Air tightness detection tool for silencer

Abstract

The utility model discloses a silencer airtightness detection tool, which relates to the technical field of silencer airtightness detection work, and comprises a workbench, the lower surface of the workbench is fixedly connected with a first supporting leg, the upper surface of the workbench is provided with a groove, the surface of the groove is slidably connected with a sliding block, and the upper surface of the sliding block is fixedly connected with a fixing tool. A silencer clamping groove is formed in the inner side of the fixing tool, a fixing frame is fixedly connected to the upper surface of the fixing tool, a hydraulic telescopic cylinder is installed on the inner top face of the fixing frame, a mounting plate is arranged on the right side of the workbench, second supporting legs are fixedly connected to the surface of the mounting plate, and rolling columns are rotationally connected to the inner side face of the mounting plate through bearings. According to the silencer machining device, due to the arrangement of the sliding block, the fixing tool, the guide inclined plate, the hydraulic telescopic cylinder and the rubber anti-skid cushion block, silencers of different specifications can be fixed, and the purpose of improving the applicability of the tool is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of muffler air tightness detection work, in particular to a muffler air tightness detection tool. Background Art

[0002] The car muffler is a device installed in the exhaust system of the car. Its main function is to reduce the noise generated by the engine exhaust. The car muffler is usually manufactured with complex acoustic design and process to achieve the effect of reducing noise and meet the relevant emission standards. Sound wave absorption: When the high-pressure gas generated by the engine exhaust passes through the muffler, the sound waves in the gas will be absorbed by the sound-absorbing material and converted into a trace amount of heat energy, thereby reducing the noise. Sound wave refraction and reflection: The complex structure inside the muffler can refract and reflect the sound waves, change the propagation path of the sound waves, and reduce the propagation and diffusion of the sound. Exhaust damping: The spiral pipe and other structures inside the muffler can increase the resistance of the gas, reduce the exhaust speed, and thus reduce the noise generated by the exhaust. Vibration reduction function: The muffler can not only reduce the exhaust noise, but also has a certain vibration reduction function, which can reduce the transmission of the exhaust system vibration to the car body and improve the ride comfort. The car muffler uses sound-absorbing materials, complex internal structures and specific design principles to achieve effective reduction of engine exhaust noise, improve the driving comfort of the vehicle, and also meet the relevant environmental emission standards.

[0003] A car muffler air tightness detection tool is disclosed in the Chinese utility model patent application disclosure CN203719837U. Although the utility model can fix and seal the muffler well and print a mark on the muffler after detection to avoid missed detection and re-inspection, a muffler fixing tool can only fix mufflers of one specification and has the disadvantage of poor applicability. In order to improve the applicability of the muffler air tightness detection tool, a muffler air tightness detection tool is urgently needed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a muffler air tightness detection tooling, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a muffler airtightness detection tooling, comprising a workbench, a lower surface of the workbench is fixedly connected to a first supporting leg, an upper surface of the workbench is provided with a groove, a sliding block is slidably connected to the surface of the groove, a fixed tooling is fixedly connected to the upper surface of the sliding block, a muffler slot is provided on the inner side of the fixed tooling, a muffler main body is provided on the surface of the muffler slot, a guide inclined plate is fixedly connected to the right side of the fixed tooling, a fixed frame is fixedly connected to the upper surface of the fixed frame, a hydraulic telescopic cylinder is installed on the top surface of the fixed frame, a rubber anti-slip pad is fixedly connected to the telescopic end of the hydraulic telescopic cylinder, the other side of the rubber anti-slip pad abuts against the upper surface of the muffler main body, a mounting plate is provided on the right side of the workbench, a second supporting leg is fixedly connected to the surface of the mounting plate, the inner side surface of the mounting plate is rotatably connected to a rolling column through a bearing, and a controller is installed on the right side of the workbench.

[0008] Optionally, a servo motor is installed on the surface on the left side of the groove, a lead screw is fixedly connected to the output end of the servo motor, the other end of the lead screw is rotatably connected through the inner surface of the bearing groove, and a slider is threadedly connected to the surface of the lead screw.

[0009] Optionally, the number of the grooves, servo motors, lead screws, sliders and fixed fixtures is two each, and they are symmetrically distributed.

[0010] Optionally, a pipe groove is provided at the connection between the fixing fixture and the guide inclined plate, and the pipe on the side of the muffler body passes through the pipe groove.

[0011] Optionally, the number of the fixing frame, the hydraulic telescopic cylinder and the rubber anti-skid pads are two each, and they are symmetrically distributed on the fixing tools on both sides.

[0012] Optionally, the left end of the mounting plate is arranged on the right side of the guide inclined plate, and the number of rolling columns is several and is equidistantly distributed.

[0013] The utility model provides a muffler air tightness detection tooling, which has the following beneficial effects:

[0014] 1. This kind of muffler air tightness detection tooling has the effect of conveniently fixing mufflers of different specifications through the arrangement of sliders, fixed tooling, guide inclined plates, hydraulic telescopic cylinders and rubber anti-skid pads. When in use, the staff first adjusts the distance between the two fixed toolings according to the width of the muffler. During the adjustment process, the servo motors on both sides are controlled by the controller to make the servo motor drive the lead screw to rotate, so that the slider threaded on the surface of the lead screw slides in the groove. When the slider moves, it drives the fixed tooling to move together until the spacing of the muffler slots between the two fixed toolings is consistent with the width of the muffler, and the fixed tooling on both sides is symmetrically distributed. Then the staff places the muffler body to be tested on the rolling column, and pushes the muffler body toward the fixed tooling. During the pushing process, the rolling column rotates on the inner side of the mounting plate, so that the muffler body is pushed The utility model is more labor-saving. When the muffler body is close to the fixed tooling, the guide inclined plate is first used to provide guidance for the muffler body, and the muffler body is gradually moved to the middle until the muffler body is located in the middle of the two fixed toolings, and the muffler body is pushed into the muffler card slot on the inner side of the fixed tooling. After completion, the telescopic end of the hydraulic telescopic cylinder is controlled to extend outward, and the rubber anti-skid pad is driven downward by the hydraulic telescopic cylinder to make the rubber anti-skid pad abut against the upper surface of the muffler body, thereby pressing the muffler body to complete the fixation of the muffler body, and then the detection device is used to connect the pipes on both sides of the muffler body, and the sealing of the muffler body is detected. The tooling can adjust the positions of the two fixed toolings, and then cooperate with the hydraulic telescopic cylinder and the rubber anti-skid pad to fix mufflers of different specifications, thereby achieving the purpose of improving the applicability of the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model from a top view;

[0017] Figure 3 It is a schematic diagram of the structure of the side cross-section of the utility model;

[0018] Figure 4 For this utility model Figure 3 The structural diagram at A in the middle;

[0019] Figure 5 For this utility model Figure 3 Schematic diagram of the structure at B in the figure.

[0020] In the figure: 1. workbench; 2. first supporting leg; 3. groove; 4. servo motor; 5. lead screw; 6. slider; 7. fixing tool; 8. muffler slot; 9. guide inclined plate; 10. pipe groove; 11. muffler body; 12. fixing frame; 13. hydraulic telescopic cylinder; 14. rubber anti-skid pad; 15. mounting plate; 16. second supporting leg; 17. rolling column; 18. controller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Example 1

[0023] See also Figures 1 to 5 The utility model provides a technical solution: a muffler airtightness detection tool, comprising a workbench 1, a first support leg 2 is fixedly connected to the lower surface of the workbench 1, a groove 3 is provided on the upper surface of the workbench 1, a slider 6 is slidably connected to the surface of the groove 3, a servo motor 4 is installed on the surface on the left side of the groove 3, a lead screw 5 is fixedly connected to the output end of the servo motor 4, the other end of the lead screw 5 is rotatably connected through the inner side surface of the bearing groove 3, a slider 6 is threadedly connected to the surface of the lead screw 5, and a fixed tool 7 is fixedly connected to the upper surface of the slider 6, The number of grooves 3, servo motors 4, lead screws 5, sliders 6 and fixed fixtures 7 are two each, and they are symmetrically distributed. A muffler slot 8 is provided on the inner side of the fixed fixture 7, and a muffler body 11 is provided on the surface of the muffler slot 8. A guide ramp 9 is fixedly connected to the right side of the fixed fixture 7, and a pipe slot 10 is provided at the connection between the fixed fixture 7 and the guide ramp 9. The pipe on the side of the muffler body 11 passes through the pipe slot 10. A fixed frame 12 is fixedly connected to the upper surface of the fixed fixture 7, and a hydraulic telescopic cylinder 13 is installed on the inner top surface of the fixed frame 12. A rubber anti-skid pad 14 is fixedly connected to the telescopic end of the hydraulic telescopic cylinder 13. There are two fixed frames 12, two hydraulic telescopic cylinders 13 and two rubber anti-skid pads 14, which are symmetrically distributed on the fixed tools 7 on both sides. The other side of the rubber anti-skid pads 14 abuts against the upper surface of the muffler body 11. A mounting plate 15 is provided on the right side of the workbench 1. A second supporting leg 16 is fixedly connected to the surface of the mounting plate 15. A rolling column 17 is rotatably connected to the inner side of the mounting plate 15 through a bearing. A controller 18 is installed on the right side of the workbench 1. The left end of the mounting plate 15 is provided on the right side of the guide inclined plate 9. There are several rolling columns 17, which are evenly distributed.

[0024] In order to achieve the purpose of improving the applicability of the tooling, when in use, through the arrangement of the slider 6, the fixed tooling 7, the guide inclined plate 9, the hydraulic telescopic cylinder 13 and the rubber anti-skid pad 14, the muffler airtightness detection tooling has the effect of conveniently fixing mufflers of different specifications. When in use, the staff first adjusts the distance between the two fixed toolings 7 according to the width of the muffler. During the adjustment process, the servo motors 4 on both sides are controlled by the controller 18 to work, so that the servo motor 4 drives the lead screw 5 to rotate, so that the slider 6 threadedly connected to the surface of the lead screw 5 slides in the groove 3, and the slider 6 moves while driving the fixed tooling 7 to move together until the spacing of the muffler slots 8 between the two fixed toolings 7 is consistent with the width of the muffler, and the fixed toolings 7 on both sides are symmetrically distributed. Then the staff places the muffler body 11 to be tested on the rolling column 17, and pushes the muffler body 11 toward the fixed tooling 7. During the pushing process, the rolling column 17 rotates on the inner side of the mounting plate 15, so that the muffler body 1 is pushed 1 is more labor-saving. When the muffler body 11 approaches the fixed tooling 7, the guide inclined plate 9 first provides guidance for the muffler body 11, and the muffler body 11 gradually moves to the middle until the muffler body 11 is located between the two fixed toolings 7, and the muffler body 11 is pushed into the muffler card slot 8 on the inner side of the fixed tooling 7. After completion, the telescopic end of the hydraulic telescopic cylinder 13 is controlled to extend outward, and the rubber anti-skid pad 14 is driven downward by the hydraulic telescopic cylinder 13 to make the muffler body 11 move downward. The rubber anti-skid pad 14 abuts against the upper surface of the muffler body 11, thereby pressing the muffler body 11 to complete the fixation of the muffler body 11, and then the detection device is used to connect the pipes on both sides of the muffler body 11 to detect the sealing of the muffler body 11. The tooling can adjust the positions of the two fixing tools 7, and then cooperate with the hydraulic telescopic cylinder 13 and the rubber anti-skid pad 14 to fix mufflers of different specifications, thereby achieving the purpose of improving the applicability of the tooling.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A muffler air tightness detection tool, comprising a workbench (1), characterized in that: The lower surface of the workbench (1) is fixedly connected to a first supporting leg (2); the upper surface of the workbench (1) is provided with a groove (3); the surface of the groove (3) is slidably connected to a slider (6); the upper surface of the slider (6) is fixedly connected to a fixed fixture (7); a muffler slot (8) is provided on the inner side of the fixed fixture (7); a muffler body (11) is provided on the surface of the muffler slot (8); a guide inclined plate (9) is fixedly connected to the right side of the fixed fixture (7); and a fixed frame (12) is fixedly connected to the upper surface of the fixed fixture (7). A hydraulic telescopic cylinder (13) is installed on the inner top surface of the fixed frame (12); a rubber anti-skid pad (14) is fixedly connected to the telescopic end of the hydraulic telescopic cylinder (13); the other surface of the rubber anti-skid pad (14) abuts against the upper surface of the muffler body (11); a mounting plate (15) is provided on the right side of the workbench (1); a second supporting leg (16) is fixedly connected to the surface of the mounting plate (15); a rolling column (17) is rotatably connected to the inner side surface of the mounting plate (15) via a bearing; and a controller (18) is installed on the right side surface of the workbench (1).

2. The muffler air tightness detection tool according to claim 1, characterized in that: A servo motor (4) is mounted on the surface on the left side of the groove (3); a lead screw (5) is fixedly connected to the output end of the servo motor (4); the other end of the lead screw (5) is rotatably connected to the inner side surface of the bearing groove (3); and a slider (6) is threadedly connected to the surface of the lead screw (5).

3. The muffler air tightness detection tool according to claim 2, characterized in that: The number of the groove (3), the servo motor (4), the lead screw (5), the slider (6) and the fixed tooling (7) is two and they are symmetrically distributed.

4. The muffler air tightness detection tool according to claim 1, characterized in that: A pipe groove (10) is provided at the connection between the fixing tool (7) and the guide inclined plate (9), and a pipe on the side of the muffler body (11) passes through the pipe groove (10).

5. The muffler air tightness detection tool according to claim 1, characterized in that: The number of the fixed frame (12), the hydraulic telescopic cylinder (13) and the rubber anti-skid pad (14) is two each, and they are symmetrically distributed on the fixed tooling (7) on both sides.

6. The muffler air tightness detection tool according to claim 1, characterized in that: The left end of the mounting plate (15) is arranged on the right side of the guide inclined plate (9), and the number of rolling columns (17) is several and they are distributed at equal intervals.

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