Wire tightening mechanism of linear cutting machine tool

Abstract

The utility model discloses a wire tightening mechanism of a linear cutting machine tool, which comprises a mounting plate, the left end and the right end of the front surface of the mounting plate are rotatably connected with a rotating shaft and a positioning shaft respectively, the surface of the positioning shaft is provided with a limiting mechanism, the upper surface of the mounting plate is provided with a mounting cavity, the rotating shaft penetrates into the mounting cavity, and a servo motor is arranged in the mounting cavity. The servo motor is fixedly connected with the end, penetrating into the mounting cavity, of the rotating shaft, cavities and traction openings are formed in the upper ends and the lower ends of the side surfaces of the rotating shaft and the positioning shaft correspondingly, the traction openings are communicated with the cavities, the two ends of the cutting wire penetrate through the traction openings and the cavities correspondingly to be wound around the surfaces of the rotating shaft and the positioning shaft, and pressing plates are arranged on the inner walls of the cavities. And the pressing plate is in close contact with the cutting wire in the cavity, supporting plates are fixedly connected to the left end and the right end of the front surface of the mounting plate, and the supporting plates are in close contact with the cutting wire. Through the structure, the convenience of dismounting and mounting the cutting wire is improved, and the stability of the cutting wire is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting machine tools, in particular to a wire tightening mechanism of a wire cutting machine tool. Background Art

[0002] When the wire cutting machine is in use, the cutting wire may become loose, which affects the cutting effect. The general wire tightening mechanism wastes time when adjusting the tightness of the cutting wire, and it is difficult to disassemble and assemble the cutting wire, which reduces the practicality of the wire tightening mechanism. The "Wire Cutting Machine Tool Tightening Mechanism for Mold Processing" disclosed on the China Patent Network has an application number of "202321914098.2". The wire tightening mechanism arranges a transmission part and a pressure sensor in the disc around which the cutting wire is wound, so as to improve the timeliness of changing the tightness of the cutting wire, thereby improving the practicality of the wire tightening mechanism. However, the wire tightening mechanism still wastes time when disassembling and assembling the cutting wire, and the disc has a poor effect of restricting the cutting wire. Utility Model Content

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, to provide a wire tightening mechanism for a wire cutting machine, to improve the convenience of disassembling and assembling the cutting wire, and to improve the limiting effect of the wire tightening mechanism on the cutting wire, thereby improving the stability of the cutting wire.

[0004] The utility model also provides a wire tightening mechanism with the above-mentioned wire cutting machine tool, comprising: a mounting plate, the left and right ends of the front surface of the mounting plate are respectively rotatably connected to a rotating shaft and a positioning shaft, the surface of the positioning shaft is provided with a limiting mechanism, the upper surface of the mounting plate is provided with a mounting cavity, the rotating shaft passes through the interior of the mounting cavity, a servo motor is provided inside the mounting cavity, the servo motor is fixedly connected to one end of the rotating shaft passing through the interior of the mounting cavity, the upper and lower ends of the side surfaces of the rotating shaft and the positioning shaft are both provided with a cavity and a traction opening, the traction opening and the cavity are connected to each other, the two ends of the cutting wire pass through the traction opening and the cavity respectively and are wound around the surface of the rotating shaft and the positioning shaft, a pressure plate is provided on the inner wall of the cavity, the pressure plate is in close contact with the cutting wire inside the cavity, the left and right ends of the front surface of the mounting plate are both fixedly connected to a support plate, the two support plates are located between the rotating shaft and the positioning shaft, and when the wire tightening mechanism is used, the support plate is in close contact with the cutting wire.

[0005] According to the wire tightening mechanism of the wire cutting machine tool of the present invention, a cover plate is provided on the upper surface of the mounting plate, and the cover plate completely covers the mounting cavity, thereby improving the sealing effect of the mounting cavity.

[0006] According to the wire-cutting machine tool's wire tightening mechanism, the length, width, and depth of the mounting cavity are all greater than the length, width, and height of the servo motor, and the servo motor does not contact the inner wall of the mounting cavity or the lower surface of the cover plate, thereby improving ventilation.

[0007] According to the wire tightening mechanism of the wire cutting machine tool of the present invention, the width of the cavity is greater than the width of the traction opening, and the lower inner wall of the cavity not in the traction opening is in close contact with the lower surface of the pressing plate, thereby improving the stability of the pressing plate.

[0008] According to the wire-cutting machine tool's tightening mechanism, bolt and nut reinforcements are provided at the lower ends of the pressure plate and the side surface of the rotating shaft. The lower ends of the bolts in the bolt and nut reinforcements penetrate the pressure plate and the lower inner wall of the cavity, and the nuts are embedded in the side surface of the rotating shaft, thereby improving the stability of the pressure plate during operation.

[0009] According to the wire cutting machine tool tightening mechanism of the present invention, a conical protective cap is fixedly connected to the side of the nut in the bolt and nut reinforcement member away from the rotating shaft, and the conical protective cap is engaged with the side surface of the rotating shaft to prevent the nut from wearing the cutting wire.

[0010] According to the wire tightening mechanism of the wire-cutting machine tool of the present invention, the pressure plate is composed of a filling plate and a circular arc plate. The circular arc plate is fixedly connected to the upper surface of the filling plate, the circular arc plate is in close contact with the side surface of the rotating shaft, and the filling plate is located inside the cavity, thereby improving the effect of the pressure plate.

[0011] According to the wire-cutting machine tool's wire tensioning mechanism, the support plate comprises a flat plate and a plurality of round rods. The round rods are located on the upper surface of the flat plate and are rotatably connected to the flat plate. When the wire tensioning mechanism is in use, the side surfaces of the round rods are in close contact with the cutting wire, thereby improving the convenience of maintaining the support plate.

[0012] Beneficial effects:

[0013] 1. Compared with the existing technology, the wire tightening mechanism of the cutting machine tool fixes the cutting wire by threading and pressing through the rotating shaft, positioning shaft, limiting mechanism, cavity, traction opening, filling plate, arc plate and support member, thereby improving the convenience of disassembly and assembly of the cutting wire. After threading, the cutting wire is wound around the rotating shaft and positioning shaft and is pressed by the filling plate and arc plate, effectively improving the limiting effect of the wire tightening mechanism on the cutting wire and improving the stability of the cutting wire.

[0014] 2. Compared with the existing technology, the wire tightening mechanism of the cutting machine tool improves the convenience of loosening and tightening the cutting wire through the servo motor, screw and nut reinforcement, and conical protective cap, improves the stability of the wire tightening mechanism's own components when they are in action, reduces the hidden danger of the wire tightening mechanism's own components wearing the cutting wire, and improves the comfort of using the wire tightening mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1This is a top view of the right side of the wire tightening mechanism of the wire cutting machine tool of the present invention;

[0017] Figure 2 This is a left-side top view of the wire tightening mechanism of the wire cutting machine tool of the present invention;

[0018] Figure 3 This is a bottom-up structural diagram of the wire tightening mechanism of the wire-cutting machine tool of the present invention;

[0019] Figure 4 The utility model is a wire cutting machine tool wire tightening mechanism Figure 2 Enlarged structural diagram at point A in the middle.

[0020] Legend:

[0021] 1. Mounting plate; 2. Rotating shaft; 3. Cavity; 4. Pressing plate; 5. Support plate; 6. Positioning shaft; 7. Bolt and nut reinforcement; 8. Filling plate; 9. Arc plate; 10. Mounting cavity; 11. Servo motor; 12. Flat plate; 13. Round rod; 14. Conical protective cap; 15. Traction opening; 16. Cover plate; 17. Limiting mechanism. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] Reference Figure 1-4 The wire tightening mechanism of the wire cutting machine tool of the utility model embodiment includes: a mounting plate 1, the left and right ends of the front surface of the mounting plate 1 are rotatably connected with a rotating shaft 2 and a positioning shaft 6 respectively, the rotating shaft 2 and the positioning shaft 6 are used to wind and fix the two ends of the cutting wire, and a limiting mechanism 17 is provided on the surface of the positioning shaft 6, which is used to increase the stability of the positioning shaft 6, wherein the limiting mechanism 17 is composed of a C-shaped frame and a slot, the slot is located on the front surface of the positioning shaft 6, the front end of the C-shaped frame is located inside the slot, and the rear end of the C-shaped frame is clamped with the mounting plate 1, so as to utilize the C-shaped frame to limit the range of motion of the positioning shaft 6.

[0024] A mounting cavity 10 is provided on the upper surface of the mounting plate 1, and the rotating shaft 2 passes through the interior of the mounting cavity 10. A servo motor 11 is provided inside the mounting cavity 10. The servo motor 11 is fixedly connected to one end of the rotating shaft 2 passing through the interior of the mounting cavity 10. The servo motor 11 is used to increase the rotational power of the rotating shaft 2. A cover plate 16 is provided on the upper surface of the mounting plate 1, and the cover plate 16 completely covers the mounting cavity 10. The cover plate 16 is used to close the mounting cavity 10. The length, width and depth of the mounting cavity 10 are all greater than the length, width and height of the servo motor 11. The servo motor 11 does not contact the inner wall of the mounting cavity 10 or the lower surface of the cover plate 16. The relationship between the inner wall of the mounting cavity 10 and the servo motor 11 increases the space for flow and heat exchange provided for gas near the servo motor 11 when heat dissipation is required.

[0025] The upper and lower ends of the side surfaces of the rotating shaft 2 and the positioning shaft 6 are provided with a cavity 3 and a traction opening 15. The traction opening 15 and the cavity 3 are interconnected, and the width of the cavity 3 is greater than the width of the traction opening 15. The lower inner wall of the cavity 3 is not in close contact with the lower surface of the pressure plate 4 at the part where the traction opening 15 is not formed. The two ends of the cutting wire pass through the traction opening 15 and the cavity 3 respectively and are wound around the surface of the rotating shaft 2 and the positioning shaft 6. The cavity 3 and the traction opening 15 are used to provide stable winding conditions for the cutting wire. A bolt and nut reinforcement 7 is provided at the lower end of the side surface of the pressure plate 4 and the rotating shaft 2. The lower end of the bolt in the bolt and nut reinforcement 7 passes through the pressure plate 4 and the lower inner wall of the cavity 3, and the nut is embedded in the side surface of the rotating shaft 2. The bolt and nut reinforcement 7 improves the stability of the pressure plate 4 when it acts. The side of the nut in the bolt and nut reinforcement 7 away from the rotating shaft 2 is fixedly connected with a conical protective cap 14, which is clamped with the side surface of the rotating shaft 2. The conical protective cap 14 is used to isolate the nut and reduce the wear of the nut on the cutting wire.

[0026] The inner wall of the cavity 3 is provided with a pressure plate 4, which is in close contact with the cutting wire inside the cavity 3. The pressure plate 4 is composed of a filling plate 8 and an arc plate 9. The arc plate 9 is fixedly connected to the upper surface of the filling plate 8, and the arc plate 9 is in close contact with the side surface of the rotating shaft 2. The filling plate 8 is located inside the cavity 3. The pressure plate 4 is used to limit the range of movement of the cutting wire in the cavity 3 and the traction opening 15. The left and right ends of the front surface of the mounting plate 1 are fixedly connected with support plates 5. The two support plates 5 are located between the rotating shaft 2 and the positioning shaft 6. When the wire tightening mechanism is used, the support plate 5 is in close contact with the cutting wire. The support plate 5 is composed of a flat plate 12 and multiple round rods 13. The round rods 13 are located on the upper surface of the flat plate 12 and are rotatably connected to the flat plate 12. When the wire tightening mechanism is used, the side surface of the round rods 13 is in close contact with the cutting wire. The support plate 5 is used to limit the height of the cutting wire and provide support force for the cutting wire.

[0027] Working principle: pass the right end of the cutting wire from top to bottom through the cavity 3 and the traction opening 15 in the positioning shaft 6, and wrap around the left wall of the cavity 3 and the left half of the positioning shaft 6 through the cavity 3 and the traction opening 15, then push the pressure plate 4 into the interior of the cavity 3, and make the arc plate 9 of the pressure plate 4 contact the reserved part of the right end of the cutting wire, and fix the pressure plate 4 with the bolt and nut reinforcement 7, then wrap the excess length of cutting wire around the entire side surface positioning shaft 6, and then fix the positioning shaft 6 with the limiting mechanism 17, and then fix the left end of the cutting wire on the surface of the rotating shaft 2 in the same way, and pay attention to wrapping around the right half of the rotating shaft 2 through the cavity 3 and the traction opening 15. At this time, use the servo motor 11 to rotate the rotating shaft 2 to tighten the cutting wire. When the cutting wire is tightened, it contacts the side surface of the round rod 13 in the support plate 5. The servo motor 11 requires a heat dissipation chamber separation cover 16 to increase the contact area between the outside air and the servo motor 11.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The wire tightening mechanism of the wire cutting machine is characterized by: include: A mounting plate (1), wherein the left and right ends of the front surface of the mounting plate (1) are rotatably connected to a rotating shaft (2) and a positioning shaft (6), respectively, a limiting mechanism (17) is provided on the surface of the positioning shaft (6), an upper surface of the mounting plate (1) is provided with a mounting cavity (10), the rotating shaft (2) passes through the interior of the mounting cavity (10), a servo motor (11) is provided inside the mounting cavity (10), and the servo motor (11) is fixedly connected to one end of the rotating shaft (2) passing through the interior of the mounting cavity (10); The upper and lower ends of the side surfaces of the rotating shaft (2) and the positioning shaft (6) are both provided with cavities (3) and traction openings (15), the traction openings (15) and the cavity (3) are mutually connected, and the two ends of the cutting wire pass through the traction openings (15) and the cavity (3) respectively and are wound around the surfaces of the rotating shaft (2) and the positioning shaft (6), the inner wall of the cavity (3) is provided with a pressure plate (4), and the pressure plate (4) is in close contact with the cutting wire inside the cavity (3), the left and right ends of the front surface of the mounting plate (1) are both fixedly connected with support plates (5), the two support plates (5) are located between the rotating shaft (2) and the positioning shaft (6), and when the wire tightening mechanism is used, the support plates (5) are in close contact with the cutting wire.

2. The wire tightening mechanism of the wire cutting machine tool according to claim 1, characterized in that: A cover plate (16) is provided on the upper surface of the mounting plate (1), and the cover plate (16) completely covers the mounting cavity (10).

3. The wire tightening mechanism of the wire cutting machine tool according to claim 2, characterized in that: The length, width and depth of the installation cavity (10) are all greater than the length, width and height of the servo motor (11), and the servo motor (11) does not contact the inner wall of the installation cavity (10) or the lower surface of the cover plate (16).

4. The wire tightening mechanism of the wire cutting machine tool according to claim 1, characterized in that: The width of the cavity (3) is greater than the width of the traction opening (15), and the lower inner wall of the cavity (3) not being traction-opening (15) is in close contact with the lower surface of the pressing plate (4).

5. The wire tightening mechanism of the wire cutting machine tool according to claim 1, characterized in that: A bolt and nut reinforcement piece (7) is provided at the lower end of the side surface of the pressure plate (4) and the rotating shaft (2), wherein the lower end of the bolt in the bolt and nut reinforcement piece (7) passes through the pressure plate (4) and the lower inner wall of the cavity (3), and the nut is embedded in the side surface of the rotating shaft (2).

6. The wire tightening mechanism of the wire cutting machine tool according to claim 5, characterized in that: A conical protective cap (14) is fixedly connected to a side of the nut in the bolt and nut reinforcement (7) that is away from the rotating shaft (2), and the conical protective cap (14) is clamped with the side surface of the rotating shaft (2).

7. The wire tightening mechanism of the wire cutting machine tool according to claim 1, characterized in that: The pressure plate (4) is composed of a filling plate (8) and a circular arc plate (9), wherein the circular arc plate (9) is fixedly connected to the upper surface of the filling plate (8), the circular arc plate (9) is in close contact with the side surface of the rotating shaft (2), and the filling plate (8) is located inside the cavity (3).

8. The wire tightening mechanism of the wire cutting machine tool according to claim 1, characterized in that: The support plate (5) is composed of a flat plate (12) and a plurality of round rods (13). The round rods (13) are located on the upper surface of the flat plate (12) and are rotatably connected to the flat plate (12). When the wire tightening mechanism is used, the side surfaces of the round rods (13) are in close contact with the cutting wire.

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