CN213645905U

CN213645905U - Three-jaw chuck convenient to install and used for numerical control machine tool

Info

Publication number: CN213645905U
Application number: CN202022222785.0U
Authority: CN
Inventors: 褚幸瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-01
Filing date: 2020-10-01
Publication date: 2021-07-09
Anticipated expiration: 2030-10-01

Abstract

The utility model discloses a digit control machine tool is with three-jaw chuck convenient to installation, including chuck body, locking bolt, locating pin and spacing bolt, the spout has been seted up to chuck body's inboard, the internal connection of spout has the claw seat, the middle part that the deflector one side was kept away from to the claw seat is provided with the arch, one side fixed surface that the deflector was kept away from to the claw seat has the blotter, the locating pin stretches out the one end in spacing hole and has seted up the locating hole, the locating pin is kept away from the inside threaded hole that sets up of locating hole one end. This digit control machine tool is with three-jaw chuck convenient to installation, with the locating pin installation in the spacing hole of chuck body surface to be oval-shaped locating hole and the location butt joint subassembly of the main shaft equipment of digit control machine tool through locating pin one end and connect, thereby appear joint deviation when avoiding the installation of chuck body, rethread fixing bolt runs through chuck body and main shaft assembly and docks fixedly, and then conveniently fixes a position the installation to this three-jaw chuck.

Description

Three-jaw chuck convenient to install and used for numerical control machine tool

Technical Field

The utility model relates to a digit control machine tool subassembly technical field specifically is a digit control machine tool is with three-jaw chuck convenient to installation.

Background

The numerical control machine tool well solves the problem of machining of complex, precise, small-batch and various parts, and is a flexible and high-efficiency automatic machine tool. The three-jaw chuck consists of a chuck body, movable jaws and a jaw driving mechanism. Due to long-time use of the chuck, the inner sides of the clamping jaws are easy to wear, often in a horn shape, poor in centering and capable of influencing clamping and machining precision of workpieces. The current three-jaw chuck still has the easy scheduling problem that squints of installation when the installation is used, for this reason, we hope to improve the installation effectiveness of three-jaw chuck for digit control machine tool through the innovation of three-jaw chuck for digit control machine tool, change after the movable jack catch wearing and tearing of being convenient for, improve the availability factor, make it exert the biggest value, along with the development of science and technology, the digit control machine tool has had the development of very big degree with the three-jaw chuck of being convenient for install, its development has brought very big facility when milling machine tool to mechanical workpiece for people, its kind and quantity are also increasing day by day.

Although the types and the number of the three-jaw chucks convenient to install for the numerical control machine tool on the current market are very many, the three-jaw chucks convenient to install for the numerical control machine tool have the following defects: the installation of three-jaw chuck for digit control machine tool is comparatively troublesome, skids easily when the cylindrical work piece of three-jaw chuck centre gripping for the digit control machine tool and inconvenient equipment change after the movable jack catch subassembly wearing and tearing of three-jaw chuck for the digit control machine tool. Therefore, the three-jaw chuck which is convenient to mount and used for the existing numerical control machine tool needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a digit control machine tool is with three-jaw chuck convenient to installation to solve the installation of the digit control machine tool three-jaw chuck for the present market that above-mentioned background art provided comparatively troublesome, skid easily during the cylindrical work piece of digit control machine tool three-jaw chuck centre gripping and the inconvenient problem of assembling the change after the movable jaw subassembly wearing and tearing of digit control machine tool three-jaw chuck.

In order to achieve the above object, the utility model provides a following technical scheme: a three-jaw chuck convenient to mount for a numerical control machine tool comprises a chuck body, a locking bolt, a positioning pin and a limiting bolt, wherein a sliding groove is formed in the inner side of the chuck body, and a jaw seat is connected inside the sliding groove;

a guide plate is arranged on one side of the claw seat, a protrusion is arranged in the middle of one side of the claw seat far away from the guide plate, a buffer pad is fixed on the surface of one side of the claw seat far away from the guide plate, a movable clamping jaw is arranged on one side of the buffer pad far away from the claw seat, a butt joint groove is formed in the middle of one side of the movable clamping jaw close to the protrusion, the movable clamping jaw is connected with the buffer pad through a mounting groove, anti-skidding teeth are arranged on the surface of one side of the movable clamping jaw far away from the chuck body, and a groove;

the locking bolt penetrates through the movable clamping jaw to be fixed with the jaw seat, a bevel gear inserting pipe is arranged inside the circumferential surface of the chuck body, a limiting hole is formed in one side, away from the sliding groove, of the chuck body, the positioning pin is arranged inside the limiting hole, the positioning hole is formed in one end, extending out of the limiting hole, of the positioning pin, a threaded hole is formed in the inner portion, away from one end of the positioning hole, of the positioning pin, the limiting bolt penetrates through the chuck body to be in butt joint with the threaded hole, and the inner side of the chuck body is.

Preferably, the cross-sectional dimension of the protrusion is matched with that of the butt joint groove, and the protrusion is in clamping connection with the movable clamping jaw through the butt joint groove.

Preferably, the cross-sectional shape of mounting groove is "U" style of calligraphy, and is interference fit between mounting groove and the cushion.

Preferably, the anti-skidding teeth are distributed in parallel at equal intervals on one sides of the claw seat and the movable claw, and the grooves in the middle of the anti-skidding teeth are of a V-shaped structure.

Preferably, the axis of the positioning hole and the axis of the positioning pin are overlapped, and the positioning hole is in an elliptical structure.

Preferably, the limiting bolt and the positioning pin are vertically distributed, the diameter of the limiting bolt is matched with that of the threaded hole, and the limiting bolt forms a threaded structure through the threaded hole and the positioning pin.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the numerical control machine tool is provided with the three-jaw chuck convenient to install, the positioning pin is installed in the limiting hole on the surface of the chuck body and is connected with the positioning butt joint assembly of the main shaft equipment of the numerical control machine tool through the positioning hole with one end of the positioning pin being oval, so that connection deviation is avoided when the chuck body is installed, and the fixing bolt penetrates through the chuck body and the main shaft assembly to be in butt joint and fixed, so that the three-jaw chuck is convenient to install in a positioning mode;

(2) according to the three-jaw chuck convenient to mount for the numerical control machine tool, the cylindrical workpiece is stably contacted through the anti-skidding teeth at equal intervals on the jaw seat and one side of the movable jaw, the movable jaw distributed at an included angle of 120 degrees is enabled to be V-shaped through the groove formed in the middle of the anti-skidding teeth, and the clamping groove of the concave-convex structure is formed through the V-shaped groove, so that slipping deflection when the workpiece is clamped is effectively avoided;

(3) this digit control machine tool is with three-jaw chuck convenient to installation, the butt joint is stabilized through the mounting groove of "U" style of calligraphy and the blotter of jaw seat one side with the activity jack catch of brand-new or repairing completion, simultaneously, advances line location joint with the protruding of jaw seat middle part and the butt joint groove of activity jack catch one side, later, screws up the locking bolt and will move about and lock fixedly between jack catch and the jaw seat to the convenient movable jack catch subassembly to three-jaw chuck assembles the change.

Drawings

Fig. 1 is a schematic structural view of a three-jaw chuck for a numerical control machine tool, which is convenient to install;

FIG. 2 is a schematic view of the rear view structure of the three-jaw chuck for the numerical control machine tool, which is convenient for installation;

FIG. 3 is a schematic diagram of a right-view structure of a three-jaw chuck for a numerically-controlled machine tool, which is convenient to install;

fig. 4 is a schematic view of the right-view structure of the movable clamping jaw of the three-jaw chuck for the numerical control machine tool, which is convenient to install;

fig. 5 is a schematic view of a part a of the enlarged structure of the three-jaw chuck for the numerical control machine tool, which is convenient to install, in fig. 1;

fig. 6 is the utility model discloses digit control machine tool is with three-jaw chuck of being convenient for installation in fig. 3 local enlarged structure schematic diagram of B department.

In the figure: 1. a chuck body; 2. a chute; 3. a claw seat; 4. a guide plate; 5. a protrusion; 6. a cushion pad; 7. a movable jaw; 8. a butt joint groove; 9. mounting grooves; 10. anti-slip teeth; 11. a groove; 12. locking the bolt; 13. a bevel gear insertion pipe; 14. a limiting hole; 15. positioning pins; 16. positioning holes; 17. a threaded hole; 18. a limit bolt; 19. and (5) fixing the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a three-jaw chuck convenient to mount for a numerical control machine tool comprises a chuck body 1, a sliding groove 2, a jaw seat 3, a guide plate 4, a protrusion 5, a cushion pad 6, a movable jaw 7, a butt joint groove 8, a mounting groove 9, an anti-skidding tooth 10, a groove 11, a locking bolt 12, a bevel gear insertion pipe 13, a limiting hole 14, a positioning pin 15, a positioning hole 16, a threaded hole 17, a limiting bolt 18 and a fixing bolt 19, wherein the sliding groove 2 is formed in the inner side of the chuck body 1, and the jaw seat 3 is connected with the inner side of the sliding groove 2;

the guide plate 4 is arranged on one side of the claw seat 3, the bulge 5 is arranged in the middle of one side of the claw seat 3 far away from the guide plate 4, the cross section size of the bulge 5 is matched with that of the butt joint groove 8, the bulge 5 is connected with the movable jaw 7 in a clamping manner through the butt joint groove 8, so that the claw seat 3 can be connected with the movable jaw 7 in a positioning manner, a locking bolt 12 can conveniently penetrate through and be fixed to cause hole position deviation, a cushion pad 6 is fixed on the surface of one side of the claw seat 3 far away from the guide plate 4, the movable jaw 7 is arranged on one side of the cushion pad 6 far away from the claw seat 3, the butt joint groove 8 is arranged in the middle of one side of the movable jaw 7 close to the bulge 5, the movable jaw 7 is connected with the cushion pad 6 through a mounting groove 9, the cross section of the mounting groove 9 is U-shaped, the movable clamping jaw 7 can be stably assembled with the buffer pad 6 through the mounting groove 9 to prevent connection deviation, the surface of one side, away from the chuck body 1, of the movable clamping jaw 7 is provided with anti-slip teeth 10, the anti-slip teeth 10 are distributed in parallel at equal intervals on one sides of the jaw seat 3 and the movable clamping jaw 7, a groove 11 in the middle of each anti-slip tooth 10 is of a V-shaped structure, the anti-slip teeth 10 can enable the movable clamping jaw 7 to form a clamping groove of a concave-convex structure on the inner side of the chuck body 1 through the groove 11, so that slipping is avoided when a cylindrical workpiece is clamped, and the groove 11 is formed in the middle of each anti-slip tooth 10;

the locking bolt 12 penetrates through the movable clamping jaw 7 to be fixed with the jaw seat 3, a bevel gear insertion tube 13 is arranged inside the circumferential surface of the chuck body 1, a limiting hole 14 is formed in one side, away from the sliding groove 2, of the chuck body 1, the positioning pin 15 is arranged inside the limiting hole 14, a positioning hole 16 is formed in one end, extending out of the limiting hole 14, of the positioning pin 15, the axial lead of the positioning hole 16 and the axial lead of the positioning pin 15 are overlapped, the positioning hole 16 is in an oval structure, so that the positioning pin 15 can drive the chuck body 1 to be in positioning butt joint with a spindle assembly of a numerical control machine tool to prevent installation deviation, a threaded hole 17 is formed in the inside, away from one end of the positioning pin 16, of the positioning pin 15, a threaded hole 17 is formed in the limiting bolt 18, the limiting bolt 18 and the positioning pin 15 are in butt joint with the threaded hole 17, and the limit bolt 18 forms a thread structure through the threaded hole 17 and the positioning pin 15, so that the positioning pin 15 can be positioned, assembled and fixed in the chuck body 1, and the fixing bolt 19 is connected to the inner side of the chuck body 1 in a penetrating manner.

The working principle is as follows: when the three-jaw chuck convenient to mount for the numerical control machine tool is used, firstly, the positioning pin 15 penetrates through the limiting hole 14 on the surface of the chuck body 1 and the limiting bolt 18 penetrates through the side surface of the chuck body 1 to be connected into the threaded hole 17, so that the positioning pin 15 is assembled and fixed in the chuck body 1, and one end of the positioning pin 15 is connected with the positioning butt-joint component of the main shaft equipment of the numerical control machine tool through the oval positioning hole 16, so that the connection deviation is avoided when the chuck body 1 is mounted, and then the fixing bolt 19 penetrates through the chuck body 1 and the main shaft component to be butt-jointed and fixed, so that the three-jaw chuck can be mounted in a positioning way, the claw seat 3 on one side of the guide plate 4 can be driven to move along the fluted disc in the three-jaw chuck by rotating the bevel gear insertion pipe 13, so that the claw seat 3 and one side of the movable claw 7 are in stable, because the groove 11 arranged in the middle of the anti-skid tooth 10 is V-shaped, the movable clamping jaw 7 distributed at an included angle of 120 degrees is formed into a clamping groove with a concave-convex structure through the V-shaped groove 11, so that when a workpiece with a cylindrical structure is clamped and fixed, the clamping and the slipping deflection can be avoided, when the movable clamping jaw 7 is seriously worn and needs to be assembled and replaced, the movable clamping jaw 7 is separated from one side of the jaw seat 3 by unscrewing the locking bolt 12, the brand-new or repaired movable clamping jaw 7 is stably butted with the cushion pad 6 on one side of the jaw seat 3 through the U-shaped mounting groove 9, meanwhile, the bulge 5 in the middle of the jaw seat 3 is positioned and clamped with the butting groove 8 on one side of the movable clamping jaw 7, and then the locking bolt 12 is screwed to lock and fix the movable clamping jaw 7 and the jaw seat 3, thereby completing the assembly or replacement of the movable clamping jaw 7, those not described in detail in this specification are within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a digit control machine tool is with three-jaw chuck convenient to installation, includes chuck body (1), locking bolt (12), locating pin (15) and spacing bolt (18), its characterized in that: a sliding groove (2) is formed in the inner side of the chuck body (1), and a claw seat (3) is connected to the inside of the sliding groove (2);

a guide plate (4) is arranged on one side of the claw seat (3), a protrusion (5) is arranged in the middle of one side, away from the guide plate (4), of the claw seat (3), a cushion pad (6) is fixed on the surface of one side, away from the guide plate (4), of the claw seat (3), a movable clamping jaw (7) is arranged on one side, away from the claw seat (3), of the cushion pad (6), a butt joint groove (8) is formed in the middle of one side, close to the protrusion (5), of the movable clamping jaw (7), the movable clamping jaw (7) is connected with the cushion pad (6) through a mounting groove (9), an anti-skidding tooth (10) is arranged on the surface, away from the chuck body (1), of the movable clamping jaw (7), and a groove (11) is formed in;

locking bolt (12) run through movable jack catch (7) and fix with claw seat (3), the inside on chuck body (1) circumference surface is provided with bevel gear intubate (13), slide groove (2) was kept away from in chuck body (1) one side seted up spacing hole (14), locating pin (15) set up the inside in spacing hole (14), locating pin (15) stretch out the one end in spacing hole (14) and seted up locating hole (16), locating pin (15) keep away from the inside of locating hole (16) one end and seted up threaded hole (17), spacing bolt (18) run through chuck body (1) and dock with threaded hole (17), the inboard through connection of chuck body (1) has fixing bolt (19).

2. The three-jaw chuck for numerical control machine tool easy to install according to claim 1, characterized in that: the cross-sectional dimension of the protrusion (5) is matched with that of the butt joint groove (8), and the protrusion (5) is connected with the movable clamping jaw (7) in a clamping manner through the butt joint groove (8).

3. The three-jaw chuck for numerical control machine tool easy to install according to claim 1, characterized in that: the cross-sectional shape of mounting groove (9) is "U" style of calligraphy, and is interference fit between mounting groove (9) and cushion (6).

4. The three-jaw chuck for numerical control machine tool easy to install according to claim 1, characterized in that: the anti-skidding teeth (10) are distributed in parallel at equal intervals on one sides of the claw seat (3) and the movable claw (7), and the middle grooves (11) of the anti-skidding teeth (10) are of V-shaped structures.

5. The three-jaw chuck for numerical control machine tool easy to install according to claim 1, characterized in that: the axis of the positioning hole (16) and the axis of the positioning pin (15) are superposed, and the positioning hole (16) is in an oval structure.

6. The three-jaw chuck for numerical control machine tool easy to install according to claim 1, characterized in that: the limiting bolts (18) and the positioning pins (15) are vertically distributed, the diameters of the limiting bolts (18) are matched with those of the threaded holes (17), and the limiting bolts (18) form a threaded structure through the threaded holes (17) and the positioning pins (15).