Induction wire clamping device for replacing copper pipe of spark erosion drilling machine

Abstract

The utility model provides a spark erosion drilling machine copper pipe replacement induction wire clamping device which comprises a pushing air cylinder, the output end of the pushing air cylinder is connected with a wire clamping air cylinder, the output end of the wire clamping air cylinder points to a copper pipe, the lower portion of the wire clamping air cylinder is connected with a movable air cylinder, and the movable air cylinder and the wire clamping air cylinder are in insulation connection. The output end of the moving air cylinder is connected with a conductor plate, the conductor plate is connected with a wire and electrically connected with the control system, and the control system drives the pushing air cylinder to drive the wire clamping air cylinder to get close to and clamp a copper pipe and drives the clamping driving mechanism to move upwards. When the copper pipe needs to be fed down by the feeding mechanism, the movable air cylinder drives the conductor plate to extend to the lower portion of the copper pipe, and when the copper pipe makes contact with the conductor plate, a signal is sent to the control system, the copper pipe clamping air cylinder can extend out to clamp the copper pipe, the clamping driving mechanism moves upwards to a designated position, and induction and replacement of the copper pipe can be completed.

Description

Technical Field

[0001] The utility model relates to the field of electric spark punching equipment, in particular to an induction wire grabbing device for replacing copper tubes of an electric spark punching machine. Background Art

[0002] The principle of the electric spark punching machine is to achieve the purpose of perforation by generating high-temperature corrosion of metal through discharge between the electrode and the metal. It is widely used in precision mold processing. During the processing, the copper tube (electrode) will be continuously consumed. When the length of the copper tube cannot meet the processing requirements, it needs to be replaced. The electric spark punching machine generally has a device for replacing the copper tube, such as the rotating clamping device and the automatic copper tube changing device of the electric spark punching machine disclosed in CN220838314 U, which is a design previously applied for by the applicant. After the copper tube is consumed to the end, this design uses a sensor set at the wire clamping device to sense the end of the copper tube. The applicant's prior application CN 221516394U discloses an electric spark punching machine also disclosed about a copper tube changing device, which also uses a sensor to sense whether the copper tube has passed. However, in actual application, because the copper tube is very thin, the sensor may not sense it when sensing, resulting in instability. As a result, when the copper tube needs to be replaced, the wire clamping device does not work and the wire cannot be changed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes an induction wire grabbing device for replacing copper tubes in an electrospark punching machine, wherein the electrospark punching machine includes a column, a clamping drive mechanism for driving the copper tube to rotate is slidably connected to the column, a copper tube unloading mechanism is provided on the upper part of the clamping drive mechanism, and the copper tube unloading mechanism delivers the copper tube to the clamping drive mechanism and passes the copper tube through the clamping drive mechanism;

[0004] It includes a connecting plate fixed to the side wall of the column, a pushing cylinder is provided on the connecting plate, the output end of the pushing cylinder is connected to the copper tube clamping cylinder, the output end of the copper tube clamping cylinder points to the copper tube, the lower part of the copper tube clamping cylinder is connected to a moving cylinder, and the moving cylinder and the copper tube clamping cylinder are insulated;

[0005] The output end of the movable cylinder is connected to a conductor plate, a wire is connected to the conductor plate and is electrically connected to the control system, and the clamping drive mechanism is also connected to a wire and is electrically connected to the control system. After the copper tube feeding mechanism sends the copper tube down, it contacts the conductor plate through the clamping mechanism and generates an electrical signal which is then sent to the control system. The control system drives the pushing cylinder to drive the copper tube clamping cylinder to approach and clamp the copper tube, and drives the clamping drive mechanism to move upward.

[0006] Preferably, an insulating plate is fixedly connected to the lower portion of the cylinder body of the copper tube clamped cylinder, and the lower portion of the insulating plate is fixedly connected to the movable cylinder.

[0007] Preferably, a machine platform is provided at the lower part of the column, an eye mold is provided on the machine platform, and the copper tube passes through the eye mold for electric spark machining.

[0008] Preferably, a module is provided in the column, and the module drives the clamping drive mechanism to move up and down.

[0009] Preferably, the output end of the pushing cylinder points to the copper tube.

[0010] The induction wire-grabbing device for replacing copper tubes in an electric spark punching machine proposed by the utility model has the following beneficial effects: the device cancels the original sensor and selects a conductor plate. When the copper tube needs to be sent down by the feeding mechanism, the mobile cylinder drives the conductor plate to extend to the lower part of the copper tube. When the copper tube contacts the conductor plate, a signal is given to the control system, and the copper tube clamping cylinder is extended to clamp the copper tube. The clamping drive mechanism is moved up to the specified position to complete the sensing and replacement of the copper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0012] Figure 1 This is a schematic diagram of the utility model installed on a machine platform;

[0013] Figure 2 It is a schematic structural diagram of the utility model of the present invention;

[0014] Figure 3 This is a schematic diagram of the working action of the utility model;

[0015] Among them, 1. Column; 2. Clamping drive mechanism; 3. Copper tube unloading mechanism; 4. Connecting plate; 5. Pushing cylinder; 6. Copper tube clamping cylinder; 7. Moving cylinder; 8. Conductor plate; 9. Insulating plate; 10. Machine table; 11. Copper tube; 12. Eye mold. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0017] Example

[0018] like Figure 1 、 Figure 2As shown, the utility model proposes an induction wire grabbing device for replacing copper tubes in an electrospark punching machine, the electrospark punching machine includes a column 1, a clamping drive mechanism 2 for driving a copper tube 11 to rotate is slidably connected to the column 1, a module is provided in the column 1, which can be a screw module, etc., and the existing machine 10 has the same design, the module drives the clamping drive mechanism 2 to move up and down, and a copper tube unloading mechanism 3 is provided on the upper part of the clamping drive mechanism 2, the copper tube unloading mechanism 3 sends the copper tube 11 to the clamping drive mechanism 2 and passes through the clamping drive mechanism 2 of the copper tube 11; wherein the clamping drive mechanism 2 and the copper tube unloading mechanism 3 can be referred to the prior application CN 220838314 U rotating clamping device and automatic copper tube changing device for electric spark punching machine, and this device also has a watertight mechanism, etc., this application will not be reviewed here, this embodiment also includes a connecting plate 4 fixed to the side wall of the column 1, and a pushing cylinder 5 is provided on the connecting plate 4, and the output end of the pushing cylinder 5 is connected to the copper tube clamping cylinder 6, and the output end of the copper tube clamping cylinder 6 points to the copper tube 11, and the lower part of the copper tube clamping cylinder 6 is connected to a moving cylinder 7, and the moving cylinder 7 and the copper tube clamping cylinder 6 are insulated. The insulating connection is fixed on the insulating plate 9 by the moving cylinder 7. The insulating plate 9 can be made of rubber blocks and other materials. The insulating plate 9 is fixed on the pushing cylinder 5 and can be connected by screws or adhesion. The form is not limited. The insulating connection is to prevent the copper tube clamping cylinder 6 from being connected to the system and causing a short circuit after clamping the copper tube 11.

[0019] The output end of the movable cylinder 7 is connected to a conductor plate 8, which is connected to a wire and electrically connected to the control system. When the copper tube 11 delivered by the copper tube feeding mechanism 3 contacts the conductor plate 8, the control system drives the push cylinder 5 to drive the copper tube clamping cylinder 6 to approach and clamp the copper tube 11, and drives the clamping drive mechanism 2 to move upward. A machine table 10 is provided at the bottom of the column 1, and an eye mold 12 is provided on the machine table 10. The copper tube 11 passes through the eye mold 12 for electric spark machining.

[0020] The working mode of the utility model is: Figure 3 As shown, after the clamping drive mechanism 2 reaches the specified position, the moving cylinder 7 pushes the conductor plate 8 to extend, and the copper tube feeding mechanism 3 sends the copper tube 11 down to contact the conductor plate 8. After the clamping drive mechanism 2 contacts the conductor plate 8 through the copper tube 11, the wires on the clamping drive mechanism 2 will be connected through the copper tube 11 and the wires on the conductor plate 8 to generate an electrical signal to the control system. At this time, the pushing cylinder 5 extends the tube clamping cylinder 6 to clamp the copper tube 11. The control system controls the module to drive the clamping drive mechanism 2 to move up to the specified position. The copper tube clamping cylinder 6 opens and pushes the cylinder 5 back, and the moving cylinder 7 also backs off. The clamping drive mechanism 2 clamps the copper tube 11, and the clamping drive mechanism 2 moves downward to insert the copper tube 11 into the eye 12 and then start the discharge machining.

[0021] This solution achieves electrical connection by directly contacting the copper wire 11 with the conductor plate 8, thereby controlling the clamping and placement of the copper wire 11 and improving the inductive stability of the copper tube 11.

Claims

1. An induction clamping device for replacing copper tubes in an electric spark punching machine, the electric spark punching machine comprising a column, a clamping drive mechanism slidably connected to the column for driving the copper tube to rotate, a copper tube feeding mechanism disposed above the clamping drive mechanism, the copper tube feeding mechanism feeding the copper tube to the clamping drive mechanism and passing the copper tube through the clamping drive mechanism; It is characterized in that It includes a connecting plate fixed to the side wall of the column, a pushing cylinder is provided on the connecting plate, the output end of the pushing cylinder is connected to the copper tube clamping cylinder, the output end of the copper tube clamping cylinder points to the copper tube, the lower part of the copper tube clamping cylinder is connected to a moving cylinder, and the moving cylinder and the copper tube clamping cylinder are insulated; The output end of the movable cylinder is connected to a conductor plate, a wire is connected to the conductor plate and is electrically connected to the control system, and a wire is also connected to the clamping drive mechanism and is electrically connected to the control system. After the copper tube feeding mechanism sends the copper tube down, it contacts the conductor plate through the clamping mechanism and generates an electrical signal which is then sent to the control system. The control system drives the pushing cylinder to drive the copper tube clamping cylinder to approach and clamp the copper tube, and drives the clamping drive mechanism to move upward.

2. The induction wire clamping device for replacing copper tubes of an electric spark punching machine according to claim 1 is characterized in that: An insulating plate is fixedly connected to the lower portion of the cylinder body of the copper tube clamped cylinder, and the lower portion of the insulating plate is fixedly connected to the movable cylinder.

3. The induction wire clamping device for replacing copper tubes of an electric spark punching machine according to claim 2, characterized in that: A machine platform is provided at the lower part of the column, an eye mold is provided on the machine platform, and the copper pipe passes through the eye mold for electric spark machining.

4. The induction wire clamping device for replacing copper tubes of an electric spark punching machine according to claim 1, characterized in that: A module is provided in the column, and the module drives the clamping drive mechanism to move up and down.

5. The induction wire clamping device for replacing copper tubes of an electric spark punching machine according to claim 1, characterized in that: The output end of the pushing cylinder points to the copper tube.

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