Multipurpose electrode device for electric discharge machine

Abstract

The utility model discloses a multipurpose electrode device for an electric discharge machine. The multipurpose electrode device comprises a bearing frame, an electrode assembly and a linkage structure. A clamping column is formed on the upper portion of the bearing frame, an assembling groove is formed in one side of the bearing frame, a lifting channel is formed in the bearing frame, and the assembling groove and the lifting channel penetrate through the bottom of the bearing frame. The electrode assembly comprises an overturning electrode and a lifting electrode, and the section shapes of the output ends of the overturning electrode and the lifting electrode are different. The overturning electrode and the lifting electrode are installed in the assembling groove and the lifting channel of the bearing frame respectively. A linkage structure is arranged between the turnover electrode and the lifting electrode, the lifting electrode drives the turnover electrode to turn over through the linkage structure when lifting up and down, and therefore when the turnover electrode and the lifting electrode are used for machining a workpiece, the turnover electrode and the lifting electrode do not interfere with each other. The utility model solves the problem that when the section shape of the hole to be processed of the workpiece is different from that of the tool electrode of the electric discharge machine, the replacement of the tool electrode of the electric discharge machine is time-consuming and labor-consuming.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spark machining, in particular to a multi-purpose electrode device for an electric spark machine. Background Art

[0002] The EDM machine is a common machining equipment, which is widely used in the manufacture of various metal molds and mechanical equipment. The working principle of the EDM machine is to remove hard metal through high-frequency sparks generated by discharge between electrodes, thereby machining a shape corresponding to the tool electrode on the workpiece.

[0003] The tool electrode of the prior art EDM machine can only process holes of one shape. When the cross-sectional shape of the hole to be processed in the workpiece is different from the cross-sectional shape of the tool electrode (for example, in the mold processing industry, the shape of the hole to be processed in the mold is usually round or square), the prior art EDM machine needs to replace the tool electrode to complete the processing of the workpiece, thereby reducing the processing efficiency of the workpiece.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] In order to overcome the defects of the prior art, a multi-purpose electrode device for an EDM machine is provided to solve the problem that it is time-consuming and laborious to replace the tool electrode of the EDM machine when the cross-sectional shape of the hole to be processed in the workpiece is different from the cross-sectional shape of the tool electrode of the EDM machine.

[0006] To achieve the above object, a multi-purpose electrode device for an electric spark machine is provided, comprising:

[0007] A carrier frame, wherein a clamping column for mounting the spindle of the electric spark machine is formed on the upper part of the carrier frame, a mounting groove penetrating the bottom of the carrier frame is formed on one side of the carrier frame, and a lifting channel penetrating the bottom of the carrier frame is formed inside the carrier frame;

[0008] The electrode assembly comprises a flip electrode and a lifting electrode, wherein the cross-sectional shapes of the output ends of the flip electrode and the lifting electrode are different, the flip electrode is flipably mounted in the assembly groove through a rotating shaft, the output end of the flip electrode extends to the outside of the carrier, and the lifting electrode is liftably mounted in the lifting channel through a driving assembly;

[0009] A linkage structure includes a rack and a gear, wherein the rack is connected to the side of the lifting electrode facing the flip electrode, the rack is arranged in the vertical direction, and the gear is coaxially connected to the rotating shaft. A through hole connected to the lifting channel is opened at the bottom of the assembly groove, and one side of the gear is rotatably penetrated through the through hole and meshed with the rack. After the lifting electrode is lifted up and down, the lifting electrode drives the flip electrode to flip through the linkage structure so that the flip electrode and the lifting electrode do not interfere with each other.

[0010] Furthermore, the side wall of the lifting channel is formed with a limiting convex ridge, the side of the lifting electrode is provided with a guide groove, the guide groove is arranged in the same direction as the rack, and the limiting convex ridge is slidably arranged in the guide groove.

[0011] Furthermore, the driving assembly includes:

[0012] An adjusting rod, wherein an adjusting channel connected to the lifting channel is formed on the other side of the carrier, the adjusting channel and the lifting channel are arranged in the same direction, the adjusting rod is connected to a side of the lifting electrode facing away from the flip electrode, and the adjusting rod is slidably arranged in the adjusting channel;

[0013] A locking piece for locking the adjusting rod is installed on the supporting frame.

[0014] Furthermore, the locking piece is provided with a through hole, and the adjusting rod can be movably inserted into the through hole. A plurality of positioning holes are provided on the other side of the supporting frame, and the plurality of positioning holes are arranged at intervals along the height direction of the supporting frame. An insertion rod is formed on one side of the locking piece close to the supporting frame, and the adjusting rod is installed with a push spring for pushing the locking piece so that the insertion rod is inserted into the positioning hole.

[0015] Furthermore, a plurality of scale lines for indicating the flip angle of the flip electrode are formed on the other side of the support frame, and the plurality of scale lines correspond to the plurality of positioning holes one by one.

[0016] Furthermore, a stop block is formed at one end of the adjusting rod away from the lifting electrode, the pushing spring is sleeved on the adjusting rod, and opposite ends of the pushing spring are pressed against the locking member and the stop block respectively.

[0017] Furthermore, an external thread is formed at one end of the adjusting rod away from the lifting electrode, and an internal thread is formed on the wall of the through hole. After the locking piece is pulled outward to separate the insertion rod from the positioning hole, the adjusting rod is screwed into the through hole to lock the locking piece.

[0018] Furthermore, a rotating flange is formed on one side of the locking member away from the supporting frame.

[0019] The beneficial effect of the utility model is that the output end of the flip electrode and the output end of the lifting electrode of the multi-purpose electrode device for the electric spark machine of the utility model have different shapes, and the output end of the flip electrode and the output end of the lifting electrode are suitable for processing channels with different cross-sectional shapes.

[0020] When the flipping electrode is working, the lifting electrode is placed in the lifting channel, and the lifting electrode will not interfere with the flipping electrode; when the lifting electrode is needed to process the workpiece, the lifting electrode is lowered, and during the lowering process, the lifting electrode drives the flipping electrode to flip upward toward the notch of the assembly slot through the linkage structure. After the output end of the lifting electrode is completely extended out of the lifting channel, the flipping electrode is placed in the assembly slot, and the flipping electrode will also not interfere with the lifting electrode.

[0021] The multi-purpose electrode device for an electric spark machine of the utility model can adjust the flip electrode to different inclination angles by lifting the lifting electrode up and down, so that the flip electrode is suitable for processing channels with different inclination angles, thereby further improving the versatility of the multi-purpose electrode device for an electric spark machine of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 The present invention is a schematic structural diagram of a multi-purpose electrode device for an electric spark machine according to an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of a second usage state of the multi-purpose electrode device for an electric spark machine according to an embodiment of the utility model.

[0025] Figure 3 This is a schematic diagram of a third usage state of the multi-purpose electrode device for an electric spark machine according to an embodiment of the utility model.

[0026] Figure 4 For the utility model embodiment Figure 2 Enlarged view of point A in the middle.

[0027] Figure 5 It is a schematic structural diagram of a locking member according to an embodiment of the utility model.

[0028] Figure 6 It is a structural schematic diagram of the adjustment rod of an embodiment of the utility model.

[0029] Figure 7 It is a side view of a multi-purpose electrode device for an electric spark machine according to an embodiment of the utility model. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Reference Figures 1 to 7 As shown, the utility model provides a multi-purpose electrode device for an electric spark machine, comprising: a carrier frame 1, an electrode assembly and a linkage structure 5.

[0033] The carrier 1 is used to connect the main shaft of the EDM machine and assemble the electrode assembly, and a clamping column 11 is formed on the upper part of the carrier 1. An electrode chuck is installed on the main shaft of the EDM machine, and the installation of the carrier 1 is completed by installing the clamping column 11 on the electrode chuck on the main shaft.

[0034] A mounting groove a is formed on one side of the carrier 1, and the mounting groove a is arranged in the vertical direction and passes through the bottom of the carrier 1. A lifting channel b is formed inside the carrier 1, and the lifting channel b is arranged in the vertical direction, and the lower end of the lifting channel b passes through the bottom of the carrier 1.

[0035] The electrode assembly includes a flip electrode 21 and a lifting electrode 22. The cross-sectional shapes of the output ends of the flip electrode 21 and the lifting electrode 22 are different. In this embodiment, the output end of the flip electrode 21 is cylindrical, the cross-sectional shape of the output end of the flip electrode 21 is circular, and the flip electrode 21 is suitable for processing a circular hole. The output end of the lifting electrode 22 is a quadrangular prism, the cross-sectional shape of the output end of the lifting electrode 22 is square, and the lifting electrode 22 is suitable for processing a square hole.

[0036] See also Figure 1 As shown, the upper end of the flip electrode 21 is flippably mounted in the assembly groove a through the rotating shaft 3, and the output end of the flip electrode 21 extends to the outside of the carrier 1. The lifting electrode 22 is liftably mounted in the lifting channel b through the driving component 4. The lifting electrode 22 is lifted up and down by the driving component 4, so as to adjust the height of the lifting electrode 22.

[0037] The driving assembly 4 includes an adjusting rod 41 and a locking member 42. The adjusting rod 41 is used to drive the lifting electrode 22 to move up and down. After the position of the lifting electrode 22 is adjusted, the adjusting rod 41 is locked to the supporting frame 1 by the locking member 42, thereby limiting the up and down displacement of the lifting electrode 22.

[0038] Specific, combined Figure 1 , Figure 7 As shown, an adjustment channel e is formed on the other side of the carrier 1, and the adjustment channel e is arranged in the vertical direction, and the adjustment channel e is connected to the lifting channel b. The adjustment rod 41 is arranged in the horizontal direction, and the adjustment rod 41 is slidably arranged in the lifting channel b. One end of the adjustment rod 41 is connected to the side of the lifting electrode 22 that is away from the flip electrode 21, and the other end of the adjustment rod 41 extends to the outside of the carrier 1 and is connected to a stop block 411.

[0039] See also Figure 4 , Figure 5 and Figure 7 As shown, a plurality of positioning holes g are provided on the other side of the carrier 1, and the plurality of positioning holes g are arranged at intervals along the height direction of the carrier 1. In this embodiment, a plurality of positioning holes g are respectively provided on opposite sides of the adjustment channel e, and the plurality of positioning holes g on opposite sides of the adjustment channel e are symmetrically arranged.

[0040] The locking member 42 is provided with a through hole f, and the aperture size of the through hole f is adapted to the outer diameter size of the adjusting rod 41. The adjusting rod 41 can be movably inserted into the through hole f of the locking member 42. An insertion rod 421 is formed on the side of the locking member 42 close to the supporting frame 1. In the present embodiment, there are four insertion rods 421, and the four insertion rods 421 are respectively arranged at the corners of the locking member 42. A push spring 6 is sleeved on the adjusting rod 41, and the opposite ends of the push spring 6 are respectively pressed against the locking member 42 and the stop block 411. Under the action of the elastic thrust of the push spring 6, the four insertion rods 421 of the locking member 42 are respectively inserted into the four positioning holes g of the supporting frame 1, thereby locking the adjusting rod 41.

[0041] See also Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, an end of the adjusting rod 41 away from the lifting electrode 22 is formed with an external thread 412, and a hole wall of the through hole f of the locking member 42 is formed with an internal thread. A side of the locking member 42 away from the supporting frame 1 is formed with a rotating flange 422.

[0042] When adjusting the height of the lifting electrode 22, first pull the toggle flange 422 outward, and after overcoming the elastic force of the push spring 6, separate the insertion rod 421 of the locking member 42 from the positioning hole of the carrier 1. Then continue to pull the toggle flange 422 outward and rotate the toggle flange 422, so that the through hole f of the locking member 42 is screwed into the adjustment rod 41, thereby locking the locking member 42 to the adjustment rod 41. Through the above operation, it is convenient to adjust the lifting electrode 22 to a predetermined height later.

[0043] After the lifting electrode 2 is adjusted to a predetermined height, the locking member 42 is unlocked by the adjusting rod 41 by rotating the toggle flange 422. Under the elastic thrust of the push spring 6, the insertion rod 421 of the locking member 42 is inserted into the positioning hole g of the carrier frame 1, thereby locking the adjusting rod 41 and completing the adjustment of the height of the lifting electrode 22.

[0044] When the lifting electrode 22 is lifted up and down, it drives the flipping electrode 21 to flip through the linkage structure 5, so that the flipping electrode 21 and the lifting electrode 22 do not interfere with each other when they work separately.

[0045] The linkage structure 5 includes a rack 51 and a gear 52. Specifically, the rack 51 is connected to the side of the lifting electrode 22 facing the flip electrode 21, and the rack 51 is arranged in the vertical direction. The gear 52 is coaxially connected to the rotating shaft 3. A through hole c connected to the lifting channel b is opened at the bottom of the assembly groove a. In this embodiment, the through hole c is in a bar shape. One side of the gear 52 is rotatably arranged in the through hole c and meshes with the rack 51.

[0046] See also Figure 1 As shown, when the flip electrode 21 is used to process a round hole for a workpiece, the lifting electrode 22 is accommodated in the lifting channel b, and the lifting electrode 22 will not interfere with the flip electrode 21.

[0047] When it is necessary to use the lifting electrode 22 to process a square hole for a workpiece, the following operations are performed:

[0048] 1. Pull the toggle flange 422 of the locking member 42 outward to separate the insertion rod 421 of the locking member 42 from the positioning hole of the carrier frame 1. Then continue to pull the toggle flange 422 outward and rotate the toggle flange 422 to screw the locking member 42 into the adjusting rod 41.

[0049] 2. The lifting electrode 22 is lowered by adjusting the rod 41. During the lowering process, the lifting electrode 22 drives the flip electrode 21 to flip upward toward the notch of the assembly groove a through the linkage structure 5 (cooperation of the rack 51 and the gear 52). Thus, when the output end of the lifting electrode 22 is completely extended out of the lifting channel b and the workpiece is processed, the flip electrode 21 will not interfere with the lifting electrode 22. Preferably, refer to Figure 3 As shown, in this embodiment, when the output end of the lifting electrode 22 is completely extended out of the lifting channel b, the flip electrode 21 is accommodated in the assembly groove a.

[0050] 3. Rotate the toggle flange 422 to release the screwing state between the locking member 42 and the adjusting rod 41. Under the push of the push spring 6, the insertion rod 421 of the locking member 42 is inserted into the positioning hole g of the carrier frame 1, thereby locking the adjusting rod 41.

[0051] Through the above operation, the output end of the lifting electrode 22 is lowered to the outside of the carrier, and the output end of the flip electrode 21 is placed in the assembly groove a, so that when the lifting electrode 22 is used to process the square hole for the workpiece, the flip electrode 21 will not interfere with the lifting electrode 22.

[0052] See also Figure 2 As shown, by lifting and lowering the lifting electrode 22, the flip electrode 21 can be adjusted to different tilt angles, so that the flip electrode 21 can process holes with different tilt angles for the workpiece. Figure 7 As shown, in this embodiment, a plurality of scale lines 7 are formed on the other side of the carrier 1, and the scale lines 7 are used to indicate the flip angle of the flip electrode 21. The plurality of scale lines 7 correspond to the positions of the plurality of positioning holes g of the carrier 1. With the help of the scale lines 7, the operator can quickly adjust the flip electrode 21 to a predetermined tilt angle, thereby improving the processing efficiency of the workpiece.

[0053] As a preferred implementation, see Figure 1 As shown, the side wall of the lifting channel b is formed with a limiting convex ridge, and a guide groove d is opened on the side of the lifting electrode 22. The guide groove d is arranged in the same direction as the rack 51 (vertically arranged), and the limiting convex ridge is slidably arranged in the guide groove d of the lifting electrode 22. Through the cooperation between the limiting convex ridge and the guide groove d, the lifting electrode 22 is more stable and reliable during the lifting and lowering process.

[0054] In some embodiments, the cross-sectional shapes of the output ends of the flip electrode 21 and the lifting electrode 22 are the same, both are circular or square, and the outer diameters of the output ends of the flip electrode 21 and the lifting electrode 22 are different, thereby being able to meet the needs of processing round holes or square holes of different specifications for the workpiece.

[0055] The utility model discloses a multi-purpose electrode device for an electric spark machine. The output end of the flip electrode and the output end of the lifting electrode have different shapes. The output end of the flip electrode and the output end of the lifting electrode are suitable for processing channels with different cross-sectional shapes.

[0056] When the flipping electrode is working, the lifting electrode is placed in the lifting channel, and the lifting electrode will not interfere with the flipping electrode; when the lifting electrode is needed to process the workpiece, the lifting electrode is lowered, and during the lowering process, the lifting electrode drives the flipping electrode to flip upward toward the notch of the assembly slot through the linkage structure. After the output end of the lifting electrode is completely extended out of the lifting channel, the flipping electrode is placed in the assembly slot, and the flipping electrode will also not interfere with the lifting electrode.

[0057] The multi-purpose electrode device for an electric spark machine of the utility model can adjust the flip electrode to different inclination angles by lifting the lifting electrode up and down, so that the flip electrode is suitable for processing channels with different inclination angles, thereby further improving the versatility of the multi-purpose electrode device for an electric spark machine of the utility model.

[0058] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A multi-purpose electrode device for an electric spark machine, characterized in that: include: A carrier frame, wherein a clamping column for mounting the spindle of the electric spark machine is formed on the upper part of the carrier frame, a mounting groove penetrating the bottom of the carrier frame is formed on one side of the carrier frame, and a lifting channel penetrating the bottom of the carrier frame is formed inside the carrier frame; The electrode assembly comprises a flip electrode and a lifting electrode, wherein the cross-sectional shapes of the output ends of the flip electrode and the lifting electrode are different, the flip electrode is flipably mounted in the assembly groove through a rotating shaft, the output end of the flip electrode extends to the outside of the carrier, and the lifting electrode is liftably mounted in the lifting channel through a driving assembly; A linkage structure includes a rack and a gear, wherein the rack is connected to the side of the lifting electrode facing the flip electrode, the rack is arranged in the vertical direction, and the gear is coaxially connected to the rotating shaft. A through hole connected to the lifting channel is opened at the bottom of the assembly groove, and one side of the gear is rotatably penetrated through the through hole and meshed with the rack. After the lifting electrode is lifted up and down, the lifting electrode drives the flip electrode to flip through the linkage structure so that the flip electrode and the lifting electrode do not interfere with each other.

2. The multi-purpose electrode device for an electric spark machine according to claim 1, characterized in that: The side wall of the lifting channel is formed with a limiting convex ridge, the side of the lifting electrode is provided with a guide groove, the guide groove is arranged in the same direction as the rack, and the limiting convex ridge is slidably arranged in the guide groove.

3. The multi-purpose electrode device for an electric spark machine according to claim 1, characterized in that: The drive assembly comprises: An adjusting rod, wherein an adjusting channel connected to the lifting channel is formed on the other side of the carrier, the adjusting channel and the lifting channel are arranged in the same direction, the adjusting rod is connected to a side of the lifting electrode facing away from the flip electrode, and the adjusting rod is slidably arranged in the adjusting channel; A locking piece for locking the adjusting rod is installed on the supporting frame.

4. The multi-purpose electrode device for an electric spark machine according to claim 3, characterized in that: The locking piece is provided with a through hole, and the adjusting rod can be movably inserted into the through hole. A plurality of positioning holes are provided on the other side of the supporting frame, and the plurality of positioning holes are arranged at intervals along the height direction of the supporting frame. An insertion rod is formed on one side of the locking piece close to the supporting frame, and the adjusting rod is provided with a push spring for pushing the locking piece so that the insertion rod is inserted into the positioning hole.

5. The multi-purpose electrode device for an electric spark machine according to claim 4, characterized in that: A plurality of scale lines for indicating the flip angle of the flip electrode are formed on the other side of the carrier, and the plurality of scale lines correspond to the plurality of positioning holes one by one.

6. The multi-purpose electrode device for an electric spark machine according to claim 4, characterized in that: A stop block is formed at one end of the adjusting rod away from the lifting electrode, the pushing spring is sleeved on the adjusting rod, and opposite ends of the pushing spring are pressed against the locking member and the stop block respectively.

7. The multi-purpose electrode device for an electric spark machine according to claim 6, characterized in that: An external thread is formed at one end of the adjusting rod away from the lifting electrode, and an internal thread is formed on the hole wall of the through hole. After the locking piece is pulled outward to separate the insertion rod from the positioning hole, the adjusting rod is screwed into the through hole to lock the locking piece.

8. The multi-purpose electrode device for an electric spark machine according to claim 7, characterized in that: A turning flange is formed on one side of the locking member away from the supporting frame.

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