CN220761286U - Structure of electrode connection part for electric spark machining enclosed integral impeller - Google Patents
Structure of electrode connection part for electric spark machining enclosed integral impeller Download PDFInfo
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- CN220761286U CN220761286U CN202322456736.7U CN202322456736U CN220761286U CN 220761286 U CN220761286 U CN 220761286U CN 202322456736 U CN202322456736 U CN 202322456736U CN 220761286 U CN220761286 U CN 220761286U
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- positioning
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- 238000003754 machining Methods 0.000 title claims abstract description 37
- 238000010892 electric spark Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000009760 electrical discharge machining Methods 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 3
- 238000005422 blasting Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The utility model discloses an electric spark machining closed integral impeller group electrode connecting part structure, which comprises: connecting a clamp main body; the positioning plate is fixedly connected to the bottom of the connecting clamp body, one side of the positioning plate is provided with a V-shaped surface, and two inclined surfaces of the V-shaped surface are symmetrically arranged on a YOZ plane of a space rectangular coordinate system with the center position of the bottom surface of the positioning plate as a coordinate center O, the width direction as an X axis, the length direction as a Y axis and the height direction as a Z axis; the fixing mechanism comprises a first fixing piece and a second fixing piece, the first fixing piece is arranged at the top of the connecting clamp body, the second fixing piece is arranged on the side face of the connecting clamp body, and the connecting clamp body is fixedly connected with the processing electrode through the first fixing piece and the second fixing piece. The utility model has accurate positioning and stable connection of the processing electrode and the positioning device, and solves the problem that the electrode falls off in the middle of processing due to the electrode knife lifting action and the discharge blasting force in the processing process of the traditional electrode.
Description
Technical Field
The utility model relates to the technical field of aviation and aerospace engine manufacturing, in particular to an electric spark machining closed type integral impeller group electrode connecting part structure.
Background
The impeller is one of key parts of the aviation and aerospace engine, the blade of the impeller is a large torsion free-form surface, and the requirement on the machining precision of parts is high; the working conditions are high-temperature, high-pressure and high-speed rotation environments, and higher requirements are also put on the materials of parts, and the parts are made of difficult-to-process materials such as high-temperature alloy.
The traditional processing method has many problems that the processing precision is low, the cutter abrasion is serious, the cost is high and the like which are difficult to overcome. The electric spark machining belongs to non-contact machining, eliminates machining errors caused by contact stress and machining vibration, and is widely applied to the field of high-precision machining; and secondly, any conductive material can be processed by electric spark processing, and the method is not limited by the hardness of the material, so that the method is widely applied to the fields of aviation and aerospace. However, the electric discharge machining has a problem of low machining efficiency. In order to improve the processing efficiency, a group electrode processing mode is adopted. How to construct the connection part of the group electrode of the electric discharge machining impeller takes the following aspects into consideration.
Firstly, when the closed integral impeller is processed by electric spark, the problems of inconsistent thickness and uneven distribution of processed blades and the like often occur, and the precision of parts required in the field of aviation and aerospace manufacturing can not be achieved far. The main reason for these problems is that the positioning accuracy of the rough and finish machining of the electrode cannot meet the requirements, and therefore, the positioning of the electrode on the fixture must be accurate.
Secondly, the imperfect connection mode of the electrode and the chuck can lead to the electrode to loose and fall off from the fixture due to the cutter lifting movement and the discharge blasting force. One electrode can drop to scrap the whole workpiece, so that the production efficiency is seriously reduced, and the production cost is increased. The conventional electrode connection member cannot meet the demand of the electric discharge machining for the fastening connection, and thus, the fastening function of the electrode is important to consider when designing the connection portion of the electrode.
Aiming at the problems, in order to ensure the requirements of positioning precision and connection strength between the electrode and the clamp, the utility model provides a novel electric spark machining closed type integral impeller group electrode connecting member, which improves the machining efficiency and saves the production cost.
Disclosure of Invention
The utility model aims to provide an electric spark machining closed integral impeller group electrode connecting part structure so as to solve the problems in the prior art.
In order to achieve the above object, the present utility model provides the following solutions: the utility model provides an electric spark machining closed integral impeller group electrode connecting part structure, which comprises:
connecting a clamp main body;
the positioning plate is fixedly connected to the bottom of the connecting clamp main body, a V-shaped surface is arranged on one side of the positioning plate, and two inclined planes of the V-shaped surface are symmetrically arranged on a YOZ plane of a space rectangular coordinate system with the central position of the bottom surface of the positioning plate as a coordinate center O, the width direction as an X axis, the length direction as a Y axis and the height direction as a Z axis;
the fixing mechanism comprises a first fixing piece and a second fixing piece, the first fixing piece is arranged at the top of the connecting clamp main body, the second fixing piece is arranged on the side face of the connecting clamp main body, and the connecting clamp main body is fixedly connected with the processing electrode through the first fixing piece and the second fixing piece;
the top surface of the positioning plate is a positioning surface, the V-shaped surface is matched with the shape of the processing electrode, and the positioning surface and the V-shaped surface are used for limiting the degree of freedom of the processing electrode in six directions.
According to the electrode connecting part structure of the electric spark machining closed type integral impeller group, the first fixing piece comprises a stud fixedly connected to the top of the connecting clamp main body, a nut is connected to the stud in a threaded mode, and the machining electrode is fixedly connected with the top of the connecting clamp main body through the stud and the nut.
According to the structure of the electrode connecting part of the electric spark machining closed type integral impeller group, a saw tooth locking washer is arranged between the nut and the machining electrode.
According to the electrode connecting part structure of the electric spark machining closed type integral impeller group, the second fixing piece comprises a positioning bolt, a threaded hole is formed in the machining electrode, the positioning bolt is in threaded connection with the threaded hole, and the positioning bolt is in butt joint with the side face of the connecting clamp body.
According to the structure of the electrode connecting part of the electric spark machining closed type integral impeller group, the connecting clamp body is of a square structure, and the side length of the connecting clamp body is equal to the width of the positioning plate.
The utility model discloses the following technical effects:
according to the utility model, the V-shaped surface on the positioning plate, which is matched with the shape of the processing electrode, is used for limiting the degree of freedom of the processing electrode in six directions by taking the top surface of the positioning plate as a positioning surface, and the first fixing piece and the second fixing piece are used for fixing the electrode and realizing the limiting at the same time, so that the stability of the installation of the processing electrode and the accuracy of positioning are ensured.
The utility model has accurate positioning, and the connection between the processing electrode and the positioning device is stable, thus solving the problem that the electrode falls off in the middle of processing due to the electrode knife lifting action and the discharge blasting force in the processing process of the traditional electrode, greatly reducing the rejection rate of workpieces and saving the production cost.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the electrode connection of the electric spark machining closed integral impeller group.
1, connecting a clamp main body; 2. a positioning plate; 3. a stud; 4. v-shaped surface.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1, the present utility model provides an electric discharge machining closed integral impeller group electrode connection structure, comprising:
a connecting jig main body 1;
the positioning plate 2 is fixedly connected to the bottom of the connecting clamp body 1, a V-shaped surface 4 is arranged on one side of the positioning plate 2, and two inclined planes of the V-shaped surface 4 are symmetrically arranged about a YOZ plane of a space rectangular coordinate system with the central position of the bottom surface of the positioning plate 2 as a coordinate center O, the width direction as an X axis, the length direction as a Y axis and the height direction as a Z axis; the V-shaped surface 4 greatly increases the contact area between parts, so that the positioning is more stable; the V-shaped structure formed by the double inclined planes has good neutrality, so that the electrode is not easy to deviate, and the installation is convenient;
the fixing mechanism comprises a first fixing piece and a second fixing piece, the first fixing piece is arranged at the top of the connecting clamp body 1, the second fixing piece is arranged on the side face of the connecting clamp body 1, and the connecting clamp body 1 is fixedly connected with the processing electrode through the first fixing piece and the second fixing piece;
the top surface of the positioning plate 2 is a positioning surface, the V-shaped surface 4 is matched with the shape of the processing electrode, and the positioning surface and the V-shaped surface 4 are used for limiting the degree of freedom of the processing electrode in six directions.
According to the utility model, the V-shaped surface 4 which is matched with the shape of the processing electrode on the positioning plate 2 is used for limiting the degree of freedom of the processing electrode in six directions, and the first fixing piece and the second fixing piece are used for fixing the electrode and realizing the limiting at the same time, so that the stability of the installation of the processing electrode and the positioning accuracy are ensured.
According to a further optimized scheme, the first fixing piece comprises a stud 3 fixedly connected to the top of the connecting clamp body 1, a nut is connected to the stud 3 in a threaded mode, and the machining electrode is fixedly connected with the top of the connecting clamp body 1 through the stud 3 and the nut.
Further optimizing scheme is that the sawtooth locking washer is arranged between the nut and the processing electrode. The nut, the serrated lock washer, the positioning bolt and the machining electrode are not shown in the drawings of the specification.
In the past, a spring washer is often used in engineering, and the spring washer increases the axial tension between the connecting pairs by depending on the reaction force of the spring washer after being screwed up so as to increase the friction force to play a role in preventing loosening, but the service life of the spring washer is shorter, and especially in the electric spark processing, the spring washer is often influenced by the cutter lifting action and the discharging explosion force of an electrode, so that the spring washer is more easy to loosen and deform, and the original spring washer is improved into a saw tooth locking washer with better locking effect. The zigzag locking washer is provided with a plurality of zigzag bulges uniformly distributed along the circumferential direction, the protruding parts of the zigzag locking washer can bite the surfaces of the fastener and the connected parts, the fastening friction resistance is increased, and the stability requirement of the device in the actual processing process can be met to a great extent.
Further optimizing scheme, the second mounting includes positioning bolt, has seted up the screw hole on the processing electrode, positioning bolt threaded connection at threaded hole, and positioning bolt and the side butt of connecting jig main part 1.
Further optimizing scheme, connecting jig main part 1 is square structure, and connecting jig main part 1's length of side equals with locating plate 2's width.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (5)
1. The utility model provides an electric spark machining closed whole impeller crowd electrode connection portion structure which characterized in that includes:
a connecting clamp body (1);
the positioning plate (2) is fixedly connected to the bottom of the connecting clamp main body (1), a V-shaped surface (4) is arranged on one side of the positioning plate (2), and two inclined planes of the V-shaped surface (4) are symmetrically arranged on a YOZ plane of a space rectangular coordinate system by taking the central position of the bottom surface of the positioning plate (2) as a coordinate center O, the width direction as an X axis, the length direction as a Y axis and the height direction as a Z axis;
the fixing mechanism comprises a first fixing piece and a second fixing piece, the first fixing piece is arranged at the top of the connecting clamp main body (1), the second fixing piece is arranged on the side face of the connecting clamp main body (1), and the connecting clamp main body (1) is fixedly connected with the processing electrode through the first fixing piece and the second fixing piece;
the top surface of the positioning plate (2) is a positioning surface, the V-shaped surface (4) is matched with the shape of the processing electrode, and the positioning surface and the V-shaped surface (4) are used for limiting the degree of freedom of the processing electrode in six directions.
2. The spark-erosion machining closed type integral impeller group electrode connection structure according to claim 1, wherein: the first fixing piece comprises a stud (3) fixedly connected to the top of the connecting clamp main body (1), a nut is connected to the stud (3) in a threaded mode, and the machining electrode is fixedly connected with the top of the connecting clamp main body (1) through the stud (3) and the nut.
3. The spark-erosion machining closed type integral impeller group electrode connection structure according to claim 2, wherein: and a saw tooth locking washer is arranged between the nut and the processing electrode.
4. The spark-erosion machining closed type integral impeller group electrode connection structure according to claim 1, wherein: the second fixing piece comprises a positioning bolt, a threaded hole is formed in the machining electrode, the positioning bolt is in threaded connection with the threaded hole, and the positioning bolt is in butt joint with the side face of the connecting clamp main body (1).
5. The spark-erosion machining closed type integral impeller group electrode connection structure according to claim 1, wherein: the connecting clamp body (1) is of a cube structure, and the side length of the connecting clamp body (1) is equal to the width of the locating plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322456736.7U CN220761286U (en) | 2023-09-11 | 2023-09-11 | Structure of electrode connection part for electric spark machining enclosed integral impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322456736.7U CN220761286U (en) | 2023-09-11 | 2023-09-11 | Structure of electrode connection part for electric spark machining enclosed integral impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220761286U true CN220761286U (en) | 2024-04-12 |
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ID=90600491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322456736.7U Active CN220761286U (en) | 2023-09-11 | 2023-09-11 | Structure of electrode connection part for electric spark machining enclosed integral impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220761286U (en) |
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2023
- 2023-09-11 CN CN202322456736.7U patent/CN220761286U/en active Active
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