CN212885532U

CN212885532U - Deep cavity impurity removing structure for electric spark machining

Info

Publication number: CN212885532U
Application number: CN202021591581.8U
Authority: CN
Inventors: 王立锋
Original assignee: Tutai Precision Mould Suzhou Co ltd
Current assignee: Tutai Precision Mould Suzhou Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-04-06
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses an impurity structure is got rid of in deep die cavity for electric spark machining belongs to the electric spark machining field, and it includes the deep cavity electrode, deep cavity electrode lower surface is formed with the processing portion of a plurality of die cavity adaptations with the deep cavity work piece, the oil circuit hole has been seted up to deep cavity electrode perpendicular to length direction, the oil circuit hole is seted up between two adjacent processing portions between two parties, it has oil pipe to peg graft in the oil circuit hole, the oil pipe leads to there is spark oil, and spark oil passes through space between processing portion and the die cavity of flowing through behind the oil circuit hole is cleared up the die cavity. The utility model discloses have and be convenient for clear up dark chamber work piece, be difficult for taking place the carbon deposition condition to guarantee machining efficiency's effect.

Description

Deep cavity impurity removing structure for electric spark machining

Technical Field

The utility model relates to an electrical discharge machining technical field, in particular to impurity structure is got rid of with dark die cavity to electrical discharge machining.

Background

The electric spark machining is a special machining method for removing a conductive material by utilizing an electric erosion effect generated during pulse discharge between two electrodes immersed in a working solution, and is called EDM for short. The electric spark machine oil is a discharge medium and plays roles of cooling, chip removal and the like in the machining process. In the prior art, the flow of spark oil is driven by an oil pump, flows from the bottom surface of a spark machine to a workpiece, flows to an oil cylinder through a hole on the side surface of the machine table, and then circularly flows through the driving of the oil pump.

The following problems exist in the prior art: in order to stably process spark oil, the spark oil is required to be ensured to rush through a discharge gap, as shown in the attached drawing 1 of the specification, a deep cavity workpiece for electric spark machining in the prior art is provided, the spark oil is difficult to rush to the deepest part of a cavity of the workpiece in the traditional oil flushing mode, impurities are difficult to clear the deeper the cavity, carbon deposition is easy to generate, an electrode needs to be lifted to a certain height for cleaning, then the machining can be continued, the efficiency is slow, and the problem needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an impurity structure is got rid of with dark die cavity to spark-erosion machining has and is convenient for clear up dark chamber work piece, is difficult for taking place the carbon deposition condition to guarantee machining efficiency's effect.

The utility model provides an impurity structure is got rid of with dark die cavity to electric spark machining, includes dark chamber electrode, dark chamber electrode lower surface is formed with the processing portion of a plurality of die cavity adaptations with dark chamber work piece, the oil circuit hole has been seted up to dark chamber electrode perpendicular to length direction, the oil circuit hole is seted up between two adjacent processing portions between two parties, it has oil pipe to peg graft in the oil circuit hole, the oil pipe leads to there is spark oil, and spark oil passes through clearance to clearing up the die cavity between processing portion and the die cavity of flowing through behind the oil circuit hole.

The utility model discloses further set up to: the oil pipe is characterized in that a plurality of connecting pieces are arranged on the hole wall of the oil way hole, a plurality of connecting grooves are formed in the connecting part corresponding to the connecting part at the connecting part of the oil pipe and the oil way hole, the connecting pieces are arranged in a straight shape, each connecting groove is provided with a yielding groove on the same side, the yielding grooves are communicated with the side walls of the connecting grooves, and the connecting pieces are rotatably embedded into the connecting grooves after entering the yielding grooves through the notches of the yielding grooves.

The utility model discloses further set up to: the connecting part is detachably connected with the joint of the oil pipe and the oil way hole, the connecting part is sleeved on the oil pipe, and the connecting piece is arranged on the connecting part.

The utility model discloses further set up to: the oil pipe is characterized in that an external thread is formed on the outer wall of the oil pipe, an internal thread matched with the external thread is formed on the inner wall of the connecting portion, and the oil pipe is detachably connected with the connecting portion through the internal thread and the external thread.

The utility model discloses further set up to: the connecting portion roof has seted up the holding tank, fixedly connected with sealing member in the holding tank, sealing member and oil circuit hole lateral wall laminating.

The utility model discloses further set up to: the sealing element is a rubber ring with elasticity.

The utility model discloses further set up to: a limiting ring is formed on the groove wall of the accommodating groove, a limiting groove is formed in the inner wall of the sealing element, and the limiting groove and the limiting ring are mutually embedded.

When the oil pipe is connected with the deep cavity electrode, the connecting part is screwed on the oil pipe through the internal thread and the external thread, and then the connecting part is embedded into the bottom of the groove from the notch of the abdicating groove and is rotated to enable the connecting part to be embedded into the connecting groove oil pipe to be connected with the deep cavity electrode. Spark oil is introduced into the oil pipe, enters between the processing part and the cavity of the deep-cavity workpiece through the oil way hole, and achieves a good cooling effect when impurities generated by processing are flushed out of the cavity through the fluidity of the spark oil.

To sum up, the utility model discloses following beneficial effect has:

1. spark oil is introduced into the oil pipe through the oil pipe connected with the deep cavity electrode through the oil way hole, and impurities in the cavity are flushed out by utilizing the stability of the spark oil to replace the process of stopping and cleaning in the prior art;

2. the connecting stability of the oil pipe is facilitated through the connecting piece arranged on the hole wall of the oil way hole and the abdicating groove and the connecting groove formed on the side wall of the oil pipe;

3. through the setting of the connecting portion that can dismantle even with oil pipe through the screw thread, take off connecting portion and can clear up the spread groove and the groove of stepping down.

Drawings

FIG. 1 is a schematic diagram of a prior art structure for embodying the whole;

fig. 2 is a schematic structural diagram for embodying the whole of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram of the present invention for embodying an abdicating groove;

fig. 5 is a schematic cross-sectional view of the connection relationship between the connection portion and the oil passage hole in the present invention.

In the figure, 1, a deep cavity electrode; 11. a processing section; 12. an oil passage hole; 121. a connecting member; 2. an oil pipe; 21. An external thread; 3. a connecting portion; 31. accommodating grooves; 311. a limiting ring; 32. a seal member; 321. a limiting groove; 33. an internal thread; 34. connecting grooves; 35. a yielding groove; 4. a deep cavity workpiece; 41. a cavity; 42. and (4) spark oil.

Detailed Description

The present invention will be described in detail with reference to the attached drawings, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also regarded as the scope of the present invention without substantial changes in the technical content.

Example (b):

as shown in fig. 2 and 3, for the utility model discloses a deep cavity 41 gets rid of impurity structure for spark-erosion machining, including deep cavity electrode 1, deep cavity electrode 1 lower surface is formed with the processing portion 11 of a plurality of die cavity 41 adaptations with deep cavity work piece 4, and oil circuit hole 12 has been seted up to deep cavity electrode perpendicular to length direction, and oil circuit hole 12 is seted up between two adjacent processing portions 11 between two parties, and it has oil pipe 2 to peg graft in oil circuit hole 12, and the expert has spark oil 42 in oil pipe 2, and spark oil 42 is cleared up in flowing through the space between processing portion 11 and the die cavity 41 behind oil circuit hole 12 in the die cavity 41.

As shown in fig. 3 to 5, the connecting portion 3 can be detachably connected to the joint of the oil pipe 2 and the oil passage hole 12, the connecting portion 3 is sleeved on the oil pipe 2, four connecting members 121 are arranged on the hole wall of the oil passage hole 12, the connecting members 121 correspond to the connecting members 121 at the joint of the oil passage hole 12 and are provided with four connecting grooves 34, the connecting members 121 are arranged in a straight shape, the yielding grooves 35 are formed in the same side of each connecting groove 34, the yielding grooves 35 are communicated with the side walls of the connecting grooves 34, and the connecting members 121 are rotatably embedded into the connecting grooves 34 after entering the yielding grooves 35 through the notches of. Be formed with external screw thread 21 on the oil pipe 2 outer wall, be formed with the internal thread 33 with the adaptation of external screw thread 21 on the 3 inner walls of connecting portion, can dismantle through internal thread 33 and external screw thread 21 and be connected between oil pipe 2 and the connecting portion 3.

As shown in fig. 3, a receiving groove 31 is formed on the top wall of the connecting portion 3, a sealing element 32 is fixedly connected in the receiving groove 31, the sealing element 32 is attached to the side wall of the oil passage hole 12, a limiting ring 311 is formed on the groove wall of the receiving groove 31, a limiting groove 321 is formed on the inner wall of the sealing element 32, the limiting groove 321 is embedded with the limiting ring 311, and the sealing element 32 is an elastic rubber ring. The notch of the abdicating groove 35 arranged on the bottom wall of the connecting part 3 is aligned with the connecting part 121, then the connecting part 3 moves downwards to the connecting part 121 and rotates after being attached to the groove bottom of the abdicating groove 35, at the moment, the connecting part 121 enters the connecting groove 34, and the sealing element 32 is attached to the hole wall of the oil way hole 12 to achieve a good sealing effect. The dismounting process of the oil pipe 2 and the oil way hole 12 is opposite to the mounting process, the oil pipe 2 is dismounted from the oil way hole 12, and then the connecting part 3 is screwed off, so that the abdicating groove 35 and the connecting groove 34 can be cleaned for subsequent use.

The implementation principle of the above embodiment is as follows: when the oil pipe 2 is connected with the deep cavity electrode 1, the connecting part 3 is firstly screwed on the oil pipe 2 through the internal thread 33 and the external thread 21, then the connecting part 121 is embedded into the groove bottom of the yielding groove 35 from the notch of the yielding groove, and then the connecting part 3 is rotated to enable the connecting part 121 to be embedded into the connecting groove 34, so that the oil pipe 2 is connected with the deep cavity electrode. The spark oil 42 is introduced into the oil pipe 2, the spark oil 42 enters between the processing part 11 and the cavity 41 of the deep-cavity workpiece 4 through the oil passage hole 12, and impurities generated by processing are flushed out of the cavity 41 through the fluidity of the spark oil 42, and meanwhile, a good cooling effect is achieved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A deep cavity (41) impurity removing structure for electric spark machining is characterized in that: including dark chamber electrode (1), dark chamber electrode (1) lower surface is formed with processing portion (11) of die cavity (41) adaptation a plurality of and dark chamber work piece (4), oil circuit hole (12) have been seted up to dark chamber electrode perpendicular to length direction, oil circuit hole (12) are seted up between two adjacent processing portions (11) between two placed in the middle, it has oil pipe (2) to peg graft in oil circuit hole (12), oil pipe (2) expert has spark oil (42), and spark oil (42) pass through clearance between processing portion (11) and die cavity (41) is cleared up in oil circuit hole (12) back flow through processing portion (11) and die cavity (41).

2. The deep cavity (41) for electric discharge machining according to claim 1, wherein: be provided with a plurality of connecting pieces (121) on the pore wall of oil circuit hole (12), a plurality of spread grooves (34) have been seted up to oil pipe (2) and oil circuit hole (12) junction correspondence connecting piece (121), connecting piece (121) set up to a style of calligraphy, every groove (35) of stepping down has been seted up to the equal homonymy in spread groove (34), groove (35) of stepping down and spread groove (34) lateral wall intercommunication, notch department entering through groove (35) of stepping down of connecting piece (121) is rotated after groove (35) of stepping down and is imbedded in spread groove (34).

3. The deep cavity (41) for electric discharge machining according to claim 2, wherein: the connecting part (3) is detachably connected to the joint of the oil pipe (2) and the oil way hole (12), the connecting part (3) is sleeved on the oil pipe (2), and the connecting piece (121) is arranged on the connecting part (3).

4. An electric discharge machining deep cavity (41) impurity removing structure according to claim 3, characterized in that: be formed with external screw thread (21) on oil pipe (2) outer wall, be formed with on connecting portion (3) inner wall with internal thread (33) of external screw thread (21) adaptation, can dismantle through internal thread (33) and external screw thread (21) and be connected between oil pipe (2) and connecting portion (3).

5. An electric discharge machining deep cavity (41) impurity removing structure according to claim 3, characterized in that: an accommodating groove (31) is formed in the top wall of the connecting portion (3), a sealing element (32) is fixedly connected in the accommodating groove (31), and the sealing element (32) is attached to the side wall of the oil way hole (12).

6. An electric discharge machining deep cavity (41) impurity removing structure according to claim 5, characterized in that: the sealing element (32) is a rubber ring with elasticity.

7. The deep cavity (41) for electric discharge machining according to claim 6, wherein: a limiting ring (311) is formed on the groove wall of the accommodating groove (31), a limiting groove (321) is formed in the inner wall of the sealing element (32), and the limiting groove (321) and the limiting ring (311) are mutually embedded.