Self-aligning wire drawing die holder and wire drawing machine

Abstract

The utility model relates to the technical field of wire-drawing die holders, in particular to a self-aligning wire-drawing die holder and a wire drawing machine, the self-aligning wire-drawing die holder structurally comprises an inner ring body, the outer ring of the inner ring body forms an ellipsoidal cambered surface, and a wire-drawing die can be mounted on the inner ring of the inner ring body; and the outer ring body is fixed on the wire drawing machine, the outer ring body is arranged outside the inner ring body in a sleeving manner, a matching cambered surface is formed on an inner ring of the outer ring body, and the matching cambered surface is in contact with the ellipsoidal cambered surface. According to the self-aligning wire-drawing die holder and the wire drawing machine, the problem that an existing wire-drawing die is eccentric in the drawing process, and consequently loss is serious can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of wire drawing die seats, and in particular to a self-aligning wire drawing die seat and a wire drawing machine. Background Art

[0002] Wire drawing dies are various dies used to draw metal wires. When the metal wire passes through the die hole, its size will be reduced and even its shape will be changed.

[0003] When using a wire drawing die, it must be securely mounted in the die holder. During the wire drawing process, especially when drawing ultrafine bonding wire, the wire's axis inevitably twists and deviates in multiple directions, leading to eccentricity and deflection of the drawing die. This condition not only increases unilateral wear on the drawing die, shortening its service life, but also leads to frequent, abnormal breakage of the drawn wire, severely impacting drawing efficiency. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a self-aligning wire drawing die base and a wire drawing machine to solve the problem that the existing wire drawing die will become eccentric during the drawing process, resulting in serious loss.

[0005] According to the first aspect of the present invention, a self-aligning wire drawing die seat is provided, wherein the self-aligning wire drawing die seat includes: an inner ring body, the outer ring of the inner ring body is formed into an ellipsoidal arc surface, and the inner ring of the inner ring body can be used to install the wire drawing die; and an outer ring body, which is fixed to the wire drawing machine, and the outer ring body is sleeved on the outside of the inner ring body, and the inner ring of the outer ring body is formed with a matching arc surface, and the matching arc surface is in contact with the ellipsoidal arc surface.

[0006] Preferably, the matching arc surface is inclined from the middle to both sides along the axial direction of the outer ring body in a direction away from the inner ring body.

[0007] Preferably, the ellipsoidal arc surface and the mating arc surface are provided with serrations, the ellipsoidal arc surface is meshed with the mating arc surface, an adjustment space is formed between the mating arc surface and the ellipsoidal arc surface, and the meshing position of the mating arc surface and the ellipsoidal arc surface can change with the movement of the inner ring body.

[0008] Preferably, the ellipsoidal arc surface and the matching arc surface have 8 to 10 pairs of saw teeth meshing with each other.

[0009] Preferably, an angle is formed between a tangent line at an endpoint of the meshing position between the ellipsoidal arc surface and the mating arc surface and the axis of the inner ring body, and the angle is 3° to 10°.

[0010] Preferably, a lubricating oil film is coated between the ellipsoidal arc surface and the matching arc surface.

[0011] Preferably, the inner ring body is made of hardened steel, and the outer ring body is made of polytetrafluoroethylene.

[0012] Preferably, the inner ring of the inner ring body is provided with an annular mounting groove, and the wire drawing die is installed in the mounting groove.

[0013] According to the second aspect of the present invention, a wire drawing machine is provided, wherein the wire drawing machine includes a support seat, a wire drawing machine body, a rotating roller and the self-aligning wire drawing die seat as described above, the support seat is arranged at the end of the wire drawing machine body, the self-aligning wire drawing die seat is installed in the support seat, and the rotating roller is arranged inside the wire drawing machine body.

[0014] Preferably, an annular clamping groove is formed in the middle of the support seat, the outer ring of the outer ring body is formed as a cylindrical surface, the outer ring body is clamped in the clamping groove, and a gap is set between the inner ring body and the end face of the support seat, and the gap is 1mm to 3mm.

[0015] The self-aligning wire drawing die base and wire drawing machine of the embodiment of the present utility model are characterized in that the outer ring of the inner ring body is formed into an ellipsoidal arc surface. The wire drawing die can be installed on the inner ring of the inner ring body. The outer ring body is fixed to the wire drawing machine. The outer ring body is sleeved on the outside of the inner ring body, and the inner ring of the outer ring body is formed with a matching arc surface, and the matching arc surface is in contact with the ellipsoidal arc surface. Such arrangement enables the inner ring body to swing within a certain range. When the inner ring body is deflected, it will be affected by the ellipsoidal structure of the inner ring body and will return to the center of gravity, thereby avoiding the eccentricity of the wire drawing die installed inside the inner ring body. This can effectively solve the problem that the existing wire drawing die will be eccentric during the drawing process, resulting in serious loss.

[0016] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the self-aligning wire drawing die base according to the utility model.

[0019] Figure numerals: 1-inner ring body; 10-ellipsoidal arc surface; 2-outer ring body; 20-matching arc surface; 3-drawing die; 4-wire; 5-support seat; 6-drawing machine body; 7-rotating roller; 8-tangent; 9-angle. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0021] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0022] In the description of the embodiments of the present application, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0023] like Figure 1 As shown, according to the first aspect of the present invention, a self-aligning wire drawing die seat is provided, and the self-aligning wire drawing die seat includes an inner ring body 1 and an outer ring body 2.

[0024] In the following description, reference will be made to Figure 1 The specific structure of the above components of the self-aligning drawing die base and the connection relationship of the above components are described in detail.

[0025] like Figure 1 As shown, in an embodiment, the outer ring of the inner ring body 1 can be formed into an ellipsoidal arc surface 10, and the wire drawing die 3 can be installed in the inner ring of the inner ring body 1. The outer ring body 2 can be fixed to the wire drawing machine. The outer ring body 2 can be sleeved on the outside of the inner ring body 1, and the inner ring of the outer ring body 2 can be formed with a matching arc surface 20. The matching arc surface 20 is in contact with the ellipsoidal arc surface 10, so that the inner ring body 1 can swing within a certain range. When the inner ring body 1 is deflected, it will be affected by the ellipsoidal structure of the inner ring body 1 and the inner ring body 1 will return to the center of gravity, thereby avoiding the eccentricity of the wire drawing die 3 installed inside the inner ring body 1.

[0026] Preferably, Figure 1 As shown, in an embodiment, the outer ring body 2 can be sleeved on the outside of the inner ring body 1, and the inner ring body 1 can be coaxially arranged with the outer ring body 2. The inner ring body 1 can be sleeved on the outside of the wire drawing die 3, and the wire drawing die 3 can be coaxially arranged with the inner ring body 1. The wire rod 4 can be passed through the wire drawing die 3 to draw the metal wire. With such an arrangement, since the outer shape of the inner ring body 1 is approximately ellipsoidal, and the inner ring body 1 and the outer ring body 2 are not fixedly connected, but are limited by an arc surface, the inner ring body can swing, and the inner ring body 1 is affected by the center of gravity and has the function of self-centering, thereby being able to drive the wire drawing die 3 to return to the center.

[0027] Preferably, Figure 1 As shown, in the embodiment, the outer ring of the inner ring body 1 is formed as an ellipsoidal arc surface 10, while the inner ring of the inner ring body 1 can be formed as a cylindrical surface. Preferably, an annular mounting groove can also be formed in the inner ring of the inner ring body 1. The outer ring of the wire drawing die 3 can be formed as a cylindrical surface, so that the outer ring of the wire drawing die 3 can be fixed in the mounting groove of the inner ring body 1, thereby fixing the wire drawing die 3.

[0028] Preferably, Figure 1 As shown, in an embodiment, the outer ring of the outer ring body 2 can be formed into a cylindrical surface. The inner ring of the outer ring body 2 can be formed into a matching cambered surface 20. Specifically, the matching cambered surface 20 can be inclined from the middle to both sides along the axial direction of the outer ring body 2, away from the inner ring body 1. After the inner ring body 1 is installed on the outer ring body 2, the middle of the ellipsoidal cambered surface 10 and the middle of the matching cambered surface 20 are abutted, and space for the inner ring body 1 to swing is formed on both sides (that is, an adjustment space is formed between the matching cambered surface 20 and the ellipsoidal cambered surface 10).

[0029] Preferably, Figure 1As shown, in the embodiment, both the ellipsoidal arc surface 10 and the mating arc surface 20 may be provided with serrations. This allows the ellipsoidal arc surface 10 and the mating arc surface 20 to engage with each other while abutting against each other, thereby strengthening the mating relationship between the inner ring body 1 and the outer ring body 2, allowing the inner ring body 1 to swing regularly, and the meshing position of the mating arc surface 20 and the ellipsoidal arc surface 10 to move with the movement of the inner ring body 1.

[0030] Further, preferably, Figure 1 As shown, in this embodiment, when the inner ring body 1 is installed inside the outer ring body 2, 8 to 10 pairs of serrations can be engaged between the ellipsoidal curved surface 10 and the mating curved surface 20, ensuring sufficient meshing between the inner ring body 1 and the outer ring body 2. Furthermore, a lubricating oil film can be applied between the ellipsoidal curved surface 10 and the mating curved surface 20. This arrangement allows the lubricating oil film to both lubricate and coordinate the positions of the inner ring body 1 and the outer ring body 2.

[0031] In addition, preferably, Figure 1 As shown, in the embodiment, the tangent line 8 ( Figure 1 An angle 9 may be formed between the inner ring body 1 and the axis of the inner ring body 1 (for illustration only). More preferably, the angle 9 may be 3° to 10°. That is, the vertex of the ellipsoidal arc surface 10 is not set at the center of the inner ring body 1 in the axial direction. Similarly, the vertex of the matching arc surface 20 is not set at the center of the outer ring body 2 in the axial direction. The ellipsoidal arc surface 10 may be set symmetrically with the matching arc surface 20.

[0032] Specifically, in an embodiment, the angle 9 can be 8°. Due to the existence of the angle 9, the inner ring body 1 has a certain degree of freedom. During the process of drawing the metal wire by the wire drawing machine, the inner ring body 1 can follow the wire 4 and deviate from the axis by 16°.

[0033] Preferably, in an embodiment, the inner ring body 1 can be made of hardened steel, and the outer ring body 2 can be made of polytetrafluoroethylene. This arrangement combines the high hardness of hardened steel with the low friction of polytetrafluoroethylene, reducing the possibility of damage caused by meshing friction between the inner and outer ring bodies 1 and 2. Furthermore, the higher density of hardened steel makes the inner ring body 1 more easily oriented due to the influence of its center of gravity.

[0034] In addition, if Figure 1 As shown, according to the second aspect of the present invention, a wire drawing machine is provided, which includes a support base 5, a wire drawing machine body 6, a rotating roller 7 and the self-aligning wire drawing die base as described above.

[0035] Preferably, Figure 1As shown, in the embodiment, the support seat 5 can be formed at the end of the wire drawing machine body 6 (which can be as shown in FIG. Figure 1 The self-aligning drawing die seat can be installed in the support seat 5. The rotating roller 7 is arranged inside the wire drawing machine body 6. The wire 4 can pass through the drawing die 3 and the support seat 5 and cooperate with the rotating roller 7 to draw the metal wire.

[0036] Further, preferably, Figure 1 As shown, in an embodiment, an annular snap-fit ​​groove may be formed in the middle of the support seat 5. The outer ring of the outer ring body 2 can be snapped into the snap-fit ​​groove, so that the outer ring body 2 can be fixedly mounted on the support seat 5. At the same time, a gap may be provided between the side surface of the inner ring body 1 close to the support seat 5 and the end surface of the support seat 5 to prevent interference between the inner ring body 1 and the support seat 5 during the swinging process. Preferably, the size of the gap may be 1 mm to 3 mm.

[0037] During use, the inner ring body 1 and the outer ring body 2 can be assembled by meshing multiple pairs of serrations and then fixed in the clamping groove of the support seat 5. The support seat 5 is then fixed to the wire drawing machine body 6 by bolts. A lubricating oil film is then applied between the inner ring body 1 and the outer ring body 2. After the wire drawing die 3 is placed on the inner ring body 1, the wire 4 can be drawn. During the drawing process, when the wire 4 deviates from the axial direction, the inner ring body 1 can follow the wire 4 and deviate to a certain angle, avoiding severe distortion of the wire 4 and wire breakage due to unilateral wear. At the same time, the inner ring body 1 can automatically return to its original position under the influence of the center of gravity, so that the wire 4 is also corrected. This can avoid unilateral wear and frequent wire breakage and die loss problems caused by the distortion of the wire 4 during the drawing process, especially during the drawing process of ultra-fine bonding wires. With this arrangement, there is no need for manual adjustment, which can significantly improve the efficiency of drawing the wire 4.

[0038] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed in the present application, or perform equivalent replacements for some of the technical features thereof. These modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims.

Claims

1. A self-aligning wire drawing die base, provided on a wire drawing machine, characterized in that: The self-aligning drawing die base comprises: An inner ring body, wherein the outer ring of the inner ring body is formed into an ellipsoidal arc surface, and the inner ring of the inner ring body can be installed with a wire drawing die; and The outer ring body is fixed to the wire drawing machine. The outer ring body is sleeved on the outside of the inner ring body. The inner ring of the outer ring body is formed with a matching arc surface, and the matching arc surface is in contact with the ellipsoidal arc surface.

2. The self-aligning wire drawing die base according to claim 1, characterized in that: The matching arc surface is inclined from the middle to both sides along the axial direction of the outer ring body in a direction away from the inner ring body.

3. The self-aligning wire drawing die base according to claim 2, characterized in that: The ellipsoidal arc surface and the mating arc surface are provided with serrations, the ellipsoidal arc surface is meshed with the mating arc surface, an adjustment space is formed between the mating arc surface and the ellipsoidal arc surface, and the meshing position of the mating arc surface and the ellipsoidal arc surface can change with the movement of the inner ring body.

4. The self-aligning wire drawing die base according to claim 3, characterized in that: The ellipsoidal arc surface and the matching arc surface have 8 to 10 pairs of saw teeth meshing with each other.

5. The self-aligning wire drawing die base according to claim 3, characterized in that: An angle is formed between a tangent line at an endpoint of a meshing position between the ellipsoidal arc surface and the matching arc surface and the axis of the inner ring body, and the angle is 3° to 10°.

6. The self-aligning wire drawing die base according to claim 1, characterized in that: A lubricating oil film is coated between the ellipsoidal arc surface and the matching arc surface.

7. The self-aligning wire drawing die base according to claim 1, characterized in that: The material of the inner ring body is hardened steel, and the material of the outer ring body is polytetrafluoroethylene.

8. The self-aligning wire drawing die base according to claim 1, characterized in that: The inner ring of the inner ring body is provided with an annular mounting groove, and the wire drawing die is installed in the mounting groove.

9. A wire drawing machine, characterized in that: The wire drawing machine includes a support seat, a wire drawing machine body, a rotating roller and a self-aligning wire drawing die seat according to any one of claims 1 to 8, the support seat is arranged at the end of the wire drawing machine body, the self-aligning wire drawing die seat is installed in the support seat, and the rotating roller is arranged inside the wire drawing machine body.

10. The wire drawing machine according to claim 9, characterized in that An annular clamping groove is formed in the middle of the support seat, the outer ring of the outer ring body is formed as a cylindrical surface, the outer ring body is clamped in the clamping groove, and a gap is set between the inner ring body and the end face of the support seat, and the gap is 1mm to 3mm.

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