Clamp and feeding and discharging system with same

Abstract

This utility model provides a clamp and a loading / unloading system having the same. The clamp is used to hold a target workpiece. The clamp includes a frame, which is movably arranged. The frame includes a support beam with a polygonal cross-section and more than six sides. A gripper assembly is movably arranged on the frame to clamp the target workpiece and move it to a target workstation under the action of the frame. A weight-reducing part is at least partially arranged on the frame. The weight-reducing part includes a third weight-reducing part, which consists of multiple second weight-reducing holes arranged on the support beam. At least two of the multiple second weight-reducing holes are mounting holes for mounting the gripper assembly. This solves the problem in the prior art where the weight of the integrated casting makes it difficult to install accurately and hold stably.

Description

Technical Field

[0001] This utility model relates to the field of loading and unloading technology, and more specifically, to a clamp and a loading and unloading system having the same. Background Technology

[0002] With the rapid development of the global automotive industry and the increasing emphasis on energy conservation and emission reduction, lightweighting of automobiles has become an industry trend and a key research direction. Against this backdrop, integrated die casting technology, especially the application of ultra-large die casting machines, provides a completely new solution for automotive parts manufacturing. This technology integrates the structures of multiple components into a single integral molded part in a single die casting process. This not only significantly reduces the stamping, welding, and assembly steps in traditional manufacturing processes but also greatly reduces the number of parts in the entire vehicle, thereby effectively reducing the weight of the car and improving its fuel economy and environmental performance. More importantly, the adoption of integrated die casting technology can enhance the rigidity and stability of the vehicle structure, improving vehicle safety and driving experience.

[0003] However, the widespread adoption of integrated die casting technology has also brought new challenges. Due to the significant increase in the size and weight of die-cast parts, traditional manual handling and loading / unloading methods can no longer meet the requirements of production efficiency and safety. For example, some integrated die-cast automotive structural parts weigh over 65 kg, which not only far exceeds the capacity for manual handling but also increases safety risks during operation, potentially leading to occupational injuries to workers or damage to parts. Utility Model Content

[0004] The main purpose of this utility model is to provide a clamp and a loading and unloading system thereon to solve the problem in the prior art that the integrated casting is too heavy, making it difficult to install accurately and clamp stably.

[0005] To achieve the above objectives, according to one aspect of the present invention, a clamp is provided for clamping a target workpiece. The clamp includes a frame that is movably arranged. The frame includes a support beam with a polygonal cross-section and the polygon has more than six sides.

[0006] The gripper assembly is movably mounted on the frame to clamp the target workpiece and move the target workpiece to the target station under the drive of the frame.

[0007] The weight-reducing part is at least partially disposed on the frame. The weight-reducing part includes a third weight-reducing part, which is a plurality of second weight-reducing holes disposed on the support beam. At least two of the plurality of second weight-reducing holes are mounting holes for mounting the gripper assembly.

[0008] Furthermore, the weight-reducing part includes a first weight-reducing part, and the fixture also includes:

[0009] The connecting part is set on the frame and is used to connect with the drive component to drive the frame to move. The first weight reduction part is set between the connecting part and the support beam.

[0010] Furthermore, the connecting part is located in the middle of the frame, and there are multiple first weight-reducing parts arranged around the connecting part.

[0011] Furthermore, the connecting part includes two connecting longitudinal beams and a connecting crossbeam disposed between the two connecting longitudinal beams, wherein the cross-sections of the connecting longitudinal beams and the connecting crossbeam are both polygonal.

[0012] Furthermore, the weight reduction section also includes a second weight reduction section, which consists of a plurality of first weight reduction holes disposed on the connecting longitudinal beam and / or connecting cross beam. At least two of the plurality of first weight reduction holes are mounting holes for mounting the gripper assembly.

[0013] Furthermore, the support beam includes a first crossbeam, a first longitudinal beam, a second crossbeam, and a second longitudinal beam connected end to end along the circumferential direction of the frame; the two ends of the two connecting longitudinal beams are respectively set on the first crossbeam and the second crossbeam, and a first weight-reducing section is formed between one of the connecting longitudinal beams and the first longitudinal beam, and between the other connecting longitudinal beam and the second longitudinal beam.

[0014] Furthermore, a first reinforcing member is provided at the connection between the two connecting longitudinal beams and the first transverse beam.

[0015] Furthermore, a second reinforcing member is provided at the connection between the two connecting longitudinal beams and the second transverse beam; and / or,

[0016] A third reinforcing member is provided at the connection between the connecting crossbeam and the two connecting longitudinal beams.

[0017] Furthermore, the support beam includes multiple support plates distributed circumferentially, with an obtuse angle between each pair of adjacent support plates, and the number of support plates is greater than six.

[0018] According to another aspect of the present invention, a loading and unloading system is provided, including a driving component and a loading and unloading fixture, wherein the loading and unloading fixture is the fixture described above, the fixture is disposed on the driving component, and the driving component drives the fixture to move.

[0019] By applying the technical solution of this utility model, the polygonal design (more than six sides) of the support beam, compared with the traditional circular or square cross-section, allows for a more rational distribution of materials. Through structural optimization, sufficient strength is maintained while reducing material usage. The third weight-reducing component, namely the multiple second weight-reducing holes on the support beam, further reduces the self-weight of the frame, decreasing energy consumption and load on robots or other handling equipment during operation, and improving the overall energy efficiency ratio. Simultaneously, by rationally designing the layout and size of the second weight-reducing holes, the structural strength of the support beam can be ensured, preventing structural failure when handling heavy-load target workpieces.

[0020] The movable position of the gripper assembly on the frame, combined with its positioning via specific mounting holes and installation on the support beam, enables rapid adaptation and precise clamping for different workpiece sizes and shapes. This ensures the gripper assembly's position can be quickly adjusted to match the characteristics of the target workpiece while maintaining a stable installation.

[0021] The lightweight frame, combined with robust support beams and gripper assembly design, helps reduce vibration and noise during handling. The reduced weight decreases inertial forces, lowering vibrations during high-speed movement, while the securely mounted gripper assembly ensures the workpiece is firmly held in place, minimizing additional vibrations caused by workpiece movement. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0023] Figure 1 This diagram illustrates the loading and unloading clamps of an embodiment of this application from a first-view perspective;

[0024] Figure 2 A schematic diagram of the loading and unloading clamps according to an embodiment of this application, viewed from a second perspective, is shown.

[0025] Figure 3 A schematic diagram of the first gripper unit in a clamping state according to an embodiment of this application is shown;

[0026] Figure 4 A schematic diagram of the first gripper unit in the open state according to an embodiment of this application is shown;

[0027] Figure 5 A schematic diagram of the second gripper unit in the open state according to an embodiment of this application is shown;

[0028] Figure 6 A schematic diagram of the positioning component according to an embodiment of this application is shown.

[0029] The above figures include the following reference numerals:

[0030] 1. Support beam; 101. First crossbeam; 102. First longitudinal beam; 103. Second crossbeam; 104. Second longitudinal beam; 2. Weight reduction section; 201. First weight reduction section; 3. Connecting section; 301. Connecting longitudinal beam; 302. Connecting crossbeam; 4. First reinforcing member; 5. Second reinforcing member; 6. Third reinforcing member; 7. First gripper unit; 701. First clamping part; 702. Second clamping part; 703. First mounting bracket; 704. First fixing block; 705. 8. First rotary cylinder; 9. Second gripper unit; 10. Third clamping part; 11. Fourth clamping part; 12. Second mounting bracket; 13. Connector; 14. First connecting body; 15. Adjusting component; 16. Second connecting body; 17. Second rotary cylinder; 18. Positioning assembly; 19. Third connecting body; 10. Third mounting bracket; 11. Positioning component; 12. Positioning pin; 13. Third adjusting component. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] As mentioned in the background section, the purpose of this application is to provide a fixture and a loading / unloading system thereon. The fixture includes a frame that is movably configured. The frame includes a support beam 1 with a polygonal cross-section and the polygon has more than six sides.

[0033] The gripper assembly is movably mounted on the frame to clamp the target workpiece and move the target workpiece to the target station under the drive of the frame.

[0034] The weight reduction part 2 is at least partially disposed on the frame. The weight reduction part 2 includes a third weight reduction part, which is a plurality of second weight reduction holes disposed on the support beam 1. At least two of the plurality of second weight reduction holes are mounting holes for mounting the gripper assembly.

[0035] Specifically, such as Figure 1 As shown, the clamp provided in this application includes a movable frame, the frame including a support beam 1, in... Figure 1Along the direction perpendicular to the upper surface of the support beam 1, the cross-section of the support beam 1 is polygonal with more than six sides. Specifically, the cross-section of the support beam 1 is octagonal. Inside the support beam 1, a weight-reducing part 2 is provided on the frame. The weight-reducing part 2 includes a third weight-reducing part, which includes multiple second weight-reducing holes provided on the support beam 1. At least two of the second weight-reducing holes are mounting holes, which can be threaded holes, so that the gripper assembly can be installed on the support beam 1 through the mounting holes. Specifically, it can be installed by bolts.

[0036] By employing an octagonal, hollow support beam 1 as the core component of the frame, and providing multiple secondary weight-reducing holes on it as mounting holes, the fixture of this application achieves a significant weight reduction effect. The octagonal cross-section design combined with the hollow structure not only provides higher bending and torsional stiffness than ordinary beams, but also effectively reduces material usage and lowers the fixture's self-weight.

[0037] The second weight-reduction hole set on the support beam 1 not only serves as a means of weight reduction but also acts as a mounting hole, allowing the gripper assembly to be securely installed on the support beam 1. At the same time, since some holes are threaded, the bolt installation method greatly simplifies the assembly process of the gripper assembly, improves installation efficiency and flexibility, facilitates quick adjustment and replacement, and meets the gripping needs of different workpieces.

[0038] Among them, such as Figures 1 to 6As shown, the gripper assembly includes two first gripper units 7, which are respectively disposed on the first longitudinal beam 102 and the second longitudinal beam 104, and are movable relative to the first longitudinal beam 102 and the second longitudinal beam 104. Each first gripper unit 7 includes a first clamping portion 701 having a first clamping surface, and a second clamping portion 702. The second clamping portion 702 is pivotally disposed relative to the first clamping portion 701 and has a second clamping surface. A first clamping space is formed between the first clamping surface and the second clamping surface to accommodate at least a portion of the target workpiece for clamping. The first gripper unit 7 also includes... A first mounting bracket 703 is provided on the support beam 1. The first mounting bracket 703 has multiple holes and can be installed on the support beam 1 by bolts, thereby enabling the first gripper unit 7 to be installed on the support beam. A first fixing block 704 and a first rotary cylinder 705 are respectively provided on both sides of the first mounting bracket 703. The first clamping part 701 is fixed to the first fixing block 704 by bolts. The first rotary drive end of the first rotary cylinder 705 is drivenly connected to the second clamping part 702, thereby driving the second clamping part 702 to swing relative to the first clamping part 701, thereby achieving clamping of at least part of the target workpiece. In addition to the release mechanism, the gripper assembly also includes two second gripper units 8, both of which are disposed on the first crossbeam 101. Each second gripper unit 8 includes a third clamping portion 801 having a third clamping surface, and a fourth clamping portion 802 swayably disposed relative to the third clamping portion 801, having a fourth clamping surface. A second clamping space is formed between the third and fourth clamping surfaces to accommodate at least a portion of the target workpiece for clamping. The second gripper unit 8 also includes a second mounting bracket 803, one end of which is movably disposed on the first crossbeam 101 via a connector 804. On the 01, the fourth clamping part 802 is disposed on the second mounting bracket 803, and also includes a second rotary cylinder 805 disposed on the second mounting bracket 803. The second rotary drive end of the second rotary cylinder 805 is drivenly connected to the fourth clamping part 802, thereby driving the fourth clamping part 802 to swing relative to the third clamping part 801, so as to achieve clamping and releasing of the target workpiece. The connecting member 804 includes a first connecting body 8041 disposed on the second mounting bracket 803. An adjusting member 8042 is disposed at the end of the first connecting body 8041 away from the second mounting bracket 803. A second connecting body 8043 is movably disposed on the adjusting member 8042, wherein, as Figure 5As shown, a first receiving hole is provided in the middle of the second mounting bracket 803, and the end of the second mounting bracket 803 away from the fourth clamping part 802 is adjustable. The size of the first receiving hole can be adjusted by the bolts provided thereon. One end of the first connecting body 8041 can extend into the first receiving hole, so the position of the first connecting body 8041 can be adjusted. A second receiving hole for accommodating the second connecting body 8043 is provided on the end of the adjusting member 8042 away from the first connecting body 8041. By adjusting the bolts at the end of the adjusting member 8042, the size of the second receiving hole can be adjusted, thereby adjusting the position of the second connecting body 8043. The first connecting body 8041 and the second connecting body 8043 are both circular tubes, and multiple fourth weight-reducing holes are provided on the first connecting body 8041 and the second connecting body 8043 respectively. The first connecting body 8041 and the second connecting body 8043 are hollow inside. It also includes a positioning component 9 provided on the connecting longitudinal beam 301. The positioning component 9 includes a first... The third connector 901 is a connecting tube with a hollow interior. Multiple fifth weight-reducing holes are provided on the tube wall. The third connector 901 is fixed to the third mounting bracket 902 via a third adjusting member 904. The position of the third connector 901 can also be adjusted relative to the third adjusting member 904, specifically in the same way as adjusting member 8042. The third mounting bracket 902 has multiple strip-shaped holes extending along its extension direction, through which the third adjusting member can be adjusted. Regarding the positional relationship between 904 and the third mounting bracket 902, an adjusting bolt is provided on the third adjusting member 904. The adjusting bolt is inserted into the slotted hole and can move within the slotted hole, and is fixed by components such as nuts. On the other side of the third mounting bracket 902 away from the slotted hole, a positioning member 903 is fixed through bolt holes. The positioning member 903 includes a positioning plate 9031 and a positioning pin 9032. The positioning plate 9031 is an L-shaped plate, and the positioning pin 9032 is used to position the target workpiece for better clamping of the target workpiece. The connecting part 3 also includes a base plate provided on the support beam 1, and a connecting flange is provided on the base plate for connection with the driving component.

[0039] First, the support beam 1 of the fixture features a polygonal cross-section with more than six sides, specifically an octagon. This design provides stronger bending and torsional resistance compared to traditional cylindrical or square beams. Simultaneously, the support beam 1 employs a hollow structure, combined with internal weight-reducing holes, significantly reducing the overall weight of the fixture without compromising its structural robustness and load-bearing capacity. The combination of hollowness and weight-reducing holes minimizes unnecessary material usage, reducing the additional load on the robot during loading and unloading tasks and improving movement flexibility and energy efficiency.

[0040] Secondly, the arrangement of the first gripper unit 7 and the second gripper unit 8 enables multi-angle and omnidirectional clamping of the target workpiece. The combined use of the first clamping part 701 and the second clamping part 702, as well as the third clamping part 801 and the fourth clamping part 802, forms the first clamping space and the second clamping space, which can dynamically adjust the clamping force and clamping position according to the specific size and shape of the workpiece. The arrangement of the first rotary cylinder 705 and the second rotary cylinder 805 allows the second clamping part 702 and the fourth clamping part 802 to swing relative to the first clamping part 701 and the third clamping part 801. This increases the flexibility and precision of the clamping action, enabling the fixture to stably clamp and release complex one-piece die-cast parts weighing over 65KG. Especially when the workpiece has an irregular shape, it can provide more adaptable and reliable clamping force, ensuring the safety of the workpiece during transportation.

[0041] Furthermore, the connector 804, through the cooperation of the first connector 8041 and the second connector 8043 and the fourth weight-reducing hole thereon with the first and second receiving holes, enables the adjustable mounting of the second gripper unit 8 on the first crossbeam 101. This allows for fine-tuning of the gripper unit's position according to the actual position and size requirements of the workpiece, ensuring clamping accuracy and workpiece stability. Especially when dealing with workpieces of various sizes and shapes, this adjustability greatly improves the versatility and adaptability of the fixture.

[0042] Finally, the positioning pin 9032 in the positioning assembly 9 can precisely match specific features (such as holes) on the workpiece, which allows for pre-positioning of the target workpiece before it is clamped by the fixture. The L-shaped design of the positioning plate 9031 can closely fit the edge of the workpiece, further enhancing the stability of positioning. This ensures the precise alignment of the target workpiece throughout the entire loading and unloading process, reduces machining errors caused by inaccurate positioning, and improves the accuracy and efficiency of the overall production process.

[0043] In addition, the connecting flange provided on the base plate of the connecting part 3 is used to connect with the drive component (the drive component is equivalent to the robot above), so that the robot and the support beam 1 can be connected together through the connecting flange, so as to facilitate the quick installation and disassembly of the fixture, and also support the use of the quick change device, so that the fixture can quickly meet the processing needs of different types of workpieces on the same production line.

[0044] Furthermore, the weight-reducing part 2 includes a first weight-reducing part 201, and the fixture also includes:

[0045] The connecting part 3 is disposed on the frame and is used to connect with the drive component to drive the frame to move. The first weight reduction part 201 is disposed between the connecting part 3 and the support beam 1.

[0046] Furthermore, the connecting part 3 is located in the middle of the frame, and there are multiple first weight-reducing parts 201, which are arranged around the connecting part 3.

[0047] like Figure 1 As shown, the weight-reducing part 2 also includes a first weight-reducing part 201, and a connecting part 3 is also provided on the frame. The connecting part 3 is located in the middle of the frame, and the first weight-reducing part 201 is located on both sides of the connecting part 3.

[0048] Furthermore, the connecting part 3 includes two connecting longitudinal beams 301 and a connecting crossbeam 302 disposed between the two connecting longitudinal beams 301, wherein the cross sections of the connecting longitudinal beams 301 and the connecting crossbeam 302 are both polygonal.

[0049] The first weight-reduction section 201 is located between the connecting section 3 and the support beam 1, meaning it is situated in one of the key load-bearing areas of the fixture. By implementing a weight-reduction strategy in this core area of ​​the fixture—that is, through optimized material selection and structural design (e.g., using hollow structures and openwork designs)—the weight of the fixture can be significantly reduced without sacrificing structural strength. Weight reduction lowers the robot's energy consumption during handling, while retaining necessary material distribution and support structures ensures a stable and reliable connection between the connecting section 3 and the support beam 1 during high-speed or complex handling operations, avoiding structural instability caused by improper weight reduction.

[0050] The first weight-reducing unit 201 is not a single unit, but rather distributed in multiple units around the connecting part 3. This distributed weight-reducing strategy allows for a uniform reduction of the fixture's weight while maintaining overall structural balance. The unit-based distribution of the first weight-reducing unit 201 not only reduces the eccentricity effect caused by localized overweight, but also ensures good dynamic balance of the fixture during multi-dimensional movements, reducing vibration and sway, and further improving the fixture's safety and operational accuracy.

[0051] Furthermore, the weight reduction part 2 also includes a second weight reduction part, which is a plurality of first weight reduction holes provided on the connecting longitudinal beam 301 and / or the connecting cross beam 302. At least two of the plurality of first weight reduction holes are mounting holes for mounting the gripper assembly.

[0052] The connecting longitudinal beam 301 and connecting transverse beam 302, which employ polygonal cross-sections, offer superior bending and torsional resistance compared to traditional circular or square cross-sections. With the same amount of material, the polygonal cross-section can better distribute internal stress, especially under non-uniform loads or external impacts. This results in greater structural rigidity, ensuring the stability of the fixture when handling heavy workpieces and reducing deformation and displacement.

[0053] The connecting longitudinal beam 301 and the connecting transverse beam 302 not only possess high strength but also achieve lightweighting through their polygonal cross-section design. While maintaining structural rigidity, the polygonal cross-section can be designed to be more compact, reducing unnecessary material usage and thus lightening the weight.

[0054] The polygonal connecting longitudinal beam 301 and connecting transverse beam 302 design of the connecting part 3 also facilitates the modular assembly of the fixture. When facing production lines that need to process workpieces of different sizes and shapes, this modular design can quickly adapt to process changes. By adjusting the usage of holes on the connecting beams or increasing / decreasing the number of connecting beams, the size and clamping capacity of the fixture can be changed, thereby improving the versatility of the fixture and the flexibility of the production line.

[0055] Furthermore, the support beam 1 includes a first crossbeam 101, a first longitudinal beam 102, a second crossbeam 103, and a second longitudinal beam 104 connected end to end along the circumferential direction of the frame; the two ends of the two connecting longitudinal beams 301 are respectively disposed on the first crossbeam 101 and the second crossbeam 103, and a first weight-reducing part 201 is formed between one of the connecting longitudinal beams 301 and the first longitudinal beam 102, and between the other connecting longitudinal beam 301 and the second longitudinal beam 104.

[0056] Specifically, the support beam 1 is a rectangular frame, which includes a first horizontal beam 101, a first longitudinal beam 102, a second horizontal beam 103, and a second longitudinal beam 104 connected end to end along the circumferential direction of the frame. The two ends of the two connecting longitudinal beams 301 are respectively set on the first horizontal beam 101 and the second horizontal beam 103. A first weight-reducing part 201 is formed between one of the connecting longitudinal beams 301 and the first longitudinal beam 102, and between the other connecting longitudinal beam 301 and the second longitudinal beam 104.

[0057] The rectangular frame support beam 1 is designed and connected circumferentially by the first horizontal beam 101, the first vertical beam 102, the second horizontal beam 103, and the second vertical beam 104. This closed frame structure can effectively distribute and resist external loads. Especially when bearing heavy workpieces, it can reduce structural deformation and ensure the accuracy and reliability of the fixture.

[0058] The relative positioning design between the two connecting longitudinal beams 301 of the connecting part 3 and the first longitudinal beam 102 and the second longitudinal beam 104 of the supporting beam 1 forms the first weight-reducing part 201. By reducing weight in a specific area (i.e., the intersection of the connecting longitudinal beams 301 with the first longitudinal beam 102 and the second longitudinal beam 104), the strength of key connection points is ensured while minimizing material usage, achieving the goal of structural lightweighting. Lightweight design not only reduces energy consumption for automated equipment (such as robots) during handling but also improves the overall system's response speed and operational flexibility.

[0059] Within the rectangular frame structure, the modularity and adjustability of the fixture are increased through the inclusion of the first weight-reducing section 201. This means that when it is necessary to accommodate workpieces of different sizes or shapes, the fixture can be quickly reconfigured by adjusting the position and angle of the connecting longitudinal beam 301 and optimizing the hole layout of the first weight-reducing section 201.

[0060] Because the support beam 1 and the connecting longitudinal beam 301 adopt a polygonal cross-section design, the optimized layout of the first weight-reducing part 201 can also improve the thermodynamic and dynamic characteristics of the fixture. The polygonal cross-section and weight-reducing holes can promote the uniform distribution of heat, reduce thermal deformation, and at the same time reduce air resistance during movement, thereby improving motion efficiency.

[0061] Furthermore, a first reinforcing member 4 is provided at the connection between the two connecting longitudinal beams 301 and the first transverse beam 101; and / or, a second reinforcing member 5 is provided at the connection between the two connecting longitudinal beams 301 and the second transverse beam 103; and / or,

[0062] A third reinforcing member 6 is provided at the connection between the connecting crossbeam 302 and the two connecting longitudinal beams 301.

[0063] Specifically, the first reinforcing member 4, the second reinforcing member 5, and the third reinforcing member 6 are all triangular structures, and the right-angled side of each reinforcing member is connected to the corresponding horizontal beam or vertical beam.

[0064] As one of the most stable basic geometric shapes, the triangular structure, when used as a reinforcing member, can effectively enhance the connection strength between beams and reduce structural deformation under external pressure or load. The first reinforcing member 4 and the second reinforcing member 5 reinforce the connection between the connecting longitudinal beam 301 and the first crossbeam 101 and the second crossbeam 103, while the third reinforcing member 6 strengthens the intersection of the connecting crossbeam 302 and the two connecting longitudinal beams 301, forming a more rigid and stable connection system.

[0065] By adding the first reinforcing member 4, the second reinforcing member 5, and the third reinforcing member 6, the load-bearing capacity of the fixture has been significantly improved, which is especially important for handling large, heavy-duty integrated die-cast parts. More importantly, the enhanced structural stability means that the workpiece positioning is more precise throughout the handling process, reducing clamping deviations caused by beam deformation, thereby improving processing quality and production efficiency.

[0066] The introduction of triangular reinforcements also indirectly optimizes the thermodynamic properties of the fixture. Due to the rational distribution of the reinforcements, heat is effectively distributed evenly, preventing material fatigue and structural damage caused by localized overheating, thus enhancing the fixture's durability and long-term reliability. Furthermore, the inherent stability of the triangular structure helps reduce the negative impacts of thermal expansion and contraction, ensuring the fixture's operational stability under various temperature conditions.

[0067] Each reinforcing member has its right-angled side connected to a corresponding crossbeam or longitudinal beam. This design simplifies the fixture assembly process and makes the connections between beams more robust and easier to achieve. At the same time, the clear structure of the triangular reinforcing members facilitates daily inspection and maintenance, reducing production downtime and maintenance costs.

[0068] Furthermore, the support beam 1 includes multiple support plates, which are distributed circumferentially, and the included angle between any two adjacent support plates is an obtuse angle. The number of support plates is greater than six.

[0069] The octagonal cross-section support beam 1 achieves a balance between structural strength and weight reduction by increasing the number of sides. Compared to traditional circular or square cross-sections, the octagonal shape can more efficiently distribute stress, reduce material accumulation in unnecessary areas, and maintain sufficient structural rigidity. The eight support plates ensure adequate lateral and longitudinal support, forming a robust frame capable of supporting the weight of the integral die-cast component, while the obtuse-angle connections help improve the overall structural stability and reduce the risk of deformation during load-bearing and handling.

[0070] The obtuse angle connection between each pair of adjacent support plates enhances the support beam 1's resistance to bending and torsion. In automated loading and unloading scenarios in gantry machining, the fixture needs to move rapidly and complexly in multi-dimensional space. The high bending and torsional resistance of the octagonal cross-section ensures that the fixture's movement is not affected by structural deformation when handling large, heavy-duty workpieces.

[0071] The octagonal cross-section composed of multiple plates improves the thermal performance of the fixture. Each support plate can be designed with heat dissipation holes or hollow sections, which not only helps reduce weight but also facilitates rapid dissipation of internal heat. During gantry machining, the fixture may accumulate a large amount of heat due to high-speed movement and frequent clamping and releasing actions. The heat dissipation characteristics of the octagonal design help maintain the fixture's operating temperature within a reasonable range, extend its service life, and ensure the continuity and stability of operation.

[0072] The octagonal structure of support beam 1 and the configuration of multiple support plates facilitate modular connection with other components (such as gripper units, reinforcements, etc.). Since each support plate has preset connection holes, the position and number of each module can be adjusted according to specific application requirements, thereby improving the fixture's customization capabilities and compatibility with workpieces of different specifications.

[0073] Furthermore, this application also provides a loading and unloading system, including a drive component and a loading and unloading fixture, wherein the loading and unloading fixture is the fixture described above, the fixture is mounted on the drive component, and the drive component drives the fixture to move, wherein the drive component here is the robot mentioned above.

[0074] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0075] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0076] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0077] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0078] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0079] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clamp for holding a target workpiece, characterized in that, The clamp includes: The frame is movably configured and includes a support beam (1) with a polygonal cross-section and the polygon having more than six sides. The gripper assembly is movably mounted on the frame to clamp the target workpiece and, driven by the frame, move the target workpiece to the target workstation. Weight reduction part (2), at least part of which is disposed on the frame, the weight reduction part (2) includes a third weight reduction part, which is a plurality of second weight reduction holes disposed on the support beam (1), at least two of which are mounting holes for mounting the gripper assembly.

2. The clamp according to claim 1, characterized in that, The weight-reducing part (2) includes a first weight-reducing part (201), and the fixture further includes: A connecting part (3) is provided on the frame and is used to connect with the driving component to drive the frame to move. The first weight reduction part (201) is provided between the connecting part (3) and the support beam (1).

3. The clamp according to claim 2, characterized in that, The connecting part (3) is located in the middle of the frame, and there are multiple first weight-reducing parts (201), which are arranged around the connecting part (3).

4. The clamp according to claim 2 or 3, characterized in that, The connecting part (3) includes two connecting longitudinal beams (301) and a connecting crossbeam (302) disposed between the two connecting longitudinal beams (301), wherein the cross sections of the connecting longitudinal beams (301) and the connecting crossbeam (302) are both polygons.

5. The clamp according to claim 4, characterized in that, The weight reduction part (2) further includes a second weight reduction part, which is a plurality of first weight reduction holes provided on the connecting longitudinal beam (301) and / or the connecting cross beam (302), at least two of the plurality of first weight reduction holes are mounting holes, which are used to install the gripper assembly.

6. The clamp according to claim 4, characterized in that, The support beam (1) includes a first crossbeam (101), a first longitudinal beam (102), a second crossbeam (103), and a second longitudinal beam (104) connected end to end along the circumferential direction of the frame; the two ends of the two connecting longitudinal beams (301) are respectively disposed on the first crossbeam (101) and the second crossbeam (103), and the first weight-reducing part (201) is formed between one of the connecting longitudinal beams (301) and the first longitudinal beam (102) and between the other connecting longitudinal beam (301) and the second longitudinal beam (104).

7. The clamp according to claim 6, characterized in that, A first reinforcing member (4) is provided at the connection between the two connecting longitudinal beams (301) and the first transverse beam (101).

8. The clamp according to claim 6, characterized in that, A second reinforcing member (5) is provided at the connection between the two connecting longitudinal beams (301) and the second transverse beam (103); and / or, A third reinforcing member (6) is provided at the connection between the connecting crossbeam (302) and the two connecting longitudinal beams (301).

9. The clamp according to claim 1, characterized in that, The support beam (1) includes multiple support plates, which are circumferentially distributed. The included angle between any two adjacent support plates is an obtuse angle, and the number of support plates is greater than six.

10. A loading and unloading system, comprising a drive component and loading / unloading clamps, characterized in that, The loading and unloading clamp is any one of claims 1 to 9, the clamp is disposed on the driving component, and the driving component drives the clamp to move.

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