Wire feeding structure of electric spark wire cutting machine

Abstract

The present invention relates to the technical field of electric spark wire cutting processing, and discloses a wire conveying structure of an electric spark wire cutting machine, comprising: a winding drum and a mounting frame, a threaded groove is formed through the surface of the winding drum, a support cylinder is movably sleeved on the inner wall of the winding drum, both sides of the support cylinder are provided with limit rings, and the surface of the limit ring is fixedly connected to the inner wall of the winding drum, the outer wall of the winding drum is rotatably connected to a first support frame and a second support frame through bearings, a plug-in column is fixedly inserted between the first support frame and the second support frame, an extension frame is provided on one side of the first support frame, and a pin is provided on the inner wall of the extension frame, and the first support frame is fixedly connected to the extension frame through the pin. The wire conveying structure of the electric spark wire cutting machine can be fixed in time when the external electrode wire is disconnected, so as to avoid the electrode wire on the surface of the winding drum body from spreading and rebounding and causing looseness, thereby ensuring the tightness and orderliness of the electrode wire winding.

Description

Technical Field

[0001] The invention relates to the technical field of electric spark wire cutting processing, in particular to a wire conveying structure of an electric spark wire cutting machine. Background Art

[0002] Wire EDM, sometimes called wire cutting, is a process that uses a continuously moving thin metal wire as an electrode wire to perform pulsed spark discharge to remove metal and cut the workpiece. Wire EDM is a special process that is different from traditional processing technology that requires mechanical force and mechanical energy to cut. It mainly uses electrical energy to process materials. Therefore, Wire EDM is not limited by material properties and can process any hardness, strength, and brittle materials. It occupies a very important position in the current mechanical processing.

[0003] When performing electrospark machining, an electrode wire is needed as an electrode. In order to reduce electrode wire vibration and avoid continuous conduction at the same position, the electrode wire needs to be tightened and gradually reeled in during use. When the external electrode wire is disconnected, the tension of the electrode wire on the reel is released, and the electrode wire on the surface of the reel is easy to spread out and rebound, resulting in looseness, which can easily cause the electrode wire on the surface of the reel to be tangled and disordered. Therefore, an electrospark wire cutting machine wire transport structure is needed to ensure normal wire release while being able to fix the external electrode wire in time when it is disconnected, so as to avoid the surface of the reel spreading and rebounding and causing looseness. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a wire feeding structure for an electric spark wire cutting machine, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: a wire feeding structure of an electric spark wire cutting machine, comprising: a winding drum and a mounting frame, a threaded groove is formed through the surface of the winding drum, a support cylinder is movably sleeved on the inner wall of the winding drum, limiting rings are provided on both sides of the support cylinder, and the surface of the limiting ring is fixedly connected to the inner wall of the winding drum, the outer wall of the winding drum is rotatably connected to a first support frame and a second support frame through bearings, a plug-in column is fixedly inserted between the first support frame and the second support frame, an extension frame is provided on one side of the first support frame, and a pin is provided on the inner wall of the extension frame, and the first support frame is fixedly connected to the extension frame through the pin, and the inner wall of the extension frame is rotatably connected to A fixed support guide wheel, and the number of fixed support guide wheels is two, a brake block is arranged inside the mounting frame, both sides of the brake block are slidably connected to one side of the first support frame and one side of the second support frame respectively, and the brake block is located between the first support frame and the second support frame, the upper surface of the brake block is fixedly fitted with an anti-slip pad, a spring is arranged between the brake block and the mounting frame, a fork plate is integrally arranged at the bottom of the brake block, a pry plate is rotatably connected to the inner wall of the mounting frame, a pressure plate is integrally arranged at one end of the pry plate away from the extension frame, and the lower surface of the pressure plate is movably connected to the upper surface of the fork plate, and the end of the pry plate away from the pressure plate is rotatably connected to the dynamic support guide wheel, and a wire mechanism is arranged above the winding reel.

[0006] Preferably, the wire mechanism includes a first wire wheel and a second wire wheel, the first wire wheel is rotatably connected to the inner wall of the first support frame and the inner wall of the second support frame, one side of the first support frame and one side of the second support frame are integrally provided with a wheel frame, the second wire wheel is rotatably connected to the inner wall of the wheel frame, and the number of first wire wheels is four, the number of second wire wheels is two, and every two first wire wheels and each second wire wheel form a group, and the two groups of first wire wheels and second wire wheels are respectively located at the top of the first support frame and the top of the second support frame, and the second wire wheels are vertically distributed to the first wire wheels.

[0007] Preferably, guide holes are provided through both sides of the mounting frame, and the guide holes are strip-shaped guide holes, a guide column is integrally provided on the surface of the brake block, and the outer wall of the guide column is slidably connected to the inner wall of the guide hole, and the number of guide holes and the number of guide columns are both four, and each guide hole and each guide column form a group, and the four groups of guide holes and guide columns are respectively located on both sides of the brake block.

[0008] Preferably, the inner bottom wall of the mounting frame is integrally connected with a support column, and the outer wall of the support column is slidably connected to the inner wall of the spring, one end of the spring is movably connected to the surface of the brake block, and the other end of the spring is movably connected to the inner bottom wall of the mounting frame.

[0009] Preferably, a limiting plate is integrally provided on one side of the mounting frame close to the pry plate, and the pry plate is located between the limiting plate and the mounting frame.

[0010] Preferably, the mounting frame is integrally connected to a support plate on the side away from the pry plate, and a mounting opening and a wire hole are respectively opened on the surface of the support plate, and the wire hole is located above the mounting opening, and a reel mounting mechanism is provided on the side of the support plate away from the winding reel.

[0011] Preferably, the reel mounting mechanism includes a clamping cylinder, a clamping edge and a deformation groove, the clamping cylinder is fixedly connected to the inner wall of the mounting port, the clamping edge is integrally connected to the surface of the clamping cylinder at one end away from the support plate, and the deformation groove is penetrated and opened on the outer wall of the clamping cylinder.

[0012] Preferably, the outer wall of the cartridge is movably sleeved with a reel body, and the surface of the reel body is wound with an electrode wire, and the electrode wire is wound on the inner wall of the thread groove, and the surface of the electrode wire is movably connected to the outer wall of the support cylinder.

[0013] Preferably, the surface of the electrode wire is movably connected to the surface of the fixed support guide wheel and the surface of the dynamic support guide wheel, and the electrode wire is located above the fixed support guide wheel, and the electrode wire is located below the dynamic support guide wheel.

[0014] Preferably, the first support frame and the second support frame are both fixedly connected to the mounting frame via a plug-in column, and one end of the plug-in column passes through one side of the mounting frame and extends to the other side of the mounting frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The wire transport structure of the electric spark wire cutting machine can fix the external electrode wire in time when it is disconnected through the arrangement of the winding drum, the mounting frame, the thread groove, the support cylinder, the limit ring, the first support frame, the second support frame, the plug-in column, the extension frame, the fixed support guide wheel, the brake block, the spring, the fork plate, the pry plate, the pressure plate, the dynamic support guide wheel and the wire mechanism, so as to avoid the electrode wire on the surface of the winding drum body from spreading and rebounding and causing looseness, thereby ensuring the tightness and orderliness of the winding of the electrode wire.

[0017] 2. The wire conveying structure of the electric spark wire cutting machine can facilitate the disassembly and assembly of the reel body and the replacement and maintenance of the electrode wire through the provided clamping barrel, clamping edge, deformation groove, reel body and electrode wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0020] Figure 3This is a schematic diagram of the internal explosion structure of the first support frame and the second support frame of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the first support frame and the second support frame of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal explosion structure of the reel body of the present invention;

[0023] Figure 6 It is a side sectional view of the winding reel of the present invention.

[0024] In the figure: 1. winding drum; 2. mounting frame; 3. threaded groove; 4. supporting cylinder; 5. limiting ring; 6. first supporting frame; 7. second supporting frame; 8. plug-in column; 9. extension frame; 10. fixed supporting guide wheel; 11. brake block; 12. spring; 13. fork plate; 14. pry plate; 15. pressure plate; 16. dynamic supporting guide wheel; 1701. first wire wheel; 1702. second wire wheel; 18. guide hole; 19. guide column; 20. supporting column; 21. limiting piece; 22. supporting plate; 23. mounting port; 24. wire hole; 2501. clamping cylinder; 2502. clamping edge; 2503. deformation groove; 26. reel body; 27. electrode wire; 28. anti-slip pad. 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-6A wire feeding structure of an electric spark wire cutting machine comprises: a winding drum 1 and a mounting frame 2, a thread groove 3 is formed through the surface of the winding drum 1, a support cylinder 4 is movably sleeved on the inner wall of the winding drum 1, and limit rings 5 ​​are arranged on both sides of the support cylinder 4, and the surface of the limit ring 5 is fixedly connected to the inner wall of the winding drum 1, and the outer wall of the winding drum 1 is rotatably connected with a first support frame 6 and a second support frame 7 through bearings, and a plug-in column 8 is fixedly inserted between the first support frame 6 and the second support frame 7, an extension frame 9 is arranged on one side of the first support frame 6, and a pin is arranged on the inner wall of the extension frame 9, and the first support frame 6 is fixedly connected to the extension frame 9 through the pin, and the inner wall of the extension frame 9 is rotatably connected with a fixed support guide wheel 10, and the number of the fixed support guide wheels 10 is two, and a brake block 11 is arranged inside the mounting frame 2, and the two sides of the brake block 11 are respectively slidably connected with one side of the first support frame 6 and one side of the second support frame 7, and the brake block 11 is located between the first support frame 6 and the second support frame 7, and the brake block 1 The upper surface of the brake block 11 is fixedly attached with an anti-slip pad 28, a spring 12 is arranged between the brake block 11 and the mounting frame 2, a fork plate 13 is integrally arranged at the bottom of the brake block 11, a pry plate 14 is rotatably connected to the inner wall of the mounting frame 2, a pressing plate 15 is integrally arranged at one end of the pry plate 14 away from the extension frame 9, and the lower surface of the pressing plate 15 is movably connected to the upper surface of the fork plate 13, and a moving support guide wheel 16 is rotatably connected to the end of the pry plate 14 away from the pressing plate 15, and a wire guide mechanism is arranged above the winding drum 1. The winding drum 1, mounting frame 2, threaded groove 3, supporting tube 4, limiting ring 5, first supporting frame 6, second supporting frame 7, plug-in column 8, extension frame 9, fixed supporting guide wheel 10, brake block 11, spring 12, fork plate 13, pry plate 14, pressure plate 15, dynamic supporting guide wheel 16 and wire mechanism can timely fix the external electrode wire 27 when it is disconnected, so as to avoid the electrode wire 27 on the surface of the winding drum body 26 from spreading and rebounding and causing looseness, thereby ensuring the tightness and orderliness of the winding of the electrode wire 27.

[0027] Among them; the wire mechanism includes a first wire wheel 1701 and a second wire wheel 1702, the first wire wheel 1701 is rotatably connected to the inner wall of the first support frame 6 and the inner wall of the second support frame 7, one side of the first support frame 6 and one side of the second support frame 7 are integrally provided with a wheel frame, the second wire wheel 1702 is rotatably connected to the inner wall of the wheel frame, and the number of first wire wheels 1701 is four, the number of second wire wheels 1702 is two, and every two first wire wheels 1701 and each second wire wheel 1702 form a group, and the two groups of first wire wheels 1701 and second wire wheels 1702 are respectively located at the top of the first support frame 6 and the top of the second support frame 7, and the second wire wheel 1702 is vertically distributed with the first wire wheel 1701 to facilitate the guidance of the electrode wire 27 to ensure that the electrode wire 27 can still move smoothly when the direction of the electrode wire 27 changes.

[0028] Among them, guide holes 18 are penetrated on both sides of the mounting frame 2, and the guide holes 18 are strip-shaped guide holes 18, and the surface of the brake block 11 is integrally provided with guide columns 19, and the outer wall of the guide column 19 is slidably connected to the inner wall of the guide hole 18, and the number of guide holes 18 and the number of guide columns 19 are both four, and each guide hole 18 and each guide column 19 are a group, and the four groups of guide holes 18 and guide columns 19 are respectively located on both sides of the brake block 11, so as to facilitate the use of the guide holes 18 and the guide columns 19 for guiding and avoiding the displacement of the brake block 11.

[0029] Among them; the inner bottom wall of the mounting frame 2 is integrally connected with the support column 20, and the outer wall of the support column 20 is slidably connected to the inner wall of the spring 12, one end of the spring 12 is movably connected to the surface of the brake block 11, and the other end of the spring 12 is movably connected to the inner bottom wall of the mounting frame 2, so that the brake block 11 can be pushed by the rebound reset of the spring 12.

[0030] Among them; the mounting frame 2 is integrally provided with a limiting piece 21 on one side close to the pry plate 14, and the pry plate 14 is located between the limiting piece 21 and the mounting frame 2, so as to limit the pry plate 14 and prevent the pry plate 14 from being excessively expanded.

[0031] Among them; the side of the mounting frame 2 away from the pry plate 14 is integrally connected with a support plate 22, and the surface of the support plate 22 is respectively penetrated by a mounting port 23 and a wire hole 24, and the wire hole 24 is located above the mounting port 23, and a reel mounting mechanism is provided on the side of the support plate 22 away from the winding reel 1 to facilitate the installation of the fixed clamping cylinder 2501.

[0032] Among them; the reel installation mechanism includes a cartridge 2501, a clamping edge 2502 and a deformation groove 2503, the cartridge 2501 is fixedly connected to the inner wall of the installation port 23, the clamping edge 2502 is integrally connected to the surface of the cartridge 2501 at one end away from the support plate 22, and the deformation groove 2503 penetrates through the outer wall of the cartridge 2501. Through the arrangement of the cartridge 2501, the clamping edge 2502, the deformation groove 2503, the reel body 26 and the electrode wire 27, the disassembly and assembly of the reel body 26 can be facilitated, and the replacement and maintenance of the electrode wire 27 are convenient.

[0033] Among them; the outer wall of the cartridge 2501 is movably sleeved with a reel body 26, and the surface of the reel body 26 is wound with an electrode wire 27, and the electrode wire 27 is wound on the inner wall of the thread groove 3, and the surface of the electrode wire 27 is movably connected to the outer wall of the support tube 4, so as to ensure that the electrode wire 27 is smoothly rolled on the inner wall of the thread groove 3, while ensuring that the electrode wire 27 has a larger exposed area concentrated, which is convenient for the anti-slip pad 28 to increase friction.

[0034] Among them, the surface of the electrode wire 27 is movably connected to the surface of the fixed support guide wheel 10 and the surface of the dynamic support guide wheel 16, and the electrode wire 27 is located above the fixed support guide wheel 10, and the electrode wire 27 is located below the dynamic support guide wheel 16, so that the support guide wheel 16 can be pulled by the pulling force of the electrode wire 27 to ensure that the plug-in column 8 is pried up.

[0035] Among them; the first support frame 6 and the second support frame 7 are fixedly connected to the mounting frame 2 through the plug-in column 8, one end of the plug-in column 8 passes through one side of the mounting frame 2 and extends to the other side of the mounting frame 2, so as to facilitate the connection of the first support frame 6 and the second support frame 7 to the mounting frame 2.

[0036] Working principle: when in use, the reel body 26 is clamped on the outer wall of the clamping barrel 2501, the end of the electrode wire 27 is pulled out from the surface of the reel body 26, the end of the electrode wire 27 is passed through the wire hole 24, and then bypassed from the edge of the first wire wheel 1701 at the top of the second support frame 7, and then bypassed from the edge of the second wire wheel 1702 at the top of the second support frame 7, and then wound in the thread groove 3, and then bypassed from the edge of the second wire wheel 1702 at the top of the first support frame 6, and then bypassed from the edge of the first wire wheel 1701 at the top of the first support frame 6, and then bypassed from above the right fixed support guide wheel 10 and the driven support guide wheel 16 is wound out from the bottom, and then wound out from the top of the left fixed support guide wheel 10 and fixed to other parts, so that the electrode wire 27 is stretched straight by the force, thereby lifting the movable support guide wheel 16, prying the plug-in column 8, pressing the fork plate 13 downward, the brake block 11 slides down, and the spring 12 contracts. When the outer end of the electrode wire 27 is disconnected, the tension of the electrode wire 27 on the movable support guide wheel 16 is released, the spring 12 is reset and pushes the brake block 11 to slide up, and the anti-skid pad 28 is close to the electrode wire 27 to increase the friction resistance on its surface, so that the end of the electrode wire 27 is fixed, thereby preventing the electrode wire 27 on the surface of the reel body 26 from spreading and rebounding and causing looseness.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire feeding structure for an electric spark wire cutting machine, characterized in that: include: A winding drum (1) and a mounting frame (2), wherein a thread groove (3) is formed through the surface of the winding drum (1), a support tube (4) is movably sleeved on the inner wall of the winding drum (1), both sides of the support tube (4) are provided with limit rings (5), and the surfaces of the limit rings (5) are fixedly connected to the inner wall of the winding drum (1), the outer wall of the winding drum (1) is rotatably connected to a first support frame (6) and a second support frame (7) through bearings, a plug-in column (8) is fixedly inserted between the first support frame (6) and the second support frame (7), an extension frame (9) is provided on one side of the first support frame (6), and a pin is provided on the inner wall of the extension frame (9), and the first support frame (6) is fixedly connected to the extension frame (9) through the pin, the inner wall of the extension frame (9) is rotatably connected to a fixed support guide wheel (10), and the number of the fixed support guide wheels (10) is two, and the mounting frame ( A brake block (11) is arranged inside the first support frame (6) and the second support frame (7), and the brake block (11) is slidably connected to one side of the first support frame (6) and one side of the second support frame (7) respectively, and the brake block (11) is located between the first support frame (6) and the second support frame (7). An anti-slip pad (28) is fixedly attached to the upper surface of the brake block (11). A spring (12) is arranged between the brake block (11) and the mounting frame (2). A fork plate (13) is integrally arranged at the bottom of the brake block (11). A pry plate (14) is rotatably connected to the inner wall of the mounting frame (2). A pressure plate (15) is integrally arranged at one end of the pry plate (14) away from the extension frame (9), and the lower surface of the pressure plate (15) is movably connected to the upper surface of the fork plate (13). A movable support guide wheel (16) is rotatably connected to one end of the pry plate (14) away from the pressure plate (15). A wire guide mechanism is arranged above the winding drum (1); The wire guide mechanism comprises a first wire guide wheel (1701) and a second wire guide wheel (1702), wherein the first wire guide wheel (1701) is rotatably connected to the inner wall of the first support frame (6) and the inner wall of the second support frame (7), one side of the first support frame (6) and one side of the second support frame (7) are both integrally provided with a wheel frame, and the second wire guide wheel (1702) is rotatably connected to the inner wall of the wheel frame, and the number of the first wire guide wheels (1701) is four, the number of the second wire guide wheels (1702) is two, and every two first wire guide wheels (1701) and every second wire guide wheel (1702) form a group, and the two groups of the first wire guide wheels (1701) and the second wire guide wheels (1702) are respectively located at the top of the first support frame (6) and the top of the second support frame (7), and the second wire guide wheels (1702) are vertically distributed with the first wire guide wheels (1701); Both sides of the mounting frame (2) are provided with guide holes (18), and the guide holes (18) are strip-shaped guide holes (18). The surface of the brake block (11) is provided with guide posts (19) in an integrated manner, and the outer wall of the guide post (19) is slidably connected to the inner wall of the guide hole (18). The number of the guide holes (18) and the number of the guide posts (19) are both four, and each guide hole (18) and each guide post (19) form a group, and the four groups of guide holes (18) and guide posts (19) are respectively located on both sides of the brake block (11); The inner bottom wall of the mounting frame (2) is integrally connected with a support column (20), and the outer wall of the support column (20) is slidably connected to the inner wall of the spring (12), one end of the spring (12) is movably connected to the surface of the brake block (11), and the other end of the spring (12) is movably connected to the inner bottom wall of the mounting frame (2); A limiting piece (21) is integrally provided on one side of the mounting frame (2) close to the pry plate (14), and the pry plate (14) is located between the limiting piece (21) and the mounting frame (2); The side of the mounting frame (2) away from the pry plate (14) is integrally connected to a support plate (22), and a mounting opening (23) and a wire hole (24) are respectively formed through the surface of the support plate (22), and the wire hole (24) is located above the mounting opening (23), and a winding drum mounting mechanism is provided on the side of the support plate (22) away from the winding drum (1); The reel installation mechanism comprises a cartridge (2501), a clamping edge (2502) and a deformation groove (2503); the cartridge (2501) is fixedly connected to the inner wall of the installation opening (23); the clamping edge (2502) is integrally connected to the surface of the cartridge (2501) at one end away from the support plate (22); and the deformation groove (2503) penetrates the outer wall of the cartridge (2501); The outer wall of the cartridge (2501) is movably sleeved with a reel body (26), and an electrode wire (27) is wound on the surface of the reel body (26), and the electrode wire (27) is wound on the inner wall of the thread groove (3), and the surface of the electrode wire (27) is movably connected to the outer wall of the support cylinder (4); The surface of the electrode wire (27) is movably connected to the surface of the fixed support guide wheel (10) and the surface of the dynamic support guide wheel (16), and the electrode wire (27) is located above the fixed support guide wheel (10), and the electrode wire (27) is located below the dynamic support guide wheel (16); the first support frame (6) and the second support frame (7) are both fixedly connected to the mounting frame (2) via a plug-in column (8), and one end of the plug-in column (8) passes through one side of the mounting frame (2) and extends to the other side of the mounting frame (2).

Images