Automatic wire tensioning frame for fast wire-cut electrical discharge machining

Abstract

The utility model relates to cutting machine tight silk technical field, and disclose a kind of fast wire-cutting electrical discharge wire cutting machine automatic silk frame, including fixed frame, the inside of fixed frame is provided with adjusting assembly, the side fixed connection of adjusting assembly has two groups of fixed frame, the top surface of two groups of fixed frame is all fixedly connected with clamping assembly, adjusting assembly includes the two-way threaded rod setting in fixed frame inside.The fast wire-cutting electrical discharge wire cutting machine automatic silk frame, by the setting of adjusting assembly, in use, the spark wire is wound on the roller, servo motor is started, servo motor rotates and drives two-way threaded rod to rotate, the relative motion of two-way threaded rod rotation makes sliding block on two-way threaded rod, the distance between two groups of rollers can be adjusted, when the distance of roller is adjusted, the tension of spark wire on the roller is adjusted, ensure that electrode wire always maintains proper tension in processing, to improve processing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of wire tensioning technology for cutting machines, and in particular to an automatic wire tensioning frame for a fast wire EDM machine. Background Technology

[0002] Fast wire EDM machines are commonly used precision machining equipment in industries such as mold manufacturing and machining. They utilize the electro-erosion phenomenon generated by pulsed discharge between the electrode wire and the workpiece to cut conductive materials, enabling the production of parts with various complex shapes, such as cavities in precision molds and irregularly shaped parts. In the mold manufacturing industry, fast wire EDM machines can precisely machine key mold components, ensuring mold accuracy and quality, and playing a crucial role in improving mold production efficiency and service life. In the machining field, for parts with high hardness, complex shapes, and difficult-to-process using conventional methods, fast wire EDM machines offer unique advantages, achieving efficient and precise machining to meet the diverse needs of different industries for parts processing.

[0003] In traditional fast wire EDM machines, the wire may become loose during cutting due to differences in wire specifications and materials, which can affect the processing quality of the machine. Therefore, an automatic wire tensioner for fast wire EDM machines is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem solved by this utility model is to provide an automatic wire tensioner for a fast wire EDM machine that is highly practical, easy to operate, and has a simple structure. This solves the problem mentioned in the background art that in traditional fast wire EDM machines, the wire may become loose during cutting due to differences in wire specifications and materials, which affects the processing quality of the device.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic wire tensioning frame for a fast wire EDM machine, comprising a fixed frame, an adjusting component inside the fixed frame, two sets of fixed frames fixedly connected to one side of the adjusting component, and a snap-fit ​​component fixedly connected to the top surface of each of the two sets of fixed frames. The adjusting component includes a bidirectional threaded rod disposed inside the fixed frame, two sets of sleeves fixedly connected to the outer side of the bidirectional threaded rod, a compression spring sleeved on the outer side of each of the two sets of sleeves, and a sliding block fixedly connected to the other end of each of the two sets of compression springs. A servo motor is fixedly connected to one end of the bidirectional threaded rod. The two sets of snap-fit ​​components include connecting springs connected to the top surface of the two sets of fixed frames, insert rods sleeved inside each of the two sets of connecting springs, a limit block fixedly connected to one end of each of the two sets of insert rods, and a pull plate fixedly connected to one side of each of the two sets of limit blocks.

[0008] As a further embodiment of this utility model, both sets of fixed frames are fixedly connected to one side of the two sets of sliding blocks, and connecting plates are inserted into the interior of both sets of fixed frames. The connecting plates serve to install the rollers.

[0009] As a further embodiment of this utility model, a fixed rod is rotatably connected to one side of each of the two sets of connecting plates, and a roller is fixedly connected to one end of each of the two sets of fixed rods. The rollers are used to hold the thread and adjust its tension.

[0010] As a further embodiment of this utility model, a motor housing is fixedly connected to one side of the fixing frame, and the servo motor is installed inside the motor housing. The motor housing serves to store the servo motor.

[0011] As a further embodiment of this utility model, an extension frame is fixedly connected to the center of the top surface of the fixed frame, and a lead screw is provided inside the extension frame. One end of the lead screw is fixedly connected to a rotating motor, which drives the lead screw to rotate.

[0012] As a further embodiment of this utility model, a movable block is threadedly connected to the outer side of the lead screw, and a rotating wheel is rotatably connected to one side of the movable block. The movable block serves to drive the rotating wheel to move.

[0013] As a further embodiment of this utility model, two sets of positioning blocks are fixedly connected to the top surface of the fixing frame. The two sets of positioning blocks are threaded with mounting screws inside, which serve to fix the device.

[0014] (III) Beneficial Effects

[0015] This utility model provides an automatic wire tensioning frame for a fast wire EDM machine, which has the following advantages:

[0016] 1. This fast-wire EDM machine features an automatic wire tensioner. By adjusting the settings of the components, the EDM wire is wound onto the rollers during use. The servo motor is then started, and its rotation drives the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod causes the sliding block to move relative to the rod, allowing adjustment of the distance between the two sets of rollers. Adjusting the roller distance adjusts the tension of the EDM wire on the rollers, ensuring that the electrode wire maintains appropriate tension throughout the processing and improving processing accuracy.

[0017] 2. The automatic wire tensioning frame of this fast wire EDM machine, through the setting of the snap-fit ​​component, allows the connecting spring to be stretched when the pull plate is pulled during use. The plug rod is then pulled out from the inside of the connecting plate, allowing the connecting plate to be separated from the fixed frame. This enables the rollers to be replaced, preventing wear on the roller surface and thus avoiding damage to the wire. This ensures good processing results under various processing conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

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

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

[0021] Figure 4 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model.

[0022] In the diagram: 1. Fixed frame; 2. Adjustment assembly; 201. Two-way threaded rod; 202. Sleeve; 203. Compression spring; 204. Sliding block; 205. Servo motor; 3. Fixed frame; 4. Snap-fit ​​assembly; 401. Connecting spring; 402. Insertion rod; 403. Limiting block; 404. Pull plate; 5. Connecting plate; 6. Fixed rod; 7. Roller; 8. Motor box; 9. Extension frame; 10. Lead screw; 11. Rotating motor; 12. Rotating wheel; 13. Positioning block; 14. Mounting screw; 15. Moving block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: an automatic wire tensioning frame for a fast wire EDM machine, including a fixed frame 1. An adjusting component 2 is installed inside the fixed frame 1 to adjust the tension of the device. Two sets of fixed frames 3 are fixedly connected to one side of the adjusting component 2, and a snap-fit ​​component 4 is fixedly connected to the top surface of each of the two sets of fixed frames 3. The snap-fit ​​component 4 allows for the replacement of rollers 7. The adjusting component 2 includes a bidirectional threaded rod 201 installed inside the fixed frame 1, and the outer side of the bidirectional threaded rod 201 is fixedly connected to... There are two sets of sleeves 202, and a compression spring 203 is sleeved on the outer side of each set of sleeves 202. A sliding block 204 is fixedly connected to the other end of each set of compression springs 203. A servo motor 205 is fixedly connected to one end of a bidirectional threaded rod 201. The two sets of snap-fit ​​components 4 include connecting springs 401 connected to the top surface of the two sets of fixed frames 3. Insertion rods 402 are sleeved inside each set of connecting springs 401. A limit block 403 is fixedly connected to one end of each set of insertion rods 402. A pull plate 404 is fixedly connected to one side of each set of limit blocks 403.

[0025] Both sets of fixed frames 3 are fixedly connected to one side of the two sets of sliding blocks 204. Both sets of fixed frames 3 have connecting plates 5 inserted inside. The connecting plates 5 are used to install the rollers 7.

[0026] One side of each of the two sets of connecting plates 5 is rotatably connected to a fixed rod 6, and one end of each of the two sets of fixed rods 6 is fixedly connected to a roller 7. The roller 7 is used to hold the thread and adjust its tension.

[0027] A motor housing 8 is fixedly connected to one side of the mounting bracket 1. The servo motor 205 is installed inside the motor housing 8. The motor housing 8 serves to store the servo motor 205.

[0028] An extension frame 9 is fixedly connected to the middle of the top surface of the fixed frame 1. A lead screw 10 is installed inside the extension frame 9. A rotary motor 11 is fixedly connected to one end of the lead screw 10. The rotary motor 11 drives the lead screw 10 to rotate.

[0029] A movable block 15 is threadedly connected to the outer side of the lead screw 10. A rotating wheel 12 is rotatably connected to one side of the movable block 15. The movable block 15 drives the rotating wheel 12 to move.

[0030] Two sets of positioning blocks 13 are fixedly connected to the top surface of the fixed frame 1. The two sets of positioning blocks 13 are threaded with mounting screws 14 inside. The mounting screws 14 are used to fix the device.

[0031] In this invention, the working steps of the device are as follows:

[0032] First step: When using, wind the EDM wire onto the roller 7, start the servo motor 205, the servo motor 205 rotates and drives the bidirectional threaded rod 201 to rotate. The rotation of the bidirectional threaded rod 201 causes the sliding block 204 to move relative to the bidirectional threaded rod 201, which can adjust the distance between the two sets of rollers 7. When the distance of the rollers 7 is adjusted, the tension of the EDM wire on the rollers 7 is adjusted, ensuring that the electrode wire always maintains appropriate tension during the processing, thereby improving the processing accuracy.

[0033] The second step: When in use, pull the pull plate 404. The movement of the pull plate 404 causes the connecting spring 401 to be in a stretched state, and the plug rod 402 is pulled out from the inside of the connecting plate 5, so that the connecting plate 5 can be separated from the fixed frame 3. This allows the roller 7 to be replaced, avoiding wear on the surface of the roller 7 and damage to the wire, thus ensuring good processing results under various processing conditions.

[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic wire tensioning frame for a fast wire EDM machine, comprising a fixing frame (1), characterized in that: The fixing frame (1) is equipped with an adjustment component (2) inside. Two sets of fixing frames (3) are fixedly connected to one side of the adjustment component (2). The top surfaces of the two sets of fixing frames (3) are fixedly connected with snap-fit ​​components (4). The adjustment assembly (2) includes a bidirectional threaded rod (201) disposed inside the fixed frame (1). Two sets of sleeves (202) are fixedly connected to the outer side of the bidirectional threaded rod (201). A compression spring (203) is sleeved on the outer side of each of the two sets of sleeves (202). A sliding block (204) is fixedly connected to the other end of each of the two sets of compression springs (203). A servo motor (205) is fixedly connected to one end of the bidirectional threaded rod (201). The two sets of snap-fit ​​components (4) include connecting springs (401) connected to the top surfaces of the two sets of fixed frames (3). Each of the two sets of connecting springs (401) has a plug rod (402) sleeved inside. One end of each of the two sets of plug rods (402) is fixedly connected to a limit block (403). One side of each of the two sets of limit blocks (403) is fixedly connected to a pull plate (404).

2. The automatic wire tensioning frame for a fast wire EDM machine according to claim 1, characterized in that: Both sets of fixed frames (3) are fixedly connected to one side of the two sets of sliding blocks (204), and connecting plates (5) are inserted into the interior of both sets of fixed frames (3).

3. The automatic wire tensioning frame for a fast wire EDM machine according to claim 2, characterized in that: One side of each of the two sets of connecting plates (5) is rotatably connected to a fixing rod (6), and one end of each of the two sets of fixing rods (6) is fixedly connected to a roller (7).

4. The automatic wire tensioning frame for a fast wire EDM machine according to claim 1, characterized in that: A motor housing (8) is fixedly connected to one side of the mounting bracket (1), and the servo motor (205) is located inside the motor housing (8).

5. The automatic wire tensioning frame for a fast wire EDM machine according to claim 1, characterized in that: An extension frame (9) is fixedly connected to the middle of the top surface of the fixed frame (1). A lead screw (10) is provided inside the extension frame (9). A rotating motor (11) is fixedly connected to one end of the lead screw (10).

6. The automatic wire tensioning frame for a fast wire EDM machine according to claim 5, characterized in that: The lead screw (10) is threadedly connected to a moving block (15), and a rotating wheel (12) is rotatably connected to one side of the moving block (15).

7. The automatic wire tensioning frame for a fast wire EDM machine according to claim 1, characterized in that: The top surface of the fixed frame (1) is fixedly connected with two sets of positioning blocks (13), and the interior of the two sets of positioning blocks (13) is threaded with mounting screws (14).

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