Supporting tool

Abstract

This application provides a support fixture. The support fixture includes a base, a support unit, and a drive unit. The support unit is disposed on the base and includes a first support member and two second support members. The two second support members are symmetrically disposed on opposite sides of the first support member and pivotally connected to it. The drive unit is driven by the two second support members and drives them to move towards each other or away from each other, allowing the second support members to switch between a first position and a second position. When the two second support members move towards each other and reach the first position, they constrain the displacement freedom of the component to be limited placed on the first support member. This improves the stability and adaptability to multiple specifications during storage of the component to be limited, and helps reduce the risk of localized stress concentration and deformation.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a support fixture. Background Technology

[0002] In the wind power industry, the mobile storage of single tower sections is a crucial step in tower manufacturing, transportation, and warehousing. As wind power technology advances towards larger and thinner walls, the diameter of single tower sections typically reaches 4-6 meters, with a single section weighing tens to hundreds of tons. Furthermore, the steel plate wall thickness is significantly reduced, resulting in an extremely high diameter-to-thickness ratio (diameter / wall thickness). After manufacturing, these sections require welding, inspection, and internal component installation, and must be temporarily or permanently stored before subsequent assembly (multi-section joining).

[0003] In related technologies, the storage methods for tower sections include padding or V-shaped iron support. Padding refers to placing sandbags or square timbers at certain intervals on the ground, and then rolling the tower section directly horizontally or suspending it on the padding sandbags or square timbers. V-shaped iron support involves using two heavy V-shaped irons or welded triangular steel blocks to support the ends of the tower section.

[0004] However, the support of the padding method is discrete point contact. The two edges of the V-shaped iron form two narrow lines of contact with the cylinder wall. Uneven support can easily lead to excessive local pressure on the cylinder wall, resulting in local indentation and deformation of the cylinder wall, surface damage, and even the risk of rolling. This affects the accuracy of subsequent production and the safety of operation, and makes it difficult to meet the wind power industry's requirements for the stability, safety and efficiency of cylinder section storage. Summary of the Invention

[0005] This application provides a support fixture to solve the problem in related technologies where uneven support of the cylinder wall leads to excessive local pressure on the cylinder wall, resulting in local depressions and deformations, surface damage, and even the risk of rolling.

[0006] This application provides a support fixture, including:

[0007] Base;

[0008] A support unit is disposed on a base. The support unit includes a first support member and two second support members. The two second support members are symmetrically disposed on opposite sides of the first support member and are pivotally connected to the first support member.

[0009] A drive unit is driven to connect to two second support members. The drive unit is used to drive the two second support members to move in a direction that is closer to or farther from each other, so that the second support members can switch between a first position and a second position.

[0010] When the two second support members move toward each other and reach the first position, the two second support members are used to constrain the displacement degree of freedom of the component to be limited placed on the first support member.

[0011] In one possible implementation, the drive unit includes two drive members, which are respectively driven to two second support members. Each drive member is used to drive the corresponding second support member to rotate relative to the first support member.

[0012] In one possible implementation, the drive unit further includes a lifting mechanism disposed between the base and the first support member, the lifting mechanism being used to drive the first support member to move up and down in the vertical direction.

[0013] In one possible implementation, each drive member includes a motion arm located between the support unit and the base, and each motion arm has a first pivot end, a second pivot end and a third pivot end. The first pivot end is pivotally connected to the first support member, the second pivot end is pivotally connected to its corresponding second support member, the third pivot end is located between the first pivot end and the second pivot end, and the third pivot end is rotatable relative to the base and can slide along a first direction.

[0014] When the component to be limited is placed on the first support, the lifting mechanism drives the first support to move downward in the vertical direction under the gravity of the component to be limited, and the second pivot end rotates around the third pivot end to push the second support to move toward the first position.

[0015] In one possible implementation, the base is provided with a slide rail extending in a first direction, each moving arm has a slider, the slider is pivotally connected to a third pivot end, and the slider slides in cooperation with the slide rail.

[0016] In one possible implementation, each motion arm includes a first sub-arm, a second sub-arm, and a third sub-arm. The first end of the first sub-arm is connected to the second sub-arm and has an included angle. The first ends of the second sub-arm and the third sub-arm are pivotally connected. The second end of the first sub-arm is pivotally connected to a first support member. The second end of the third sub-arm is pivotally connected to a corresponding second support member.

[0017] In one possible implementation, the lifting mechanism includes a first lifting member and a second lifting member. The first lifting member is disposed on the base, and the second lifting member is slidably connected to the first lifting member in a vertical direction. The second lifting member is also connected to the first support member.

[0018] The second lifting component can move vertically relative to the first lifting component under the action of external force.

[0019] In one possible implementation, both the first and second lifting components are box-shaped structures, and the second lifting component is sleeved on the outer periphery of the first lifting component.

[0020] In one possible implementation, it further includes at least two buffers arranged in an array between the base and the first support.

[0021] In one possible implementation, at least one elastic reset member is further included, which is disposed between the base and the first support member;

[0022] The elastic reset member is configured to drive the first support member to move vertically toward the side away from the base by its own elastic force.

[0023] In one possible implementation, there are two elastic reset members, which are disposed in the central region below the first support member along the first direction, and the two elastic reset members are spaced apart along the second direction.

[0024] At least two buffers are symmetrically arranged on the outer periphery of the two elastic reset members.

[0025] In one possible implementation, the support unit also has a cushioning pad located on the upper surface of the support unit.

[0026] This application provides a support fixture, which includes a first support member and two second support members pivotally connected to the first support member on a base. The two second support members are driven by a drive unit to move in a direction that is closer to or further away from each other, so that the second support members can switch between different positions. Based on the support of the first support member for the part to be limited, the two second support members located in the first position constrain the displacement degree of freedom of the part to be limited, thereby improving the stability and multi-specification adaptability of the part to be limited during storage, and helping to reduce the risk of local stress concentration and deformation. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0028] Figure 1 This is a schematic diagram of the structure of the support tooling provided in the embodiments of this application;

[0029] Figure 2 A half-sectional schematic diagram of the support tooling provided in the embodiments of this application;

[0030] Figure 3 This is an exploded view of the support tooling provided in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10-Supporting fixtures;

[0033] 100 - Base; 110 - Slide rail;

[0034] 200 - Support unit; 210 - First support member; 220 - Second support member; 230 - Buffer pad;

[0035] 300 - Drive unit; 310 - Drive component; 311 - Motion arm; 3111 - First pivot end; 3112 - Second pivot end; 3113 - Third pivot end; 3114 - Slider; 3115 - First sub-arm; 3116 - Second sub-arm; 3117 - Third sub-arm; 3118 - First end of the first sub-arm; 3119 - Second end of the first sub-arm; 3120 - First end of the third sub-arm; 3121 - Second end of the third sub-arm;

[0036] 320 - Lifting mechanism; 321 - First lifting component; 322 - Second lifting component;

[0037] 400-Buffer;

[0038] 500 - Elastic reset component.

[0039] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0040] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application.

[0041] As wind power technology develops towards larger and thinner structures, the diameter of a single tower section typically reaches 4-6 meters, with a single section weighing tens to hundreds of tons. Furthermore, the steel plate wall thickness is significantly reduced, resulting in an extremely high diameter-to-thickness ratio (diameter / wall thickness). After manufacturing, these sections require welding, inspection, and internal component installation, and must be temporarily or permanently stored before subsequent assembly (multi-section joining).

[0042] In related technologies, the storage of single tower sections often employs methods such as sandbags, sleepers, fixed saddles, or V-shaped supports to place the section on several discrete support points, utilizing these points to bear the section's own weight and restrict its rolling. Some fixed saddles, by supporting the outer wall of the section with a pre-designed curved surface, can achieve basic placement, but they typically correspond to a single size of section and are difficult to accommodate storage needs for sections of different sizes.

[0043] In related technologies, when cylindrical sections are supported and stored, there are few support positions and a limited contact range. The support components and the cylindrical wall mostly have point or line contact, and the load on the cylindrical section is concentrated in a local area. Thin-walled cylindrical sections are prone to local indentation, changes in ellipticity, or overall bending after long-term static placement or repeated lifting. When rigid support components are in direct contact with the outer wall of the cylindrical section, the impact at the moment of lifting and placement can easily cause surface damage. For cylindrical sections of different diameters, different tooling often needs to be changed on site, increasing the turnover and management burden. In addition, traditional support methods are not well adapted to changes in posture during the lifting process. When the cylindrical section is placed or removed, it is prone to rolling due to the shift in the center of gravity, resulting in poor storage stability, affecting the continuity of subsequent welding, inspection, and transfer operations, and also increasing the risks of on-site operations.

[0044] To overcome the deficiencies in the prior art, this application provides a support fixture. By setting a support unit on the base, including a first support member and two second support members pivotally connected to the first support member, and using a drive unit to drive the two second support members to move toward each other or away from each other, the second support members can switch between different positions. Based on the support of the first support member on the cylinder section, the displacement freedom of the cylinder section can be constrained by the two second support members located in the first position, thereby improving the stability and multi-specification adaptability of the cylinder section during storage, and helping to reduce the risk of local stress concentration and deformation.

[0045] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0046] Please refer to Figure 1 and Figure 2 As shown, this application embodiment provides a support fixture 10, which is used to support a component to be limited. The component to be limited includes, but is not limited to, a tower section. Hereinafter, the component to be limited will be used instead of the tower section to be supported for description.

[0047] Please refer to Figure 1 , Figure 2 , Figure 3 The support fixture 10 includes a base 100, which is a basic component for supporting and installing the support unit 200 and the drive unit 300. The base 100 provides overall installation rigidity and a force transmission path for the support, clamping, and switching actions of the component to be limited. The base 100 is typically installed on the ground, a frame, or a storage auxiliary platform, and is connected to an external load-bearing structure via a fixed or detachable connection to ensure the positional stability of the fixture during hoisting, placement, and static storage.

[0048] Please continue to refer to this. Figure 1 The first direction is along the width direction of the base 100.

[0049] Please continue to refer to this. Figure 1 , Figure 2 , Figure 3 As shown, the support unit 200 includes a first support member 210 and two second support members 220. The two second support members 220 are symmetrically arranged on opposite sides of the first support member 210 and pivotally connected to the first support member 210. The first support member 210 is located in the middle of the support unit 200 and is the main support component for bearing the load of the main body of the limiting member. The first support member 210 and the two second support members 220 together form an openable support configuration. The first support member 210 is arranged between the two second support members 220 and serves as a reference component for pivoting and limiting switching. The second support members 220 are used to constrain the degrees of freedom of the member to be limited.

[0050] The outer contours of the first support member 210 and the second support member 220 are arc-shaped and adapted to the outer contour dimensions of the part to be limited, so that the main load is distributed in a larger contact area.

[0051] Please continue to refer to this. Figure 1 , Figure 2 , Figure 3 As shown, the drive unit 300 forms a drive engagement with the two second support members 220 and is a power actuator used to drive the second support members 220 to move towards or away from each other. After being connected to the two second support members 220 respectively, it can enable the two second support members 220 to switch between the first position and the second position to adapt to the placement, limiting and release process of the limit member.

[0052] In practical implementation, the base 100 is first fixed to the ground or work platform. At this time, the drive unit 300 controls the two second support members 220 to be in a second position away from each other, thereby forming a placement space between the first support member 210 and the second support member 220 for the member to be limited to enter. When the member to be limited is sent to the support fixture 10 by a lifting device, forklift, or transfer mechanism and slowly lowered, the main body of the member to be limited first falls on the first support member 210, which bears the main vertical load. At the same time, the two second support members 220 are located on both sides of the member to be limited and keep in a yielding state to avoid lateral interference to the outer wall of the member to be limited at the moment of placement. After the member to be limited is initially positioned, the drive unit 300 controls the two second support members 220 to be positioned to enter a second position away from each other. When the drive unit 300 starts moving, it drives the two second support members 220 to move towards the first position. During the switching process, the support members 220 gradually approach the outer circumference of the part to be limited. When the second support member 220 moves to the first position, its inner constraint surface forms a surrounding fit with the outer wall of the part to be limited, which restricts the lateral translation, deflection and rolling tendency of the part to be limited. At the same time, the first support member 210 continues to provide bottom support, thereby dispersing the load that was originally concentrated at a few discrete support points to a larger contact area. When it is necessary to remove the part to be limited, the drive unit 300 reverses its movement, causing the two second support members 220 to swing away from each other and return to the second position. After the lateral constraint is released, the part to be limited can be smoothly moved out by the external hoisting equipment.

[0053] Therefore, through the above-mentioned structure and action coordination, the part to be limited can simultaneously obtain bottom support and side enclosure and limitation when placed. The support relationship changes from fixed fulcrum contact to openable and closable limiting contact. Thus, the part to be limited can maintain a relatively stable posture during temporary storage, process turnover and stacking for assembly, and the contact relationship during placement and picking is more adaptable to parts of different specifications.

[0054] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, the drive unit 300 includes two drive members 310, which are respectively driven to two second support members 220. Each drive member 310 is used to drive the corresponding second support member 220 to rotate relative to the first support member 210.

[0055] For details, please refer to Figure 2 , Figure 3Two driving members 310 are disposed above the base 100 or on both sides of the support unit 200, and respectively form a one-to-one transmission connection with the corresponding second support member 220. They are used to output rotational driving force to the second support member 220, so that the second support member 220 can rotate around the pivot axis connected to the first support member 210, thereby changing the angle state of the second support member 220 relative to the first support member 210, thereby realizing the opening and closing limit of the limit member.

[0056] It is understandable that the effective stroke of the drive component 310 is usually matched with the angular displacement corresponding to the second support component 220 rotating from the second position to the first position. The installation length, the lever arm length from the output end hinge point to the pivot center of the second support component 220, and the magnitude of the output force satisfy the lever relationship to ensure that the second support component 220 can still rotate reliably when the diameter of the limit component is large or the frictional resistance is high.

[0057] After the component to be positioned is placed, the two drive members 310 continue to drive the second support member 220 to a predetermined angle. The second support member 220 and the first support member 210 together form support and constraint on both sides of the component to be positioned, thereby limiting the lateral displacement, rolling tendency, and attitude deviation of the component to be positioned. Since the two drive members 310 correspond to the two second support members 220 respectively, the second support member 220 on one side can be finely adjusted according to the local contact state. Therefore, it can better adapt to different diameters, different shape tolerances, and attitude errors during the hoisting and positioning process, making the support contact more closely fit, reducing indentations and impacts caused by local hard contact, and improving the response flexibility and stability of the positioning process.

[0058] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, the drive unit 300 also includes a lifting mechanism 320, which is disposed between the base 100 and the first support member 210. The lifting mechanism 320 is used to drive the first support member 210 to move up and down in the vertical direction.

[0059] For details, please refer to Figure 2The lifting mechanism 320 first adjusts the first support 210 to a predetermined vertical position according to the external dimensions and placement height requirements of the part to be limited, so that a suitable height relationship is formed between the first support 210 and the part to be limited. Then, after the part to be limited is placed on the first support 210, the lifting mechanism 320 can remain locked under gravity, or rise or fall slightly under external drive, in order to correct the contact state of the support point and reduce local concentrated loads. After the first support 210 completes the height adaptation, the second support 220 rotates towards each other and enters the first position under the action of each drive component 310, thereby forming a surrounding constraint on both sides of the part to be limited. This achieves the coordination of vertical height adjustment and linkage limiting, improving the support fixture 10's adaptability to the specifications of the part to be limited, its placement stability, and the uniformity of force distribution.

[0060] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, each drive member 310 includes a motion arm 311, which is located between the support unit 200 and the base 100. Each motion arm 311 has a first pivot end 3111, a second pivot end 3112, and a third pivot end 3113. The first pivot end 3111 is pivotally connected to the first support member 210, and the second pivot end 3112 is pivotally connected to its corresponding second support member 220. The three pivot ends are located between the first pivot end 3111 and the second pivot end 3112, and the third pivot end 3113 can rotate relative to the base 100 and slide in the first direction. When the member to be limited is placed on the first support member 210, the lifting mechanism 320 drives the first support member 210 to move downward in the vertical direction under the gravity of the member to be limited. The second pivot end 3112 rotates around the third pivot end 3113 to push the second support member 220 toward the first position.

[0061] For details, please refer to Figure 1 , Figure 2 , Figure 3 As shown,

[0062] The motion arm 311 is a linkage component used to convert the vertical displacement of the first support member 210 into the rotational displacement of the second support member 220. It forms a three-point force transmission relationship through three pivot ends to achieve relative motion coordination between the support unit 200 and the base 100. The motion arm 311 is located between the support unit 200 and the base 100, and forms a rotatable and slidable composite connection relationship with the first support member 210, the second support member 220, and the base 100. The first pivot end 3111 is the hinged part between the moving arm 311 and the first support member 210, used to change angle synchronously with the first support member 210; the second pivot end 3112 is the hinged part between the moving arm 311 and the corresponding second support member 220, used to transmit the angular displacement of the moving arm 311 to the second support member 220; the third pivot end 3113 is the support and guide part of the moving arm 311 relative to the base 100, so that the moving arm 311 has a sliding degree of freedom along the first direction during rotation, so as to adapt to the trajectory change when the first support member 210 sinks.

[0063] Understandably, the distance relationship between the first pivot end 3111, the second pivot end 3112, and the third pivot end 3113 determines the lever transmission ratio of the moving arm 311 and the closing stroke of the second support member 220. Typically, the distance from the second pivot end 3112 to the third pivot end 3113 and the distance from the first pivot end 3111 to the third pivot end 3113 can be set to a predetermined ratio to ensure that when the first support member 210 undergoes a limited downward movement, the second support member 220 can stably complete the switch from the open state to the first position.

[0064] For specific implementation details, please refer to [reference needed]. Figure 2As shown, when the component to be limited is hoisted and placed on the first support 210, its own weight is transmitted to the lifting mechanism 320 via the first support 210. Under the action of gravity, the lifting mechanism 320 causes the first support 210 to move downward in the vertical direction, and drives the pivotally connected motion arm 311 to change its posture synchronously. Since the third pivot end 3113 of the motion arm 311 can both rotate and slide in the first direction relative to the base 100, the motion arm 311 forms a composite motion trajectory during the sinking process, which causes the second pivot end 3112 to rotate around the third pivot end 3113 and apply a thrust inward. The thrust further drives the corresponding second support 220 to move closer to the first position. During this process, the two second support members 220 gradually surround the two sides of the component to be limited, forming a limiting envelope together with the first support 210, thereby restricting the lateral displacement and rolling degree of freedom of the component to be limited. The process is triggered by the weight of the component to be limited and the force is converted through the lever relationship of the moving arm 311. The second support 220 can complete synchronous closure without the need for an additional complex drive source. When components of different diameters are placed, the sliding of the third pivot end 3113 compensates for the difference in movement path, reducing local impact and contact stress concentration, improving support stability and specification adaptability, and helping to reduce the risk of indentation, deformation and surface damage to the component to be limited during long-term static placement or repeated lifting.

[0065] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, the base 100 is provided with a slide rail 110 extending in the first direction, and each moving arm 311 has a slider 3114. The slider 3114 is pivotally connected to the third pivot end 3113, and the slider 3114 is slidably engaged with the slide rail 110.

[0066] Please refer to Figure 2 , Figure 3 As shown, both the slide rail 110 and the slider 3114 extend along the first direction. The guiding relationship formed by the slide rail 110 and the slider 3114 makes it difficult for each moving arm 311 to deflect laterally or drift in attitude as it approaches or moves away from the second support member 220, thus making the movement of the second support member 220 more synchronized, stable, and repeatable. Since the third pivot end 3113 can slide in a restricted manner in the first direction, when the member to be limited is placed on the first support member 210 and the lifting mechanism 320 tends to move downward, the moving arm 311 will complete the predetermined trajectory movement around its pivot relationship under the constraint of the slide rail 110. The second pivot end 3112 then drives the corresponding second support member 220 to retract to the first position, thereby forming a stable enclosure on both sides of the member to be limited.

[0067] It can be seen that the guiding arrangement of the slide rail 110 and the slider 3114 can improve the motion reliability of the motion arm 311 without significantly increasing the structural complexity, and make the support fixture 10 suitable for storage scenarios of components to be limited under different specifications and different positioning postures.

[0068] For example, the third pivot end 3113 and the base 100 can also be guided to slide and rotate relative to the base 100 by means of a pin, bushing, roller support or universal joint support.

[0069] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, each motion arm 311 includes a first sub-arm 3115, a second sub-arm 3116, and a third sub-arm 3117. The first end 3118 of the first sub-arm is connected to the second sub-arm 3116 and has an included angle. The second sub-arm 3116 is pivotally connected to the first end 3120 of the third sub-arm. The second end 3119 of the first sub-arm is pivotally connected to the first support member 210. The second end 3121 of the third sub-arm is pivotally connected to the corresponding second support member 220.

[0070] Please refer to Figure 2 and Figure 3 As shown, a four-bar linkage is formed between the support unit 200 and the motion arm 311, thereby transmitting motion and changing the direction of motion between the first support member 210 and the corresponding second support member 220. This four-bar linkage transforms the displacement or motion trend of the first support member 210 into the rotation and closing motion of the second support member 220 relative to the first support member 210, thus enabling the second support member 220 to switch between an open state and a limited state.

[0071] For details, please refer to Figure 2 and Figure 3 As shown, the first end 3118 of the first sub-arm is connected to the second sub-arm 3116 and forms an angle. The second sub-arm 3116 and the first end 3120 of the third sub-arm are pivotally connected to form a rotatable connection. The second end 3119 of the first sub-arm is pivotally connected to the first support member 210, and the second end 3121 of the third arm is pivotally connected to the corresponding second support member 220. This forms an angled linkage relationship between the three sub-arms and the support unit 200 and the base 100. Since the connection points are achieved by using pins, hinges, or equivalent revolute joints, the moving arm 311 can swing, fold, or unfold synchronously around multiple pivot points during operation to adapt to changes in the outer contour of the parts to be limited in different specifications.

[0072] Please refer to the following: Figure 2The length of the first sub-arm 3115 is less than the length of the second sub-arm 3116. The first sub-arm 3115 and the second sub-arm 3116 are integrally formed to form an "L" shaped structure. The third sub-arm 3117 is the hinge section between the second pivot end 3112 and the second support member 220.

[0073] It can be understood that the lengths of the first sub-arm 3115, the second sub-arm 3116, and the third sub-arm 3117 can be matched and set according to the rotation requirements of the second support member 220 and the lifting stroke of the first support member 210, so as to ensure that the mechanism has sufficient force transmission capacity and smooth movement during unfolding and folding. The cross-sectional thickness and width of the three can be configured according to the load size, the diameter of the limit member to be limited, and the overall layout space of the machine.

[0074] In practical implementation, when the component to be limited is placed on the first support 210, the gravity of the component acts on the first support 210, causing it to move downwards. The first sub-arm 3115 changes angle with the first support 210, and the second sub-arm 3116 and the third sub-arm 3117 rotate synchronously at the pivot point, thereby causing the end of the third sub-arm 3117 to push the corresponding second support 220 closer to the first position. Since the first end 3118 of the first sub-arm is connected to the second arm 3116 at an angle, the mechanism can form a segmented lever arm conversion relationship during movement. This is beneficial for amplifying the drive stroke and makes the movement of the support component smoother when entering the limited state, facilitating stable control during hoisting, placement, storage, and reuse.

[0075] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, the lifting mechanism 320 includes a first lifting member 321 and a second lifting member 322. The first lifting member 321 is disposed on the base 100, and the second lifting member 322 is slidably connected to the first lifting member 321 in a vertical direction, and the second lifting member 322 is connected to the first support member 210. The second lifting member 322 can move vertically relative to the first lifting member 321 under the action of external force.

[0076] Please refer to Figure 2 and Figure 3 As shown, the lifting mechanism 320 is used to limit the vertical displacement of the first support member 210 to prevent it from swinging and causing the member to be limited to fall. The first lifting member 321 can be understood as a fixed guide and load-bearing component in the lifting mechanism 320, used to provide a vertical movement reference and installation support for the second lifting member 322; the second lifting member 322 is a movable component that cooperates with the first lifting member 321. It moves up and down relative to the first lifting member 321 under the action of external force and transmits the vertical displacement to the first support member 210, thereby realizing the overall lifting of the first support member 210.

[0077] The second lifting member 322 and the first lifting member 321 usually form a suitable guide gap, and the lateral gap between them is generally controlled within a range that can ensure smooth sliding and avoid obvious swaying.

[0078] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, both the first lifting member 321 and the second lifting member 322 are box-shaped structures, and the second lifting member 322 is sleeved on the outer periphery of the first lifting member 321.

[0079] Please refer to Figure 1 , Figure 2 , Figure 3 As shown, the first lifting member 321 is fixed to the base 100 as an inner guide box or an outer bearing box. The second lifting member 322 is arranged along the outer periphery of the first lifting member 321 in a sleeve, covering, or nesting manner, and achieves vertical relative movement through the limiting and guiding side of the first lifting member 321. Since the second lifting member 322 is sleeved on the outer periphery of the first lifting member 321, the two can jointly form a large anti-overturning support surface during movement. When the first support member 210 bears the weight of the part to be limited and moves downward during the driving process, the second lifting member 322 can maintain a stable posture under the constraint of the first lifting member 321, thereby transferring the load to the base 100 more evenly.

[0080] It is evident that this socket-type box lifting structure can improve guiding stability and structural load-bearing capacity without significantly increasing the overall complexity of the machine, enabling the tooling to maintain good reliability and consistency during long-term use, and helping to reduce the risk of collisions and the frequency of maintenance during on-site loading and unloading.

[0081] For example, the first lifting member 321 and the second lifting member 322 may also adopt a telescopic guide structure with wear-resistant bushings to improve the smoothness of lifting.

[0082] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, it also includes at least two buffers 400, which are arranged in an array between the base 100 and the first support 210.

[0083] Please refer to Figure 3 As shown, four buffer members 400 are evenly spaced between the base 100 and the first support member 210. By being evenly arranged in the four corner areas of the base 100, the bottom of the first support member 210 can obtain a relatively uniform support reaction force.

[0084] It is understandable that the buffer 400 is an elastic load-bearing element that absorbs impact and provides an elastic transition during the support and limiting process. Its function is that when the part to be limited falls above the first support 210 and comes into contact with the support unit 200, the buffer 400 bears part of the instantaneous impact load, reducing the degree of rigid collision between the first support 210 and the base 100. At the same time, when the first support 210 is compressed and moves downward or swings under load, the buffer 400 can disperse the load through compression deformation, thereby reducing stress concentration and protecting the support structure and the surface of the part to be limited.

[0085] For example, the buffer components 400 can be respectively disposed in the middle area of ​​the edge of the base 100 or symmetrically distributed around the central area of ​​the first support component 210, so that they can participate in buffering under different stress states. The specific form of the buffer component 400 can be a rubber block, polyurethane pad, spring pad, elastic column or composite buffer module, or it can be a hydraulic buffer, pneumatic buffer or spring damping assembly.

[0086] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, it also includes at least one elastic reset member 500, which is disposed between the base 100 and the first support member 210. The elastic reset member 500 is configured to drive the first support member 210 to move vertically toward the side away from the base 100 by its own elastic force.

[0087] For details, please refer to Figure 3 As shown, the first support member 210, under the elastic force of the elastic reset member 500, maintains or tends to rise away from the base 100, reserving sufficient space for the placement of the component to be limited; during the process of the component to be limited being hoisted above the first support member 210 and gradually lowered, the gravity of the component to be limited acts on the first support member 210, and when the first support member 210 is pressed downward, it drives the elastic reset member 500 to further compress and store elastic potential energy, while forming a smooth load-bearing transition in cooperation with the aforementioned lifting mechanism 320; and while the component to be limited After the position member is removed or the external load is released, the elastic reset member 500 releases the stored elastic potential energy, pushing the first support member 210 to move vertically toward the side away from the base 100, so that the first support member 210 automatically returns to the initial height. At this time, the first sub-arm 3115 generates an upward movement tendency, which drives the second sub-arm 3116 to generate a downward movement tendency, thereby driving the third sub-arm 3117 to rotate, and finally causing the two second support members 220 to rotate in a direction away from each other, until the second support member 220 is in the second position.

[0088] It can be seen that the elastic reset member 500 can realize the automatic reset of the first support member 210 without relying on complex external drives, and drive the second support member 220 to automatically reset.

[0089] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, there are two elastic reset members 500. The two elastic reset members 500 are disposed in the central area below the first support member 210 along the first direction, and the two elastic reset members 500 are spaced apart along the second direction. At least two buffer members 400 are symmetrically disposed on the outer periphery of the two elastic reset members 500.

[0090] Please refer to Figure 3 As shown, the elastic reset members 500 are symmetrically arranged at the center of the base 100 along the first direction, and two elastic reset members 500 are spaced apart. The remaining four buffer members 400 are symmetrically arranged at the four corners of the base 100.

[0091] Understandably, the first support member 210, under the action of the lifting mechanism 320, carries the member to be limited and undergoes vertical displacement. The two elastic reset members 500 located in the central area are simultaneously compressed and store energy. Because they are spaced apart along the second direction, they can apply relatively balanced reverse support forces to the left and right sides of the first support member 210, thereby suppressing the deflection of the support surface during the loading process. At the same time, the buffer members 400 symmetrically arranged on the outer periphery reduce the instantaneous impact during the pressing contact and rebound reset of the first support member 210, reducing the stress transmitted to the elastic reset members 500. As the member to be limited is unloaded or the first support member 210 is lifted by external drive, the two elastic reset members 500 release the stored elastic potential energy and work together to push the first support member 210 back to the predetermined position. Meanwhile, the outer periphery buffer members 400 continue to mitigate the contact impact at the reset end, making the lifting process of the first support member 210 smoother and its posture more stable. This arrangement can ensure the reliable reset of the first support member 210, improve the stability and resistance to eccentric loads under load, reduce impact wear caused by local hard contact, and help extend the service life of the elastic reset member 500 and improve the reliability of the entire support fixture 10 under repeated lifting conditions.

[0092] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 3 As shown, the support unit 200 also has a buffer pad 230, which is located on the upper surface of the support unit 200.

[0093] Please refer to Figure 1 , Figure 2As shown, the buffer pad 230 is bonded to the upper surface of the support unit 200 and covers the entire area of ​​the first support member 210 and the second support member 220 to reduce the risk of scratches, indentations and structural damage caused by instantaneous hard impact on the surface of the component to be limited.

[0094] For example, the cushioning pad 230 can be formed by one or more of rubber, polyurethane, silicone, foam, and composite fiber elastic materials. A wear-resistant coating, anti-slip texture, microporous structure, or friction-reducing coating can also be provided on the surface of the cushioning pad 230 to balance cushioning, friction control, and durability. Finally, it should be noted that other embodiments of the invention will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. It is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope.

Claims

1. A support fixture, characterized in that, include: Base (100); A support unit (200) is disposed on the base (100). The support unit (200) includes a first support member (210) and two second support members (220). The two second support members (220) are respectively symmetrically disposed on opposite sides of the first support member (210) and pivotally connected to the first support member (210). A drive unit (300) is driven to connect with two second support members (220). The drive unit (300) is used to drive the two second support members (220) to move toward each other or toward each other, so that the second support members (220) can switch between a first position and a second position. When the two second support members (220) move toward each other and move to the first position, the two second support members (220) are used to constrain the displacement degree of freedom of the member to be limited placed on the first support member (210).

2. The supporting fixture according to claim 1, characterized in that, The drive unit (300) includes two drive members (310), which are respectively driven to be connected to two second support members (220). Each drive member (310) is used to drive the corresponding second support member (220) to rotate relative to the first support member (210).

3. The supporting fixture according to claim 2, characterized in that, The drive unit (300) further includes a lifting mechanism (320), which is disposed between the base (100) and the first support member (210). The lifting mechanism (320) is used to drive the first support member (210) to move up and down in the vertical direction.

4. The supporting fixture according to claim 3, characterized in that, Each of the drive components (310) includes a motion arm (311), each motion arm (311) is located between the support unit (200) and the base (100), and each motion arm (311) has a first pivot end (3111), a second pivot end (3112) and a third pivot end (3113). The first pivot end (3111) is pivotally connected to the first support member (210), the second pivot end (3112) is pivotally connected to its corresponding second support member (220), the third pivot end is located between the first pivot end (3111) and the second pivot end (3112), and the third pivot end (3113) is rotatable relative to the base (100) and can slide in a first direction. When the component to be positioned is placed on the first support (210), the lifting mechanism (320) drives the first support (210) to move downward in the vertical direction under the gravity of the component to be positioned, and the second pivot end (3112) rotates around the third pivot end (3113) to push the second support (220) toward the first position.

5. The supporting fixture according to claim 4, characterized in that, The base (100) is provided with a slide rail (110) extending in a first direction, and each of the moving arms (311) has a slider (3114), the slider (3114) is pivotally connected to the third pivot end (3113), and the slider (3114) is slidably engaged with the slide rail (110).

6. The supporting fixture according to claim 4, characterized in that, Each of the aforementioned motion arms (311) includes a first sub-arm (3115), a second sub-arm (3116), and a third sub-arm (3117). The first end (3118) of the first sub-arm is connected to the second sub-arm (3116) and has an included angle. The second sub-arm (3116) is pivotally connected to the first end (3120) of the third sub-arm. The second end (3119) of the first sub-arm is pivotally connected to the first support member (210). The second end (3121) of the third sub-arm is pivotally connected to the corresponding second support member (220).

7. The supporting fixture according to claim 3, characterized in that, The lifting mechanism (320) includes a first lifting member (321) and a second lifting member (322). The first lifting member (321) is disposed on the base (100). The second lifting member (322) is slidably connected to the first lifting member (321) in a vertical direction, and the second lifting member (322) is connected to the first support member (210). The second lifting member (322) is able to move vertically relative to the first lifting member (321) under the action of external force.

8. The support fixture according to claim 7, characterized in that, Both the first lifting member (321) and the second lifting member (322) are box-shaped structures, and the second lifting member (322) is sleeved on the outer periphery of the first lifting member (321).

9. The support fixture according to claim 8, characterized in that, It also includes at least two buffers (400), which are arranged in an array between the base (100) and the first support (210).

10. The support fixture according to claim 9, characterized in that, It also includes at least one elastic reset member (500), which is disposed between the base (100) and the first support member (210); The elastic reset member (500) is configured to drive the first support member (210) to move vertically toward the side away from the base (100) by its own elastic force.

11. The support fixture according to claim 10, characterized in that, There are two elastic reset members (500), which are disposed in the central area below the first support member (210) along the first direction, and the two elastic reset members (500) are spaced apart along the second direction. At least two of the buffer members (400) are symmetrically arranged on the outer periphery of the two elastic reset members (500).

12. The support fixture according to any one of claims 1-11, characterized in that, The support unit (200) also has a buffer pad (230) located on the upper surface of the support unit (200).

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