Electric main reducer air tightness inspection tool

Abstract

The utility model discloses an electric main speed reducer air tightness inspection frock relates to air tight detection technical field, including work table, the work table is fixedly connected with the sealed storehouse, the top of sealed storehouse is equipped with the support platform of main speed reducer flange adaptation, the support platform is fixedly connected with the sealing ring, the inboard of sealing ring is fixedly connected with the sealing ring in the position of flange bolt hole corresponding, and the inboard of one sealing ring is penetrated with the locating post, and the locating post is fixedly connected with sealed storehouse, the outside of sealed storehouse is equipped with a plurality of pressure rod by the first air cylinder drive lift along its circumference, the pressure rod is used for the main speed reducer and is pressed tightly fixed to the main speed reducer, the bottom of sealed storehouse is equipped with the air inlet, and the air inlet is connected with the detection interface intercommunication of air tight detection appearance. This electric main speed reducer air tightness inspection frock reduces air tightness inspection difficulty, improves detection efficiency, and is convenient for later period tracing simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, specifically to a tooling for testing the airtightness of an electric main reducer. Background Technology

[0002] In the manufacturing process of electric main reducers, airtightness testing is a crucial step in ensuring product quality, and its efficiency and ease of operation directly affect the overall production progress. Currently, in the airtightness testing process of main reducers, traditional clamping methods mostly rely on manual fixing, which not only makes it difficult to quickly assemble and disassemble the main reducer, but also easily increases the operational difficulty of airtightness testing due to uneven clamping force or positioning deviation.

[0003] Meanwhile, the existing inspection process lacks a corresponding product traceability mechanism. After inspection, it is impossible to establish a unique identifier for the main reducer. When products that fail to meet airtightness standards are found, it is difficult to quickly locate the source of the problem and to effectively prevent unqualified products from flowing into subsequent stages, which poses a hidden danger to product quality control.

[0004] Therefore, it is necessary to propose a tooling for testing the air tightness of electric main reducers to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this utility model is to provide an airtightness testing fixture for electric main reducers, so as to solve the problems of low testing efficiency and inconvenience in product traceability of existing testing fixtures mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: an airtightness testing fixture for an electric main reducer, including a workbench, a sealing chamber fixedly connected to the workbench, a support platform adapted to the flange of the main reducer provided at the top of the sealing chamber, a sealing ring fixedly connected to the support platform, a sealing ring fixedly connected to the inner side of the sealing ring at a position corresponding to the flange bolt hole, a positioning post penetrating through the inner side of one of the sealing rings, and the positioning post fixedly connected to the sealing chamber; The outer side of the sealed chamber is provided with several pressure rods that are driven to rise and fall by the first cylinder. The pressure rods act on the main reducer to press and fix the main reducer. An air inlet is provided at the bottom of the sealed chamber and the air inlet is connected to the detection interface of the air tightness tester.

[0007] Preferably, a rocker arm is fixedly connected to the piston rod of the first cylinder, and the pressure rod is fixedly connected to the end of the rocker arm away from the first cylinder. The first cylinder is a rotary cylinder.

[0008] Preferably, the support platform of the sealing chamber is provided with a slot for limiting the sealing ring and sealing ring.

[0009] Preferably, the top of the positioning post is provided with a tapered slope.

[0010] Preferably, it also includes a marking machine, which is slidably connected to the worktable, and the marking machine is driven by a second cylinder to move closer to or away from the main reducer.

[0011] Preferably, the bottom end of the marking machine is fixedly connected to a movable seat, which is slidably connected to the worktable via a slide rail, and the movable seat is connected to the piston rod of the second cylinder via a transmission rod.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a tooling for testing the airtightness of an electric main reducer, which has the following advantages: 1. This electric main reducer air tightness inspection fixture, by setting up a pressure rod, a first cylinder and a positioning column, can quickly position the main reducer on the sealing chamber. At the same time, under the action of the sealing ring and sealing ring, the sealing effect between the main reducer housing and the sealing chamber is guaranteed. The air tightness is tested by an air tightness tester. Through their combined action, the difficulty of air tightness inspection of the main reducer is reduced and the testing efficiency is improved.

[0013] 2. The airtightness inspection fixture for the electric main reducer uses a marking machine to stamp a steel mark on the outside of the main reducer that has passed the inspection, so as to facilitate later traceability, prevent the main reducer that fails the airtightness test from being released, and ensure the quality of the inspection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model; Figure 2 This is a side perspective three-dimensional schematic diagram of the structure of this utility model; Figure 3 This is a three-dimensional schematic diagram of the sealed chamber of this utility model; Figure 4 This is a cross-sectional schematic diagram of the sealing chamber of this utility model.

[0015] In the diagram: 1. Pressure rod; 2. Swing arm; 3. First cylinder; 4. Sealing chamber; 5. Marking machine; 6. Transmission rod; 7. Second cylinder; 8. Worktable; 9. Air tightness tester; 10. Slide rail; 11. Movable seat; 12. Sealing ring; 13. Sealing ring; 14. Positioning column; 15. Air inlet; 16. Main reducer. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Please see Figure 1-4 As shown, an airtightness testing fixture for an electric main reducer includes a workbench 8, on which a sealing chamber 4 is fixedly connected. The top of the sealing chamber 4 is provided with a support platform adapted to the flange of the main reducer 16. A sealing ring 13 is fixedly connected to the support platform. A sealing ring 12 is fixedly connected to the inner side of the sealing ring 13 at a position corresponding to the flange bolt hole. A positioning post 14 passes through the inner side of one of the sealing rings 12, and the positioning post 14 is fixedly connected to the sealing chamber 4. Several pressure rods 1, driven to rise and fall by a first cylinder 3, are arranged circumferentially on the outer side of the sealing chamber 4. The pressure rods 1 act on the main reducer 16 to press and fix the main reducer 16. An air inlet 15 is opened at the bottom of the sealing chamber 4, and the air inlet 15 is connected to the testing interface of the airtightness tester 9.

[0018] When positioning the main reducer 16, align the flange of the main reducer 16 with the support platform of the sealing chamber 4, and insert the positioning pin 14 into the bolt holes of the flange to ensure that the multiple sealing rings 12 are aligned with the multiple bolt holes on the flange. Finally, drive the pressure rod 1 downward through the first cylinder 3 to press and fix the main reducer 16. The sealing ring 13 achieves the seal between the flange and the end face of the support platform, and the sealing rings 12 achieve the seal at the bolt holes, ensuring the sealing effect required for the airtightness test. During the airtightness test, clean compressed air of constant pressure and quantity is continuously introduced into the sealing chamber 4 through the airtightness tester 9, and the air pressure change inside the sealing chamber 4 is monitored in real time during the pressure holding phase. If the pressure drop does not exceed the allowable threshold within the set pressure holding time, the airtightness of the workpiece is judged to be qualified.

[0019] To prevent the pressure rod 1 from interfering with the disassembly and assembly of the main reducer 16, a rocker arm 2 is fixedly connected to the piston rod of the first cylinder 3. The pressure rod 1 is fixedly connected to the end of the rocker arm 2 away from the first cylinder 3, which is a rotary cylinder. When the first cylinder 3 moves upward, it drives the rocker arm 2 to rotate and rise, moving the pressure rod 1 away from the sealing chamber 4 to prevent the pressure rod 1 from interfering with the disassembly and assembly of the main reducer 16. When the first cylinder 3 moves downward, it drives the rocker arm 2 to rotate and descend, moving the pressure rod 1 to the flange of the main reducer 16 so that the pressure rod 1 can be driven by the first cylinder 3 to position the main reducer 16.

[0020] Specifically, the support platform of the sealing chamber 4 has slots for limiting the sealing ring 12 and the sealing ring 13. By setting the slots to limit and fix the sealing ring 12 and the sealing ring 13, it is possible to replace and maintain the sealing ring 12 and the sealing ring 13.

[0021] To facilitate the positioning of the main reducer 16, the top of the positioning post 14 is provided with a tapered ramp. The tapered ramp guides the positioning post 14 to be quickly and smoothly inserted into the bolt hole, improving assembly efficiency.

[0022] In some embodiments, a marking machine 5 is also included. The marking machine 5 is slidably connected to the worktable 8. The marking machine 5 is driven by the second cylinder 7 to move closer to or away from the main reducer 16. After the airtightness test is passed, the marking machine 5 is driven by the second cylinder 7 to move closer to the main reducer 16. The marking machine 5 then stamps a steel mark on the outside of the main reducer 16. This steel mark can serve as a traceability identifier, thereby enabling full-process tracking of the main reducer 16 and effectively preventing the outflow of products that fail the airtightness test.

[0023] Specifically, a movable seat 11 is fixedly connected to the bottom of the marking machine 5. The movable seat 11 is slidably connected to the worktable 8 via a slide rail 10. The movable seat 11 is connected to the piston rod of the second cylinder 7 via a transmission rod 6. By using the slide rail 10 to slidably connect the marking machine 5 to the worktable 8, the position adjustment requirements of the marking machine 5 are met while its stability is improved.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for testing the air tightness of an electric main reducer, comprising a workbench (8), characterized in that: A sealing chamber (4) is fixedly connected to the workbench (8). The top of the sealing chamber (4) is provided with a support platform that is compatible with the flange of the main reducer (16). A sealing ring (13) is fixedly connected to the support platform. A sealing ring (12) is fixedly connected to the inner side of the sealing ring (13) at a position corresponding to the flange bolt hole. A positioning post (14) passes through the inner side of one of the sealing rings (12). The positioning post (14) is fixedly connected to the sealing chamber (4). The outer side of the sealed chamber (4) is provided with several pressure rods (1) driven to rise and fall by the first cylinder (3). The pressure rods (1) act on the main reducer (16) to press and fix the main reducer (16). The bottom end of the sealed chamber (4) is provided with an air inlet (15), which is connected to the detection interface of the air tightness tester (9).

2. The airtightness testing fixture for an electric main reducer according to claim 1, characterized in that: A rocker arm (2) is fixedly connected to the piston rod of the first cylinder (3), and the pressure rod (1) is fixedly connected to the end of the rocker arm (2) away from the first cylinder (3). The first cylinder (3) is a rotary cylinder.

3. The airtightness testing fixture for an electric main reducer according to claim 1, characterized in that: The support platform of the sealing chamber (4) is provided with a slot for limiting the sealing ring (12) and the sealing ring (13).

4. The airtightness testing fixture for an electric main reducer according to claim 1, characterized in that: The top of the positioning post (14) is provided with a tapered slope.

5. The airtightness testing fixture for an electric main reducer according to claim 1, characterized in that: It also includes a marking machine (5), which is slidably connected to the worktable (8), and the marking machine (5) is driven by the second cylinder (7) to move closer to or away from the main reducer (16).

6. The airtightness testing fixture for an electric main reducer according to claim 5, characterized in that: The bottom end of the marking machine (5) is fixedly connected to a movable seat (11), which is slidably connected to the worktable (8) via a slide rail (10). The movable seat (11) is connected to the piston rod of the second cylinder (7) via a transmission rod (6).

Images