Capacitance film vacuum gauge diaphragm cutting and welding device and processing method
By designing a diaphragm cutting and welding device for capacitive film vacuum gauge, the difficulty of controlling pretension and welding stress during diaphragm tensioning and welding is solved, high-precision automated welding is achieved, and the overall performance and production efficiency of the product are improved.
Patent Information
- Application Number
- CN202311281325.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-28
- Publication Date
- 2025-03-28
AI Technical Summary
There is difficulty in controlling pretension and welding stress during the diaphragm tensioning and welding process, resulting in the product linear range, sensitivity and minimum detection limit, and the risk of poor welding is high.
A capacitor film vacuum gauge diaphragm cutting and welding device is designed, including a base, a drive assembly, a support frame, a compression assembly and a pre-tightening diaphragm. Through adjustable support frame and drive components, automatic tensioning and welding of the pre-tensioned diaphragm is achieved, reducing manual participation and improving welding accuracy.
Through the automated diaphragm tensioning and welding process, the device reduces welding stress concentration and variation, improves the overall product index and production efficiency, and reduces the risk of welding defects.
Smart Images
Figure CN119704693A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vacuum measurement technology, and in particular to a capacitance thin film vacuum gauge diaphragm cutting, welding device and processing method. Background Art
[0002] In the structure of the capacitance film vacuum gauge, the pressure-sensitive diaphragm is one of the most important components. Many properties of the sensor, such as sensitivity and linearity, are closely related to the pressure-sensitive diaphragm. The mechanical response characteristics of the pressure-sensitive diaphragm have an important influence on the output characteristics of the sensor. Usually, the film must be pre-tensioned before welding, and then welded and fixed to the upper and lower seats. It can be seen that tensioning and welding are crucial steps in the process. The control of the pre-tension of the pressure-sensitive diaphragm and the welding stress directly determines the linear range, sensitivity and minimum detection limit of the product. There is no effective technical solution yet.
[0003] In the prior art, the pressure-sensitive diaphragm is first tensioned, held for a certain period of time, taken out and placed in a jig to cut the shape, and then placed in the upper and lower seats for clamping and welding. The whole process has many quality control points, and the film is easily scratched during disassembly and assembly. During welding, welding fillers are used in the process. Since the material of the welding filler is different from that of the film, the risk of poor welding is increased, and the isotropic coefficient of variation of stress after welding is also increased, thereby affecting the overall indicators of the product. Summary of the invention
[0004] In view of this, the present application proposes a capacitance film vacuum gauge diaphragm cutting and welding device, comprising a base, a driving assembly, a support frame, a clamping assembly, and a pre-tensioned diaphragm; the clamping assembly is a cylindrical structure, the clamping assembly is mounted on the base through the support frame, and the clamping assembly is rotatably arranged on the support frame; the support frame has an axially adjustable stroke of the clamping assembly; the driving assembly is arranged on one side of the base, and the clamping assembly is transmission-connected to the driving assembly; the clamping assembly comprises an upper base and a lower base, and the pre-tensioned diaphragm is clamped between the upper base and the lower base; the driving assembly can drive the clamping assembly to clamp the pre-tensioned diaphragm.
[0005] In a possible implementation, the support frame includes an upper beam, a lower beam and a guide rod; the upper beam and the lower beam are respectively clamped from both ends of the clamping assembly to fix the clamping assembly; the guide rod is arranged along the axial direction of the clamping assembly, and the upper beam and the lower beam are fixed by the guide rod. The number of the guide rods is two, and the two guide rods are correspondingly arranged on the left and right sides of the upper beam and the lower beam.
[0006] In a possible implementation, the clamping assembly also includes an upper bearing assembly, an upper fixed seat, a lower bearing assembly and a lower fixed seat; the upper fixed seat is installed in the upper bearing assembly, and the two are arranged together at one end of the support frame; the upper base is connected to the upper fixed seat; the lower fixed seat is installed in the lower bearing assembly, and the two are arranged together at the other end of the support frame; the lower base is connected to the lower fixed seat.
[0007] In one possible implementation, the driving assembly includes a motor, a mounting assembly, a pinion assembly and a large gear assembly; the mounting assembly is arranged on one side of the support frame, the output end of the motor is axially connected to the pinion assembly, the large gear assembly is transmission-connected to the pinion assembly, the large gear assembly is axially connected to the clamping assembly, and the pinion assembly and the large gear assembly are both arranged in the mounting assembly.
[0008] In a possible implementation, it also includes a lock; the lock is arranged on the base, and a hook is fixedly arranged on the side wall of the guide rod; wherein the hook is in a "T"-shaped structure, the top horizontal line structure of the hook is fixedly connected to the side wall of the guide rod, and the bottom of the vertical line structure of the hook is a lock hook; the position of the lock corresponds to the position of the lock hook, and the support frame and the base are fixed by the matching lock and the lock hook.
[0009] In a possible implementation, the lower fixing seat is detachably connected to the lower base; specifically, a magnetic attraction member or a suction cup is installed in the lower fixing seat.
[0010] In a possible implementation, the guide rod is a screw rod, and the upper beam and the lower beam are fixed by screwing the guide rod. In a possible implementation, the large gear assembly also includes a large gear seat, an outer sealing ring, an axle seat, an inner sealing ring, an inner bracket and a large gear shaft; the large gear seat is screwed and fixed to one side of the support frame, the large gear seat is a square frame structure, the outer sealing ring is pressed into the large gear seat, the axle seat is an annular structure, the inner sealing ring is installed to the inner ring of the axle seat, the axle seat and the inner sealing ring are pressed into the outer sealing ring of the large gear seat together, the large gear shaft passes through the axle seat and the inner bracket, and is axially connected to the clamping assembly.
[0011] In a possible implementation, the angle of the upper surface of the base is adjustable; specifically, it also includes a wedge block; the inclined surface of the wedge block faces upward and has a preset inclination angle, and screw holes are provided on the inclined surface of the wedge block, and the base is screwed and installed on the inclined surface of the wedge block.
[0012] On the other hand, the present application also discloses a method for processing a diaphragm of a capacitance film vacuum gauge, using the capacitance film vacuum gauge diaphragm cutting described in any of the above-mentioned implementation methods, a welding device processes the pre-tightened diaphragm, the base and the support frame can be clamped and fixed, and the upper surface angle of the base is adjustable; comprising the following steps: installing the pre-tightened diaphragm in the middle of the clamping assembly; adjusting the axial stroke of the support frame in the clamping assembly so that the support frame clamps the clamping assembly until the pre-tightened diaphragm is in a tensioned state; installing the support frame and the clamping assembly together on the base, clamping and fixing the support frame on the base, and adjusting the upper surface angle of the base until the upper surface of the base is at a suitable film cutting angle; the driving assembly rotates, driving the clamping assembly and the pre-tightened diaphragm to rotate in the support frame; an automatic welding machine performs edge trimming of the pre-tightened diaphragm, and when cutting, leaves a preset length of reserved edge on the edge of the pre-tightened diaphragm; using the automatic welding machine to perform welding again, melting the preset length of reserved edge into the middle of the weld as filler.
[0013] The beneficial effects of the present application are as follows: by rotatably mounting the clamping assembly on the support frame and setting it as a whole on the base, the output end of the driving assembly fixed on one side of the base can drive the clamping assembly to rotate together in the support frame. When the device is used for film cutting and welding, the whole process reduces human participation, improves welding accuracy, and effectively reduces welding stress concentration and variation caused by different materials, thereby improving the overall indicators and production efficiency of the product.
[0014] Furthermore, the working process of the diaphragm cutting and welding device of the capacitance film vacuum gauge is as follows: adjust the axial stroke of the support frame in the clamping assembly so that the clamping assembly continuously clamps the pre-tightened diaphragm in the axial direction, and after the pre-tightened diaphragm is tensioned, keep the original tension during the welding process, and then put the support frame and the clamping assembly into the base as a whole, and drive the clamping assembly to rotate, thereby driving the clamping assembly and the pre-tightened diaphragm sandwiched therebetween to rotate together. The driving assembly rotates at a uniform speed and cooperates with the automatic welding machine to first complete the trimming process, and when cutting the diaphragm to a preset radial length, a preset margin is left in the raw material, that is, the edge of the diaphragm has a reserved edge. The welding process is performed again, and the reserved edge of the raw material is melted into the weld as a filler to ensure the welding of the same material of the parts. Thereby effectively reducing the welding stress concentration and variation caused by different materials throughout the process, reducing human participation, and improving welding accuracy.
[0015] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.
[0017] Figure 1 An exploded view showing a device for cutting and welding a diaphragm of a capacitance thin film vacuum gauge according to an embodiment of the present application;
[0018] Figure 2 A schematic diagram showing the three-dimensional structure of a capacitance thin film vacuum gauge diaphragm cutting and welding device according to an embodiment of the present application;
[0019] Figure 3 A schematic diagram of the three-dimensional structure of a wedge block according to an embodiment of the present application is shown. DETAILED DESCRIPTION
[0020] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.
[0021] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0023] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.
[0024] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.
[0025] Figure 1 An exploded view showing a device for cutting and welding a diaphragm of a capacitance thin film vacuum gauge according to an embodiment of the present application; Figure 2 A schematic diagram showing the three-dimensional structure of a capacitance thin film vacuum gauge diaphragm cutting and welding device according to an embodiment of the present application; Figure 3 A schematic diagram of the three-dimensional structure of a wedge block according to an embodiment of the present application is shown.
[0026] like Figure 1-Figure 3 As shown, the capacitance film vacuum gauge diaphragm cutting and welding device includes a base 23, a driving component 100, a support frame 200, a clamping component 300, and a pre-tightened diaphragm 7. The clamping component 300 is a columnar structure. The clamping component 300 is installed on the base 23 through the support frame 200, and the clamping component 300 is rotatably set on the support frame 200. The support frame 200 has an axially adjustable stroke of the clamping component 300. The driving component 100 is set on one side of the base 23. The clamping component 300 is transmission-connected to the driving component 100. The clamping component 300 has an upper base 8 and a lower base 6. The pre-tightened diaphragm 7 is clamped between the upper base 8 and the lower base 6. The driving component 100 can drive the clamping component 300 to clamp the pre-tightened diaphragm 7.
[0027] In this embodiment, the clamping assembly 300 is rotatably mounted on the support frame 200 and is integrally arranged on the base 23, and the output end of the driving assembly 100 fixed on one side of the base 23 can drive the clamping assembly 300 to rotate together in the support frame 200. When the device is used for film cutting and welding, the whole process reduces human participation, improves welding accuracy, and effectively reduces welding stress concentration and variation caused by different materials, thereby improving the overall indicators and production efficiency of the product.
[0028] Furthermore, the working process of the diaphragm cutting and welding device of the capacitance film vacuum gauge is as follows: adjust the axial stroke of the support frame 200 in the clamping assembly 300 so that the clamping assembly 300 continuously clamps the pre-tightened diaphragm 7 in the axial direction, and after the pre-tightened diaphragm 7 is tightened, it maintains the original tension during the welding process, and then the support frame 200 and the clamping assembly 300 are placed in the base 23 as a whole, and the clamping assembly 100 is rotated to drive the clamping assembly 300 and the pre-tightened diaphragm 7 sandwiched therebetween to rotate together. The driving assembly 100 rotates at a uniform speed to cooperate with the automatic welding machine, first completing the trimming process, and when cutting the diaphragm to a preset radial length, the raw material has a preset margin, that is, the edge of the diaphragm has a reserved edge. The welding process is carried out again, and the reserved edge of the raw material is melted into the weld as a filler to ensure the welding of the same material of the parts. Thereby effectively reducing the welding stress concentration and variation caused by different materials throughout the process, reducing human participation, and improving welding accuracy.
[0029] In one specific embodiment, the support frame 200 includes an upper beam 11, a lower beam 2 and a guide rod 1. The upper beam 11 and the lower beam 2 are respectively clamped from both ends of the clamping assembly 300 to fix the clamping assembly 300. The guide rod 1 is arranged along the axial direction of the clamping assembly 300. The upper beam 11 and the lower beam 2 are fixed by the guide rod 1. There are two guide rods 1, and the two guide rods 1 are correspondingly arranged on the left and right sides of the upper beam 11 and the lower beam 2.
[0030] In one specific embodiment, the clamping assembly 300 also includes an upper bearing assembly, an upper fixed seat 9, a lower bearing assembly and a lower fixed seat 5. The upper fixed seat 9 is installed in the upper bearing assembly, and the two are arranged together at one end of the support frame 200. The upper base 8 is connected to the upper fixed seat 9, and the lower fixed seat 5 is installed in the lower bearing assembly. The two are arranged together at the other end of the support frame 200, and the lower base 6 is connected to the lower fixed seat 5.
[0031] In one specific embodiment, the driving assembly 100 includes a motor 21, a mounting assembly, a pinion assembly, and a large gear assembly. The mounting assembly is arranged on one side of the support frame 200. The output end of the motor 21 is axially connected to the pinion assembly, the large gear assembly is transmission-connected to the pinion assembly, the large gear assembly is axially connected to the clamping assembly 300, and the pinion assembly and the large gear assembly are both arranged in the mounting assembly. The mounting assembly is a square frame structure with a square shape on the outside and a circular hole in the middle. One end face of the mounting assembly is mounted on one side of the base 23. The large gear assembly and the pinion assembly are both mounted in the circular hole of the mounting assembly. The motor 21 is fixed to the other end face of the mounting assembly, and the output shaft of the motor 21 is transmission-connected to the pinion in the pinion assembly.
[0032] In one of the specific embodiments, it also includes a lock buckle 24, which is arranged on the base 23, and a hook 25 is fixedly arranged on the side wall of the guide rod 1, wherein the hook 25 is a "T"-shaped structure, and the top horizontal line structure of the hook 25 is fixedly connected to the side wall of the guide rod 1, and the bottom of the vertical line structure of the hook 25 is the lock hook 25, and the position of the lock buckle 24 corresponds to the position of the lock hook 25, and the support frame 200 and the base 23 are fixed by the matching lock buckle 24 and lock hook 25.
[0033] In this embodiment, matching lock buckles 24 and lock hooks 25 are provided between the support frame 200 and the base 23. When the motor 21 drives the clamping assembly 300 to rotate, the support frame 200 is effectively limited to prevent the support frame 200 from rotating together with the clamping assembly 300, thereby avoiding situations that are not conducive to processing operations.
[0034] In one specific embodiment, the lower fixing seat 5 is detachably connected to the lower base 6 . Specifically, a magnetic attraction member or a suction cup is installed in the lower fixing seat 5 .
[0035] In one specific embodiment, the guide rod 1 is a screw rod, and the upper beam 11 and the lower beam 2 are screwed and fixed via the guide rod 1 .
[0036] In one specific embodiment, the large gear assembly also includes a large gear seat, an outer sealing ring, a shaft seat, an inner sealing ring, an inner bracket 12 and a large gear shaft. The large gear seat is screwed and fixed to one side of the support frame 200. The large gear seat is a square frame structure. The outer sealing ring is pressed into the large gear seat. The shaft seat is an annular structure. The inner sealing ring is installed to the inner ring of the shaft seat. The shaft seat and the inner sealing ring are pressed into the outer sealing ring of the large gear seat together. The large gear shaft passes through the shaft seat and the inner bracket 12, and is axially connected to the clamping assembly 300.
[0037] In one specific embodiment, the angle of the upper surface of the base 23 is adjustable. Specifically, it also includes a wedge block 26, the inclined surface of the wedge block 26 faces upward and has a preset inclination angle, and screw holes are provided on the inclined surface of the wedge block 26, and the base 23 is screwed and installed on the inclined surface of the wedge block 26.
[0038] In this embodiment, the wedge block 26 and the upper surface angle of the adjusting base 23 are provided mainly to facilitate the adjustment of the film cutting angle during the film cutting process.
[0039] The present application also discloses a method for processing a capacitance film vacuum gauge diaphragm, using the capacitance film vacuum gauge diaphragm cutting and welding device described in any of the above-mentioned implementation methods to process the pre-tightening diaphragm 7, the base 23 and the support frame 200 can be clamped and fixed, and the upper surface angle of the base 23 is adjustable; comprising the following steps: installing the pre-tightening diaphragm 7 in the middle of the clamping assembly; adjusting the axial stroke of the support frame 200 in the clamping assembly 300 so that the support frame 200 clamps the clamping assembly 300 until the pre-tightening diaphragm 7 is in a tensioned state; the support frame 200 and the The clamping assembly is installed on the base 23 together, the support frame 200 is clamped and fixed on the base 23, and the upper surface angle of the base 23 is adjusted until the upper surface of the base 23 is at a suitable film cutting angle; the driving assembly 100 rotates, driving the clamping assembly 300 and the pre-tightening diaphragm 7 to rotate in the support frame 200; the automatic welding machine performs the trimming work of the pre-tightening diaphragm 7, and when cutting, leaves a reserved edge of a preset length on the edge of the pre-tightening diaphragm 7; the automatic welding machine is used to perform welding again, and the reserved edge of the preset length is melted into the middle of the weld as a filler.
[0040] In one specific embodiment, a capacitance film vacuum gauge diaphragm cutting and welding device includes a base 23, a driving assembly 100, a support frame 200, a clamping assembly 300, and a pre-tightened diaphragm 7. The clamping assembly 300 is a columnar structure. The clamping assembly 300 is installed on the base 23 through the support frame 200, and the clamping assembly 300 is rotatably set on the support frame 200. The support frame 200 includes an upper beam 11, a lower beam 2 and a guide screw. The upper beam 11 and the lower beam 2 are screwed and fixed by a guide rod 1, and the upper beam 11 and the lower beam 2 are respectively clamped and fixed from both ends of the clamping assembly 300. The guide screw is arranged along the axial direction of the clamping assembly 300, and the distance between the upper beam 11 and the lower beam 2 is adjusted by the guide screw. The number of the guide screws is two, and the two guide rods 1 are correspondingly arranged on the left and right sides of the upper beam 11 and the lower beam 2. The driving assembly 100 is arranged at one side of the base 23, and the clamping assembly 300 is in transmission connection with the driving assembly 100. The clamping assembly 300 has an upper base 8 and a lower base 6, and the pre-tightening diaphragm 7 is clamped between the upper base 8 and the lower base 6. The driving assembly 100 can drive the clamping assembly 300 to clamp the pre-tightening diaphragm 7. The driving assembly 100 includes a motor 21, a mounting assembly, a pinion assembly and a large gear assembly. The mounting assembly is arranged at one side of the support frame 200, and the output end of the motor 21 is axially connected to the pinion assembly, and the large gear assembly is in transmission connection with the pinion assembly, and the large gear assembly is axially connected to the clamping assembly 300, and the pinion assembly and the large gear assembly are both arranged in the mounting assembly. The large gear assembly also includes a large gear seat, an outer sealing ring, an axle seat, an inner sealing ring, an inner bracket 12 and a large gear shaft. The large gear seat is screwed and fixed to one side of the support frame 200. The large gear seat is a square frame structure. The outer sealing ring is pressed into the large gear seat. The axle seat is an annular structure. The inner sealing ring is installed to the inner ring of the axle seat. The axle seat and the inner sealing ring are pressed into the outer sealing ring of the large gear seat together. The large gear shaft passes through the axle seat and the inner bracket 12 and is axially connected to the clamping assembly 300. A lock buckle 24 is provided on the base 23, and a hook 25 is fixedly provided on the side wall of the guide rod 1. Among them, the hook 25 is a "T"-shaped structure, the top horizontal line structure of the hook 25 is fixedly connected to the side wall of the guide rod 1, and the bottom of the vertical line structure of the hook 25 is a lock hook 25. The position of the lock buckle 24 corresponds to the position of the lock hook 25. The support frame 200 and the base 23 are fixed by the matching lock buckle 24 and lock hook 25. A wedge block 26 is installed at the lower part of the base 23 . The inclined surface of the wedge block 26 faces upward and has a preset inclination angle. Screw holes are provided on the inclined surface of the wedge block 26 , and the base 23 is screwed and installed on the inclined surface of the wedge block 26 .
[0041] At this point, the detailed working process of the capacitance film vacuum gauge diaphragm cutting and welding device of the present application is as follows: screw the guide screw to adjust the axial stroke of the support frame 200 in the clamping assembly 300, so that the clamping assembly 300 continuously clamps the pre-tightening diaphragm 7 in the axial direction, and after the pre-tightening diaphragm 7 is tightened, it maintains the original tension during the welding process, and then the support frame 200 and the clamping assembly 300 are placed in the base 23 as a whole, and the base 23 and the support frame 200 are locked and fixed by the lock 24. Start the drive assembly 100, and the drive assembly 100 drives the clamping assembly 300 and the pre-tightening diaphragm 7 sandwiched therebetween to rotate together. The unprocessed pre-tightening diaphragm 7 has sufficient margin on its radial edge for processing. The drive assembly 100 rotates at a uniform speed to cooperate with the automatic welding machine, first completing the trimming process, and when cutting the diaphragm, there is a reserved edge on the edge of the diaphragm. Then, the welding machine performs the welding process again, melting the preset length of the reserved edge into the weld as a filler, ensuring the welding of the parts with the same material, ensuring the overall processing quality and production efficiency, and being able to meet industry indicators.
[0042] Preferably, the length of the reserved edge of the pre-tightening membrane 7 is 0.5 mm.
[0043] More specifically, a capacitance film vacuum gauge film cutting and welding device, the lower base 6 is installed on the lower fixed seat 5, and the large gear shaft is equipped with a bearing 4, which is fixed by a shaft end retaining ring and pressed into the lower bearing seat 3 as a whole, and the bearing seat 3 is locked into the lower beam 2, the upper base 8 is installed on the upper fixed seat 9, and the large gear shaft is equipped with a bearing 4, which is fixed by a shaft end retaining ring and pressed into the upper bearing seat 10 as a whole, and the upper bearing seat 10 is locked into the upper beam 11, the upper beam 11 and the lower beam 2 are connected by bolts 1, and the preloaded diaphragm 7 is clamped in the middle, and the whole is placed on the base 23, and through the lock buckle 24 and the hook 25 is fixed, the motor fixing seat 20 is fixed on the motor 21 and connected to the bearing fixing seat 18, two bearings 19 are installed in parallel in the bearing fixing seat 18, the bearing fixing seat 18 is fixed on the large gear seat 16, the large gear 17 is installed on the large gear seat 16, the small gear shaft 22 is fixed on the output shaft of the motor 21, the outer sealing ring 15 is pressed into the large gear seat 16, and the inner bracket 12 and the inner sealing ring 13 are also pressed into the large gear seat 16, the whole is connected to the fixing seat 9 shaft through the shaft seat 14, the large gear seat 16 is fixed on the base 23, and the wedge block 26 is fixed under the base 23.
[0044] Furthermore, the lower base 6 is mounted on the lower fixed base 5, and a bearing 4 is mounted on the large gear shaft and fixed by a shaft end retaining ring.
[0045] Furthermore, a suction cup or a magnet is installed in the fixing seat 5 to fix the lower base 6 and realize the quick loading and unloading function.
[0046] Furthermore, the bearing 4 is a thrust ball bearing or an angular contact ball bearing.
[0047] Furthermore, the upper base 8 is mounted on the upper fixed base 9, and a bearing 4 is installed on the shaft and fixed by a shaft end retaining ring.
[0048] Furthermore, the film 7 is circular in shape, with a thickness of 0.01 mm-0.3 mm, a diameter of ∮30-∮120 mm, and a material of iron-nickel based alloy, stainless steel or constant elastic alloy such as 3J53.
[0049] Furthermore, the upper beam 11 and the lower beam 2 are connected by the guide rod 1, and the film 7 is clamped and fixed.
[0050] Furthermore, the quick lock 24 and the hook 25 are connected by welding.
[0051] Furthermore, the motor fixing seat 20 is fixed between the motor 21 and the bearing fixing seat 18 to play a supporting role.
[0052] Furthermore, the motor 21 is a servo motor.
[0053] Furthermore, two bearings 19 are installed in parallel in the bearing fixing seat 18 .
[0054] Furthermore, the pinion shaft 22 is a cylindrical spur gear or a cylindrical helical gear, HRC45-50, and is fixed on the shaft of the motor 21.
[0055] Furthermore, the large gear seat 16 is a cylindrical spur gear or a cylindrical helical gear, HRC45-50, and is fixed on the large gear seat 16.
[0056] Furthermore, the inner sealing ring 13 is installed in the large gear seat 16 and is pressed and fixed by the inner bracket 12 located outside the large gear seat 16.
[0057] Furthermore, a wedge block 26 is fixed under the base 23 for adjusting the film cutting angle.
[0058] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.
Claims
1. A capacitance thin film vacuum gauge diaphragm cutting and welding device, characterized in that: It includes a base, a driving assembly, a support frame, a clamping assembly, and a pre-tightening diaphragm; The clamping assembly is a columnar structure, the clamping assembly is mounted on the base through the support frame, and the clamping assembly can be rotatably arranged on the support frame; The support frame has an adjustable stroke in the axial direction of the clamping assembly; The driving assembly is arranged on one side of the base, and the pressing assembly is transmission-connected with the driving assembly; The clamping assembly comprises an upper base and a lower base, and the pre-tightening diaphragm is sandwiched between the upper base and the lower base; The driving assembly can drive the clamping assembly to clamp the pre-tensioning diaphragm.
2. The capacitance thin film vacuum gauge diaphragm cutting and welding device according to claim 1, characterized in that: The supporting frame includes an upper beam, a lower beam and a guide rod; The upper beam and the lower beam are respectively clamped from both ends of the clamping assembly to fix the clamping assembly; The guide rod is arranged along the axial direction of the clamping assembly, the upper beam and the lower beam are fixed by the guide rod, the number of the guide rods is two, and the two guide rods are correspondingly arranged on the left and right sides of the upper beam and the lower beam.
3. The capacitance thin film vacuum gauge diaphragm cutting and welding device according to claim 1, characterized in that: The clamping assembly also includes an upper bearing assembly, an upper fixing seat, a lower bearing assembly and a lower fixing seat; The upper fixing seat is installed in the upper bearing assembly, and the two are arranged together at one end of the support frame; the upper base is connected to the upper fixing seat; The lower fixing seat is installed in the lower bearing assembly, and the two are arranged together at the other end of the support frame; The lower base is connected to the lower fixing base.
4. The capacitance thin film vacuum gauge diaphragm cutting and welding device according to claim 1, characterized in that: The driving assembly includes a motor, a mounting assembly, a pinion assembly and a gear assembly; The mounting assembly is arranged on one side of the support frame, the output end of the motor is axially connected to the pinion assembly, the large gear assembly is transmission-connected to the pinion assembly, the large gear assembly is axially connected to the clamping assembly, and the pinion assembly and the large gear assembly are both arranged in the mounting assembly.
5. The capacitance thin film vacuum gauge diaphragm cutting and welding device according to claim 2, characterized in that: It also includes a lock; The lock buckle is arranged on the base. A hook is fixedly provided on the side wall of the guide rod; The hook is in a "T"-shaped structure, the top horizontal line structure of the hook is fixedly connected to the side wall of the guide rod, and the bottom of the vertical line structure of the hook is a locking hook; The position of the lock buckle corresponds to the position of the lock hook, and the support frame and the base are fixed by the matching lock buckle and the lock hook.
6. The capacitance thin film vacuum gauge diaphragm cutting and welding device according to claim 3, characterized in that: The lower fixing seat is detachably connected to the lower base; Specifically, a magnetic attraction member or a suction cup is installed in the lower fixing seat.
7. The capacitance thin film vacuum gauge diaphragm cutting and welding device according to claim 2, characterized in that: The guide rod is a screw rod, and the upper beam and the lower beam are screwed and fixed through the guide rod.
8. The capacitor thin film vacuum machine film cutting and welding device according to any one of claims 1 to 7, characterized in that: The large gear assembly also includes a large gear seat, an outer sealing ring, a shaft seat, an inner sealing ring, an inner bracket and a large gear shaft; The large gear seat is screwed and fixed to one side of the support frame. The large gear seat is a square frame structure. The outer sealing ring is pressed into the large gear seat. The shaft seat is an annular structure. The inner sealing ring is installed to the inner ring of the shaft seat. The shaft seat and the inner sealing ring are pressed into the outer sealing ring of the large gear seat together. The large gear shaft passes through the shaft seat and the inner bracket, and is axially connected to the clamping assembly.
9. The capacitance thin film vacuum gauge diaphragm cutting and welding device according to any one of claims 1 to 7, characterized in that: The angle of the upper surface of the base is adjustable; Specifically, it also includes wedge-shaped blocks; The inclined surface of the wedge block faces upward and has a preset inclination angle, and screw holes are arranged on the inclined surface of the wedge block, and the base is screwed and installed on the inclined surface of the wedge block.
10. A method for processing a capacitance thin film vacuum gauge diaphragm, characterized in that: The capacitance thin film vacuum gauge diaphragm cutting and welding device according to any one of claims 1 to 9 is used to process the pre-tightened diaphragm, the base and the support frame can be clamped and fixed, and the upper surface angle of the base is adjustable; comprising the following steps: Installing the pre-tensioned diaphragm in the middle of the clamping assembly; Adjusting the axial travel of the support frame on the clamping assembly so that the support frame clamps the clamping assembly until the pre-tensioned diaphragm is in a tensioned state; Install the support frame and the clamping assembly together on the base, clamp and fix the support frame on the base, and adjust the angle of the upper surface of the base until the upper surface of the base is at a suitable film cutting angle; The driving assembly rotates, driving the pressing assembly and the pre-tightening diaphragm to rotate in the supporting frame; The automatic welding machine performs the trimming work of the pre-tightening diaphragm, and when cutting, leaves a reserved edge of a preset length on the edge of the pre-tightening diaphragm; The automatic welding machine is used to perform welding work again, and the reserved edge of the preset length is melted into the middle of the weld as a filler.