A multi-specification adapting ring quick clamping mechanism

By using a motor-driven large and small gear meshing transmission and a cylinder lifting combined with a spring automatic reset structure, the expansion ring quick clamping mechanism solves the problems of low efficiency and poor adaptability of traditional clamping devices, and achieves efficient and stable clamping of workpieces of various specifications.

CN224373831UActive Publication Date: 2026-06-19HUNAN QICHENGHUALU AVIATION TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN QICHENGHUALU AVIATION TECH CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-19

Smart Images

  • Figure CN224373831U_ABST
    Figure CN224373831U_ABST
Patent Text Reader

Abstract

The utility model relates to clamping mechanism technical field, in general, relate to a kind of multi-specification adaptation's ring rapid clamping mechanism.The utility model provides such a kind of multi-specification adaptation's ring rapid clamping mechanism, including frame, portal frame, cylinder, connecting plate, mounting plate, mounting cover, motor and big gear etc., frame upper portion is equipped with portal frame, and the top middle part of portal frame is fixedly connected with cylinder, and the telescopic rod of cylinder passes through portal frame, and is connected with connecting plate, and connecting plate bottom is equipped with mounting plate, and mounting plate lower portion is equipped with mounting cover, and mounting plate inner top is fixedly connected with motor, and the output shaft of motor is connected with big gear.The utility model is driven big gear and a plurality of pinion by motor, and drive synchronous shaft rotation, to drive pinion two and rack meshing linkage, realize multi-point synchronous clamping, significantly improve the stability and reliability of clamping process.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of clamping mechanism technology, and in particular to a multi-specification adaptable quick clamping mechanism for expanding rings. Background Technology

[0002] In the fields of machining, automated assembly, and quality inspection, accurate positioning and reliable clamping of workpieces are key to ensuring machining accuracy, improving production efficiency, and ensuring the stability of equipment operation. This is especially true for ring-type workpieces, such as sealing rings, elastic retaining rings, and wave washers. These parts typically have a circular structure and possess a certain degree of elasticity and deformation capacity. They are widely used in industries such as automobile manufacturing, aerospace, and precision instruments, mainly to achieve functions such as sealing, connection, and buffering.

[0003] Currently, traditional clamping devices are mostly manually operated or only applicable to single-specification fixtures. They generally suffer from problems such as low clamping efficiency, poor adaptability, and uneven clamping force distribution, making it difficult to meet the clamping requirements of workpieces of different specifications and affecting machining accuracy and production efficiency. Although some automated fixtures have adopted pneumatic or electric drive methods, there are still certain limitations in achieving multi-point synchronous clamping, automatic clamping block reset, and universal adaptation to multiple specifications of workpieces.

[0004] Therefore, it is necessary to design a multi-specification adaptable quick clamping mechanism for expanding rings to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the problems of low efficiency, poor adaptability, and uneven clamping force of traditional clamping devices, which are mostly manual or single-structure, and are difficult to meet the clamping requirements of multi-specification workpieces, and the shortcomings of some automated fixtures that use pneumatic or electric drive, such as limited synchronous clamping, automatic reset and universal adaptability, this utility model provides a multi-specification adaptable expansion ring quick clamping mechanism.

[0006] The technical solution is as follows: A multi-specification adaptable quick clamping mechanism for expansion rings includes a frame, a gantry frame, a cylinder, a connecting plate, a mounting plate, a mounting cover, a motor, a large gear, a first small gear, a synchronous shaft, a second small gear, a mounting block, a rack, and a lever. A gantry frame is mounted on the upper part of the frame. A cylinder is fixedly connected to the top center of the gantry frame. The extension rod of the cylinder passes through the gantry frame and is connected to the connecting plate. A mounting plate is mounted at the bottom of the connecting plate. A mounting cover is mounted on the lower part of the mounting plate. A motor is fixedly connected to the top of the mounting plate. The output shaft of the motor is connected to the large gear. Multiple synchronous shafts are evenly distributed around the outer ring of the plate. Each synchronous shaft is rotatably connected to the mounting plate. A small gear is fixedly connected to the middle of each synchronous shaft. A large gear meshes with the small gear. A small gear is also fixedly connected to the lower part of each synchronous shaft. Multiple mounting blocks are evenly fixedly connected around the bottom outer ring of the mounting cover. The bottom end of each synchronous shaft passes through the corresponding mounting block in sequence and is rotatably connected to the mounting block. A rack is slidably connected to each mounting block. The rack meshes with the corresponding small gear. A lever is provided at the bottom of the inner end of each rack.

[0007] Optionally, it also includes guide rods, with guide rods slidably connected to both sides of the gantry, and the bottom ends of the two guide rods connected to the left and right sides of the connecting plate respectively.

[0008] Optionally, it also includes mounting bases, slide rods, springs, and clamping blocks. Mounting bases are provided on the left and right sides of the top of the frame. Slide rods are slidably connected to the two mounting bases respectively. Clamping blocks are fixedly connected to the inner ends of the two slide rods. The clamping blocks are slidably connected to the frame. Springs are sleeved on the slide rods between the two mounting bases and the corresponding clamping blocks. The two ends of the springs are respectively connected between the mounting base and the clamping block.

[0009] Optionally, rubber pads are provided on the inner ends of the two clamping blocks.

[0010] Optionally, it also includes lighting fixtures, which are mounted on the rear side of the top of the rack.

[0011] Optionally, the lever is made of high-strength alloy steel.

[0012] The beneficial effects are as follows: 1. This utility model uses a motor to drive a large gear to mesh with multiple small gears and drive the synchronous shaft to rotate, thereby driving the small gears to mesh with the rack and pinion, achieving multi-point synchronous clamping, which significantly improves the stability and reliability of the clamping process.

[0013] 2. This utility model uses a cylinder to drive the connecting plate to rise and fall, thereby driving the connecting plate and mounting plate to move as a whole, realizing rapid positioning and descent reset of the clamping action, effectively improving the response speed and operation efficiency of the clamping action.

[0014] 3. This utility model achieves stable clamping of expansion ring-shaped workpieces through the cooperation of the mounting base, slide bar and clamping block; through the spring automatic reset structure, it improves the clamping response speed and automation level, reduces manual intervention, and enhances the versatility and practicality of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a structural schematic diagram of the motor, large gear, and small gear of this utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the pinion, rack, and lever components of this utility model.

[0018] Figure 4 This is a structural schematic diagram of the components of this utility model, including the lever, rack, and mounting block.

[0019] Figure 5 This is a structural schematic diagram of the mounting base, slide bar, and spring components of this utility model.

[0020] The above-mentioned attached drawings include the following reference numerals: 1. Frame, 2. Gantry, 3. Cylinder, 4. Guide rod, 5. Connecting plate, 6. Mounting plate, 7. Mounting cover, 8. Motor, 9. Large gear, 10. Small gear one, 101. Synchronous shaft, 11. Small gear two, 12. Mounting block, 13. Rack, 14. Lever, 15. Mounting seat, 16. Slide rod, 17. Spring, 18. Clamping block, 19. Light fixture. Detailed Implementation

[0021] Example: A multi-specification adaptable quick clamping mechanism for expansion rings, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the system includes a frame 1, a gantry frame 2, a cylinder 3, guide rods 4, a connecting plate 5, a mounting plate 6, a mounting cover 7, a motor 8, a large gear 9, a first small gear 10, a synchronous shaft 101, a second small gear 11, a mounting block 12, a rack 13, and a lever 14. The gantry frame 2 is mounted on the upper part of the frame 1. A cylinder 3 is bolted to the top center of the gantry frame 2. The telescopic rod of the cylinder 3 passes through the gantry frame 2 and is connected to the connecting plate 5. Guide rods 4 are slidably connected to both sides of the gantry frame 2. The bottom ends of the two guide rods 4 are connected to the left and right sides of the connecting plate 5, respectively. A mounting plate 6 is mounted at the bottom of the connecting plate 5. A mounting cover 7 is mounted at the bottom of the mounting plate 6. A motor 8 is bolted to the top of the mounting plate 6. The output shaft of the motor 8 is connected to the large gear 9. Multiple synchronous shafts 101 are evenly distributed circumferentially on the outer ring of the mounting plate 6. Each synchronous shaft 101 is rotatably connected to the mounting plate 6. A small gear 10 is welded to the middle of each synchronous shaft 101. A large gear 9 meshes with the small gear 10. A small gear 2 11 is also welded to the lower part of each synchronous shaft 101. Multiple mounting blocks 12 are evenly installed circumferentially on the bottom outer ring of the mounting cover 7 by bolts. The bottom end of each synchronous shaft 101 passes through the corresponding mounting block 12 and is rotatably connected to the mounting block 12. A rack 13 is slidably connected to each mounting block 12. The rack 13 meshes with the corresponding small gear 2 11. A lever 14 is provided at the bottom of the inner end of each rack 13. The lever 14 is made of high-strength alloy steel.

[0022] like Figure 1 and Figure 5 As shown, it also includes a mounting base 15, a slide rod 16, a spring 17, a clamping block 18, and a lamp 19. Mounting bases 15 are provided on the left and right sides of the top of the frame 1. Slide rods 16 are slidably connected to the two mounting bases 15 respectively. The inner ends of the two slide rods 16 are connected to clamping blocks 18 by welding. The inner ends of the two clamping blocks 18 are provided with rubber pads. The clamping blocks 18 are slidably connected to the frame 1. Springs 17 are sleeved on the slide rods 16 between the two mounting bases 15 and the corresponding clamping blocks 18. The two ends of the springs are connected between the mounting base and the clamping block respectively. A lamp 19 is installed on the rear side of the top of the frame 1.

[0023] When using this multi-device setup, first, place the workpiece (such as a ring-shaped piece) to be clamped stably in the center between the two clamping blocks 18. At this time, the clamping blocks 18 open to the left and right, compressing the spring 17, facilitating workpiece placement. Rubber pads are provided on the inner side of the clamping blocks 18 to effectively prevent scratches or indentations on the workpiece surface, ensuring stable placement. Then, start the cylinder 3; its telescopic rod drives the connecting plate 5 and mounting plate 6 downwards as a whole. The guide rod 4 acts as a guide, ensuring smooth and unbiased movement and preventing wobbling from affecting subsequent clamping accuracy. Once the connecting plate 5 and mounting plate 6 have descended into position, start the motor 8. The output shaft of the motor 8 drives the large gear 9 to rotate. The large gear 9 meshes with multiple evenly distributed small gears 10, causing all small gears 10 to rotate synchronously. Simultaneously, the synchronous shaft 101 rotates along with the small gears 10. The second pinion 11 drives the rack 13 to slide inward along the mounting block 12. The lever 14 moves synchronously with the rack 13 and moves towards the center to achieve uniform clamping of the workpiece. After the workpiece is clamped, subsequent processing or inspection operations can be performed. During the operation, the lamp 19 can provide illumination to ensure clear visibility of the operation. After processing is completed, the power to the motor 8 and cylinder 3 is turned off. The motor 8 reverses to make the large gear 9 rotate in the opposite direction, which in turn drives the first pinion 10, the synchronous shaft 101 and the second pinion 11 to rotate in the opposite direction. Finally, the rack 13 is pulled outward, and the lever 14 is removed from the clamping position. Then, the cylinder 3 drives the connecting plate 5 and the mounting plate 6 to rise as a whole and return to the initial position. Finally, the processed workpiece is taken out. At this time, the clamping block 18 moves inward under the elastic force of the spring 17 and returns to the initial open state, completing the automatic reset. The above steps can be repeated to perform the next operation.

Claims

1. A multi-specification adaptable quick clamping mechanism for expansion rings, characterized in that: The machine includes a frame (1), a gantry (2), a cylinder (3), a connecting plate (5), a mounting plate (6), a mounting cover (7), a motor (8), a large gear (9), a small gear one (10), a synchronous shaft (101), a small gear two (11), a mounting block (12), a rack (13), and a lever (14). The gantry (2) is mounted on the upper part of the frame (1). The cylinder (3) is fixedly connected to the top center of the gantry (2). The telescopic rod of the cylinder (3) passes through the gantry (2) and is connected to the connecting plate (5). The mounting plate (6) is mounted on the bottom of the connecting plate (5). The mounting cover (7) is mounted on the lower part of the mounting plate (6). The motor (8) is fixedly connected to the top of the mounting plate (6). The output shaft of the motor (8) is connected to the large gear (9). The outer ring of the mounting plate (6) is along the... Multiple synchronous shafts (101) are evenly distributed circumferentially. Each synchronous shaft (101) is rotatably connected to the mounting plate (6). A small gear (10) is fixedly connected to the middle of each synchronous shaft (101). A large gear (9) meshes with the small gear (10). A small gear (2) is also fixedly connected to the lower part of each synchronous shaft (101). Multiple mounting blocks (12) are evenly fixedly connected circumferentially to the bottom outer ring of the mounting cover (7). The bottom end of each synchronous shaft (101) passes through the corresponding mounting block (12) in sequence and is rotatably connected to the mounting block (12). A rack (13) is slidably connected to each mounting block (12). The rack (13) meshes with the corresponding small gear (2) (11). A lever (14) is provided at the bottom of the inner end of each rack (13).

2. The multi-specification adaptable quick clamping mechanism for expansion rings according to claim 1, characterized in that: It also includes guide rods (4), and guide rods (4) are slidably connected to both sides of the gantry (2). The bottom ends of the two guide rods (4) are respectively connected to the left and right sides of the connecting plate (5).

3. A multi-specification adaptable quick clamping mechanism for expansion rings according to claim 2, characterized in that: It also includes mounting base (15), slide rod (16), spring (17) and clamp (18). Mounting base (15) is provided on the top left and right sides of the frame (1). Slide rod (16) is slidably connected to the two mounting bases (15). Clamp (18) is fixedly connected to the inner end of the two slide rods (16). The clamp (18) is slidably connected to the frame (1). Spring (17) is sleeved on the slide rod (16) between the two mounting bases (15) and the corresponding clamp (18). The two ends of the spring (17) are respectively connected between the mounting base (15) and the clamp (18).

4. A multi-specification adaptable quick clamping mechanism for expansion rings according to claim 3, characterized in that: Rubber pads are provided on the inner ends of the two clamping blocks (18).

5. A multi-specification adaptable quick clamping mechanism for expansion rings according to claim 4, characterized in that: It also includes a lamp (19), which is installed on the rear side of the top of the frame (1).

6. A multi-specification adaptable quick clamping mechanism for expansion rings according to claim 5, characterized in that: The lever (14) is made of high-strength alloy steel.