Electric spark machining tool capable of clamping multiple electrodes at one time and adjusting position

Abstract

The invention discloses an electric spark machining tool capable of clamping a plurality of electrodes at a time and adjusting the position, which comprises an adapter seat, a plurality of clamping assemblies, a plurality of clamping assemblies, a plurality of clamping assemblies and a plurality of clamping assemblies, one end of each first rotating arm is rotationally connected to the adapter, the other end of each first rotating arm naturally extends, each first rotating arm is provided with a first surface and a second surface which are opposite, a first mounting groove in the length direction of the first surface is formed in the first surface, and a first sinking groove in the length direction of the second surface is formed in the second surface; the first mounting groove is communicated with the first sinking groove; one end of each machining electrode is detachably arranged in the first mounting groove and is fixed by a first bolt, and the first bolt is arranged in the first sinking groove; the machining device comprises or does not comprise a second rotating arm, if the machining device comprises the second rotating arm, the second rotating arm is rotationally connected with the naturally-extending end of the first rotating arm, the second rotating arm is also provided with a second mounting groove and a second sinking groove in the length direction of the second rotating arm, and a plurality of machining electrodes are detachably arranged in the second mounting groove.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric spark machining, in particular to an electric spark machining tooling capable of clamping multiple electrodes at one time and adjusting positions. BACKGROUND

[0002] In the manufacturing process of injection molds, the main processing method adopted is CNC machining. However, when the mold to be processed encounters high hardness steel (such as HRC60), complex structure, deep cavity, narrow gap, fine texture, and special-shaped modeling angle, CNC machining cannot directly complete the processing or requires a large cost. Electric spark discharge machining provides a more convenient processing method, which utilizes the shape of the processing electrode to precisely form the processing area that is difficult to reach by CNC tools through discharge corrosion of steel. Therefore, electric spark machining compensates for the deficiencies of traditional CNC machining to a certain extent, but it also has its own limitations (i.e., low processing efficiency). For example, when using a processing electrode for deep hole processing, a processing electrode is generally installed on the main shaft (as shown in the following Figure 1 ), and then a deep hole structure is processed on the mold at one time through discharge corrosion.

[0003] However, due to the slow corrosion speed of electric spark discharge machining and the existing method of installing an electrode on the main shaft for electric spark machining, one electrode is clamped at one time, and one electrode can only corrode one position of the deep hole at one time, which further exacerbates the low efficiency of current electric spark machining. For example Figure 1 , the current electric spark machining method can only process one deep hole on the mold at one time. When there are many deep holes on the mold (such as n deep holes), the total processing time is h x n hours, which leads to a significant increase in the overall processing time, making the efficiency of electric spark discharge machining of deep holes particularly low. SUMMARY

[0004] The present application aims to solve the problem of long overall processing time and low efficiency caused by the current use of processing electrodes for deep hole processing of molds, one hole at a time. An electric spark machining tooling capable of clamping multiple electrodes at one time and adjusting positions is designed, which can process multiple deep holes on the mold at one time, greatly improving the efficiency and solving the problem of low efficiency of current electric spark machining.

[0005] To achieve the above purpose, the present application is realized by the following technical solutions:

[0006] The present application designs an electric spark machining tooling capable of clamping multiple electrodes at one time and adjusting positions, which includes the following structural arrangements:

[0007] an adapter seat, which is detachably connected to a main shaft of an electric spark machining device;

[0008] a plurality of first rotary arms, one end of which is rotatably connected to the adapter seat and the other end of which naturally extends, the first rotary arms having opposite first surfaces and second surfaces, the first surfaces being provided with first mounting grooves along the length direction thereof, and the second surfaces being provided with first recesses along the length direction thereof, the first mounting grooves and the first recesses being communicated to form a structure through the first surfaces and the second surfaces of the first rotary arms;

[0009] and a plurality of machining electrodes, one end of which is detachably arranged in the first mounting grooves and is fixed by first bolts, the first bolts being arranged in the first recesses so that the first bolts can be hidden in the first recesses.

[0010] Further, an electric spark machining tool capable of clamping a plurality of electrodes at one time and capable of adjusting the position of the electrodes, the machining tool further comprising a second rotary arm, one end of which naturally extends from the first rotary arms and is rotatably connected to the first rotary arms, the second rotary arm being provided with second mounting grooves and second recesses along the length direction thereof, and a plurality of machining electrodes being detachably arranged in the second mounting grooves.

[0011] Further, an electric spark machining tool capable of clamping a plurality of electrodes at one time and capable of adjusting the position of the electrodes, the machining tool further comprising third to Nth rotary arms, the third to Nth rotary arms being provided with mounting grooves and recesses corresponding to the serial numbers thereof, one end of the third rotary arm being rotatably connected to the other end of the second rotary arm, one end of the fourth rotary arm being rotatably connected to the other end of the third rotary arm, and so on, so as to complete the connection of all the rotary arms.

[0012] Further, an electric spark machining tool capable of clamping a plurality of electrodes at one time and capable of adjusting the position of the electrodes, the adapter seat comprising the following structural arrangement:

[0013] a rotating column having opposite first and second connecting ends, the first connecting end being used for detachable connection with the main shaft, and the ends of the first rotary arms being rotatably arranged on the second connecting end;

[0014] and a rotating disc, which is fixedly sleeved on the rotating column and is located between the first and second connecting ends, i.e. the rotating disc is located in the middle of the rotating column.

[0015] Further, an electric spark machining tool capable of clamping a plurality of electrodes at one time and capable of adjusting the position of the electrodes, the rotating column being detachably connected to the main shaft by a second bolt penetrating the first and second connecting ends.

[0016] Further, the electric spark machining tool capable of clamping multiple electrodes at one time and adjusting the position, the first rotating arm is provided with a through assembly hole and a bolt hole at opposite ends.

[0017] The first rotating arm is sleeved on the rotating column through the assembly hole and locked on the rotating column through a third bolt, and the second rotating arm is connected with the first rotating arm end through a fourth bolt.

[0018] Further, the electric spark machining tool capable of clamping multiple electrodes at one time and adjusting the position, the rotating disc is provided with an angle adjustment scale in the circumferential direction.

[0019] Further, the electric spark machining tool capable of clamping multiple electrodes at one time and adjusting the position, the first rotating arm and the second rotating arm are respectively provided with a size adjustment scale along the length direction.

[0020] The beneficial effects of the present application are as follows:

[0021] The machining tool designed in the present application can install multiple machining electrodes at one time, which can complete the machining of multiple deep holes on the mold at one time, greatly improving the machining efficiency. Meanwhile, the machining tool designed in the present application has a rotatable structure of the first rotating arm and the adapter, which can adjust the angle of the first rotating arm, and the first installation groove is arranged in the first rotating arm, which can freely adjust the position of the machining electrode on the first rotating arm. The combination of the two can adjust the position of the machining electrode according to the actual deep hole position required to be machined on the mold, meet the requirement of machining multiple deep holes on the mold at the same time, and increase the flexibility.

[0022] In addition, in order to further meet the requirement of machining multiple deep holes on the mold at different positions at the same time, the machining tool of the present application can be additionally provided with a third rotating arm to an Nth rotating arm (specifically selected according to actual requirements), which can form a "linkage structure" by using the first, second, third, etc. rotating arms connected at the ends, and machining electrodes are arranged on these rotating arms, so that each machining electrode can correspond to the position of the deep hole required to be machined on the mold, so as to realize the machining of multiple deep holes on the mold at different positions at the same time. The second rotating arm in the machining tool of the present application can also be selected according to the actual deep hole position required to be machined on the mold, specifically, the second rotating arm to the Nth rotating arm is used to supplement when the number or angle of the first rotating arm is insufficient.

[0023] The machining tool designed by the present application improves the original clamping mode from clamping one machining electrode to clamping multiple machining electrodes simultaneously, so that multiple deep holes can be machined simultaneously, and the working efficiency of the electric spark discharge machining deep holes is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 A schematic diagram of clamping machining electrodes for deep hole machining of a mold by using the machining tool designed by the present application;

[0026] Figure 2 A schematic diagram of clamping machining electrodes for deep hole machining of a mold by using the machining tool designed by the present application;

[0027] Figure 3 A schematic diagram of the connection between the adapter and the main shaft in the embodiment 1 of the present application;

[0028] Figure 4 A schematic diagram of the connection between the adapter, the first rotating arm and the main shaft in the embodiment 1 of the present application;

[0029] Figure 5 A schematic diagram of the connection between the adapter, the first rotating arm and the main shaft in the embodiment 1 of the present application; Figure 4 A top view of the A part, i.e. a schematic diagram of the structure of the two first rotating arm sleeves on the rotating column;

[0030] Figure 6 A sectional view of the first rotating arm in the embodiment 1 of the present application;

[0031] Figure 7 A front view of the connection between the first rotating arm and the second rotating arm in the embodiment 1 of the present application;

[0032] Figure 8 A back view of the connection between the first rotating arm and the second rotating arm in the embodiment 1 of the present application.

[0033] The marks in the drawings are as follows:

[0034] 1-adapter, 2-first rotating arm, 3-machining electrode, 4-second rotating arm, 5-first bolt, 6-main shaft, 7-mold, 8-deep hole, 11-rotating column, 12-rotating disc, 13-first connecting end, 14-second connecting end, 15-second bolt, 21-first surface, 22-second surface, 23-first mounting groove, 24-first sink groove, 25-assembly hole, 26-bolt hole, 27-third bolt, 28-fourth bolt, 41-second mounting groove, 42-second sink groove. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicating directions or positional relationships, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0037] Example 1

[0038] like Figures 2 to 8 As shown, in this embodiment 1, an EDM tooling is designed that can clamp multiple electrodes at a time and adjust the position. The tooling includes the following structural settings:

[0039] An adapter 1 is detachably connected to the spindle 6 of the electrospark machining equipment. Specifically, the adapter 1 includes a rotating column 11 and a rotating disk 12. The rotating column 11 has a first connecting end 13 and a second connecting end 14 opposite to each other. The rotating column 11 is detachably connected to the spindle 6 via a second bolt 15 that passes through the first connecting end 13 and the second connecting end 14. The rotating disk 12 is fixedly sleeved on the rotating column 11 and is located between the first connecting end 13 and the second connecting end 14. An angle adjustment scale is also provided on the circumference of the rotating disk 12.

[0040] two first rotary arms 2, each having opposite first and second surfaces 21, 22, the first surface 21 being provided with a first mounting groove 23 along the length direction thereof, the second surface 22 being provided with a first sink groove 24 along the length direction thereof, the first mounting groove 23 and the first sink groove 24 being communicated to form a structure through the first and second surfaces 21, 22 of the first rotary arm 2, opposite ends of the first rotary arm 2 being provided with a through assembly hole 25 and a bolt hole 26 respectively, one end of the first rotary arm 2 being sleeved on the rotating column 11 through the assembly hole 25 and locked on the rotating column 11 by a third bolt 27, the other end (i.e. the end provided with the bolt hole 26) extending naturally, the first rotary arm 2 being further provided with a size adjustment scale along the length direction thereof;

[0041] a plurality of machining electrodes 3, one end of each of which is detachably arranged in the first mounting groove 23 and fixed by a first bolt 5, the first bolt 5 being arranged in the first sink groove 24 and capable of being hidden in the first sink groove 24;

[0042] and two second rotary arms 4, each being rotationally connected with the naturally extending end of the first rotary arm 2, specifically, the second rotary arm 4 is connected with the bolt hole 26 by a fourth bolt 28 to realize the rotational connection with the end of the first rotary arm 2, the second rotary arm 4 being also provided with a second mounting groove 41 and a second sink groove 42 along the length direction thereof, a plurality of machining electrodes 3 being detachably arranged in the second mounting groove 41 and fixed by the first bolt 5.

[0043] The number of the first and second rotary arms 2, 4 in the above embodiment 1 is not limited to two, and can be set according to the need. In addition, the above embodiment 1 is not limited to the setting of the first and second rotary arms 2, 4, and the first rotary arm 2 can be arranged only according to the need of the machining position of the deep hole 8 on the actual mold 7 to be machined, or a third rotary arm or even more rotary arms can be arranged, for example, one end of the third rotary arm is rotationally connected with the other end of the second rotary arm 4, one end of the fourth rotary arm is rotationally connected with the other end of the third rotary arm, and so on, to complete the connection of more rotary arms, which can form a "linkage structure" after the rotational connection of the first, second, third, etc. rotary arms, so as to cover a wider range, thereby realizing the machining of different positions of the deep hole 8 on the corresponding mold 7, and achieving the synchronous machining of multiple deep holes at different positions on the mold 7, to improve the hole machining efficiency.

[0044] The processing tool of the embodiment 1 can be adjusted in position according to the angle adjustment scale provided on the adapter 1 when in use. When the electrode 3 is installed to the first rotary arm 2, the position of the electrode 3 can be adjusted according to the position of the deep hole 8 to be processed on the mold 7 and the size adjustment scale (scale) on the first rotary arm 2, so that the multiple electrodes 3 can correspond to the position of the deep hole 8 to be processed respectively, and the multiple electrodes can be clamped simultaneously and the processing of the multiple deep holes 8 can be performed simultaneously.

[0045] The above is only used for explaining the application, and is not used for limiting the application. Any obvious changes or variations derived from the technical scheme of the application are still within the protection scope of the application.

Claims

1. An EDM tooling capable of clamping multiple electrodes at a time and adjusting their positions, characterized in that: The processing tooling includes the following structural settings: An adapter (1) detachably connected to the main shaft (6); A plurality of first rotary arms (2), one end of which is rotatably connected to the adapter (1) and the other end of which is naturally extended, the first rotary arms (2) having a first surface (21) and a second surface (22) opposite to each other, the first surface (21) being provided with a first mounting groove (23) along its length direction, the second surface (22) being provided with a first sinking groove (24) along its length direction, the first mounting groove (23) and the first sinking groove (24) being in communication; and a plurality of processing electrodes (3), one end of which is detachably disposed in the first mounting groove (23) and fixed by a first bolt (5), wherein the first bolt (5) is disposed in the first sink groove (24).

2. The EDM tooling capable of clamping multiple electrodes at a time and adjusting their positions according to claim 1, characterized in that: The processing tool also includes a second rotary arm (4), which is rotatably connected to one end of the first rotary arm (2) that extends naturally. The second rotary arm (4) is also provided with a second mounting groove (41) and a second sink groove (42) along its length direction. A plurality of processing electrodes (3) are detachably provided in the second mounting groove (41).

3. The EDM tooling capable of clamping multiple electrodes at a time and adjusting their positions according to claim 2, characterized in that: The processing tooling may also include a third to an Nth rotary arm, each of which is provided with a mounting groove and a sink groove of corresponding serial number, one end of the third rotary arm being rotatably connected to the other end of the second rotary arm (4), one end of the fourth rotary arm being rotatably connected to the other end of the third rotary arm, and so on.

4. The EDM tooling capable of clamping multiple electrodes at a time and adjusting their positions according to claim 1, characterized in that: The adapter (1) includes the following configurations: A rotating column (11) having a first connecting end (13) and a second connecting end (14) opposite to each other, wherein the first connecting end (13) is used for being detachably connected to the main shaft (6), and the ends of the plurality of first rotary arms (2) are respectively rotatably arranged on the second connecting end (14); and a rotating disk (12), which is fixedly sleeved on the rotating column (11) and located between the first connecting end (13) and the second connecting end (14).

5. The EDM tooling capable of clamping multiple electrodes at a time and adjusting their positions according to claim 4, characterized in that: The rotating column (11) is detachably connected to the main shaft (6) via a second bolt (15) passing through the first connecting end (13) and the second connecting end (14).

6. The EDM tooling capable of clamping multiple electrodes at a time and adjusting their positions according to claim 4, characterized in that: The first swing arm (2) is provided with a through assembly hole (25) and a bolt hole (26) at opposite ends thereof; the first swing arm (2) is sleeved on the rotating column (11) through the assembly hole (25) and is locked on the rotating column (11) through a third bolt (27); the second swing arm (4) is connected to the bolt hole (26) through a fourth bolt (28) to realize a rotational connection with the end of the first swing arm (2).

7. The EDM tooling capable of clamping multiple electrodes at a time and adjusting their positions according to claim 4, characterized in that: Angle adjustment scales are provided on the circumference of the turntable (12).

8. The EDM tooling capable of clamping multiple electrodes at a time and adjusting their positions according to claim 1, characterized in that: The first rotary arm (2) and the second rotary arm (4) are respectively provided with size adjustment scales along their length directions.

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