A self-adaptive grabbing device of a paint spraying hoisting equipment
By designing an adaptive gripping device, the problem of unstable gripping in traditional painting hoisting equipment was solved, enabling stable gripping of workpieces of different sizes, improving the uniformity of painting and production efficiency, and reducing operational complexity and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI HONGGUANG RUBBER PLASTIC & METAL PROD CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-06-05
AI Technical Summary
The fixed gripping device of traditional spray painting hoisting equipment is difficult to adapt to workpieces of different sizes, resulting in unstable gripping and uneven force, which affects the uniformity of spraying and may damage the workpiece. In addition, it is highly complicated to operate and has low production efficiency.
An adaptive gripping device for painting hoisting equipment was designed, including a mounting plate, a squeezing component, a tossing component, a gripping component, and a pressing component. It achieves adaptive gripping of workpieces of different sizes through hydraulic rods and pressure sensors, and uses a PLC controller to adjust the gripping force.
It enables stable gripping of workpieces of different sizes, avoids damage, simplifies the operation process, improves production efficiency, and reduces the cost of manual intervention.
Smart Images

Figure CN224325046U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gripping device technology, specifically an adaptive gripping device for a painting hoisting equipment. Background Technology
[0002] In industrial production, painting is a crucial process in the automotive, furniture, and electronics industries, demanding stringent requirements for the quality and aesthetics of the workpiece surface. However, traditional painting hoisting equipment often employs fixed gripping devices, which are structurally simple, lack flexibility, and are ill-suited for workpieces of varying sizes. This limitation is particularly pronounced when gripping workpieces with significant size variations, easily leading to unstable gripping, uneven force, and consequently affecting the uniformity of the paint application, potentially even causing surface damage. Furthermore, fixed gripping devices often require frequent replacement or manual adjustments when dealing with diverse workpieces, increasing operational complexity and reducing production efficiency. Increased manual intervention also leads to higher costs and potential errors. Therefore, we propose an adaptive gripping device for painting hoisting equipment. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an adaptive gripping device for painting hoisting equipment, which can grip workpieces of different sizes and effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an adaptive gripping device for painting hoisting equipment, comprising a mounting plate and an extrusion assembly;
[0005] Installation plate: A toggle component is installed on the side, a gripping component is installed at the lower end of the toggle component, and a pressing component is installed at the upper end of the installation plate;
[0006] The extrusion assembly includes a mounting frame, slide bars, extrusion plates, and inclined plates. The mounting frame is fixed to the upper end of the mounting plate. The mounting frame has evenly distributed openings on its side. Slide bars are slidably connected inside the openings. An inclined plate is fixed to the side of the slide bar inside the mounting frame. An extrusion plate is fixed to the other side of the slide bar. The actuating assembly is connected to all the extrusion plates. Evenly distributed reset assemblies are installed on the side of the mounting frame. The reset assemblies are connected to the inclined plates. The extrusion assembly is used to extrude all the connecting plates.
[0007] Furthermore, the reset assembly includes a fixing frame, a sliding rod, and a spring. The fixing frames are evenly distributed on the side of the mounting frame. The fixing frames have sliding holes on their sides. A sliding rod is slidably connected inside the sliding holes. The sliding rod is fixed to the side of the inclined plate. A spring is sleeved on the circumference of the sliding rod. One end of the spring is fixed to the side of the inclined plate, and the other end of the spring is fixed to the side of the fixing frame. The reset assembly drives the inclined plate to reset.
[0008] Furthermore, the actuating assembly includes a mounting ring, a rotating shaft, torsion springs, and a connecting plate. The mounting plate has evenly distributed grooves on its circumferential surface. A rotating shaft is rotatably connected inside the grooves. A mounting ring is fixed to the circumferential surface of the rotating shaft. Two corresponding torsion springs are sleeved on the circumferential surface of the rotating shaft. One adjacent end of each torsion spring is fixed to one end of the mounting ring, and the other ends of both torsion springs are fixed inside the grooves. A connecting plate is fixed to the upper end of the circumferential surface of the mounting ring. The connecting plate is in contact with the pressing plate. The actuating assembly drives the gripping assembly to rotate.
[0009] Furthermore, the gripping assembly includes a first hydraulic rod, a gripping rod, and a pressure sensor. The first hydraulic rod is installed at the lower end of the circumferential surface of the mounting ring. The gripping rod is fixed on the telescopic arm of the first hydraulic rod. The pressure sensor is installed on the side of the gripping rod. The pressure sensor is bidirectionally electrically connected to an external PLC controller. The input end of the first hydraulic rod is electrically connected to the output end of the external PLC controller. The gripping assembly is used to grip the workpiece.
[0010] Furthermore, the pressing assembly includes a support frame, a second hydraulic rod, and a pressing cone. The support frame is fixed to the upper end of the mounting plate, and the second hydraulic rod is installed on the lower side inside the support frame. The pressing cone is fixed to the telescopic arm of the second hydraulic rod. The pressing cone is in contact with the sides of all the inclined plates. The input end of the second hydraulic rod is electrically connected to the output end of an external PLC controller. The pressing assembly is used to press all the inclined plates.
[0011] Furthermore, a connecting column is fixed to the upper side of the support frame, and an mounting plate is fixed to the upper end of the connecting column. The connecting column and the mounting plate are used to connect the support frame to external painting hoisting equipment.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This adaptive gripping device for painting hoisting equipment has the following advantages:
[0013] By setting up the gripping assembly, when gripping workpieces of different sizes, the pressing assembly can be activated to squeeze all the inclined plates. After squeezing, all the squeezing plates move to squeeze all the connecting plates. After squeezing, the mounting ring rotates, which drives the gripping rods to move. The rotation of all the gripping rods allows for the gripping of workpieces of different sizes. During the gripping process, all pressure sensors will detect the gripping force. When the force reaches a suitable value, the pressing assembly can be turned off, thus avoiding damage to the workpiece during gripping. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the front structure of this utility model;
[0015] Figure 2 This is an enlarged view of section A of this utility model;
[0016] Figure 3 This is a schematic diagram of the reset component structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the gripping component structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the pressing component structure of this utility model.
[0019] In the diagram: 1. Mounting plate, 2. Extrusion assembly, 21. Mounting frame, 22. Slide bar, 23. Extrusion plate, 24. Inclined plate, 3. Reset assembly, 31. Fixing bracket, 32. Slide bar, 33. Spring, 4. Actuating assembly, 41. Mounting ring, 42. Rotating shaft, 43. Torsion spring, 44. Connecting plate, 5. Gripping assembly, 51. First hydraulic rod, 52. Gripping rod, 53. Pressure sensor, 6. Pressing assembly, 61. Support frame, 62. Second hydraulic rod, 63. Extrusion cone, 7. Connecting column, 8. Mounting plate. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-5 This embodiment provides a technical solution: an adaptive gripping device for painting hoisting equipment, including a mounting plate 1 and an extrusion assembly 2;
[0022] Mounting plate 1: A toggle assembly 4 is installed on the side, a gripping assembly 5 is installed at the lower end of the toggle assembly 4, and a pressing assembly 6 is installed at the upper end of the mounting plate 1. The pressing assembly 6 includes a support frame 61, a second hydraulic rod 62, and a pressing cone 63. The support frame 61 is fixed at the upper end of the mounting plate 1, and the second hydraulic rod 62 is installed on the lower side inside the support frame 61. The pressing cone 63 is fixed on the telescopic arm of the second hydraulic rod 62. The pressing cone 63 is in contact with the sides of all the inclined plates 24. The input end of the second hydraulic rod 62 is electrically connected to the output end of an external PLC controller. All the inclined plates 24 are pressed by setting the pressing assembly 6.
[0023] The extrusion assembly 2 includes a mounting frame 21, a slide bar 22, an extrusion plate 23, and an inclined plate 24. The mounting frame 21 is fixed to the upper end of the mounting plate 1. Evenly distributed openings are provided on the side of the mounting frame 21. A slide bar 22 is slidably connected inside each opening. An inclined plate 24 is fixed to the side of the slide bar 22 inside the mounting frame 21. An extrusion plate 23 is fixed to the other side of the slide bar 22. The actuating assembly 4 is connected to all the extrusion plates 23. Evenly distributed reset assemblies 3 are mounted on the side of the mounting frame 21. The reset assemblies 3 are connected to the inclined plate 24. Component 3 includes a fixing bracket 31, a sliding rod 32, and a spring 33. The fixing brackets 31 are evenly distributed on the side of the mounting frame 21. Sliding holes are provided on the side of the fixing brackets 31, and sliding rods 32 are slidably connected inside the sliding holes. The sliding rods 32 are fixed to the side of the inclined plate 24. A spring 33 is sleeved on the circumferential surface of the sliding rod 32. One end of the spring 33 is fixed to the side of the inclined plate 24, and the other end is fixed to the side of the fixing brackets 31. The actuating assembly 4 includes a mounting ring 41, a rotating shaft 42, a torsion spring 43, and a connecting plate 44. The circumferential surface of the mounting plate 1... The upper part has evenly distributed grooves. A rotating shaft 42 is rotatably connected inside the grooves. An mounting ring 41 is fixed on the circumferential surface of the rotating shaft 42. Two corresponding torsion springs 43 are sleeved on the circumferential surface of the rotating shaft 42. One adjacent end of the two torsion springs 43 is fixed to the two ends of the mounting ring 41, and the other ends of the two torsion springs 43 are fixed inside the grooves. A connecting plate 44 is fixed to the upper end of the circumferential surface of the mounting ring 41. The connecting plate 44 is in contact with the extrusion plate 23. The gripping assembly 5 includes a first hydraulic rod 51, a gripping rod 52, and a pressure sensor 53. The mounting ring 41 has evenly distributed grooves. A rotating shaft 42 is rotatably connected inside the grooves. An mounting ring 41 is fixed on the circumferential surface of the mounting ring 41. Two corresponding torsion springs 43 are sleeved on the circumferential surface of the rotating shaft 42. One adjacent end of the two torsion springs 43 is fixed to the two ends of the mounting ring 41, and the other end of the two torsion springs 43 is fixed inside the grooves. A connecting plate 44 is fixed to the upper end of the circumferential surface of the mounting ring 41. The connecting plate 44 is in contact with the extrusion plate 23. The gripping assembly 5 includes a first hydraulic rod 51, a gripping rod 52, and a pressure sensor 53. A first hydraulic rod 51 is installed at the lower end of the circumferential surface. A gripping rod 52 is fixed on the telescopic arm of the first hydraulic rod 51. A pressure sensor 53 is installed on the side of the gripping rod 52. The pressure sensor 53 is bidirectionally electrically connected to an external PLC controller. The input end of the first hydraulic rod 51 is electrically connected to the output end of the external PLC controller. The workpiece is gripped by the gripping component 5. The gripping component 5 is rotated by the toggle component 4. The inclined plate 24 is reset by the reset component 3. All the connecting plates 44 are squeezed by the extrusion component 2.
[0024] Among them: a connecting column 7 is fixed on the upper side of the support frame 61, and an mounting plate 8 is fixed on the upper end of the connecting column 7. The connecting column 7 and the mounting plate 8 are used to connect to the external painting hoisting equipment.
[0025] The working principle of the adaptive gripping device for painting hoisting equipment provided by this utility model is as follows: First, it is connected to the painting hoisting equipment through the mounting plate 8. After connection, when gripping workpieces of different sizes, the workpiece to be gripped can be placed between all the gripping rods 52. Then, the second hydraulic cylinder 62 is activated to make the extrusion cone 63 press down to press all the inclined plates 24. After pressing, all the inclined plates 24 move. The movement of all the inclined plates 24 drives all the slide bars 22 to move. The movement of all the slide bars 22 drives all the extrusion plates 23 to move to press all the connecting plates 44. After pressing, the mounting ring 41 rotates. The rotation of the mounting ring 41 drives the gripping rods 52 to move. The rotation of all the gripping rods 52 can grip workpieces of different sizes. During the gripping process, all the pressure sensors 53 will detect the gripping force. When the force reaches a suitable value, the pressing component can be closed. In this way, damage to the workpiece can be avoided during gripping.
[0026] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The first hydraulic rod 51, the second hydraulic rod 62, and the pressure sensor 53 can be freely configured according to the actual application scenario. The external PLC controller controls the operation of the first hydraulic rod 51 and the second hydraulic rod 62 using methods commonly used in the prior art.
[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An adaptive gripping device for painting hoisting equipment, characterized in that: Includes mounting plate (1) and extrusion assembly (2); Mounting disc (1): A toggle component (4) is mounted on the side, a gripping component (5) is mounted on the lower end of the toggle component (4), and a pressing component (6) is mounted on the upper end of the mounting disc (1). The extrusion assembly (2) includes a mounting frame (21), a slide bar (22), an extrusion plate (23), and an inclined plate (24). The upper end of the mounting plate (1) is fixed with the mounting frame (21). The mounting frame (21) has evenly distributed openings on its side. The slide bar (22) is slidably connected inside the opening. The inclined plate (24) is fixed on the side of the slide bar (22) inside the mounting frame (21). The extrusion plate (23) is fixed on the other side of the slide bar (22). The actuation assembly (4) is connected to all the extrusion plates (23). The side of the mounting frame (21) is equipped with evenly distributed reset assemblies (3). The reset assemblies (3) are connected to the inclined plate (24).
2. The adaptive gripping device for painting hoisting equipment according to claim 1, characterized in that: The reset assembly (3) includes a fixing frame (31), a sliding rod (32) and a spring (33). The mounting frame (21) has evenly distributed fixing frames (31) fixed on its side. The fixing frame (31) has a sliding hole on its side. The sliding rod (32) is slidably connected inside the sliding hole. The sliding rod (32) is fixed on the side of the inclined plate (24). The spring (33) is sleeved on the circumferential surface of the sliding rod (32). One end of the spring (33) is fixed on the side of the inclined plate (24), and the other end of the spring (33) is fixed on the side of the fixing frame (31).
3. The adaptive gripping device for painting hoisting equipment according to claim 1, characterized in that: The actuating assembly (4) includes a mounting ring (41), a rotating shaft (42), a torsion spring (43), and a connecting plate (44). The mounting plate (1) has evenly distributed grooves on its circumferential surface. The rotating shaft (42) is rotatably connected inside the grooves. The mounting ring (41) is fixed on the circumferential surface of the rotating shaft (42). Two corresponding torsion springs (43) are sleeved on the circumferential surface of the rotating shaft (42). The adjacent ends of the two torsion springs (43) are respectively fixed to the two ends of the mounting ring (41), and the other ends of the two torsion springs (43) are fixed inside the grooves. The connecting plate (44) is fixed at the upper end of the circumferential surface of the mounting ring (41), and the connecting plate (44) is in contact with the pressing plate (23).
4. The adaptive gripping device for painting hoisting equipment according to claim 3, characterized in that: The gripping assembly (5) includes a first hydraulic rod (51), a gripping rod (52), and a pressure sensor (53). The first hydraulic rod (51) is installed at the lower end of the circumferential surface of the mounting ring (41). The gripping rod (52) is fixed on the telescopic arm of the first hydraulic rod (51). The pressure sensor (53) is installed on the side of the gripping rod (52). The pressure sensor (53) is bidirectionally electrically connected to an external PLC controller. The input end of the first hydraulic rod (51) is electrically connected to the output end of the external PLC controller.
5. The adaptive gripping device for painting hoisting equipment according to claim 1, characterized in that: The pressing assembly (6) includes a support frame (61), a second hydraulic rod (62), and a pressing cone (63). The upper end of the mounting plate (1) is fixed with the support frame (61). The lower side inside the support frame (61) is installed with the second hydraulic rod (62). The pressing cone (63) is fixed on the telescopic arm of the second hydraulic rod (62). The pressing cone (63) is in contact with the sides of all the inclined plates (24). The input end of the second hydraulic rod (62) is electrically connected to the output end of an external PLC controller.
6. The adaptive gripping device for painting hoisting equipment according to claim 5, characterized in that: A connecting column (7) is fixed on the upper side of the support frame (61), and an mounting plate (8) is fixed on the upper end of the connecting column (7).