JPS6062418A - Device for processing by electrical current - Google Patents

Abstract

PURPOSE:To reduce the weight of a bed and improve the ratio in weight synthesis, by minimizing the relative error between a processing electrode and a workpiece even if the center of gravity is displaced along with the movement of a saddle or the like on the bed. CONSTITUTION:Leveling bolts 13a, 13b, 13c are provided at the bottom of a bed 90, in positions near minimally-required reinforcing plates 15a, 15b secured on both the end faces of the bed, and in a position right under a column base 11a, respectively, to prevent the bed from being deformed when the center of gravity is displaced. Since the weight of the bed 90 is decreased on both the sides of the column base 11a and the minimally-required reinforcing plates 15a, 15b are provided, the relative error between a processing electrode and a workpiece is very much diminished.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention involves placing a wrinkled workpiece and a machining positive electrode and a four-proof (negative electrode) facing each other through an extremely small gap in an insulating machining liquid, and then This invention belongs to electrical processing equipment (including discharge 1V; 5 processing equipment, electrolytic processing equipment, etc.) that processes a workpiece into a 91-leg shape by generating a Varnu discharge of about 200 volts, and in particular, this invention 1. The electrification processing equipment has a one-copy system for each stop. It is a type of electric machining equipment that has been developed in India and has a beveled surface with a high weight-to-discharge ratio by removing unnecessarily rigid parts to reduce the amount of M.

[Prior art]

Figure 1 shows the conventional 1st position of this type of electrical processing.
1) is a machining tank in which the workpiece (5) and the machining electrode (3) are faced to each other with a predetermined distance of 1; 1! The pole (3) is detachably attached to a main shaft (4) that feeds the bar in two directions at a predetermined speed. (6) is a table on which the processing tank (1) is placed and fixed, and this table (6) is equipped with a saddle (7).
The saddle (7) is held movably in the X direction on a pair of guide rails (8) arranged at a predetermined interval on the upper surface of the table (7), and also supports the table (6).
(It is held movably in the Y direction on a pair of guide rails α0 arranged at a predetermined interval on the upper surface of the rad (9). Therefore, it can be detachably installed in/in the processing tank (1). The processed workpiece (5) is moved at a predetermined speed in the X direction and the Y direction, and the processing electrode (3) is fed by the main shaft (4) in two directions at a predetermined speed. ) is configured to carry out a predetermined energization process on the above-mentioned machining electrode (3).The main shaft (4) to which the above-mentioned processing electrode (3) is attached is connected to the column α knife fixed upright on the upper surface side of the above-mentioned (rad (9)). The feeding device (
(not shown), and the processing electrode (3) is processed and fed by this feeding device. Further, the bottom of the above-mentioned India (9) is supported at four points on the ground surface by a plurality of rotatable leveling bolts (C) and a butt 'a4.

Since the conventional electrical processing apparatus is configured as described above, the processing tank (1) with the workpiece (5) attached thereto, and the table (6) together with the saddle (7) are smoothly moved in the Y direction.
Each of these members inevitably shifts their center of gravity relative to India (9), and deforms into a concave shape as shown in the second section. Furthermore, this deformation of the saddle (9) also affects the column α (1) that supports the head (6), causing it to tilt in the direction opposite to the direction of movement of the saddle (7).

That is, when the saddle (7) moves in the direction approaching the column o, the column 0υ also tilts in the direction approaching the saddle (7), and the saddle (7) moves in the direction away from the column α. When it moves, the inclination of the t:l column (11) decreases, and the distance from the saddle (<11) increases.

As mentioned above, as the bed (9) and column Q°C are deformed due to the displacement υ of the saddle (7), the second As shown in the figure, relative errors "Δy" and "Δ2" inevitably occur.

FIG. 6 is an analytical diagram showing the -half of the bed (9) deformed in this way, and it can be seen that the amount of deformation (δJ) of the bed (9) is extremely large.

Next, even if the saddle (7) is moved in the
Head (9) due to the lifting of the leveling bolt (to), which has a lighter load due to a change in the load bearing amount for (c)
Not only does a torsional deformation occur, but also relative errors ``ΔS'' and ``Δ2'' occur between the machining electrode (3) and the workpiece (5), as shown in Figure 4. .

In the conventional electrical processing equipment, as mentioned above, the saddle (7) is used together with the processing tank (1) etc. in which the workpiece (5) is attached.
When the is moved in the Y direction or the X direction, the machining electrode (3) and workpiece (5 ), which inevitably causes a relative error between the two, resulting in the disadvantage that high-precision machining cannot be performed. In addition, as a means to eliminate the above-mentioned drawbacks, in order to partially strengthen the bead (9), a large number of coconut-reinforced ribs were welded around the bead. However, not only does it significantly increase the weight of the electrical processing equipment, but it also has drawbacks that lead to increased costs.Additionally, the addition of reinforcing ribs does not increase the rigidity despite the increased weight.
On the contrary, the weight-to-rigidity ratio often decreases.

[Summary of the invention]

This invention was made with attention to this point, and aims to reduce the weight of the bed and improve the weight-to-rigidity ratio.
It is an object of the present invention to provide an electrical machining equipment in which the amount of relative error between a machining electrode and a workpiece is minimized even if the center of gravity moves with the movement of a saddle or the like on India.

[Embodiments of the invention]

That is, FIG. 5 shows an embodiment of this invention.
(90) - For example, the column supporting head (2) 0η
A column holder (90a) is formed for placing and fixing the chisel, and a relatively thin minimum required reinforcing plate (90a) is provided on both end faces.
15a) and (15b) are polymerized and fixed, for example, by seam welding, spot welding, or high-strength adhesive. Leveling poles (13a) (13b) having butts'('14a) (14b) are rotatably screwed into the positions shown above.
) A leveling bolt ('13cl) that holds the pad' (14C) is rotatably screwed into the mounting seat (9ob) formed directly below the bottom of the column (9ob) placed on the column holder t11a. (b) It is designed to mainly support the weight of (b). Note that the top surface of the column pedestal (11a) is
The above-mentioned machine is formed to have a small area in order to place only the column (111), but this has no effect on the rigidity of the India (9U).It is necessary to cut the heads on both sides of the column pedestal (11a). It was designed to reduce weight.

As mentioned above, the electrical processing apparatus of the present invention has the following features:
Leveling bolts (13a) are installed on the bottom of the bed (90) at positions close to the minimum required reinforcing plates (15a) (15b) superimposed and fixed on both ends of this bed, and directly below the column pedestal (11a). (13b) and (13c) are arranged to prevent the deformation of the bed (90) due to the movement of the center of gravity. It is clear that the amount of deformation (δ) of the bed (90) has decreased.

In addition, FIG. 7 shows another embodiment of the present invention, which includes a plurality of leveling poles (13a) (13b) provided with traps on the bottom of the item (90), and a berad (90).
) Reinforcement plates (15a) (15b) are interposed in the India (90) between the guide rail 4 for the movement of the saddle (7) arranged on the top (2) of the saddle (7). The operation and effect are exactly the same as the above-mentioned embodiment.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to reduce the weight by cutting off the bead on both sides of the column pedestal, which has no effect on rigidity, and to reduce the weight only to the minimum required level on the head corresponding to the leveling bolt. By inserting a reinforcing plate, the workpiece can be placed on the bed, and the workpiece is secured between the machining electrode and the workpiece by means of a pad that prevents deformation of the workpiece even if the saddle moves along with the high-height machining tank, etc. This has an excellent effect in that the relative error between objects is significantly reduced, and it is possible to provide an electric processing apparatus that is inexpensive and capable of processing with a high degree of adhesion.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional electrical processing device, Fig. 2 is a side view showing a deformed state of the conventional electrical processing device, Fig. 3 is an analysis diagram showing the deformed state of India, and Fig. 4 is a conventional electrical processing device. A positive sign indicating the deformation state of the machining electrode and workpiece in an electrical machining device.
A front view, FIG. 5 is a perspective view of the bed according to the present invention, and FIG.
The figure is an analytical diagram showing the deformed state of the bed according to the present invention.
FIG. 7 is a perspective view of a rad showing another embodiment of the invention. In the figure, (1) is a processing tank, (3) is a processing electrode, and (5) is a processing tank.
) is the workpiece, (6) is the table, (7) is the saddle, (
8) α1 is the guide rail, αυ is the column, (11a) is the column pedestal, θ2 is the head, (13a) (13bX13
c) Leveling bolts. Note that the same reference numerals in the figures indicate the same or corresponding parts. Figure 1 Figure 21 Flame 3 N Cruel 4I! 1 No. 5 Figure 6 Figure 3c Procedural correction band (spontaneous) Showa 1 □ 59, 4110 October 16. 2. Name of the invention Electrical processing device (after amendment) 3. Relationship with the case of the person making the amendment Patent applicant address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name
(601) Mitsubishi Electric Co., Ltd. Representative Hitoshi Katayama 4, Agent 5, Subject of amendment 6, Contents of amendment (1) Name of the invention 1 ltm in the specification, & ``Electrification processing equipment'' (2) Amend the scope of claims as shown in the attached sheet. (3) Page 2 of the specification, lines 11, 16, 16, and Line 18, page 4, line 6, page 5, line 16, page 6, lines 6 and 16, page 9, line 6, il” line 6, line 7 In the 2nd and 9th lines, the words "E electric processing equipment" are corrected to "electrical processing equipment." (4) In the 16th line of the 6th page of the same page, "upper surface - side" is corrected to read "upper surface." (5) Delete “by welding, etc.” from the second line of page 6. (6) From line 17 of page 6 to line 5 of page 7, “(a) is on the negative side.” "The river is a bed, and the bed has a head (1'J supported) at the center of one end." A column holder (90a) is formed to carry only the IJJ column (IJJ). It is formed so as to protrude from one end side of the bed 6X by cutting the nearby both) jμ, and the width i-, j column of the column holder (90a) is the bed width near the column fixing part of the bed. (11
) Column width and tail are the same. (15a), (
15b) are provided on both sides of the bed member, and are made of reinforcing plates having high rigidity against the compressive load (load in the Z-axis direction). On the bottom of this bed, there are T G's directly on both sides of the bed.
A pad (14a) that provides a bed support point at the L position, (1
4b)'(Rulehering bolt (13a) with r, (
13b) Each cassette is screwed in so that it can rotate freely. (7) From page 7, line 17 to page 8, line 19, the ending ``Because of this invention...'' is supplemented as follows. [As mentioned above, the nausea processing device of the present invention has a bed 6.
On the bottom of the Q, directly below both sides of the bed and the column cradle (11
Place the leveling bolts (1st hole a), (13b) and (1st hole C) directly below Jz (j'), respectively.
In fE rice equipment, reinforcing plate (15a) + (15”
) The weight of the saddle (7), table (6), etc. caused bending due to the distance between the mounting positions of the bolts (14a) and (14b). The reinforcing plate (15K) was generated due to the binding action. The bending deformation of the bed (15b) is reduced, and furthermore, the deformation of the bed (a) due to the shift of the center of gravity is prevented.
The figure is an analytical diagram showing one half of the bed according to the present invention, and it can be seen that the amount of deformation (δ) and force of the bed (A) has decreased. In addition, FIG. 7 shows another embodiment of this invention.
This is a pair of guide rails (10) and reinforcing plates (10 and 10) for moving the saddle (7) placed on the top surface of the bed (A), which are placed directly under α0 on the bottom of the bed (A). 15a). (15b) has a band (14a) (14b) directly below the leveling bolt (1 roller a). (17) b) each has nine rotatable VCs, and the saddle (7), The reinforcing plate (which directly receives the moving load of the table (6) etc. via the guide rail IJ, (11)
1/Cf6 leveling bolts (15a), (15b) directly below the leveling bolts (15a), (15b) that support the bed.
) and (15b), the changes in the loads i1 and sum-death can be extremely reduced, so that effects greater than those of the above-mentioned embodiments can be obtained. [Coverage of the invention] As described above, according to the present invention, the bed width near the column of the bed in which the column is erected is made the same as the column width of the column. It is possible to improve the rigidity ratio of the weight scale without reinforcing ribs, etc., which would increase the weight. VC was placed so that the bed support point was located directly below the reinforcing plate shown at t. Add the code "5" as in :. (9) In the drawings, i'47 all attached sheets! l! Positive (nu111
In ■, the code is "15" like Shuyu (CI-1, 5
a J V supplementary IE. Hereinafter, the scope of the claims in the second appendix (1)
An electric machining device that feeds machining electrodes that face a workpiece with a predetermined gap between them. An electrical processing device having at least one bed support point located directly below each plate. Figure 1 No. 71!1

Claims (4)

[Claims] (1) In order to perform several phrases of this colano, in a column having a head for processing and feeding a processing electrode that faces a processing-oriented workpiece placed on the surface with a predetermined distance of 1k. Install the minimum required reinforcing plate at the predetermined position of the India where the MM was reduced by cutting the area near the column pedestal formed on the top surface of the Nikurad, and install multiple leveling bolts on the bottom of the India near this reinforcing plate. An electrical processing device characterized by the following: (2) The electrical processing apparatus according to claim 1, characterized in that reinforcing plates are superimposed and fixed on both end faces of the ink. (3) A patent characterized in that a reinforcing plate is provided between the guide rail on the top of the bed that movably supports the saddle on which the processing tank is placed and a number of leveling bolts attached to the bottom of the bar. An electrical processing apparatus according to claim 1. (4) The electrical processing apparatus according to claim 1, characterized in that a leveling bolt is provided on the straight-F bottom surface of the column holder of the bed.