Fixture for production of injection-molded joint
By designing an adjustable-angle clamping structure and a clamping plate buffer design, the problem of existing clamps being unable to be flexibly adjusted was solved, thereby improving the production efficiency and product quality of injection molded joints.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 芜湖富田电子科技有限公司
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-01
AI Technical Summary
Existing fixtures for injection molding joint production are difficult to adjust flexibly according to injection molding joints at different angles, resulting in low production efficiency and potential damage to the joints.
A clamping structure including a main frame, driven ring, cylinder, motor and gripper is designed. The main wheel is driven by the motor to rotate and the clamping angle is adjusted. The push block and guide groove structure are used to ensure clamping accuracy. The clamping plate is equipped with rubber pads to cushion and enhance friction.
This invention achieves adjustable clamp angle and clamping stability, improves production efficiency, avoids joint damage, and enhances clamping stability and safety.
Smart Images

Figure CN224182914U_ABST
Abstract
Description
A fixture for producing injection molded joints Technical Field
[0001] This utility model relates to the field of fixture technology, specifically a fixture for injection molding joint production. Background Technology
[0002] In the field of injection molding joint production, fixtures are key process equipment, and their performance directly affects the production efficiency and product quality of injection molding joints.
[0003] In existing fixture technologies for injection molded joint production, most fixtures have a fixed clamping angle, making it difficult to flexibly adjust them according to the different angles of the injection molded joints. In actual production, when encountering injection molded joints with special angle requirements, fixed-angle fixtures cannot effectively complete the clamping task, resulting in low production efficiency and even damage to the joint due to forced clamping, increasing production costs.
[0004] Based on this, a fixture for injection molding joint production is now provided, which can eliminate the drawbacks of existing fixtures. Summary of the Invention
[0005] The purpose of this utility model is to provide a fixture for the production of injection molded joints to solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A fixture for producing injection molded joints includes a main frame with a frame cavity and a moving groove inside the frame cavity. A driven ring is fixed at the upper center of the main frame, and a mounting plate is rotatably mounted on the upper end of the driven ring. A cylinder is mounted at the upper center of the mounting plate. The telescopic end of the cylinder passes through the mounting plate and the driven ring in sequence and extends into the frame cavity to be fixedly connected to a push block. A fixing lug is symmetrically fixed on both sides of the push block. The fixing lug is rotatably connected to one end of a connecting rod. The other end of the connecting rod is rotatably connected to one end of an L-shaped connecting rod. A rotating rod is fixed on the L-shaped connecting rod. The L-shaped connecting rod is rotatably connected to the inner wall of the frame cavity through the rotating rod. The other end of the L-shaped connecting rod is rotatably connected to one end of a second connecting rod. The other end of the second connecting rod is connected to a gripper, and the gripper slides in the moving groove.
[0008] Preferably, a motor is mounted on the mounting plate, and the output end of the motor extends to the lower end of the mounting plate and is fixedly connected to the main wheel. The main wheel is connected to the driven ring via a transmission belt.
[0009] Preferably, guide grooves are provided on the inner walls of the front and rear sides of the frame cavity, and guide blocks are fixed at the front and rear ends of the push block, with the guide blocks matching the guide grooves.
[0010] Preferably, the guide groove and guide block have a T-shaped cross-section.
[0011] Preferably, the gripper includes a second fixed ear, which is rotatably connected to a second connecting rod. The second fixed ear is fixed on a moving block that matches the moving slot. The lower end of the moving block extends to the bottom of the main frame through a connecting block and is fixedly connected to a fixed block. A first connecting plate is fixed to the lower end of the fixed block. A second connecting plate is detachably installed at the lower end of the second connecting plate. A clamping plate is fixed to the lower end of the second connecting plate.
[0012] Preferably, the clamping end of the clamping plate is provided with a rubber pad.
[0013] Preferably, the outer surface of the rubber pad is provided with anti-slip texture.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model uses a motor to drive the main wheel to rotate, and the main wheel drives the driven ring to rotate through a transmission belt. Since the driven ring is fixed on the upper end of the main frame and rotates on the lower end of the mounting plate, the rotation of the driven ring can drive the main frame to rotate, thereby adjusting the angle position of the main frame and the clamping plate, which is beneficial to adapting to the clamping requirements of injection joints at different angles.
[0016] 2. In this utility model, the guide blocks at both ends of the push block slide in the guide grooves on the inner walls of the front and rear sides of the frame cavity. The cross-section of the guide groove and the guide block is T-shaped. This structure can ensure the stability of the push block movement, prevent the push block from deviating during the movement, and ensure that the clamping plate can accurately move to the designated position to clamp the injection joint.
[0017] 3. This utility model provides a rubber pad at the clamping end of the clamping plate, which can act as a buffer to prevent the clamping plate from directly contacting the injection joint rigidly and damaging the joint. At the same time, the outer surface of the rubber pad is provided with anti-slip texture, which can increase the friction between the clamping plate and the injection joint and improve the stability of clamping. Attached Figure Description
[0018] Figure 1 is a schematic diagram of the structure of this utility model.
[0019] Figure 2 is a schematic diagram of the gripper structure of this utility model.
[0020] Figure 3 is a structural schematic diagram of the motor, main wheel, transmission belt, and driven ring of this utility model.
[0021] Figure 4 is a schematic diagram of the internal structure of the frame cavity of this utility model.
[0022] Figure reference numerals: 11. Main frame; 12. Mounting plate; 13. Frame cavity; 14. Guide groove; 15. Moving groove; 16. Cylinder; 17. Push block; 18. Guide block; 19. Fixed ear one; 20. Connecting rod one; 21. L-shaped connecting rod; 22. Rotating rod; 23. Connecting rod two; 24. Fixed ear two; 25. Moving block; 26. Connecting block; 27. Fixed block; 28. Connecting plate one; 29. Connecting plate two; 30. Clamping plate; 31. Rubber pad; 32. Motor; 33. Main wheel; 34. Transmission belt; 35. Driven ring. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] In one embodiment, as shown in Figures 1-4, a fixture for producing injection molded joints includes a main frame 11. A frame cavity 13 is formed on the main frame 11, and a moving groove 15 is formed within the frame cavity 13. A driven ring 35 is fixed to the middle of the upper end of the main frame 11. A mounting plate 12 is rotatably mounted on the upper end of the driven ring 35. A cylinder 16 is mounted on the middle of the upper end of the mounting plate 12. The telescopic end of the cylinder 16 passes sequentially through the mounting plate 12 and the driven ring 35, and extends into the frame cavity 13 for fixed connection. Push block 17, with fixed ears 19 symmetrically fixed on both sides. Fixed ears 19 are rotatably connected to one end of connecting rod 20. The other end of connecting rod 20 is rotatably connected to one end of L-shaped connecting rod 21. A rotating rod 22 is fixed on L-shaped connecting rod 21. L-shaped connecting rod 21 is rotatably connected to the inner wall of frame cavity 13 through rotating rod 22. The other end of L-shaped connecting rod 21 is rotatably connected to one end of connecting rod 23. The other end of connecting rod 23 is connected to a gripper. The gripper slides with moving groove 15.
[0025] In this embodiment, when the clamp is needed to hold the injection molding joint, the cylinder 16 starts working, and its telescopic end moves downward, driving the push block 17 to move downward within the frame cavity 13. Since the push block 17 has symmetrically fixed fixing ears 19 on both sides, and the fixing ears 19 are rotatably connected to one end of the connecting rod 20, and the other end of the connecting rod 20 is rotatably connected to one end of the L-shaped connecting rod 21, and the L-shaped connecting rod 21 is rotatably connected to the inner wall of the frame cavity 13 via the rotating rod 22, when the push block 17 moves downward, it will pull the L-shaped connecting rod 21 to rotate around the rotating rod 22 via the connecting rod 20. The other end of the L-shaped connecting rod 21 is rotatably connected to one end of the connecting rod 23, and the other end of the connecting rod 23 is connected to the gripper. Therefore, the rotation of the L-shaped connecting rod 21 will drive the connecting rod 23 to move, thereby causing the gripper to move along the moving groove 15, so that the two grippers cooperate to clamp the injection molding joint.
[0026] In an optional embodiment, as shown in Figures 1-4, a motor 32 is mounted on the mounting plate 12. The output end of the motor 32 extends to the lower end of the mounting plate 12 and is fixedly connected to the main wheel 33. The main wheel 33 is connected to the driven ring 35 via a transmission belt 34.
[0027] It should be noted that when the clamping angle of the fixture needs to be adjusted, the motor 32 works, driving the main wheel 33 to rotate. The main wheel 33 drives the driven ring 35 to rotate through the transmission belt 34, thereby causing the main frame 11 to rotate, thus realizing the adjustment of the clamping angle of the gripper to meet the clamping requirements in the production process of different injection molding joints.
[0028] In an optional embodiment, as shown in Figures 2 and 4, guide grooves 14 are provided on the inner walls of the front and rear sides of the frame cavity 13, and guide blocks 18 are fixed at the front and rear ends of the push block 17, with the guide blocks 18 matching the guide grooves 14.
[0029] The guide groove 14 and the guide block 18 have a T-shaped cross-section.
[0030] It should be noted that the guide blocks 18 at both ends of the push block 17 slide in the guide grooves 14 on the inner walls of the front and rear sides of the frame cavity 13. Since the cross-section of the guide grooves 14 and the guide blocks 18 is a T-shaped structure, this structure can ensure the stability of the push block 17 movement, prevent the push block 17 from deviating during the movement, and ensure that the gripper can accurately move to the designated position to clamp the injection joint.
[0031] In an optional embodiment, as shown in Figures 2 and 4, the gripper includes a second fixed lug 24, which is rotatably connected to a second connecting rod 23. The second fixed lug 24 is fixed on a moving block 25 that matches the moving slot 15. The lower end of the moving block 25 extends through a connecting block 26 to a fixed block 27 below the main frame 11. A first connecting plate 28 is fixed to the lower end of the fixed block 27. A second connecting plate 29 is detachably installed at the lower end of the first connecting plate 28. A clamping plate 30 is fixed to the lower end of the second connecting plate 29.
[0032] The clamping end of the clamping plate 30 is provided with a rubber pad 31.
[0033] The outer surface of the rubber pad 31 is provided with anti-slip texture.
[0034] It should be noted that when the connecting rod 23 moves, it will drive the moving block 25 to slide along the moving groove 15 through the fixed ear 24. The two moving blocks 25 slide relative to each other synchronously, thereby causing the connecting block 26, fixed block 27, connecting plate 1 28, connecting plate 2 29 and clamping plate 30 at their lower ends to move relative to each other synchronously. The two clamping plates 30 move closer to each other to achieve clamping of the injection joint.
[0035] The rubber pad 31 can act as a buffer to prevent the clamping plate 30 from directly contacting the injection joint and damaging it. At the same time, the anti-slip texture can increase the friction between the clamping plate 30 and the injection joint, and improve the stability of clamping.
[0036] The above embodiment discloses a fixture for producing injection molded joints. When it is necessary to clamp the injection molded joint, the cylinder 16 is activated, and its telescopic end moves downward, pushing the push block 17 downward within the frame cavity 13. The fixing ears 19 on both sides of the push block 17 pull the L-shaped connecting rod 21 around the rotating rod 22 via the connecting rod 20. The rotation of the L-shaped connecting rod 21 drives the connecting rod 23 to move. The connecting rod 23 drives the moving block 25 to slide along the moving groove 15 via the fixing ears 24. The two moving blocks 25 slide synchronously relative to each other, thereby causing the connecting block 26, fixing block 27, connecting plate 28, connecting plate 29 and clamping plate 30 at their lower ends to move synchronously relative to each other. The two clamping plates 30 move closer to each other, thereby clamping the injection molded joint.
[0037] When the clamping angle of the fixture needs to be adjusted, the motor 32 operates, driving the main wheel 33 to rotate. The main wheel 33 drives the driven ring 35 to rotate through the transmission belt 34, thereby causing the main frame 11 to rotate, thus realizing the adjustment of the clamping angle.
[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A fixture for producing injection molded joints, characterized in that, The system includes a main frame (11), on which a frame cavity (13) is formed. A movable groove (15) is formed within the frame cavity (13). A driven ring (35) is fixed to the middle of the upper end of the main frame (11). A mounting plate (12) is rotatably mounted on the upper end of the driven ring (35). A cylinder (16) is mounted on the middle of the upper end of the mounting plate (12). The telescopic end of the cylinder (16) passes sequentially through the mounting plate (12) and the driven ring (35), and extends into the frame cavity (13) where a push block (17) is fixedly connected. The push block (17) has two... A fixing ear (19) is fixed symmetrically on both sides. The fixing ear (19) is rotatably connected to one end of the connecting rod (20). The other end of the connecting rod (20) is rotatably connected to one end of the L-shaped connecting rod (21). A rotating rod (22) is fixed on the L-shaped connecting rod (21). The L-shaped connecting rod (21) is rotatably connected to the inner wall of the frame cavity (13) through the rotating rod (22). The other end of the L-shaped connecting rod (21) is rotatably connected to one end of the connecting rod (23). The other end of the connecting rod (23) is connected to the gripper. The gripper slides with the moving groove (15).
2. The fixture for producing injection molded joints according to claim 1, characterized in that, A motor (32) is mounted on the mounting plate (12). The output end of the motor (32) extends to the lower end of the mounting plate (12) and is fixedly connected to the main wheel (33). The main wheel (33) is connected to the driven ring (35) via a transmission belt (34).
3. The fixture for producing injection molded joints according to claim 1, characterized in that, The inner walls of the front and rear sides of the frame cavity (13) are provided with guide grooves (14), and the front and rear ends of the push block (17) are fixed with guide blocks (18), and the guide blocks (18) match the guide grooves (14).
4. A fixture for producing injection molded joints according to claim 3, characterized in that, The cross-sections of the guide groove (14) and guide block (18) are T-shaped.
5. A fixture for producing injection molded joints according to claim 1, characterized in that, The gripper includes a second fixed ear (24), which is rotatably connected to a second connecting rod (23). The second fixed ear (24) is fixed on a moving block (25) that matches the moving slot (15). The lower end of the moving block (25) extends through a connecting block (26) to a fixed block (27) below the main frame (11). A first connecting plate (28) is fixed to the lower end of the fixed block (27). A second connecting plate (29) is detachably installed to the lower end of the first connecting plate (28). A clamping plate (30) is fixed to the lower end of the second connecting plate (29).
6. A fixture for producing injection molded joints according to claim 5, characterized in that, The clamping end of the clamping plate (30) is provided with a rubber pad (31).
7. A fixture for producing injection molded joints according to claim 6, characterized in that, The outer surface of the rubber pad (31) is provided with anti-slip texture.