A fixing tool for 3D printing part substrate separation

Abstract

The utility model provides a kind of fixed tool for 3D printing part substrate separation, it solves the problem of inaccurate positioning, cutting range is limited, operation is complicated and high labor cost of flat tongs fixed mode positioning.It is suitable for at least one side edge is fixed to the substrate of plane, the upper surface of substrate horizontal state is part placement plane, the bottom surface of substrate is plane structure, the bottom two corner positions of substrate vertical placement state are provided with corresponding positioning feature structure, it is characterized in that, it includes: base, the upper surface of the base is provided with several concave screw thread positioning holes;Alignment connecting block, it is vertically arranged, the bottom of length two ends is respectively provided with side convex locking protrusion, and at least one screw thread positioning hole is provided in horizontal thickness direction;Several tool fixing blocks, including long slot waist-shaped hole, locking pressure block;And fastener.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing tooling technology, specifically a fixing tooling for separating substrates of 3D printed parts. Background Technology

[0002] In the 3D printing process of metal products, separating the parts from the substrate via wire cutting is a crucial step. Current technology uses flat-jaw pliers to fix the parts and substrate in place, which has several drawbacks: First, the flat-jaw pliers lack sufficient positioning accuracy, making it difficult to guarantee accurate cutting positions and affecting the dimensional accuracy and quality of the separated parts. Second, the flat-jaw pliers themselves occupy space, reducing the cutting range and preventing the full utilization of the substrate's effective area, thus lowering material utilization. Third, the flat-jaw pliers must be disassembled each time the substrate is installed and adjusted, which is cumbersome, time-consuming, and requires two operators, resulting in high labor costs and low efficiency. Therefore, there is an urgent need to develop a new tooling to solve these problems. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a fixing fixture for separating substrates of 3D printed parts. It solves the problems of inaccurate positioning, limited cutting range, cumbersome operation, and high labor costs associated with the flat-jaw clamp fixing method. It enables rapid and accurate installation and positioning of 3D printed part substrates, ensures the safety of separation and cutting operations, reduces ineffective human operations, and significantly improves work efficiency.

[0004] A fixing fixture for separating substrates of 3D printed parts is applicable to fixing substrates with at least one flat side. The upper surface of the substrate in a horizontal state serves as the part placement plane, the bottom surface of the substrate is a planar structure, and corresponding positioning feature structures are provided at the bottom two corners of the substrate in a vertical placement state. The fixture is characterized by comprising:

[0005] The base has several internally recessed threaded positioning holes on its upper surface.

[0006] The alignment connecting block is arranged vertically, with side-protruding locking protrusions at the bottom of both ends of its length, and at least one threaded positioning hole in its horizontal thickness direction.

[0007] Several tooling fixing blocks, including elongated slotted oblong holes and locking pressure blocks;

[0008] And fasteners;

[0009] The upper surface of the base is a plane, which is used to place the planar side of the substrate. Two sets of alignment connecting blocks are fixed on the upper surface of the base by two pairs of tooling fixing blocks. Each set of alignment connecting blocks is set according to the positioning feature structure at the corresponding position on the bottom of the substrate. The alignment connecting blocks are fastened to the positioning feature structure by fasteners. The alignment connecting blocks and fasteners do not protrude from the component placement plane of the substrate. In the disassembled state, the component placement plane of the substrate is arranged vertically and located on the outer surface of the base.

[0010] Its further features are:

[0011] The two side protrusions of the alignment connecting block are pressed by the locking blocks of the corresponding tooling fixing blocks. The vertical bolt passes through the long slot waist-shaped hole and is fixed to the threaded positioning hole at the corresponding position. The setting of the long slot waist-shaped hole allows the spacing between the two sets of alignment connecting blocks to be adapted and adjusted according to the spacing between the two sets of positioning feature structures of the substrate, ensuring the good versatility of the entire fixing tooling.

[0012] The positioning feature structure includes a positioning notch recessed inward from the part placement plane and a corner positioning hole. The alignment connecting block has at least one large threaded hole and one small threaded hole arranged on its vertical surface. The alignment connecting block also has a left threaded hole, a middle threaded hole, and a right threaded hole arranged along the length of the base on its vertical surface. This allows the threaded positioning holes to be adapted to corner positioning holes of different diameters and positions, further ensuring the versatility of the entire fixing fixture.

[0013] The fastener is a bolt structure. The height of the bolt head is not higher than the concave depth of the positioning notch. The stud of the bolt structure passes through the corner positioning hole at the bottom and is threaded to the corresponding thread positioning hole. The bolt head is exposed on the part placement plane to ensure reliable separation of the part and the substrate during cutting.

[0014] With the structure of this utility model, the base, alignment connecting block, and tooling fixing block are all made of 40Cr material, which has good comprehensive mechanical properties, high strength, good toughness, and excellent wear resistance. It can withstand the impact and friction during the cutting process, ensuring that the tooling is not easily deformed or worn during long-term use, and maintaining high-precision positioning and reliable fixing performance. The alignment connecting block is fixed to the base through the tooling fixing block, and the alignment connecting block is fastened to the bottom two corners of the substrate in the vertical state by fasteners. The alignment connecting block and fasteners do not protrude beyond the part placement plane of the substrate, which makes positioning quick and convenient. It solves the problems of inaccurate positioning, limited cutting range, cumbersome operation, and high labor costs of the flat-jaw clamp fixing method, realizes the rapid and accurate installation and positioning of 3D printed part substrates, ensures the safety of separation and cutting operations, reduces ineffective human operations, and greatly improves work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main view structure of the fixing fixture of this utility model;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of the alignment connecting block of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the fixing fixture base plate of this utility model;

[0018] The names corresponding to the serial numbers in the diagram are as follows:

[0019] Substrate 100, component placement plane 101, bottom surface 102, plane side 103;

[0020] Positioning notch 1, corner positioning hole 2;

[0021] Base 10, threaded positioning hole 11, alignment connecting block 20, side protrusion locking protrusion 21, threaded positioning hole 22, large threaded hole 221, small threaded hole 222, tooling fixing block 30, long slot waist-shaped hole 31, locking pressure block 32, fastener 40, vertical bolt 50. Detailed Implementation

[0022] A fixture for separating substrates of 3D printed parts, see Figures 1-3 It is applicable to fixing a substrate 100 with at least one side being flat. The upper surface of the substrate 100 in the horizontal state is a part placement plane 101, the bottom surface 102 of the substrate 100 is a planar structure, and the bottom two corners of the substrate 100 in the vertical placement state are provided with corresponding positioning feature structures, including: base 10, alignment connecting block 20, several tooling fixing blocks 30, and fasteners 40.

[0023] The upper surface of the base 10 is provided with several internally recessed threaded positioning holes 11;

[0024] The alignment connecting block 20 is arranged vertically, with side-protruding locking protrusions 21 at the bottom of both ends of its length, and at least one threaded positioning hole 22 in its horizontal thickness direction.

[0025] Each set of tooling fixing blocks 30 includes a long slotted waist-shaped hole 31 and a locking pressure block 32;

[0026] The upper surface of the base 10 is a plane. The upper surface of the base 10 is used to place the planar side 103 of the substrate 100. Two sets of alignment connecting blocks 20 are fixed on the upper surface of the base 10 by two pairs of tooling fixing blocks 30. Each set of alignment connecting blocks 20 is set to the positioning feature structure at the corresponding position on the bottom of the substrate 100. The alignment connecting blocks 20 are fastened to the positioning feature structure by fasteners 40. The alignment connecting blocks 20 and the fasteners 40 do not protrude outward from the part placement plane 101 of the substrate 100. When the substrate is to be separated, the part placement plane 101 of the substrate 100 is arranged vertically and located on the outer surface of the base 10.

[0027] In a specific embodiment, the side protrusions 21 of the alignment connecting block 20 are pressed by the locking blocks 32 of the corresponding tooling fixing blocks 30. The vertical bolt 50 passes through the long slot waist-shaped hole 31 and is fixed to the threaded positioning hole 11 at the corresponding position. The setting of the long slot waist-shaped hole 31 makes the spacing between the two sets of alignment connecting blocks 20 adapted and adjusted according to the spacing between the two sets of positioning feature structures of the substrate 100, so as to ensure the good universality of the entire fixing tooling.

[0028] In a specific embodiment, positioning feature structures are provided at the four corners of the substrate 100 in the vertical placement state. The positioning feature structures include a positioning notch 1 that is recessed inward from the part placement plane and a corner positioning hole 2. At least one large threaded hole 221 and one small threaded hole 222 are arranged on the vertical surface of the alignment connecting block 20. Furthermore, a left threaded hole, a middle threaded hole, and a right threaded hole are arranged along the length direction of the base on the vertical surface of the alignment connecting block 20. This allows the threaded positioning hole 22 to be adapted to corner positioning holes 2 of different diameters and positions, further ensuring the universality of the entire fixing fixture.

[0029] Fastener 40 is a bolt structure. The height of the bolt head is not higher than the concave depth of the positioning notch 1. The stud of the bolt structure passes through the corner positioning hole 2 at the bottom position and is threaded to the corresponding thread positioning hole 22. The bolt head is exposed on the part placement plane 101 to ensure that the part and the substrate can be reliably separated in the cutting state.

[0030] During operation: First, clean the worktable and fixture surfaces of the wire EDM equipment to remove oil, iron filings, and other impurities, ensuring that the upper surface of the base serves as a clean and flat mounting reference surface. Then, check whether each component of the fixture is intact and whether the alignment connecting block and fixture fixing block are reliable. If any abnormalities are found, adjust or replace them promptly. Securely place the alignment connecting block on the base of the wire EDM equipment worktable using the fixture fixing block. Use tools such as the equipment coordinate reference or laser alignment instrument to precisely adjust the position of the alignment connecting block so that the fixture cutting positioning reference is accurately matched with the equipment cutting path. Initially fix the alignment connecting block to the upper surface of the base with vertical bolts. Thoroughly clean the side plane of the 3D printed substrate to be mounted, ensuring that there are no residual resin, metal powder, or other impurities. Gently place the substrate on the upper surface of the fixture base, ensuring that the positioning feature structure (such as positioning holes) of the substrate is precisely aligned with the corresponding features on the alignment connecting block. Then, tighten the fasteners to ensure a tight fit without gaps.

[0031] The base, alignment connecting block, and tooling fixing block are all made of 40Cr material, possessing excellent comprehensive mechanical properties, high strength, good toughness, and excellent wear resistance. They can withstand the impact and friction during the cutting process, ensuring that the tooling is not easily deformed or worn during long-term use, maintaining high-precision positioning and reliable fixing performance. The alignment connecting block is fixed to the base via the tooling fixing block, and the alignment connecting block is secured to the bottom two corners of the substrate in its vertical position by fasteners. Furthermore, the alignment connecting block and fasteners do not protrude beyond the part placement plane of the substrate, making positioning quick and convenient. This solves the problems of inaccurate positioning, limited cutting range, cumbersome operation, and high labor costs associated with flat-jaw clamp fixing methods. It enables rapid and accurate installation and positioning of 3D printed part substrates, ensuring the safety of separation and cutting operations, reducing ineffective human intervention, and significantly improving work efficiency.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixing fixture for separating a substrate from a 3D printed part, suitable for fixing a substrate with at least one flat side, wherein the upper surface of the substrate in a horizontal state is a part placement plane, the bottom surface of the substrate is a planar structure, and corresponding positioning feature structures are provided at the bottom two corners of the substrate in a vertical placement state, characterized in that... It includes: The base has several internally recessed threaded positioning holes on its upper surface. The alignment connecting block is arranged vertically, with side-protruding locking protrusions at the bottom of both ends of its length, and at least one threaded positioning hole in its horizontal thickness direction. Several tooling fixing blocks, including elongated slotted oblong holes and locking pressure blocks; And fasteners; The upper surface of the base is a plane, which is used to place the planar side of the substrate. Two sets of alignment connecting blocks are fixed on the upper surface of the base by two pairs of tooling fixing blocks. Each set of alignment connecting blocks is set according to the positioning feature structure at the corresponding position on the bottom of the substrate. The alignment connecting blocks are fastened to the positioning feature structure by fasteners. The alignment connecting blocks and fasteners do not protrude from the component placement plane of the substrate. In the disassembled state, the component placement plane of the substrate is arranged vertically and located on the outer surface of the base.

2. The fixture for separating substrates of 3D printed parts according to claim 1, characterized in that: The two side protrusions of the alignment connecting block are pressed by the locking blocks of the corresponding tooling fixing blocks, and the vertical bolt is fixed to the threaded positioning hole at the corresponding position after passing through the long slot waist-shaped hole.

3. The fixture for separating substrates of 3D printed parts according to claim 2, characterized in that: The positioning feature structure includes a positioning notch recessed inward from the part placement plane and a corner positioning hole. The alignment connecting block has at least one large threaded hole and one small threaded hole arranged on its vertical surface, and the alignment connecting block has a left threaded hole, a middle threaded hole and a right threaded hole arranged along the length direction of the base on its vertical surface.

4. The fixture for separating substrates of 3D printed parts according to claim 3, characterized in that: The fastener is a bolt structure. The height of the bolt head of the bolt structure is not higher than the concave depth of the positioning notch. The stud of the bolt structure passes through the corner positioning hole at the bottom position and is threaded to the corresponding thread positioning hole, and the bolt head is exposed on the part placement plane.

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