CN110977567A

CN110977567A - Tool changing device for machining center

Info

Publication number: CN110977567A
Application number: CN201911141167.9A
Authority: CN
Inventors: 丁仕贤
Original assignee: Jiangsu Haoxiong Intelligent Equipment Co ltd
Current assignee: Jiangsu Haoxiong Intelligent Equipment Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-04-10

Abstract

The invention discloses a tool changing device for a machining center, which comprises a stepping motor, a cutter disc support, clamping pins and a rotary disc, wherein the clamping pins are uniformly and symmetrically arranged on the surface of the rotary disc at intervals; according to the invention, the buffer positioning assembly is arranged, so that the protection effect of the cutter is improved, the deviation in replacement is prevented, the manpower and material resources are saved, the cutter changing efficiency is improved, the production cost is reduced, the application range is improved, the cutter changing adjusting time is saved, the service life of the cutter is prolonged, the cutter damage probability is reduced, the secondary pollution is prevented, and the working environment is improved.

Description

Tool changing device for machining center

Technical Field

The invention belongs to the technical field of machining centers, and particularly relates to a tool changing device for a machining center.

Background

After the workpiece is clamped once in the machining center, the digital control system can control the machine tool to automatically select and replace the cutter according to different procedures, automatically change the rotating speed of a main shaft of the machine tool, the feeding amount, the motion track of the cutter relative to the workpiece and other auxiliary functions, and sequentially complete the machining of multiple procedures on multiple surfaces of the workpiece. And has various tool changing or selecting functions, thereby greatly improving the production efficiency.

But current toolchanger for machining center does not set up buffering locating component when using, leads to the unable accurate cutter push rod that corresponds of carousel surperficial cutter to change, influences tool changing efficiency, increases the tool changing cost, extravagant manpower and materials resource, does not set up heat dissipation dust removal subassembly at the in-process of tool changing, leads to a large amount of dusts of tool surface adhesion, influences normal use, reduces work efficiency, influences the life of cutter.

Disclosure of Invention

To solve the problems set forth in the background art described above. The invention provides a tool changing device for a machining center, which has the characteristics of tool buffering, heat dissipation and dust removal.

In order to achieve the purpose, the invention provides the following technical scheme: a tool changing device for a machining center comprises a stepping motor, a cutter disc support, clamping pins and a rotary disc, wherein the clamping pins are symmetrically arranged on the surface of the rotary disc at uniform intervals, the cutter disc support is arranged on one side of the rotary disc, the stepping motor is connected to one side of the cutter disc support, a buffering and positioning assembly is connected to the bottom end of the cutter disc support, a replacing frame is arranged at the bottom end of the buffering and positioning assembly, mounting legs are symmetrically arranged at the bottom end of the replacing frame, a cutter push rod is arranged in the middle of the replacing frame, and a heat dissipation and dust removal assembly is arranged on one side of the cutter push;

the buffer positioning assembly comprises a fixed bearing, a screw rod, a servo motor, a limiting clamp, a buffer block, a buffer spring and a limiting rod, wherein the bottom end of the fixed bearing is connected with the screw rod, the bottom end of the screw rod is connected with the servo motor, the surface of the screw rod is provided with the limiting rod, the buffer spring is arranged inside the limiting rod, one side of the buffer spring is connected with the buffer block, and the bottom end of the limiting rod is connected with the limiting clamp;

the heat dissipation and dust removal assembly comprises a dust collection cavity, an ash baffle, a rotating sheet, an air suction pump, an air outlet and an air suction fan, wherein the air suction fan is arranged on one side inside the dust collection cavity, the ash baffle is symmetrically arranged at the bottom end of the air suction fan, the rotating sheet is arranged on one side of the ash baffle, the air outlet is formed in one side of the dust collection cavity, and the air suction pump is connected to one side of the air outlet.

Preferably, the inside of clamp pin is provided with spacing spring, and one side symmetric connection of spacing spring has the hinge bar, and the top of hinge bar is provided with the cutter.

Preferably, one side of the stepping motor is connected with a bevel gear, and the bottom end of the rotary table is connected with a driven gear corresponding to the bevel gear in a meshing manner.

Preferably, one side of the cutter push rod is symmetrically provided with mounting frames, and the mounting frames are connected to the surface of the replacing frame through fixing bolts.

Preferably, the limiting clamp is connected to the surface of the limiting rod through a hinge, a torsion spring is arranged inside the limiting clamp, and one side of the torsion spring is connected with a damping block.

Preferably, the inside of the limiting rod is provided with a sliding groove corresponding to the buffer spring, the surface of the buffer spring is provided with a fastening bolt, and the surface of the buffer block is provided with an anti-skid pad.

Preferably, one side of the rotating piece is provided with a rotating shaft, and the rotating shaft is arranged on the surface of the inner wall of the dust collection cavity through a movable bolt.

Preferably, the air pump is connected with the air outlet through an air guide pipe, and the bottom end of the air guide pipe is provided with a storage rack on the top surface of the replacement rack.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the cutter replacing device, the buffering positioning assembly is arranged, the servo motor drives the screw rod to rotate, so that the limiting rod moves to buffer and position the clamping pin on the surface of the rotary table, the protection effect of the cutter is improved, the replacement deviation is prevented, the manpower and material resources are saved, the cutter replacing efficiency is improved, the production cost is reduced, the working effect is guaranteed, the application range is improved, and the cutter replacing adjusting time is saved.

2. According to the invention, the heat-dissipation dust-removal component is arranged, air is extracted by the air extracting pump and sprayed out from the air outlet to cool and clean the surface of the cutter, and the dust is extracted into the dust-collection cavity by the air extracting fan, so that the service life of the cutter is prolonged, the cutter damage probability is reduced, secondary pollution is prevented, and the working environment is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a buffer positioning assembly according to the present invention;

fig. 3 is a schematic structural diagram of the heat dissipation and dust removal assembly of the present invention.

In the figure: 1. a stepping motor; 2. a cutter head bracket; 3. a buffer positioning component; 31. fixing the bearing; 32. a screw rod; 33. a servo motor; 34. a limiting clamp; 35. a buffer block; 36. a buffer spring; 37. a limiting rod; 4. mounting legs; 5. a heat dissipation and dust removal assembly; 51. a dust collection chamber; 52. a dust blocking plate; 53. a rotating sheet; 54. an air pump; 55. an air outlet; 56. an exhaust fan; 6. a cutter push rod; 7. replacing the rack; 8. a clamping pin; 9. a turntable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a tool changing device for a machining center comprises a stepping motor 1, a cutter disc support 2, clamping pins 8 and a rotary disc 9, wherein the clamping pins 8 are symmetrically arranged on the surface of the rotary disc 9 at uniform intervals, in order to ensure the clamping effect, a limiting spring is arranged inside the clamping pins 8, one side of the limiting spring is symmetrically connected with a hinge rod, a cutter is arranged at the top end of the hinge rod, the cutter disc support 2 is arranged on one side of the rotary disc 9, in order to enable the rotary disc 9 to freely rotate, a conical gear is connected to one side of the stepping motor 1, the bottom end of the rotary disc 9 is connected with a driven gear corresponding to the meshing of the conical gear, the stepping motor 1 is connected to one side of the cutter disc support 2, a buffer positioning assembly 3 is connected to the bottom end of the cutter disc support 2, a replacing frame 7 is arranged at the bottom end of the buffer positioning, in order to ensure that the cutter push rod 6 is firmly fixed, mounting frames are symmetrically arranged on one side of the cutter push rod 6, the mounting frames are connected to the surface of the replacing frame 7 through fixing bolts, and a heat dissipation and dust removal assembly 5 is arranged on one side of the cutter push rod 6;

the buffering positioning component 3 comprises a fixed bearing 31, a screw rod 32, a servo motor 33, a limit clamp 34, a buffer block 35, a buffer spring 36 and a limit rod 37, wherein, the bottom end of the fixed bearing 31 is connected with a screw rod 32, the bottom end of the screw rod 32 is connected with a servo motor 33, the surface of the screw rod 32 is provided with a limit rod 37, a buffer spring 36 is arranged inside the limit rod 37, one side of the buffer spring 36 is connected with a buffer block 35, in order to adjust the position of the buffer spring 36, a sliding groove is arranged in the limiting rod 37 corresponding to the buffer spring 36, a fastening bolt is arranged on the surface of the buffer spring 36, an anti-skid pad is arranged on the surface of the buffer block 35, a limiting clamp 34 is connected with the bottom end of the limiting rod 37, in order to improve the limiting effect, the limiting clamp 34 is connected to the surface of the limiting rod 37 through a hinge, a torsion spring is arranged inside the limiting clamp 34, and one side of the torsion spring is connected with a damping block;

the heat dissipation and dust removal assembly 5 comprises a dust collection cavity 51, an ash baffle 52, a rotating sheet 53, an air pump 54, an air outlet 55 and an air pump 56, wherein the air pump 56 is arranged on one side of the inside of the dust collection cavity 51, the ash baffle 52 is symmetrically arranged at the bottom end of the air pump 56, the rotating sheet 53 is arranged on one side of the ash baffle 52, in order to ensure that the rotating sheet 53 is convenient to rotate, a rotating shaft is arranged on one side of the rotating sheet 53, the rotating shaft is installed on the inner wall surface of the dust collection cavity 51 through a movable bolt, the air outlet 55 is arranged on one side of the dust collection cavity 51, the air pump 54 is connected with one side of the air outlet 55, in order to improve the accuracy of the air outlet 55, the air pump 54 is connected with the air outlet 55.

The air pump 54 of the present invention is a known technology which is already disclosed and widely used in daily life, and the working principle is as follows: the vacuum or negative pressure can be continuously formed at the inlet; forming micro positive pressure at the exhaust nozzle; the working medium is mainly a gas instrument, and the model of the working medium is CQB-739.

The extraction fan 56 of the present invention is a known technology which is already disclosed and widely used in daily life, and the working principle thereof is as follows: the device for generating the air flow is driven by electricity, a fan arranged in the device is electrified and then rotated into natural wind to achieve the effect of air draft, and the type of the device is AIGO-12.

The working principle and the using process of the invention are as follows: firstly, the whole of the invention is fixed, the stepping motor 1 is started to drive the bevel gear to rotate after ensuring no shaking, the bevel gear rotates to drive the driven gear which is meshed with the bevel gear to rotate, the driven gear rotates to drive the turntable 9 to rotate, when a cutter in the clamping pin 8 needs to be replaced, the servo motor 33 is started to drive the screw rod 32 to rotate, the screw rod 32 rotates to drive the limiting rod 37 to move, the limiting rod 37 moves to drive the buffer block 35 and the limiting clamp 34 to move, after the buffer block 35 abuts against the outer wall of the clamping pin 8 and compresses the buffer spring 36 after the buffer block moves to a proper position, the limiting clamp 34 limits the clamping pin 8 in the buffering process of the clamping pin 8, the clamping pin 8 is blocked to stop rotating the turntable 9, the clamping pin 8 is aligned to the cutter push rod 6 under the action of the movement of the limiting rod 37, then the cutter push rod 6 is started and the clamping pin 8 is opened to, in the replacement process, the air suction pump 54 and the air suction fan 56 are turned on, the air suction pump 54 is started to spray air along the air outlet 55 to cool and remove dust of the cutter, dust on the surface of the cutter enters the dust collection cavity 51 under the action of the air suction fan 56, the air suction fan 56 sucks the air to drive the rotating sheet 53 to rotate, and the rotating sheet 53 rotates to convey the dust in the dust collection cavity 51 to the bottom end of the dust collection cavity, so that secondary pollution caused by re-lifting is prevented.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tool changing device for machining center, includes step motor (1), blade disc support (2), presss from both sides tight round pin (8) and carousel (9), its characterized in that: clamping pins (8) are symmetrically arranged on the surface of the rotary table (9) at uniform intervals, a cutter disc support (2) is arranged on one side of the rotary table (9), a stepping motor (1) is connected to one side of the cutter disc support (2), a buffering and positioning assembly (3) is connected to the bottom end of the cutter disc support (2), a replacing frame (7) is arranged at the bottom end of the buffering and positioning assembly (3), mounting legs (4) are symmetrically arranged at the bottom end of the replacing frame (7), a cutter push rod (6) is arranged in the middle of the replacing frame (7), and a heat-dissipation and dust-removal assembly (5) is arranged on one side of the cutter push rod (6);

the buffer positioning assembly (3) comprises a fixed bearing (31), a screw rod (32), a servo motor (33), a limiting clamp (34), a buffer block (35), a buffer spring (36) and a limiting rod (37), wherein the bottom end of the fixed bearing (31) is connected with the screw rod (32), the bottom end of the screw rod (32) is connected with the servo motor (33), the surface of the screw rod (32) is provided with the limiting rod (37), the buffer spring (36) is arranged inside the limiting rod (37), one side of the buffer spring (36) is connected with the buffer block (35), and the bottom end of the limiting rod (37) is connected with the limiting clamp (34);

the heat dissipation and dust removal assembly (5) comprises a dust collection cavity (51), an ash blocking plate (52), a rotating sheet (53), an air suction pump (54), an air outlet (55) and an air suction fan (56), wherein the air suction fan (56) is arranged on one side of the interior of the dust collection cavity (51), the ash blocking plate (52) is symmetrically arranged at the bottom end of the air suction fan (56), the rotating sheet (53) is arranged on one side of the ash blocking plate (52), the air outlet (55) is arranged on one side of the dust collection cavity (51), and the air suction pump (54) is connected to one side of the air outlet (55).

2. The tool changer for machining centers as set forth in claim 1, wherein: the inside of clamp pin (8) is provided with spacing spring, and one side symmetric connection of spacing spring has the hinge bar, and the top of hinge bar is provided with the cutter.

3. The tool changer for machining centers as set forth in claim 1, wherein: one side of the stepping motor (1) is connected with a bevel gear, and the bottom end of the turntable (9) is connected with a driven gear corresponding to the bevel gear in a meshing manner.

4. The tool changer for machining centers as set forth in claim 1, wherein: and one side of the cutter push rod (6) is symmetrically provided with mounting frames, and the mounting frames are connected to the surface of the replacing frame (7) through fixing bolts.

5. The tool changer for machining centers as set forth in claim 1, wherein: spacing clamp (34) pass through hinged joint on the surface of gag lever post (37), the inside of spacing clamp (34) is provided with the torsional spring, and one side of torsional spring is connected with the snubber block.

6. The tool changer for machining centers as set forth in claim 1, wherein: the inside of gag lever post (37) corresponds buffer spring (36) and is provided with the spout, buffer spring (36)'s surface is provided with fastening bolt, the surface of buffer block (35) is provided with the slipmat.

7. The tool changer for machining centers as set forth in claim 1, wherein: one side of the rotating sheet (53) is provided with a rotating shaft, and the rotating shaft is arranged on the inner wall surface of the dust collection cavity (51) through a movable bolt.

8. The tool changer for machining centers as set forth in claim 1, wherein: the air pump (54) is connected with the air outlet (55) through an air duct, and the bottom end of the air duct is provided with a storage rack on the top surface of the replacement rack (7).