Eye mold for wire cutting

Abstract

The utility model relates to the technical field of wire cutting equipment, in particular to an eye die for wire cutting, which comprises a first eye die holder group and a second eye die holder group movably arranged in the first eye die holder group, the first eye die holder group comprises two symmetrically arranged first eye die holders, a first threading eye die core and a first threading eye die half hole; the second eye mold base set comprises two symmetrically-arranged second eye mold bases, a second wire penetrating hole mold core and a second wire penetrating hole mold half hole. A linkage piece is arranged between the first eye mold base set and the second eye mold base set, and when the two first eye mold bases get close to each other or get away from each other, the linkage piece drives the two second eye mold bases to get close to each other or get away from each other; when the two first eye die holders are close to each other and tightly attached to each other, a first direction gap and a first wire threading eye die hole are formed; when the two second eye mold bases are close to each other and tightly attached to each other, a second direction gap and a second wire penetrating eye mold hole corresponding to the first wire penetrating eye mold hole are formed; and the first direction gap and the second direction gap are not on the same straight line in the vertical direction.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting equipment, in particular to an eye mold used for wire cutting. Background Art

[0002] Wire cutting is the abbreviation of CNC wire-cutting of electrical discharge. Wire cutting uses a moving metal wire as a tool electrode, passes a pulse current between the metal wire and the workpiece, and uses the erosion effect of pulse discharge to cut the workpiece. Since the wire-cutting machine uses a continuously moving thin metal wire as an electrode to process the workpiece, the eye mold is an indispensable part of the wire-cutting machine. Through the use of the eye mold, the stable thin metal wire can be continuously cut without shaking during movement, so as to achieve the purpose of high shape accuracy and high surface finish of the workpiece cut by spark discharge.

[0003] However, the existing eye mold cannot adapt to wires of different diameters due to the fixed wire threading hole, which limits its flexibility in different processing tasks. When the wire diameter needs to be changed, the entire eye mold may need to be replaced or cumbersome adjustments may be made, which reduces processing efficiency. Utility Model Content

[0004] The utility model aims to provide an eye mold for wire cutting, which can improve the flexibility and adaptability of use and meet the needs of different processing tasks.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] An eye mold for wire cutting, comprising a first eye mold seat group and a second eye mold seat group movably arranged in the first eye mold seat group;

[0007] The first eye mold seat group includes two symmetrically arranged first eye mold seats, and the first threading eye mold cores are respectively arranged on opposite sides of the two first eye mold seats, and the middle of the first threading eye mold core is provided with a first threading eye mold half hole;

[0008] The second eye mold seat group includes two symmetrically arranged second eye mold seats, and the second threading eye mold cores are respectively arranged on opposite sides of the two second eye mold seats, and the middle of the second threading eye mold core is provided with a second threading eye mold half hole;

[0009] The second eye mold seat group is arranged on one side of the first eye mold seat group in the vertical direction;

[0010] A linkage member is provided between the first eye mold seat group and the second eye mold seat group, and when the two first eye mold seats are moved closer to or farther away from each other, the linkage member drives the two second eye mold seats to move closer to or farther away from each other;

[0011] When the two first eyelet mold seats are close to each other, the two first threading eyelet mold cores form a first direction gap, and the two first threading eyelet mold half holes form a first threading eyelet mold hole;

[0012] When the two second eyelet mold seats are close to each other, the two second threading eyelet mold cores form a second direction gap, and the two second threading eyelet mold half holes form a second threading eyelet mold hole, and the second threading eyelet mold hole is arranged corresponding to the first threading eyelet mold hole;

[0013] The first direction gap and the second direction gap are not on the same straight line in the vertical direction.

[0014] Preferably, at least two mounting grooves are arranged on the opposite side of the two second eye mold seats, and the two mounting grooves are respectively arranged at the two ends of the second eye mold seats, and the linkage member is a reset spring, and the reset springs are respectively arranged in the two mounting grooves, and under the elastic force of the reset springs, the two second eye mold seats have a tendency to move away from each other.

[0015] Preferably, a triangular groove is provided on one side of the first eye mold seat facing the second eye mold seat, and when the two first eye mold seats are close to each other, the two triangular grooves are close to each other and merge to form a diamond groove;

[0016] The two second eye mold seats are respectively triangular pieces, and the two second eye mold seats are close to each other and merged to form a rhombus-shaped piece;

[0017] The two second eye mold seats are embedded in the two triangular grooves, and the side surfaces of the second eye mold seats are in contact with the groove walls of the triangular grooves.

[0018] Preferably, a first half groove is provided on the groove edge of the triangular groove;

[0019] The edge of the second eye mold seat is provided with a second half groove;

[0020] A guide through hole is formed at a corner of the triangular groove away from the first direction gap;

[0021] When the side surface of the second eye mold seat fits with the groove wall of the triangular groove, the first half groove and the second half groove form a guide channel, and the guide through hole is connected to the guide channel, a needle roller is installed in the guide channel, and the needle roller is installed in the guide channel through the guide through hole, and the needle roller is used for guiding.

[0022] Preferably, the first wire threading eyelet die half hole comprises a first conical half hole and a first guide half hole which are connected in sequence, and the first guide half hole is arranged close to the second wire threading eyelet die hole.

[0023] Preferably, the cross-sectional shape of the second wire threading die half hole comprises a second conical half hole and a second guide half hole connected in sequence, and the second guide half hole is arranged close to the first wire threading die hole.

[0024] Preferably, the sides of the two first eye mold seats are each provided with a connecting portion, and the connecting portion is used to connect to an external driving structure.

[0025] One of the above technical solutions has the following beneficial effects:

[0026] (1) Corresponding setting: The first wire threading eyelet die hole and the second wire threading eyelet die hole are set correspondingly, which means that their positions and sizes are matched to ensure that the metal wire can be smoothly threaded through these two holes.

[0027] (2) Offset setting: The first direction gap and the second direction gap are offset, which can limit the movement of the metal wire in the radial direction on the first eye die seat group and the second eye die seat group, thereby ensuring the cutting accuracy and stability.

[0028] (3) Linkage setting: The synchronous adjustment of the first eye die holder group and the second eye die holder group is realized, which improves the accuracy and efficiency of wire cutting processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an eye mold in an eye mold for wire cutting of the utility model from one viewing angle;

[0030] Figure 2 It is a structural schematic diagram of another viewing angle of an eye mold in an eye mold for wire cutting of the utility model;

[0031] Figure 3 yes Figure 2 Explosion diagram of

[0032] Figure 4 It is a structural schematic diagram of a first eye mold seat of an eye mold in an eye mold for wire cutting of the utility model;

[0033] Figure 5 It is a structural schematic diagram of a second eye mold seat of an eye mold in an eye mold for wire cutting of the utility model;

[0034] In the accompanying drawings: the first eye die seat group 41, the first wire threading eye die hole 410, the first eye die seat 411, the first wire threading eye die core 412, the first wire threading eye die half hole 413, the connecting part 414, the triangular groove 415, the first half groove 416, the exhaust hole 417, the first conical half hole 4131, the first guide half hole 4132, the second eye die seat group 42, the second wire threading eye die hole 420, the second eye die seat 421, the second wire threading eye die core 422, the second wire threading eye die half hole 423, the mounting groove 424, the second half groove 425, the second conical half hole 4231, the second guide half hole 4232, and the linkage part 5. DETAILED DESCRIPTION

[0035] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figure 1-5 As shown, an eye mold for wire cutting includes a first eye mold seat group 41 and a second eye mold seat group 42 movably arranged in the first eye mold seat group 41;

[0040] The first eye mold seat group 41 includes two symmetrically arranged first eye mold seats 411, and the first threading eye mold cores 412 are respectively arranged on opposite sides of the two first eye mold seats 411, and the middle of the first threading eye mold cores 412 is provided with a first threading eye mold half hole 413;

[0041] The second eye mold seat group 42 includes two symmetrically arranged second eye mold seats 421, and the second threading eye mold cores 422 are respectively arranged on opposite sides of the two second eye mold seats 421, and the middle of the second threading eye mold cores 422 is provided with a second threading eye mold half hole 423;

[0042] The second eye mold seat group 42 is arranged on one side of the first eye mold seat group 41 in the vertical direction;

[0043] A linkage member 5 is disposed between the first eye mold seat group 41 and the second eye mold seat group 42. When the two first eye mold seats 411 move closer to or farther from each other, the linkage member 5 drives the two second eye mold seats 421 to move closer to or farther from each other.

[0044] When the two first eyelet mold seats 411 are close to each other, the two first threading eyelet mold cores 412 form a first direction gap, and the two first threading eyelet mold half holes 413 form a first threading eyelet mold hole 410;

[0045] When the two second eyelet mold seats 421 are close to each other, the two second threading eyelet mold cores 422 form a second direction gap, and the two second threading eyelet mold half holes 423 form a second threading eyelet mold hole 420, and the second threading eyelet mold hole 420 is arranged corresponding to the first threading eyelet mold hole 410;

[0046] The first direction gap and the second direction gap are not on the same straight line in the vertical direction.

[0047] In order to ensure the stability and accuracy of the entire eye mold 4, a linkage mechanism is designed between the first eye mold seat group 41 and the second eye mold seat group 42 through the linkage member 5. When the two first eye mold seats 411 approach each other, the two second eye mold seats 421 also approach each other accordingly. This linkage design ensures that when the first direction gap and the first threading eye mold hole 410 change, the second direction gap and the second threading eye mold hole 420 also change gradually.

[0048] When the two first eye mold seats 411 are merged, a first direction gap is formed between them. The first direction gap is located between the two first eye mold seats 411, and is used to limit the movement of the metal wire in other directions. At the same time, the two first wire threading eye mold half holes 413 are merged into a complete first wire threading eye mold hole 410, which is used for the wire threading operation.

[0049] When the two second eye mold seats 421 are combined, a second direction gap is formed between them, which is perpendicular to the first direction gap and is used to limit the movement of the metal wire in the first direction. At the same time, the two second wire threading eye mold half holes 423 are combined into a complete second wire threading eye mold hole 420, which is set corresponding to the first wire threading eye mold hole 410 and is used for the wire threading operation of the metal wire.

[0050] The utility model drives the linkage mechanism of the two first eye die seats 411 by adjusting the two first eye die seats 411. When the metal wire needs to be threaded, the two first eye die seats 411 are moved away from each other by the driving structure 3, and the two second eye die seats 421 are driven to move away from each other. At this time, the aperture of the first threading eye die hole 410 and the aperture of the second threading eye die hole 420 are both enlarged, which is convenient for the threading operation of the metal wire. After the threading operation of the metal wire is completed, the two first eye die seats 411 are brought closer to each other, and the two second eye die seats 421 are driven to be closer to each other. At this time, the aperture of the first threading eye die hole 410 and the aperture of the second threading eye die hole 420 are both reduced and the metal wire plays a role in guiding and stabilizing the wire. The mutually perpendicular first direction gap and second direction gap can prevent the metal wire from moving in the radial direction, thereby ensuring the stability and accuracy of the metal wire during the processing. In addition, the linkage mechanism between the first eye die seat group 41 and the second eye die seat group 42 can also improve the convenience and efficiency of operation, and reduce the time and error of manual adjustment.

[0051] To further explain, at least two installation grooves 424 are arranged on the opposite side of the two second eye mold seats 421, and the two installation grooves 424 are respectively arranged at the two ends of the second eye mold seat 421, and the linkage member 5 is a reset spring, and the two installation grooves 424 are respectively provided with the reset springs, and under the elastic force of the reset springs, the two second eye mold seats 421 have a tendency to move away from each other.

[0052] Specifically, at least two mounting grooves 424 are carefully designed on the opposite sides of the second eye mold seat 421, and the two mounting grooves 424 are symmetrically arranged at the two ends of the second eye mold seat 421 to achieve balanced force distribution. The reset spring as the linkage member 5 is cleverly embedded in each mounting groove 424, thereby constructing an efficient elastic linkage system. Under the natural elastic force of the reset spring, the two second eye mold seats 421 always maintain a tendency to separate from each other, ensuring the stability of the structure and the flexibility of operation. Once an external force acts on the two first eye mold seats 411 and simultaneously brings the two first eye mold seats 411 and the two second eye mold seats 421 closer to each other, the reset spring will be temporarily compressed to adapt to the change in force.

[0053] To further illustrate, a triangular groove 415 is provided on one side of the first eye mold seat 411 facing the second eye mold seat 421. When the two first eye mold seats 411 are close to each other, the two triangular grooves 415 are close to each other and merge to form a diamond groove.

[0054] The two second eye mold seats 421 are respectively triangular pieces, and the two second eye mold seats 421 are close to each other and merged to form a diamond-shaped piece;

[0055] The two second eye mold seats 421 are embedded in the two triangular grooves 415 , and the side surfaces of the second eye mold seats 421 are in contact with the groove walls of the triangular grooves 415 .

[0056] Wedging and linkage design based on geometric shapes. First, as the two first eye mold seats 411 approach each other, their bottom triangular grooves 415 will gradually merge into a complete rhombus groove. At this time, due to the geometric characteristics of the rhombus groove, the two second eye mold seats 421 embedded therein will also move accordingly. Specifically, as the side length of the rhombus groove gradually shortens, the two second eye mold seats 421 will be squeezed by the rhombus groove, thereby moving along the diagonal direction of the rhombus groove to achieve a gradually approaching effect. This wedging and linkage mechanism ensures that the two second eye mold seats 421 can move synchronously when the first eye mold seat 411 approaches, achieving a precise linkage effect, and no additional mechanical connectors are required, reducing the possibility of wear and loosening, thereby enhancing durability.

[0057] To further illustrate, the groove edge of the triangular groove 415 is provided with a first half groove 416;

[0058] The edge of the second eye mold seat 421 is provided with a second half groove 425;

[0059] A guide through hole 417 is formed at a corner of the triangular groove 415 away from the first direction gap;

[0060] When the side surface of the second eye mold seat 421 fits with the groove wall of the triangular groove 415, the first half groove 416 and the second half groove 425 form a guide channel, and the guide through hole 417 is connected to the guide channel, and a roller is installed in the guide channel. The roller is installed in the guide channel through the guide through hole 417, and the roller is used for guiding.

[0061] Specifically, the combination of the first half groove 416 and the second half groove 425 makes the formation of the installation channel simple and intuitive. The needle roller is not shown in the drawings as a guide element. Through the connection between the guide through hole 417 and the installation channel, accurate control of the assembly process is achieved. When the two first eye mold seats 411 drive the two second eye mold seats 421 to move closer to or away from each other, the movement of the needle roller in the guide channel ensures the accuracy and stability of the assembly.

[0062] To further explain, the first wire threading die half hole 413 includes a first conical half hole 4131 and a first guide half hole 4132 which are connected in sequence, and the first guide half hole 4132 is arranged close to the second wire threading die hole 420.

[0063] To further explain, the cross-sectional shape of the second wire threading die half hole 423 includes a second conical half hole 4231 and a second guide half hole 4232 connected in sequence, and the second guide half hole 4232 is arranged close to the first wire threading die hole 410.

[0064] Specifically, the first wire threading die half hole 413 cleverly combines the first conical half hole 4131 and the first guide half hole 4132, wherein the first conical half hole 4131 is responsible for initially guiding the metal wire to enter, while the first guide half hole 4132 is arranged close to the second wire threading die hole 420, ensuring that the metal wire can smoothly transition to the next stage.

[0065] The second threading eyelet half hole 423 also adopts an innovative design, which is formed by sequentially connecting the second tapered half hole 4231 and the second guide half hole 4232. The second tapered half hole 4231 is used to further adjust and stabilize the traveling direction of the metal wire, while the second guide half hole 4232 is adjacent to the first guide half hole 4132 of the first threading eyelet hole 410, forming a continuous guide channel.

[0066] This design allows the metal wire to first enter from the first tapered half hole 4131 of the first wire threading eyelet die hole 410, and then smoothly transition to the second tapered half hole 4231 of the second wire threading eyelet die hole 420 after being precisely guided by the first guide half hole 4132, and finally complete the entire wire threading process in the second guide half hole 4232. During the entire process, the metal wire is continuously and stably guided, thereby significantly improving the efficiency and accuracy of wire threading.

[0067] To further explain, the sides of the two first eye mold seats 411 are each provided with a connecting portion 414, and the connecting portion 414 is used to connect to an external driving structure.

[0068] In this embodiment, the sides of the two first eye mold seats 411 are carefully designed with connecting parts 414, and the two connecting parts 414 are specifically used to accurately and stably connect with the external driving structure. Through this design, the external driving structure can directly and efficiently act on the first eye mold seat 411 to achieve precise control of its movement.

[0069] At the same time, the design of the connecting portion 414 also takes into account the convenience of maintenance and replacement. When the first eye mold base 411 needs to be repaired or replaced, the external driving structure can be easily separated from the connecting portion, thereby simplifying the operation process and reducing maintenance costs.

[0070] In short, through the cooperation of the carefully designed connection part and the external driving structure, the movement of the first eye mold base 411 is accurately controlled, the production efficiency and product quality are improved, and the maintenance cost is also reduced.

[0071] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An eye mold for wire cutting, characterized in that: It comprises a first eye mold seat group (41) and a second eye mold seat group (42) movably arranged in the first eye mold seat group (41); The first eye mold seat group (41) comprises two symmetrically arranged first eye mold seats (411), and the first threading eye mold cores (412) are respectively provided on opposite sides of the two first eye mold seats (411), and the middle of the first threading eye mold cores (412) is provided with a first threading eye mold half hole (413); The second eye mold seat group (42) comprises two symmetrically arranged second eye mold seats (421), and the two second eye mold seats (421) are respectively provided with a second threading eye mold core (422) on opposite sides thereof, and a second threading eye mold half hole (423) is provided in the middle of the second threading eye mold core (422); The second eye mold seat group (42) is arranged on one side of the first eye mold seat group (41) in the vertical direction; A linkage member (5) is provided between the first eye mold seat group (41) and the second eye mold seat group (42); when the two first eye mold seats (411) move closer to or farther from each other, the linkage member (5) drives the two second eye mold seats (421) to move closer to or farther from each other; When the two first eyelet mold seats (411) are close to each other, the two first threading eyelet mold cores (412) form a first directional gap, and the two first threading eyelet mold half holes (413) form a first threading eyelet mold hole (410); When the two second eyelet mold seats (421) are close to each other, the two second threading eyelet mold cores (422) form a second directional gap, and the two second threading eyelet mold half holes (423) form a second threading eyelet mold hole (420), and the second threading eyelet mold hole (420) is arranged corresponding to the first threading eyelet mold hole (410); The first direction gap and the second direction gap are not on the same straight line in the vertical direction.

2. The eye mold for wire cutting according to claim 1, characterized in that: At least two installation grooves (424) are arranged on opposite sides of the two second eye mold seats (421); the two installation grooves (424) are respectively arranged at two ends of the second eye mold seat (421); the linkage member (5) is a return spring; the two installation grooves (424) are respectively provided with the return spring; under the elastic force of the return spring, the two second eye mold seats (421) have a tendency to move away from each other.

3. The eye mold for wire cutting according to claim 1, characterized in that: A triangular groove (415) is provided on one side of the first eye mold seat (411) facing the second eye mold seat (421); when the two first eye mold seats (411) are close to each other, the two triangular grooves (415) are close to each other and merge to form a diamond groove; The two second eye mold seats (421) are respectively triangular pieces, and the two second eye mold seats (421) are close to each other and merged to form a diamond-shaped piece; The two second eye mold seats (421) are embedded in the two triangular grooves (415), and the side surfaces of the second eye mold seats (421) are in contact with the groove walls of the triangular grooves (415).

4. The eye mold for wire cutting according to claim 3, characterized in that: A first half groove (416) is formed on the groove edge of the triangular groove (415); A second half groove (425) is formed on the edge of the second eye mold seat (421); A guide through hole (417) is formed at a corner of the triangular groove (415) away from the first directional gap; When the side surface of the second eye mold seat (421) fits against the groove wall of the triangular groove (415), the first half groove (416) and the second half groove (425) form a guide channel, and the guide through hole (417) is connected to the guide channel. A roller is installed in the guide channel. The roller is installed in the guide channel through the guide through hole (417) and is used for guidance.

5. The eye mold for wire cutting according to claim 2, characterized in that: The first threading eyelet half hole (413) comprises a first tapered half hole (4131) and a first guide half hole (4132) which are connected in sequence, and the first guide half hole (4132) is arranged close to the second threading eyelet hole (420).

6. The eye mold for wire cutting according to claim 2, characterized in that: The cross-sectional shape of the second threading eyelet half hole (423) comprises a second tapered half hole (4231) and a second guide half hole (4232) which are connected in sequence, and the second guide half hole (4232) is arranged close to the first threading eyelet hole (410).

7. The eye mold for wire cutting according to claim 1, characterized in that: The sides of the two first eye mold seats (411) are each provided with a connecting portion (414), and the connecting portion (414) is used to connect to an external driving structure.

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