KR101970603B1 - Apparatus for piston moving and apparatus for piston assembling using the same - Google Patents

Abstract

Provided in the present invention is a piston moving apparatus, which is an apparatus for moving a piston to assemble a piston ring, comprising: a bed in which a piston is arranged at an upper part thereof, and which provides a moving route of the piston; and a moving unit pushing one side of a lower part of the piston arranged on the bed such that the piston may move along the bed. During the process in which the piston is moved to assemble the piston ring, the one side of the lower part of the piston is pushed in order to move the piston, such that the surface of the piston is prevented from being damaged when the piston ring is assembled with respect to the piston.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piston moving device and a piston moving device using the piston moving device.

The present invention relates to a piston moving device and a piston assembling device using the piston moving device. More particularly, the present invention relates to a piston moving device that can prevent damage to a piston surface during movement of a piston to be assembled and automate assembly of the piston ring to the piston, To a piston moving device in which damage to the piston surface can be prevented, and a piston assembling device using the piston moving device.

An engine having a reciprocating engine includes an engine block which can be referred to as an engine body, a piston which is assembled on a bore of the engine block and which is vertically and reciprocally reciprocated by an explosion by a mixer, And the like.

The piston is designed to repeatedly perform a high-speed linear reciprocating motion in the engine block by directly receiving the pressure when the mixer is burned. The piston is required to have a high strength and low expansion due to heat, Since the combustion pressure of about 40 kg / cm 2 is generated, it is necessary to make the gap close to zero in order to operate with the pressure.

To this end, a piston ring is generally provided in the piston to fill the clearance between the piston and the bore of the engine block. In order to prevent the mixture pressure from leaking and to prevent oil from entering the combustion chamber through the bore wall, And the air-tightness of the engine block is maintained by the respective operations. In the following description, for ease of explanation, it is assumed that the piston ring includes a compression ring and an oil ring.

Here, in order to improve the productivity of the engine, the piston ring assembly to the piston is generally performed automatically through a predetermined assembly line.

Patent No. 10-1538675 discloses a " piston ring assembly system ". The prior art described above discloses a system for automating the assembly of a piston ring.

In the prior art described above, the piston, which is an item to be assembled, is lifted by using a ring assembling unit of the same type as the clamp and moved to the assembling position, and then the piston ring is assembled to the piston.

At this time, damage such as scratching occurs on the outer circumference of the piston, which is in contact with the surface of the piston, that is, the bore wall surface of the cylinder, during lifting and moving the piston, thereby lowering the commerciality of the piston.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a piston ring which can prevent the piston from being damaged during the piston ring assembly process, And a piston assembly device using the piston moving device.

According to an aspect of the present invention, there is provided an apparatus for moving a piston for assembling a piston ring, the apparatus comprising: a bed disposed at an upper portion of the piston and providing a path for moving the piston; A moving part for pushing a lower side of the piston disposed on the bed so that the piston moves along the bed; And a piston moving device for moving the piston.

The bed may include first and second unit beds that are parallel to each other and spaced apart on both sides of the movement path of the piston.

The moving unit includes a plurality of guide blocks formed with through holes and arranged at regular intervals at a lower portion of the bed, a guide rod disposed in parallel with the bed through the through holes, A piston moving plate which moves up and down through a space between the first and second unit beds by the lifting actuator and one end of which is pushed by a lower one side of the piston, . ≪ / RTI >

The piston moving plate may include a piston moving jaw that protrudes from the upper portion at a predetermined interval and is in contact with a lower side of the piston.

To achieve the above object, the present invention provides an apparatus for assembling a piston ring to a piston while transferring the piston, comprising: a table; A bed disposed above the table and disposed along a movement path of the piston to be assembled; A piston measuring unit disposed at a tip of the bed and measuring whether the piston is defective; A piston ring assembly disposed on one side of the bed and coupling the piston ring to the piston moving along the bed; A marking unit for performing marking on the piston to which the piston ring is coupled; A moving part for pushing a lower side of the piston to move the piston along the bed along the piston measuring part, the piston ring assembly, and the marking part; And a piston assembly.

A piston mounting portion disposed on a front end side of the bed and on which the piston to be assembled is mounted, and a piston supplying portion for supplying the piston on the piston mounting portion to the bed one by one.

Wherein the piston mounting portion includes a plurality of conveying conveyors arranged on an upper surface of the piston and conveying the piston forward, a guide rod arranged to align the pistons arranged on the conveying conveyor in a line, And a plurality of spaced apart spacing means for spacing the pistons conveyed by the conveying conveyor at a predetermined interval.

The space maintaining means includes an operating portion that makes contact with a side surface of a piston advancing in the conveying path by the conveying conveyor, and a control portion that extends from the operating portion in a diagonal direction toward the conveying passage, And a fixing member coupled to a boundary line between the operating portion of the gap holding member and the intermittent portion and rotatably fixing the gap holding member to the guide rail .

The piston ring may include an expanding ring, a side rail, a second ring, and a top ring.

The piston ring assembly may include an expander assembly, a side rail assembly, a second ring assembly, and a top ring assembly for assembling the expander, the side rail, the second ring, and the top ring.

The expander, the side rails, the second ring, and the top ring may be assembled in order from the bottom to the top of the piston.

The moving part abuts against the lower portion of the piston at a position lower than the assembling position of the expander and can push the piston.

The bed may include first and second unit beds that are parallel to each other and spaced apart on both sides of the movement path of the piston.

The moving unit includes a plurality of guide blocks formed with through holes and arranged at regular intervals at a lower portion of the bed, a guide rod disposed parallel to the bed through the through holes, A moving actuator disposed on the guide rod, and a piston moving plate moving up and down through the spacing space between the first and second unit beds by the elevating actuator.

The upper surface of the piston moving plate may be higher than the upper surfaces of the first and second unit beds.

The length of the piston moving plate may correspond to an arrangement interval of the expander assembling portion, the side rail assembling portion, the second ring assembling portion, and the top ring assembling portion.

And a piston discharging unit for discharging the piston determined to be defective by the piston measuring unit to the outside.

Wherein the piston discharging portion includes a rotating table rotatably disposed in the middle of the bed, a discharge plate disposed in a direction perpendicular to the bed, a discharge plate pushing the piston on the rotating table to the discharge plate, And a guide rod disposed on the rotary table and guiding a moving direction of the piston pushed by the back plate.

As described above, in the process of moving the piston for assembling the piston ring, the piston can be moved by pushing the lower side of the piston to prevent damage to the piston surface during the assembly of the piston ring to the piston have.

1 is a perspective view illustrating a configuration of a piston moving apparatus according to an embodiment of the present invention.
2 is a front view showing a configuration of a moving unit used in the piston moving apparatus shown in Fig.
3 is a front view showing another example of the configuration of the moving unit used in the piston moving apparatus according to the embodiment of the present invention.
4 is a view showing a configuration of a piston moving plate used in the moving unit shown in Fig.
5 is a view showing an example of a configuration of a piston assembly apparatus according to an embodiment of the present invention.
6 is a view showing an example of the configuration of a piston mounting portion used in a piston assembling apparatus according to the present invention.
7 is a view showing the configuration of the gap maintaining means used in the piston assembling apparatus according to the present invention.
8 is a view showing a configuration of a bed and a piston measuring unit used in a piston assembling apparatus according to an embodiment of the present invention.
Fig. 9 is a view showing an example of the configuration of the piston discharge portion used in the present invention. Fig.
10 is a view for explaining the operation of the piston discharge portion shown in Fig.
11 is a perspective view showing an example of the configuration of the marking portion used in the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a configuration of a piston moving device according to an embodiment of the present invention.

Referring to FIG. 1, a piston moving apparatus 100 according to an embodiment of the present invention includes a bed 110 and a moving unit 120.

The bed 110 has a rectangular parallelepiped shape having a predetermined width and length, and can be disposed at a predetermined position of the workplace.

The bed 110 provides a path of movement of the piston 1, which is an item to be assembled. Thus, the bed 110 may be disposed on a piston ring assembly line that assembles the piston ring with respect to the piston. Here, a predetermined table may be disposed under the bed 110.

A guide wall for guiding the movement path of the piston 1 may be disposed along the both side ends of the bed 110 to prevent the piston 1 from moving out of the bed 110.

The bed 110 includes first and second unit beds 110A and 110B.

The first and second unit beds 110A and 110B are rectangular parallelepiped bodies having a predetermined width and length, and have the same size and shape.

The first unit bed 110A and the second unit bed 110B are disposed parallel to each other with a predetermined distance therebetween. A moving unit 120, which will be described later, may be disposed below the space between the first unit bed 110A and the second unit bed 110B.

The moving part 120 pushes the lower side of the piston 1 supplied to the bed 110 so that the piston 1 moves along the bed 110.

2 is a front view showing a configuration of a moving unit used in the piston moving apparatus shown in Fig.

2, the moving unit 120 includes a guide block 122, a guide rod 124, a moving actuator 126A, a lifting actuator 126B, and a piston moving plate 128. As shown in FIG.

The guide block 122 has a rectangular parallelepiped shape having a predetermined size, and a plurality of guide blocks 122 are disposed at both sides of the lower portion of the bed 110 at regular intervals to support the bed 110. Here, the guide block 122 may be disposed on a table on which the bed 110 is disposed.

A through hole 123 having a predetermined diameter may be horizontally formed on the guide block 122. A guide rod 124, which will be described later, may be disposed on the through hole 123. Here, when the guide block 122 is disposed, it is preferable that the through holes 123 are arranged so as to be positioned on a straight line.

The through holes 123 may be formed in a single unit on the guide block 122, but a plurality of through holes 123 may be formed at the same height as necessary.

The guide rod 124 may be in the form of a rod having a predetermined length and diameter and may be disposed in parallel with the bed 110 through the through hole 123 of the guide block 122. When the through holes 123 are single, the guide rods 124 are arranged in a single unit. When the plurality of through holes 123 are plural, the guide rods 124 are arranged in a plurality.

The moving actuator 126A is connected to one end of the guide rod 124 so that the guide rod 124 reciprocates along the bed 110 from the bottom of the bed 110. [

The lift actuator 126B allows the piston moving plate 128, which will be described later, to move up and down. At this time, the lift actuator 126B is disposed on the guide rod 124 and can move in parallel with the bed 110 when the guide rod 124 is moved.

The piston moving plate 128 has a rectangular parallelepiped shape having a predetermined length and width, and is disposed on the upper portion of the lift actuator 126B. The piston moving plate 128 is disposed in parallel with the bed 110 at the time of placement.

In the drawing, a part of the piston moving plate 128 is shown as not connected to the lifting actuator 126B, but this is to avoid the complexity of the drawing. All the piston moving plates 128 are connected to the lifting actuator 126B Should be understood.

The piston moving plate 128 can move up and down through the space between the first unit bed 110 and the second unit bed 110 by the operation of the elevating actuator 126B. Therefore, the width of the piston moving plate 128 corresponds to the width of the spacing space between the first unit bed 110 and the second unit bed 110. [

The piston moving plate 128 moves along the bed 110 while moving through the space between the first unit bed 110A and the second unit bed 110B to move the piston 1.

When the piston moving plate 128 is moved, the tip of the piston moving plate 128 pushes the lower one side of the piston 1 to allow the piston 1 to move along the bed 110. At this time, it is preferable that the piston moving plate 128 push the piston lower than the expander assembled at the lowermost side of the piston 1 to move the piston.

One end of the piston moving plate 128 is in contact with the piston 1 at a position lower than the assembling position of the expander.

Here, the length of the piston moving plate 128 can be variously set according to the size of the piston.

Although the piston moving plate 128 is shown as being capable of moving a single piston 1 in a single horizontal movement, the piston moving plate 128 can be moved by the piston moving plate 128 , One or more pistons (1) can be moved.

3 is a front view showing another example of the configuration of the moving unit used in the piston moving apparatus according to the embodiment of the present invention, and FIG. 4 is a view showing a configuration of the piston moving plate used in the moving unit shown in FIG. 3 .

3 and 4, the moving part 120A includes a guide block 122, a guide rod 124, a moving actuator 126A, a lifting actuator 126B, and a piston moving plate 128A.

The detailed description of the same configuration as the previous embodiment will be omitted, and only differences will be described.

The piston moving plate 128A has a rectangular parallelepiped shape having a predetermined length and width, and a plurality of piston moving jaws 129A can be protruded at regular intervals above the piston moving plate 128A. Here, the projecting distance of the moving jaw 129A may be larger than the diameter of the piston 1. [

Thus, in the state in which the piston moving plate 128A is lifted through the space between the first unit bed 110A and the second unit bed 110B, one end of the piston moving jaw 129A is engaged with the lower side surface of the piston 1 After abutment, the piston (1) is pushed to move the piston (1) along the bed (110).

By using the piston moving plate 128A shown in Figs. 3 and 4, it is possible to move the plural or single pistons 1 during the single horizontal movement of the piston moving plate 128. Fig.

3, two elevating actuators 126B are illustrated as being used for elevating and lowering the piston moving plate 128A, but a single elevating actuator 126B may be used according to the needs of the user .

According to the present invention configured as described above, when the piston is moved to assemble the piston ring to the piston, the lower portion of the piston, that is, the lower portion of the operation surface of the piston is moved while being moved, Can be prevented.

The piston assembling apparatus using the piston moving apparatus constructed as above is as follows.

5 is a view showing an example of a configuration of a piston assembly apparatus according to an embodiment of the present invention.

5, a piston assembly apparatus 200 according to an embodiment of the present invention includes a table 201, a bed 210, a moving unit 220, a piston measuring unit 230, a piston ring assembly 250 And a marking unit 260.

In the present invention, the direction in which the piston is fed is at the tip or front, and the direction in which the piston is fed is at the rear or rear.

The detailed description of the same configuration as that of the previously described embodiment will be omitted and only differences will be described.

The table 201 is in the shape of a hexahedron having a predetermined size, and the above-mentioned components are arranged thereon.

The table 201 is disposed at a predetermined position of the workplace and supports the components so that the piston 1, which is an object of assembly, does not deviate from the path due to vibration or the like during operation.

In order to uniformly supply the piston 1 on which the piston ring is assembled to the bed 210 on the table 201, the following piston loading portion may be used.

6 is a view showing an example of the configuration of a piston mounting portion used in a piston assembling apparatus according to the present invention.

The piston mounting part 1100 transfers a plurality of pistons 1 placed on the upper surface from one side (rear side) to the other side (front side), and arranges the plurality of pistons 1 placed on the upper side in a plurality of rows One side (rear side) and the other side (front side) indicating the bearing in the present invention are described with reference to the direction in which the piston is transported. The direction in which the piston is taken out is the other side (front side) The bearing is one side (rear).

At this time, it is preferable that the piston mounting portion 1100 is composed of a driving pulley at one end, a pulley at the other end, and a belt conveyor composed of an endless track driven by an intermediate idler (supporting roller).

A plurality of guide rails 1200 are disposed on the upper portion of the piston mounting portion 1100. The plurality of guide rails 1200 are disposed on the upper side of the piston mounting portion 1100, The pistons 1 are arranged in a plurality of rows.

The guide rails 1200 are provided on the upper part of the piston mounting part 1100 in parallel to each other at regular intervals (distance corresponding to the diameter of the piston) in the left and right longitudinal direction perpendicular to the longitudinal direction, So that the pistons 1 are aligned in a line.

Accordingly, a plurality of the guide rails 1200 are arranged on the upper portion of the piston mounting portion 1100 in parallel to each other at a predetermined interval, so that the plurality of pistons 1 are arranged along the guide rails 1200 in a plurality of rows (Rear) to the other side (front side).

Here, the piston transporting apparatus according to an embodiment of the present invention includes a plurality of spacing means 1300 arranged at regular intervals along the longitudinal direction of the guide rail 1200, So that the spacing of the pistons 1 is maintained.

7 is a view showing the configuration of the gap maintaining means used in the piston assembling apparatus according to the present invention.

Referring to FIG. 7, the gap maintaining means 1300 used in the present invention includes a gap holding member 1310 and a fixing member 1320.

'형상으로, 상기 피스톤 적재부(1100)에 의해 이송통로에서 선진(先進)하는 피스톤(1)의 측면을 접촉하는 조작부(1311)와, 상기 조작부(1311)에서 이송통로를 향하게 사선으로 연장 형성되어, 선진(先進)하는 피스톤(1)의 배후에 위치하는 피스톤(1)의 전면과 접촉하는 단속부(1312)를 형성한다.Preferably, the gap maintaining means 1300 is formed on only one of the pair of guide rails 1200 that provides the transfer passages to the pistons, and the gap maintaining means 1300 is formed on only one of the pair of guide rails 1200, (1310), and a fastening member (1320), the overall shape of which is'

An operating portion 1311 which contacts the side surface of the piston 1 advanced by the piston mounting portion 1100 in the conveying passage in the shape of a cylinder, So as to form an intermittent portion 1312 which comes into contact with the front surface of the piston 1 located behind the advanced piston 1.

' 형태로 피스톤(1)과 접촉하는 끝단을 길이방향에서 직각으로 절곡하여, 상기 끝단이 피스톤(1)의 측면과 접촉되도록 하고, 상기 간격유지부재(1310)의 단속부(1312)는 '

' 형태로 피스톤(1)과 접촉하는 끝단이 상기 조작부(1311)에서 이송통로를 향해 사선으로 연장 형성되어, 선진(先進)하는 피스톤(1)의 배후에 위치하는 피스톤(1)의 전면과 접촉한다.At this time, the operating portion 1311 of the gap holding member 1310 is'

The end of the piston 13 is bent at a right angle in the longitudinal direction so that the end of the piston 13 is in contact with the side surface of the piston 1 and the intermittent portion 1312 of the gap holding member 1310 '

End of the piston 1 in contact with the piston 1 is extended obliquely from the operating portion 1311 toward the transfer passage so as to be in contact with the front surface of the piston 1 located behind the advanced piston 1, do.

A through hole is formed on the boundary line between the operating portion 1311 and the intermittent portion 1312 of the gap maintaining member 1310. The through hole is formed with a fixing member 1320 through which the gap holding member 1310 is inserted, And is rotatably fixed to the rail 1200.

Accordingly, the gap holding member 1310 rotates about the fixing member 1320. The bearing member is mounted on the fixing member 1320, the friction coefficient between the elements is minimized to maintain the free state, 1310 are not in contact with the piston 1, they are rotated and positioned at the corresponding angles.

The roller 1330 includes a roller 1330 that rolls along the outer circumferential surface of the piston 1 at an end of each of the operating portion 1311 and the intermittent portion 1312 of the gap holding member 1310, Even when the operating portion 1311 and the intermittent portion 1312 of the member 1310 contact the surface of the piston 1, defective elements such as scratches are prevented from being generated on the surface of the piston 1.

A rotation preventing protrusion 1201 is formed on the surface of the guide rail 1200 to limit a rotation angle of the gap holding member 1310 that rotates about the fixing member 1320.

6, the intermittent means 1400 interrupts the advancing of the piston 1 forwardly transferred, and the intermittent means 1400 interrupts the forward movement of the piston 1, (Rows) are successively opened to sequentially advance the pistons 1 located in front of a plurality of rows (columns).

In this case, the intermittent means 1400 includes a pair of support legs 1401 vertically disposed on the left and right sides of the piston mounting portion 1100, and the upper ends of the pair of support legs 1401 are horizontally And a plurality of stoppers 1410 selectively lifting and lowering at a position corresponding to a plurality of rows with a predetermined gap therebetween. (1410) are disposed in front of each of a plurality of rows formed by the guide rails (1200), and the piston (1), which is carried by the piston mounting portion (1100) As a result, the pistons 1 located in front of a plurality of rows are sequentially advanced by sequentially opening a plurality of rows.

It is preferable that the stopper 1410 has a plurality of stoppers 1410 that ascend and descend in order so that the piston 1 advances one by one in each row. The collision between the pistons 1 can be prevented.

Here, the piston 1 transferred to the front of the guide rail 1200 may be supplied to the bed 110 by the piston supply part 1500.

The piston supply unit 1500 selectively transfers the piston 1 conveyed through the plurality of guide rails 1200 to the bed 110.

A carrier 1510 which receives the piston 1 transferred through the plurality of guide rails 1200 and a second stopper 1510 which is disposed on one side of the carrier 1510 and controls the movement of the piston 1 to the bed 110, (1520) may be disposed.

Since the bed 210 used in the present invention is constructed in the same manner as the bed 110 used in the previous embodiment, the related reference numerals are used and a detailed description of the bed will be omitted.

The moving unit 220 pushes the lower side of the piston to be the object to be assembled and moves the piston 1 along the bed 210 so that the piston 1 is moved to the piston measuring unit 230, The piston ring assembling unit 250, and the marking unit 260, respectively.

The configuration of the moving unit 220 used in the present embodiment is the same as that of the moving apparatus 100 described above, and thus a detailed description thereof will be omitted.

The movement of the piston by the moving part 220 will be described later.

8 is a view showing a configuration of a bed and a piston measuring unit used in a piston assembling apparatus according to an embodiment of the present invention.

This will be described with reference to FIG.

Here, a piston ring assembly 250, which will be described later, is disposed on one side of the bed 210.

The piston measuring unit 230 is disposed at the tip of the bed 210. The piston measuring unit 230 inspects the assembling direction of the piston 1 to be assembled and whether other items are mixed.

The piston measuring unit 230 may be disposed between the piston ring assembling unit 250 and the marking unit 260 to measure the assembly state of the piston ring.

The piston determined to have a predetermined deficiency as a result of measurement by the piston measuring unit 230 is discharged to the outside of the bed 210 by the piston discharging unit 240, which will be described later, during the movement through the bed 210.

9 is a view showing an example of the configuration of the piston discharge portion 240 used in the present invention.

9, the piston outlet 240 includes a rotary table 242 disposed on the path of movement of the piston through the bed 210, a discharge plate 246 disposed in a direction orthogonal to the bed 210, And a discharge plate 244 for pushing the piston 1 on the rotary table 242 to the discharge plate 246.

The rotary table 242 is disposed on the movement path of the piston and rotatably disposed between the piston measuring unit 230 and the piston ring assembly 250 described later.

A guide plate 243A is disposed on each side of the upper surface of the rotary table 242.

Here, the distance between the guide plates 243A may correspond to the outer distance (oil box) of the piston 1.

10 is a view for explaining the operation of the piston discharge portion shown in Fig. 10, the piston arranged on the rotary table 242 for recognizing the rotation state of the rotary table 242 is not shown, but it is understood that the piston is disposed on the rotary table 242 in operation of the rotary table 242 shall.

First, as shown in Fig. 9, the rotary table 242 maintains the guide plate 243A in a state parallel to the bed 210. As shown in Fig. The above state can be maintained while the piston 1 moving through the bed 210 is measured by the piston measuring unit 230 as a normal piston.

When the piston 1 moving through the bed 210 is judged to be abnormal by the piston measuring unit 230, the predetermined control unit rotates the rotary table 242 in the direction of 90 degrees and the guide plate 243A is discharged Toward the plate 246.

When the rotary table 242 rotates in the direction of the discharge plate 246, the discharge plate 244 is extended by a predetermined actuator and pushes the piston to the discharge plate 246, after which the rotary table 242 is rotated, The guide plate 243A returns to a position parallel to the bed 210. [

The piston ring assembly 250 is disposed on one side of the bed 210.

The piston ring assembly 250 automatically engages the piston ring with the piston 1. Here, the piston ring to be assembled to the piston 1 may include an expanding ring, a side rail, a second ring, and a top ring. Here, since the expanding, the side rail, the second ring, and the top ring are well-known technologies, detailed description thereof will be omitted.

Here, the piston ring assembly 250 includes an expander assembly 251, a side rail assembly 252, a second ring assembly 253, and a third ring assembly 253 for assembling the expander, the side rail, the second ring, And a top ring assembly 254.

The piston ring assembly 250 including the expander assembly 251, the side rail assembly 252, the second ring assembly 253 and the top ring assembly 254 extends from the bottom of the piston 1 to the top The expander, side rail, second ring and top ring can be assembled in order.

The structure of the piston ring assembly 250 is well known in the art, and therefore, a detailed description thereof will be omitted.

The piston moving plate 228 ascends and descends through the space between the first unit bed 110A and the second unit bed 110B. The piston moving plate 228 can move along the bed 110 in a state of rising through the space between the first unit bed 110 and the second unit bed 110.

When the piston moving plate 228 is moved, the tip of the piston moving plate 228 pushes the lower one side of the piston 1 to allow the piston 1 to move along the bed 110. At this time, the piston moving plate 228 pushes a lower position than the expander assembled on the lowermost side of the piston 1, thereby moving the piston. One end of the piston moving plate (228) abuts a position lower than the assembling position of the expander on the side of the piston (1).

Here, the length of the piston moving plate 228 preferably corresponds to the spacing distance between the piston measuring unit 230, the piston ring assembling unit 250, and the marking unit 260.

The distance between the piston measuring part 230 and the piston ring assembling part 250 is divided into a predetermined number and the length between the piston measuring part 230 and the piston ring assembling part 250 A plurality of the piston moving plates 228 corresponding to the number of the piston moving plates 228 can be disposed.

A plurality of piston moving plates 228 may be disposed between the piston ring assembling portion 250 and the marking portion 260 in the same manner as between the piston measuring portion 230 and the piston ring assembling portion 250.

Accordingly, the piston moving plate 228 pushes the piston 1 that has undergone the measurement operation in the piston measuring unit 230 to move to the piston ring assembling unit 250, and the piston ring assembling unit 250, The assembled piston 1 can be moved to the marking portion 260.

The plurality of piston moving plates 228 can interlock with each other.

Further, the plurality of piston moving plates 228 can be operated as follows.

That is, when one piston moving plate 228 moves upward to the top of the bed 210 and then moves to the rear end, the piston moving plate 228, which is disposed at the front end and the rear end of the moving piston moving plate 228, And it is preferable that the piston moving plates 228 do not interfere with each other.

11 is a perspective view showing an example of the configuration of the marking portion used in the present invention.

The marking unit 260 performs predetermined marking on the surface of the piston 1 moving along the bed 210 after the assembly of the piston ring is completed in the piston ring assembly 250.

The marking unit 260 includes a marking plate 262 on which a piston 1 to be marked is placed and a piston 1 disposed on the marking plate 262 so as to be movable up and down on the marking plate 262. [ And a marker 264 for performing a marking operation.

When the piston 1 moving along the bed 110 reaches the marking plate 262, the marker 264 descends toward the piston 1 and performs predetermined marking on the upper surface of the piston 1, . Items to be marked on the piston 1 may include an assembly year, a production number, and the like.

In the course of moving a piston for assembling a piston ring, the piston can be moved by pushing a lower side of the piston to prevent damage to the piston surface in the process of assembling the piston ring to the piston.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: Piston moving device 200: Piston moving device
201: Table 110, 210: Bed
120, 220: moving part 230: piston measuring part
250: piston ring assembling part 260: marking part

Claims (18)

An apparatus for moving a piston for assembly of a piston ring,
A bed comprising the first and second unit beds, the piston being disposed at an upper portion thereof and providing a path of movement of the piston, the first and second unit beds being parallel to each other and spaced apart from both sides of the movement path of the piston;
A moving part for pushing a lower side of the piston disposed on the bed so that the piston moves along the bed;
Lt; / RTI >
The moving unit includes:
A plurality of guide blocks formed at the lower portion of the bed at regular intervals,
A guide rod disposed parallel to the bed through the through hole,
A moving actuator for reciprocating the guide rod,
A lift actuator disposed on the guide rod,
And a piston moving plate which ascends and descends through the spacing spaces of the first and second unit beds by the lifting actuator and one end pushes and moves the lower one side of the piston.
delete delete The method according to claim 1,
Wherein the piston moving plate comprises:
And a piston moving jaw that protrudes from the upper portion at regular intervals and contacts the lower one side of the piston.
An apparatus for assembling a piston ring to a piston while transferring the piston,
table;
A bed disposed on the table and including first and second unit beds disposed along the movement path of the piston to be assembled and disposed parallel to each other and spaced apart from both sides of the movement path of the piston;
A piston measuring unit disposed at a tip of the bed and measuring whether the piston is defective;
A piston ring assembly disposed on one side of the bed and coupling the piston ring to the piston moving along the bed;
A marking unit for marking the assembly year and the production number with respect to the piston to which the piston ring is coupled; And
A moving part for pushing a lower side of the piston to move the piston along the bed along the piston measuring part, the piston ring assembly, and the marking part; Lt; / RTI >
The moving unit includes:
A plurality of guide blocks formed at the lower portion of the bed at regular intervals,
A guide rod disposed parallel to the bed through the through hole,
A moving actuator for reciprocating the guide rod,
A lift actuator disposed on the guide rod,
And a piston moving plate moving up and down through the spacing spaces of the first and second unit beds by the lifting actuator. 6. The method of claim 5,
A piston mounting portion which is disposed on a front end side of the bed and on which the piston to be assembled is loaded,
Further comprising a piston supply portion for supplying the pistons on the piston mounting portion one by one to the bed. The method according to claim 6,
The piston-
A plurality of conveying conveyors arranged on an upper surface of the plurality of pistons and for conveying the pistons forward;
A guide rail for guiding and aligning the pistons arranged on the conveying conveyor in a line,
And a plurality of spaced apart spaced-apart spacers for spacing the pistons transferred by the transfer conveyor from one another along the guide rails. 8. The method of claim 7,
The interval maintaining means
An operating portion which is in contact with a side surface of a piston advanced by the conveying conveyor by the conveying conveyor; and a front surface of the piston located behind the advanced piston extending from the operating portion in a diagonal direction toward the conveying passage, An interval holding member for forming an intermittent portion to be contacted;
And a fixing member coupled to an operating portion of the gap holding member and a boundary line of the intermittent portion and rotatably fixing the gap holding member to the guide rail. 6. The method of claim 5,
Wherein the piston ring includes:
A piston, an expander, a side rail, a second ring, and a top ring. 10. The method of claim 9,
Wherein the piston ring assembly comprises:
A second ring assembly, a second ring assembly, and a top ring assembly for assembling the expander, the side rail, the second ring, and the top ring. 11. The method of claim 10,
Wherein the expander, the side rail, the second ring, and the top ring are assembled in order from the bottom to the top of the piston. 12. The method of claim 11,
Wherein the moving part abuts against the lower portion of the piston on the lower side than the assembling position of the expander and pushes the piston. delete delete 6. The method of claim 5,
Wherein an upper surface of the piston moving plate rises higher than an upper surface of the first and second unit beds. 11. The method of claim 10,
The length of the piston moving plate
A second ring assembly, and a top ring assembly, wherein the expander assembly, the side rail assembly, the second ring assembly, and the top ring assembly are disposed at different intervals. 6. The method of claim 5,
And a piston discharging portion for discharging the piston determined to be defective by the piston measuring portion to the outside. 18. The method of claim 17,
Wherein the piston-
A rotating table rotatably disposed in the middle of the bed,
A discharge plate disposed in a direction orthogonal to the bed,
A discharge plate for pushing the piston on the rotary table to the discharge plate,
And a guide rod disposed on the rotary table and guiding a moving direction of the piston pushed by the back plate.

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