TWM444236U - Electric discharge machine with movable post - Google Patents

Description

Moving column electric discharge machine

The present invention relates to an electric discharge machine, in particular to a technical field in which a spindle having a Z-axis direction can be manually adjusted with respect to a workpiece having an X-Y plane, thereby electrically discharging an inclined wall surface.

The technique of removing material by electric discharge machining is to place the electrode on the workpiece and the processing head into an electrolytic bath containing an insulating working fluid, and supply appropriate electric energy to the workpiece and the electrode, and reduce the distance between the electrode and the workpiece. When the energy of the electrode is enough to break the dielectric value of the insulating liquid between the two, the discharge column can be formed by ionization between the workpiece and the electrode, and the high-density energy in the discharge column can generate high heat to evaporate and melt the workpiece and the electrode. At the same time, the insulating liquid is vaporized by high heat, and the partial explosion pressure caused by gasification can remove the molten workpiece and the electrode from the processed surface, so that the surface of the workpiece can be removed and processed. Especially in the technical fields of mold manufacturing, machining, etc., the electric discharge machine is a widely used processing machine, especially in the field of processing such as super hard materials or complex shape workpieces which are difficult to be machined by conventional machining, and the electric discharge machine is commonly used for processing. Machine tools.

Generally, the main shaft of the electric discharge machine constitutes a Z-axis, which is usually fixed and perpendicular to an electrolytic cell composed of an XY plane, and generally the electric discharge machine is a conductive tool electrode driven by a controlled three-axis driving mechanism. And applying a periodic and rapidly changing voltage pulse to the workpiece by the insulating medium, thereby releasing energy to generate a local high temperature to etch the surface metal of the predetermined portion of the workpiece until the workpiece shape processing program is completed. Please refer to The general-purpose electric discharge machine shown in Fig. 6 is a conventional structure 9 in which the main shaft 91 and the electrode 92 are fixed, so that a tool having a complicated shape cannot be processed, for example, general practice It is known that the electric discharge machine can only machine the vertical surface 81 of the groove 8 and cannot machine an inclined wall surface as shown in Fig. 7. It is also known that the electrolytic cell 93 of the structure 9 is prone to high temperature due to excessive discharge of the electrode 92 in the event of a sudden installation, and the conventional structure 9 does not have any protective measures and is liable to cause a fire.

Therefore, the main purpose of this creation is to provide a manual type and economical type of moving rod electric discharge machine. The secondary purpose of this creation is to provide a moving column EDM with better processing performance. Another object of the present invention is to provide a moving column electric discharge machine with better safety.

In order to carry out the above-mentioned purposes, the creator created a moving-column electric discharge machine with the long-term research and conception of the electric discharge machine, which includes: 1. A moving column electric discharge machine, which includes: a base, the base is provided with an X-axis slide, and an electrolysis cell is arranged in front of the X-axis slide, and a workpiece platform is arranged in the electrolytic cell; a Y-axis slide, the Y-axis slide is arranged Above the X-axis slide and vertically intersecting, a front end of the Y-axis slide is provided with a rotating seat; and a main shaft, the lower end of the main shaft is provided with an electrode, and the main shaft is provided with a Z-axis slide The rear of the main shaft is fixed on the rotating base, so that the main shaft rotates angularly with respect to the electrolytic cell; a workpiece is fixed by the workpiece platform, and then the main shaft is angularly rotated relative to the workpiece to make the main shaft The electrode is inclined to the workpiece, and an oblique wall is formed by discharging the workpiece.

The above rotating seat is located at 1/5L to 1/2L of the total length (L) of the spindle from the end of the spindle electrode, so that the Z-axis slide on the spindle is more flexible. The space is to increase the maximum range of the Z-axis depth of the workpiece that can be machined by EDM, and the depth also includes the maximum depth of the Z-axis depth of the inclined wall surface.

The rotating base further includes a set of worms, a worm wheel, a rotating platform and at least one fixing device, and one end of the worm of the rotating base is provided with a hand wheel, and is exposed to the rotating seat, and the manual of the operation technician is utilized. operating.

The fixing device further includes a pressing block and an elastic rod, and the elastic rod is L-shaped and the front end of the rod body is provided with an external thread, respectively, which passes through the perforation provided by the pressing block, and finally combines The rotating seat is provided with a female threaded hole of the lug, and the pressing block is pressed against the flange provided by the rotating platform.

The above-mentioned hand wheel is disposed on one side facing the electric discharge machine to conform to the operating habits of the operating technician, and the outer circumference of the hand wheel and the rotating platform flange is provided with a scribing scale.

The bottom end of the rotating base is fixed to the front end of the Y-axis slide, and the rotating platform of the rotating base is fixed to the rear end of the main shaft.

The maximum rotation angle of the above-mentioned spindle is 45 degrees to increase the maximum range of the inclination angle of the machineable inclined wall surface.

The above-mentioned moving column electric discharge machine further includes a connecting plate, wherein the connecting plate is disposed between the rotating base and the main shaft, and the connecting plate has a function of facilitating assembly of the main shaft to the rotating base.

As can be seen from the above description, this creation can achieve the following effects compared to the prior art:

1. The main purpose of this creation is to provide a rotating seat between the Y-axis slide and the main shaft. The rotating base is mainly composed of a set of worm, worm gear and a rotating platform, and the worm has a hand crank at one end. Round to facilitate manual adjustment Rotate the seat to rotate its spindle relative to the electrolytic cell for construction of more complex workpieces. Moreover, the structure of the rotating base is simple, and the dynamic column type electric discharge machine of the present invention can greatly reduce the cost price thereof as a whole.

2. The rotating seat of the creation is set at one-third of the total length of the main shaft, and the inclination angle of the main shaft can be adjusted to be 45°, and the electric discharge can be processed more and deeper. Oblique wall.

3. The fire extinguisher of each side of the main shaft of the present invention is provided with a fire extinguisher, and the fire extinguisher has a temperature of sensing the ambient temperature. If the electrode is abnormally discharged during the process of electrical discharge, the electrolytic cell generates a high temperature, and if the preset temperature is reached, the temperature will be touched. The fire extinguisher sprays out the fire extinguishing agent to prevent the fire in the electrolytic cell from happening in advance.

In order to further illustrate the above-mentioned purposes, the technical means used, and the achievable effects of the present invention, the present author will describe the preferred embodiment as follows: First, please refer to the figures 1, 2, and 3, which are The invention relates to a moving column electric discharge machine, which comprises: a base 1, an X-axis slide 11, a Y-axis slide 2, a rotary base 3 and a main shaft 4; wherein the electrolysis of the base 1 The rear end of the pool 12 is provided with an X-axis slide 11 which is slightly shorter than the length of the electrolytic cell 12, and the electrolytic cell 12 disposed in front of the X-axis slide 11 is mainly composed of The four wall plates 121 are surrounded by the four sides of the processing platform 10 to form a trough shape to accommodate the electrolyte 122. And a processing platform 10 is further provided with a workpiece platform 13 for fixing the workpiece 5; the Y-axis sliding seat 2 is placed above the X-axis sliding seat 11 and with the X-axis sliding seat 11 is perpendicularly crossed, basically, the length of the Y-axis slide 2 is the same as that of the X-axis slide 11, and the rotating seat 3 is provided at the front end of the Y-axis slide 2; The rotating base 3 is fixed between the Y-axis slide 2 and the main shaft 4, that is, the rear end of the rotating base 3 is connected to the front end of the Y-axis slide 2 by a plurality of bolts, and the rotating platform 34 of the rotating base 3 is provided. Then, the connecting plate 43 at the rear end of the main shaft 4 is fixed by a plurality of screws, as shown in FIGS. 2 and 3. As shown in FIG. 3a, the rotating base 3 is mainly composed of a body worm 32, a worm wheel 31, a rotating platform 34 and two fixing devices 35. The worm wheel 31 has a center. The bearing is inserted into the shaft of the body 30, and the worm 32 extends through at least two bearings and is placed under the worm wheel 31, and each of the rotating shafts crosses perpendicularly with each other, and one end of the worm 32 is extended and exposed. Outside the body 30, a hand wheel 33 is then mounted on the end, such that the hand wheel 33 is located on one side facing the electric discharge machine (preferably disposed on the left side facing the electric discharge machine). In order to meet the operating habits of the operating technicians. In particular, the fixing device 35 further includes a pressing block 351 and an elastic rod 352. The elastic rod 352 is L-shaped and the front end of the rod body is provided with an external thread, which passes through the pressing block 351 respectively. The through hole is finally coupled to the internally threaded hole of a lug 301 provided in the body 30, and the pressing block 351 is pressed against the flange 342 provided on the rotating platform 34. When the operator shakes the hand wheel 33, and then rotates the worm 32, and then drives the worm wheel 31 to rotate, the worm wheel 31 re-links the rotating platform 34, and finally links the connecting plate 43 at the rear end of the spindle 4, thereby rotating the spindle 4. At one angle, finally, the rotating platform 34 is fixed by the two fixing devices 35 to complete the adjustment of the angle of the main shaft 4; and the hand wheel 33 and the rotating platform 34 are respectively provided with line drawing scales 331, 341 to facilitate the operation technology. The person rotates the spindle 4 angularly with respect to the electrolytic cell 12; in particular, the rotating seat is located at 1/5 L to 1/2 L of the total length (L) of the spindle from the end of the spindle electrode, so that The Z-axis slide 42 on the main shaft 4 has a large expansion and contraction space to enhance the electric discharge machining process The maximum range of the Z axial depth, the depth also includes the maximum depth of the Z axial depth of the inclined wall surface; and the main shaft 4, one end of the main shaft 4 is provided with an electrode 41, and the main shaft 4 is provided with a Z-axis slide 42. The Z-axis slide 42 is further fixed to the rotating platform 34 of the rotating base 3 by an intermediate plate 43 and a plurality of bolts. The main function of the Z-axis sliding seat 42 is to make the electrode 41 Infeed or retraction relative to the workpiece 5; in general, the maximum rotation angle of the main shaft 4 by the rotating base 3 is 45 degrees to increase the maximum range of the inclination angle of the machinable inclined wall surface, as shown in FIG. By.

The workpiece 5 is fixed by the workpiece platform 13 provided on the processing platform 10 of the susceptor 1. Usually, the electrolytic cell 12 is filled with about eight to nine minutes of the electrolyte 122, and the workpiece 5 is immersed in the electrolyte 122. When the spindle 4 has not been processed, it is located above the electrolytic cell 12. Generally, the inside of the X-axis slide 11, the Y-axis slide 2, and the Z-axis slide 42 are all provided with a ball screw, a servo motor, an optical ruler, and the servo motor, the optical ruler and the computer controller 6 are electrically operated. The connection, and thus the number of revolutions of the ball screw, so that the X-axis slide 11 defines the X coordinate of the main shaft 4, so that the Y-axis slide 2 defines the Y coordinate of the main shaft 4, so that the Z-axis slide 42 The Z coordinate of the spindle 4 is determined. In other words, the computer controller 6 inputs the program and the moving coordinates of the X, Y, and Z of the spindle 4, and then controls the X, Y, and Z feed amounts of the spindle 4 via the computer controller 6, thereby discharging the workpiece 5. The shape you need.

Referring to FIG. 5, if an inclined wall 51 is to be machined to the workpiece 5, the operator observes the angle θ at which the inclined wall 51 is inclined, and the operator operates the hand wheel 33 of the rotating base 3, and generally operates one side. Looking at the scale of the rotating base 3, the main shaft 4 is rotated at an angle θ with respect to the electrolytic cell 12, and then the Z-axis slide 42 of the main shaft 4 repeats the deep processing of the workpiece 5 in an oblique Z direction. The inclined wall 51 is machined.

Further, a fire extinguisher 44 is disposed on each of the two sides of the bottom end of the main shaft 4, and the fire extinguisher 44 has a temperature for sensing the ambient temperature. If the electrode 41 is abnormally discharged during the electrical discharge process, the electrolytic cell 12 generates a high temperature, and if the preset temperature is reached, The fire extinguisher 44 is activated to spray out the fire extinguishing agent to prevent the fire of the electrolytic cell 12 from occurring in advance to improve the safety performance of the electric discharge machine of the present invention.

According to the above embodiments, the present invention relates to a moving column type electric discharge machine, which is provided with a rotating seat between a Y-axis sliding seat and a main shaft, and the rotating base is mainly composed of a group of worms and worm wheels. Allow the operator to manually adjust the angle of rotation of the spindle relative to the cell to allow for the construction of inclined walls for more complex workpieces. Moreover, the composition of the rotating base is simple, and the dynamic column type electric discharge machine of the present invention can greatly reduce the price thereof, and the structure and the achieved effect have not been seen in the publication or public use, and the new patent application requirements are met. I would like to ask the Bureau to explain the patent, to grant the patent as soon as possible, to pray for it; to be clear, the above is the technical principle immediately applied in the specific implementation of this creation, if it is changed according to the concept of this creation, it will be produced The function of the function is still beyond the scope of the manual and the drawings, and should be combined with Chen Ming within the scope of this creation.

[This creation]

1‧‧‧Base

10‧‧‧Processing platform

11‧‧‧X-axis slide

12‧‧‧ Electrolytic cell

121‧‧‧ siding

122‧‧‧ electrolyte

13‧‧‧Workpiece platform

2‧‧‧Y-axis slide

3‧‧‧ rotating seat

30‧‧‧Ontology

301‧‧‧ lugs

31‧‧‧ worm gear

32‧‧‧ worm

33‧‧‧Hand wheel

331‧‧‧Drawing line scale

34‧‧‧Rotating platform

341‧‧‧Drawing line scale

342‧‧‧Flange

35‧‧‧Fixed devices

351‧‧‧Pressure block

352‧‧‧Elastic rod

4‧‧‧ Spindle

41‧‧‧Electrode

42‧‧‧Z-axis slide

43‧‧‧Connecting plate

44‧‧‧Fire extinguisher

5‧‧‧Workpiece

51‧‧‧ slanted wall

6‧‧‧Computer controller

Θ‧‧‧ angle

L‧‧‧ Chief

[知知]

8‧‧‧ slots

81‧‧‧Vertical

9‧‧‧Learning structure

91‧‧‧ Spindle

92‧‧‧ electrodes

93‧‧‧ Electrolytic cell

Fig. 1 is a perspective view showing a preferred embodiment of the present invention.

Figure 2 is a side plan view of a preferred embodiment of the present invention.

Figure 3: This is an exploded view of the rotating disk, spindle and connecting plate.

Figure 3a: A schematic diagram of the decomposition of the rotating disk structure of the present creation.

Figure 4: This is the main axis of the creation, the maximum angle manually adjusted by the rotating disk Schematic diagram of the range of degrees.

Fig. 5 is a schematic view showing the electric discharge machining of the preferred embodiment of the present invention.

Figure 6 is a perspective view of a conventional EDM machine.

Fig. 7 is a schematic view showing electrical discharge machining of a conventional electric discharge machine.

1‧‧‧Base

11‧‧‧X-axis slide

12‧‧‧ Electrolytic cell

121‧‧‧ siding

122‧‧‧ electrolyte

2‧‧‧Y-axis slide

3‧‧‧ rotating seat

33‧‧‧Hand wheel

34‧‧‧Rotating platform

35‧‧‧Fixed devices

4‧‧‧ Spindle

41‧‧‧Electrode

42‧‧‧Z-axis slide

43‧‧‧Connecting plate

44‧‧‧Fire extinguisher

6‧‧‧Computer controller

Claims (8)

A moving column type electric discharge machine comprises: a base, an kiln sliding seat is arranged on the pedestal, an electrolytic cell is arranged in front of the X-axis sliding seat, and a workpiece platform is arranged in the electrolytic cell; a Y-axis slide seat, the Y-axis slide seat is placed above the X-axis slide and vertically intersected, and a rotating seat is arranged on the front end of the Y-axis slide; and a spindle, the lower end of the spindle is provided There is an electrode, and the main shaft is provided with a Z-axis slide, and the rear of the main shaft is fixed on the rotary base, so that the main shaft rotates angularly with respect to the electrolytic cell; a workpiece is fixed by the workpiece platform, and then The main shaft is angularly rotated with respect to the workpiece, so that the electrode of the main shaft makes a diagonal feed to the workpiece, and an oblique wall surface is electrically discharged to the workpiece. The moving-column electric discharge machine according to claim 1, wherein the rotating seat is located at 1/5L to 1/2L of the total length (L) of the main shaft from the end of the main shaft, so that the Z on the main shaft The shaft slide has a more flexible space to increase the maximum range of the Z-axis depth of the workpiece that can be machined by the electric discharge machining, and the depth also includes the maximum depth of the Z-axis depth of the inclined wall surface. The moving-column electric discharge machine according to claim 1, wherein the rotating base further comprises a set of worms, a worm wheel, a rotating platform and at least one fixing device, and one end of the worm of the rotating base is provided with a hand wheel And exposed to the rotating seat, the manual operation of the technician. The movable-column electric discharge machine according to claim 3, wherein the fixing device further comprises a pressing block and an elastic rod, and the elastic rod is L-shaped and the front end of the rod body is provided with an external thread. It passes through the perforations provided in the pressing block, and is finally coupled into the internally threaded hole of a lug provided in the rotating base, and the pressing block is pressed against the flange provided by the rotating platform. According to the movable column type electric discharge machine of claim 4, wherein the hand wheel is disposed on one side facing the electric discharge machine to conform to the operating habits of the operating technician, and the hand wheel and the rotating platform A scribing scale is provided on the outer circumference of the flange. According to the movable-column electric discharge machine of claim 3, the bottom end of the rotating base is fixed to the front end of the Y-axis slide, and the rotating platform of the rotating base is fixed to the rear end of the main shaft. The moving-column electric discharge machine according to any one of claims 1 to 6, wherein the maximum rotation angle of the main shaft is 45 degrees to increase the maximum range of the inclination angle of the machinable inclined wall surface. The moving-column electric discharge machine according to any one of claims 1 to 6, further comprising a connecting plate, wherein the connecting plate is disposed between the rotating base and the main shaft, the connecting plate has an easy assembly of the main shaft In the role of the rotating seat.