Sheet thickness uniformity detection chuck
By setting an annular negative pressure groove on the substrate and cooperating with a vacuum pump, the problem of unstable adhesive strip fixation was solved, achieving both accuracy and cost-effectiveness in thin plate thickness detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 沈阳睿昇精密制造有限公司
- Filing Date
- 2025-04-17
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, the use of adhesive strips for fixing thin plates during thickness testing is unstable and affected by changes in temperature and humidity, leading to inaccurate test results.
The system utilizes an annular first negative pressure groove and connecting holes on the substrate, which, in conjunction with a vacuum pump, adsorb and fix the thin plate, avoiding the use of tape and ensuring detection accuracy.
It achieves stable fixation of thin plates under temperature and humidity changes, improves detection accuracy, reduces tape material costs, simplifies the structure, and reduces production costs.
Smart Images
Figure CN224587836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum suction cups and related technologies, and in particular to a suction cup for detecting the uniformity of thin plate thickness. Background Technology
[0002] In the process of detecting the uniformity of the thickness of a thin plate, the thin plate is usually fixed on the testing station, and then light is shone on both sides of the thin plate in sequence. By monitoring the light reflected from the thin plate, its thickness uniformity can be determined.
[0003] In existing testing stations, adhesive strips are typically used to fix the thin plate structure to be tested. However, the physical and chemical properties of the adhesive strips are not stable enough. They will expand irregularly when exposed to water or heat, thus affecting the accuracy of the test results. Utility Model Content
[0004] The purpose of this invention is to provide a suction cup for detecting the uniformity of thin plate thickness, which can fix the thin plate structure without the need for adhesive strips.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A suction cup for detecting the uniformity of thin plate thickness, including:
[0007] The substrate has a first negative pressure groove, which is annular and has a connection hole at the bottom.
[0008] The vacuum pump has its adsorption end connected to the connection hole. When the thin plate is located on the outer periphery of the opening of the first negative pressure groove, the vacuum pump can adsorb the thin plate onto the substrate.
[0009] Preferably, the substrate is further provided with a second negative pressure groove, which is spaced apart from the outer periphery of the first negative pressure groove and is connected to the first negative pressure groove.
[0010] Preferably, the substrate is further provided with a third negative pressure groove, which is spaced apart from the inner periphery of the first negative pressure groove and is connected to the first negative pressure groove.
[0011] Preferably, the first negative pressure groove, the second negative pressure groove, and the third negative pressure groove are all rectangular.
[0012] Preferably, the substrate is further provided with an auxiliary groove, which is sequentially connected to the second negative pressure groove, the first negative pressure groove and the third negative pressure groove.
[0013] Preferably, there are two auxiliary grooves, which extend diagonally along the second negative pressure groove.
[0014] Preferably, the widths of the first negative pressure groove, the second negative pressure groove, the third negative pressure groove, and the two auxiliary grooves are all equal.
[0015] Preferably, the substrate is made of aluminum.
[0016] Preferably, the substrate has connection holes.
[0017] The beneficial effects of this utility model are:
[0018] The first negative pressure tank works in conjunction with the vacuum pump to adsorb the thin plate onto the substrate, ensuring that the thin plate neither approaches nor moves away from the substrate, nor slides along the substrate. This avoids the need to use tape to fix the thin plate structure, and the detection accuracy is not affected by changes in temperature and humidity. It also saves on tape material costs, while having a simple structure, low production cost, and is not easily damaged. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the substrate described in this utility model.
[0020] In the picture:
[0021] 1. Substrate; 11. First negative pressure groove; 110. Connecting hole; 12. Second negative pressure groove; 13. Third negative pressure groove; 14. Auxiliary groove; 15. Positioning hole. Detailed Implementation
[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or 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 utility model according to the specific circumstances.
[0024] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0026] like Figure 1 As shown, this utility model provides a suction cup for detecting the uniformity of thin plate thickness, used to fix the thin plate structure during the detection process. The suction cup includes a substrate 1 and a vacuum pump. The substrate 1 has a first negative pressure groove 11, which is annular, and a connecting hole 110 is formed at the bottom of the groove. The suction end of the vacuum pump is connected to the connecting hole 110. When the thin plate is located on the outer periphery of the opening of the first negative pressure groove 11, the vacuum pump can suction the thin plate onto the substrate 1.
[0027] The first negative pressure groove 11 works in conjunction with the vacuum pump to adsorb the thin plate onto the substrate 1, so that the thin plate will neither approach nor move away from the substrate 1, nor will it slide along the substrate 1. This avoids the need to use tape to fix the thin plate structure, and the detection accuracy will not be affected by changes in temperature and humidity. It saves on the material cost of tape, and at the same time, the structure is simple, the production cost is low, and it is not easily damaged.
[0028] It should be noted that this thin plate thickness uniformity detection suction cup is suitable for thin plate structures with a thickness of no more than 5 mm to ensure measurement accuracy.
[0029] Specifically, the substrate 1 is made of aluminum. In other embodiments, the substrate 1 may also be made of other materials commonly used in the art, and no specific limitation is made here.
[0030] Specifically, the substrate 1 also has a second negative pressure groove 12, which is spaced apart from the outer periphery of the first negative pressure groove 11 and connected to the first negative pressure groove 11. The provision of the second negative pressure groove 12 enables the thin plate thickness uniformity detection suction cup to ensure sufficient adhesion while also being suitable for slightly larger thin plate structures, thus exhibiting strong versatility.
[0031] Specifically, the substrate 1 also has a third negative pressure groove 13, which is spaced apart from the inner periphery of the first negative pressure groove 11 and connected to the first negative pressure groove 11. The aforementioned third negative pressure groove 13 enables the thin plate thickness uniformity detection suction cup to ensure sufficient adhesion while also being suitable for thin plate structures with slightly smaller dimensions, thus exhibiting strong versatility.
[0032] More specifically, the first negative pressure groove 11, the second negative pressure groove 12, and the third negative pressure groove 13 are all rectangular. This arrangement, when the thin plate structure to be adsorbed is rectangular, can increase the force-bearing area of the thin plate structure to a certain extent, resulting in a better adsorption effect.
[0033] In other embodiments, the first negative pressure groove 11, the second negative pressure groove 12 and the third negative pressure groove 13 can be consistent with the shape of the thin plate structure to be adsorbed in order to ensure the firmness of the adsorption.
[0034] More specifically, the substrate 1 is also provided with an auxiliary groove 14, which is sequentially connected to the second negative pressure groove 12, the first negative pressure groove 11, and the third negative pressure groove 13. The provision of the auxiliary groove 14 facilitates the gas flow between the first negative pressure groove 11, the second negative pressure groove 12, and the third negative pressure groove 13, thereby ensuring the adsorption effect.
[0035] For example, in this embodiment, two auxiliary grooves 14 are provided, extending diagonally along the second negative pressure groove 12. This arrangement ensures the firmness of the adsorption while making the stress on the thin plate structure more balanced.
[0036] More specifically, the widths of the first negative pressure groove 11, the second negative pressure groove 12, the third negative pressure groove 13, and the two auxiliary grooves 14 are all equal. This arrangement ensures that the gas flow rates in the first negative pressure groove 11, the second negative pressure groove 12, the third negative pressure groove 13, and the two auxiliary grooves 14 are equal, guaranteeing consistent gas pressure within the grooves and preventing any impact on the stress distribution of the thin plate structure, thereby ensuring detection accuracy.
[0037] Specifically, a positioning hole 15 is provided on the substrate 1. The positioning hole 15 facilitates fixing the substrate 1 to a robotic arm, robotic hand, or other working platform.
[0038] For example, in this embodiment, the specific form of the positioning hole 15 includes, but is not limited to, screw holes, insertion holes, etc., as long as it can fix the substrate 1.
[0039] For example, in this embodiment, the substrate 1 is rectangular, and four positioning holes 15 are provided. The positioning holes 15 are provided one-to-one at the four apex corners of the substrate 1 to ensure that the substrate 1 is subjected to balanced forces.
[0040] 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 list all possible implementations 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 sheet thickness uniformity detection chuck, characterized by, include: The substrate (1) has a first negative pressure groove (11), which is annular and has a connection hole (110) at the bottom. When the thin plate is located on the outer periphery of the opening of the first negative pressure groove (11), the vacuum pump can adsorb the thin plate onto the substrate (1). The substrate (1) is further provided with a second negative pressure groove (12), the second negative pressure groove (12) is spaced apart on the outer periphery of the first negative pressure groove (11), and the second negative pressure groove (12) is connected to the first negative pressure groove (11). The substrate (1) is also provided with a third negative pressure groove (13), which is spaced apart from the inner periphery of the first negative pressure groove (11) and is connected to the first negative pressure groove (11). The substrate (1) is also provided with an auxiliary groove (14), which is connected in sequence to the second negative pressure groove (12), the first negative pressure groove (11) and the third negative pressure groove (13).
2. The sheet thickness uniformity detecting chuck according to claim 1, wherein The first negative pressure groove (11), the second negative pressure groove (12) and the third negative pressure groove (13) are all rectangular.
3. The sheet thickness uniformity detecting chuck according to claim 1, wherein Two auxiliary grooves (14) are provided and extend along the diagonal of the second negative pressure groove (12).
4. The sheet thickness uniformity detecting chuck according to claim 1, wherein The widths of the first negative pressure groove (11), the second negative pressure groove (12), the third negative pressure groove (13), and the two auxiliary grooves (14) are all equal.
5. The sheet thickness uniformity detecting chuck according to any one of claims 1 to 4, wherein The substrate (1) is made of aluminum.
6. The sheet thickness uniformity detecting chuck according to any one of claims 1 to 4, wherein A positioning hole (15) is provided on the substrate (1).