Wire threading device for wire threading and wire connecting of medium-speed wire cutting
Patent Information
- Application Number
- CN202522198204.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-10-17
AI Technical Summary
[0005]为了弥补以上不足，本实用新型提供了中走丝线切割下丝臂穿丝接丝装置，旨在改善现有技术中丝线输送张力波动和机床振动的工况下，夹持件会出现松动，导致接线不稳定的问题
1、本实用新型中，通过送线器输送丝线至接丝机构，穿线孔引导丝线进入，动力组件中三轴气缸推动推板带动双向齿条，齿条啮合驱动主动齿轮，经转杆带动转轮二通过皮带使得转轮一转动，使L型接丝件开合，配合拉丝机构拉动丝线，接线辊与挡板辅助丝线转向限位，实现了丝线稳定输送与接丝，保障穿丝接丝过程高效有序，提高接线稳定性。
Smart Images
Figure CN224846740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire cutting technology, and in particular to a wire feeding and splicing device for the lower wire arm of a medium-speed wire cutting machine. Background Technology
[0002] The lower lead arm of a medium-speed wire EDM machine is one of its core functional components. It is mainly used to lower, transport, and guide the wire. It is a key structure connecting the wire supply system and the cutting area. During the medium-speed wire EDM process, the machine tool needs to use the principle of electrical discharge to cut metal workpieces with high precision through continuous and stable wire movement. The lower lead arm can accurately control the wire transport path and tension to ensure that the wire reaches the cutting area according to the preset trajectory, thereby ensuring the accuracy of workpiece cutting.
[0003] The wire threading and splicing device of the lower wire arm in a medium-speed wire EDM is a functional component integrated on the lower wire arm that is specifically responsible for threading and splicing the wire. Its core function is to smoothly guide the wire from the wire feeding system to the subsequent transmission structure of the lower wire arm, and to complete the precise connection of the old and new wires in the scenario of wire replacement and breakage repair, so that the wire can continuously and smoothly enter the cutting cycle.
[0004] Existing wire cutting lower arm wire threading and splicing devices, through the setting of simple guide holes and roller structures, can achieve the initial threading and conveying of wires, avoiding the problems of wire deviation and tangling due to lack of guidance. However, due to the limitations of the structural design, the splicing process relies on manual assistance to adjust the wire position. The wire is limited by a clamping component driven by a single spring. Under the conditions of wire conveying tension fluctuation and machine tool vibration, the clamping component may loosen, causing the wire to deviate at the moment of splicing, affecting the smoothness of subsequent wire transmission and making the splicing unstable. Summary of the Invention
[0005] To overcome the above deficiencies, this utility model provides a wire feeding and splicing device for the lower wire arm of a medium-speed wire EDM, which aims to improve the problem that the clamping parts may loosen under the conditions of wire conveying tension fluctuation and machine tool vibration, resulting in unstable wiring.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a wire feeding and splicing device for a wire cutting lower arm, comprising a base, a column fixedly connected to the top of the base, a wire feeder fixedly connected to the upper front side of the column, a horizontal plate fixedly connected to the lower front side of the column, a wire splicing mechanism provided at the right end of the horizontal plate, and a wire pulling mechanism provided at the bottom of the horizontal plate, the wire pulling mechanism being used to pull the wire; The wire splicing mechanism includes a mounting block, the bottom of which is fixedly connected to the top right end of a horizontal plate. A wire-passing hole is provided on the top of the mounting block. U-shaped frames are fixedly connected to the front and rear sides of the top of the mounting block. Rotating shafts are rotatably connected inside each of the two U-shaped frames. L-shaped wire splicing components are fixedly connected to the outer walls of each of the two rotating shafts. Adjacent sides of the two L-shaped wire splicing components are abutted together. A rotating wheel is fixedly connected to the right end of each of the two rotating shafts through the U-shaped frames. A wiring groove is provided on the right side of the horizontal plate. A wiring roller is rotatably connected to the inner side of the wiring groove. A baffle is fixedly connected to the bottom inner side of the wiring groove. A wire splicing port is slidably connected to the top of the baffle. A power assembly is provided on the right side of the mounting block.
[0007] As a further description of the above technical solution: The wire drawing mechanism includes a fixed block 1, the top of which is slidably connected to the top inner side of the horizontal plate. A clamp cylinder is fixedly connected to the front side of the fixed block 1, a slotted switch is fixedly connected to the bottom of the fixed block 1, a square guide is fixedly connected to the right side of the fixed block 1, a wire outlet is connected to the left side of the wiring slot, a moving component is provided on the left side of the fixed block 1, a guiding component is provided on the top of the fixed block 1, and a detection component is provided on the rear right side of the horizontal plate.
[0008] As a further description of the above technical solution: The power assembly includes a fixed plate and a belt. The left side of the fixed plate is fixedly connected to the right side of the horizontal plate. Two rotating wheels are rotatably connected to the front and rear sides of the bottom right end of the horizontal plate. Two rotating rods are fixedly connected to the right sides of the two rotating wheels. The right ends of the two rotating rods pass through the fixed plate and are fixedly connected to a drive gear. A three-axis cylinder is fixedly connected to the right side of the fixed plate. A push plate is fixedly connected to the output end of the three-axis cylinder. Two bidirectional racks are fixedly connected to the front and rear sides of the top of the push plate. The opposite sides of the two bidirectional racks are respectively meshed with the corresponding drive gears. The two rotating wheels are connected to the outer walls of the corresponding rotating wheels via belts.
[0009] As a further description of the above technical solution: The moving component includes a motor, one end of which is fixedly connected to the rear left end of the horizontal plate. A sliding rail is fixedly connected to the bottom of the horizontal plate, and a sliding block is slidably connected to the bottom of the sliding rail. The bottom of the sliding block is fixedly connected to the top of a fixed block.
[0010] As a further description of the above technical solution: The guide assembly includes a double slider guide rail, the top of which is fixedly connected to the top inner side of the horizontal plate, and two guide blocks are slidably connected to the outer wall of the double slider guide rail, with the bottom of each guide block fixedly connected to the top of a fixed block.
[0011] As a further description of the above technical solution: The detection assembly includes an outlet tube, the right end of which is fixedly connected to the left side of a fixing block. A connecting block is fixedly connected to the bottom left side of the horizontal plate. A power rack is slidably connected to the front side of the connecting block. Extension blocks are fixedly connected to the upper and lower ends of the front side of the connecting block. A rotating gear is rotatably connected to the adjacent side of the two extension blocks. A sensor is fixedly connected to the left side of the rotating gear. The front side of the power rack meshes with the rotating gear. A push cylinder is fixedly connected to the bottom of the horizontal plate. The output end of the push cylinder is fixedly connected to the right end of the power rack.
[0012] As a further description of the above technical solution: The outer wall of the wire-connecting roller matches the internal dimensions of the wire-connecting groove, and the bottom of the wire-passing hole is connected to the top of the wire-connecting groove.
[0013] As a further description of the above technical solution: The right side of the square guide corresponds to the left side of the wire outlet, and the bottom of the adjacent side of the two L-shaped wire connectors is in contact with the top of the wire threading hole.
[0014] This utility model has the following beneficial effects: 1. In this utility model, the wire is fed to the wire splicing mechanism by the wire feeder, and the wire is guided into the threading hole. The three-axis cylinder in the power component pushes the push plate to drive the bidirectional rack. The rack meshes with and drives the drive gear, which drives the rotating wheel two through the rotating rod and the belt to make the rotating wheel one rotate, so that the L-shaped wire splicing part opens and closes. In conjunction with the wire pulling mechanism, the wire is pulled. The wire splicing roller and the baffle assist the wire to turn and limit the direction, so as to realize the stable feeding and splicing of the wire, ensure the efficient and orderly wire threading and splicing process, and improve the splicing stability.
[0015] 2. In this utility model, the push cylinder drives the rack and gear to turn the sensor to detect the wire, the clamp cylinder clamps the wire, the running gear rotates, and the moving rack moves the fixed block to translate, thus realizing stable clamping of the wire and control of the exposed length of the wire, ensuring the accuracy and stability of the wire processing. Attached Figure Description
[0016] Figure 1 This is a perspective view of the wire feeding and splicing device for the lower wire arm of the wire cutting machine proposed in this utility model. Figure 2 This is a front view of the wire feeding and splicing device for the lower wire arm of the wire cutting machine proposed in this utility model; Figure 3 This is an exploded view of the structure of the wire feeding and splicing device for the lower wire arm of the wire cutting machine proposed in this utility model; Figure 4This is an exploded view of the wire connection mechanism of the wire feeding and connecting device for the lower wire arm of the wire cutting machine proposed in this utility model; Figure 5 This is an exploded view of the wire drawing mechanism of the wire feeding and splicing device for the lower wire arm of the wire cutting machine proposed in this utility model; Figure 6 This is a schematic diagram of the detection component structure of the wire threading and splicing device for the lower wire arm of the medium-speed wire cutting machine proposed in this utility model; Figure 7 This is a schematic diagram of the detection component structure of the wire threading and splicing device for the lower wire arm of the wire cutting machine proposed in this utility model.
[0017] Legend: 1. Base; 2. Wire connecting mechanism; 201. Mounting block; 202. Wire threading hole; 203. U-shaped frame; 204. Rotating shaft; 205. L-shaped wire connecting piece; 206. Rotating wheel one; 207. Wiring groove; 208. Wiring roller; 209. Baffle; 210. Power assembly; 2101. Fixing plate; 2102. Rotating wheel two; 2103. Rotating rod; 2104. Drive gear; 2105. Three-axis cylinder; 2106. Push plate; 2107. Bidirectional rack; 2108. Belt; 211. Wire connecting port; 3. Wire drawing mechanism; 301. Fixing block one; 3 02. Clamp cylinder; 303. Slotted switch; 304. Square guide; 305. Wire outlet; 306. Moving component; 3061. Motor; 3062. Sliding rail; 3063. Sliding block; 307. Guide component; 3071. Double slider guide rail; 3072. Guide block; 308. Detection component; 3081. Outlet tube; 3082. Connecting block; 3083. Power rack; 3084. Extension block; 3085. Rotating gear; 3086. Sensor; 3087. Push cylinder; 4. Column; 5. Wire feeder; 6. Horizontal plate. Detailed Implementation
[0018] 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.
[0019] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a wire feeding and connecting device for a wire cutting lower arm, including a base 1. The base 1 provides stable support for the entire device. A column 4 is fixedly connected to the top of the base 1. The column 4 provides a mounting carrier for the wire feeder 5 and the horizontal plate 6. The wire feeder 5 is connected to the upper front side of the column 4. The wire feeder 5 can realize the function of wire feeding. The horizontal plate 6 is fixedly connected to the lower front side of the column 4. The horizontal plate 6 can support the wire connecting mechanism 2 and the wire pulling mechanism 3. The wire connecting mechanism 2 is provided at the right end of the horizontal plate 6. The wire connecting mechanism 2 can complete the wire receiving and guiding operation. The wire pulling mechanism 3 is provided at the bottom of the horizontal plate 6. The wire pulling mechanism 3 is used to pull the wire and drive the wire to move continuously. The wire splicing mechanism 2 includes a mounting block 201, which provides a mounting base for the threading hole 202 and the U-shaped frame 203. The bottom of the mounting block 201 is fixedly connected to the top right end of the horizontal plate 6, ensuring a stable connection between the mounting block 201 and the horizontal plate 6. The top of the mounting block 201 has a threading hole 202, which allows the wire to pass through and provides initial guidance. U-shaped frames 203 are fixedly connected to the front and rear sides of the top of the mounting block 201, providing rotational support for the rotating shaft 204. The rotating shaft 204 is rotatably connected inside both U-shaped frames 203, driving the L-shaped wire splicing component 205 to rotate. L-shaped wire splicing components 205 are fixedly connected to the outer walls of both rotating shafts 204. When closed, the L-shaped wire splicing component 205 limits the wire movement; when open, it provides space for wire delivery. The adjacent sides of component 205 are fitted together to enhance the limiting effect on the wire. The right ends of the two rotating shafts 204 pass through the U-shaped frame 203 and are fixedly connected to the first rotating wheel 206. The first rotating wheel 206 can transmit power through the belt 2108. A wiring groove 207 is provided on the right side of the horizontal plate 6. The wiring groove 207 can accommodate the wiring roller 208 and the baffle 209. The wiring roller 208 is rotatably connected to the inner side of the wiring groove 207. The wiring roller 208 can assist the wire to turn and receive the wire. The baffle 209 is fixedly connected to the bottom of the inner side of the wiring groove 207. The baffle 209 can prevent the wire from deviating from the wiring roller 208. The top of the baffle 209 is slidably connected to the wire receiving port 211. The wire receiving port 211 is used to allow the wire to pass through and prevent deviation. A power component 210 is provided on the right side of the mounting block 201. The power component 210 can drive the L-shaped wire receiving component 205 to open and close. The power assembly 210 includes a fixing plate 2101 and a belt 2108. The fixing plate 2101 provides mounting support for each power component. The left side of the fixing plate 2101 is fixedly connected to the right side of the horizontal plate 6, achieving a stable connection between the fixing plate 2101 and the horizontal plate 6. Rotary wheels 2102 are rotatably connected to the front and rear sides of the bottom right end of the horizontal plate 6. Rotary wheels 2102 can transmit power to rotary wheels 206. Rotary rods 2103 are fixedly connected to the right sides of both rotary wheels 2102, driving the rotary wheels 2102 to rotate. The right ends of both rotary rods 2103 pass through the fixing plate 2101 and are fixedly connected to a drive gear 2104. The drive gear 2104 can transmit power by meshing with a double-sided rack 2107. A three-axis cylinder 2105 is fixedly connected to the right side of the push plate 2106. The three-axis cylinder 2105 can provide power to drive the push plate 2106 to move. The output end of the three-axis cylinder 2105 is fixedly connected to the push plate 2106. The push plate 2106 can drive the bidirectional rack 2107 to move synchronously. The top front and rear sides of the push plate 2106 are fixedly connected to the bidirectional rack 2107. The bidirectional rack 2107 can drive the two drive gears 2104 to rotate. The opposite sides of the two bidirectional racks 2107 are respectively meshed with the corresponding drive gears 2104 to realize the transmission and conversion of power. The outer walls of the two rotating wheels 2102 and the corresponding rotating wheels 206 are connected by a belt 2108. The belt 2108 can realize the power transmission between the rotating wheels 2102 and the rotating wheels 206. Specifically, in this wire cutting lower wire arm threading and splicing device, the base 1 provides stable support for the entire device. The column 4 is fixed to the top of the base 1 and is used to install the wire feeder 5 and the horizontal plate 6. The wire feeder 5 is located in the upper middle part of the front side of the column 4 and is responsible for feeding the wire. The horizontal plate 6 is fixed in the lower middle part of the front side of the column 4 and serves as the mounting carrier for the wire splicing mechanism 2 and the wire pulling mechanism 3. The wire pulling mechanism 3 is located at the bottom of the horizontal plate 6 and is used to pull the wire to complete the feeding. The mounting block 201 in the wire splicing mechanism 2 is fixed to the top right end of the horizontal plate 6. The wire threading hole 202 at the top of the mounting block 201 allows the wire to pass through and plays a preliminary guiding role. The U-shaped frame 203 on the front and rear sides of the top of the mounting block 201 provides rotational support for the rotating shaft 204. The L-shaped wire splicing piece 205 on the rotating shaft 204 fits when closed and can limit the wire. When open, it makes room for the wire feeding. The rotating wheel 206 at the right end of the rotating shaft 204 is connected to the rotating wheel by the belt 2108. The connection 2102 enables power transmission. The wiring groove 207 on the right side of the horizontal plate 6 is equipped with a wiring roller 208, which is used to receive the wire and assist its turning. The baffle 209 at the bottom of the inner side of the wiring groove 207 can prevent the wire from deviating from the wiring roller 208. The fixing plate 2101 of the power assembly 210 is fixed on the right side of the horizontal plate 6, providing a mounting base for the rotating wheel 2102, the rotating rod 2103, the drive gear 2104 and the three-axis cylinder 2105. When the three-axis cylinder 2105 is working, it pushes the push plate 2106 to move, which drives the bidirectional rack 2107 on the top of the push plate 2106 to move. The bidirectional rack 2107 meshes with the drive gear 2104, driving the drive gear 2104 and the rotating rod 2103 to rotate. Then, through the rotating wheel 2102 and the belt 2108, the rotating wheel 206 and the rotating shaft 204 are driven to rotate, realizing the opening and closing of the L-shaped wire connector 205 and completing the limiting and releasing actions in the wire connection process.
[0020] Reference Figure 2 , Figure 5 and Figure 6The wire drawing mechanism 3 includes a fixing block 301, which serves as the mounting carrier for the various components of the wire drawing mechanism 3. The top of the fixing block 301 is slidably connected to the top inner side of the horizontal plate 6, enabling the fixing block 301 to slide along the horizontal plate 6. A clamp cylinder 302 is fixedly connected to the front side of the fixing block 301, which can clamp and release the wire. A slotted switch 303 is fixedly connected to the bottom of the fixing block 301, which can detect the position of the wire. A square guide is fixedly connected to the right side of the fixing block 301. The square guide 304 can guide the wire and prevent it from deviating. The left side of the wiring groove 207 is connected to the wire outlet 305, which can provide an output channel for the wire. The left side of the fixed block 301 is provided with a moving component 306, which can drive the fixed block 301 to move. The top of the fixed block 301 is provided with a guide component 307, which can ensure that the fixed block 301 moves smoothly. The right rear side of the horizontal plate 6 is provided with a detection component 308, which can realize the switching of the wire's conductivity function. The moving component 306 includes a motor 3061, which provides driving force. One end of the motor 3061 is fixedly connected to the rear left end of the horizontal plate 6. This connection method ensures that the motor 3061 is stably installed. A sliding rail 3062 is fixedly connected to the bottom of the horizontal plate 6. The sliding rail 3062 can guide the sliding direction. A sliding block 3063 is slidably connected to the bottom of the sliding rail 3062. The sliding block 3063 can move along the rail. The bottom of the sliding block 3063 is fixedly connected to the top of the fixed block 301. The guide assembly 307 includes a double slider guide rail 3071, which can serve as a sliding track for the guide block 3072. The top of the double slider guide rail 3071 is fixedly connected to the top inner side of the horizontal plate 6, which can fix the double slider guide rail 3071. Two guide blocks 3072 are slidably connected to the outer wall of the double slider guide rail 3071. The guide blocks 3072 can be connected to the fixed block 301 and play a guiding role. The bottom of the two guide blocks 3072 is fixedly connected to the top of the fixed block 301, which can realize the linkage between the guide assembly 307 and the fixed block 301. The detection component 308 includes an output tube 3081 for guiding the line output. The right end of the output tube 3081 is fixedly connected to the left side of the fixing block 301 to achieve structural stability. A connecting block 3082 is fixedly connected to the bottom left side of the horizontal plate 6 to provide an installation base for subsequent components. A power rack 3083 is slidably connected to the front side of the connecting block 3082, allowing the power rack 3083 to slide along the connecting block 3082. Extension blocks 30 are fixedly connected to the upper and lower ends of the front side of the connecting block 3082. 84, for mounting the rotating gear 3085, the rotating gear 3085 is rotatably connected to the adjacent side of the two extension blocks 3084, the sensor 3086 is fixedly connected to the left side of the rotating gear 3085, the front side of the power rack 3083 is meshed with the rotating gear 3085, the bottom of the cross plate 6 is fixedly connected to the push cylinder 3087 to provide power output, the output end of the push cylinder 3087 is fixedly connected to the right end of the power rack 3083 to drive the power rack 3083 to move left and right; Specifically, in the wire drawing mechanism 3, the fixed block 301 serves as the core mounting carrier, with its top slidably connected to the top of the inner side of the horizontal plate 6. The clamp cylinder 302 on the front side can clamp and release the wire. The slotted switch 303 at the bottom can detect the wire position to confirm the clamping state. The square guide 304 on the right side can prevent the wire from shifting during the pulling process. The wire outlet 305 connected to the left side of the wiring slot 207 provides an output channel for the wire, ensuring that the wire smoothly enters the wire drawing mechanism 3. In the moving component 306, the motor 3061 starts, causing the sliding block 3063 at the bottom of the sliding rail 3062 to move left and right, while simultaneously driving the fixed block 301. Horizontal displacement enables the pulling and conveying of the wire. The double slider guide rail 3071 is fixed to the top of the inner side of the horizontal plate 6. The bottom of the two guide blocks 3072 slidably connected to the outer wall are connected to the top of the fixed block 301, providing stable guidance for the movement of the fixed block 301 and ensuring the smoothness of the movement process. When the wire is pulled out from the outlet tube 3081, the push cylinder 3087 is activated to push the power rack 3083 to move to the left, driving the rotating gear 3085 to rotate. At the same time, the sensor 3086 rotates in the direction of the wire to detect the wire. When the wire is detected, the clamp cylinder 302 is activated to clamp the wire, thereby controlling the length of the exposed wire.
[0021] Reference Figure 4 and Figure 5The outer wall of the wire-connecting roller 208 matches the internal size of the wire-connecting groove 207, ensuring that the wire-connecting roller 208 rotates stably and does not wobble within the wire-connecting groove 207. The bottom of the wire-passing hole 202 is connected to the top of the wire-connecting groove 207, allowing the wire to smoothly enter the wire-connecting groove 207 directly from the wire-passing hole 202. The right side of the square guide 304 corresponds to the left side of the wire outlet 305, guiding the wire output from the wire outlet 305 precisely into the square guide 304. The bottom of the adjacent side of the two L-shaped wire-connecting parts 205 is in contact with the top of the wire-passing hole 202, providing a tight limiting effect for the wire passing through the wire-passing hole 202. Specifically, the outer wall of the wire-connecting roller 208 matches the internal dimensions of the wire-connecting groove 207, ensuring a tight fit and stability during wire rotation. This effectively assists in wire turning and conveying. The bottom of the wire-passing hole 202 connects to the top of the wire-connecting groove 207, allowing the wire passing through the wire-passing hole 202 to smoothly enter the wire-connecting groove 207, forming a continuous wire conveying channel and preventing interruption or deviation in wire conveying. The right side of the square guide 304 corresponds to the left side of the wire outlet 305, connecting to the wire output from the wire outlet 305 and guiding the wire accurately into the subsequent operation of the wire drawing mechanism 3, preventing the wire from deviating from the predetermined path after exiting the wire. The bottom of the adjacent sides of the two L-shaped wire-connecting pieces 205 are both in contact with the top of the wire-passing hole 202. In the closed state, they can tightly cover the top outlet of the wire-passing hole 202, providing a reliable limiting and fixing effect for the wire passing through the wire-passing hole 202, ensuring the accuracy of the initial wire conveying position.
[0022] Working principle: The wire is fed to the wire splicing mechanism 2 by the wire feeder 5. The wire first passes through the wire hole 202 on the top of the mounting block 201. At this time, the two L-shaped wire splicing parts 205 are in a close-fitting state on their adjacent sides. When wire splicing is required, the power unit 210 starts working, and the three-axis cylinder 2105 starts. Its output end pushes the push plate 2106 to move. The push plate 2106 drives the bidirectional racks 2107 on the front and rear sides of the top to move synchronously. Since the two bidirectional racks 2107 are connected to the corresponding drive gears 2104 on their opposite sides, the movement of the bidirectional racks 2107 will drive the two drive gears 2104 to rotate. When the drive gears 2104 rotate, they drive the second rotating wheel 2102 to rotate through the rotating rod 2103. Since the second rotating wheel 2102 is connected to the outer wall of the corresponding first rotating wheel 206 through the belt 2108, the rotation of the second rotating wheel 2102 will drive the rotation of the first rotating wheel 206 to rotate through the belt 2108. The belt 2108 transmits the energy to the first rotating wheel 206, causing the first rotating wheel 206 to rotate. When the first rotating wheel 206 rotates, it drives the rotating shaft 204, which is fixedly connected to it, to rotate within the U-shaped frame 203. This causes the two L-shaped wire connectors 205 to rotate and open in opposite directions, making room for the subsequent feeding of the wire. Then, the wire drawing mechanism 3 starts working, pulling the wire to continue moving downward. After passing through the open L-shaped wire connectors 205, the wire passes through the wire connection port 211 and reaches the wire connection roller 208 in the wire connection groove 207. The baffle 209 can prevent the wire from deviating from the wire connection roller 208. Under the continuous pulling of the wire drawing mechanism 3, the wire completes the wire connection process along the wire connection roller 208. After the wire connection is completed, the three-axis cylinder 2105 drives the push plate 2106 and the bidirectional rack 2107 to reset, causing the two L-shaped wire connectors 205 to close again, restoring the limit on the wire, and waiting for the next wire feeding and connection operation. And when the wire passes through the wire receiving mechanism 2's connecting roller 208, it enters the wire outlet 305 and reaches the fixed block 301. At this time, the clamp cylinder 302 is activated, and its output end closes to clamp the wire. The slotted switch 303 simultaneously detects the wire position to confirm the clamping state. The motor 3061 is activated, causing the sliding block 3063 at the bottom of the sliding rail 3062 to move left and right, while simultaneously driving the fixed block 301 to move horizontally. In the guide assembly 307, the double slider guide rail 3071 is fixed to the top of the inner side of the horizontal plate 6. The guide block 3072 slides along the guide rail to provide stable guidance for the movement of the fixed block 301. The square guide 304 further ensures that the wire does not deviate during the pulling process. When the wire is pulled out from the outlet tube 3081, the push cylinder 3087 is activated to push the power rack 3083 to move to the left, driving the rotating gear 3085 to rotate. At the same time, the sensor 3086 rotates in the direction of the wire to detect the wire. When the wire is detected, the clamp cylinder 302 is activated to clamp the wire, thereby controlling the length of the exposed wire.
[0023] 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 splicing device for the lower wire arm of a medium-speed wire EDM cutter, comprising a base (1), characterized in that: A column (4) is fixedly connected to the top of the base (1), a wire feeder (5) is fixedly connected to the upper front side of the column (4), a horizontal plate (6) is fixedly connected to the lower front side of the column (4), a wire receiving mechanism (2) is provided at the right end of the horizontal plate (6), and a wire pulling mechanism (3) is provided at the bottom of the horizontal plate (6). The wire pulling mechanism (3) is used to pull the wire. The wire splicing mechanism (2) includes a mounting block (201). The bottom of the mounting block (201) is fixedly connected to the top right end of the horizontal plate (6). A wire through hole (202) is provided on the top of the mounting block (201). U-shaped frames (203) are fixedly connected to the front and rear sides of the top of the mounting block (201). A rotating shaft (204) is rotatably connected inside the two U-shaped frames (203). An L-shaped wire splicer (205) is fixedly connected to the outer wall of the two rotating shafts (204). The two L-shaped wire splicers (205) are... The two shafts (204) are attached to each other on the adjacent side. The right ends of the two shafts (204) pass through the U-shaped frame (203) and are fixedly connected to the first wheel (206). The right side of the horizontal plate (6) is provided with a wiring groove (207). The wiring groove (207) is rotatably connected to the inner side of the wiring groove (207). The bottom of the inner side of the wiring groove (207) is fixedly connected to a baffle (209). The top of the baffle (209) is slidably connected to a wire connector (211). The right side of the mounting block (201) is provided with a power assembly (210).
2. The wire feeding and splicing device for the lower wire arm of a medium-speed wire EDM cutter according to claim 1, characterized in that: The wire drawing mechanism (3) includes a fixed block (301), the top of which is slidably connected to the top of the inner side of the horizontal plate (6). A clamp cylinder (302) is fixedly connected to the front side of the fixed block (301). A slotted switch (303) is fixedly connected to the bottom of the fixed block (301). A square guide (304) is fixedly connected to the right side of the fixed block (301). A wire outlet (305) is connected to the left side of the wiring slot (207). A moving component (306) is provided on the left side of the fixed block (301). A guide component (307) is provided on the top of the fixed block (301). A detection component (308) is provided on the rear right side of the horizontal plate (6).
3. The wire feeding and splicing device for the lower wire arm of a medium-speed wire EDM cutter according to claim 1, characterized in that: The power assembly (210) includes a fixed plate (2101) and a belt (2108). The left side of the fixed plate (2101) is fixedly connected to the right side of the horizontal plate (6). The bottom right side of the horizontal plate (6) is rotatably connected to two rotating wheels (2102). The right sides of the two rotating wheels (2102) are fixedly connected to rotating rods (2103). The right ends of the two rotating rods (2103) pass through the fixed plate (2101) and are fixedly connected to a drive gear (2104). A three-axis cylinder (2105) is fixedly connected to the right side of the plate (2101). A push plate (2106) is fixedly connected to the output end of the three-axis cylinder (2105). A double-sided rack (2107) is fixedly connected to the front and rear sides of the top of the push plate (2106). The two double-sided racks (2107) are respectively meshed with the corresponding drive gear (2104) on opposite sides. The two rotating wheels (2102) are connected to the outer wall of the corresponding rotating wheel (206) through a belt (2108).
4. The wire feeding and splicing device for the lower wire arm of a medium-speed wire cutting machine according to claim 2, characterized in that: The moving component (306) includes a motor (3061), one end of which is fixedly connected to the rear left end of the horizontal plate (6). A sliding rail (3062) is fixedly connected to the bottom of the horizontal plate (6), and a sliding block (3063) is slidably connected to the bottom of the sliding rail (3062). The bottom of the sliding block (3063) is fixedly connected to the top of the fixed block (301).
5. The wire feeding and splicing device for the lower wire arm of a medium-speed wire EDM cutter according to claim 2, characterized in that: The guide assembly (307) includes a double slider guide rail (3071), the top of which is fixedly connected to the top of the inner side of the horizontal plate (6), and two guide blocks (3072) are slidably connected to the outer wall of the double slider guide rail (3071), the bottom of which is fixedly connected to the top of the first fixed block (301).
6. The wire feeding and splicing device for the lower wire arm of a medium-speed wire cutting machine according to claim 2, characterized in that: The detection component (308) includes an outlet tube (3081), the right end of which is fixedly connected to the left side of the fixing block (301). A connecting block (3082) is fixedly connected to the bottom left side of the horizontal plate (6). A power rack (3083) is slidably connected to the front side of the connecting block (3082). Extension blocks (3084) are fixedly connected to the upper and lower ends of the front side of the connecting block (3082). A rotating gear (3085) is rotatably connected to the adjacent side of the two extension blocks (3084). A sensor (3086) is fixedly connected to the left side of the rotating gear (3085). The front side of the power rack (3083) is meshed with the rotating gear (3085). A push cylinder (3087) is fixedly connected to the bottom of the horizontal plate (6). The output end of the push cylinder (3087) is fixedly connected to the right end of the power rack (3083).
7. The wire feeding and splicing device for the lower wire arm of a medium-speed wire EDM cutter according to claim 1, characterized in that: The outer wall of the wire-connecting roller (208) matches the internal size of the wire-connecting groove (207), and the bottom of the wire-through hole (202) is connected to the top of the wire-connecting groove (207).
8. The wire feeding and splicing device for the lower wire arm of a medium-speed wire cutting machine according to claim 2, characterized in that: The right side of the square guide (304) corresponds to the left side of the wire outlet (305), and the bottom of the adjacent side of the two L-shaped wire connectors (205) are in contact with the top of the wire hole (202).