Integrally-formed guide wheel of spherical guide structure

Abstract

The utility model relates to the technical field of linear cutting, in particular to an integrally-formed guide wheel of a spherical guide structure. The device comprises a main shaft, the middle of the main shaft is sleeved with a guide wheel tightening sleeve, the guide wheel tightening sleeve is provided with a guide wheel sheet, the guide wheel sheet is detachably matched with the guide wheel tightening sleeve, the middle of the periphery of the guide wheel sheet is provided with a pit used for containing metal wires, the two sides of the guide wheel sheet are each provided with a spherical wire guider, and the two ends of the main shaft are each sleeved with a shell. Notches symmetrically formed in the two sides of the guide wheel sheet are concentrically formed in the end, close to the spherical yarn guide, of the shell, an annular covering piece is integrally formed on the corresponding shell on the side, away from the main shaft, in the notches, and the outer end of the spherical yarn guide is located in the notches, so that the spherical yarn guide is covered with the covering piece. And a sealing ring is arranged between one end of the shell close to the guide wheel sheet and the guide wheel tightening sleeve. By means of the technical scheme, the problems that forging cost is high, and conductive metal wires are not prone to being hung are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting, in particular to a guide wheel with an integrally formed spherical guide structure. Background Art

[0002] Wire cutting refers to a processing method that uses a moving metal wire as an electrode wire. The metal wire, such as molybdenum wire, copper wire or alloy wire, relies on pulsed electric spark discharge between the electrode wire and the workpiece to generate high temperature to melt or vaporize the metal, forming a slit, thereby cutting out the parts.

[0003] The guide wheel is an important component used in the electric spark wire cutting machine and is also a part that is easily worn. Its quality directly affects the positioning stability of the metal wire in space. The guide wheel in the existing technology is forged from chrome steel, which is expensive and has the problem that the conductive metal wire is difficult to hang. Utility Model Content

[0004] In order to solve the problems in the related art, the utility model provides a guide wheel with an integrally formed spherical guide structure, which solves the problems of high forging cost and difficulty in hanging up the conductive metal wire.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] The utility model provides an integrally formed guide wheel of a spherical guide structure, including a main shaft, a guide wheel tightly sleeved in the middle of the main shaft, a guide wheel piece installed on the guide wheel tight sleeve, the guide wheel piece and the guide wheel tight sleeve being detachably matched, a recess for accommodating a metal wire is provided in the middle of the outer periphery of the guide wheel piece, and spherical wire guides are provided on both sides of the guide wheel piece; both ends of the main shaft are sleeved with an outer shell, and the end of the outer shell close to the spherical wire guide has concentric notches symmetrically arranged on both sides of the guide wheel piece, and an annular cover is integrally formed on the outer shell corresponding to the side of the notch away from the main shaft, and the outer end of the spherical wire guide is located in the notch, so that the cover covers the spherical wire guide.

[0007] In the above scheme, the setting of the spherical wire guide makes it easy to hang the metal wire, reduces the difficulty of wire threading, and at the same time reduces the labor time for wire threading, reduces the labor cost during wire threading, and improves production efficiency. The setting of the cover prevents the metal wire from falling, and the main shaft, guide wheel and guide wheel sleeve in the device can be disassembled, which is convenient for manufacturing and reduces manufacturing costs, thereby solving the problem of high forging costs.

[0008] The guide wheel and tight sleeve are composed of a first sleeve and a second sleeve. A first convex ring is provided in the middle of the first sleeve, and a second convex ring is provided at the end of the second sleeve close to the first sleeve. The guide wheel piece is located between the first convex ring and the second convex ring, and the guide wheel and tight sleeve is tightly connected to the main shaft.

[0009] In the above scheme, the guide wheel and the tight sleeve are set to fix the guide wheel piece.

[0010] A slot for accommodating the component is provided in the shell, a bearing is provided in the slot, a center hole of the bearing is adapted to the main shaft, and the bearing and the main shaft are rotationally matched.

[0011] In the above scheme, the setting of the bearing can reduce the friction and wear of the guide wheel during movement, maintain the stability of the guide wheel on its movement trajectory, and effectively extend the service life of the guide wheel.

[0012] The guide wheel piece and the spherical wire guide are connected to form an integrated structure through injection molding.

[0013] The above solution adopts one-piece molding, which is convenient for improving production efficiency. There is no need to weld the spherical wire guides to the guide wheel piece one by one, which greatly reduces the production cost.

[0014] A sealing ring is provided between one end of the shell close to the guide wheel piece and the guide wheel.

[0015] In the above solution, the sealing ring is provided to improve the sealing effect, prevent cutting fluid from entering the bearing and thus damaging the bearing, thereby improving the durability of the bearing and ensuring the normal operation and service life of the device.

[0016] The ends of the shell away from the guide wheel are each provided with a cap.

[0017] The above solution has the following advantages:

[0018] The guide wheel of the present invention is a kind of guide wheel of the present invention, and the guide wheel of the present invention is a kind of guide wheel of the present invention.

[0019] 2. The guide wheel tightening sleeve consists of a first sleeve body and a second sleeve body, a first convex ring is provided in the middle of the first sleeve body, and a second convex ring is provided at the end of the second sleeve body close to the first sleeve body, the guide wheel piece is located between the first convex ring and the second convex ring, the guide wheel tightening sleeve is tightly connected to the main shaft for fixing the guide wheel piece, and an empty groove for accommodating components is provided in the outer shell, and a bearing is provided in the empty groove, which can reduce the friction and wear of the guide wheel piece during movement, maintain the stability of the guide wheel piece on its motion trajectory, and effectively extend the service life of the guide wheel. The guide wheel piece and the spherical wire guide are connected into an integrated structure by injection molding, which is convenient for improving production efficiency and does not require welding the spherical wire guides to the guide wheel piece one by one, which greatly reduces the production cost. A sealing ring is provided between the end of the outer shell close to the guide wheel piece and the guide wheel tightening sleeve to improve the sealing effect, prevent cutting fluid from entering the bearing, thereby damaging the bearing, improve the durability of the bearing, and ensure the normal operation and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the present invention is further described in detail below based on specific embodiments of the utility model in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 It is a cross-sectional view of a guide wheel with an integrally formed spherical guide structure;

[0022] Figure 2 This is a structural schematic diagram of a guide wheel piece and a spherical wire guide in a guide wheel with an integrally formed spherical guide structure;

[0023] Figure 3 This is an enlarged schematic diagram of part A of a guide wheel with an integrally formed spherical guide structure;

[0024] Explanation of the reference numerals: 1. Main shaft; 2. Guide wheel and tight sleeve; 201. First sleeve; 202. Second sleeve; 3. Guide wheel piece; 4. Ball wire guide; 5. Housing; 6. Notch; 7. Cover; 8. First convex ring; 9. Second convex ring; 10. Bearing; 11. Sealing ring; 12. Cap. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figures 1 to 3 As shown, the utility model is a guide wheel with a spherical guide structure integrally formed, including a main shaft 1, a guide wheel and a tight sleeve 2 is sleeved in the middle of the main shaft 1, a guide wheel piece 3 is mounted on the guide wheel and tight sleeve 2, the guide wheel piece 3 and the guide wheel and tight sleeve 2 are detachably matched, a depression for accommodating a metal wire is provided in the middle of the outer periphery of the guide wheel piece 3, spherical wire guides 4 are provided on both sides of the guide wheel piece 3, both ends of the main shaft 1 are sleeved with a shell 5, and the end of the shell 5 close to the spherical wire guide 4 is concentrically provided with notches 6 symmetrically arranged on both sides of the guide wheel piece 3, and a notch 6 away from the main shaft 1 is provided. An annular cover 7 is integrally formed on the outer shell 5 corresponding to the side, and the outer end of the spherical wire guide 4 is located in the notch 6, so that the cover 7 covers the spherical wire guide 4. The setting of the spherical wire guide 4 makes it easy to hang the metal wire, which reduces the difficulty of threading the wire. At the same time, it reduces the labor time for threading the wire, reduces the labor cost during threading, and improves production efficiency. The setting of the cover 7 prevents the metal wire from falling, and the main shaft 1, guide wheel and tight sleeve 2 and guide wheel piece 3 in the device can be disassembled, which is convenient for manufacturing and reduces manufacturing costs.

[0027] The guide wheel tightening sleeve 2 is composed of a first sleeve 201 and a second sleeve 202. A first convex ring 8 is provided in the middle of the first sleeve 201, and a second convex ring 9 is provided at the end of the second sleeve 202 close to the first sleeve 201. The guide wheel piece 3 is located between the first convex ring 8 and the second convex ring 9. The guide wheel tightening sleeve 2 is tightly connected to the main shaft 1 for fixing the guide wheel piece 3.

[0028] An empty slot for accommodating components is provided in the outer shell 5, and a bearing 10 is provided in the empty slot. The center hole of the bearing 10 is adapted to the main shaft 1, and the bearing 10 and the main shaft 1 are rotated together. Through the setting of the bearing 10, the friction and wear of the guide wheel 3 during movement can be reduced, the stability of the guide wheel 3 on its motion trajectory can be maintained, and the service life of the guide wheel can be effectively extended.

[0029] The guide wheel piece 3 and the spherical wire guide 4 are connected to form an integrated structure by injection molding, which is convenient for improving production efficiency. There is no need to weld the spherical wire guides 4 to the guide wheel piece 3 one by one, which greatly reduces production costs.

[0030] A sealing ring 11 is provided between one end of the outer shell close to the guide wheel piece 3 and the guide wheel tight sleeve 2 to improve the sealing effect, prevent cutting fluid from entering the bearing 10 and thus damaging the bearing 10, thereby improving the durability of the bearing and ensuring the normal operation and service life of the device.

[0031] The ends of the housing 5 away from the guide wheel 3 are each provided with a cap 12 .

[0032] During operation, first install the bearings 10 into the empty slots of the outer shells 5 on both sides respectively, insert one end of the main shaft 1 into the center hole of the bearing 10 on one side, and then successively connect the second sleeve 202, the guide wheel 3 and the first sleeve 201 on the main shaft 1, so that one end of the second sleeve 202 is against the bearing 10, and insert the other end of the main shaft 1 into the center hole of the bearing 10 on the other side to complete the installation of the guide wheel. Finally, through the guiding action of the spherical wire guide 4, the metal wire is passed through the guide wheel 3 and the operation can be carried out.

[0033] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" 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 device or element referred to 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. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0034] Obviously, the above embodiments are merely examples for clear explanation and are not limitations on the implementation methods. For ordinary technicians in the field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A guide wheel with an integrally formed spherical guide structure, characterized in that: The invention comprises a main shaft (1), wherein the middle part of the main shaft (1) is sleeved with a guide wheel and a tight sleeve (2), and a guide wheel piece (3) is installed on the guide wheel and the tight sleeve (2), and the guide wheel piece (3) and the guide wheel and the tight sleeve (2) are detachably matched, and a depression for accommodating a metal wire is provided in the middle part of the outer periphery of the guide wheel piece (3), and a spherical wire guide (4) is provided on both sides of the guide wheel piece (3); both ends of the main shaft (1) are sleeved with a shell (5), and the end of the shell (5) close to the spherical wire guide (4) is concentrically provided with a notch (6) symmetrically arranged on both sides of the guide wheel piece (3), and an annular cover (7) is integrally formed on the shell (5) corresponding to the side of the notch (6) away from the main shaft (1), and the outer end of the spherical wire guide (4) is located in the notch (6), so that the cover (7) covers the spherical wire guide (4).

2. The guide wheel with an integrally formed spherical guide structure according to claim 1, characterized in that: The guide wheel and tightening sleeve (2) is composed of a first sleeve (201) and a second sleeve (202), wherein a first convex ring (8) is provided in the middle of the first sleeve (201), and a second convex ring (9) is provided at the end of the second sleeve (202) close to the first sleeve (201), and the guide wheel piece (3) is located between the first convex ring (8) and the second convex ring (9), and the guide wheel and tightening sleeve (2) is tightly connected to the main shaft (1).

3. The guide wheel with an integrally formed spherical guide structure according to claim 1, characterized in that: A slot for accommodating a component is provided in the housing (5), a bearing (10) is provided in the slot, a center hole of the bearing (10) is adapted to the main shaft (1), and the bearing (10) and the main shaft (1) are rotationally matched.

4. The guide wheel with an integrally formed spherical guide structure according to claim 1, characterized in that: The guide wheel (3) and the spherical wire guide (4) are connected to form an integrated structure by injection molding.

5. The guide wheel with an integrally formed spherical guide structure according to claim 1, characterized in that: A sealing ring (11) is provided between one end of the housing (5) close to the guide wheel piece (3) and the guide wheel tight sleeve (2).

6. The guide wheel with an integrally formed spherical guide structure according to claim 1, characterized in that: The ends of the housing (5) away from the guide wheel (3) are each provided with a cap (12).

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