JPS6325063Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The disclosed technology belongs to the structural technology field of a device that simultaneously supplies and assembles a plurality of piston rings to a piston used in an engine of a vehicle such as an automobile.

Therefore, in this invention, an extrusion plate, which is provided so as to be able to reciprocate via an actuator with respect to the piston ring of the magazine supply port that stores the piston ring, approaches and separates from the ring expansion and assembly device installed in front of the magazine. This invention relates to a device that feeds piston rings to a ring expansion and assembly device and assembles them to the piston by being flexible, and in particular, an oil ring magazine that is arranged in the same direction as the ring expansion and assembly device. A pair of upper and lower compression magazines facing each other are both vertically disposed, and an oil ring extrusion plate for the oil ring at the supply port of the oil ring magazine is formed into a slit over its advancing and retracting stroke. It passes through the outside of the compression ring magazine through the slit, and a pair of upper and lower compression ring extrusion plates for the pair of compression rings at the supply ports of the pair of compression ring magazines are layered to form an actuator. This invention relates to a supply and assembly device for connected piston rings.

<Prior art> As is well known, the piston of the engine of a vehicle such as an automobile has a compression stroke of the piston from the top, and
Multiple compression rings are installed to prevent gas leakage during the explosion stroke, and an oil ring is installed to scrape off excess oil from the cylinder wall and prevent it from entering the combustion chamber. It is designed to slide in close contact with the cylinder wall.

As shown in FIG. 1a, the conventional piston ring oil ring supply and assembly device 1 inserts the oil rings 2, 2... into the oil ring magazine 3 and pushes the oil rings 2 out of the supply port 4. The oil ring 2 is supplied by the extrusion plate 5 to the ring expansion assembly device 6a provided in front of the magazine 3, with the plate 5 being able to reciprocate laterally.
is assembled into the third ring groove 8 of the piston 7.

Further, as shown in FIG. 1b, the piston ring compression ring supply and assembly device 9 inserts the compression ring 10 into a pair of compression ring magazines 11 and 12, and then inserts the compression ring 10 into the supply ports 13 and 14. compression ring 10,1
A pair of push-out plates 15, 16 for 0 are laterally reciprocatable, and are supplied by the push-out plates 15, 16 to a ring expansion assembly device 6b provided in front of each compression ring magazine 11, 12. The compression rings 10, 10 are assembled into a top ring groove 17 and a second ring groove 18 of the piston 7 to which the oil ring 2 is attached, respectively.

<Problems to be solved by the invention> However, in order to assemble the oil ring 2 and the compression rings 10, 10 into the respective third ring grooves 8 and second ring grooves 17, 18 of the piston 7, each The piston ring feeding and assembling devices 1 and 9 must be installed together and the operations must be performed alternately, which has the drawback of increasing the size of the device, and the assembling process is complicated, reducing the effective rate of process space. In addition, there were other disadvantages in that it took up a lot of space and took a long time to assemble, resulting in high costs.

To deal with this, for example,
Although an automatic piston ring supply and assembly device as shown in the proposed patent has been considered, it is difficult to put it to practical use in assembling piston rings with different oil rings and compression rings using multiple devices. Due to these conditions, the invention of Japanese Patent Publication No. 49-29205, which is the applicant's earlier invention, has been devised. Since they are each installed in different locations on a plane, a large space is required both in terms of linearity and width.As a result, the extrusion plate connected to the actuator becomes long, making the device bulky. There are some inconveniences in installing the
In addition, maintenance and inspection requiring a large amount of operating power is troublesome, and in facilities such as automobile factories where lines are complicated, there is the inconvenience of interference with other lines and equipment.

The purpose of this invention was to solve the technical problem of the piston ring supply and assembly device based on the prior art described above, and to assemble a link expansion assembly by arranging an oil ring magazine and a pair of compression ring magazines in the same direction. The extrusion plate of the oil ring and the extrusion plate of the pair of compression rings are installed vertically with respect to the attachment device, and the extrusion plate of the oil ring and the extrusion plate of the pair of compression rings that extend sideways into the compression ring magazine are stacked, and each piston ring is attached to the ring expansion assembly device at the same time. An excellent piston ring supply and assembly device which benefits the application field of engine technology in the transportation industry by making it possible to eliminate the drawbacks, overcome the difficulties and eliminate the disadvantages of the prior art. We aim to provide the following.

<Means and actions for solving the problem> In accordance with the above-mentioned purpose, the structure of this invention, which is summarized in the scope of the above-mentioned utility model registration claim, is to solve the above-mentioned problem. The device for supplying and assembling piston rings is a magazine installed vertically on the body via a bracket etc., which stacks and stores oil rings, places the oil rings on the table of the body at the supply port, and stores the oil rings separately on the body. The tip of the oil ring extrusion plate, which is connected via a rod or the like to an actuator having a forward and backward stroke that can freely reach the ring expansion and assembling device, is located at the rear end of the forward and backward stroke and faces the oil ring, and A bracket is provided in which a slit is provided in the oil ring extrusion plate over a forward and backward stroke, and a pair of magazines are provided in the body, in which a pair of compression rings are stacked and housed in a manner that they can be freely distributed through the slit. A ring expansion assembly device is constructed by arranging a pair of compression rings supported in a vertical manner so that each supply port is located below the slit and faces the front and back surfaces of a receiving plate provided in a pit of the body. The extrusion plates, which are stacked horizontally and reciprocate via a receiving plate, are connected via rods, etc. to an actuator that has a forward and backward stroke that can freely reach the oil ring and a pair of compression rings. A technical measure has been taken to supply the piston and assemble the piston ring onto the piston.

<Example> Next, an example of this invention will be described below based on the drawings from FIG. 2 onwards. Note that the same parts as in FIGS. 1a and 1b will be described using the same reference numerals.

In the embodiment shown in FIG. 2, reference numeral 19 is a piston ring supply and assembly device which forms the center of the gist of this invention, and a second piston ring is provided on the work surface 20 of the body.
As shown in the figure, the well-known ring expansion and assembly device 6 is the same as the conventional method in which the piston 7 is inserted downward on the left side, and the oil ring 2 and the pair of compression rings 10, 10 are expanded and assembled. ' is provided.

In this way, the oil rings 2, 2... are inserted into an oil ring magazine with a lid 23, which is fixed to a side wall 21 protruding from the body via a holder 22, and is equipped with a spring (not shown) having a predetermined spring constant. 3' is installed with the supply port 4 on the upper surface of the work surface 20, and is further provided with compression rings 10, 10.
Insert the upper and lower holders 24 and 25 into the side wall 21.
A pair of compression ring magazines 1 each having lids 26 and 27 each containing a spring having a set spring constant (not shown) fixed therein.
1', 12' are provided with a predetermined clearance above and below the supply ports 13', 14' (secant ring groove 18 of piston 7).
and the top ring groove 17) and are vertically arranged and facing each other.

Further, the central part of the working surface 20 of the body is restrained by a pair of parallel guides 28 and 29 so as not to be able to move laterally. In order to push out the oil ring placed in the ring and supply it to the ring expansion and assembly device 6', as shown in Figs. The rear end of the hollow oil ring extrusion plate 5', which has a forked branch shape and moves back and forth on the outside of the compression ring magazine 11', is a long hole 30 bored in the working surface 20 of the body. An air cylinder 3 as an actuator is installed in the piston ring supply and assembly device 19 via an L-shaped bar 31 into which it is loosely inserted, and is linked to a compressor (not shown).
The piston rod 33 is connected to the second piston rod 33 so as to reciprocate with respect to the ring expansion assembly device 6'.

Under the hollow oil ring extrusion plate 5', a pair of compression ring magazines 11' and 12' have opposing supply ports 13',
A pair of compression rings 10 from 14',
A pair of compression ring extrusion plates 15' and 16', each having an arc-shaped tip, are connected to the piston ring supply and assembling device via an L-shaped bar 34. 1
The air cylinder 35 is connected to a piston rod 36 of an air cylinder 35 as an actuator, which is installed in the air cylinder 9 and linked to a compressor (not shown), and as shown in FIG. The ring expansion assembly device is layered via a guide 39 that is fixed to the body and is immovably restrained laterally by a pair of upper and lower guides 37 and 38 provided in a pit in the center of the working surface 20 of the body. The oil ring extrusion plate 5' slides relative to the oil ring extrusion plate 5', and at the same time the oil ring extrusion plate 5' slides forward and backward strokes of a predetermined length to reciprocate.

In the above configuration, when the compressor (not shown) attached to the piston ring supply and assembly device 19 operates, the piston rods 33, 36 of the air cylinders 32, 35 linked to the compressor extend together. One oil ring 2 set in an oil ring magazine 3' is arranged at its supply port 4, and a pair of compression rings 10 set in a pair of compression ring magazines 11', 12'. . This is a slit portion of an oil ring extrusion plate 5' which is hollow and is arranged at each tip of a pair of compression ring extrusion plates 15', 16'.
Compression rings 10, 10 are fitted into the inverted arcuate portion 6', and both are restrained by guides 37, 38 so that they cannot move laterally, and transported to the front ring expansion assembly device 6'. will be supplied.

Next, each oil ring 2 and compression ring 1 are supplied to the ring expansion assembly device 6'.
0 and 10 are expanded by the ring expansion and assembly device 6', the piston 7 gripped by a gripping and conveying device (not shown) moves each oil ring 2, compression ring 10, 10, and the oil ring 2 and compression rings 10, 10 are assembled into the third ring groove 8 and second ring grooves 18, 17 of the piston 7 at the same time.

When each oil ring 2 and compression rings 10, 10 are assembled to the piston 7, each oil ring extrusion plate 5' and compression ring extrusion plate 15', 1
6' is reset to the initial state by retraction of each piston rod 33, 36 of each air cylinder 32, 35, and can be repeated thereafter.

It goes without saying that the embodiment of this invention is not limited to the above-mentioned embodiment; for example, it is also possible to use the piston rod of one air cylinder connected to each extrusion plate via a three-pronged bar. Furthermore, various aspects such as providing a hydraulic cylinder in place of the air cylinder can be adopted.

<Effects of the invention> As described above, according to this invention, in the piston ring supply and assembly device, the oil ring magazine and the pair of vertically opposed compression ring magazines are arranged in the same direction with respect to the ring expansion and assembly device. The oil ring extrusion plate and the pair of compression ring extrusion plates are stacked vertically and connected to the actuator, so that the oil ring and the pair of compression ring extrusion plates are stacked vertically and connected to the actuator. An excellent effect is achieved in that the tension ring can be assembled and mounted in each of the third ring groove and the second ring groove of the piston at the same time.

Further, by simplifying the process of assembling the oil ring and the piston of the pair of compression rings, the assembling time can be reduced and the assembling efficiency can be improved.

Furthermore, by incorporating both the oil ring supply and assembly device and the compression ring supply and assembly device into one piston ring supply and assembly device, the process space is reduced and the process space is effectively saved. There are also effects that can be used.

According to this invention, an oil ring magazine and a pair of upper and lower compression ring magazines facing each other are arranged in the same direction with respect to the ring expansion assembly device and are provided in a vertical state. By providing a slit in the extrusion plate so as not to interfere with the supply ports of the compression ring magazines arranged in the same direction, there are essentially three magazines in both the lengthwise arrangement and the planar arrangement. Although the two magazines are arranged, the planar effective area is sufficient for two magazines, and therefore,
The ratio of the entire equipment to the area and space of the facility is significantly smaller than in conventional systems, so there is less interference with other lines and equipment, and the length of the extrusion plate for each magazine is also shorter. This has the advantage that the power cost is lower accordingly, and the effect is that not only the initial cost but also the running cost can be lowered.

Particularly, by placing the oil ring magazine and the compression ring magazine close to each other, the apparatus can be made significantly more compact.

In addition, the extrusion plate of the oil ring is bifurcated at the outside of the compression ring magazine, and the front part is integrated into a hollow shape, so that the extrusion plate of the oil ring is bifurcated. It can move back and forth without interfering with the ring magazine, and since it has good left and right balance, rocking and vibration during operation can be avoided, resulting in an excellent effect of smooth operation.

Furthermore, the compression ring's extrusion plate is installed below the forked hollow part of the oil ring's extrusion plate, so that both extrusion plates can operate without interfering with each other.

[Brief explanation of the drawing]

1a and 1b are partial cross-sectional views of a piston ring supply and assembly device based on the prior art, FIG. Whole perspective view, 3rd
The figure is a cross-sectional view taken from FIG. 2, and FIG. 4 is a plan view of the ring extrusion plate portion. 32... forward/backward actuator, 5'... extrusion plate, 15', 16'... another extrusion plate, 6'... ring expansion assembly device, 19... piston ring supply assembly device, 2... oil Ring, 3'...Oil ring magazine, (5'...Slit), 10...Compression ring, 2
4, 25... Bracket, 11', 12'... Compression ring magazine, 13', 14'...
Supply port, 29...receiving plate.

Claims (1)

[Scope of utility model registration request] One oil ring extrusion plate mounted on the body and connected to the forward/backward stroke is separated from the other two upper and lower extrusion plates arranged in the middle of the forward/backward stroke with a predetermined clearance in three layers. In the piston ring supply and assembly device, each of which is provided so as to be movable toward and away from the ring expansion and assembly device, a slit is inserted in the forward and backward direction of the oil ring extrusion plate, the tip of which faces the supply port of the magazine in which oil rings are stacked. is provided, and a bracket provided on the body makes each of the supply ports of a pair of upper and lower magazines storing stacked compression rings in the slit face apart from the front and back surfaces of a receiving plate provided on the body,
A piston ring supply and assembly apparatus characterized in that the other two extrusion plates are movable forward and backward along a receiving plate provided on the body.