Measuring mechanism and wire cutting device

Abstract

The utility model discloses a measuring mechanism and a wire cutting device, the size of a workpiece is fixed through an arranged measuring fixing plate, the distance between two cutting arms is adjusted to adapt to cutting pieces with different sizes, the number of counter weights is adjusted through wire electrode tension data detected by a tension sensor, and the measuring mechanism is used for measuring the size of the workpiece. The tension of the electrode wire is adjusted, the electrode wire is prevented from loosening, meanwhile, wire breakage caused by overlarge tension of the electrode wire can be prevented by reducing the number of counterweights, the horizontal position of the pulley can be adjusted through the additionally-arranged first adjusting threaded rod, the wire moving route of the electrode wire is changed, and therefore the tension of the electrode wire is adjusted. And when the situation of single-side wire loosening occurs, the electrode wire is cleaned through the second adjusting threaded rods which are symmetrically arranged, impurities adsorbed by the electrode wire during cutting are reduced, and the service life of the electrode wire is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting, in particular to a measuring mechanism and a wire cutting device. Background Art

[0002] A wire cutting device is a high-precision and highly automated metal processing equipment, which mainly consists of a workbench, a wire feeding mechanism, a pulse power supply, a control system and other parts. The workbench is used to fix the workpiece to be processed, and the wire feeding mechanism makes the electrode wire move reciprocally at high speed through precise control to generate electric sparks for cutting the material. With its characteristics of high precision, high efficiency and high flexibility, the wire cutting device is widely used in fields such as mold manufacturing and precision part processing, providing strong support for the development of modern manufacturing industry.

[0003] The measuring device and the wire cutting device form a close linkage relationship in industrial production. The wire cutting device is mainly used to process various workpieces with complex shapes and precision and small size. Its processing precision and efficiency directly affect the product quality and production efficiency, while the measuring device is responsible for real-time monitoring and recording various parameters in the wire cutting process, such as cutting speed, surface roughness, electrode wire loss, etc., to ensure that the processing process meets the preset standards.

[0004] However, after the existing wire cutting device is used for a long time, the situation of unilateral wire loosening may occur. This situation may be due to the relaxation of the electrode wire on one side of the wire feeding mechanism, resulting in a decrease in cutting precision, and even wire breakage may occur, seriously affecting the processing efficiency and product quality. To solve this problem, a measuring mechanism and a wire cutting device are proposed, which can help the staff detect the tension of the electrode wire in fact and adjust the tension of the electrode wire according to the measured tension value, improve the cutting precision and product quality. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the shortcoming of poor product precision caused by unilateral wire loosening in the existing wire cutting device, and to propose a measuring mechanism and a wire cutting device.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A measuring mechanism includes a workbench, and a plurality of support columns are symmetrically and fixedly connected to the outside of the workbench. An adjusting motor is fixedly connected to the outside of the workbench. An adjusting groove is opened on the outside of the workbench. Positioning grooves are symmetrically opened on the outside of the workbench. A measuring fixing plate is symmetrically and slidably connected to the inside of the two positioning grooves. A bidirectional adjusting threaded rod is commonly and threadedly connected between the two measuring fixing plates. The bidirectional adjusting threaded rod is rotatably connected to the inside of the adjusting groove, and the bidirectional adjusting threaded rod is fixedly connected to the adjusting motor;

[0008] The outside of the workbench is fixedly connected with fixing columns. The outside of the fixing columns is symmetrically provided with sliding grooves. The outside of the two sliding grooves is symmetrically and slidably connected with sliding sleeves. The outside of the sliding sleeves is fixedly connected with cutting arms. The inside of the cutting arms is fixedly connected with pressure plates. The outside of the pressure plates is fixedly connected with first adjusting springs. The outside of the first adjusting springs is fixedly connected with tension sensors.

[0009] A wire cutting device includes a wire drum. The inside of the cutting arms is symmetrically and fixedly connected with conductive wheels. The outside of the cutting arms is fixedly connected with wire outlets. The workbench is rotationally connected with the wire drum. The outside of the fixing columns is provided with an adjusting assembly. The adjusting assembly includes a counterweight and a pulley. The inside of the cutting arms is provided with a cleaning assembly. The cleaning assembly includes symmetrically arranged cleaning plates.

[0010] The outside of the workbench is symmetrically and fixedly connected with a plurality of motor support platforms. The outside of the plurality of motor support platforms is fixedly connected with a protection plate. The outside of the protection plate is symmetrically provided with motor sliding grooves. The outside of the two motor sliding grooves is symmetrically and slidably connected with limiting plates. The outside of the motor sliding grooves is symmetrically and fixedly connected with multiple sets of disassembly blocks. The multiple disassembly blocks are all fixedly connected with the limiting plates. The wire drum is rotationally connected between the two limiting plates. The outside of the protection plate is fixedly connected with a wire drum motor. The output end of the wire drum motor is fixedly connected with the wire drum.

[0011] The outside of the fixing column is fixedly connected with a sliding block. The outside of the sliding block is slidably connected with an adjusting arm. The outside of the sliding block is threadedly connected with a first adjusting threaded rod. The first adjusting threaded rod is rotationally connected with the adjusting arm.

[0012] The outside of the adjusting arm is fixedly connected with an adjusting block. The outside of the adjusting block is symmetrically and fixedly connected with first adjusting sliding columns. The outside of the two first adjusting sliding columns is jointly slidably connected with a sliding block. A sliding rod is slidably connected between the adjusting block and the sliding block. One end of the sliding rod extending outside the adjusting block is slidably connected with multiple counterweights. The outside of the sliding block is fixedly connected with a second adjusting spring. The inside of the second adjusting spring is in contact with the sliding rod. Multiple pulleys are fixedly connected to the outside of both the sliding block and the adjusting block.

[0013] The inside of the cutting arms is symmetrically and slidably connected with two groups of second adjusting sliding columns. The outside of the two second adjusting sliding columns is jointly fixedly connected with the cleaning plates. The outside of the cutting arms is symmetrically threadedly connected with second adjusting threaded rods. The second adjusting threaded rods are rotationally connected with the cleaning plates.

[0014] The present utility model has the following beneficial effects:

[0015] 1. In the present utility model, when cutting a workpiece, the size of the workpiece is fixed by the provided measuring and fixing plate. The distance between the two cutting arms is adjusted to adapt to cutting pieces of different sizes. The number of counterweights is adjusted according to the electrode wire tension data detected by the tension sensor, so as to adjust the tension of the electrode wire, prevent the electrode wire from becoming slack. At the same time, by reducing the number of counterweights, it is possible to prevent the electrode wire tension from being too large and causing wire breakage.

[0016] 2. In the present utility model, the horizontal position of the pulley can be adjusted by the provided first adjusting screw rod, changing the wire path of the electrode wire, thereby adjusting the tension of the electrode wire. When there is a situation of unilateral wire slack, the electrode wire is cleaned by the symmetrically arranged second adjusting screw rod, reducing the impurities adsorbed by the electrode wire during cutting and extending the service life of the electrode wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 9 is a schematic diagram of the first overall structure of a measuring mechanism and a wire cutting device proposed by the present utility model;

[0018] Figure 2 FIG. 13 is a schematic diagram of the second overall structure in the present utility model;

[0019] Figure 3 FIG. 17 is a schematic diagram of the first partial structure in the present utility model;

[0020] Figure 4 FIG. 21 is a schematic diagram of the second partial structure in the present utility model;

[0021] Figure 5 FIG. Figure 1 FIG. 27 is an enlarged schematic diagram of the structure at A in FIG.

[0022] Figure 6 FIG. Figure 2 FIG. 33 is an enlarged schematic diagram of the structure at B in FIG.

[0023] Figure 7 FIG. Figure 3 FIG. 39 is an enlarged schematic diagram of the structure at C in FIG.

[0024] Figure 8 FIG. Figure 4 FIG. 45 is an enlarged schematic diagram of the structure at D in FIG.

[0025] In the figure: 1, workbench; 2, support column; 3, protection plate; 4, sliding sleeve; 5, fixed column; 6, sliding groove; 7, cutting arm; 8, motor support platform; 9, wire outlet 9; 10, conductive wheel; 11, motor sliding groove; 12, wire spool; 13, limit plate; 14, wire spool motor; 15, first adjusting screw rod; 16, adjusting block; 17, adjusting arm; 18, sliding block; 19, first adjusting sliding column; 20, pulley; 21, counterweight; 22, sliding rod; 23, second adjusting sliding column; 24, second adjusting screw rod; 25, cleaning plate; 26, pressure plate; 27, first adjusting spring; 28, tension sensor; 29, second adjusting spring; 30, measuring fixed plate; 31, bidirectional adjusting screw rod; 32, adjusting motor; 33, positioning groove; 34, adjusting groove; 35, disassembly block. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1

[0028] As Figures 1-8 shown, a measuring mechanism proposed by the present invention includes a workbench 1. A plurality of support columns 2 are symmetrically and fixedly connected to the outside of the workbench 1. An adjusting motor 32 is fixedly connected to the outside of the workbench 1. An adjusting groove 34 is opened on the outside of the workbench 1. Positioning grooves 33 are symmetrically opened on the outside of the workbench 1. A measuring fixed plate 30 is symmetrically and slidably connected to the inside of the two positioning grooves 33. A bidirectional adjusting screw rod 31 is commonly and threadedly connected between the two measuring fixed plates 30. The bidirectional adjusting screw rod 31 is rotatably connected to the inside of the adjusting groove 34. The bidirectional adjusting screw rod 31 is fixedly connected to the adjusting motor 32;

[0029] A fixed column 5 is fixedly connected to the outside of the workbench 1. Sliding grooves 6 are symmetrically opened on the outside of the fixed column 5. A sliding sleeve 4 is symmetrically and slidably connected to the outside of the two sliding grooves 6. A cutting arm 7 is fixedly connected to the outside of the sliding sleeve 4. A pressure plate 26 is fixedly connected to the inside of the cutting arm 7. A first adjusting spring 27 is fixedly connected to the outside of the pressure plate 26. A tension sensor 28 is fixedly connected to the outside of the first adjusting spring 27.

[0030] In this embodiment, during the operation of the device, the operator leads the electrode wire out from the outside of the wire spool 12, rotates the first adjusting screw rod 15, the rotation of the first adjusting screw rod 15 drives the movement of the adjusting arm 17, adjusts the horizontal position of the adjusting arm 17, so that the adjusting block 16 is at the central position of the electrode wire on the wire spool 12. Subsequently, the electrode wire passes through the provided pulley 20 and is connected in a V shape inside the pulley 20. Then, through the symmetrically arranged conductive wheels 10, it passes through the provided tension sensor 28 and the second adjusting screw rod 24, and finally is led out from the wire outlet 9. The same operation is carried out, introduced from the inside of the other cutting arm 7 provided, and finally fixed on the wire spool 12. According to the size of the cutting piece, the rotation of the adjusting motor 32 is controlled. The rotation of the adjusting motor 32 drives the rotation of the bidirectional adjusting screw rod 31, and the rotation of the bidirectional adjusting screw rod 31 drives the two measuring fixing plates 30 to move in opposite directions, so as to fix the cutting piece. Subsequently, the distance between the two cutting arms 7 is adjusted to achieve the best cutting effect. When the electrode wire is working, the operator can judge the tension of the electrode wire by observing the data transmitted by the tension sensor 28. According to the tension of the electrode wire, the number of counterweights 21 can be selectively adjusted.

[0031] Embodiment 2

[0032] As Figures 1-8 shown, based on Embodiment 1, a wire cutting device includes a wire spool 12, conductive wheels 10 are symmetrically and fixedly connected to the inside of the cutting arm 7, a wire outlet 9 is fixedly connected to the outside of the cutting arm 7, the workbench 1 is rotationally connected to the wire spool 12, an adjusting assembly is arranged outside the fixed column 5, the adjusting assembly includes a counterweight 21 and a pulley 20, a cleaning assembly is arranged inside the cutting arm 7, and the cleaning assembly includes symmetrically arranged cleaning plates 25; a plurality of motor support platforms 8 are symmetrically and fixedly connected to the outside of the workbench 1, a protection plate 3 is fixedly connected to the outside of the plurality of motor support platforms 8, motor sliding grooves 11 are symmetrically opened on the outside of the protection plate 3, limiting plates 13 are symmetrically slidably connected to the outside of the two motor sliding grooves 11, multiple disassembly blocks 35 are symmetrically fixedly connected to the outside of the motor sliding grooves 11, and the multiple disassembly blocks 35 are all fixedly connected to the limiting plates 13. The wire spool 12 is rotationally connected between the two limiting plates 13, a wire spool motor 14 is fixedly connected to the outside of the protection plate 3, and the output end of the wire spool motor 14 is fixedly connected to the wire spool 12;

[0033] A sliding block 18 is fixedly connected to the outside of the fixed column 5, an adjusting arm 17 is slidably connected to the outside of the sliding block 18, a first adjusting screw rod 15 is threadedly connected to the outside of the sliding block 18, and the first adjusting screw rod 15 is rotationally connected to the adjusting arm 17;

[0034] An adjustment block 16 is fixedly connected to the outside of the adjustment arm 17. First adjustment sliding columns 19 are symmetrically and fixedly connected to the outside of the adjustment block 16. A sliding block 18 is slidably connected to the outside of the two first adjustment sliding columns 19. A sliding rod 22 is slidably connected between the adjustment block 16 and the sliding block 18. One end of the sliding rod 22 extending outside the adjustment block 16 is slidably connected with a plurality of counterweights 21. A second adjustment spring 29 is fixedly connected to the outside of the sliding block 18. The inner side of the second adjustment spring 29 is in contact with the sliding rod 22. A plurality of pulleys 20 are fixedly connected to the outside of both the sliding block 18 and the adjustment block 16;

[0035] Two groups of second adjustment sliding columns 23 are symmetrically and slidably connected to the inner side of the cutting arm 7. The outside of the two second adjustment sliding columns 23 is fixedly connected to the cleaning plate 25 together. Second adjustment threaded rods 24 are symmetrically and threadedly connected to the outside of the cutting arm 7. The second adjustment threaded rods 24 are rotatably connected to the cleaning plate 25.

[0036] In this embodiment, during the working process of the electrode wire, when the tension of the electrode wire on the pulley 20 is too large, it will pull the pulley 20 arranged outside the first adjustment sliding column 19 to move towards the direction close to the adjustment block 16. Therefore, the number of counterweights 21 can be reduced to reduce the tension of the electrode wire and prevent wire breakage. In addition, the provided second adjustment spring 29 can also play a buffering role during the upward movement of the adjustment block 16 to avoid excessive movement amplitude. When the tension of the electrode wire is too small, the number of counterweights 21 can be increased. At this time, the sliding block 18 moves away from the adjustment block 16, making the tension of the electrode wire larger and preventing wire loosening. When there are attached impurities on the surface of the electrode wire, it will increase the wear of the electrode wire on the wire drum 12. After a long time, it will also easily cause wire loosening of the electrode wire. Therefore, the staff can rotate the symmetrically arranged second adjustment threaded rods 24. The rotation of the second adjustment threaded rods 24 drives the movement of the cleaning plate 25. Therefore, the gap between the symmetrically arranged cleaning plates 25 is adjusted to clean the surface of the electrode wire and extend the service life of the electrode wire.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A measuring mechanism, comprising a workbench (1), characterized in that: The outside of the workbench (1) is symmetrically fixedly connected with a plurality of support columns (2), the outside of the workbench (1) is fixedly connected with an adjustment motor (32), the outside of the workbench (1) is provided with an adjustment slot (34), the outside of the workbench (1) is symmetrically provided with a positioning slot (33), the inner sides of two positioning slots (33) are symmetrically slidably connected with a measurement fixing plate (30), the two measurement fixing plates (30) are threadedly connected with a bidirectional adjustment threaded rod (31), the bidirectional adjustment threaded rod (31) is rotatably connected to the inner side of the adjustment slot (34), and the bidirectional adjustment threaded rod (31) is fixedly connected to the adjustment motor (32); The workbench (1) is fixedly connected to a fixed column (5) on the outside, and a sliding groove (6) is symmetrically provided on the outside of the fixed column (5). The outsides of the two sliding grooves (6) are symmetrically slidably connected to a sliding sleeve (4). The outside of the sliding sleeve (4) is fixedly connected to a cutting arm (7). The inner side of the cutting arm (7) is fixedly connected to a pressure plate (26). The outside of the pressure plate (26) is fixedly connected to a first adjusting spring (27). The outside of the first adjusting spring (27) is fixedly connected to a tension sensor (28).

2. A wire cutting device, comprising a measuring mechanism according to claim 1, comprising a wire drum (12), characterized in that: The inner side of the cutting arm (7) is symmetrically fixedly connected with a conductive wheel (10), the outer side of the cutting arm (7) is fixedly connected with a wire outlet (9), the workbench (1) is rotatably connected with the wire reel (12), the outer side of the fixed column (5) is provided with an adjustment component, the adjustment component includes a counterweight (21) and a pulley (20), and the inner side of the cutting arm (7) is provided with a cleaning component, the cleaning component includes a symmetrically arranged cleaning plate (25).

3. A wire cutting device according to claim 2, characterized in that: The outside of the workbench (1) is symmetrically fixedly connected with a plurality of motor support platforms (8), and the outsides of the plurality of motor support platforms (8) are commonly fixedly connected with a protection plate (3). The outside of the protection plate (3) is symmetrically provided with a motor sliding groove (11), and the outsides of two motor sliding grooves (11) are symmetrically slidably connected with a limit plate (13). The outside of the motor sliding groove (11) is symmetrically fixedly connected with a plurality of groups of disassembly blocks (35), and the plurality of disassembly blocks (35) are all fixedly connected with the limit plate (13). The two limit plates (13) are commonly rotatably connected with the wire reel (12). The outside of the protection plate (3) is fixedly connected with a wire reel motor (14), and the output end of the wire reel motor (14) is fixedly connected with the wire reel (12).

4. A wire cutting device according to claim 2, characterized in that: The exterior of the fixed column (5) is fixedly connected to a sliding block (18), the exterior of the sliding block (18) is slidably connected to an adjusting arm (17), the exterior of the sliding block (18) is threadedly connected to a first adjusting threaded rod (15), and the first adjusting threaded rod (15) is rotatably connected to the adjusting arm (17).

5. A wire cutting device according to claim 4, characterized in that: The outside of the adjusting arm (17) is fixedly connected to an adjusting block (16), the outside of the adjusting block (16) is symmetrically fixedly connected to a first adjusting sliding column (19), the outsides of the two first adjusting sliding columns (19) are slidably connected to a sliding block (18), the adjusting block (16) and the sliding block (18) are slidably connected to a sliding rod (22), one end of the sliding rod (22) extending to the outside of the adjusting block (16) is slidably connected to a plurality of counterweights (21), the outside of the sliding block (18) is fixedly connected to a second adjusting spring (29), the inner side of the second adjusting spring (29) is in contact with the sliding rod (22), and the outsides of the sliding block (18) and the adjusting block (16) are both fixedly connected to a plurality of pulleys (20).

6. A wire cutting device according to claim 2, characterized in that: The inner side of the cutting arm (7) is symmetrically slidably connected with two groups of second adjustment sliding columns (23), the outer sides of the two second adjustment sliding columns (23) are fixedly connected to the cleaning plate (25), and the outer side of the cutting arm (7) is symmetrically threadedly connected with a second adjustment threaded rod (24), and the second adjustment threaded rod (24) is rotatably connected to the cleaning plate (25).

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