Power supply protection device of wire cut electric discharge machine

Abstract

The utility model relates to a wire cut electric discharge machine power supply protection device, which belongs to the technical field of wire cut electric discharge machines, and comprises a machine body, a protection adjusting mechanism is arranged in the machine body, the protection adjusting mechanism comprises a protection frame fixedly connected to the outer side of the machine body, and the interior of the machine body is rotatably connected with a collecting roller. The front face of the collecting roller is fixedly connected with a fixed sleeve. According to the power protection device of the wire cut electric discharge machine, winding of redundant power lines and storage protection of the power lines can be achieved through rotation of the collecting roller, the power lines are effectively prevented from being damaged, when the power protection device is not used, a power plug can be moved to the protection frame through winding of the power lines, and the protection frame is automatically sealed through a sealing baffle; therefore, corrosion of external humid air to the current-conducting rod of the power plug is reduced as much as possible, and the power plug is protected. And the safety and the service life of the power connection structure on the machine body are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire electrical discharge machining (WEDM) machines, and particularly to a power protection device for a wire electrical discharge machining machine. Background Art

[0002] Wire electrical discharge machining (WEDM) machines are mainly used for manufacturing various molds, electrodes, and precision parts, and for machining complex cavities and curved surfaces of various conductors such as cemented carbide, hardened steel, graphite, aluminum alloy, structural steel, stainless steel, titanium alloy, and diamond; they adopt a computer control system, with full Chinese automatic drawing programming and control software. During machining, the trajectory and time are displayed, and the middle wire walking has the function characteristics of multiple cuts, so that the machining situation can be understood at any time.

[0003] In the prior art, wire electrical discharge machining (WEDM) machines are mainly connected to the working power supply through a power cord and a power plug. The power cord does not have a bundling structure, and if the power cord is too long, it is easy to cause wear, resulting in damage to the power cord and affecting its practical effect; moreover, the conductive rod of the power plug is exposed, and if the conductive rod is exposed to the air for a long time, it is easy to be corroded and rusted by the water vapor in the air, thus affecting the normal use of the conductive rod and having poor practical effect. In view of this, this application proposes a power protection device for a wire electrical discharge machining machine. Summary of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a power protection device for a wire electrical discharge machining machine, which has the advantages of plug protection, etc., and solves the problems that in the prior art, the power cord of the wire electrical discharge machining machine is too long and easy to cause wear, and the conductive rod of the power plug is exposed, and the conductive rod is easy to be corroded and rusted by the water vapor in the air, thus affecting the normal use of the conductive rod and having poor practical effect.

[0005] To achieve the above object, the utility model provides the following technical solution: A power protection device for a wire electrical discharge machining machine, including a machine body, and a protection and adjustment mechanism is arranged inside the machine body;

[0006] The protection and adjustment mechanism includes a protection frame fixedly connected to the outside of the machine body, a bundling roller is rotatably connected inside the machine body, a fixed sleeve is fixedly connected to the front surface of the bundling roller, a bundling motor is fixedly connected inside the machine body, a driving wheel is arranged inside the bundling motor, and a connection component for clamping the driving wheel is arranged inside the fixed sleeve;

[0007] A power cord is fixedly connected inside the bundling roller, a power plug fixedly connected to the power cord is movably connected inside the protection frame, a sealing baffle is movably connected inside the protection frame, a pushing component for pushing the sealing baffle is arranged on the top of the protection frame, and a limiting component for restricting the movement of the sealing baffle is arranged inside the protection frame.

[0008] Further, the connecting component includes an electric push rod fixedly connected inside the fixed sleeve. The output end of the electric push rod is fixedly connected with a positioning block, and a plurality of positioning grooves are formed on the outer side of the driving wheel.

[0009] Further, a guiding roller is fixedly connected inside the machine body on both the upper and lower sides of the power cord. A protective sleeve that is slidably adapted to the power cord is fixedly connected inside the protective frame.

[0010] Further, the pushing component includes a movable plate fixedly connected to the top of the sealing baffle. A fixed frame is fixedly connected to the top of the machine body. A guiding rod that is slidably connected to the movable plate is fixedly connected inside the fixed frame. A compression spring that is fixedly connected to the fixed frame and the movable plate is sleeved on the outer side of the guiding rod.

[0011] Further, the limiting component includes a movable abutting block movably connected inside the protective frame. A compression spring is fixedly connected inside the protective frame, and the other end of the compression spring is fixedly connected to the left side of the movable abutting block. A limiting plate that is slidably connected to the protective frame is fixedly connected to the right side of the movable abutting block.

[0012] Further, arc-shaped surfaces are provided on both the upper and lower inner walls of the protective frame. A rotating joint is installed at one end of the converging roller away from the fixed sleeve.

[0013] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0014] The power protection device for the wire electrical discharge machining machine can wind up the redundant power cord through the rotation of the converging roller, realizing the storage and protection of the power cord, effectively preventing the power cord from being damaged. And when not in use, by winding up the power cord, the power plug can be moved to the protective frame. The power plug presses the movable abutting block, which can cause the sealing baffle to lose its resistance, so that under the action of the pushing component, the sealing baffle can close the protective frame, thereby minimizing the erosion of the conductive rod of the power plug by external humid air and realizing the protection of the power plug; furthermore, it effectively improves the safety and service life of the power connection structure on the machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural sectional view of the present utility model;

[0016] Figure 2 is a top sectional view of the converging roller of the present utility model;

[0017] Figure 3 is a structural sectional view of the fixed sleeve of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the protective frame of the present utility model.

[0019] In the figure: 1, the body; 2, the protective frame; 3, the power plug; 4, the power cord; 5, the winding roller; 6, the fixed sleeve; 7, the winding motor; 8, the driving wheel; 9, the electric push rod; 10, the positioning block; 11, the positioning groove; 12, the guiding roller; 13, the sealing baffle; 14, the movable plate; 15, the fixing frame; 16, the guiding rod; 17, the compression spring; 18, the movable abutting block; 19, the compression spring; 20, the limiting plate; 21, the protective sleeve; 22, the rotating joint. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 to 4 , a power protection device for a wire electrical discharge machine tool in this embodiment includes a body 1, and a protection adjustment mechanism is arranged inside the body 1.

[0022] In this embodiment, the protection adjustment mechanism includes a protective frame 2 fixedly connected to the outside of the body 1. A winding roller 5 is rotatably connected inside the body 1. A fixed sleeve 6 is fixedly connected to the front of the winding roller 5. A winding motor 7 is fixedly connected inside the body 1. A driving wheel 8 is arranged inside the winding motor 7. A connection component for clamping the driving wheel 8 is arranged inside the fixed sleeve 6;

[0023] Among them, the connection component includes an electric push rod 9 fixedly connected to the inside of the fixed sleeve 6. The output end of the electric push rod 9 is fixedly connected to a positioning block 10. A plurality of positioning grooves 11 are opened on the outside of the driving wheel 8; it is convenient to make the positioning block 10 clamp the driving wheel 8 by using the positioning groove 11, so that the driving wheel 8 and the winding roller 5 rotate synchronously.

[0024] Among them, a power cord 4 is fixedly connected to the inside of the winding roller 5. Guiding rollers 12 are fixedly connected inside the body 1 on the upper and lower sides of the power cord 4. A protective sleeve 21 slidably adapted to the power cord 4 is fixedly connected inside the protective frame 2, which is convenient to reduce the friction between the protective frame 2 and the power cord 4 by using the protective sleeve 21, and the arranged guiding rollers 12 can prevent the power cord 4 from bumping against the body 1.

[0025] Among them, a power plug 3 fixedly connected to a power cord 4 is movably connected inside the protection frame 2. A rotating joint 22 is installed at one end of the winding roller 5 away from the fixed sleeve 6, which facilitates preventing the power cord 4 from being damaged due to excessive twisting by using the provided rotating joint 22. Arc-shaped surfaces are provided on the inner walls of the upper and lower sides of the protection frame 2, which facilitates the power plug 3 to smoothly enter the protection frame 2 by using the provided arc-shaped surfaces when winding the power cord 4.

[0026] In this embodiment, a sealing baffle 13 is movably connected inside the protection frame 2. A pushing component for pushing the sealing baffle 13 is provided at the top of the protection frame 2. The pushing component includes a movable plate 14 fixedly connected to the top of the sealing baffle 13. A fixed frame 15 is fixedly connected to the top of the machine body 1. A guide rod 16 slidably connected to the movable plate 14 is fixedly connected inside the fixed frame 15. A compression spring 17 fixedly connected to the fixed frame 15 and the movable plate 14 is sleeved on the outer side of the guide rod 16, which facilitates the movable plate 14 to drive the sealing baffle 13 to move downward under the action of the compression spring 17.

[0027] Among them, a limiting component for limiting the movement of the sealing baffle 13 is provided inside the protection frame 2. The limiting component includes a movable abutting block 18 movably connected inside the protection frame 2. A compression spring 19 is fixedly connected inside the protection frame 2, and the other end of the compression spring 19 is fixedly connected to the left side of the movable abutting block 18. A limiting plate 20 slidably connected to the protection frame 2 is fixedly connected to the right side of the movable abutting block 18, which facilitates the movable abutting block 18 to drive the limiting plate 20 to move rightward under the push of the compression spring 19, so that the limiting plate 20 abuts against the sealing baffle 13 to prevent the sealing baffle 13 from moving downward.

[0028] The beneficial effects of the above embodiment are as follows:

[0029] The power protection device of the wire electrical discharge machine tool can wind the redundant power cord 4 through the rotation of the winding roller 5, realize the storage and protection of the power cord 4, effectively prevent the power cord 4 from being damaged, and when not in use, the power plug 3 can be moved to the protection frame 2 by winding the power cord 4. The power plug 3 pressing the movable abutting block 18 can cause the sealing baffle 13 to lose its resistance, so that the sealing baffle 13 can close the protection frame 2 under the action of the pushing component, thereby minimizing the erosion of the conductive rod of the power plug 3 by external humid air and realizing the protection of the power plug 3; thereby effectively improving the safety and service life of the power connection structure on the machine body 1.

[0030] The working principle of the above embodiment is as follows:

[0031] When the power protection device of the wire electrical discharge machining machine is in use, the power cord 4 can be pulled out by pulling the power plug 3, so that the machine body 1 can be connected to an external working power supply by using the power cord 4 and the power plug 3; when the positioning block 10 does not extend into the positioning groove 11, the rotation of the wire-winding drum 5 will not be restricted by the wire-winding motor 7 and the driving wheel 8. Therefore, by pulling the power plug 3, the power cord 4 can drive the wire-winding drum 5 to rotate clockwise;

[0032] After the power plug 3 is connected to an external working power supply, the positioning block 10 can be used to clamp the driving wheel 8 by using the positioning groove 11 through the operation of the electric push rod 9, so that the driving wheel 8 and the wire-winding drum 5 rotate synchronously. At this time, operating the wire-winding motor 7 can drive the driving wheel 8 to rotate, so as to drive the wire-winding drum 5 to rotate to wind up the redundant power cord 4;

[0033] When it is not needed and the power plug 3 is disconnected from the external working power supply, the power plug 3 can be moved to the protective frame 2 by winding up the power cord 4. When the power plug 3 presses the movable abutting block 18, the movable abutting block 18 can drive the limiting plate 20 to move leftward, so that the sealing baffle 13 loses its resistance, and the sealing baffle 13 moves downward under the action of the pushing component, thereby playing a role in closing the protective frame 2, achieving the effect of blocking the internal and external air circulation, and thus minimizing the erosion of the conductive rod of the power plug 3 by external humid air and realizing the protection of the power plug 3.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power supply protection device for an electric spark wire cutting machine, comprising a body (1), characterized in that: A protection adjustment mechanism is provided inside the machine body (1); The protection adjustment mechanism comprises a protection frame (2) fixedly connected to the outside of the machine body (1); a focusing roller (5) is rotatably connected inside the machine body (1); a fixing sleeve (6) is fixedly connected to the front of the focusing roller (5); a focusing motor (7) is fixedly connected inside the machine body (1); a driving wheel (8) is arranged inside the focusing motor (7); and a connecting component for clamping the driving wheel (8) is arranged inside the fixing sleeve (6); The interior of the bundling roller (5) is fixedly connected to a power cord (4); the interior of the protective frame (2) is movably connected to a power plug (3) fixedly connected to the power cord (4); the interior of the protective frame (2) is movably connected to a sealing baffle (13); a push assembly for pushing the sealing baffle (13) is provided at the top of the protective frame (2); and a limit assembly for limiting the movement of the sealing baffle (13) is provided inside the protective frame (2).

2. The power supply protection device for electric spark wire cutting machine according to claim 1, characterized in that: The connection assembly comprises an electric push rod (9) fixedly connected to the interior of a fixed sleeve (6), an output end of the electric push rod (9) is fixedly connected to a positioning block (10), and a plurality of positioning grooves (11) are provided on the outer side of the driving wheel (8).

3. The power supply protection device for electric spark wire cutting machine according to claim 1, characterized in that: The body (1) is fixedly connected inside with guide rollers (12) located at the upper and lower sides of the power cord (4), and the protection frame (2) is fixedly connected inside with a protection sleeve (21) that is slidably matched with the power cord (4).

4. The power supply protection device for electric spark wire cutting machine according to claim 1, characterized in that: The push assembly comprises a movable plate (14) fixedly connected to the top of the sealing baffle (13); a fixed frame (15) is fixedly connected to the top of the body (1); a guide rod (16) slidably connected to the movable plate (14) is fixedly connected inside the fixed frame (15); and a compression spring (17) fixedly connected to the fixed frame (15) and the movable plate (14) is sleeved on the outer side of the guide rod (16).

5. The power supply protection device for electric spark wire cutting machine according to claim 1, characterized in that: The limiting assembly comprises a movable stop block (18) movably connected to the interior of the protective frame (2); a compression spring (19) is fixedly connected to the interior of the protective frame (2); the other end of the compression spring (19) is fixedly connected to the left side of the movable stop block (18); and the right side of the movable stop block (18) is fixedly connected to a limiting plate (20) slidably connected to the protective frame (2).

6. The power supply protection device for electric spark wire cutting machine according to claim 1, characterized in that: The inner walls on both the upper and lower sides of the protection frame (2) are provided with arc-shaped surfaces, and a rotating joint (22) is installed at one end of the focusing roller (5) away from the fixed sleeve (6).

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