Adjustable mechanical clamping jaw mechanism
By adjusting the position of the gripper seat and replacing the grippers in the mechanical gripper mechanism, the problem of insufficient applicability of existing mechanical grippers is solved, enabling flexible adjustment of the grippers and rapid adaptation to workpieces of different shapes, thereby improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAODA PNEUMATIC TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-17
AI Technical Summary
Existing mechanical grippers cannot adjust the gripping stroke and position according to actual usage, resulting in low applicability and the need to frequently change grippers to adapt to workpieces of different shapes, which affects production progress.
Design an adjustable mechanical gripper mechanism. The position of the gripper seat can be adjusted by adjusting the slide bar and screw, and the gripper can be replaced to adapt to workpieces of different shapes. The gripper seat is equipped with a scale for precise adjustment.
It improves the applicability of mechanical grippers, reduces the frequency of gripper replacement, simplifies operation, and reduces the impact on production schedule.
Smart Images

Figure CN224129819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical gripper technology, specifically to an adjustable mechanical gripper mechanism. Background Technology
[0002] A mechanical gripper is a mechanical device used to grasp, hold, or move objects. It is typically used as an end effector in robots or automated equipment and is widely applied in industries such as manufacturing, logistics, healthcare, and services. Grasping objects involves using clamping or suction forces to hold the target object in place. Moving objects from one location to another is another function. In conjunction with sensors or vision systems, it enables precision tasks such as assembly and sorting.
[0003] For example, Chinese Patent Publication No. CN206029935U provides a robotic arm loading / unloading terminal gripper assembly, belonging to the field of mechanical technology. It solves the problem of easy damage to pneumatic grippers in existing gripper assemblies. This robotic arm loading / unloading terminal gripper assembly includes a rotary cylinder, a gripper connecting block fixedly connected to the rotary cylinder's rotation shaft, and a first gripper and a second gripper fixedly connected to the gripper connecting block, arranged perpendicularly to each other. The axes of the first gripper and the second gripper are respectively eccentric to the axis of the rotary cylinder's rotation shaft, and the first and second grippers are located on opposite sides of the rotary cylinder's rotation shaft. This robotic arm loading / unloading terminal gripper assembly has advantages such as being less prone to damage during use.
[0004] The existing mechanical grippers, as described in the aforementioned patent, cannot adjust their gripping stroke and position according to actual usage conditions, resulting in low applicability. Furthermore, different mechanical grippers need to be replaced for workpieces of different shapes, leading to frequent changes in the mechanical grippers during production and requiring readjustment and adaptation of their parameters, which significantly impacts production progress.
[0005] Therefore, the applicant has made beneficial designs and found a way to solve the above problems. The technical solution to be introduced below is generated in this context. Utility Model Content
[0006] The present invention provides an adjustable mechanical gripper mechanism to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An adjustable mechanical gripper mechanism includes a three-jaw cylinder and several adjustable gripper mechanisms mounted on the three-jaw cylinder. The three-jaw cylinder has several gripper seats evenly distributed along its center. The gripper mechanisms are respectively mounted on the gripper seats. Each gripper mechanism includes a parallel sliding rod and a screw rod. Gripper seats are slidably mounted on the sliding rod and the screw rod. The bottom of each gripper seat has an installation groove. A detachable and replaceable gripper is provided in the installation groove. The surface of the sliding rod has a scale.
[0009] Preferably, each end surface of the clamp has two mounting holes, and the slide rod and screw are respectively installed in the two mounting holes.
[0010] Preferably, locking nuts are screwed onto both sides of the screw located on the jaw seat.
[0011] Preferably, the gripper includes gripper one and gripper two, each of gripper one and gripper two including a clamping part and a mounting part, the mounting part being embedded in a mounting groove and fixed by screws.
[0012] Beneficial effects
[0013] The adjustable mechanical gripper mechanism provided in this embodiment of the present invention has at least one of the following technical effects:
[0014] This utility model, through the above-mentioned technical solution, allows adjustment of the gripper position by adjusting the position of the gripper seat on the slide rod and screw rod, thereby adjusting the gripping stroke and position of the mechanical gripper, improving the applicability of the mechanical gripper. Furthermore, by changing the gripper, it is possible to adjust it according to the shape of the workpiece, further improving the applicability of the mechanical gripper. There is no need to change to a corresponding model of mechanical gripper, making the operation more convenient and faster, and minimizing the impact on production progress. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 A schematic diagram showing the replacement of the clamping mechanism of this utility model with a clamping head structure;
[0017] Figure 3 A schematic diagram showing the replacement of the clamping mechanism of this utility model with a second clamping structure;
[0018] Figure 4 This is a schematic diagram of the clamp mounting structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the mounting structure of the clamp two in this utility model.
[0020] The correspondence between the labels and component names in the attached figures is as follows:
[0021] 1. Three-jaw cylinder; 2. Gripper mechanism; 3. Gripper seat; 4. Slide rod; 5. Screw; 6. Gripper seat; 7. Mounting groove; 8. Gripper; 9. Scale; 10. Locking nut; 11. Gripper one; 12. Gripper two; 13. Clamping part; 14. Mounting part. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., 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, and 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. Therefore, they should not be construed as limitations on this utility model.
[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments.
[0026] like Figure 1-5 The diagram shown is a structural schematic of an adjustable mechanical gripper mechanism according to a preferred embodiment of the present invention.
[0027] This embodiment includes a three-jaw cylinder 1 and several adjustable gripper mechanisms 2 mounted on the three-jaw cylinder 1. Several gripper seats 3 are evenly distributed along the center of the three-jaw cylinder 1, and the gripper mechanisms 2 are respectively mounted on the gripper seats 3. Each gripper mechanism 2 includes a parallel sliding rod 4 and a screw 5. A gripper seat 6 is slidably mounted on the sliding rod 4 and screw 5. A mounting groove 7 is provided at the bottom of the gripper seat 6, and a detachable and replaceable gripper 8 is provided in the mounting groove 7. A scale 9 is provided on the surface of the sliding rod 4, allowing for precise observation of the specific position and distance of the gripper seat 6 for accurate adjustment. By adjusting the position of the gripper seat 6 on the sliding rod 4 and screw 5, the position of the gripper 8 can be adjusted, thereby adjusting the clamping stroke and position of the mechanical gripper, improving its applicability. Furthermore, by replacing the gripper 8, adjustments can be made according to the shape of the workpiece, further improving the applicability of the mechanical gripper. There is no need to replace the corresponding model of mechanical gripper, making operation more convenient and faster, and minimizing the impact on production progress.
[0028] In this embodiment, two mounting holes are provided on one end surface of the clamping base 3. The mounting holes are threaded holes. The slide rod 4 and the screw rod 5 are respectively screwed into the two mounting holes. This structure realizes the installation connection between the gripper mechanism 2 and the three-jaw cylinder 1.
[0029] In this embodiment, locking nuts 10 are screwed onto both sides of the screw 5 located on the gripper seat 6. The locking nuts 10 press the two sides of the gripper seat 6 together, thereby fixing the gripper seat 6.
[0030] In this embodiment, the gripper 8 includes gripper 11 and gripper 2 12. Both gripper 11 and gripper 2 12 include a clamping part 13 and a mounting part 14. The mounting part 14 is embedded in the mounting groove 7 and fixed by screws. Gripper 11 or gripper 2 12 can be disassembled and replaced by removing the screws.
[0031] The adjustable mechanical gripper mechanism of this utility model has common mechanical methods in terms of installation, connection or setting. It can be implemented as long as it can achieve its beneficial effect.
[0032] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.
[0033] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.
Claims
1. An adjustable mechanical jaw mechanism, characterized by: The device includes a three-jaw cylinder (1) and several adjustable gripper mechanisms (2) mounted on the three-jaw cylinder (1). The three-jaw cylinder (1) is provided with several gripper seats (3) evenly distributed along its center. The gripper mechanisms (2) are respectively mounted on the gripper seats (3). Each gripper mechanism (2) includes a parallel sliding rod (4) and a screw (5). A gripper seat (6) is slidably mounted on the sliding rod (4) and the screw (5). The bottom of the gripper seat (6) is provided with an installation groove (7). A detachable and replaceable gripper (8) is provided in the installation groove (7). The surface of the sliding rod (4) is provided with a scale (9).
2. An adjustable mechanical jaw mechanism according to claim 1, wherein: Two mounting holes are provided on one end surface of the clamp (3), and the slide rod (4) and screw (5) are respectively installed in the two mounting holes.
3. An adjustable mechanical jaw mechanism according to claim 1, wherein: The screw (5) is screwed with locking nuts (10) on both sides of the jaw seat (6).
4. An adjustable mechanical jaw mechanism according to claim 1, wherein: The gripper (8) includes gripper one (11) and gripper two (12). Both gripper one (11) and gripper two (12) include a clamping part (13) and a mounting part (14). The mounting part (14) is embedded in the mounting groove (7) and fixed by screws.
Citation Information
Patent Citations
Unloading terminal hand claw group on manipulator
CN206029935U