Device for detecting size of through hole of exhaust pipe

Abstract

The utility model discloses an exhaust pipe through hole size detection device which comprises a rack, and the rack is provided with a positioning assembly used for positioning a flange plate on one side of an exhaust pipe and a limiting assembly used for limiting a flange plate on the other side of the exhaust pipe. The positioning assembly and the limiting assembly are each provided with a monitoring assembly used for monitoring the position of the flange plate. The rack is further provided with a set of detection assemblies, and the detection assemblies can be driven by external force to be at least partially arranged in the through holes of the exhaust pipe in an extending mode. The exhaust pipe detection device has the advantages that the design is exquisite, the plug can extend into the through hole by pressing the limiting ball, so that the exhaust pipe which is not matched with the plug can be detected, namely the diameter of the plug on the exhaust pipe is small or the plug is displaced, the operation is simple and convenient, the reset spring can drive the plug to move upwards after the working process, and the detection accuracy is high. The device is simple in structure, convenient for next-time processing, capable of greatly improving the working efficiency, convenient for batch production and wide in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, and in particular to a device for detecting the through-hole size of an exhaust pipe. Background Technique

[0002] An automobile exhaust pipe is installed in the exhaust pipe between the exhaust branch pipe of the engine and the muffler, making the entire exhaust system be flexibly connected, so as to play the roles of vibration reduction, noise reduction, convenient installation and extending the service life of the exhaust noise reduction system. It is mainly used for light vehicles, mini vehicles and buses. Its structure is a double-layer corrugated pipe covered with a steel wire mesh sleeve, and the outer sleeves of the straight-edge sections at both ends are provided with snap rings. To make the sound absorption effect better, a telescopic joint or a mesh sleeve can be arranged inside the corrugated pipe. Material: The main material is stainless steel SUS304, and the materials of the ferrule and the connecting pipe can be stainless steel or aluminized steel;

[0003] As the authorized announcement number CN217687007U discloses a device for detecting the size of an exhaust pipe, including a positioning disc, a positioning bin is fixed at the bottom of the positioning disc, and a limiting mechanism is arranged outside the positioning disc; a measuring mechanism is arranged inside the positioning bin. However, the above device needs to detect the size of the automobile exhaust pipe one by one to check whether it is qualified. If the manual measurement method is used, it will take a lot of time and manpower, with a large working intensity and low efficiency, which is not conducive to the batch development of enterprises. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies existing in the prior art and provide a device for detecting the through-hole size of an exhaust pipe.

[0005] The purpose of the utility model is realized through the following technical solutions:

[0006] A device for detecting the through-hole size of an exhaust pipe includes a frame, a positioning component for positioning the flange on one side of the exhaust pipe and a limiting component for limiting the flange on the other side of the exhaust pipe are arranged on the frame, and monitoring components for monitoring the position of the flange are arranged on both the positioning component and the limiting component; a group of detection components are also arranged on the frame, and the detection components can be driven by an external force to at least partially extend into the through-hole of the exhaust pipe.

[0007] Preferably, the positioning component at least includes a positioning seat fixed on the frame, a sliding plate is slidably arranged on the positioning seat, a positioning plate is fixed on the sliding plate, and a positioning pin is arranged on the positioning plate, and the positioning pin can be inserted into the positioning hole on the flange.

[0008] Preferably, the positioning assembly further includes a slide rail fixed on the positioning seat, a slider adapted to the slide rail is arranged on the slide rail, and the positioning plate is fixed on the slider; a support seat is also fixed on the frame, a pull rod seat is fixed on the support seat, a pull rod is slidably arranged on the pull rod seat, one end of the pull rod is fixedly connected to the positioning plate, and the other end is pivotally connected to the transmission arm. An L-shaped pull handle is also pivotally arranged on the pull rod seat, and the middle part of the pull handle is pivotally connected to the transmission arm.

[0009] Preferably, the limiting assembly at least includes a limiting seat fixed on the frame, and a limiting plate is fixed on the limiting seat; a limiting cylinder is fixed on the outer side of the limiting seat, and a limiting bar is pivotally arranged on the cylinder shaft of the limiting cylinder; a first support block is also fixed on the housing of the limiting cylinder, a connecting bar is fixed on the first support block, and the middle part of the limiting bar is pivotally arranged on the connecting bar.

[0010] Preferably, the monitoring assembly at least includes displacement sensors fixed on the positioning plate and the limiting plate, and the included angles formed by adjacent displacement sensors on the positioning plate or the limiting plate and the center of the flange are the same.

[0011] Preferably, the detection assembly at least includes a detection seat fixed on the frame, a detection block is fixed on the detection seat, a detection strip can be quickly connected to the detection block, a pipe through hole is formed in the detection strip, a sliding rod is slidably arranged in the pipe through hole, a limiting ball is fixed at one end of the sliding rod, and a plug adapted to the through hole is fixed at the other end; a return spring is also sleeved on the sliding rod, one end of the return spring abuts against the limiting ball, and the other end abuts against the detection strip.

[0012] Preferably, a support block is also fixed on the frame, a second support block is fixed on the support block, a connecting block is fixed on the second support block, a clamping block is fixed on the connecting block, and a clamping groove adapted to the branch pipe on the exhaust pipe is formed in the clamping block.

[0013] The beneficial effects of the present utility model are mainly reflected in:

[0014] 1. Exquisite design, pressing the limiting ball can extend the plug into the through hole, so as to detect the exhaust pipe that does not match the plug, that is, the plug diameter on the exhaust pipe is too small or displaced. This operation is simple and convenient. After the work process, the return spring can drive the plug to move upward, which is convenient for the next processing, greatly improving the work efficiency. At the same time, it is convenient for mass production and has wide applicability;

[0015] 2. By pulling the handle, the transmission arm can drive the pull rod to move on the slide. The operation is simple and convenient, easy to disassemble, replace and repair, greatly improving work efficiency and having wide applicability. In addition, the slide rail and the slide block cooperate with each other to improve the sliding stability of the positioning plate, making the sliding position more accurate and improving the accuracy of measurement;

[0016] 3. The limit cylinders are evenly distributed around the limit seat, which can make the flange evenly stressed, avoid tilting and improve stability;

[0017] 4. The displacement sensors are evenly distributed on the positioning plate and the limit plate, which can ensure the parallelism between the positioning plate and the limit plate and the flange, thereby ensuring the accuracy of the position of the positioning component and the limit component, realizing real-time monitoring of the exhaust pipe position, and further improving the measurement accuracy;

[0018] 5. Inserting the positioning pin into the positioning hole can prevent the exhaust pipe from moving radially and ensure the accuracy of the position, so as to improve the yield rate of subsequent dimensional inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0020] Figure 1 : A three-dimensional diagram of an exhaust pipe in a preferred embodiment of the utility model;

[0021] Figure 2 : A three-dimensional diagram of a preferred embodiment of the utility model;

[0022] Figure 3 : A three-dimensional diagram of a positioning assembly in a preferred embodiment of the utility model;

[0023] Figure 4 : A three-dimensional diagram of a position limiting assembly in a preferred embodiment of the utility model;

[0024] Figure 5 : A three-dimensional diagram of the detection component in the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] like Figures 1 to 5As shown in the figure, the present utility model discloses a detection device for the through-hole size of an exhaust pipe, which includes a frame 1. On one side of the frame 1, there is a positioning component 2 for positioning the flange 101 on one side of the exhaust pipe 100. The positioning component 2 at least includes a positioning seat 21 fixed on the frame 1. A sliding plate 22 is slidably arranged on the positioning seat 21. A positioning plate 23 is fixed on the sliding plate 22. A positioning pin 24 is arranged on the positioning plate 23, and the positioning pin 24 can be inserted into the positioning hole on the flange 101. When the positioning pin is inserted into the positioning hole, it can prevent the radial movement of the exhaust pipe, ensure the accuracy of the position, and improve the yield rate of subsequent size detection.

[0028] The positioning component 2 further includes a slide rail 25 fixed on the positioning seat 21. A slider 26 adapted to the slide rail 25 is arranged on the slide rail 25. The positioning plate 23 is fixed on the slider 26. A support seat 27 is also fixed on the frame 1. A pull rod seat 271 is fixed on the support seat 27. A pull rod 272 is slidably arranged on the pull rod seat 271. One end of the pull rod 272 is fixedly connected to the positioning plate 23, and the other end is pivotally connected to a transmission arm 273. An L-shaped pull handle 274 is also pivotally arranged on the pull rod seat 271. The middle of the pull handle 274 is pivotally connected to the transmission arm 273. By pulling the pull handle 274, the pull rod 272 can be driven to move on the slider 26 through the transmission arm 274. This design is ingenious, the operation is simple and convenient, it is convenient for disassembly, replacement and maintenance, greatly improves the work efficiency, and has a wide range of applicability. In addition, the slide rail and the slider cooperate with each other to improve the stability of the sliding of the positioning plate, make the sliding position more accurate, and improve the accuracy of measurement.

[0029] On the other side of the frame 1, there is a limiting component 3 for limiting the flange 101 on the other side of the exhaust pipe 100. The limiting component 3 at least includes a limiting seat 31 fixed on the frame 1. A limiting plate 32 is fixed on the limiting seat 31. A limiting cylinder 33 is fixed on the outside of the limiting seat 31. A limiting bar 34 is pivotally arranged on the cylinder shaft of the limiting cylinder 33. A first support block 35 is also fixed on the housing of the limiting cylinder 33. A connecting bar 36 is fixed on the first support block 35. The middle of the limiting bar 34 is pivotally arranged on the connecting bar 36. When the limiting cylinder 33 is started, the limiting bar 34 is driven to move, and the other end of the limiting bar 34 can press the flange 101 on the limiting plate 32. The limiting cylinders are evenly distributed around the limiting seat 31, which can make the flange 101 receive uniform force, avoid tilting, and improve the stability.

[0030] The positioning component 2 and the limiting component 3 are both provided with a monitoring component 4 for monitoring the position of the flange 101. The monitoring component 4 at least includes a displacement sensor 41 fixed on the positioning plate 23 and the limiting plate 32. The included angles formed by the adjacent displacement sensors 41 on the positioning plate 23 or the limiting plate 32 and the center of the flange 101 are the same. As described above, the displacement sensors are evenly distributed on the positioning plate 23 and the limiting plate 32, which can ensure the parallelism between the positioning plate and the limiting plate and the flange, thereby ensuring the accuracy of the positions of the positioning component and the limiting component, realizing the real-time monitoring of the position of the exhaust pipe, and further improving the measurement accuracy.

[0031] A set of detection components 5 are also provided on the frame 1. The detection components 5 can be at least partially extended into the through hole 102 of the exhaust pipe 100 under the drive of an external force. Specifically, the detection component 5 at least includes a detection seat 51 fixed on the frame 1. A detection block 52 is fixed on the detection seat 51. A detection strip 53 can be quickly connected to the detection block 52. A pipe through hole 53 is provided on the detection strip 53. A sliding rod 54 is slidably arranged in the pipe through hole 53. A limiting ball 55 is fixed at one end of the sliding rod 54, and a plug 56 adapted to the through hole 102 is fixed at the other end. A return spring 57 is also sleeved on the sliding rod 54. One end of the return spring 57 abuts against the limiting ball 55, and the other end abuts against the detection strip 53. The design is ingenious. By pressing the limiting ball 55 with a manipulator or manually, the plug 56 can be extended into the through hole 102, so as to detect the exhaust pipe that is not adapted to the plug, that is, the diameter of the plug on the exhaust pipe is too small or displaced. This operation is simple and convenient. After the work process, the return spring 57 can drive the plug 56 to move upward, which is convenient for the next processing and greatly improves the work efficiency. If the diameter of the through hole is larger than the diameter of the plug, it is detected in the subsequent airtightness detection. This situation is not the key point considered in the present invention and will not be described here.

[0032] A support block 6 is also fixed on the frame 1. A second support block 61 is fixed on the support block 6. A connecting block 62 is fixed on the second support block 61. A clamping block 63 is fixed on the connecting block 62. A clamping groove 64 adapted to the branch pipe 103 on the exhaust pipe 100 is provided on the clamping block 63 for limiting the branch pipe 103.

[0033] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0034] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation modes of the present utility model, and they are not intended to limit the protection scope of the present utility model. Any equivalent implementation modes or changes made without departing from the technical spirit of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An exhaust pipe through-hole size detection device, comprising a frame (1), characterized in that: The frame (1) is provided with a positioning component (2) for positioning a flange (101) on one side of the exhaust pipe (100) and a limiting component (3) for limiting the flange (101) on the other side of the exhaust pipe (100); the positioning component (2) and the limiting component (3) are both provided with a monitoring component (4) for monitoring the position of the flange (101); the frame (1) is also provided with a group of detection components (5); the detection components (5) can be at least partially extended and placed in the through hole (102) of the exhaust pipe (100) under the drive of an external force.

2. The exhaust pipe through-hole size detection device according to claim 1, characterized in that: The positioning assembly (2) comprises at least a positioning seat (21) fixedly mounted on the frame (1); a slide plate (22) is slidably mounted on the positioning seat (21); a positioning plate (23) is fixedly mounted on the slide plate (22); a positioning pin (24) is mounted on the positioning plate (23); and the positioning pin (24) can be inserted into a positioning hole on the flange (101).

3. The exhaust pipe through-hole size detection device according to claim 2, characterized in that: The positioning assembly (2) also includes a slide rail (25) fixedly mounted on the positioning seat (21), the slide rail (25) being provided with a slider (26) matched therewith, and the positioning plate (23) being fixedly mounted on the slider (26); a support seat (27) is also fixedly mounted on the frame (1), a pull rod seat (271) is fixedly mounted on the support seat (27), a pull rod (272) is slidably mounted on the pull rod seat (271), one end of the pull rod (272) is fixedly mounted on the positioning plate (23), and the other end is pivotally connected to the transmission arm (273); an L-shaped handle (274) is also pivotally mounted on the pull rod seat (271), and the middle part of the handle (274) is pivotally connected to the transmission arm (273).

4. The exhaust pipe through-hole size detection device according to claim 2, characterized in that: The limiting assembly (3) at least comprises a limiting seat (31) fixedly mounted on the frame (1), a limiting plate (32) fixedly mounted on the limiting seat (31); a limiting cylinder (33) fixedly mounted on the outer side of the limiting seat (31), a limiting strip (34) pivotally mounted on the cylinder shaft of the limiting cylinder (33); a first support block (35) fixedly mounted on the housing of the limiting cylinder (33), a connecting strip (36) fixedly mounted on the first support block (35), and a middle pivot of the limiting strip (34) mounted on the connecting strip (36).

5. The exhaust pipe through-hole size detection device according to claim 4, characterized in that: The monitoring assembly (4) comprises at least a displacement sensor (41) fixedly mounted on a positioning plate (23) and a limiting plate (32), wherein adjacent displacement sensors (41) on the positioning plate (23) or the limiting plate (32) form the same angle with the center of the flange (101).

6. The exhaust pipe through-hole size detection device according to claim 1, characterized in that: The detection assembly (5) at least comprises a detection seat (51) fixedly mounted on the frame (1); a detection block (52) fixedly mounted on the detection seat (51); a detection strip quickly connected to the detection block (52); a tube through hole (53) formed on the detection strip; a sliding rod (54) slidably mounted in the tube through hole (53); a stop ball (55) fixedly mounted on one end of the sliding rod (54); and a plug (56) matched with the through hole (102) fixedly mounted on the other end; a return spring (57) is also sleeved on the sliding rod (54); one end of the return spring (57) abuts against the stop ball (55) and the other end abuts against the detection strip.

7. The exhaust pipe through-hole size detection device according to claim 1, characterized in that: The frame (1) is further provided with a support block (6), the support block (6) is provided with a second support block (61), the second support block (61) is provided with a connection block (62), the connection block (62) is provided with a clamping block (63), and the clamping block (63) is provided with a clamping groove (64) adapted to the branch pipe (103) on the exhaust pipe (100).

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