Cutting wire single-end guide wheel assembly with wire guide structure

Abstract

The utility model provides a cutting wire single-end guide wheel assembly with a guide wire structure, which comprises a bearing support, a support barrel shell, a matching end block and a guide wheel body, the cutting wire single-end guide wheel assembly wraps the support barrel shell outside the matching end block and the guide wheel body, and the guide wheel body can rotate in the support barrel shell. The guide notch extending in the circumferential direction is formed in the outer wall of the supporting barrel shell and is sunken towards the interior of the supporting barrel shell in the radial direction, the cross section of the supporting barrel shell is in a wedge shape, and the width of the supporting barrel shell is gradually enlarged outwards in the radial direction. The width of the avoiding gap at the bottom of the guide notch is consistent with that of the radial outer end of the wire guide groove, and the two radial ends of the support barrel shell are communicated in the radial direction, so that the cutting wire can penetrate through the avoiding gap to accurately enter the wire guide groove, and then the wire penetrating efficiency is improved; the wire conveying channels formed in the two ends of the guide notch can guide the inlet and outlet process of the cutting wire, and the operation stability of the cutting wire is guaranteed.

Description

Technical Field

[0001] The utility model relates to electric spark wire cutting equipment, in particular to a cutting wire single-end guide wheel assembly with a guide wire structure. Background Art

[0002] Patent document CN212858092U discloses a wire cutting guide wheel, which includes a wheel axle and a guide wheel body coaxially formed on the wheel axle, a V-shaped wire groove is provided on the guide wheel body, and a water stop plate and a limit plate fixedly mounted on the wheel axle are provided at both ends of the guide wheel body, a pair of clips are provided on the wheel axle to clamp the water stop plate and the limit plate to the guide wheel body, and a support shaft is formed on the wheel axle at one end of the water stop plate, which adopts a clip structure to install and fix the limit plate and the water stop plate, replacing the mold insert injection molding method, which is conducive to the separate production of the limit plate and the water stop plate, optimizing the mold design, and saving equipment costs. However, the wire groove structure size in this cutting wire guide wheel is extremely small. When installing the cutting wire in the machine tool, it is difficult to put the cutting wire into the wire groove accurately and quickly, which requires high operating skills of the operator and affects the improvement of production efficiency. Therefore, it is necessary to optimize the structure of this guide wheel to overcome the above-mentioned defects. Utility Model Content

[0003] The utility model aims to provide a cutting wire single-end guide wheel assembly with a guide wire structure, so as to facilitate the installation of the cutting wire.

[0004] The technical solution adopted by the present invention to solve its technical problems is:

[0005] A cutting wire single-end guide wheel assembly with a guide wire structure, comprising:

[0006] A bearing support, which is installed in the wire cutting machine through a connecting piece;

[0007] The supporting cylindrical shell is formed on the side of the bearing support and extends to the outside of the bearing support. The supporting cylindrical shell has an assembly space inside and is supported by the bearing support.

[0008] A matching end block is inserted into the supporting cylinder shell, and the supporting cylinder shell supports the matching end block;

[0009] The guide wheel body is mounted on the matching end block through a rotating structure and can rotate on the matching end block. The outer wall of the guide wheel body is provided with a wire guide groove. The cutting wire can be passed through the wire guide groove. The guide wheel body guides the conveying process of the cutting wire.

[0010] in:

[0011] The support cylinder shell is covered on the outside of the matching end block and the guide wheel body, and the guide wheel body can rotate in the support cylinder shell;

[0012] A guide slot is provided in the support cylinder shell. The guide slot is located on the outer wall of the support cylinder shell, extends along the circumference of the support cylinder shell, and is recessed radially into the interior of the support cylinder shell. The cutting wire can enter the guide slot. The circumferential length of the guide slot is less than the circumferential length of the support cylinder shell.

[0013] A avoidance gap is provided in the support cylinder shell, which extends along the bottom of the guide groove and corresponds to the position of the guide wire groove. Its length is less than the length of the guide groove, and its width is greater than the width of the radial outer end of the guide wire groove. The avoidance gap radially penetrates the radial ends of the support cylinder shell, so that the cutting wire in the guide groove can pass through the avoidance gap and enter the guide wire groove, and the guide groove guides its penetration process.

[0014] In one embodiment of the present invention, the cross section of the guide slot is wedge-shaped, and its width gradually expands radially outward, so as to facilitate guiding the process of the cutting wire entering the avoidance slot.

[0015] In one embodiment of the present invention, wire transport channels are respectively provided at both ends of the guide groove, the wire transport channels are connected to the avoidance gap, and extend along the tangential direction of the guide groove. During operation, the cutting wire can enter and exit the guide groove through the wire transport channels, and the wire transport channels guide its entry and exit process.

[0016] In one embodiment of the present invention, a group of locking bolt holes are opened on the side wall of the support cylinder shell, and each locking bolt hole extends along the radial direction of the support cylinder shell, passes through the radial ends of the support cylinder shell, and is evenly arranged along the circumference of the support cylinder shell. The matching end block can be fixed in the support cylinder shell by a locking bolt adapted thereto.

[0017] In one embodiment of the present invention, a positioning step is provided at the inner end of the support cylinder shell. The positioning step protrudes inward along the radial direction of the support cylinder shell and extends along the circumferential direction of the support cylinder shell. The positioning step is adapted to the shape of the matching end block. When the matching end block is inserted into the support cylinder shell, its inner end abuts against the positioning step, and the positioning step positions the matching end block, thereby facilitating accurate installation of the matching end block and the guide wheel body.

[0018] The advantages of the present invention are:

[0019] The cutting wire single-end guide wheel assembly covers the support cylinder shell on the outside of the matching end block and the guide wheel body, and the guide wheel body can rotate in the support cylinder shell, so that its operation process is not easily affected by the outside world. A guide groove extending along the circumferential direction is opened on the outer wall of the support cylinder shell, and is radially recessed toward the inside of the support cylinder shell. The cross-section is wedge-shaped, and the width gradually expands radially outward. This design makes it easier for the cutting wire to enter the guide groove and is gradually guided during the entry process. The width of the avoidance gap at the bottom of the guide groove is consistent with the radial outer end of the guide wire groove, and the radial ends of the support cylinder shell are radially penetrated, which enables the cutting wire to pass through the avoidance gap and accurately enter the guide wire groove, thereby improving the wire threading efficiency. The wire transport channels set at both ends of the guide groove can guide the entry and exit process of the cutting wire to ensure its operation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front structural diagram of a cutting wire single-end guide wheel assembly with a guide wire structure proposed by the present invention;

[0021] Figure 2 1 is a schematic diagram of the back structure of the guide wheel assembly;

[0022] Figure 3 1 is a schematic diagram of the longitudinal section structure of the guide wheel assembly;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the guide wheel assembly. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention 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 invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents selected embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] like Figures 1 to 4As shown, the cutting wire single-end guide wheel assembly with a guide wire structure proposed by the present invention includes a bearing support 100, a support cylinder shell 200, a matching end block 300 and a guide wheel body 400. The bearing support is installed in the wire cutting machine through a connecting piece. The support cylinder shell is formed on the side of the bearing support and extends to the outside of the bearing support. It has an assembly space inside. The bearing support carries the support cylinder shell, and the matching end block is inserted into the support cylinder shell. The supporting cylinder shell supports the matching end block. The guide wheel body is installed on the matching end block through a rotating structure and can be rotated on the matching end block. A guide wire groove 410 is opened on its outer wall. The cutting wire can be passed through the guide wire groove. The guide wheel body guides the conveying process of the cutting wire. The support cylinder shell is covered on the matching end The block and the outside of the guide wheel body, the guide wheel body can rotate in the support cylinder shell, and a guide slot 210 is provided in the support cylinder shell, and the guide slot is located on the outer wall of the support cylinder shell, extending along the circumference of the support cylinder shell and radially recessed toward the inside of the support cylinder shell, and the cutting wire can enter the guide slot, and the circumferential length of the guide slot is less than the circumferential length of the support cylinder shell, and a avoidance gap 220 is provided in the support cylinder shell, which extends along the bottom of the guide slot and corresponds to the position of the guide wire groove, its length is less than the length of the guide slot, and its width is greater than the width of the radial outer end of the guide wire groove, and the avoidance gap radially penetrates the radial ends of the support cylinder shell, so that the cutting wire in the guide slot can pass through the avoidance gap and enter the guide wire groove, and its penetration process is guided by the guide slot.

[0026] In this embodiment, the cross section of the guide slot is wedge-shaped, and its width gradually expands radially outward, so as to facilitate guiding the cutting wire in the process of entering the avoidance gap.

[0027] In this embodiment, a wire transport channel 211 is provided at both ends of the guide groove, which is connected to the avoidance gap and extends along the tangential direction of the guide groove. During operation, the cutting wire can enter and exit the guide groove through the wire transport channel, and the wire transport channel guides its entry and exit process.

[0028] In this embodiment, a group of locking bolt holes 230 are opened on the side wall of the support cylinder shell, and each locking bolt hole extends along the radial direction of the support cylinder shell, passes through the radial ends of the support cylinder shell, and is evenly arranged along the circumference of the support cylinder shell. The matching end block can be fixed in the support cylinder shell by a matching locking bolt.

[0029] In this embodiment, a positioning step 240 is provided at the inner end of the support cylinder shell. The positioning step protrudes inward along the radial direction of the support cylinder shell and extends along the circumferential direction of the support cylinder shell. It is adapted to the shape of the matching end block. When the matching end block is inserted into the support cylinder shell, its inner end abuts against the positioning step, and it is positioned by the positioning step, so that the matching end block and the guide wheel body can be accurately installed in place.

[0030] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", and "right" indicate an orientation or positional relationship, they should be understood as being based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art. 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 operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

Claims

1. A cutting wire single-end guide wheel assembly with a guide wire structure, comprising: A bearing support, which is installed in the wire cutting machine through a connecting piece; A support cylindrical shell is formed on the side of the bearing support and extends to the outside of the bearing support, and has an assembly space inside; A matching end block is inserted into the supporting cylinder shell, and the supporting cylinder shell supports the matching end block; The guide wheel body is mounted on the matching end block through a rotating structure and can rotate on the matching end block, and a wire guide groove is provided on its outer wall; Its characteristics are: The support cylinder shell is covered on the outside of the matching end block and the guide wheel body, and the guide wheel body can rotate in the support cylinder shell; A guide slot is provided in the support cylinder shell. The guide slot is located on the outer wall of the support cylinder shell, extends along the circumference of the support cylinder shell, and is recessed radially into the interior of the support cylinder shell. The cutting wire can enter the guide slot. The circumferential length of the guide slot is less than the circumferential length of the support cylinder shell. A avoidance gap is provided in the support cylinder shell, which extends along the bottom of the guide groove and corresponds to the position of the guide wire groove. Its length is less than the length of the guide groove, and its width is greater than the width of the radial outer end of the guide wire groove. The avoidance gap radially penetrates the radial ends of the support cylinder shell.

2. The cutting wire single-end guide wheel assembly with a guide wire structure according to claim 1, characterized in that: The cross section of the guide slot is wedge-shaped, and its width gradually expands radially outward.

3. The cutting wire single-end guide wheel assembly with a guide wire structure according to claim 1, characterized in that: Wire conveying channels are respectively provided at both ends of the guide groove, the wire conveying channels are communicated with the avoidance gap and extend along the tangent direction of the guide groove.

4. The cutting wire single-end guide wheel assembly with a guide wire structure according to claim 3, characterized in that: A group of locking bolt holes are opened on the side wall of the support cylinder shell, and each locking bolt hole extends along the radial direction of the support cylinder shell, passes through the radial ends of the support cylinder shell, and is evenly arranged along the circumference of the support cylinder shell.

5. The cutting wire single-end guide wheel assembly with a guide wire structure according to claim 1, characterized in that: A positioning step is provided at the inner end of the support cylinder shell. The positioning step protrudes inwardly along the radial direction of the support cylinder shell and extends along the circumferential direction of the support cylinder shell. The positioning step is adapted to the shape of the matching end block.

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