Air bag tube detection jig

Abstract

The utility model relates to the technical field of air bag tube detection, in particular to an air bag tube detection jig. Comprising a square-block-shaped bottom plate, a sleeve is fixedly connected to the center of the upper surface of the bottom plate, a first side hole and a second side hole are formed in the positions, close to the top end, of the two sides of the sleeve respectively, and a pin gauge is arranged in the second side hole. According to the utility model, after the perforated end of the air bag tube is inserted into the sleeve and is in contact with the upper surface of the bottom plate, the pin gauge and the head part are moved towards the direction close to the axis of the sleeve, if the head part can be inserted into the hole in the air bag tube, the air bag tube can be judged to have the hole and the hole position is accurate, and meanwhile, the inner diameter of the hole in the air bag tube is within a tolerance range; the air bag pipe is a qualified product, and if the pin gauge cannot be inserted into the hole in the air bag pipe, the air bag pipe is judged to be an unqualified product, so that a worker can quickly detect the hole in the air bag pipe in this way, the detection time is saved, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air bag pipe detection technical field, concretely relates to an air bag pipe detection fixture. BACKGROUND

[0002] At present, the safety air bag has almost become the standard equipment of the car, and its purpose is to protect the passengers from the impact when the car collides by inflating the air bag in about 0.1 seconds to reduce the damage caused by the collision. The small hole is arranged on the side of the air bag pipe body product, and the position and size of the hole determine the flow and flow direction of the gas. Therefore, after the hole is punched on the side of the air bag pipe in the previous process, the position and size of the hole need to be detected to ensure that the air bag pipe leaving the factory is a good product with qualified quality. Whether the position of the hole is accurate, and whether the inner diameter of the hole is within the tolerance range.

[0003] The punching of the air bag pipe is completed by an automatic device. The punching speed of the automatic device is high, and a large number of air bag pipes are punched in unit time. Each air bag pipe needs to be detected for the side hole. In the prior art, the steps of detecting the side hole are as follows: the pin gauge is inserted through the side hole, and the height of the pin gauge to the end surface of the product is measured by half of the diameter size of the pin gauge plus the height, which is equal to the existing height. Whether the position of the hole on the measured air bag pipe is within the tolerance range, and at the same time, the stop gauge 5 is used to periodically check the side hole of the air bag pipe. The diameter of the stop gauge 5 is greater than the tolerance range of the hole on the air bag pipe. If the stop gauge 5 cannot be inserted into the hole on the air bag pipe, the air bag pipe is judged as a qualified product. If the stop gauge 5 can be inserted into the hole on the air bag pipe, the air bag pipe is judged as an unqualified product. This way of detecting the air bag pipe by using the height gauge together with the pin gauge and the stop gauge 5 is time-consuming and laborious, consumes a lot of labor resources of workers, and increases the labor cost of the factory. At the same time, since the stop gauge 5 is only used in the process of periodic inspection, there is a risk of accidental loss of the stop gauge 5 in the idle state, which causes inconvenience to the detection of the side hole of the air bag pipe. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an air bag pipe detection fixture to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, one of the purposes of the utility model is to provide an air bag pipe detection fixture, which comprises a square-shaped bottom plate, a sleeve is fixedly connected to the center position of the upper surface of the bottom plate, first and second side holes are arranged on both sides of the sleeve near the top end, the axes of the first and second side holes are located on the same straight line, the inner diameter of the first side hole is greater than that of the second side hole, and a pin gauge is arranged in the second side hole.

[0006] As a further improvement of the technical solution, the end of the pin gauge close to the axis of the sleeve is coaxially fixedly connected with a head, the diameter of the head is larger than the diameter of the pin gauge, a limiting ring is fixedly arranged in the second side hole and is sleeved on the pin gauge, the limiting ring is arranged on the side of the head away from the axis of the sleeve, when the head is located in the second side hole, the head is in sliding contact with the inner wall of the second side hole, and the side of the head close to the pin gauge is in contact with the limiting ring.

[0007] As a further improvement of the technical solution, the two side edges of the bottom plate are provided with L-shaped receiving grooves, an L-shaped plate is rotatably arranged in the receiving groove through a rotating shaft, an upper surface of the L-shaped plate is provided with a placing groove, and a stop gauge is arranged in the placing groove, and a limiting mechanism is arranged on one side of the bottom plate, when the L-shaped plate is completely rotated into the receiving groove, the limiting mechanism limits the position of the L-shaped plate in the receiving groove.

[0008] As a further improvement of the technical solution, the limiting mechanism comprises a bent plate slidably arranged on one side of the bottom plate, an extension rod is fixedly connected to the side of the bent plate away from the L-shaped plate, a positioning plate is sleeved on the extension rod, the positioning plate is fixedly arranged on one side of the bottom plate, an end plate is fixedly connected to the other end of the extension rod, a spring is fixedly arranged between the end plate and the positioning plate and is sleeved on the extension rod, the spring drives the end plate to move towards the positioning plate, and when the L-shaped plate is completely rotated into the receiving groove, the bent plate is in contact with the side of the L-shaped plate away from the sleeve.

[0009] As a further improvement of the technical solution, a notch is formed in a corner of the bottom plate, the notch is communicated with the receiving groove, and when the L-shaped plate is completely rotated into the receiving groove, the bent part of the L-shaped plate is arranged on one side of the notch.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] 1、The air bag pipe detection jig, after the air bag pipe is inserted into the sleeve at the punched end and is in contact with the upper surface of the bottom plate, the pin gauge and the head are moved towards the axis of the sleeve, if the head can be inserted into the hole on the air bag pipe, it is judged that the hole on the air bag pipe exists and the hole position is accurate, and the hole inner diameter on the air bag pipe is in the tolerance range, and the air bag pipe is a qualified product, if the pin gauge cannot be inserted into the hole on the air bag pipe, the air bag pipe is judged as unqualified, and workers can quickly detect the hole on the air bag pipe in this way, detection time is saved, and detection efficiency is improved.

[0012] 2、The air bag pipe detection jig, workers insert the gauges into the first side holes every one hour, and move the gauges to the direction close to the sleeve axis, if the gauges cannot be inserted into the holes on the air bag pipe, it is further proved that the air bag pipe is a qualified product, if the gauges can be inserted into the holes on the air bag pipe, it is judged that the air bag pipe is a unqualified product, the sampling inspection mode can help workers to more accurately detect whether the hole diameter of the air bag pipe is within the tolerance range under the premise of not greatly reducing the detection efficiency, and improve the yield of the air bag pipe.

[0013] 3、The air bag pipe detection jig, by placing the idle state gauge in the placement groove, then rotating the L-shaped plate into the storage groove, and then limiting the L-shaped plate from rotating out of the storage groove through the limiting mechanism, the idle state gauge can be stably placed in the storage groove, so that the loss of the gauge is avoided, and the worker can take the gauge when needed, and the detection efficiency of the air bag pipe is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the overall structure of the utility model;

[0015] Figure 2 It is a sectional view of the overall structure of the utility model;

[0016] Figure 3 It is a sectional view of the overall structure of the utility model; Figure 2 It is a structure enlarged view of A in the utility model;

[0017] Figure 4 It is a sectional view of the overall structure of the utility model;

[0018] Figure 5 It is a schematic view of the structure of the L-shaped plate after rotating into the storage groove of the utility model;

[0019] Figure 6 It is a sectional view of the overall structure of the utility model; Figure 5

[0020] Figure 7 It is a sectional view of the overall structure of the utility model; Figure 6 It is a structure enlarged view of B in the utility model;

[0021] Figure 8 It is a schematic view of the structure of the L-shaped plate and the gauge combination of the utility model.

[0022] The meanings of various reference numerals in the drawing are as follows:

[0023] 1, bottom plate; 11, storage groove; 12, notch;

[0024] 2, sleeve; 21, first side hole; 22, second side hole; 23, limiting ring; ​

[0025] 3, pin gauge; 31, head;

[0026] 4, L-shaped plate; 41, rotating shaft; 42, placing groove;

[0027] 5, stop gauge;

[0028] 6, limiting mechanism; 61, bending plate; 62, extension rod; 63, positioning plate; 64, end plate; 65, spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Embodiment 1

[0031] Please refer to Figures 1-8 The utility model discloses a kind of air bag pipe detection fixtures, including square bottom plate 1, the center position of bottom plate 1 upper surface is fixedly connected with sleeve 2, second side hole 22 is opened in the position of sleeve 2 side near top end, the inside of second side hole 22 is provided with pin gauge 3, the end of pin gauge 3 near sleeve 2 axis is coaxially fixedly connected with head 31, the diameter of head 31 is greater than the diameter of pin gauge 3, the diameter of head 31 is less than the hole inner diameter tolerance range on air bag pipe, when worker needs to detect the hole position on air bag pipe and hole inner diameter size, bottom plate 1 side away from sleeve 2 is placed on plane, then worker first rotates and adjusts the position of air bag pipe, make the hole axis of air bag pipe and the axis of second side hole 22 be in the same vertical plane, then the end of air bag pipe punching is inserted into the inside of sleeve 2, until the end of air bag pipe punching contacts with the upper surface of bottom plate 1, at this time, worker moves pin gauge 3 to the direction near sleeve 2 axis, if head 31 can be inserted into the hole on air bag pipe, it can be judged that the hole on air bag pipe and second side hole 22 are in the same axis, that is, there is hole on air bag pipe and hole position is accurate, it can be judged simultaneously that the hole inner diameter on air bag pipe is greater than the diameter of head 31, that is, the hole inner diameter on air bag pipe is in tolerance range, and the air bag pipe is qualified product, if pin gauge 3 cannot be inserted into the hole on air bag pipe, it is judged that there is no hole on air bag pipe or hole position is incorrect or hole inner diameter size is not in tolerance range, and the air bag pipe is unqualified product, worker can quickly detect the hole on air bag pipe in this way, save detection time, improve detection efficiency.

[0032] After the worker completes the detection of an air bag tube, the worker needs to pull the pin gauge 3 away from the axis of the sleeve 2, so that the head 31 is pulled out of the hole on the qualified air bag tube, and then the worker takes out the detected air bag tube from the sleeve 2. If the worker pulls the pin gauge 3 and the head 31 out of the second side hole 22, the worker needs to spend effort and time to insert the head 31 and the pin gauge 3 into the second side hole 22 again for subsequent detection work, which reduces the detection efficiency of the worker on the air bag tube. In order to solve this problem, a limiting ring 23 is fixedly arranged in the second side hole 22 and sleeved on the pin gauge 3. The limiting ring 23 is arranged on the side of the head 31 away from the axis of the sleeve 2. When the worker pulls the pin gauge 3 away from the axis of the sleeve 2, so that the head 31 enters the second side hole 22, the head 31 is removed from the hole on the qualified air bag tube. The head 31 is in sliding contact with the inner wall of the second side hole 22, and the side of the head 31 close to the pin gauge 3 is in contact with the limiting ring 23. At this time, the limiting ring 23 blocks the head 31 from moving away from the axis of the sleeve 2, so that the worker cannot pull the pin gauge 3 and the head 31 out of the second side hole 22, thereby avoiding the situation that the worker pulls the pin gauge 3 and the head 31 out of the second side hole 22, and ensuring the detection efficiency of the worker on the air bag tube.

[0033] In order to improve the accuracy of the worker's detection of the inner diameter of the hole on the air bag tube, a first side hole 21 is arranged on the sleeve 2 at another position close to the top end. The axis of the first side hole 21 and the second side hole 22 is on the same straight line, and the inner diameter of the first side hole 21 is larger than that of the second side hole 22. The diameter of the head 31 is smaller than the tolerance range of the hole on the air bag tube, and the diameter of the stop gauge 5 is larger than the tolerance range of the hole on the air bag tube. During the continuous detection of multiple air bag tubes, the worker performs the following operation every one hour: After the worker inserts the pin gauge 3 into the hole on the air bag tube, the worker pulls the pin gauge 3 out of the hole. Then the worker rotates the air bag tube by 180 degrees transversely, so that the hole on the air bag tube is close to the first side hole 21, and the axis of the hole on the air bag tube is on the same straight line as the axis of the first side hole 21. Then the stop gauge 5 is inserted into the first side hole 21, and the stop gauge 5 is moved towards the axis of the sleeve 2. The diameter of the stop gauge 5 is larger than the tolerance range of the hole on the air bag tube. If the stop gauge 5 cannot be inserted into the hole on the air bag tube, it further proves that the air bag tube is a qualified product. If the stop gauge 5 can be inserted into the hole on the air bag tube, it is judged that the air bag tube is an unqualified product. This sampling method can help the worker more accurately detect whether the inner diameter of the hole on the air bag tube is within the tolerance range without significantly reducing the detection efficiency, and improve the yield of the air bag tube.

[0034] Since the operation of detecting whether the hole diameter on the air bag tube is qualified by using the stop gauge 5 is performed every one hour, the stop gauge 5 is in an idle state for a long time. Since the stop gauge 5 is an elongated round bar structure, the stop gauge 5 in the idle state is easy to roll to a position out of the worker's field of view, causing the stop gauge 5 to be easily lost. To solve this problem, L-shaped storage grooves 11 are formed on the two side edges connected to the bottom plate 1. The inside of the storage groove 11 is rotationally provided with an L-shaped plate 4 through a rotating shaft 41. An upper surface of the L-shaped plate 4 is provided with a placing groove 42. When the placing groove 42 is outside the storage groove 11, the worker places the stop gauge 5 in the idle state in the inside of the placing groove 42, and then rotates the L-shaped plate 4 completely into the inside of the storage groove 11. At this time, the storage groove 11 blocks the placing groove 42, so that the stop gauge 5 cannot move out of the placing groove 42. In order to eliminate the risk of the stop gauge 5 being lost due to the L-shaped plate 4 being rotated out of the storage groove 11, a limiting mechanism 6 is arranged on one side of the bottom plate 1. When the L-shaped plate 4 is completely rotated into the inside of the storage groove 11, the limiting mechanism 6 limits the position of the L-shaped plate 4 in the storage groove 11, so as to stably place the stop gauge 5 in the idle state into the inside of the storage groove 11, thereby avoiding the loss of the stop gauge 5 and ensuring that the worker can take the stop gauge 5 when needed, thereby improving the detection efficiency of the air bag tube.

[0035] The structure of the limiting mechanism 6 is refined as follows. Referring to Figure 7 The limiting mechanism 6 includes a bent plate 61 slidingly arranged on one side of the bottom plate 1. An extension rod 62 is fixedly connected to the side of the bent plate 61 away from the L-shaped plate 4. A positioning plate 63 is sleeved on the extension rod 62. The positioning plate 63 is fixedly arranged on one side of the bottom plate 1. An end plate 64 is fixedly connected to the other end of the extension rod 62. A spring 65 is fixedly arranged between the end plate 64 and the positioning plate 63 and is sleeved on the extension rod 62. The spring 65 drives the end plate 64 to move towards the positioning plate 63. When the L-shaped plate 4 is completely rotated into the inside of the storage groove 11, the bent plate 61 contacts the side of the L-shaped plate 4 away from the sleeve 2. The bent plate 61 blocks the L-shaped plate 4 from rotating away from the sleeve 2, thereby limiting the L-shaped plate 4 from being rotated out of the storage groove 11 and safely and stably storing the stop gauge 5 into the inside of the storage groove 11. When the worker needs to take the stop gauge 5, the worker pushes the bent plate 61 towards the positioning plate 63. The bent plate 61 drives the end plate 64 to move away from the positioning plate 63 through the extension rod 62, so that the spring 65 is elastically stretched. When the bent plate 61 is out of contact with the L-shaped plate 4, the bent plate 61 no longer blocks the L-shaped plate 4 from rotating away from the sleeve 2. The worker can rotate the L-shaped plate 4 out of the storage groove 11, so that the placing groove 42 is exposed to the external environment, thereby achieving the purpose of taking the stop gauge 5 in the placing groove 42.

[0036] In order to facilitate the worker to rotate the L-shaped plate 4, a notch 12 is formed in a corner of the bottom plate 1, the notch 12 is communicated with the receiving groove 11, when the L-shaped plate 4 is completely rotated to the inside of the receiving groove 11, the bending part of the L-shaped plate 4 is arranged at one side of the notch 12, the worker can conveniently and quickly rotate the L-shaped plate 4 out of the receiving groove 11 by pinching the bending part of the L-shaped plate 4, in order to facilitate the worker to take out the stop gauge 5 from the placing groove 42, the placing groove 42 extends to the end of the L-shaped plate 4 away from the rotating shaft 41, the worker inserts fingers into the inside of the placing groove 42 to press the stop gauge 5, then the worker pushes the stop gauge 5 to the direction away from the bending part of the L-shaped plate 4 by using the friction force between the fingers and the stop gauge 5, so that the stop gauge 5 can be quickly taken out from the placing groove 42, the purpose of using the stop gauge 5 to randomly check the air bag tube is achieved, and the efficiency of the worker to randomly check the air bag tube is ensured.

[0037] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An airbag tube detection jig comprising a square bottom plate (1), characterized in that: The center position of the upper surface of the bottom plate (1) is fixedly connected with a sleeve (2), first and second side holes (21) and (22) are respectively arranged at the positions close to the top end on the two sides of the sleeve (2), the axes of the first and second side holes (21) and (22) are located on the same straight line, the inner diameter of the first side hole (21) is larger than that of the second side hole (22), and a pin gauge (3) is arranged in the second side hole (22).

2. The airbag tube inspection jig according to claim 1, characterized by: The end close to the axis of the sleeve (2) of the pin gauge (3) is fixedly connected with a head (31) in a coaxial mode, the diameter of the head (31) is larger than that of the pin gauge (3), a limiting ring (23) is fixedly arranged in the second side hole (22) and sleeved on the pin gauge (3), the limiting ring (23) is arranged on the side, away from the axis of the sleeve (2), of the head (31), when the head (31) is located in the second side hole (22), the head (31) is in sliding contact with the inner wall of the second side hole (22), and the side, close to the pin gauge (3), of the head (31) is in contact with the limiting ring (23).

3. The airbag tube inspection jig according to claim 1, characterized by: L-shaped accommodation grooves (11) are arranged on the two side edges of the bottom plate (1), an L-shaped plate (4) is rotatably arranged in the L-shaped accommodation groove (11) through a rotating shaft (41), a placing groove (42) is arranged on the upper surface of the L-shaped plate (4), a stop gauge (5) is arranged in the placing groove (42), a limiting mechanism (6) is arranged on one side of the bottom plate (1), and the limiting mechanism (6) limits the position of the L-shaped plate (4) in the L-shaped accommodation groove (11) when the L-shaped plate (4) is completely rotated into the L-shaped accommodation groove (11).

4. The airbag tube inspection jig according to claim 3, characterized by: The limiting mechanism (6) comprises a bent plate (61) which is slidably arranged on one side of the bottom plate (1), an extension rod (62) which is fixedly connected with the side, away from the L-shaped plate (4), of the bent plate (61), a positioning plate (63) which is sleeved on the extension rod (62), the positioning plate (63) being fixedly arranged on one side of the bottom plate (1), an end plate (64) which is fixedly connected with the other end of the extension rod (62), a spring (65) which is fixedly arranged between the end plate (64) and the positioning plate (63) and sleeved on the extension rod (62), and the spring (65) drives the end plate (64) to move towards the positioning plate (63), and the bent plate (61) is in contact with the side, away from the sleeve (2), of the L-shaped plate (4) when the L-shaped plate (4) is completely rotated into the L-shaped accommodation groove (11).

5. The airbag tube inspection jig according to claim 3, characterized by: A notch (12) is arranged at a corner of the bottom plate (1), the notch (12) is communicated with the L-shaped accommodation groove (11), and the bent part of the L-shaped plate (4) is arranged at one side of the notch (12) when the L-shaped plate (4) is completely rotated into the L-shaped accommodation groove (11).

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