JP2008132552A - Screwdriver device and screw attaching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screwdriver device and a screw attaching device capable of fastening a screw member such as a bolt and nut wherein one is connected to a long member such as a tube or a hose, to a workpiece having its attaching part. <P>SOLUTION: The screwdriver device 2 is provided with a socket part having an attachment hole 23 with one opened 24 part, and fastening the screw member 10 such as a nut and bolt by attaching and turning the screw member 10 in the attachment hole 23, a casing part 18 provided with a cutout groove 25 corresponding to the attachment hole 23 with one opened 24 part and turnably holding the socket part, and a driving means 5 for carrying out rotary driving of the socket part. The socket part has an attachment protruding part 22a provided protruding from the casing part 18, the attachment hole 23 is provided on a tip of the attachment protruding part 22a, and the opening 24 of the attachment hole 23 is formed throughout the whole in a rotary axis direction of the socket part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a screwdriver and screw used to tighten or loosen a screw member such as a bolt or a nut provided at an end of a long member such as a pipe or a hose to a component to which the bolt is attached. It relates to a mounting device.

  As such a conventional screw tightening device, a device as described in Japanese Patent Application Laid-Open No. 2002-187027 (Patent Document 1) which has been previously published is known. As shown in FIG. 6, the screw tightening device includes a gantry 53, moving plates 54 and 56, air cylinders 55 and 57, a support plate 58, a support plate lock 59, a screw tightening unit 60, a work presser unit 61, a tightening unit. The accessory tool 62, a handle portion 64, an operation box 65, a control device 70, and the like are included. When the workpiece 51 to which the bolt 80 is attached is set on the workpiece holder 52 and the bolt 80 is tightened, first, the bolt 80 is attached to the workpiece 51 and the fastening tool 62 attached to the screw fastening unit 60 is used. The horizontal position is held in a free state and a temporary tightening operation of the bolt 80 is performed. Thereafter, the horizontal position of the tightening tool 62 is fixed and the final tightening operation of the bolt 80 is performed.

According to this screw tightening device, when a screw is attached to a work piece (for example, work 51) to which a screw (for example, bolt 80) is attached, the screw tightening position can be easily set, and the screw in an inclined state can be set. Tightening can be reliably prevented, and a screw tightening device that can secure a stable screw tightening state can be provided.
JP 2002-187027 A

  By the way, in such a screw tightening device, for example, a tightening tool 62 for inserting and tightening a hexagonal head of a bolt 80 is provided continuously to a lower end of a tightening unit 60 for rotationally driving the tightening tool 62. . Therefore, using such a screw tightening device, for example, a screw member such as a water supply tool or the like having a long member such as a pipe or a hose connected to one side is fastened to a workpiece having the mounting portion. In such a case, since the screw member cannot be inserted into the tightening tool 62 due to the attachment of such a long member, the long member such as a tube or a hose is removed and the screw member is tightened, and then the tube is again connected. It is necessary to join a long member such as a hose. In addition, when a tube, a hose, or the like cannot be removed, such a screw tightening device cannot be used. Therefore, a tightening operation must be performed manually using a tool such as a spanner. That is, in such a case, there is a problem that the efficiency of the tightening operation is greatly reduced.

  In order to solve such a problem, the present invention eliminates the need to remove a screw member such as a bolt or a nut in which a long member such as a tube or a hose is connected to one side, and attaches the screw member to its mounting portion. It is an object of the present invention to provide a screwdriver and a screw attachment device that can be tightened to a workpiece having the following.

  In order to solve the above-mentioned problem, the invention according to claim 1 has a mounting hole that is partially open, and a screw member such as a bolt or a nut is mounted in the mounting hole and rotated to tighten the screw member. Alternatively, the socket portion includes: a loosening socket portion; a casing portion that is provided with a notch groove corresponding to the opening of the mounting hole, and that rotatably holds the socket portion; and a drive unit that rotationally drives the socket portion. Has a mounting protrusion that protrudes from the casing portion, the mounting hole is provided at the tip of the mounting protrusion, and the opening of the mounting hole extends over the entire rotation axis direction of the socket portion. It is the formed screwdriver.

  According to this, even when a long member such as a tube or a hose is continuously provided on one of the screw members, the screw member is attached to the attachment hole, and further, The long member can be loaded into the opening of the mounting hole so as to penetrate the opening along the rotational axis direction of the socket portion. That is, the screw member can be attached to a workpiece or the like and tightened without removing a long member such as the tube or hose.

  In addition, since the mounting hole is provided in the mounting projection provided so as to protrude from the casing portion, for example, a part or the like may be provided in the vicinity of the mounting position of a workpiece or the like to which the screw member is mounted. Since only the mounting protrusion can be moved closer to the mounting position of the workpiece, the casing portion around the mounting protrusion can be positioned so as to avoid parts around the mounting position, etc. Can be tightened.

According to a second aspect of the present invention, in the first aspect of the invention, the mounting projection has a large mounting hole on the tip side and a smaller mounting hole on the back side. It is the formed screwdriver.
According to this, a plurality of screw members having different sizes can be easily mounted and tightened in the mounting holes of the mounting protrusions.

  The invention according to claim 3 is the invention provided with the screwdriver according to claim 1 or 2, wherein the guide means for movably guiding the casing part in the direction of the rotation axis, A work member fixing means for detachably fixing a work member for tightening or loosening a screw member, and an attachment for detecting that the screw member attached to the attachment hole by movement of the casing portion has reached the attachment position of the work member Position detection means, standby position detection means for detecting that the socket part having the mounting hole is returned to a predetermined standby position by movement of the casing part, and control means for controlling the drive means, The control means detects the socket portion by the drive means when the attachment position detection means detects that the screw member has reached the attachment position of the work member. Rotation driving is enabled, and when it is detected by the standby position detection means that the socket portion having the mounting hole is returned to the predetermined standby position, the opening of the mounting hole that the socket portion has is opened in the casing portion. In the screw mounting device, the socket portion is rotationally driven by the driving means in accordance with a position corresponding to the notch groove.

  According to this, since the rotational drive is restricted until the screw member is mounted in the mounting hole of the socket portion and moves to the mounting position of the work member, the mounting operation can be performed safely. Further, when the socket portion having the mounting hole for mounting the screw member is returned to the predetermined standby position, the opening of the mounting hole is rotated according to a position corresponding to the notch groove of the casing portion. Therefore, the screw member provided with a long member such as a tube or a hose on one side can be mounted in the mounting hole of the socket portion at an appropriate time.

  As described above, according to the first aspect of the present invention, a screw member provided with a long member such as a pipe or a hose is connected to one side without removing the long member. It is also possible to tighten the screw member without any trouble even if parts are arranged around the mounting position of the workpiece to which the screw member is attached. The member can be tightened efficiently.

According to the second aspect of the present invention, since a plurality of screw members having different sizes can be easily mounted and tightened in the mounting hole of the socket portion, the screwdriver is highly versatile and easy to handle. Can be provided.
According to the invention of claim 3, the screw member can be safely tightened to the work member, and the screw member having a long member such as a pipe or a hose can be inserted into the socket portion in a timely manner. Since it is possible to perform the tightening operation by mounting the mounting holes provided, it is possible to provide a screw mounting device that is safe and has high work efficiency.

Embodiments of the present invention will be described with reference to the drawings. 1 is a front view showing a screw mounting device according to an embodiment of the present invention, FIG. 2 is a side view showing the screw mounting device according to the embodiment of the present invention, and FIG. 3 is a plan view showing the screw mounting device according to the embodiment of the present invention. It is.
As shown in the figure, the screw mounting device 1 includes a rectangular base 3 having a substantially flat upper surface, a bolt arranged on the upper surface thereof, and a long member 10b such as a tube and a hose described later, A screwdriver 2 for attaching and tightening a screw member 10 such as a nut, a drive device (drive means) 5 for rotationally driving the screw member 10 attached to the screwdriver 2, and a screw member 10 are attached. A work part mounting base (working member fixing means) 6 that fixes and attaches a work part (working member) 11 to be fixed at a predetermined position, and a screwdriver 2 to which a screw member 10 is attached are attached to the work part mounting base 6 A guide rail (guide means) 7 that guides and moves toward the attached work part 11 and the screwdriver 2 can be guided by the guide rail 7 to attach the screw member 10 to the screw member attaching portion 11a of the work part 11. position An attachment position detection sensor (attachment position detection means) 15 for detecting the movement and a screw member 10 attached to the screwdriver 2 are fastened to the work part 11 and then guided by the guide rail 7 and screwed. The apparatus 2 includes a standby position detection sensor (standby position detection sensor) 16 that detects that the apparatus 2 has returned to the standby position where the screw member 10 is mounted again.

FIG. 4 is a front view showing a screwdriver 2 constituting the screw attachment device 1 of the embodiment of the present invention, and FIG. 5 is a side view thereof.
As shown in the figure, the screw driver 2 is engaged with a drive gear 19 and a drive gear 19 that are connected to a drive device 5 and a drive shaft 8 in a case portion (casing portion) 18 that forms an outer shell. Thus, the intermediate gear 20 is rotatably supported by a shaft portion 18a protruding in the case portion 18, and is supported by the shaft portion 18b which is engaged with the intermediate gear 20 and similarly protruded in the case portion 18. The driven gear 21 and a socket gear (socket portion) 22 that is rotatably held at a position that meshes with both the drive gear 19 and the driven gear 21 are disposed, and a gear train is provided.

  The socket gear 22 is provided with a substantially cylindrical projecting portion (a mounting projecting portion) 22a projecting from the case portion 18 on one side along the rotational axis of the gear, and at the tip of the projecting portion 22a, A screw mounting hole (mounting hole) 23 for mounting a screw member 10 such as a bolt or a nut is formed concentrically therewith. Further, the screw mounting hole 23 provided in the protruding portion 22a of the socket gear 22 is provided with a screw mounting hole (mounting hole) 23a corresponding to the screw member 10 having a large size on the distal end side of the protruding portion 22a, and on the back side thereof. A screw mounting hole (mounting hole) 23b corresponding to the smaller screw member 10 is formed. That is, with such a configuration, a plurality of screw members 10 having different sizes can be easily attached without using an adapter or the like.

  Further, a part of the periphery of the screw mounting hole 23 is notched outward, and an opening 24 is formed through the screw mounting 23 hole and the outside. Since the opening 24 is formed along the entire rotation axis of the socket gear 22, the socket gear 22 is formed by lacking the arc-shaped tooth row of the portion where the opening 24 is located. Has been. Here, the drive gear 19 and the driven gear 21 that mesh with the socket gear 22 are arranged so that the opening 24 from which the tooth row of the socket gear 22 is missing fits between the meshing positions. In other words, even if the socket gear 22 is provided with the opening 24 lacking the tooth row, either the driven gear 21 or the drive gear 19 is configured to mesh with the socket gear 22. 5 is always driven to rotate in a constant state.

  The case portion 18 that covers the gear train configured as described above corresponds to the screw mounting hole 23 provided in the protruding portion 22a of the socket gear 22 inside and the opening 24 that passes through the screw mounting hole 23 and the outside. Thus, a notch groove 25, one of which communicates with the outside, is formed at a predetermined position. That is, when the socket gear 22 is rotated so that the screw mounting hole 23 and the opening 24 provided in the socket gear 22 correspond to the notch groove 25 of the case portion 18, the screw mounting hole 23 and the opening 24 are It will be in the state connected with the outside of case part 18. FIG. Therefore, in this state, the screw member 10 having the long member 10b such as a tube or a hose on one side can be easily attached to and detached from the screw mounting hole 23.

  The guide rail 7 that guides and moves the screwdriver 2 toward the work component mounting base 6 is disposed on one side of the case portion 18 of the screwdriver 2 while holding it. Then, the screwdriver 2 is guided movably along the rotation axis of the socket gear 22. In addition, a stick-shaped grip portion 27 for manually moving and operating the screwdriver 2 is provided on the other side upper portion of the case portion 18. A driving switch 28 for operating the driving device 5 is provided on the top of the grip portion 27.

  The drive device 5 is provided opposite to the screw driver 2 in the standby position (the position indicated by the solid line in FIGS. 2 and 3) and spaced apart on the moving direction side. A drive gear 19 is inserted. A spline mechanism (not shown) is formed on the drive shaft 8, and the drive gear 19 is rotationally driven by the drive shaft 8 and is mounted so as to be movable along the axis.

  The work part mounting base 6 that fixes and attaches the work part 11 to which the screw member 10 is fastened to a predetermined position is mounted, and the work part 11 on which the work part 11 is positioned and placed, and the work part on the stand 31 are pressed. And a latch mechanism portion 32 for fixing. The latch mechanism 32 includes a leg 34 that includes a soft member 34a such as rubber at its tip and presses the work part 11 from above, and an operation lever 35 that moves the leg 34 up and down in conjunction with the leg 34. In the latch mechanism 32, when the operation lever 35 is operated in the upright state, the leg portion 34 presses and fixes the work part 11 on the mounting table 31 from above, and tilts the operation lever 35 in the upright state. If it does so, the leg part 34 will evacuate upwards and it will function so that fixation of the work component 11 may be cancelled | released.

  Further, an attachment position detection sensor 15 that detects that the screw driver 2 has moved to a position where the screw member 10 can be attached to the work part 11 (a position indicated by a broken line in FIGS. 2 and 3), and the screw driver 2 is a screw Standby position detection sensors 16 that detect return to the standby position where the member 10 is mounted are provided near both ends of the moving path of the screwdriver 2. These detection sensors 15 and 16 are arranged on the side facing the guide rail 7 so that the actuator portion is pressed against the switch operation member 29 provided on the side portion of the case member 18 to operate. Here, when the attachment position detection sensor 15 detects that the screw driver 2 has moved to a position where the screw member 10 can be attached to the work part 11, the control means (not shown) controls the socket gear 22 by the drive device 5. Enables rotational drive. When the standby position sensor 16 detects that the screwdriver 2 has returned to the predetermined standby position where the screw member 10 is mounted, the control means moves the socket gear 22 from the screw mounting hole 23 to the outside. The drive device 5 is rotationally driven so that the opening 24 therethrough is aligned with a position corresponding to the notch groove 25 of the case portion 18.

  In the screw mounting device 1 configured as described above, when the screw member 10 such as a bolt or nut connected to the long member 10b such as a pipe or a hose is attached to the work part 11, first, the screw driver in the standby position. 2, the screw member 10 is mounted in a screw mounting hole 23 (23 a or 23 b) formed at the tip of the socket gear 22 (see FIG. 5). In this case, since the screw mounting hole 23 of the socket gear 22 and the opening 24 through the outside are located corresponding to the notch groove 25 of the case portion 18, a long member such as a pipe or hose connected to the screw member 10. 10 b is inserted into the opening 24 through the notch groove 25 of the case portion 18 and mounted along the rotation axis of the socket gear 22. That is, the screw member 10 can be easily attached to the device 2 by turning the screw member 10 without removing the long member 10b such as a tube or a hose connected to the screw member 10 in this way.

  Next, the gripping portion 27 provided in the case portion 18 of the screwdriver 2 is gripped, and the screwdriver 2 is moved toward the work part 11 by the guide rail 7. Then, after the screwdriver 2 is moved to a position where the screw member 10 can be attached to the work part 11, the socket switch 22 is driven to rotate by operating the drive switch 28 provided on the top of the gripper 27, and the screw The screw member 10 mounted in the mounting hole 23 is rotated and fastened to the work part 11 for mounting. Here, the driving device 5 that rotationally drives the socket gear 22 is controlled when the screwdriver 2 moves to a position where the screw member 10 can be attached to the work part 11 and is detected by the attachment position detection sensor 15. Even if the drive switch 28 provided on the top of the gripper 27 is operated before the screwdriver 2 moves to a position where the screw member 10 can be attached to the work part 11, the drive switch 28 is operated. , It will not drive. That is, the malfunction of the socket gear 22 can be prevented and the screwdriver 2 can be moved and operated safely.

  Further, after the screw member 10 is fastened and attached to the work part 11, when the screw driver 2 is pulled away from the work part 11 and returned to the original position, the screw driver 2 is returned to the standby position by the standby position detection sensor 16. As a result, the socket gear 22 is rotationally driven by the control means in accordance with the position corresponding to the notch groove 25 of the case portion 18 with the opening 24 through the screw mounting hole 23 and the outside. Therefore, it is possible to easily attach the screw member 10 including the long member 10b such as a pipe or a hose to the socket gear 22 of the screwdriver 2 in the standby state again at an appropriate time.

  Further, since the screw mounting hole 23 provided in the socket gear 22 is provided in the protruding portion 22a provided so as to protrude from the case portion 18 that holds it rotatably, the mounting position of the work part 11 to which the screw member 10 is attached is provided. When other screw members 10 and the like are protruded and attached to the periphery (see FIG. 3), only the protrusion 22a is brought close to the work part 11 and the surrounding case portion 18 is avoided from the other screw members 10 and the like. Since they can be separated from each other, the screw member 10 can be attached to the work part 11 without any trouble even in such a case.

  As described above, according to the screw driving device 2 constituting the screw mounting device 1 of the embodiment of the present invention, the screw member 10 including the long member 10b such as a tube or a hose connected to one side is used as the long member. 10 b can be fastened and attached to the work part 11 without removing it, and when other parts are arranged around the attachment position of the work part 11 to which the screw member 10 is attached, they can be avoided without any trouble. Since the screw member 10 can be tightened, the tightening operation of the screw member 10 can be performed efficiently.

In addition, since the screw driver 2 can attach a plurality of screw members 10 having different sizes to the screw mounting hole 23 of the socket gear 22 without using an adapter or the like, and can be tightened to the work part 11. The screwdriver 2 that is highly versatile and easy to handle can be provided.
Furthermore, according to the screw attachment device 1 of the embodiment of the present invention, the screw member 10 can be securely tightened to the work part 11 and the screw provided with the long member 10b such as a tube or a hose. Since the member 10 can be attached to the screw attachment hole 23 provided in the socket gear 22 at an appropriate time and the tightening operation can be performed, the screw attachment device 1 that is safe and has high work efficiency can be provided.

  Needless to say, the present invention is not limited to the apparatus shown in this embodiment mode, and application changes can be made within the scope of the spirit of the present invention. For example, if the driving device 5 for driving the screwdriver 2 is formed integrally with the case portion 18 of the screwdriver 2 and the screwdriver 2 is configured to be detachable from the guide rail 7, Even when the screw member 10 is attached to the work part 11 that cannot be attached, the screwdriver 2 can be removed and used.

It is a front view which shows the screw attachment apparatus of embodiment of this invention. It is a side view which shows the screw attachment apparatus of embodiment of this invention. It is a top view which shows the screw attachment apparatus of embodiment of this invention. It is a front view which shows the screwdriver which comprises the screw attachment apparatus of embodiment of this invention. It is a side view which shows the screwdriver which comprises the screw attachment apparatus of embodiment of this invention. It is a schematic block diagram which shows the structure of the screw fastening apparatus of conventional embodiment.

Explanation of symbols

1 Screw mounting device
2 Screwdriver 3 Base 5 Drive device (drive means)
6 Workpiece mounting base (workpiece fixing means)
7 Guide rail (guide means)
10 Screw member 11 Work part (work member)
15 Mounting position detection sensor (Mounting position detection means)
16 Standby position detection sensor (standby position detection means)
18 Case part (casing part)
22 Socket gear (socket part)
22a Protrusion (mounting protrusion)
23 Screw mounting hole (Mounting hole)
23a Large screw mounting hole (mounting hole)
23b Small screw mounting hole (mounting hole)
24 Opening 25 Notch groove

Claims (3)

  A socket part having a partly opened mounting hole, and a screw part such as a bolt or a nut attached to the mounting hole and rotating to rotate or tighten the screw member, and a cutout corresponding to the opening of the mounting hole A casing portion that is provided with a notch and rotatably holds the socket portion; and a driving means that rotationally drives the socket portion, and the socket portion has a mounting protrusion that protrudes from the casing portion. The mounting hole is provided at the tip of the mounting projection, and the opening of the mounting hole is formed over the entire rotation axis of the socket.   2. The screwdriver according to claim 1, wherein the mounting protrusion has a large mounting hole formed on a distal end side and a smaller mounting hole formed on the back side thereof. Guiding means for movably guiding the casing part in the direction of the rotation axis, work member fixing means for detachably fixing a work member for tightening or loosening the screw member, and mounting in the mounting hole by movement of the casing part An attachment position detecting means for detecting that the screw member has reached the attachment position of the work member, and detecting that the socket portion having the attachment hole is returned to a predetermined standby position by the movement of the casing portion. A standby position detection means, and a control means for controlling the drive means,
The control means enables rotation of the socket portion by the drive means when the attachment position detection means detects that the screw member has reached the attachment position of the work member,
When it is detected by the standby position detecting means that the socket portion having the mounting hole is returned to the predetermined standby position, the opening of the mounting hole of the socket portion corresponds to the notch groove of the casing portion. The screw mounting device provided with the screwdriver according to claim 1 or 2, wherein the socket portion is rotationally driven by the driving means in accordance with a position.

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