JP2008008329A - Linearly reciprocating device and movement restricting device to be used for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow easy fastening operation of a shock absorber or a stopper member such as a male screw member to be mounted on a linear reciprocating device after adjusting the position. <P>SOLUTION: A sleeve 56 is moved in a guide hole 54c by screwing a fixing screw 57 from outward in the cross direction of the residing face of a sliding cylinder 10, and the shock absorber 60 is fastened to a holder 52 by pushing the inner peripheral face of a fitting hole 56a against a male screw portion 61. As a result, instead of a locking nut to be screwed to the shock absorber 60, the fixing screw 57 can be used whose head portion 57a has a smaller diameter than the locking nut, thus securing a space for a fastening tool around the fixing screw 57 of the holder 52 and allowing easy fastening operation of the shock absorber 60 after adjusting the position in the state of mounting a workpiece on the residing face. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a linear reciprocating device that moves a workpiece such as a workpiece or a jig, and a movement regulating device used therefor.

  An example of a linear reciprocating device for linearly reciprocating a workpiece or a jig is a slide cylinder described in Patent Document 1. As shown schematically in FIG. 11, the slide cylinder a includes a support base b fixed to the base P and a table c mounted on the support base b so as to be reciprocally movable in a linear direction as indicated by an arrow in the figure. And. A rod (not shown) incorporated in a cylinder hole inside the support base b is connected to the table c, and the table c is linearly reciprocated by supplying and discharging compressed air to the cylinder hole and driving the rod. Moved.

In order to prevent an impact force from being applied to the table c and the object to be moved W when the table c moves to the position of the stroke end of the reciprocating motion, a shock absorber e is provided on the mounting block d provided on the support base b. The table c is provided with an abutment block f that contacts the shock absorber e. In order to adjust the axial position of the shock absorber e, a male screw is formed on the outer peripheral surface of the shock absorber e, so that the adjusted position does not move due to shock or vibration. The retaining nut g that is screwed to is tightened toward the mounting block d. In the linear reciprocating device in which the table c is moved relatively slowly, the male screw member is attached to the attachment block d without attaching the shock absorber e to the attachment block d.
JP 2000-314407 A

  As described above, in the linear reciprocating device in which the shock absorber e is fixed to the mounting block d by the lock nut fastening method using the lock nut g coaxial with the shock absorber e, the surface of the table c is covered with the cover. Under a state in which the object to be moved W such as a workpiece or a jig is attached, the stop nut g may be covered with the object to be moved W. For this reason, when the lock nut g is fastened after adjusting the position of the shock absorber e in the axial direction, the spanner S is obstructed by the moving object W or the base P as shown in FIG. There is a case where the spanner S cannot be attached to the. In order to operate the lock nut g with the spanner S, conventionally, the adjustment work of the axial position of the shock absorber e is complicated because it is necessary to remove the moving object W attached to the mounting surface of the table c. It has become.

  An object of the present invention is to make it possible to easily perform a fastening operation after adjusting the position of a stopper member such as a shock absorber or a male screw member attached to a linear reciprocating device.

  The linear reciprocating device of the present invention is a linear reciprocating device having a support base and a moving member provided on the support base so as to be linearly reciprocable and provided with a mounting surface on which a moving object is placed. A holder portion provided on the other of the support base and the moving member so as to face a contact surface provided on one of the support base and the moving member, and formed in the holder portion in the moving direction of the moving member. A stopper member that is screw-coupled to the screw hole and abuts against the abutting surface to regulate the moving end position of the moving member; and a guide hole that is formed across the screw hole in the holder portion. A sleeve which is incorporated movably in the width direction of the surface and has a fitting hole through which the stopper member passes, and is attached to the holder portion from the outer side in the width direction, and the sleeve is moved in the guide hole. To the fitting hole And having a fixing screw for fastening the serial stopper member.

  The linear reciprocating device of the present invention is characterized in that a tool hole into which a fastening tool is inserted is provided in the fixing screw.

  In the linear reciprocating device according to the present invention, the stopper member is a shock absorber having an outer cylinder in which an oil solution is sealed and a rod that enters and exits from the outer cylinder.

  In the linear reciprocating device of the present invention, the stopper member is a male screw member.

  The movement restricting device of the present invention is attached to a linear reciprocating device having a support base and a moving member provided on the support base so as to be linearly reciprocable and provided with a placement surface on which the object to be moved is placed. A movement restricting device, wherein the holder is attached to the other of the support base and the moving member so as to face a contact surface provided on one of the support base and the moving member, and the holder in the moving direction of the moving member A stopper member that is screwed into a screw hole formed in the upper surface and that abuts against the abutting surface to regulate the moving end position of the moving member, and a guide hole formed across the screw hole in the holder. A sleeve that is movably incorporated in the width direction of the mounting surface and that is formed with a fitting hole through which the stopper member passes, and is attached to the holder from the outer side in the width direction, and the sleeve is installed in the guide hole. It is dynamic and having a fixing screw for fastening the stopper member into the fitting hole.

  The movement restricting device of the present invention is characterized in that a tool hole into which a fastening tool is inserted is provided in the fixing screw.

  The movement restricting device of the present invention is characterized in that the stopper member is a shock absorber having an outer cylinder filled with oil and a rod that enters and exits from the outer cylinder.

  The movement restricting device of the present invention is characterized in that the stopper member is a male screw member.

  According to the linear reciprocating device of the present invention, the sleeve is moved in the guide hole by screwing the fixing screw of the holder portion from the outer side in the width direction of the mounting surface of the moving member. The stopper member can be fastened to the holder portion by pressing the inner peripheral surface against the stopper member, and a stopper nut coaxial with the stopper member can be eliminated, and a fixing screw having a smaller diameter than the stopper nut can be used instead. Therefore, it is possible to secure a space for the fastening tool to enter around the fixing screw of the holder portion, and easily perform the fastening operation after adjusting the position of the stopper member in a state where the object to be moved is attached to the moving member. be able to.

  According to the linear reciprocating device of the present invention, the tool hole into which the fastening tool is inserted is provided in the fixing screw, so that a fastening tool such as a screwdriver or a hexagonal bar wrench having a long main body in the screwing direction of the fixing screw is provided. Can be used. Therefore, even if a large object to be moved is placed on the moving member, the fastening operation after adjusting the position of the stopper member can be easily performed.

  According to the linear reciprocating device of the present invention, the stopper member is a shock absorber having an outer cylinder in which oil is sealed and a rod that enters and exits from the outer cylinder, so that the impact force transmitted to the moving member can be reduced or different. Generation of sound or the like can be suppressed.

  According to the linear reciprocating device of the present invention, since the stopper member is a male screw member, the rigidity of the stopper member can be increased by making the stopper member solid, and the configuration of the stopper member can be simplified.

  According to the movement restricting device of the present invention, the sleeve is moved in the guide hole by screwing the fixing screw of the holder from the outer side in the width direction of the mounting surface of the moving member, and thereby the inner periphery of the fitting hole of the sleeve. The stopper member can be fastened to the holder by pressing the surface against the stopper member. The stopper nut coaxial with the stopper member can be eliminated, and a fixing screw having a smaller diameter than the stopper nut can be used instead. Therefore, it is possible to secure a space for the fastening tool to enter around the fixing screw of the holder, and to easily perform the fastening operation after adjusting the position of the stopper member with the moving object attached to the moving member. Can do.

  According to the movement restricting device of the present invention, since the tool hole into which the fastening tool is inserted is provided in the fixing screw, a fastening tool such as a screwdriver having a long main body toward the screwing direction of the fixing screw or a hexagonal bar wrench is used. be able to. Therefore, even if a large object to be moved is placed on the moving member, the fastening operation after adjusting the position of the stopper member can be easily performed.

  According to the movement restricting device of the present invention, since the stopper member is a shock absorber having an outer cylinder in which oil is sealed and a rod that enters and exits from the outer cylinder, the impact force transmitted to the moving member is softened or abnormal noise is generated. The generation | occurrence | production etc. can be suppressed.

  According to the movement restricting device of the present invention, since the stopper member is a male screw member, the rigidity of the stopper member can be increased by making the stopper member solid, and the configuration of the stopper member can be simplified.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each drawing showing each embodiment, members having a common function are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 1 is a perspective view showing a slide cylinder as a linear reciprocating device according to a first embodiment of the present invention.

  As shown in FIG. 1, a slide cylinder 10 linearly reciprocates a workpiece W as an object to be moved within a predetermined movement range. This slide cylinder 10 is a base of an automatic assembly apparatus or another slide cylinder. And a support base 30 fixed to the base 20 for installing the slide cylinder 10, and a table (moving member) 40 slidably contacting the support base 30.

  The support base 30 is formed in a substantially rectangular parallelepiped shape, and a table 40 that is also formed in a substantially rectangular parallelepiped shape is freely reciprocating linearly on the upper surface in the thickness direction (upper side in the figure) via a guide rail (not shown). It is attached to. On the side wall portion 31 formed on the side surface of the support base 30, a movement restricting device 50 that restricts movement of the table 40 relative to the support base 30 to one end side (left side in the drawing) of a predetermined amount is provided with a hexagon socket head cap bolt 51. Is mounted through.

  A cylinder hole (not shown) is provided inside the support base 30, and a rod 32 projects from one end side of the cylinder hole. The rod 32 enters and exits from the cylinder hole by supplying and discharging compressed air to and from a cylinder chamber formed inside the cylinder hole. A first end wall 41 provided integrally with the table 40 is fixed to one end side of the rod 32, whereby the rod 32 enters and exits from the cylinder hole by supplying and discharging compressed air into the cylinder chamber. 40 reciprocates linearly with respect to the support 30.

  A second end wall 33 is fixed to the other end side (right side in the figure) of the support base 30, and the table 40 side (upper side in the figure) of the second end wall 33 is the support base 30. A protruding portion 33 a that protrudes laterally from the side wall portion 31 is formed. A shock absorber 60 (described later) that restricts the movement of the table 40 to the other end side of the table 40 and absorbs an impact is screwed to the protrusion 33a.

  The shock absorber 60 screwed to the protruding portion 33a is disposed on the side of the table 40, and is fastened to the protruding portion 33a by screwing a locking nut 34 coaxially to the shock absorber 60. . Here, the shock absorber 60 that is screw-coupled to the protruding portion 33a employs a lock nut fastening type in which the lock nut 34 is prevented from loosening.

  An upper surface portion in the thickness direction (upper side in the figure) of the table 40 is a mounting surface 40a on which the object to be moved is mounted. On the mounting surface 40a, the workpiece W or other slide cylinder (not shown) is mounted. A plurality of bolt holes 42 for fixing the object to be moved by bolts (not shown) and a pin (not shown) on the object side to be moved enter to position the object to be moved. A positioning pin hole 43 is provided. As a result, the object to be moved is positioned and attached with high accuracy on the placement surface 40a.

  A first end wall 41 is fixed to one end side of the table 40 by a pair of hexagon socket head cap bolts 44, and a rod protruding from the cylinder hole of the support base 30 is provided at a substantially central portion of the first end wall 41. One end side of 32 is fixed. A pair of bolt holes 45 for attaching the object to be moved are formed on the end surface of the first end wall 41 in the same manner as the placement surface 40a. It functions as a mounting surface or mounting surface.

  A substantially rectangular parallelepiped contact block 47 is fixed to a side wall portion 46 formed on the side surface of the table 40 by a pair of hexagon socket head cap bolts 48. The contact surface 47a is formed. The front ends of the piston rods 63 of the shock absorber 60 disposed so as to face each of the contact surfaces 47a in the vertical direction are in contact with the contact surfaces 47a.

  2 (a) and 2 (b) are partial sectional views taken along lines AA and BB of the slide cylinder of FIG. 1, FIG. 3 is a sectional view showing the structure of the shock absorber, and FIG. The exploded perspective view which decomposes | disassembles and shows is each represented.

  As shown in FIGS. 2A and 2B, the movement restricting device 50 includes a holder (holder portion) 52 that is attached to the support base 30 by screwing a hexagon socket head cap screw 51. The holder 52 includes a support base side portion 53 having a bolt hole 53a through which the hexagon socket head cap bolt 51 passes, and a table side portion whose width dimension is smaller than that of the support base side portion 53 as shown in FIG. 54.

  The table side portion 54 is provided with a pair of opposed wall portions 54a that face in the moving direction of the table 40, and each of the opposed wall portions 54a has a female screw portion 54b as a screw hole. Yes. A shock absorber 60 as a stopper member in which a male screw portion 61 is formed on the outer peripheral side is screwed into each female screw portion 54b, and the shock absorber 60 is screwed into the table side portion 54, whereby the table 40 It arrange | positions at a side and opposes the contact surface 47a of the contact block 47 shown in FIG.

  A guide hole 54c is defined inside the table side portion 54 so as to cross each female screw portion 54b. A substantially cylindrical sleeve 56 is incorporated in the guide hole 54c. The sleeve 56 is arranged in the left-right direction in FIG. 2B, that is, on the mounting surface 40a of the table 40 shown in FIG. It is movable in the width direction.

  The sleeve 56 is provided with a fitting hole 56a through which the shock absorber 60 passes while being set to be slightly larger in diameter than the diameter dimension of the male screw portion 61 of the shock absorber 60. The inner peripheral surface of the fitting hole 56a is in contact with a plurality of top portions t, t... Of the male screw portion 61 as the sleeve 56 moves in the guide hole 54c. Is configured to hold down the shock absorber 60.

  A female screw portion 56b is formed in a substantially central portion of the sleeve 56 in the moving direction of the sleeve 56, and a fixing screw 57 for moving the sleeve 56 within the guide hole 54c is screwed into the female screw portion 56b. It is supposed to be combined. The fixing screw 57 is slidably inserted from the outside in the width direction of the mounting surface 40a of the table 40 with respect to the perforation 54d formed in the table side portion 54, and thereby, from the outside of the guide hole 54c. A screw coupling operation with respect to the female thread portion 56b of the sleeve 56 can be performed.

  A screw head 57a is formed on the rear end side in the screwing direction of the fixing screw 57. As shown in FIG. 1, the screw head 57a is used as a fastening tool for screwing the fixing screw 57. A hexagonal hole (tool hole) 57b into which the hexagonal bar wrench T is inserted is formed. The sleeve 56 is pulled into the fixing screw 57 side by screwing the fixing screw 57 into the female screw portion 56b with the hexagon stick wrench T, whereby the shock absorber 60 is fastened to the fitting hole 56a. Thus, the shock absorber 60 attached to the holder 52 employs a sleeve fastening type.

  As shown in FIG. 3, the shock absorber 60 includes an outer cylinder 62 in which a male thread portion 61 is formed on the outer peripheral side and an oil liquid such as silicone oil is enclosed therein, and a piston rod (in and out of the outer cylinder 62 ( Rod) 63. A piston 64 is mounted on the right side of the piston rod 63 in the drawing, and a coil spring 65 is mounted between the piston 64 and the bottom of the outer cylinder 62. The coil spring 65 plays a role of returning the piston rod 63 to the protruding state by urging the piston rod 63 in a direction protruding from the outer cylinder 62. A piston ring 66 that slides relative to the outer cylinder 62 is provided around the piston 64, and the piston ring 66 and the piston 64 allow the inside of the outer cylinder 62 to be connected to the first outer cylinder chamber 62 a and the second cylinder 62. The outer cylinder chamber 62b is defined.

  The piston rod 63 is slidably guided by a rod guide 67 provided on the opening side (left side in the figure) of the outer cylinder 62, and on the left side of the rod guide 67 in the figure, An oil seal 68 that prevents leakage of the oil liquid to the outside is attached. A substantially donut-shaped accumulator 69 having a large number of bubbles is mounted on the right side of the rod guide 67 in the figure, and this accumulator 69 is compressed and deformed when the piston rod 63 enters the outer cylinder 62. Thus, the volume change in the outer cylinder 62 is absorbed.

  In the shock absorber 60 configured as described above, when the piston rod 63 is pressed and entered into the outer cylinder 62, the piston ring 66 slides in the outer cylinder 62, thereby the first outer cylinder chamber 62a. And a fluid flow between the second outer cylinder chamber 62b and the second outer cylinder chamber 62b to generate a damping force.

  Next, a method for assembling the movement restricting device 50 and a method for adjusting the position of the shock absorber 60 will be described with reference to the drawings.

  First, the assembly method of the movement restricting device 50 will be described. As shown in FIG. 4, the sleeve 56 is placed in the guide hole 54c with the female thread 56b side of the sleeve 56 facing the table side 54 of the holder 52 as shown in FIG. Include. At this time, the fitting hole 56a of the sleeve 56 is made to face the hole of the female screw part 54b of each opposing wall part 54a.

  Next, the male screw portion 61 of the shock absorber 60 is screwed into the female screw portion 54b formed in each opposing wall portion 54a. At this time, the screwing operation of the shock absorber 60 is continued, and the shock absorber 60 is positioned at a predetermined position with respect to the holder 52. Thereafter, the fixing screw 57 is screwed into the female screw portion 56b of the sleeve 56 and temporarily fixed, whereby the assembly of the movement restricting device 50 is completed.

  Next, a method for adjusting the position of the shock absorber 60 in the movement restricting device 50 mounted on the support base 30 will be described. First, as shown in FIG. 1, in a state where the workpiece W is placed on the placement surface 40a of the table 40, the table 40 is moved with respect to the support base 30, and the workpiece W is moved to the moving end position (left end position in the figure). To be located. In this state, the fixing screw 57 is loosened and the shock absorber 60 is rotated manually or by using an adjustment tool such as a screwdriver (not shown) (not shown) to adjust the screwing amount of the shock absorber 60 into the female screw portion 54b. The position of the shock absorber 60 is adjusted.

  After adjusting the position of the shock absorber 60, the hexagon stick wrench T is faced from the side of the slide cylinder 10 and is inserted into the hexagonal hole 57b. Move within 54c. Then, as shown in FIG. 2A, the inner peripheral surface of the fitting hole 56a in the sleeve 56 is pressed against the plurality of apexes t, t. In this way, the shock absorber 60 is fastened to the holder 52, and the position adjustment of the shock absorber 60 is completed.

  Here, as shown in FIG. 1, the shock absorber 60 fastened to the protruding portion 33 a of the second end wall 33 also moves the workpiece W to the moving end with the workpiece W placed on the placement surface 40 a of the table 40. The position of the shock absorber 60 is adjusted in this state (the state shown in FIG. 1). At this time, since the workpiece W does not cover the shock absorber 60 fastened to the protruding portion 33a, there is no problem as in the prior art by adopting the lock nut fastening type by the lock nut 34. However, in the state shown in FIG. 1, when the work placed on the placement surface 40 a is large enough to protrude toward the second end wall 33, the movement restriction device 50 described above is used instead of the lock nut fastening type. A sleeve fastening type can also be adopted. In this case, for example, the second end wall 33 may be eliminated, and another movement restricting device 50 may be attached to the right side of the side wall 31 of the support base 30 in the drawing.

  As described above in detail, according to the slide cylinder 10 and the movement restricting device 50 according to the first embodiment, the fixing screw 57 of the holder 52 is screwed from the outside in the width direction of the mounting surface 40a of the table 40. The sleeve 56 is moved in the guide hole 54 c, whereby the inner peripheral surface of the fitting hole 56 a of the sleeve 56 can be pressed against the male screw portion 61 of the shock absorber 60 to fasten the shock absorber 60 to the holder 52. In this case, the pressing force applied to the shock absorber 60 by the sleeve 56 is distributed to the plurality of top portions t, t... Of the male screw portion 61, so that the shock absorber 60 itself is deformed or the plurality of top portions t, t,. .. can be prevented from being damaged.

  In addition, the fixing nut 57 having a screw head 57a having a smaller diameter than that of the retaining nut can be used instead of the retaining nut screwed to the shock absorber 60. Space for the fastening tool can be secured. Therefore, the fastening operation after adjusting the position of the shock absorber 60 can be easily performed in a state where the workpiece W is attached to the mounting surface 40a of the table 40.

  Furthermore, since the hexagon socket wrench T into which the hexagon stick wrench T is inserted is provided in the screw head 57a of the fixation screw 57, a hexagon stick wrench having a long main body in the screwing direction of the fixation screw 57 should be used. Even if a large workpiece is placed on the placement surface 40a of the table 40, the fastening operation after adjusting the position of the shock absorber 60 can be easily performed.

  In addition, since the stopper member attached to the holder 52 is the shock absorber 60 having the outer cylinder 62 in which the oil is sealed and the piston rod 63 that enters and exits from the outer cylinder 62, the impact force applied to the table 40 and the workpiece W. Can be softened or the occurrence of abnormal noise can be suppressed.

  Next, the slide cylinder which concerns on 2nd Embodiment of this invention is demonstrated using drawing. FIGS. 5A and 5B are partial sectional views corresponding to FIG. 2 in the second embodiment.

  As shown in FIG. 5, the slide cylinder 10 according to the second embodiment has a movement restricting device 70, and the shape of the fitting hole provided in the sleeve 56 constituting the movement restricting device 70 is the first. It is different from the embodiment.

  As shown in FIG. 5B, the fitting hole 71 provided in the sleeve 56 is formed in a substantially elongated circular shape in cross section, and the amount of movement of the sleeve 56 with respect to the guide hole 54c is the above-described first embodiment. It is set so as to be longer than those. As the fitting hole 71 is elongated, as shown in FIG. 5 (b), the width dimension of the movement restricting device 70 is set to be slightly larger and the gap represented by the symbol L is set to be larger.

  On the support base 30 side of the fitting hole 71, rubber or synthetic resin is filled so that gaps between the fitting hole 71 and a plurality of top portions t, t... Of the male screw portion 61 of the shock absorber 60 are filled. An elastic member 72 made of a material is attached by an adhesive means.

  Also in the slide cylinder 10 which concerns on 2nd Embodiment comprised as mentioned above, there can exist an effect similar to 1st Embodiment mentioned above. In addition, according to the slide cylinder 10 according to the second embodiment, the elastic member 72 comes into contact with the plurality of top portions t, t... Even when the fixing screw 57 is tightened beyond a predetermined tightening torque, the top t of the male thread portion 61 can be reliably protected.

  Next, a slide cylinder according to a third embodiment of the present invention will be described with reference to the drawings. 6 (a) and 6 (b) are partial sectional views corresponding to FIG. 2 in the third embodiment, and FIG. 7 is an exploded perspective view showing the movement restricting device in FIG. 6 in an exploded manner.

  As shown in FIG. 6, the slide cylinder 10 according to the third embodiment has a movement restricting device 80, and the movement restricting device 80 moves in the guide hole 54 c of the sleeve 56 by a fixing screw. This is different from that of the first embodiment.

  In the sleeve 56 according to the third embodiment, the internal thread portion 56b is omitted as compared with the sleeve 56 in the first embodiment, and the moving direction dimension of the sleeve 56 is shortened accordingly. As the sleeve 56 is shortened, the width dimension of the movement restricting device 80 is shortened as shown in FIG.

  The table side portion 54 of the holder 52 is provided with a female screw portion 81 instead of the perforation 54d in the first embodiment, and the female screw portion 81 is formed with a hexagonal hole 82a on the rear end side in the screwing direction. A set screw 82 as a fixed screw is screwed together. By using a hexagon wrench T as shown in FIG. 1, the set screw 82 is entirely screwed into the female screw portion 81 as shown in FIG. 6A.

  By screwing the set screw 82 into the female screw portion 81, the sleeve 56 moves in the guide hole 54 c in a direction away from the female screw portion 81, whereby the inner peripheral surface of the fitting hole 56 a in the sleeve 56 is moved to the shock absorber 60. Are pressed against a plurality of top portions t, t.

  Also in the slide cylinder 10 which concerns on 3rd Embodiment comprised as mentioned above, there can exist an effect similar to 1st Embodiment mentioned above. In addition to this, according to the slide cylinder 10 according to the third embodiment, the width dimension of the movement restricting device 80 can be shortened, and the set screw 82 is completely screwed into the internal thread portion 81, so that the slide cylinder 10 Can be miniaturized.

  In the slide cylinder 10 according to the third embodiment, the fitting hole 56a of the sleeve 56 is elongated as in the second embodiment, and the set screw 82 of the elongated fitting hole 56a is formed. An elastic member may be interposed on the side.

  Next, the slide cylinder which concerns on 4th Embodiment of this invention is demonstrated using drawing. FIGS. 8A and 8B are partial sectional views corresponding to FIG. 2 in the fourth embodiment, and FIG. 9 is an exploded perspective view showing the movement restricting device in FIG. 8 in an exploded manner.

  As shown in FIG. 8, the slide cylinder 10 according to the fourth embodiment has a movement restricting device 90, which is less than the slide cylinder 10 according to the third embodiment. The mounting direction of the sleeve 56 to the table side portion 54 of the holder 52 differs by approximately 90 degrees.

  A mounting hole 91 for incorporating the sleeve 56 into the guide hole 54c is formed above the table side portion 54 in FIG. As shown in FIG. 8 (b), the table side portion 54 is adjacent to the bottom 92 side of the guide hole 54c, and a female screw portion to which a set screw 82 similar to that of the third embodiment is screwed. 81 is formed.

  By screwing the set screw 82 into the female screw portion 81, as shown in FIG. 8 (b), the sleeve 56 tilts in the guide hole 54c around the shock absorber 60 (the mounting surface 40a). In this way, the inner peripheral surface of the fitting hole 56a in the sleeve 56 is pressed against the plurality of apexes t, t... In the male screw portion 61 of the shock absorber 60.

  Also in the slide cylinder 10 which concerns on 4th Embodiment comprised as mentioned above, there can exist an effect similar to 1st Embodiment and 3rd Embodiment mentioned above. In addition, according to the slide cylinder 10 according to the fourth embodiment, the sleeve 56 can be incorporated into the guide hole 54c after the holder 52 is mounted on the support base 30. Therefore, the orientation of the sleeve 56 with respect to the table side portion 54 can be easily adjusted. For example, the shock absorber 60 can be easily replaced.

  In the slide cylinder 10 according to the fourth embodiment, the fitting hole 56a of the sleeve 56 is set large, and an elastic member is interposed on the set screw 82 side of the enlarged fitting hole 56a. May be.

  Next, another embodiment of the stopper member according to the present invention will be described with reference to FIG. FIG. 10 is a plan view showing a threaded rod material as a stopper member of the present invention. The threaded rod material 100 as the stopper member is a second end wall in place of the shock absorber 60 in each of the above-described embodiments. 33 and the holder 52 are attached.

  The threaded rod member 100 is formed of a solid male screw member, a main body portion 102 having a male screw portion 101 formed on the outer periphery, and a synthetic resin material such as rubber attached to the right side of the main body portion 102 in the drawing. It is comprised by the buffer material 103 which consists of. The male screw portion 101 is formed in the same shape (same screw pitch) as the male screw portion 61 of the shock absorber 60 described above.

  Also in the threaded rod member 100 configured in this manner, the buffer member 103 is elastically deformed by the contact surface 47a of the contact block 47 shown in FIG. It is possible to relieve the impact force transmitted to and suppress the generation of abnormal noise. In addition, since the threaded rod member 100 is formed of a solid rod-like material, its rigidity can be increased and the structure can be simplified.

  However, when the threaded rod material 100 is applied to the slide cylinder 10 in which the table 40 is moved relatively slowly with respect to the support base 30, the cushioning material 103 may be omitted. Further, even if the threaded rod member 100 is not attached to both the second end wall 33 and the holder 52, the shock absorber 60 is attached to only one of the second end wall 33 and the holder 52 according to the specifications of the slide cylinder 10. Alternatively, the threaded rod member 100 may be attached.

  In addition, this invention is not limited to said each embodiment, A various change is possible in the range which does not deviate from the summary. For example, in each of the above embodiments, when the stopper member is attached to the table side portion 54, a female screw portion 54b is formed on each of the pair of opposing wall portions 54a, and the male screw portion of the stopper member is formed with respect to each female screw portion 54b. Although the present invention is not limited to this, the present invention is not limited to this, and at least one of the pair of opposing wall portions 54a is formed with the female screw portion 54b, and the stopper member is slidable on either of the other. It does not matter as a penetrating through hole. In short, it is only necessary to secure a screw coupling strength enough to withstand a sudden stop of the table 40 with respect to the support base 30.

  Further, in each of the above embodiments, the movement restricting device is configured separately from the support base 30 and the movement restricting device is mounted on the support base 30 by the hexagon socket head cap bolt 51. The movement restricting device is not limited to the above, and the holder (holder part) is integrally formed so as to protrude to the side of the side wall 31 of the support base 30 and the table (moving member) is mounted on the support base. It does not matter even if it is the structure which assembles.

  Further, in each of the above-described embodiments, the movement restricting device is mounted on the support base 30. However, the present invention is not limited to this and may be mounted on the table 40 as a moving member. In this case, a contact block having a contact surface is mounted instead of the movement restricting device mounted at the moving end position of the support base 30, and a pair of movement control is replaced with the contact block 47 mounted on the table 40. Try to wear the device.

  In each of the above embodiments, the tool hole formed in the screw head 57a of the fixing screw 57 is a hexagonal hole 57b and is screwed with the hexagonal bar wrench T. Not limited to this, a cross hole (plus groove) or a gap (minus groove) may be formed in the screw head 57a of the fixing screw 57, and the screw head 57a may be screwed with a screwdriver (plus driver or minus driver).

  Further, in each of the above-described embodiments, the linear reciprocating device is the slide cylinder 10 having the cylinder hole through which the rod 32 enters and exits. However, the present invention is not limited to this, for example, a magnet type rodless The present invention can also be applied to other linear reciprocating devices such as cylinders and slit type rodless cylinders.

It is a perspective view which shows the slide cylinder as a linear reciprocating device in 1st Embodiment of this invention. (A) and (b) are the fragmentary sectional views which follow the AA line and BB line of the slide cylinder of FIG. It is sectional drawing which shows the structure of a shock absorber. It is a disassembled perspective view which decomposes | disassembles and shows a movement control apparatus. (A) and (b) are the fragmentary sectional views corresponding to Drawing 2 in a 2nd embodiment. (A) and (b) are the fragmentary sectional views corresponding to Drawing 2 in a 3rd embodiment. It is a disassembled perspective view which decomposes | disassembles and shows the movement control apparatus of FIG. (A) and (b) are the fragmentary sectional views corresponding to Drawing 2 in a 4th embodiment. It is a disassembled perspective view which decomposes | disassembles and shows the movement control apparatus of FIG. It is a top view which shows the screw rod material as a stopper member of this invention. It is the schematic of the linear reciprocating device in a prior art.

Explanation of symbols

10 Slide cylinder (linear reciprocating device)
20 base 30 support base 40 table (moving member)
40a Placement surface 47a Contact surface 50, 70, 80, 90 Movement restriction device 52 Holder (holder part)
54b Female thread (screw hole)
54c Guide hole 56 Sleeve 56a, 71 Fitting hole 57 Fixing screw 57b, 82a Hexagon socket (tool hole)
60 Shock absorber (stopper member)
61, 101 Male thread part 62 Outer cylinder 63 Piston rod (rod)
82 Set screw (fixing screw)
100 Screw rod (stopper member, male screw member)
T Hexagon wrench (fastening tool)
W Workpiece (object to be moved)

Claims (8)

A linear reciprocating device having a support base and a moving member provided on the support base so as to be linearly reciprocable and provided with a placement surface on which a moving object is placed,
A holder portion provided on the other side of the support base and the moving member opposite to a contact surface provided on one of the support base and the moving member;
A stopper member that is screw-coupled to a screw hole formed in the holder portion in the moving direction of the moving member, and that abuts against the abutting surface and regulates a moving end position of the moving member;
A sleeve that is incorporated in a guide hole formed across the screw hole in the holder part so as to be movable in the width direction of the mounting surface, and a fitting hole through which the stopper member passes is formed;
A linear reciprocating device, comprising: a fixing screw which is attached to the holder portion from the outer side in the width direction and moves the sleeve in the guide hole to fasten the stopper member in the fitting hole.   2. The linear reciprocating device according to claim 1, wherein a tool hole into which a fastening tool is inserted is provided in the fixing screw.   3. The linear reciprocating device according to claim 1, wherein the stopper member is a shock absorber having an outer cylinder in which an oil is sealed and a rod that enters and exits from the outer cylinder. apparatus.   3. The linear reciprocating device according to claim 1, wherein the stopper member is a male screw member. A movement restricting device attached to a linear reciprocating device having a support base and a movable member that is mounted on the support base so as to be linearly reciprocable and provided with a placement surface on which the object to be moved is placed,
A holder attached to the other of the support base and the moving member opposite to a contact surface provided on one of the support base and the moving member;
A stopper member screwed to a screw hole formed in the holder in the moving direction of the moving member, and abutting on the abutting surface to regulate the moving end position of the moving member;
A sleeve which is incorporated in a guide hole formed across the screw hole in the holder so as to be movable in the width direction of the mounting surface, and a fitting hole through which the stopper member passes is formed;
A movement restricting device, comprising: a fixing screw that is attached to the holder from the outside in the width direction, and that moves the sleeve in the guide hole and fastens the stopper member in the fitting hole.   6. The movement restricting device according to claim 5, wherein a tool hole into which a fastening tool is inserted is provided in the fixing screw.   7. The movement restricting device according to claim 5, wherein the stopper member is a shock absorber having an outer cylinder in which oil is sealed and a rod that enters and exits from the outer cylinder.   7. The movement restricting device according to claim 5, wherein the stopper member is a male screw member.

Images