CN203109395U - Linear cutting locating device - Google Patents

Abstract

The utility model provides a linear cutting locating device, and belongs to the technical field of linear cutting machine tool locating machining. The linear cutting locating device solves the problems that an existing cutting machine tool which utilizes a dial indicator or a micrometer gauge is low in locating efficiency, and low in accuracy, and is limited by the technological level and the proficiency of an operator. The linear cutting locating device comprises a right-angle locating plate used for locating a workpiece, a sizing block used for fixing the right-angle locating plate on a workbench of a linear cutting machine tool and a workpiece supporting plate are arranged on the bottom face of the right-angle locating plate, the supporting plate stretches out of one side of the right-angle locating plate and forms a step with the right-angle locating plate, the right-angel locating plate is processed to form a 90-degree L-shaped structure, and two sides of the right-angle locating plate are respectively used as a transverse shaft and a longitudinal shaft for workpiece location. The linear cutting locating device has the advantages that locating accuracy is high, equipment is easy to manufacture, and mounting and using are convenient.

Description

Wire cutting positioning device

technical field

The utility model belongs to the technical field of wire cutting machine tool positioning processing, in particular to a wire cutting positioning device.

Background technique

When wire-cutting the inner shape of the workpiece, it involves using the shape of the workpiece to locate and align, and start processing after ensuring that the shape positioning surface is consistent with the direction of the machine tool coordinate system.

The general clamping method of the wire cutting machine is: use two movable beams as the workbench to provide support, and use the pressure plate to fix and clamp the workpiece. The above-mentioned devices can realize clamping, but they are not positioning devices.

When positioning is required, it is generally necessary to use a dial indicator or a dial gauge. The specific method is to adsorb the magnetic base of the dial indicator or dial indicator on the non-moving part of the machine tool, make the contact of the instrument touch the surface of the workpiece, move the worktable, and observe the pointer of the meter at the same time. If the pointer does not move when the workpiece moves or Micro-movement means that the surface of the workpiece is parallel to the corresponding coordinate axis of the machine tool, otherwise it should be adjusted. Some people also use this method to align the workbench so that the workbench is parallel to a certain coordinate axis and then used for positioning.

The disadvantages of the above method are: first, the efficiency is not high, and frequent alignment is required; second, the accuracy is not high, which is limited by the surface quality of the workpiece or the manufacturing accuracy of the workbench; third, it is limited by the technical level and proficiency of the operator, especially when working The adjustment of the platform is difficult to fine-tune.

Therefore, a wire cutting positioning method is needed, which can not only ensure high precision, but also have high efficiency, and can conveniently realize precise positioning.

Utility model content

The purpose of this utility model is to provide a precise positioning for wire cutting processing, which can realize fast positioning and ensure high positioning accuracy, and is used for precise positioning of workpieces and inspection of verticality of adjacent positioning surfaces of workpieces. Wire cutting positioning device.

The purpose of this utility model is achieved in that:

The wire cutting positioning device is characterized in that: it includes a right-angle positioning plate for positioning workpieces, and the bottom surface of the right-angle positioning plate is provided with a shim and a workpiece supporting plate for fixing it on the workbench of the wire cutting machine tool. The plate protrudes from one side of the angle between the right-angle positioning plate and forms a step with the right-angle positioning plate. The right-angle positioning plate is an “L”-shaped structure formed by processing to form a 90-degree angle. axis and vertical axis.

The top and bottom sides of the right-angle positioning plate, pad iron, and supporting plate are all smooth surfaces formed by grinding, and the bottom surface of the supporting plate and the bottom surface of the supporting plate are bonded and fixed by a metal adhesive. Corresponding bolt holes are set on the pad iron and the right-angle positioning plate, and the screws pass through the bolt holes on the pad iron and the right-angle positioning plate to press the pad iron and the right-angle positioning plate, and then press the pad iron, the right-angle positioning plate and the workbench. fasten.

The shape of the supporting plate is similar to that of the right-angle positioning plate, and it is in an “L” shape, and the center line of the angle between the supporting plate and the right-angle positioning plate is located on the same straight line.

The thickness of the pad iron is greater than that of the supporting plate, and there is a gap between the supporting plate and the workbench.

The right-angle positioning plate is a steel plate with a thickness of 10-15mm.

The right-angle positioning plate is provided with several screw holes for cooperating with screws or pressing plates to press the workpiece.

The positioning method of the wire cutting positioning device comprises the following steps:

1 Prefabrication of positioning device:

1-1 Manufacture of the right-angle positioning plate: select one of the worktables of the wire-cutting machine tool to fix it so that it does not move, and fix the pad iron and the steel plate blank of the right-angle positioning plate after grinding the top and bottom surfaces and drilling screw holes on the On the above-mentioned workbench, the steel plate is cut into a right-angled right-angled positioning plate along the X and Y coordinate axes of the machine tool with a wire-cutting machine tool;

1-2 Production of the pallet: fix the pallet steel blank after grinding the top and bottom surfaces on the above pad iron, and cut the pallet steel blank into a right-angle pallet with a wire cutting machine;

2. Installation of the positioning device: fix the pad iron and the right-angle positioning plate on the above-mentioned non-moving workbench, and glue the top surface of the supporting plate to the bottom surface of the right-angle positioning plate.

3. Use of the positioning device: place the workpiece on the step formed by the right-angle positioning plate and the supporting plate, the reference plane of the workpiece and the side surface of the angle between the right-angle positioning plate and the side where the angle is located, and then press the workpiece with the pressure plate and the screw.

Compared with the prior art, the utility model has outstanding and beneficial technical effects as follows:

1. High positioning accuracy. The positioning surface of the positioning element is processed on-site on the wire cutting machine tool, which is completely consistent with the coordinate system direction of the machine tool. There is no installation error, manufacturing error, etc., which can ensure high positioning accuracy.

2. The structure of the equipment is simple, the materials are easy to purchase, and it is convenient for self-made. The main processing can be carried out on the wire cutting machine.

3. It is convenient to install, manufacture and use, and does not require a high technical level.

4. Does not affect the original function and use of the workbench.

5. The positioning device also has a test function, which can test whether the adjacent reference planes of the workpiece are vertical.

6. Once made, it can be used for many years.

Description of drawings

Fig. 1 is a structural exploded view of the utility model.

Fig. 2 is a structural use state diagram of the utility model.

Detailed ways

The utility model is further described below in conjunction with accompanying drawing with specific embodiment, referring to Fig. 1-2:

The wire cutting positioning device includes a right-angle positioning plate 1 for positioning workpieces. The bottom surface of the right-angle positioning plate is provided with a shim 3 and a workpiece supporting plate 4 for fixing it on the workbench 2 of the wire cutting machine tool. The support The plate protrudes from one side of the angle between the right-angle positioning plate and forms a step with the right-angle positioning plate. The right-angle positioning plate is an “L”-shaped structure formed by processing to form a 90-degree angle. axis and vertical axis.

The top and bottom sides of the right-angle positioning plate, pad iron, and supporting plate are all smooth surfaces formed by grinding, and the bottom surface of the supporting plate and the bottom surface of the supporting plate are bonded and fixed by a metal adhesive. Corresponding bolt holes 5 are provided on the pad iron and the right-angle positioning plate, and the screws pass through the bolt holes on the pad iron and the right-angle positioning plate to compress the pad iron and the right-angle positioning plate and tighten the pad iron, the right-angle positioning plate and the workbench. solid.

Among the effective functions that this positioning device can play:

For the precise positioning of the workpiece, the positioning surface used in this method is cut on-site on the wire cutting machine tool, and its orientation is exactly the same as the direction of the machine tool coordinate system, and there is no positioning error. High positioning accuracy.

In the inspection of the verticality of the adjacent positioning surfaces of the workpiece, there is a key part in this method - the right angle positioning plate, which can be used to test the verticality between adjacent surfaces, and the verticality of the processed reference surface can be checked during the positioning process. degree error.

The two worktables 2 in the figure are auxiliary equipment of the wire cutting machine tool. The distance between them is adjustable but the orientation is not guaranteed to be consistent with the coordinate system of the machine tool. They are all movable workbenches. In this method, one of the two worktables is to be fixed by tightening the hexagon socket head cap screws, and the workbench is fixed on the slide rail. The fixed position should be close to its limit position to ensure more space for clamping in the future. This fixed workbench is called workbench fixing in this example, and will remain unchanged for a long time after its position is fixed, and this workbench is used for connecting and fixing the locating device in this law. The other piece remains free to move, referred to in this Act as table movement.

After the table is fixed, it is ready to install the manufacturing positioning device. The positioning device mainly comprises parts such as a right-angle positioning plate 6, a pad iron 3, a supporting plate 4, and screws. The preparatory work mainly refers to the preparation of the blank of the right-angle positioning plate, the preparation of the pad iron, and the preparation of the supporting plate. The prefab work is detailed below:

1. Prefabrication of Cartesian Plate 6. The right-angle positioning plate can be a hexahedral steel plate in shape, its thickness should be about 15mm, and its plane size can be about 150mm in length and width; a number of screw holes 6 should be pre-processed on the steel plate for future use in fixing workpieces; prefabricated light holes 5 should also be processed. It is used to fix the right-angle positioning plate on the workbench. The position of the light hole should correspond to the position of the screw hole on the workbench. The upper and lower sides of the steel plate should be ground flat to ensure parallelism.

Prefabrication of 2 pallets 4. The pallet shall be prefabricated in the shape of a square, or in an "L" shape, and its size shall match that of the square positioning board. The top and bottom of the pallet should also be smoothed.

3 horns for prefabrication. The light hole 5 should be prefabricated on the pad iron, and the position of the screw hole should be consistent with the position of the light hole on the right-angle positioning plate, and correspond to the position of the screw hole on the workbench. The thickness of the pad iron should be greater than that of the supporting plate, so as to ensure that the bottom surface of the supporting plate is higher than the upper surface of the workbench after installation, so that no matter how the other workbench is moved, it will not interfere with the positioning device and will not hinder the other workbench of the mobile. The width of the shim should be smaller than the width of the workbench.

Once the preparations are complete, the installation can be implemented. Fasten the pad iron and the blank of the right-angle positioning plate on the fixed workbench with screws.

Use a wire cutting machine to cut into a right-angle shape along the direction of the coordinate axis. The two mutually perpendicular surfaces that are cut at right angles are the positioning surfaces of the present invention. Since the positioning surface is processed on-site by the machine tool, it must be completely consistent with the direction of the machine tool coordinate axis. This is the reason why this method can maintain the high accuracy of positioning.

The supporting plate 4 is bonded below the right-angle positioning plate 6 with a metal adhesive, and after the supporting plate and the right-angle positioning plate are bonded, a step is formed, and the square workpiece 7 is positioned on this step. The division of labor between the right-angle positioning plate and the supporting plate is different. The right-angled positioning plate is used for positioning, and the supporting plate is used for supporting the workpiece.

So far, the positioning device has been processed and installed, and can be used to install and position square workpieces. Once the positioning device is installed and manufactured, the workbench and positioning device for fixing the positioning device should be fixed in the original position and remain unchanged, and the screws must not be loosened, otherwise the positioning accuracy will be damaged.

When using the positioning device, the workpiece should be placed on the step formed by the right-angle positioning plate and the supporting plate, the reference plane of the workpiece and the positioning surface of the right-angle positioning plate fit together, and then the workpiece is pressed with the pressure plate and the screw.

The positioning method of the wire cutting positioning device should pay attention to the following points when implementing and using it:

1. Once the positioning device is manufactured, the workbench for fixing the positioning device should be fixed at the original position and remain unchanged, and the screws must not be loosened, otherwise the positioning accuracy will be damaged.

2. The thickness of the pad iron should be greater than that of the supporting plate, so that the position of the bottom surface of the supporting plate is higher than the upper surface of the workbench, so that no matter how the other workbench is moved, it will not interfere with the positioning device and will not hinder the other workbench of the mobile.

3. A number of screw holes should be opened on the right-angle positioning plate to cooperate with screws and pressure plates to compress the workpiece.

4. The positioning device is always in a cantilever state, and it is not suitable to bear large external force, hammering or heavy pressure.

5. This method is not suitable for positioning circular parts.

6. Although the structure of the positioning device used in this method is simple, it must be fabricated on-site by the wire cutting machine tool. The production must follow a fixed sequence, the sequence is as follows: select one of the two workbenches → fix the workbench → prefabricate the horn and grind the upper and lower parts 1. Drilling → Grinding the upper and lower sides of the prefabricated right-angle positioning plate, drilling → Grinding the upper and lower sides of the prefabricated supporting plate, and the processed shape is right-angled → Fasten the backing iron and the blank of the right-angled positioning plate with screws → Cut the right-angled shape on the blank → Put the supporting plate Bonded under the right-angle positioning plate.

The foregoing embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore: all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered by this utility model. within the scope of protection of utility models.

Claims (6)

1. line cutting and positioning device, it is characterized in that: comprise the right angle location-plate (1) for the location workpiece, the bottom surface of described right angle location-plate is provided with parallels (3) and the workpiece supporting plate (4) that is fixed on the wire electrode cutting bench (2), described supporting plate stretches out right angle location-plate angle one side and forms step with the right angle location-plate, described right angle location-plate is by being processed to form an angle of 90 degrees " L " type structure, and the both sides of right angle location-plate are respectively as transverse axis and the longitudinal axis for the workpiece location.

2. line cutting and positioning device according to claim 1, it is characterized in that: the top of described right angle location-plate, parallels, supporting plate, two sides, the end all are shiny surfaces that polishing forms, the bottom surface of described supporting plate end face and right angle location-plate adopts metal binding agent to be adhesively fixed, described parallels is provided with corresponding bolt via hole (5) with the right angle location-plate, and screw passes bolt via hole on parallels, the right angle location-plate with parallels and the right angle location-plate compresses and parallels, right angle location-plate and workbench is fastening.

3. line cutting and positioning device according to claim 1 is characterized in that: described supporting plate is similar to right angle location-plate shape with being " L " type, and the angle center line of supporting plate and right angle location-plate is located along the same line.

4. line cutting and positioning device according to claim 2, it is characterized in that: the thickness of described parallels leaves the gap greater than the thickness of supporting plate between described supporting plate and the workbench.

5. line cutting and positioning device according to claim 2, it is characterized in that: described right angle location-plate is that thickness is the steel plate of 10-15mm.

6. line cutting and positioning device according to claim 2, it is characterized in that: described right angle location-plate is provided with some screws (6) for attachment screw or pressing plate workpiece pressing.

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