KR100218947B1 - Inter-process feeding device and method of cylinder block for rotary compressor - Google Patents

Abstract

The present invention relates to an inter-process transfer device for a cylinder block for a rotary compressor and a transfer method thereof. The transfer device includes: first pickup means for picking up and transferring the cylinder block provided in a previous step; A turntable for receiving and rotating the cylinder block from the first pickup means; Rotational position detecting means for detecting a rotational position of the cylinder block rotating on the turntable; Position stopping means for stopping said turntable at a predetermined rotational position based on a detection signal by said rotational position detecting means; And a second pickup means for transferring the cylinder block rotated by the position stopping means to a later process. As a result, the inter-process transfer and position control of the cylinder block can be automatically performed, thereby reducing the number of workers and improving productivity.

Description

Interprocess transfer device of cylinder block for rotary compressor and transfer method

The present invention relates to an inter-process transfer apparatus for a cylinder block for a rotary compressor and a transfer method thereof, and more particularly, after grinding the inner diameter of the cylinder block, and then transferring the cylinder block to a subsequent brushing and washing process. In one aspect, the present invention relates to an inter-process transfer device and a transfer method of a cylinder block for a rotary compressor for improving productivity by automatically performing position control and transfer of the cylinder block.

In general, a rotary compressor has a casing which forms a receiving space, and a transmission part and a compression part which are respectively installed above and below the casing. The transmission part has a stator having a forming iron core and an excitation coil having a laminated structure, and a rotor installed to be rotatable in the stator. The crankshaft is coupled to the rotor along the axial center, and an eccentric end is formed at one side of the crankshaft. The compression unit has a cylinder block formed through the side of the refrigerant suction hole, and a roller that is coupled to the eccentric end of the crankshaft to rotate in contact with the inner diameter surface of the cylinder block and compresses the refrigerant.

As shown in FIG. 1, the cylinder block 51 for the rotary compressor has a cylinder 52 formed therein so that the roller is accommodated and rotatable, and the flange 53 is formed at the outside to be coupled to the outer casing of the rotary compressor. It extends radially. On both sides of the flange 53, protruding jaws 57 are formed in the radial direction. On the opposite side of the flange 53, a narrow flange 55 extending in a section in the radial direction to be coupled to the outer casing is formed. In the flange 53 and the narrow flange 55, a machining assembly reference hole 59, which is a reference point during assembly and processing, is formed through the plate surface.

A refrigerant suction hole 61 is formed at one side of the flange 53 so as to suck the refrigerant into the cylinder 52, and a vane for guiding a roller rotating along the side wall surface of the cylinder 52 is adjacent thereto. The discharge hole 63 through which the compressed refrigerant is discharged is formed. A plurality of bolt fastening holes 60 are formed at upper and lower end surfaces of the cylinder block 51 so that upper and lower bearings for supporting the crank shaft up and down may be coupled to each other.

The cylinder block having such a configuration is roughly manufactured by casting or the like, and is subjected to the primary shape processing of inner diameter and top and bottom cross-section processing and hole processing such as bolt hole by turning and the like. The primary block processed cylinder block is subjected to precision dimension processing such as grinding, and then brushed and washed to remove oil, sludge and chips adhered to the cylinder block during processing and / or transfer. That is, when foreign matter such as chips generated during processing flows into the cylinder in which the roller is in contact rotation, the cylinder and / or the roller are damaged, thereby deteriorating the compression function, and in some cases, the compression function may be lost.

On the other hand, in order to wash the inner diameter and the hole of the cylinder block, the cylinder block needs to be supplied in a constant direction. Grinding process is carried out by two grinding machines installed side by side along the conveying direction of the conveyor, the finished cylinder block from each grinding machine is optionally discharged on the conveyor is transferred to the post-process cleaning process. Therefore, in the frame of the conveyor, a stopper for temporarily stopping the cylinder block discharged from the grinding machine is installed in the transverse direction with respect to the conveying direction of the conveyor. It is rechucked and transported on the bed.

However, in the related art, since the worker has to change the direction of the cylinder block temporarily stopped by the stopper horizontally installed in the conveying direction of the conveyor within the tack time set appropriately for the process line, the operator not only feels the pressure but also decreases the concentration by simple repetition. There is a problem that the work efficiency is reduced.

Therefore, an object of the present invention, the inter-process transfer and position control of the cylinder block can be automatically performed to reduce the number of workers, the inter-process transfer device and transfer method of the cylinder block for rotary compressor can improve the productivity To provide.

1 is a perspective view of a cylinder block for a rotary compressor,

Figure 2 is a perspective view of the interprocess transfer apparatus of the cylinder block for a rotary compressor according to the present invention,

3 is an enlarged view illustrating main parts of the turntable installation area;

Figure 4 is a flow chart for explaining the inter-process transfer method of the cylinder block for a rotary compressor according to an embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

1 frame 2: 1st conveyor

3: support shaft 4: second conveyor

5: reciprocating cylinder 6: pallet

7: reciprocating drive unit 10: first pick-up means

19: first finger 20: turntable

25: light sensor 33: positioning pin

41: second driving cylinder 49: the second finger

51 cylinder block 53 flange

57: protruding jaw 61: refrigerant suction hole

The object is, according to the present invention, in the inter-process transfer apparatus of a cylinder block for a rotary compressor, the first pickup means for picking up and transporting the cylinder block provided in the previous step, and the cylinder block from the first pickup means. A turn table for receiving and rotating, rotation position detecting means for detecting a rotation position of the cylinder block rotating on the turn table, and stopping the turn table at a predetermined rotation position based on a detection signal by the rotation position detecting means. And a second pickup means for transferring the cylinder block rotated by the position stop means to a later process.

Here, the first pick-up means is preferably configured to include a finger portion inserted into the inner diameter portion of the cylinder block, and a drive cylinder mechanism for raising and lowering the finger portion.

Preferably, the rotation position detecting means includes an optical sensor for detecting a predetermined sensing unit formed on the side of the cylinder block, and the position stopping means rotates the turntable based on a signal of the rotation position detecting means. Let's do it.

And, it may be preferable to include a positioning pin which is inserted into the detection hole of the cylinder block stopped by the positioning means.

In addition, the positioning means is configured to further include a drive means for advancing and relocating the positioning pin, the second pickup means is a finger portion inserted into the inner diameter portion of the cylinder block, and a driving cylinder mechanism for lifting the finger portion It is preferable to configure to include.

On the other hand, according to another field of the present invention, in the inter-process transfer method of the cylinder block for rotary compressor, rotating the cylinder block provided from the previous step, detecting the rotation position of the rotating cylinder block, Stopping the cylinder block at a predetermined rotation position according to the detection result of the rotation position, and supplying the stopped cylinder block to a post process during inter-process transfer of the cylinder block for rotary compressor. A method is provided.

The method may further include picking up the cylinder block provided from the previous process and transferring the cylinder block to a predetermined turntable, and the rotating of the cylinder block is preferably performed at the turntable.

The method may further include forming a sensing unit for detecting the rotational position in the cylinder block, and detecting the rotational position of the cylinder block is performed by an optical sensor.

In addition, it may be further preferable to further include inserting a predetermined positioning pin into the sensing hole of the cylinder block is positioned.

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

1 is a perspective view of a cylinder block for a rotary compressor, Figure 2 is a perspective view of the inter-process transfer device of the cylinder block for a rotary compressor, Figure 3 is an enlarged perspective view of the main portion of the turntable installation area. For convenience of description, the cylinder block having the same configuration as the prior art is given the same number as the conventional art. As shown in these figures, a cylinder 52 is formed in the central region of the cylinder block 51 for rotary compressors to accommodate and rotate the rollers, and extends to face each other in the radial direction from the outside of the cylinder 52. The formed flange 53 and the narrow flange 55 are formed. On both sides of the flange 53, a pair of protruding jaws 57 are formed to be radially extended in the radial direction again, and the flange 53 and the narrow flange 55 have a machining assembly reference hole which becomes a reference point during assembly and processing ( 59 are formed through the plate surface, respectively.

On one side of the flange 53, a refrigerant suction hole 61 for sucking refrigerant into the cylinder 52 and a discharge hole 63 for discharging the compressed refrigerant are formed, respectively, on the upper and lower end surfaces of the cylinder block 51, respectively. A plurality of bolt fastening holes 60 are formed so that the upper bearing and the lower bearing supporting the crankshaft up and down can be coupled.

The inter-process transfer device (hereinafter referred to as a transfer device) of the cylinder block for the rotary compressor includes first pick-up means 10 for picking up and transferring the cylinder block 51 provided in the previous step, and first pick-up means 10. A turntable 20 for receiving and rotating the cylinder block 51 from the pair, a pair of optical sensors 25 for detecting the rotational position of the cylinder block 51 rotated on the turntable 20, and the turntable 20 Position stopping means (not shown) for stopping at a predetermined rotation position, second pick-up means 40 for conveying the cylinder block 51 stopped by the position stopping means in a subsequent process, and the frame 1 supporting them. Has The first stopper 8 stops the cylinder block 51 at a predetermined position in the distal region of the first conveyor 2 for conveying the cylinder block 51 discharged from the grinding process of the cylinder block 51, which is a previous step. ) And the second stopper 12 are spaced apart from each other at predetermined intervals and are installed horizontally in the conveying direction of the first conveyor 2. And, on one side of the first conveyor 2, the frame 1 is provided in parallel with the conveying direction of the first conveyor (2).

A pair of rod-shaped support shafts 3 are installed in the central area along the longitudinal direction of the frame 1 along the vertical direction of the frame 1, and the longitudinal direction of the frame 1 is provided on the support shaft 3. Accordingly, a reciprocating drive unit 7 for reciprocating a predetermined length section is provided. A reciprocating cylinder 5 is installed at the upper end of the frame 1 to allow the reciprocating drive 7 to reciprocate along the support shaft 3, and a connecting rod 9 coupled to the reciprocating cylinder 5. Is connected to the reciprocating drive unit 7.

The first pick-up means 10 and the second pick-up means are provided in the left and right areas of the reciprocating drive unit 7 so as to pick up the cylinder block 51.

The first pickup means 10 is installed substantially perpendicular to the bottom surface and is coupled to the first drive cylinder 11 having a connecting rod 13 reciprocatingly and the end of the connecting rod 13, and the cylinder block 51 Has a first finger (19) to pick up and transport. A rectangular first finger support member 15 is coupled to the lower end of the first drive cylinder 11, and the connecting rod 13 of the first drive cylinder 11 penetrates through the plate surface to the first finger support member 15. ) Is installed to flow up and down. The first finger 19 is coupled to the lower end of the connecting rod 13 so as to be coupled to the inner diameter of the cylinder block 51 so as to pick up the cylinder block 51, and the first finger support member 15 to the first finger. A pair of guide rods 17 for guiding the up and down flow of the finger 19 are coupled side by side with the connecting rod 13.

The second pickup means includes a second drive cylinder 41 having a reciprocating connecting rod 43 coupled to a top surface of the reciprocating drive portion 7 substantially perpendicular to the plate surface, and a second coupling means coupled to an end of the connecting rod 43. It has a two-finger feed section 45, and the second finger 49 is coupled to the lower right end of the second finger feed section. A pair of guide rods 47 coupled to the connecting rod 43 to guide the up and down flow of the second finger transfer unit 45 are coupled to the second finger transfer unit 45, and the second finger transfer unit 45 is coupled to the second finger transfer unit 45. In the right region of the second finger supporting member 46 supporting the second finger protrudes substantially perpendicularly from the plate surface of the second finger conveying portion 45.

On the other hand, a disk-shaped turntable 20 is installed on the extension line of the first conveyor 2 so as to rotate the cylinder block 51 transferred from the first finger 19. A turntable support 21 for supporting the turntable 20 to be rotatable is provided below the turntable 20, and the turntable support 21 includes a turntable driving motor (not shown) that provides driving force to the turntable 20. It is installed. In addition, a pair of optical sensors 25 are provided in an adjacent region of the turntable 20 to detect the position of the protruding jaw 57 of the rotating cylinder block 51.

In addition, the turntable driving motor 23 is provided with position stopping means (not shown) for controlling the turntable driving motor so that the turntable 20 is stopped at a predetermined position based on the detection signal of the optical sensor 25. Between the pair of optical sensors 25, the refrigerant suction hole 61 formed on the side of the cylinder block 51 so that the cylinder block 51 stopped at a predetermined rotation position by the position stop means can be controlled in the correct rotation position. ) Is inserted into the control pin (33) for controlling the position of the cylinder block (51). The positioning pin 33 is coupled to the cylinder mechanism 30 so as to be retractable. Cylinder mechanism 30 is composed of a reciprocating connecting rod 32 and a cylinder 31 for receiving it, the positioning pin 33 is coupled to extend in the longitudinal direction to the end of the connecting rod 32 connecting rod ( Retreat according to 32). In addition, a plurality of positioned cylinder blocks 51 may be mounted on the second conveyor belt 4 installed in the right front region of the frame 1 to transfer the positioned cylinder blocks 51 to a subsequent process. The pallet 6 is provided.

By this structure, when the grinding cylinder block 51 is conveyed and approaches the end region, the grinding stop is stopped by the first stopper 8 and the second stopper 12 at a predetermined pickup position. When the cylinder block 51 is stopped by the second stopper 12, the connecting rod 13 of the first driving cylinder 11 is lowered. As the connecting rod 13 descends, the first finger 19 descends and is inserted into the inner diameter of the cylinder block 51, and extends along the radial direction to be in close contact with the inner diameter of the cylinder block 51. When the first finger 19 comes into close contact with the inner diameter of the cylinder block 51, the connecting rod 13 rises to a predetermined height and stops, and the reciprocating drive unit 5 installed in the frame 1 operates to operate the reciprocating drive unit. Numeral 7 moves to the right to stop the cylinder block 51 coupled to the first finger 19 to be located above the turntable 20. Then, the first finger 19 starts to descend, accumulates the cylinder block 51 on the turntable 20, and then moves upward again to a predetermined position to stop, and the reciprocating drive unit 7 of the ball screw shaft 5 The second finger 49 stops so as to be positioned above the turntable 20 by linearly moving to the left in accordance with the rotation.

When the cylinder block 51 is placed on the turntable 20, the turntable driving motor is operated, and the turntable 20 rotates accordingly. The pair of optical sensors 25 installed on one side of the turntable 20 detects the protruding jaws 57 protruding radially from the flange 53 of the cylinder block 51. The position stopping means stops the rotation of the turntable 20 based on the detection signal of the photosensor 25, so that the cylinder block 51 is stopped at the predetermined rotational position. At this time, the positioning pin 33 coupled to the end of the connecting rod 32 of the cylinder mechanism 30 is inserted into the refrigerant suction hole 61 of the cylinder block 51 in conjunction with the movement of the connecting rod 32. .

When the position control of the cylinder block 51 is completed by the insertion and withdrawal of the positioning pin 33, the second finger 49 is interlocked with the linear motion of the connecting rod 43 to lower the inner diameter of the cylinder block 51. It is inserted in and radially expanded to be in close contact with the inner diameter of the cylinder block (51). When the second finger 49 is inserted into and coupled to the cylinder block 51, the second driving cylinder 41 is operated to stop the second finger 49 by rising to a predetermined position, and the reciprocating driving part 7 moves to the right. The second finger 49 is stopped above the pallet 6 located at the beginning of the second conveyor 4. When the reciprocating drive unit 7 stops, the second finger 49 descends to accumulate the cylinder block 51 on the first pallet 6 of the second conveyor 4, and ascends again to stop at a predetermined position.

The pick-up operation of the cylinder block 51 of the first finger 19 and the pick-up operation of the position-controlled cylinder block 51 of the second finger 49 are performed at substantially the same time. The loading operation of the cylinder block 51 on the turntable 20 and the loading operation on the pallet 6 of the position-controlled cylinder block 51 of the second finger 49 are performed at substantially the same time.

Figure 4 is a flow chart for explaining the inter-process transfer method of the cylinder block for a rotary compressor according to an embodiment of the present invention. As shown in this figure, when the processing of the refrigerant suction hole 61 of the cylinder block 51 is completed (S10), it is checked whether the cylinder block 51 is transferred to the turntable 20 (S20). When it is confirmed that the cylinder block 51 is transferred to the turntable 20, the cylinder block 51 is rotated by rotating the turntable 20 (S30). While the cylinder block 51 rotates, the optical sensor 25 provided on one side of the turntable 20 detects whether the projection jaw 57 formed on both sides of the flange 53 of the cylinder block 51 is detected (S40). ).

When the position of the protruding jaw 57 is detected by the optical sensor 25, the position stop means stops the rotation of the turntable 20 so that the cylinder block 51 stops at a predetermined position (S50). Next, when the cylinder block 51 is stopped, the positioning pin 33 is inserted into the sensing hole, that is, the refrigerant suction hole 61 (S60), so that the cylinder block 51 is accurately positioned. Next, it is checked whether the positioning pin 33 is withdrawn to the initial position (S70), and when the withdrawal of the positioning pin 33 is confirmed, the cylinder block 51 is moved by the second finger 49 to the second conveyor ( 4) is transferred to the post-process through (S80).

Thus, the first transfer means for picking up and transporting the cylinder block provided from the previous process, the turntable for receiving and rotating the cylinder block from the first pickup means, the rotation position detecting means for detecting the rotation position of the rotating turntable, By providing position stopping means for stopping the turntable to a predetermined rotation position based on the detection signal of the rotation position detecting means, and second pick-up means for conveying the cylinder block stopped by the position stopping means to a later step, Position control and inter-process transfer can be performed automatically, reducing workforce and productivity.

As described above, according to the present invention, the inter-process transfer and position control of the cylinder block can be automatically performed to reduce the number of workers, and the inter-process transfer device of the cylinder block for rotary compressor to improve the productivity and A conveying method is provided.

Claims (12)

In the inter-process transfer device of the cylinder block for rotary compressor, First pickup means for picking up and transporting the cylinder block provided in the previous step; A turntable for receiving and rotating the cylinder block from the first pickup means; Rotational position detecting means for detecting a rotational position of the cylinder block rotating on the turntable; Position stopping means for stopping said turntable at a predetermined rotational position based on a detection signal by said rotational position detecting means; And a second pickup means for transferring the cylinder block rotationally stopped by the position stopping means to a later process. The method of claim 1, The first pickup means includes a finger portion inserted into the inner diameter portion of the cylinder block, and a drive cylinder mechanism for raising and lowering the finger portion inter-process transfer apparatus of the cylinder block for a rotary compressor. The method of claim 1, The rotation position detecting means is an inter-process transfer apparatus of the cylinder block for a rotary compressor, characterized in that it comprises an optical sensor for detecting a predetermined sensing unit formed on the side of the cylinder block. The method of claim 1, And said position stop means rotates said turntable on the basis of the signal of said rotation position detection means. The method according to claim 1 or 4, And a positioning pin inserted into the sensing hole of the cylinder block stopped by the positioning means. The method of claim 5, The positioning means further comprises a driving means for advancing and repositioning the positioning pins inter-process transfer device of the cylinder block for rotary compressor. The method of claim 1, And the second pickup means includes a finger portion inserted into an inner diameter portion of the cylinder block and a driving cylinder mechanism for lifting and lowering the finger portion. In the inter-process transfer method of the cylinder block for rotary compressor, Rotating the cylinder block provided from the previous process; Detecting a rotational position of the rotating cylinder block; Stopping the cylinder block at a predetermined rotation position according to a detection result of the rotation position; Inter-process transfer method of the cylinder block for a rotary compressor comprising the step of supplying the stopped cylinder block to a post process. The method of claim 8, Picking up the cylinder block provided from the previous process and transferring it to a predetermined turntable; Rotating the cylinder block is carried out in the turntable, the inter-process transfer method of the cylinder block for a rotary compressor. The method of claim 8, And forming a sensing unit in the cylinder block for detecting the rotational position. The method of claim 8, The step of detecting the rotational position of the cylinder block is an inter-process transfer method of the cylinder block for rotary compressor, characterized in that performed by an optical sensor. The method of claim 8, And inserting a predetermined positioning pin into the sensing hole of the stopped cylinder block.

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