Cutting mechanism of wire cutting machine

Abstract

The utility model discloses a cutting mechanism of a wire cutting machine, which comprises a machine frame, a round hole is arranged inside the machine frame, an inner cavity of the round hole is rotatably connected with a two-way lead screw, two ends of the two-way lead screw are respectively in threaded connection with a nut seat, and one side surface of each of the two nut seats is fixedly connected with a connecting arm. The inner wall of one side of the machine frame is provided with a sliding groove, the width of the sliding groove corresponds to that of the connecting arm, an inner cavity of the sliding groove is communicated with an inner cavity of the round hole, and one end of the connecting arm penetrates through the sliding groove and extends into the machine frame. According to the hardware clamping device, the two-way lead screw is arranged, the nut seat in threaded connection with the surface of the two-way lead screw moves inwards at the same time, the connecting plate is driven by the connecting arm to clamp hardware, the surface of the rolling wheel is tightly attached to the hardware, and therefore the hardware clamping device is suitable for hardware of different thicknesses, and the applicability of the mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware processing equipment, in particular to a cutting mechanism of a wire cutting machine. Background Art

[0002] In the prior art, the technical principle of wire cutting is mainly to use copper drum linear tools, such as metal wire, molybdenum wire, etc. to cut raw materials (guide point materials), and use moving metal wire (molybdenum wire, copper wire or alloy wire) as electrode wire. Pulse electric spark discharge between the electrode wire and the workpiece generates high temperature to melt or vaporize the metal, forming a cut, thereby cutting the hardware.

[0003] According to the Chinese patent with the publication number CN220805786U, a wire cutting mechanism is disclosed, including upper and lower adjustment rollers, the area between the two adjustment rollers forms the cutting area of ​​the workpiece; and a cutting wire is arranged between the two adjustment rollers, and a transmission roller and a winding mechanism are installed above the upper adjustment roller and below the lower adjustment roller, and the cutting wire passes through the transmission roller and is wound on the winding mechanism accordingly. In the device, the area between the two adjustment rollers is the cutting area, and transmission rollers and winding mechanisms are arranged at the upper and lower parts, and the transmission direction can be set to be transmitted from the upper winding mechanism to the lower winding mechanism, which can complete the wire cutting accordingly, and the device is also provided with a laser positioning system to locate the position of the workpiece in the middle and adjust the transmission speed of the transmission roller and the upper winding mechanism accordingly through the PC control system, so that the quality and efficiency of the wire cutting can be controlled accordingly, so that the cutting is smooth and uniform.

[0004] The above-mentioned wire cutting mechanism has some problems in use. The distance between the two sets of transmission mechanisms cannot be adjusted according to the thickness of the hardware, so it can only process a single type of hardware, and thus has low applicability. Utility Model Content

[0005] The utility model aims to provide a cutting mechanism of a wire cutting machine to solve the problem that the background technology can only process hardware of a single model, thus having low applicability.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cutting mechanism of a wire cutting machine comprises a frame, a circular hole is opened inside the frame, a bidirectional lead screw is rotatably connected to the inner cavity of the circular hole, nut seats are respectively threadedly connected to the two ends of the bidirectional lead screw, connecting arms are fixedly connected to one side surface of two groups of nut seats, a slide groove with a width corresponding to the connecting arm is opened on the inner wall of one side of the frame, the inner cavity of the slide groove is connected with the inner cavity of the circular hole, one end of the connecting arm passes through the slide groove and extends to the inside of the frame, one end of the connecting arm is fixedly connected to a connecting plate, rollers are rotatably connected to the opposite sides of the two groups of connecting plates, and a wire cutting component for cutting hardware is provided at the bottom of the frame.

[0008] Preferably, the wire cutting assembly includes circular holes opened on the upper and lower surfaces of a frame, a plurality of guide wheels are installed on the surface of the frame, the axial symmetry line of the circular hole and the guide wheel groove of the guide wheel are in the same horizontal line, a second servo motor is fixedly installed on the bottom of the frame and on one side of the circular hole, a wire drum disk is fixedly installed on the driving shaft of the second servo motor, a conductive block is fixedly installed on the opposite side of the frame and on one side of the circular hole, the wire groove of the conductive block and the center point of the circular hole are in the same horizontal plane, a DSP controller is fixedly installed on one side of the frame, the input end of the second servo motor is connected to the signal output end of the DSP controller through a wire and the second servo motor is controlled by the DSP controller.

[0009] Preferably, connecting rods are fixedly installed on the top of both sides of the guide wheel located on the bottom surface of the frame, and one end of the two groups of connecting rods is connected to a guide ring.

[0010] Preferably, a first servo motor is fixedly mounted on the top of the frame, an output shaft key of the first servo motor is connected to one end of a bidirectional lead screw, and a signal input end of the first servo motor is connected to a signal input end of a DSP controller via a wire.

[0011] Preferably, bearings are embedded at the upper and lower ends of the circular hole, and the upper and lower end surfaces of the bidirectional lead screw are plugged and connected to the inner ring of the bearing.

[0012] Preferably, a rotating motor is fixedly mounted on one side surface of the connecting plate located above, the output shaft of the rotating motor passes through the connecting plate and is fixedly connected to one group of rollers, and the rotating motor is controlled by a DSP controller.

[0013] Preferably, guide blocks are fixedly mounted on both sides of the two groups of connecting arms, guide grooves corresponding to the guide blocks are opened on both sides of the slide groove, and the guide blocks are slidably connected to the inner cavity of the guide groove.

[0014] Preferably, a limiting groove is opened at the top of one end of the connecting arm located below, and the inner cavity of the limiting groove is slidably connected to a positioning plate, and the surface of the connecting plate located below is threadedly connected to a threaded column, one end of the threaded column is rotatably connected to a connecting block, and the other end of the threaded column is fixedly connected to a turntable, and the top surface of the connecting block is fixedly connected to the bottom surface of the positioning plate.

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

[0016] 1. The utility model sets a bidirectional lead screw and rotates the bidirectional lead screw according to the thickness of the hardware, so that the nut seat threadedly connected to the surface of the bidirectional lead screw moves inward at the same time, and drives the connecting plate to clamp the hardware through the connecting arm, and makes the surface of the roller close to the hardware, so that it is suitable for hardware of different thicknesses, thereby improving the applicability of the mechanism.

[0017] 2. The utility model sets a rotating motor, which rotates to push the hardware toward the molybdenum wire without manual movement of the hardware, and the speed at which the hardware moves forward can be accurately controlled by the DSP controller.

[0018] 3. The utility model places the processed hardware on the top of the connecting plate below through the setting of the threaded column, so that one side surface of the hardware is close to the raised edge of the positioning plate, and the turntable is rotated according to the width of the hardware to move the positioning plate to one side, and the hardware is pushed to one side while moving, so that the cutting line of the hardware is aligned with the cutting wire, thereby improving the applicability of the mechanism, and when cutting, only one side of the hardware needs to be supported, so that one side of the hardware is close to the raised edge of the positioning plate, thereby preventing the hardware from being affected by the rotating motor and deviating to one side. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a cutting mechanism of a wire cutting machine of the utility model;

[0020] Figure 2 It is a schematic structural diagram of a cross-section of the frame of the utility model;

[0021] Figure 3 It is a schematic cross-sectional structural diagram of the connecting arm of the utility model;

[0022] Figure 4 For this utility model Figure 1 Schematic diagram of the structure of the enlarged view at A in the middle.

[0023] In the figure: 100, frame; 101, roller; 102, rotating motor; 103, connecting plate; 104, first servo motor; 105, bolt; 106, circular hole; 107, connecting arm; 108, slide groove; 109, bearing; 110, bidirectional screw; 111, nut seat; 112, DSP controller; 200, second servo motor; 201, wire drum disc; 202, conductive block; 203, circular hole; 204, guide wheel; 205, connecting rod; 206, guide ring; 300, turntable; 301, threaded column; 302, positioning plate; 303, limit groove; 304, connecting block; 400, guide groove; 401, guide block. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 The present embodiment provides a cutting mechanism of a wire cutting machine, including a frame 100, a circular hole 106 is opened inside the frame 100, a bidirectional lead screw 110 is rotatably connected to the inner cavity of the circular hole 106, nut seats 111 are respectively threadedly connected to the two ends of the bidirectional lead screw 110, and a connecting arm 107 is fixedly connected to one side surface of the two groups of nut seats 111, a slide groove 108 with a width corresponding to the connecting arm 107 is opened on the inner wall of one side of the frame 100, the inner cavity of the slide groove 108 is connected to the inner cavity of the circular hole 106, one end of the connecting arm 107 passes through the slide groove 108 and extends to the inside of the frame 100, and one end of the connecting arm 107 is fixedly connected to the connecting plate 103, and the two groups of connecting plates The opposite side of 103 is rotatably connected with a roller 101, and the bottom of the frame 100 is provided with a wire cutting assembly for cutting hardware, wherein the outer surface of the roller 101 is set with elastic rubber, which causes the surface of the hardware to be clamped during the clamping of the hardware. Through the setting of the bidirectional lead screw 110, according to the thickness of the hardware, the bidirectional lead screw 110 is rotated so that the nut seat 111 threadedly connected to the surface of the bidirectional lead screw 110 moves inward at the same time, and drives the connecting plate 103 to clamp the hardware through the connecting arm 107, and makes the surface of the roller 101 close to the hardware, so that it is suitable for hardware of different thicknesses, thereby improving the applicability of the mechanism.

[0026] Furthermore, the wire cutting assembly includes circular holes 203 opened on the upper and lower surfaces of the frame 100, a plurality of guide wheels 204 are installed on the surface of the frame 100, the axisymmetric line of the circular hole 203 and the guide wheel 204 groove of the guide wheel 204 are in the same horizontal line, a second servo motor 200 is fixedly installed on the bottom of the frame 100 and on one side of the circular hole 203, a wire drum disc 201 is fixedly installed on the drive shaft of the second servo motor 200, a conductive block 202 is fixedly installed on the opposite side of the frame 100 and on one side of the circular hole 203, the wire groove of the conductive block 202 and the center point of the circular hole 203 are in the same horizontal plane, a DSP controller 112 is fixedly installed on one side of the frame 100, and the input end of the second servo motor 200 is connected to the D through a wire. The signal output end of the SP controller 112 and the second servo motor 200 are controlled by the DSP controller 112, wherein the model of the DSP controller 112 is TMS320F2812. Through the setting of the DSP controller 112, one end of the molybdenum wire wound on the surface of the wire drum disc 201 is passed through the guide ring 206 and pulled to one side, and then the molybdenum wire is pulled upward, and the molybdenum wire is placed in the guide wheel 204 groove of the guide wheel 204 in turn, and then passed through the circular holes 203 on the upper and lower sides in turn, and fixedly connected to the surface of the wire drum disc 201, and the molybdenum wire is kept in a tensioned state, and the parameters of the DSP controller 112 are adjusted according to the hardness of the hardware to control the rotation speed of the second servo motor 200, thereby improving the cutting efficiency and cutting effect of the hardware.

[0027] Furthermore, connecting rods 205 are fixedly installed on the top of both sides of the guide wheel 204 located on the bottom surface of the frame 100, and one end of the two groups of connecting rods 205 is connected to a guide ring 206. Through the setting of the guide ring 206, the molybdenum wire is guided and placed to deviate to one side.

[0028] It is worth mentioning that a first servo motor 104 is fixedly installed on the top of the frame 100, and the first servo motor 104 is fixedly connected to the surface of the frame 100 by bolts 105. The output shaft key of the first servo motor 104 is connected to one end of the bidirectional screw 110, and the signal input end of the first servo motor 104 is connected to the signal input end of the DSP controller 112 through a wire. Through the setting of the first servo motor 104, the number of rotations of the first servo motor 104 is accurately controlled by the DSP controller 112, thereby ensuring the clamping effect of the hardware.

[0029] Preferably, bearings 109 are embedded at the upper and lower ends of the circular hole 106, and the upper and lower end surfaces of the bidirectional screw 110 are plugged into the inner ring of the bearing 109 to fix the bidirectional screw 110 and prevent the surface of the bidirectional screw 110 from rubbing against the inner wall of the circular hole 203.

[0030] Furthermore, a rotating motor 102 is fixedly installed on one side surface of the upper connecting plate 103, and the output shaft of the rotating motor 102 passes through the connecting plate 103 and is fixedly connected to one group of rollers 101. The rotating motor 102 is controlled by the DSP controller 112. Through the setting of the rotating motor 102, the rotating motor 102 rotates to push the hardware toward the molybdenum wire without manually pushing the hardware, and the DSP controller 112 can accurately control the speed at which the hardware is pushed forward.

[0031] Furthermore, guide blocks 401 are fixedly installed on both sides of the two groups of connecting arms 107, and guide grooves 400 corresponding to the guide blocks 401 are opened on both sides of the slide groove 108. The guide blocks 401 are slidably connected to the inner cavity of the guide groove 400, which limits the direction of the connecting arm 107 and improves the force level of the connecting plate 103 located below.

[0032] It is worth noting that a limiting groove 303 is provided at the top of one end of the connecting arm 107 located at the bottom, and a positioning plate 302 is slidably connected to the inner cavity of the limiting groove 303. A threaded column 301 is threadedly connected to the surface of the connecting plate 103 located at the bottom, and one end of the threaded column 301 is rotatably connected to a connecting block 304, and the other end of the threaded column 301 is fixedly connected to a turntable 300. The top surface of the connecting block 304 is fixedly connected to the bottom surface of the positioning plate 302. Through the setting of the threaded column 301, the processed hardware can be placed at the bottom. The top of the connecting plate 103 is pressed against the surface of one side of the hardware, so that the surface of one side of the hardware is close to the raised edge of the positioning plate 302, and the turntable 300 is rotated according to the width of the hardware to move the positioning plate 302 to one side, and the hardware is pushed to one side while moving, so that the cutting line of the hardware is aligned with the cutting wire, thereby improving the applicability of the mechanism, and when cutting, only one side of the hardware needs to be pressed against so that one side of the hardware is close to the raised edge of the positioning plate 302, thereby preventing the hardware from being affected by the rotating motor 102 and deviating to one side.

[0033] Working principle:

[0034] First, take out the hardware to be processed, place the hardware on the top of the connecting plate 103 below, make one side surface of the hardware close to the raised edge of the positioning plate 302, and rotate the turntable 300 to move the positioning plate 302 to one side, and push the hardware to one side while moving, so that the cutting line of the hardware is aligned with the molybdenum wire, and then control the first servo motor 104 to rotate through the DSP controller 112, thereby driving the bidirectional lead screw 110 to rotate, and making the nut seat 111 threadedly connected to the surface of the bidirectional lead screw 110 move inward at the same time, and drive the connecting plate 10 through the connecting arm 107. 3. Clamp the hardware and make the surface of the roller 101 close to the hardware. At this time, one end of the molybdenum wire wound on the surface of the wire drum disc 201 is passed through the guide ring 206 and pulled to one side, and then the molybdenum wire is pulled upward, and the molybdenum wire is placed in the guide wheel 204 groove of the guide wheel 204 in turn, and then passed through the circular holes 203 on the upper and lower sides in turn, and fixedly connected to the surface of the wire drum disc 201, and the molybdenum wire is kept in a tensioned state, and then the hardware and the conductive block 202 are energized, and the rotating motor 102 and the second servo motor 200 are started. The rotating motor 102 pushes the hardware toward the molybdenum wire, thereby cutting the hardware.

[0035] 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 cutting mechanism of a wire cutting machine, characterized in that: The invention comprises a frame (100), wherein a circular hole (106) is provided inside the frame (100), a bidirectional lead screw (110) is rotatably connected to the inner cavity of the circular hole (106), nut seats (111) are respectively threadedly connected to the two ends of the bidirectional lead screw (110), a connecting arm (107) is fixedly connected to one side surface of two groups of the nut seats (111), and a slide groove (107) is provided on the inner wall of one side of the frame (100) with a width corresponding to that of the connecting arm (107). 108), the inner cavity of the slide groove (108) is connected to the inner cavity of the circular hole (106), one end of the connecting arm (107) passes through the slide groove (108) and extends to the inside of the frame (100), one end of the connecting arm (107) is fixedly connected to a connecting plate (103), and the opposite sides of the two groups of connecting plates (103) are rotatably connected to rollers (101), and the bottom of the frame (100) is provided with a wire cutting component for cutting hardware.

2. The cutting mechanism of a wire cutting machine according to claim 1, characterized in that; The wire cutting assembly comprises circular holes (203) formed on the upper and lower surfaces of a frame (100); a plurality of guide wheels (204) are mounted on the surface of the frame (100); the axis of symmetry of the circular hole (203) and the guide wheel (204) groove of the guide wheel (204) are located on the same horizontal line; a second servo motor (200) is fixedly mounted on the bottom of the frame (100) and on one side of the circular hole (203); a wire drum disc (201) is fixedly mounted on the drive shaft of the second servo motor (200); A conductive block (202) is fixedly mounted on one side of the frame (100) opposite to the circular hole (203); a wire groove of the conductive block (202) and a center point of the circular hole (203) are located in the same horizontal plane; a DSP controller (112) is fixedly mounted on one side surface of the frame (100); an input end of the second servo motor (200) is connected to a signal output end of the DSP controller (112) via a wire, and the second servo motor (200) is controlled by the DSP controller (112).

3. The cutting mechanism of a wire cutting machine according to claim 1, characterized in that: Connecting rods (205) are fixedly installed on the tops of both sides of the guide wheel (204) located on the bottom surface of the frame (100), and one end of the two groups of connecting rods (205) is connected to a guide ring (206).

4. The cutting mechanism of a wire cutting machine according to claim 1, characterized in that: A first servo motor (104) is fixedly mounted on the top of the frame (100); an output shaft of the first servo motor (104) is keyed to one end of a bidirectional lead screw (110); a signal input end of the first servo motor (104) is connected to a signal input end of a DSP controller (112) via a wire.

5. The cutting mechanism of a wire cutting machine according to claim 1, characterized in that: The upper and lower ends of the circular hole (106) are inlaid with bearings (109), and the upper and lower end surfaces of the bidirectional lead screw (110) are plug-connected to the inner ring of the bearing (109).

6. The cutting mechanism of a wire cutting machine according to claim 2, characterized in that: A rotating motor (102) is fixedly mounted on one side surface of the connecting plate (103) located at the top, an output shaft of the rotating motor (102) passes through the connecting plate (103) and is fixedly connected to one group of rollers (101), and the rotating motor (102) is controlled by a DSP controller (112).

7. The cutting mechanism of a wire cutting machine according to claim 1, characterized in that: Guide blocks (401) are fixedly installed on both sides of the two groups of connecting arms (107), and guide grooves (400) corresponding to the guide blocks (401) are opened on both sides of the slide groove (108), and the guide blocks (401) are slidably connected to the inner cavity of the guide groove (400).

8. The cutting mechanism of a wire cutting machine according to claim 1, characterized in that: A limiting groove (303) is provided at the top of one end of the connecting arm (107) located at the bottom, and a positioning plate (302) is slidably connected to the inner cavity of the limiting groove (303). A threaded column (301) is threadedly connected to the surface of the connecting plate (103) located at the bottom, and one end of the threaded column (301) is rotatably connected to a connecting block (304), and the other end of the threaded column (301) is fixedly connected to a rotating disk (300), and the top surface of the connecting block (304) is fixedly connected to the bottom surface of the positioning plate (302).

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