Wire supporting device and spark erosion drilling machine

Abstract

The wire supporting device is arranged on a machine head, the machine head comprises a module base, a lifting block driven by a first driving assembly to ascend and descend is arranged on the module base, and a rotating head assembly is fixed to the lifting block. The wire supporting device comprises a first guide seat, and the first guide seat is fixed to the lifting block. The first rod body is arranged in the first guide base in a penetrating mode in the vertical direction and can slide up and down along the first guide base, a first limiting block located at the upper end of the first guide base is fixed to the first rod body, and the first limiting block can abut against the upper end face of the first guide base. The first fixing base is fixedly connected with the first rod body and located below the first guide base. The first wire supporting assembly is fixed to the first fixing base and provided with a first guide hole which is coaxial with the rotating head and located below the rotating head all the time. The wire supporting assembly and the rotating head assembly can move in a follow-up and relative mode, cost is saved, and the descending distance of the rotating head assembly cannot be affected.

Description

Technical Field

[0001] The invention relates to the technical field of electric spark perforating equipment, in particular to a wire support device and an electric spark perforating machine. Background Art

[0002] The EDM perforator is also called an EDM puncher, an EDM small hole machine, or an EDM fine hole discharge machine. Its working principle is to use a hollow thin metal copper tube (called an electrode wire) that moves vertically up and down continuously as an electrode to perform pulsed spark discharge to erode the metal and form holes in the workpiece. Since the electrode wire is a slender piece, it is easy to bend during the processing of the workpiece, which affects the processing quality and efficiency. Therefore, it is necessary to set a wire support device on the EDM perforator to support and guide the electrode wire to stabilize the electrode wire. However, in existing designs, the wire support device is usually set on a fixed component and cannot move synchronously with the rotating head that clamps the electrode wire. At this time, the support for the electrode wire is not good, and the electrode wire is prone to shaking, affecting the processing accuracy of the workpiece. Even if some wire supports can move up and down, additional drive components are usually required to drive the wire support device to rise and fall synchronously with the rotating head assembly, which is costly. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide a wire guide device and an electrospark perforator, in which a driving assembly can drive the wire guide assembly and the rotating head assembly for the electrode wire to pass through to move synchronously, thereby saving costs; at the same time, the wire guide assembly and the rotating head assembly can produce relative displacement, which will not affect the descending distance of the rotating head assembly.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a wire support device is arranged on the head, the head includes a module seat, the module seat is provided with a lifting block driven by a first driving component to lift and lower, the lifting block is fixed with a rotating head assembly, and the wire support device includes: A first guide seat, wherein the first guide seat is fixedly connected to the lifting block; A first rod body, the first rod body is vertically inserted into the first guide seat and can slide up and down along the first guide seat, a first limit block located at the upper end of the first guide seat is fixed to the first rod body, and the first limit block can abut against the upper end surface of the first guide seat; A first fixing seat, the first fixing seat is fixedly connected to the first rod body and is located below the first guide seat; The first armature assembly is fixed on the first fixing seat, and the first armature assembly is provided with a first guide hole which is coaxial with the rotating head and is always located below the rotating head assembly. The beneficial effects of the present invention are: When the first wire assembly is not in abutment with the component below it, the first wire assembly and the first fixed seat will move downward due to their own gravity until the first limit block abuts against the first guide seat. At this time, since the first guide seat and the lifting block are fixed, the first driving assembly of the rotating head assembly can drive the first wire assembly to rise and fall synchronously, without the need for additional driving parts, thus saving costs.

[0005] The first wire assembly is not directly fixed to the lifting block or the rotating head assembly. The first wire assembly can produce relative movement with the lifting block in the vertical direction. The first rod body plays a guiding role. After the first wire assembly abuts against the lower component (guide plate), the first wire assembly no longer moves downward, but the rotating head assembly can continue to move downward to meet the processing requirements without affecting the moving space of the rotating head assembly in the vertical direction.

[0006] Furthermore, the wire support device also includes: a second rod body, the second rod body being vertically inserted into the first fixing seat and being able to slide up and down along the first fixing seat, a second limiting block being fixed to the second rod body and being located at the upper end of the first fixing seat, and the second limiting block being able to abut against the upper end surface of the first fixing seat; a second fixing seat, the second fixing seat being fixedly connected to the second rod body and being located below the first fixing seat; The second wire support assembly is fixed on a second fixing seat, and the second wire support assembly is provided with a second guide hole which is coaxial with the first guide hole and is always located below the first guide hole.

[0007] A second wire support assembly is added to cooperate with the first wire support assembly to support the electrode wire twice, thereby improving the support effect. At the same time, the connection between the second rod body and the second fixing seat allows the first wire support assembly and the second wire support assembly to form a linkage structure. The second wire support assembly and the second fixing seat are downward due to their own gravity, and the position is limited by the second limit block. The first wire support assembly and the second wire support assembly can be raised and lowered synchronously and can move relative to each other.

[0008] Furthermore, the machine head also includes a guide plate fixed at the lower end of the module base, and a guide coaxial with the first guide hole is provided on the guide plate. The first wire assembly and the second wire assembly can be stacked on the guide plate in a vertical direction to limit the downward movement distance of the first wire assembly and the second wire assembly.

[0009] The guide plate is an inherent structure of the machine head. The guide plate is used to limit the first wire assembly and the second wire assembly to limit the downward movement distance of the two. When the first wire assembly and the second wire assembly are stacked on the guide plate, relative movement will occur between the rotating head assembly and the first wire assembly and the second wire assembly.

[0010] Further, when the rotating head assembly is in an initial position away from the guide, the distance from the second guide hole to the wire outlet of the rotating head assembly is half the distance from the wire outlet of the rotating head assembly to the guide, and the distance from the second guide hole to the first guide hole is half the distance from the second guide hole to the wire outlet of the rotating head assembly.

[0011] This distance setting allows the second guide hole to be centered between the wire outlet of the rotating head assembly and the guide in the initial position, and the first guide hole to be centered between the wire outlet of the rotating head assembly and the second guide hole, so as to always provide support for the electrode wire in the centered position during the lifting and lowering process of the rotating head assembly.

[0012] Further, the first wire support assembly includes a connecting frame and a wire support frame fixed on the connecting frame, the position of the wire support frame in a first direction in a horizontal plane is adjustable, the wire support frame includes a horizontal plate and a positioning plate, the horizontal plate is provided with a first notch, the positioning plate is provided with a second notch corresponding to the first notch, the first notch and the second notch can be surrounded to form a first guide hole, and the first notch and the second notch can be close to or far away from each other. The position of the wire support is adjusted to improve the concentricity of the first inverted hole and the wire outlet of the rotating head assembly to overcome the error caused by processing. The positioning plate and the horizontal plate can form the first guide hole and facilitate the electrode wire to enter from the opening of the first notch.

[0013] Furthermore, the horizontal plate is provided with a waist-shaped hole extending in the first direction, and the horizontal plate is fixed by a locking member passing through the waist-shaped hole and the connecting frame. The position adjustment of the horizontal plate is achieved through the structure of the waist-shaped hole. The positioning plate is hinged to the horizontal plate, and the supporting wire frame is provided with a supporting wire driving member for driving the positioning plate to swing in a horizontal plane.

[0014] Furthermore, both the first notch and the second notch are V-shaped grooves, which have high compatibility and can support electrode wires of different diameters.

[0015] Furthermore, the module seat is fixed with a first guide rail and a second guide rail spaced apart along the second direction, the lifting block slides along the first guide rail and the second guide rail, and the first fixed seat and the second fixed seat slide along the first guide rail and the second guide rail respectively.

[0016] The first guide rail and the second guide rail provide guidance for the lifting of the lifting block, and when the first fixed seat and the second fixed seat are lifted and lowered, in addition to the guidance of the first rod body and the second rod body, the first guide rail and the second guide rail are used to guide the movement of the first fixed seat and the second fixed seat respectively. Furthermore, a surrounding plate and a baffle are fixed on the module seat, and the module seat, the surrounding plate and the baffle form a cavity. The first driving assembly is located in the cavity, and the lifting block and the first fixed seat are both provided with a clearance hole for the baffle to pass through, and the rotating head assembly and the first support wire assembly are located outside the cavity.

[0017] The cavity is set to effectively protect the first drive assembly, but the setting of the through hole allows the rotating head assembly, the first wire assembly and the second wire assembly to be located outside the cavity to process the workpiece. Part of the wire assembly is set in the cavity, and the other part is also located below the rotating head assembly, which makes reasonable use of the original cavity space and saves space.

[0018] The present invention also discloses an electrospark perforator, comprising a machine head, wherein the machine head comprises a module seat, the module seat is provided with a lifting block which is lifted and lowered under the drive of a first driving component, a rotating head component is fixed on the lifting block, and the lifting block is also provided with the above-mentioned wire support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the head in one embodiment of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the support wire device in an embodiment of the present invention in the initial position; Figure 3 It is a side view of the wire support device in an embodiment of the present invention in an initial position; Figure 4 It is an axial view of the wire support device in an embodiment of the present invention in an initial position; Figure 5 It is a schematic diagram of the three-dimensional structure of the handrail device in the final position in one embodiment of the present invention; Figure 6 An axial view of a wire guide device in a final position according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the first support wire assembly in one embodiment of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the first support wire assembly in another embodiment of the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of an electrospark punching machine in one embodiment of the present invention.

[0020] In the figure: 1. Fix the components; 11. module seat; 111. first guide rail; 112. second guide rail; 2. Lifting block; 3. A first drive assembly; 4. The first wire support mechanism; 41. first guide seat; 42. first rod body; 43. first stopper; 44. first fixing seat; 441. clearance hole; 45. first support wire assembly; 451. connecting frame; 452. horizontal plate; 4511. waist-shaped hole; 453. positioning plate; 454. first guide hole; 455. vertical plate; 456. support wire driving member; 5. The second wire support mechanism; 51. second rod body; 52. second fixing seat; 53. second limiting block; 54. second supporting wire assembly; 6. Rotating head assembly; 61. Rotary drive member; 62. Rotary head body; 7. guide assembly; 71. guide plate; 72. guide; 100. Machine head; 200. Placement table. DETAILED DESCRIPTION The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0021] See attached Figure 1 and attached Figure 2 As shown, a wire support device of the present invention is arranged on a machine head 100, and the machine head 100 includes a module seat 11, and a lifting block 2 is arranged on the module seat 11, which is lifted and lowered under the drive of the first driving component 3, and a rotating head component 6 is fixed on the lifting block 2. When the first driving component 3 is in motion, it can drive the lifting block to drive the entire rotating head component 6 to move up and down, so as to realize the reciprocating movement of the rotating head component 6 in the Z direction. The rotating head component 6 can clamp the electrode wire and drive the electrode wire to rotate, and the electrode wire passes downward through the rotating head component 6.

[0022] The wire supporting device is arranged on the lifting block 2, and includes a first wire supporting mechanism 4, which can support the electrode wire coming out of the wire outlet of the rotating head assembly 6. The first wire supporting mechanism 4 includes a first guide seat 41, a first rod body 42, a first fixing seat 44 and a first wire supporting assembly 45.

[0023] The first guide seat 41 is fixedly connected to the lifting block 2, and the first rod body 42 is vertically inserted into the first guide seat 41 and can slide up and down along the first guide seat 41. A first limit block 43 located at the upper end of the first guide seat 41 is fixed to the first rod body 42, and the lower end surface of the first limit block 43 can abut against the upper end surface of the first guide seat 41, and the diameter of the first limit block 43 is larger than the diameter of the through hole on the first guide seat 41 for the first rod body 42 to pass through. The first fixed seat 44 is fixedly connected to the first rod body 42 and is located below the first guide seat 41. The first wire assembly 45 is fixed to the first fixed seat 44, and the first wire assembly 45 is provided with a first guide hole 454 that is coaxial with the rotating head and is always located below the rotating head assembly 6.

[0024] The structure of the first wire support mechanism 4 allows the first wire support assembly 45 to be synchronously lifted and lowered with the lifting block 2 (that is, the rotating head assembly 6). At this time, the first wire support assembly 45 is a follower of the rotating head assembly 6. The first driving assembly 3 that drives the rotating head assembly 6 to lift and lower is used, and no additional driving parts are required, saving costs. At the same time, the first wire support assembly 45 is not directly fixed to the lifting block 2 or the rotating head assembly 6. The first wire support assembly 45 can move relative to the lifting block 2 in the vertical direction, so that after the first wire support assembly 45 abuts against the guide plate 71, the rotating head assembly 6 can continue to move downward, meeting the processing requirements, and does not affect the moving space of the rotating head assembly 6 in the vertical direction.

[0025] When the first wire assembly 45 is not in contact with the guide plate 71 below it, the first wire assembly 45 and the first fixed seat 44 will move downward due to their own gravity until the first limit block 43 is in contact with the first guide seat 41. At this time, since the first guide seat 41 and the lifting block 2 are fixed, the first wire assembly 45 can move up and down synchronously with the lifting block 2. When the lifting block 2 moves downward until the first wire assembly 45 and the fixed component (the component in this embodiment is the guide plate 71 at the lower end of the module seat 11) are in contact, the first wire assembly 45 cannot continue to move downward, but since the first wire assembly 45 and the first guide seat 41 are slidably connected by the first rod body 42, the first guide seat 41 and the lifting block 2 can still continue to move downward, that is, the rotating head assembly 6 continues to move downward until it reaches the attached Figure 5 The final position shown. When the rotating head assembly 6 moves up from the final position, the first limit block 43 does not abut against the first guide seat 41 at the beginning, and only the lifting block 2 moves up until the upper end surface of the first guide seat 41 abuts against the lower end surface of the first limit block 43. At this time, the first guide seat 41 can drive the first rod body 42 and the first wire assembly 45 to move up together until they move to the initial position. In this process, the first wire assembly 45 straightens the electrode wire.

[0026] In one embodiment, the first guide seat 41 and the lifting block 2 are separate structures, and the two are fixedly connected by a locking member such as a bolt. Of course, the first guide seat 41 and the lifting block 2 can also be an integrated structure, in which case a guide portion for the first rod body 42 to slide is provided on the lifting block 2.

[0027] See attached Figure 2 As shown, the machine head 100 also includes a guide assembly 7, which includes a guide plate 71 fixed to the lower end of the module seat 11, and a guide 72 coaxial with the first guide hole 454 is provided on the guide plate 71. The motor passes through the guide 72 and contacts the workpiece to process the workpiece. The guide 72 and the first guide hole 454 are coaxial. The first wire assembly 45 is stacked on the guide plate 71 in the vertical direction to limit the downward movement distance of the first wire assembly 45. When the first wire assembly 45 and the guide plate 71 are abutted (see the attached Figure 5 As shown), the first wire assembly 45 will not continue to move downward. At this time, the first guide seat 41 can move downward along the first rod body 42 synchronously with the lifting block 2, and will not affect the continued downward movement of the rotating head assembly 6 for processing.

[0028] In one embodiment, the position of the first limit block 43 on the first rod body 42 is adjustable, and the first limit block 43 is sleeved on the first rod body 42 and fixed to the first rod body 42 through a tightening member. The position of the first limit block 43 can be adjusted in the vertical direction, so as to adjust the distance between the wire outlet of the rotating head assembly 6 and the first guide hole 454 when the first limit block 43 and the first guide seat 41 are in abutment. This distance determines at what position the first wire support assembly 45 supports the electrode wire in the initial position, and selecting this appropriate distance can make the wire support effect of the first wire support assembly 45 better.

[0029] In one embodiment, in the initial position, the distance from the first guide hole 454 to the wire outlet of the rotating head assembly 6 is half the distance from the wire outlet of the rotating head assembly 6 to the guide 72. When only one first wire-supporting mechanism 4 is provided, the first wire-supporting assembly 45 is allowed to support the wire in the center position, thereby improving the wire-supporting effect of the first wire-supporting assembly 45 in the initial position.

[0030] See attached Figure 8 As shown, the first wire support assembly 45 includes a connecting frame 451 and a wire support frame fixed on the connecting frame 451, and the connecting frame 451 is fixed on the first fixing seat 44. The wire support frame includes a horizontal plate 452 and a positioning plate 453, the horizontal plate 452 is provided with a first notch, the positioning plate 453 is hinged to the horizontal plate 452, and the positioning plate 453 is provided with a second notch corresponding to the first notch, and the first notch and the second notch can surround to form a first guide hole 454.

[0031] When the positioning plate 453 swings to move the second notch away from the first notch, the electrode wire can easily enter the first notch. When the positioning plate 453 swings to move the second notch closer to the first notch to form the first guide hole 454, the first guide hole 454 defines the position of the electrode wire. In one embodiment, in order to improve the concentricity of the first inverted hole and the wire outlet of the rotating head assembly 6, the position of the wire support in the first direction (Y direction) in the horizontal plane is adjustable. During the assembly process, the position of the wire support is fine-tuned to overcome the error caused by processing.

[0032] See attached Figure 7 As shown, a waist-shaped hole 4511 extending along the Y direction is provided on the horizontal plate 452, and the horizontal plate 452 is fixed by a locking member passing through the waist-shaped hole 4511 and the connecting frame 451. The locking member can be a bolt and nut, and the horizontal plate 452 slides along the waist-shaped hole 4511. When the horizontal plate 452 is adjusted to a specified position, the locking member presses and fixes the horizontal plate 452 and the connecting frame 451.

[0033] The wire support frame also includes a vertical plate 455 , which is an integrated structure with the horizontal plate 452 . The vertical plate 455 is also fixed to the connecting frame 451 through a locking member, so as to improve the stability of the connection between the wire support frame and the connecting frame 451 .

[0034] The wire support frame is provided with a wire driving member 456 for driving the positioning plate 453 to swing. In one embodiment, the wire driving member 456 can be a cylinder, the housing of which is hinged on the wire support frame, and the telescopic rod of the cylinder is hinged to the end of the positioning plate 453. At this time, the middle position of the positioning plate 453 is hinged to the horizontal plate 452. At this time, when the cylinder is extended and retracted, it can drive the positioning plate 453 to swing.

[0035] In one embodiment, the wire support frame may not be provided with the wire drive member 456, and the swing rod may be manually fixed. Figure 7 As shown, the positioning plate 453 can be set to be detachably connected to the horizontal plate 452, that is, the two do not use a hinged structure, but are adsorbed by magnets. At this time, it is only necessary to adsorb the positioning plate 453 on the horizontal plate 452 and adjust it to a suitable position.

[0036] The first notch and the second notch are both V-shaped grooves. The V-shaped grooves have wide compatibility and can support electrode wires with different diameters.

[0037] In some embodiments, the first notch and the second notch may also be arc-shaped grooves, but the arc-shaped grooves are not compatible with electrode wires of different diameters.

[0038] See attached Figure 1 and attached Figure 2As shown, a panel and a baffle are fixed on the module seat 11, and the module seat 11, the panel and the baffle together form a fixed assembly 1, and the module seat 11, the panel and the baffle surround a cavity, and the first drive assembly 3 is located in the cavity. The lifting block 2 and the first fixed seat 44 are both provided with a clearance hole 441 for the baffle to pass through, and the rotating head assembly 6 and the first wire assembly 45 are located outside the cavity. At this time, the first drive assembly 3 is effectively protected by the setting of the cavity, but the setting of the clearance hole 441 allows the rotating head assembly 6 and the first wire assembly 45 to be located outside the cavity to process the workpiece. The setting of the baffle and the clearance hole 441 can also provide a certain guiding effect on the lifting and lowering of the lifting block 2 and the first fixed seat 44.

[0039] Part of the wire support device in this embodiment is arranged in the cavity, and the other part is also located below the rotating head assembly 6. Compared with the structure of the prior art in which the entire wire support device is arranged outside the cavity, the original cavity space is reasonably utilized and space is saved.

[0040] The first driving assembly 3 includes a first motor, a screw and a nut seat. The first motor is fixed on the module seat 11. The screw is vertically arranged and rotatably connected to the module seat 11. The screw is connected to the first motor and can rotate along its own axis driven by the first motor. The nut seat and the screw are threadedly connected. When the screw rotates, the nut seat moves up and down along the screw. The nut seat is fixedly connected to the lifting block 2 to achieve two synchronous lifting.

[0041] In one embodiment, the wire supporting device further includes a second wire supporting mechanism 5, which also supports the electrode wire. The first wire supporting mechanism 4 and the second wire supporting mechanism 5 support one electrode wire twice in the vertical direction at intervals, further improving the stability of the wire supporting.

[0042] In one embodiment, the wire support device may further be provided with a third wire support mechanism and a fourth wire support mechanism, but in view of the moving distance of the rotating head assembly 6, two wire support mechanisms can meet the processing requirements.

[0043] See attached Figure 2As shown, the second wire support mechanism 5 includes a second rod body 51, a second fixed seat 52 and a second wire support assembly 54. The second rod body 51 is vertically inserted into the first fixed seat 44 and can slide up and down along the first fixed seat 44. A second limit block 53 located above the first fixed seat 44 is fixed on the second rod body 51. The lower end surface of the second limit block 53 can abut against the upper end surface of the first fixed seat 44. The diameter of the second limit block 53 is larger than the diameter of the through hole on the first fixed seat 44 for the second rod body 51 to pass through. The second fixed seat 52 is fixedly connected to the second rod body 51 and is located below the first fixed seat 44. The second wire support assembly 54 is fixed on the second fixed seat 52. The second wire support assembly 54 is provided with a second guide hole coaxial with the first guide hole 454 and always located below the first guide hole 454.

[0044] The second wire support mechanism 5 has the same moving principle as the first wire support mechanism 4. The second wire support assembly 54 can be raised and lowered synchronously with the rotating head assembly 6 without the need for an additional drive component, thus saving costs. At the same time, the second wire support assembly 54 is not directly fixed to the lifting block 2. The second wire support assembly 54 can move relative to the lifting block 2 in the vertical direction, so that after the second wire support assembly 54 abuts against the guide plate 71, the rotating head assembly 6 can continue to move downward, thus meeting the processing requirements and not affecting the moving space of the rotating head assembly 6 in the vertical direction.

[0045] See attached Figure 2 and attached Figure 4 As shown, when the second wire support assembly 54 is not in abutment with the guide plate 71 below it, the second wire support assembly 54 and the second fixed seat 52 will move downward due to their own gravity until the second limit block 53 abuts against the first fixed seat 44. At this time, the first limit block 43 also abuts against the first guide seat 41, and the second wire support mechanism 5 and the first wire support mechanism 4 form a linkage. The first wire support assembly 45, the second wire support assembly 54 and the lifting block move up and down at this time.

[0046] When the lifting block 2 moves downward until the second arm assembly 54 abuts against the guide plate 71, the second arm assembly 54 cannot move further downward, but the lifting block 2 can drive the rotating head assembly 6 and the first arm assembly 45 to move downward synchronously. When the lifting block 2 continues to move downward until the first arm assembly 45 and the second arm assembly 54 abut against each other, the first arm assembly 45 cannot move further downward, but the lifting block 2 can drive the rotating head assembly 6 to move further downward until the rotating head assembly 6 reaches the adjacent Figure 5 and attached Figure 6The final position shown. When the rotating head assembly 6 moves up from the final position, at the beginning, the second limit block 53 does not abut against the first fixed seat 44 and the first limit block 43 does not abut against the second guide seat. At this time, only the lifting block 2 drives the rotating head assembly 6 to move up until the first guide seat 41 abuts against the first limit block 43. At this time, the lifting block 2 can drive the first rod body 42, the first fixed seat 44 and the first support wire assembly 45 to move up together, but the second fixed seat 52 remains stationary. The lifting block 2 continues to move up, driving the first fixed seat 44 to move up synchronously until the second limit block 53 abuts against the first fixed seat 44. At this time, the lifting block 2 drives the rotating head assembly 6, the first support wire mechanism 4 and the second support wire mechanism 5 to move up synchronously until they return to the attached Figure 2-4 Initial position shown.

[0047] During this process, when the rotating head assembly 6 is far away from the guide plate 71, the first wire support assembly 45 and the second wire support assembly 54 support the electrode wire. When the rotating head assembly 6 moves downward and is closer to the guide plate 71, the second wire support assembly 54 and the first wire support assembly 45 successively abut against the guide plate 71 and no longer move. At this time, the length of the electrode wire is relatively short, and even without the support of the second wire support assembly 54 and the first wire support assembly 45, it can meet the processing requirements.

[0048] See attached Figure 3 As shown, when the rotating head assembly 6 is in the initial position away from the guide 72, the distance d1 from the second guide hole to the wire outlet of the rotating head assembly 6 is half of the distance d2 from the wire outlet of the rotating head assembly 6 to the guide 72, and the distance d3 from the second guide hole to the first guide hole 454 is half of the distance d1 from the second guide hole to the wire outlet of the rotating head assembly 6. That is, at the initial position, the distance d3 is one-fourth of the distance d2. This distance setting allows the second guide hole to be centered between the wire outlet of the rotating head assembly 6 and the guide 72, and the first guide hole 454 to be centered between the wire outlet of the rotating head assembly 6 and the second guide hole, so as to always provide support for the electrode wire in the centered position during the lifting and lowering process of the rotating head assembly 6.

[0049] In one embodiment, the second rod 51 may not be installed on the first fixed seat 44, but a second guide seat is provided on the lifting block 2, and the second rod 51 is installed on the second guide seat. However, in this case, the length of the second rod 51 needs to be longer, which is more costly.

[0050] In order to allow the second guide wire assembly 54 to be located outside the cavity, a through hole for the baffle to pass through is also provided on the second fixing seat 52 .

[0051] In one embodiment, the second guide wire assembly 54 has the same structure as the first guide wire assembly 45 and is also surrounded by two V-shaped grooves to form a second guide hole.

[0052] In one embodiment, the second guide wire assembly 54 includes only one connecting frame 451, and the second guide hole is directly opened on the connecting frame 451. In this case, the second guide hole is directly punched on the connecting frame 451, and there is no need for a separate positioning plate 453 and a horizontal plate 452, which makes processing more convenient.

[0053] See attached Figure 4 As shown, the module seat 11 is fixed with a first guide rail 111 and a second guide rail 112 arranged at intervals along the second direction (X direction), and the first guide rail 111 and the second guide rail 112 are both located in the cavity. The lifting block 2 slides along the first guide rail 111 and the second guide rail 112, and the first fixed seat 44 and the second fixed seat 52 slide along the first guide rail 111 and the second guide rail 112 respectively. The first guide rail 111 and the second guide rail 112 provide guidance for the lifting and lowering of the lifting block 2, and when the first fixed seat 44 and the second fixed seat 52 are lifted and lowered, in addition to the guidance of the first rod body 42 and the second rod body 51, the first guide rail 111 and the second guide rail 112 are used to guide the movement of the first fixed seat 44 and the second fixed seat 52 respectively.

[0054] Two first sliders are fixed on the lifting block 2, which slide along the first guide rail 111 and the second guide rail 112 respectively. The second slider and the third slider are also fixed on the first fixed seat 44 and the second fixed seat 52 respectively. The second slider and the third slider slide along the first guide rail 111 and the second guide rail 112 respectively. In this embodiment, the first fixed seat 44 and the second fixed seat 52 slide along two different guide rails respectively. When in the final position, the second slider and the third slider are respectively located on the two guide rails, and will not be stacked or interfered, so that the first support wire assembly 45 and the second support wire assembly 54 can be stacked in the vertical direction.

[0055] The rotating head assembly 6 includes a rotating driving member 61 and a rotating head body 62 . The rotating driving member 61 is fixed on the lifting block 2 . The rotating head body 62 is connected to the rotating driving member 61 and rotates under the driving of the rotating driving member 61 .

[0056] In one embodiment, the present invention further discloses an electric spark punching machine, see the attached Fig. 9 As shown, the machine head 100 includes a module base 11, on which is disposed a lifting block 2 which is lifted and lowered under the drive of a first driving assembly 3, on which is fixed a rotating head assembly 6, and on which is disposed the above-mentioned supporting wire device, which can be lifted and lowered synchronously with the lifting block 2 and can move relative to the lifting block 2 in the vertical direction.

[0057] The module base 11 can be raised or lowered under the driving of the second driving assembly to approach or move away from a placement table 200 located below the module base 11 , and a workpiece to be processed is placed on the placement table 200 .

[0058] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire support device, arranged on a machine head, the machine head comprising a module seat, the module seat being provided with a lifting block driven by a first driving assembly to lift and lower, the lifting block being fixed with a rotating head assembly, characterized in that: The wire support device comprises: A first guide seat, wherein the first guide seat is fixedly connected to the lifting block; A first rod body, the first rod body is vertically inserted into the first guide seat and can slide up and down along the first guide seat, a first limit block located at the upper end of the first guide seat is fixed to the first rod body, and the first limit block can abut against the upper end surface of the first guide seat; A first fixing seat, the first fixing seat is fixedly connected to the first rod body and is located below the first guide seat; The first armature assembly is fixed on the first fixing seat, and the first armature assembly is provided with a first guide hole which is coaxial with the rotating head and is always located below the rotating head assembly.

2. The wire support device according to claim 1, characterized in that: The support wire device also includes: a second rod body, the second rod body being vertically inserted into the first fixing seat and being able to slide up and down along the first fixing seat, a second limiting block being fixed to the second rod body and being located at the upper end of the first fixing seat, and the second limiting block being able to abut against the upper end surface of the first fixing seat; a second fixing seat, the second fixing seat being fixedly connected to the second rod body and being located below the first fixing seat; The second wire support assembly is fixed on a second fixing seat, and the second wire support assembly is provided with a second guide hole which is coaxial with the first guide hole and is always located below the first guide hole.

3. The wire support device according to claim 2, characterized in that: The machine head also includes a guide plate fixed at the lower end of the module seat, and a guide coaxial with the first guide hole is provided on the guide plate. The first wire assembly and the second wire assembly can be stacked on the guide plate in the vertical direction to limit the downward movement distance of the first wire assembly and the second wire assembly.

4. The wire support device according to claim 3, characterized in that: When the rotating head assembly is in an initial position away from the guide, the distance from the second guide hole to the wire outlet of the rotating head assembly is half the distance from the wire outlet of the rotating head assembly to the guide, and the distance from the second guide hole to the first guide hole is half the distance from the second guide hole to the wire outlet of the rotating head assembly.

5. The wire support device according to any one of claims 1 to 4, characterized in that: The first wire support assembly includes a connecting frame and a wire support frame fixed on the connecting frame, the position of the wire support frame in a first direction in a horizontal plane is adjustable, the wire support frame includes a horizontal plate and a positioning plate, the horizontal plate is provided with a first notch, the positioning plate is provided with a second notch corresponding to the first notch, the first notch and the second notch can be surrounded to form a first guide hole, and the first notch and the second notch can be close to or away from each other.

6. The wire support device according to claim 5, characterized in that: The horizontal plate is provided with a waist-shaped hole extending along the first direction, and the horizontal plate is fixed by a locking member passing through the waist-shaped hole and the connecting frame; the positioning plate and the horizontal plate are hinged, and the supporting wire frame is provided with a supporting wire driving member for driving the positioning plate to swing in a horizontal plane.

7. The wire support device according to claim 5, characterized in that: The first notch and the second notch are both V-shaped grooves.

8. The wire support device according to any one of claims 2 to 4, characterized in that: The module seat is fixed with a first guide rail and a second guide rail spaced apart along the second direction, the lifting block slides along the first guide rail and the second guide rail, and the first fixing seat and the second fixing seat slide along the first guide rail and the second guide rail respectively.

9. The wire support device according to claim 1, characterized in that: A surrounding plate and a baffle are fixed on the module seat, and the module seat, the surrounding plate and the baffle form a cavity. The first driving assembly is located in the cavity. The lifting block and the first fixed seat are both provided with a clearance hole for the baffle to pass through. The rotating head assembly and the first support wire assembly are located outside the cavity.

10. An electric spark punching machine, characterized in that: It comprises a machine head, which comprises a module seat, on which is arranged a lifting block which is lifted and lowered under the drive of a first driving assembly, on which is fixed a rotating head assembly, and on which is arranged a wire guiding device as described in any one of claims 1 to 9.

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