CN216881773U

CN216881773U - Centering chuck of gantry machining center

Info

Publication number: CN216881773U
Application number: CN202123277158.8U
Authority: CN
Inventors: 姜代亮; 张涛; 薛娇; 相世高
Original assignee: Qingdao Yuefenglai Machinery Co ltd
Current assignee: Qingdao Yuefenglai Machinery Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-07-05
Anticipated expiration: 2031-12-23

Abstract

The utility model relates to the technical field of gantry machining centers, in particular to a centering chuck of a gantry machining center, which comprises a chuck, wherein the inner side of the top surface of the chuck is slidably connected with clamping jaws which are distributed in an annular and equidistant manner, and the centering chuck further comprises: the clamping blocks are symmetrically arranged and slide on the inner sides of the middle parts of the clamping jaws; the pushing screw is spirally arranged on the inner side of the clamping jaw in a penetrating way, and the penetrating direction of the pushing screw is vertical to the clamping block; one end of the propelling screw rod, which is positioned at the inner side of the clamping jaw, penetrates through the clamping blocks; according to the clamping jaw, the symmetrical clamping blocks slide on the inner sides of the clamping jaws, and the pushing screw rods are spirally connected in the vertical direction of the clamping blocks, so that when the clamping jaws are fixed, the two symmetrical clamping blocks can be clamped and connected with the clamping chuck by adopting screw rod pushing.

Description

Centering chuck of gantry machining center

Technical Field

The utility model relates to the technical field of gantry type machining centers, in particular to a centering chuck of a gantry type machining center.

Background

The chuck is a mechanical device used for clamping workpieces on a machine tool, and is a machine tool accessory for clamping and positioning the workpieces by utilizing the radial movement of movable jaws uniformly distributed on a chuck body, the chuck generally consists of the chuck body, the movable jaws and a jaw driving mechanism 3, and the chuck is usually installed on a lathe, a cylindrical grinding machine and an internal grinding machine for use and can also be matched with various indexing devices for use on a milling machine and a drilling machine.

At present, current chuck is tightened up the back with the jack catch and is adopted the bolt to fix the jack catch usually, but current bolt fastening mode, and the top that only adopts the bolt carries out the butt with the chuck and fixes, and this kind of fixed mode can cause not hard up of jack catch when the jack catch receives powerful impact.

Therefore, it is necessary to provide a centering chuck for a gantry machining center to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a centering chuck of a gantry type machining center.

The utility model provides a centering chuck of a gantry type machining center, which comprises:

chuck, the inboard sliding connection of chuck top surface has the jack catch that ring shape equidistance distributes, still includes:

the clamping blocks are symmetrically arranged and slide on the inner sides of the middle parts of the clamping jaws;

the pushing screw is spirally arranged on the inner side of the clamping jaw in a penetrating way, and the penetrating direction of the pushing screw is vertical to the clamping block;

one end of the propelling screw rod, which is positioned at the inner side of the clamping jaw, penetrates through the clamping blocks.

Preferably, the top of one end of the pushing screw connected with the clamping block is fixed with a conical head, and the conical head abuts against the outer surface of the clamping block.

Preferably, a chamfer opening is formed in the position, connected with the conical head, of the fixture block, and the conical head abuts against the center of the chamfer opening.

Preferably, the bottom end of the claw is connected with the chuck in a sliding mode, and a convex sliding block is arranged at the position, connected with the chuck in a sliding mode, of the bottom end of the claw and slides on the inner side of the chuck.

Preferably, the position of the chuck connected with the convex sliding block is provided with a limiting sliding groove, and the convex sliding block slides on the inner side of the limiting sliding groove.

Preferably, the inner side of the limiting sliding groove is provided with a part, which is far away from the limiting sliding groove, of which one end is abutted against the outer surface of the convex sliding block.

Compared with the prior art, the centering chuck of the gantry machining center provided by the utility model has the following beneficial effects:

1. according to the clamping jaw, the symmetrical clamping blocks slide on the inner sides of the clamping jaws, and the pushing screw rods are spirally connected in the vertical direction of the clamping blocks, so that when the clamping jaws are fixed, the two symmetrical clamping blocks can be clamped and connected with the clamping chuck by adopting screw rod pushing.

2. The convex sliding block is additionally arranged at the position where the bottom of the jaw is in sliding connection with the chuck to limit the jaw to slide on the inner side of the chuck, so that the stability of the jaw in the clamping sliding process is improved, and the pressurizing spring is additionally arranged between the convex sliding block and the limiting sliding groove, so that the jaw can always have propelling force, and the firmness of the jaw in fixing a workpiece is improved.

Drawings

Fig. 1 is a schematic structural diagram of a centering chuck of a gantry machining center according to a preferred embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of the middle portion shown in FIG. 1;

FIG. 3 is a schematic view of the structure of the jaw portion shown in FIG. 2;

fig. 4 is an exploded view of the latch and the pawl shown in fig. 3.

Reference numbers in the figures: 1. a chuck; 2. a centering hole; 3. a claw; 4. a clamping block; 5. a screw is advanced; 6. chamfering the corner opening; 7. a conical head; 8. a male slider; 9. a limiting chute; 10. and a pressurizing spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Referring to the drawings, an embodiment of the present invention provides a centering chuck for a gantry machining center, where the centering chuck for the gantry machining center includes:

chuck 1, the inboard sliding connection in 1 top surface of chuck has the jack catch 3 that the ring shape equidistance distributes, still includes:

the clamping blocks 4 are symmetrically arranged and slide on the inner sides of the middle parts of the clamping jaws 3;

the pushing screw rod 5 is spirally arranged on the inner side of the clamping jaw 3 in a penetrating way, and the penetrating direction of the pushing screw rod 5 is vertical to the clamping block 4;

one end of the pushing screw 5, which is positioned at the inner side of the clamping jaw 3, penetrates through the clamping blocks 4.

It should be noted that: the top of the end, connected with the fixture block 4, of the propelling screw 5 is fixed with a conical head 7, the conical head 7 abuts against the outer surface of the fixture block 4, a chamfer opening 6 is formed in the position, connected with the conical head 7, of the fixture block 4, and the conical head 7 abuts against the center of the chamfer opening 6.

In the present embodiment: according to the clamping jaw, the symmetrical clamping blocks 4 slide on the inner sides of the clamping jaws 3, the pushing screw rods 5 are spirally connected in the vertical direction of the clamping blocks 4, so that when the clamping jaws are fixed, the two symmetrical clamping blocks 4 can be clamped and connected with the chuck 1 by adopting screw rod pushing, compared with the existing abutting mode, the structure improves the abutting contact area, changes the transmission mode of the screw rods, and further enables the clamping jaws 3 to be higher in firmness after being fixed.

In the embodiment of the utility model, please refer to the attached drawings, a convex sliding block 8 is arranged at the position where the bottom end of the jaw 3 is slidably connected with the chuck 1, the convex sliding block 8 slides inside the chuck 1, a pressurizing spring 10 is arranged inside the limiting sliding chute 9, and one end of the pressurizing spring 10 far away from the limiting sliding chute 9 abuts against the outer surface of the convex sliding block 8;

it should be noted that: the position of chuck 1 connection convex slider 8 has seted up spacing spout 9, and convex slider 8 slides in spacing spout 9 inboardly.

In the present embodiment: according to the utility model, the convex sliding block 8 is additionally arranged at the position where the bottom of the jaw 3 is in sliding connection with the chuck 1 to limit the sliding of the jaw 3 on the inner side of the chuck 1, so that the stability of the jaw 3 in the clamping sliding process is improved, and the pressurizing spring 10 is additionally arranged between the convex sliding block 8 and the limiting sliding groove 9, so that the jaw 3 can always have propelling force, and the firmness of the jaw 3 in fixing a workpiece is improved.

The use process comprises the following steps: when the clamping fixture is used, a workpiece is arranged on the inner side of the centering hole 2 in a penetrating mode, the clamping jaw 3 is pulled to enable the clamping jaw 3 to move to the outer side of the chuck 1 when the workpiece is arranged in the penetrating mode, after the position of the workpiece is determined, the clamping jaw 3 is loosened, the clamping jaw 3 can slide under the pushing of the pressurizing spring 10 to enable the workpiece to be abutted and fixed, then the pushing screw rod 5 is rotated to enable the conical head 7 at the top of the screw rod to be abutted with the chamfering port 6 in the middle of the clamping block 4, the conical head 7 pushes the clamping block 4 to slide towards two sides to be abutted with the chuck 1, and the clamping jaw 3 is fixed;

it should be noted that: when the jack catch 3 is pulled, the convex sliding block 8 on the inner side of the jack catch 3 pushes the pressurizing spring 10 to contract the pressurizing spring 10, and when the jack catch 3 is released, the jack catch 3 naturally slides towards the inner side of the chuck 1 under the thrust of the spring;

it should be noted that: when jack catch 3 received powerful promotion, at first can conduct the position of fixture block 4 with power, later the fixture block 4 can extrude conical head 7 and screw rod to thrust driving force screw rod can not directly be exerted, consequently can guarantee the butt fastness between fixture block 4 and the chuck 1.

The circuits and controls involved in the present invention are all the prior art, and are not described herein in detail.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a planer-type machining center's centering chuck, includes chuck (1), chuck (1) top surface inboard sliding connection has ring shape equidistance claw (3) that distribute, its characterized in that still includes:

the clamping blocks (4) are symmetrically arranged and slide on the inner side of the middle part of the clamping jaw (3);

the pushing screw (5) is spirally arranged on the inner side of the clamping jaw (3) in a penetrating way, and the penetrating direction of the pushing screw (5) is vertical to the clamping block (4);

one end of the pushing screw rod (5) positioned at the inner side of the clamping jaw (3) penetrates through the clamping blocks (4).

2. The centering chuck of the gantry machining center according to claim 1, wherein a conical head (7) is fixed at the top of one end of the pushing screw (5) connected with the clamping block (4), and the conical head (7) abuts against the outer surface of the clamping block (4).

3. The centering chuck of the gantry machining center according to claim 2, wherein a chamfer opening (6) is formed at a position where the fixture block (4) is connected with the conical head (7), and the conical head (7) abuts against the center of the chamfer opening (6).

4. The centering chuck of a gantry machining center according to claim 1, characterized in that the bottom ends of the jaws (3) are slidably connected to the chuck (1) at positions where the male sliders (8) are provided, and the male sliders (8) are slidably arranged inside the chuck (1).

5. The centering chuck of the gantry machining center according to claim 4, wherein a position of the chuck (1) connected with the convex sliding block (8) is provided with a limiting sliding groove (9), and the convex sliding block (8) slides inside the limiting sliding groove (9).

6. The centering chuck of the gantry machining center according to claim 5, wherein a pressurizing spring (10) is arranged inside the limiting sliding groove (9), and one end of the pressurizing spring (10) far away from the limiting sliding groove (9) abuts against the outer surface of the convex sliding block (8).