CN203649592U - Workpiece clamping device of wire cutting machine tool - Google Patents

Abstract

The utility model provides a workpiece clamping device on a wire cutting machine tool, which belongs to the technical field of machinery. It solves the technical problems of complex structure and low reliability of the workpiece clamping device on the existing wire cutting machine tool. A workpiece clamping device on a wire cutting machine tool. The wire cutting machine tool includes two positioning beams arranged in parallel. Several mounting holes with internal threads are opened on the positioning beams. The clamping device includes several positioning bolts. The upper and lower ends of the upper and lower ends respectively have an external thread one and an external thread two, a nut that matches the external thread one is set on the positioning bolt, and the external thread two cooperates with the internal thread of the mounting hole, and a piece located on the external thread is set on the positioning bolt The splint between the first and the external thread two, the splint can be pressed against the workpiece. The utility model has the advantages of simple structure, high reliability and the like.

Description

A workpiece clamping device on a wire cutting machine tool

technical field

The utility model belongs to the technical field of machinery and relates to a clamping device for a workpiece on a wire cutting machine.

Background technique

The wire cutting machine is mainly composed of three parts: machine tool, numerical control system and high frequency power supply. The numerical control system is composed of a single-chip microcomputer, a keyboard, and a frequency conversion detection system. It has the main functions of gap compensation, linear interpolation, circular interpolation, and automatic processing of broken wires. It can cut materials, such as high-strength, high-toughness, high-hardness, high-brittleness, magnetic materials, and precision small and complex-shaped parts; wire-cutting technology and wire-cutting machine tools are being widely used in various industries.

The existing wire cutting machine fixing device generally only has two fixing beams, the structure is simple, and the clamping method is single, so that some workpieces cannot be fixed during cutting. If there is a short circuit or wire clamping during the cutting process, the molybdenum wire needs to be adjusted. At this time, the position of the workpiece will change so that the molybdenum wire cannot continue to cut in the original cutting direction of the sample, which brings a lot of trouble to the cutting work and affects the work efficiency and cutting accuracy.

In the patent (CN101704255A), a wire cutting fixture is disclosed, which includes a base and a pressing plate arranged on the top of the base. The pressing plate is locked on the base by adjusting screws. The corresponding transverse notch, the base and the notch of the pressure plate are combined to form a clamping groove for clamping the workpiece. When in use, adjust the distance between the pressure plate and the base by adjusting the screw, thereby adjusting the width of the clamping groove. The groove can be adjusted for workpieces of different thicknesses. Place the workpiece in the clamping groove, tighten the adjusting screw to clamp the workpiece, and complete the clamping process. The work is clamped in the clamping groove of this elongated structure, which can prevent more Thin and long workpieces are deformed during processing, and the operation is convenient. It can be processed in batches, saves calibration time, and improves work efficiency. However, this fixture has disadvantages such as difficulty in disassembling and assembling the workpiece, and being limited by the size and shape of the workpiece.

Contents of the invention

The purpose of this utility model is to provide a workpiece clamping device on a wire cutting machine tool for the above-mentioned problems in the existing technology. The technical problem to be solved by this utility model is how to clamp the workpiece simply and reliably.

The purpose of the utility model can be achieved through the following technical solutions: a workpiece clamping device on a wire cutting machine tool, the wire cutting machine tool includes two positioning beams arranged in parallel, and it is characterized in that there are several positioning beams on the positioning beam. A mounting hole with an internal thread, the clamping device includes several positioning bolts, the upper and lower ends of the positioning bolts respectively have external threads I and external threads two, and the positioning bolts are sleeved with a Thread 1 fits the nut, the external thread 2 cooperates with the internal thread of the mounting hole, and the positioning bolt is provided with a splint between the external thread 1 and the external thread 2, and the splint can against the workpiece.

The working principle of the utility model is: place the workpiece on the two positioning beams on the online cutting machine tool, tighten the positioning bolts so that the positioning bolts are fixed on the positioning beams, tighten the nuts, and push the splint set on the positioning bolts under the Move and make the splint lean against the workpiece, so as to realize the clamping of the workpiece and prevent the workpiece from moving on the positioning beam. Since this clamping device uses the abutment of the splint to achieve clamping, it is not affected by the shape and size of the workpiece. Restrictions; several positioning bolts are arranged on the positioning beam, which can fix different positions of the workpiece on the positioning beam in a balanced manner.

In the above-mentioned workpiece clamping device on a wire cutting machine tool, the two positioning beams have a stepped surface respectively, and the workpiece is pressed against the two stepped surfaces and clamped between the two positioning beams. between. When the processing head cuts the workpiece in the wire cutting machine, the workpiece is subjected to a large external force of the processing head, and the workpiece is clamped between two positioning beams, which can prevent the workpiece from moving in the horizontal plane.

In the above-mentioned workpiece clamping device on a wire cutting machine tool, the clamping plate includes a pressure plate and a top plate perpendicular to each other, the pressure plate is passed through the positioning bolt, and the The top plate can abut against said workpiece.

In the above workpiece clamping device on a wire cutting machine tool, a balance plate is fixedly arranged on the pressing plate, and the balance plate can abut against the upper end of the positioning beam. The mutually perpendicular top plate and pressing plate will be tilted to a certain extent after being subjected to the force of the workpiece, which will loosen the workpiece. The pressing plate between the top plates is in a horizontal position, and the nuts can tightly lean against the pressing plate.

In the above-mentioned workpiece clamping device on a wire cutting machine tool, the balance plate is wedge-shaped. The balance plate is wedge-shaped, and its small end faces down to abut against the positioning beam, and the contact area is small, which can ensure a stable abutment.

Compared with the prior art, the utility model has the following advantages:

1. The vertical top plate and pressing plate will be tilted to a certain extent after receiving the force of the workpiece, which will loosen the workpiece. After the balance plate is installed, the balance plate and the top plate will respectively lean against the positioning beam and the workpiece, and they will be in a balanced position. The pressing plate between the plate and the top plate is in a horizontal position, and the nuts can tightly lean against the pressing plate.

2. The balance plate is wedge-shaped, and its small end faces down to abut against the positioning beam. The contact area is small, which can ensure a stable abutment.

Description of drawings

Fig. 1 is a structural schematic diagram of the clamping device when no workpiece is installed.

Fig. 2 is an enlarged view of part A in Fig. 1,

Fig. 3 is a structural schematic diagram of the clamping device after the workpiece is installed.

FIG. 4 is an enlarged view of part B in FIG. 3 .

Fig. 5 is a structural schematic diagram of the splint in the clamping device.

In the figure, 1, positioning beam; 2, mounting hole; 3, positioning bolt; 4, workpiece; 51, external thread one; 52, external thread two; 6, nut; 7, splint; 71, top plate; 72, pressing Board; 73, balance board; 8, step surface.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a workpiece clamping device on a wire cutting machine tool, the wire cutting machine tool includes two positioning beams 1 arranged in parallel, on the positioning beam 1 there are several Threaded mounting holes 2, the clamping device includes a number of positioning bolts 3, the upper and lower ends of the positioning bolts 3 have external thread one 51 and external thread two 52 respectively, and the positioning bolt 3 is provided with a set that cooperates with the external thread one 51 The nut 6, the external thread 2 52 cooperates with the internal thread of the mounting hole 2, and the positioning bolt 3 is provided with a splint 7 between the external thread 1 51 and the external thread 2 52, and the splint 7 can be against the workpiece 4 , the two positioning beams 1 have a stepped surface 8 respectively, the workpiece 4 leans against the two stepped surfaces 8 and is sandwiched between the two positioning beams 1, when the processing head in the wire cutting machine tool cuts the workpiece 4, the workpiece 4. Under the large external force of the processing head, the workpiece 4 is clamped between the two positioning beams 1, which can prevent the workpiece 4 from moving in the horizontal plane.

As shown in Fig. 2, Fig. 3 and Fig. 5, the splint 7 includes a mutually perpendicular pressing plate 72 and a top plate 71, the pressing plate 72 is mounted on the positioning bolt 3, and the top plate 71 can be abutted against the workpiece 4 for pressing A balance plate 73 is fixedly arranged on the plate 72, and the balance plate 73 can abut against the upper end of the positioning beam 1, and the top plate 71 and the pressing plate 72, which are perpendicular to each other, will be inclined to a certain extent after being subjected to the force of the workpiece 4, so that the workpiece 4 is loose, after the balance plate 73 is set, the balance plate 73 and the top plate 71 are respectively against the positioning beam 1 and the workpiece 4, and the pressing plate 72 between the balance plate 73 and the top plate 71 is in a horizontal position, and the nut 6 can be tightened Tightly lean against on the pressing plate 72, the balance plate 73 is wedge-shaped, and the balance plate 73 is wedge-shaped, and its small end faces down to abut against the positioning beam 1, and the contact area is less, which can ensure stable abutment.

The working principle of the utility model is: place the workpiece 4 on the two positioning beams 1 on the online cutting machine tool, tighten the positioning bolts 3 so that the positioning bolts 3 are fixed on the positioning beams 1, tighten the nuts 6, and push the sleeves on the The splint 7 on the positioning bolt 3 moves down and makes the splint 7 lean against the workpiece 4, thereby realizing the clamping of the workpiece 4 and preventing the workpiece 4 from moving on the positioning beam 1. Since the clamping device uses the splint 7 Clamping is achieved by abutting against the workpiece 4, which is not limited by the shape and size of the workpiece 4; several positioning bolts 3 are arranged on the positioning beam 1, which can fix the different positions of the workpiece 4 on the positioning beam 1 in a balanced manner.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (5)

1. A workpiece clamping device on a wire-cutting machine tool. The wire-cutting machine tool includes two positioning beams (1) arranged in parallel. It is characterized in that, the positioning beams (1) are provided with several Mounting holes (2), the clamping device includes several positioning bolts (3), the upper and lower ends of the positioning bolts (3) respectively have external thread one (51) and external thread two (52), the positioning The bolt (3) is sleeved with a nut (6) that cooperates with the first external thread (51), and the second external thread (52) cooperates with the internal thread of the mounting hole (2). A splint (7) located between the first external thread (51) and the second external thread (52) is sheathed on the positioning bolt (3), and the splint (7) can lean against the workpiece (4). 2. A workpiece clamping device on a wire cutting machine tool according to claim 1, characterized in that, the two positioning beams (1) have a stepped surface (8) respectively, and the workpiece ( 4) It leans against two step surfaces (8) and is sandwiched between two positioning beams (1). 3. A workpiece clamping device on a wire-cutting machine tool according to claim 1 or 2, characterized in that, the clamping plate (7) includes a pressing plate (72) and a top plate (71) perpendicular to each other, The pressing plate (72) is passed through the positioning bolt (3), and the top plate (71) can abut against the workpiece (4). 4. A workpiece clamping device on a wire cutting machine tool according to claim 3, characterized in that a balance plate (73) is fixedly arranged on the pressing plate (72), and the balance plate (73) can abut against the upper end of the positioning beam (1). 5. A workpiece clamping device on a wire cutting machine tool according to claim 4, characterized in that, the balance plate (73) is wedge-shaped.

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