Automatic replacement structure for air cylinder quick-release fingers
By designing an automatic finger replacement structure with quick-release cylinder, components such as slots, limit beads, and magnetic blocks are used to achieve rapid engagement and separation of the finger and the gripper, solving the problem of low efficiency in traditional manual replacement and improving the replacement efficiency and convenience of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2026-04-07
AI Technical Summary
The frequent and cumbersome replacement of the fingers in traditional gripper cylinders leads to low equipment replacement efficiency and affects production efficiency.
An automatic finger replacement structure with a cylinder quick-release mechanism was designed. It utilizes components such as a slot, limit bead, magnetic block, and hydraulic rod to achieve rapid engagement and disengagement of the finger from the pneumatic gripper, replacing manual labor with mechanical force for replacement.
It improves the efficiency of changing fingers and grippers, avoids finger detachment, and enhances the convenience of changing and the efficiency of equipment use.
Smart Images

Figure CN224089043U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical gripper replacement technology, and in particular relates to an automatic replacement structure for quick-release fingers of cylinders. Background Technology
[0002] In the automation industry, gripper cylinders are very common standard parts because they have a simple structure and only require an air source to open and close the grippers. They are reliable, stable, and come in a variety of types to meet various needs.
[0003] However, most grippers are standard parts, while some materials have different shapes. Therefore, we need to design different gripper fingers for different materials. Due to the variety of production lines and the different shapes of materials, the production line needs to frequently change products and corresponding cylinder fingers during production. The traditional method of change is to manually change them. If the production line is long and the change steps are cumbersome, it will lead to low efficiency when changing equipment, thus affecting the working efficiency of the equipment. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model provides an automatic replacement structure for quick-release fingers of cylinders, which solves the problem that the existing equipment has low efficiency during replacement, thus affecting the use of the equipment.
[0005] This utility model is implemented as follows: an automatic replacement structure for quick-release fingers using a cylinder, applied to both fingers and grippers, includes a support plate for holding the gripper, and further includes:
[0006] A locking assembly is disposed within the finger and the gripper for locking the finger and the gripper. It includes two sets of locking slots on the underside of the gripper. A limiting bead is movably disposed within the finger, and the locking slot is located within the limiting bead when the finger and the gripper are locked.
[0007] An auxiliary component, set on the support plate, is used to limit the finger when the finger and the gripper are engaged and disengaged, including an auxiliary gripper that is movably set on the support plate;
[0008] The finger placement platform is set on the support plate at equal angles, and when the auxiliary gripper moves upward, it drives multiple placement platforms to rotate.
[0009] As a preferred embodiment of this invention, the snap-fit assembly further includes a slide plate that is slidably disposed on one side of the finger, the limiting bead being rotatably disposed on the slide plate, and four springs for resetting the slide plate being fixedly disposed between the slide plate and the finger.
[0010] In a preferred embodiment of this invention, the placement platform and the finger are respectively provided with a first magnetic block and a second magnetic block for driving the skateboard to slide, and the first magnetic block and the second magnetic block are magnetically connected.
[0011] In a preferred embodiment of this invention, a third magnetic block and a fourth magnetic block are provided between the placement platform and the finger for fixing the finger and the placement platform relative to each other, and the third magnetic block and the fourth magnetic block are in magnetic contact.
[0012] As a preferred embodiment of this utility model, the auxiliary component further includes a hydraulic rod installed between the support plate and the auxiliary gripper. A rack is fixedly provided at the bottom of the auxiliary gripper. A plurality of the placement platforms are rotatably mounted on the support plate, and a one-way wheel that meshes with the rack is installed on the placement platform. When the auxiliary gripper moves upward, the rack drives the one-way wheel to rotate.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention utilizes the combination of a slot and a limiting bead in the device to quickly engage the finger and the pneumatic gripper during operation. Combined with the first and second magnetic blocks and auxiliary grippers, the device effectively limits the finger's movement, preventing the finger from failing to disengage from the pneumatic gripper during replacement. This further ensures the device's replacement efficiency, allowing mechanical force to replace manual labor and significantly improving the ease of replacement. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure from the left side of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure from the right side view of this utility model;
[0017] Figure 3 This is a partial front view structural diagram of the present invention;
[0018] Figure 4 This is a partial lower view structural diagram of the present invention;
[0019] Figure 5 This is a schematic diagram of the internal structure of this utility model from a partial left-side view.
[0020] In the picture:
[0021] 1. Support plate; 2. Finger; 3. Pneumatic gripper; 4. Slot; 5. Limiting bead; 6. Slide plate; 7. Spring; 8. Placement platform; 9. First magnetic block; 10. Second magnetic block; 11. Third magnetic block; 12. Fourth magnetic block; 13. Hydraulic rod; 14. Rack; 15. One-way wheel; 16. Auxiliary gripper. Detailed Implementation
[0022] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0023] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0024] like Figures 1 to 5 As shown, this utility model embodiment provides an automatic replacement structure for quick-release fingers using a cylinder, applied to fingers 2 and grippers 3, including a support plate 1 for placing the grippers 3, and further including:
[0025] The locking assembly is disposed in the finger 2 and the pneumatic gripper 3 for locking the finger 2 and the pneumatic gripper 3. It includes two sets of locking slots 4 opened on the lower side of the pneumatic gripper 3. A limiting bead 5 is movably disposed in the finger 2, and the locking slot 4 is located in the limiting bead 5 when the finger 2 and the pneumatic gripper 3 are locked.
[0026] An auxiliary component, set on the support plate 1, is used to limit the finger 2 when the finger 2 and the pneumatic gripper 3 are engaged and disengaged, including an auxiliary gripper 16 movably set on the support plate 1;
[0027] The placement platform 8, which is rotatably mounted on the support plate 1 at equal angles, is used for placing the finger 2. When the auxiliary gripper 16 moves upward, it drives the multiple placement platforms 8 to rotate.
[0028] As a preferred embodiment of this utility model, the snap-fit assembly further includes a slide plate 6 slidably disposed on one side of the finger 2, a limiting bead 5 rotatably disposed on the slide plate 6, and four springs 7 fixed between the slide plate 6 and the finger 2 for resetting the slide plate 6, which drive the limiting bead 5 to move, thereby reducing the friction between the limiting bead 5 and the slide plate 6, making it more convenient to replace.
[0029] As a preferred embodiment of this utility model, the placement platform 8 and the finger 2 are respectively provided with a first magnetic block 9 and a second magnetic block 10 for driving the slide plate 6 to slide, and the first magnetic block 9 and the second magnetic block 10 are magnetically connected, further assisting the limiting bead 5 and the slot 4 to move away from each other, making it more convenient and faster to separate them.
[0030] As a preferred embodiment of this utility model, a third magnetic block 11 and a fourth magnetic block 12 are provided between the placement platform 8 and the finger 2 for fixing the finger 2 and the placement platform 8 to each other. The third magnetic block 11 and the fourth magnetic block 12 are in magnetic contact to ensure the stability between the finger 2 and the placement platform 8 and to prevent the finger 2 from separating from the placement platform 8 when the placement platform 8 rotates.
[0031] As a preferred embodiment of this utility model, the auxiliary component further includes a hydraulic rod 13 installed between the support plate 1 and the auxiliary gripper 16. A rack 14 is fixedly provided at the bottom of the auxiliary gripper 16. Multiple placement platforms 8 are rotatably arranged on the support plate 1, and a one-way wheel 15 that meshes with the rack 14 is installed on the placement platform 8. When the auxiliary gripper 16 moves upward, the rack 14 drives the one-way wheel 15 to rotate, which facilitates the movement of the auxiliary gripper 16, thereby changing the position of the placement platform 8 and thus realizing the replacement of different fingers 2.
[0032] The working principle of this utility model:
[0033] refer to Figure 1 Multiple fingers 2 are placed in multiple placement platforms 8, and each finger 2 has a different shape, making it more convenient to replace the fingers 2.
[0034] During disassembly: Lower the pneumatic gripper 3 so that the finger 2 is positioned in the empty placement platform 8, as per reference. Figure 3 At this time, the first magnetic block 9 and the second magnetic block 10 are parallel, and both are kept energized, causing them to magnetically attract each other. When the first magnetic block 9 and the second magnetic block 10 are magnetically attracted... Figure 5 When the second magnetic block 10 is attracted, it will move to the left. At the same time, the slide plate 6 will move the limiting bead 5 away from the slot 4, and the spring 7 will be compressed. When the limiting bead 5 and the slot 4 are far apart, the auxiliary gripper 16 will clamp the side of the finger 2 to further fix the finger 2. Then, the air gripper 3 will move up to separate the finger 2 from the air gripper 3. After the finger 2 is separated from the air gripper 3, the third magnetic block 11 and the fourth magnetic block 12 will magnetically attract each other to keep the removed finger 2 fixed to the placement platform 8, so as to prevent the finger 2 from falling when adjusting the placement platform 8. After disassembly, the air gripper 3 and the new finger 2 will be installed.
[0035] During installation: Refer to Figure 2The hydraulic rod 13 at the bottom of the auxiliary gripper 16 extends and retracts. When the hydraulic rod 13 extends and retracts, the one-way wheel 15 meshes with the rack 14. So when the rack 14 moves up, the one-way wheel 15 drives the placement platform 8 to rotate. When the rack 14 moves down, the one-way wheel 15 does not drive the placement platform 8 to rotate, thereby changing the position of the placement platform 8. When the required placement platform 8 moves to the lower side of the pneumatic gripper 3, the extension and retraction of the hydraulic rod 13 stops. Then, the magnetic attraction of the first magnetic block 9 and the second magnetic block 10 is opened again, and the magnetic attraction of the third magnetic block 11 and the fourth magnetic block 12 is disconnected. Then, the pneumatic gripper 3 is inserted into the finger 2. Then, the magnetic attraction of the first magnetic block 9 and the second magnetic block 10 is disconnected again, so that the spring 7 is reset. Then, the slide plate 6 pushes the limit bead 5 into the slot 4, thereby completing the replacement of the finger 2. This process can be repeated to achieve the quick installation and replacement of the finger 2.
[0036] This invention, through the cooperation of the slot 4 and the limiting bead 5 in the device, enables the device to quickly engage the finger 2 and the pneumatic gripper 3 during operation. In conjunction with the first magnetic block 9, the second magnetic block 10, and the auxiliary gripper 16 in the device, the finger 2 can be effectively limited, avoiding the situation where the finger 2 cannot detach from the pneumatic gripper 3 during the replacement process. This further ensures the replacement efficiency of the device, allowing mechanical force to replace manual labor and further improving the convenience of its replacement.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic replacement structure for quick-release fingers of a cylinder, applied to a finger (2) and a gripper (3), comprising a support plate (1) for placing the gripper (3), characterized in that: Also includes: A snap-fit assembly is provided inside the finger (2) and the gripper (3) for snapping the finger (2) and the gripper (3). It includes a snap-fit groove (4) opened on the lower side of the gripper (3). Two sets of limiting beads (5) are movably provided inside the finger (2), and the snap-fit groove (4) is located inside the limiting beads (5) when the finger (2) and the gripper (3) snap-fit. An auxiliary component, set on the support plate (1), is used to limit the finger (2) when the finger (2) and the pneumatic gripper (3) are engaged and disengaged, including an auxiliary gripper (16) movably set on the support plate (1); An equal-angle rotating platform (8) is set on the support plate (1) for placing fingers (2), and when the auxiliary gripper (16) moves upward, it drives multiple platforms (8) to rotate.
2. The automatic replacement structure for quick-release fingers in a cylinder as described in claim 1, characterized in that: The snap-fit assembly also includes a slide plate (6) that is slidably disposed on one side of the finger (2), the limiting bead (5) is rotatably disposed on the slide plate (6), and four springs (7) for resetting the slide plate (6) are fixedly disposed between the slide plate (6) and the finger (2).
3. The automatic replacement structure for quick-release fingers in a cylinder as described in claim 2, characterized in that: The placement platform (8) and the finger (2) are respectively provided with a first magnetic block (9) and a second magnetic block (10) for driving the slide plate (6) to slide, and the first magnetic block (9) and the second magnetic block (10) are magnetically connected.
4. The automatic replacement structure for quick-release fingers in a cylinder as described in claim 3, characterized in that: A third magnetic block (11) and a fourth magnetic block (12) are provided between the placement platform (8) and the finger (2) for fixing the finger (2) and the placement platform (8) relative to each other, and the third magnetic block (11) and the fourth magnetic block (12) are in magnetic contact.
5. The automatic replacement structure for quick-release fingers of a cylinder as described in claim 4, characterized in that: The auxiliary assembly also includes a hydraulic rod (13) installed between the support plate (1) and the auxiliary gripper (16). A rack (14) is fixedly provided at the bottom of the auxiliary gripper (16). A plurality of the placement platforms (8) are rotatably arranged on the support plate (1), and a one-way wheel (15) that meshes with the rack (14) is installed on the placement platform (8). When the auxiliary gripper (16) moves upward, the rack (14) drives the one-way wheel (15) to rotate.