Wire winding mechanism of wire cut electrical discharge machining tool

Abstract

The utility model discloses a wire winding mechanism of an electric spark wire cutting machine tool, which comprises a base, a guide block, a wire winding roller and a movable seat, positioning holes are uniformly arranged on one side of the top end of the base at equal intervals, a fixed seat is fixedly connected to the middle position of one side of the top end of the base, and a driving motor is arranged in the middle position of one side of the fixed seat. A first connecting block is installed at the output shaft end of the driving motor, a hollow column is fixedly connected to the top end of one side of the fixing base, and a servo motor is installed on one side of the hollow column. One end of a molybdenum wire can be placed through the through groove formed in one side of the wire winding roller, at the moment, the bolt at the top end of the wire winding roller is rotated, the bolt can push the pressing plate to limit one end of the molybdenum wire, meanwhile, the guide block is arranged on one side of the top end of the wire winding roller, and when the molybdenum wire penetrates through the guide block, the molybdenum wire can be fixed. And the guide block reciprocates at the bottom end of the hollow column, so that the molybdenum wire can be uniformly wound.

Description

Technical Field

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

[0002] When machining workpieces, especially for cutting hard metals, electric spark cutting is often used. Electric spark wire cutting uses the instantaneous high temperature of discharge between the electrode wire and the workpiece to melt, oxidize and corrode the local metal of the workpiece. The corroded material is condensed and then drained away by the electrolyte to achieve cutting. It is usually carried out on an electric spark cutting machine. Molybdenum wire mainly refers to a consumable made of precious metals such as molybdenum that moves continuously with a high-voltage electric field to cut the workpiece during wire cutting. After electric spark cutting, the molybdenum wire generally needs to be reeled and replaced through a wire winding mechanism.

[0003] A molybdenum wire retracting device for an electric spark wire cutting machine tool disclosed in the Chinese utility model patent application disclosure specification CN215091174U, in which a cross bar rotates to drive a first gear to rotate, and when the first gear rotates, the rack is driven to move up and down, thereby moving the tape, which is beneficial to adjusting the thickness of the wound molybdenum wire. The adjustment can be made according to needs and has a wide range of applications. At this time, the fixing plate is removed and the packaged connecting sleeve is slid out through the outside of the rotating roller. However, the wire winding mechanism has low flexibility and is not convenient for quickly completing the position fixation of the molybdenum wire and the wire winding mechanism. At the same time, during the wire winding process of the wire winding mechanism, uneven winding may occur, affecting the safety and stability of subsequent molybdenum wire use. Utility Model Content

[0004] The utility model aims to provide a wire winding mechanism for an electric spark wire cutting machine tool to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wire winding mechanism of an electric spark wire cutting machine tool, comprising a base, a guide block, a wire winding roller and a movable seat, one side of the top of the base is evenly and evenly provided with positioning holes, a fixed seat is fixedly connected to the middle position of the top of one side of the base, a driving motor is installed at the middle position of one side of the fixed seat, a first connecting block is installed at the output shaft end of the driving motor, a hollow column is fixedly connected to the top of one side of the fixed seat, a servo motor is installed on one side of the hollow column, a threaded rod is installed at the output shaft end of the servo motor, a threaded block is threadedly connected to one side of the outer side of the threaded rod, a first fixed block is fixedly connected to the bottom end of the threaded block, a guide block is fixedly connected to the bottom end of the first fixed block, a wire winding roller is arranged on one side of the first connecting block, square grooves are arranged at the middle positions of both sides of the wire winding roller, the first connecting block is movably connected inside the square groove, a through groove is arranged inside one side of the wire winding roller, and a bolt is threadedly connected to one side of the top of the wire winding roller.

[0006] Preferably, the bottom end of the bolt is rotatably connected to a pressure plate, and one side of the pressure plate is fixedly connected to a limiting block.

[0007] Preferably, a sliding rod is fixedly connected to the middle position of one side of the inner part of the base, a sliding block is slidably connected to the outer part of the sliding rod, and a second fixed block is fixedly connected to the top end of the sliding block.

[0008] Preferably, the top end of the second fixed block is fixedly connected to a movable seat, the middle position of one side of the movable seat is rotatably connected to a second connecting block, and the outside of the second connecting block is movably connected to a square groove.

[0009] Preferably, a hollow block is fixedly connected to the bottom end of one side of the movable seat, a pull rod is slidably connected inside the top end of the hollow block, and the bottom end of the pull rod is fixedly connected to the movable block.

[0010] Preferably, a spring is fixedly connected to the top end of the movable block, and a positioning rod is fixedly connected to the middle position of the bottom end of the movable block.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The wire winding mechanism of this type of wire-cut EDM machine tool can place one end of the molybdenum wire by providing a through groove on one side of the wire winding roller. At this time, by rotating the bolt on the top of the wire winding roller, the bolt can push the pressure plate to complete the position limiting work on one end of the molybdenum wire. At the same time, a guide block is provided on one side of the top of the wire winding roller. When the molybdenum wire passes through the inside of the guide block, the guide block reciprocates at the bottom of the hollow column, so that the molybdenum wire can be wound evenly, thereby improving the convenience of the overall use of the wire winding mechanism and the stability of the wire winding;

[0013] 2. The wire winding mechanism of this type of electric spark wire cutting machine tool is capable of fixing the position of the wire winding roller by arranging square grooves in the middle positions on both sides of the wire winding roller, and inserting the first connecting block and the second connecting block on the fixed seat and the movable seat into the square grooves on the wire winding roller respectively. When the wire winding roller needs to be replaced after winding the wire, the position of the movable seat can be moved by pulling out the positioning rod at the bottom end of the hollow block from the positioning hole on the base. At this time, the movable seat drives the second connecting block to be pulled out from the square groove on one side of the wire winding roller, so that the wire winding roller can be quickly replaced. The operation is simple and convenient, and the work efficiency of subsequent wire winding is guaranteed at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a front view structural schematic diagram of the utility model;

[0016] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 It is a schematic diagram of the overall structure of the hollow block of the utility model.

[0018] In the figure: 1. base; 101. positioning hole; 2. fixed seat; 201. drive motor; 202. first connecting block; 3. hollow column; 301. servo motor; 302. threaded rod; 303. threaded block; 304. first fixed block; 4. guide block; 5. wire winding roller; 501. square groove; 502. through groove; 6. bolt; 601. pressure plate; 602. limit block; 7. sliding rod; 701. slider; 702. second fixed block; 8. movable seat; 801. second connecting block; 9. hollow block; 901. pull rod; 902. movable block; 903. spring; 904. positioning rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides an embodiment: a wire winding mechanism of an electric spark wire cutting machine tool, comprising a base 1, a guide block 4, a wire winding roller 5 and a movable seat 8, one side of the top of the base 1 is evenly and evenly provided with positioning holes 101, and the positioning rod 904 at the bottom end of the hollow block 9 is inserted into the positioning hole 101 on the base 1, so that the position of the movable seat 8 at the top of the base 1 can be fixed;

[0021] A fixing seat 2 is fixedly connected to the middle position of one side of the top of the base 1, a driving motor 201 is installed in the middle position of one side of the fixing seat 2, and a first connecting block 202 is installed at the output shaft end of the driving motor 201. When the driving motor 201 is started, the first connecting block 202 can be driven to rotate, and at this time, the first connecting block 202 drives the wire winding roller 5 to rotate, so that the wire winding roller 5 can drive the molybdenum wire to be wound;

[0022] A hollow column 3 is fixedly connected to the top of one side of the fixed seat 2, a servo motor 301 is installed on one side of the hollow column 3, a threaded rod 302 is installed on the output shaft end of the servo motor 301, a threaded block 303 is threadedly connected to one side of the outer side of the threaded rod 302, the bottom end of the threaded block 303 is fixedly connected to a first fixed block 304, the bottom end of the first fixed block 304 is fixedly connected to a guide block 4, the servo motor 301 can drive the threaded rod 302 to rotate when it is started, at this time the threaded block 303 on the threaded rod 302 can move freely on the threaded rod 302, and the threaded block 303 can drive the guide block 4 to reciprocate on the top of the wire winding roller 5 through the first fixed block 304, and stably guide the molybdenum wire, and at the same time, a cleaning brush is provided on the contact surface between the guide block 4 and the molybdenum wire to clean the dust on the outer surface of the molybdenum wire;

[0023] A wire winding roller 5 is provided on one side of the first connection block 202, and a square groove 501 is provided in the middle of both sides of the wire winding roller 5. The first connection block 202 is movably connected inside the square groove 501. The first connection block 202, the square groove 501, and the second connection block 801 are all square, so as to increase the stability of the connection to the wire winding roller 5.

[0024] A through groove 502 is provided inside one side of the wire winding roller 5, a bolt 6 is threadedly connected to one side of the top of the wire winding roller 5, a pressing plate 601 is rotatably connected to the bottom end of the bolt 6, and a limiting block 602 is fixedly connected to one side of the pressing plate 601. The molybdenum wire can pass through the interior of the through groove 502, and by rotating the bolt 6, the bolt 6 pushes the pressing plate 601 to move downward, so that the pressing plate 601 can complete the work of pressing and limiting one end of the molybdenum wire;

[0025] A slide bar 7 is fixedly connected to the middle position of one side of the inner part of the base 1, a slider 701 is slidably connected to the outer part of the slide bar 7, a second fixed block 702 is fixedly connected to the top of the slider 701, a movable seat 8 is fixedly connected to the top of the second fixed block 702, and the slider 701 slides on the slide bar 7, and the movable seat 8 can be driven to move by the second fixed block 702;

[0026] The middle position of one side of the movable seat 8 is rotatably connected with a second connecting block 801, and the outer part of the second connecting block 801 is movably connected with a square groove 501. The second connecting block 801 is rotatably connected with the movable seat 8, so the winding roller 5 drives the second connecting block 801 to rotate without affecting the rotation of the movable seat 8.

[0027] A hollow block 9 is fixedly connected to the bottom end of one side of the movable seat 8, and a pull rod 901 is slidably connected to the inside of the top of the hollow block 9. A movable block 902 is fixedly connected to the bottom end of the pull rod 901, and a spring 903 is fixedly connected to the top of the movable block 902. A positioning rod 904 is fixedly connected to the middle position of the bottom end of the movable block 902. When the pull rod 901 at the top of the hollow block 9 is pulled, the spring 903 above can be squeezed through the movable block 902. At this time, the movable block 902 can drive the positioning rod 904 to move upward. When the pull rod 901 is released, the positioning rod 904 can be pushed downward by the pull rod 901 due to the reaction force of the squeezed spring 903.

[0028] When the embodiment of the present application is in use: one end of the molybdenum wire is passed through the inside of the guide block 4, and one end of the molybdenum wire is inserted into the through groove 502 on the wire winding roller 5. At this time, the bolt 6 at the top of the wire winding roller 5 is rotated, and the bolt 6 pushes the pressure plate 601 to move downward. At the same time, the pressure plate 601 can complete the clamping work of one end of the molybdenum wire. At this time, the driving motor 201 on one side of the fixed seat 2 is started, and the wire winding roller 5 can be driven to rotate through the first connecting block 202, and the wire winding roller 5 pulls the molybdenum wire for winding. At the same time, the servo motor 301 in the hollow column 3 is started, and the servo motor 301 drives the threaded rod 302 to rotate, so that the threaded block 303 on the threaded rod 302 can reciprocate on the threaded rod 302, and the threaded block 303 can drive the guide block 4 to move through the first fixed block 304, so as to evenly perform the molybdenum wire winding work.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wire winding mechanism for an electric spark wire cutting machine tool, characterized in that , comprising a base (1), a guide block (4), a wire winding roller (5) and a movable seat (8), wherein one side of the top of the base (1) is evenly and evenly provided with positioning holes (101), a fixed seat (2) is fixedly connected to the middle position of one side of the top of the base (1), a driving motor (201) is installed in the middle position of one side of the fixed seat (2), a first connecting block (202) is installed at the output shaft end of the driving motor (201), a hollow column (3) is fixedly connected to the top of one side of the fixed seat (2), a servo motor (301) is installed on one side of the hollow column (3), and a threaded rod (301) is installed at the output shaft end of the servo motor (301). 02), one side of the outer side of the threaded rod (302) is threadedly connected to a threaded block (303), the bottom end of the threaded block (303) is fixedly connected to a first fixed block (304), the bottom end of the first fixed block (304) is fixedly connected to a guide block (4), a wire winding roller (5) is arranged on one side of the first connecting block (202), square grooves (501) are arranged in the middle positions of both sides of the wire winding roller (5), the inside of the square groove (501) is movably connected to the first connecting block (202), a through groove (502) is arranged inside one side of the wire winding roller (5), and a bolt (6) is threadedly connected to one side of the top of the wire winding roller (5).

2. The wire winding mechanism of a wire-cut electric discharge machine according to claim 1, characterized in that: The bottom end of the bolt (6) is rotatably connected to a pressure plate (601), and one side of the pressure plate (601) is fixedly connected to a limiting block (602).

3. The wire winding mechanism of a wire-cut electric discharge machine tool according to claim 1, characterized in that: A sliding rod (7) is fixedly connected to the middle position of one side of the interior of the base (1), a sliding block (701) is slidably connected to the exterior of the sliding rod (7), and a second fixed block (702) is fixedly connected to the top of the sliding block (701).

4. The wire winding mechanism of the electric spark wire cutting machine tool according to claim 3, characterized in that: The top end of the second fixed block (702) is fixedly connected to a movable seat (8), the middle position of one side of the movable seat (8) is rotatably connected to a second connecting block (801), and the outside of the second connecting block (801) is movably connected to a square groove (501).

5. The wire winding mechanism of the electric spark wire cutting machine tool according to claim 4, characterized in that: The bottom end of one side of the movable seat (8) is fixedly connected to a hollow block (9), the top of the hollow block (9) is internally slidably connected to a pull rod (901), and the bottom end of the pull rod (901) is fixedly connected to a movable block (902).

6. The wire winding mechanism of the electric spark wire cutting machine tool according to claim 5, characterized in that: The top end of the movable block (902) is fixedly connected to a spring (903), and the middle position of the bottom end of the movable block (902) is fixedly connected to a positioning rod (904).

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