Wire cutting size self-adaptive tool clamp

Abstract

The utility model relates to the technical field of clamps, and discloses a linear cutting size self-adaption tool clamp which comprises a fixing frame and a cutting mechanism, fixing frames are symmetrically arranged in the fixing frame, and electric telescopic cylinders are fixedly connected to the upper surfaces of the fixing frames; the output end of the electric telescopic cylinder is fixedly connected with a pressing plate used for pressing a workpiece, and the inner side wall of the fixing frame is fixedly connected with two supporting plates used for supporting the workpiece. A workpiece is pressed through the electric telescopic cylinder and the pressing plate, the limiting rod guarantees that the pressing plate vertically presses downwards, the clamping force is uniform and stable, displacement and deformation of the workpiece in the clamping and machining process are effectively avoided, the machining precision and the product quality are improved, the screw is driven to rotate through the driving motor, and therefore the fixing frame can be driven to move, and the machining efficiency is improved. And the clamping position can be flexibly adjusted according to the size of the workpiece, the clamping requirements of workpieces of different sizes are met, and the universality of the tool clamp is improved.

Description

Technical Field

[0001] This application relates to the technical field of fixtures, and in particular to a wire EDM size adaptive tooling fixture. Background Technology

[0002] Wire EDM, also known as electrical discharge wire cutting, is a metal processing method that utilizes the principle of electrical spark corrosion to cut materials. In wire EDM, a metal wire is used as an electrode; under the influence of electrical pulses, the workpiece material is locally corroded through electrical sparks, thus achieving the cutting purpose. Wire EDM equipment has wide applications in mold making, precision parts machining, and tooling manufacturing, enabling the processing of high-precision, high-surface-quality, and complex structures. During wire EDM, the clamping effect of the tooling fixture directly affects the machining accuracy and efficiency. However, existing wire EDM tooling fixtures have certain inconveniences; some fixtures struggle to ensure accurate workpiece positioning and stable clamping during the clamping process. Due to uneven clamping force distribution or unreasonable clamping methods, the workpiece is prone to displacement or deformation during processing, leading to dimensional deviations and affecting product quality. Utility Model Content

[0003] To address the problems mentioned in the background art, this application provides a wire EDM size adaptive tooling fixture.

[0004] The wire EDM dimension adaptive tooling fixture provided in this application adopts the following technical solution:

[0005] A wire EDM size adaptive fixture includes a fixed frame and a cutting mechanism. The fixed frame has symmetrically arranged fixed supports inside. An electric telescopic cylinder is fixedly connected to the upper surface of the fixed supports. A pressure plate for clamping the workpiece is fixedly connected to the output end of the electric telescopic cylinder. Two support plates for supporting the workpiece are fixedly connected to the inner sidewall of the fixed frame. Multiple support legs are fixedly connected to the lower surface of the fixed frame. A fixed plate is fixedly connected between adjacent support legs. Screws are symmetrically rotatably mounted on the upper surface of the fixed plates. The top ends of the screws are rotatably connected to the lower surface of the fixed frame. A slider is threaded through the sidewall of the screw and connected to the fixed support via a connecting assembly. A drive motor is fixedly connected to the lower surface of the fixed plate. The output end of the drive motor is fixedly connected to the bottom end of one of the screws. Adjacent screws are connected via a drive assembly. The cutting mechanism is mounted on the fixed frame and is used for wire EDM of the workpiece. A controller is located on one side of the fixed frame, and the drive motor, electric telescopic cylinder, and cutting mechanism are all electrically connected to the controller.

[0006] Preferably, the connecting assembly includes a first connecting seat and a second connecting seat, the first connecting seat being fixedly connected to the side wall of the slider, the second connecting seat being fixedly connected to the lower surface of the fixing frame, and the first connecting seat and the second connecting seat being hinged together by a connecting plate.

[0007] Preferably, the drive assembly includes two synchronous pulleys, and each of the two screw tops is fitted with a synchronous pulley on its sidewall, and the two synchronous pulleys are connected by a synchronous belt drive.

[0008] Preferably, a limiting rod is symmetrically and slidably installed through the upper surface of the fixing frame, and the bottom end of the limiting rod is fixedly connected to the upper surface of the pressure plate.

[0009] In summary, this application includes the following beneficial technical effects:

[0010] Compared to existing technologies, this device uses an electric telescopic cylinder and pressure plate to clamp the workpiece. The limiting rod ensures that the pressure plate presses down vertically, making the clamping force uniform and stable. This effectively avoids displacement and deformation of the workpiece during clamping and processing, improving processing accuracy and product quality. The drive motor drives the screw to rotate, which in turn moves the fixed frame. The clamping position can be flexibly adjusted according to the size of the workpiece to meet the clamping needs of workpieces of different sizes, thus improving the versatility of tooling fixtures. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of an embodiment of the application;

[0012] Figure 2 This is a bottom view of the structural diagram of an embodiment of the application;

[0013] Figure 3 This is a schematic diagram of the structure of the connection component and the driving component in the embodiment of the application.

[0014] Explanation of reference numerals in the attached drawings: 1. Fixed frame; 2. Fixed bracket; 3. Electric telescopic cylinder; 4. Support plate; 5. Cutting mechanism; 6. Limiting rod; 7. Pressure plate; 8. Controller; 9. Support leg; 10. Fixed plate; 11. Drive motor; 12. Slider; 13. Screw; 14. Synchronous pulley; 15. Synchronous belt; 16. Connecting plate; 17. First connecting seat; 18. Second connecting seat. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0016] This application discloses a wire EDM dimension-adaptive tooling fixture. (Refer to...) Figure 1-3A wire EDM size adaptive fixture includes a fixed frame 1 and a cutting mechanism 5. A fixed bracket 2 is symmetrically arranged inside the fixed frame 1. An electric telescopic cylinder 3 is fixedly connected to the upper surface of the fixed bracket 2. A pressure plate 7 for clamping the workpiece is fixedly connected to the output end of the electric telescopic cylinder 3. Limiting rods 6 are symmetrically slidably mounted through the upper surface of the fixed bracket 2. The bottom end of the limiting rod 6 is fixedly connected to the upper surface of the pressure plate 7. Two support plates 4 for supporting the workpiece are fixedly connected to the inner sidewall of the fixed frame 1. Multiple support legs 9 are fixedly connected to the lower surface of the fixed frame 1. A fixed plate 10 is fixedly connected between adjacent support legs 9. A screw 13 is symmetrically rotatably mounted on the upper surface of the fixed plate 10. The top end of the screw 13 is rotatably connected to the lower surface of the fixed frame 1. A slider 12 is threaded through the sidewall of the screw 13. The slider 12 is connected to the fixed bracket 2 via a connecting assembly, which includes a first connecting seat 17 and a second connecting seat 18. The first connecting seat 17 is fixedly connected to the sidewall of the slider 12. The second connecting seat 18 is fixedly connected to the lower surface of the fixed frame 2. The first connecting seat 17 and the second connecting seat 18 are hinged together by the connecting plate 16. The lower surface of the fixed plate 10 is fixedly connected to the drive motor 11. The output end of the drive motor 11 is fixedly connected to the bottom end of one of the screws 13. The two adjacent screws 13 are connected by a drive assembly. The drive assembly includes two synchronous pulleys 14. The synchronous pulleys 14 are sleeved on the side walls of the top ends of the two screws 13. The two synchronous pulleys 14 are connected by a synchronous belt 15. The cutting mechanism 5 is set on the fixed frame 1 and is used to perform wire cutting on the workpiece. A controller 8 is set on one side of the fixed frame 1. The drive motor 11, the electric telescopic cylinder 3 and the cutting mechanism 5 are all electrically connected to the controller 8. The cutting mechanism 5 is existing technology and widely used in society, so it will not be described in detail. The thread between the screw 13 and the slider 12 can achieve self-locking. The self-locking condition of the thread depends on the helix angle, the coefficient of friction and the load. The thread self-locking condition can be calculated using the following formula: Self-locking condition = Coefficient of friction × tan(helix angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above content refers to existing technology. In practical applications, the corresponding self-locking angle can be set according to the friction coefficient of the material, which will not be elaborated here.

[0017] The implementation principle of the wire EDM size adaptive tooling fixture in this application embodiment is as follows: All electrical components in this application are externally connected to a power supply and control switch during use. When in use, the workpiece to be processed is placed on the support plate 4 within the fixed frame 1. At this time, the drive motor 11 is started by the controller 8. The output end of the drive motor 11 drives the screw 13 to rotate. Since adjacent screws 13 are connected by a drive assembly consisting of a synchronous pulley 14 and a synchronous belt 15, when one screw 13 rotates, the other screw 13 will also rotate synchronously. When the screw 13 rotates, the slider 12 sleeved on its side wall will move along the axial direction of the screw 13 due to threaded transmission. The slider 12 is connected to the fixed frame 2 through a connecting assembly consisting of a first connecting seat 17, a connecting plate 16, and a second connecting seat 18. 12. When moving, the fixed frame 2 moves laterally inside the fixed frame 1, so that both ends of the workpiece are moved into the two fixed frames 2 respectively. After the fixed frame 2 is adjusted to the correct position, the electric telescopic cylinder 3 on the fixed frame 2 is activated. The output end of the electric telescopic cylinder 3 pushes the pressure plate 7 downward until the pressure plate 7 presses the workpiece. During the descent of the pressure plate 7, the limit rod 6 plays a guiding role to ensure that the pressure plate 7 can press down vertically, so that the clamping force is evenly distributed on the workpiece and the workpiece is prevented from being displaced or deformed during the clamping process. After the workpiece is clamped, the cutting mechanism 5 set on the fixed frame 1 is activated by the controller 8. The cutting mechanism 5 uses the principle of electric spark corrosion to perform wire cutting on the workpiece with metal wire as the electrode. During the processing, the fixture always maintains stable clamping of the workpiece to ensure processing accuracy. During this process, the workpiece is clamped by the electric telescopic cylinder 3 and the pressure plate 7. The limiting rod 6 ensures that the pressure plate 7 presses down vertically, making the clamping force uniform and stable. This effectively avoids the displacement and deformation of the workpiece during clamping and processing, improving processing accuracy and product quality. The drive motor 11 drives the screw 13 to rotate, which in turn drives the fixed frame 2 to move. The clamping position can be flexibly adjusted according to the size of the workpiece to meet the clamping requirements of workpieces of different sizes, thus improving the versatility of the tooling fixture.

[0018] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0019] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0020] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0021] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wire EDM dimension adaptive tooling fixture, characterized in that: The device includes a fixed frame (1) and a cutting mechanism (5). A fixed bracket (2) is symmetrically arranged inside the fixed frame (1). An electric telescopic cylinder (3) is fixedly connected to the upper surface of the fixed bracket (2). A pressure plate (7) for pressing the workpiece is fixedly connected to the output end of the electric telescopic cylinder (3). Two support plates (4) for supporting the workpiece are fixedly connected to the inner wall of the fixed frame (1). Multiple support legs (9) are fixedly connected to the lower surface of the fixed frame (1). A fixed plate (10) is fixedly connected between two adjacent support legs (9). A screw (13) is symmetrically and rotatably mounted on the upper surface of the fixed plate (10). The top end of the screw (13) is rotatably connected to the lower surface of the fixed frame (1). Next, a slider (12) is threaded through the side wall of the screw (13). The slider (12) is connected to the fixed frame (2) through a connecting assembly. A drive motor (11) is fixedly connected to the lower surface of the fixed plate (10). The output end of the drive motor (11) is fixedly connected to the bottom end of one of the screws (13). Two adjacent screws (13) are connected by a drive assembly. The cutting mechanism (5) is set on the fixed frame (1) and is used to perform wire cutting on the workpiece. A controller (8) is set on one side of the fixed frame (1). The drive motor (11), the electric telescopic cylinder (3) and the cutting mechanism (5) are all electrically connected to the controller (8).

2. The wire EDM dimension adaptive tooling fixture according to claim 1, characterized in that: The connecting assembly includes a first connecting seat (17) and a second connecting seat (18). The first connecting seat (17) is fixedly connected to the side wall of the slider (12), and the second connecting seat (18) is fixedly connected to the lower surface of the fixing frame (2). The first connecting seat (17) and the second connecting seat (18) are hinged together by a connecting plate (16).

3. The wire EDM dimension adaptive tooling fixture according to claim 1, characterized in that: The drive assembly includes two synchronous pulleys (14), and each of the two screws (13) has a synchronous pulley (14) fitted on the side wall at the top end. The two synchronous pulleys (14) are connected by a synchronous belt (15).

4. The wire EDM dimension adaptive tooling fixture according to claim 1, characterized in that: A limiting rod (6) is symmetrically and slidably installed through the upper surface of the fixing frame (2), and the bottom end of the limiting rod (6) is fixedly connected to the upper surface of the pressure plate (7).

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