CN219900551U - Electrolytic machining device - Google Patents

Abstract

The present disclosure provides an electrolytic processing device, which includes: a lower housing including a hollow internal space, and an electrolyte circulation channel is formed through the internal space; an upper housing, the upper housing is fixed to the lower housing; and a processing tool, at least partially located within the interior space of the lower housing, and at least partially located between the lower housing and the upper housing, and The upper end of the lower housing is sealed by the processing tool.

Description

Electrolytic machining equipment

Technical field

The present disclosure relates to an electrolytic machining device.

Background technique

When processing internal splines in the prior art, broaching or milling is generally used. However, these processing methods all cause a certain loss of processing tools. After processing a certain number of internal splines, the processing tools will need to be replaced.

Based on this, electrolytic machining of internal splines is an alternative method that can replace machining processes such as broaching or milling. Chinese invention patent CN111375850B discloses a multi-station synchronous precision electrolytic forming processing device and method for involute internal splines, which uses electrolytic machining technology to process internal splines through axial feed.

However, in this processing method, the number of teeth of the electrolytic tool needs to be the same as the number of teeth of the internal spline, and during electrochemical processing, a reasonable gap needs to be maintained between the electrolytic tool and the internal spline. When the gap is large, the processing will be reduced. Speed; when the gap is small, it is not conducive to the flow of electrolyte and cannot take away debris, etc., which will affect the processing quality and speed.

Utility model content

In order to solve one of the above technical problems, the present disclosure provides an electrochemical processing device.

According to one aspect of the present disclosure, an electrochemical machining device is provided, which includes:

Lower housing, the lower housing includes a hollow internal space, and an electrolyte circulation channel is formed through the internal space; the inlet of the electrolyte circulation channel is located at the lower end of the lower housing; the electrolyte circulation channel The outlet is located on the side wall of the lower housing and close to the upper end of the lower housing;

an upper housing fixed to the lower housing; and

A processing tool, at least part of the processing tool is located in the internal space of the lower housing, and at least part of the processing tool is located between the lower housing and the upper housing, and is sealed by the processing tool. The upper end of the lower housing;

Wherein, the outer peripheral surface of the processing tool is spaced apart from the inner wall surface of the workpiece to be processed, and the space is greater than or equal to 0.2 mm.

According to the electrochemical processing device of at least one embodiment of the present disclosure, an outer flange is formed at a lower end of the lower housing.

According to the electrochemical machining device according to at least one embodiment of the present disclosure, the internal space includes a step surface, and the workpiece to be processed is disposed on the step surface.

According to an electrochemical machining device according to at least one embodiment of the present disclosure, the lower housing includes a first central hole and a second central hole, wherein the first central hole has a first diameter and the second central hole has a second diameter, and the The first diameter is smaller than the second diameter, and the first central hole is located below the second central hole.

According to the electrochemical machining device of at least one embodiment of the present disclosure, the upper housing includes an upper central hole, and a diameter of the upper central hole is the same as the second diameter.

According to an electrochemical machining device according to at least one embodiment of the present disclosure, the machining tool includes:

a machining tool, a lower end of which includes a toothed portion; and

A sealing member is provided on the processing tool so that the sealing member is located between the upper housing and the lower housing.

According to the electrochemical machining device of at least one embodiment of the present disclosure, the seal includes:

a plate-shaped part having a central hole, the processing tool being located in the central hole of the plate-shaped part, and the plate-shaped part being located between the upper housing and the lower housing; and

A cylindrical part is provided on the outer peripheral surface of the plate-shaped part, and the upper end of the cylindrical part is higher than the upper surface of the plate-shaped part, and the lower end of the cylindrical part is lower than the upper surface of the plate-shaped part. The lower surface of the plate-shaped part; wherein the upper end of the cylindrical part is in contact with the upper housing, and the lower end of the cylindrical part is in contact with the lower housing.

Description of the drawings

The accompanying drawings illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure, and are included to provide a further understanding of the disclosure, and are incorporated in and constitute part of this specification. part of the instruction manual.

FIG. 1 is a schematic structural diagram of an electrochemical machining device according to an embodiment of the present disclosure.

2 and 3 are cross-sectional views from different angles of an electrochemical machining device according to an embodiment of the present disclosure.

Figure 4 is a schematic structural diagram of a processing tool according to an embodiment of the present disclosure.

The specific reference signs in the figure are:

100 Electrolytic Processing Device

110 lower shell

111 first center hole

112 second center hole

113 steps

114 positioning holes

120 upper shell

121 upper center hole

130 processing tools

131 machining tools

132 seals

1321 plate-shaped part

1322Tubular part.

Detailed ways

The present disclosure will be described in further detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific implementations described here are only used to explain the relevant content, but are not intended to limit the present disclosure. It should also be noted that, for convenience of description, only parts related to the present disclosure are shown in the drawings.

It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings and embodiments.

Unless otherwise specified, the illustrated exemplary embodiments/examples are to be understood as exemplary features providing various details of some manner in which the technical concepts of the present disclosure may be implemented in practice. Therefore, unless otherwise stated, features of various embodiments/embodiments may be additionally combined, separated, interchanged and/or rearranged without departing from the technical concept of the present disclosure.

The use of cross-hatching and/or shading in drawings is often used to make boundaries between adjacent parts clear. As such, unless stated otherwise, the presence or absence of cross-hatching or shading does not convey or indicate any knowledge of the specific materials, material properties, dimensions, proportions, commonalities between the components shown and/or any other characteristics of the components, Any preferences or requirements for attributes, properties, etc. Furthermore, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially concurrently or in the reverse order of that described. In addition, the same reference numerals represent the same components.

When an element is referred to as being "on," "on," "connected to" or "coupled to" another element, it can be directly on, directly connected to, or directly connected to the other element. Either directly coupled to said other component, or intervening components may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

For descriptive purposes, the present disclosure may use terms such as “under,” “under,” “under,” “under,” “over,” “on,” “on.” Spatially relative terms, such as "on", "higher" and "side (e.g., as in "sidewall"), are used to describe one component in relation to another (other) component as illustrated in the figures Relationship. In addition to the orientation depicted in the figures, spatially relative terms are intended to encompass various orientations of the device in use, operation, and/or manufacture. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" may encompass both orientations "above" and "below." Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "includes" and variations thereof are used in this specification, it is stated that the stated features, integers, steps, operations, parts, components and/or groups thereof are present but not excluded. One or more other features, integers, steps, operations, parts, components and/or groups thereof are present or appended. It is also noted that, as used herein, the terms "substantially," "approximately," and other similar terms are used as terms of approximation and not as terms of degree, and as such, they are used to explain what one of ordinary skill in the art would recognize. Inherent deviations from measured, calculated and/or supplied values.

FIG. 1 is a schematic structural diagram of an electrochemical machining device 100 according to an embodiment of the present disclosure. 2 and 3 are cross-sectional views from different angles of an electrochemical machining device according to an embodiment of the present disclosure.

As shown in FIGS. 1 to 3 , the electrochemical processing device 100 of the present disclosure may include a lower housing 110 , an upper housing 120 , a processing tool 130 and other components.

Since the lower housing 110 needs to be driven to rotate, it is formed into a cylindrical or substantially cylindrical component, and a central hole is formed along the axis direction of the central axis of the lower housing 110 .

In a preferred embodiment, the central hole includes a first central hole 111 and a second central hole 112, wherein the first central hole 111 has a first diameter and the second central hole 112 has a second diameter, so The first diameter is smaller than the second diameter, that is to say, a center hole structure with unequal diameters is formed inside the lower housing 110 .

Positionally speaking, the first central hole 111 is located below the second central hole 112. Correspondingly, the lower end of the second central hole 112 is connected and communicated with the upper end of the first central hole 111, so that in A step surface 113 is formed at the connection between the first center hole 111 and the second center hole 112. At this time, the step surface 113 is formed as a positioning surface. The workpiece to be processed can be placed on the step surface 113 for accurate positioning. , and then process the workpiece to be processed.

A positioning hole 114 is provided on the side wall of the lower housing 110. Positionally speaking, the positioning hole 114 is higher than the step surface 113. When positioning parts (such as screwing in positioning screws) are set in the positioning holes 114, Or inserting positioning pins), etc., the workpiece to be processed is positioned through positioning parts (including positioning screws or positioning pins).

In the present disclosure, the lower housing 110 includes a hollow internal space, and an electrolyte circulation channel is formed through the internal space; more specifically, the inlet of the electrolyte circulation channel is located at the lower end of the lower housing 110, For example, the lower end of the first central hole 111 is formed as the inlet of the above-mentioned electrolyte circulation channel.

The outlet of the electrolyte circulation channel is located on the side wall of the lower housing 110 and is close to the upper end of the lower housing 110 . At this time, a through hole can be formed on the side wall of the lower housing 110 and an outlet of the electrolyte flow channel can be formed through the through hole. At this time, the through hole can communicate with the second central hole 112 .

An outer flange is formed at the lower end of the lower housing 110 , whereby the lower housing 110 can be fixed to a rotatable component of the machine tool through the outer flange, so that the lower housing 110 can be driven to rotate.

The upper housing 120 is fixed to the lower housing 110; in a specific embodiment, an outer flange is also formed on the upper end of the lower housing 110. Correspondingly, the upper housing 120 is formed with The outer flange of the upper end of the lower housing 110 is a cylinder with the same diameter, and the upper housing 120 is fixed to the lower housing 110 through fasteners such as screws.

At least part of the processing tool 130 is located in the internal space of the lower housing 110, so that the inner wall surface of the workpiece to be processed can be electrolytically processed through the processing tool 130; and, at least part of the processing tool 130 is located in the inner space of the lower housing 110. between the lower housing 110 and the upper housing 120 , and the upper end of the lower housing 110 is sealed by the processing tool 130 .

In one embodiment, the upper housing 120 includes an upper central hole 121 , and the diameter of the upper central hole 121 is the same as the second diameter, whereby the processing tool 130 can move in a direction perpendicular to its axial direction. Move, thereby making the offset distance value between the axis of the processing tool 130 and the axis of the upper housing 120 and/or the lower housing 110 variable, so that the same processing tool 130 can process internal splines with different inner diameters, This makes the electrochemical processing device have higher applicability.

In a preferred embodiment, the processing tool 130 includes components such as a processing tool 131 and a seal 132 .

The processing tool 131 is made of conductive material and can be formed as a cathode of an electrolytic processing device. In one embodiment, the processing tool 131 is formed into a cylindrical shape as a whole, and includes a tooth-shaped portion at the lower end of the processing tool 131 . The tooth-shaped portion can form the lower end of the processing tool 131 into a substantially gear shape. shape. In a preferred embodiment, the lower end of the processing tool 131 may include nine toothed portions arranged along its axial direction, and these toothed portions are evenly distributed on the circumferential surface of the processing tool 131 .

In terms of length, the length (axial direction) of the toothed portion is greater than or equal to or slightly greater than the length (axial direction) of the internal spline to be processed, so that when the electrolytic machining device of the present disclosure is used, it can process The internal spline is formed at one time, which improves the processing efficiency of the workpiece to be processed.

The sealing member 132 is provided on the processing tool 131 . On the one hand, the sealing member 132 can be fixed with the processing tool 131 and rotate together with the processing tool 131 . On the other hand, the sealing member 132 may not be fixed to the processing tool. When the processing tool 131 rotates, the sealing member 132 may not rotate.

In a preferred embodiment, the seal 132 is made of an insulating material, so that the lower housing 110 of the electrochemical processing device of the present disclosure can be formed as an anode. In this case, the lower housing 110 is made of a conductive material and is Connected to the positive electrode of the power source, whereby when the workpiece to be processed is placed on the lower housing 110, the workpiece to be processed also forms an anode. Accordingly, the negative pole of the power supply is connected to the machining tool 131, whereby the machining tool 131 forms a cathode.

In the present disclosure, the seal 132 is located between the upper housing 120 and the lower housing 110 , thereby, on the one hand, an insulating structure can be formed between the processing tool 131 and the workpiece to be processed, and on the other hand, The sealing member 132 can also seal the upper end of the lower housing 110 , that is, the upper end of the second central hole 112 .

Figure 4 is a schematic structural diagram of a processing tool according to an embodiment of the present disclosure.

In a preferred embodiment, as shown in FIG. 4 , the seal 132 includes: a plate portion 1321 and a cylindrical portion 1322 and other components.

The plate-shaped part 1321 has a central hole, and the processing tool 131 is located in the center hole of the plate-shaped part 1321. In the present disclosure, the outer diameter of the processing tool 131 is smaller than the second center hole 112 or the upper center hole 121 The diameter of and the upper housing 120 slide.

On the other hand, the plate-shaped portion 1321 is located between the upper housing 120 and the lower housing 110; when the processing tool 131 rotates and the sealing member 132 also rotates, the sealing member 132 also rotates. It is in sliding contact with the upper end of the lower housing 110 and the lower end of the upper housing 120 .

The cylindrical part 1322 is provided on the outer peripheral surface of the plate-shaped part 1321, and the upper end of the cylindrical part 1322 is higher than the upper surface of the plate-shaped part 1321, and the lower end of the cylindrical part 1322 is lower than the upper surface of the plate-shaped part 1321. The lower surface of the plate-shaped part 1321; preferably, the outer peripheral surface of the plate-shaped part 1321 is connected to the middle position of the cylindrical part 1322.

The upper end of the cylindrical part 1322 is in contact with the upper housing 120 , and the lower end of the cylindrical part 1322 is in contact with the lower housing 110 ; correspondingly, considering the possible translation and rotation of the cylindrical part 1322 , in the present disclosure, an annular cavity structure can be formed between the lower housing 110 and the upper housing 120, and the cylindrical portion 1322 is slidably disposed in the annular cavity structure.

Therefore, on the one hand, an accommodating space is formed between the cylindrical part 1322, the plate-shaped part 1321 and the lower housing 110, and the accommodating space enables the electrolyte leaking from the vicinity of the plate-shaped part 1321 to be stored in the accommodating space. It will not leak to other areas; and the contact between the upper end of the cylindrical portion 1322 and the upper housing 120 can also play a certain role in positioning and supporting the processing tool.

In one embodiment, the outer circumferential surface of the processing tool 131 is spaced apart from the inner wall surface of the workpiece to be processed, and the spacing is greater than or equal to 0.2 mm, thereby enabling the processing tool 131 and the workpiece to be processed to be separated when processing the workpiece to be processed. The gap between them is adjusted to an appropriate value.

When the electrochemical machining device of the present disclosure is in use, it can be fixed on a machine tool, and then the position of the processing tool 131 is adjusted so that the gap between the processing tool 131 and the inner surface of the workpiece to be processed is a preset value (or in other words, the gap between the processing tool 131 and the inner surface of the workpiece to be processed is a preset value). The distance between the axis and the axis of the workpiece to be processed is a predetermined value), then the processing tool 131 can be driven to rotate, and the lower housing 110 can also be driven to rotate; thereby the processing tool 131 in the lower housing 110 can be driven to rotate. The workpiece is processed and formed in one step.

Moreover, the electrolyte circulation channel of the electrolytic machining device of the present disclosure flows smoothly, and there is no need to install a high-pressure pump, and accordingly there is no need to install various sealing joints on the pipeline.

Those skilled in the art should know that different rotational speed ratios between the processing tool 131 and the workpiece to be processed can enable the same processing tool 131 to process involute teeth with different numbers of teeth, thereby improving the use of the electrolytic machining device of the present disclosure. Number of scenes.

In the description of this specification, reference to the description of the terms "one embodiment/way", "some embodiments/way", "example", "specific example", or "some examples" etc. is meant to be in conjunction with the description of the embodiment/way. or examples describe specific features, structures, materials, or characteristics that are included in at least one embodiment/mode or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment/mode or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, those skilled in the art may combine and combine the different embodiments/ways or examples and the features of different embodiments/ways or examples described in this specification unless they are inconsistent with each other.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

Those skilled in the art should understand that the above-mentioned embodiments are only for clearly illustrating the present disclosure, but are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims (7)

1. An electrolytic processing device, comprising:

a lower case including a hollow inner space, and forming an electrolyte circulation passage through the inner space; an inlet of the electrolyte circulation channel is positioned at the lower end of the lower shell; the outlet of the electrolyte circulation channel is positioned on the side wall of the lower shell and is close to the upper end of the lower shell;

an upper housing fixed to the lower housing; and

a machining tool at least partially located within the interior space of the lower housing and at least partially located between the lower housing and the upper housing and sealing an upper end of the lower housing with the machining tool;

the outer peripheral surface of the processing cutter of the processing tool is arranged at intervals with the inner wall surface of the workpiece to be processed, and the intervals are more than or equal to 0.2mm.

2. The electrochemical machining apparatus of claim 1, wherein the lower housing is formed at a lower end thereof with an outer flange.

3. The electrolytic processing apparatus according to claim 1, wherein the inner space includes a stepped surface on which the workpiece to be processed is provided.

4. The electrochemical machining apparatus of claim 1, wherein the lower housing includes a first central bore and a second central bore, wherein the first central bore has a first diameter, the second central bore has a second diameter, the first diameter is less than the second diameter, and the first central bore is located below the second central bore.

5. The electrochemical machining apparatus of claim 4, wherein said upper housing includes an upper central bore having a diameter that is the same as said second diameter.

6. The electrolytic processing apparatus according to claim 1, wherein the processing tool comprises:

a machining tool, the lower end of which includes a tooth-shaped portion; and

and a seal member provided to the machining tool such that the seal member is located between the upper and lower housings.

7. The electrochemical machining apparatus of claim 6, wherein said seal comprises:

a plate-like portion having a center hole, the machining tool being located within the center hole of the plate-like portion, and the plate-like portion being located between the upper and lower housings; and

a tubular portion provided on an outer peripheral surface of the plate-like portion, an upper end of the tubular portion being higher than an upper surface of the plate-like portion, and a lower end of the tubular portion being lower than a lower surface of the plate-like portion; wherein an upper end of the cylindrical portion is in contact with the upper housing, and a lower end of the cylindrical portion is in contact with the lower housing.