Flexible multifunctional clamp device
By designing a flexible, multi-functional clamping device, the problem of insufficient adaptability of existing clamping fixtures and tooling was solved, realizing multi-station clamping and self-adaptive functions, thereby improving production efficiency and equipment compatibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU CORE TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-01
AI Technical Summary
Existing fixtures typically have only one positioning station, which cannot meet the clamping requirements of different types of parts, resulting in low production efficiency and high equipment purchase costs, especially for parts that can be elastically deformed, which cannot be reliably clamped.
Design a flexible multifunctional clamping device, including an overall quick-change mechanism, a state switching mechanism, and multiple clamping mechanisms. The device switches between different clamping states via a robotic arm to adapt to multi-station clamping needs and has elastic, horizontal, vertical, and internal hole clamping functions.
It improves production efficiency, reduces equipment purchase costs, enhances the compatibility and adaptability of fixtures, and ensures reliable clamping of elastically deformable parts.
Smart Images
Figure CN224182911U_ABST
Abstract
Description
A flexible multifunctional clamping device Technical Field
[0001] This utility model relates to the field of clamping technology, and in particular to a flexible multifunctional clamping device. Background Technology
[0002] In the field of machining, certain parts require clamping and positioning using appropriate tooling fixtures for processing or installation. However, existing tooling fixtures typically have only one positioning station, and in actual production, a robotic arm must continuously switch between different types of tooling fixtures throughout the production process to meet the clamping or positioning needs of different parts. This not only reduces production efficiency but also increases equipment purchase costs, which is very uneconomical for enterprises.
[0003] At the same time, existing fixtures and tooling typically only have one mounting surface for clamping parts, resulting in low integration and poor adaptability. This is especially true when applied to elastically deformable parts, as they cannot adaptively adjust their clamping state, which may lead to part deformation and make it impossible to reliably clamp and fix the elastically deformable parts. Therefore, it is very meaningful to improve the functionality of existing fixtures and tooling to make them more versatile and adaptive. Summary of the Invention
[0004] The main purpose of this invention is to propose a flexible and multifunctional fixture device with multiple workstations and strong compatibility, which aims to improve the structure and function of tooling fixtures and increase work efficiency.
[0005] To achieve the above objectives, this utility model proposes a flexible multifunctional clamping device, including an integral quick-change mechanism connected to a robotic arm. The integral quick-change mechanism is connected to the fixed end of a state switching mechanism via an upper bracket. The free end of the state switching mechanism is connected to a lower bracket. An elastic clamping mechanism is provided on the first side of the lower bracket. A horizontal clamping mechanism and a vertical clamping mechanism are provided on the second side of the lower bracket. An inner hole clamping mechanism is provided on the third side of the lower bracket.
[0006] Preferably, the elastic clamping mechanism includes a first telescopic component fixedly connected to the lower support. The first telescopic component has two telescopic ends, each with a first clamping block. The first telescopic component has an installation platform facing outward. The installation platform has second clamping blocks on both sides. The straight line connecting the two second clamping blocks and the straight line connecting the two first clamping blocks intersect by projection. The installation platform has an elastic support facing the back of the lower support.
[0007] Preferably, the horizontal clamping mechanism includes a second telescopic component fixedly connected to the lower support. The second telescopic component has two telescopic ends, each of which is provided with a third clamping block. When the second telescopic component is in a continuously retracting state, it pushes the two third clamping blocks to clamp and fix the part.
[0008] Preferably, the vertical clamping mechanism includes a third telescopic component fixedly connected to the lower support. The third telescopic component has two telescopic ends, each of which is provided with a fourth clamping block. When the third telescopic component is in a continuously retracting state, it pushes the two fourth clamping blocks to clamp and fix the part.
[0009] Preferably, the linear movement direction of the second telescopic component and the linear movement direction of the third telescopic component are perpendicular to each other.
[0010] Preferably, the inner hole clamping mechanism is provided with a plurality of support rods and a plurality of positioning rods, the support rods and / or positioning rods respectively cooperating with different positions of the disc-shaped part for positioning; the inner hole clamping mechanism is provided with a plurality of fifth clamping blocks that can be simultaneously radially extended and retracted, at least two fifth clamping blocks simultaneously expanding outward to support the inner hole of the disc-shaped part.
[0011] Preferably, the state switching mechanism includes a telescopic push rod, the fixed end of which is connected to the upper bracket, the movable end of which is hinged to the lower bracket at a first hinge point, and the upper bracket and the lower bracket are hinged to each other at a second hinge point. The first hinge point is at a lower height in the vertical direction than the second hinge point.
[0012] Preferably, the top plate of the upper support serves as the first link, the distance from the fixed point of the telescopic push rod to the movable end point of the telescopic push rod serves as the second link, the distance from the first hinge point to the second hinge point serves as the third link, and the distance between the top plate of the upper support and the second hinge point serves as the fourth link; the first link, the second link, the third link, and the fourth link together form a four-link support system.
[0013] Preferably, the upper bracket and the lower bracket are positioned by insertion positioning blocks and insertion positioning grooves on an inclined surface.
[0014] Preferably, the overall quick-change mechanism is a quick-connect plate set on the top plate of the upper support. The connection state between the quick-connect plate and the robotic arm is switched by inputting fluid into the quick-connect plate. Positioning holes are provided on both sides of the top plate on both sides of the quick-connect plate. When the robotic arm and the quick-connect plate are in the connected state, the positioning block of the robotic arm is inserted into the positioning hole.
[0015] The technical solution of this utility model has the following advantages over the prior art:
[0016] This utility model's technical solution uses an integrated quick-change mechanism connected to the fixed end of the upper bracket and the state switching mechanism. The free end of the state switching mechanism is connected to the lower bracket. The first side of the lower bracket is equipped with an elastic clamping mechanism, the second side of the lower bracket is equipped with a horizontal clamping mechanism and a vertical clamping mechanism, and the third side of the lower bracket is equipped with an inner hole clamping mechanism. This allows the flexible multi-functional clamping device to simultaneously have multiple workstations and corresponding mechanisms for clamping parts. Furthermore, the clamping state can be easily switched using a robotic arm, making it suitable for the functional requirements of different working positions. It boasts excellent space utilization and an overall switching function, greatly improving the compatibility of the equipment mechanism. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0018] Figure 1 is a three-dimensional schematic diagram of the flexible multifunctional clamping device of this utility model in the open state;
[0019] Figure 2 is a magnified view of part A in Figure 1;
[0020] Figure 3 is a three-dimensional schematic diagram of another three-dimensional mechanism of the flexible multifunctional clamping device of this utility model in the open state;
[0021] Figure 4 is a three-dimensional schematic diagram of the flexible multifunctional clamping device of this utility model in a folded state.
[0022] Explanation of icon numbers:
[0023] 1. Overall quick-change mechanism; 101. Quick-connecting disc; 102. Positioning hole; 2. Upper bracket; 21. Top plate; 22. Quick-connecting disc; 3. State switching mechanism; 31. Telescopic push rod; 32. First hinge point; 33. Second hinge point; 4. Lower bracket; 5. Elastic clamping mechanism; 51. First telescopic component; 52. First clamping block; 521. Positioning groove; 53. Mounting platform; 531. Second clamping block; 54. Spring; 55. Central shaft; 56. Wave spring; 6. Horizontal clamping mechanism; 61. Second telescopic component; 62. Third clamping block; 7. Vertical clamping mechanism; 71. Third telescopic component; 72. Fourth clamping block; 8. Inner hole clamping mechanism; 81. Support rod; 82. Positioning rod; 83. Fifth clamping block; 84. Expansion claw mechanism; 9. Disc-shaped part; 10. Telescopic rod; 11. Insertion positioning block; 12. Insertion positioning groove.
[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This utility model proposes a flexible multifunctional clamping device.
[0027] Please refer to Figures 1-4. The flexible multi-functional clamping device of this utility model embodiment includes an integral quick-change mechanism 1 connected to a robotic arm (not shown in the figure). The integral quick-change mechanism 1 is connected to the fixed end of the state switching mechanism 3 via the upper bracket 2. In addition, the free end of the state switching mechanism 3 is connected to the lower bracket 4. The first side of the lower bracket 4 is provided with an elastic clamping mechanism 5, the second side of the lower bracket 4 is provided with a horizontal clamping mechanism 6 and a vertical clamping mechanism 7, and the third side of the lower bracket 4 is provided with an inner hole clamping mechanism 8. Therefore, by setting different clamping mechanisms on different sides of the lower bracket 4, different types of parts can be clamped and positioned. Moreover, the different clamping mechanisms are set in different positions, and there is no interference between them, which greatly improves the overall compatibility of the flexible multi-functional clamping device.
[0028] Please refer to Figure 2. Preferably, the elastic clamping mechanism 5 of this utility model includes a first telescopic component 51 fixedly connected to the lower bracket 4. The first telescopic component 51 can be a pneumatic telescopic push rod or a hydraulic telescopic push rod that actuates at both ends simultaneously. The first telescopic component 51 is provided with two telescopic ends, and each telescopic end is provided with a first clamping block 52. When the two first clamping blocks 52 approach each other, the parts can be radially clamped toward their center.
[0029] More preferably, the two first clamping blocks 52 are provided with positioning grooves 521 on the inner side, so that during the process of the two first clamping blocks 52 clamping the part, the outer periphery of the part is embedded in the positioning grooves 521, and it is not easy for it to move.
[0030] More preferably, the two first clamping blocks 52 are respectively provided with different clamping claws at different positions, so that clamping force can be applied to the parts in different directions during the clamping process, which can more effectively prevent the parts from moving.
[0031] Furthermore, the elastic clamping mechanism 5 of this invention has an installation platform 53 on the outer side of the first telescopic component 51. Second clamping blocks 531 are fixedly installed on both sides of the installation platform 53. The straight line connecting the two second clamping blocks 531 and the straight line connecting the two first clamping blocks 52 intersect by projection. That is, the straight line connecting the two second clamping blocks 531 and the straight line connecting the first clamping blocks 52 are not the same in space, but they intersect when projected onto the side of the lower support 4. Additionally, the installation platform 53 of this invention has an elastic support on the back of the lower support 4. The elastic support is a spring 54, and a central shaft 55 passes through the center of the spring 54. The installation platform 53 is slidably connected to the central shaft 55, and the spring 54 can elastically deform and support the installation platform 53.
[0032] In practical applications, if a part with spatial torsion deformation, such as a wave spring 56, is not on the same plane, the first telescopic component 51 pushes the two first clamping blocks 52 to their maximum positions. Then, the wave spring 56 is positioned inside the second clamping block 531. The first telescopic component 51 then uses the two first clamping blocks 52 to gradually clamp the wave spring 56. Since the wave spring 56 will undergo certain torsion deformation during the gradual clamping and fixing process, the mounting platform 53 slides axially relative to the central axis 55 to adapt to and match the torsion deformation of the wave spring 56. After the first clamping block 52 and the second clamping block 531 have clamped the wave spring 56 in place, the spring 54 on the back of the mounting platform 53 supports the mounting platform 53 to prevent it from moving again, thus maintaining the reliable positioning of the wave spring 56.
[0033] Please refer to Figure 3. The horizontal clamping mechanism 6 of this utility model includes a second telescopic component 61 fixedly connected to the lower support 4. The second telescopic component 61 has two telescopic ends, each with a third clamping block 62. When the second telescopic component 61 is in a continuously retracting state, it pushes the two third clamping blocks 62 to clamp and fix the part. The vertical clamping mechanism 7 also includes a third telescopic component 71 fixedly connected to the lower support 4. The third telescopic component 71 has two telescopic ends, each with a fourth clamping block 72. When the third telescopic component 71 is in a continuously retracting state, it pushes the two fourth clamping blocks 72 to clamp and fix the part. In terms of spatial layout, the linear movement direction of the second telescopic component 61 and the linear movement direction of the third telescopic component 71 are perpendicular to each other. That is, the horizontal clamping mechanism 6 is set to a horizontal state, while the vertical clamping mechanism 7 is set to a vertical state. Therefore, the horizontal clamping mechanism 6 and the vertical clamping mechanism 7 can be used for clamping and positioning parts in different placements or installation configurations. Furthermore, the horizontal clamping mechanism 6 and the vertical clamping mechanism 7 work closely together, making the overall mechanism more compact and rational.
[0034] Preferably, the third clamping block 62 and / or the fourth clamping block 72 of this utility model may be provided with grooves, such as V-shaped grooves or U-shaped grooves, on the inner side of the clamping surface of the part, so as to closely connect and position different parts, and the parts are not easily displaced during the clamping and positioning process.
[0035] The internal clamping mechanism 8 of this invention is provided with several support rods 81 and several positioning rods 82. The support rods 81 and / or positioning rods 82 are respectively positioned and connected to different positions of the disc-shaped part 9. In this invention, two positioning rods 82 are provided at the bottom of the lower bracket 4. The front end of the positioning rod 82 has a conical structure so that it can be inserted into the lower part of the disc-shaped part 9 for positioning. In addition, a support rod 81 is provided at the top of the lower bracket 4. The support rod 81 supports the side of the disc-shaped part 9 for initial positioning. A telescopic rod 10 is also provided at the top of the lower bracket 4. The front end of the telescopic rod 10 has a positioning step to insert and position the side of the disc-shaped part 9 and to position the disc-shaped part 9 to the optimal placement state by moving it back and forth.
[0036] In addition, the inner hole clamping mechanism 8 is provided with several fifth clamping blocks 83 that can simultaneously extend and retract radially. At least two fifth clamping blocks 83 simultaneously extend outward to support and position the disc-shaped part 10 within the inner hole. The inner hole clamping mechanism 8 of this invention has an expansion claw mechanism 84 provided on the surface of the lower support 4. The expansion claw mechanism 81 has three expansion claws inside, which serve as the fifth clamping blocks 83. Through internal actuation of the expansion claw mechanism, the three expansion claws are radially moved away, and simultaneously abut against the inner hole of the disc-shaped part 9 at a designated position. Ultimately, the disc-shaped part 9 is supported and fixed, facilitating subsequent spatial movement.
[0037] Please refer to Figure 1. The state switching mechanism 3 of this utility model includes a telescopic push rod 31. The fixed end of the telescopic push rod 31 is connected to the upper bracket 4, and the movable end of the telescopic push rod 31 is hinged to the lower bracket 4 at the first hinge point 32. The upper bracket 2 and the lower bracket 4 are hinged to each other at the second hinge point 33. The vertical height of the first hinge point 32 is lower than that of the second hinge point 33. The top plate 21 of the upper bracket 2 serves as the first connecting rod, the distance from the fixed point of the top plate 21 of the upper bracket 2 to the movable end point of the telescopic push rod 31 (the first hinge point 32) serves as the second connecting rod, the distance from the first hinge point 32 to the second hinge point 33 serves as the third connecting rod, and the distance between the top plate 21 of the upper bracket 2 and the second hinge point 33 serves as the fourth connecting rod. The first connecting rod, the second connecting rod, the third connecting rod, and the fourth connecting rod together form a four-bar support system.
[0038] During actual operation, the movable end of the telescopic push rod 31 retracts inward, causing the lower support 4 to rotate upward relative to the upper support 2 around the second hinge point 33. After the telescopic push rod 31 retracts to its limit position, the lower support 4 rotates 90 degrees relative to the upper support 2. This means that the aforementioned elastic clamping mechanism 5, horizontal clamping mechanism 6, vertical clamping mechanism 7, and inner hole clamping mechanism 8 have rotated 90 degrees in space, thus the flexible multi-functional clamping device switches from the 0° first position state to the 90° second position state. When the telescopic push rod 31 performs the reverse operation, its movable end pushes outward, causing the lower support 4 to rotate downward relative to the upper support 2 around the second hinge point 33. After the telescopic push rod 31 is pushed to its limit position, the lower support 4 rotates 90 degrees relative to the upper support 2, thus the multi-functional clamping device switches from the second position state to the first position state.
[0039] Preferably, one side of the upper support 2 is provided with a plug-in positioning block 11, and one side of the lower support 4 is provided with a plug-in positioning groove 12. The plug-in positioning block 11 and the plug-in positioning groove 12 are plugged in and positioned with inclined surfaces. When the multi-functional clamping device switches from the second working position state to the first working position state, the plug-in positioning block 11 and the plug-in positioning groove 12 are connected and positioned by plugging in, so as to avoid the flexible multi-functional clamping device from shifting or loosening at the position of the state switching mechanism during the actual operation of the robotic arm. In addition, the plug-in positioning block 11 and the plug-in positioning groove 12 can also be provided on the same side of the upper support 2 and the lower support 4, and the two are positioned in a staggered manner to ensure the reliability of the connection state after switching from the first working position state to the second working position state.
[0040] In addition, the overall quick-change mechanism 1 of this utility model is a quick-connect plate 101 set on the top plate 21 of the upper support 2. By inputting fluid into the quick-connect plate 101, the connection state of the quick-connect plate 101 and the robotic arm can be switched. Positioning holes 102 are provided on both sides of the top plate 21 on both sides of the quick-connect plate 101. When the robotic arm and the quick-connect plate are in the connected state, the positioning block of the robotic arm is inserted into the positioning hole 102 to ensure the reliability of the connection.
[0041] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.
Claims
1. A flexible multi-functional clamp device, characterized by, It includes an integrated quick-change mechanism connected to the robotic arm. The integrated quick-change mechanism is connected to the fixed end of the state switching mechanism via the upper bracket. The free end of the state switching mechanism is connected to the lower bracket. The first side of the lower bracket is provided with an elastic clamping mechanism. The second side of the lower bracket is provided with a horizontal clamping mechanism and a vertical clamping mechanism. The third side of the lower bracket is provided with an inner hole clamping mechanism.
2. The flexible multifunctional clamping device as described in claim 1, characterized in that, The elastic clamping mechanism includes a first telescopic component fixedly connected to the lower bracket. The first telescopic component has two telescopic ends, each with a first clamping block. The first telescopic component has an installation platform facing outward. The installation platform has second clamping blocks on both sides. The straight line connecting the two second clamping blocks and the straight line connecting the two first clamping blocks intersect by projection. The installation platform has an elastic support facing the back of the lower bracket.
3. The flexible multi-functional clamp apparatus of claim 1, wherein, The horizontal clamping mechanism includes a second telescopic component fixedly connected to the lower support. The second telescopic component has two telescopic ends, each of which is provided with a third clamping block. When the second telescopic component is in a continuously retracting state, it pushes the two third clamping blocks to clamp and fix the parts.
4. The flexible multifunctional clamping device as described in claim 3, characterized in that, The vertical clamping mechanism includes a third telescopic component fixedly connected to the lower support. The third telescopic component has two telescopic ends, each of which is provided with a fourth clamping block. When the third telescopic component is in a continuously retracting state, it pushes the two fourth clamping blocks to clamp and fix the parts.
5. The flexible multifunctional clamping device as described in claim 4, characterized in that, The linear movement direction of the second telescopic component and the linear movement direction of the third telescopic component are perpendicular to each other.
6. The flexible multifunctional clamping device as described in claim 1, characterized in that, The inner hole clamping mechanism is provided with a number of support rods and a number of positioning rods, and the support rods and / or positioning rods are respectively positioned in conjunction with different positions of the disc-shaped part; the inner hole clamping mechanism is provided with a number of fifth clamping blocks that can be simultaneously radially extended and retracted, and at least two fifth clamping blocks simultaneously extend outward to support the inner hole of the disc-shaped part.
7. The flexible multi-functional clamp apparatus of claim 1, wherein, The state switching mechanism includes a telescopic push rod. The fixed end of the telescopic push rod is connected to the upper bracket, and the movable end of the telescopic push rod is hinged to the lower bracket at a first hinge point. The upper bracket and the lower bracket are hinged to each other at a second hinge point. The first hinge point is lower than the second hinge point in the vertical direction.
8. The flexible multifunctional clamping device as described in claim 7, characterized in that, The top plate of the upper support serves as the first link, the distance from the fixed point of the telescopic push rod to the movable end point of the telescopic push rod serves as the second link, the distance from the first hinge point to the second hinge point serves as the third link, and the distance between the top plate of the upper support and the second hinge point serves as the fourth link; the first link, the second link, the third link, and the fourth link together form a four-link support system.
9. The flexible multi-functional clamp apparatus of claim 7, wherein, The upper bracket and the lower bracket are positioned by inserting positioning blocks and inserting positioning grooves on an inclined surface.
10. The flexible multi-functional clamp apparatus of claim 1, wherein, The overall quick-change mechanism is a quick-connect plate set on the top plate of the upper support. By inputting fluid into the quick-connect plate, the connection state between the quick-connect plate and the robotic arm is switched to the disconnect state. Positioning holes are provided on both sides of the top plate on both sides of the quick-connect plate. When the robotic arm and the quick-connect plate are in the connected state, the positioning block of the robotic arm is inserted into the positioning hole.