A high-efficiency film-absorbing fixture

Abstract

The present invention discloses a high-efficiency film suction fixture, including a sealing component, an adsorption component and a rebound component, the adsorption component and the rebound component are provided with an air suction shell on their exterior, the adsorption component is provided at the bottom of the rebound component, the sealing component is provided at the top of the rebound component, the adsorption component and the sealing component are connected through the rebound component, the cross-section of the rebound component is in the shape of a stepped column, a bolt is provided in the slot at one end of the rebound component, the bolt penetrates and connects to a limited connection plate, and one end of the limited plate is fixed in the slot of the rebound component through the bolt. The beneficial effect of the present invention is that because the bottom of the air suction shell is in the shape of a cone, the cone area of ​​the bottom surface matches the area of ​​the bottom surface of the adsorption component, which makes it easier to position and adsorb the film to be processed.

Description

Technical Field

[0001] The invention relates to the technical field of sensor diaphragm processing, in particular to a high-efficiency diaphragm absorbing fixture. Background Art

[0002] A sensor is a device that detects a specific medium and converts the properties of that medium into a readable value through an electrical signal. This type of sensor is also known as a transducer. The present invention relates to sensors for detecting various pressure ranges, especially low pressures in the range of several Pascals. Generally, there are three different transducer mechanisms for measuring pressure, such as piezoresistive, piezoelectric and capacitive. In general, the capacitive method has some advantages over other transducer mechanisms, especially in low pressure measurements. This is due to the percentage change in capacitance with pressure.

[0003] Capacitive pressure sensor is a pressure sensor that uses a capacitive sensitive element to convert the measured pressure into an electrical output that is in a certain relationship with it. The characteristics are low input energy, high dynamic response, small natural effect, and good environmental adaptability. It generally uses a circular metal film or a metal-plated film as an electrode of the capacitor. When the film is deformed by pressure, the capacitance formed between the film and the fixed electrode changes, and an electrical signal in a certain relationship with the voltage can be output through the measuring circuit. Capacitive pressure sensor belongs to the pole pitch variable capacitive sensor, which can be divided into a single capacitive pressure sensor and a differential capacitive pressure sensor. Among them, the differential capacitive pressure sensor, its pressurized diaphragm electrode is located between two fixed electrodes, forming two capacitors. Under the action of pressure, the capacity of one capacitor increases and the other decreases accordingly, and the measurement result is output by the differential circuit. Its fixed electrode is made by plating a metal layer on the concave glass surface. When overloaded, the diaphragm is protected by the concave surface and does not break. Differential capacitive pressure sensors have higher sensitivity and better linearity than single capacitive ones, but are more difficult to process (especially difficult to ensure symmetry). The sensor diaphragm is not easy to be accurately positioned or adsorbed during adsorption, and the inconvenient structure will also cause inconvenience in subsequent processing. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and to design a high-efficiency film absorbing sheet fixture.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is a high-efficiency film absorption fixture, comprising a sealing component, an adsorption component and a rebound component, wherein an air suction shell is arranged on the outside of the adsorption component and the rebound component, the adsorption component is arranged at the bottom of the rebound component, the sealing component is arranged at the top of the rebound component, the adsorption component and the sealing component are connected by the rebound component, the cross-section of the rebound component is in the shape of a stepped column, a bolt is arranged in the slot hole at one end of the rebound component, the bolt is passed through and connected to a limiting connecting plate, and one end of the limiting plate is fixed in the slot hole of the rebound component by the bolt.

[0006] As a further illustration of the present invention, the ends of the adsorption component are provided with movable slots, and the limiting connecting plates extend out of the movable slots on both sides of the adsorption component and are fixed on the air suction shell.

[0007] As a further illustration of the present invention, a fixed slot hole is provided on the air suction shell at a position corresponding to the movable slot hole, a bolt is provided on the fixed slot hole, and one end of the limit connecting plate extending out is connected to the bolt of the fixed slot hole.

[0008] As a further explanation of the present invention, the adsorption component is columnar as a whole, an air suction hole is arranged at the bottom of the adsorption component, an air suction interface is arranged at the side of the adsorption component, and the air suction interface fixed on the side of the adsorption component is provided with a ventilation pipe extending into the interior of the air suction component.

[0009] As a further illustration of the present invention, the air suction shell sleeved outside the adsorption component and the rebound component is cylindrical as a whole, and the bottom of the air suction shell is frustum-shaped, and the frustum area of ​​the bottom surface is adapted to the area of ​​the bottom surface of the adsorption component.

[0010] As a further illustration of the present invention, the air suction interface is L-shaped, and one end of the air suction interface extends out from a movable notch on one side of the air suction shell.

[0011] As a further illustration of the present invention, a return spring is arranged on the column head on the resilient component connected to the adsorption component, and a limiting cross bar is arranged on the column seat at the upper end of the column head.

[0012] As a further illustration of the present invention, the sealing component includes a rotary joint, and an air inlet and an air outlet are respectively provided at upper and lower positions on the side surface of the rotary joint.

[0013] As a further illustration of the present invention, a connecting line for connecting to a power source is provided on the top of the rotary joint.

[0014] Its beneficial effect lies in that the sealing property of the whole device is ensured by the sealing component, the adsorption component adsorbs the parts to be processed in the container groove at the bottom of the adsorption component by the suction principle, and when the device is pressed down as a whole to press the parts to be processed, after the work is completed, the rebound component plays the role of rebounding the device to the initial position after the device is moved up; the air pump device is connected through the suction interface, and the air pump device sucks air from the suction hole to fix the parts to be processed at the suction port; the limit connecting plate is movably installed, and when the rebound component is pressed down When pressure is applied, the column head of the rebound component moves downward, and this process compresses the spring. The limit connecting plate fixed by the bolt column will rotate around the bolt column as the rebound component is pressed downward. The extended end of the limit connecting plate is connected to the bolt column of the fixed slot, and the rotation angle is limited by the slot hole of the rebound component and the fixed slot hole, thereby achieving the control of the downward pressure distance of the column head of the rebound component. Because the bottom of the air suction shell is in a frustum shape, the frustum area of ​​the bottom surface is matched with the area of ​​the bottom surface of the adsorption component, which will make it easier to position and adsorb the diaphragm to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the present invention without the air suction shell;

[0017] Figure 3 It is a structural schematic diagram of the rebound component.

[0018] In the figure, 1. sealing component; 2. adsorption component; 3. rebound component; 4. air suction shell; 5. limit connecting plate; 6. movable slot; 7. fixed slot; 8. air suction hole; 9. air suction interface; 10. return spring; 11. limit cross bar; 12. rotary joint; 13. air inlet; 14. air outlet; 15. connecting line. DETAILED DESCRIPTION

[0019] Since the existing sensor membrane is not easy to be accurately positioned and adsorbed during adsorption, and the structure is not simple enough, which will cause inconvenience in subsequent processing, we have designed an efficient membrane adsorption fixture. The technical solution of the present invention will be described in detail according to the accompanying drawings.

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-3 shows a high-efficiency film suction fixture, comprising a sealing component 1, an adsorption component 2 and a rebound component 3, wherein the adsorption component 2 and the rebound component 3 are provided with an air suction shell 4 on their exteriors, the adsorption component 2 is arranged at the bottom of the rebound component 3, the sealing component 1 is arranged at the top of the rebound component 3, the adsorption component 2 and the sealing component 1 are connected via the rebound component 3, the cross-section of the rebound component 3 is in the shape of a stepped column, and the sealing component 1 is mainly used to ensure the sealing of the entire device, the adsorption component 2 adsorbs the parts to be processed in the container groove at the bottom of the adsorption component 2 through the suction principle, and when the device is pressed downward as a whole to press the parts to be processed together, after the work is completed, the rebound component 3 plays a role in rebounding the device to its initial position after the device is moved upward.

[0021] The end of the adsorption component 2 is provided with a movable slot 6, the limit connecting plate 5 extends out of the movable slots 6 on both sides of the adsorption component 2 and is fixed on the air suction shell 4, the air suction shell 4 is provided with a fixed slot 7 at the position corresponding to the movable slot 6, and the fixed slot 7 is provided with a bolt, and the slot at one end of the rebound component 3 is provided with a bolt, and the bolt penetrates and connects the limit connecting plate 5, and one end of the limit connecting plate 5 is fixed in the slot of the rebound component 3 through the bolt, wherein the limit connecting plate 5 is movably installed, and when the rebound component 3 is pressed down, the column head of the rebound component 3 moves downward, and this process compresses the spring, and the limit fixed by the bolt The positioning connecting plate 5 will rotate around the bolt column as the rebound component 3 is pressed down. The extended end of the limiting connecting plate 5 is connected to the bolt column of the fixed slot 7. The rotation angle is limited by the slot of the rebound component 3 and the fixed slot 7, so as to control the downward pressing distance of the column head of the rebound component 3. The adsorption component 2 is columnar as a whole. The bottom of the adsorption component 2 is provided with an air suction hole 8, and the side of the adsorption component 2 is provided with an air suction interface 9. The air suction interface 9 fixed on the side of the adsorption component 2 is provided with a ventilation pipe extending into the interior of the air suction component; the air pump device is connected through the air suction interface 9, and the air pump device sucks air into the air suction hole 8 to fix the parts to be processed at the air suction port.

[0022] The air suction shell 4 sleeved on the outside of the adsorption component 2 and the rebound component 3 is columnar as a whole, and the bottom of the air suction shell 4 is frustum-shaped, and the frustum area of ​​the bottom surface is adapted to the area of ​​the bottom surface of the adsorption component 2. The air suction interface 9 is L-shaped, and one end of the air suction interface 9 extends out from the movable groove on one side of the air suction shell 4. A return spring 10 is arranged on the column head connected to the adsorption component 2 on the rebound component 3. The return spring 10 enables the device to be provided with a limiting cross bar 11 on the column seat at the upper end of the column head. The sealing component 1 includes a rotary joint 12, and the side surfaces of the rotary joint 12 are respectively provided with an air inlet 13 and an air outlet 14 at upper and lower positions, and a connecting line 15 for connecting a power supply is arranged on the top of the rotary joint 12.

[0023] Working principle: It mainly ensures the sealing of the whole device through the sealing component 1, and the adsorption component 2 adsorbs the parts to be processed in the storage groove at the bottom of the adsorption component 2 through the suction principle. When the device is pressed down as a whole to press the parts to be processed, after the work is completed, the rebound component 3 plays the role of rebounding the device to the initial position after the device is moved up; the air pump device is connected through the suction interface 9, and the air pump device sucks air into the suction hole 8 to fix the parts to be processed at the suction port; the limiting connecting plate 5 is movably installed, and when the rebound component 3 is pressed down, the column head of the rebound component 3 moves downward, and this process will compress the spring, and the limiting connecting plate 5 fixed by the bolt column will rotate around the bolt column as the rebound component 3 is pressed down, and the protruding end of the limiting connecting plate 5 is connected to the bolt column of the fixed slot hole 7, and the rotation angle is limited by the movable slot hole 6 and the fixed slot hole 7 of the rebound component 3, thereby achieving the control of the downward pressure distance of the column head of the rebound component 3.

[0024] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A high-efficiency film absorbing fixture, characterized in that: The invention comprises a sealing component (1), an adsorption component (2) and a resilient component (3); an air suction shell (4) is arranged outside the adsorption component (2) and the resilient component (3); the adsorption component (2) is arranged at the bottom of the resilient component (3); the sealing component (1) is arranged at the top of the resilient component (3); the adsorption component (2) and the sealing component (1) are connected via the resilient component (3); the cross section of the resilient component (3) is in the shape of a stepped column; a bolt is arranged in a slot at one end of the resilient component (3); the bolt penetrates and is connected to a limiting connection plate (5); one end of the limiting connection plate (5) is fixed in the slot of the resilient component (3) via the bolt; The ends of the adsorption component (2) are provided with movable slots (6), and the limiting connecting plates (5) extend out of the movable slots (6) on both sides of the adsorption component (2) and are fixed on the air suction housing (4); The air suction housing (4) is provided with a fixed slot hole (7) at a position corresponding to the movable slot hole (6), the fixed slot hole (7) is provided with a bolt, and one end of the position-limiting connecting plate (5) extending out is connected to the bolt of the fixed slot hole (7); A return spring (10) is provided on the column head connected to the adsorption component (2) on the resilient component (3), and a limit cross bar (11) is provided on the column seat at the upper end of the column head; The sealing component (1) comprises a rotary joint (12), and the side of the rotary joint (12) is provided with an air inlet (13) and an air outlet (14) at upper and lower positions respectively; A connection line (15) for connecting to a power source is arranged on the top of the rotary joint (12).

2. The high-efficiency film absorbing sheet fixture according to claim 1 is characterized in that: The adsorption component (2) is columnar in shape as a whole, an air suction hole (8) is provided at the bottom of the adsorption component (2), an air suction interface (9) is provided at the side of the adsorption component (2), and the air suction interface (9) fixed on the side of the adsorption component (2) is provided with a ventilation pipe extending into the interior of the air suction component.

3. The high-efficiency film-absorbing sheet fixture according to claim 2 is characterized in that: The air suction shell (4) sleeved on the outside of the adsorption component (2) and the rebound component (3) is columnar in shape as a whole, and the bottom of the air suction shell (4) is truncated cone-shaped, and the area of ​​the truncated cone at the bottom surface matches the area of ​​the bottom surface of the adsorption component (2).

4. The high-efficiency film-absorbing sheet fixture according to claim 3 is characterized in that: The air suction interface (9) is L-shaped, and one end of the air suction interface (9) extends out from a movable notch on one side of the air suction shell (4).

Images