Wire feeding and moving device for middle-speed wire cutting

Abstract

The utility model relates to wire cutting equipment technical field discloses middle wire cutting upper wire arm threading silk silk feeding mobile device, including the processing platform and mounting panel, the top fixedly connected with support frame of processing platform, the outer wall of mounting panel is provided with the engagement observation mechanism, the bottom of support frame is provided with multidirectional adjusting mechanism, multidirectional adjusting mechanism is used for adjusting in horizontal direction, the left side of top of processing platform is provided with the wire feeding assembly, the engagement observation mechanism includes the limiting plate, in the utility model, through servo motor in drive assembly, drive column rotation is driven, drive gear engages driven gear, two wire feeding wheels cooperate to realize the clamping and conveying of electrode wire, adjusting assembly drives the inclined hollow strip to slide to adjust the position of driven gear, adapts to different diameter electrode wire conveying demand, and the switching of automatic and manual adjustment molybdenum wire, L-shaped clamp forms observation channel, and further is used for observing electrode wire movement situation.

Description

Technical Field

[0001] This utility model relates to the technical field of wire cutting equipment, and in particular to a wire feeding and moving device for the upper wire arm of a medium-speed wire cutting machine. Background Technology

[0002] The wire feeding and moving device of the upper wire arm in medium-speed wire EDM is a key component of the machine tool. Its main function is to realize the automatic wire feeding and moving operation of the electrode wire, provide a continuous and stable supply of electrode wire for wire EDM, ensure the smooth progress of wire EDM, and serve as an important bridge connecting the electrode wire supply and cutting process. It has a direct impact on cutting accuracy and processing efficiency.

[0003] Early wire feeding and moving devices for upper wire arms had relatively simple structures, consisting of basic mechanical transmission components, a simple wire clamping mechanism, and a manual or simple drive device. During use, these devices exhibited numerous problems, such as low mechanical transmission precision leading to unstable wire feeding and affecting cutting accuracy, and poor reliability of the wire clamping mechanism resulting in wire detachment. To address these issues, existing upper wire feeding and moving devices employ high-precision linear guides and ball screws to improve transmission accuracy and ensure smoother wire feeding. Simultaneously, the wire clamping mechanism has been optimized to enhance clamping reliability and prevent wire detachment. However, existing devices still have shortcomings. Because the molybdenum wire is threaded and fed within a closed or semi-closed structure during operation, operators cannot visually observe the specific conditions of the molybdenum wire during threading and feeding, such as whether the wire is knotted or its degree of wear. This makes it difficult for operators to detect abnormalities in the molybdenum wire in a timely manner, affecting subsequent cutting quality and even leading to equipment failure. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a wire feeding and moving device for the upper wire arm of a medium-speed wire EDM, which aims to improve the problem of difficulty in timely detection of abnormal conditions of molybdenum wire in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wire feeding and moving device for a wire EDM upper arm, comprising a processing table and a mounting plate, wherein a support frame is fixedly connected to the top of the processing table, a locking observation mechanism is provided on the outer wall of the mounting plate, a multi-directional adjustment mechanism is provided at the bottom of the support frame, the multi-directional adjustment mechanism is used for horizontal adjustment, a wire feeding assembly is provided on the top left side of the processing table, and a tension control assembly is provided on the left side of the support frame;

[0006] The engagement observation mechanism includes a limiting plate, the rear side of which is fixedly connected to the front side of the outer wall of the mounting plate. A hollow limiting block is fixedly connected to the front side of the limiting plate. L-shaped pressure plates are fixedly connected to both the front and rear sides of the right side of the hollow limiting block. A hollow replacement plate is provided in the middle of the right side of the hollow limiting block. An inlet cylinder is threaded to the top of the inner wall of the hollow replacement plate, and an outlet cylinder is threaded to the bottom of the inner wall of the hollow replacement plate. A driving component is provided on the left side of the hollow limiting block, and an adjustment component is provided on the front side of the hollow limiting block.

[0007] As a further description of the above technical solution:

[0008] The multi-directional adjustment mechanism includes a movable plate. The outer wall of the movable plate is disposed at the bottom end of the support frame. Slide rails are fixedly connected to the upper and lower sides of the outer wall of the movable plate. A concave block is slidably connected to the outer wall of the slide rail. A fixing block is fixedly connected to the outer wall of the concave block. Stepper motors are fixedly connected to both sides of the outer wall of the movable plate. The output end of the stepper motor passes through the outer wall of the movable plate and is fixedly connected to a lead screw. The outer wall of the lead screw is threadedly connected to the inner wall of the corresponding fixing block. A fixing plate is fixedly connected to the top of the top concave block. The top of the fixing plate is fixedly connected to the bottom end of the support frame. An L-shaped connecting plate is fixedly connected to the bottom end of the bottom concave block. The front side of the L-shaped connecting plate is fixedly connected to the rear side of the mounting plate.

[0009] As a further description of the above technical solution:

[0010] The drive assembly includes a servo motor. The outer wall of the servo motor is fixedly connected to the front left end of the limiting plate. The output end of the servo motor is fixedly connected to a drive column. A drive gear is fixedly connected to the left side of the outer wall of the drive column. A wire feeding wheel one is fixedly connected to the right side of the outer wall of the drive column, which passes through the left side of the hollow limiting block. A driven gear is meshed with the outer wall of the drive gear. The right end of the driven gear passes through the left side of the hollow limiting block and is fixedly connected to a wire feeding wheel two.

[0011] As a further description of the above technical solution:

[0012] The adjustment assembly includes a cylinder, the outer wall of which is fixedly connected to the front side of the hollow limiting block. One end of the cylinder is fixedly connected to an inclined block. A limiting notch is provided on the front side of the hollow limiting block. An inclined hollow strip is slidably connected to the inner wall of the limiting notch. The inner wall of the inclined hollow strip engages with the outer wall of the driven gear.

[0013] As a further description of the above technical solution:

[0014] The wire feeding assembly includes a U-shaped plate. The bottom end of the U-shaped plate is fixedly connected to the top left side of the processing table. A DC motor is fixedly connected to the rear side of the U-shaped plate. The output end of the DC motor passes through the rear side of the U-shaped plate and is fixedly connected to a rotating column. A base is fixedly connected to the bottom left side of the inner wall of the U-shaped plate. A cylinder is fixedly connected to the top of the base. A rotating bar is rotatably connected to the inner wall of the base. An elastic clamp is rotatably connected to the outer wall of the rotating column.

[0015] As a further description of the above technical solution:

[0016] The tension control assembly includes a hollow plate. The outer wall of the hollow plate is fixedly connected to the left side of the support frame. A counterweight is slidably connected to the top of the hollow plate. A sliding plate is slidably connected to the rear side of the hollow plate. An electric telescopic rod is fixedly connected to the rear right side of the hollow plate. A buffer spring is fixedly connected to the bottom of both the counterweight and the sliding plate. The bottom ends of both buffer springs are fixedly connected to the outer wall of the hollow plate. The bottom end of the counterweight passes through the top of the hollow plate and is fixedly connected to the top of the sliding plate. Multiple pulleys are rotatably connected to the front side of the hollow plate. A movable wheel is rotatably connected to the front side of the sliding plate.

[0017] As a further description of the above technical solution:

[0018] The left side of the outer wall of the hollow replacement plate engages with the right side of the outer wall of the hollow limiting block, and the front and rear sides of the right side of the hollow replacement plate engage with the inner walls of the corresponding L-shaped pressure plates, respectively.

[0019] As a further description of the above technical solution:

[0020] The L-shaped pressure plate and the hollow limiting block are connected by bolts, and the outer wall of the inclined block engages with the inner wall of the limiting recess.

[0021] As a further description of the above technical solution:

[0022] The outer walls of the first and second wire feeding wheels are located on the front and rear sides of the inner wall of the hollow replacement plate, and the centers of the inlet and outlet wire tubes are on the same horizontal plane.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the servo motor in the drive assembly drives the drive column to rotate, causing the drive gear and the wire feeding wheel to rotate synchronously. The drive gear meshes with the driven gear, causing the wire feeding wheel to rotate in the opposite direction. The two wire feeding wheels cooperate to clamp and transport the electrode wire. When the cylinder of the adjustment assembly extends and retracts, it pushes the tilting block to move within the limiting recess, causing the tilting hollow strip to slide to adjust the position of the driven gear and change the distance between the two wire feeding wheels. This adapts to the needs of transporting electrode wires of different diameters and allows for automatic and manual adjustment of the molybdenum wire. In addition, the two L-shaped pressure plates form an observation channel on their adjacent sides, which is then used to observe the movement of the electrode wire.

[0025] 2. In this utility model, after the stepper motors on both sides of the moving plate are started, the lead screw is driven to rotate, so that the threaded fixed block drives the concave block to slide along the slide rail. The top concave block is connected to the L-shaped plate through the fixed plate, and the bottom concave block drives the mounting plate to move through the L-shaped connecting plate, thereby realizing the precise adjustment of the electrode wire in the horizontal direction. Attached Figure Description

[0026] Figure 1 This is a perspective view of the wire feeding and moving device for the upper wire cutting arm of the medium-speed wire EDM proposed in this utility model.

[0027] Figure 2 This is a front view of the wire feeding and moving device for the upper wire cutting arm of the medium-speed wire EDM proposed in this utility model;

[0028] Figure 3 This is a rear view of the wire feeding and moving device for the upper wire cutting arm of the medium-speed wire EDM proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the multi-directional adjustment mechanism of the wire feeding and moving device for the upper wire cutting arm of the medium-speed wire EDM proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the locking and observation mechanism of the wire feeding and moving device for the upper wire cutting arm of the medium-speed wire EDM proposed in this utility model.

[0031] Figure 6 This is a schematic diagram of the wire feeding assembly of the wire feeding and moving device for the upper wire arm of the wire cutting machine proposed in this utility model.

[0032] Legend:

[0033] 1. Processing table; 2. Engaging observation mechanism; 201. Limiting plate; 202. Hollow limiting block; 203. Hollow replacement plate; 204. L-shaped pressure plate; 205. Inlet tube; 206. Outlet tube; 207. Drive assembly; 2071. Servo motor; 2072. Drive column; 2073. Drive gear; 2074. Wire feed roller one; 2075. Driven gear; 2076. Wire feed roller two; 208. Adjustment assembly; 2081. Cylinder one; 2082. Inclined block; 2083. Inclined hollow strip; 2084. Limiting notch; 3. Multi-directional adjustment mechanism; 301. Moving plate 302. Stepper motor; 303. Slide rail; 304. Lead screw; 305. Concave block; 306. Fixing block; 307. L-shaped connecting plate; 308. Fixing plate; 4. Support frame; 5. Mounting plate; 6. Wire feeding assembly; 601. U-shaped plate; 602. DC motor; 603. Rotating column; 604. Base; 605. Cylinder II; 606. Rotating bar; 607. Elastic clamping plate; 7. Tension control assembly; 701. Hollow plate; 702. Counterweight; 703. Buffer spring; 704. Sliding plate; 705. Electric telescopic rod; 706. Pulley; 707. Moving wheel. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 , Figure 2 and Figure 5 The present invention provides an embodiment of a wire cutting upper arm wire feeding and moving device, including a processing table 1 and a mounting plate 5. The processing table 1 serves as the overall foundation to support all components, while the mounting plate 5 is used to fix the engagement and observation mechanism 2. A support frame 4 is fixedly connected to the top of the processing table 1, and the engagement and observation mechanism 2 is provided on the outer wall of the mounting plate 5. A multi-directional adjustment mechanism 3 is provided at the bottom of the support frame 4, which is used for horizontal adjustment. A wire feeding assembly 6 is provided on the top left side of the processing table 1, and a tension control assembly 7 is provided on the left side of the support frame 4.

[0036] The locking observation mechanism 2 includes a limiting plate 201. The rear side of the limiting plate 201 is fixedly connected to the front side of the outer wall of the mounting plate 5. A hollow limiting block 202 is fixedly connected to the front side of the limiting plate 201. An L-shaped pressure plate 204 is fixedly connected to both the front and rear sides of the right side of the hollow limiting block 202. A hollow replacement plate 203 is provided in the middle of the right side of the hollow limiting block 202. An inlet cylinder 205 is threadedly connected to the top of the inner wall of the hollow replacement plate 203. An outlet cylinder 206 is threadedly connected to the bottom of the inner wall of the hollow replacement plate 203. A drive assembly 207 is provided on the left side of the hollow limiting block 202. An adjustment assembly 208 is provided on the front side of the hollow limiting block 202.

[0037] The drive assembly 207 includes a servo motor 2071. The outer wall of the servo motor 2071 is fixedly connected to the front left end of the limiting plate 201. The output end of the servo motor 2071 is fixedly connected to a drive column 2072. A drive gear 2073 is fixedly connected to the left side of the outer wall of the drive column 2072. A wire feeding wheel 2074 is fixedly connected to the right side of the outer wall of the drive column 2072, penetrating the left side of the hollow limiting block 202. A driven gear 2075 is meshed with the outer wall of the drive gear 2073. The right end of the driven gear 2075 penetrates the left side of the hollow limiting block 202 and is fixedly connected to a wire feeding wheel 2076. When the servo motor 2071 of the drive assembly 207 operates, it drives the drive column 2072 to rotate, causing the drive gear 2073 and the wire feeding wheel 2074 to rotate synchronously. The drive gear 2073 meshes with the driven gear 2075, causing the wire feeding wheel 2076 to rotate in the opposite direction. The two wire feeding wheels cooperate to clamp and feed the electrode wire. The adjustment component 208 includes a cylinder 2081, the outer wall of which is fixedly connected to the front side of the hollow limiting block 202. One end of the cylinder 2081 is fixedly connected to an inclined block 2082. A limiting recess 2084 is provided on the front side of the hollow limiting block 202. An inclined hollow strip 2083 is slidably connected to the inner wall of the limiting recess 2084. The inner wall of the inclined hollow strip 2083 engages with the outer wall of the driven gear 2075. When the cylinder 2081 of the adjustment component 208 extends or retracts, it pushes the inclined block 2082 to move within the limiting recess 2084, causing the inclined hollow strip 2083 to slide to adjust the position of the driven gear 2075, thereby changing the distance between the two wire feeding wheels to adapt to the feeding requirements of electrode wires of different diameters. It can also disengage the driven gear 2075 from the drive gear 2073, so that the device can be switched from automatic wire feeding to manual wire feeding, and can be switched when manual adjustment is required.

[0038] Specifically, the processing table 1 serves as the overall foundation supporting all components, the support frame 4 provides installation support for the multi-directional adjustment mechanism 3, the mounting plate 5 is used to fix the engagement observation mechanism 2, the limiting plate 201 fixes the overall structure, the hollow limiting block 202 forms the wire feeding channel, and the L-shaped pressure plate 204 on its right is used to fix the hollow replacement plate 203. The hollow replacement plate 203 guides the electrode wire in and out through the inlet tube 205 and the outlet tube 206, and can be easily disassembled and replaced to adapt to different specifications of electrode wire. When started, the servo motor 2071 of the drive assembly 207 operates, driving the drive column 2072 to rotate, so that the drive gear 2073 and the wire feeding wheel 2074 rotate synchronously, and the drive gear 2073 meshes with the driven gear. 2075 causes the second feeding wheel 2076 to rotate in the opposite direction. The two feeding wheels cooperate to clamp and transport the electrode wire. When the cylinder 2081 of the adjusting component 208 extends or retracts, it pushes the tilting block 2082 to move within the limiting recess 2084, causing the tilting hollow bar 2083 to slide to adjust the position of the driven gear 2075, thereby changing the distance between the two feeding wheels to adapt to the transport requirements of electrode wires of different diameters. At the same time, it causes the driven gear 2075 to disengage from the drive gear 2073, so that the device changes from automatic wire feeding to manual wire feeding. This allows for switching when manual adjustment is required. An observation channel is formed on the adjacent side of the two L-shaped pressure plates 204 to observe the movement of the electrode wire.

[0039] Reference Figure 1 , Figure 2 and Figure 4 The multi-directional adjustment mechanism 3 includes a movable plate 301. The outer wall of the movable plate 301 is located at the bottom of the support frame 4. Slide rails 303 are fixedly connected to both the upper and lower sides of the outer wall of the movable plate 301. A concave block 305 is slidably connected to the outer wall of the slide rail 303. A fixing block 306 is fixedly connected to the outer wall of the concave block 305, causing the threaded fixing block 306 to drive the concave block 305 to slide along the slide rail 303. Stepper motors 302 are fixedly connected to both sides of the outer wall of the movable plate 301. The output end of the stepper motor 302 passes through the outer wall of the movable plate 301 and is fixedly connected to a lead screw 304. The outer wall of the plate is threadedly connected to the inner wall of the corresponding fixed block 306. After the stepper motors 302 on both sides of the moving plate 301 are started, the lead screw 304 is driven to rotate. The top of the top concave block 305 is fixedly connected to the top of the fixed plate 308. The top of the fixed plate 308 is fixedly connected to the bottom of the support frame 4. The top concave block 305 is connected to the support frame 4 through the fixed plate 308. The bottom of the bottom concave block 305 is fixedly connected to the bottom of the L-shaped connecting plate 307. The front side of the L-shaped connecting plate 307 is fixedly connected to the rear side of the mounting plate 5. The bottom concave block 305 drives the mounting plate 5 to move through the L-shaped connecting plate 307.

[0040] Specifically, when it is necessary to adjust the working position of the electrode wire, after the stepper motors 302 on both sides of the moving plate 301 are started, they drive the lead screw 304 to rotate, causing the threaded fixed block 306 to drive the concave block 305 to slide along the slide rail 303; the top concave block 305 is connected to the support frame 4 through the fixed plate 308, and the bottom concave block 305 drives the mounting plate 5 to move through the L-shaped connecting plate 307, so as to achieve precise adjustment in the horizontal direction.

[0041] Reference Figure 1 , Figure 3 and Figure 6 The wire feeding assembly 6 includes a U-shaped plate 601. The bottom end of the U-shaped plate 601 is fixedly connected to the top left side of the processing table 1. A DC motor 602 is fixedly connected to the rear side of the U-shaped plate 601. The output end of the DC motor 602 passes through the rear side of the U-shaped plate 601 and is fixedly connected to a rotating column 603. A base 604 is fixedly connected to the bottom left side of the inner wall of the U-shaped plate 601. A cylinder 605 is fixedly connected to the top of the base 604. A rotating bar 606 is rotatably connected to the inner wall of the base 604. A rotating column 603 is rotatably connected to the outer wall of the rotating column 603. The elastic clamping plate 607, the cylinder 605 on the base 604 extends, pushing the rotating column 603 to move towards the elastic clamping plate 607, the rotating column 603 squeezes the elastic clamping plate 607, so that the elastic clamping plate 607 clamps the cutting line; the tension control assembly 7 includes a hollow plate 701, the outer wall of the hollow plate 701 is fixedly connected to the left side of the support frame 4, the top of the hollow plate 701 is slidably connected to a counterweight 702, the rear side of the hollow plate 701 is slidably connected to a sliding plate 704, and the rear right side of the hollow plate 701 is fixedly connected to... The electric telescopic rod 705 has a counterweight 702 and a sliding plate 704, both of which are fixedly connected to the bottom ends of buffer springs 703. The bottom ends of both buffer springs 703 are fixedly connected to the outer wall of the hollow plate 701. Under its own weight, the counterweight 702 causes the sliding plate 704 to slide down. Under the restoring action of the two buffer springs 703, the sliding plate 704 is stabilized in the middle position of the hollow plate 701. At this time, the cutting line maintains its initial tension. The bottom end of the counterweight 702 passes through the top end of the hollow plate 701 and is connected to the sliding plate 704. The top of the hollow plate 701 is fixedly connected to the front of the hollow plate 701, and multiple pulleys 706 are rotatably connected to the front of the sliding plate 704. A movable wheel 707 is rotatably connected to the front of the sliding plate 704. The electric telescopic rod 705 extends out and pushes the counterweight 702 to move towards the top of the hollow plate 701. The sliding plate 704 connected to the counterweight 702 also moves upward, thereby driving the movable wheel 707 located above the sliding plate 704 to move synchronously. The movement of the movable wheel 707 changes the tension of the cutting line, thereby completing the adjustment of the tension of the cutting line.

[0042] Specifically, when the cutting wire needs to be clamped, cylinder 605 on base 604 extends, pushing rotating column 603 towards elastic clamping plate 607. Rotating column 603 compresses elastic clamping plate 607, clamping the cutting wire. When the cutting wire needs to be released, cylinder 605 retracts, rotating column 603 stops compressing elastic clamping plate 607, elastic clamping plate 607 returns to its original shape, and the cutting wire is released. This satisfies the clamping requirements of the cutting wire under different working conditions. In the tension control component 7, in the initial state, counterweight 702 drives sliding plate 704 down under its own weight, with two buffer springs... Under the reset action of 703, the sliding plate 704 is stabilized in the middle position of the hollow plate 701. At this time, the cutting wire maintains its initial tension. When it is necessary to adjust the tension of the cutting wire, the electric telescopic rod 705 extends and pushes the counterweight 702 towards the top end of the hollow plate 701. The sliding plate 704 connected to the counterweight 702 also moves upward, thereby driving the moving wheel 707 located above the sliding plate 704 to move synchronously. The movement of the moving wheel 707 changes the tension of the cutting wire, thereby completing the adjustment of the cutting wire tension and ensuring that the cutting wire always maintains a suitable tension during the working process, thus ensuring the smooth progress of the cutting operation.

[0043] Reference Figure 5 The left side of the outer wall of the hollow replacement plate 203 engages with the right side of the outer wall of the hollow limiting block 202, allowing the hollow replacement plate 203 to be securely installed on the hollow limiting block 202. The front and rear sides of the right side of the outer wall of the hollow replacement plate 203 engage with the inner walls of the corresponding L-shaped pressure plate 204, facilitating the disassembly and installation of the hollow replacement plate 203. The L-shaped pressure plate 204 and the hollow limiting block 202 are connected by bolts, providing a firm and detachable connection between the L-shaped pressure plate 204 and the hollow limiting block 202. The inclined block 208... The outer wall of the inclined block 2082 engages with the inner wall of the limiting notch 2084, limiting the movement trajectory of the inclined block 2082 so that it can only slide in a straight line under the guidance of the limiting notch 2084; the outer walls of the first wire feeding wheel 2074 and the second wire feeding wheel 2076 are located on the front and rear sides of the inner wall of the hollow replacement plate 203, so that the first wire feeding wheel 2074 and the second wire feeding wheel 2076 form a stable electrode wire clamping and conveying channel. The centers of the inlet tube 205 and the outlet tube 206 are on the same horizontal plane, ensuring that the electrode wire can maintain horizontal linear movement during the wire threading process;

[0044] Specifically, the snap-fit ​​structure design allows the hollow replacement plate 203 to be securely mounted on the hollow limiting block 202. Simultaneously, the snap-fit ​​structure facilitates the disassembly and installation of the hollow replacement plate 203. When it is necessary to replace the inlet cylinder 205 and outlet cylinder 206 with different specifications to accommodate electrode wires of different diameters, the operator can quickly complete the replacement operation, improving the equipment's versatility and ease of use. Furthermore, the snap-fit ​​between the L-shaped pressure plate 204 and the hollow replacement plate 203 further enhances the stability and reliability of the hollow replacement plate 203's installation. The snap-fit ​​design on both the front and rear sides applies constraint to the hollow replacement plate 203 from different directions, effectively resisting external force interference from different directions. This ensures that the hollow replacement plate 203 will not shift when the wire feeding rollers 1 2074 and 2076 clamp and transport the electrode wire. The bolt connection method is an L-shaped pressure plate 204. 4. The hollow limiting block 202 provides a firm and detachable connection. The operator can easily remove the L-shaped pressure plate 204 by simply unscrewing the bolts, which facilitates and quickly operates the relevant components, reducing the difficulty and time cost of equipment maintenance. The outer wall of the tilting block 2082 engages with the inner wall of the limiting recess 2084, limiting the movement trajectory of the tilting block 2082 so that it can only slide in a straight line under the guidance of the limiting recess 2084. The outer walls of the first wire feeding wheel 2074 and the second wire feeding wheel 2076 are located on the front and rear sides of the inner wall of the hollow replacement plate 203, so that the first wire feeding wheel 2074 and the second wire feeding wheel 2076 form a stable electrode wire clamping and conveying channel. The centers of the inlet tube 205 and the outlet tube 206 are on the same horizontal plane, ensuring that the electrode wire can maintain horizontal straight-line movement during the wire threading process, reducing the bending and friction loss of the electrode wire.

[0045] Working Principle: First, the processing table 1 serves as the basic structure of the whole, supporting all components. The support frame 4 provides installation support for the multi-directional adjustment mechanism 3. The mounting plate 5 is used to fix and engage the observation mechanism 2. The limiting plate 201 is used to fix the overall structure. The hollow limiting block 202 forms the wire feeding channel. The L-shaped pressure plate 204 on its right side is used to fix the hollow replacement plate 203. The hollow replacement plate 203 guides the electrode wire in and out through the inlet tube 205 and the outlet tube 206, and can be easily disassembled and replaced to adapt to different specifications of electrode wire. When started, the servo motor 2071 of the drive assembly 207 starts to run, driving the drive column 2072 to rotate, so that the drive gear 2073 and the wire feeding wheel 2074 rotate synchronously. The driven gear 2073 meshes with the driven gear 2075, causing the wire feeding wheel 2076 to rotate in the opposite direction. The two wire feeding wheels cooperate to clamp and transport the electrode wire. When the cylinder 2081 of the adjusting component 208 extends or retracts, it pushes the tilting block 2082 to move within the limiting recess 2084, causing the tilting hollow bar 2083 to slide, thereby adjusting the position of the driven gear 2075 and changing the distance between the two wire feeding wheels. At the same time, it disengages the driven gear 2075 from the driving gear 2073, so that the device can be switched from automatic wire feeding to manual wire feeding. This allows for switching when manual adjustment is required. In addition, an observation channel is formed on the adjacent side of the two L-shaped pressure plates 204 to observe the movement of the electrode wire.

[0046] Furthermore, through the multi-directional adjustment mechanism 3, when the working position of the electrode wire needs to be adjusted, the stepper motors 302 located on both sides of the moving plate 301 are started, driving the lead screw 304 to rotate, causing the fixed block 306 threadedly connected to the lead screw 304 to drive the concave block 305 to slide along the slide rail 303. The top concave block 305 is connected to the support frame 4 through the fixed plate 308, and the bottom concave block 305 drives the mounting plate 5 to move through the L-shaped connecting plate 307, thereby achieving precise adjustment in the horizontal direction.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wire feeding and moving device for the upper wire arm of a medium-speed wire EDM machine, comprising a processing table (1) and a mounting plate (5), characterized in that: The top of the processing table (1) is fixedly connected to a support frame (4), the outer wall of the mounting plate (5) is provided with a locking observation mechanism (2), the bottom of the support frame (4) is provided with a multi-directional adjustment mechanism (3), the multi-directional adjustment mechanism (3) is used for horizontal adjustment, the top left side of the processing table (1) is provided with a wire feeding assembly (6), and the left side of the support frame (4) is provided with a tension control assembly (7). The locking observation mechanism (2) includes a limiting plate (201). The rear side of the limiting plate (201) is fixedly connected to the front side of the outer wall of the mounting plate (5). A hollow limiting block (202) is fixedly connected to the front side of the limiting plate (201). An L-shaped pressure plate (204) is fixedly connected to both the front and rear sides of the right side of the hollow limiting block (202). A hollow replacement plate (203) is provided in the middle of the right side of the hollow limiting block (202). An inlet cylinder (205) is threaded to the top of the inner wall of the hollow replacement plate (203). An outlet cylinder (206) is threaded to the bottom of the inner wall of the hollow replacement plate (203). A driving component (207) is provided on the left side of the hollow limiting block (202). An adjustment component (208) is provided on the front side of the hollow limiting block (202).

2. The wire feeding and moving device for the upper wire cutting arm of a medium-speed wire EDM machine according to claim 1, characterized in that: The multi-directional adjustment mechanism (3) includes a movable plate (301). The outer wall of the movable plate (301) is located at the bottom end of the support frame (4). Slide rails (303) are fixedly connected to both the upper and lower sides of the outer wall of the movable plate (301). A concave block (305) is slidably connected to the outer wall of the slide rail (303). A fixing block (306) is fixedly connected to the outer wall of the concave block (305). Stepper motors (302) are fixedly connected to both sides of the outer wall of the movable plate (301). The output end of the stepper motor (302) passes through... The outer wall of the movable plate (301) is fixedly connected to a lead screw (304), the outer wall of the lead screw (304) is threadedly connected to the inner wall of the corresponding fixed block (306), the top of the top concave block (305) is fixedly connected to a fixed plate (308), the top of the fixed plate (308) is fixedly connected to the bottom of the support frame (4), the bottom of the bottom concave block (305) is fixedly connected to an L-shaped connecting plate (307), the front side of the L-shaped connecting plate (307) is fixedly connected to the rear side of the mounting plate (5).

3. The wire feeding and moving device for the upper wire cutting arm of a medium-speed wire EDM machine according to claim 1, characterized in that: The drive assembly (207) includes a servo motor (2071). The outer wall of the servo motor (2071) is fixedly connected to the front left end of the limiting plate (201). The output end of the servo motor (2071) is fixedly connected to a drive column (2072). The left side of the outer wall of the drive column (2072) is fixedly connected to a drive gear (2073). The right side of the outer wall of the drive column (2072) passes through the left side of the hollow limiting block (202) and is fixedly connected to a wire feed wheel (2074). The outer wall of the drive gear (2073) is meshed with a driven gear (2075). The right end of the driven gear (2075) passes through the left side of the hollow limiting block (202) and is fixedly connected to a wire feed wheel (2076).

4. The wire feeding and moving device for the upper wire cutting arm of a medium-speed wire EDM machine according to claim 3, characterized in that: The adjustment assembly (208) includes a cylinder (2081), the outer wall of which is fixedly connected to the front side of the hollow limiting block (202), and an inclined block (2082) is fixedly connected to one end of the cylinder (2081). A limiting notch (2084) is provided on the front side of the hollow limiting block (202), and an inclined hollow strip (2083) is slidably connected to the inner wall of the limiting notch (2084). The inner wall of the inclined hollow strip (2083) engages with the outer wall of the driven gear (2075).

5. The wire feeding and moving device for the upper wire cutting arm of a medium-speed wire EDM machine according to claim 1, characterized in that: The wire feeding assembly (6) includes a U-shaped plate (601), the bottom end of which is fixedly connected to the top left side of the processing table (1). A DC motor (602) is fixedly connected to the rear side of the U-shaped plate (601). The output end of the DC motor (602) passes through the rear side of the U-shaped plate (601) and is fixedly connected to a rotating column (603). A base (604) is fixedly connected to the bottom left side of the inner wall of the U-shaped plate (601). A cylinder (605) is fixedly connected to the top of the base (604). A rotating bar (606) is rotatably connected to the inner wall of the base (604). An elastic clamp (607) is rotatably connected to the outer wall of the rotating column (603).

6. The wire feeding and moving device for the upper wire cutting arm of a medium-speed wire EDM machine according to claim 1, characterized in that: The tension control assembly (7) includes a hollow plate (701), the outer wall of which is fixedly connected to the left side of the support frame (4). A counterweight (702) is slidably connected to the top of the hollow plate (701), and a sliding plate (704) is slidably connected to the rear side of the hollow plate (701). An electric telescopic rod (705) is fixedly connected to the right rear part of the hollow plate (701). The counterweight (702) and the sliding plate (704) are connected to each other. The bottom ends of the two buffer springs (703) are fixedly connected to the outer wall of the hollow plate (701). The bottom end of the counterweight (702) passes through the top end of the hollow plate (701) and is fixedly connected to the top end of the sliding plate (704). The front side of the hollow plate (701) is rotatably connected to a plurality of pulleys (706), and the front side of the sliding plate (704) is rotatably connected to a movable wheel (707).

7. The wire feeding and moving device for the upper wire cutting arm of a medium-speed wire EDM machine according to claim 1, characterized in that: The left side of the outer wall of the hollow replacement plate (203) engages with the right side of the outer wall of the hollow limiting block (202), and the front and rear sides of the right side of the outer wall of the hollow replacement plate (203) engage with the inner walls of the corresponding L-shaped pressure plate (204).

8. The wire feeding and moving device for the upper wire cutting arm of a medium-speed wire EDM machine according to claim 4, characterized in that: The L-shaped pressure plate (204) and the hollow limiting block (202) are connected by bolts, and the outer wall of the inclined block (2082) engages with the inner wall of the limiting recess (2084).

9. The wire feeding and moving device for the upper wire cutting arm of a medium-speed wire EDM machine according to claim 3, characterized in that: The outer walls of the first wire feeding wheel (2074) and the second wire feeding wheel (2076) are located on the front and rear sides of the inner wall of the hollow replacement plate (203), and the centers of the inlet tube (205) and the outlet tube (206) are on the same horizontal plane.

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