JPH0726742U - Intake and exhaust pipe inspection device for internal combustion engine - Google Patents

Abstract

(57) [Abstract] [Purpose] This is a device for inspecting protrusions and the like in the intake and exhaust pipes of internal combustion engines due to casting flash, and it is extremely easy and can be inspected in a short time, and defective products are not overlooked. Provide a device. [Structure] On the upper part of the stand where the intake and exhaust pipes are set, a ball stand is provided which is inclined downward as it is closer to the same stand, and a ball fall path is provided under the stand, and the lower end of this communication path and the above The balls were connected by an elevator, and balls that passed through the intake and exhaust pipes were provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is used in the casting industry and the like. The present invention relates to an intake / exhaust pipe inspection device for an internal combustion engine.

[0002]

[Prior art]

 The intake and exhaust pipes of internal combustion engines such as automobiles have a complicated shape and are generally manufactured by casting. Therefore, a flash such as a protrusion may be formed inside the intake and exhaust pipes. In this case, the intake and exhaust pipes of the intake and exhaust pipes are hindered from being sucked and exhausted satisfactorily due to the projections and the like, and the normal engine output is hindered. Therefore, it is necessary to inspect the inside of the intake and exhaust pipes of an internal combustion engine manufactured by casting. As an inspection method, first, a method using an endoscope or a method of inserting a flexible synthetic resin rod or a spiral tube is performed.

[0003]

[Problems to be solved by the device]

 However, each of the above conventional methods has the following drawbacks. First of all, the endoscopic method is troublesome, requires a long time, and is not efficient.

In addition, in the method of inserting a flexible synthetic resin rod or a spiral tube, it is difficult to make an accurate determination because the presence or absence of the protrusion is determined by the operator. For this reason, the projections and the like are overlooked.

The present invention has been made to solve the above problems, and its purpose is a trouble-free and extremely easy method, thus improving work efficiency and avoiding the operator's intuition. Therefore, it is an object to provide an inspection device for intake and exhaust pipes of an internal combustion engine that does not overlook protrusions and the like.

[0006]

[Means for Solving the Problems]

 This invention which achieves the above-mentioned object is described as follows: a stand 1 for setting intake and exhaust pipes; a ball having an upward slope on the outside, which is provided in communication with the upper and lower parts of the stand 1, respectively. The base 2 and the ball falling path 3; the ball end 5 of the falling path 3 and the ball elevator 5 provided in the vertical direction corresponding to the ball base 2; and balls 6 that pass through the suction and exhaust pipes. An inspection device for intake and exhaust pipes of an internal combustion engine, which is characterized in that

The ball base 2 has a shutter 7 for controlling the passage of the balls 6 and a detection device 8 for detecting the balls 6, and the falling passage 3 has a detection device 9 for detecting the balls. Further, the elevator 5, the shutter 7, the detection device 8, and the detection device 9 of the ball 6 are automatically controlled by a sequence and are sucked by the internal combustion engine which is connected to a control device 11 having an informing device 10, Exhaust pipe inspection device.

[0008]

[Action]

 This invention is constructed as described above, the suction and exhaust pipes are set in the stand 1, the balls 6 are sucked from the stand 2 of the stand 1 and put into the exhaust pipe, and they fall inside and appear in the falling passage 3. Next, it is stored in the bucket of the elevator 5. The bucket containing the balls 6 rises and supplies the balls 6 to the base 2.

This makes it possible to know the presence or absence of obstacles such as the internal projections of the suction and exhaust pipes. Therefore, the work is extremely easy, the work efficiency is high, the work time is short, and the independence of intuition is not required, so that it is possible to provide the inspection device for the intake and exhaust pipes of the internal combustion engine without overlooking the defective product.

Further, a control device 11 is provided to automatically operate the presence or absence of the balls 6 on the base 2, the opening / closing of the shutter 7, the detection of the balls 6 on the falling passage 3, the raising / lowering of the elevator 5, etc. based on a sequence. What you do can be tested more efficiently.

[0011]

【Example】

 In FIG. 1, 1 is a stand for setting the intake and exhaust pipes, 1a is a lower receiving part, 1b is an upper receiving part, and the exhaust pipe 12 is set by contacting both receiving parts 1a, 1b. It has become so. Although not shown in the figure, both of the receiving portions 1a and 1b can receive the upper and lower left and right sides of the exhaust pipe 12 with a minute interval. That is, a jig is formed.

Although the exhaust pipe 12 is shown in FIG. 1, it may be an intake pipe. However, in this case, the table 1 is substantially the same although the shape is slightly changed. (Not shown).

Then, as shown in FIG. 2, the exhaust pipe 12 is placed with the part 13 that is divided into individual parts upward. In FIG. 1, reference numeral 2 denotes a pedestal provided on the upper part of the table 1, which is provided with an inclination such that the direction close to the table 1 is downward. The base 2 is formed long in the direction of the paper surface and the paper spine in FIG. 1, and is formed long corresponding to the positions corresponding to the first to fourth ports 14 to 17 of the exhaust pipe 12 in FIG. Reference numeral 18 denotes a guide plate, which is not shown in the figure, but a large number is provided on the base 2 to guide the balls 6 in front of the first to fourth ports 14 to 17. . 6 is a ball as described above, and a steel ball is used as an example. However, it does not matter if an appropriate ball such as a glass ball or a ceramic ball is used.

Next, 8 is a detection device for detecting the presence or absence of the ball 6 on the ball base 2. As an example, a proximity switch is used. The presence or absence of each ball 6 is detected, and the information is provided to the control device 11. Reference numeral 7 denotes a shutter. Since the shutters 7 are also arranged side by side, the other ones do not appear in the figure, but four are independently provided inside the passage formed by the guide plate 18, respectively. Is formed so as to be opened and closed by an air cylinder 20, and the air cylinder 20 is operated by a solenoid valve 21 as an example.

The solenoid valve 21 is connected to the control device 11 and is operated by the control device 11 sequentially. Reference numeral 22 denotes an air compressor, which is connected to the electromagnetic valve 21 and other electromagnetic valves 21a and 21b, which will be described later, in addition to the electromagnetic valve 21. Then, when the exhaust pipe 12 is set on the stand 1 and all four balls 6 on the base 2 are confirmed, the shutter 7 is sequentially opened at predetermined intervals by a sequence built in the control device 11. It is supposed to be done. 3 is a falling passage provided in the lower part of the stand 1. The balls 6 inserted from the first to fourth ports 14 to 17 sequentially fall in the exhaust pipes 12, and all of the balls It goes out to the falling passage 3 of the book, falls in the passage 3, and is detected by a detection device 9 provided above the passage 3, and this information is sent to the control device 11. A proximity switch was used as the detection device 9 as an example.

The ball 6 detected by the detection device 9 is already known in the control device 11 from which of the first to fourth ports 14 to 17 the ball has been thrown in. When the detection device 9 does not detect the ball 6, the control device 11 can know which port has a projection or the like in the tube, the display device 19 displays the port number, and the lamp, The alarm device 10 such as a buzzer is activated, and the operation thereafter is stopped.

Then, the exhaust pipe 12 in which the protrusions inside the pipe are generated is excluded as a defective product. Next, when all of the balls 6 thrown in through the respective ports 14 to 17 are detected by the detector 9, the balls 6 are accommodated in the bucket 25 of the elevator 5 in parallel.

Then, the bucket 25 of the elevator 5 rises according to a command from the control device 11, reaches the above-mentioned ball base 2, the tilting cylinder 23 operates, and four balls 6 are supplied onto the ball base 2. The base 2 has the guide plate 18 as described above, and the guide plate 18 guides each supplied ball 6 so as to reach the front surface of each shutter 7 on the front surface of each of the ports 14 to 17. .

While the ball 6 is stopped in contact with each shutter 7, the exhaust pipe 12 to be inspected is replaced with another exhaust pipe 12 on the mounting table 1. Then, the shutter 7 is sequentially opened, the balls 6 are inserted from the ports 14 to 17, and the same operation as the previous time is repeated. Then, such work is performed based on the sequence of the control device 11 as described above. 11a shows a terminal. The operation of the compressor 22 is also performed based on a sequence, and the solenoid valves 21, 21a and 21b in FIG. 1 are also the same. Reference numeral 24 denotes an air passage leading to each of the solenoid valves 21, 21a and 21b. Although the above description has been made with the exhaust pipe 12, the same applies to the case of inspecting the intake pipe, and therefore the description thereof is omitted.

[0020]

[Effect of device]

 Since the present invention is configured as described above, the inside of the intake and exhaust pipes of the internal combustion engine can be inspected very easily and in a short time. Moreover, the inspection is performed mechanically without relying on the intuition of the worker, so it is possible to avoid overlooking defective products.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention and schematically showing an intake / exhaust pipe inspection device for an internal combustion engine.

FIG. 2 is a front view of an exhaust pipe inspected by the inspection apparatus of the present invention showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stand 2 Ball base 3 Falling path 4 Terminal part 5 Elevator 6 Ball 8 Detection device 9 Detection device 10 Notification device 11 Control device

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Takashi Kasuga 72-6 A-10, Mikoto Shinonoi, Nagano City, Nagano Prefecture A-10 (72) Masaaki Tanikawa, 31-14 Shimizu Town, Sakado City, Saitama Prefecture

Claims (2)

[Scope of utility model registration request] 1. A table 1 for setting intake and exhaust pipes; a ball table 2 and a ball falling path 3 which are provided so as to communicate with an upper portion and a lower portion of the table 1, respectively, and have an outer upward slope.
A ball elevator 5 provided vertically corresponding to the end portion 4 of the falling passage 3 and the ball base 2; a ball 6 for sucking and passing through an exhaust pipe; , Exhaust pipe inspection equipment. 2. The ball base 2 has thereon a shutter 7 for controlling the passage of the balls 6 and a detector 8 for detecting the balls 6, and the falling passage 3 has a ball detector 9 for detecting the balls 6. The internal combustion engine according to claim 1, further comprising: an elevator 5 for the balls 6, the shutter 7, the detection device 8, and the detection device 9, each of which is automatically controlled by a sequence and has a notification device 10. Inspection device for engine intake and exhaust pipes.