A clamping mechanism of a robot for assembling injection molded parts

Abstract

The utility model discloses an injection molding part assembly technical field's a kind of injection molding part assembly robot's clamping mechanism, including the base of robot, the base top hinged mounting has mechanical arm, the one end of the mechanical arm hinged mounting has support frame, the support frame one side integrally has support plate, the support plate one side mounting has the clamping piece for fixed workpiece, the support plate bottom welding frame has fixed plate, the support plate of support frame one side can support and install fixed clamping piece, the fixed plate of support plate bottom can keep different distance between clamping piece and clamping piece, clamping piece can clamp and fix workpiece, using clamping piece can assist clamping piece to clamp and fix workpiece, prevent workpiece from deviating or shaking, also can avoid that workpiece length is longer and leads to workpiece clamping unstable.

Description

Technical Field

[0001] This utility model relates to the field of injection molded parts assembly, specifically a clamping mechanism for a robot used in injection molded parts assembly. Background Technology

[0002] In automated assembly lines for injection molded parts, the robotic clamping mechanism is the core component for achieving precise workpiece transfer, positioning, and assembly. Its clamping stability directly affects the product assembly accuracy and production efficiency. Currently, most injection molded part clamping mechanisms widely used in the industry are single-set clamping structures, which have obvious functional defects when dealing with the clamping needs of diverse injection molded parts, especially longer workpieces.

[0003] Existing single-clamping mechanisms fix injection molded parts through a single clamping point or area, resulting in concentrated clamping force with a limited range of action. For longer injection molded parts (such as automotive door panel trim strips and long, narrow appliance casings), this clamping method struggles to balance the overall force on the workpiece. This makes it highly susceptible to workpiece wobbling, shifting, or even detaching from the clamping mechanism during transport or assembly due to a shift in the center of gravity. This not only causes workpiece damage and assembly precision errors but can also lead to production line downtime due to workpiece drops, severely impacting production continuity, assembly accuracy, and efficiency.

[0004] Meanwhile, existing clamping mechanisms are mostly designed with fixed dimensions, which cannot be adapted to the length specifications of injection molded parts. When switching between injection molded parts of different lengths on the production line, it is necessary to manually replace the appropriate clamping components or make complex mechanical adjustments to the clamping mechanism. The operation is cumbersome and time-consuming, making it difficult to meet the flexible production needs of modern production lines with multiple varieties and small batches.

[0005] With the increasing demands for product precision and production efficiency in the injection molding industry, and the trend towards larger and more diversified injection molded parts, existing single-unit fixed clamping mechanisms can no longer meet actual production needs. The resulting problems, such as unstable workpiece clamping and difficulties in changeover adjustments, have become prominent bottlenecks restricting the efficiency of automated assembly lines. Therefore, developing a robotic clamping mechanism capable of dual clamping and flexible adjustment according to workpiece length is of great significance for improving the stability of injection molded part clamping, shortening changeover time, and reducing production failure rates, and is an urgent need to promote the upgrading of automated injection molding assembly technology. Utility Model Content

[0006] The purpose of this invention is to provide a clamping mechanism for a robot used in assembling injection molded parts, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a clamping mechanism for a robot assembling injection molded parts, comprising a robot base, a robotic arm hinged to the top of the base, a support frame hinged to one end of the robotic arm, a support plate integrally formed on one side of the support frame, a clamping component for fixing the workpiece installed on one side of the support plate, a fixing plate welded to the bottom of the support plate, and a clamping component for assisting in fixing the workpiece installed on one side of the fixing plate.

[0008] Preferably, the clamping member includes a first motor installed at the bottom of the support plate, a first gear mounted on the first motor via an output shaft, a second gear mounted on the top of the support plate and on one side of the first gear via a fixed shaft, a pull rod welded to one side of the first gear and one side of the second gear respectively, a gripper hinged to one end of the pull rod, and the first gear and the second gear meshing with each other.

[0009] Preferably, the clamping member further includes two connecting rods hinged to both sides of the support plate, and the other end of the connecting rod is hinged to one side of the clamping claw.

[0010] Preferably, the clamping member includes a fixing hole on one side of the fixing plate, a screw passing through the inner side of the fixing hole, a second motor installed at the bottom of the fixing plate and at the bottom of the screw, a driving block passing through the outer side of the screw, the screw passing through the driving block and screwed to it, and the driving block being slidably connected to the fixing hole.

[0011] Preferably, the clamping component further includes a bidirectional lead screw passing through the inner side of the driving block, a third motor is installed on one side of the driving block and at one end of the bidirectional lead screw, two moving blocks are fitted on the outer side of the bidirectional lead screw, and a clamping strip is welded to one side of the moving block.

[0012] Preferably, an arc-shaped groove is provided on the inner side of the gripper and on one side of the clamping bar, and an anti-slip pad is laid on one side of the arc-shaped groove.

[0013] Preferably, a spring for supporting the drive block is fitted on the outside of the screw, and the two ends of the spring are fixedly connected to the fixing plate and the drive block, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The base supports and mounts the robotic arm, which can rotate and extend in multiple directions. The support plate on one side of the support frame supports and mounts the clamping components. The fixing plate at the bottom of the support plate allows the clamping components to maintain different distances from the clamping components. The clamping components can clamp and fix the workpiece. The clamping components can assist the clamping components in clamping and fixing the workpiece, preventing the workpiece from shifting or shaking. At the same time, it can also avoid the workpiece being too long and causing unstable clamping, thus improving the convenience and stability of clamping the workpiece for assembly operations.

[0015] 2. Both the first gear and the second gear are non-standard gears. The first motor can drive the first gear to rotate through the output shaft. The meshing rotation of the first gear and the second gear can drive the pull rod to swing. The pull rod can drive the gripper to rotate hingedly, so that the two grippers can clamp and release the workpiece. Two sets of connecting rods are located on one side of the gripper. The connecting rods are hinged to the gripper and rotate. The connecting rods support and limit the gripper, improving the stability and convenience of the two grippers clamping and fixing the workpiece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the clamping component in the overall structure of this utility model; Figure 3 This is a schematic diagram of the clamping component in the overall structure of this utility model.

[0017] In the diagram: 1. Base; 2. Robotic arm; 3. Support frame; 4. Support plate; 5. Fixing plate; 6. First motor; 7. First gear; 8. Fixed shaft; 9. Second gear; 10. Pull rod; 11. Gripper; 12. Connecting rod; 13. Fixing hole; 14. Screw; 15. Second motor; 16. Drive block; 17. Bidirectional lead screw; 18. Third motor; 19. Moving block; 20. Clamping bar; 21. Arc groove; 22. Anti-slip pad; 23. Spring. Detailed Implementation

[0018] 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. Example

[0019] Please refer to Figure 1-3 As shown, this utility model provides a clamping mechanism for a robot used for assembling injection molded parts, including a robot base 1, a robotic arm 2 hinged to the top of the base 1, a support frame 3 hinged to one end of the robotic arm 2, a support plate 4 integrally formed on one side of the support frame 3, a clamping component for fixing the workpiece installed on one side of the support plate 4, a fixing plate 5 welded to the bottom of the support plate 4, and a clamping component for assisting in fixing the workpiece installed on one side of the fixing plate 5.

[0020] In addition, the base 1 can support and install the robotic arm 2, which can rotate and extend in multiple directions. The support plate 4 on one side of the support frame 3 can support and fix the clamping parts. The fixing plate 5 at the bottom of the support plate 4 can maintain different distances between the clamping parts and the clamping parts. The clamping parts can clamp and fix the workpiece. The clamping parts can assist the clamping parts in clamping and fixing the workpiece, preventing the workpiece from shifting or shaking. At the same time, it can also avoid the workpiece being too long and causing unstable clamping, thus improving the convenience and stability of clamping the workpiece for assembly operations.

[0021] Specifically, the clamping component includes a first motor 6 installed at the bottom of the support plate 4, a first gear 7 installed on the first motor 6 via an output shaft, a second gear 9 installed on the top of the support plate 4 and on one side of the first gear 7 via a fixed shaft 8, a pull rod 10 welded to one side of the first gear 7 and the second gear 9 respectively, a gripper 11 hinged to one end of the pull rod 10, the first gear 7 and the second gear 9 meshing with each other, the clamping component also includes two connecting rods 12 hinged to both sides of the support plate 4, the other end of the connecting rod 12 hinged to one side of the gripper 11.

[0022] Among them, the first gear 7 and the second gear 9 are both non-standard gears. The first motor 6 can drive the first gear 7 to rotate through the output shaft. The meshing rotation of the first gear 7 and the second gear 9 can drive the pull rod 10 to swing. The pull rod 10 can drive the gripper 11 to rotate hingedly, so that the two grippers 11 can clamp and release the workpiece. The two sets of connecting rods 12 are located on one side of the gripper 11 respectively. The connecting rods 12 are hinged to the gripper 11 and rotate. The connecting rods 12 support and limit the gripper 11, improving the stability and convenience of the two grippers 11 in clamping and fixing the workpiece.

[0023] More specifically, the clamping component includes a fixing hole 13 on one side of the fixing plate 5, a screw 14 passing through the inner side of the fixing hole 13, a second motor 15 installed at the bottom of the fixing plate 5 and at the bottom of the screw 14, a drive block 16 passing through the outer side of the screw 14, the screw 14 passing through the drive block 16 and being screwed to it, the drive block 16 being slidably connected to the fixing hole 13, the clamping component also includes a bidirectional lead screw 17 passing through the inner side of the drive block 16, a third motor 18 installed on one side of the drive block 16 and at one end of the bidirectional lead screw 17, two moving blocks 19 mounted on the outer side of the bidirectional lead screw 17, a clamping strip 20 welded on one side of the moving block 19, an arc-shaped groove 21 opened on the inner side of the gripper 11 and one side of the clamping strip 20 respectively, an anti-slip pad 22 laid on one side of the arc-shaped groove 21, and a spring 23 for supporting the drive block 16 mounted on the outer side of the screw 14, the two ends of the spring 23 being fixedly connected to the fixing plate 5 and the drive block 16 respectively.

[0024] Furthermore, the second motor 15 can drive the second screw 14 to rotate, and the second screw 14 can drive the driving block 16 to slide up and down inside the fixed plate 5. The spring 23 can push the driving block 16 upward, reducing the cutting force on the second screw 14 driving the driving block 16 to move up and down. The driving block 16 can drive the two clamping bars 20 to move closer to or away from the gripper 11. The third motor 18 can drive the bidirectional lead screw 17 to move, so that the bidirectional lead screw 17 drives the moving block 19 to slide inside the driving block 16, so that the clamping bar 20 on one side of the driving block 16 clamps and fixes the workpiece, thereby assisting the gripper 11 in double clamping and fixing the workpiece.

[0025] Among them, the arc groove 21 can fit and clamp the tubular workpiece, and the anti-slip pad 22 on one side of the gripper 11 and clamping bar 20 can fit with the workpiece to prevent the workpiece from shifting or shaking, and improve the anti-slip performance of fixing the workpiece.

[0026] Working principle: First, start the first motor 6, the second motor 15 and the third motor 18 as needed. The first motor 6 drives the first gear 7 to rotate through the output shaft. The first gear 7 and the second gear 9 mesh and rotate, causing the pull rod 10 to swing. The pull rod 10 drives the gripper 11 to rotate hingedly. The two grippers 11 clamp and release the workpiece. The two sets of connecting rods 12 rotate hingedly with the grippers 11, so that the connecting rods 12 support and limit the grippers 11. Next, the second motor 15 is started, which drives the second screw 14 to rotate. At this time, the second screw 14 drives the drive block 16 to slide up and down inside the fixed plate 5. At the same time, the spring 23 pushes the drive block 16 upward. The drive block 16 drives the two clamping bars 20 to approach the jaw 11. The third motor 18 drives the bidirectional lead screw 17 to move. At this time, the bidirectional lead screw 17 drives the moving block 19 to slide inside the drive block 16, so that the clamping bar 20 on one side of the drive block 16 clamps and fixes the workpiece.

[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0028] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A clamping mechanism for a robot used for assembling injection molded parts, comprising a robot base (1), characterized in that: The base (1) is hinged to the top of the mechanical arm (2), and a support frame (3) is hinged to one end of the mechanical arm (2). A support plate (4) is integrally formed on one side of the support frame (3). A clamping component for fixing the workpiece is installed on one side of the support plate (4). A fixing plate (5) is welded to the bottom of the support plate (4). A clamping component for assisting in fixing the workpiece is installed on one side of the fixing plate (5).

2. The clamping mechanism of a robot for assembling injection molded parts according to claim 1, characterized in that: The clamping component includes a first motor (6) installed at the bottom of the support plate (4), the first motor (6) is equipped with a first gear (7) through an output shaft, and a second gear (9) is installed on the top of the support plate (4) and on one side of the first gear (7) through a fixed shaft (8). A pull rod (10) is welded to one side of the first gear (7) and the second gear (9) respectively. A gripper (11) is hinged to one end of the pull rod (10), and the first gear (7) and the second gear (9) mesh with each other.

3. The clamping mechanism of a robot for assembling injection molded parts according to claim 2, characterized in that: The clamping component also includes two connecting rods (12) hinged to both sides of the support plate (4), and the other end of the connecting rods (12) is hinged to one side of the gripper (11).

4. The clamping mechanism of a robot for assembling injection molded parts according to claim 3, characterized in that: The clamping component includes a fixing hole (13) on one side of the fixing plate (5), a screw (14) passing through the inside of the fixing hole (13), a second motor (15) being installed at the bottom of the fixing plate (5) and at the bottom of the screw (14), a drive block (16) passing through the outside of the screw (14), the screw (14) passing through the drive block (16) and being screwed to it, and the drive block (16) being slidably connected to the fixing hole (13).

5. The clamping mechanism of a robot for assembling injection molded parts according to claim 4, characterized in that: The clamping component also includes a bidirectional lead screw (17) that runs through the inside of the drive block (16). A third motor (18) is installed on one side of the drive block (16) and at one end of the bidirectional lead screw (17). Two moving blocks (19) are fitted on the outside of the bidirectional lead screw (17). A clamping strip (20) is welded to one side of the moving block (19).

6. The clamping mechanism of a robot for assembling injection molded parts according to claim 5, characterized in that: Arc-shaped grooves (21) are provided on the inner side of the gripper (11) and on the side of the clamping bar (20), and an anti-slip pad (22) is laid on one side of the arc-shaped groove (21).

7. The clamping mechanism of a robot for assembling injection molded parts according to claim 6, characterized in that: The screw (14) is fitted with a spring (23) for supporting the drive block (16) on the outside. The two ends of the spring (23) are fixedly connected to the fixing plate (5) and the drive block (16) respectively.

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