Tool magazine support tool

Abstract

The invention relates to a tool magazine support tool which is characterized in that the top end of a base is provided with a bearing structure used for bearing a special-shaped tool magazine and providing an installation reference, the bearing structure is provided with a bolt connecting piece used for connecting the bearing structure with the base, and the top end of the base is provided with an anti-displacement check block used for limiting the tool magazine; the upper surface of the base is provided with a matching face complementary with the bottom face of the special-shaped tool magazine in shape. Placing a bearing structure and aligning the bearing structure with the through hole; the bottom face of the special-shaped tool magazine is automatically attached to the profiling face of the base, and the special-shaped tool magazine is preliminarily lifted by a bearing structure; the high-strength bolt connecting piece penetrates through the bearing structure and the base from bottom to top, is screwed into the tool magazine threaded hole and then is tightened step by step, and main body rigid connection is formed; the anti-displacement check block is welded to the base according to the designed position, and it is ensured that the anti-displacement check block is tightly attached to the side wall of the tool magazine; according to the method, precise adaptation and stable installation of the special-shaped tool magazine are achieved, the vibration resistance is remarkably improved, and long-term operation precision and service life are ensured.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool accessories, specifically a tool magazine support fixture. Background Technology

[0002] In the field of precision machining equipment, vertical machining centers with disc-shaped tool magazines often have a height difference structure because they need to accommodate the storage of multiple tool specifications and the function of quick tool changing. Their installation requires the use of special brackets and tooling to achieve stable fixation.

[0003] In current technology, the tool magazine bracket is a key component in the CNC machine tool tool magazine system. It is mainly used to fix and support the tool holder or tool to ensure the stability and accuracy of the tool changing process. The tool magazine bracket mostly adopts a single plane base design.

[0004] However, most tool magazine supports use a single-plane base design, which cannot adapt to the height differences of irregularly shaped tool magazines, easily leading to uneven stress after installation. Furthermore, some supports are only fixed by simple bolt connections, lacking targeted load-bearing structures and vibration control designs. This not only affects the tool changing accuracy and operational stability of the tool magazine, but may also shorten the service life of the tool magazine and the support, making it difficult to meet the requirements for stable installation and long-term accurate operation of irregularly shaped tool magazines. Therefore, a tool magazine support fixture is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a tool magazine support fixture.

[0006] The technical solution adopted by this invention to solve its technical problem is: a tool magazine support fixture, including a base, a bearing structure for supporting irregularly shaped tool magazines and providing an installation reference is provided at the top of the base, bolts for connecting the bearing structure and the base are provided on the bearing structure, an anti-displacement block for restricting the tool magazine is provided at the top of the base, and a mating surface complementary to the bottom surface of the irregularly shaped tool magazine is provided on the upper surface of the base. The bearing structure is a rigid frame, and the anti-displacement block is provided on the base and abuts against the side of the irregularly shaped tool magazine to restrict its horizontal displacement.

[0007] Preferably, the mating surface of the base includes a local stepped structure machined according to the drop of the bottom surface of the irregular tool magazine; it is usually made of thick steel plate by milling; its core feature is that the upper surface is not a plane, but a complementary mating surface precisely machined by CNC programming according to the actual three-dimensional shape of the bottom surface of the target irregular tool magazine.

[0008] Preferably, the bearing structure is fixedly connected to the base by bolts; the bearing structure is a rigid frame welded from steel profiles, and the bearing structure is fixed to the upper surface of the base. Its top surface is a precision-machined horizontal reference surface, and its position precisely corresponds to the relatively flat area at the bottom of the irregular tool magazine.

[0009] Preferably, the bearing structure is provided with a through hole for bolt connectors to pass through, and the through hole is coaxially aligned with the corresponding through hole on the base and the threaded hole on the bottom surface of the irregular tool magazine; the bearing structure actively supports most of the weight of the irregular tool magazine, provides it with a stable and accurate mounting and positioning surface, and effectively transfers the vertical load to the base.

[0010] Preferably, there are two or more anti-displacement blocks, which are respectively set near the center of gravity of the irregular tool magazine and / or on the side of the overhanging part; wherein the anti-displacement blocks are the key to improving the dynamic stability of the present invention; there are two or more of them, preferably arranged on both sides near the projected position of the center of gravity of the irregular tool magazine, and on the outside of the overhanging part of the tool magazine.

[0011] Preferably, the anti-displacement block is rectangular in shape and is fixed to the base by welding.

[0012] Preferably, the contact surface of the anti-displacement block that abuts against the side of the irregular tool magazine is a plane, and it maintains a fit with the side without gap or with a small gap; wherein the side of the anti-displacement block near the tool magazine is a precision-machined plane, which serves as the contact surface; after installation, this contact surface should maintain a tight fit with the corresponding side wall of the irregular tool magazine without gap or with a small gap.

[0013] Preferably, the contact height between the anti-displacement block and the irregularly shaped tool magazine is not lower than its center of gravity height to ensure effective resistance to overturning moment; the function of the anti-displacement block is not to bear the main vertical load; its core function is to provide additional, rigid X-axis and Y-axis displacement constraints in addition to the bolt preload.

[0014] Preferably, the bolted connector is used to pass through the base and the load-bearing structure and to securely connect the irregularly shaped tool magazine to both.

[0015] Preferably, the bolted connector includes a high-strength bolt and a mating nut and washer. The high-strength bolt passes sequentially through a through hole on the load-bearing structure and a corresponding through hole on the base, and is finally screwed into a pre-machined internal thread hole on the bottom surface of the irregular-shaped tool magazine. The function of the bolted connector is to apply a specified torque to tighten the nut, generating a strong preload force that tightly presses and pulls the irregular-shaped tool magazine, the load-bearing structure, and the base into a rigid whole. This is the most important mechanical constraint to resist separation and shear displacement between components.

[0016] The advantages of this invention are: This invention involves fixing the pre-machined base to a predetermined position on the machine tool; placing the supporting structure on the base, aligning it with the through hole, and then installing the irregularly shaped tool magazine onto the fixture, where its bottom surface naturally falls into the conformal mating surface of the base and is initially supported and positioned by the top surface of the supporting structure; then inserting high-strength bolts from bottom to top, passing through the supporting structure and the base, screwing them into the threaded holes of the tool magazine, and tightening them step by step according to process requirements to complete the rigid connection of the main body; before or after hoisting the tool magazine, welding the anti-displacement block 300 to the base according to the design position; finally, after installation, ensuring that the anti-displacement block and the side wall of the tool magazine achieve a preset tight fit; and checking all connection torques to confirm that the tool magazine does not wobble and that there are no obvious gaps between the mating surfaces. This solution achieves precise adaptation and stable support for the height difference of the disc-shaped tool magazine in vertical machining centers, significantly improving the installation stability of the tool magazine, effectively dispersing the stress generated by machining vibration, reducing the deformation of the tool magazine and support, ensuring the long-term tool changing accuracy and operational stability of the irregular tool magazine, and extending the service life of the tool magazine and support. It solves the problems of not being able to adapt to the height difference of irregular tool magazines, which can easily lead to uneven stress after tool magazine installation; and some supports are only fixed by simple bolt connections, lacking targeted load-bearing structures and vibration control designs, which not only affect the tool changing accuracy and operational stability of the tool magazine, but may also shorten the service life of the tool magazine and support, making it difficult to meet the requirements of stable installation and long-term accurate operation of irregular tool magazines. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the base structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the anti-displacement block structure of the present invention. Figure 5 This is a schematic diagram of the load-bearing structure of the present invention.

[0019] In the diagram: 100, base; 200, load-bearing structure; 300, anti-displacement block; 400, bolt connector. Detailed Implementation

[0020] 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 some embodiments of the present invention, and not all embodiments. 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.

[0021] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail. This application discloses a tool magazine support fixture, including a base 100. The top of the base 100 is provided with a bearing structure 200 for supporting an irregularly shaped tool magazine and providing an installation reference. The bearing structure 200 is provided with bolted connectors 400 for connecting the bearing structure 200 and the base 100. The top of the base 100 is provided with an anti-displacement block 300 for restricting the tool magazine. The upper surface of the base 100 is provided with a mating surface that is complementary to the shape of the bottom surface of the irregularly shaped tool magazine. The bearing structure 200 is a rigid frame. The anti-displacement block 300 is provided on the base 100 and abuts against the side of the irregularly shaped tool magazine to restrict its displacement in the horizontal direction.

[0022] The mating surface of the base 100 includes a locally stepped structure machined according to the elevation difference of the bottom surface of the irregularly shaped tool magazine. The base 100 is the mounting base of the tooling and is usually milled from a thick steel plate. Its core feature is that the upper surface is not flat, but a complementary mating surface precisely machined by CNC programming according to the actual three-dimensional shape of the bottom surface of the target irregularly shaped tool magazine. This mating surface accurately replicates all the elevation differences at the bottom of the tool magazine, forming a corresponding locally stepped structure. For example, if there is a 10mm high boss on the bottom surface of the tool magazine, a 10mm deep groove or stepped surface will be machined at the corresponding position on the base 100. This design ensures that the bottom surface of the tool magazine and the upper surface of the base 100 achieve maximum surface contact during installation, eliminating installation gaps at the source and achieving uniform load distribution.

[0023] Meanwhile, before manufacturing, the base 100 needs to use three-dimensional scanning or precision mapping to obtain accurate data of the bottom surface of the tool magazine, and generate machining code for the base 100 accordingly; the base 100 itself can be firmly fixed to the machine tool bed or a specific foundation with anchor bolts through the mounting holes on its lower surface.

[0024] The base 100 serves as the mounting base and load-bearing foundation for the entire tool magazine support fixture. It bears the entire weight of the load-bearing structure 200, the anti-displacement stop 300, and the irregularly shaped tool magazine, transferring all loads to the machine tool bed or foundation plane. The rationality of its structural design directly affects the positioning accuracy and stability of the entire fixture. To accommodate the irregular shape of the tool magazine's bottom surface, the base 100 has undergone targeted optimization design. Specific structural details are as follows: The base 100 is typically made of high-strength steel plate with a thickness of 50-80mm, precision milled. It uses Q355B high-strength steel, which features high strength, good toughness, excellent weldability, and stable processing performance. This allows it to effectively withstand the weight of the irregularly shaped tool magazine and the vibration loads generated during machine tool processing, preventing deformation and settlement of the base itself. Before processing, the thick steel plate needs to be pre-treated, including rust removal, oxide scale removal, and leveling, to ensure a smooth and defect-free surface, laying the foundation for subsequent precision machining.

[0025] The core feature of the base 100 lies in its upper surface, which is not a traditional planar structure. Instead, it is a complementary mating surface formed by acquiring precise data through 3D scanning and precision mapping based on the actual three-dimensional shape of the bottom surface of the target irregular-shaped tool magazine, followed by CNC programming and precision milling. This mating surface can accurately replicate all the height differences and uneven structures at the bottom of the tool magazine, forming a completely corresponding local stepped structure. This ensures that the base 100 achieves maximum surface contact with the bottom surface of the irregular-shaped tool magazine, eliminating installation gaps at the source, achieving uniform load distribution, and improving positioning accuracy and stability.

[0026] Specifically, the machining precision of the local stepped structure strictly adheres to design requirements. The height difference and dimensional error of the steps are controlled within ±0.02mm, and the surface roughness is controlled below Ra1.6μm to ensure the fitting accuracy with the bottom surface of the irregularly shaped tool magazine. For example, if the bottom surface of the irregularly shaped tool magazine has a 10mm high, 20mm×30mm boss for positioning or support, a 10mm deep, 20mm×30mm groove or stepped surface will be machined at the corresponding position on the base 100. The mating clearance between the boss and the groove / step surface is controlled between 0.01-0.03mm to achieve a tight fit. If the bottom surface of the tool magazine has a 5° inclined surface, a 5° inclined mating surface will also be machined at the corresponding position on the base 100 to ensure a complete fit and avoid local suspension. This contour-following design allows the weight of the tool magazine to be evenly distributed across the entire mating surface of the base 100, avoiding local stress concentration and extending the service life of the base and the tool magazine.

[0027] To obtain accurate 3D data of the bottom surface of the irregularly shaped tool magazine, a high-precision 3D scanner is used to comprehensively scan the bottom surface of the tool magazine before manufacturing the base 100, acquiring complete 3D point cloud data. For hidden areas that cannot be directly scanned, precision calipers, micrometers, projectors, and other tools are used for supplementary mapping to ensure the completeness and accuracy of the data. Subsequently, the acquired 3D data is imported into CAD design software for model reconstruction, generating a 3D model of the bottom surface of the irregularly shaped tool magazine. Based on this model, the 3D structure of the mating surfaces of the base 100 is designed, generating CNC machining codes (G-code, M-code), which are then imported into a CNC milling machine for precision milling. During the machining process, online detection technology is used to monitor the machining dimensions and accuracy of the mating surfaces in real time, adjusting machining parameters promptly to ensure that the finished mating surfaces are completely consistent with the design model and meet installation requirements.

[0028] Furthermore, the lower surface of the base 100 is designed as a flat mounting surface with a surface roughness controlled below Ra3.2μm, facilitating contact with the machine tool bed or foundation plane. The base 100 has 4-8 symmetrically arranged anchor bolt holes evenly distributed throughout its upper and lower surfaces. These holes are used to securely fix the base 100 to the machine tool bed or reinforced foundation plane using high-strength anchor bolts. The anchor bolts are grade 10.9 high-strength bolts, used in conjunction with flat washers, spring washers, and nuts. A torque wrench is used to tighten the bolts to the specified torque value, ensuring that the base 100 does not experience any horizontal displacement or vertical settlement after installation, providing a stable foundation for the subsequent installation of other components and the fixation of the tool magazine.

[0029] Meanwhile, the base 100 is pre-drilled with multiple through holes for connecting the support structure 200. The position and size of the through holes correspond one-to-one with the through holes on the bottom of the support structure 200, with the hole diameter error controlled within ±0.01mm. The axis of the through holes is perpendicular to the mating surface of the base 100, with a perpendicularity error ≤0.02mm / m, ensuring that the bolt connector 400 can pass through smoothly, achieving precise connection and rigid fixation between the support structure 200 and the base 100. The inner wall of the through holes is chamfered to prevent the bolt from scratching the threads when passing through, and also to facilitate the installation and removal of the bolts. The load-bearing structure 200 is fixedly connected to the base 100 by bolt connectors 400. The load-bearing structure 200 is a rigid frame welded from steel profiles. The load-bearing structure 200 is fixed to the upper surface of the base 100. Its top surface is a precision-machined horizontal reference surface, which is precisely positioned to correspond to the relatively flat area at the bottom of the irregular tool magazine.

[0030] The load-bearing structure 200 is rigidly connected to the base 100 by bolt connectors 400; the bottom of the load-bearing structure 200 is provided with through holes, which are coaxially aligned with the corresponding through holes preset on the base 100.

[0031] The main function of the load-bearing structure 200 is to actively support most of the weight of the irregular tool magazine, provide it with a stable and precise mounting and positioning surface, and effectively transfer the vertical load to the base 100.

[0032] The load-bearing structure 200 is the core component that actively supports most of the weight of the irregularly shaped tool magazine and provides a precise installation positioning surface. It is fixedly connected to the base 100 via bolt connectors 400. Its rigidity and positioning accuracy directly affect the installation stability and positioning accuracy of the tool magazine. To meet the load-bearing requirements of the irregularly shaped tool magazine, the load-bearing structure 200 is designed as a rigid frame structure. Specific structural details are as follows: The load-bearing structure 200 is welded from structural steel, specifically Q235B steel. The specifications and models of the steel are rationally selected based on the weight, dimensions, and center of gravity distribution of the irregularly shaped tool magazine to ensure sufficient rigidity and load-bearing capacity, preventing deformation under the weight of the tool magazine. For example, for irregularly shaped tool magazines weighing 500-1000 kg, the load-bearing structure 200 can be welded from 10# channel steel and 80×80×5mm square steel; for irregularly shaped tool magazines weighing more than 1000 kg, 12#-14# channel steel and 100×100×6mm square steel can be used, ensuring that the rated load-bearing capacity of the load-bearing structure 200 is greater than 1.5 times the weight of the tool magazine, leaving sufficient safety margin.

[0033] The welding process for the load-bearing structure 200 strictly adheres to welding specifications, employing carbon dioxide gas shielded welding. The welding current is controlled at 180-220A, the welding voltage at 22-26V, and the welding speed at 15-20cm / min to ensure the strength and toughness of the weld. The weld height is not less than the wall thickness of the steel section, and the weld surface is smooth, free of porosity, cracks, slag inclusions, and other defects. After welding, the load-bearing structure 200 undergoes stress-relief annealing. The welded structure is placed in an annealing furnace, slowly heated to 600-650℃, held for 2-3 hours, and then slowly cooled to room temperature. This process eliminates internal stress generated during welding, preventing deformation of the load-bearing structure 200 due to stress release and ensuring its structural stability and rigidity.

[0034] The support structure 200 is fixed at a designated position on the upper surface of the base 100. Its position precisely corresponds to the relatively flat area at the bottom of the irregularly shaped tool magazine, which is typically the main load-bearing part of the tool magazine and effectively transfers the weight of the tool magazine to the base 100. The bottom surface of the support structure 200 is tightly fitted to the mating surface of the base 100, with the fitting gap controlled within 0.03mm to ensure uniform load transfer. Its top surface is a precision-milled horizontal reference surface with a levelness error controlled within 0.02mm / m and a surface roughness controlled below Ra1.6μm. This serves as the installation and positioning reference surface for the irregularly shaped tool magazine, ensuring that the tool magazine is level after installation and preventing tool changing accuracy from being affected by installation tilt.

[0035] To achieve a precise connection with the base 100, the bottom of the support structure 200 is provided with multiple through holes. These through holes are coaxially aligned with corresponding pre-set through holes on the base 100, with a coaxiality error ≤0.02mm. The diameter of the through holes matches the bolt diameter of the bolt connector 400, typically 0.2-0.3mm larger, to facilitate the passage and installation of the bolt connector 400. The number of through holes is determined based on the dimensions of the support structure 200 and the weight of the tool magazine, typically 4-6, symmetrically arranged at the bottom of the support structure 200 to ensure uniform stress distribution after the support structure 200 is connected to the base 100, avoiding localized stress concentration.

[0036] The main functions of the load-bearing structure 200 are threefold: First, it actively supports most of the weight of the irregularly shaped tool magazine, providing a stable and precise mounting surface to ensure the horizontality and positioning accuracy of the tool magazine after installation. Second, it effectively transfers the vertical load of the irregularly shaped tool magazine to the base 100, and then from the base 100 to the machine tool bed, achieving graded load transfer and uniform distribution, avoiding localized stress concentration. Third, it enhances the overall rigidity of the entire support fixture, working in conjunction with the base 100 to resist vibrations generated during machine tool processing, reducing tool magazine sway and displacement, and improving dynamic stability. Furthermore, the height of the load-bearing structure 200 can be adjusted according to the installation height requirements of the tool magazine. By increasing or decreasing the number of steel layers or selecting steel sections of different heights, it can accommodate different models and installation heights of irregularly shaped tool magazines, improving the versatility of the fixture.

[0037] There are two or more anti-displacement blocks 300, which are respectively set near the center of gravity of the irregular tool magazine and / or on the side of the overhanging part; the anti-displacement blocks 300 are the key to improving the dynamic stability of the present invention. There are two or more of them, preferably arranged on both sides near the projected position of the center of gravity of the irregular tool magazine, and on the outside of the overhanging part of the tool magazine; the anti-displacement blocks 300 are rectangular in shape and are firmly fixed to the upper surface or side of the base 100 by welding.

[0038] The anti-displacement block 300 has a precision-machined flat surface on the side closest to the tool magazine, serving as the contact surface. After installation, this contact surface should maintain a tight fit with the corresponding side wall of the irregularly shaped tool magazine with no gap or only a small gap. In addition, the contact height between the anti-displacement block 300 and the side wall of the tool magazine should not be lower than the overall center of gravity height of the tool magazine to ensure effective resistance to overturning moment.

[0039] The function of the anti-displacement stop 300 is not to bear the main vertical load. Its core function is to provide additional, rigid X and Y displacement constraints in addition to the bolt preload. When vibrations occur during machine tool processing, the stop can immediately prevent any minor slippage or wobbling that may occur in the tool magazine, and directly transmit the horizontal impact force to the robust base 100, thereby significantly attenuating vibration and protecting the bolt from the effects of alternating shear forces.

[0040] The anti-displacement stop 300 is a key component in this application for improving the dynamic stability of the tool magazine. It is mainly used to limit the horizontal displacement of the irregularly shaped tool magazine, resist vibrations and impacts generated during machine tool processing, prevent the tool magazine from slipping, shaking, or overturning, protect the bolted connector 400 from alternating shear forces, and extend the service life of the bolts. Its structural design and arrangement directly affect the anti-displacement effect; specific details are as follows: The number of anti-displacement blocks 300 is two or more, with the specific number determined based on the dimensions, center of gravity distribution, and overhang of the irregular-shaped tool magazine. Typically, 4-6 blocks are used, preferably arranged on both sides near the projected center of gravity of the irregular-shaped tool magazine and on the outer sides of the overhanging parts. This arrangement can constrain the tool magazine from multiple directions, effectively resisting horizontal displacement at various angles. Especially for irregular-shaped tool magazines with a shifted center of gravity and large overhangs, it can effectively balance the overturning moment generated by the overhanging parts, improving the installation stability of the tool magazine. For example, for an irregular-shaped tool magazine with a center of gravity biased to one side and an overhanging structure on the other side, two anti-displacement blocks 300 can be arranged on each side of the projected center of gravity, and two more anti-displacement blocks 300 can be arranged on the outer sides of the overhanging parts, forming a comprehensive horizontal constraint.

[0041] The anti-displacement block 300 has a rectangular block structure, machined from Q355B high-strength steel. Its height is determined based on the center of gravity of the irregularly shaped tool magazine, typically not less than 2 / 3 of the overall center of gravity height of the tool magazine, and not less than 100mm, ensuring effective resistance to overturning moments and limiting the horizontal displacement of the tool magazine. The thickness of the anti-displacement block 300 is 20-30mm, and the width is 50-80mm. The specific dimensions are determined based on the side wall dimensions of the tool magazine and the stress conditions, ensuring sufficient rigidity and strength to prevent deformation and damage under impact.

[0042] The anti-displacement block 300 is firmly fixed to the upper surface or side of the base 100 by welding. The welding process is the same as that of the load-bearing structure 200, using carbon dioxide gas shielded welding to ensure weld strength. After welding, stress relief treatment is performed to prevent welding deformation from affecting the positioning accuracy of the block. During welding, the positioning must be strictly in accordance with the positioning dimensions determined in the design drawings. The positional error of the block must be controlled within ±0.02mm to ensure that the block can accurately fit against the side wall of the irregular tool magazine after installation.

[0043] The anti-displacement stop 300 has a precision-machined flat surface on the side closest to the tool magazine, serving as the contact surface with the tool magazine's side wall. The surface roughness of this contact surface is controlled below Ra 1.6μm, and the flatness error is controlled within 0.02mm to ensure precise contact with the tool magazine's side wall. After installation, this contact surface should maintain a tight fit with the corresponding side wall of the irregularly shaped tool magazine, with no or minimal gaps. This effectively limits the horizontal displacement of the tool magazine without causing deformation or installation difficulties due to excessive tightness. For minor dimensional errors, fine adjustments can be made by grinding the contact surface of the stop to ensure the required contact precision.

[0044] It is important to note that the anti-displacement block 300 does not bear the main vertical load. Its core function is to provide additional, rigid X- and Y-axis displacement constraints beyond the bolt preload. When machine tool vibrations occur, tools are changed rapidly, or the machining load changes, the tool magazine may experience horizontal impact forces or slippage. In such cases, the anti-displacement block 300 immediately takes effect, preventing any minor slippage or wobbling of the tool magazine and directly transmitting the horizontal impact force to the robust base 100. This significantly attenuates vibrations, protects the bolted connection 400 from alternating shear forces, prevents bolt loosening and breakage, and ensures the long-term stable operation of the tool magazine.

[0045] The bolt connector 400 is used to pass through the base 100 and the bearing structure 200 and to fasten the irregular tool magazine to both. The bolt connector 400 includes a high-strength bolt, a matching nut and a flat washer. During installation, the high-strength bolt passes through the through hole on the bearing structure 200 and the corresponding through hole on the base 100 in sequence, and is finally screwed into the pre-machined internal thread hole on the bottom surface of the irregular tool magazine.

[0046] The function of the bolt connector 400 is to tighten the nut by applying a specified torque. The bolt connector 400 generates a strong preload force, which tightly presses and pulls the irregular tool magazine, the load-bearing structure 200, and the base 100 into a rigid whole. This is the most important mechanical constraint to resist separation and shear displacement between components.

[0047] Bolt connector 400 is the core component for achieving a rigid connection between the irregular-shaped tool magazine, the load-bearing structure 200, and the base 100. It passes through the base 100 and the load-bearing structure 200, securing the irregular-shaped tool magazine to both. By applying a preload, the three components are tightly pressed and tightened into a rigid whole, providing the primary mechanical constraint against separation and shear displacement between components. Its selection and installation accuracy directly affect the connection's strength and overall rigidity, as detailed below: Bolt connector 400 uses grade 10.9 high-strength bolts, used in conjunction with matching nuts, flat washers, and spring washers. Grade 10.9 high-strength bolts are characterized by high strength, high hardness, and strong shear resistance, with a tensile strength ≥1040MPa and a yield strength ≥940MPa. They can withstand large preloads and shear loads, meeting the strength requirements for the connection between the irregular tool magazine, the load-bearing structure 200, and the base 100. The bolt specifications are determined based on the stress conditions of the connection, typically M16-M24. The bolt length is determined based on the total thickness of the base 100 and the load-bearing structure 200, as well as the depth of the threaded hole on the bottom surface of the tool magazine, ensuring that the length of the bolt screwed into the threaded hole on the bottom surface of the tool magazine is not less than 1.5 times the bolt diameter, guaranteeing a secure connection.

[0048] High-strength flat washers are selected, with the same material as the bolts and a thickness of 3-5mm. They are used to increase the contact area between the bolts and the load-bearing structure 200 and the base 100, to disperse the pressure generated by the bolt preload, and to avoid local stress concentration that could lead to component deformation or thread damage. Standard spring washers are selected, made of 65Mn spring steel, which has good elasticity and toughness and can effectively prevent the bolts from loosening in a vibration environment, ensuring the reliability of the connection.

[0049] During installation, high-strength bolts are sequentially passed through the through holes on the bearing structure 200 and the corresponding through holes on the base 100, and finally screwed into the pre-machined internal threaded holes on the bottom surface of the irregular-shaped tool magazine. Before installation, the bolts, nuts, flat washers, spring washers, and all through holes and internal threaded holes must be cleaned to remove surface oil, rust, impurities, etc., to ensure that the bolts can be screwed in smoothly, while avoiding impurities from affecting the connection accuracy and firmness. The specifications of the internal threaded holes match the bolts, with a thread accuracy of 6H, to ensure the fit accuracy with the bolts and avoid problems such as stripping.

[0050] The core function of the bolted connector 400 is to apply a specified torque to tighten the nut, generating a strong preload on the bolt, thus tightly pressing and tightening the irregular tool magazine, the load-bearing structure 200, and the base 100 into a rigid whole. The magnitude of the preload is determined based on the bolt specifications, quantity, and weight of the tool magazine, and is typically controlled between 60% and 70% of the bolt's yield strength to ensure a firm connection without relative displacement. When tightening the nut, a calibrated torque wrench is used, and the operation is strictly performed according to the torque value and tightening sequence specified in the process documents. A symmetrical, step-by-step increasing method is usually adopted, tightening all bolts in stages. For example, first tighten all bolts to 50% of the specified torque, then to 80%, and finally to 100%, ensuring that the preload on each bolt is uniform and consistent, avoiding excessive local preload that could cause component deformation, or insufficient preload that could cause loosening.

[0051] In addition, the bolted connector 400 is equipped with anti-loosening measures. Besides using spring washers, thread-locking adhesive can be applied to the bolt-nut connection after the nut is tightened to further enhance the anti-loosening effect and ensure that the bolt will not loosen under long-term vibration. Simultaneously, protective caps can be installed on the exposed parts of the bolts to prevent dust, oil, and other impurities from entering the threaded connection and corroding the bolt and nut, thus extending the service life of the bolted connector 400. Working principle: First, basic positioning and fixation are performed. The precision-machined base 100 is transported to the designated installation position next to the machine tool, and its installation plane is calibrated using a level to ensure that the whole is in a level state. Then, through the pre-set anchor bolt holes on its bottom, high-strength bolts are used to firmly fasten it to the machine tool bed or the reinforced base surface, ensuring that the base will not shift during subsequent operations.

[0052] Next, place the support structure 200 on top of the base 100 and carefully adjust its position so that the pre-drilled through hole at its bottom is precisely aligned with the corresponding through hole on the base 100. This alignment process is crucial and forms the basis for the smooth connection of the bolts later. After the initial alignment is completed, it can be temporarily placed and the tool magazine installation stage can begin.

[0053] Then, the irregularly shaped tool magazine is moved above the fixture on which the support structure 200 has been placed, and slowly lowered. Since the upper surface of the base 100 is a contour-fitting surface specially machined according to the shape of the bottom surface of the tool magazine, during the descent, the bottom surface of the tool magazine will naturally and accurately "fall" into this complementary surface, achieving initial shape fitting; at the same time, the larger flat area of ​​the bottom of the tool magazine will sit on the finely machined top surface of the support structure 200, which provides stable initial support and positioning, thus completing the rough positioning of the tool magazine.

[0054] After rough positioning, high-strength bolt connectors 400 are inserted sequentially upwards from below the tooling, passing through the aligned through holes on the bearing structure 200 and the base 100, and finally screwed into the pre-drilled threaded holes on the bottom of the irregular tool magazine. A torque wrench is used, strictly following the torque values ​​and tightening sequence specified in the process documents. Typically, a symmetrical, step-by-step increasing method is used to tighten all bolts in stages. This process aims to use the bolt preload to tightly press the tool magazine, bearing structure 200, and base 100 together to form a highly rigid integral connection body.

[0055] Regarding the installation of the anti-displacement block 300, the welding process has some flexibility in terms of timing. It can be carried out before or after the hoisting of the tool magazine, depending on the convenience of on-site operation. The key is to firmly weld the anti-displacement block 300 at the designated position on the base 100 according to the positioning dimensions determined by the design drawings. The welding must ensure strength and control welding deformation to ensure the positioning accuracy of the block.

[0056] After all components are installed, the final adjustment and inspection phase begins. The fit between the anti-displacement block 300 and the irregularly shaped tool magazine sidewall must be carefully checked. Through fine-tuning or repair, ensure a tight fit as required by design, achieving a gapless or minimally controllable fit. Finally, a calibrated torque wrench must be used to thoroughly check the tightening torque of all bolt connections 400. Simultaneously, manually or with the aid of simple tools, check for any abnormal shaking of the tool magazine as a whole; visually inspect and use a feeler gauge to check for uneven gaps exceeding the allowable range on each major mating surface. Only when all inspection items pass can the entire tool magazine bracket fixture be considered installed and ready for use.

[0057] Through the above embodiments, the present invention constructs a multi-layered, high-rigidity constraint system, from the surface-fitting base 100 to the body-bearing structure 200, and then to point locking and line limiting. It effectively disperses static loads and dynamic stresses, greatly improving the installation accuracy, static rigidity, and vibration resistance of the irregular-shaped tool magazine, thereby ensuring the long-term reliable operation and machining accuracy of the machine tool.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A tool magazine support fixture, comprising a base (100), characterized in that: The top of the base (100) is provided with a support structure (200) for supporting the irregular tool magazine and providing an installation reference. The support structure (200) is provided with a bolt connector (400) for connecting the support structure (200) and the base (100). The top of the base (100) is provided with an anti-displacement block (300) for restricting the tool magazine. The upper surface of the base (100) is provided with a mating surface that is complementary to the shape of the bottom surface of the irregular tool magazine. The support structure (200) is a rigid frame. The anti-displacement block (300) is provided on the base (100) and abuts against the side of the irregular tool magazine to restrict its displacement in the horizontal direction.

2. The tool magazine support fixture according to claim 1, characterized in that: The mating surface of the base (100) includes a local stepped structure machined according to the drop of the bottom surface of the irregular tool magazine.

3. The tool magazine support fixture according to claim 1, characterized in that: The load-bearing structure (200) is fixedly connected to the base (100) by bolts (400).

4. The tool magazine support fixture according to claim 1, characterized in that: The bearing structure (200) is provided with a through hole for the bolt connector (400) to pass through, and the through hole is coaxially aligned with the corresponding through hole on the base (100) and the threaded hole on the bottom surface of the irregular tool magazine.

5. The tool magazine support fixture according to claim 1, characterized in that: The number of anti-displacement blocks (300) is two or more, and they are respectively set near the center of gravity of the irregular tool magazine and / or on the side of the overhang.

6. The tool magazine support fixture according to claim 1, characterized in that: The anti-displacement block (300) is rectangular in shape and is fixed to the base (100) by welding.

7. The tool magazine support fixture according to claim 1, characterized in that: The contact surface between the anti-displacement block (300) and the side of the irregular tool magazine is a plane, and it maintains a fit with the side with no gap or a small gap.

8. The tool magazine support fixture according to claim 1, characterized in that: The contact height between the anti-displacement block (300) and the irregular-shaped tool magazine is not lower than its center of gravity height.

9. A tool magazine support fixture according to claim 1, characterized in that: The bolt connector (400) is used to pass through the base (100) and the load-bearing structure (200) and to securely connect the irregular tool magazine to both.

10. A tool magazine support fixture according to claim 1, characterized in that: The bolted connector (400) includes a high-strength bolt and a mating nut and washer.

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