Novel vacuum chuck
By designing a reasonable vacuum suction cup structure, using alumina ceramic material and a partitioned ventilation groove design, the problems of air leakage and uneven suction force when processing robotic arms of different shapes are solved, thereby improving processing efficiency and the wear resistance of the suction cup.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KEY MATERIALS TECH
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-17
AI Technical Summary
Existing vacuum suction cups are prone to air leakage or uneven suction force when processing robotic arms of different shapes. In addition, vacuum suction cups made of metal have poor wear resistance and short service life.
The system employs a superimposed, fixed, and sealed top cover and base. The base is connected to an air pump via a pipeline. The top cover has ventilation holes, and the base has corresponding ventilation grooves. The air pump uses the ventilation holes and ventilation grooves to adsorb and fix the workpiece. The ventilation grooves are divided into deep grooves and shallow grooves, with a reasonable design to accommodate workpieces of different shapes. The base and top cover are made of alumina ceramic material to improve wear resistance.
It achieves stable adsorption of workpieces, avoids problems such as air leakage and uneven adsorption force, improves processing efficiency and product quality, and extends the service life of the suction cup.
Smart Images

Figure CN224129549U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conductive ceramic robotic clamping and processing technology, specifically to a novel vacuum suction cup. Background Technology
[0002] Conductive ceramics are functional ceramic materials with special properties. They exhibit excellent electrical conductivity under normal conditions, comparable to that of metals, while also possessing inherent ceramic characteristics such as high strength, high hardness, high temperature resistance, corrosion resistance, and oxidation resistance. They are widely used in electronics, power, energy, sensors, and many other fields. For ceramic robotic arms, ordinary clamping methods using clamping plates and flat-jaw pliers cannot meet the requirements for machining outer contours and can easily lead to breakage of the robotic arm. High-temperature wax-coating clamping requires heating, which can cause some ceramic parts to deform due to heat. After dewaxing, the flatness and parallelism of the workpiece will decrease, compromising product quality. Therefore, vacuum chuck clamping is necessary for machining.
[0003] The existing vacuum suction cups have a horizontal and vertical array of suction holes. For robotic arms of different shapes, air leakage or uneven suction force is likely to occur during processing, which limits their use. In addition, the metal vacuum suction cup body has poor wear resistance and a short service life. Utility Model Content
[0004] The purpose of this utility model is to provide a novel vacuum suction cup to solve the above problems.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:
[0006] A top cover and a base with a fixed sealing configuration are stacked together, and one side of the base is connected to an air pump via a pipeline;
[0007] The upper cover has a vent hole, and the base has a corresponding vent groove. The air pump uses the vent hole and the vent groove to adsorb and fix the workpiece to be processed.
[0008] As a further description of the above technical solution, the top of the upper cover is symmetrically provided with a first positioning hole, and the top of the base is correspondingly provided with a second positioning hole.
[0009] As a further description of the above technical solution, the vent hole penetrates through the upper cover, and the orientation of the vent hole on the upper cover overlaps with the orientation of the vent groove on the base.
[0010] As a further description of the above technical solution, the ventilation groove includes a deep ventilation groove and a shallow ventilation groove, and the deep ventilation groove and the shallow ventilation groove are interconnected.
[0011] As a further description of the above technical solution, the deep ventilation groove is formed in the middle of the base, and the shallow ventilation groove is arranged around the deep ventilation groove.
[0012] As a further description of the above technical solution, the ventilation groove includes a first groove and a second groove, and multiple sets of the second groove are arranged in a ring around the center of gravity of the base.
[0013] As a further description of the above technical solution, the depth of the deep ventilation groove is twice the depth of the shallow ventilation groove.
[0014] As a further description of the above technical solution, the width of the venting groove is the same as the diameter of the first positioning hole and the second positioning hole.
[0015] As a further description of the above technical solution, an air extraction hole is provided on the side of the base, and an air extraction hose can be detachably installed in the air extraction hole.
[0016] As a further description of the above technical solution, the base is connected to an air pump via an air extraction hose, and the vent hole, the vent groove and the air extraction hole are connected to form an air extraction channel.
[0017] The beneficial effects of this utility model are as follows:
[0018] 1. In this utility model, the top cover and the base are fixed and sealed by overlapping with wax. The top cover has a vent hole and the base has a corresponding vent groove. The air pump adsorbs and fixes the workpiece to be processed through the vent hole and the vent groove. It can be adapted to different product outlines and surface features, and is suitable for processing batch parts. It can improve processing efficiency while ensuring product quality.
[0019] 2. In this utility model, the ventilation hole of the top cover is opened at a position that overlaps with the ventilation groove of the base. The ventilation groove is divided into a deep groove and a shallow groove, which can uniformly adapt to the shape contour of the part to be processed, thus solving the problems of easy air leakage and uneven adsorption force.
[0020] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the vacuum suction cup of this utility model;
[0022] Figure 2 This is an exploded schematic diagram of the vacuum suction cup of this utility model;
[0023] Figure 3 This is a top view of the vacuum suction cup of this utility model;
[0024] Figure 4yes Figure 3 Sectional view at point AA.
[0025] Figure label:
[0026] 1. Top cover; 11. Vent hole; 12. First positioning hole; 2. Base; 21. Vent groove; 211. Deep vent groove; 2111. First deep groove; 2112. Second deep groove; 212. Shallow vent groove; 22. Second positioning hole; 23. Air extraction hole; 3. Air extraction hose; 4. Workpiece to be processed. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0028] like Figures 1-4 As shown, in one embodiment, a novel vacuum suction cup includes: an upper cover 1 and a base 2 that are fixed and sealed by adhesive wax, and one side of the base 2 is connected to a vacuum pump through a pipeline. When the vacuum pump is running, the workpiece 4 to be processed can be adsorbed and fixed on the upper cover.
[0029] Understandably, by strictly controlling the flatness, parallelism, and roughness of the vacuum suction cup base 2 and the top cover 1, a perfect fit with the workpiece 4 to be processed can be guaranteed, further enhancing the adsorption stability and ensuring that the workpiece will not shift or loosen during processing, effectively guaranteeing product quality. Moreover, it can be adapted to different product outlines and surface characteristics, making it suitable for processing batches of parts and improving processing efficiency while ensuring product quality.
[0030] Specifically, the top of the upper cover 1 is symmetrically provided with a first positioning hole 12, and the top of the base 2 is correspondingly provided with a second positioning hole 22, which is used for positioning and alignment between the upper cover 1 and the base 2 to ensure that the two can be accurately overlapped, thus ensuring the sealing and consistent adsorption effect of the entire device.
[0031] It should be noted that both the base 2 and the top cover 1 are made of alumina ceramic. Compared with traditional metal materials, alumina ceramic is more wear-resistant, less prone to corrosion, and has a longer service life.
[0032] Furthermore, the upper cover 1 has a vent hole 11, and the base 2 has a corresponding vent groove 21. The air pump adsorbs and fixes the workpiece 4 to be processed through the vent hole 11 and the vent groove 21.
[0033] It is understandable that the vent 11 runs through the entire upper cover 1, and the opening position of the vent 11 on the upper cover 1 needs to correspond and overlap with the opening position of the vent groove 21 on the base 2, so that the gas flow is smooth during the air extraction process, and the suction force generated by the air pump can be used more effectively to improve the adsorption efficiency.
[0034] Please continue reading. Figures 1-4 In this embodiment, the ventilation groove 21 includes a deep ventilation groove 211 and a shallow ventilation groove 212, and the deep ventilation groove 211 and the shallow ventilation groove 212 are interconnected, so that the suction force generated by the air pump can be evenly distributed on the entire surface of the part. This ensures sufficient adsorption force and effectively avoids air leakage caused by unreasonable design of the shape or size of the ventilation groove 21, thereby ensuring the stability and uniformity of the adsorption force.
[0035] Specifically, the layout of the shallow ventilation groove 212 is similar to that of the robotic arm, but its range is smaller than the outer contour of the robotic arm; while the deep ventilation groove 211 can be a square groove or a key-shaped groove, and the depth of the deep ventilation groove 211 is twice the depth of the shallow ventilation groove 212; for example, the depth of the deep ventilation groove 211 is 6mm, while the depth of the shallow ventilation groove 212 is 3mm. Correspondingly, the width of the deep ventilation groove 211 is the same as the diameter of the first positioning hole 12 and the second positioning hole 22; for example, the width of the deep ventilation groove 211 and the diameter of both the first positioning hole 12 and the second positioning hole 22 are 2mm.
[0036] Furthermore, a deep ventilation groove 211 is formed in the middle of the base 2, while a shallow ventilation groove 212 is arranged around the deep ventilation groove 211. The deep ventilation groove 211 includes a first deep groove 2111 and a second deep groove 2112, and multiple sets of second deep grooves 2112 are arranged around the center of gravity of the base 2. This mutually cooperating structural design can better adapt to the outer contour of the workpiece 4 to be processed.
[0037] Furthermore, an air extraction hole 23 is provided on the side of the base 2, and an air extraction hose 3 can be detachably installed on the air extraction hole 23, thereby connecting the vent hole 11, the vent groove 21 and the air extraction hole 23 to form a complete air extraction channel. Specifically, the air extraction hole 23 is provided with a tapered pipe thread, and the position of the air extraction hole 23 is through the second deep groove 2112 at the center of gravity of the base 2.
[0038] Working principle: The top cover 1 and the base 2 are aligned and superimposed through the first positioning hole 12 and the second positioning hole 22, and then sealed and fixed with wax. One side of the base 2 is connected to the air pump through the air extraction hose 3, and the workpiece 4 to be processed is placed on the top of the top cover 1. Then the air pump is started. After the part is stably adsorbed on the top cover 1, the subsequent processing operation can be carried out. During the processing, due to the adsorption force, the part can maintain a fixed position and posture and will not be displaced or loosened due to vibration, impact or other factors during the processing, thereby ensuring processing accuracy and product quality.
[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A novel vacuum chuck, characterized by, include: A top cover (1) and a base (2) with a fixed sealing structure are stacked on top of each other, and one side of the base (2) is connected to an air pump through a pipeline; The upper cover (1) has a ventilation hole (11), and the base (2) has a corresponding ventilation groove (21). The air pump uses the ventilation hole (11) and the ventilation groove (21) to adsorb and fix the workpiece (4) to be processed.
2. The novel vacuum suction cup according to claim 1, characterized in that, The top of the cover (1) is symmetrically provided with a first positioning hole (12), and the top of the base (2) is correspondingly provided with a second positioning hole (22).
3. The novel vacuum chuck as claimed in claim 1, wherein The vent (11) penetrates the upper cover (1), and the orientation of the vent (11) on the upper cover (1) overlaps with the orientation of the vent groove (21) on the base (2).
4. The novel vacuum chuck as claimed in claim 1, wherein The ventilation groove (21) includes a deep ventilation groove (211) and a shallow ventilation groove (212), which are interconnected.
5. The novel vacuum chuck as claimed in claim 4, wherein The deep ventilation groove (211) is formed in the middle of the base (2), and the shallow ventilation groove (212) is arranged around the deep ventilation groove (211).
6. The novel vacuum chuck as claimed in claim 4, wherein The ventilation groove (211) includes a first groove (2111) and a second groove (2112), and multiple sets of the second grooves (2112) are arranged around the center of gravity of the base (2).
7. The novel vacuum chuck as claimed in claim 4, wherein The depth of the deep ventilation groove (211) is twice the depth of the shallow ventilation groove (212).
8. The novel vacuum chuck as claimed in claim 4, wherein The width of the ventilation groove (211) is the same as the diameter of the first positioning hole (12) and the second positioning hole (22).
9. The novel vacuum chuck as claimed in claim 1, wherein The base (2) has an air extraction hole (23) on its side, and an air extraction hose (3) can be detachably installed in the air extraction hole (23).
10. The novel vacuum chuck as claimed in claim 9, wherein The base (2) is connected to the air pump via the air extraction hose (3), and the air vent (11), the air vent (21) and the air extraction hole (23) are connected to form an air extraction channel.