Exhaust pipe elbow hole site detection tool

Abstract

The utility model discloses an exhaust pipe bent pipe hole site detection tool, which comprises a detection platform, a first detection seat is arranged on the detection platform, a pipe orifice limiting hole is arranged in the first detection seat, a circumferential sensor mounting part is arranged above the first detection seat, a plurality of mounting holes are arranged on the sensor mounting part at intervals, and the sensor mounting part is connected with the first detection seat. The mounting hole is used for connecting a hole position sensor; the detection platform is provided with a second detection seat on one side of the first detection seat, the second detection seat is higher than the first detection seat, and a pipe orifice directional supporting part is arranged above the second detection seat. According to the exhaust pipe elbow hole site detection tool, through the arrangement of the first detection seat and the second detection seat, hole site and shape detection can be rapidly carried out on elbow parts, the use is simple and convenient, the detection efficiency of batch elbow parts can be greatly improved, and defective parts are prevented from entering the next process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile exhaust pipe production, in particular to an exhaust pipe elbow hole position detection tool. BACKGROUND

[0002] The exhaust pipe is a kind of common parts in automobile exhaust system, and its form is various, there are straight tube type, elbow type, also have hole type, no hole type, no matter what form, it needs to be quality inspected after being made in production process.For hole type elbow exhaust pipe, such as the exhaust pipe elbow shown in the specification, it is punched with a plurality of pipe holes 101 around the lower pipe opening, the number and position of these pipe holes are very important, therefore, quality inspection is needed to ensure that the number and position are correct. Figure 1

[0003] The existing quality inspection mode is mainly manual detection, which needs to confirm the number of pipe holes and use tools to detect whether the position of pipe hole is correct, and the detection efficiency is low and laborious, and visual recognition system is also used for automatic detection, and the whole visual inspection system is complex in structure and high in cost, which is not economical for small and medium-sized factories. SUMMARY

[0004] The utility model discloses a kind of exhaust pipe elbow hole position detection tools to solve the problems existing in prior art.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] Exhaust pipe elbow hole position detection tool, including detection platform, the detection platform is equipped with first detection seat, the first detection seat is equipped with pipe opening limiting hole, the first detection seat is equipped with the circumferential sensor installation part above, the sensor installation part is arranged with a plurality of installation holes at intervals, and the installation hole is used to connect hole position sensor;The detection platform is equipped with second detection seat on one side of the first detection seat, the height of the second detection seat is higher than the first detection seat, and the upper side of the second detection seat is equipped with pipe opening directional support part.

[0007] The exhaust pipe elbow hole position detection tool can quickly detect the hole position and shape of elbow parts by the first detection seat and the second detection seat, is simple and convenient to use, can greatly improve the inspection efficiency of batch elbow parts, avoids that defective parts enter next process;And the whole detection tool structure is simple, easy to manufacture and install, and low in cost.

[0008] ​The cooperation of the first detection seat and the second detection seat can just clamp the two end openings of the exhaust pipe elbow, one of which (the opening with holes around the opening) is inserted into the opening limiting hole, and the other just falls on the opening directional support part. If the bending shape of the elbow is not accurate or the opening inserted into the opening limiting hole is wrong, it cannot be normally inspected. The purpose of this design is to check whether the bending shape and the approximate size of the elbow are correct, and to prevent the worker or the mechanical arm from inserting the opening of the elbow in reverse and continuing the next hole inspection, so as to avoid misjudgment.

[0009] The hole position sensor can quickly detect the holes around the lower opening. The positions of these hole position sensors are the positions around the opening where the holes are designed. If the positions of the holes around the opening of the inserted elbow are incorrect or the number of the holes is incorrect, these hole position sensors cannot normally detect them, and the elbow will be determined as unqualified parts.

[0010] Further, a plurality of installation holes are arranged circumferentially, and the hole position sensors are radially and horizontally arranged.

[0011] Further, a circumferential step structure is arranged in the first detection seat, the middle part of the step structure forms the opening limiting hole, and the outer periphery of the upper part of the step structure forms the sensor mounting part.

[0012] Further, the hole position sensor is an optical sensor with an external thread, which is fixed to the installation hole through a nut, facilitating connection, installation and adjustment.

[0013] Further, a limiting plane is arranged on the outer periphery of the side of the first detection seat close to the second detection seat, a limiting column is arranged on the detection platform and abuts against the limiting plane, and a vertical section is arranged on the outer periphery of the side of the first detection seat away from the second detection seat, which can play a role in installation error prevention.

[0014] Further, the opening directional support part is a U-shaped clamping opening arranged on the second detection seat, the U-shaped clamping opening is arranged obliquely, and a proximity sensor is further arranged at the bottom of the U-shaped clamping opening to detect the position of the upper opening of the elbow.

[0015] Further, the first detection seat and the second detection seat are respectively integrated metal structural members, and are connected to the detection platform through bolts.

[0016] In some embodiments, the first detection seat comprises a central seat body connected with the detection platform, a replaceable movable seat body is inserted on the central seat body, a stepped structure on the inner periphery of the movable seat body is lapped on the central seat body, a plurality of first latches are arranged below the stepped structure, and a plurality of first insertion holes connecting the first latches are arranged on the central seat body.

[0017] In some embodiments, the second detection seat comprises a lower support seat connected with the detection platform, and an H-shaped support seat is inserted on the lower support seat, the H-shaped support seat is provided with the pipe orifice directional support part, the bottom of the leg of the H-shaped support seat is provided with a second latch, and a second insertion hole connecting the second latch is arranged on the lower support seat.

[0018] Compared with the prior art, the utility model has the advantages that: 1, the exhaust pipe elbow hole detection tool can quickly detect the hole position and shape of the elbow part through the arrangement of the first detection seat and the second detection seat, is simple and convenient to use, can greatly improve the inspection efficiency of batch elbow parts, avoids that the defective parts enter the next process, and the whole detection tool structure is simple, easy to manufacture and install, and low in cost;2, the first detection seat and the second detection seat are matched and arranged, can just be clamped with the two end pipe orifices of the exhaust pipe elbow, if the bending shape of the elbow is not accurate or the pipe orifice inserted into the pipe orifice limiting hole is wrong, the elbow cannot be normally inspected;The purpose of such design is that on the one hand, the bending shape and the approximate size of the elbow are inspected, and on the other hand, mistake-proof design is achieved, so that the worker or the mechanical arm does not insert the pipe orifice of the elbow reversely and continue to carry out the next pipe hole inspection, so as to avoid misjudgment;3, the hole position sensor can quickly detect the pipe holes around the lower pipe orifice, if the position or the number of the pipe holes around the pipe orifice of the inserted elbow is incorrect, the elbow cannot be normally detected by the hole position sensor, and the elbow is determined as unqualified parts;4, the first detection seat and the second detection seat are arranged in the form of detachable and replaceable, so that the application range is increased, and detection is carried out for different pipe diameters and pipe holes. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of an exhaust pipe elbow;

[0020] Figure 2 It is a whole structure schematic view of the utility model exhaust pipe elbow hole detection tool;

[0021] Figure 3 It is a structure schematic view of the exhaust pipe elbow arranged on the detection tool;

[0022] Figure 4It is a structure schematic view of the first detection seat of the utility model;

[0023] Figure 5 It is another arrangement structure schematic view of the first detection seat of the utility model;

[0024] Figure 6 It is another connection structure schematic view of the first detection seat of the utility model;

[0025] Figure 7 It is another connection structure schematic view of the second detection seat of the utility model;

[0026] In the figure: 1, exhaust pipe elbow; 101, pipe hole; 2, detection platform; 3, first detection seat; 4, pipe mouth limiting hole; 5, sensor mounting portion; 6, hole position sensor; 7, second detection seat; 8, pipe mouth directional support portion; 9, step structure; 10, limiting plane; 11, limiting column; 12, vertical section; 13, center seat body; 14, movable seat body; 15, first bolt; 16, first plug-in hole; 17, lower support seat; 18, H-shaped support seat; 19, proximity sensor; 20, second bolt; 21, second plug-in hole. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] In the description of the utility model, it should be explained that the terms "intermediate", "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Embodiment 1

[0029] As Figures 2-4As shown, an exhaust pipe elbow hole position detection tool, including a detection platform 2, the detection platform 2 is provided with a first detection seat 3, the first detection seat 3 is provided with a pipe mouth limiting hole 4, the first detection seat 3 is provided with a circumferential sensor mounting portion 5, the sensor mounting portion 5 is provided with a plurality of mounting holes, the mounting hole is used for connecting the hole position sensor 6; The detection platform 2 is provided with a second detection seat 7 on one side of the first detection seat 3, the height of the second detection seat 7 is higher than that of the first detection seat 3, and the upper side of the second detection seat 7 is provided with a pipe mouth directional support portion 8.

[0030] The exhaust pipe elbow hole position detection tool can quickly detect the hole position and shape of the elbow part through the setting of the first detection seat 3 and the second detection seat 7, is simple and convenient to use, can greatly improve the inspection efficiency of batch elbow parts, and avoids that the defective parts enter the next process; Moreover, the whole detection tool structure is simple, easy to manufacture and install.

[0031] The first detection seat 3 and the second detection seat 7 are matched and arranged, can be clamped with the two end pipe mouths of the exhaust pipe elbow 1, one of the pipe mouths (the pipe mouth provided with the pipe hole 101 around) is inserted into the pipe mouth limiting hole 4, and the other pipe mouth is just fallen on the pipe mouth directional support portion 8. Since the first detection seat 3 and the second detection seat 7 are manufactured and arranged according to the elbow standard part, and the bending direction of the elbow is designed, only the elbow with correct shape and correct insertion can be clamped with the pipe mouth limiting hole 4 and the pipe mouth directional support portion 8 at the same time, if the bending shape of the elbow is not accurate or the pipe mouth inserted into the pipe mouth limiting hole is incorrect, the elbow cannot be normally inspected. The purpose of this design is to inspect whether the bending shape and the approximate size of the elbow are correct, and to prevent mistake design, so as to avoid that the worker or the mechanical arm inserts the pipe mouth of the elbow reversely and continues to perform the next pipe hole inspection, so as to avoid misjudgment.

[0032] The sensor mounting portion 5 is arranged on the first detection seat 3, and a plurality of hole position sensors 6 are connected, so that the pipe hole 101 around the lower pipe mouth can be quickly detected. The positions of these hole position sensors 6 are all positions around the pipe mouth where the pipe hole needs to be designed. If the positions of the pipe holes around the pipe mouth of the inserted elbow are incorrect or the number of the pipe holes is incorrect, the elbow cannot be normally detected by these hole position sensors, and the elbow will be determined as unqualified part.

[0033] At the same time, the other end pipe mouth of the elbow is clamped on the pipe mouth directional support portion 8, and the pipe mouth directional support portion 8 can simply detect and judge the size and shape of the pipe mouth of the end, for example, if the outer diameter of the end pipe mouth is too large, the pipe mouth cannot be normally clamped, and if the outer diameter is too small, the pipe mouth will obviously shake, and the like, and the subsequent detection can be performed by the sensor.

[0034] Further, a plurality of said mounting holes are arranged circumferentially, said hole position sensors 6 are arranged radially horizontally, the positions of said hole position sensors 6 are set according to the positions of the pipe holes on the actual detected pipe standard part, and the outer peripheries of these pipe holes are substantially in the same plane when the pipe opening is inserted into said pipe opening limiting hole.

[0035] Further, said first detection seat 3 is provided with a circumferential step structure 9, said pipe opening limiting hole 4 is formed in the middle of said step structure 9, and the upper outer periphery of said step structure 9 forms said sensor mounting portion 5.

[0036] Through the arrangement of said step structure 9, a plurality of concentric circles with different inner diameters can be formed in said first detection seat 3, the middle one is said pipe opening limiting hole 4, and the upper large circumference is said sensor mounting portion 5.

[0037] Further, said hole position sensor 6 is an optical sensor with an external thread, and said optical sensor is fixed to said mounting hole through a nut.

[0038] This optical sensor with an external thread can be conveniently arranged in said mounting hole, adjusted according to the different extension distances, and then fixed through a nut, which is very convenient to use. In this way, the signal lines of the optical sensors are connected to the same upper computer or PLC controller, which can receive the signals detected by them. If there is a pipe hole on the outer periphery of the pipe opening, said optical sensor can identify it, and if there is no pipe hole, the outer periphery of the pipe wall will block the light, so that it can be judged that there is no hole. In the embodiment, said optical sensor can be a micro laser sensor produced by Xinshe Electrical.

[0039] Further, a limiting plane 10 is arranged on the outer periphery of said first detection seat 3 close to said second detection seat 7, a limiting column 11 is arranged on said detection platform 2 and abuts against said limiting plane 10, and a vertical section 12 is arranged on the outer periphery of said first detection seat 3 away from said second detection seat 7.

[0040] The arrangement of said vertical section 12 changes the cylindrical appearance of the first detection seat into an asymmetric structure, which can prevent mistakes and prevent errors, avoiding the installation of the component in the wrong way. If the structure is completely symmetrical, it is not easy to find the mistake. Said limiting plane 10 is a part of the plane structure below the outer periphery, which, together with said limiting column 11, plays a limiting role and can also prevent mistakes.

[0041] Further, said pipe opening directional support portion 8 is a U-shaped clamp arranged on said second detection seat 7, said U-shaped clamp is arranged obliquely, and a proximity sensor 19 is further arranged at the bottom of said U-shaped clamp.

[0042] The opening of the U-shaped notch is upward, facilitating the placement of the elbow pipe into the detection tool from top to bottom. The inner periphery of the U-shaped notch is designed to match the size of the outer periphery of the upper pipe opening of the elbow pipe, and can just clamp the upper pipe opening of the elbow pipe, and the bottom can just support the pipe opening. If the curvature and shape of the elbow pipe are correct, the elbow pipe will be clamped and supported in a very suitable manner.

[0043] The proximity sensor 19 is arranged at the bottom of the U-shaped notch. On the one hand, it can identify whether the elbow pipe is placed for starting detection. On the other hand, it can detect the distance between the upper pipe opening of the elbow pipe and the bottom of the U-shaped notch. If the elbow pipe is not bent in place, the distance will be abnormal.

[0044] Further, the first detection seat 3 and the second detection seat 7 are respectively one-piece metal structural members, and are connected to the detection platform by bolts.

[0045] When the exhaust pipe elbow hole detection tool is used, first, the first detection seat 3 and the second detection seat 7 are correctly installed on the detection platform according to the design. Then, the hole position sensor 6 is connected, installed and debugged. Subsequently, batch detection work is performed. The exhaust pipe elbow 1 to be detected is grasped by a person or a mechanical arm. The end of the exhaust pipe elbow 1 processed with the pipe hole 101 is inserted into the pipe opening limiting hole 4 of the first detection seat 3. The hole position sensor 6 performs identification work. If the number and position of the holes are correct, it is judged that the hole position of the exhaust pipe elbow is normal. If any hole position identification is abnormal, it is judged as unqualified product and needs to be reworked. This identification process only takes a few seconds, and the detection work of batch exhaust pipe elbows can be completed by frequent taking and placing. Example 2

[0046] The difference between this embodiment and example 1 is that the first detection seat and the second detection seat are arranged in a detachable and replaceable form, which can increase the application range and detect different pipe diameters and pipe holes.

[0047] Specifically, as shown in Figures 5-7 The first detection seat 3 includes a center seat body 13 connected to the detection platform 2. The center seat body 13 is inserted with a replaceable movable seat body 14. The step structure 9 on the inner periphery of the movable seat body 14 is lapped on the center seat body 13. A plurality of first latches 15 are arranged below the step structure 9. A plurality of first insertion holes 16 connected to the first latches 15 are arranged on the center seat body 13. Vertical sections 12 and limiting planes 10 are arranged on the outer periphery of the movable seat body 14.

[0048] Through the matching arrangement of the center seat body 13 and the movable seat body 14, the movable seat body 14 can be quickly disassembled to replace the movable seat body of different sizes to adapt to exhaust pipe bends of different sizes. The main difference of the movable seat body 14 is that the inner diameter of the pipe opening limiting hole is different, and the mounting hole, that is, the setting position and number of the hole sensor are different, so that more models of exhaust pipe bends can be detected.

[0049] Under the limiting of the limiting plane 10 and the limiting column 11, and under the cooperation of the first bolt 15 and the first plug hole 16, the movable seat body 14 can be relatively fixedly sleeved on the center seat body 13 and cannot shake and rotate; a plug-in mode from top to bottom is adopted, so that connection and disconnection are relatively convenient, and the requirement of quick disassembly and quick assembly can be met.

[0050] The first detection seat is arranged as a replaceable living structure, and the second detection seat is also arranged as a replaceable living structure. The second detection seat 7 comprises a lower support seat 17 connected with the detection platform 2, and an H-shaped support seat 18 plugged on the lower support seat 17, the H-shaped support seat 18 is provided with the pipe opening directional support part 8, the middle part of the H-shaped support seat 18 is provided with the proximity sensor 19, the bottom of the leg of the H-shaped support seat 18 is provided with a second bolt 20, and the lower support seat 17 is provided with a second plug hole 21 connected with the second bolt 20. Through the arrangement of the plug-in connection mode of the H-shaped support seat 18, the H-shaped support seat 18 can be quickly replaced according to needs.

[0051] The first bolt 15 and the first plug hole 16, and the second bolt 20 and the second plug hole 21 are arranged in a corresponding and matched manner, so as to effectively connect two components. In some embodiments, in order to improve the stability of the connection, the first bolt and the second bolt can be arranged in a magnetic attraction mode, such as arranging the bolt as a magnet or arranging a magnet in the plug hole, so as to better connect in the first plug hole and the second plug hole.

[0052] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A fixture for detecting the bend position of an exhaust pipe, including a detection platform, characterized in that, The detection platform is provided with a first detection seat, which has a pipe opening limiting hole. A circumferential sensor mounting part is provided above the first detection seat. The sensor mounting part has a plurality of mounting holes arranged at intervals for connecting hole position sensors. The detection platform is provided with a second detection seat on one side of the first detection seat. The height of the second detection seat is higher than that of the first detection seat. A pipe opening orientation support part is provided above the second detection seat.

2. The exhaust pipe bend hole detection fixture according to claim 1, characterized in that, The mounting holes are arranged at circumferential intervals, and the hole position sensors are all arranged radially horizontally.

3. The exhaust pipe bend hole detection fixture according to claim 1, characterized in that, The first detection seat has a circumferential stepped structure, the tube opening limiting hole is formed in the middle of the stepped structure, and the sensor mounting part is formed on the upper outer periphery of the stepped structure.

4. The exhaust pipe bend hole detection fixture according to claim 1, characterized in that, The hole position sensor is a photoelectric sensor with an external thread on its housing, and the photoelectric sensor is fixed to the mounting hole by a nut.

5. The exhaust pipe bend hole detection fixture according to claim 1, characterized in that, The first detection seat has a limiting plane on its outer periphery near the second detection seat, and the detection platform has a limiting post that abuts against the limiting plane; the first detection seat has a vertical cut surface on its outer periphery away from the second detection seat.

6. The exhaust pipe bend hole detection fixture according to claim 1, characterized in that, The orifice directional support is a U-shaped bayonet set on the second detection seat. The U-shaped bayonet is arranged at an angle, and a proximity sensor is also provided at the bottom of the U-shaped bayonet.

7. The exhaust pipe bend hole detection fixture according to claim 1, characterized in that, The first detection seat and the second detection seat are both integral metal structural components, which are connected to the detection platform by bolts.

8. The exhaust pipe bend hole detection fixture according to claim 1, characterized in that, The first detection seat includes a central seat body connected to the detection platform. A replaceable movable seat body is inserted into the central seat body. A stepped structure on the inner periphery of the movable seat body overlaps the central seat body. Several first pins are provided below the stepped structure. Several first insertion holes for connecting the first pins are provided on the central seat body. Vertical cut surfaces and limiting planes are provided on both sides of the outer periphery of the movable seat body.

9. The exhaust pipe bend hole detection fixture according to claim 1, characterized in that, The second detection seat includes a lower support seat connected to the detection platform and an H-shaped support seat inserted into the lower support seat. The H-shaped support seat is provided with the pipe orifice orientation support part. The bottom of the support leg of the H-shaped support seat is provided with a second pin. The lower support seat is provided with a second insertion hole for connecting the second pin.

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