Automatic positioning and clamping tool for wire cutting of oversized parts

Abstract

The invention provides an oversized part linear cutting automatic positioning and clamping tool which comprises a positioning and locking tool and an auxiliary supporting tool, the positioning and locking tool and the auxiliary supporting tool are installed on the two sides of a workbench correspondingly, the positioning and locking tool is used for achieving alignment and clamping of a base plate, and the auxiliary supporting tool is used for supporting the base plate. The auxiliary supporting tool is used for achieving fixed supporting of oversized parts. The positioning and locking tool comprises a locking support, a jacking frame, a guide assembly, a positioning and locking handle, a plurality of tensioning assemblies and a reference strip, the reference strip is located on the portion, on the front side of the first side face and the front side of the second side face, of the workbench, and the reference strip is used for conducting position alignment when a base plate is placed; the auxiliary supporting tool comprises a sliding table base, a horizontal sliding plate, a sliding plate locking handle, a lifting supporting column, a lifting sliding base, a lifting locking handle, a telescopic pipe and a flexible supporting piece. The technical problems that in the wire cutting process of oversized parts in the prior art, the alignment precision of the base plate is insufficient, and the fixing and supporting safety of the parts is insufficient can be solved.

Description

Technical Field

[0001] This invention belongs to the field of additive manufacturing post-processing technology, and particularly relates to an automatic positioning and clamping fixture for wire cutting of ultra-large parts. Background Technology

[0002] Wire EDM is an indispensable post-processing step in additive manufacturing, primarily used to separate parts from the substrate. Traditionally, an overhead crane is used to lift the substrate onto the wire EDM worktable. Workers then use a hammer and dial indicator to align the substrate, repeatedly tapping around the perimeter to ensure uniform spacing between the substrate and the wire cutting wire. Compared to traditional laser selective melting (SDM) equipment, large-size on-the-fly additive manufacturing equipment can achieve forming areas of up to 1500mm × 1500mm × 1500mm, substrate sizes of up to 1510mm × 1510mm × 300mm, and parts and substrates weighing up to 3000kg. The traditional manual alignment method is difficult, time-consuming, and lacks precision. Furthermore, the substrate and part are not fixed during alignment; if the substrate slips or overturns, it can easily cause injuries. Additionally, the parts are typically large, and falling onto the worktable after wire cutting can cause damage to the parts or equipment. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] This invention provides an automatic positioning and clamping fixture for wire EDM of ultra-large parts. The fixture includes a positioning and locking fixture and an auxiliary support fixture, which are respectively installed on both sides of the worktable. The positioning and locking fixture is used to align and clamp the substrate, and the auxiliary support fixture is used to fix and support the ultra-large parts. The positioning and locking fixture includes a locking bracket, a clamping frame, a guide assembly, a positioning and locking handle, several tensioning components, and a reference bar. The locking bracket is fixed to the worktable. The clamping frame is movably positioned on the outer side of the locking bracket facing the substrate via the guide assembly. The positioning and locking handle is connected to the clamping frame and is used to adjust and lock the relative position of the clamping frame and the substrate. Several tensioning components are evenly and symmetrically distributed on two opposite sides of the locking bracket. One end of each tensioning component is fixed to the locking bracket, and the other end hooks onto the substrate and pulls the substrate toward the clamping frame, thus clamping the substrate. The reference bar is located on the worktable and is used for positioning when placing the substrate. The auxiliary support fixture includes a slide base, a horizontal slide plate, a slide plate locking handle, a lifting column, a lifting slide block, a lifting locking handle, a telescopic tube, and a flexible support component. The slide base is fixed on the worktable. The horizontal slide plate is slidably mounted on the slide base, and the slide plate locking handle is connected to the horizontal slide plate to fix its position. The lifting column is fixed on the horizontal slide plate, and the lifting slide block is movably mounted on the lifting column and fixed in position by the lifting locking handle. One end of the telescopic tube is fixed to the lifting slide block, and the other end is connected to the flexible support component used to support the parts.

[0005] Furthermore, the guide assembly includes a guide rod, an adjusting ring, and a spring. The guide rod extends along the moving direction of the clamping frame and is movably mounted on the locking bracket. One end of the guide rod is fixed to the clamping frame. The adjusting ring is fixedly sleeved on the guide rod, and the spring is sleeved on the guide rod and located between the adjusting ring and the first side of the locking bracket.

[0006] Furthermore, any tensioning assembly includes a tensioning rod, a hook, and a rod locking handle. One end of the tensioning rod is fixed to the locking bracket via the rod locking handle, and the hook is located at the other end of the tensioning rod. The hook is used to hook the side of the substrate that contacts the part and pull the substrate toward the top tensioning frame.

[0007] Furthermore, any tensioning assembly also includes a preload element located at one end of the tensioning rod fixed to the locking bracket. The preload element is used to provide preload force to the tensioning rod before the tensioning rod is secured by the locking handle.

[0008] Furthermore, the positioning and locking fixture also includes a top pressure plate and a vertical locking rod. One end of the vertical locking rod is fixed to the locking bracket, and the other end is fixed to the top pressure plate. The top pressure plate straightens and clamps the substrate from above.

[0009] Furthermore, the positioning and locking fixture also includes an insulating plate, which is pressed and fixed to the side of the base plate support pad of the worktable.

[0010] Furthermore, the auxiliary support fixture also includes a linear guide rail, which is fixed to the surface of the slide base, and the horizontal slide plate is slidably mounted on the slide base via the linear guide rail.

[0011] Furthermore, the auxiliary support fixture also includes a slide guide groove, which is located on the surface of the slide base. The slide guide groove has a groove, and the slide locking handle moves along the groove with the horizontal slide.

[0012] Furthermore, the auxiliary support fixture also includes an insulating plate, which is located between the lifting column and the horizontal sliding plate.

[0013] Furthermore, the flexible support uses a quick-detachable variable-diameter bushing or a shaped claw.

[0014] This invention provides an automatic positioning and clamping fixture for wire EDM of ultra-large parts. This fixture achieves substrate alignment and clamping through a positioning and locking fixture, and secures the ultra-large parts through an auxiliary support fixture. Specifically, a reference strip aligns the substrate, while a clamping frame and tensioning assembly simultaneously push and pull the substrate. Adjustments to the horizontal slide, lifting slide, and telescopic tube enable flexible support for different parts. This invention ensures rapid alignment of the parts to be cut, meeting the precision requirements of wire EDM, and enables rapid clamping of the substrate and effective support for the parts. Compared with existing technologies, this invention solves the technical problems of insufficient substrate alignment accuracy and inadequate part fixation and support in the wire EDM process for ultra-large parts. Attached Figure Description

[0015] The accompanying drawings, which form part of this specification, are provided to further illustrate embodiments of the invention and, together with the textual description, explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0016] Figure 1 A front view of a positioning and locking fixture provided according to a specific embodiment of the present invention is shown; Figure 2 A top view of a positioning and locking fixture provided according to a specific embodiment of the present invention is shown; Figure 3 A side view of a positioning and locking fixture provided according to a specific embodiment of the present invention is shown; Figure 4 A front view of an auxiliary support fixture provided according to a specific embodiment of the present invention is shown; Figure 5 A side view of an auxiliary support fixture provided according to a specific embodiment of the present invention is shown; Figure 6 A top view of the auxiliary support fixture provided according to a specific embodiment of the present invention is shown when the lifting slide is not installed.

[0017] The above figures include the following reference numerals: 1-1 Locking bracket; 1-2 Top pressure plate; 1-3 Vertical locking rod; 1-4 Insulating plate; 1-5 Tensioning rod; 1-6 Hook; 1-7 Insulating sleeve; 1-8 Tightening frame; 1-9 Spring; 1-10 Guide rod; 1-11 Positioning locking handle; 1-12 Pull rod locking handle; 1-13 Pre-tensioning component; 1-14 Adjusting ring; 2-1. Slide base; 2-2. Horizontal slide plate; 2-3. Insulating plate; 2-4. Telescopic tube; 2-5. Slide plate guide groove; 2-6. Linear guide rail; 2-7. Lifting locking handle; 2-8. Lifting slide; 2-9. Lifting support column; 2-10. Slide plate locking handle; 2-11. Stable foot; 2-12. Variable diameter bushing; 2-13. Irregularly shaped claw. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0021] like Figures 1 to 6 As shown, according to a specific embodiment of the present invention, an automatic positioning and clamping fixture for wire cutting of ultra-large parts is provided. The automatic positioning and clamping fixture for wire cutting of ultra-large parts includes a positioning and locking fixture and an auxiliary support fixture. The positioning and locking fixture and the auxiliary support fixture are respectively installed on both sides of the worktable. The positioning and locking fixture is used to realize the alignment and clamping of the substrate, and the auxiliary support fixture is used to realize the fixed support of the ultra-large parts. The positioning and locking fixture includes a locking bracket 1-1, a clamping frame 1-8, a guide assembly, a positioning and locking handle 1-11, several tensioning components, and a reference bar. The locking bracket 1-1 is fixed to the worktable. The clamping frame 1-8 is movably positioned on the outer side of the locking bracket 1-1 facing the substrate via the guide assembly. The positioning and locking handle 1-11 is connected to the clamping frame 1-8 and is used to adjust and lock the relative position of the clamping frame 1-8 and the substrate. Several tensioning components are evenly and symmetrically distributed on two opposite sides of the locking bracket 1-1. One end of any tensioning component is fixed to the locking bracket 1-1, and the other end hooks onto the substrate and pulls the substrate toward the clamping frame 1-8, thereby clamping the substrate. The reference bar is located on the worktable and is used for positioning when placing the substrate. The auxiliary support fixture includes a slide base 2-1, a horizontal slide plate 2-2, a slide plate locking handle 2-10, a lifting column 2-9, a lifting slide block 2-8, a lifting locking handle 2-7, a telescopic tube 2-4, and a flexible support component. The slide base 2-1 is fixed on the worktable. The horizontal slide plate 2-2 is slidably mounted on the slide base 2-1. The slide plate locking handle 2-10 is connected to the horizontal slide plate 2-2 to fix its position. The lifting column 2-9 is fixed on the horizontal slide plate 2-2. The lifting slide block 2-8 is movably mounted on the lifting column 2-9 and its position is fixed by the lifting locking handle 2-7. One end of the telescopic tube 2-4 is fixed on the lifting slide block 2-8, and the other end is connected to the flexible support component used to support the parts.

[0022] This configuration provides an automatic positioning and clamping fixture for wire EDM of ultra-large parts. This fixture uses a positioning and locking device to align and clamp the substrate, and an auxiliary support device to fix the ultra-large parts in place. Specifically, a reference strip aligns the substrate, while a clamping frame and tensioning assembly simultaneously push and pull the substrate. Adjustments to the horizontal slide, lifting slide, and telescopic tube enable flexible support for different parts. This invention ensures rapid alignment of the parts to be cut, meets the precision requirements of wire EDM, and enables rapid clamping of the substrate and effective support for the parts.

[0023] Furthermore, in this invention, the guide assembly includes a guide rod 1-10, an adjusting ring 1-14, and a spring 1-9. The guide rod 1-10 extends along the moving direction of the clamping frame 1-8 and is movably disposed on the locking bracket 1-1. One end of the guide rod 1-10 is fixed to the clamping frame 1-8. The adjusting ring 1-14 is fixedly sleeved on the guide rod 1-10, and the spring 1-9 is sleeved on the guide rod 1-10 and located between the adjusting ring 1-14 and the first side of the locking bracket 1-1.

[0024] With this configuration, before placing the substrate or when removing the substrate after wire cutting, the positioning locking handle 1-11 is in an unlocked state, and the spring 1-9 is released. Under the action of the spring 1-9, the adjusting ring 1-14, the guide rod 1-10, and the clamping frame 1-8 are sequentially moved away from the substrate placement position. Figure 2 (Move from center to left) When it is necessary to clamp and fix the substrate, rotate the positioning and locking handle 1-11, which will sequentially move the clamping frame 1-8, guide rod 1-10 and adjusting ring 1-14 toward the substrate. Figure 2 (Move from center to right) As the adjusting ring 1-14 moves, the spring 1-9 is gradually compressed and finally locked in place by the locking handle 1-11.

[0025] The aforementioned guide components can automatically spring back and tighten the frame 1-8, assisting manual operation and ensuring reliable separation of the tightening frame 1-8 from the substrate, without affecting the wire cutting of the parts.

[0026] The number of guide components can be set to multiple, and they are arranged evenly and symmetrically relative to the top clamping frames 1-8 to provide stable support for the substrate.

[0027] Furthermore, in this invention, any tensioning assembly includes a tensioning rod 1-5, a hook 1-6, and a rod locking handle 1-12. One end of the tensioning rod 1-5 is fixed to the locking bracket 1-1 via the rod locking handle 1-12. The hook 1-6 is located at the other end of the tensioning rod 1-5. The hook 1-6 is used to hook the side of the substrate that contacts the part and pull the substrate toward the top clamping frame 1-8.

[0028] The number of tensioning components can be set to multiple, with the multiple tensioning components evenly and symmetrically distributed on the left and right sides of the locking bracket 1-1. For example... Figure 3 The image shows four examples of tensioning components, but is not limited to these.

[0029] In any tensioning assembly, the number of lever locking handles 1-12 can be set to multiple, providing reliable locking and fixing for the hook.

[0030] In addition, any tensioning assembly may also be configured to include a pretensioner 1-13, which is located at one end of the tensioning rod 1-5 fixed on the locking bracket 1-1. The pretensioner 1-13 is used to provide pretension force to the tensioning rod 1-5 before the tensioning rod 1-5 is fixed by the rod locking handle 1-12, so as to achieve slight tension of the tensioning rod 1-5 on the substrate.

[0031] Furthermore, in this invention, the positioning and locking fixture also includes a top pressure plate 1-2 and a vertical locking rod 1-3. One end of the vertical locking rod 1-3 is fixed to the locking bracket 1-1, and the other end is fixed to the top pressure plate 1-2. The top pressure plate 1-2 straightens and clamps the substrate from above.

[0032] The top pressure plate 1-2 and the vertical locking rod 1-3 can be multiple, with each top pressure plate 1-2 corresponding to a different vertical locking rod 1-3, arranged evenly and symmetrically relative to the substrate to provide uniform clamping. Figure 3 The image shows an example of two sets of top pressure plates 1-2 and vertical locking rods 1-3, but is not limited to this.

[0033] Furthermore, in this invention, the positioning and locking fixture also includes an insulating sleeve 1-7, which is fixed on the side of the clamping frame 1-8 facing the substrate. The insulating sleeve 1-7 can provide insulation support for the substrate while also preventing mechanical damage to the substrate.

[0034] The number of insulating sleeves 1-7 can be set to multiple, and they are evenly distributed on the top tightening frame 1-8.

[0035] Furthermore, in this invention, the positioning and locking fixture also includes an insulating plate 1-4, which is used to press and fix the positioning and locking fixture to the side of the substrate support pad of the worktable. The insulating plate 1-4 further provides insulation and stable support for the substrate.

[0036] Using the above configuration, the automatic positioning and clamping fixture for wire EDM of ultra-large parts aligns and holds the substrate as follows: The 3D-printed substrate is transported to the worktable using a crane and slowly placed on the substrate support pad. The substrate is moved to ensure it is flush against the reference strips on the front of the first and second sides of the locking bracket 1-1. The top pressure plate 1-2 is adjusted to straighten and clamp the substrate from above. The positioning locking handle 1-11 is rotated to slightly press the top clamping frame 1-8 against the first side of the substrate. The pull hook 1-6 is hooked onto the second side of the substrate, and the pre-tensioning element at the tail of the tension rod 1-5 is adjusted to slightly tighten it. While keeping the substrate vertical, the positioning locking handle 1-11 and the pull rod locking handle 1-12 are simultaneously adjusted to pull and push the substrate, ensuring the top clamping frame 1-8 and the tension rod 1-5 are evenly stressed. Finally, the positioning locking handle 1-11 and the pull rod locking handle 1-12 are locked. After these operations, the bottom of the substrate is in close contact with the worktable and aligned with the reference strips, completing the accurate positioning and clamping of the substrate.

[0037] Furthermore, in this invention, the auxiliary support fixture also includes a linear guide rail 2-6, which is fixed to the surface of the slide base 2-1, and the horizontal slide plate 2-2 is slidably mounted on the slide base 2-1 via the linear guide rail 2-6.

[0038] The number of linear guide rails 2-6 can be set to multiple to ensure the stable sliding of the horizontal slide plate 2-2.

[0039] Furthermore, in this invention, the auxiliary support fixture also includes a slide guide groove 2-5, which is located on the surface of the slide base 2-1. The slide guide groove 2-5 has a groove, and the slide locking handle 2-10 moves along the groove with the horizontal slide 2-2. When the horizontal slide 2-2 moves to the appropriate position, the slide locking handle 2-10 is locked and fixed in the groove.

[0040] Furthermore, in this invention, the auxiliary support fixture also includes an insulating plate 2-3, which is located between the lifting support column 2-9 and the horizontal sliding plate 2-2. The insulating plate 2-3 is used to ensure the insulation between the parts and the worktable.

[0041] Furthermore, in this invention, the auxiliary support fixture also includes a stabilizing bracket 2-11, which is connected to the insulating plate 2-3 and the lifting column 2-9 respectively. The stabilizing bracket 2-11 is used to improve the stability of the installation of the lifting column 2-9.

[0042] Furthermore, in this invention, the flexible support member adopts a quick-detachable variable diameter bushing 2-12 or an irregularly shaped claw 2-13, which can effectively adapt to the internal cavity structure of the part and provide strong support.

[0043] Furthermore, in this invention, the number of lifting slides 2-8 can be set to multiple, thereby fixing multiple telescopic tubes 2-4 of different sizes, improving the flexibility of component support.

[0044] Among them, the telescopic tubes 2-4 can be made of stainless steel.

[0045] In addition, a slide base 2-1 can be configured to press and fix the part support pad on the side of the worktable to further improve the stability of the auxiliary support fixture.

[0046] Using the above configuration, the automatic positioning and clamping fixture for wire EDM of ultra-large parts provides fixed support for the parts as follows: Adjust the positions of the horizontal slide plate 2-2, the lowering slide block 2-8, and the stainless steel telescopic tube 2-4. Insert the end of the telescopic tube 2-4 into the part. Depending on the shape of the part's internal cavity, select either the variable diameter bushing 2-12 or the irregularly shaped claw 2-13 for support to effectively support the part. During machining, the positions of the horizontal slide plate 2-2, the lowering slide block 2-8, and the stainless steel telescopic tube 2-4 can be adjusted and fixed using the slide plate locking handle 2-10 and the lifting locking handle 2-7 to effectively support parts in different areas. Then, perform the subsequent wire cutting process.

[0047] This invention provides a wire EDM positioning and clamping fixture for ultra-large parts. This fixture can ensure that the parts can be quickly aligned when hoisted onto the worktable to meet the accuracy requirements of wire EDM processing. It can also achieve rapid clamping of the substrate and effective support for the parts, which greatly reduces the operator's operation time on the worktable and provides a reliable guarantee for the safe cutting of ultra-large printing substrates.

[0048] The automatic positioning and clamping fixture for wire cutting of ultra-large parts of the present invention is applicable to large-size aero-additive manufacturing equipment with a forming area of ​​up to 1500mm×1500mm×1500mm, a substrate size of up to 1510mm×1510mm×300mm, and a weight of up to 3000kg for parts and substrates.

[0049] To gain a further understanding of the present invention, the automatic positioning and clamping fixture for wire cutting of ultra-large parts of the present invention will be described in detail below with reference to specific embodiments.

[0050] like Figures 1 to 6 As shown in the figure, an automatic positioning and clamping fixture for wire cutting of ultra-large parts is provided according to a specific embodiment of the present invention, including a positioning and locking fixture and an auxiliary support fixture. The positioning and locking fixture and the auxiliary support fixture are respectively installed on both sides of the worktable. The positioning and locking fixture is used to realize the alignment and clamping of the substrate, and the auxiliary support fixture is used to realize the fixed support of the ultra-large parts.

[0051] The positioning and locking fixture includes a locking bracket 1-1, a top clamping frame 1-8, a guide assembly, a positioning and locking handle 1-11, several tensioning assemblies, a top pressure plate 1-2, a vertical locking rod 1-3, an insulating sleeve 1-7, an insulating plate 1-4, and a reference strip.

[0052] The bottom of the locking bracket 1-1 is placed on the workbench of the equipment and pressed against the side of the base plate support pad by the insulating plate 1-4 and fixed by bolts.

[0053] One or two vertical locking rods 1-3 are inserted into the middle of the locking bracket 1-1 along the vertical Z-axis. One end of the vertical locking rod 1-3 is fixed to the bracket with bolts, and the other end is inserted into the top pressure plate 1-2. Nuts are installed on the top pressure plate 1-2 for fixation.

[0054] A clamping frame 1-8 is installed on the first side of the locking bracket 1-1 facing the substrate, and an insulating sleeve 1-7 is installed on the side of the clamping frame 1-8 facing the substrate. The positioning locking handle 1-11 passes through the locking bracket 1-1.

[0055] The guide assembly includes a guide rod 1-10, an adjusting ring 1-14, and a spring 1-9. The guide rod 1-10 extends along the moving direction of the clamping frame 1-8 and is movably mounted on the locking bracket 1-1. One end of the guide rod 1-10 is fixed to the clamping frame 1-8. The adjusting ring 1-14 is fixedly sleeved on the guide rod 1-10, and the spring 1-9 is sleeved on the guide rod 1-10 and located between the adjusting ring 1-14 and the first side of the locking bracket 1-1.

[0056] Tensioning rods 1-5 are installed on the second and third sides opposite to the locking bracket 1-1. A hook 1-6 is welded to one end of the tensioning rod 1-5, and the other end is fixed to the locking bracket 1-1 via a locking handle 1-12. A pre-tensioning element 1-13 is also fixed to the other end of the tensioning rod 1-5.

[0057] The reference strip is located on the base plate support pad of the worktable. Two reference strips can be set, and the two reference strips extend in different directions, thereby improving the accuracy of alignment.

[0058] The auxiliary support fixtures include a slide base 2-1, a horizontal slide plate 2-2, a slide plate locking handle 2-10, an insulating plate 2-3, a linear guide rail 2-6, a slide plate guide groove 2-5, a lifting support column 2-9, a lifting slide block 2-8, a lifting locking handle 2-7, a stainless steel telescopic tube 2-4, flexible support components, and a stable foot 2-11.

[0059] The slide base 2-1 is placed on the worktable and fixed with bolts. The side is connected to the part support pad with bolts.

[0060] Two linear guide rails 2-6 are installed above the slide base 2-1. A horizontal slide plate 2-2 is installed on the upper side of the linear guide rails 2-6. An insulating plate 2-3 is installed on the upper side of the horizontal slide plate 2-2. A lifting support column 2-9 is installed on the insulating plate 2-3 and fixed with bolts.

[0061] The sliding plate locking handle 2-10 is connected to the horizontal sliding plate 2-2 and moves along the groove with the horizontal sliding plate 2-2 to fix the position of the horizontal sliding plate 2-2.

[0062] The bottom of the sturdy bracket 2-11 is bolted to the insulating plate 2-3, and the side is bolted to the lifting support column 2-9.

[0063] The lifting slide 2-8 is mounted on the lifting support 2-9, and lifting locking handles 2-7 are installed on the upper and lower sides of the lifting slide 2-8. Stainless steel telescopic tubes 2-4 of different sizes are installed in the middle of multiple lifting slides 2-8.

[0064] The stainless steel telescopic tube 2-4 has a quick-release reducing bushing 2-12 or a special-shaped claw 2-13 installed in the inner hole on the front side.

[0065] The lifting support column 2-9 can move horizontally along the Y-axis via the linear guide rail 2-6, the lifting slide 2-8 can move along the Z-axis via the lifting support column 2-9, and the stainless steel telescopic tube 2-4 can move horizontally along the X-axis. During processing, the positions of the horizontal sliding plate 2-2, the lowering slide 2-8, and the stainless steel telescopic tube 2-4 can be adjusted and fixed using the sliding plate locking handle 2-10 and the lifting locking handle 2-7, achieving effective support for parts in different areas. Subsequent wire cutting processes are then performed.

[0066] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic positioning and clamping fixture for wire cutting of ultra-large parts, characterized in that, The automatic positioning and clamping fixture for wire cutting of ultra-large parts includes: a positioning and locking fixture and an auxiliary support fixture. The positioning and locking fixture and the auxiliary support fixture are respectively installed on both sides of the worktable. The positioning and locking fixture is used to align and clamp the substrate, and the auxiliary support fixture is used to fix and support the ultra-large parts. The positioning and locking fixture includes a locking bracket (1-1), a clamping frame (1-8), a guide assembly, a positioning and locking handle (1-11), several tensioning components, and a reference bar. The locking bracket (1-1) is fixed on the worktable. The clamping frame (1-8) is movably positioned on the outer side of the locking bracket (1-1) facing the substrate via the guide assembly. The positioning and locking handle (1-11) is connected to the clamping frame (1-8) and is used to adjust and lock the relative position of the clamping frame (1-8) and the substrate. Several tensioning components are evenly and symmetrically distributed on two opposite sides of the locking bracket (1-1). One end of any tensioning component is fixed to the locking bracket (1-1), and the other end hooks onto the substrate and pulls the substrate toward the clamping frame (1-8) to clamp the substrate. The reference bar is located on the worktable and is used for positioning when placing the substrate. The auxiliary support fixture includes a slide base (2-1), a horizontal slide plate (2-2), a slide plate locking handle (2-10), a lifting column (2-9), a lifting slide (2-8), a lifting locking handle (2-7), a telescopic tube (2-4), and a flexible support component. The slide base (2-1) is fixed on the worktable. The horizontal slide plate (2-2) is slidably mounted on the slide base (2-1). The slide plate locking handle (2-10) is connected to the horizontal slide plate (2-2) to fix the position of the horizontal slide plate (2-2). The lifting column (2-9) is fixed on the horizontal slide plate (2-2). The lifting slide (2-8) is movably mounted on the lifting column (2-9) and fixed in position by the lifting locking handle (2-7). One end of the telescopic tube (2-4) is fixed on the lifting slide (2-8), and the other end is connected to the flexible support component used to support the parts.

2. The automatic positioning and clamping fixture for wire cutting of ultra-large parts according to claim 1, characterized in that, The guide assembly includes a guide rod (1-10), an adjusting ring (1-14), and a spring (1-9). The guide rod (1-10) extends along the moving direction of the clamping frame (1-8) and is movably mounted on the locking bracket (1-1). One end of the guide rod (1-10) is fixed on the clamping frame (1-8). The adjusting ring (1-14) is fixedly sleeved on the guide rod (1-10), and the spring (1-9) is sleeved on the guide rod (1-10) and located between the adjusting ring (1-14) and the first side of the locking bracket (1-1).

3. The automatic positioning and clamping fixture for wire cutting of ultra-large parts according to claim 1, characterized in that, Each tensioning assembly includes a tensioning rod (1-5), a hook (1-6), and a rod locking handle (1-12). One end of the tensioning rod (1-5) is fixed to the locking bracket (1-1) via the rod locking handle (1-12). The hook (1-6) is located at the other end of the tensioning rod (1-5). The hook (1-6) is used to hook the side of the substrate that contacts the part and pull the substrate toward the top clamping frame (1-8).

4. The automatic positioning and clamping fixture for wire cutting of ultra-large parts according to claim 3, characterized in that, Each tensioning assembly also includes a preload (1-13) located at one end of the tensioning rod (1-5) fixed to the locking bracket (1-1), the preload (1-13) being used to provide preload to the tensioning rod (1-5) before the tensioning rod (1-5) is fixed by the rod locking handle (1-12).

5. The automatic positioning and clamping fixture for wire cutting of ultra-large parts according to claim 1, characterized in that, The positioning and locking fixture also includes a top pressure plate (1-2) and a vertical locking rod (1-3). One end of the vertical locking rod (1-3) is fixed to the locking bracket (1-1), and the other end is fixed to the top pressure plate (1-2). The top pressure plate (1-2) straightens and clamps the substrate from above.

6. The automatic positioning and clamping fixture for wire cutting of ultra-large parts according to claim 1, characterized in that, The positioning and locking fixture also includes an insulating plate (1-4), which is pressed and fixed to the side of the base plate support pad of the worktable by the insulating plate (1-4).

7. The automatic positioning and clamping fixture for wire cutting of ultra-large parts according to claim 1, characterized in that, The auxiliary support fixture also includes a linear guide rail (2-6), which is fixed on the surface of the slide base (2-1). The horizontal slide plate (2-2) is slidably mounted on the slide base (2-1) via the linear guide rail (2-6).

8. The automatic positioning and clamping fixture for wire cutting of ultra-large parts according to claim 7, characterized in that, The auxiliary support fixture also includes a slide guide groove (2-5), which is located on the surface of the slide base (2-1). The slide guide groove (2-5) has a groove, and the slide locking handle (2-10) moves along the groove with the horizontal slide (2-2).

9. The automatic positioning and clamping fixture for wire cutting of ultra-large parts according to claim 1, characterized in that, The auxiliary support fixture also includes an insulating plate (2-3), which is located between the lifting support column (2-9) and the horizontal sliding plate (2-2).

10. The automatic positioning and clamping fixture for wire EDM of ultra-large parts according to any one of claims 1 to 9, characterized in that, The flexible support uses a quick-release variable diameter bushing (2-12) or a special-shaped claw (2-13).

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