Flange air tightness detection and processing integrated fixture

Abstract

The utility model discloses a flange air tightness detects and processes integrated fixture, include: base, clamping component, clamping component includes pivot, pivot rotation is connected in the base inside, pivot top fixedly connected with carousel, the carousel inside sliding connection has a plurality of even distribution's connecting shaft, connecting shaft top rotation is connected with the clamping block, detection component, detection component includes support frame, support frame bottom sliding connection is in the base inside, support frame top side fixedly connected with electric push rod, and the electric push rod telescopic end fixedly connected with seal cover. The utility model discloses through with flange clamping, processing positioning and air tightness detection's function integration, and after flange is fixed by clamping component, need not shift work piece or replace special fixture between processing and detection procedure, save work piece dismounting, repositioning etc. Step in process conversion, greatly shorten the time of link, significantly reduce the operation difficulty and artificial cost.

Description

Technical Field

[0001] This utility model relates to the field of flange processing technology, and in particular to an integrated fixture for flange airtightness testing and processing. Background Technology

[0002] Flanges, as core components for detachable connections in piping systems, pressure vessels, and various industrial equipment, play a crucial role in many fields such as petrochemicals, aerospace, water conservancy projects, and energy and power. The sealing performance of their connections directly affects the operational safety and stability of the entire system.

[0003] Currently, the flange production process is typically divided into two independent stages: machining and inspection. During machining, equipment such as lathes and milling machines are used to cut and machine key areas like the flange's sealing surface and bolt holes. Specialized fixtures are needed to precisely position the flange during this process to ensure that dimensional tolerances meet design requirements. After machining, the flange is removed from the machining fixture and transported to a dedicated airtightness testing station. The flange is then re-clamped and fixed using testing fixtures, followed by airtightness testing using equipment such as air pumps and pressure gauges. In some production scenarios, the workpiece may even need to be transferred multiple times between different equipment and stations, with process connections relying on manual operation and transfer.

[0004] However, this separate process of "processing-disassembly-transfer-reclamping-inspection" has significant drawbacks. The frequent disassembly and assembly of workpieces during process transitions not only increases the number of operation steps and the intensity of manual labor, but also prolongs the production cycle. Furthermore, it may cause workpiece damage due to human error, which is not conducive to improving production efficiency and controlling production costs. Therefore, it is necessary to propose a clamping fixture that assists in clamping. Utility Model Content

[0005] The purpose of this invention is to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an integrated fixture for flange airtightness testing and processing, which can eliminate the steps of workpiece disassembly and repositioning during process changeover, significantly reducing operational difficulty and labor costs.

[0006] An integrated fixture for flange airtightness testing and processing according to an embodiment of the present invention includes: Base; A clamping assembly includes a rotating shaft rotatably connected inside a base, a turntable fixedly connected to the top of the rotating shaft, a plurality of evenly distributed connecting shafts slidably connected inside the turntable, and a clamping block rotatably connected to the top of the connecting shaft. The detection component includes a support frame, the bottom of which is slidably connected to the inside of a base, and an electric push rod is fixedly connected to the top side of the support frame. A sealing cover is fixedly connected to the telescopic end of the electric push rod.

[0007] According to some embodiments of this utility model, a motor is fixedly connected inside the base, a gear is fixedly connected to the drive end of the motor, and a plurality of evenly distributed teeth are fixedly connected to the surface of the rotating shaft, and the gear meshes with the teeth.

[0008] According to some embodiments of the present invention, a limiting plate is fixedly connected to the surface of the clamping block, and a plurality of evenly distributed limiting grooves are opened inside the top side of the base, and the limiting plate is slidably connected inside the limiting grooves.

[0009] According to some embodiments of the present invention, a connecting plate is fixedly connected to the bottom end of the connecting shaft, and the connecting plate abuts against the bottom side of the turntable.

[0010] According to some embodiments of the present invention, a spring is fixedly connected inside the clamping block, a rubber pad is slidably connected to the temporal part of the clamping block, and one end of the spring is fixedly connected to one side of the rubber pad.

[0011] According to some embodiments of this utility model, the support frame has two limiting rods slidably connected inside, and the bottom end of the limiting rod is fixedly connected to the top side of the sealing cover.

[0012] According to some embodiments of the present invention, an air pump is fixedly connected to the top side of the base, an air supply pipe is fixedly connected to the output end of the air pump, and one end of the air supply pipe is fixedly connected to the inside of the sealing cover.

[0013] According to some embodiments of the present invention, the base has a sliding groove inside, and the bottom of the support frame is slidably connected inside the sliding groove.

[0014] The present invention has the following beneficial effects: This utility model integrates the functions of flange clamping, processing positioning and air tightness testing. After the flange is fixed by the clamping component, there is no need to transfer the workpiece or change the special fixture between processing and testing processes. The air tightness test can be completed directly by sliding and adjusting the testing component, which completely eliminates the steps of workpiece disassembly and repositioning during process transition, greatly shortens the connection time, and significantly reduces the difficulty of operation and labor costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the external structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the clamping component structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the connecting shaft structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the clamping block structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the support frame structure according to an embodiment of the present utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1. Base; 2. Clamping assembly; 201. Turntable; 202. Gear; 203. Rotating shaft; 204. Motor; 205. Gear; 206. Clamping block; 207. Limiting plate; 208. Connecting shaft; 209. Connecting plate; 210. Rubber pad; 211. Spring; 3. Detection assembly; 301. Air pump; 302. Support frame; 303. Air supply pipe; 304. Electric push rod; 305. Limiting rod; 306. Sealing cover. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention (utility model).

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please see Figures 1-4 As shown, this utility model is an integrated fixture for flange airtightness testing and processing, comprising: Base 1; Clamping assembly 2 includes a rotating shaft 203, which is rotatably connected to the inside of the base 1. A turntable 201 is fixedly connected to the top of the rotating shaft 203. Multiple evenly distributed connecting shafts 208 are slidably connected inside the turntable 201. A clamping block 206 is rotatably connected to the top of the connecting shaft 208. A motor 204 is fixedly connected inside the base 1. A gear 205 is fixedly connected to the drive end of the motor 204. Multiple evenly distributed teeth 202 are fixedly connected to the surface of the rotating shaft 203. The gear 205 meshes with the teeth 202. A limiting plate 207 is fixedly connected to the surface of the clamping block 206, and multiple evenly distributed limiting grooves are opened inside the top side of the base 1, with the limiting plate 207 slidably connected inside the limiting grooves. A connecting plate 209 is fixedly connected to the bottom end of the connecting shaft 208, and the connecting plate 209 abuts against the bottom side of the turntable 201. A spring 211 is fixedly connected inside the clamping block 206, and a rubber pad 210 is slidably connected to the temporal part of the clamping block 206. One end of the spring 211 is fixedly connected to one side of the rubber pad 210.

[0023] The base 1 serves to install and fix other structures. The rotating shaft 203 can drive the turntable 201 to rotate. The turntable 201 has an arc-shaped sliding groove inside. During the rotation of the turntable 201, the connecting shaft 208 can slide inside the arc-shaped sliding groove, thereby driving the clamping block 206 to move. The clamping block 206 can clamp and fix the flange. The motor 204 drive end can drive the rotating shaft 203 to rotate through the gear 205 and teeth 202. The limiting plate 207 slides inside the limiting groove to guide the clamping block 206 to move stably along the limiting groove. The spring 211 can push the rubber pad 210 to press tightly against the flange, thereby increasing the friction between the clamping block 206 and the flange.

[0024] Working principle: The motor 204 inside the base 1 is started. The drive end of the motor 204 drives the gear 205 to rotate. The gear 205 drives the rotating shaft 203 to rotate inside the base 1 through meshing with the teeth 202 on the surface of the rotating shaft 203. The turntable 201 at the top of the rotating shaft 203 rotates synchronously with the rotating shaft 203. During the rotation of the turntable 201, its internal arc-shaped sliding groove guides the connecting shaft 208, so that multiple connecting shafts 208 drive multiple clamping blocks 206 to slide along the limiting groove on the top side of the base 1. This further guides the clamping blocks 206 to stably approach the flange along the preset trajectory. When the clamping block 206 contacts the flange, the spring 211 inside the clamping block 206 pushes the rubber pad 210 to press tightly against the flange surface. This increases the clamping friction and avoids direct contact between the clamping block 206 and the flange surface, thus completing the firm positioning of the flange and facilitating the processing or airtightness testing of the flange.

[0025] Please see Figure 1 , Figure 5 As shown, this embodiment, based on the above embodiment, further includes: The detection component 3 includes a support frame 302. The bottom of the support frame 302 is slidably connected to the inside of the base 1. An electric push rod 304 is fixedly connected to the top side of the support frame 302. A sealing cover 306 is fixedly connected to the telescopic end of the electric push rod 304. The support frame 302 has two sliding connection of limit rods 305, and the bottom end of the limit rods 305 is fixedly connected to the top side of the sealing cover 306. An air pump 301 is fixedly connected to the top side of the base 1. An air supply pipe 303 is fixedly connected to the output end of the air pump 301. One end of the air supply pipe 303 is fixedly connected to the inside of the sealing cover 306. The base 1 has a sliding groove inside, and the bottom of the support frame 302 is slidably connected inside the sliding groove.

[0026] The support frame 302 is used to install the electric push rod 304. The telescopic end of the electric push rod 304 can drive the sealing cover 306 to move stably along the limiting rod 305. The sealing cover 306 covers the flange, which can form a sealed space inside the flange to facilitate air tightness testing. When the air pump 301 is started, air inside the flange can be drawn through the air supply pipe 303 to perform air tightness testing.

[0027] Working principle: The electric push rod 304 on the top side of the control support frame 302 extends downward, driving the sealing cover 306 to descend smoothly along the guide direction of the limit rod 305. The limit rod 305 is slidably connected inside the support frame 302, and its bottom end is fixed to the sealing cover 306 to ensure the stability of the lifting and lowering until the sealing cover 306 tightly covers the top of the flange, forming a closed space inside the flange. The air pump 301 on the top side of the base 1 is started. The air pump 301 draws air from the closed space through the air supply pipe 303. By monitoring the air pressure change in the closed space, the airtightness of the flange is detected.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated fixture for flange airtightness testing and processing, characterized in that, include: Base (1); The clamping assembly (2) includes a rotating shaft (203), which is rotatably connected inside the base (1). A turntable (201) is fixedly connected to the top of the rotating shaft (203). Multiple evenly distributed connecting shafts (208) are slidably connected inside the turntable (201). A clamping block (206) is rotatably connected to the top of the connecting shaft (208). The detection component (3) includes a support frame (302), the bottom of which is slidably connected to the inside of the base (1), and an electric push rod (304) is fixedly connected to the top side of the support frame (302). A sealing cover (306) is fixedly connected to the telescopic end of the electric push rod (304).

2. The integrated fixture for flange airtightness testing and processing according to claim 1, characterized in that: A motor (204) is fixedly connected inside the base (1). A gear (205) is fixedly connected to the drive end of the motor (204). A plurality of evenly distributed teeth (202) are fixedly connected to the surface of the rotating shaft (203). The gear (205) meshes with the teeth (202).

3. The integrated fixture for flange airtightness testing and processing according to claim 1, characterized in that: The clamping block (206) is fixedly connected to a limiting plate (207), and the base (1) has multiple evenly distributed limiting grooves inside its top side. The limiting plate (207) is slidably connected inside the limiting grooves.

4. The integrated fixture for flange airtightness testing and processing according to claim 1, characterized in that: The bottom end of the connecting shaft (208) is fixedly connected to a connecting plate (209), and the connecting plate (209) abuts against the bottom side of the turntable (201).

5. The integrated fixture for flange airtightness testing and processing according to claim 1, characterized in that: A spring (211) is fixedly connected inside the clamping block (206), and a rubber pad (210) is slidably connected to the temporal part of the clamping block (206). One end of the spring (211) is fixedly connected to one side of the rubber pad (210).

6. The integrated fixture for flange airtightness testing and processing according to claim 1, characterized in that: The support frame (302) has two slidingly connected limit rods (305) inside, and the bottom end of the limit rods (305) is fixedly connected to the top side of the sealing cover (306).

7. The integrated fixture for flange airtightness testing and processing according to claim 1, characterized in that: An air pump (301) is fixedly connected to the top side of the base (1), and an air supply pipe (303) is fixedly connected to the output end of the air pump (301). One end of the air supply pipe (303) is fixedly connected to the inside of the sealing cover (306).

8. The integrated fixture for flange airtightness testing and processing according to claim 1, characterized in that: The base (1) has a sliding groove inside, and the bottom of the support frame (302) is slidably connected inside the sliding groove.

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