end of the round shaft lever (602) is fixedly connected with the connecting seat (501), two hydraulic rods (9) are mounted at two ends of the arc-shaped support (404) through bolts, and piston rods of the two hydraulic rods (9) are respectively fixedly connected with two ends of the arc-shaped driving plate (6).
6. The numerical control machine tool cutter row machine with the rotatable center frame according to claim 4, wherein the top of the adjusting block (502) is fixedly connected with a hollow sleeve (504) sliding along the arc-shaped guide rail (8), the top of the hollow sleeve (504) is fixedly connected with a conical connecting block (505), and the bottom of the conical connecting block (505) is provided with an opening communicated with the hollow sleeve (504).
7. The numerical control machine tool cutter row machine with the rotatable center frame as set forth in claim 6, wherein a section of wavy curve guide section is arranged in the middle of the arc-shaped guide rail (8), and the hollow sleeve (504) can drive the adjusting block (502) and the cutter bar (503) of the inner cavity of the adjusting block to move forward when sliding to the wavy curve guide section.
8. The numerical control machine tool cutter row machine with the rotatable center frame according to claim 6, wherein an air cylinder (10) is fixedly connected to the middle part of the arc-shaped guide rail (8) corresponding to the wavy curve guide section, a limiting shaft (12) is fixedly connected to a piston rod of the air cylinder (10), and an inserting connection mode is adopted between the limiting shaft (12) and the hollow sleeve (504).

Description

Cutter arranging machine of numerical control machine tool with rotatable center frame Technical Field The invention relates to the technical field of numerical control cutter arranging machines, in particular to a numerical control machine tool cutter arranging machine with a rotatable center frame. Background The numerical control machine tool cutter-arranging machine is a multi-cutter-position automatic cutter-changing device integrated on a numerical control lathe or a turning and milling composite machining center, is mainly used for completing multiple procedures such as turning, drilling, tapping, grooving and the like in one-time clamping, has the advantages of simple and compact structure, high cutter-changing speed, stable machining precision and the like, becomes core equipment for mass production of parts such as shafts, disc sleeves and the like, and is widely applied to industries such as electronic elements, automobile parts, medical appliances and the like; The core structure of the current mainstream numerical control cutter arranging machine comprises a machine tool body, a main shaft system, a linear cutter arranging frame, a numerical control system and an automatic feeding mechanism, wherein the cutter arranging frame is used as a key component for cutter installation and movement, and the machining precision and efficiency are directly determined; However, the traditional linear type tool rest is essentially a cantilever support structure, cutting force directly acts on the end part of the cantilever, bending deformation and low-frequency vibration are easy to cause, under the condition of dense multi-tool arrangement, the vibration can be directly transmitted to a main shaft and a machine tool body along a linear path, the vibration amplitude is difficult to effectively control, and the tool rest of the cantilever structure is easier to generate low-frequency bending vibration; In addition, the traditional linear layout requires that the cutters are linearly arranged along the sliding plate, and a fixed safety gap is reserved between adjacent cutters to avoid machining interference, so that the number of the cutters which can be installed in a limited space is limited, and particularly when the linear cutter arranging device is applied to a small numerical control cutter arranging machine, the limitation of the linear cutter arranging frame is further highlighted because the available space of the device is limited, and a plurality of groups of cutters are needed to be used for machining shaft lever type workpieces. Aiming at the problems, innovative design is urgently needed on the basis of the original numerical control machine tool cutter arranging machine. Disclosure of Invention The technical scheme of the invention aims at solving the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and particularly aims to provide the numerical control machine tool cutter arranging machine with the rotatable center frame, so as to solve the problems that the prior art provides a traditional linear type cutter frame with poor vibration resistance effect, insufficient space utilization and limited number of cutters which can be installed in a limited space. The invention provides a cutter arranging machine of a numerical control machine tool, which is provided with a rotatable center frame, and comprises a numerical control machine tool body and a first linear slide rail arranged on the numerical control machine tool body, wherein the first linear slide rail is provided with a second linear slide rail through a sliding plate, the second linear slide rail is connected with a center support frame through a lifting base, the top of the center support frame is in sliding connection with a plurality of groups of cutters distributed at intervals, an arc-shaped driving plate is arranged between the cutters and the center support frame, and the arc-shaped driving plate can control a plurality of groups of cutters to be unfolded or folded synchronously; The two sides of the lifting base are fixedly connected with arc-shaped guide rails through two connecting rods, and the arc-shaped guide rails can enable the cutter to automatically move forward to pull away the longitudinal distance between the cutter and the non-working cutter after entering the working interval. Preferably, the center support frame includes the fixed block that links up with the lifting base to and the backup pad of being connected with the fixed block rotation, the bottom fixedly connected with of backup pad runs through the pivot of fixed block, and driving motor's output shaft is installed to the one end of pivot, two bumper shock absorber fixedly connected with arc support respectively are passed through to the both sides of backup pad, the inner wall fixedly connected with arc pole of arc support. Preferably, the arc-shaped driving plate is provided with a plu