KR100284757B1 - Automatic Tapping Device - Google Patents

Abstract

The present invention relates to an apparatus for automatically tapping a female thread on a workpiece such as a switch box and an outlet box,

By distributing the left and right workpieces (A) formed by the molding apparatus and supplying them in rows, the female threads are simultaneously formed on two workpieces, thereby increasing the female thread forming efficiency and improving productivity. Simultaneously discharging the shaped work, but counting can be distributed and supplied by a predetermined number, so that the production quantity of the work can be easily grasped, and in particular, the packaging is easily carried out by distributing and supplying a predetermined number. You can do it.

Description

Automatic Tapping Device Taping Apparatus B23G

The present invention relates to an apparatus for automatically tapping a female thread on a workpiece such as a switch box and an outlet box.

In more detail, when a workpiece formed by a molding apparatus such as a press is supplied, it is distributed and transferred to the rows, and the workpieces of each row are sequentially removed from the transfer means to fix two workpieces, and the fixed workpiece is tapped. The present invention relates to a device that can be repeatedly and automatically carried out to be discharged after tapping by means.

The present invention is to improve the automatic tapping device, which has been elected by the inventor as an invention patent.

Conventionally, drilling machines have been used to form female threads in workpieces such as switch boxes and outlet boxes. In other words, in order to more easily form the female screw on the workpiece formed by a molding apparatus such as a press, a position to first drill a hole in the upper body to give the female thread by drilling or pressing, and then to give the female screw to a separate drilling machine. A hole was drilled first, and a female tap was installed in a separate drilling machine, and a female thread was formed by reprocessing the hole with a tap in a previous step.

However, in this way, the hole for female thread molding first, and the molding of the drilled hole with the female screw again has a problem that the workability is not easy and the efficiency is lowered and the productivity is lowered because the work process is performed twice.

Since all the work was performed by hand, a lot of defective products were generated, and in particular, there was a problem that a safety accident occurred.

In order to solve such a problem, a self-tapping apparatus is known which is filed by the applicant, in particular, the application No. 88-8224 and registered in the patent registration No. 44171, the automatic patting device is operated as follows.

The workpiece to be conveyed by the conveying conveyor is pusher operated by the pusher cylinder into the clamping part, and the workpiece inserted into the clamping part is fixed by the jig operated by the clamping cylinder, and the fixed fixture is held by the tapping machine. After forming the female screw and releasing the clamping state, as a pusher operated by a separate discharge cylinder, the female screw was discharged.

The pre-registered automatic tapping device operated in this way feeds the workpieces in a row, draws them out sequentially and performs tapping, which reduces productivity and uses power inefficiently. If the tapping is not made smoothly in the stand-by state, the phenomenon that the workpiece supplied in the preceding process was accumulated.

In addition, even if the tapping is finished to discharge the workpiece is not automatically transferred to the indiscriminately and disorderly discharge because the worker had to store the number of the discharged work in the box, and thus there was also a problem that it is not easy to sort out the workpiece to be discharged.

The present invention is to provide an improved automatic tapping device to solve the above problems and closing.

The present invention is supplied by the supply unit for supplying the workpiece formed in the preceding process to the distribution transfer unit, the distribution conveying unit for distributing the workpiece supplied from the supply unit to the conveying conveyor installed in parallel spaced apart and conveyed in two rows, and the distribution conveying unit A fixed ejector unit for collecting and fixing a pair of workpieces inward and discharging when the tapping unit has completed tapping, and placing a workpiece discharged from the fixed ejector unit and counting a plurality of workpieces on each anchor rod of the transfer unit. Settlement setting part to be settled,

It is an object of the present invention to provide an automatic tapping device composed of a conveying unit for intermittently operating and conveying when a predetermined number of workpieces are placed on each arbor.

Another object of the present invention is to provide an automatic tapping device that improves work efficiency and thus doubles productivity by distributing and transferring two or more workpieces that are supplied in one row.

Another object of the present invention is to improve the productivity by processing quickly so that the workpiece to be molded and supplied in the preceding process does not accumulate, and the workpiece produced by stacking and arranging a plurality of pieces when discharging the tapping workpiece The present invention provides an automatic tapping device that enables easy checking and also enables faster and easier processing of packaging operations.

The above and other objects of the present invention,

The work piece A being conveyed by the conveying conveyor 22 is stopped by the stopper 45 and is set in the setting part 53 as the setting jig 42 which is operated by the release setting cylinder 41, and the corner fixing is performed. As the corner fixing jig 44 operated by the cylinder 43, the corners of the work piece 4 are held and the dream 15 of the tapping machine 10 forms a female thread on the work piece to discharge the work piece. In that regard,

In the center of the upper surface of the base 20 is provided with a pair of drills (15) and a tapping device portion (2) supported by the support (11),

In the rear of the base 20, the feed slider (3-1) is provided to be inclined upwardly so that the workpiece (A) can be supplied to the falling set plate 23,

The conveying conveyor 22 is provided on both sides of the base 20, but the rear upper part is provided with a split plate 24 which is operated left and right by the falling cylinder 23 by the rotating cylinder 28 and on which the stop support 30 is mounted. And distributing and feeding unit 4 for distributing and supplying the workpiece A to the conveying conveyors 22 on both sides,

A split support rail 47 for dividing the set part 53 horizontally is fixed to the setting part 53 of the upper half of the base 20, and the discharge bar 49 operated by the discharge cylinder 50 is supported by the divided part. A departure setting cylinder 41 having forward and backward along the rail 47 and having a set jig 42 at the corners on both the outer side of the transfer conveyor 22 on both sides of the setting part 53 and the front both sides of the setting part 53. And a fixed discharge device unit 5 having a corner fixing cylinder 43 provided with a corner fixing jig 44,

A pair of discharge sliders 60 are arranged side by side in the front of the setting unit 53 to be inclined downward, and a pair of settles 62 are provided side by side in front of the lower part of the discharge sliders 60, but each settles 62 The inner surface of the drop hole 66 is drilled in the inner end surface of the front end surface and the dropping hole 66 is provided with a locking plate (63), each of which is formed to be folded inwardly so that the front end surface is folded. Each of the mounting plates 63 has a discharge part 6 which can be operated inward and outward by an operation means such as a solenoid 67,

The lower side of the discharge portion (6) is provided with a transverse conveyor 70 intermittently revolved by the drive motor 74 and the transfer conveyor 70 is settled to match the spacing of the settle 62 ( It is achieved by the automatic tapping apparatus 1, characterized in that it comprises a conveying section 7 having fixed 72 at equal intervals.

Since the present invention is as described above,

When the work piece A falls intermittently over the dropping plate 23 through the feed slider 3-1, the rotation cylinder 28 is repeatedly operated left and right, and the work piece A is used as the partition plate 24. To the conveying conveyor 22 on both sides, and when the workpiece (A) to be conveyed by the conveying conveyor 22 is stopped by the stopper 45, the release setting cylinder 41 is operated simultaneously to set the jig ( 42), the workpiece A held by the stopper 45 on the weak side is held in contact with the divided support rail 47, and at the same time, the corner fixing cylinder 43 is operated so that the corner of each work piece A can be removed. Fix it. In this state, the tapping machine 10 of the tapping device part 2 has the chuck 14 downwardly by the ram 13 and at the same time, the drill 15 is rotated by the power of the motor 12 so that the predetermined work of the workpiece A is performed. The female screw is formed on the site and when the molding is completed, the ram 13 operates in reverse and the corner fixing cylinder 43 operates in reverse to return the setting jig 42 and the corner fixing jig 44 to their original state. When the discharge cylinder is operated after the detention state is released, the discharge bar 49 moves forward together with the slide block 48, and the workpiece A is formed by advancing the workpiece A formed with the female thread. Sliding along it is accommodated in the settling portion (6), at the same time to operate the discharge cylinder 50 in reverse to return the discharge bar (49) to its original state.

When the workpiece A is stored in the workpiece A in the settling portion 6, the solenoid 67 operates to move the settle plate 63 to the outside, so that the workpieces A caught on the locking jaws 65 and 64, respectively. Is dropped through the falling hole 66, the falling workpiece (A) is fitted into the mounting rod 72 of the conveying conveyor 70 is placed. When this process is repeated and the predetermined number of workpieces (A) is fitted to the settling rod 72, the driving motor 74 is operated for a predetermined time to revolve the transfer conveyor 70 to the trailing settling rod 72 Will be moved to the lower side of each settle (62).

1 is a perspective view showing the overall structure of the automatic tapping apparatus according to the present invention.

Figure 2a and 2b is an explanatory view showing the structure and operation of the distribution transfer unit in the automatic tapping apparatus according to the present invention.

Figure 3 is a perspective view showing the structure of the fixed discharge device in the automatic tapping apparatus according to the present invention.

Figure 4a and Figure 4b is a perspective view showing the structure of the fixed discharge device in the automatic tapping apparatus according to the present invention.

5 is a perspective view showing an extract settling portion in the automatic tapping apparatus according to the present invention.

6a and 6b are explanatory views showing the operation relationship of the base plate in the settling portion of the automatic tapping apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

1: Automatic Tapping Device 2: Tapping Device

3: supply part 4: distribution transfer part

5: fixed discharge device portion 6: settling portion

7 transfer part 10 tapping part

11 support 12 motor

13: Tam 14: Chuck

15: drill 20: frame

21: conveying conveyor support frame 22: conveying conveyor

23: fall set plate 24: partition plate

25: operation block 26: stop support

27: working arm 28: rotating cylinder

29: guide rod 30: escape prevention

31, 32: proximity sensor 40: support plate

41: release setting cylinder 42: setting jig

43: corner fixing cylinder 44: corner fixing jig

45: stopper 46: detention support

47: divided support rail 48: slide block

49: pusher 50: discharge cylinder

51: rod 52: support

60: discharge slider 61: guide

62: settle 63: settle plate

64, 65: engaging jaw 66: dropping ball

67 solenoid 68 support

70: conveying conveyor 71: guide support frame

72: Chichibong 73: support

74: drive motor

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

1 to 6B are exemplary views showing the automatic tapping apparatus 1 according to the present invention in detail, and FIG. 1 is an astronomical perspective view of the automatic tapping apparatus 1,

2A and 2B are enlarged views and operation relationship explanatory diagrams taken from the dispensing transfer unit 4, and FIGS. 3 to 4B are enlarged perspective views and operation relationship explanatory views taken from the fixing unit 5, FIG. 5 to 6B are enlarged perspective and explanatory diagrams illustrating the operation of the main parts of the discharge part 6.

The automatic tapping apparatus 1 according to the present invention has a structure as shown in FIG. 1 as a whole.

In the center of the upper surface of the rectangular parallelepiped type | mold 20, the normal tapping apparatus part 2 was attached and fixed by the support stand 11. As shown in FIG. The tapping machine 10 causes the shaft to rotate by the operation of the motor 12 and the rotational force simultaneously rotates the two pairs of drills 15 by a device (not specifically shown) provided inside the chuck 14. And the ram 13 is to operate the chuck 14, the drill 15 is mounted up and down.

The supply part 3 for supplying the workpiece A to the upper rear side of the base 20 was provided.

The supply part 3 is provided with the inclined feed slider 3-1, and the workpiece | work A shape | molded in the preceding process connected with the preceding process (molding process) was carried out by arbitrary apparatuses, and the feed slider 3-1 was provided. To be supplied.

On the lower side of the feed slider 3-1, that is, on the upper surface of the base 20, a drop set plate 23 was provided.

On the rear side of the drop settling plate 23, the workpiece A dropped on the drop settling plate 23 is transferred to the conveying conveyor 22 provided on both sides of the base 20 by the dispensing conveying unit 4 described later. When dispensing was provided with a separation prevention 30 so as to prevent being pushed to the rear side was formed long to the conveying conveyor 22 on both sides.

The dispensing conveying unit 4 is a dispensing apparatus for distributing the work A dropped on the dropping plate 23 alternately from side to side and a conveying conveyor 22 for conveying the distributed workpiece to the fixed discharging unit unit 5 side. ) Was mounted.

The conveying conveyor 22 was mounted on the upper side of both sides of the base 20 to be protected by the conveying conveyor support frame 21. The first half was formed long enough in front of the base 20, and the conveying support frame 21 ), The outer side was made high so that the work A did not fall outward when the work A was transferred.

The distribution device was installed on the rear side of the support 11. The rotary cylinder 28 is fixed directly below the upper surface of the base 20, so that the rotating shaft is exposed to the upper surface and the operating arm 27 is fixed to the rotating shaft, and the stop support 26 and the end of the operating arm 27 Mandrel the support 26-1 with the shaft 26-2, and install the long beam 27-1 at the tip of the operating arm 27, and apply the shaft 26-2 to the drm long hole 27-1. The length of the stop support 26 is sufficient to stop the workpiece A falling from the feed slider 3-1 when the stop support 26 is deflected to one side. Maintaining the length of the degree, the central portion of the front of the stop support 26 was integrally mounted with a divider plate 24 to be distributed to the conveying conveyor 22 on both sides of the workpiece (A) dropped. In addition, the guide hole (25-1) in the upper center of the stop support (26) in order to be able to horizontally move when the partition plate 24 and the stop support (26) moves left and right by the operation of the rotary cylinder (28). The perforated operation block 25 is fixed and a guide rod 29 is inserted into the guide hole 25-1, and the guide rod 29 is sufficiently long to the outside of the conveying conveyor 22 and by any means. Both sides were fixed to the outside of the conveying conveyor support frame 21. In addition, both sides of the operating arm 27 is provided with a proximity sensor 31, 32 for sensing the operating position of the operating arm 27 to set the rotation direction of the rotary cylinder (28).

The fixed discharge device part 5 was provided in the front half of the conveyance conveyor 22 and the vertical lower side of the chuck 14. On the rear side of the setting plate 53, the detention support 46 in which the settling groove 46-1 is recessed is fixed, and the split support rail 47 is fixed in the longitudinal direction at the front center thereof, and the split support rail 47 is provided. The slide block 48 is inserted so as to be slidable, but the pusher 49 is fixed to both lower ends of the slide block 48, and the discharge cylinder 50 is transferred to the conveying conveyor support frame 21 at the slide block 48. And fixed to the support 52 which is fixed to the support plate 40 which will be described later,

Both sides of the setting plate 53 was fixed to the support plate 40 so as not to interfere with the operation of the transfer conveyor 22. The upper part of the conveying conveyor 22 is provided with a stopper 45 to stop the workpiece A being conveyed by the conveying conveyor 22, and the front side of the stopper 45 is divided with the detention support 46. The corner fixing cylinder 43 provided with the corner fixing jig 44 is inclined so as to face the middle corner portion, which is the coupling portion of the support rail 47, and the stopper 45 is provided at both rear sides of the stopper 45. A detachment setting cylinder 41 equipped with a setting jig 42 was mounted to set the stationary work A to the setting plate 53.

The lower front of the discharge slider 60 is provided with a settling portion 6, as shown in Figure 5 and 6a, b.

Although not shown in detail, it is provided with an upper and lower settle 62 having the same width as the discharge slider 60, but is fixed by any device and spaced between the upper settle 62 and the lower settle 62 (62) The mounting plate 63 was provided.

The mounting plate 63 forms a locking jaw 64 at the tip and a dropping hole 66 therein, and forms a locking jaw 65 at the rear inner peripheral surface of the inner circumferential surface of the falling hole 66, FIG. 6A. And as shown in 6b overlapping the locking jaw 64 of the front end to each other to be located to the inner side of the drop hole 66 of the other mounting plate 63, the locking jaw 64 of one of the mounting plate 63 ) And the locking jaw 65 of the other settle plate 63 to be opposed to each other. In particular, the support piece 68 is fixed to the outer end of each set plate 63 and fixed to the rod 67-1 of the solenoid 67 fixed to both sides of the settle 62.

A cylinder device may be provided in place of the solenoya 67.

In the lower side of the settling portion 67, the transfer portion 7 is provided laterally.

The transfer conveyor 70 is provided inside the guide support frame 71, and the guide support frame 71 is held at a sufficient height by the support base 73 so as to be secured to the transport conveyor 70 at equal intervals. 72) to be easily moved, the interlocking pulley 76 is fixed to one side shaft of the conveying conveyor 70, the interlocking pulley 76 as the belt 77 starting pulley 75 of the drive motor 74 Connected with

The operation relationship will be described below.

The preceding step, namely, the work A formed by the molding apparatus is slid along the feed slider 3-1 to be placed on the dropping set plate 23, at which time the drop settling plate 23 of the distribution transfer section 4 is placed. 2b is in a state of being deflected to one side as shown in FIG. 2b and the deflected actuating arm 27 is in a state of being sensed on one side of the proximity sensors 31 and 32.

As shown in FIG. 2B, when the actuating arm 27 is in the state of being sensed by the proximity sensor 32, the partition plate 24 is on the right side of the drop setter plate 24, and in this state, the feed slider 3 The work A supplied through -1) falls on the fall-seating plate 24, and the stop support 26 blocks the work A from moving forward.

When the workpiece A is placed in the fall-seating plate 24, the rotary cylinder 28 is operated to move the partition plate 24 along with the operation arm 27 to the left.

That is, when the operating arm 27 is moved to the left side, the support base 26-1, the operation block 25, the stop support 26, and the partition plate 24 are also moved at the same time. The plate 24 also moves horizontally. When the splitter plate 24 moves to the left side, the work A placed on the drop setter plate 23 moves to the conveying conveyor 22 side on the left side, at which time the departure preventing unit 30 and the stop support 26 are moved. ) Is controlled to prevent the moving workpiece (A) from being separated.

The workpiece A, which was on the transfer conveyor 22 on the right side when the operating arm 27 and the divider 24 are on the right side, is detained by the stop support 26 on the right side even though the transfer conveyor 22 is in operation. In this state, when the operating arm 27 and the partition plate 24 move to the left and right, the stop support 26 also moves to the left to release the detention state, so that the workpiece distributed to the conveying conveyor 22 on the right side ( A) moves to the fixed discharge device unit 5 side by the transfer conveyor 22 on the right side to be stopped by the stopper 45 on the right side.

On the other hand, the workpiece (A) moved to the conveying conveyor 22 side of the left, even if the conveying conveyor 22 of the left side is continuously held by the stop support 26, it can not be moved forward. In this state, when the new work piece A is dropped onto the dropping plate 23 through the feed slider 3-1, the rotary cylinder 28 is activated to operate the operating arm 27 and the stop support 26. With the partition plate 24 moving to the right side, the workpiece A dropped on the right side is moved to the conveying conveyor side 22 to be detained.

At this time, since the workpiece A held by the stop support 26 on the left side is released from the detained state, when it is transferred to the stationary discharge device unit 5 side along the transfer conveyor 22 on the left side, the release setting cylinder 41 Will work.

The left and right release setting cylinders 41 on both sides may operate simultaneously or the work piece A may operate sequentially in the order of arrival to the stopper 45. When the release setting cylinder 41 is operated, as shown in FIG. 4A, the workpiece A, which is on the transfer conveyor 22, is collected above the setting plate 53, and at the same time, the corner fixing cylinder 43 is also provided. To detain the outer edge of the work piece A as the corner fixing jig 44. In this way, the tapping device part 2 forms the female screw in the state in which the workpiece A is detained. In the tapping machine 10, the power of the motor 12 is transmitted to the drill 15 through the chuck 14 and drilled. Since the rotation of the 15 and the ram 13 are operated to lower the drill 15 which is rotated together with the chuck 14, the drill 15 to be rotated is predetermined in the detained workpiece A. Drill the points to form the female thread. After the molding of the female thread is completed, the drill 15 is lifted up together with the chuck 14 by the reverse action of the ram 13, and at the same time, the release setting cylinder 41 and the corner fixing cylinder 43 operate in reverse to set the jig. The 42 and the corner fixing jig 44 are released to release the detention state, and then the discharge cylinder 50 operates as shown in FIG. 4B to accommodate the rod 51 so that the slide block 48 is divided into the support rails. Moving along the (47) and thus the push rod 49 is also moved to advance the workpiece (A) in the setting plate 53 to transfer the discharge slider (60). The workpiece A, which flows into the discharge slider 60 and slides down, is received into the inner housing 62 of the discharge unit 6, and the workpiece A stored in the housing 62 is shown in FIG. 6A. As shown in the drawing, both sides are caught by the locking jaws 64 and 65, respectively, and fall from each other. When the workpiece A is caught by the locking jaws 64 and 65, the sensor (not shown) is shown. This is sensed to perform counting and at the same time instruct the solenoid 67 to operate.

When the solenoid 67 is operated, the gap between the locking jaws 65 and 64 increases, thereby releasing the locking state and at the same time widening the drop hole 66 so that the work piece A falls through the drop hole 66. Then, the falling workpiece (A) is fitted to each of the two settle rods 72 fixed to the conveying conveyor 70 of the conveying unit 7 at the same time.

When the above-described process is repeated and the workpiece A is inserted into the settle rod 72, for example, a predetermined number of pieces of the workpiece A are inserted into the settle rod 72, the driving motor 74 is applied for a predetermined time. Only by moving the conveying conveyor (70) to allow the workpiece (A) to be fitted to a later settle rod (72).

As described above, according to the present invention,

By distributing the left and right workpieces (A) formed by the molding apparatus and supplying them with heat, the female screws are simultaneously formed on two workpieces, thereby increasing the female thread forming efficiency and improving productivity. Simultaneously discharging the workpieces and counting them so that they can be dispensed and supplied by a predetermined number, so that the production quantity of the workpiece can be easily identified, and in particular, a predetermined number can be distributed and supplied so that the packaging can be carried out more easily. It is.

Claims (1)

The work piece A being conveyed by the conveying conveyor 22 is stopped by the stopper 45 and is set in the setting part 53 as the setting jig 42 which is operated by the release setting cylinder 41, and the corner fixing is performed. As the corner fixing jig 44 operated by the cylinder 43, the corners of the work piece 4 are held and the dream 15 of the tapping machine 10 forms a female thread on the work piece to discharge the work piece. In that regard, In the center of the upper surface of the base 20 is provided with a pair of drills (15) and a tapping device portion (2) supported by the support (11), In the rear of the base 20, the feed slider (3-1) is provided to be inclined upwardly so that the workpiece (A) can be supplied to the falling set plate 23, The conveying conveyor 22 is provided on both sides of the base 20, but the rear upper part is provided with a split plate 24 which is operated left and right by the falling cylinder 23 by the rotating cylinder 28 and on which the stop support 30 is mounted. And distributing and feeding unit 4 for distributing and supplying the workpiece A to the conveying conveyors 22 on both sides, A split support rail 47 for dividing the set part 53 horizontally is fixed to the setting part 53 of the upper half of the base 20, and the discharge bar 49 operated by the discharge cylinder 50 is supported by the divided part. A departure setting cylinder 41 having forward and backward along the rail 47 and having a set jig 42 at the corners on both the outer side of the transfer conveyor 22 on both sides of the setting part 53 and the front both sides of the setting part 53. And a fixed discharge device unit 5 having a corner fixing cylinder 43 provided with a corner fixing jig 44, A pair of discharge sliders 60 are provided side by side in the front of the setting unit 53 so as to be inclined downward, and a pair of settles 62 are provided side by side in front of the bottom of the discharge slider 60, but each settles 62. The inner surface of the drop hole 66 is drilled in the inner end surface of the front end surface and the dropping hole 66 is provided with a locking plate (63), each of which is formed to be folded inwardly so that the front end surface is folded. Each of the mounting plates 63 has a discharge part 6 which can be operated inward and outward by an operation means such as a solenoid 67, The lower side of the discharge portion (6) is provided with a transverse conveyor 70 intermittently revolved by the drive motor 74 and the transfer conveyor 70 is settled to match the spacing of the settle 62 ( Automatic tapping device, characterized in that it comprises a conveying portion (7) fixed 72 at equal intervals.