CN222932281U - Five machining centers are with flexible positioning fixture - Google Patents

Abstract

The utility model relates to the technical field of bed processing, specifically a flexible positioning fixture for a five-axis machining center, comprising a flexible quick-change base plate, a zero-point single base and a zero-point system unit, wherein the flexible quick-change base plate is fixedly connected to a workbench of the five-axis machining center, a plurality of groups of zero-point single bases are fixedly connected to the flexible quick-change base plate, and the zero-point system unit is fixedly installed on the zero-point single base. The flexible positioning fixture for the five-axis machining center realizes rapid installation, positioning and replacement of the fixture through a flexible overlap method and modular design, thereby meeting the semiconductor industry's demand for efficient and precise processing.

Description

Five machining centers are with flexible positioning fixture

Technical Field

The utility model relates to the technical field of lathe machining, in particular to a flexible positioning clamp for a five-axis machining center.

Background

In the field of semiconductor manufacturing, with continuous progress of technology and diversification of products, the complexity and processing precision requirements of semiconductor device parts are increasingly increased. These parts tend to have a wide variety of shapes, sizes and material properties and require high precision machining on multiple faces to meet stringent tolerance and roughness requirements. Therefore, the five-axis machining center becomes a key device for machining parts of the type, and can provide five degrees of freedom of movement, so that efficient and accurate machining of complex curved surfaces is achieved.

However, conventional five-axis machining centers face the challenge of frequently replacing zero-point positioning jigs when machining semiconductor parts of different sizes. Each component may require a clamp of a particular size to ensure machining accuracy, which results in the frequency and complexity of clamp replacement during machining. The clamp is replaced every time, complicated adjustment, alignment and test work are required, a large amount of machine time is consumed, the effective utilization rate of equipment is reduced, and the abnormal processing risk caused by improper operation is increased.

In addition, conventional clamp designs often lack flexibility and are difficult to quickly accommodate part tooling requirements of different sizes and shapes. This results in the need to prepare multiple sets of jigs during the machining process to cope with different machining tasks, increasing the manufacturing cost and storage space requirements of the jigs, and also inconveniencing the management and maintenance of the jigs.

Therefore, the flexible positioning clamp which can be fast matched with parts of various sizes and shapes, reduces clamp replacement time and improves machining efficiency is developed, and has important significance for improving the machining capacity and economic benefit of a five-axis machining center. Based on the background, the invention provides a flexible positioning clamp for a five-axis machining center.

Disclosure of utility model

In order to solve the problems, the utility model provides the flexible positioning clamp for the five-axis machining center, which realizes quick installation, positioning and replacement of the clamp through a flexible lap joint method and a modularized design, thereby meeting the requirements of the semiconductor industry on efficient and accurate machining.

The technical scheme of the utility model is as follows:

The utility model provides a five machining center are with flexible positioning fixture, includes flexible quick change bottom plate, zero point list base and zero point system unit, and flexible quick change bottom plate fixed connection is on five machining center's workstation, and a plurality of group zero point list base fixed connection is on flexible quick change bottom plate, and zero point system unit fixed mounting is on zero point list base.

The flexible quick-change bottom plate is locked to a workbench of the five-axis machining center through screws.

And a center alignment hole is formed in the center of the flexible quick-change bottom plate, and the center alignment hole coincides with the Z axis of the workbench of the five-axis machining center.

The heights of the zero point single bases are consistent, and the tolerance is less than or equal to 0.01mm.

The zero point single base is fixedly arranged on the flexible quick-change bottom plate through the ball lock unit, and a quick interface matched with the ball lock unit is arranged on the flexible quick-change bottom plate.

The utility model has the beneficial effects that:

1. According to the flexible positioning clamp for the five-axis machining center, disclosed by the utility model, the flexible positioning clamp for the five-axis machining center can be rapidly matched with semiconductor parts with different sizes and shapes by adopting the design of the flexible quick-change bottom plate and the interchangeable zero point single base, so that the frequency and complexity of clamp replacement are reduced. The flexible design enables adjustment, alignment and test of the clamp to be carried out without frequent shutdown in the processing process, thereby greatly improving the processing efficiency of the five-axis processing center.

2. The flexible positioning clamp for the five-axis machining center disclosed by the utility model allows one set of flexible positioning clamp to cover the machining requirements of various parts, reduces the requirements on various specific clamps, and reduces the manufacturing cost and the storage space requirements of the clamps. Meanwhile, the clamp can be used for a long time after being put into operation once, so that the cost of frequently replacing the clamp is saved, and the economic benefit is improved.

3. The flexible positioning clamp for the five-axis machining center reduces the risk of improper operation caused by frequent replacement and adjustment of the clamp, and improves the stability and safety of the machining process. Meanwhile, the accurate fixture positioning and locking mechanism also reduces the risk of collision between the machine tool spindle and the periphery of the tool and between the tool and the tool.

4. According to the flexible positioning clamp for the five-axis machining center, disclosed by the utility model, the equipment utilization rate of the five-axis machining center is improved by reducing the clamp replacement time and improving the machining efficiency. The equipment can be in a processing state for a longer time, the downtime is reduced, and the overall production efficiency and the productivity are improved.

Drawings

The aspects and advantages of the present utility model will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model.

In the drawings:

FIG. 1 is a schematic perspective view of a flexible positioning fixture for a five-axis machining center according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a flexible quick-change bottom plate of a flexible positioning fixture for a five-axis machining center according to an embodiment of the utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

Fig. 4 is a schematic structural view of a zero point single base of a flexible positioning fixture for a five-axis machining center according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

FIG. 6 is a schematic view of two flexible mounting (post-mounting and pre-mounting) of a flexible positioning jig for a five-axis machining center according to an embodiment of the present utility model;

The components represented by the reference numerals in the figures are:

The utility model discloses a flexible quick-change bottom plate, which comprises a 1, a 2, a zero point single base, a 3, a ball lock unit, a 4 and a zero point system unit.

Detailed Description

The flexible positioning clamp for the five-axis machining center adopts a spliced flexible lap joint mode, various flexible zero positioning structures can be changed, clamping requirements of parts with different sizes are met, machine shutdown caused by frequent replacement of the clamp is avoided, clamping types can be quickly changed like building blocks are quickly switched, and high precision requirements of stable clamping force and repeated positioning are met through high-precision matching parts.

As shown in fig. 1, the flexible positioning fixture for the five-axis machining center comprises a flexible quick-change bottom plate 1, a zero point single base 2 and a zero point system unit 4, wherein the flexible quick-change bottom plate 1 is fixedly connected to a workbench of the five-axis machining center, a plurality of groups of zero point single bases 2 are fixedly connected to the flexible quick-change bottom plate 1, and the zero point system unit 4 is fixedly installed on the zero point single base 2.

The zero system unit 4 is a German Huffman zero quick-change system, and is also a very common quick-positioning locking mode in the market through pneumatic tensioning of a pull nail and a zero positioning disc.

As shown in fig. 2 and 3, the flexible quick-change bottom plate 1 is designed to be suitable for quick-change interfaces of various installation positions, so that the flexible lap joint zero point single base 2 is convenient.

As shown in fig. 4 and 5, the zero point single base 2 is matched with any outsourcing zero point system unit 4 for use, and an air passage is internally designed, so that the requirements of hardness and weight reduction of a clamp base body are met by adopting a split structure, and the operation and interchangeability are facilitated.

According to the invention, the flexible zero point positioning base and the flexible universal base are designed to be in quick lap joint, so that the flexible zero point positioning base can be quickly installed and positioned without adjustment and test. The machine tool main shaft and the cutter can be matched with various parts with different sizes, so that collision caused by collision between the machine tool main shaft and the cutter and the periphery of the tool during processing is avoided. The flexible quick-change base plate is designed, and 6 zero point single bases can be installed at maximum. According to the size matching of different parts to be processed, the maximum coverage range is 600X600MM, and 1 zero point single base can be placed independently. The ball lock quick-change system is used for quick locking and positioning, so that the repeated positioning accuracy is guaranteed, meanwhile, a zero point single base is quickly and efficiently locked, and a group of flexible zero point positioning assemblies can cover various zero point positioning bases. The processing range is improved.

The flexible quick-change bottom plate 1 is locked to a workbench of the five-axis machining center through screws.

The center of the flexible quick-change bottom plate 1 is provided with a center alignment hole, and the center alignment hole coincides with the Z axis of a workbench of the five-axis machining center.

The heights of the zero point single bases 2 are consistent, and the tolerance is less than or equal to 0.01mm.

The zero point single base 2 is fixedly arranged on the flexible quick-change bottom plate 1 through the ball lock unit 3, and a quick interface for being matched with the ball lock unit 3 is arranged on the flexible quick-change bottom plate 1.

The ball lock system is of a American Jacfos brand, is a common locking tool in the market, and is locked by manual tightening and ball extrusion, and is of a quick-change structure.

Specific implementation steps

1. The flexible quick-change bottom plate 1 is locked to a workbench of a five-axis machining center through screws, and a center alignment hole of the flexible quick-change bottom plate 1 coincides with the Z axis of the workbench, so that the runout and the flatness of the end face are ensured.

2. And mounting outsourced mature part positioning system units on the zero point single base 2, wherein 6 parts are in a group, so that the heights of all the zero point single bases after mounting are kept consistent, and the tolerance is less than or equal to 0.01mm. Any zero point single base 2 may be used interchangeably.

3. According to the size of the part to be processed, a plurality of zero point single bases 2 are selected and installed at required positions through the ball lock units 3, and corresponding marked positions are designed on the flexible quick-change bottom plate 1, so that operators can conveniently and quickly position and install the parts at specific positions. The ball lock unit 3 can be positioned and locked, and can be directly screwed by hand without using a spanner, thereby being convenient and quick.

4. When the zero point single base is installed on the corresponding position, the zero point single base can be connected with the zero point single base 2 through a special tool, and the zero point single base can be used.

An example of before and after installation is shown in fig. 6.

This five machining centers are with flexible positioning fixture through the design to flexible quick change bottom plate 1, can install zero point list base 2 fast, need not secondary clamping and alignment, quick lifting means's throughput, once throw into can save the input cost of a large amount of fixed zero point positioning fixtures to be convenient for manage and maintain.

The flexible positioning clamp for the five-axis machining center is simple in design structure, simple to assemble and convenient to maintain. The installation difficulty of operators is also reduced, and the operation threshold is lowered.

This five processing centers are with flexible positioning fixture through utilizing ripe zero point positioning system module and ball lock system module, matches the use with the frock of self-development design, and the at utmost utilizes respective advantage, promotes the utilization ratio and the utilization ratio of equipment, lets five processing of equipment more smooth and easy.

Claims (5)

1. The utility model provides a five machining center are with flexible positioning fixture, its characterized in that includes flexible quick change bottom plate (1), zero point list base (2) and zero point system unit (4), and flexible quick change bottom plate (1) fixed connection is on five machining center's workstation, and a plurality of zero point list base (2) fixed connection are on flexible quick change bottom plate (1), and zero point system unit (4) fixed mounting is on zero point list base (2).

2. A flexible positioning clamp for a five-axis machining center according to claim 1, wherein the flexible quick-change bottom plate (1) is locked to a workbench of the five-axis machining center by screws.

3. The flexible positioning fixture for the five-axis machining center according to claim 1, wherein a center alignment hole is formed in the center of the flexible quick-change bottom plate (1), and the center alignment hole coincides with the Z axis of a workbench of the five-axis machining center.

4. The flexible positioning clamp for the five-axis machining center according to claim 1, wherein the heights of all zero point single bases (2) are consistent, and the tolerance is less than or equal to 0.01mm.

5. The flexible positioning clamp for the five-axis machining center according to claim 1, wherein the zero point single base (2) is fixedly arranged on the flexible quick-change base plate (1) through the ball lock unit (3), and a quick interface for being matched with the ball lock unit (3) is arranged on the flexible quick-change base plate (1).