Tension control device of wire feeding machine tool in cutting

Abstract

The utility model discloses a tension control device of a wire feeding machine tool in cutting, and belongs to the technical field of wire cutting machine tools. The tension control device of the wire feeding machine tool during cutting comprises a machine tool body, moving tables are installed on the two sides of the outer portion of the machine tool body, tension adjusting wheels are installed above the moving tables, a spiral limiting frame is arranged on one side of each tension adjusting wheel, and a retainer is installed between each spiral limiting frame and the corresponding tension adjusting wheel. The tension control device solves the problems that an existing tension control device is complex in structure, poor in adaptability and difficult to carry out fine adjustment work in the actual using process, the spiral limiting frame rotates to drive the holding frame to move, and the holding frame drives the tension adjusting wheel to move. The tension adjusting wheel and the connecting frame are limited by the transverse moving frame and the transverse positioning sleeve, the position is kept stable, and the moving curve is fixed, so that the fine adjustment effect is achieved to adapt to different tension control work, and the working quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of wire EDM machine tool technology, specifically a tension control device for wire feeding machines during cutting. Background Technology

[0002] Medium-speed wire EDM machines belong to the category of reciprocating high-speed wire EDM machines. They reduce errors caused by material deformation and molybdenum wire wear through multiple cuts, resulting in machining quality between that of high-speed and low-speed wire EDM machines. Without a tensioning device, it is impossible to cut high-profile workpieces or workpieces with steep bevels.

[0003] Chinese patent CN212552133U discloses a dual-frequency control device for electrode wire tension in a high-speed wire EDM machine. This patent controls the high and low frequency variations of the electrode wire tension in a high-speed reciprocating wire EDM machine through corresponding high and low frequency response devices, achieving rapid and stable adjustment of the electrode wire tension during processing, which can significantly improve cutting stability and processing accuracy.

[0004] The tension control device described in the above patent has a complex structure, poor adaptability, and is difficult to fine-tune in actual use; therefore, it does not meet the existing needs. In response, we have proposed a tension control device for wire cutting machines. Utility Model Content

[0005] The purpose of this invention is to provide a tension control device for wire cutting machines, which solves the problems of complex structure, poor adaptability, and difficulty in fine-tuning of tension control devices mentioned in the background art during actual use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tension control device for a wire cutting machine, comprising a machine body, wherein a positioning wheel is installed in the middle of the machine body, and limit wheels are provided on both sides of the positioning wheel;

[0007] The machine tool body has movable tables installed on both sides of its exterior. A tension adjusting wheel is installed above the movable table. A spiral limiting frame is provided on one side of the tension adjusting wheel. A retaining frame is installed between the spiral limiting frame and the tension adjusting wheel.

[0008] Preferably, the limiting wheel and the positioning wheel are rotatably connected to the machine tool body through a bearing bracket. The positioning wheel has two integrally formed positioning grooves inside and two electrode wires outside. The two electrode wires are rotatably connected to the tension adjusting wheel, the two limiting wheels and the two positioning wheels respectively.

[0009] Preferably, a limiting plate is installed between the machine tool body and the moving table, the limiting plate is fixedly connected to the moving table, and the limiting plate extends into the machine tool body and is slidably connected to the machine tool body.

[0010] Preferably, a hydraulic cylinder is installed between the machine tool body and the moving table, with both ends of the hydraulic cylinder fixedly connected to the machine tool body and the moving table respectively, and casters are installed at the lower end of the moving table.

[0011] Preferably, a connecting frame is installed on one side of the tension adjusting wheel, and the connecting frame is rotatably connected to the tension adjusting wheel through a bearing.

[0012] Preferably, the retainer is rotatably connected to the tension adjusting wheel via a bearing, and the lower part of the retainer is embedded in the surface of the spiral limiting frame and rotatably connected to the spiral limiting frame.

[0013] Preferably, a transverse moving frame is installed on the outside of the connecting frame, the connecting frame slides through one side of the transverse moving frame longitudinally and is slidably connected to the transverse moving frame, a fixed frame is installed on one side of the spiral limiting frame, a transverse positioning sleeve is fixedly installed on the top of the fixed frame, and the transverse moving frame slides through the transverse positioning sleeve and is slidably connected to the transverse positioning sleeve.

[0014] Preferably, a stepper motor is installed inside the fixed frame, and a rotating shaft is fixedly connected inside the spiral limiting frame, with the motor shaft of the stepper motor and the rotating shaft fixedly connected by a coupling.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The tension control device of this utility model uses a spiral limiting frame for fine adjustment. The spiral limiting frame rotates, which drives the retainer to move. The retainer drives the tension adjusting wheel to move. The tension adjusting wheel and the connecting frame are limited by the transverse moving frame and the transverse positioning sleeve, keeping the position stable and the movement curve fixed, thereby achieving the effect of fine adjustment to adapt to different tension control operations and thus improve the work quality.

[0017] 2. When in use, the tension control device of this utility model moves the moving platform by extending and retracting the hydraulic cylinder. The moving platform moves the tension adjusting wheel and the spiral limit frame. After moving, the tension of the electrode wire is adjusted so that the electrode wire is limited to achieve the best working state. It can be used in conjunction with the tension adjusting wheel for diversified adjustments and has strong adaptability. Attached Figure Description

[0018] Figure 1 This is an axonometric view of the front view of this utility model;

[0019] Figure 2 This is an axonometric view of the side of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged view of a portion of area A in the middle;

[0021] Figure 4 This is an isometric view of the tension adjusting wheel of this utility model after adjustment.

[0022] In the diagram: 1. Machine tool body; 2. Positioning wheel; 201. Positioning groove; 3. Electrode wire; 4. Limiting wheel; 5. Tension adjusting wheel; 501. Connecting frame; 502. Retaining frame; 6. Spiral limiting frame; 601. Fixed frame; 602. Lateral positioning sleeve; 603. Rotary shaft; 604. Lateral moving frame; 7. Moving table; 701. Universal wheel; 702. Limiting plate; 703. Hydraulic cylinder. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To address the problems of existing tension control devices being structurally complex, poorly adaptable, and difficult to fine-tune in practical use, please refer to... Figure 1 - Figure 4 This embodiment provides the following technical solution:

[0025] To achieve the above objectives, the present invention provides the following technical solution: a tension control device for a wire cutting machine, comprising a machine body 1, a positioning wheel 2 installed in the middle of the machine body 1, and limit wheels 4 provided on both sides of the positioning wheel 2;

[0026] The machine tool body 1 has a movable table 7 installed on both sides of its exterior. A tension adjusting wheel 5 is installed above the movable table 7. A spiral limit frame 6 is provided on one side of the tension adjusting wheel 5. A retainer 502 is installed between the spiral limit frame 6 and the tension adjusting wheel 5. The tension control device uses the spiral limit frame 6 for fine adjustment. When the spiral limit frame 6 rotates, it drives the retainer 502 to move, and the retainer 502 drives the tension adjusting wheel 5 to move.

[0027] A connecting frame 501 is installed on one side of the tension adjusting wheel 5. The connecting frame 501 is rotatably connected to the tension adjusting wheel 5 through a bearing. The retainer 502 is rotatably connected to the tension adjusting wheel 5 through a bearing. The lower part of the retainer 502 is embedded in the surface of the spiral limiting frame 6 and is rotatably connected to the spiral limiting frame 6.

[0028] A transverse moving frame 604 is installed on the outside of the connecting frame 501. The connecting frame 501 is longitudinally connected to the transverse moving frame 604 on one side. A fixed frame 601 is installed on one side of the spiral limiting frame 6. A transverse positioning sleeve 602 is fixedly installed on the top of the fixed frame 601. The transverse moving frame 604 is transversely connected to the transverse positioning sleeve 602. The tension adjusting wheel 5 and the connecting frame 501 are limited by the transverse moving frame 604 and the transverse positioning sleeve 602, maintaining a stable position and a fixed movement curve, thereby achieving a fine-tuning effect to adapt to different tension control operations and improve work quality.

[0029] A stepper motor is installed inside the fixed frame 601, and a rotating shaft 603 is fixedly connected inside the spiral limit frame 6. The motor shaft of the stepper motor and the rotating shaft 603 are fixedly connected by a coupling. By adjusting the stepper motor, the spiral limit frame 6 is adjusted, thereby adjusting the tension adjusting wheel 5 and adjusting the tension of the electrode wire 3.

[0030] Specifically, the tension control device uses a spiral limit frame 6 for fine adjustment. The spiral limit frame 6 rotates, driving the retainer 502 to move. The retainer 502 drives the tension adjusting wheel 5 to move. The tension adjusting wheel 5 and the connecting frame 501 are limited by the transverse moving frame 604 and the transverse positioning sleeve 602, maintaining a stable position and a fixed movement curve, thereby achieving the effect of fine adjustment to adapt to different tension control operations and improve work quality.

[0031] To address the issue that existing tension control devices offer only a single tension adjustment method and cannot adapt to diverse operational needs during practical use, please refer to... Figure 1 - Figure 4 This embodiment provides the following technical solution:

[0032] Both the limit wheel 4 and the positioning wheel 2 are rotatably connected to the machine tool body 1 through the bearing bracket. The positioning wheel 2 has two integrally formed positioning grooves 201 inside, and two electrode wires 3 are provided on the outside of the positioning wheel 2. The two electrode wires 3 are rotatably connected to the tension adjusting wheel 5, the two limit wheels 4 and the two positioning wheels 2 respectively. After the tension adjusting wheel 5 moves, the tension of the electrode wire 3 is adjusted so that the electrode wire 3 is limited to achieve the best working state. It can be used in conjunction with the tension adjusting wheel 5 for diversified adjustment and has strong adaptability.

[0033] A limiting plate 702 is installed between the machine tool body 1 and the moving table 7. The limiting plate 702 is fixedly connected to the moving table 7, and the limiting plate 702 extends into the machine tool body 1 and is slidably connected to the machine tool body 1. The limiting plate 702 moves inside the machine tool body 1 to keep the position of the moving table 7 stable.

[0034] A hydraulic cylinder 703 is installed between the machine tool body 1 and the moving table 7. The two ends of the hydraulic cylinder 703 are fixedly connected to the machine tool body 1 and the moving table 7 respectively. A caster wheel 701 is installed at the lower end of the moving table 7. When the tension control device is in use, the moving table 7 is moved by extending and retracting the hydraulic cylinder 703. The moving table 7 drives the tension adjusting wheel 5 and the spiral limit frame 6 to move.

[0035] Specifically, when in use, the tension control device extends and retracts through the hydraulic cylinder 703, which drives the moving platform 7 to move. The moving platform 7 drives the tension adjusting wheel 5 and the spiral limit frame 6 to move. After moving, the tension of the electrode wire 3 is adjusted so that the electrode wire 3 is limited to achieve the best working state. It can be used in conjunction with the tension adjusting wheel 5 for diversified adjustments and has strong adaptability.

[0036] Working Principle: During operation, the tension control device uses the extension and retraction of the hydraulic cylinder 703 to move the movable platform 7. The movable platform 7 then moves the tension adjusting wheel 5 and the spiral limiting frame 6, adjusting the tension of the electrode wire 3 to achieve optimal working condition. The tension adjusting wheel 5 allows for diverse adjustments and strong adaptability. The spiral limiting frame 6 provides fine-tuning; by adjusting the stepper motor, the spiral limiting frame 6 rotates, moving the retainer 502. The retainer 502 then moves the tension adjusting wheel 5. The tension adjusting wheel 5 and the connecting frame 501 are limited by the transverse moving frame 604 and the transverse positioning sleeve 602, adjusting the tension of the electrode wire 3, maintaining a stable position, and fixing the movement curve. This achieves fine-tuning to adapt to different tension control tasks, thereby improving work quality.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A tension control device for a wire-feeding cutting machine, comprising a machine body (1), characterized in that, The machine tool body (1) is equipped with a positioning wheel (2) in the middle, and limit wheels (4) are provided on both sides of the positioning wheel (2). The machine tool body (1) has a movable table (7) installed on both sides of its exterior. A tension adjusting wheel (5) is installed above the movable table (7). A spiral limiting frame (6) is provided on one side of the tension adjusting wheel (5). A retainer (502) is installed between the spiral limiting frame (6) and the tension adjusting wheel (5).

2. The tension control device for a wire-feeding cutting machine according to claim 1, characterized in that: The limiting wheel (4) and the positioning wheel (2) are rotatably connected to the machine tool body (1) through the bearing bracket. The positioning wheel (2) has two integrally formed positioning grooves (201) inside. The positioning wheel (2) has two electrode wires (3) outside. The two electrode wires (3) are rotatably connected to the tension adjusting wheel (5), the two limiting wheels (4) and the two positioning wheels (2) respectively.

3. The tension control device for a wire-feeding cutting machine according to claim 1, characterized in that: A limiting plate (702) is installed between the machine tool body (1) and the moving table (7). The limiting plate (702) is fixedly connected to the moving table (7), and the limiting plate (702) extends into the machine tool body (1) and is slidably connected to the machine tool body (1).

4. The tension control device for a wire-feeding cutting machine according to claim 1, characterized in that: A hydraulic cylinder (703) is installed between the machine tool body (1) and the moving table (7). The two ends of the hydraulic cylinder (703) are fixedly connected to the machine tool body (1) and the moving table (7) respectively. A caster wheel (701) is installed at the lower end of the moving table (7).

5. The tension control device for a wire-feeding cutting machine according to claim 1, characterized in that: A connecting frame (501) is installed on one side of the tension adjusting wheel (5), and the connecting frame (501) is rotatably connected to the tension adjusting wheel (5) through a bearing.

6. The tension control device for a wire-feeding cutting machine according to claim 5, characterized in that: The retainer (502) is rotatably connected to the tension adjusting wheel (5) via a bearing, and the surface of the spiral limiting frame (6) is embedded below the retainer (502) and rotatably connected to the spiral limiting frame (6).

7. The tension control device for a wire-feeding cutting machine according to claim 6, characterized in that: A transverse moving frame (604) is installed on the outside of the connecting frame (501). The connecting frame (501) is longitudinally connected to one side of the transverse moving frame (604). A fixed frame (601) is installed on one side of the spiral limiting frame (6). A transverse positioning sleeve (602) is fixedly installed on the top of the fixed frame (601). The transverse moving frame (604) is transversely connected to the transverse positioning sleeve (602).

8. The tension control device for a wire-feeding cutting machine according to claim 7, characterized in that: A stepper motor is installed inside the fixed frame (601), and a rotating shaft (603) is fixedly connected inside the spiral limit frame (6), and the motor shaft of the stepper motor and the rotating shaft (603) are fixedly connected by a coupling.

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