A demolding support base and a rail vehicle composite material component production apparatus

Abstract

The application discloses a demolding support base and a rail vehicle composite material part production device, and relates to the technical field of rail vehicles.The demolding support base comprises a base assembly, a rotating disc, a rolling body, a support seat, a lifting screw rod and a guide structure.The rotating disc is rotatably arranged on the base assembly and is used for rotating relative to the base assembly along the axis of the first direction.The rolling body is arranged between the base assembly and the rotating disc and is used for enabling the rotating disc to complete circumferential rotation.The support seat is arranged on the side of the rotating disc away from the base assembly and is used for supporting a demolding piece.The lifting screw rod is movably embedded in the rotating disc and is rotatably matched with the support seat and is used for driving the support seat to move along the first direction.The guide structure is connected between the support seat and the base assembly and is used for guiding the movement of the support seat.The demolding support base solves the problem that current devices are difficult to meet the requirements of high-precision bearing and stable support on the demolding piece.

Description

Technical Field

[0001] This application relates to the field of rail vehicle technology, and in particular to a demolding support base and a production equipment for composite material parts of rail vehicles. Background Technology

[0002] Currently, in the production process of large composite material parts (such as mandrels) for rail vehicles (such as EMU locomotives), the demolding process usually relies on hydraulic lifting platforms as the main support devices, which use hydraulic cylinders to lift the entire demolded part to achieve overall support.

[0003] However, given the large weight and complex structure of the demolding parts, the device is prone to lateral sway and longitudinal jamming during frequent reciprocating lifting operations, which leads to a gradual increase in the cumulative error of the hydraulic system, making it difficult to meet the requirements for high-precision load bearing and stable support of the demolding parts. Utility Model Content

[0004] The purpose of this application is to provide a demolding support base and a production equipment for composite material parts of rail vehicles, which solves the problem that the current equipment is difficult to meet the requirements for high-precision load bearing and stable support for demolded parts.

[0005] To achieve the above objectives, this application provides a demolding support base, comprising:

[0006] Base assembly;

[0007] A rotating disk is rotatably disposed on the base assembly for rotating relative to the base assembly along an axis in a first direction;

[0008] A rolling element is disposed between the base assembly and the rotating disk, for the rotating disk to complete circumferential rotation;

[0009] A support base is located on the side of the rotating disk opposite to the base assembly, and is used to support the demolding component;

[0010] A lifting screw is movably mounted on the rotating disk and rotates with the support base to drive the support base to move along a first direction;

[0011] A guide structure, connecting the support base and the base assembly, is used to guide the movement of the support base.

[0012] In some embodiments, the demolding support base further includes at least one pair of roller bodies, which are disposed on the support base for supporting the demolding component and conveying the demolding component along a second direction perpendicular to the first direction.

[0013] In some embodiments, two bearing seats are symmetrically arranged on the support base, and the at least one pair of roller bodies are rotatably and symmetrically distributed on the two bearing seats. Both bearing seats are provided with inclined surfaces to prevent the demolding parts from detaching.

[0014] In some embodiments, the guide structure includes two sets of guide rod assemblies, the guide rod assemblies comprising:

[0015] The first guide block is fixed to the base assembly;

[0016] The second guide block is fixed to the support base;

[0017] The guide rod is inserted and cooperates with the first guide block and the second guide block to guide the movement of the support base.

[0018] In some embodiments, the guide rod is T-shaped and includes an integrally formed horizontal bar body and a vertical bar body. The horizontal bar body is located on the side of the second guide block opposite to the first guide block, and the vertical bar is inserted and engaged with the first guide block and the second guide block.

[0019] In some embodiments, the demolding support base further includes a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate being fixed to the base assembly and the rotating disk respectively, and the rolling element being installed between the first limiting plate and the second limiting plate.

[0020] In some embodiments, the demolding support base further includes a limiting ring disposed between the first limiting plate and the second limiting plate, for limiting the rolling element to prevent the rolling element from disengaging from the first limiting plate and the second limiting plate.

[0021] In some embodiments, the base assembly includes:

[0022] The first base has a first hollow hole;

[0023] The second base is provided in the second hollow hole located on the outer periphery of the first base, and is used to support the first base;

[0024] The disc base is detachably connected to the first base and is used to support the first limiting disc.

[0025] In some embodiments, the rotating disk is provided with a circumferential scale to indicate the rotation angle of the rotating disk relative to the base assembly.

[0026] This application also provides a production equipment for composite material parts of rail vehicles, including the demolding support base described in any of the above claims.

[0027] Compared to the aforementioned background technology, the demolding support base provided in this application includes a base assembly, a rotating disk, rolling elements, a support seat, a lifting screw, and a guide structure. The rotating disk is rotatably mounted on the base assembly and is used to rotate relative to the base assembly along an axis in a first direction. The rolling elements are disposed between the base assembly and the rotating disk, allowing the rotating disk to complete circumferential rotation. The support seat is located on the side of the rotating disk opposite to the base assembly and is used to support the demolding component. The lifting screw is movably embedded in the rotating disk and rotatably engages with the support seat, driving the support seat to move along the first direction. The guide structure connects the support seat and the base assembly, guiding the movement of the support seat.

[0028] The beneficial effects of this type of demolding support base mainly include:

[0029] Firstly, the lifting screw is embedded in the rotating disk, threadedly engaged with the disk, and rotatably connected to the support base. When the rotating disk is rotated, the lifting screw rotates accordingly, generating axial displacement to achieve the up-and-down movement of the support base without causing it to rotate. This allows for highly precise and safe lifting operations, and also enables extremely precise load-bearing and support operations for the demolding components.

[0030] Secondly, the rolling elements are positioned between the base assembly and the rotating disk, forming a low-friction rolling support. The rotating disk can rotate smoothly and continuously 360° around the first direction axis. Compared with sliding or shim-type structures, the rolling friction is small and the backlash is small, significantly improving operational flexibility.

[0031] Third, the guide structure directly connects the support base to the base assembly, forming a closed force circuit. When the lifting screw drives the support base to rise and fall, the guide structure restricts the rotational freedom and lateral sway of the support base, ensuring that the support base remains horizontal during movement, avoiding tilting and jamming, and improving the stability and safety of the demolding component's load-bearing and support. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of the demolding support base in the embodiments of this application.

[0034] Figure 2 for Figure 1 The main view.

[0035] Figure 3 for Figure 2 A sectional view.

[0036] Figure 4 for Figure 1 Side view.

[0037] Figure 5 for Figure 1 Top view.

[0038] Figure 6 for Figure 1 A bottom view.

[0039] in:

[0040] 10-Base assembly, 11-First base, 111-First hollow hole, 12-Second base, 121-Second hollow hole, 13-Disc base;

[0041] 20-Spinning disc;

[0042] 30 - Rolling element;

[0043] 40 - Support base;

[0044] 50 - Lifting screw;

[0045] 60-Guide structure, 61-Guide rod assembly, 611-First guide block, 612-Second guide block, 613-Guide rod;

[0046] 70 - Roller body, 71 - Support column;

[0047] 80 - Bearing seat, 81 - Inclined surface;

[0048] 90 - First limit plate;

[0049] 100 - Second limit plate;

[0050] 110 - Limiting ring. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] It should be noted that the directional terms such as "upper end," "lower end," "left side," and "right side" mentioned below are defined based on the accompanying drawings in the instruction manual.

[0054] Please refer to Figures 1 to 6 , Figure 1 This is a schematic diagram of the overall structure of the demolding support base in the embodiments of this application. Figure 2 for Figure 1 The main view. Figure 3 for Figure 2 A sectional view. Figure 4 for Figure 1 Side view. Figure 5 for Figure 1 Top view. Figure 6 for Figure 1 A bottom view.

[0055] The demolding support base provided in this application embodiment includes a base assembly 10, a rotating disk 20, a rolling element 30, a support base 40, a lifting screw 50, and a guide structure 60.

[0056] The base assembly 10 is used to support the rotating disk 20, the rolling element 30, the support seat 40, the lifting screw 50, and the guide structure 60.

[0057] The rotating disk 20 is horizontally positioned and rotatably mounted on the base assembly 10. The rotating disk 20 is used to rotate relative to the base assembly 10 along an axis in a first direction. This first direction can be a vertical direction, or the axial direction of the rotating disk 20.

[0058] The rolling element 30 is disposed between the base assembly 10 and the rotating disk 20, and the rolling element 30 is used to enable the rotating disk 20 to complete the circumferential rotation.

[0059] The rolling element 30 is installed between the base assembly 10 and the rotating disk 20. The function of the rolling element 30 is to support and reduce friction, enabling the rotating disk 20 to complete circumferential rotation around its central axis. In other words, the rolling element 30 (which can be a ball, roller, or needle roller) acts as a bearing or slewing bearing here, both bearing the weight of the rotating disk 20 and reducing friction during rotation through rolling contact, thereby achieving smooth rotation.

[0060] The support base 40 is located on the side of the rotating disk 20 away from the base assembly 10, and the support base 40 is used to support the demolding part.

[0061] As the rotating disk 20 rotates, the support base 40 moves up and down to reach the pre-selected height, thereby receiving the demolding parts. The demolding parts are supported by the support base 40. The function of the support base 40 is to provide a stable support interface above the rotating disk 20 to support and position the demolding parts, thereby ensuring that the demolded parts are transferred to the target position.

[0062] The lifting screw 50 is movably mounted on the rotating disk 20 and rotates with the support base 40. The lifting screw 50 is used to drive the support base 40 to move along the first direction.

[0063] The lifting screw 50 is embedded in the rotating disk 20 and threadedly engages with it. The rotating disk 20 has an internal threaded hole, and the lifting screw 50 engages with this hole to form a screw-nut mechanism. The lifting screw 50 is rotatably connected to the support base 40. This connection can be achieved via bearings, or alternatively, a clearance fit can be used to allow relative rotation.

[0064] In this way, the rotating disk 20 can be driven to rotate in both directions by the forward and reverse rotation of the drive component (such as the drive motor). Based on the principle of relative motion between the lead screw and the thread, the lifting screw 50 can be raised and lowered.

[0065] The guide structure 60 connects the support base 40 and the base assembly 10, and is used to guide the movement of the support base 40. The guide structure 60 includes, but is not limited to, combinations of spline shaft-sleeve, slide rail-slider, guide post-guide sleeve, etc.

[0066] The guide structure 60 is connected between the support 40 and the base assembly 10, providing precise axial guidance to ensure that the support 40 moves strictly in the set direction and prevents tilting during movement.

[0067] In this way, when the rotating disk 20 is rotated, the lifting screw 50 rotates accordingly, generating axial displacement to achieve the up-and-down movement of the support base 40 without causing the support base 40 to rotate. This allows for highly precise and safe lifting operations, and extremely precise load-bearing and support operations for the demolding component. Simultaneously, the rolling element 30 is positioned between the base assembly 10 and the rotating disk 20, forming a low-friction rolling support. The rotating disk 20 can rotate smoothly and continuously 360° around the first direction axis. Compared to sliding or shim-type structures, rolling friction is low, backlash is small, and operational flexibility is significantly improved. Furthermore, the guide structure 60 directly connects the support base 40 to the base assembly 10, forming a closed force circuit. When the lifting screw 50 drives the support base 40 to rise or fall, the guide structure 60 restricts the rotational freedom and lateral sway of the support base 40, ensuring that the support base 40 remains horizontal during movement, avoiding tilting and jamming, and improving the stability and safety of the demolding component's load-bearing and support.

[0068] In general, the base assembly 10 serves as the fixed reference for the entire machine; the rolling element 30 acts as a slewing bearing: only the rotating disk 20 is allowed to rotate circumferentially relative to the base assembly 10, restricting the other 5 degrees of freedom; the rotating disk 20 also serves as a rotary drive and nut, and the internal threaded hole of the rotating disk 20 forms a screw-nut pair with the lifting screw 50. When the rotating disk 20 is driven to rotate, the lifting screw 50 is forced to produce axial displacement; the lifting screw 50 also serves as a lead screw and lifting output shaft, and the upper end of the lifting screw 50 is rotatably connected to the support base 40 through a bearing (or clearance fit), thus allowing relative rotation with respect to the support base 40. The lower end of the lifting screw 50 has no rotational constraint and is only controlled by the threaded pair and the guide structure 60. The support base 40 serves as a load interface to support the demolding parts. Under the lifting motion of the lifting screw 50, the support base 40 moves up and down synchronously with the lifting screw 50. In addition, the guide structure 60 connects the support base 40 and the base assembly 10, providing precise axial guidance. In this way, the guide structure 60 and the base assembly 10 can establish a constraint that only allows the support base 40 to translate axially, thereby preventing the support base 40 from rotating with the rotating disk 20 and retaining only the axial movement degree of freedom.

[0069] In summary, by rotating the rotating disk 20, the screw-nut pair converts the rotation into the linear motion of the lifting screw 50. The guide structure 60 prevents the support seat 40 from rotating and ensures the pure axial displacement of the support seat 40. The support seat 40 achieves high-precision movement of only lifting / lowering without rotation, thereby realizing the load-bearing function for the demolded parts.

[0070] In some embodiments, the upper end of the lifting screw 50 is clearance-fitted with the support base 40.

[0071] In some embodiments, the bottom of the support base 40 is provided with a bearing seat, and the upper end of the lifting screw 50 is rotatably connected to the bearing seat through a thrust bearing.

[0072] In some embodiments, the demolding support base further includes at least one pair of roller bodies 70, which are disposed on the support base 40 for supporting the demolding component and conveying the demolding component along a second direction perpendicular to the first direction.

[0073] Taking a pair (two) roller bodies 70 as an example, the pair (two) roller bodies 70 are arranged opposite to each other on the support base 40. The roller bodies 70 can roll relative to the support base 40. The roller bodies 70 are used to support the demolding parts. The length of the roller body 70 is 180 mm, the inner diameter is 38 mm, the surface of the roller body 70 is polished with 800-grit sandpaper, and the roller bodies 70 are treated with an oil quenching process and then treated with an anti-corrosion spraying process. By applying a traction force to the demolding parts, as the roller bodies 70 roll relative to the support base 40, the demolding parts can be transported to the target position along a second direction perpendicular to the first direction. The second direction can be as follows: Figure 4 The horizontal direction is shown.

[0074] In some embodiments, two bearing seats 80 are symmetrically arranged on the support base 40, and at least one pair of roller bodies 70 are rotatably and symmetrically distributed on the two bearing seats 80. Both bearing seats 80 are provided with inclined surfaces 81 to prevent the demolding parts from detaching. For example, the inclination angle of the inclined surface 81 is 10 degrees, and the bearing seats 80 are treated with an oil quenching process and an anti-corrosion spraying process.

[0075] In other words, the two roller bodies 70 are respectively mounted on the support base 40 via corresponding bearing seats 80. The bearing seats 80 can be fixed to the support base 40 by detachable connectors (such as bolts or screws), and the roller bodies 70 are rotatably connected to the bearing seats 80 via support columns 71.

[0076] Based on the existing rotation-lifting composite function, by adding the roller body 70 + bearing seat 80 (with inclined surface 81) module, the entire demolding support base achieves the following significant beneficial effects:

[0077] Firstly, it realizes a three-dimensional composite motion of rotation, lifting, and translation: the roller body 70 rolls relative to the support base 40, which can directly send the demolded part from the support area to the external work station without additional hoisting or manual handling; the rotating disk 20 continues to be responsible for the circumferential rotation motion, and the lifting screw 50 continues to be responsible for the vertical demolding support stroke. The movements of the rotating disk 20, the lifting screw 50 and the roller body 70 do not interfere with each other, and the cycle time of the process is significantly shortened.

[0078] Secondly, the roller support changes sliding to rolling, reducing friction and impact: the weight of the demolding part is shared by the roller body 70, reducing the sliding friction between the support seat 40 and the demolding part, and avoiding surface scratches; the rolling conveyor is smooth and has low noise, making it particularly suitable for precision molds or large shell-type workpieces with high surface quality requirements.

[0079] Third, the symmetrical arrangement ensures balanced force and smooth operation: a pair (or more pairs) of roller bodies 70 are symmetrically installed on two bearing seats 80 to form a "simply supported beam" support, so that the weight of the module is evenly distributed and prevents one side from tilting or jamming; the symmetrical structure also makes the radial load of the rotating disk 20 and its rolling elements 30 smaller and extends the service life of the slewing bearing.

[0080] Fourth, the inclined surface 81 provides self-positioning and anti-jump functions: after the demolding part is conveyed into place on the roller body 70, the inclined surface 81 forms a V-shaped or flared guide, automatically guiding the demolding part into the correct center position, improving the repeatability of positioning accuracy; at the same time, during the rotation or lifting of the rotating disk 20, the inclined surface 81 restricts the lateral displacement of the demolding part, preventing it from falling off the support seat 40 due to inertia or vibration, thus improving safety.

[0081] Fifth, the structure is compact, modular and easy to maintain: the roller body 70 and the bearing seat 80 can be replaced. During maintenance, only the bolts need to be removed to replace the roller or bearing, without disassembling the entire lifting / rotating mechanism; the number of new parts is small and the space occupied is small, with minimal impact on the wheelbase and height of the original device, making it easy to upgrade directly on existing equipment.

[0082] In summary, the addition of roller conveyor and inclined self-positioning structure enables the demolding support base to not only achieve accurate demolding but also to possess automatic, stable, low-damage, and safe workpiece conveying capabilities, significantly improving the cycle time, yield, and maintainability of automated production lines.

[0083] More specifically, the roller body 70 can be a cylindrical roller structure with a hollow cavity at its center. Support columns 71 are embedded at both ends of the roller body 70, and the support columns 71 can be connected to the roller body 70 by welding. The support seat 80 has two legs, and a receiving cavity is formed between the two legs to accommodate the rolling of the roller body 70. In this way, the support columns 71 at both ends of the roller body 70 are rotatably connected to the corresponding legs, and the roller body 70 can be rotatably connected to the support seat 80 via the support columns 71.

[0084] It can be seen that by setting a hollow cylindrical roller, the hollow structure significantly reduces the self-weight of the roller body 70 while ensuring load-bearing capacity, reducing the inertial load on the support base 40 and the entire lifting-rotation system, making the drive more effortless and the response faster. The support column 71 is embedded in the end of the roller and welded to form an integrated "short shaft-sleeve" structure, which eliminates axial movement and avoids the long-span deflection problem caused by traditional through shafts, improving the coaxiality and load rigidity of the roller. The support base 80 forms an open receiving cavity through two legs, allowing the roller body 70 to be directly inserted from top to bottom. The support column 71 can be positioned by falling into the shaft hole of the support leg, eliminating the need for side-through shafts. Assembly or replacement time is reduced to minutes. Furthermore, the two legs directly transfer the load of the roller body 70 to the bottom plate of the support base 40, forming a closed force ring, avoiding cantilever stress, and improving structural rigidity and fatigue life. In addition, at least part of the structure of the roller body 70 is submerged in the accommodating cavity, which lowers the center of gravity of the demolding part and maintains the original lifting stroke and stability.

[0085] Of course, depending on actual needs, the support column 71 and the leg hole can adopt a clearance fit or a self-lubricating bushing, eliminating the need for traditional rolling bearings and their lubrication and maintenance, reducing costs and shrinking radial dimensions, making it particularly suitable for demolding environments with a lot of dust. Once worn, only the support column 71 or the leg bushing needs to be replaced, without disassembling the entire roller body 70, resulting in extremely low maintenance costs.

[0086] Overall, through the minimalist design of hollow cylindrical roller + end-welded support column + double leg accommodating cavity, the roller body 70 is lightweight, high-strength, easy to assemble, and maintenance-free, while seamlessly integrating with the entire rotation-lifting-guiding system, further improving the modularity, reliability and scalability of the demolding support base.

[0087] In some embodiments, the guide structure 60 includes two sets of guide rod assemblies 61, each set of guide rod assemblies 61 including a first guide block 611, a second guide block 612, and a guide rod 613. The first guide block 611 is fixed to the base assembly 10, the second guide block 612 is fixed to the support base 40, and the guide rod 613 is inserted and engaged with the first guide block 611 and the second guide block 612 to guide the movement of the support base 40.

[0088] In this embodiment, the guide rod 613 is T-shaped and includes an integrally formed horizontal bar body and a vertical bar body. The horizontal bar body is located on the side of the second guide block 612 away from the first guide block 611, and the vertical bar is inserted and engaged with the first guide block 611 and the second guide block 612.

[0089] As can be seen, the T-shaped guide rod forms a mechanical limit above the second guide block 612 through the crossbar body, preventing the support seat 40 from detaching from the base assembly 10 during movement; the vertical rod body forms a double-point long-distance guide with the first guide block 611 and the second guide block 612, eliminating sway and ensuring that the support seat 40 maintains verticality throughout the entire lifting stroke. Simultaneously, the crossbar body and vertical rod body are integrally formed without welding / threaded joints, avoiding the risk of loosening under high-frequency alternating loads, resulting in higher reliability. Furthermore, compared to traditional solutions that require additional anti-rotation keys or splines, the T-shaped guide rod directly acts as an anti-rotation stop, reducing the number of parts by more than 30% and shortening the assembly cycle.

[0090] In some embodiments, the demolding support base further includes a first limiting plate 90 and a second limiting plate 100, the first limiting plate 90 and the second limiting plate 100 being fixed to the base assembly 10 and the rotating plate 20 respectively, and the rolling element 30 being installed between the first limiting plate 90 and the second limiting plate 100.

[0091] In this embodiment, the raceways of the first limiting disk 90 and the second limiting disk 100 are provided with shoulders in both the radial and axial directions, and the rolling element 30 is completely enclosed, eliminating the axial clearance of traditional deep groove ball or angular contact combined bearings; the rotating disk 20 has no radial wobble when rotating, ensuring the repeatability of the demolding part during lifting and conveying.

[0092] In this way, the first limiting plate 90 is fixedly connected to the base assembly 10, and the second limiting plate 100 is fixedly connected to the rotating plate 20, with the rolling element 30 sandwiched between them, forming a roller structure. The gravity and overturning moment of the demolding part are directly transmitted through the limiting plate → rolling element → base, avoiding the bending moment deformation of the rotating plate 20 in the traditional structure, and improving the overall radial rigidity. The first limiting plate 90, the second limiting plate 100, and the rolling element 30 can be pre-assembled into an independent slewing bearing module, which can be quickly positioned with the base assembly 10 and the rotating plate 20 through the stop and bolts, greatly shortening the assembly time. During maintenance, only the module needs to be lifted out as a whole, without disassembling the lifting screw 50 or the guide structure 60, minimizing production line downtime.

[0093] Of course, depending on actual needs, the first limiting disc 90 and the second limiting disc 100 can be equipped with large-diameter rings according to load requirements, and the rolling elements 30 can be arranged with double rows of crossed rollers or three rows of cylindrical rollers. The load-bearing capacity of a single disc can reach tens of tons, meeting the ultra-heavy-load applications of large composite material parts for vehicle bodies. Furthermore, the outer edges of the first limiting disc 90 and the second limiting disc 100 naturally form a labyrinth seal, preventing mold release agent dust or metal shavings from entering the raceway. Compared to an open ball ring structure, grease life is extended, reducing maintenance frequency.

[0094] In some embodiments, the demolding support base further includes a limiting ring 110 (also called a lateral limiting ring 110), which is disposed between the first limiting plate 90 and the second limiting plate 100. The limiting ring 110 is used to restrict the rolling element 30 from moving laterally (e.g., ...). Figure 3 The displacement (in the horizontal direction shown) is used to prevent the rolling element 30 from disengaging from the first limiting disk 90 and the second limiting disk 100.

[0095] With this design, compared to traditional open raceways where rolling elements are prone to scattering due to bumps, the lateral limiting ring 110 completely seals the raceway laterally, locking the rolling elements 30 within it. Simultaneously, the limiting ring 110 forms a labyrinth seal with the end faces of the first limiting disc 90 and the second limiting disc 100, preventing metal shavings and mold release agent dust from entering the raceway and also preventing grease from being thrown out. This extends the lubrication cycle from 3 months to over 1 year, significantly reducing maintenance costs. When the entire equipment encounters a sudden impact during rotation (such as an accidental mold collision), the rolling elements 30 may momentarily exhibit a tendency to laterally jump. The limiting ring 110 provides an additional shoulder in the radial direction, forcing the rolling elements 30 to remain in place and preventing damage or jamming of the raceway.

[0096] Of course, depending on actual needs, the limiting ring 110 can be made into an open elastic ring or a two-half retaining ring, which can be directly embedded in the groove space between the first limiting plate 90 or the second limiting plate 100. No bolts or additional axial space are required. The number of parts only increases by one, but it can bring about a reliability improvement throughout the entire life cycle of transportation, installation, operation and maintenance.

[0097] In some embodiments, the base assembly 10 includes a first base 11, a second base 12, and a disc seat 13. The first base 11 has a first hollow hole 111; the second base 12 has a second hollow hole 121 located on the outer periphery of the first base 11, and the second base 12 is used to support the first base 11; the disc seat 13 is detachably connected to the first base 11, and the disc seat 13 is used to support the first limiting disc 90.

[0098] For example, the overall height of the demolding support base is 531 mm, the diameter of the rotating disk 20 is 217.5 mm, and the thickness is 20 mm. The second base 12 is 1000 mm long, 1000 mm wide, and 80 mm thick. There are a total of 8 second hollow holes 121, each with a side length of 180 mm. The bottom surface of the second base 12 is polished with 400-grit sandpaper, and the top surface is polished with 1000-grit sandpaper. The second base 12 is treated with a quenching process and an anti-corrosion spray coating. The first base 11 is 450 mm long, 450 mm wide, and 180 mm high. There are a total of 4 first hollow holes 111 around the first base 11, each with a length of 330 mm and a width of 100 mm. The four sides of the first base 11 are polished with 1000-grit sandpaper. The first base 11 is treated with a quenching process and an anti-corrosion spray coating.

[0099] This design, employing a double-layer hollowed-out weight-reduction structure and an independent circular base modular design, ensures both high load-bearing capacity and lightweight, heat dissipation, and quick-disassembly convenience. Specifically:

[0100] The first perforated hole 111 and the second perforated hole 121 form a honeycomb or spoke structure on the base, removing 15-30% of redundant material and reducing the overall weight of the machine. The first base 11 supports the disc seat 13 and the rotating disc 20, while the second base 12 supports the first base 11, forming a composite load-bearing frame that improves bending and torsional stiffness, meeting the requirement of heavy-load, non-deformable large molds. In addition, the perforated holes form vertical ventilation channels. When the rotating disc 20 rotates, it drives airflow, and the frictional heat from the rolling element 30 and the first limiting disc 90 or the second limiting disc 100 is quickly discharged. Release agent dust and metal shavings can fall directly with gravity and will not accumulate in the inner cavity of the base, reducing the frequency of cleaning.

[0101] In some embodiments, the rotating disk 20 is provided with a scale along the circumference to indicate the rotation angle of the rotating disk 20 relative to the base assembly 10.

[0102] In this way, the scale, in conjunction with the fixed pointer (or markings) on the base assembly 10, achieves a reading resolution of 1°-2°, meeting the needs of most manual or semi-automatic demolding stations. Operators do not need electronic encoders or angle sensors; they can read the real-time angle of the rotating disk 20 relative to the base assembly 10 with just their naked eyes, saving hardware and wiring costs. During mold changes, operators can rotate back to the correct angle in one go according to the previously recorded scale value, avoiding repeated trial rotations and reducing mold change time from an average of 5 minutes to less than 30 seconds. When abnormal rotation occurs (such as crawling caused by wear of the rolling element 30), operators can observe the scale runout in real time to quickly determine whether the slewing bearing needs lubrication or replacement, reducing downtime for troubleshooting. Of course, the scale is directly machined on the outer cylindrical surface or upper end face of the rotating disk 20, without occupying additional axial / radial space, and maintains a safe distance from the roller conveying area, guide rods, and limit plates.

[0103] This circumferential scale transforms blind positioning, which was previously based solely on experience, into visual angular positioning. Without adding any sensors or altering the existing structure, it significantly improves demolding efficiency, repeatability, and ease of maintenance, while reserving a zero-cost teaching interface for future automation upgrades.

[0104] The rail vehicle composite material component production equipment provided in this application includes the demolding support base described in the above specific embodiments; other parts of the rail vehicle composite material component production equipment can be referred to in related technologies, and will not be elaborated here.

[0105] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0106] The demolding support base and the equipment for producing composite material parts for rail vehicles provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A demolding support base, characterized in that, include: Base assembly; A rotating disk is rotatably disposed on the base assembly for rotating relative to the base assembly along an axis in a first direction; A rolling element is disposed between the base assembly and the rotating disk, for the rotating disk to complete circumferential rotation; A support base is located on the side of the rotating disk opposite to the base assembly, and is used to support the demolding component; A lifting screw is movably mounted on the rotating disk and rotates with the support base to drive the support base to move along a first direction; A guide structure, connecting the support base and the base assembly, is used to guide the movement of the support base.

2. The demolding support base as described in claim 1, characterized in that, The demolding support base also includes at least one pair of roller bodies, which are disposed on the support base for supporting the demolding component and conveying the demolding component along a second direction perpendicular to the first direction.

3. The demolding support base as described in claim 2, characterized in that, Two bearing seats are symmetrically arranged on the support base, and the at least one pair of roller bodies are rotatably and symmetrically distributed on the two bearing seats. Both bearing seats are provided with inclined surfaces to prevent the demolding parts from detaching.

4. The demolding support base as described in claim 1, characterized in that, The guide structure includes two sets of guide rod assemblies, each guide rod assembly comprising: The first guide block is fixed to the base assembly; The second guide block is fixed to the support base; The guide rod is inserted and cooperates with the first guide block and the second guide block to guide the movement of the support base.

5. The demolding support base as described in claim 4, characterized in that, The guide rod is T-shaped and includes an integrally formed horizontal bar body and a vertical bar body. The horizontal bar body is located on the side of the second guide block away from the first guide block, and the vertical bar is inserted and cooperates with the first guide block and the second guide block.

6. The demolding support base as described in claim 1, characterized in that, The demolding support base also includes a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are respectively fixed to the base assembly and the rotating disk, and the rolling element is installed between the first limiting plate and the second limiting plate.

7. The demolding support base as described in claim 6, characterized in that, The demolding support base also includes a limiting ring, which is disposed between the first limiting plate and the second limiting plate to restrict the rolling element and prevent the rolling element from detaching from the first limiting plate and the second limiting plate.

8. The demolding support base as described in claim 6, characterized in that, The base assembly includes: The first base has a first hollow hole; The second base has a second hollow hole located on the outer periphery of the first base for supporting the first base; The disc base is detachably connected to the first base and is used to support the first limiting disc.

9. The demolding support base as described in any one of claims 1-8, characterized in that, The rotating disk has circumferential graduations to indicate the rotation angle of the rotating disk relative to the base assembly.

10. A production equipment for composite material parts of rail vehicles, characterized in that, Includes the demolding support base as described in any one of claims 1-9.

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