Wire electrode supply device and linear cutting machine tool

Abstract

The utility model belongs to the technical field of linear cutting, and discloses an electrode wire feeding device and a linear cutting machine tool. The linear cutting machine tool comprises the electrode wire supply device, the electrode wire supply device comprises a rack, a driving assembly and a wire coil, the driving assembly is arranged on the rack, a wire is wound on the wire coil, the wire coil can bear the weight of the wire of 20-30 kg, the wire coil is arranged at the output end of the driving assembly, and the driving assembly can drive the wire coil to rotate so as to unwind the wire. By arranging the wire coil with the ultra-large capacity, the frequency of wire coil replacement is reduced, the operation of wire coil replacement in the machining process is reduced, the machining efficiency of wire cutting is improved, meanwhile, the machining continuity of wire cutting is guaranteed, and the influence on the machining precision in the wire replacement process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting, in particular to an electrode wire supply device and a wire cutting machine tool. Background Art

[0002] Slow wire cutting is a machining method that uses a continuously moving metal wire as an electrode wire. By means of pulsed electric spark discharge between the electrode wire and the workpiece, high temperature is generated to melt or vaporize the metal, forming a cutting seam, thereby cutting out parts. During cutting, it is necessary to use an electrode wire supply device to supply and convey the electrode wire.

[0003] Wire cutting wire coils are one-time consumables, and new electrode wire materials need to be continuously provided during the machining process to complete the cutting work. Currently, most wire coils commonly found in the market are small-capacity wire coils, and the weight of the wire that can be carried on the wire coil is mostly 5 kg, 10 kg or 15 kg, and larger-capacity wire coils are rarely seen. During the process of continuous cutting work, such small-capacity wire coils are prone to running out of wire, resulting in the need to frequently replace the wire coil during machining. When replacing the wire coil, the operator needs to stop the machine, which affects the efficiency and benefit of wire cutting production. Moreover, the operator needs to master the wire feeding method proficiently. For inexperienced operators, replacing the wire coil requires continuous attempts, which not only affects the efficiency of wire cutting production but also may affect the machining accuracy.

[0004] Therefore, there is an urgent need to provide an electrode wire supply device and a wire cutting machine tool to solve the above problems. Summary of the Utility Model

[0005] One object of the utility model is to provide an electrode wire supply device that does not require frequent replacement of the wire coil, improving the efficiency and benefit of wire cutting production.

[0006] Another object of the utility model is to provide a wire cutting machine tool that does not require frequent replacement of the wire coil, improving the efficiency and benefit of wire cutting production.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The electrode wire supply device includes:

[0009] A frame;

[0010] A driving assembly arranged on the frame; and

[0011] A wire coil on which a wire is wound, and the weight of the wire that the wire coil can carry is 20 - 30 kg. The wire coil is arranged at the output end of the driving assembly, and the driving assembly can drive the wire coil to rotate to unwind the wire.

[0012] As an alternative, the driving assembly includes:

[0013] A motor, fixed on the frame;

[0014] A transmission component, connected to the output end of the motor;

[0015] A driving wheel, connected to the output end of the transmission component;

[0016] A driven driving wheel, arranged at a horizontal interval with the driving wheel, the wire coil is placed on the driven driving wheel and the driving wheel, and is respectively externally tangent to the driven driving wheel and the driving wheel.

[0017] As an alternative, the transmission component includes:

[0018] A driving gear, connected to the output shaft of the motor;

[0019] A first driven gear, rotatably arranged on the frame and meshed with the driving gear;

[0020] A second driven gear, circumferentially and fixedly sleeved on the axle of the driving wheel and meshed with the first driven gear.

[0021] As an alternative, the wire coil includes a winding part and stop parts respectively arranged at both axial ends of the winding part. The winding part is used for winding the wire. The stop parts have a radial dimension larger than that of the winding part. Both the driving wheel and the driven driving wheel are abutted against the stop parts.

[0022] As an alternative, it further includes a connecting frame and a pressing wheel. The connecting frame is arranged on the frame and above the wire coil. A connecting shaft is arranged on the connecting frame. The pressing wheel is rotatably arranged on the connecting shaft and presses against the wire coil.

[0023] As an alternative, the connecting frame is rotatably arranged on the frame through a rotating shaft.

[0024] As an alternative, a hook is arranged on the frame. The hook is above the connecting shaft and is used for hooking the connecting shaft.

[0025] As an alternative, the frame is configured to be placed on the ground.

[0026] As an alternative, a plurality of universal wheels are arranged at the bottom of the frame.

[0027] The wire cutting machine tool includes a machine tool main body and the above-mentioned electrode wire supply device. The electrode wire supply device is located beside the machine tool main body and is used to supply the electrode wire to the machine tool main body.

[0028] Advantages of the present utility model:

[0029] The present utility model provides an electrode wire supply device. Among them, the weight of the wire that the wire reel can carry is 20 - 30 kg. By setting a wire reel with an ultra-large capacity, the frequency of wire reel replacement is reduced. The wire on this wire reel can be continuously processed for about one week, reducing the operation of replacing the wire reel during the processing, improving the processing efficiency of wire cutting, ensuring the processing continuity of wire cutting at the same time, and reducing the influence on the processing accuracy during the wire replacement process.

[0030] The present utility model also provides a wire cutting machine tool. By setting the above-mentioned electrode wire supply device, the operation of replacing the wire reel during the processing can be reduced, the processing efficiency of wire cutting can be improved, the processing continuity of wire cutting is ensured at the same time, and the influence on the processing accuracy during the wire replacement process is reduced. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the wire cutting machine tool provided by the present utility model;

[0032] Figure 2 is a schematic structural diagram of the electrode wire supply device provided by the present utility model; Figure 1 ;

[0033] Figure 3 is a schematic structural diagram of the electrode wire supply device provided by the present utility model; Figure 2 ;

[0034] In the figure:

[0035] 100, electrode wire supply device; 200, machine tool main body; 300, electrode wire;

[0036] 10, frame; 11, housing; 12, hook; 13, universal wheel;

[0037] 20, drive assembly; 21, motor; 22, transmission component; 221, driving gear; 222, first driven gear; 223, second driven gear; 23, driving drive wheel; 24, driven drive wheel;

[0038] 30, wire reel; 31, winding part; 32, stop part;

[0039] 40, connecting frame; 41, connecting shaft; 42, rotating shaft;

[0040] 50, pressing wheel;

[0041] 60, guide wheel. Detailed implementation manners

[0042] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the accompanying drawings.

[0043] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0044] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0045] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0046] This embodiment provides an electrode wire supply device 100 and a wire cutting machine tool. Specifically, as Figure 1As shown in the figure, the wire cutting machine tool includes a machine tool main body 200 and the above-mentioned wire electrode supply device 100. The wire electrode supply device 100 is located beside the machine tool main body 200 and is used to supply the wire electrode 300 to the machine tool main body 200. The machine tool main body 200 relies on the pulsed electric spark discharge between the wire electrode 300 and the workpiece to generate high temperature to melt or vaporize the metal, forming a cutting seam, thereby cutting out parts with the required shape. Among them, the machine tool main body 200 of the wire cutting machine tool belongs to the prior art and will not be elaborated here.

[0047] Specifically, as Figure 2 shown, the wire electrode supply device 100 includes a frame 10, a driving assembly 20, and a wire reel 30. The driving assembly 20 is arranged on the frame 10. A wire material is wound on the wire reel 30, and the weight of the wire material that the wire reel 30 can carry is 20 - 30 kg. The wire reel 30 is arranged at the output end of the driving assembly 20. The driving assembly 20 can drive the wire reel 30 to rotate to unwind the wire material, and the wire material unwound from the wire reel 30 is supplied as the wire electrode 300 to the machine tool main body 200.

[0048] Among them, the wire reel 30 is a one-time consumable. When the wire material on it is used up, a new wire reel 30 needs to be replaced to continuously provide a new wire electrode 300 for the machine tool main body 200 during the processing to complete the cutting work. Currently, most of the common wire reels 30 on the market are small-capacity wire reels, and the weight of the wire material that the wire reel 30 can carry is mostly 5 kg, 10 kg, or 15 kg, and larger-capacity wire reels 30 rarely appear. During the continuous cutting work process, such small-capacity wire reels 30 are prone to the problem of running out of wire material, resulting in the need to frequently replace the wire reel 30 during the processing. When replacing the wire reel 30, the operator needs to stop the machine for operation, which affects the efficiency and benefit of wire cutting production. And the operator needs to master the wire feeding method proficiently. For inexperienced operators, replacing the wire reel 30 requires continuous attempts, which not only affects the efficiency of wire cutting production but also may affect the processing accuracy.

[0049] However, for the wire electrode supply device 100 provided in this embodiment, the weight of the wire material that the wire reel 30 can carry is 20 - 30 kg, and the maximum capacity can reach 30 kg. By setting the extra-large-capacity wire reel 30, the replacement frequency of the wire reel 30 is reduced. The wire material on this wire reel 30 can be continuously processed for about one week, reducing the operation of replacing the wire reel 30 during the processing, improving the processing efficiency of wire cutting, and at the same time ensuring the processing continuity of wire cutting and reducing the impact on the processing accuracy during the wire replacement process.

[0050] In this embodiment, as Figure 2 and Figure 3As shown, the driving component 20 includes a motor 21, a transmission component 22, a driving driving wheel 23 and a driven driving wheel 24. The motor 21 is fixed on the frame 10. The transmission component 22 is connected to the output end of the motor 21. The driving driving wheel 23 is connected to the output end of the transmission component 22. The driven driving wheel 24 is arranged at an interval from the driving driving wheel 23 in the horizontal direction. The wire coil 30 is placed on the driven driving wheel 24 and the driving driving wheel 23 and is externally tangent to the driven driving wheel 24 and the driving driving wheel 23 respectively. The driving driving wheel 23 and the driven driving wheel 24 support the wire coil 30. When the output shaft of the motor 21 rotates, it drives the transmission component 22 to rotate. The transmission component 22 drives the driving driving wheel 23 to rotate. The driving driving wheel 23 and the driven driving wheel 24 drive the wire coil 30 to rotate through the friction force between the contact surfaces, so as to realize the unwinding of the wire material.

[0051] Compared with the prior art in which the motor directly drives the wire coil 30 to rotate by a belt or a gear, the present application adopts friction transmission, which improves the noise generated in the transmission process to a certain extent, makes the wire coil 30 operate more smoothly, is simpler and more intuitive in structure, and has a relatively low cost, saving the manufacturing cost.

[0052] In this embodiment, as Figure 2 and Figure 3 shown, the transmission component 22 specifically includes a driving gear 221, a first driven gear 222 and a second driven gear 223. The driving gear 221 is connected to the output shaft of the motor 21. The first driven gear 222 is rotatably arranged on the frame 10 and meshes with the driving gear 221. Specifically, a housing 11 is provided on the frame 10. The housing 11 covers the motor 21 to play a protective role. The first driven gear 222 is rotatably arranged on the housing 11. The second driven gear 223 can be circumferentially fixed on the axle of the driving driving wheel 23 by a key connection and meshes with the first driven gear 222. When the output shaft of the motor 21 rotates, it directly drives the driving gear 221 to rotate. The driving gear 221 drives the first driven gear 222 to rotate. The first driven gear 222 drives the second driven gear 223 to rotate. The second driven gear 223 drives the driving driving wheel 23 to rotate. The driving driving wheel 23 and the driven driving wheel 24 drive the wire coil 30 to rotate through the friction force between the contact surfaces, so as to realize the unwinding of the wire material. The above-mentioned gear transmission method has high transmission efficiency, high precision, stable and reliable operation, compact structure and saves space.

[0053] Furthermore, as Figure 2As shown, the wire reel 30 includes a winding portion 31 and stoppers 32 respectively arranged at both axial ends of the winding portion 31. The winding portion 31 is used to wind the wire, and the stoppers 32 have a radial dimension greater than that of the winding portion 31. The active driving wheel 23 and the driven driving wheel 24 are both in contact with the stoppers 32. The winding portion 31 is cylindrical, and the stoppers 32 are disc-shaped, and the diameter is greater than that of the winding portion 31. In this way, when the wire is wound on the winding portion 31, the axial movement of the wire can be limited by the stoppers 32 at both ends, which plays a role in positioning the wire. In addition, the active driving wheel 23 and the driven driving wheel 24 drive the wire reel 30 to rotate by contacting with the stoppers 32, so as to avoid the active driving wheel 23 and the driven driving wheel 24 contacting with the winding portion 31 and affecting the unwinding of the wire.

[0054] Furthermore, if Figure 2 and Figure 3 As shown, the electrode wire supply device 100 further includes a connecting frame 40 and a clamping wheel 50. The connecting frame 40 is arranged on the frame 10 and is located on the upper side of the wire coil 30. The connecting frame 40 is provided with a connecting shaft 41. The clamping wheel 50 is rotatably arranged on the connecting shaft 41 and is pressed against the stopper 32 of the wire coil 30. During the rotation of the wire coil 30, the clamping wheel 50 rotates with the wire coil 30, and the clamping wheel 50 is pressed against the stopper 32, which limits the radial runout of the wire coil 30, avoids the wire coil 30 from moving up and down during the rotation, and ensures the stability of the operation of the wire coil 30.

[0055] like Figure 2 and Figure 3 As shown, the connecting frame 40 is rotatably disposed on the frame 10 via a rotating shaft 42. In an optional embodiment, the rotating shaft 42 is passed through the connecting frame 40, and the axial ends of the rotating shaft 42 are fixed on the frame 10, and the connecting frame 40 can rotate relative to the rotating shaft 42. In another optional embodiment, the rotating shaft 42 is passed through and fixed on the connecting frame 40, and the axial ends of the rotating shaft 42 are rotatably disposed on the frame 10, and the connecting frame 40 can drive the rotating shaft 42 to rotate relative to the frame 10. By setting the connecting frame 40 to be rotatable, when the wire reel 30 needs to be replaced, the connecting frame 40 can directly drive the clamping wheel 50 to be lifted around the axis of the rotating shaft 42, so as to facilitate the replacement of the wire reel 30.

[0056] Furthermore, if Figure 2 and Figure 3 As shown, a hook 12 is provided on the frame 10, and the hook 12 is located above the connecting shaft 41, and the hook 12 is used to hook the connecting shaft 41. When the connecting frame 40 is rotated to lift the pinch wheel 50, the connecting shaft 41 can be directly hooked on the hook 12, so as to avoid the pinch wheel 50 from descending and causing harm to the operator during the process of replacing the wire reel 30.

[0057] Furthermore, if Figure 2As shown, a plurality of guide wheels 60 are rotatably arranged on the frame 10. The plurality of guide wheels 60 are located above the wire outlet side of the wire coil 30. After the wire outlet, the electrode wire 300 sequentially bypasses the plurality of guide wheels 60. The guide wheels 60 tension and guide the electrode wire 300, enabling the electrode wire 300 to follow a preset path for wire routing.

[0058] In this embodiment, as Figure 1 shown, the frame 10 is configured to be placed on the ground. It can be understood that during the process of replacing the wire coil 30, the operator needs to pick up the wire coil 30 for replacement. If the wire coil 30 is set too high, the operator is at risk of being injured when replacing the wire coil 30. Therefore, by placing the frame 10 on the ground, the wire coil 30 is installed closer to the ground, reducing the height of the wire coil 30, reducing the working intensity of the operator in carrying the wire coil 30, and reducing the risk of the operator being injured.

[0059] In an alternative embodiment, as Figure 2 and Figure 3 shown, a plurality of universal wheels 13 are provided at the bottom of the frame 10, and the universal wheels 13 are provided at least at the four corner positions of the bottom of the frame 10. The universal wheels 13 can improve the mobility of the electrode wire supply device 100, facilitating its movement and flexible turning, and achieving more efficient transfer.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Electrode wire supply device, characterized in that, Comprising: A frame (10); A driving assembly (20), arranged on the frame (10); And A wire reel (30) around which a wire is wound, and the weight of the wire that the wire reel (30) can carry is 20 - 30 kg. The wire reel (30) is arranged at the output end of the driving assembly (20), and the driving assembly (20) can drive the wire reel (30) to rotate to unwind the wire.

2. The wire electrode supply device according to claim 1, characterized in that, The driving assembly (20) includes: A motor (21), fixed on the frame (10); A transmission component (22), connected to the output end of the motor (21); A driving wheel (23), connected to the output end of the transmission component (22); A driven driving wheel (24), arranged at an interval with the driving wheel (23) in the horizontal direction. The wire reel (30) is placed on the driven driving wheel (24) and the driving wheel (23) and is respectively externally tangent to the driven driving wheel (24) and the driving wheel (23).

3. The electrode wire supply device according to claim 2, wherein the transmission component (22) includes: A driving gear (221), connected to the output shaft of the motor (21); A first driven gear (222), rotatably arranged on the frame (10) and meshing with the driving gear (221); A second driven gear (223), circumferentially fixedly sleeved on the axle of the driving wheel (23) and meshing with the first driven gear (222).

4. The electrode wire supply device according to claim 2, wherein the wire reel (30) includes a winding part (31) and stop parts (32) respectively arranged at both axial ends of the winding part (31). The winding part (31) is used for winding the wire, the stop parts (32) have a radial dimension larger than that of the winding part (31), and both the driving wheel (23) and the driven driving wheel (24) are in contact with the stop parts (32).

5. The electrode wire supply device according to any one of claims 1 - 4, further comprising a connecting frame (40) and a pressing wheel (50). The connecting frame (40) is arranged on the frame (10) and is located above the wire reel (30). A connecting shaft (41) is arranged on the connecting frame (40), and the pressing wheel (50) is rotatably arranged on the connecting shaft (41) and presses on the wire reel (30).

6. The wire electrode supply device according to claim 5, characterized in that, The connecting frame (40) is rotatably arranged on the frame (10) through a rotating shaft (42).

7. The wire electrode supply device according to claim 6, characterized in that, A hook (12) is arranged on the frame (10), the hook (12) is located above the connecting shaft (41), and the hook (12) is used for hooking the connecting shaft (41).

8. The wire electrode supply device according to any one of claims 1 to 4, characterized in that, The frame (10) is configured to be placed on the ground.

9. The wire electrode supply device according to any one of claims 1-4, characterized in that, A plurality of universal wheels (13) are arranged at the bottom of the frame (10).

10. Wire cutting machine tool, characterized in that, Comprising a machine tool main body (200) and the electrode wire supply device according to any one of claims 1 - 9. The electrode wire supply device is located beside the machine tool main body (200) and is used to supply electrode wire (300) to the machine tool main body (200).

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