Linear cutting machine tool clamp

Abstract

The utility model belongs to the technical field of electric spark cutting equipment, and particularly relates to a linear cutting machine tool clamp which comprises an installation base, a clamp body, a clamping device, a clamping device and a clamping device, and the installation base is provided with a strip-shaped fixing hole so that the installation base can be fixed to a linear cutting machine tool through bolts; the clamping part is arranged on the mounting base and is used for clamping a workpiece with a plurality of gaps; the processing liquid spraying part is provided with a plurality of nozzles which are arranged corresponding to the distribution direction of the plurality of gaps; wherein the machining liquid spraying part is arranged on the side of the clamping part, and compared with the prior art, the machining efficiency of cutting operation is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical discharge cutting equipment, and in particular relates to a wire cutting machine tool fixture. Background Technology

[0002] Electrical discharge wire cutting, sometimes also called wire cutting, works by using a continuously moving thin metal wire (called an electrode wire) as an electrode to perform pulsed spark discharge on the workpiece to remove metal and cut it into shape. For example, a wire discharge machining machine disclosed in patent application number CN201980095291.8 has: a wire electrode that discharges between itself and the workpiece to perform electrical discharge machining; a machining fluid nozzle that supplies machining fluid from a direction coaxial with the wire electrode to the gap between the wire electrode and the workpiece; and a machining fluid guide that has a clamping plate in which the workpiece is placed in the space between the clamping plates to guide the machining fluid in a way that prevents the machining fluid from being discharged from the space between the clamping plates. The surface of the clamping plate opposite to the workpiece is larger than the surface of the workpiece opposite to the clamping plate.

[0003] When using existing wire EDM machines, the spraying of the processing fluid cannot evenly cover the workpiece when dealing with complex shapes such as workpieces with multiple gaps. Furthermore, the immersion method is not suitable for large-sized workpieces, which greatly reduces processing efficiency. Therefore, it is necessary to make improvements. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a wire EDM machine tool fixture to effectively improve the processing efficiency of wire EDM.

[0005] In view of this, the present invention provides a wire EDM machine tool fixture, comprising:

[0006] The mounting base is provided with strip-shaped fixing holes for fixing the mounting base to the wire cutting machine tool by bolts;

[0007] Also includes:

[0008] A clamping part, which is disposed on a mounting base for clamping a workpiece having multiple gaps;

[0009] The processing fluid spraying unit has multiple nozzles arranged corresponding to multiple slit distribution directions;

[0010] The processing fluid spraying section is located on the side of the clamping section.

[0011] In this technical solution, when the wire EDM machine is cutting a workpiece with multiple slits, the workpiece is clamped and fixed on the clamping part, and the processing fluid is sprayed onto the surface of the workpiece through the nozzles on the processing fluid spraying part. By arranging multiple nozzles corresponding to the distribution direction of multiple slits, the processing fluid is effectively and evenly sprayed onto the workpiece and covers each slit of the workpiece, which effectively improves the processing efficiency of the cutting operation.

[0012] In the above technical solution, the processing fluid spraying unit further includes:

[0013] A fitting groove is provided on one side surface of the processing fluid spraying part and can fit into the side of the clamping part;

[0014] A flow channel is disposed inside the processing fluid spraying section;

[0015] The flow channel can deliver processing fluid to multiple nozzles.

[0016] In the above technical solution, the diameters of the plurality of nozzles are further varied in a gradual manner to maintain uniform spray pressure.

[0017] In the above technical solution, the diameter of the nozzle gradually increases along the direction away from the flow channel.

[0018] In the above technical solution, the nozzle further includes:

[0019] A flow guide is disposed inside the nozzle and the diameter of the flow guide is smaller than the diameter of the nozzle. The diameter of the flow guide gradually increases in the direction away from the flow channel.

[0020] In the above technical solution, the flow guide has a plurality of concentrically distributed components with successively decreasing diameters.

[0021] The beneficial effects of this utility model are:

[0022] 1. By arranging multiple nozzles on the processing fluid spraying unit to correspond to multiple gap distribution directions, the processing fluid is effectively sprayed evenly onto the workpiece and covers all gaps of the workpiece, which effectively improves the processing efficiency of the cutting operation.

[0023] 2. By gradually changing the diameter of multiple nozzles, the fluid pressure damage in the flow channel is offset, the injection pressure of multiple nozzles is suppressed, and the processing fluid can be further guaranteed to cover all gaps in the workpiece.

[0024] 3. By varying the nozzle diameter and designing the flow guide, the processing fluid can be evenly distributed and fill the internal space of the nozzle during spraying, thus ensuring that the nozzle can spray the processing fluid evenly. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0027] Figure 2 This is an exploded view of the structure of this utility model.

[0028] Figure 3 This is a schematic diagram of the flow channel structure of this utility model.

[0029] Figure 4 This is a schematic cross-sectional view of the nozzle structure of this utility model.

[0030] Figure 5 This is a schematic diagram of the nozzle structure of this utility model.

[0031] The markings in the diagram are as follows:

[0032] 1. Mounting base; 2. Strip-shaped fixing hole; 3. Clamping part; 30. Clamping groove; 4. Workpiece; 5. Processing fluid spraying part; 50. Nozzle; 500. Flow guide; 51. Fitting groove; 52. Flow channel; 53. Processing fluid inlet. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0035] Example 1:

[0036] This application provides a wire EDM machine tool fixture, including: a mounting base 1, on which a strip fixing hole 2 is provided to fix the mounting base 1 to the wire EDM machine tool by bolts;

[0037] It also includes: a clamping part 3, which is disposed on the mounting base 1 for clamping a workpiece 4 with multiple gaps; and a processing fluid spraying part 5, which has multiple nozzles 50 arranged corresponding to the distribution direction of the multiple gaps.

[0038] The processing fluid spraying section 5 is located on the side of the clamping section 3.

[0039] The processing fluid spraying section 5 also includes: a fitting groove 51, which is provided on one side surface of the processing fluid spraying section 5 and can fit into the side of the clamping section 3; and a flow channel 52, which is provided inside the processing fluid spraying section 5.

[0040] The flow channel 52 can deliver processing fluid to multiple nozzles 50.

[0041] Furthermore, the clamping part 3 is preferably integrally formed with the mounting base 1. The clamping part 3 is a block that extends vertically upward from the mounting base 1. The front surface of the clamping part 3 is provided with clamping grooves 30 that are also vertically distributed. The clamping grooves 30 can clamp workpieces 4 with multiple gaps in a conventional way. For example, the side wall of the clamping part 3 is provided with a hole that extends through to the clamping groove 30. This hole can be a threaded hole, and a screw is threadedly connected to the hole. One end of the screw that enters the clamping groove 30 can be movably mounted with a pressure plate. By rotating the screw, the pressure plate is pressed against the workpiece 4 to clamp the workpiece 4 in the clamping groove 30. In addition, the clamping groove 30 can also clamp the workpiece 4 in a conventional automatic control way, such as by driving the clamping with a hydraulic cylinder or a pneumatic cylinder. The processing fluid spraying part 5 is connected to a conventional processing fluid storage device and a power source for conveying.

[0042] Furthermore, the fitting groove 51 is also distributed vertically, and the length of the fitting groove 51 matches the width of the clamping part 3. The side wall of the processing fluid spraying part 5 has a slot that extends through the fitting groove 51, and the side wall of the clamping part 3 has a screw hole corresponding to the position of the slot. After the fitting groove 51 is fitted with the clamping part 3 on the side, it can be fixed on the clamping part 3 by bolts passing through the slot and engaging with the screw hole. The flow is also distributed vertically. The side wall of the processing fluid spraying part 5 has a processing fluid inlet 53 that communicates with the flow channel 52. The side wall of the processing fluid spraying part 5 facing the workpiece 4 has a hole that communicates with the flow channel 52. The nozzle 50 can be sealed to this hole in a conventional way, such as by thread.

[0043] In this embodiment, when the wire EDM machine is cutting a workpiece 4 with multiple slits, the workpiece 4 is clamped and fixed on the clamping part 3. The processing fluid is sprayed onto the surface of the workpiece 4 through the nozzles 50 on the processing fluid spraying part 5. By arranging multiple nozzles 50 corresponding to multiple slit distribution directions, the processing fluid is effectively and evenly sprayed onto the workpiece 4 and covers each slit of the workpiece 4, which effectively improves the processing efficiency of the cutting operation.

[0044] Example 2:

[0045] This embodiment provides a wire EDM machine tool fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the diameters of the multiple nozzles 50 vary gradually to maintain uniform spray pressure.

[0046] Furthermore, the diameter of the multiple nozzles 50 gradually changes from the bottom to the top of the flow channel 52 (e.g., gradually decreases), thereby offsetting the fluid pressure loss.

[0047] In this embodiment, by gradually varying the diameter of multiple nozzles 50, the pressure and velocity changes of the fluid passing through the flow channels 52 with different apertures are used to offset the fluid pressure loss in the flow channels 52, thereby maintaining a consistent spray pressure of multiple nozzles 50. This further ensures that the processing fluid can be evenly sprayed onto the workpiece 4 and cover all the gaps in the workpiece 4, effectively improving the processing efficiency of the cutting operation.

[0048] Example 3:

[0049] This embodiment provides a wire EDM machine tool fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the diameter of the nozzle 50 gradually increases along the direction away from the flow channel 52.

[0050] The nozzle 50 also includes a flow guide 500, which is disposed inside the nozzle 50 and has a diameter smaller than that of the nozzle 50. The diameter of the flow guide 500 gradually increases in the direction away from the flow channel 52.

[0051] The fairing 500 has several concentrically distributed fairings with decreasing diameters.

[0052] Furthermore, the deflector 500 can be fixed in the nozzle 50 in a conventional manner.

[0053] In this embodiment, by gradually increasing the diameter of the nozzle 50 in the direction away from the flow channel 52, the spraying range of the processing fluid can be improved. At the same time, by utilizing the arrangement of the flow guide 500, the processing fluid can be divided into several streams by the flow guide 500 when it flows in the small diameter section of the nozzle 50, so that the processing fluid can be evenly distributed in the nozzle 50. Finally, when the processing fluid enters the large diameter section of the nozzle 50, it can be evenly sprayed out of the nozzle 50.

[0054] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A wire EDM machine tool fixture, comprising: Mounting base (1), the mounting base (1) is provided with strip-shaped fixing holes (2) to fix the mounting base (1) on the wire cutting machine tool by bolts; Its characteristic is that it further includes: Clamping part (3), which is disposed on mounting base (1) for clamping workpiece (4) with multiple gaps; The processing fluid spraying unit (5) has multiple nozzles (50) arranged corresponding to the distribution direction of multiple gaps; The processing fluid spraying part (5) is located on the side of the clamping part (3).

2. A wire EDM machine tool fixture according to claim 1, characterized in that, The processing fluid spraying unit (5) also includes: Fitting groove (51), the fitting groove (51) is provided on one side surface of the processing fluid spraying part (5) and can fit into the side of the clamping part (3); The flow channel (52) is disposed inside the processing fluid spraying section (5); The flow channel (52) can deliver processing fluid to multiple nozzles (50).

3. A wire EDM machine tool fixture according to claim 2, characterized in that: The diameters of the plurality of nozzles (50) vary gradually to maintain uniform injection pressure.

4. A wire EDM machine tool fixture according to claim 3, characterized in that: The diameter of the nozzle (50) gradually increases in the direction away from the flow channel (52).

5. A wire EDM machine tool fixture according to claim 4, characterized in that, The nozzle (50) also includes: A flow guide (500) is disposed inside the nozzle (50) and the diameter of the flow guide (500) is smaller than the diameter of the nozzle (50). The diameter of the flow guide (500) gradually increases in the direction away from the flow channel (52).

6. A wire EDM machine tool fixture according to claim 5, characterized in that: The flow deflector (500) has several concentrically distributed components with decreasing diameters.

Images