A robot gripper for foundry production
By designing a flexible gripper and an elastic anti-slip layer, the problem of complex and easily damaged existing robot gripper structures has been solved, enabling efficient clamping of cylinder liners of different sizes to meet production needs and improving production efficiency and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN ZHONGYUAN ZHIXIN TECH CO
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
AI Technical Summary
Existing robotic grippers used in casting production have complex structures, high costs, are easily damaged, have short service lives, and require time-consuming and labor-intensive manual replacement. They also have poor versatility and are difficult to efficiently grip cylinder liner products of different sizes.
A robotic gripper was designed, comprising a cylinder, a hand gripper, and multiple claws. The claws are connected to the cylinder rod via a flexibly connected push rod. The claws can open to accommodate different inner hole sizes, and the outer surface is provided with an elastic anti-slip layer to improve stability.
The simplified gripper structure extends service life, reduces replacement frequency, improves production efficiency and versatility, and lowers production costs.
Smart Images
Figure CN224407618U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical gripper equipment technology, specifically relating to a robotic gripper for casting production. Background Technology
[0002] Robots are often used during the transfer of workpieces (products) in casting production. These robots use grippers to hold and fix the products before transferring them. However, existing robotic grippers suffer from problems such as complex structure, high cost, susceptibility to damage, and short lifespan. Furthermore, manually replacing grippers is time-consuming and labor-intensive, hindering efficient production. Additionally, the grippers have limited versatility in handling a wide range of objects. For example, in cylinder liner casting, robotic grippers are needed to remove the finished cylinder liner blanks from the casting mold. Due to increased cylinder liner production volume and significant variations in cylinder liner dimensions, frequent gripper replacements further increase production costs and reduce efficiency. Therefore, there is an urgent need for a robotic gripper for casting production that addresses these technical problems. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a robotic gripper for casting production, comprising a cylinder and a gripper. The gripper includes a connecting part and multiple claws. One end of the connecting part is connected to the cylinder sleeve of the cylinder. A channel I is provided at the center of the connecting part. The cylinder rod of the cylinder extends from the channel I and is connected to a push rod. One end of each claw is hinged to the end of the connecting part away from the cylinder. The claws are evenly distributed circumferentially along the connecting part. A channel II is formed between the claws to cooperate with the push rod. A cone is connected to the end of the push rod away from the cylinder. The diameter of the channel II is smaller than the maximum diameter of the cone.
[0004] It should be noted that during use, the jaws extend into the inner hole of the product to be clamped. As the cylinder rod extends, the push rod moves forward, and the cone enters channel two from channel one. As the push rod continues to move, it opens each jaw, meaning the jaws rotate around their hinge point with the connecting part. The open jaws then secure the product, allowing it to be moved. By adjusting the extension length of the push rod, the opening angle of the jaws can be adjusted, enabling clamping of products with different inner holes and expanding the range of applications.
[0005] Preferably, the cylinder rod is provided with a connecting block, and the push rod has a T-shaped groove at the end near the cylinder. The groove matches the cylinder rod and the connecting block. The push rod also has a baffle at the end near the cylinder, with a through hole at its center. The diameter of the through hole is larger than the diameter of the cylinder rod but smaller than the outer diameter of the connecting block. It should be noted that the connection between the push rod and the cylinder rod is flexible. During connection, the cylinder rod and the connecting block are first fixedly connected. Then, one end of the cylinder rod and the connecting block are inserted into the groove of the push rod. Finally, the baffle is fixed to the end face of the push rod. At this time, the baffle can seal the connecting block in the groove and prevent it from falling out, achieving a flexible connection between the push rod and the cylinder rod, reducing the lateral force on the cylinder rod, and thus improving the service life of the gripper.
[0006] Preferably, the connecting block is threaded to the cylinder rod and fixed by a set screw.
[0007] Preferably, the baffle is fixedly connected to the end face of the push rod by hexagonal bolts, and multiple hexagonal bolts are provided, which are evenly arranged along the circumference of the end face of the push rod.
[0008] Preferably, an elastic anti-slip layer is fixed to the outer surface of the gripper, and the elastic anti-slip layer has anti-slip texture. The elastic anti-slip layer can be a silicone layer or a wear-resistant rubber layer. The setting of the elastic anti-slip layer can reduce damage to the product surface, improve the clamping stability, and prevent the product from slipping off the gripper.
[0009] This invention also includes other components that enable the normal operation of a robotic gripper for casting production, such as a cylinder control component, which are all conventional technologies in the field. Furthermore, devices or components not specified in this invention, such as cylinders, set screws, and hexagonal bolts, all employ conventional technologies and equipment in the field.
[0010] Working principle: During use, the grippers extend into the inner hole of the product to be clamped. As the cylinder rod extends, the push rod moves forward, and the cone enters channel two from channel one. As the push rod continues to move, it opens each gripper, meaning the grippers rotate around their hinge point with the connecting part. The open grippers fix the product in place, thus moving the product. During use, because the connection between the push rod and the cylinder rod is flexible (specifically, the cylinder rod is first fixedly connected to the connecting block, then one end of the cylinder rod and the connecting block are inserted into the groove of the push rod, and finally the baffle is fixed to the end face of the push rod. At this time, the baffle can seal the connecting block in the groove and prevent it from falling out, achieving a flexible connection between the push rod and the cylinder rod), the lateral force on the cylinder rod is reduced, thereby extending the service life of the grippers.
[0011] This utility model has the following advantages: it has a simple structure, is practical and convenient, and can effectively clamp products. The cylinder rod and push rod are flexibly connected, which reduces the lateral force on the cylinder rod, extends the service life of the gripper, reduces the frequency of gripper replacement, and improves production efficiency. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a schematic diagram of the structure of a robot gripper for casting production in Embodiment 1 of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of a robot gripper for casting production in Embodiment 2 of this utility model;
[0015] Figure 3 for Figure 2 Schematic diagram of the connection between the push rod and the baffle;
[0016] Figure 4 for Figure 2 A schematic diagram showing the connection between the middle cylinder and the connecting block.
[0017] In the diagram: 1. Cylinder; 2. Cylinder rod; 3. Cone; 4. Claw; 5. Baffle; 6. Connecting block; 7. Hex bolt; 8. Connecting part; 9. Elastic anti-slip layer. Detailed Implementation
[0018] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.
[0019] Example 1
[0020] like Figure 1 As shown, this utility model provides a robotic gripper for casting production, including a cylinder 1 and a gripper. The gripper includes a connecting part 8 and multiple claws 4. One end of the connecting part 8 is connected to the cylinder sleeve of the cylinder 1 by a fixing bolt. The center of the connecting part 8 is provided with a channel 1. The cylinder rod 2 of the cylinder 1 extends out of the channel 1 and is connected to a push rod. One end of the multiple claws 4 is hinged to the end of the connecting part 8 away from the cylinder 1. The multiple claws 4 are evenly distributed around the circumference of the connecting part 8. The multiple claws 4 form a channel 2 that cooperates with the push rod. The end of the push rod away from the cylinder 1 is connected to a cone 3. The diameter of the channel 2 is smaller than the maximum diameter of the cone 3.
[0021] In use, the jaws 4 extend into the inner hole of the product to be clamped. When the cylinder rod 2 of cylinder 1 extends, the push rod moves forward, and the cone 3 enters channel two from channel one. As the push rod continues to move, it opens each jaw 4, that is, the jaw 4 rotates around its hinge point with the connecting part 8. The open jaws 4 fix the product, thus moving the product. In addition, by adjusting the extension length of the cylinder rod, the extension length of the push rod can be changed, and the opening angle of the jaws can be adjusted to clamp products with different inner holes, thereby increasing the range of applications.
[0022] An elastic anti-slip layer 9 is fixed to the outer surface of the jaw 4, and the elastic anti-slip layer 9 has anti-slip texture. The elastic anti-slip layer 9 can be a silicone layer or a wear-resistant rubber layer. The setting of the elastic anti-slip layer 9 can reduce damage to the product surface, improve the stability of clamping, and prevent the product from slipping off the jaw 4.
[0023] In this embodiment, the push rod and cone adopt an integrated structural design.
[0024] Example 2
[0025] like Figure 2-4 As shown, the difference between this embodiment and Embodiment 1 is that...
[0026] Preferably, the cylinder rod 2 is provided with a connecting block 6, and the end of the push rod near the cylinder 1 is provided with a T-shaped groove, which matches the cylinder rod 2 and the connecting block 6. The end of the push rod near the cylinder 1 is also provided with a baffle 5, and the center of the baffle 5 is provided with a through hole. The diameter of the through hole is larger than the diameter of the cylinder rod 2 and smaller than the outer diameter of the connecting block 6. It should be noted that the connection between the push rod and the cylinder rod 2 is a flexible connection. During connection, the cylinder rod 2 is first fixedly connected to the connecting block 6, then one end of the cylinder rod 2 and the connecting block 6 are inserted into the groove of the push rod, and finally the baffle 5 is fixed on the end face of the push rod. At this time, the baffle 5 can seal the connecting block 6 in the groove and prevent it from falling out, thus realizing the flexible connection between the push rod and the cylinder rod 2, reducing the lateral force on the cylinder rod 2 of the cylinder 1, thereby improving the service life of the gripper.
[0027] The connecting block 6 is threaded to the cylinder rod 2 and fixed by a set screw.
[0028] The baffle 5 is fixedly connected to the end face of the push rod by hexagonal bolts 7. Multiple hexagonal bolts 7 are provided and are evenly arranged along the circumference of the end face of the push rod.
[0029] During use, the grippers extend into the inner hole of the product to be clamped. As the cylinder rod extends, the push rod moves forward, and the cone enters channel two from channel one. As the push rod continues to move, it opens each gripper, meaning the grippers rotate around their hinge point with the connecting part. The open grippers secure the product, allowing the product to move. During use, because the connection between the push rod and the cylinder rod is flexible (specifically, the cylinder rod is first fixedly connected to the connecting block, then one end of the cylinder rod and the connecting block are inserted into the groove of the push rod, and finally the baffle is fixed to the end face of the push rod. At this time, the baffle can seal the connecting block in the groove and prevent it from falling out, achieving a flexible connection between the push rod and the cylinder rod), the lateral force on the cylinder rod is reduced, thereby extending the service life of the grippers.
[0030] The cylinders and other components involved in the above embodiments 1 and 2 are all existing technologies. This application does not make any improvements to them, but only utilizes their existing functions. For their specific structure and principle, please refer to the product manual or existing technical data, which are all existing technologies.
[0031] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A robotic gripper for casting production, comprising a cylinder and a hand gripper, characterized in that: The gripper includes a connecting part and multiple claws. One end of the connecting part is connected to the cylinder liner of the cylinder. The center of the connecting part has a channel one. The cylinder rod of the cylinder extends out from the channel one and is connected to a push rod. One end of each claw is hinged to the end of the connecting part away from the cylinder. The claws are evenly distributed around the circumference of the connecting part. The claws form a channel two that cooperates with the push rod. The end of the push rod away from the cylinder is connected to a cone. The diameter of the channel two is smaller than the maximum diameter of the cone.
2. The robotic gripper for casting production according to claim 1, characterized in that: The cylinder rod is provided with a connecting block, and the push rod has a T-shaped groove at one end near the cylinder. The groove matches the cylinder rod and the connecting block. The push rod also has a baffle at one end near the cylinder. The baffle has a through hole at its center. The diameter of the through hole is larger than the diameter of the cylinder rod and smaller than the outer diameter of the connecting block.
3. The robotic gripper for casting production according to claim 2, characterized in that: The connecting block is threaded to the cylinder rod and fixed by a set screw.
4. The robotic gripper for casting production according to claim 2, characterized in that: The baffle is fixedly connected to the end face of the push rod by hexagonal bolts. Multiple hexagonal bolts are provided and are evenly arranged around the end face of the push rod.
5. A robotic gripper for casting production according to claim 1, characterized in that: The outer surface of the claw is fixed with an elastic anti-slip layer, and the elastic anti-slip layer is provided with anti-slip texture.