Wire saw horizontal adjustment jig

Abstract

The utility model relates to the technical field of machining manufacturing, especially relates to a linear cutting horizontal adjustment jig. The utility model solves the problem of low horizontal adjustment efficiency, difficult precision guarantee, complicated operation and worktable surface easy damage after workpiece is clamped on the linear cutting machine tool in the prior art. It includes: the worktable is provided with a plurality of processing positioning holes, a horizontal adjustment support plate is detachably arranged on the worktable, a recessed well is arranged at one end of the support plate for placing a processing workpiece, and the processing workpiece is prepositioned, a horizontal adjustment jack screw is arranged in the positioning hole of the horizontal adjustment support plate, the bottom end of the jack screw abuts against the upper end surface of the worktable, and the horizontal degree of the support plate relative to the worktable is finely adjusted, a workpiece locking pressure plate is adjustably connected to one end of the horizontal adjustment support plate and abuts against the other end of the processing workpiece, and the recessed well cooperates to form a clamping space, and the processing workpiece is tightly locked. The compact structure design is reasonable, the installation space is saved, and quick clamping and alignment are realized.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing and manufacturing technology, and in particular to a wire cutting horizontal adjustment fixture. Background Technology

[0002] In mold manufacturing, precision machining, and other fields, CNC wire electrical discharge machining (EDM) technology is widely used because it can efficiently and accurately process parts with various complex shapes and high-hardness materials. The quality and precision of wire EDM machining largely depend on the workpiece's clamping stability and positioning accuracy during the machining process, especially ensuring the precise levelness of the workpiece.

[0003] Currently, in online cutting processes, traditional general-purpose fixtures (such as flat-jaw pliers and magnetic chucks) are commonly used in conjunction with standard shims, pressure plates, and bolts to clamp and align the workpiece. During operation, measuring tools such as dial indicators are needed to repeatedly adjust the levelness of various points on the workpiece, and correction is gradually achieved by trying to insert shims of different thicknesses. This traditional clamping and adjustment method has the following main drawbacks: The adjustment is inefficient and cumbersome: the alignment of the workpiece level depends entirely on the operator's experience and feel, and requires multiple cycles of measurement, adjustment and locking, which is time-consuming and seriously affects production efficiency, making it difficult to meet the needs of modern mass production and rapid production.

[0004] Limited adjustment accuracy and poor consistency: Manual shim adjustment is not very accurate and is prone to human error, making it difficult to achieve extremely high-precision horizontal positioning. For precision machining with high-quality requirements, this method cannot guarantee product consistency and machining stability.

[0005] Insufficient versatility and adaptability: When clamping irregularly shaped workpieces, small workpieces or workpieces with special structures, traditional clamping plates often face problems such as interference, insufficient clearance, and poor clamping points. The clamping stability is poor, and it may even cause the workpiece to shift during processing, resulting in scrap.

[0006] Risk of damage to machine tool table surface: Frequent use of bolts to directly tighten or press against the worktable surface can easily cause scratches or indentations to the precision machine tool worktable surface, affecting the flatness of the table surface and its service life.

[0007] Therefore, there is an urgent need for a clamping fixture specifically designed for wire EDM machines that can enable rapid workpiece clamping, convenient and precise leveling adjustment, and good versatility and reliability, in order to overcome the aforementioned deficiencies in existing technologies. Utility Model Content

[0008] The purpose of this invention is to provide a wire EDM horizontal adjustment fixture, which solves the problems of low efficiency, difficulty in ensuring accuracy, cumbersome operation, and easy damage to the worktable surface in the prior art after the workpiece is clamped on the wire EDM machine.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a wire EDM horizontal adjustment fixture, comprising: The workbench is provided with a plurality of machining positioning holes; A horizontal adjustment tray is detachably mounted on the worktable. One end of the horizontal adjustment tray is recessed with a countersunk platform for placing the workpiece and pre-positioning it. A horizontal adjusting screw is provided, which passes through a positioning hole in the horizontal adjusting plate and the bottom end of the horizontal adjusting screw abuts against the upper end surface of the worktable, for fine-tuning the horizontality of the horizontal adjusting plate relative to the worktable. The workpiece locking plate has one end adjustablely connected to the horizontal adjustment plate, and the other end abuts against the workpiece being processed, forming a clamping space with the countersink to press and lock the workpiece being processed.

[0010] Furthermore, a first guide groove is provided in the middle of the horizontal adjustment plate, and a first fixing screw is provided in the first guide groove. The first fixing screw passes through the first guide groove and is threadedly connected to the machining positioning hole on the worktable to lock the horizontal adjustment plate on the worktable.

[0011] Furthermore, the workpiece locking plate includes a guide rod and a pressure plate; the guide rod is vertically arranged, and its bottom end abuts against and is positioned with the end face of the horizontal adjustment plate; the pressure plate is horizontally arranged, and a connecting hole is provided at the connection point between it and the guide rod, and the upper end of the guide rod passes through the connecting hole and is vertically connected to the pressure plate; One end of the pressure plate extends above the workpiece and cooperates with the sinker to form a clamping space.

[0012] Furthermore, a second guide groove is provided on the pressure plate, and a second fixing screw is provided in the second guide groove. The bottom end of the second fixing screw is threadedly connected to the positioning hole provided on the horizontal adjustment plate.

[0013] Furthermore, a clamping groove is provided at the end of the pressure plate away from the guide rod. The inner wall of the clamping groove is adapted to the edge contour of the upper end face of the workpiece. Through the close contact between the clamping groove and the workpiece, the contact area is increased and the horizontal displacement of the workpiece is restricted.

[0014] Furthermore, there are four horizontal adjustment screws, which are distributed at the four corners of the horizontal adjustment plate respectively; by independently adjusting the extension length of the four horizontal adjustment screws, the horizontal adjustment plate can be adjusted in both directions of the X and Y axes.

[0015] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model discloses a wire EDM horizontal adjustment fixture. By setting a horizontal adjustment set screw, the height of the horizontal adjustment plate can be adjusted in a small and precise manner, easily achieving high-precision horizontal positioning of the workpiece. It completely avoids the errors and repeated trial and error caused by traditional adjustment methods. The leveling process is intuitive and efficient, and the skill requirements for operators are reduced.

[0016] Furthermore, the countersunk platform on the horizontal adjustment plate can pre-position the workpiece, while the clamping groove design at the end of the workpiece locking plate can adapt to the edge contours of workpieces of different shapes, increasing the contact area and effectively limiting the horizontal displacement of the workpiece, preventing loosening or displacement during processing. It is particularly suitable for the safe clamping of irregularly shaped parts and small workpieces, significantly improving its versatility. Furthermore, the fixture as a whole is fixed to the pre-set positioning holes on the worktable by locking screws. All clamping and adjustment forces are borne by the fixture's own structure, avoiding scratches, indentations and other damage caused by the direct clamping and pressing of the pressure plate and bolts on the precision table of the machine tool in traditional clamping. This protects the flatness and precision of the machine tool's worktable and extends the service life of the machine tool.

[0017] Furthermore, this fixture integrates multiple functions such as workpiece placement, pre-positioning, precision leveling, and clamping and locking. Its reasonable and compact structural design saves installation space, reduces the number of auxiliary tools required for clamping, and enables rapid clamping and alignment, significantly improving the preparation and production efficiency of wire EDM. Attached Figure Description

[0018] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic diagram of the structure of the wire cutting horizontal adjustment fixture provided by this utility model; Figure 2 This is a schematic diagram (a) of the structure of the horizontal adjustment plate and the workpiece locking plate combined in operation provided by this utility model. Figure 3 This is a schematic diagram (II) of the structure of the horizontal adjustment plate and the workpiece locking plate combined in operation provided by this utility model. The reference numerals in the attached figures are explained as follows: 1. Worktable; 100. Machining positioning holes; 2. Horizontal adjustment plate; 200. Recessed platform; 201. Positioning hole; 202. First guide groove; 3. Adjust the set screw horizontally; 4. Workpiece locking plate; 401. Guide rod; 402. Pressure plate; 4020. Connecting hole; 4021. Second guide groove; 4022. Clamping groove; 5. First fixing screw; 6. Second fixing screw; 7. Process the workpiece. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] See Figures 1 to 3 The wire EDM horizontal adjustment fixture disclosed in this example includes a worktable 1, a horizontal adjustment support plate 2, a horizontal adjustment set screw 3, and a workpiece locking pressure plate 4. It aims to solve the problems of difficult horizontal adjustment, low efficiency, and easy damage to the worktable surface in traditional wire EDM clamping.

[0021] Specifically, the worktable 1, as the basic platform of the entire fixture, can usually be the existing worktable of the wire EDM machine tool, or a separate transition plate can be made and fixed to the machine tool with bolts. The worktable 1 has a number of machining positioning holes 100 regularly formed. These holes are usually arranged in a matrix and are standard threaded holes, used to provide mounting and positioning references for other parts of the fixture.

[0022] The horizontal adjustment plate 2 is detachably mounted on the worktable 1 using fasteners and is the core carrier for achieving the horizontal adjustment function of this fixture. At the end of the horizontal adjustment plate 2 that supports the workpiece, a recess 200 is machined. This recess 200 serves two purposes: firstly, to pre-position the workpiece 7 placed on it, preventing easy movement of the workpiece; and secondly, to ensure that the part of the workpiece to be processed is higher than the upper surface of the horizontal adjustment plate 2, avoiding interference with the plate during wire cutting.

[0023] In the middle of the horizontal adjustment plate 2, a long strip-shaped first guide groove 202 is provided; in this example, two grooves are provided in parallel. This groove allows the first fixing screw 5 to move within its length range, thereby adjusting the longitudinal (Y-direction) installation position of the horizontal adjustment plate 2 on the worktable 1 within a certain range to accommodate workpieces of different sizes. Once the position is determined, tightening the first fixing screw 5 so that its lower end screws into the corresponding machining positioning hole 100 on the worktable 1 will securely lock the horizontal adjustment plate 2 in the current position.

[0024] The leveling screws 3 are key components for achieving precise leveling. In this embodiment, four leveling screws 3 are preferably provided, which are respectively inserted into the positioning holes 201 opened near the four corners of the leveling plate 2. These positioning holes are either smooth holes or threaded holes. The bottom end of the leveling screws 3 is in direct contact with the upper surface of the worktable 1. By independently turning these four screws with a wrench or an Allen wrench, the height of each corner of the leveling plate 2 can be precisely controlled. For example, if it is necessary to adjust the levelness of the workpiece in the X-axis direction, two screws located on the same X-line can be adjusted; if it is necessary to adjust the levelness in the Y-axis direction, two screws on the same Y-line can be adjusted. This design allows the operator to easily and slightly adjust the levelness of the entire plate until the required high precision is achieved by measuring with a level, replacing the traditional and cumbersome shim adjustment method.

[0025] The workpiece locking plate 4 is used to finally clamp and fix the workpiece after the leveling adjustment is completed. It consists of two parts: a guide rod 401 and a pressure plate 402. The guide rod 401 is vertically set, and its bottom end abuts against the end face of the leveling support plate 2, serving as a preliminary positioning and support. The pressure plate 402 is horizontally set, and a connecting hole 4020 is provided at the connection point with the guide rod 401. The upper end of the guide rod 401 passes through this connecting hole 4020, which can be set as a threaded hole, so as to securely connect with the pressure plate 402. Preferably, a clamping groove 4022 is provided at the end of the pressure plate 402 away from the guide rod 401, which is used to clamp the workpiece. The contour of the groove (such as V-shape, U-shape or flat) is designed to match the edge shape of the upper end face of the workpiece, thereby increasing the contact area with the workpiece and providing a certain downward and inward clamping force, effectively limiting any displacement of the workpiece in the horizontal direction, and ensuring absolute stability during the processing.

[0026] To lock the pressure plate 402 in the optimal clamping position and prevent it from shifting due to vibration, a second guide groove 4021 is provided on the pressure plate 402. The second fixing screw 6 passes through this groove, and its bottom end is screwed into the positioning hole 201 on the horizontal adjustment plate 2. When the screw is tightened, the pressure plate 402 is firmly fixed on the horizontal adjustment plate 2.

[0027] Working principle and usage process: First, the leveling plate 2 is initially fixed to the approximate desired position on the worktable 1 using the first fixing screw 5. Then, the workpiece to be processed is placed in the countersunk table 200 for pre-positioning. Next, the workpiece locking plate 4 is initially placed, so that the clamping groove 4022 of the plate 402 lightly contacts the upper surface of the workpiece. Afterward, a level is placed on the workpiece, and the four leveling screws 3 are adjusted sequentially and finely, observing the bubble in the level until the workpiece reaches a precise level. After leveling, the first fixing screw 5 is tightened to finally lock the leveling plate 2 onto the worktable 1. Then, the workpiece locking plate 4 is tightened again, and the second fixing screw 6 is tightened to lock the plate 402 securely. Finally, all connections are checked for firmness, and wire EDM processing can begin.

[0028] This utility model has a reasonable structural design and a clear operation process, which greatly improves clamping efficiency and leveling accuracy, while protecting the machine tool worktable. It has good feasibility and practicality.

[0029] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A wire saw horizontal adjustment jig, characterized by, include: A workbench (1) is provided with a plurality of machining positioning holes (100). A horizontal adjustment tray (2) is detachably mounted on the worktable (1). One end of the horizontal adjustment tray (2) is recessed with a recessed platform (200). The recessed platform (200) is used to place the workpiece and pre-position the workpiece. A horizontal adjusting screw (3) is inserted into a positioning hole (201) on the horizontal adjusting plate (2), and the bottom end of the horizontal adjusting screw (3) abuts against the upper end face of the worktable (1) to finely adjust the horizontality of the horizontal adjusting plate (2) relative to the worktable (1). The workpiece locking plate (4) has one end adjustablely connected to the horizontal adjustment plate (2), and the other end abuts against the workpiece and cooperates with the sinker (200) to form a clamping space to press and lock the workpiece.

2. The wire saw horizontal adjustment jig of claim 1, wherein, The horizontal adjustment tray (2) has a first guide groove (202) in the middle. A first fixing screw (5) is provided in the first guide groove (202). The first fixing screw (5) passes through the first guide groove (202) and is threadedly connected to the machining positioning hole (100) on the worktable (1) to lock the horizontal adjustment tray (2) on the worktable (1).

3. The wire saw horizontal adjustment jig of claim 1, wherein, The workpiece locking plate (4) includes a guide rod (401) and a pressure plate (402); the guide rod (401) is vertically arranged, and its bottom end abuts against the end face of the horizontal adjustment plate (2) for positioning; the pressure plate (402) is horizontally arranged, and a connecting hole (4020) is provided at the connection between it and the guide rod (401), and the upper end of the guide rod (401) passes through the connecting hole (4020) and is vertically connected to the pressure plate (402); One end of the pressure plate (402) extends above the workpiece and cooperates with the countersink (200) to form a clamping space.

4. The wire saw horizontal adjustment jig of claim 3, wherein, The pressure plate (402) is provided with a second guide groove (4021), and a second fixing screw (6) is provided in the second guide groove (4021). The bottom end of the second fixing screw (6) is threadedly connected to the positioning hole (201) opened on the horizontal adjustment plate (2).

5. The wire saw horizontal adjustment jig of claim 3, wherein, The pressure plate (402) has a pressing groove (4022) at one end away from the guide rod (401). The inner wall of the pressing groove (4022) is adapted to the edge contour of the upper end face of the workpiece. The pressing groove (4022) is in close contact with the workpiece, increasing the contact area and restricting the horizontal displacement of the workpiece.

6. The wire saw horizontal adjustment jig of claim 1, wherein, There are four horizontal adjustment screws (3), which are distributed at the four corners of the horizontal adjustment plate (2). By independently adjusting the extension length of the four horizontal adjustment screws (3), the horizontal adjustment plate (2) can be adjusted in both directions of the X and Y axes.

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