CN213033836U

CN213033836U - Working liquid tank for electric spark machining

Info

Publication number: CN213033836U
Application number: CN202021904586.1U
Authority: CN
Inventors: 常皓; 韩警贤; 刘嘉霖
Original assignee: Zhengzhou Technical College
Current assignee: Zhengzhou Technical College
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-04-23
Anticipated expiration: 2030-09-03

Abstract

The utility model relates to an annex for the electric spark machining process has especially related to an electric spark machining work cistern. This spark-erosion machining work cistern includes the cell body, is equipped with the working solution chamber on the cell body, working solution chamber bottom has the opening, and the cell body is equipped with cell body seal structure around the opening, and this seal structure is used for being processed the peripheral sealed cooperation in district with being processed of work piece, and the opening is used for making being processed the work piece expose in the working solution chamber with the electrode machining that can be by spark-erosion machining equipment by the processing district. When the electric spark machining device is used, working fluid can be added into the working fluid cavity through the electrode of the electric spark machining device, and due to the arrangement of the groove body sealing structure, the working fluid only submerges the machining part of the machined workpiece or slightly expands the range of the machining part of the machined workpiece, so that the electric spark machining can be completed by using less working fluid, other parts of the machined workpiece are not polluted, and the problems that the working fluid utilization rate of the existing working fluid groove is low and parts are polluted are solved.

Description

Working liquid tank for electric spark machining

Technical Field

The utility model relates to an annex for the electric spark machining process has especially related to an electric spark machining work cistern.

Background

The electric spark machining equipment is mechanical machining equipment and is mainly used for electric spark machining. The method is widely applied to the manufacture of various metal dies and mechanical equipment. It is a special processing method for corroding and removing conductive material by using the electric corrosion action generated when pulse discharge is generated between two electrodes immersed in working liquid, also called as electric discharge processing or electric corrosion processing.

The existing spark machine generally comprises a machine body, wherein a working liquid tank is arranged on the machine body, a workbench is arranged in the working liquid tank, a chuck for clamping a tool electrode is arranged above the workbench, and the chuck is connected with the machine body. In the electric spark machining, a part to be machined needs to be immersed in a working liquid medium in a working liquid groove, the working liquid medium can form a spark breakdown discharge channel at the initial stage of discharge, and the insulation state of a gap is quickly recovered after the discharge is finished; the compression effect is generated on the discharge channel; the throwing-out and the removal of the electrolytic corrosion products are facilitated; cooling the tool and the workpiece.

As an important component of electric discharge machining equipment. The structure of the working liquid tank in the prior art is generally that the bottom and the periphery are outer walls made of iron sheets, wherein the outer wall on one side can be opened for installing a workpiece. When in processing, the workpiece is completely immersed in the working solution, and the problems of large size, high consumption of the working solution and low utilization rate of the working solution exist. Particularly, when the device is used for processing a complex cavity type workpiece, the device is totally immersed in the working liquid, so that the cleaning of the inner part of the workpiece is difficult. After the processing is finished, workers need to take gloves and stretch hands into the working solution to take out the workpiece, so that the operation is inconvenient, the gloves are easy to seep when the gloves are in large-area contact with the working solution with certain corrosiveness, the hands of the workers are wetted, and the skins of the workers are damaged. Meanwhile, the working solution remains in the working solution tank, and the working solution and the electric corrosion products often remain in the working solution tank of the machine tool, so that certain difficulty is caused in cleaning the working solution tank.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric spark machining work cistern to solve the problem that current work cistern working solution utilization ratio is low, pollutes the part.

The utility model discloses an electrosparking work cistern adopts following technical scheme: an electric discharge machining working fluid bath comprising:

the cell body, be equipped with the working solution chamber on the cell body, working solution chamber bottom has the opening, and the cell body is equipped with cell body seal structure around the opening, and this seal structure is used for with by the peripheral sealed cooperation in processing district of processing work piece, and the opening is used for making by the processing district of processing work piece expose in the working solution chamber with the electrode machining that can be by spark-erosion machining equipment.

Has the advantages that: the groove body of the electric spark processing working liquid groove is provided with the opening and groove body sealing structure, when in use, can be directly matched with a workpiece to be processed through the groove body sealing structure, the part to be processed of the workpiece to be processed is enclosed in the working liquid cavity of the groove body, the opening enables the part to be processed to be exposed in the working liquid cavity, thereby, the working fluid can be added into the working fluid cavity through the electrode (or the other working fluid supply device) of the electric spark processing device, because of the arrangement of the groove body sealing structure, the working fluid only submerges the processing part of the processed workpiece or the range slightly larger than the processing part of the processed workpiece, not only can the electric spark processing be completed by less working fluid, and other parts of the processed workpiece are not polluted, and the problems of low utilization rate of working liquid and part pollution of the existing working liquid tank are solved.

Further, the groove body sealing structure is formed by a sealing piece arranged on the groove body and surrounding the opening. The sealing piece is used as a sealing structure of the groove body, so that the structure is simple, the cost is low, and the sealing piece has the advantage of being replaceable.

Further, the groove body includes a sleeve portion and a flange portion provided at a lower end of the sleeve portion, the working fluid chamber is formed by an inner hole of the sleeve portion, the flange portion extends toward an outer periphery of the sleeve portion, and the sealing member is provided on the flange portion. The groove body adopts a structural form of a sleeve frame flange, so that the groove has the advantages of material saving and simple structure, and meanwhile, the flange provides a mounting position for mounting the sealing element, so that the sealing element is more convenient to mount.

Further, a liquid level gauge is provided on the sleeve portion to indicate the level of the working fluid. The liquid level meter indicates the liquid level of the working liquid, and can be used as a reference for an operator of the electric spark machining so as to ensure the normal operation of the electric spark machining equipment.

Furthermore, the sleeve part is provided with an overflow hole. The overflow hole can guarantee that the working solution intracavity has the working solution of setting for the volume, when guaranteeing that the electric spark machining process goes on smoothly, can play more accurate control working solution quantity, improves the effect of working solution utilization ratio.

Further, an overflow joint is provided at the overflow hole on the sleeve portion. The overflow joint can be connected with a corresponding pipeline, and used working fluid is led to a set position for centralized treatment, so that convenience is provided for the centralized treatment of the working fluid.

Furthermore, the working liquid tank also comprises a base, wherein the base is used for supporting the processed workpiece, and a base sealing structure which is used for being matched with the periphery of the processed area of the processed workpiece in a sealing manner is arranged on the base. The base can guarantee by the sealed of processing work piece bottom when processing the through-hole to the prevention liquid leakage.

Furthermore, a concave structure is arranged on the base at a processed area corresponding to the processed workpiece so as to avoid the processed workpiece. The concave structure can avoid interference on the processing of the processed workpiece.

Furthermore, a liquid level meter is arranged on the tank body to indicate the liquid level of the working liquid.

Furthermore, the working liquid tank also comprises a pressing body used for pressing the tank body on the processed workpiece. The pressing body can reliably press the groove body on the workpiece so as to ensure the sealing effect between the groove body and the workpiece.

Drawings

Fig. 1 is a schematic structural view of an embodiment 1 of an electric discharge machining working fluid bath according to the present invention;

FIG. 2 is a top view of the electro-discharge machining working fluid bath of FIG. 1;

FIG. 3 is a schematic view showing a state of use of the electric discharge machining working fluid bath of FIG. 1;

fig. 4 is a schematic structural view of an electric discharge machining working fluid bath according to embodiment 2 of the present invention;

fig. 5 is a plan view of an electric discharge machining work fluid bath according to embodiment 2 of the present invention;

FIG. 6 is a state diagram of the working fluid bath for electric discharge machining according to embodiment 2 of the present invention in processing a blind hole;

fig. 7 is a state diagram of the electric discharge machining working fluid bath according to embodiment 2 of the present invention when machining a through hole.

In the figure: 101-a groove body, 11-a working liquid cavity, 12-a sleeve part, 13-a flange, 14-a liquid level meter, 15-an overflow joint, 102-a pressing body, 103-a working liquid, 104-a workpiece to be processed, 105-an electrode, 106-a first sealing ring, 107-an electrode chuck, 108-a base, 109-a liquid discharging plug, 120-a second sealing ring, 201-a processing gap and 202-an electroerosion product.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

Example 1 of the electric discharge machining working solution tank:

as shown in fig. 1 to 3, the electric discharge machining working fluid bath includes a bath body 101 and a pressing body 102.

The tank body 101 is provided with a working fluid cavity 11, and the working fluid cavity is used for storing a certain amount of working fluid 103 so as to meet the requirement of electric spark machining. The bottom of the tank body 101 is provided with an opening communicated with the working liquid cavity, a tank body sealing structure is arranged on the outer side surface of the tank body 101 around the opening, and the tank body sealing structure is used for being in sealing fit with the processed workpiece 104 at the periphery of the processed area of the processed workpiece 104, so that after the processed workpiece 104 is installed, the processed area of the processed workpiece 104 forms one side wall of the working liquid cavity 11, in other words, the processed area of the processed workpiece 104 is exposed in the working liquid cavity 11 through the opening, and the electrode 105 of the electric spark machining equipment can correspondingly machine the area. To sum up, the utility model provides a current work cistern waste working solution, pollute by the main thinking of the problem of processing the work piece be: the working liquid tank is integrated with the processed workpiece. Only the processed area of the processed workpiece 104 is arranged in the working liquid chamber 11, so that the requirement on the dosage of the working liquid 103 is reduced, and meanwhile, the area of the processed workpiece 104 which does not need to be processed can be isolated from the working liquid 103, and pollution is avoided.

In the present embodiment, the groove body 101 is specifically configured by the sleeve portion 12 and the flange 13, and the sleeve portion 12 and the flange 13 of the groove body 101 are the same workpiece and different parts. The working fluid chamber 11 is formed by an inner bore of the sleeve portion 12, and a flange 13 is located at a lower end of the sleeve portion 12 and extends toward the outer periphery of the sleeve portion 12. In the present embodiment, the flange 13 is circular, and the sealing structure is formed by a sealing member disposed on the lower side of the flange 13, wherein the sealing member is specifically a sealing ring, which is referred to as a first sealing ring 106, and the first sealing ring 106 is disposed in three ways, nested with each other, and mounted on the flange 13 of the tank 101 in an embedded manner.

The wall of the sleeve portion 12 is provided with a liquid level gauge 14 and an overflow hole, respectively. The liquid level meter 14 is a transparent liquid level meter, and the liquid level of the working liquid 103 in the working liquid cavity 11 can be directly observed and identified by human eyes, so that corresponding operation can be timely performed when the working liquid 103 in the working liquid cavity 11 does not reach the standard. The sleeve part 12 is provided with an overflow joint 15 corresponding to the overflow hole, and the overflow joint 15 is a threaded joint and can be used for connecting a corresponding pipeline so as to intensively guide and process the working fluid flowing out of the working fluid cavity 11.

In this embodiment, the pressing body 102 is specifically a pressing ring, and the pressing ring is sleeved on the sleeve portion 12 of the slot body 101 and pressed on the flange 13 of the slot body 101, so that the sealing fit between the slot body 101 and the workpiece 104 to be processed can be realized.

As shown in fig. 3, the electric discharge machining working fluid bath of the present embodiment can be used for machining blind holes in the workpiece 104 to be machined. The working process is as follows: an internal flushing type cavity cylindrical electrode 105 is clamped on an electrode chuck 107, working liquid 103 enters a working liquid cavity 11 of a groove body 101 through a hollow cavity of the electrode 105, a liquid level meter 14 is arranged on the side wall of a sleeve part 12 and displays the liquid level height of the working liquid 103 in the groove body 101, a pressing body 102 is arranged on a flange 13 of the groove body 101, the flange 13 ensures the stability of the sleeve part 12 and is placed on a processed workpiece 104, a first sealing ring 106 is ensured to be in close contact with the processed workpiece 104, the working liquid 103 is ensured not to overflow and leak, an overflow joint 15 is used for connecting a liquid outlet pipe, the sleeve part 12 of the groove body 101 ensures that the working liquid 103 is stored in a processing position and controls the working liquid 103 to overflow and is higher than an overflow hole, in the processing process, a machining gap 201 is formed between the electrode 105 and a machined part of the machined workpiece, and an electric corrosion product 202 generated by machining is carried away by the working fluid from the machining gap 201 and finally can be discharged through the overflow hole.

In the above embodiment, based on the basic function of the tank body, that is, storing a set amount of working fluid, and satisfying the requirement that the electrode of the electric discharge machining equipment can enter and reach the workpiece to be machined, it can be known that the shape of the tank body can be any shape in addition to the above shape; the liquid level meter can also adopt any other liquid level meter, and the function of the liquid level meter is only reading the liquid level; besides the sealing ring, the groove body sealing structure can also be directly formed by the lower side surface of the flange. The pressing body can be in other shapes besides annular, and can adopt structures such as a pressing plate and the like commonly used in machining besides a counterweight principle. The overflow hole can also be omitted, and in this case, the working fluid in the working fluid cavity can be directly discharged from the upper end opening of the working fluid cavity and then collected by other modes.

Example 2 of the electric discharge machining working fluid bath:

as shown in fig. 4 to 7, the difference between the present embodiment and embodiment 1 is only that the electric discharge machining working fluid tank of the present embodiment includes, in addition to the tank body and the pressing body, a base 108, the base 108 is provided with a concave structure at a position corresponding to a machined area of the workpiece 104 to avoid the workpiece 104, meanwhile, a base sealing structure for sealing and matching with the periphery of the machined area of the workpiece 104 is provided on the base 108, a fluid outlet and a matched fluid outlet plug 109 are provided on the base 108, and the base sealing structure employs a second sealing ring 120. As shown in fig. 6-7, with the structure of this embodiment, the electric spark machining working fluid tank of the present invention can be used for not only machining the blind hole of the workpiece, but also machining the through hole of the workpiece, and finally, the liquid discharging plug 109 on the base can be detached to discharge the working fluid from the liquid discharging port at the bottom of the base when machining the through hole.

Based on embodiment 2 of the electric discharge machining working fluid bath, in other embodiments, the recessed portion on the base can be omitted. Meanwhile, a liquid discharging port on the base and a matched liquid discharging plug can also be omitted.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric discharge machining working fluid bath, comprising:

2. The electrical discharge machining working fluid bath as claimed in claim 1, wherein the groove body sealing structure is constituted by a sealing member provided on the groove body around the opening.

3. The electric discharge machining working liquid groove as claimed in claim 2, wherein the groove body includes a sleeve portion and a flange portion provided at a lower end of the sleeve portion, the working liquid chamber is formed by an inner hole of the sleeve portion, the flange portion extends toward an outer periphery of the sleeve portion, and the sealing member is provided on the flange portion.

4. The electrical discharge machining working fluid bath according to claim 3, wherein a fluid level gauge is provided on the sleeve portion to indicate a fluid level of the working fluid.

5. The electric discharge machining working fluid bath according to claim 3, wherein the sleeve portion is provided with an overflow hole.

6. The electric discharge machining working fluid bath according to claim 5, wherein an overflow joint is provided at the overflow hole on the sleeve portion.

7. The electric discharge machining working solution tank as claimed in any one of claims 1 to 6, characterized in that the working solution tank further comprises a base for supporting the workpiece to be machined, and a base sealing structure provided on the base for sealing engagement with the periphery of the area to be machined of the workpiece to be machined.

8. The electric discharge machining working fluid bath according to claim 7, wherein a depressed structure is provided on the base at a machined region corresponding to the machined workpiece to avoid the machined workpiece.

9. The electrical discharge machining working fluid bath of claim 1, wherein a level gauge is provided on the bath body to indicate a level of the working fluid.

10. The electric discharge machining working solution tank as claimed in any one of claims 1 to 6, characterized in that the working solution tank further comprises a pressing body for pressing the tank body against the workpiece to be machined.