A wire cutting apparatus for rapid guided piercing of molybdenum wire

Abstract

The utility model relates to wire cutting equipment technical field, and disclose a kind of wire cutting equipment for molybdenum wire quick guiding perforation, including workstation body, the right side fixed mounting of workstation body top is equipped with workstation feed mechanism, the top of the workstation body is provided with wire feeding mechanism, the wire feeding mechanism includes silk cylinder base, the silk cylinder base is fixedly installed in the left side of workstation body top. This one kind of wire cutting equipment for molybdenum wire quick guiding perforation, by setting wire feeding mechanism, adjusting assembly and driving assembly, realized the semi-automatic wire feeding of molybdenum wire, accurate straightening, eliminate the unevenness problem brought by manual operation, simplify work flow, reduce the labor intensity of staff, make perforation efficiency improve, greatly shorten single perforation time, the technical scheme significantly reduces operating intensity, improves processing consistency and equipment reliability, improves the use effect of equipment, satisfies actual use demand.

Description

Technical Field

[0001] This utility model relates to a wire cutting device for rapid guiding and drilling of molybdenum wire, belonging to the technical field of wire cutting equipment. Background Technology

[0002] Wire EDM equipment, as an important processing device, is widely used in many fields such as machinery manufacturing and mold making. Its working principle is to use a moving metal wire (such as molybdenum wire) as an electrode wire. Through pulsed electric spark discharge between the electrode wire and the workpiece, high temperature is generated to melt or vaporize the metal, thereby achieving the cutting of the workpiece.

[0003] In the field of wire EDM, the rapid guidance and precise drilling of molybdenum wire are key factors affecting processing efficiency and accuracy. However, existing wire EDM equipment faces many technical bottlenecks in this aspect. In terms of wire feeding control, traditional wire EDM equipment relies heavily on manual operation, which is prone to wire deviation or damage due to uneven force. This makes it unsuitable for the requirements of rapid drilling. This wire feeding method not only increases the labor intensity of operators but also reduces work efficiency, making it difficult to meet actual usage needs.

[0004] Therefore, a wire cutting device for rapid guiding and drilling of molybdenum wire is proposed. Utility Model Content

[0005] In view of this, the present invention provides a wire cutting device for rapid guiding and drilling of molybdenum wire, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0006] The technical solution of this utility model is implemented as follows: A wire cutting device for rapid guiding and drilling of molybdenum wire includes a worktable body. A worktable feeding mechanism is fixedly installed on the right side of the top of the worktable body. A wire feeding mechanism is provided on the top of the worktable body. The wire feeding mechanism includes a wire spool base, which is fixedly installed on the left side of the top of the worktable body. A servo motor is fixedly installed on the rear side of the wire spool base. The output end of the servo motor is fixedly connected to the wire spool body. L-shaped sleeves are fixedly installed on both the front and rear sides of the surface of the wire spool body. Electromagnetic brake discs are fixedly installed on the surfaces of the two L-shaped sleeves. An upper cantilever and a lower cantilever are provided on the top of the worktable body. Wire spool guide wheels are movably connected to the left side of the surfaces of the upper and lower cantilever arms. Both upper and lower cantilever arms are fixedly mounted with first capillary alloy tubes, with the left sides of both first capillary alloy tubes facing the spool body. A guide wheel is movably connected to the right side of both the upper and lower cantilever arms. A first micro cylinder is installed on the front side of the upper cantilever arm, with pneumatic clamps on the top of the first micro cylinder and the front side of the upper cantilever arm. A telescopic cylinder is fixedly mounted on the right side of the upper cantilever arm, with a lifting plate fixedly mounted at the bottom of the telescopic cylinder. A second capillary alloy tube is fixedly mounted on the inner surface of the lifting plate. A steering alloy block is fixedly mounted on the right side of the lower cantilever arm. Second micro cylinders are fixedly mounted on both the upper and lower sides of the front side of the lower cantilever arm. Alloy guide blocks are fixedly mounted on the inner sides of both second micro cylinders. High-frequency induction heat treatment straightening sleeves are fixedly mounted on the inner sides of both alloy guide blocks. An alloy guide block is fixedly mounted on the front side of the lower cantilever arm.

[0007] More preferably, the second capillary alloy tube and the steering alloy block are both in the same horizontal direction, and the inner dimensions of the second capillary alloy tube and the steering alloy block are both larger than the dimensions of the molybdenum wire.

[0008] More preferably, the inner sides of the two alloy guide blocks are arc-shaped, and the size of the inner cavity of the two alloy guide blocks is 1.5 times the size of the molybdenum wire.

[0009] More preferably, an adjustment assembly is provided on the top of the workbench body. The adjustment assembly includes a frame, which is fixedly installed on the rear side of the top of the workbench body. A handwheel is movably connected to the top of the frame, and a screw is fixedly installed on the bottom of the handwheel. A screw block is threadedly connected to the surface of the screw. Mounting blocks are fixedly installed on the front side of the screw block and the front side of the frame. The upper and lower cantilever arms are fixedly installed on the front sides of the two mounting blocks. A slot is opened on the surface of the upper cantilever arm. A drive motor is fixedly installed on the left side of the inner cavity of the slot. A lead screw is fixedly connected to the output end of the drive motor. A screw block is threadedly connected to the surface of the lead screw. The first micro cylinder is fixedly installed on the front side of the screw block. The two pneumatic clamps are fixedly installed on the front side of the screw block and the top of the first micro cylinder.

[0010] More preferably, the size of the groove cavity matches the size of the wire block, and the wire block is slidably connected in the groove cavity.

[0011] More preferably, limiting grooves are provided on both the left and right sides of the frame surface, and the left and right sides of the screw block are slidably connected to the inner cavities of the two limiting grooves.

[0012] More preferably, the surfaces of the upper and lower cantilever arms are each provided with a drive assembly, the drive assembly including a rotary motor and wire feeding rollers, the four rotary motors are fixedly installed on the left side of the upper cantilever surface and the right side of the lower cantilever surface, and the four wire feeding rollers are fixedly connected to the output ends of the four rotary motors.

[0013] The present invention has the following advantages due to the adoption of the above technical solution:

[0014] I. This utility model, by setting up a wire feeding mechanism, adjustment components, and drive components, and adopting a wire feeding mechanism driven by a servo motor and a drive motor in coordination, along with the setting of alloy guide blocks and high-frequency induction heat treatment straightening sleeves, achieves semi-automatic wire feeding and precise straightening of molybdenum wire. This eliminates the problem of uneven force caused by manual operation, simplifies the workflow, and reduces the labor intensity of workers. The molybdenum wire is clamped and fixed by a first micro cylinder and a pneumatic clamping plate, and is moved to the transmission wheel on the surface of the upper cantilever, ensuring the path stability of the molybdenum wire during the horizontal to vertical turning process. The integrated electromagnetic brake disc and the positioning structure of the first capillary alloy tube and the second capillary alloy tube improve the piercing efficiency and greatly shorten the single piercing time. This technical solution significantly reduces the operating intensity, improves the processing consistency and equipment reliability, enhances the use effect of the equipment, and meets the actual use needs.

[0015] Second, by setting a limiting groove, this utility model can prevent the screw block from rotating synchronously with the screw rod, thereby affecting the adjustment of the upper cantilever height.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the rotating motor structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the servo motor structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the screw structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the control mechanism structure of this utility model.

[0023] Reference numerals: 1. Workbench body; 2. Wire feeding mechanism; 201. Wire drum base; 202. Wire drum body; 203. Servo motor; 204. L-shaped sleeve; 205. Electromagnetic brake disc; 206. Upper cantilever; 207. Lower cantilever; 208. Wire drum guide wheel; 209. First capillary alloy tube; 210. Conducting wheel; 211. First miniature cylinder; 212. Pneumatic clamp; 213. Telescopic cylinder; 214. Lifting plate; 215. Second capillary alloy tube; 216. Rotary... 217. Alloy block; 218. Second micro cylinder; 219. Alloy guide block; 220. High-frequency induction heat treatment straightening sleeve; 3. Alloy guide block; 301. Adjustment assembly; 302. Frame; 303. Handwheel; 304. Screw; 305. Screw block; 306. Mounting block; 307. Slot; 308. Drive motor; 309. Lead screw; 310. Lead block; 4. Limiting slot; 401. Drive assembly; 402. Rotary motor; 403. Wire feeding roller; 5. Worktable feeding mechanism. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figure 1-5As shown, this utility model embodiment provides a wire cutting device for rapid guiding and drilling of molybdenum wire, including a worktable body 1. A worktable feed mechanism 5 is fixedly installed on the right side of the top of the worktable body 1. A wire feeding mechanism 2 is provided on the top of the worktable body 1. The wire feeding mechanism 2 includes a wire spool base 201, which is fixedly installed on the left side of the top of the worktable body 1. A servo motor 203 is fixedly installed on the rear side of the wire spool base 201. The output end of the servo motor 203 is fixedly connected to the wire spool body 202. L-shaped sleeves 204 are fixedly installed on both the front and rear sides of the surface of the wire spool body 202. Electromagnetic brake discs 205 are fixedly installed on the surfaces of the two L-shaped sleeves 204. An upper cantilever 206 is provided on the top of the worktable body 1. The top of the platform body 1 is provided with a lower cantilever 207. A wire drum guide wheel 208 is movably connected to the left side of both the upper cantilever 206 and the lower cantilever 207. A first capillary alloy tube 209 is fixedly installed on the left side of both the upper cantilever 206 and the lower cantilever 207, with the left sides of both first capillary alloy tubes 209 facing the wire drum body 202. A transmission wheel 210 is movably connected to the right side of both the upper cantilever 206 and the lower cantilever 207. A first micro cylinder 211 is provided on the front side of the upper cantilever 206. Pneumatic clamping plates 212 are provided on the top of the first micro cylinder 211 and on the front side of the upper cantilever 206. A telescopic cylinder 213 is fixedly installed on the right side of the upper cantilever 206. A lifting plate 214 is fixedly installed at the bottom of the telescopic cylinder 213. The inner surface of the lifting plate 214... A second capillary alloy tube 215 is fixedly mounted on the surface. A steering alloy block 216 is fixedly mounted on the right side of the lower cantilever 207. Second micro cylinders 217 are fixedly mounted on both the upper and lower sides of the front of the lower cantilever 207. Alloy guide blocks 218 are fixedly mounted inside the two second micro cylinders 217. High-frequency induction heat treatment straightening sleeves 219 are fixedly mounted inside the two alloy guide blocks 218. An alloy guide block 220 is fixedly mounted on the front of the lower cantilever 207. The second capillary alloy tube 215 and the steering alloy block 216 are both in the same horizontal direction. The inner dimensions of the second capillary alloy tube 215 and the steering alloy block 216 are larger than the dimensions of the molybdenum wire. The inner shape of the two alloy guide blocks 218 is arc-shaped. The size is 1.5 times that of the molybdenum wire. An adjustment assembly 3 is installed on the top of the worktable body 1. The adjustment assembly 3 includes a frame 301, which is fixedly installed on the rear side of the top of the worktable body 1. A handwheel 302 is movably connected to the top of the frame 301. A screw 303 is fixedly installed at the bottom of the handwheel 302. A screw block 304 is threaded onto the surface of the screw 303. Mounting blocks 305 are fixedly installed on the front side of both the screw block 304 and the front side of the frame 301. An upper cantilever 206 and a lower cantilever 207 are fixedly installed on the front sides of the two mounting blocks 305. A slot 306 is formed on the surface of the upper cantilever 206. A drive motor 307 is fixedly installed on the left side of the inner cavity of the slot 306. A lead screw 308 is fixedly connected to the output end of the drive motor 307.A lead screw 308 has a threaded connection to a lead block 309. A first micro cylinder 211 is fixedly installed on the front side of the lead block 309. Two pneumatic clamps 212 are fixedly installed on the front side of the lead block 309 and the top of the first micro cylinder 211. The size of the inner cavity of the slot 306 matches the size of the lead block 309. The lead block 309 is slidably connected in the inner cavity of the slot 306. Limiting grooves 310 are provided on both the left and right sides of the surface of the frame 301. The left and right sides of the screw block 304 are slidably connected in the inner cavities of the two limiting grooves 310. The surfaces of the upper cantilever 206 and the lower cantilever 207 are provided with drive components 4. The drive components 4 include rotary motors 401 and wire feeding rollers 402. The four rotary motors 401 are fixedly installed on the left side of the surface of the upper cantilever 206 and the right side of the surface of the lower cantilever 207. The four wire feeding rollers 402 are fixedly connected to the output ends of the four rotary motors 401.

[0028] By setting up a wire feeding mechanism 2, an adjustment component 3, and a drive component 4, and employing a servo motor 203 and a drive motor 307 to drive the wire feeding mechanism 2 in coordination with components such as an alloy guide block 218 and a high-frequency induction heat treatment straightening sleeve 219, semi-automatic wire feeding and precise straightening of molybdenum wire are achieved. This eliminates the problem of uneven force caused by manual operation, simplifies the workflow, and reduces the labor intensity of workers. The first micro cylinder 211 and the pneumatic clamping plate 212 clamp and fix the molybdenum wire, and drive it to move to the transmission wheel 210 on the surface of the upper cantilever 206. The integrated electromagnetic brake disc 205 and the positioning structure of the first capillary alloy tube 209 and the second capillary alloy tube 215 ensure the stability of the molybdenum wire path during the horizontal to vertical turning process, thereby improving the piercing efficiency and greatly shortening the single piercing time. This technical solution significantly reduces the operating intensity, improves the processing consistency and equipment reliability, and enhances the use effect of the equipment to meet actual use needs. By setting the limit groove 310, the screw block 304 can be prevented from rotating synchronously with the screw 303, which would affect the adjustment of the height of the upper cantilever 206.

[0029] In operation, this utility model is as follows: Before starting the wire EDM machine for rapid guiding and drilling of molybdenum wire, the workpiece to be processed must be fixed on the worktable feed mechanism 5. The workpiece position is adjusted via the worktable feed mechanism 5 to ensure the drilling point is aligned with the initial guide shaft of the steering alloy block 216. By rotating the handwheel 302, the screw 303 rotates. The molybdenum wire on the surface of the wire drum body 202 is transmitted through the wire drum guide wheel 208 on the surface of the lower cantilever 207 and the alloy guide block 220. Subsequently, through the cooperation of two second micro cylinders 217, the alloy guide block 218 and the high-frequency induction heat treatment straightening sleeve 219 move inward. The high-frequency induction heat treatment straightening sleeve 219 heats the molybdenum wire. Driven by the rotating motor 401 on the surface of the lower cantilever 207, the wire feeding roller 402 transports the molybdenum wire. At this time, the molybdenum wire is transmitted through the transmission wheel 210 on the surface of the lower cantilever 207. Adjusting the steering alloy block 216 allows the molybdenum wire to pass through the workpiece. At this time, the telescopic cylinder 213 extends downward, causing the lifting plate 214 to move the second capillary alloy tube 215 downward synchronously. The molybdenum wire passing through the workpiece enters the inner cavity of the second capillary alloy tube 215. The molybdenum wire is then conducted through the transmission wheel 210, and the drive motor 307 drives the lead screw 308 to output. The lead screw 308 drives the wire block 309, the first micro cylinder 211, and the pneumatic clamping plate 212 to move to the right. The pneumatic clamping plate 212 clamps the molybdenum wire. At this time, the drive motor 307 outputs in the opposite direction, causing the pneumatic clamping plate 212 to drive the clamped molybdenum wire to move to the left, so that the molybdenum wire moves to the inside of the wire feeding roller 402 on the surface of the upper cantilever 206. At this time, the rotary motor 401 on the surface of the upper cantilever 206 outputs, so that the molybdenum wire passes through the wire drum guide wheel 208 on the surface of the upper cantilever 206 and the inner cavity of the first capillary alloy tube 209 to achieve automatic guidance of the molybdenum wire.

[0030] When the molybdenum wire needs to be wound onto the spool body 202, the control system triggers the electromagnetic brake disc 205 to be energized. The electromagnetic brake disc 205 generates magnetic force, causing it to close rapidly. The L-shaped structure of the L-shaped sleeve 204 ensures that it remains perpendicular to the axis of the spool body 202. The molybdenum wire is clamped between the L-shaped sleeve 204 and the electromagnetic brake disc 205. The clamping force is precisely adjusted by the current intensity to accommodate molybdenum wires with a diameter of 0.1-0.3mm, preventing the molybdenum wire from slipping out and preventing over-clamping that could cause deformation or breakage. Driven by the servo motor 203, the spool body 202 rotates. The molybdenum wire is wound around the spool body 202 with uniform tension. The axial positioning function of the L-shaped sleeve 204 ensures that the starting end of the winding is aligned and avoids winding deviation. By de-energizing the electromagnetic brake disc 205, the magnetic force disappears, and the electromagnetic brake disc 205 opens under the action of the elastic reset member, releasing the end of the molybdenum wire. The edge of the L-shaped sleeve 204 forms an auxiliary guide for the molybdenum wire, preventing the molybdenum wire from falling off the end of the spool body 202. When the wire is unwound to the preset length, the electromagnetic brake disc 205 can be energized again to clamp the molybdenum wire, realizing segmented control of the unwound process and preventing the molybdenum wire from loosening due to excessive inertia.

[0031] The servo motor 203, through closed-loop control, replaces the traditional three-phase motor, achieving precise control during wire winding and unwinding. If abnormalities such as molybdenum wire breakage or workpiece collision occur during unwinding, the servo motor 203 receives an emergency stop signal and immediately stops the rotation of the wire drum body 202 to prevent the molybdenum wire from becoming disordered due to inertia. When rapid wire feeding is required in the initial stage of unwinding, the servo motor 203 operates at a high speed of 50-100 r / min. When the molybdenum wire approaches the piercing position, it automatically switches to a low speed of 5-10 r / min. The smooth transition of speed avoids molybdenum wire vibration without impact current. When the wire is unwound to the required length for piercing, the servo motor 203 drives the wire drum body 202 to stop precisely at the preset position, ensuring that the end of the molybdenum wire is aligned with the piercing point, thus completing the unwinding positioning. This structure can handle emergency stops, positioning, and fast / slow speed switching functions.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A wire cutting device for rapid guiding and drilling of molybdenum wire, comprising a worktable body (1), characterized in that, A worktable feeding mechanism (5) is fixedly installed on the right side of the top of the worktable body (1). A wire feeding mechanism (2) is provided on the top of the worktable body (1). The wire feeding mechanism (2) includes a wire drum base (201). The wire drum base (201) is fixedly installed on the left side of the top of the worktable body (1). A servo motor (203) is fixedly installed on the rear side of the wire drum base (201). The output end of the servo motor (203) is fixedly connected to the wire drum body (202). Wire drum bodies (202) are fixedly installed on both the front and rear sides of the surface of the wire drum body (202). An L-shaped sleeve (204) is provided, and an electromagnetic brake disc (205) is fixedly installed on the surface of both L-shaped sleeves (204). An upper cantilever (206) and a lower cantilever (207) are provided on the top of the workbench body (1). A wire guide wheel (208) is movably connected to the left side of the surface of both the upper cantilever (206) and the lower cantilever (207). A first capillary alloy tube (209) is fixedly installed on the left side of both the upper cantilever (206) and the lower cantilever (207). Two first capillary alloy tubes (209) are provided. The left sides of both the upper and lower cantilever arms (206 and 207) face the main body (202). A guide wheel (210) is movably connected to the right side of both the upper and lower cantilever arms (207). A first micro cylinder (211) is provided on the front side of the upper cantilever arm (206). Pneumatic clamps (212) are provided on the top of the first micro cylinder (211) and the front side of the upper cantilever arm (206). A telescopic cylinder (213) is fixedly installed on the right side of the upper cantilever arm (206). A lifting plate (214) is fixedly installed at the bottom of the telescopic cylinder (213). A second capillary alloy tube (215) is fixedly installed on the inner surface of the lower arm (207). A steering alloy block (216) is fixedly installed on the right side of the surface of the lower arm (207). A second micro cylinder (217) is fixedly installed on both the upper and lower sides of the front side of the lower arm (207). An alloy guide block (218) is fixedly installed on the inner side of each of the two second micro cylinders (217). A high-frequency induction heat treatment straightening sleeve (219) is fixedly installed on the inner side of each of the two alloy guide blocks (218). An alloy guide block (220) is fixedly installed on the front side of the lower arm (207).

2. The wire cutting device for rapid guiding and drilling of molybdenum wire according to claim 1, characterized in that: The second capillary alloy tube (215) and the steering alloy block (216) are both in the same horizontal direction, and the inner dimensions of the second capillary alloy tube (215) and the steering alloy block (216) are both larger than the dimensions of the molybdenum wire.

3. The wire cutting device for rapid guiding and drilling of molybdenum wire according to claim 1, characterized in that: The inner sides of the two alloy guide blocks (218) are arc-shaped, and the size of the inner cavity of the two alloy guide blocks (218) is 1.5 times the size of the molybdenum wire.

4. The wire cutting device for rapid guiding and drilling of molybdenum wire according to claim 1, characterized in that: An adjustment assembly (3) is provided on the top of the workbench body (1). The adjustment assembly (3) includes a frame (301). The frame (301) is fixedly installed on the rear side of the top of the workbench body (1). A handwheel (302) is movably connected to the top of the frame (301). A screw (303) is fixedly installed at the bottom of the handwheel (302). A screw block (304) is threadedly connected to the surface of the screw (303). Mounting blocks (305) are fixedly installed on the front side of the screw block (304) and the front side of the frame (301). The upper cantilever (206) and the lower cantilever (207) are... The upper cantilever (206) is fixedly installed on the front side of the two mounting blocks (305). The surface of the upper cantilever (206) is provided with a slot (306). The drive motor (307) is fixedly installed on the left side of the inner cavity of the slot (306). The output end of the drive motor (307) is fixedly connected to a lead screw (308). The surface of the lead screw (308) is threadedly connected to a lead block (309). The first micro cylinder (211) is fixedly installed on the front side of the lead block (309). The two pneumatic clamps (212) are fixedly installed on the front side of the lead block (309) and the top of the first micro cylinder (211).

5. A wire cutting device for rapid guiding and drilling of molybdenum wire according to claim 4, characterized in that: The size of the inner cavity of the groove (306) matches the size of the wire block (309), and the wire block (309) is slidably connected in the inner cavity of the groove (306).

6. The wire cutting device for rapid guiding and drilling of molybdenum wire according to claim 4, characterized in that: Limiting grooves (310) are provided on both the left and right sides of the surface of the frame (301), and the left and right sides of the screw block (304) are slidably connected to the inner cavities of the two limiting grooves (310).

7. The wire cutting device for rapid guiding and drilling of molybdenum wire according to claim 1, characterized in that: The surfaces of the upper cantilever (206) and the lower cantilever (207) are each provided with a drive assembly (4). The drive assembly (4) includes a rotary motor (401) and a wire feeding roller (402). The four rotary motors (401) are fixedly installed on the left side of the surface of the upper cantilever (206) and the right side of the surface of the lower cantilever (207). The four wire feeding rollers (402) are fixedly connected to the output ends of the four rotary motors (401).

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