Sliding plate connecting structure for immersed wire cut electrical discharge machining tool

Abstract

The utility model provides a sliding plate connecting structure for an immersed type wire cut electrical discharge machining tool, which comprises a connecting flange, a flange cushion block and a flange mounting plate, the flange mounting plate is mounted on a carriage component, the flange cushion block is mounted on the flange mounting plate, the connecting flange is mounted on the flange cushion block, the connecting flange is inserted into a shaft ring, and the flange mounting plate is mounted on the flange cushion block. The connecting flange and the shaft ring are coaxial and are in clearance fit, the moving shaft penetrates through the connecting flange, the flange cushion block and the flange mounting plate and then is connected with the carriage assembly, and the moving shaft and the connecting flange are coaxial and are in clearance fit. According to the scheme, the movement shaft can be prevented from being bent under the action of pressure, the machining precision of a machine tool adopting the connecting flange mechanism cannot be reduced, and the machine tool has better cost performance compared with a machine tool adopting an original sliding plate mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spark wire cutting processing, in particular to a slide plate connection structure for an immersed electric spark wire cutting machine tool. Background Art

[0002] Wire EDM is a processing method that uses an electrode wire to machine a corresponding shaped hole on a workpiece. During processing, a pulse power supply and working fluid need to be applied between the electrode wire and the workpiece. Through the relative servo motion between the electrode wire and the workpiece, a controllable electric spark discharge is generated between the electrode wire and the workpiece to achieve the goal of etching the workpiece.

[0003] Among EDM machines, there is an immersion EDM wire cutting machine, where the workpiece is immersed in the working fluid and the working fluid is used as the insulating medium for EDM. The immersion EDM wire cutting machine needs to use a special working fluid tank to hold the machining fluid, and a slide mechanism is configured in the working fluid tank to allow the motion axis to move left and right, such as Figure 1 The schematic diagram of the skateboard mechanism shown in FIG. 1 shows that the existing skateboard structure is composed of a skateboard assembly, a frame assembly, a motion shaft, etc. The skateboard body of the skateboard assembly is installed on the frame assembly, and the motion shaft drives the skateboard body to slide left and right. Figure 2 The force diagram of the skateboard mechanism shown in the figure shows that when the motion shaft drives the skateboard body to move left and right, the friction resistance between the skateboard body and the frame will be transmitted to the motion shaft through the skateboard body. That is, when the skateboard body moves left and right, the skateboard body is subjected to the friction resistance F1 of the frame, and the skateboard body applies pressure F2 to the motion shaft through the shaft ring. Figure 2 , Figure 5 As shown, the moving axis will bend under the action of pressure F2, which will reduce the processing accuracy.

[0004] In view of this, how to solve the problem that when the slide plate mechanism in the existing immersed electric spark wire cutting machine is working, the slide plate is exerted on the moving shaft by the friction resistance of the frame to form pressure, so that the moving shaft bends under the action of pressure and reduces the processing accuracy, has become the subject to be studied and solved by the present utility model. Utility Model Content

[0005] The utility model aims to provide a slide plate connection structure for an immersed wire-cut electric spark machine tool.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a slide connection structure for an immersion type wire electric discharge cutting machine is proposed, the immersion type wire electric discharge cutting machine comprises a processing tank for immersion type wire electric discharge cutting, a slide mechanism installed on the processing tank, and a carriage assembly connected to the slide mechanism, and its innovative points are:

[0007] The skateboard mechanism includes a frame assembly, a skateboard assembly and a motion axis; the skateboard assembly includes a skateboard body and a shaft ring;

[0008] The slide plate connection structure includes a connecting flange, a flange gasket, and a flange mounting plate. The flange mounting plate is installed on the drag plate assembly, the flange gasket is installed on the flange mounting plate, the connecting flange is installed on the flange gasket, the connecting flange is inserted into the shaft ring, the connecting flange and the shaft ring are coaxial and have a clearance fit, the moving shaft passes through the connecting flange, the flange gasket, and the flange mounting plate and is connected to the drag plate assembly, the moving shaft and the connecting flange are coaxial and have a clearance fit.

[0009] The design principle and technical concept of the utility model are as follows: after the skateboard connection structure of the utility model is installed, when the skateboard body moves left and right, the skateboard body is subjected to the friction resistance of the frame assembly, and the skateboard body applies pressure to the connecting flange through the shaft ring. The connecting flange is fixed to the drag plate assembly through the flange gasket and the flange mounting plate, and the motion axis will not be subjected to the pressure. The connecting flange and the shaft ring are coaxial and have a clearance fit, and the motion axis and the connecting flange are coaxial and have a clearance fit. In this way, the skateboard mechanism and the skateboard connection structure maintain a degree of freedom in the axial direction of the motion arm, which can reduce the friction resistance of the frame assembly to the skateboard body. Thereby avoiding the bending of the motion axis under the action of pressure, the machine tool using the connecting flange mechanism will not reduce the processing accuracy, and has a better cost performance than the machine tool using the original skateboard mechanism.

[0010] The relevant contents in the above technical solution are explained as follows:

[0011] 1. In the description of the present application, it should be understood that the terms "upper", "lower", "vertical", "inner", "outer" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present application.

[0012] 2. In the above scheme, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0013] 3. In the above schemes, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0014] 4. In the above scheme, the number of the connecting flange, flange gasket, and flange mounting plate is two each, and the connecting flange, flange gasket, and flange mounting plate are symmetrically arranged. This structure facilitates assembly, improves assembly accuracy, and ensures the coaxiality and parallelism between the slide mechanism and the slide connection structure.

[0015] 5. In the above scheme, the collar is an annular structure made of polyoxymethylene material, so as to reduce the friction coefficient, thereby reducing the friction force caused by the non-parallelism between the collar and the connecting flange, and between the skateboard body and the frame assembly during relative movement, thus also reducing the friction resistance of the frame assembly to the skateboard body.

[0016] 6. In the above solution, the flange gasket is a semi-annular structure made of polyoxymethylene material, so as to reduce the friction coefficient and thus reduce the friction force caused by the non-parallelism between the moving shaft and the sliding plate connection structure during relative movement.

[0017] 7. In the above solution, the connecting flange and the flange mounting plate are both made of carbon structural steel, and the thickness of the flange mounting plate is in the range of 5.5 to 6.5 mm. This structure is used to improve the structural strength, and the thickness of the flange mounting plate is preferably 6 mm.

[0018] 8. In the above solution, the connecting flange includes a first connecting portion for fixedly connecting with the flange gasket and a second connecting portion for inserting into the shaft ring, so as to achieve a better connection between the connecting flange and the slide mechanism and the slide assembly.

[0019] 9. In the above solution, a waist hole is opened in the middle of the second connecting part. When the slide plate connecting structure is installed between the slide plate assembly and the drag plate assembly, the waist hole is located in the middle of the slide plate assembly and the drag plate assembly, so as to effectively disperse the stress, improve the durability and stability of the structure, and increase the structural strength.

[0020] 10. In the above solution, the shaft ring includes a first shaft ring and a second shaft ring, and the first shaft ring and the second shaft ring are respectively arranged on both sides of the skateboard body, thereby strengthening the connection between the skateboard body and the shaft ring, and providing guarantee for the connection and force application between the connecting flange in the subsequent skateboard connection structure and the shaft ring in the skateboard assembly.

[0021] Due to the application of the above scheme, the utility model has the following advantages and effects compared with the prior art:

[0022] In the above scheme of the utility model, the problem that the slide mechanism in the existing immersed wire-cut electric spark machine tool is subjected to the friction resistance of the frame when the slide is working, and the slide is applied to the moving shaft to form pressure, so that the moving shaft is bent under the action of pressure and the processing accuracy is reduced is overcome. After the slide connection structure of the utility model is installed, when the slide body moves left and right, the slide body is subjected to the friction resistance of the frame assembly, and the slide body applies pressure to the connecting flange through the shaft ring. The connecting flange is fixed to the carriage assembly through the flange pad and the flange mounting plate, and the moving shaft is not subjected to the action of pressure. The connecting flange and the shaft ring are coaxial and have a clearance fit, and the moving shaft and the connecting flange are coaxial and have a clearance fit. In this way, the slide mechanism and the slide connection structure maintain a degree of freedom in the axial direction of the moving arm. Therefore, the friction resistance of the frame assembly to the slide body can be reduced. Thereby, the bending of the moving shaft under the action of pressure is avoided, and the machine tool using the connecting flange mechanism will not reduce the processing accuracy, and has a better cost performance than the machine tool using the original slide mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the skateboard mechanism;

[0024] Figure 2 It is a force diagram of a skateboard mechanism in the prior art;

[0025] Figure 3 This is a schematic diagram of a connecting flange mechanism in an embodiment of the utility model;

[0026] Figure 4 An exploded view of a connecting flange in an embodiment of the utility model;

[0027] Figure 5 It is a schematic diagram of a slide plate assembly in an embodiment of the utility model;

[0028] Figure 6 An exploded view of a slide assembly in an embodiment of the utility model;

[0029] Figure 7 It is a schematic diagram of a processing tank in an embodiment of the utility model;

[0030] Figure 8 This is a schematic diagram of the installation of the sliding plate connection structure in the embodiment of the utility model;

[0031] Fig. 9 It is a schematic diagram of the cooperation relationship between the slide assembly and the slide connection structure in the embodiment of the utility model;

[0032] Fig.10It is a force diagram of the sliding plate connection structure in the embodiment of the utility model.

[0033] In the above attached figure:

[0034] 1. Skateboard connection structure

[0035] 11 Connection flange

[0036] 111 First connection

[0037] 112 Second connection

[0038] 1211 Waist hole

[0039] 12 Flange gasket

[0040] 13 Flange mounting plate

[0041] 2 Skateboard mechanism

[0042] 21 Frame components

[0043] 22 Skateboard Components

[0044] 221 Skateboard body

[0045] 222 Collar

[0046] 2221 First Collar

[0047] 2222 Second Collar

[0048] 23 Motion axis

[0049] 3 Processing slot

[0050] 4 Tray assembly. DETAILED DESCRIPTION

[0051] The present invention will be clearly described below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0052] The utility model aims to solve the problem that when the slide plate mechanism in the existing immersed wire electric spark cutting machine tool is working, the slide plate is subjected to the friction resistance of the frame to exert pressure on the moving shaft, so that the moving shaft bends under the action of the pressure and the processing accuracy is reduced.

[0053] Embodiment 1, Embodiment 1 of the present invention proposes a slide connection structure for an immersion wire-cut electric discharge machine, the immersion wire-cut electric discharge machine comprises a processing tank 3 for immersion wire-cut electric discharge machining, a slide mechanism 2 mounted on the processing tank 3, and a carriage assembly 4 connected to the slide mechanism 2, the slide mechanism 2 comprises a frame assembly 21, a slide assembly 22 and a motion shaft 23; the slide assembly 22 comprises a slide body 221, a shaft ring 222; the slide connection structure 1 comprises a connecting flange 11, The flange gasket 12 and the flange mounting plate 13 are mounted on the carriage assembly 4, the flange gasket 12 is mounted on the flange mounting plate 13, the connecting flange 11 is mounted on the flange gasket 12, the connecting flange 11 is inserted into the shaft ring 222, the connecting flange 11 and the shaft ring 222 are coaxial and have a clearance fit, the moving shaft 23 passes through the connecting flange 11, the flange gasket 12 and the flange mounting plate 13 and is connected to the carriage assembly, the moving shaft 23 and the connecting flange 11 are coaxial and have a clearance fit.

[0054] The principle of the double-layer slide mechanism 2 of the utility model is described as follows:

[0055] like Fig.10 As shown, when the skateboard body 221 moves left and right, the skateboard body 221 is subjected to the friction resistance of the frame assembly 21, and the skateboard body 221 applies pressure to the connecting flange 11 through the shaft ring 222. The connecting flange 11 is fixed to the carriage assembly through the flange gasket 12 and the flange mounting plate 13. The moving shaft 23 is not subjected to the pressure, and the connecting flange 11 and the shaft ring 222 are coaxial and have a clearance fit, and the moving shaft 23 and the connecting flange 11 are coaxial and have a clearance fit. In this way, the skateboard mechanism 2 and the skateboard connection structure 1 maintain one degree of freedom in the axial direction of the moving arm. Thus, the friction resistance of the frame assembly 21 to the skateboard body 221 can be reduced.

[0056] In the first embodiment of the utility model, the number of the connecting flange 11, the flange gasket 12, and the flange mounting plate 13 is two, and the connecting flange 11, the flange gasket 12, and the flange mounting plate 13 are symmetrically arranged. This structure facilitates assembly, improves assembly accuracy, and ensures the coaxiality and parallelism between the slide mechanism 2 and the slide connection structure 1.

[0057] In the first embodiment of the present invention, the connecting flange 11 includes a first connecting portion 111 for fixedly connecting with the flange gasket 12 and a second connecting portion 112 for inserting into the shaft ring 222. In this way, the connecting flange 11 is better connected with the slide mechanism 2 and the slide assembly 22.

[0058] In the first embodiment of the present invention, a waist hole 1121 is opened in the middle of the second connecting portion 112. When the skateboard connecting structure 1 is installed between the skateboard assembly 22 and the drag plate assembly, the waist hole 1121 is located in the middle of the skateboard assembly 22 and the drag plate assembly, so as to effectively disperse the stress, improve the durability and stability of the structure, and increase the structural strength.

[0059] In the first embodiment of the utility model, the shaft ring 222 includes a first shaft ring 2221 and a second shaft ring 2222. The first shaft ring 2221 and the second shaft ring 2222 are respectively arranged on both sides of the skateboard body 221, thereby strengthening the connection between the skateboard body 221 and the shaft ring 222, and providing guarantee for the connection and force application between the connecting flange 11 in the subsequent skateboard connecting structure 1 and the shaft ring 222 in the skateboard assembly 22.

[0060] Embodiment 2: Other parts of Embodiment 2 of the present invention are the same as those of Embodiment 1, except that, in Embodiment 2 of the present invention, further improvements are made to the dimensions, material selection, and fitting clearances of the main parts, so as to achieve a good fitting effect and minimize the friction resistance.

[0061] In the second embodiment of the present invention, the materials and sizes of the main parts of the slide connection structure for an immersed wire-cut electric discharge machine tool can be selected as follows:

[0062] Connecting flange 11: Made of Q235 carbon structural steel;

[0063] Flange gasket 12: Made of black polyoxymethylene material;

[0064] Flange mounting plate 13: Made of 6mm thick Q235 carbon structural steel material;

[0065] The second shaft ring 2222 of the slide plate mechanism 2 is made of polyoxymethylene material.

[0066] As a further preference, in the second embodiment of the present utility model, the matching relationship of the main parts of the slide connection structure for an immersed wire-cut electric discharge machine is specially designed as follows:

[0067] The connecting flange 11 and the moving shaft 23 are coaxially connected, and there is a gap between them, so that the moving shaft 23 is not affected by the lateral friction resistance when the slide mechanism 2 moves;

[0068] The connecting flange 11 and the second shaft ring 2222 of the shaft ring 222 maintain a coaxial relationship, and there is a gap of 0.05 mm between the two, forming a clearance fit, so that the skateboard mechanism 2 and the connecting flange 11 mechanism maintain a degree of freedom in the axial direction of the moving shaft 23, thereby reducing the friction resistance of the frame to the skateboard.

[0069] Therefore, through the implementation of the above embodiments, the purpose of solving the problem that when the slide plate mechanism 2 in the existing immersed electric spark wire cutting machine tool is working, the slide plate is applied to the moving shaft 23 by the friction resistance of the frame to form pressure, so that the moving shaft 23 is bent under the action of pressure and the processing accuracy is reduced is achieved, thereby avoiding the bending of the moving shaft 23 under the action of pressure. The machine tool using the connecting flange 11 mechanism will not reduce the processing accuracy and has a better cost-effectiveness than the machine tool using the original slide plate mechanism 2.

[0070] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A slide connection structure for an immersion wire electric discharge machine, the immersion wire electric discharge machine comprising a processing tank (3) for immersion wire electric discharge machining, a slide mechanism (2) mounted on the processing tank (3), and a carriage assembly (4) connected to the slide mechanism (2), characterized in that: The slide mechanism (2) comprises a frame assembly (21), a slide assembly (22) and a motion shaft (23); the slide assembly (22) comprises a slide body (221) and a shaft ring (222); The slide plate connection structure (1) comprises a connection flange (11), a flange gasket (12), and a flange mounting plate (13); the flange mounting plate (13) is mounted on a carriage assembly (4); the flange gasket (12) is mounted on the flange mounting plate (13); the connection flange (11) is mounted on the flange gasket (12); the connection flange (11) is inserted into a shaft ring (222); the connection flange (11) and the shaft ring (222) are coaxial and have a clearance fit; the movement shaft (23) passes through the connection flange (11), the flange gasket (12), and the flange mounting plate (13) and is connected to the carriage assembly; the movement shaft (23) and the connection flange (11) are coaxial and have a clearance fit.

2. The slide plate connection structure for an immersed wire-cut electric discharge machine according to claim 1, characterized in that: The number of the connecting flange (11), the flange gasket (12), and the flange mounting plate (13) is two each, and the connecting flange (11), the flange gasket (12), and the flange mounting plate (13) are symmetrically arranged.

3. The slide plate connection structure for an immersed wire-cut electric discharge machine according to claim 1, characterized in that: The shaft ring (222) is an annular structure made of polyoxymethylene material.

4. The slide plate connection structure for an immersed wire-cut electric discharge machine according to claim 1, characterized in that: The flange gasket (12) is a semi-annular structure made of polyoxymethylene material.

5. The slide plate connection structure for an immersed wire-cut electric discharge machine according to claim 1, characterized in that: The connecting flange (11) and the flange mounting plate (13) are both made of carbon structural steel, and the thickness of the flange mounting plate (13) is in the range of 5.5 to 6.5 mm.

6. The slide plate connection structure for an immersed wire-cut electric discharge machine according to claim 1, characterized in that: The connecting flange (11) comprises a first connecting portion (111) for fixedly connecting to a flange gasket (12) and a second connecting portion (112) for inserting into a shaft ring (222).

7. The slide plate connection structure for an immersed wire-cut electric discharge machine according to claim 6, characterized in that: A waist hole (1121) is provided in the middle of the second connecting portion (112); when the slide plate connecting structure (1) is installed between the slide plate assembly (22) and the drag plate assembly, the waist hole (1121) is located in the middle of the slide plate assembly (22) and the drag plate assembly.

8. The slide plate connection structure for an immersed wire-cut electric discharge machine according to claim 1, characterized in that: The shaft ring (222) comprises a first shaft ring (2221) and a second shaft ring (2222), and the first shaft ring (2221) and the second shaft ring (2222) are respectively arranged on two sides of the slide body (221).

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