阅读说明：本技术 一种数控车床弹簧夹头夹紧机构 (Spring chuck clamping mechanism of numerical control lathe ) 是由 贾耀霜 林勇 黄玲 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种数控车床弹簧夹头夹紧机构,包括外环体和设置在外环体内部的安装盘,安装盘通过支杆固定在外环体的内壁,安装盘正面的中心处贯穿开设有安装孔,安装盘的前方设置有主定位机构,安装盘的后方设置有副定位机构,主定位机构包括三个偏心轮,三个偏心轮均通过转轴转动连接在安装盘的正面,本发明涉及卡紧结构技术领域。该数控车床弹簧夹头夹紧机构,通过主定位机构的设置,便于利用气缸加连杆便可实现对弹簧夹头三个方向的同时夹紧,使用成本低,固定步骤简单,且结构新颖,固定效果好,自动化程度高,通过副定位机构的设置,便于对弹簧夹头表面的另一点再次进行夹紧,进一步使得弹簧夹头在夹紧时稳定性。(The invention discloses a spring chuck clamping mechanism of a numerical control lathe, which comprises an outer ring body and an installation disc arranged in the outer ring body, wherein the installation disc is fixed on the inner wall of the outer ring body through a support rod, an installation hole is formed in the center of the front surface of the installation disc in a penetrating mode, a main positioning mechanism is arranged in front of the installation disc, an auxiliary positioning mechanism is arranged behind the installation disc, the main positioning mechanism comprises three eccentric wheels, and the three eccentric wheels are all rotatably connected to the front surface of the installation disc through a rotating shaft. This numerical control lathe collet chuck clamping mechanism, through main positioning mechanism's setting, be convenient for utilize the cylinder to add the connecting rod alright realize pressing from both sides tightly when three orientation of collet chuck, use cost is low, and fixed step is simple, and novel structure, fixed effectual, degree of automation is high, through vice positioning mechanism's setting, is convenient for press from both sides tightly once more to another point on collet chuck surface, further makes collet chuck stability when pressing from both sides tightly.)

1. The utility model provides a numerical control lathe collet chuck clamping mechanism, includes outer ring body (1) and sets up at inside mounting disc (2) of outer ring body (1), the inner wall at outer ring body (1), its characterized in that are fixed in mounting disc (2) through branch (13): a mounting hole (4) penetrates through the center of the front surface of the mounting disc (2), a main positioning mechanism (5) is arranged in front of the mounting disc (2), and an auxiliary positioning mechanism (6) is arranged behind the mounting disc (2);

the main positioning mechanism (5) comprises three eccentric wheels (501), the three eccentric wheels (501) are rotatably connected to the front face of the mounting disc (2) through rotating shafts (502), the three eccentric wheels (501) are equidistantly distributed, the surfaces of the three eccentric wheels (501) are rotatably connected with lantern rings (503), a sliding rail (504) is fixed to the front face of the mounting disc (2), the three sliding rails (504) are equidistantly distributed, the inner walls of the three sliding rails (504) are slidably connected with extrusion blocks (505), connecting rods (506) are fixed to the surfaces of the three lantern rings (503), the adjacent connecting rods (506) are rotatably connected with the surfaces of the extrusion blocks (505), first ferrules (507), second ferrules (508) and third ferrules (509) are sequentially fixed to the surfaces of the three rotating shafts (502), first inclined rods (513) and second connecting rods (514) are fixed to the surfaces of the first ferrules (507), the surface of second lasso (508) is fixed with third down tube (515) and fourth down tube (516), the surface of third lasso (509) is fixed with fifth down tube (517), it is connected with first bull stick (510) to rotate between the surface of second connecting rod (514) and third down tube (515), it is connected with second bull stick (511) to rotate between the surface of fourth down tube (516) and fifth down tube (517), the front of mounting disc (2) rotates and is connected with main location cylinder (512), the surface of main location cylinder (512) rotates with the surface of first down tube (513) and is connected.

2. A numerically controlled lathe collet chuck clamping mechanism according to claim 1, wherein: vice positioning mechanism (6) are including fixing hollow ring (601) at mounting disc (2) back, the inner wall of hollow ring (601) rotates has rotating ring (602), indent (603) have been seted up to the inner wall of rotating ring (602), indent (603) are provided with threely, three indent (603) equidistance distributes.

3. A numerically controlled lathe collet chuck clamping mechanism according to claim 2, wherein: the inner side of the surface of the hollow ring (601) is provided with three pressure rods (604) in a sliding penetrating manner, the three pressure rods (604) are distributed at equal intervals, the surface of each pressure rod (604) is sleeved with a return spring (605), and the pressure rods (604) are matched with the pressure grooves (603) for use.

4. A numerically controlled lathe collet chuck clamping mechanism according to claim 2, wherein: the back of hollow ring (601) is fixed with vice location cylinder (606), the back of swivel becket (602) is fixed with and runs through extension rod (607) of setting on hollow ring (601), the one end of extension rod (607) is fixed with even piece (608), vice location cylinder (606) and link rotate between the surface of piece (608) and be connected, the back of hollow ring (601) runs through the arc that sets up with extension rod (607) looks adaptation and leads to groove (609).

5. A numerically controlled lathe collet chuck clamping mechanism according to claim 1, wherein: three one side that extrusion piece (505) are close to each other all is fixed with first arc splint (7), and is three the inner wall of first arc splint (7) all is fixed with first arc pad (8), the inner wall of first arc pad (8) is fixed with first friction arch (9).

6. A numerically controlled lathe collet chuck clamping mechanism according to claim 3, wherein: three one side that depression bar (604) are close to each other all is fixed with second arc splint (10), and is three the inner wall of second arc splint (10) all is fixed with second arc pad (11), the inner wall of second arc pad (11) is fixed with second friction arch (12).

7. A numerically controlled lathe collet chuck clamping mechanism according to claim 1, wherein: the included angle between the first connecting rod and the second connecting rod (514) is equal to the included angle between the third inclined rod (515) and the fourth inclined rod (516), and the second connecting rod (514) and the third inclined rod (515) are arranged in parallel.

8. A numerically controlled lathe collet chuck clamping mechanism according to claim 1, wherein: the fourth inclined rod (516) and the fifth inclined rod (517) are arranged in parallel, the front face of the outer ring body (1) is fixedly provided with a plurality of mounting rods (3), and the number of the mounting rods (3) is multiple.

Technical Field

The invention relates to the technical field of clamping structures, in particular to a spring chuck clamping mechanism of a numerical control lathe.

Background

The numerical control lathe and the turning center are high-precision and high-efficiency automatic machine tools. The multi-station tool turret or the power tool turret is equipped, so that the machine tool has wide processing technological performance, can process complex workpieces such as linear cylinders, oblique line cylinders, circular arcs and various threads, grooves, worms and the like, has various compensation functions of linear interpolation and circular arc interpolation, and plays a good economic effect in the batch production of complex parts. The milling machine is one of numerically controlled lathes, and the spring chuck is one kind of cylindrical fixture for holding drill bit and milling cutter. The fixing device is used for fixing and reinforcing the part needing to be modified.

The existing clamping mechanism is high in use cost, fixing steps are complicated when the spring chuck is fixed, the structure is not novel, and the fixing effect is general, so that the invention provides a numerical control lathe spring chuck clamping mechanism to solve the problems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a spring chuck clamping mechanism of a numerical control lathe, which solves the problems that the conventional clamping mechanism is high in use cost, complicated in fixing steps, non-novel in structure and general in fixing effect when a spring chuck is fixed.

In order to achieve the purpose, the invention is realized by the following technical scheme: the spring chuck clamping mechanism of the numerical control lathe comprises an outer ring body and a mounting disc arranged inside the outer ring body, wherein the mounting disc is fixed on the inner wall of the outer ring body through a support rod, a mounting hole is formed in the center of the front face of the mounting disc in a penetrating mode, a main positioning mechanism is arranged in front of the mounting disc, and an auxiliary positioning mechanism is arranged behind the mounting disc.

The main positioning mechanism comprises three eccentric wheels, the three eccentric wheels are rotatably connected to the front surface of the mounting disc through rotating shafts and are distributed at equal intervals, the surfaces of the three eccentric wheels are rotatably connected with lantern rings, the front surface of the mounting disc is fixedly provided with slide rails, the slide rails are provided with three slide rails which are distributed at equal intervals, the inner walls of the three slide rails are slidably connected with extrusion blocks, the surfaces of the three lantern rings are fixedly provided with connecting rods, the adjacent connecting rods are rotatably connected with the surfaces of the extrusion blocks, the surfaces of the three rotating shafts are sequentially fixedly provided with a first ferrule, a second ferrule and a third ferrule, the surface of the first ferrule is fixedly provided with a first inclined rod and a second connecting rod, the surface of the second ferrule is fixedly provided with a third inclined rod and a fourth inclined rod, the surface of the third ferrule is fixedly provided with a fifth inclined rod, and the surface of the second connecting rod and the third inclined rod is rotatably connected with a first rotating rod, the surface of fourth down tube and fifth down tube rotates between be connected with the second bull stick, the front of mounting disc rotates and is connected with main location cylinder, the surface of main location cylinder rotates with the surface of first down tube and is connected.

Preferably, vice positioning mechanism is including fixing the hollow ring at the mounting disc back, the inner wall of hollow ring rotates there is the rotating ring, the indent has been seted up to the inner wall of rotating ring, the indent is provided with threely, three the indent equidistance distributes.

Preferably, the inner side of the surface of the hollow ring is penetrated with three pressure rods in a sliding manner, the three pressure rods are distributed at equal intervals, the surface of each pressure rod is sleeved with a return spring, and the pressure rods are matched with the pressure grooves for use.

Preferably, the back of hollow ring is fixed with vice location cylinder, the back of swivel becket is fixed with the extension rod that runs through the setting on hollow ring, the one end of extension rod is fixed with even piece, vice location cylinder rotates between the surface with even piece to be connected, the back of hollow ring runs through the arc that sets up with extension rod looks adaptation and leads to the groove.

Preferably, three one side that the extrusion piece is close to each other all is fixed with first arc splint, and is three the inner wall of first arc splint all is fixed with first arc pad, the inner wall of first arc pad is fixed with first friction arch.

Preferably, three one side that the depression bar is close to each other all is fixed with second arc splint, and is three the inner wall of second arc splint all is fixed with the second arc pad, the inner wall that the second arc padded is fixed with the second friction arch.

Preferably, an included angle between the first connecting rod and the second connecting rod is equal to an included angle between the third diagonal rod and the fourth diagonal rod, and the second connecting rod and the third diagonal rod are arranged in parallel.

Preferably, the fourth diagonal rod and the fifth diagonal rod are arranged in parallel, and a plurality of mounting rods are fixed on the front surface of the outer ring body.

Advantageous effects

The invention provides a spring chuck clamping mechanism of a numerical control lathe. Compared with the prior art, the method has the following beneficial effects:

(1) the spring chuck clamping mechanism of the numerical control lathe comprises three eccentric wheels arranged on a main positioning mechanism, the three eccentric wheels are rotationally connected to the front surface of a mounting disc through rotating shafts and are equidistantly distributed, the surfaces of the three eccentric wheels are rotationally connected with lantern rings, the front surface of the mounting disc is fixedly provided with three slide rails which are equidistantly distributed, the inner walls of the three slide rails are respectively and slidably connected with an extrusion block, the surfaces of the three lantern rings are respectively and fixedly provided with connecting rods, the surfaces of adjacent connecting rods and the extrusion block are rotationally connected, the surfaces of the three rotating shafts are sequentially and fixedly provided with a first ferrule, a second ferrule and a third ferrule, the surface of the first ferrule is fixedly provided with a first inclined rod and a second connecting rod, the surface of the second ferrule is fixedly provided with a third inclined rod and a fourth inclined rod, and the clamping of the spring chuck in three directions can be realized by utilizing an air cylinder and the connecting rods through the arrangement of the main positioning mechanism, the use cost is low, the fixing step is simple, the structure is novel, the fixing effect is good, and the automation degree is high.

(2) This numerical control lathe collet chuck clamping mechanism, through fixing the hollow ring at the mounting disc back at vice positioning mechanism, the inner wall of hollow ring rotates there is the rotating ring, the indent has been seted up to the inner wall of rotating ring, the indent is provided with threely, three indent equidistance distributes, the inboard slip on hollow ring surface runs through there is the depression bar, the depression bar is provided with threely, three depression bar equidistance distributes, the surface cover of depression bar is equipped with reset spring, the depression bar uses with the indent cooperation, the back of hollow ring is fixed with vice location cylinder, the back of rotating ring is fixed with and runs through the extension rod that sets up on hollow ring, the one end of extension rod is fixed with even piece, setting through vice positioning mechanism, be convenient for press from both sides tightly once more to another point on collet chuck surface, further make collet chuck stability when pressing from both sides tightly higher.

(3) This numerical control lathe collet chuck clamping mechanism, one side through being close to each other at three extrusion piece all is fixed with first arc splint, the inner wall of three first arc splint all is fixed with first arc and fills up, the inner wall that first arc filled up is fixed with first friction arch, one side that three depression bar is close to each other all is fixed with second arc splint, the inner wall of three second arc splint all is fixed with the second arc and fills up, the inner wall that the second arc filled up is fixed with second friction arch, fill up through first arc, first friction arch, the second arc fills up, the protruding effective increase of second friction and the friction between the collet chuck, and can protect the collet chuck surface not by the clamp bad.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a rear view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 1;

FIG. 4 is an enlarged view of a portion of the present invention at B of FIG. 1;

FIG. 5 is a rear cross-sectional view of the hollow ring structure of the present invention;

FIG. 6 is a perspective view of the rotating ring structure of the present invention;

fig. 7 is a partial enlarged view of the invention at C in fig. 2.

In the figure: 1-outer ring body, 2-mounting disc, 3-mounting rod, 4-mounting hole, 5-main positioning mechanism, 501-eccentric wheel, 502-rotating shaft, 503-lantern ring, 504-sliding rail, 505-extrusion block, 506-connecting rod, 507-first ferrule, 508-second ferrule, 509-third ferrule, 510-first rotating rod, 511-second rotating rod, 512-main positioning cylinder, 513-first inclined rod, 514-second connecting rod, 515-third inclined rod, 516-fourth inclined rod, 517-fifth inclined rod, 6-auxiliary positioning mechanism, 601-hollow ring, 602-rotating ring, 603-pressing groove, 604-pressing rod, 605-return spring, 606-auxiliary positioning cylinder, 607-extending rod, 608-connecting block, 609-arc through groove, 7-first arc splint, 8-first arc pad, 9-first friction bulge, 10-second arc splint, 11-second arc pad, 12-second friction bulge, and 13-strut.

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. 1-7, the present invention provides a technical solution: the utility model provides a numerical control lathe collet chuck clamping mechanism, includes outer ring body 1 and sets up at the inside mounting disc 2 of outer ring body 1, and mounting disc 2 passes through branch 13 to be fixed at the inner wall of outer ring body 1, and the positive center department of mounting disc 2 runs through and has seted up mounting hole 4, and the place ahead of mounting disc 2 is provided with main positioning mechanism 5, and the rear of mounting disc 2 is provided with vice positioning mechanism 6.

The main positioning mechanism 5 comprises three eccentric wheels 501, the three eccentric wheels 501 are all rotatably connected to the front surface of the mounting disc 2 through a rotating shaft 502, the three eccentric wheels 501 are equidistantly distributed, the surfaces of the three eccentric wheels 501 are all rotatably connected with lantern rings 503, the front surface of the mounting disc 2 is fixedly provided with slide rails 504, the slide rails 504 are provided with three slide rails 504, the three slide rails 504 are equidistantly distributed, the inner walls of the three slide rails 504 are all slidably connected with extrusion blocks 505, the surfaces of the three lantern rings 503 are all fixedly provided with connecting rods 506, the adjacent connecting rods 506 are rotatably connected with the surfaces of the extrusion blocks 505, the surfaces of the three rotating shafts 502 are sequentially fixedly provided with a first lantern ring 507, a second lantern ring 508 and a third lantern ring 509, the surface of the first lantern ring 507 is fixedly provided with a first inclined rod 513 and a second connecting rod 514, the surface of the second lantern ring 508 is fixedly provided with a third inclined rod 515 and a fourth inclined rod 516, the surface of the third lantern ring 509 is fixedly provided with a fifth inclined rod 517, and the surfaces of the second connecting rod 514 and the third inclined rod 515 are rotatably connected with a first rotating rod 510, a second rotating rod 511 is rotatably connected between the surfaces of the fourth inclined rod 516 and the fifth inclined rod 517, a main positioning cylinder 512 is rotatably connected to the front surface of the mounting plate 2, the main positioning cylinder is electrically connected with an external power supply and is controlled by a control switch, and the surface of the main positioning cylinder 512 is rotatably connected with the surface of the first inclined rod 513.

In the embodiment of the invention, the auxiliary positioning mechanism 6 comprises a hollow ring 601 fixed on the back of the mounting disc 2, the inner wall of the hollow ring 601 rotates to form a rotating ring 602, the inner wall of the rotating ring 602 is provided with three pressing grooves 603, and the three pressing grooves 603 are distributed at equal intervals.

In the embodiment of the invention, the inner side of the surface of the hollow ring 601 is provided with three pressure rods 604 in a sliding way, the three pressure rods 604 are distributed at equal intervals, the surface of the pressure rod 604 is sleeved with a return spring 605, so that the pressure rod 604 is convenient to return, and the pressure rod 604 is matched with the pressure groove 603 for use.

In the embodiment of the invention, the back surface of the hollow ring 601 is fixed with the auxiliary positioning cylinder 606, which is electrically connected with an external power supply and controlled by a control switch, the back surface of the rotating ring 602 is fixed with an extending rod 607 penetrating through the hollow ring 601, one end of the extending rod 607 is fixed with a connecting block 608, the auxiliary positioning cylinder 606 is rotatably connected with the surface of the connecting block 608, and the back surface of the hollow ring 601 is penetrated with an arc-shaped through groove 609 matched with the extending rod 607.

In the embodiment of the invention, the first arc-shaped clamping plates 7 are fixed on the sides of the three squeezing blocks 505 close to each other, the first arc-shaped pads 8 are fixed on the inner walls of the three first arc-shaped clamping plates 7, and the first friction bulges 9 are fixed on the inner walls of the first arc-shaped pads 8, so that the friction between the spring chucks and the spring chucks is increased, and the spring chucks can be protected from being damaged by clamping.

In the embodiment of the invention, the second arc-shaped clamping plates 10 are fixed on the sides of the three pressing rods 604 close to each other, the second arc-shaped pads 11 are fixed on the inner walls of the three second arc-shaped clamping plates 10, and the second friction bulges 12 are fixed on the inner walls of the second arc-shaped pads 11, so that the friction between the spring chucks and the spring chucks is increased, and the spring chucks can be protected from being damaged by clamping.

In the embodiment of the present invention, an included angle between the first connecting rod and the second connecting rod 514 is equal to an included angle between the third diagonal rod 515 and the fourth diagonal rod 516, and the second connecting rod 514 and the third diagonal rod 515 are arranged in parallel.

In the embodiment of the present invention, the fourth diagonal rod 516 and the fifth diagonal rod 517 are arranged in parallel, the mounting rod 3 is fixed on the front surface of the outer ring body 1, and a plurality of mounting rods 3 are arranged.

And those not described in detail in this specification are well within the skill of those in the art.

When the device works, a spring chuck penetrates through the mounting hole 4, then the main positioning cylinder 512 is started, the main positioning cylinder 512 extends, the second connecting rod 514 is driven to rotate by the first inclined rod 513, the third inclined rod 515 and the fourth inclined rod 516 are driven to rotate by the cooperation of the second connecting rod 514 and the first rotating rod 510, the fifth inclined rod 517 is driven to rotate by the second rotating rod 511, the three eccentric wheels 501 can rotate simultaneously, the three lantern rings 503 are respectively extruded, the three extrusion blocks 505 can be driven to slide close to each other on the inner walls of the three sliding rails 504 by the cooperation of the three lantern rings 503 and the three connecting rods 506, the three directions of the surface of the spring chuck are simultaneously clamped by the cooperation of the first arc-shaped pad 8 and the first friction bulge 9, for safety, another point on the surface of the spring chuck needs to be clamped, the auxiliary positioning cylinder 606 is started, the auxiliary positioning cylinder 606 shortens, and the rotating ring 602 is driven to rotate by the extending rod 607, so that the three pressure grooves 603 respectively extrude the three pressure rods 604, and then the second arc-shaped pad 11 and the second friction bulge 12 are matched to clamp the other side of the surface of the spring chuck, thereby effectively preventing the spring chuck from falling off and ensuring high use safety.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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.