High speed robot for picking up injection molded articles

Abstract

The utility model relates to the technical field of mechanical hand, and disclose a kind of high-speed mechanical hand of taking injection molding product, including mechanical hand pedestal, the inner wall one end of mechanical hand pedestal is fixed with safety grabbing mechanism, the safety grabbing mechanism includes cylinder frame, and one end of cylinder frame is fixed with limit rod, the center of limit rod is provided with limit slot, and the inner wall of limit slot is attached with limit stake, one end of limit rod is fixed with clamping plate seat, and the outer wall center of clamping plate seat is attached with rubber pad.The utility model is limited by limit rod cooperation limit slot and limit stake opened inside and is limited, when clamping plate seat is stretched to certain length along with limit rod, can be immediately stopped by cooperation limit slot contact limit stake, effectively avoid that grabbing strength is too big, and grabbing block can be cooperation elastic expansion of grabbing plate and clamping plate seat, realize the elastic buffer of grabbing process, reduce the influence to injection molding product, improve grabbing efficiency and quality, reduce injection molding product damage rate.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, specifically a high-speed robotic arm for picking up injection-molded products. Background Technology

[0002] Injection molding robots are used to remove the molded product and runner waste from the mold after injection molding. Because manual material handling was previously inefficient and dangerous, many manufacturers have begun using injection molding robots to handle finished product removal. In current injection molding processes, the robot typically removes the finished product and places it on a fixture for unloading, or directly on a conveyor belt, then manually or via a transfer mechanism, moves the finished product to a tray or fixture for unloading. Manual or transfer methods require a second operation and are less efficient; therefore, the use of robots in injection molding is becoming increasingly frequent.

[0003] Existing technology, such as the patent with publication number CN210525692U, discloses a material handling robot for injection molding machines to improve yield. It includes a fixed base with a protective sleeve fixedly mounted on it. A first driving device has a fixed work box, which is rotatably mounted with a threaded shaft. The threaded shaft is threaded with a connecting plate. The connecting plate is symmetrically mounted with lifting rods. Two lifting rods are fixedly mounted with fixed plates. The fixed plates are fixedly mounted with support seats. The support seats are symmetrically fitted with moving shafts. Two moving shafts are fixedly mounted with baffles. An electric telescopic rod is fixedly mounted between the baffles and the support seats. A clamping seat slidably mounts a clamping plate.

[0004] While the aforementioned existing technologies have significant beneficial effects, they still have shortcomings: The aforementioned robotic arm can protect the finished product after injection molding during the loading and unloading process by setting protective rubber and friction rubber, avoiding damage to the finished product due to improper operation and improving the yield rate. However, when gripping injection molded products, the high temperature of the injection molded products may cause the rubber material to deform due to long-term clamping, thereby affecting the subsequent gripping efficiency or even sticking the product, affecting the long-term stability of use. Therefore, a high-speed robotic arm for picking up injection molded products is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-speed robotic arm for picking up injection-molded products. It uses a limiting rod in conjunction with an internally opened limiting groove and a limiting post to limit the gripping force, effectively preventing excessive gripping force. The gripping block can work with the gripping plate to provide elastic buffering, reducing the impact on the injection-molded product and improving gripping efficiency and quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-speed robotic arm for picking up injection-molded products, comprising a robotic arm base, a safety gripping mechanism fixed to one end of the inner wall of the robotic arm base, the safety gripping mechanism comprising a cylinder frame, and a limit rod fixed to one end of the cylinder frame, a limit groove formed at the center of the limit rod, and a limit post fitting against the inner wall of the limit groove, a clamping plate fixed to one end of the limit rod, and a rubber pad fitting against the center of the outer wall of the clamping plate, guide rods passing through both sides of the rubber pad, springs sleeved around the outer walls of the guide rods, a gripping plate fixed to the other end of the guide rod, a gripping block fitting against the outer wall of the gripping plate, friction strips formed on the inner wall of the gripping block, and screws distributed at both ends of the gripping block.

[0007] Preferably, the bottom end of the cylinder frame is fixed to the bottom surface of the robot arm base, and the clamping plate seat and the limiting rod form a telescopic structure with the robot arm base through the cylinder frame.

[0008] Preferably, the limiting post is fixed to the bottom surface of the robot arm base, and the limiting rod slides with the limiting post through the limiting groove.

[0009] Preferably, the gripping plate forms an elastic telescopic structure with the clamping plate seat through the guide rod and spring, and the rubber pad is located between the gripping plate and the clamping plate seat.

[0010] Preferably, the gripping block is detachable from the gripping plate by screws, and the friction strips are distributed in an arc shape along the inner wall of the gripping block.

[0011] Preferably, the robotic arm base includes a base plate, and a cylinder seat is fixed to the top surface of one end of the base plate, a servo shaft is fixed to the bottom surface of the other end of the base plate, and a fixed gripping seat is fixed to the top surface of the other end of the base plate.

[0012] Preferably, the fixed gripping seat and the cylinder seat are fixedly connected to both ends of the base plate, and the cylinder seats are symmetrically distributed.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a limiting rod in conjunction with an internally designed limiting groove and a limiting post for limiting. When the clamping plate extends to a certain length with the limiting rod, it can contact the limiting post with the limiting groove and stop immediately, effectively preventing excessive gripping force. The gripping block can work with the elastic extension and retraction of the gripping plate and clamping plate to achieve elastic buffering during the gripping process, reducing the impact on the injection molded product, improving gripping efficiency and quality, and reducing the damage rate of injection molded products.

[0014] This high-speed robotic arm uses cylinder mounts and servo shafts fixed to the base plate to secure the cylinder frame, while maintaining stable axial rotation adjustment of the servo shaft. The fixed gripper also uses gripping blocks and screws for easy disassembly and replacement.

[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the bottom of the robotic arm base of this utility model; Figure 2 This is a three-dimensional structural diagram of the safety gripping mechanism of this utility model; Figure 3 This is an exploded view of the gripping plate of this utility model; Figure 4 This is a three-dimensional schematic diagram of the clamping plate seat of this utility model.

[0017] In the diagram: 1. Robotic arm base; 101. Base plate; 102. Cylinder seat; 103. Servo shaft; 104. Fixed gripper seat; 2. Safety gripping mechanism; 201. Cylinder frame; 202. Limiting rod; 203. Limiting groove; 204. Limiting post; 205. Clamping plate seat; 206. Rubber pad; 207. Guide rod; 208. Spring; 209. Gripping plate; 210. Gripping block; 211. Friction strip; 212. Screw. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This embodiment of a high-speed robotic arm for picking up injection molded products includes a robotic arm base 1. A safety gripping mechanism 2 is fixed to one end of the inner wall of the robotic arm base 1. The robotic arm base 1 includes a base plate 101, and a cylinder seat 102 is fixed to the top surface of one end of the base plate 101. A servo shaft 103 is fixed to the bottom surface of the other end of the base plate 101, and a fixed gripping seat 104 is fixed to the top surface of the other end of the base plate 101.

[0020] like Figure 1-4As shown, the high-speed robotic arm in this utility model is similar in structure to existing robotic arms, such as the loading and unloading robotic arm for injection molding machines with improved yield rate disclosed in CN210525692U. The main improvement of this utility model is that the limiting rod 202, in conjunction with the internally opened limiting groove 203 and limiting post 204, limits the gripping force, effectively preventing excessive gripping force. The gripping block 210 can work with the gripping plate 209 to provide elastic buffering, reducing the impact on the injection molded product and improving gripping efficiency and quality. In this utility model, the servo shaft 103 and cylinder frame 201 are both existing technologies. When the high-speed robotic arm is in use, the cylinder frame 201 can be fixed by the cylinder seat 102 fixed by the base plate 101. During installation, the base plate 101 is axially connected to the robotic arm part of the robotic arm through the servo shaft 103, and then driven to adjust the rotation gripping angle. The high-speed robotic arm can fix the cylinder frame 201 by the cylinder seat 102 and the servo shaft 103 fixed by the base plate 101 respectively, while maintaining the axial stable rotation adjustment of the servo shaft 103. The fixed gripping seat 104 is also fixed by gripping block 210 and screw 212, which is convenient for disassembly and replacement.

[0021] like Figure 2-4As shown, the safety gripping mechanism 2 includes a cylinder frame 201, and a limit rod 202 is fixed to one end of the cylinder frame 201. A limit groove 203 is formed in the center of the limit rod 202, and a limit post 204 is attached to the inner wall of the limit groove 203. A clamping plate seat 205 is fixed to one end of the limit rod 202, and a rubber pad 206 is attached to the center of the outer wall of the clamping plate seat 205. Guide rods 207 are inserted through both sides of the rubber pad 206, and springs are sleeved around the outer walls of the guide rods 207. 208. A gripping plate 209 is fixed to the other end of the guide rod 207. A gripping block 210 is attached to the outer wall of the gripping plate 209, and a friction strip 211 is provided on the inner wall of the gripping block 210. Screws 212 are distributed at both ends of the gripping block 210. During the operation of this robotic arm, the installed robotic arm drives this robotic arm to approach the injection molded product. At this time, the cylinder frame 201 drives the limit rod 202 to extend. The extended limit rod 202 follows the limit in the limit groove 203. The post 204 extends and limits the movement, while the clamping plate seat 205 fixed at the end of the limiting rod 202 extends to bring the gripping block 210 closer to the fixed gripping seat 104, forming a gripping process for the injection molded product. During the gripping process, the gripping block 210, upon contact, elastically contracts and adapts with the guide rod 207 and spring 208 connected to the gripping plate 209, maintaining a stable grip on the injection molded product before material transfer. The robotic arm is limited by the limiting rod 202 in conjunction with the internal limiting groove 203 and the limiting post 204. When the clamping plate seat 205 extends to a certain length with the limiting rod 202, it can contact the limiting post 204 with the limiting groove 203 and stop immediately, effectively avoiding excessive gripping force. The gripping block 210 can work with the elastic extension and contraction of the gripping plate 209 and the clamping plate seat 205 to achieve elastic buffering during the gripping process, reducing the impact on the injection molded product, improving gripping efficiency and quality, and reducing the damage rate of injection molded products.

[0022] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A high-speed robotic arm for picking up injection-molded products, comprising a robotic arm base (1), characterized in that, A safety gripping mechanism (2) is fixed to one end of the inner wall of the robotic arm base (1). The safety gripping mechanism (2) includes a cylinder frame (201), and a limit rod (202) is fixed to one end of the cylinder frame (201). A limit groove (203) is opened in the center of the limit rod (202), and a limit stake (204) is attached to the inner wall of the limit groove (203). A clamping plate seat (205) is fixed to one end of the limit rod (202), and the outer wall of the clamping plate seat (205) is attached to the outer wall of the clamping plate seat (205). A rubber pad (206) is attached to the center, and guide rods (207) are inserted through both sides of the rubber pad (206). Springs (208) are sleeved around the outer wall of the guide rods (207). A gripping plate (209) is fixed to the other end of the guide rods (207). A gripping block (210) is attached to the outer wall of the gripping plate (209), and friction strips (211) are provided on the inner wall of the gripping block (210). Screws (212) are distributed at both ends of the gripping block (210).

2. The high-speed robotic arm for picking up injection-molded products according to claim 1, characterized in that, The bottom end of the cylinder frame (201) is fixed to the bottom surface of the robot base (1), and the clamp seat (205) and the limiting rod (202) form a telescopic structure with the robot base (1) through the cylinder frame (201).

3. The high-speed robotic arm for picking up injection-molded products according to claim 1, characterized in that, The limiting stake (204) is fixed to the bottom surface of the robot base (1), and the limiting rod (202) slides with the limiting stake (204) through the limiting groove (203).

4. The high-speed robotic arm for picking up injection-molded products according to claim 1, characterized in that, The gripping plate (209) forms an elastic telescopic structure with the clamping plate seat (205) through the guide rod (207) and the spring (208), and the rubber pad (206) is located between the gripping plate (209) and the clamping plate seat (205).

5. A high-speed robotic arm for picking up injection-molded products according to claim 1, characterized in that, The gripping block (210) is connected to the gripping plate (209) by screws (212) to form a detachable structure, and the friction strips (211) are distributed in an arc along the inner wall of the gripping block (210).

6. A high-speed robotic arm for picking up injection-molded products according to claim 1, characterized in that, The robotic arm base (1) includes a base plate (101), and a cylinder seat (102) is fixed on the top surface of one end of the base plate (101), a servo shaft (103) is fixed on the bottom surface of the other end of the base plate (101), and a fixed gripping seat (104) is fixed on the top surface of the other end of the base plate (101).

7. A high-speed robotic arm for picking up injection-molded products according to claim 6, characterized in that, The fixed gripping seat (104) and the cylinder seat (102) are fixedly connected to both ends of the base plate (101), and the cylinder seats (102) are symmetrically distributed.

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