A type of wire cutting machine

Abstract

This utility model relates to the field of wire cutting machine technology, and particularly to a tool wire cutting machine, including a worktable, a frame and a longitudinal displacement mechanism on the worktable, a wire frame on the frame, a molybdenum wire on the wire frame, a machine frame and a transverse displacement mechanism on the worktable, a horizontal sliding groove on one side wall of the machine frame, a bidirectional screw rotatably mounted in the sliding groove, a drive motor for driving the bidirectional screw to rotate on the machine frame, a clamp slide connected to both ends of the bidirectional screw, a mounting seat fixed to the clamp slide, a mounting groove on the mounting seat, a clamp block in the mounting groove, dovetail positioning blocks at the upper and lower ends of the clamp block, dovetail grooves at the upper and lower ends of the mounting groove, a V-shaped clamping surface on one side of the clamp block, and a planar clamping surface on the other side of the clamp block; this utility model, by setting the V-shaped clamping surface and the planar clamping surface on the clamp block, can accurately position rod-shaped tool blanks and sheet-shaped tool blanks respectively.

Description

Technical Field

[0001] This utility model relates to the field of wire cutting machine technology, and more specifically to a tool wire cutting machine. Background Technology

[0002] In the tool manufacturing industry, wire EDM machines are commonly used precision machining equipment, mainly used for cutting tool blanks into shape. Currently, existing wire EDM machines typically use the following method to fix the tool blank during cutting: the rod-shaped tool blank is placed inside a cylindrical fixing component, and the blank is secured by clamping bolts located on the side wall of the cylindrical fixing component, thereby keeping the blank stable during the cutting process for wire EDM machining.

[0003] However, the aforementioned fixing structure has significant limitations. Tool blanks are not limited to a single rod shape; they also include other shapes such as sheet-like shapes. For sheet-like tool blanks, the internal space of the cylindrical fixing member does not match the shape of the sheet-like blank, making effective positioning and fixing impossible. When machining tool blanks of different shapes (such as rods and sheets), operators need to frequently change fixing devices suitable for different blanks, which not only increases operational complexity but also reduces production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a wire cutting machine that overcomes the limitation of traditional cylindrical fasteners being only suitable for single rod-shaped blanks, eliminating the need for frequent replacement of the fastener and significantly improving the equipment's adaptability to blanks of different shapes.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A wire cutting machine includes a worktable, a vertical frame and a longitudinal displacement mechanism for driving the vertical frame to move longitudinally, a wire frame with molybdenum wire on the vertical frame, a machine frame and a transverse displacement mechanism for driving the machine frame to move laterally on the worktable, a horizontal sliding groove on one side wall of the machine frame, a bidirectional screw rotatably mounted in the sliding groove, a drive motor for driving the bidirectional screw to rotate on the machine frame, clamp slides threaded to both ends of the bidirectional screw, a mounting base fixedly connected to the clamp slide, a mounting groove on the mounting base, a clamp block in the mounting groove, dovetail positioning blocks at the upper and lower ends of the clamp block, dovetail grooves adapted to the dovetail positioning blocks at the upper and lower ends of the mounting groove, a V-shaped clamping surface on one side of the clamp block, and a flat clamping surface on the other side of the clamp block.

[0007] Furthermore, the worktable is provided with a longitudinal slide groove; the longitudinal displacement mechanism includes a longitudinal lead screw disposed in the longitudinal slide groove and a longitudinal lead screw motor for driving the longitudinal lead screw to rotate, a longitudinal slide block is threadedly connected to the longitudinal lead screw, and the upright is fixedly connected to the longitudinal slide block.

[0008] Furthermore, the lateral displacement mechanism includes a lateral lead screw mounted on the worktable and a lateral lead screw motor for driving the lateral lead screw to rotate. A first slide block is threaded onto the lateral lead screw. A slide rod is mounted on the worktable parallel to the lateral lead screw. A second slide block is slidably sleeved on the slide rod. The frame is fixedly connected to the first slide block and the second slide block.

[0009] Furthermore, a first magnetic block is embedded in the dovetail groove, and a second magnetic block is embedded in the dovetail positioning block.

[0010] Furthermore, a straight material placement groove is provided on the side wall of the frame, the straight material placement groove is perpendicular to the sliding groove, and the straight material placement groove is located between the two clamping blocks.

[0011] Furthermore, a concentric stepped circular groove is provided at the intersection of the straight material feeding groove and the sliding groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This application enables precise positioning of rod-shaped and sheet-shaped tool blanks by setting V-shaped clamping surfaces and planar clamping surfaces on the clamping block. This solves the limitation that traditional cylindrical fasteners are only suitable for single rod-shaped blanks, eliminates the need for frequent replacement of the fastener, and significantly improves the adaptability of the equipment to blanks of different shapes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0015] Figure 2 for Figure 1 Enlarged view of point A;

[0016] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0018] 1. Workbench; 101. Longitudinal slide rail; 2. Stand; 3. Wire frame; 4. Molybdenum wire; 5. Frame; 501. Sliding slide rail; 502. Straight-line material chute; 503. Concentric stepped circular groove; 6. Bidirectional screw; 7. Drive motor; 8. Mounting base; 801. Mounting slot; 802. Dovetail groove; 9. Fixture block; 91. Dovetail positioning block; 92. V-shaped clamping surface; 93. Flat clamping surface; 10. Fixture slide; 11. Longitudinal lead screw; 12. Longitudinal lead screw motor; 13. Longitudinal slide; 14. Transverse lead screw; 15. Transverse lead screw motor; 16. First slide; 17. Slide rod; 18. Second slide. Detailed Implementation

[0019] like Figures 1 to 4 As shown, a wire cutting machine includes a worktable 1, on which a support frame 2 and a longitudinal displacement mechanism for driving the support frame 2 to move longitudinally are provided. A wire frame 3 is provided on the support frame 2, and a molybdenum wire 4 is provided on the wire frame 3. The worktable 1 also includes a frame 5 and a lateral displacement mechanism for driving the frame 5 to move laterally. A sliding groove 501 is horizontally opened on one side wall of the frame 5, and a bidirectional screw 6 is rotatably disposed in the sliding groove 501. A drive mechanism for driving the bidirectional screw 6 to rotate is installed on the frame 5. The motor 7 is connected to the two ends of the bidirectional screw 6 by a clamp slide 10. The clamp slide 10 is fixedly connected to a mounting base 8. The mounting base 8 has a mounting groove 801. The mounting groove 801 has a clamp block 9. The upper and lower ends of the clamp block 9 have dovetail positioning blocks 91. The upper and lower ends of the mounting groove 801 have dovetail grooves 802 that are adapted to the dovetail positioning blocks 91. One side of the clamp block 9 has a V-shaped clamping surface 92. The other side of the clamp block 9 has a flat clamping surface 93.

[0020] The workbench 1 is provided with a longitudinal slide groove 101; the longitudinal displacement mechanism includes a longitudinal lead screw 11 disposed in the longitudinal slide groove 101 and a longitudinal lead screw motor 12 that drives the longitudinal lead screw 11 to rotate. A longitudinal slide block 13 is threadedly connected to the longitudinal lead screw 11, and the stand 2 is fixedly connected to the longitudinal slide block 13.

[0021] The lateral displacement mechanism includes a lateral lead screw 14 mounted on the worktable 1 and a lateral lead screw motor 15 that drives the lateral lead screw 14 to rotate. A first slide block 16 is threaded onto the lateral lead screw 14. A slide rod 17 is mounted on the worktable 1 and is parallel to the lateral lead screw 14. A second slide block 18 is slidably mounted on the slide rod 17. The frame 5 is fixedly connected to the first slide block 16 and the second slide block 18.

[0022] The dovetail groove 802 is embedded with a first magnetic block, and the dovetail positioning block 91 is embedded with a second magnetic block. The first magnetic block in the dovetail groove 802 and the second magnetic block in the dovetail positioning block 91 are attracted by magnetic force, providing additional axial locking force after the clamp block 9 is installed in place, preventing the clamp block 9 from loosening due to vibration during the cutting process. At the same time, the magnetic attraction makes it easy for operators to quickly install and remove the clamp block 9 without the need for additional fasteners, thus improving the efficiency of changeover.

[0023] A straight material placement groove 502 is provided on the side wall of the frame 5. The straight material placement groove 502 is perpendicular to the sliding groove 501 and is located between the two clamping blocks 9. Before clamping, the sheet-shaped tool blank is pre-placed in the straight material placement groove 502. The groove is used to initially position the blank, reducing manual alignment time. After cutting, the blank can be directly taken out from the straight material placement groove 502, avoiding interference with the clamping slide 10 and improving the convenience of loading and unloading.

[0024] A concentric stepped circular groove 503 is provided at the intersection of the straight material placement groove 502 and the sliding groove 501; the concentric stepped circular groove 503 provides multi-level positioning references at the intersection of the material placement groove 502 and the sliding groove 501, which can be used to fix the rod-shaped tool blank with cylindrical boss or stepped structure.

[0025] Working principle:

[0026] Select the clamping surface of the clamping block 9 according to the shape of the blank: use the V-shaped clamping surface 92 for rod-shaped blanks and the flat clamping surface 93 for sheet-shaped blanks. The clamping block 9 is quickly installed by the dovetail positioning block 91 and the dovetail groove 802 of the mounting base 8. The drive motor 7 drives the bidirectional screw 6 to rotate. Since the threads at both ends of the bidirectional screw turn in opposite directions, the two clamping slides 10 move closer or further apart synchronously. Adjust the distance between the two clamping blocks to be slightly greater than the length of the blank. Place the sheet-shaped blank in the straight material placement groove 502 and the rod-shaped blank in the concentric steps. The circular groove 503 is used for initial positioning. The clamping slide 10 is adjusted so that the clamping surfaces of the two clamping blocks 9 are in contact with both ends of the blank to complete the clamping. The longitudinal screw motor 12 drives the longitudinal screw 11 to rotate, which drives the upright 2 on the longitudinal slide 13 to move longitudinally and adjust the longitudinal position of the molybdenum wire 4. The transverse screw motor 15 drives the transverse screw 14 to rotate, which drives the frame 5 to move laterally through the first slide 16 and the second slide 18 to realize the horizontal feeding of the blank and complete the cutting in conjunction with the high-speed reciprocating motion of the molybdenum wire.

[0027] This utility model is compatible with both rod-shaped and sheet-shaped tool blanks. By switching the clamping surface and adjusting the spacing of the clamping block 9, there is no need to replace the overall fixing device.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A knife wire cutting machine, characterized by: The system includes a workbench (1), on which a support frame (2) and a longitudinal displacement mechanism for driving the support frame (2) to move longitudinally are provided. A wire frame (3) is provided on the support frame (2), and a molybdenum wire (4) is provided on the wire frame (3). The workbench (1) also includes a frame (5) and a transverse displacement mechanism for driving the frame (5) to move transversely. A sliding groove (501) is horizontally opened on one side wall of the frame (5), and a bidirectional screw (6) is rotatably arranged in the sliding groove (501). A drive motor (7) for driving the bidirectional screw (6) to rotate is installed on the frame (5). The two ends of the bidirectional screw (6) are threadedly connected to a clamp slide (10). A mounting base (8) is fixedly connected to the clamp slide (10). The mounting base (8) has a mounting groove (801). A clamp block (9) is provided in the mounting groove (801). A dovetail positioning block (91) is provided at the upper and lower ends of the clamp block (9). A dovetail groove (802) that matches the dovetail positioning block (91) is provided at the upper and lower ends of the mounting groove (801). A V-shaped clamping surface (92) is provided on one side of the clamp block (9). A flat clamping surface (93) is provided on the other side of the clamp block (9).

2. The knife wire saw machine of claim 1, wherein: The workbench (1) is provided with a longitudinal slide groove (101); the longitudinal displacement mechanism includes a longitudinal lead screw (11) provided in the longitudinal slide groove (101) and a longitudinal lead screw motor (12) for driving the longitudinal lead screw (11) to rotate. A longitudinal slide block (13) is threadedly connected to the longitudinal lead screw (11), and the stand (2) is fixedly connected to the longitudinal slide block (13).

3. The knife wire saw machine of claim 1, wherein: The lateral displacement mechanism includes a lateral lead screw (14) mounted on the worktable (1) and a lateral lead screw motor (15) that drives the lateral lead screw (14) to rotate. A first slide block (16) is threaded onto the lateral lead screw (14). A slide rod (17) is mounted on the worktable (1) and is parallel to the lateral lead screw (14). A second slide block (18) is slidably mounted on the slide rod (17). The frame (5) is fixedly connected to the first slide block (16) and the second slide block (18).

4. The knife wire saw machine of claim 1, wherein: The dovetail groove (802) is embedded with a first magnetic block, and the dovetail positioning block (91) is embedded with a second magnetic block.

5. The knife wire saw machine of claim 1, wherein: A straight material placement groove (502) is provided on the side wall of the frame (5). The straight material placement groove (502) is perpendicular to the sliding groove (501) and is located between the two clamp blocks (9).

6. The knife wire saw machine of claim 5, wherein: A concentric stepped circular groove (503) is provided at the intersection of the straight material trough (502) and the sliding chute (501).

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