CN217316918U

CN217316918U - Universal clamp assembly used on four-axis machining center

Info

Publication number: CN217316918U
Application number: CN202220102144.8U
Authority: CN
Inventors: 陈小勇; 岳卫民; 何超峰; 熊朝林; 高凯迪; 唐启宜; 刘剑
Original assignee: Ahwit Precision Shanghai Co ltd
Current assignee: Ahwit Precision Shanghai Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-08-30
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses a universal fixturing subassembly that uses on four-axis machining center, including ring flange, strengthening rib, anchor clamps mainboard, the rear end face of ring flange is fixed to four-axis machining center's four-axis carousel, the anchor clamps mainboard is whole to be the T font, the horizontal limit of T font is fixed to the preceding terminal surface of ring flange, the edge is erected to the T font the vertical direction of the preceding terminal surface of ring flange extends forward, the unsettled setting of front end on edge is erected to the T font, the front on edge is erected to the T font is seted up and is adapted to the first screw hole of clamping work piece or general frock, the one end of strengthening rib is fixed to the preceding terminal surface of ring flange is followed the back on edge is erected to the T font extends forward and supports and leans on the anchor clamps mainboard. The utility model relates to a rationally, simple structure, installation convenient operation, low in manufacturing cost are honest and clean and can improve product machining precision.

Description

Universal clamp assembly used on four-axis machining center

Technical Field

The utility model relates to a machining technology field especially relates to a universal fixturing subassembly that uses on four-axis machining center.

Background

In the field of machining, as the rapid development of technology has higher and higher requirements on the precision and complexity of machined parts, the corresponding multi-axis machine tool is more and more widely applied in machining, wherein particularly, the four-axis machining center is widely applied in production due to the advantages that the four-axis machining center is low in price, high in machining precision, capable of completing multi-surface machining through one-time clamping, capable of reducing the labor intensity of workers, reducing the positioning error of multiple times of clamping of the traditional three-axis machine tool and the like.

However, in the conventional four-axis machining method, a precision vice 1 or a special fixture is fixed on a gap bridge plate 3 with a tailstock 2 to clamp and clamp a first workpiece 4 for machining, as shown in fig. 1, because the gap bridge plate 3 is arranged between a four-axis turntable 5 and the tailstock 2, different axis errors are inevitably generated between the center of the four-axis turntable 5 and the center of the tailstock 2 in the assembling and correcting processes of the gap bridge plate, so that the first workpiece 4 clamped on the gap bridge plate has errors after different surface rotation and surface changing machining, and the spatial distortion errors generated after the rotation due to the different axes at the two ends of the four axes are difficult to be corrected by adjusting data; in addition, due to the limitation of the bridge plate structure, the machining of as many surfaces as possible cannot be completed by clamping at one time.

Accordingly, those skilled in the art have endeavored to develop a universal fixture assembly for use in a four-axis machining center to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of the prior art, the utility model aims to solve the technical problem of how to provide a reasonable in design, simple structure, installation convenient operation, low in manufacturing cost are honest and clean and can improve the general fixture assembly who uses on four-axis machining center of being fit for of product machining precision.

In order to realize the above-mentioned purpose, the utility model provides a universal fixturing subassembly that uses on four-axis machining center, including ring flange, strengthening rib, anchor clamps mainboard, the rear end face of ring flange is fixed to four-axis machining center's four-axis carousel, the anchor clamps mainboard is whole to be the T font, the horizontal limit of T font is fixed extremely the preceding terminal surface of ring flange, the limit is followed to the T font the vertical direction of the preceding terminal surface of ring flange extends forward, the unsettled setting of front end on limit is erected to the T font, the first screw hole that is suitable for clamping work piece or general frock is offered in the front on limit is erected to the T font, the one end of strengthening rib is fixed extremely the preceding terminal surface of ring flange is followed the back on the limit is erected to the T font extends forward and supports and leans on the anchor clamps mainboard.

Preferably, the universal tool comprises a precision vice or a special clamp for clamping a workpiece.

Furthermore, the flange plate comprises a first mounting hole, and the flange plate penetrates through the first mounting hole through a screw and is fixedly connected with the four-axis turntable.

Furthermore, the four-axis turntable comprises a T-shaped block, wherein the T-shaped block is arranged in a T-shaped groove in the four-axis turntable, and the flange plate penetrates through the first mounting hole through a screw to be fixedly connected with the T-shaped block.

Furthermore, the flange plate further comprises a first positioning pin hole, and the first positioning pin hole is matched with a first positioning pin arranged on the four-axis turntable.

Further, the ring flange still includes second screw hole and second locating pin, the anchor clamps mainboard the T font is provided with second locating pin hole and second mounting hole on the horizontal edge, the second locating pin hole with the second locating pin cooperatees, the anchor clamps mainboard pass through the screw second mounting hole get into the second screw hole with ring flange fixed connection.

Furthermore, a third positioning pin hole is further formed in the front face of the T-shaped vertical edge of the clamp main board, and the third positioning pin hole is matched with a third positioning pin arranged on the workpiece or the universal tool.

Further, the front end of the T-shaped vertical edge of the clamp main board is provided with a clearance groove, the side surface of the clearance groove faces the front end face of the clamp main board and is provided with a through hole, and the through hole is configured to penetrate through a screw to fix a workpiece or a universal tool to the front end face of the clamp main board.

Furthermore, a fourth positioning pin hole is further formed in the side face of the clearance groove, facing the front end face of the clamp main board, and the fourth positioning pin hole is matched with a fourth positioning pin arranged on the workpiece or the universal tool.

The utility model has the advantages that:

1. the utility model has reasonable design, simple structure and low manufacturing cost;

2. the problems of corner error and difficult adjustment in the processing of the traditional bridge plate clamping mode can be effectively reduced by using the clamp;

3. the limitation of the gap bridge plate in the multi-surface processing of the workpiece is solved, so that the processing efficiency and the qualification rate of the product are improved, and the design and use requirements of customers are finally met.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic view of a prior art workpiece machining using a gap bridge plate;

FIG. 2 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a workpiece according to a preferred embodiment of the present invention;

FIG. 4 is a schematic view of a workpiece according to a preferred embodiment of the present invention;

fig. 5 is a schematic view of processing a workpiece according to a preferred embodiment of the present invention.

The universal fixture comprises a main body, a precision vice, a tailstock, a bridge plate, a workpiece I, a four-axis rotary table, a workpiece II, a universal fixture assembly, a flange plate, reinforcing ribs, a fixture main plate and a clearance groove, wherein the precision vice is 1, the tailstock is 2, the bridge plate is 3, the workpiece I is 4, the four-axis rotary table is 5, the universal fixture assembly is 6, the workpiece II is 10, the flange plate is 11, the reinforcing ribs are 12, the fixture main plate is 13, and the clearance groove is 14.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for clarity and understanding of the technical contents. The present invention may be embodied in many different forms of embodiments, and the scope of the invention is not limited to the embodiments described herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

Examples

The embodiment provides a reasonable in design, simple structure, installation convenient operation, low in manufacturing cost are honest and clean and can improve the universal fixturing subassembly 10 that uses on the four-axis machining center of suitable installation that product machining precision goes up, and it includes following component parts:

flange plate 11: the universal clamp assembly 10 is connected with a four-axis turntable 5 of a machining center through a positioning pin, a screw and a T-shaped block;

reinforcing ribs 12: the flange plate 11 of the universal clamp assembly 10 is connected with the clamp main plate 13 to play a role in strengthening;

the fixture main board 13: the clamp is used for clamping workpieces or other universal tools (such as a precision vice 1 or a special clamp).

The universal clamp assembly 10 is formed by connecting the three parts together through a positioning pin and an inner hexagonal cylindrical head screw, and the front plane and the right end plane of the clamp main board 13 and the left end surface (front end surface) of the flange plate are guaranteed to have high position precision during machining, so that the functional surface of the universal clamp assembly 10 is guaranteed to have high position precision after being installed on a four-axis machining center. In addition, a positioning pin hole is formed in the middle of the flange plate 11 of the universal clamp assembly 10, and the universal clamp assembly is positioned and connected with the four-axis turntable 5 through a positioning pin and a screw when being installed. The main fixture plate 13 is a main working part of the main fixture plate, and the main fixture plate 13 is provided with a positioning pin hole, a screw hole and a clearance groove 14 on the front surface, and the positioning pin hole and the screw hole are mainly fixed on a fixture (such as a precision vice 1 and a special fixture for processing casting products) for clamping a workpiece, which is arranged on the main fixture plate 13, through a positioning pin and a screw.

As shown in fig. 4, the precision vise 1 or the special fixture is fixedly mounted on the front surface of the fixture main plate 13 of the general fixture assembly 10 through a positioning pin and a screw, and is used for clamping the workpiece one 4 shown in fig. 3, and the flange plate 11 of the general fixture assembly 10 is connected with the four-axis turntable 5 of the machining center through a positioning pin, a screw and a T-shaped block.

As shown in fig. 5, the clearance groove 14 is used for reversely suspending the screw when the second workpiece 6 is mounted on the side surface; the left end face (front end face) of the clamp main board 13 is provided with a positioning pin hole and a through hole (screw via hole), and the multi-face processing of the second workpiece 6 in the direction of rotating 360 degrees can be realized by reversely hanging the second workpiece 6 through a screw and a positioning pin.

When the clamp assembly is used for processing a workpiece, the rotation error of the workpiece is only related to the rotation accuracy of four shafts, and the torsion error generated during rotation due to the fact that the center of a four-shaft turntable is not concentric with the center of a tailstock in the traditional gap bridge plate clamping mode is avoided, so that the position accuracy of multiple surfaces of the processed product is higher than that of the traditional mode, and the error correction is convenient and simple; in addition, the left end face of the clamp main board can meet the requirement of clamping and processing a plurality of faces at one time, so that the clamping times can be reduced, the processing efficiency can be improved, and the product quality can be improved.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art without the use of inventive faculty. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a universal fixturing subassembly that uses on four-axis machining center, a serial communication port, including ring flange, strengthening rib, anchor clamps mainboard, the rear end face of ring flange is fixed to four-axis turntable at four-axis machining center, the anchor clamps mainboard is whole to be the T font, the horizontal limit of T font is fixed extremely the preceding terminal surface of ring flange, the limit edge is erected to the T font the vertical direction of the preceding terminal surface of ring flange extends forward, the unsettled setting of front end on limit is erected to the T font, the first screw hole that is suitable for clamping work piece or general frock is offered in the front on limit is erected to the T font, the one end of strengthening rib is fixed extremely the preceding terminal surface of ring flange is followed the back on limit is erected to the T font extends forward and supports and leans on the anchor clamps mainboard.

2. The universal fixture assembly for use on a four-axis machining center of claim 1, wherein the universal tooling includes a precision vise or a special fixture for clamping a workpiece.

3. The universal fixture assembly for use in a four-axis machining center of claim 1, wherein the flange includes first mounting holes, the flange being fixedly attached to the four-axis turntable by screws passing through the first mounting holes.

4. The universal fixture assembly for use in a four-axis machining center of claim 3, further comprising a T-block disposed within a T-slot on the four-axis turntable, the flange plate being fixedly attached to the T-block by screws passing through the first mounting holes.

5. The universal fixture assembly for use in a four-axis machining center of claim 3, wherein the flange plate further comprises a first registration pin hole that mates with a first registration pin provided on the four-axis turntable.

6. The universal fixture assembly for four-axis machining centers as recited in claim 4, wherein said flange further comprises a second screw hole and a second positioning pin, a second positioning pin hole and a second mounting hole are formed in said T-shaped lateral edge of said fixture main board, said second positioning pin hole is matched with said second positioning pin, and said fixture main board is fixedly connected to said flange by passing a screw through said second mounting hole into said second screw hole.

7. The universal fixture assembly for four-axis machining center according to claim 1, wherein the front surface of the T-shaped vertical edge of the fixture main plate is further provided with a third positioning pin hole, and the third positioning pin hole is matched with a third positioning pin arranged on the workpiece or the universal fixture.

8. The universal fixture assembly for four-axis machining center according to claim 1, wherein the front end of the T-shaped vertical edge of the fixture main plate is provided with a clearance groove, a side surface of the clearance groove is provided with a through hole facing the front end surface of the fixture main plate, and the through hole is configured to pass through a screw to fix a workpiece or a universal tool to the front end surface of the fixture main plate.

9. The universal fixture assembly for use on a four-axis machining center of claim 8, wherein the universal tooling comprises a precision vise or a special fixture for clamping a workpiece.

10. The universal fixture assembly used in four-axis machining center according to claim 8, wherein the side surface of the clearance groove facing the front end surface of the fixture main plate is further provided with a fourth positioning pin hole, and the fourth positioning pin hole is matched with a fourth positioning pin arranged on the workpiece or the universal fixture.