Manipulator jig
By designing the hardware part picking and finished product picking mechanisms of the robotic jig, the problem of hardware part placement deviation in the mold was solved, achieving precise positioning of hardware parts and smooth removal of finished products, thereby improving the quality of injection molded products and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- IKKA TECH DONGGUAN CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing technology, hardware parts are prone to deviation when placed in the mold, resulting in poor quality of injection molded products, especially when dealing with small hardware parts with high positional requirements.
A robotic jig was designed, comprising a hardware part picking mechanism and a finished product picking mechanism. It utilizes components such as clamping cylinders, V-shaped chucks, guide pillars, and positioning pillars to ensure that the hardware parts are accurately placed in the mold. The finished product position is detected by suction cups and metal proximity switches to avoid deviation caused by improper operation.
It enables precise placement of hardware components, reduces the defect rate of injection molded products, improves production efficiency and product quality, and ensures smooth mold release of finished products.
Smart Images

Figure CN224255910U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of jig technology, and in particular relates to a robotic arm jig. Background Technology
[0002] In recent years, injection-molded products have been widely used in various industries. To enable products to have special mechanical joints or other functions, it is often necessary to embed hardware parts into molds and fix them through the injection molding process. However, deviations can easily occur during the placement of hardware parts into the mold, causing the already positioned hardware parts to shift, thus affecting the quality of the final injection-molded product. This problem is particularly prominent when handling small hardware parts with precise positioning requirements, such as ring-shaped hardware parts. The key to solving these problems lies in using a robotic jig that can simultaneously and accurately transport hardware parts, ensuring that each hardware part is accurately placed in its designated position within the mold.
[0003] In current injection molding processes, metal parts are placed directly into the mold manually or with the aid of a robotic arm. While this method meets certain needs, it still suffers from significant human error and limitations in robotic arm operation. Especially when the mold interior is confined or the metal parts have complex shapes, this direct placement method easily leads to deviations in the part's position, increasing the defect rate of the injection-molded product. Therefore, the industry has been exploring more precise and stable methods for positioning metal parts to improve the production efficiency and product quality of injection-molded products. Furthermore, after the injection molding process is complete, the finished product needs to be removed from the mold. Utility Model Content
[0004] The purpose of this utility model is to provide a robotic arm fixture, which aims to solve the technical problem in the prior art that the robotic arm can place all hardware parts on the mold at the same time, avoiding the impact of the robotic arm entering the mold multiple times on the accuracy of the position of the hardware parts in the mold.
[0005] To achieve the above objectives, this utility model provides a robotic arm fixture, including a hardware part picking mechanism, a finished product picking mechanism, and a connecting plate. The connecting plate connects to the robotic arm. Both the hardware part picking mechanism and the finished product picking mechanism are mounted on the connecting plate, with the hardware part picking mechanism positioned on one side of the finished product picking mechanism. The hardware part picking mechanism picks up hardware parts into a mold, and the finished product picking mechanism picks up finished products from the mold to the unloading area. The hardware part picking mechanism includes several clamping cylinders, each mounted on the connecting plate. Each clamping cylinder has two V-shaped grippers at its clamping end. The V-shaped grippers clamp the hardware parts, and the clamping cylinders drive the two V-shaped grippers to move closer or further apart. A guide post is also provided on the clamping cylinder, located between the two V-shaped grippers.
[0006] Furthermore, the hardware picking mechanism also includes several positioning posts, each positioned on the connecting plate, and each positioning post is used to position the hardware picking mechanism in the mold.
[0007] Furthermore, the hardware pickup mechanism also includes a pushing assembly, which comprises a fixed plate, a pushing plate, and a pushing cylinder. The fixed plate is connected to the connecting plate, and a gap is provided between the fixed plate and the connecting plate for placing the pushing cylinder and the clamping cylinder. The pushing plate is located below the fixed plate and is connected to the pushing cylinder, which pushes the pushing plate to move. Both the pushing plate and the fixed plate have several clearance holes for avoiding the V-shaped chucks and guide posts. The pushing plate also has reinforcing ribs for pushing the hardware held by the two V-shaped chucks.
[0008] Furthermore, the finished product picking mechanism includes a sprue clamp and several suction cups. The sprue clamp is set on the connecting plate, and each suction cup is symmetrically distributed on both sides of the sprue clamp and connected to the connecting plate. The sprue clamp is used to hold the sprue, and the suction cups are used to pick up the product.
[0009] Furthermore, the finished product picking mechanism also includes several metal proximity switches, each of which is connected to a connecting plate to detect whether the hardware parts on the finished product are in place.
[0010] The robotic jig provided in this embodiment of the present invention has at least one of the following technical effects: Connecting the connecting plate to the robotic arm, the robotic arm drives the hardware picking mechanism to approach the placed annular hardware component. A guide post is inserted into the hardware component for positioning. Then, a clamping cylinder drives V-shaped chucks to move closer together to clamp the hardware component, subsequently pulling it into the mold. The clamping cylinder then drives the V-shaped chucks to move away from each other to release the hardware component, placing the hardware component to be placed on the mold in one go, avoiding multiple placements that could affect the position of the hardware component already on the mold. After injection molding is completed, the robotic arm drives the finished product picking mechanism to pick up the finished product from the mold. The robotic jig provided by this invention ensures that the hardware component is accurately placed in the designated position within the mold and effectively avoids displacement of the hardware component due to improper operation during placement. After injection molding is completed, the finished product can be removed from the mold. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the structure of a robotic arm fixture provided in an embodiment of the present utility model.
[0013] Figure 2 This is a bottom view of a robotic arm fixture provided in an embodiment of the present utility model.
[0014] Reference numerals: 100, Hardware pickup mechanism; 110, Clamping cylinder; 111, V-shaped chuck; 112, Guide post; 120, Positioning post; 130, Pushing assembly; 131, Fixing plate; 132, Pushing plate; 133, Pushing cylinder; 134, Clearance hole; 135, Reinforcing rib; 200, Finished product pickup mechanism; 210, Sprue clamp; 220, Suction cup; 230, Metal proximity switch; 300, Connecting plate. Detailed Implementation
[0015] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.
[0016] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0018] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0019] In one embodiment of this utility model, reference is made to Figures 1-2 As shown, a robotic arm fixture is provided, including a hardware part picking mechanism 100, a finished product picking mechanism 200, and a connecting plate 300. The connecting plate 300 is used to connect the robotic arm. Both the hardware part picking mechanism 100 and the finished product picking mechanism 200 are disposed on the connecting plate 300, with the hardware part picking mechanism 100 disposed on one side of the finished product picking mechanism 200. The hardware part picking mechanism 100 is used to pick up hardware parts into the mold, and the finished product picking mechanism 200 is used to pick up finished products from the mold to the unloading point. The hardware picking mechanism 100 includes several clamping cylinders 110. Each clamping cylinder 110 is mounted on the connecting plate 300. The clamping end of the clamping cylinder 110 is provided with two V-shaped chucks 111. The V-shaped chucks 111 are used to clamp hardware. The clamping cylinder 110 is used to drive the two V-shaped chucks 111 to move closer or further apart. The clamping cylinder 110 is also provided with a guide post 112, which is located between the two V-shaped chucks 111. In this embodiment, the connecting plate 300 is connected to the robotic arm. The robotic arm drives the hardware picking mechanism 100 to approach the placed annular hardware. The guide post 112 is used to insert into the hardware for positioning. Then, the clamping cylinder 110 drives the V-shaped chucks 111 to move closer together to clamp the hardware, which then enters the mold. The clamping cylinder 110 then drives the V-shaped chucks 111 to move away from each other to release the hardware, placing the hardware to be placed on the mold in one go, avoiding multiple placements that affect the position of the hardware already on the mold. After the mold is injected, the robotic arm drives the finished product picking mechanism 200 to pick up the finished product from the mold. The robotic arm fixture provided by this utility model ensures that the hardware is accurately placed in the designated position in the mold and can also effectively avoid the displacement of the hardware caused by improper operation during the placement process. After the injection molding is completed, the finished product can be removed from the mold.
[0020] Specifically, refer to Figures 1-2 As shown, the hardware part picking mechanism 100 also includes several positioning posts 120, each positioning post 120 being distributed on the connecting plate 300. Each positioning post 120 is used to position the hardware part picking mechanism 100 within the mold. In this embodiment, each positioning post 120 is used to position the mold, facilitating the precise entry of the hardware part into the mold.
[0021] Specifically, refer to Figures 1-2As shown, the hardware pickup mechanism 100 also includes a pushing assembly 130, which includes a fixed plate 131, a push plate 132, and a pushing cylinder 133. The fixed plate 131 is connected to the connecting plate 300, and a gap is provided between the fixed plate 131 and the connecting plate 300 for placing the pushing cylinder 133 and the clamping cylinder 110. The push plate 132 is located below the fixed plate 131 and is connected to the pushing cylinder 133, which pushes the push plate 132 to move. Both the push plate 132 and the fixed plate 131 are provided with several clearance holes 134 for avoiding the V-shaped chucks 111 and the guide post 112. The push plate 132 is also provided with reinforcing ribs 135 for pushing the hardware held by the two V-shaped chucks 111. In this embodiment, when the hardware picking mechanism approaches the mold, the hardware needs to be unloaded. The clamping cylinder 110 drives the V-shaped chuck 111 to move away from each other. At this time, the push cylinder 133 drives the push plate 132 to move downward, avoiding the guide post 112 and the V-shaped chuck 111. The reinforcing rib 135 pushes the hardware to fall out of the guide post 112 and into the mold, avoiding the hardware from getting stuck on the guide post 112, which would cause unloading failure and affect the yield rate.
[0022] Specifically, refer to Figures 1-2 As shown, the finished product picking mechanism 200 includes a sprue clamp 210 and several suction cups 220. The sprue clamp 210 is mounted on the connecting plate 300, and the suction cups 220 are symmetrically distributed on both sides of the sprue clamp 210 and connected to the connecting plate 300. The sprue clamp 210 is used to hold the sprue, and the suction cups 220 are used to pick up the product. In this embodiment, the sprue clamp 210 is used to hold the sprue of the finished product, and the suction cups 220 are used to pick up the product to avoid scratching it, thereby removing the product from the mold.
[0023] Specifically, refer to Figures 1-2 As shown, the finished product picking mechanism 200 also includes several metal proximity switches 230, each connected to the connecting plate 300, used to detect whether the hardware parts on the finished product are in place. In this embodiment, each metal proximity switch 230 is used to detect whether the hardware parts on the finished product are in place.
[0024] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 robotic arm fixture, comprising a hardware part picking mechanism, a finished product picking mechanism, and a connecting plate; the connecting plate is used to connect the robotic arm, the hardware part picking mechanism and the finished product picking mechanism are both disposed on the connecting plate and the hardware part picking mechanism is disposed on one side of the finished product picking mechanism, the hardware part picking mechanism is used to pick up hardware parts into a mold, and the finished product picking mechanism is used to pick up finished products from the mold to the unloading point; characterized in that: The hardware picking mechanism includes several clamping cylinders, each of which is mounted on the connecting plate. Each clamping cylinder has two V-shaped chucks at its clamping end. The V-shaped chucks are used to clamp hardware. The clamping cylinder is used to drive the two V-shaped chucks to move closer or further apart. A guide post is also provided on the clamping cylinder, and the guide post is located between the two V-shaped chucks.
2. The robotic arm fixture according to claim 1, characterized in that: The hardware picking mechanism also includes several positioning posts, each of which is distributed on the connecting plate. Each of the positioning posts is used to position the hardware picking mechanism in the mold.
3. The robotic arm fixture according to claim 1, characterized in that: The hardware picking mechanism further includes a pushing assembly, which includes a fixed plate, a pushing plate, and a pushing cylinder. The fixed plate is connected to the connecting plate, and a gap is provided between the fixed plate and the connecting plate for placing the pushing cylinder and the clamping cylinder. The pushing plate is located below the fixed plate and is connected to the pushing cylinder, which pushes the pushing plate to move. Both the pushing plate and the fixed plate are provided with several clearance holes for avoiding the V-shaped chucks and the guide post. The pushing plate is also provided with reinforcing ribs for pushing the hardware held by the two V-shaped chucks.
4. The robotic arm fixture according to claim 1, characterized in that: The finished product picking mechanism includes a sprue clamp and several suction cups. The sprue clamp is disposed on the connecting plate, and each suction cup is symmetrically distributed on both sides of the sprue clamp and connected to the connecting plate. The sprue clamp is used to hold the sprue, and the suction cups are used to pick up the product.
5. A robotic arm fixture according to claim 1, characterized in that: The finished product picking mechanism also includes several metal proximity switches, each of which is connected to the connecting plate and is used to detect whether the hardware parts on the finished product are in place.