JP3050483U - Automatic tapping machine - Google Patents

Abstract

(57) [Summary] [Purpose] An automatic tapping machine that can continuously perform tapping without interruption even while the small workpiece W is set in the jig 6 and improves workability. provide. A setting section 2 for a small workpiece W is provided at a working height, and a machining section 3 for a small workpiece provided with a tapper 11, 12 provided behind the setting section 2 so as to move in a plane by two-axis driving.
And a turntable 5 whose both ends alternately enter and exit both the setting section 2 and the processing section 3, and turn at least a pair of front and rear jigs 6 for setting a large number of small workpieces arranged vertically and horizontally. It was made detachable to the table 5.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 This invention relates to an automatic tapping machine for setting a screw on a small work under the control of a computer.

[0002]

[Prior art]

 Conventionally, tapping to make a screw on a small workpiece for parts of various products has been performed using a tapper that drives a screw tap to rotate, and in some cases it is operated by holding it with a hand. A tapping machine that can be moved up and down with a handle is used. According to this, the jig is placed on the worktable, and the small work is fixed to it, and the screws are raised one by one while lowering the tapper by operating the handle, which is not efficient.

[0003] Therefore, an automatic tapping machine has been developed which uses a flat jig capable of holding a large number of small workpieces, moves the tapper two-dimensionally under the control of a computer, and taps the tapper at a predetermined position. I have. However, tapping is interrupted while the worker is arranging the small workpieces on the jig or while setting the jig with the small workpieces arranged. It was incomplete.

[0004]

[Problems to be solved by the invention]

 In view of the above-mentioned circumstances, the present invention provides an automatic tapping machine that enables tapping to be performed continuously without interruption even during the setting of small workpieces, thereby improving workability. Aimed at.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a small workpiece setting section provided at a working height at a working height, and a machining section of a small workpiece provided behind the tapper so as to move in a plane by a two-axis drive. And a turntable supporting both ends of the set section and the processing section, both ends of which alternately enter and exit, and at least a pair of front and rear jigs for setting a large number of small workpieces in rows and columns. An automatic tapping machine characterized by being detachable from the machine.

According to the above configuration, a plurality of jigs on the turntable are placed, and if a part of the jig is in the processing part, another part is in the setting part. If small workpieces are set side by side on the jig in the setting section while processing is being performed, or if a jig with small workpieces arranged side by side is set, the turntable will be inverted at the same time as the end of processing. Then, the processed small work and the unprocessed small work are replaced with each other, and while the processing is continued, the small work is taken out and set again.

In addition to the above configuration, in the processing section, a secondary guide rail is erected on a pair of left and right primary guide rails so as to be movable back and forth, and a slide plate is movably mounted on the secondary guide rail. Equipped with a main tapper fixed to it, and a sub-tapper attached to be able to move left and right, and the slide plate is equipped with a screw feed mechanism to drive the sub-tapper left and right. Processing can be applied to predetermined locations.

[0008]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described with reference to the drawings.

The automatic tapping machine is provided with a work W setting section 2 and a processing section 3 on a gantry 1 (FIGS. 1 and 3), and a turntable 5 extending over both of them. The rotary shaft 7 of the turntable 5 and its drive motor 9 are housed in the gantry 1. The processing part 3 is covered with a case for safety, and has a glass window 10 on the front surface. In addition, the set portion 2 projects in a shelf shape at the working height from the lower end of the case. FIG. 1 shows a state in which a pair of right and left jigs 6 are placed on both front and rear halves of the turntable 5, respectively.

In the case of the processing section 3, the main and sub tappers 11, 12 are biaxially movable as a pair on the left and right while changing the mutual distance therebetween. In many cases, the small workpiece W is set with screws on the left and right pairs, so that the work efficiency is more than doubled. First, this mechanism will be described.

A pair of left and right primary guide rails 13 and 13 are arranged in parallel in the processing portion 3, and a secondary guide rail 15 is erected on both primary guide rails 13 and 13 so as to be movable back and forth. A slide board 17 serving as a mounting base for the tappers 11 and 12 is attached to the pair 15 via a pair of guide blocks 20 and 20 so as to be movable left and right.

In order to drive the secondary guide rail 15, male screws 19, 19 are disposed in parallel with the primary guide rails 13, 13, respectively, and the secondary guide rails 15 are fed by the male screws 19, 19. The slide bases 21 and 21 which are engaged with the primary guide rails 13 and are screwed to the male screws 19 and 19 are attached to both ends of the slide rails. Reference numeral 23 denotes a motor that rotates the two external threads 19, 19.

A male screw 25 is also provided on the secondary guide rail 15 in parallel, and a female screw 27 screwed to the slide board 17 is provided. 29 is a motor for rotating the male screw 25. The slide board 17 performs biaxial movement by such a lateral movement P of itself and a forward / backward movement Q of the secondary guide rail 15 (FIG. 4), and the tappers 11, 12 reach predetermined positions. .

Among the tappers 11, 12, the main tapper 11 on the right side as viewed from the front is fixed to the slide board 17 via an attachment member 28, and the sub-tapper 12 on the left side moves in the lateral direction R by feeding screws, Thereby, the mutual distance M is adjusted.

As shown in FIG. 4, a pair of left and right shaft supports 30, 30 are projected from a slide board 17, and the feed mechanism 18 by the screws of the sub tapper 12 is provided. A screw 31 is fixedly mounted on a mounting base of the sub-tapper 12 and is slidably mounted on the slide board 17 and screwed with the male screw 32. Further, a motor 35 is attached to the slide board 17 via an arm 33, and the male screw 32 is rotated by the motor 35.

The turntable 5 is such that both front and rear halves alternately enter and exit the set section 2 and the processing section 3. For fixing during processing, as shown in FIG. The locking device 37 is provided with a flange 39 fixed to the rotating shaft 7, and receiving holes 43, 43 of the bolts 41 are provided at both ends in one diameter direction on the outer periphery of the flange 39. It is attached to the tip of the rod of the fluid cylinder 45 so that it can enter and exit the receiving hole 43.

In operation, the main tapper 11 and the sub-tapper 12 are simultaneously controlled by a computer using software pre-programmed based on the position and number of screws to be set on the work W, the arrangement state of the work W, and the like. Apply processing. 26 is a control panel. Then, during the tapping, the works W are arranged on the jigs 6, 6. Alternatively, the work W is replaced with jigs 6, 6 arranged in advance. Then, when the processing is completed, the turntable 5 is turned over, and in the processing section 3, the jigs 6, 6 newly set are replaced, and the small workpiece W thereon is processed immediately. You.

Each of the tappers 11 and 12 has not only a function of rotating a screw tap at a lower end but also a function of moving up and down. The jig 6 has a flat plate shape, and has a number of projections (using male screws) protruding thereon, and the work W is dropped into at least several projections and fixed (not shown). .

[0019]

[Effect of the invention]

 As described above, according to the automatic tapping machine of the present invention, tapping is continuously performed without interruption even during the setting of small workpieces, so that the work efficiency is improved. effective.

In addition, when the main tapper and the sub tapper are provided (claim 2), a plurality of tappings can be simultaneously performed at a predetermined location, so that the workability is further improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an automatic tapping machine of the present invention in a state in which an upper end surface is broken open.

FIG. 2 is a partially broken front view showing an arrangement of a main tapper and a sub-tapper.

FIG. 3 is an explanatory view schematically showing a partial configuration of the present invention as viewed from a side.

FIG. 4 is a plan view illustrating movement of a main tapper and a sub-tapper.

[Explanation of symbols]

 2 Set part 3 Processing part 5 Turntable 6 Jig 11 Main tapper 12 Secondary tapper 13 Primary guide rail 15 Secondary guide rail 17 Slide plate 18 Screw feed mechanism W Small workpiece

Claims (2)

[Utility model registration claims] 1. A setting section for a small work is provided at a working height, and a processing section for a small work equipped with a tapper to be moved in a plane by a two-axis drive is provided behind the setting section. An automatic tap characterized by supporting a turntable in which both ends alternately enter and exit both sides of the turntable, and at least a pair of front and rear jigs for setting a large number of small workpieces arranged vertically and horizontally on the turntable. Processing machine. 2. In the processing section, a secondary guide rail is erected on a pair of left and right primary guide rails so as to be movable back and forth, and a slide plate is movably mounted on the secondary guide rail, and is fixed to the slide plate. Equipped with a main tapper and a sub-tapper that can be mounted to move left and right.
2. The automatic tapping machine according to claim 1, further comprising a screw feed mechanism.