Integrated wire cutting mechanism and diamond wire cutting machine

Abstract

The utility model relates to diamond wire cutting machine technical field, concretely relates to integrated wire cutting mechanism and diamond wire cutting machine, integrated wire cutting mechanism includes integrated support frame, the front side of support frame is equipped with a plurality of line wheels, and the front side bottom of support frame is equipped with cutting notch for the workpiece to give way, the rear side of support frame is equipped with connecting portion for with the Z axis mechanism connection of cutting machine. The utility model adopts the support frame of entirety, and the driving line wheel, the guide line wheel, the tension line wheel are all placed in the front side, and the rear side of support frame is through the sliding block and Z axle slide rail sliding assembly, and the interval between two Z axle slide rails is smaller, and the structural stability is better, and the installation is relatively easy. Integrated wire cutting mechanism, as a whole is driven to lift by same Z axle screw nut mechanism, and is more difficult to deform in the use.

Description

Technical Field

[0001] This utility model relates to the technical field of diamond wire cutting machines, specifically to an integrated wire cutting mechanism and a diamond wire cutting machine. Background Technology

[0002] A diamond wire cutting machine is a high-precision industrial device that uses electroplated or resin-bonded diamond particles as a cutting tool. It is mainly used for cutting conductive and non-conductive hard and brittle materials with a Mohs hardness below 10, including semiconductors, ceramics, and glass. The diamond wire is driven by a wire wheel to perform unidirectional or reciprocating cyclic motion, with a pneumatic tensioning system and high-precision guide wheels maintaining cutting stability. During the cutting process, vertical cutting is predominant, requiring the wire to be fed vertically. The cutting mechanism, including the wire and wire wheel, is typically mounted as a whole on a gantry structure, as shown in the utility model patent CN 222372022 U, which discloses a tensioning mechanism for a circular wire cutting machine. The two parallel columns are spaced apart, with a large span between them. Initial installation requires ensuring the verticality and parallelism of the two columns, demanding high installation standards. After a period of use, the overall structure may deform, affecting cutting accuracy.

[0003] The crossbeam (Y-axis) of the gantry is usually driven synchronously by motors on the columns on both sides. If there are slight errors in the drive on both sides (such as servo response, backlash, guide rail friction, etc.), it is easy to cause the crossbeam to "twist", resulting in parallelism error, affecting the cutting accuracy, and placing high demands on the control system. Utility Model Content

[0004] The purpose of this invention is to provide an integrated wire cutting mechanism and a diamond wire cutting machine, which avoids potential problems by utilizing a new structural form.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The integrated wire EDM mechanism includes an integrated support frame. Several wire wheels are mounted on the front side of the support frame, and a cutting groove is provided at the bottom of the front side of the support frame to allow space for the workpiece. A connecting part is provided on the rear side of the support frame for connecting with the Z-axis mechanism of the cutting machine.

[0006] Furthermore, the front side of the support frame is provided with two downwardly extending spool mounting portions, and the cutting groove is formed between the two spool mounting portions.

[0007] Furthermore, the support frame has a rectangular hole that runs vertically through it. The support frame includes a front side plate, a rear side plate, a left side plate, and a right side plate. The two thread wheel mounting parts are located on the front side plate, and the connecting part is disposed on the rear side plate.

[0008] Furthermore, one of the two spool mounting parts is a drive spool mounting part and the other is a guide spool mounting part, and a tensioning spool mounting part is also provided above the cutting groove on the front side plate.

[0009] Furthermore, the connecting part includes a first set of connecting holes for transmission connection with the Z-axis lead screw and nut mechanism in the Z-axis mechanism; it also includes a second set of connecting holes for connection of the Z-axis slider.

[0010] Furthermore, both the left and right side plates are provided with weight reduction holes.

[0011] Furthermore, the support frame is a casting.

[0012] Furthermore, the tensioning pulley mounting part is provided with a tensioning pulley assembly and a tensioning mechanism. The tensioning pulley mounting part includes a movable hole that passes through the front side plate. The tensioning pulley assembly includes a tensioning pulley, a tensioning pulley shaft, and a tensioning pulley mounting plate. The tensioning pulley is mounted on the tensioning pulley shaft, and the tensioning pulley shaft is rotatably mounted on the tensioning pulley mounting plate. A vertically arranged first slide rail is mounted on the front side plate, and the tensioning pulley mounting plate is slidably mounted on the first slide rail. The tensioning mechanism includes a tensioning fixing plate, an electric push rod, a guide rod, a spring, a transmission block, and a drive block. The tensioning fixing plate is mounted on the rear side of the front side plate. The electric push rod and the guide rod are mounted on the tensioning fixing plate. The drive block is connected to the piston rod end of the electric push rod. The transmission block is slidably mounted on the guide rod. The spring is sleeved on the guide rod and abuts against the drive block and the transmission block. A transmission plate is also connected to the tensioning pulley mounting plate. The transmission plate passes through the movable hole, and the transmission plate and the transmission block are connected through a pressure sensor.

[0013] Furthermore, it includes a Z-axis mechanism and an integrated wire cutting mechanism. The integrated wire cutting mechanism includes an integrated support frame, with several wire wheels mounted on the front side of the support frame. A cutting groove is provided at the bottom of the front side of the support frame to allow space for the workpiece. A connecting part is provided on the rear side of the support frame for connection with the Z-axis mechanism.

[0014] Furthermore, the Z-axis mechanism includes a Z-axis lead screw and nut mechanism and a Z-axis slide rail. The connecting part includes a first set of connecting holes for transmission connection with the Z-axis lead screw and nut mechanism in the Z-axis mechanism. The connecting part also includes a second set of connecting holes for connecting the Z-axis slider. There are two Z-axis slide rails arranged in parallel. The Z-axis slider and the Z-axis slide rails are slidably assembled. The Z-axis slide rails are fixed on the vertical frame.

[0015] The beneficial effects of this utility model are: This utility model adopts an integrated support frame, with the drive sheave, guide sheave, and tension sheave all located on the front side. The rear side of the support frame is slidably assembled with the Z-axis slide rail via a slider. Clearly, the distance between the two Z-axis slide rails is smaller, resulting in better structural stability and easier installation compared to the larger span of two Z-axis slide rails in a gantry-type design. The integrated wire cutting mechanism, driven by a single Z-axis lead screw and nut mechanism, eliminates the synchronization issues of dual-drive systems on both sides, making it less prone to deformation during use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the diamond wire cutting machine of this utility model; Figure 2 This is a schematic diagram of the diamond wire cutting machine of this utility model after removing the outer shell; Figure 3 This is a structural diagram of an integrated wire cutting mechanism; Figure 4 This is a structural diagram of the support frame; Figure 5 This is a structural diagram of the Z-axis mechanism; Figure 6 This is a schematic diagram of the tensioning mechanism and the tensioning pulley.

[0017] 1. Outer shell; 2. Revolving door; 3. Water tank; 4. Frame; 41. Workpiece placement tray; 42. Y-axis bellows cover; 51. Vertical frame; 52. Z-axis bellows cover; 53. Z-axis lead screw and nut mechanism; 54. Z-axis slide rail; 55. Z-axis nut; 56. Z-axis slider; 6. Support frame; 61. Drive sheave mounting part; 62. Cutting groove; 63. Guide sheave mounting part; 64. Weight reduction hole; 65. Tensioning sheave mounting part; 66. Second set of connecting holes; 67. First set of connecting holes; 71. Drive sheave; 72. Guide sheave; 73. Tensioning sheave; 74. Tensioning sheave mounting plate; 75. Transmission plate; 76. First slide rail; 81. Electric push rod; 82. Drive block; 83. Spring; 84. Transmission block; 85. Guide rod; 86. Pressure sensor; 87. Tensioning fixing plate. Detailed Implementation 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0018] Embodiments of the diamond wire cutting machine of this utility model: like Figures 1 to 6As shown, the diamond wire cutting machine includes a worktable, a housing 1, and also includes a Y-axis mechanism, a Z-axis mechanism, and an integrated wire cutting mechanism. A rotating door 2 is located on the front of the housing 1, which can be rotated open to observe the internal processing or to install workpieces from the front. For details of the structure, please refer to the prior patent with authorization announcement number CN 222372023U. Doors are also provided on the left and right sides, which can also be opened from one side for installing workpieces or performing equipment maintenance. The housing 1 and the doors are not the innovation of this utility model; the innovation lies mainly in the internal mechanism design.

[0019] The Y-axis mechanism includes a Y-axis lead screw and nut mechanism for driving a workpiece placement tray 41, which is used to place workpieces. The workpiece placement tray 41 is connected to the Y-axis nut in the Y-axis lead screw and nut mechanism and moves along the Y-axis to adjust the position of the workpiece. A Y-axis bellows cover 42 is provided above the Y-axis lead screw in the Y-axis lead screw and nut mechanism, which extends and retracts as the workpiece placement tray 41 moves.

[0020] The worktable includes a frame 4, and the fixed part of the Y-axis lead screw and nut mechanism is connected to the frame 4. A water collection tank is located on the upper side of the frame 4 to collect cooling water, which is then drained into the water tank 3 below through a drain hole. The water tank 3 is equipped with casters at the bottom, allowing it to be moved to the space below the frame 4. A water pump is installed in the water tank 3, connected to a spray pipe. The pump delivers the cooling water from the water tank 3 to the wire cutting area to cool the diamond cutting wire.

[0021] like Figure 3 and 4 As shown, the integrated wire cutting mechanism includes an integrated support frame 6. Several wire wheels are mounted on the front side of the support frame 6. A cutting groove 62 is provided at the bottom of the front side of the support frame 6 for making way for the workpiece. Two downwardly extending wire wheel mounting parts are provided on the front side of the support frame 6, and the cutting groove 62 is formed between the two wire wheel mounting parts.

[0022] The support frame 6 is a casting, integrally formed, with good overall strength and not easily deformed. The support frame 6 has a rectangular hole that runs vertically through it. The support frame 6 includes a front side plate, a rear side plate, a left side plate, and a right side plate. The two sheave mounting parts are located on the front side plate. One of the two sheave mounting parts is a drive sheave mounting part 61, and the other is a guide sheave mounting part 63. The front side plate also has a tensioning sheave mounting part 65 above the cutting groove 62. All of them have machined flange surfaces for connection.

[0023] The drive sheave 71, guide sheave 72, and tension sheave 73 are arranged in a triangle and fitted with diamond ring wire. The cutting groove 62 is open from front to back, and together with the hollow internal structure of the support frame 6, it can make way for the workpiece below during the cutting process, realizing the top-to-bottom feeding of the diamond ring wire.

[0024] The support frame 6 has a connecting part on the rear side, which is located on the rear side plate.

[0025] like Figures 3 to 5 As shown, the connecting part includes a first set of connecting holes 67 for transmission connection with the Z-axis lead screw and nut mechanism 53 in the Z-axis mechanism; the Z-axis nut 55 in the Z-axis lead screw and nut mechanism 53 is bolted to the first set of connecting holes 67, and the support frame 6 can be moved in the Z-axis direction by the Z-axis lead screw and nut mechanism 53. To improve the connection accuracy, a mating surface is machined at the first set of connecting holes 67 to mate with the Z-axis nut 55.

[0026] The connecting part also includes a second set of connecting holes 66 for connecting Z-axis sliders 56. The second set of connecting holes 66 is divided into two units, spaced apart on the left and right, each connecting one Z-axis slider 56. The left and right Z-axis sliders 56 are slidably assembled with Z-axis slide rails 54. Two Z-axis slide rails 54 are provided and arranged parallel to each other. The Z-axis slide rails 54 are fixed to the vertical frame 51 by bolts, and the bottom of the vertical frame 51 is fixed to the machine frame 4. The first set of connecting holes 67 is located between the two units of the second set of connecting holes 66, i.e., in the middle position.

[0027] like Figure 2 As shown, the vertical frame 51 is equipped with a Z-axis bellows cover 52 to protect the Z-axis lead screw and nut mechanism 53.

[0028] like Figure 4 As shown, both the left and right side panels are provided with weight reduction holes 64, which reduce weight and save materials without affecting strength.

[0029] This utility model employs an integral support frame 6, with the drive sheave 71, guide sheave 72, and tension sheave 73 all positioned on the front side. The rear side of the support frame 6 is then slidably assembled with the Z-axis slide rail 54 via a Z-axis slider 56. Clearly, the distance between the two Z-axis slide rails 54 is relatively small, resulting in better structural stability and easier installation compared to the large span of the two Z-axis slide rails 54 in a gantry-type design. The integrated wire cutting mechanism, as a whole, is driven by a single Z-axis lead screw and nut mechanism 53 for lifting and lowering, eliminating the synchronization issues associated with dual-drive systems on both sides.

[0030] The drive pulley 71 is driven by a motor, which is fixed inside the support frame 6. The guide pulley 72 is a non-powered pulley.

[0031] The tensioning pulley mounting part 65 is equipped with a tensioning pulley assembly and a tensioning mechanism. The tensioning pulley mounting part 65 includes a movable hole that passes through the front side plate. The tensioning pulley assembly includes a tensioning pulley 73, a tensioning pulley shaft, and a tensioning pulley mounting plate 74. The tensioning pulley 73 is mounted on the tensioning pulley shaft, and the tensioning pulley shaft is rotatably mounted on the tensioning pulley mounting plate 74. A vertically arranged first slide rail 76 is mounted on the front side plate, and the tensioning pulley mounting plate 74 is slidably mounted on the first slide rail 76. During tension adjustment, the tensioning pulley mounting plate 74 can move up and down.

[0032] The tensioning mechanism includes a tensioning plate 87, an electric push rod 81, a guide rod 85, a spring 83, a transmission block 84, and a drive block 82. The tensioning plate 87 is fixed to the rear side of the front plate by bolts and is stationary. The electric push rod 81 and the guide rod 85 are mounted on the tensioning plate 87. One side of the drive block 82 is connected to the piston rod end of the electric push rod 81, and the other side of the drive block 82 is slidably mounted on the guide rod 85. The transmission block 84 is slidably mounted on the guide rod 85. The spring 83 is sleeved on the guide rod 85 and abuts against the drive block 82 and the transmission block 84. A transmission plate 75 is also connected to the tensioning reel mounting plate 74. The transmission plate 75 passes through the aforementioned movable hole and is connected to the transmission block 84 via a pressure sensor 86. The pressure sensor 86 is an S-shaped pressure-tension sensor. The piston rod end of the drive block 82 and the electric push rod 81 are preferably connected by a hinge. The drive block 82 is slidably mounted on the second slide rail, which is vertically set on the rear side of the tension fixing plate 87.

[0033] When using the tensioning mechanism: The electric actuator 81 is activated, causing the drive block 82 to move upward, compressing the spring 83. The transmission block 84 and transmission plate 75 also move upward, causing the tensioning reel mounting plate 74 to move upward, achieving the tensioning purpose. During adjustment, the pressure sensor 86 provides information on the pressure level, indirectly indicating the tension. The stroke of the electric actuator 81 can be controlled by the built-in program. When the pressure sensor 86 reaches the set threshold, the electric actuator 81 is de-energized and stops tensioning, while the compressed spring 83 maintains the tension. The real-time parameters of the pressure sensor 86 are also displayed on the equipment's screen, allowing for a clear understanding of the tension level and avoiding reliance on experienced workers for adjustments. When replacing the diamond toroidal wire later, reversing the electric actuator 81 releases the tension of the tensioning reel 73.

[0034] In this embodiment, three spools are mounted on the front side of the support frame; in other embodiments, four spools can also be mounted, which is equivalent to having an additional guide wheel, arranged in a rectangular pattern.

[0035] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An integrated wire cutting mechanism, characterized in that: It includes an integrated support frame, with several thread pulleys mounted on the front side of the support frame and a cutting groove at the bottom of the front side of the support frame to allow space for the workpiece; the rear side of the support frame has a connecting part for connecting with the Z-axis mechanism of the cutting machine.

2. The integrated wire cutting mechanism according to claim 1, characterized in that: The front side of the support frame is provided with two downwardly extending spool mounting parts, and the cutting groove is formed between the two spool mounting parts.

3. The integrated wire cutting mechanism according to claim 2, characterized in that: The support frame has a rectangular hole that runs vertically through it. The support frame includes a front side plate, a rear side plate, a left side plate, and a right side plate. The two thread wheel mounting parts are located on the front side plate, and the connecting part is located on the rear side plate.

4. The integrated wire cutting mechanism according to claim 3, characterized in that: One of the two spool mounting parts is a drive spool mounting part, and the other is a guide spool mounting part. The front side plate is also provided with a tensioning spool mounting part above the cutting groove.

5. The integrated wire cutting mechanism according to claim 3, characterized in that: The connecting part includes a first set of connecting holes for transmission connection with the Z-axis lead screw and nut mechanism in the Z-axis mechanism; it also includes a second set of connecting holes for connection of the Z-axis slider.

6. The integrated wire cutting mechanism according to claim 3, characterized in that: Weight reduction holes are provided on both the left and right side plates.

7. The integrated wire cutting mechanism according to claim 3, characterized in that: The support frame is a casting.

8. The integrated wire cutting mechanism according to claim 4, characterized in that: The tensioning pulley mounting part includes a tensioning pulley assembly and a tensioning mechanism. The tensioning pulley mounting part includes a movable hole that passes through the front side plate. The tensioning pulley assembly includes a tensioning pulley, a tensioning pulley shaft, and a tensioning pulley mounting plate. The tensioning pulley is mounted on the tensioning pulley shaft, and the tensioning pulley shaft is rotatably mounted on the tensioning pulley mounting plate. A vertically arranged first slide rail is mounted on the front side plate, and the tensioning pulley mounting plate is slidably mounted on the first slide rail. The tensioning mechanism includes a tensioning fixing plate, an electric push rod, a guide rod, a spring, a transmission block, and a drive block. The tensioning fixing plate is mounted on the rear side of the front side plate. The electric push rod and the guide rod are mounted on the tensioning fixing plate. The drive block is connected to the piston rod end of the electric push rod. The transmission block is slidably mounted on the guide rod. The spring is sleeved on the guide rod and abuts against the drive block and the transmission block. A transmission plate is also connected to the tensioning pulley mounting plate. The transmission plate passes through the movable hole, and the transmission plate and the transmission block are connected through a pressure sensor.

9. A diamond wire cutting machine, characterized in that: It includes a Z-axis mechanism and an integrated wire cutting mechanism. The integrated wire cutting mechanism includes an integrated support frame. Several wire wheels are mounted on the front side of the support frame. A cutting groove is provided at the bottom of the front side of the support frame to allow space for the workpiece. A connecting part is provided on the rear side of the support frame for connection with the Z-axis mechanism.

10. The diamond wire cutting machine according to claim 9, characterized in that: The Z-axis mechanism includes a Z-axis lead screw and nut mechanism and a Z-axis slide rail. The connecting part includes a first set of connecting holes for transmission connection with the Z-axis lead screw and nut mechanism in the Z-axis mechanism. The connecting part also includes a second set of connecting holes for connecting the Z-axis slider. There are two Z-axis slide rails arranged in parallel. The Z-axis slider and the Z-axis slide rails are slidably assembled. The Z-axis slide rail is fixed on the vertical frame.

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