Novel injection molding machine take-out mechanical arm with convenient gripper replacement

Abstract

The utility model relates to mechanical arm technical field discloses a novel injection molding machine takes out mechanical arm of convenient replacement of gripper, including base, the top of base is provided with support rod no.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, specifically a novel injection molding machine part-removing robotic arm with a convenient gripper replacement mechanism. Background Technology

[0002] Robotic arms are complex systems with high precision, multiple inputs and multiple outputs, high nonlinearity, and strong coupling. Due to their unique operational flexibility, they have been widely used in industrial assembly, safety and explosion protection, and other fields. The usage rate of robotic arms in the injection molding industry is also increasing year by year. Robotic arms can quickly clamp the produced injection molded parts without affecting the next injection molding operation, thereby increasing work efficiency.

[0003] The published patent document CN222521953U discloses a novel injection molding machine part-retrieving robotic arm with convenient gripper replacement. This patent document uses an adjustment component to drive a rotating rod, causing a horizontal plate at the top of the rod to rotate synchronously. This, in conjunction with two horizontal plates rotating on the first horizontal plate, facilitates the synchronous opposite movement of sliding plates slidably mounted inside a fixed housing. This movement causes the two sliding plates to move away from each other, separating the interlocking limiting strips from the limiting grooves at the clamping block, facilitating the disassembly of the material-retrieving box and the internal grippers. Upon spring return, the two sliding plates move closer together, interlocking the limiting strips with the limiting grooves, enabling the installation of the material-retrieving box and grippers. This allows workers to quickly disassemble or replace the material-retrieving fixture, improving work efficiency and ease of use. However, the gripper in the aforementioned patent document lacks a positional feeding function; the gripper must be fully moved to the injection part position before it can be gripped, making it unsuitable for smaller part-retrieving spaces. Utility Model Content

[0004] The purpose of this invention is to provide a novel robotic arm for picking up parts in injection molding machines that facilitates the replacement of grippers, thus solving the problems mentioned in the background art.

[0005] This application provides a novel injection molding machine part-retrieving robotic arm with a convenient gripper replacement, including a base. A support rod 1 is mounted on the top of the base. A support rod 2 is rotatably mounted on the upper end of the support rod 1. A support rod 3 is rotatably mounted on one end of the support rod 2. A mounting rod is fixedly connected to the lower end of the support rod 3. An electric cylinder 3 is fixedly mounted on the bottom of the mounting rod, and a gripper assembly is located below the mounting rod. A connector is fixedly mounted on the output end of the electric cylinder 3, and a toothed plate is fixedly mounted on the bottom of the connector. The gripper assembly includes a gripper plate, two L-shaped rods, two connecting shafts 1 and 2. The two connecting shafts 1 and 2 are rotatably mounted on both sides of the front of the gripper plate. A gear and a connecting rod 1 are sleeved and fixedly mounted on the connecting shaft 1, and the gear is adapted to the toothed plate. A connecting rod 2 is sleeved and fixedly mounted on the connecting shaft 2. The connecting rods 1 and 2 are rotatably connected to the L-shaped rods, and a clamping member is fixedly connected to one end of the L-shaped rod.

[0006] Optionally, uprights are symmetrically fixedly connected to both sides of the bottom of the mounting rod, and a threaded shaft is fixedly connected to the bottom of the uprights. An internal threaded sleeve is fitted on the threaded shaft. Connecting ears are symmetrically fixedly connected to the upper part of both sides of the gripper plate, and a threaded shaft is fixedly connected to the top of the connecting ears. Both the threaded shaft and the threaded shaft are compatible with the internal threaded sleeve.

[0007] Optionally, a servo motor is fixedly installed inside the base. The output end of the servo motor is fixedly installed to the bottom of the support rod one. A U-shaped component one is fixedly connected to one side of the support rod one. A U-shaped component two and a U-shaped component three are fixedly connected to the bottom of the support rod two. A U-shaped component four is fixedly connected to one side of the support rod three. An electric cylinder one is rotatably installed between the U-shaped component one and the U-shaped component two. An electric cylinder two is rotatably installed between the U-shaped component three and the U-shaped component four.

[0008] Optionally, a matching rubber pad is fixedly connected to the inner wall of the clamping member.

[0009] Optionally, positioning grooves are provided on opposite sides of the two columns, and an L-shaped piece matching the positioning groove is fixedly connected to one side of the connecting ear.

[0010] Optionally, four mounting ears are fixedly connected at equal intervals to the outer wall of the lower part of the base, and the mounting ears are provided with mounting holes.

[0011] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0012] The technical solution of this application achieves the position feeding function during the part removal process of the injection molding machine by using a gripper assembly consisting of a gripper plate, an L-shaped rod, a connecting shaft one, a connecting shaft two, a gear, a connecting rod one, a connecting rod two, a clamping part, and a rubber pad, in conjunction with an electric cylinder three, a connecting part, and a toothed plate. This eliminates the need to move the clamping part to the injection part position and is suitable for some smaller part removal spaces.

[0013] The technical solution of this application facilitates the installation and disassembly of the gripper assembly through the use of columns, positioning grooves, connecting ears, L-shaped parts, threaded shaft one, threaded shaft two, and internal threaded sleeves, making it easy to replace the gripper assembly and providing flexible and convenient use. Furthermore, through the coordinated use of servo motors, support rod one, support rod two, support rod three, U-shaped parts one, U-shaped parts two, U-shaped parts three, U-shaped parts four, electric cylinder one, and electric cylinder two, the position of the gripper assembly can be flexibly adjusted to ensure the accuracy of picking up parts from the injection molding machine. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the mounting rod and gripper assembly of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0019] In the diagram: 1. Base; 2. Support rod one; 3. Support rod two; 4. Support rod three; 5. Mounting rod; 6. Grip assembly; 61. Grip plate; 62. L-shaped rod; 63. Connecting shaft one; 64. Connecting shaft two; 65. Gear; 66. Connecting rod one; 67. Connecting rod two; 68. Clamping component; 69. Rubber pad; 7. Toothed plate; 8. U-shaped component one; 9. U-shaped component two; 10. U-shaped component three; 11. U-shaped component four; 12. Electric cylinder one; 13. Electric cylinder two; 14. Servo motor; 15. Mounting ear; 16. Mounting hole; 17. Electric cylinder three; 18. Connecting component; 19. Column; 20. Connecting ear; 21. Threaded shaft one; 22. Internal threaded sleeve; 23. Threaded shaft two; 24. L-shaped component; 25. Positioning groove. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Please see Figure 1-3 This utility model provides a novel injection molding machine part-retrieving robotic arm with a convenient gripper replacement, including a base 1. A support rod 2 is mounted on the top of the base 1. A support rod 3 is rotatably mounted on the upper end of the support rod 2. A support rod 4 is rotatably mounted on one end of the support rod 3. A mounting rod 5 is fixedly connected to the lower end of the support rod 4. An electric cylinder 17 is fixedly mounted on the bottom of the mounting rod 5, and a gripper assembly 6 is located below the mounting rod 5. A connector 18 is fixedly mounted on the output end of the electric cylinder 17, and a toothed plate 7 is fixedly mounted on the bottom of the connector 18. The gripper assembly 6 includes a gripper plate 61, two L-shaped rods 62, two connecting shafts 63 and two connecting shafts 64. The two connecting shafts 63 and two connecting shafts 64 are rotatably mounted on both sides of the front of the gripper plate 61. A gear 65 and a connecting rod 66 are sleeved and fixedly mounted on the connecting shaft 63, and the gear 65 is adapted to the toothed plate 7. A connecting rod 67 is sleeved and fixedly mounted on the connecting shaft 64. The connecting rods 66 and 67 are rotatably connected to the L-shaped rods 62, and a clamping member 68 is fixedly connected to one end of the L-shaped rod 62.

[0022] In this technical solution, the toothed plate 7 is moved vertically by the electric cylinder 17 and the connecting piece 18. The toothed plate 7 drives the two connecting shafts 63 to rotate in opposite directions through the two gears 65. Since the L-shaped rod 62 is rotatably connected to the connecting rod 66 and the connecting rod 67, the two L-shaped rods 62 can be driven to move in opposite directions along the arc direction, thereby driving the two clamping pieces 68 to move in opposite directions along the arc direction. This realizes the position feeding function in the process of picking up parts from the injection molding machine without having to move the clamping pieces 68 to the injection part position, which is suitable for some smaller picking spaces.

[0023] In some technical solutions, such as Figure 1-2 As shown, uprights 19 are symmetrically fixedly connected to both sides of the bottom of the mounting rod 5. Threaded shaft 1 21 is fixedly connected to the bottom of the uprights 19. An internal threaded sleeve 22 is fitted onto the threaded shaft 1 21. Connecting ears 20 are symmetrically fixedly connected to the upper part of both sides of the gripper plate 61. Threaded shaft 23 is fixedly connected to the top of the connecting ears 20. Threaded shaft 1 21 and threaded shaft 23 are both compatible with the internal threaded sleeve 22.

[0024] In use, the gripper assembly 6 can be installed by aligning the threaded shaft 23 with the corresponding threaded shaft 21, and then rotating a part of the internal threaded sleeve 22 onto the threaded shaft 23. This makes it easy to replace the gripper assembly 6 and provides flexible and convenient use.

[0025] In some technical solutions, such as Figure 1 As shown, a servo motor 14 is fixedly installed inside the base 1. The output end of the servo motor 14 is fixedly installed at the bottom of the support rod 1 2. A U-shaped part 1 8 is fixedly connected to one side of the support rod 1 2. A U-shaped part 2 9 and a U-shaped part 3 10 are fixedly connected to the bottom of the support rod 2 3. A U-shaped part 4 11 is fixedly connected to one side of the support rod 3 4. An electric cylinder 12 is rotatably installed between the U-shaped part 1 8 and the U-shaped part 2 9. An electric cylinder 2 13 is rotatably installed between the U-shaped part 3 10 and the U-shaped part 4 11.

[0026] In use, the servo motor 14 drives the support rod 2 to rotate. The electric cylinder 12, which is rotatably installed between the U-shaped part 8 and the U-shaped part 9, can adjust the angle between the support rod 2 and the support rod 3. The electric cylinder 13, which is rotatably installed between the U-shaped part 3 and the U-shaped part 4, can adjust the angle between the support rod 3 and the support rod 4. Thus, the position of the gripper assembly 6 can be flexibly adjusted to ensure the accuracy of picking up parts from the injection molding machine.

[0027] In some technical solutions, such as Figure 3 As shown, a matching rubber pad 69 is fixedly connected to the inner wall of the clamping member 68.

[0028] When in use, the rubber pad 69 reduces the squeezing of the injection molded part during the clamping process.

[0029] In some technical solutions, such as Figure 2 and Figure 4 As shown, positioning grooves 25 are provided on opposite sides of the two columns 19, and an L-shaped piece 24 that matches the positioning groove 25 is fixedly connected to one side of the connecting ear 20.

[0030] During use, the L-shaped part 24 and the positioning groove 25 limit each other to ensure the accuracy of the gripper assembly 6 installation.

[0031] In some technical solutions, such as Figure 1 As shown, four mounting ears 15 are fixedly connected at equal intervals to the outer wall of the lower part of the base 1, and mounting holes 16 are provided on the mounting ears 15.

[0032] In use, the robotic arm can be easily mounted on the work platform of the injection molding machine through the mounting hole 16 on the mounting ear 15.

[0033] Working principle: During installation, align threaded shaft 23 with the corresponding threaded shaft 21, so that the top of L-shaped part 24 enters the positioning groove 25. Then, rotate a portion of the internal threaded sleeve 22 onto threaded shaft 23 to complete the installation of gripper assembly 6. During use, servo motor 14 drives support rod 2 to rotate. Electric cylinder 12, which is rotatably mounted between U-shaped part 8 and U-shaped part 9, can adjust the angle between support rod 2 and support rod 3. Electric cylinder 13, which is rotatably mounted between U-shaped part 3 10 and U-shaped part 4 11, can adjust the angle between support rod 2 and support rod 3. The angle between the second support rod 3 and the third support rod 4 can be adjusted so that the position of the gripper assembly 6 can be flexibly adjusted. The electric cylinder 17 drives the toothed plate 7 to move vertically through the connecting piece 18. The toothed plate 7 drives the two connecting shafts 63 to rotate in opposite directions through the two gears 65. Since the L-shaped rod 62 is rotatably connected to the first connecting rod 66 and the second connecting rod 67, it can drive the two L-shaped rods 62 to move in opposite directions along the arc direction, thereby driving the two clamping pieces 68 to move in opposite directions along the arc direction, realizing the position feeding function in the process of picking up parts from the injection molding machine.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application 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 this application should be included within the protection scope of this application.

Claims

1. A novel injection molding machine part-retrieving robotic arm with a convenient gripper replacement, comprising a base (1), characterized in that: The base (1) is provided with a support rod 1 (2) at the top. A support rod 2 (3) is rotatably installed at the upper end of the support rod 1 (2). A support rod 3 (4) is rotatably installed at one end of the support rod 2 (3). An installation rod (5) is fixedly connected to the lower end of the support rod 3 (4). An electric cylinder 3 (17) is fixedly installed at the bottom of the installation rod (5). A gripper assembly (6) is provided below the installation rod (5). A connector (18) is fixedly installed at the output end of the electric cylinder 3 (17). A toothed plate (7) is fixedly installed at the bottom of the connector (18). The gripper assembly (6) includes a gripper plate (61). Two L-shaped rods (62), two connecting shafts one (63) and two connecting shafts two (64), the two connecting shafts one (63) and the two connecting shafts two (64) are rotatably installed on both sides of the front part of the gripper plate (61). A gear (65) and a connecting rod one (66) are sleeved and fixedly installed on the connecting shaft one (63), and the gear (65) is adapted to the toothed plate (7). A connecting rod two (67) is sleeved and fixedly installed on the connecting shaft two (64). The connecting rod one (66) and the connecting rod two (67) are rotatably connected to the L-shaped rods (62), and a clamping member (68) is fixedly connected to one end of the L-shaped rod (62).

2. The novel injection molding machine part-removing robotic arm with a convenient gripper replacement according to claim 1, characterized in that, The bottom of the mounting rod (5) is symmetrically fixedly connected to two columns (19). The bottom of the column (19) is fixedly connected to a threaded shaft (21). An internal threaded sleeve (22) is fitted on the threaded shaft (21). The upper part of both sides of the gripper plate (61) is symmetrically fixedly connected to connecting ears (20). The top of the connecting ears (20) is fixedly connected to a threaded shaft (23). The threaded shaft (21) and the threaded shaft (23) are both compatible with the internal threaded sleeve (22).

3. A novel injection molding machine part-retrieving robotic arm with a convenient gripper replacement according to claim 1, characterized in that, A servo motor (14) is fixedly installed inside the base (1). The output end of the servo motor (14) is fixedly installed at the bottom of the support rod (2). A U-shaped part (8) is fixedly connected to one side of the support rod (2). A U-shaped part (9) and a U-shaped part (10) are fixedly connected to the bottom of the support rod (3). A U-shaped part (11) is fixedly connected to one side of the support rod (4). An electric cylinder (12) is rotatably installed between the U-shaped part (8) and the U-shaped part (9). An electric cylinder (13) is rotatably installed between the U-shaped part (10) and the U-shaped part (11).

4. A novel injection molding machine part-removing robotic arm with a convenient gripper replacement according to claim 1, characterized in that, The inner wall of the clamp (68) is fixedly connected with a matching rubber pad (69).

5. A novel injection molding machine part-retrieving robotic arm with a convenient gripper replacement according to claim 2, characterized in that, The two columns (19) are provided with positioning grooves (25) on opposite sides, and an L-shaped piece (24) matching the positioning groove (25) is fixedly connected to one side of the connecting ear (20).

6. A novel injection molding machine part-retrieving robotic arm with a conveniently replaceable gripper, as described in claim 1, is characterized in that... The base (1) has four mounting ears (15) fixedly connected at equal intervals on the outer wall of the lower part, and the mounting ears (15) have mounting holes (16).

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