JP5312772B2 - Drift pin driving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drift pin driving apparatus capable of driving drift pins even into horizontal members different in dimensions, the kinds of hardware, etc. and attaining operation for that with accuracy. <P>SOLUTION: The drift pin driving apparatus has a take-in conveyor 2 arranged upstream, and a take-out conveyor 3 installed downstream. The drift pin driving apparatus 1 includes a work material conveying-holding means 100, a longitudinal pinhole positioning means 200, a drift pin preparing-selecting means 300, a drift pin insertion part lifting positioning means 400 and a drift pin charging means 500. A charging part 505 is formed as a V-groove. The pinhole center coincides with the center of a cut line, and a driving side side-face is pressed to a ruler. In this state, the horizontal member W is held and fixed to make constant a longitudinal position and a distance to the driving start position when driving the pins. The drift pin driving apparatus is also provided with a plurality of pin hoppers. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to an apparatus for driving in advance a drift pin to be attached for positioning or the like at the time of assembly by a hardware method on wood that has been precut as a hardware structural member for a hardware method. .

  In recent years, as shown in FIG. 15, a method of using metal for the joint structure portion of a wooden house (i.e., an all-metal method) has been adopted (for example, Patent Document 1).

  Here, when the drift pin is driven into the hardware mounting hole as shown in FIG. 15 (B), it must be relied on on-site work, but as shown in FIG. 15 (C), the drift pin is used as a hardware slit. In the case of fitting, it is driven in advance into the joining slit portion of the horizontal member, and positioning and fall prevention are performed at the construction site.

  In view of this, there has been proposed an apparatus capable of automatically driving a drift pin into a hole for passing a drift pin that crosses the slit after a kerf processing by pre-cut processing (Patent Documents 2 and 3).

  Patent Document 2 discloses, based on input processing information, a slit S for passing the connection fitting 3 through the mouth of the horizontal member 2 and a hole H for passing the driving pin 5 crossing the slit S. The cutting end processing means to be processed, the horizontal member conveying means 6 for transferring the horizontal member 2 processed by the cutting edge processing means, and the horizontal member 2 conveyed by the horizontal member conveying means 6 are held at predetermined positions. Holding means 7 that is positioned on the side of the horizontal member 2 held by the holding means 7, driving pin means 8 that drives the driving pin 5 into the hole H, and the driving pin means 8 in the horizontal direction. And a vertical direction orthogonal to the horizontal direction, a moving means 9 that moves in the horizontal direction so as to be orthogonal to the vertical direction and move forward and backward with respect to the horizontal member 2, and the moving means 9 based on the processing information Providing a kerf processing device 1 having movement control means 10 for movement Are (see Figure 16).

  The piercing device 1 proposed in Patent Document 2 stores the drift pin 5 fed in the Z direction from the hopper 200 in which the pins are randomly stored, with the driving pin conveying means 8 holding the tabs 31 and 31 with the claws 31 and 31. It is configured to supply to the section 81. The storage portion 81 can store a plurality of pins 5 stacked in the vertical direction, and is configured to drive the one pushed up to the uppermost portion into the horizontal member 2. The horizontal member 2 is brought into contact with a vertically movable stopper member 71 and is held and positioned by the side vise 72, 72 and the upper surface pressing member 73.

  Patent Document 3 proposes a drift pin insertion device that moves relatively based on position data for drilling a workpiece and automatically inserts a drift pin into a hole formed in the workpiece. (See FIGS. 17 and 18).

The drift pin insertion device proposed in Patent Document 3 includes upper clamps 15a and 15b and lateral clamps 16a and 16b in the transport paths 13 and 14, and the movable portions 16c and 16d of the lateral clamps 16a and 16b are stoppers S1 and S2. It is operated so that it also functions. The drift pins 9 are sent from the drift pin hopper 25 installed on the side of the base 12 to the slope-shaped cartridge 26, and are supplied one by one to the guide groove 27 by the shutter 32 and the presser 33. The drift pin 9 in the guide groove 27 is pushed out along the groove by the pushing mechanism 35, loaded into the drift pin loading device 28, and held by the leaf spring 24a or the magnet 24m. When the loading is completed in this way, the drift pin holding portion 23 is automatically moved and moved by the moving base 22 based on the processing position data of the insertion hole 8 of the workpiece W, and the drift pin insertion mechanism 24 moves the drift pin. 9 is inserted into the drift pin hole 8 of the fixed horizontal member W.
Japanese Patent Laid-Open No. 2000-213062 (FIGS. 1, 4 and 8) JP 2003-236803 A (FIGS. 1-3, 5, 7, 10) Japanese Patent Laying-Open No. 2006-90084 (FIGS. 2 to 10)

  According to these Patent Documents 2 and 3, since a drift pin that can be driven in a pre-cut factory can be driven in advance to a horizontal member, the drift pin is driven so as to be able to be positioned and prevented from falling at a construction site. It can be shipped from the pre-cut factory.

  In the proposal of Patent Document 2, since the horizontal member is fixed by centripetal clamping, the driving start distance of the drift pin varies depending on the width of the horizontal member. For this reason, there is a problem that a mechanism for changing the stroke of the driving machine (the driving start distance / the driving end distance) according to the material width is required for the horizontal members having different width dimensions. Conversely, if such a mechanism is not provided, the drift pin can only be driven into a horizontal member having a specific width.

  Since the proposal of patent document 3 fixes a horizontal member by a single-sided pressing type, the fluctuation | variation of the driving start distance by the above width dimensions can be avoided. However, since the position of the stopper is fixed, the end position of the horizontal member is constant. Since the drift pin insertion device side is moved in the longitudinal direction and the vertical direction with respect to the horizontal member fixed with the end portion being fixed, the upper retainer for fixing the horizontal member is moved. The degree of freedom in the relationship between the position of the clamp or ruler and the longitudinal position of the pin insertion hole is limited. For this reason, the proposal of patent document 3 can also drive only the drift pin corresponding to a specific hardware with respect to the horizontal member of a specific dimension.

  Therefore, the present invention pays attention to the problems of the prior art and can drive the drift pin to horizontal members having different dimensions and types of hardware to be attached, and realize the operation for that purpose with high accuracy. It was made for the purpose.

The drift pin driving device of the present invention made to achieve the above object is a precut material that has been subjected to slit processing for inserting a plate portion of a connection hardware by precut processing and hole processing for fixing the connection hardware. On the other hand, it is a device for driving a drift pin, and has the following configuration.
(1) A transport device that transports the precut material in the longitudinal direction, a stopper that appears and stops in the transport path of the transport device and stops the tip of the precut material, and a precut material that is stopped by the stopper are fixed. A fixing device for driving, a driving device for driving a drift pin into a pin hole formed in a precut material fixed by the fixing device, and a pin supply device for supplying the drift pin to the driving device. about.
(2) The fixing device includes left and right rulers fixed to one side surface of the transport device, and left and right side surface clampers that protrude toward and away from the ruler, and a gap is formed between the left and right rulers. Being.
(3) The stopper is provided with a moving mechanism that can appear and disappear on the left and right sides of the cut and that can change the stopper position in the longitudinal direction of the transport device.
(4) As the pin supply device, a pin hopper, a shutter mechanism that opens the bottom opening of the pin hopper and takes out the drift pins one by one, and a stop that rolls down the drift pin taken out by the shutter mechanism and stops at the lower end A slope provided with a portion, a pin push-out mechanism that moves back and forth along the stay inside the stay portion from the rear of the slope, and a drift pin pushed forward by the pin push-out mechanism to receive the lower end into the V groove And a V-shaped slope that rolls down and is arranged on the ruler side of the conveying device.
(5) A pin insertion rod that moves back and forth in the V groove along the V groove from the rear side of the V-shaped slope as the driving machine is disposed on the ruler side of the transport device.
(6) An elevating mechanism for moving the pin insertion rod and the V-shaped slope up and down at a position facing the ruler cut is provided.

  According to the drift pin driving device of the present invention, the pre-cut material that has been subjected to slit processing and hole processing by pre-cut processing, the stopper position of the stopper is determined so that the pin hole is positioned at the ruler cut line on the transport device. And make it protrude. Thereby, the pre-cut material is stopped so that the pin hole faces the cut. In this state, the side clamper is driven to fix the precut material against the ruler. Thereby, the side surface of the pre-cut material is fixed at a certain distance with respect to the driving machine. On the other hand, the shutter mechanism is driven to take out one drift pin from the pin hopper and roll it down along the slope to the stop. And a pin pushing mechanism is advanced, a drift pin is pushed out from a stay part, and it passes to a V-shaped slope. Thereby, it stops in a state where the drift pin is supported in the V groove at the lower end of the V-shaped slope. Since it is a V groove, even if the diameter of the drift pin changes, its center coincides with the center of the V groove. Therefore, the drift pin driving device of the present invention can be prepared so that the center is at a fixed position even if the drift pins have different diameters.

  When the precut material is thus positioned and the drift pin is prepared, the lifting mechanism is operated to move the V-groove to the height of the pin hole of the precut material. At this time, the pin insertion rod is also moved by the lifting mechanism. The drift pin can be driven into the pin hole of the precut material by advancing the pin insertion rod at the height position of the pin hole. At this time, since the precut material is fixed so that the side surface is pressed against the ruler, the driving start position is constant. Accordingly, the stroke of the pin insertion rod can be easily set, and even drift pins having different lengths can be reliably driven.

  Here, the lift distance by the lift mechanism may be controlled in consideration of the diameter of the drift pin obtained from the machining data.

  In addition, it is preferable to arrange the device so that the center of the V groove and the center of the cut coincide with each other, and control the stop position of the precut material by the stopper so that the center line of the pin hole coincides with the center line of the cut. .

Here, the drift pin driving apparatus of the present invention may further include the following configuration in order to automatically execute such an operation.
(7) Provided with a position control device that controls the stopper position of the stopper in the longitudinal direction of the conveying device and the lifting position of the lifting mechanism based on processing data for precutting the precut material.

Moreover, the drift pin driving device of the present invention may further include the following configuration.
(8) A plurality of pin hoppers as the pin hoppers are arranged side by side so as to be distributed left and right with the V groove as a center.
(9) A right-sloping left slope that accepts a drift pin taken out from a pin hopper on the left side of the V-groove and a left-down side that catches a drift pin taken out from a pin hopper on the right side of the V-groove as the slope With the right slope.
(10) The pin pushing mechanism is provided with a bifurcated rod that moves back and forth simultaneously with respect to both the bottom end retaining portion of the left slope and the bottom bottom retaining portion of the right slope.
(11) The shutter mechanism includes a selection drive device that selects and drives one of the shutters installed for each of the plurality of pin hoppers.

  By adopting such a configuration, drift pins of different types (diameter, length, shape, etc.) are prepared for each of the plurality of pin hoppers, the width of the precut material, the type of hardware to be mounted, the diameter of the hole, etc. You can select the one that corresponds to and type it in. Such actions and effects are that the drift pin driving device of the present invention adopts the configuration of (1) to (6), and the impact position of the precut material can be changed, and the position where the pin is driven into the precut material is determined. This is achieved because there is a certain distance, and the position where the pin is driven is the ruler cut position.

  As described above, the effect of providing a plurality of pin hoppers is that the different types of drift pins can be driven in, but the same type of drift pins may be accommodated in the plurality of pin hoppers. In this case, there is an effect that it is not necessary to provide a large pin hopper in order to increase the pin accommodation amount.

And the drift pin driving device of the present invention provided with a plurality of pin hoppers is good to further have the following composition.
(12) The forked rod of the pin pushing mechanism is moved back and forth together with the back and forth movement of the pin insertion rod.

  By adopting such a configuration, it is not necessary to separately provide a drive cylinder or the like for controlling the operation of the pin pushing mechanism.

Moreover, the drift pin driving device of the present invention including a plurality of pin hoppers may further include the following configuration.
(13) Each pin hopper is provided with a hopper pin confirmation sensor for detecting the presence or absence of a drift pin.

  By adopting such a configuration, when the same type of drift pin is accommodated and used in a plurality of pin hoppers as described above, when one pin hopper becomes empty, the object to be taken out is switched to another pin hopper, Drift pins can be refilled into the empty pin hopper. Thereby, driving of the drift pins can be executed one after another without interrupting the work.

Each device of the present invention may further include the following configuration.
(14) The stop portion of the slope is provided with a pin confirmation sensor in the stop portion that detects the presence or absence of a drift pin.
(15) The V-groove is provided with a V-groove pin confirmation sensor for detecting the presence or absence of a drift pin.

  By providing the pin confirmation sensor in the stay portion and the pin confirmation sensor in the V-groove, the operation timing of the pin insertion rod and the like can be correctly controlled. Further, even when there is no confirmation sensor in the pin hopper, it is possible to know the replenishment timing of the drift pin by these sensors.

Each device of the present invention may further include the following configuration.
(21) A stamp that moves together with the pin insertion rod is provided.

  By adopting such a configuration, the stamp also performs a stamping operation when the pin insertion rod performs a pin driving operation. Thereby, it can be displayed on the pre-cut material whether pin driving is completed. This is because if the drift pin itself is driven, it may not be immediately possible to determine whether it is a pin hole or a pin head. In the case of a special joint, when the drift pin is manually driven later, it is possible to easily determine which precut material should be driven manually.

  According to the present invention, it is possible to drive a drift pin even to horizontal members having different dimensions and types of hardware to be attached, and it is possible to accurately realize the operation for that purpose. As a result, it can be shipped to the factory as a precut material that can improve the automation rate by precutting and can be positioned and prevented from falling at the construction site.

  In the present embodiment, as shown in FIG. 1A, slits Wsa and Wsb for inserting metal fittings at both ends and pin holes Wha1, Whb1, Wha2, Wha3, Whb2, and Whb3 are processed by a pre-cut processing machine. The present invention relates to a drift pin driving apparatus 1 for driving a drift pin Pa (or Pb or Pc) as shown in FIG.

  As shown in FIG. 2 (A), the drift pin driving device 1 of the embodiment includes a take-in conveyor 2 for taking in a horizontal member W that has been processed by a cleaver (not shown) in a pre-cut processing line. Provided upstream. Moreover, the drift pin driving device 1 includes a take-out conveyor 3 on the downstream side (opposite side from the end processing machine). The take-out conveyor 3 plays the same role as the take-in conveyor 2 when driving the drift pin to the rear end side.

  As shown in FIGS. 2A to 2C, the drift pin driving device 1 includes a workpiece conveying / holding means 100, a longitudinal pin hole positioning means 200, a drift pin preparation / selection means 300, a drift, A pin insertion portion elevation positioning means 400 and a drift pin loading means 500 are provided.

  The work material conveying / holding means 100 includes a table roller 101, a table roller driving motor 101m, a ruler 102, a start end side clamper 103a, and a end end side clamper 103b, as shown in FIG. And.

  The table roller drive motor 101m switches the forward / reverse rotation direction so that the horizontal member W is in a forward feed state from the start end to the end direction or in a reverse feed state from the end end to the start end. The table roller 101 can be driven forward and reverse.

  The ruler 102 is fixed at a position on the receiving side facing the clampers 103a and 103b. The ruler 102 is for holding and fixing the horizontal member W from the side surface in cooperation with one of the clampers 103a and 103b when the drift pin is driven. The ruler 102 is cut at the center in the feeding direction. A drift pin is driven from this cut 105.

  The start end side clamper 103a and the end end side clamper 103b are configured to perform stroke operation by the start end side clamp cylinder 104a and the end end side clamp cylinder 104b, respectively. Therefore, when using as a single machine without being incorporated in the pre-cut line, the width of the horizontal member W can be detected from the stroke amount of the clamp cylinders 104a and 104b.

  The longitudinal pin hole positioning means 200 includes a stopper moving base 201, a base moving guide portion 202, a base positioning control motor 203, and a moving screw 204, as shown in FIGS. A start end stopper 211, a terminal end stopper 212, a sub roller 213, and a workpiece detection sensor 221.

  The stopper moving base 201 is guided by the base moving guide portion 202 so as to be movable along the feed direction of the workpiece. The base positioning control motor 203 has a stopper moving base so that when the stoppers 211 and 212 are projected, the pin holes Wha1 and Whb1 of the horizontal member W are positioned at the center of the cut 105 of the rulers 102 and 102. 201 is moved and positioned.

  The stoppers 211 and 212 are rotatably supported with respect to the stopper moving base 201, and are moved up and down by the stopper protruding and retracting cylinders 211a and 212a. Further, the stoppers 211 and 212 are provided with impact confirmation sensors 211b and 212b for confirming that the horizontal member W is in an impact state. Further, a workpiece detection sensor 221 for detecting the horizontal member W is also installed at the center rod of the stopper movement base 201. The sub rollers 213 and 213 are attached to the left and right of the workpiece detection sensor 221 on the stopper moving base 201.

  In the drift pin driving apparatus 1 of the present embodiment, as described above, the drift pin is driven through the cut 105 formed between the rulers 102 and 102. Therefore, the detection signals from the impact sensors 211b and 212b, the detection signals from the workpiece detection sensor 221 and the precut machining data so that the pin holes Wha1 and Whb1 of the horizontal member W are located at the center of the cut 105. Based on this, the position control of the stopper moving base 201 is performed.

  The drift pin preparation / selection means 300 includes four pin hoppers 301a, 301b, 301c, and 301d, as shown in FIGS. Pin agitation rollers 302a, 302b, 302c, and 302d are provided at the bottoms of the pin hoppers 301a, 301b, 301c, and 301d (see FIG. 8). Each of these pin stirring rollers 302a, 302b, 302c, 302d is rotationally driven by pin stirring roller driving motors 303am, 303bm, 303cm, 303dm (see FIG. 7).

  In addition, pin presence confirmation sensors 304a, 304b, 304c, and 304d are installed at the bottoms of the pin hoppers 301a, 301b, 301c, and 301d so that the presence or absence of the drift pin P can be detected (FIG. 7). FIG. 8). Further, pin selection shutters 311a, 311b, 311c, 311d are slidably mounted on the bottoms of the respective pin hoppers 301a, 301b, 301c, 301d, and are opened and closed by pin selection shutter opening / closing cylinders 312a, 312b, 312c, 312d. It is configured to be operated.

  Note that selection of which of the four pin hoppers 301a to 301d is to be taken out is performed by opening the four pin selection shutters 311a, 311b, 311c, and 311d.

  The drift pins P even stored in the pin hoppers 301a (or 301b, 301c, 301d) on which the shutters 311a (or 311b, 311c, 311d) that have moved to the open position are moved down as a whole, and the respective shutters 311a. One drift pin P is lowered onto the bottom plates 313a to 313d below -311d. When the shutter 311a (or 311b, 311c, 311d) in the open state is returned to the closed position, one drift pin P lowered on the bottom plate 313a (or 313b, 313c, 313d) is pushed out. Then, it falls from the pin selection hole 305a formed between the bottom plates 313a and 313b (or the pin selection hole 305b formed between the bottom plates 313c and 313d).

  The drift pin P thus selected and dropped from the pin selection hole 305a (or 305b) is released to the right-down pin slope 314a (or the left-down pin slope 314b) located immediately below the drift pin P. Rolls down toward the center of the device. And it rolls down to the selection pin stop part 315a (or 315b) formed in the lower end of the slope 314a (or 314b) for pins, and stops. Each selection pin retaining portion 315a, 315b is provided with a retaining portion pin presence sensor 316a, 316b for detecting the presence or absence of a pin.

  As shown in FIGS. 6, 8, and 10, the drift pin insertion portion lifting / lowering positioning means 400 includes a lifting body 401, lifting guides 402 and 402, a lifting screw 403, and a lifting motor 403m. It consists of and. By driving the elevating motor 403m, the elevating body 401 vertically guided by the elevating guides 402 and 402 is moved up and down using a screw feed mechanism.

  The drift pin loading means 500 is attached to the elevating body 401 as shown in FIGS. 6, 9, and 10, and includes a pin insertion rod 501, an insertion rod longitudinal movement guide portion 502, and an insertion rod longitudinal direction. A moving cylinder 503, a pin pushing portion 504, and a pin loading slope 505 are configured. The pin push-out portion 504 is configured integrally with the pin insertion rod 501 and is located immediately behind the selection pin retaining portions 315a and 315b. As the pin insertion rod 501 moves forward, the pin pusher 504 also moves forward to push out the drift pin P placed on the pin retaining portions 315a and 315b.

  The drift pin P pushed out from the pin retaining portions 315a and 315b falls to the pin loading slope 505. This pin loading slope 505 is located at the front lower side of the pin slopes 314a and 314b in which the selection pin retaining portions 315a and 315b are formed, and is configured by a V-shaped slope having the center as a lower end. In the present embodiment, the lower end of the pin loading slope 505 is referred to as a pin loading portion 505a (or V groove 505a). The drift pin P pushed out to the pin loading slope 505 is placed in a state of being positioned on the pin loading portion 505a.

  The pin loading unit 505a is provided with a loading unit pin presence confirmation sensor 511 that detects the presence or absence of a drift pin for loading. A stamp 521 is attached to the front surface of the connecting portion 504a that integrally connects the left and right pin push-out portions 504 and 504. This stamp 521 is for impressing the horizontal marking member W with a pin-marked visual mark, and moves forward and backward integrally with the pin insertion rod 501. And it is designed to contact the side surface of the horizontal member W at the forward end position.

  Next, the control system will be described. Operation of the drift pin driving device 1 of the present embodiment is controlled by a control system configured as shown in FIG. Precut processing data is input to the sequencer 600 from the precut control device 700. The machining data is stored in the storage device 601 of the sequencer 600. Further, the sequencer 600 includes impact confirmation sensors 211b and 212b provided in the stoppers, a workpiece detection sensor 221 provided in the moving base, and pin presence confirmation sensors 304a and 304b provided in the pin hoppers. , 304c and 304d, detection signals from the pin presence confirmation sensors 316a and 316b provided in each stay portion, and the pin presence confirmation sensor 511 provided in the loading portion are input. Then, the sequencer 600, based on the input data and detection signals, the table roller drive motor 101m, the start and end clamp cylinders 104a and 104b, the base positioning control motor 203, and the stopper protruding and retracting cylinders 211a and 212a. The control signals are output to the stirring roller driving motors 303am, 303bm, 303cm, and 303dm of each pin hopper, the pin selection shutter opening / closing cylinders 312a, 312b, 312c, and 312d, the lifting motor 403m, and the insertion rod back and forth moving cylinder 503. . The sequencer 600 is fed back with an operation confirmation signal, a stroke signal, and the like from these controlled objects.

  Next, control operations executed by the sequencer 600 will be described with reference to the flowcharts of FIGS. When the processing data of the horizontal member is input from the pre-cut control device 700 to the sequencer 600 (S10: YES), this is stored in the storage device 601 (S20). Based on the machining data, the pin hole position at the end of the horizontal member W to be processed is calculated (S30). Subsequently, the base positioning control motor 203 is driven and controlled to control the position of the start and stop of the stopper 211 on the start end side based on the pin hole position (S40). Then, the start-end side stopper 211 is driven to project the start-end side stopper 211 (S50). Subsequently, the table roller drive motor 101m is driven to advance the pre-cut horizontal member W (S60).

  When the collision check sensor 211b detects that the horizontal member W has stopped against the stopper 211 (S70: YES), the clamp cylinder 104a on the start end side is driven to press the horizontal member W against the ruler 102. Clamping is performed (S80), and the table roller drive motor 101m is stopped (S90). As a result, the center of the pin hole on the starting end side of the horizontal member W is held and fixed at a position where it matches the center of the cut 105.

  Next, a drift pin supply hopper is selected from the pin hoppers 301a to 301d (S100). Then, the shutter opening / closing cylinder of the selected hopper is moved to the retracted position and then again moved to the advanced position (S110, S120). By this operation, one drift pin P is taken out from the selected hopper and sent out to the slope.

  Next, when the stay portion confirmation sensor detects that the drift pin P is present (S130: YES), the insertion rod forward / backward movement cylinder 503 is caused to perform a pin pushing operation (S140). Thereby, the drift pin P is pushed forward from the stay part of the slope, falls to the V-shaped slope 505, and rolls down toward the V groove 505a. The pin pushing operation may be the same stroke operation as the pin driving operation described later, or may be executed with a stroke shorter than the full stroke so that the stamp 521 does not contact the horizontal member W. .

  Next, when the check sensor 511 of the loading unit detects that the drift pin P is present (S150: YES), the elevating motor 403m is driven and controlled to move the height of the V groove 505a to the height of the pin hole. (S160). Then, the insertion rod longitudinal movement cylinder 503 is caused to execute a pin driving operation (S170). As a result, the drift pin P supported by the V-groove 505a is pushed forward by the pin insertion rod 501 and driven into the pin hole of the horizontal member W. At the same time, a stamp indicating that the stamp 521 has been driven is made.

  The stroke at this time is a full stroke operation up to the position where the rod tip contacts the side surface of the horizontal member W. Since the lateral surface of the horizontal member W on the driving device side is at a constant position defined by the ruler 102, the stroke amount can be constant regardless of the width of the horizontal member W. Therefore, the driving operation can be easily controlled, and the performance of the device and the design of the mounting position are also easy.

  When the pin driving operation is thus completed, the insertion rod longitudinal movement cylinder 503 is returned to the initial position in the retracted state (S180). Then, the clamp cylinder 104a and the stopper cylinder 211a on the start end side are returned to the immersive position (S190, S200), and the table roller drive motor 101m is fed forward (S210).

  When the workpiece detection sensor 221 detects that the rear end of the horizontal member W has passed (S220), the table roller drive motor 101m is stopped (S230). Then, the base positioning control motor 203 is driven and controlled in order to control the protruding and retracting position of the stopper 212 on the rear end side (S240). Subsequently, after the rear end side stopper 212 is driven to drive the rear end side stopper 212 (S250), the table roller driving motor 101m is driven in the reverse direction to pre-cut the horizontal member W. Is retracted (S260).

  Hereinafter, the control operation similar to S70 to S200 is executed for the rear end side (S270 to S400). When the rear end pin driving is completed, the table roller drive motor 101m is driven in the forward direction to carry out the horizontal member W (S410). The above processing is repeatedly executed until there is no horizontal member W to which the drift pin P is to be driven (S420).

  When the pin is caught in the pin hopper during operation and is clogged, the detection signals of the pin presence confirmation sensors 304a to 304c detect the absence of the pin. This is because the confirmation sensors 304a to 304c are provided at the exit positions of the hoppers. When it is detected that there is no pin, it is possible to separately execute control for eliminating the pin stirring rollers 302a to 302d by driving them in a timely manner.

  According to the present embodiment, since the loading portion 505a is a V groove, even if the diameter of the drift pin P changes, the center thereof coincides with the center of the V groove. Accordingly, even drift pins having different diameters can be prepared such that the center is at a fixed position. In addition, since the horizontal member W is held and fixed in a state where the center of the pin hole coincides with the center of the cut and the side surface on the driving side is pressed against the ruler, the longitudinal position at the time of driving the pin and the start of driving The distance to the position can be made constant. Therefore, it is only necessary to match the height of the pin insertion rod, it is possible to easily avoid interference with surrounding equipment, and the stroke design is facilitated, and even drift pins with different lengths can be driven reliably. be able to.

  In addition, since it has multiple pin hoppers, prepare different types of drift pins (diameter, length, shape, etc.) for each, depending on the width of the precut material, the type of hardware to be mounted, the diameter of the hole, etc. You can select the most suitable one and type it in. The same type of drift pins may be accommodated in a plurality of pin hoppers. In this case, it is not necessary to provide a large pin hopper in order to increase the pin capacity.

  Furthermore, since the pin insertion rod 501, the pin push-out portion 504, and the stamp 521 are integrally moved back and forth, the drive cylinder can be shared and the number of parts can be saved. Moreover, since the confirmation sensor which detects the presence or absence of a drift pin is provided in the pin hopper, the retention part, and the loading part, it is possible to correctly control the operation timing of the pin insertion rod and the like. In addition, it is possible to know the time of replenishment of the drift pin to the pin hopper and the trouble occurrence state such as pin clogging.

  Since the stamp also performs the stamping operation when the pin insertion rod performs the pin driving operation, it is possible to exert an effect in preventing the forgetting to drive the drift pin on site.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this, It can implement as various aspects within the range which does not deviate from the summary.

  For example, the pin hobber may be stationary or portable. A method that is more suitable for the workability of pin replenishment and replacement may be selected. The stamp 521 may be omitted. Further, the stopper may be one that appears and disappears by slide other than the one that appears by rotation, and may not be a cylinder drive system.

  Regarding the operation of the drift pin shutter, in the embodiment, the pin is on the shutter as the shutter is normally closed, the pin falls to the front side of the shutter when the shutter is open, and the pin is pushed out while closing the shutter. Not limited to. For example, the shutter may be normally opened so that the pin falls to the front side of the shutter, and the pin is pushed out while closing the shutter at the time of selection and dropped into the pin selection hole. Alternatively, a hole that allows one pin to enter is provided in the shutter, and the shutter is advanced from the state where one pin has fallen into the shutter hole to drop the pin in the hole, and the next pin falls into the hole when retreating. You may comprise.

  Further, for example, as shown in FIG. 14, one set of pin hoppers 304 a to 304 d is provided, and the lifting body 401 is configured to be movable left and right, and when a drift pin is prepared, it is moved up and down after moving to the center of the cut. It is good. Since the drift pin is driven at the center of the cut, no interference or the like occurs. Further, the pin hopper may be fixed or portable.

  Furthermore, although this embodiment is a structure without an upper clamp, you may provide an upper clamp.

(A) The perspective view which illustrates the horizontal member which drives a drift pin, (B) is a front view which illustrates some of various drift pins. The drift pin driving device of embodiment is shown, (A) is a top view, (B) is a front view, (C) is a side view. It is a top view of the drift pin driving device as an embodiment. It is a front view of a drift pin driving device as an embodiment. It is a top view of the drift pin driving device as an embodiment. It is a side view of the drift pin driving device as an embodiment. It is a top view of the drift pin driving device as an embodiment. It is an A-A 'sectional view of a drift pin driving device as an embodiment. It is a top view of the drift pin driving device as an embodiment. It is a side view of the principal part of the drift pin driving device as an embodiment. It is a block diagram of a control system in an embodiment. It is a flowchart of the control routine in an embodiment. It is a flowchart of the control routine in an embodiment. It is explanatory drawing of a deformation | transformation aspect. 10 is an explanatory diagram related to Patent Document 1. FIG. 10 is an explanatory diagram related to Patent Document 2. FIG. It is explanatory drawing regarding the patent document 3. FIG. It is explanatory drawing regarding the patent document 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Drift pin driving device 2 ... Taking in conveyor 3 ... Taking out conveyor 100 ... Work material conveyance and holding means 101 ... Table roller 101m ... Table roller drive motor 102 ... Ruler 103a: Start end side clamper 103b ... End side clamper 104a ... Start end side clamp cylinder 104b ... End side clamp cylinder 105 ... Cut 200 ... Longitudinal pin hole positioning means 201 ... Stopper Moving base 202 ... Base moving guide part 203 ... Base positioning control motor 204 ... Moving screw 211 ... Start end side stopper 211a ... Stopper retracting cylinder 211b ... Shock sensor 212 ... Terminal stopper 212a ... Stopper retracting cylinder 212b ··· Shock sensor 213 ··· Sub-roller 221 ··· Sensor for detecting workpiece 300 ··· Drift pin preparation / selection means 301a, 301b, 301c, 301d ··· Pin hoppers 302a, 302b, 302c, 302d ··· Pin stirring roller 303am, 303bm, 303cm, 303dm ... Pin stirring roller driving motor 304a, 304b, 304c, 304d ... Pin presence confirmation sensor 305a, 305b ... Pin selection hole 311a, 311b, 311c, 311d .. Pin selection shutters 312a, 312b, 312c, 312d... Pin selection shutter opening / closing cylinders 313a, 313b, 313c, 313d... Bottom plate 314a, 314b. Part 316 , 316b... Confirmation pin presence sensor 400... Drift pin insertion portion elevating and positioning means 401... Elevating body 402. Elevating guide 403 ... Elevating screw 403 m ... Elevating motor 500 ..Drift pin loading means 501... Pin insertion rod 502... Insertion rod longitudinal movement guide portion 503... Insertion rod longitudinal movement cylinder 504... Pin pushing portion 504 a. Slope for loading 505a... Pin loading section 511... Confirmation sensor with loading section pin 521... Stamp 600... Sequencer 601 ... Storage device 700 ... Precut control device P, Pa, Pb, Pc ... Drift pin Wsa, Wsb ... Slit groove Wha1, Whb1, Wha2, Wha3, Whb2, Whb3 ... Down hole W ··· horizontal member

Claims (5)

A device for driving a drift pin into a precut material that has been subjected to slit processing for inserting a plate portion of a connection hardware by precut processing and hole processing for fixing the connection hardware, and has the following configuration A drift pin driving device characterized by comprising:
(1) A transport device that transports the precut material in the longitudinal direction, a stopper that appears and stops in the transport path of the transport device and stops the tip of the precut material, and a precut material that is stopped by the stopper are fixed. A fixing device for driving, a driving device for driving a drift pin into a pin hole formed in a precut material fixed by the fixing device, and a pin supply device for supplying the drift pin to the driving device. about.
(2) The fixing device includes left and right rulers fixed to one side surface of the transport device, and left and right side surface clampers that protrude toward and away from the ruler, and a gap is formed between the left and right rulers. Being.
(3) The stopper is provided with a moving mechanism that can appear and disappear on the left and right sides of the cut and that can change the stopper position in the longitudinal direction of the transport device.
(4) As the pin supply device, a pin hopper, a shutter mechanism that opens the bottom opening of the pin hopper and takes out the drift pins one by one, and a stop that rolls down the drift pin taken out by the shutter mechanism and stops at the lower end A slope provided with a portion, a pin push-out mechanism that moves back and forth along the stay inside the stay portion from the rear of the slope, and a drift pin pushed forward by the pin push-out mechanism to receive the lower end into the V groove And a V-shaped slope that rolls down and is arranged on the ruler side of the conveying device.
(5) A pin insertion rod that moves back and forth in the V groove along the V groove from the rear side of the V-shaped slope as the driving machine is disposed on the ruler side of the transport device.
(6) An elevating mechanism for moving the pin insertion rod and the V-shaped slope up and down at a position facing the ruler cut is provided. The drift pin driving device according to claim 1, further comprising the following configuration.
(7) Provided with a position control device that controls the stopper position of the stopper in the longitudinal direction of the conveying device and the lifting position of the lifting mechanism based on processing data for precutting the precut material. The drift pin driving device according to claim 1, further comprising the following configuration.
(8) A plurality of pin hoppers as the pin hoppers are arranged side by side so as to be distributed left and right with the V groove as a center.
(9) A right-sloping left slope that accepts a drift pin taken out from a pin hopper on the left side of the V-groove and a left-down side that catches a drift pin taken out from a pin hopper on the right side of the V-groove as the slope With the right slope.
(10) The pin pushing mechanism is provided with a bifurcated rod that moves back and forth simultaneously with respect to both the bottom end retaining portion of the left slope and the bottom bottom retaining portion of the right slope.
(11) The shutter mechanism includes a selection drive device that selects and drives one of the shutters installed for each of the plurality of pin hoppers. The drift pin driving device according to claim 3 , further comprising the following configuration.
(12) The forked rod of the pin pushing mechanism is moved back and forth together with the back and forth movement of the pin insertion rod. The drift pin driving device according to any one of claims 1 to 4, further comprising the following configuration.
(21) A stamp that moves together with the pin insertion rod is provided.

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