CN223863328U - Four-axis linkage positioning and clamping tool - Google Patents

Abstract

The utility model belongs to the technical field of clamping tools, and particularly relates to a four-axis linkage positioning and clamping tool which comprises a clamping seat, wherein the clamping seat is installed with a four-axis linkage machine tool through a machine tool adapter seat, an arc-shaped area is formed on the clamping seat, an arc-shaped surface matched with the outer diameter of a workpiece is formed on the outer side of the arc-shaped area, a clamping block positioned on the inner side of the workpiece is arranged above the clamping seat, the clamping block clamps the workpiece on the clamping seat through a rotary cylinder, the clamping block and a sinking groove are distributed in a staggered manner, the clamping block is matched with the outer diameter of the workpiece through the arc-shaped area so as to facilitate the positioning of the clamping block before clamping on the clamping seat, and simultaneously, the clamping block and the through hole can be simultaneously processed through the matching of a set avoidance hole and the four-axis linkage machine tool during single clamping, so that the machining precision is ensured, and secondly, the clamping block is arranged on the inner side of the workpiece through the rotary cylinder, the whole volume of the tool can be reduced, and the clamping consistency, the reliability and the convenience are ensured through the rotary cylinder.

Description

Four-axis linkage positioning and clamping tool

Technical Field

The utility model belongs to the technical field of clamping tools, and particularly relates to a four-axis linkage positioning and clamping tool.

Background

The positioning and clamping tool is a fixture system specially designed for a four-axis machine tool, and aims to realize high-precision positioning and clamping of workpieces, and meanwhile, the multi-degree-of-freedom motion capability of the four-axis machine tool is fully utilized, and the tool is generally used for processing workpieces with complex geometric shapes, such as aerospace parts, automobile parts, dies and the like;

The existing positioning tool has the defects that the existing positioning tool is poor in fusion with a workpiece, two surfaces need to be clamped twice, the operation convenience is poor, and the precision can be influenced; the clamping jaw is arranged on the outer side of the workpiece and is required to press the workpiece in a manual mode, firstly, the clamping jaw is arranged on the outer side of the workpiece to cause large integral size of the tool, multi-axis movement is not facilitated, and secondly, the consistency, reliability and convenience of the manual pressing mode are poor;

in order to solve the problems, the application provides a four-axis linkage positioning and clamping tool.

Disclosure of utility model

In order to solve the problems in the prior art, the utility model provides a four-axis linkage positioning and clamping tool, which has the characteristics of improving clamping consistency and reliability, reducing the volume of the tool and being capable of processing two surfaces simultaneously.

The four-axis linkage positioning and clamping tool comprises a clamping seat, wherein the clamping seat is installed with a four-axis linkage machine tool through a machine tool adapter seat, an arc-shaped area is formed on the clamping seat, an arc-shaped surface matched with the outer diameter of a workpiece is formed on the outer side of the arc-shaped area, a clamping block positioned on the inner side of the workpiece is arranged above the clamping seat, the workpiece is clamped on the clamping seat through a rotary cylinder by the clamping block, the clamping block and a sinking groove are distributed in a staggered mode, and avoidance holes for through hole machining are formed in the clamping seat in a penetrating mode.

As a preferable technical scheme of the utility model, the clamping block is U-shaped, the front end of the clamping block is provided with a sunken clamping part, and the bottom of the clamping part is fixedly provided with a clamping bolt which is tightly pressed with the upper surface of the workpiece.

As a preferable technical scheme of the utility model, a connecting hole fixedly connected with the output shaft of the rotary cylinder is formed in the clamping block, and a threaded hole in threaded fit with the clamping bolt is formed in the clamping part.

As a preferable technical scheme of the utility model, the clamping seat is internally penetrated with a cylinder hole for installing a rotary cylinder, and the rotary cylinder penetrates through the cylinder hole and is fixed with the clamping seat from the bottom through bolts.

As a preferable technical scheme of the utility model, a plurality of groups of circumferentially distributed clamping blocks and rotating cylinders are arranged in an arc shape outside an arc-shaped area.

As a preferable technical scheme of the utility model, the clamping seats are vertically distributed on the machine tool adapter seat and are fixed through bolts.

Compared with the prior art, the clamping fixture has the beneficial effects that the arc-shaped area is matched with the outer diameter of a workpiece, so that the workpiece is conveniently positioned before being clamped on the clamping seat, meanwhile, the set avoidance hole is matched with the four-axis linkage machine tool, so that the simultaneous machining of a sinking groove and a through hole can be realized during single clamping, the secondary clamping is avoided, the machining precision is ensured, the clamping block is arranged on the inner side of the workpiece through the rotary cylinder, the whole volume of the fixture can be reduced, and the clamping consistency, the reliability and the convenience are ensured through the rotary cylinder.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the front view of the present utility model;

FIG. 2 is a schematic view of the bottom view of FIG. 1;

FIG. 3 is a schematic view of the structure of the clamp block in a unclamped state;

FIG. 4 is a schematic view of the structure of FIG. 3 in a top view and with a workpiece disposed thereon;

FIG. 5 is a schematic view of a structure of a holder;

FIG. 6 is a schematic diagram of a split structure of a clamping block;

In the figure, 1, a clamping seat, 11, an arc-shaped area, 12, an avoidance hole, 13, a cylinder hole, 2, a clamping block, 21, a clamping part, 211, a threaded hole, 22, a connecting hole, 23, a clamping bolt, 3, a rotary cylinder, 4, a machine tool adapter, 5, a workpiece, 51, a sinking groove, 52 and a through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-6, the utility model provides a four-axis linkage positioning and clamping tool, which comprises a clamping seat 1, wherein the clamping seat 1 is installed with a four-axis linkage machine tool through a machine tool adapter seat 4, an arc-shaped area 11 is formed on the clamping seat 1, an arc-shaped surface matched with the outer diameter of a workpiece 5 is formed on the outer side of the arc-shaped area 11, a clamping block 2 positioned on the inner side of the workpiece 5 is arranged above the clamping seat 1, the clamping block 2 clamps the workpiece 5 on the clamping seat 1 through a rotary cylinder 3, the clamping block 2 and a sink 51 are distributed in a staggered manner, and an avoidance hole 12 for processing a through hole 52 is formed in the clamping seat 1 in a penetrating manner.

Specifically, the clamping block 2 is in a U shape, a sunken clamping portion 21 is formed at the front end of the clamping block, a clamping bolt 23 pressed against the upper surface of the workpiece 5 is fixed at the bottom of the clamping portion 21, the clamping portion 21 which is arranged in a sunken manner in the embodiment is not easy to deform, the force transmission effect is better, and the pressing height of the clamping bolt 23 can be adjusted through threads of the threaded hole 211.

Specifically, the connecting hole 22 fixedly connected with the output shaft of the rotary cylinder 3 is formed in the clamping block 2, the threaded hole 211 in threaded fit with the clamping bolt 23 is formed in the clamping portion 21, in this embodiment, the connecting hole 22 and the output shaft of the rotary cylinder 3 can be axially inserted and combined through a non-center connecting piece, then compressed through a bolt, and the stability is higher.

Specifically, a cylinder hole 13 for installing a rotary cylinder 3 is formed in the clamping seat 1 in a penetrating manner, the rotary cylinder 3 penetrates through the cylinder hole 13 and is fixed with the clamping seat 1 from the bottom through a bolt, in this embodiment, the rotary cylinder 3 is a clamping rotary pressing cylinder, three actions of clamping, rotating and pressing down are synchronously or sequentially controlled through pneumatic driving, the working principle is that the piston in the cylinder is pushed by compressed air to realize the pressing down or lifting of the linear motion, and meanwhile, the linear motion is converted into the rotary motion through a gear rack, a spiral groove and other mechanical structures, so that the clamping block 2 is driven to fix or loosen the workpiece 5 under the pneumatic action.

Specifically, the clamping blocks 2 and the rotary air cylinders 3 are provided with a plurality of groups distributed circumferentially in an arc shape outside the arc-shaped area 11, in this embodiment, the workpiece 5 is firmly clamped by the plurality of groups of the clamping blocks 2 and the rotary air cylinders 3 which are arranged circumferentially, and meanwhile, the clamping blocks 2, the sink grooves 51 and the through holes 52 form avoidance.

Specifically, the clamping seat 1 and the machine tool adapter 4 are vertically distributed and are fixed through bolts, and in the embodiment, the step fixed with the clamping seat 1 is formed on the side surface of the machine tool adapter 4, so that the connection stability of the machine tool adapter 4 is ensured.

The working principle and the use flow of the utility model are that 15 which is matched with the outer diameter of a workpiece 5 is formed on a clamping seat 1, meanwhile, an avoidance hole 12 which can be matched with a through hole 52 in a machining way is formed, the clamping seat 1 passes through a cylinder hole 13 from the bottom upwards and then is fixed through a bolt from the bottom, a clamping bolt 23 is fixed at the bottom of a clamping part 21 through a threaded hole 211, a connecting hole 22 is matched with an output shaft of a rotary cylinder 3 and is pressed and fixed through the bolt;

As shown in fig. 3, in the unclamped state of the clamping block 2, the workpiece 5 is matched with the arc-shaped area 11 and placed at the upper end of the clamping seat 1, at the moment, the rotary cylinder 3 is driven to rotate and move downwards, so that the workpiece 5 is pressed on the clamping seat 1 through the clamping bolt 23, a sinking groove 51 is milled on the upper surface of the workpiece 5, then the clamping seat 1 and the workpiece 5 are turned over under the movement of the four-axis linkage machine tool, through holes 52 are formed through the cylinder holes 13, the workpiece 5 is turned over to the upper end of the clamping seat 1 after the machining is completed, the clamping block 2 is unclamped through the rotary cylinder 3, and the workpiece 5 is removed.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The four-axis linkage positioning and clamping tool comprises a clamping seat (1), wherein the clamping seat (1) is installed with a four-axis linkage machine tool through a machine tool adapter seat (4), the four-axis linkage machine tool is characterized in that an arc-shaped area (11) is formed on the clamping seat (1), an arc-shaped surface matched with the outer diameter of a workpiece (5) is formed on the outer side of the arc-shaped area (11), a clamping block (2) positioned on the inner side of the workpiece (5) is arranged above the clamping seat (1), the workpiece (5) is clamped on the clamping seat (1) through a rotary cylinder (3), the clamping block (2) and a sink groove (51) are distributed in a staggered mode, and a avoiding hole (12) for machining a through hole (52) is formed in the clamping seat (1) in a penetrating mode.

2. The four-axis linkage positioning and clamping tool according to claim 1 is characterized in that the clamping block (2) is U-shaped, a sunken clamping part (21) is formed at the front end of the clamping block, and a clamping bolt (23) pressed with the upper surface of the workpiece (5) is fixed at the bottom of the clamping part (21).

3. The four-axis linkage positioning and clamping tool according to claim 2 is characterized in that a connecting hole (22) fixedly connected with an output shaft of a rotary cylinder (3) is formed in the clamping block (2), and a threaded hole (211) in threaded fit with a clamping bolt (23) is formed in the clamping portion (21).

4. The four-axis linkage positioning and clamping tool according to claim 1 is characterized in that a cylinder hole (13) for installing a rotary cylinder (3) is formed in the clamping seat (1) in a penetrating mode, and the rotary cylinder (3) penetrates through the cylinder hole (13) and is fixed with the clamping seat (1) from the bottom through bolts.

5. The four-axis linkage positioning and clamping tool according to claim 1 is characterized in that a plurality of groups distributed circumferentially are arranged on the outer side of the arc-shaped area (11) in an arc-shaped mode of the clamping blocks (2) and the rotary air cylinders (3).

6. The four-axis linkage positioning and clamping tool according to claim 1 is characterized in that the clamping seats (1) are vertically distributed on the machine tool adapter seat (4) and are fixed through bolts.