A kind of injection product anti-falling pneumatic jaw assembly
By designing a gripper assembly structure consisting of a sliding column, a fixed column, a spring, and a lubrication component, the problem of the inability to quickly disassemble the gripper in the existing technology is solved, enabling rapid disassembly and installation of the gripper, improving production efficiency and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN DUOLEXIONG ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-08-17
- Publication Date
- 2026-07-24
AI Technical Summary
The existing pneumatic gripper assembly for preventing slippage in injection molded products cannot be quickly disassembled, resulting in excessively long maintenance and replacement times for the grippers, which affects production efficiency.
A gripper assembly structure including a sliding column, a fixed column, a spring, a compression ring, and a lubrication component was designed. The gripper can be quickly disassembled and installed through the cooperation of the sliding block and the slot, and the lubrication component reduces friction and extends the equipment life.
It enables quick disassembly and installation of fixtures, reduces maintenance time, improves production efficiency, and extends the service life and stability of equipment.
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Figure CN224545225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a pneumatic gripper assembly for preventing injection molded products from falling off. Background Technology
[0002] Injection molded products are plastic products made by heating and melting thermoplastic or thermosetting plastics in an injection molding machine, injecting the melted plastics into a mold cavity under high pressure, and then cooling and shaping them. They are widely used in the automotive industry, electronics, daily necessities, medical devices and other fields. They have significant advantages such as high production efficiency, high precision, strong design flexibility, diverse performance and light weight. Anti-drop pneumatic gripper components are crucial in industrial production because they can ensure stable clamping of workpieces through special design and structure, reduce production interruptions and defect rates to improve efficiency, reduce costs, ensure personnel safety, and adapt to complex and harsh working conditions to achieve reliable operation.
[0003] The anti-drop pneumatic gripper assembly for injection molded products generally consists of a gripper body, a pneumatic drive device, and an anti-drop mechanism. The assembly uses compressed air delivered through air pipes and connectors to drive a cylinder, which in turn opens and closes the gripper body. At the same time, anti-drop mechanisms such as elastic grippers, magnetic or vacuum adsorption work together, and position and pressure sensors provide precise monitoring and feedback. Connecting and fixing components ensure overall stability, enabling reliable gripping and anti-drop transportation of injection molded products.
[0004] Existing pneumatic gripper assemblies for preventing detachment in some injection molded products cannot quickly disassemble the clamps. When a component of the gripper assembly malfunctions and needs repair or replacement, the inability to quickly disassemble the clamps forces maintenance personnel to spend a significant amount of time removing the relevant parts. This not only increases the difficulty and complexity of repairs but also prolongs equipment downtime, impacting production efficiency. In injection molding production, clamps need to be frequently changed according to different product models or production process requirements. The inability to quickly disassemble clamps leads to excessively long clamp change times, increasing auxiliary time and reducing production efficiency. Therefore, this paper proposes a pneumatic gripper assembly for preventing detachment in injection molded products to solve these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a pneumatic gripper assembly for preventing injection molded products from falling off, aiming to improve the problem that existing technologies cannot achieve quick disassembly of the clamps.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A pneumatic gripper assembly for preventing injection molded products from falling off includes a worktable. A connecting column is fixedly connected to the top of the worktable. A frame is fixedly connected to the outside of the connecting column. Two limiting rods are fixedly connected inside the frame. A second sliding block is slidably connected to the outside of the limiting rods. A lubrication component is provided inside the second sliding block. A first sliding block is fixedly connected to the top of the second sliding block. A sliding column is fixedly connected to the bottom of the first sliding block. Multiple connecting blocks are fixedly connected to the outside of the sliding column. A fixed column is slidably connected to the outside of the sliding column. An extrusion ring is fixedly connected inside the fixed column.
[0008] As a further description of the above technical solution:
[0009] The lubrication assembly includes an oil inlet, the outside of which is fixedly connected to the inside of the sliding block two. A piston is slidably connected inside the oil inlet. A storage groove is formed inside the sliding block two. Multiple rotating holes are formed inside the storage groove. Ball bearings are rotatably connected inside each of the multiple rotating holes.
[0010] As a further description of the above technical solution:
[0011] A spring is fixedly connected inside the sliding column, and the other end of the spring is slidably connected to the top of the compression ring;
[0012] As a further description of the above technical solution:
[0013] The fixed column has multiple slots inside, and the outer side of the connecting block is slidably connected to the inside of the slots;
[0014] As a further description of the above technical solution:
[0015] The inner side of the sliding column is slidably connected to the outer side of the extrusion ring, and the top of the fixed column is slidably connected to the bottom of the sliding block.
[0016] As a further description of the above technical solution:
[0017] The outer side of the ball is slidably connected to the outer side of the limiting rod, and the outer side of the piston is slidably connected to the inside of the sliding block 2;
[0018] As a further description of the above technical solution:
[0019] A cylinder is fixedly connected inside the frame, and the driving end of the cylinder is fixedly connected to the outside of the sliding block.
[0020] As a further description of the above technical solution:
[0021] The bottom of the fixed column is fixedly connected to a clamp, and the top of the sliding block is fixedly connected to a storage groove.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by cooperating with a sliding column, which in turn cooperates with a spring and a connecting block, which in turn cooperates with a slot, which in turn cooperates with a fixed column, and which in turn cooperates with a compression ring, the fixture can be quickly disassembled or installed. When the fixture malfunctions and needs to be repaired, the fixed column can be quickly removed, thus facilitating the repair of the fixture, reducing repair time and equipment downtime, and improving production efficiency.
[0024] 2. In this utility model, by using a sliding block in conjunction with a storage groove, a storage groove in conjunction with a rotating hole, and a rotating hole in conjunction with a ball bearing, the sliding block can rotate to add lubricating oil to the outer side of the limiting rod when it moves. The lubricating oil can effectively reduce the coefficient of friction between the sliding block and the limiting rod, reduce wear between the two during relative movement, thereby extending the service life of the sliding block and the limiting rod, and ensuring the stability and reliability of the equipment. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a pneumatic gripper assembly for preventing the injection molded product from falling off, as proposed in this utility model.
[0026] Figure 2 This is a schematic diagram of the sliding block of a pneumatic gripper assembly for preventing the injection molded product from falling off, as proposed in this utility model.
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0029] Legend:
[0030] 1. Worktable; 2. Connecting column; 3. Limiting rod; 4. Sliding block one; 5. Sliding block two; 6. Storage tank; 7. Ball bearing; 8. Oil inlet; 9. Piston; 10. Fixed column; 11. Extrusion ring; 12. Slot; 13. Fixture; 14. Frame; 15. Cylinder; 16. Rotating hole; 17. Sliding column; 18. Connecting block; 19. Spring. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a pneumatic gripper assembly for preventing injection molded products from falling off. The assembly includes a worktable 1 as the basic support structure, whose stable design effectively bears the load generated during the operation of each component, ensuring stable equipment operation. A connecting column 2 is fixedly connected to the top of the worktable 1. The connecting column 2 is vertically positioned to provide precise vertical positioning and stable support for the upper frame 14, ensuring the accuracy and firmness of the frame 14's installation. The frame 14 is fixedly connected to the outside of the connecting column 2, forming the assembly's external protection and support system. Its rigid structure can resist external impacts, maintain the stable operation of internal components, and prevent external interference from affecting the gripper's working accuracy.
[0033] The frame 14 has two fixed internal connections of limiting rods 3. The limiting rods 3 serve as precise guides and limiters, strictly constraining the movement trajectory of the sliding block 2 5, ensuring that the sliding block 2 5 remains stable during movement, preventing deviation or shaking, and ensuring the accuracy of the gripper movement. The sliding block 2 5, which is slidably connected to the outer side of the limiting rods 3, can slide flexibly along the limiting rods 3, realizing stable horizontal displacement of the gripper assembly, ensuring accurate and error-free gripping of injection molded products. The sliding block 2 5 is equipped with a lubrication component, which continuously provides lubrication to the sliding contact parts, significantly reducing friction between the sliding block 2 5 and the limiting rods 3, reducing component wear, effectively extending the service life of the equipment, and reducing maintenance costs.
[0034] The top of the sliding block 2 5 is fixedly connected to the sliding block 1 4. The two work together to enhance the stability and flexibility of the overall structure in the horizontal and vertical directions, so that the gripper can flexibly adjust its position in different working scenarios. The storage groove 6 fixedly connected to the top of the sliding block 1 4 is used to store the lubricating oil required by the lubrication components, providing a continuous and stable oil supply for the lubrication of the ball 7, ensuring that the lubrication work is uninterrupted. The cylinder 15 fixedly connected inside the frame 14 serves as the power core and can output a powerful and stable driving force to precisely control the movement of the sliding block 1 4, thereby achieving precise control of the position of the clamp 13 and meeting the work requirements of quick clamping and placement of injection molded products.
[0035] The drive end of cylinder 15 is fixedly connected to the outside of sliding block 4. This connection method can efficiently transmit power, enabling sliding block 4 to respond quickly to the drive command of cylinder 15, ensuring the agile movement of the gripper assembly and improving work efficiency. The sliding column 17 fixedly connected to the bottom of sliding block 4 provides a vertical sliding channel for fixed column 10 and clamp 13, while bearing the weight and force of clamp 13 during operation, ensuring stable and reliable vertical movement of clamp 13. The spring 19 fixedly connected inside sliding column 17 plays a buffering and fastening role during the installation and disassembly of clamp 13 due to its good elastic recovery performance, making the connection between fixed column 10 and sliding column 17 stable and preventing clamp 13 from loosening and falling off during operation.
[0036] The other end of the spring 19 is slidably connected to the top of the compression ring 11. The compression ring 11 and the spring 19 cooperate with each other. When the clamp 13 is installed in place, the elastic force of the spring 19 pushes the compression ring 11 to firmly fix the fixed post 10, further enhancing the reliability of the connection. Multiple connecting blocks 18 fixedly connected to the outside of the sliding post 17 cooperate with the slot 12 inside the fixed post 10 to form a key structure for quick installation and disassembly of the clamp 13, which facilitates the replacement operation of the clamp 13. The fixed post 10 slidably connected to the outside of the sliding post 17 can slide up and down along the sliding post 17. Under the action of the connecting blocks 18 and the slot 12, the clamp 13 is accurately positioned and firmly fixed, ensuring the stability of the gripper during operation.
[0037] The clamp 13, fixedly connected to the bottom of the fixed column 10, is the actuator that directly clamps the injection-molded product. Its stable connection with the fixed column 10 ensures it will not easily detach during clamping, guaranteeing safe and reliable clamping operation. The top of the fixed column 10 is slidably connected to the bottom of the sliding block 4. This connection provides effective support and guidance for the fixed column 10 during sliding, ensuring smooth movement of the clamp 13 and improving clamping accuracy. Multiple slots 12 inside the fixed column 10 cooperate with the connecting block 18 to form a rotatable locking structure. The clamp 13 can be installed and removed simply by rotating the fixed column 10, making operation convenient and the connection tight. The outer side of the connecting block 18 is slidably connected to the inside of the slot 12. By rotating the fixed column 10, the connecting block 18 slides in the slot 12 to complete the installation or removal of the clamp 13. The operation is simple and the connection is firm. The compression ring 11 is fixedly connected inside the fixed column 10. Under the action of the spring 19, the compression ring 11 applies pressure to the fixed column 10 to ensure that the fixed column 10 and the sliding column 17 are tightly connected and to prevent the clamp 13 from loosening during operation. The inner side of the sliding column 17 is slidably connected to the outer side of the compression ring 11. This structural design makes the sliding column 17 and the compression ring 11 fit tightly, ensuring that the force of the spring 19 can be effectively transmitted and to achieve the fastening of the fixed column 10.
[0038] Reference Figure 1 , Figure 2and Figure 4 The lubrication assembly includes an oil inlet 8, which is used to replenish lubricating oil to the storage tank 6. Its design allows operators to quickly and conveniently add lubricating oil, ensuring continuous lubrication. The outer side of the oil inlet 8 is fixedly connected to the inside of the sliding block 5, ensuring the position of the oil inlet 8 is fixed and facilitating lubricating oil injection. A piston 9 is slidably connected inside the oil inlet 8 to prevent lubricating oil leakage. It can also be flexibly opened and closed when adding lubricating oil, ensuring the sealing of the lubrication device. The outer side of the piston 9 is slidably connected to the inside of the sliding block 5, allowing it to move stably within the sliding block 5, achieving effective control of the oil inlet 8. The storage tank 6 inside the sliding block 5 is used to store a large amount of lubricating oil for the ball bearings 7. The lubrication system provides sufficient oil to ensure the stable operation of the lubrication components for a long time. Multiple rotating holes 16 inside the storage tank 6 provide installation and rotation space for the balls 7, allowing the balls 7 to rotate flexibly within the rotating holes 16. The balls 7 are rotatably connected inside the multiple rotating holes 16. When the sliding block 2 5 moves, the balls 7 contact and roll with the limiting rod 3, carrying out the lubricating oil in the storage tank 6 and evenly coating the surface of the limiting rod 3 to achieve automatic lubrication. This effectively reduces the friction between the sliding block 2 5 and the limiting rod 3, improving the operating efficiency and stability of the equipment. The outer side of the balls 7 is slidably connected to the outer side of the limiting rod 3. This contact method allows the balls 7 to fully exert their lubricating effect, ensuring that the sliding block 2 5 slides smoothly on the limiting rod 3.
[0039] Working principle: When the operator needs to replace the clamp 13, they can rotate the clamp 13, which in turn moves the fixing post 10, causing the slot 12 inside the fixing post 10 to rotate as well. Inside the fixing post 10, there is a sliding post 17, and on the outside of the sliding post 17 are multiple connecting blocks 18. When the fixing post 10 rotates, the connecting blocks 18 disengage from the corner of the slot 12, allowing the fixing post 10 to be removed. Then, the clamp 13 can be repaired. After repair, it can be used again... Align the outer side of the connecting block 18 with the inside of the slot 12, and slide the connecting block 18 into the slot 12. When the sliding post 17 slides to the bottom of the fixed post 10, the compression ring 11 will compress the spring 19 connected inside the sliding post 17, causing the spring 19 to contract. Then rotate the clamp 13 so that the connecting block 18 slides to the corner of the slot 12. When the clamp 13 is released, the connecting block 18 and the slot 12 will be connected more tightly due to the spring 19 rebounding.
[0040] When the clamp 13 needs to clamp the injection molded product, the cylinder 15 can be activated to drive the sliding block 4. The sliding block 4 can then control the position of the clamp 13. When the sliding block 4 moves, it will drive the sliding blocks 5 connected on both sides together. Then the piston 9 can be lifted and removed from the oil inlet 8. Lubricating oil is then poured into the storage tank 6 through the oil inlet 8. The storage tank 6 is connected to multiple balls 7. The sliding block 5 slides on the outside of the limiting rod 3. When the sliding block 5 is driven, the balls 7 also move. The outside of the balls 7 presses against the outside of the limiting rod 3. The limiting rod 3 will rotate due to the movement of the sliding block 5, thereby carrying out the lubricating oil inside the storage tank 6 through the balls 7.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pneumatic gripper assembly for preventing injection molded products from falling off, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to a connecting column (2), and a frame (14) is fixedly connected to the outside of the connecting column (2). Two limiting rods (3) are fixedly connected inside the frame (14). A sliding block two (5) is slidably connected to the outside of the limiting rods (3). A lubrication component is provided inside the sliding block two (5). A sliding block one (4) is fixedly connected to the top of the sliding block two (5). A sliding column (17) is fixedly connected to the bottom of the sliding block one (4). Multiple connecting blocks (18) are fixedly connected to the outside of the sliding column (17). A fixed column (10) is slidably connected to the outside of the sliding column (17). A compression ring (11) is fixedly connected inside the fixed column (10).
2. The pneumatic gripper assembly for preventing the injection molded product from falling off, as described in claim 1, is characterized in that: The lubrication assembly includes an oil inlet (8), the outside of which is fixedly connected to the inside of the sliding block 2 (5). A piston (9) is slidably connected inside the oil inlet (8). A storage groove (6) is provided inside the sliding block 2 (5). A plurality of rotating holes (16) are provided inside the storage groove (6). A ball bearing (7) is rotatably connected inside each of the plurality of rotating holes (16).
3. The pneumatic gripper assembly for preventing the injection molded product from falling off, as described in claim 1, is characterized in that: A spring (19) is fixedly connected inside the sliding column (17), and the other end of the spring (19) is slidably connected to the top of the compression ring (11).
4. The pneumatic gripper assembly for preventing the injection molded product from falling off, as described in claim 1, is characterized in that: The fixed column (10) has multiple slots (12) inside, and the outer side of the connecting block (18) is slidably connected to the inside of the slots (12).
5. The pneumatic gripper assembly for preventing the injection molded product from falling off, as described in claim 1, is characterized in that: The inner side of the sliding column (17) is slidably connected to the outer side of the compression ring (11), and the top of the fixed column (10) is slidably connected to the bottom of the sliding block (4).
6. The pneumatic gripper assembly for preventing the injection molded product from falling off, as described in claim 2, is characterized in that: The outer side of the ball (7) is slidably connected to the outer side of the limiting rod (3), and the outer side of the piston (9) is slidably connected to the inside of the sliding block (5).
7. The pneumatic gripper assembly for preventing the injection molded product from falling off, as described in claim 1, is characterized in that: A cylinder (15) is fixedly connected inside the frame (14), and the driving end of the cylinder (15) is fixedly connected to the outside of the sliding block (4).
8. The pneumatic gripper assembly for preventing the injection molded product from falling off, as described in claim 1, is characterized in that: The bottom of the fixed column (10) is fixedly connected to a clamp (13), and the top of the sliding block (4) is fixedly connected to a storage groove (6).