Automatic wire threading device for wire cutting

Abstract

The utility model discloses an automatic wire threading device for wire cutting, which belongs to the field of wire cutting equipment, and comprises an automatic wire threading mechanism mounted on a wire cutting machine, the automatic wire threading mechanism comprises a connecting arm fixedly connected to the wire cutting machine, one side of the top of the automatic wire threading mechanism is fixedly connected with a wire threading fixing mechanism, and the other side of the top of the automatic wire threading mechanism is fixedly connected with a wire threading device. One end of a silk thread is limited in a thread guide groove through a thread guide wheel, the silk thread is inserted into a positioner through an eye mold through a guider, automatic threading work is completed, a rotating handle is manually rotated, so that the rotating handle drives a reciprocating lead screw to rotate in an operation frame, the reciprocating lead screw is in threaded connection with a pushing plate, and the pushing plate is in threaded connection with the pushing plate. And the pushing plate pushes the pushing rod arranged on the side face to move, the guiding device is pressed through the pushing rod, the guiding device can be taken out from the interior of the connecting arm, the guiding device can be conveniently disassembled, manpower is saved, operation is easy and fast, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of wire cutting equipment, in particular to an automatic wire threading device for wire cutting. Background Art

[0002] CNC wire cutting is one of the common types of EDM, which uses a wire electrode to cut the workpiece by spark discharge. In CNC wire cutting, the relative movement of the workpiece and the wire electrode is controlled by digital information. It is often used to process high-hardness materials, fine structures, complex shapes, high-precision dimensional parts, and high-surface quality parts.

[0003] The Chinese patent application number 202322939373.2 discloses an automatic wire threading device for a wire cutting machine, including a lower wire rack, a guide assembly is provided on the lower wire rack, an eye mold is connected to the guide assembly, and a channel for the electrode wire to pass through is provided on the guide assembly and the eye mold; the lower wire rack is provided with a wire feeding assembly, and the wire feeding assembly is used to drive the electrode wire to move. The utility model has the advantages of compact structure and automatic wire feeding. The above scheme has the following defects: when disassembling and installing the guide, the existing automatic wire threading equipment requires workers to install and disassemble it with specific tools, which consumes a lot of manpower, and is inconvenient to operate and use.

[0004] Therefore, an automatic wire threading device for wire cutting is provided to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides an automatic wire threading device for wire cutting, aiming to solve the problem in the prior art that when disassembling and installing the guide, workers need to use specific tools to install and disassemble the existing automatic wire threading equipment, which consumes a lot of manpower and is inconvenient to operate and use.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic wire-threading device for wire cutting, comprising an automatic wire-threading mechanism installed on a wire-cutting machine, the automatic wire-threading mechanism comprising a connecting arm fixedly connected to the wire-cutting machine, a wire groove being provided on one side of the connecting arm, a wire wheel being rotatably connected inside the wire groove, a guide being rotatably connected to one end of the connecting arm, an eye mold being provided at the top of one end of the connecting arm, a positioner being provided at the bottom of one end of the connecting arm, and a wire-threading fixing mechanism being fixedly connected to one side of the top of the automatic wire-threading mechanism.

[0009] Preferably, in order to solve the problem that when existing automatic wire threading equipment is used to disassemble and install the guide, workers need to use specific tools to install and disassemble, which consumes a lot of manpower and is inconvenient to operate and use, the automatic wire threading mechanism includes an operating frame fixedly connected to the side of the connecting arm, the operating frame is rotatably connected to a reciprocating screw, and a push plate is arranged on the outside of the reciprocating screw. A push rod is fixedly connected to the side of the push plate close to the connecting arm. The reciprocating screw rotates inside the operating frame, so that the push plate arranged on the outside of the reciprocating screw can push the push rod to move, thereby removing the guide from the inside of the connecting arm through the push rod, which facilitates the installation and disassembly of the guide, is simple and quick to operate, and is easy to use.

[0010] Preferably, in order to solve the problem of the stability of the push plate movement, the reciprocating screw is threadedly connected to the push plate, one side of the push plate extends to the outside of the slot of the operating frame, and the push plate is slidingly connected to the operating frame, and the reciprocating screw is threadedly connected to the push plate, so that the push plate is forced to slide inside the operating frame, thereby improving the stability of the push plate movement.

[0011] Preferably, in order to solve the problem of convenient operation, a turning handle is provided on the outside of the operating frame, and the side of the turning handle close to the operating frame is fixedly connected to one end of the reciprocating screw extending into the interior of the operating frame. The reciprocating screw is driven to rotate inside the operating frame by the turning handle, thereby facilitating operation by the operator and being easy to use.

[0012] Preferably, in order to solve the problem of needing manpower to fix the wire reel during the threading process, the wire threading and fixing mechanism includes a fixing plate fixedly connected to the top of the connecting arm, the top of the fixing plate is fixedly connected to a placing rack, the top of the fixing plate is provided with a fixing groove, the top of the placing rack is symmetrically provided with a fixing rack, the bottom of the fixing rack is fixedly connected with a fixing rod adapted to the fixing groove, the placing rack and the fixing rack are rotatably connected to the inner groove on the opposite side of the fixing rack, the wire reel is placed inside the groove on the top of the placing rack, and the fixing rod provided at the bottom of the fixing rack is plugged into the fixing groove provided on the top of the placing rack, so that the wire reel is set between the placing rack and the fixing rack, which is convenient for installation and disassembly of the wire reel and easy to use.

[0013] Preferably, in order to solve the problem of wire entanglement, the bottom of the fixed frame away from the placing frame is fixedly connected with a connecting rod, and the internal sliding connection of the connecting rod is provided with a clamping block. The clamping block is slidingly arranged inside the connecting rod, and the wire wrapped outside the wire reel can be pressed by the clamping block to avoid the phenomenon of wire entanglement and chaos during the wire winding process. It is convenient to fix and save manpower, and the operation is simple and quick, and it is easy to use.

[0014] Preferably, in order to solve the problem of convenient use, a spring is provided inside the connecting rod, and the spring is fixedly connected to the connecting rod between one end of the clamping block provided inside the connecting rod and the connecting rod. A large amount of wire is wound around the outside of the wire reel, and the clamping block will compress the spring during the sliding process inside the connecting rod. As the wire wound around the outside of the wire reel becomes less and less, the clamping block will be affected by the rebound force of the spring and will always fit the wire wound around the outside of the wire reel, which is convenient to use.

[0015] Beneficial Effects

[0016] The automatic wire threading mechanism limits one end of the wire in the wire groove through the wire wheel, and inserts the wire into the interior of the positioner through the eye mold through the guide to complete the automatic wire threading work. The handle is manually rotated to drive the reciprocating screw to rotate inside the operating frame. The reciprocating screw is threadedly connected to the push plate, so that the push plate is forced to slide inside the operating frame. The push plate pushes the push rod set on the side to move. The guide can be taken out from the inside of the connecting arm by pressing the push rod, which is convenient for disassembly of the guide, saves manpower, is simple and quick to operate, and is easy to use.

[0017] The wire threading and fixing mechanism places the wire reel inside the top slot of the placing frame, and is plugged into the fixing slot opened on the top of the placing frame by a fixing rod provided at the bottom of the fixing frame, so that the wire reel is arranged between the placing frame and the fixing frame. In the original state, a large amount of wire is wound around the outside of the wire reel, and the clamping block will compress the spring during the sliding process inside the connecting rod. As the wire wound around the outside of the wire reel becomes less and less, the clamping block will be affected by the rebound force of the spring and will always fit the wire wound around the outside of the wire reel, so as to avoid the phenomenon of the wire being tangled and chaotic during the threading process. The fixation is convenient and manpower-saving, and the operation is simple and fast, and the use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic wire threading device for wire cutting;

[0019] Figure 2 It is a schematic diagram of the main structure of the automatic wire threading device for wire cutting;

[0020] Figure 3 Automatic wire threading device for wire cutting Figure 2 Schematic diagram of the structure at A in the middle;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the wire threading and fixing mechanism of the automatic wire threading device for wire cutting;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the guide of the automatic wire threading device for wire cutting.

[0023] In the figure:

[0024] 1. Automatic wire threading mechanism; 10. Connecting arm; 11. Wire groove; 12. Wire wheel; 13. Guide; 14. Eye mold; 15. Positioner; 16. Operating frame; 17. Reciprocating screw; 18. Push plate; 19. Push rod; 20. Turn handle; 2. Wire threading fixing mechanism; 21. Fixing plate; 22. Placement frame; 23. Fixing groove; 24. Wire reel; 25. Fixing frame; 26. Fixing rod; 27. Connecting rod; 28. Pressing block; 29. ​​Spring. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1

[0027] This embodiment provides an automatic wire threading device for wire cutting, such as Figure 1-5 As shown, the automatic wire threading device for wire cutting comprises an automatic wire threading mechanism 1 installed on the wire cutting machine, the automatic wire threading mechanism 1 comprises a connecting arm 10 fixedly connected to the wire cutting machine, a wire groove 11 is provided on one side of the connecting arm 10, a wire wheel 12 is rotatably connected inside the wire groove 11, a guide 13 is rotatably connected to one end of the connecting arm 10, an eye mold 14 is provided on the top of one end of the connecting arm 10, a positioner 15 is provided on the bottom of one end of the connecting arm 10, and a wire threading fixing mechanism 2 is fixedly connected to one side of the top of the automatic wire threading mechanism 1;

[0028] Through the above technical solution, one end of the wire is limited in the wire groove 11 by the wire wheel 12, and the wire is inserted into the positioner 15 through the eye mold 14 by the guide 13, completing the automatic threading work, and the wire reel is pressed and fixed by the set wire threading fixing mechanism 2, avoiding the phenomenon of the wire being tangled and chaotic during the threading process, which is convenient for fixing and saving manpower, simple and fast to operate, and easy to use;

[0029] Specifically, the automatic threading mechanism 1 includes an operating frame 16 fixedly connected to the side of the connecting arm 10, the operating frame 16 is internally rotatably connected to a reciprocating screw 17, a push plate 18 is disposed outside the reciprocating screw 17, and a push rod 19 is fixedly connected to one side of the push plate 18 close to the connecting arm 10;

[0030] Through the above technical solution, the reciprocating screw 17 rotates inside the operating frame 16, so that the pushing plate 18 set outside the reciprocating screw 17 can push the pushing rod 19 to move, so that the guide 13 can be taken out from the inside of the connecting arm 10 through the pushing rod 19, which facilitates the installation and disassembly of the guide 13, and the operation is simple, fast and easy to use.

[0031] Further, the reciprocating screw 17 is threadedly connected to the push plate 18, one side of the push plate 18 extends to the outside of the slot of the operating frame 16, and the push plate 18 is slidably connected to the operating frame 16;

[0032] Through the above technical solution, the reciprocating screw 17 is threadedly connected to the pushing plate 18, so that the pushing plate 18 is forced to slide inside the operating frame 16, thereby improving the stability of the movement of the pushing plate 18.

[0033] Furthermore, a turning handle 20 is disposed outside the operating frame 16, and a side of the turning handle 20 close to the operating frame 16 is fixedly connected to an end of the reciprocating screw 17 extending to the inside of the operating frame 16;

[0034] Through the above technical solution, the reciprocating screw 17 is driven to rotate inside the operating frame 16 by the turning handle 20, so that the operator can operate conveniently and the use is convenient.

[0035] Example 2

[0036] Different from Example 1, Figure 1-4 As shown, the automatic wire threading device for wire cutting includes a wire threading fixing mechanism 2, which includes a fixing plate 21 fixedly connected to the top of the connecting arm 10, a placing frame 22 fixedly connected to the top of the fixing plate 21, a fixing groove 23 is opened at the top of the fixing plate 21, a fixing frame 25 is symmetrically arranged on the top of the placing frame 22, a fixing rod 26 adapted to the fixing groove 23 is fixedly connected to the bottom of the fixing frame 25, and a wire disc 24 is rotatably connected to the inner groove of the placing frame 22 on the opposite side of the fixing frame 25;

[0037] Through the above technical solution, the wire reel 24 is placed inside the top slot of the placement rack 22, and the fixing rod 26 set at the bottom of the fixing rack 25 is plugged into the fixing slot 23 opened at the top of the placement rack 22, so that the wire reel 24 is set between the placement rack 22 and the fixing rack 25, which is convenient for installation and disassembly of the wire reel 24 and easy to use.

[0038] Specifically, a connecting rod 27 is fixedly connected to the bottom of the fixing frame 25 away from the placing frame 22, and a pressing block 28 is slidably connected inside the connecting rod 27;

[0039] Through the above technical solution, the clamping block 28 that is slidably set inside the connecting rod 27 can press the wire wrapped around the outside of the wire reel 24 through the clamping block 28, so as to avoid the phenomenon of the wire being tangled and chaotic during the wire winding process, which is convenient for fixation and saves manpower, and is simple, quick and easy to operate and easy to use.

[0040] Furthermore, a spring 29 is disposed inside the connecting rod 27, and the spring 29 is fixedly connected between one end of the pressing block 28 disposed inside the connecting rod 27 and the connecting rod 27;

[0041] Through the above technical solution, in the original state, a large amount of silk thread is wound around the outside of the wire reel 24, and the clamping block 28 will compress the spring 29 during the sliding process inside the connecting rod 27. As the silk thread wound around the outside of the wire reel 24 becomes less and less, the clamping block 28 will be affected by the rebound force of the spring 29 and will always fit the silk thread wound around the outside of the wire reel 24, which is convenient to use.

[0042] It should be noted that the wire wheel 12, the eye mold 14 and the positioner 15 are existing equipment, and their working principles, sizes and models are irrelevant to the functions of the present application, so they are not described in detail. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0043] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A wire cutting automatic wire threading device, comprising an automatic wire threading mechanism (1) installed on a wire cutting machine, characterized in that: The automatic wire threading mechanism (1) comprises a connecting arm (10) fixedly connected to the wire cutting machine, a wire groove (11) is provided on one side of the connecting arm (10), a wire wheel (12) is rotatably connected inside the wire groove (11), one end of the connecting arm (10) is rotatably connected to a guide (13), an eye mold (14) is provided at the top of one end of the connecting arm (10), a positioner (15) is provided at the bottom of one end of the connecting arm (10), and a wire threading fixing mechanism (2) is fixedly connected to one side of the top of the automatic wire threading mechanism (1); The automatic wire threading mechanism (1) comprises an operating frame (16) fixedly connected to the side of the connecting arm (10), the interior of the operating frame (16) is rotatably connected to a reciprocating screw (17), the exterior of the reciprocating screw (17) is provided with a pushing plate (18), and the side of the pushing plate (18) close to the connecting arm (10) is fixedly connected to a pushing rod (19).

2. The automatic wire threading device for wire cutting according to claim 1, characterized in that: The reciprocating screw (17) is threadedly connected to a push plate (18), one side of the push plate (18) extends to the outside of a slot of an operating frame (16), and the push plate (18) is slidably connected to the operating frame (16).

3. The automatic wire threading device for wire cutting according to claim 1 is characterized in that: A turning handle (20) is arranged outside the operating frame (16), and a side of the turning handle (20) close to the operating frame (16) is fixedly connected to an end of the reciprocating screw (17) extending into the interior of the operating frame (16).

4. The automatic wire threading device for wire cutting according to claim 1, characterized in that: The wire threading and fixing mechanism (2) comprises a fixing plate (21) fixedly connected to the top of the connecting arm (10); a placing frame (22) is fixedly connected to the top of the fixing plate (21); a fixing groove (23) is provided at the top of the fixing plate (21); a fixing frame (25) is symmetrically arranged at the top of the placing frame (22); a fixing rod (26) matched with the fixing groove (23) is fixedly connected to the bottom of the fixing frame (25); a wire reel (24) is rotatably connected to the inside of the groove on the opposite side of the placing frame (22) and the fixing frame (25).

5. The automatic wire threading device for wire cutting according to claim 4 is characterized in that: A connecting rod (27) is fixedly connected to the bottom of one side of the fixing frame (25) away from the placing frame (22), and a pressing block (28) is slidably connected inside the connecting rod (27).

6. The automatic wire threading device for wire cutting according to claim 5, characterized in that: A spring (29) is arranged inside the connecting rod (27), and the spring (29) is fixedly connected between one end of a pressing block (28) arranged inside the connecting rod (27) and the connecting rod (27).

Images