JP4507015B2 - Conveyor using sliding bed - Google Patents

Description

  The present invention relates to a conveying device using a sliding bed that slides on a roller rail on the traveling path side.

A conveying device that propels the loading platform with a driving roller of friction driving means on the traveling path side is known from, for example, Patent Document 1. On the other hand, it is also known, for example, from Patent Document 2 and the like that a wheel is not provided on the loading platform and is movably supported by a roller rail on the traveling path side. Therefore, by supporting the loading platform described in Patent Document 1 by the method described in Patent Document 2, the sliding platform supported movably on the roller rail laid on the traveling path side is parallel to the traveling direction. Conveyance using a sliding bed that is provided with a friction driving bar and that pushes the friction driving bar on the loading platform side against the driving roller of the friction driving means installed on the traveling path side to propel the sliding loading platform. The device can be easily invented by those skilled in the art, but heretofore, a practical configuration has not been considered for a transfer device using this type of sliding carrier.
Japanese Patent Laid-Open No. 2005-239056 JP 2006-21618 A

  That is, a conveying apparatus having a configuration in which a sliding bed having no wheels and propulsion means is propelled by friction drive means on the travel path as described above by simply combining the configurations described in Patent Document 1 and Patent Document 2 known in the art. When trying to realize the above, a roller rail that movably supports the loading platform is laid in the entire travel route, and friction drive means are disposed in the travel route at appropriate intervals in the travel direction. In such a configuration, the roller rails of unit length constituting the travel route are laid in parallel throughout the travel route while being serially connected to each other, and the friction drive means includes an installation position between the pair of left and right roller rails and an interval in the travel direction. However, it is necessary to install it separately from the roller rail laying work, resulting in a lot of labor and time. It is not easy to change the layout of the travel route or the number of storage units in the storage line of the sliding platform.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a slide carrier-based transport device capable of solving the above-described conventional problems, and the slide carrier-based transport device according to claim 1 will be described later. When the reference sign of the embodiment is attached and shown, the sliding platform 1 that supports the workpiece W includes a pair of left and right rod-shaped sliding members 2a and 2b that are parallel to the traveling direction of the loading platform, and the pair of left and right bars that are parallel to the traveling direction of the loading platform. The friction drive bar 4 is provided between the sliding members 2a and 2b and is longer than the entire length of the work W to be supported. The traveling path on which the sliding carrier 1 travels is provided with a pair of left and right rod-shaped sliding members 2a and 2a. And a pair of roller rails 22 and 23 that support the sliding platform 1 so as to be movable only in the traveling direction of the platform, and a friction drive means 25 including a drive roller 31 that presses against the lower surface of the friction drive bar 4. Use of sliding bed In the transfer device, each of the sliding platforms 1 is divided into lengths that can support only one sliding platform 1 including the friction drive bar 4 and are not connected to each other in the traveling path direction. Rail units 21 installed independently of each other, and each rail unit 21 includes a pair of left and right roller rails 22 and 23 that movably support the pair of left and right rod-like sliding members 2a and 2a, Connecting members 24a and 24b for connecting and integrating the roller rails 22 and 23 to each other; and one friction drive means 25 attached to the connecting member 24a and provided at one end in the length direction of the rail unit 21; Each rail unit 21 has an interval L2 between the drive rollers 31 of the friction drive means 25 provided in each rail unit 21 so that the friction unit 25 To be substantially equal to the storage pitch L1 of the sliding bed 1 in a state in which if driving bar 4 is butted, and has a laid configuration.

  In carrying out the present invention with the above configuration, specifically, as described in claim 2, the friction drive bar 4 is disposed at a central position between the pair of left and right rod-shaped sliding members 2a and 2b. Can do.

  Further, as described in claim 3, the pair of left and right roller rails 22 and 23 constituting the rail unit 21 are supported by a roller 26 with a pair of ribs provided with a pair of left and right flanges at appropriate intervals. And a pair of left and right rod-shaped sliding members 2a and 2b, and a pair of left and right rod-shaped sliding members 2a and 2b. In the connecting portion between the rod-shaped sliding member 2a on the side supported by 22 and another member, concave groove portions 12a to 12f that allow passage of the pair of left and right flange portions of the roller 26 with both flanges can be formed.

  According to a fourth aspect of the present invention, both ends of the friction drive bar 4 are juxtaposed in the left and right lateral directions with respect to the traveling direction when adjacent sliding platforms 1 approaching the front and rear in the traveling direction approach each other. The protruding pieces 15a and 15b having the same length as the lower surface 4a of the friction driving bar 4 are provided so as to be flush with each other and the friction driving bars 4 of the sliding bed 1 adjacent to each other in the traveling direction are arranged in parallel. It can comprise so that it may mutually face through 15a, 15b.

  Furthermore, as described in claim 5, the friction drive means 25 is configured so that the base 33 that supports the motor 32 with the drive roller 31 is not placed on the connection member 24 a of the rail unit 21. 24a, mounting frames 51a and 51b mounted on the connection member 24a and fixed to the base 33 through the height adjusting bolt 53. A board 52 can be provided.

  Each rail unit constituting the traveling path of the sliding platform is divided into lengths that support only one sliding platform in the storage state where the sliding platform is in a state where the friction drive bars are opposed to each other. Since the rail unit is provided with friction drive means attached to the connecting member constituting the rail unit at an end portion, not at an intermediate position in the length direction, the rail unit is placed on the travel path with friction. Just install it while measuring so that the distance between the drive rollers of the drive means is almost equal to the storage pitch of the sliding bed when the friction drive bars are in contact with each other. Storage lines that can store slide carriers and start one by one from the top slide carrier, and each slide carrier at appropriate intervals Etc. running line which can be run at a predetermined speed can be easily constructed easily.

  Further, when it is desired to change the number of storage units in the storage line, it is only necessary to increase or decrease the rail units. When changing the travel route length in the travel line, it is only necessary to increase or decrease the rail units. Of course, it is not necessary to connect the roller rails in the traveling direction, and the rail unit laying work itself can be performed easily and easily, but the length of the roller rails of each rail unit is appropriately shorter than the storage pitch of the sliding platform. In this case, a space is secured between the roller rails of the installed rail unit, and the friction drive means is disposed at the end of each rail unit, so that the friction drive means of the rail unit on which the sliding platform is temporarily supported Even if maintenance work is required, the operator can easily move into the travel path from the space without the roller rails between the rail units and move the sliding platform easily. Maintenance work can be performed.

  According to the configuration described in claim 2, in combination with the configuration described in claim 1, when installing the rail unit, there is no right / left direction with respect to the traveling direction, and the friction drive means is provided for each rail unit. It can be installed by selecting either the direction that comes to the front end side (traveling direction side) or the direction that the friction drive means comes to the rear end side of each rail unit, and the sliding platform is rubbed at the center of its width. Since it can be driven, the straightness of the frictionally driven sliding bed is good, the wear of the collar part of the roller of the roller rail with a collar can be suppressed, and the sliding can be smoothly promoted.

  Moreover, according to the structure of Claim 3, since all the rollers of the roller rail of one side among a pair of roller rails which comprise each rail unit can be comprised with a wrinkleless roller, as a result, a driving | running route side is made. Not only can the cost of the equipment to be configured be reduced, but on the loading platform side, all the rollers of the roller rail are one-sided rollers even when there are members extending from the pair of left and right rod-shaped sliding members to the left and right outside. Compared to the case, it is possible to significantly reduce the number of concave groove portions that allow passage of the flange portion of the roller with the flange, and thus it is possible to suppress the strength reduction of the loading platform due to the presence of the concave groove portion. .

  According to the fourth aspect of the present invention, the friction drive means (drive roller) corresponds to the abutting position of the friction drive bar of the load bed adjacent to the front and rear depending on the stop position of the slide bed, and the drive start is started. There is no fear that it will not be possible to execute it reliably. That is, even in such a situation, the drive roller of each friction drive means is in pressure contact with the protruding piece at the end of the friction drive bar, and the drive start can be surely executed. Accordingly, since the distance between the friction drive means on the travel path side and the storage pitch of the loading platform are substantially equal, not only can the control of each friction drive means be simplified, but also the installation position accuracy of the friction drive means in the travel direction, In other words, the installation position accuracy of each rail unit can be lowered, and the implementation becomes easy.

  Furthermore, according to the structure of Claim 5, compared with the case where the base of a friction drive means is mounted and mounted on the connection member of a rail unit, the floor surface of the drive roller of the said friction drive means The upper height can be reduced, and the sliding bed can have a low floor structure. Moreover, since the base of each friction drive means is attached to the connecting member of the rail unit and integrated with the rail unit, the installation work can be facilitated as described above.

  A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a sliding bed for supporting and conveying a work (automobile body) W, and the length of the work W to be supported. A pair of left and right long rod-like sliding members 2a, 2b parallel to the direction, a pair of front and rear short rod-like sliding members 3a, 3b parallel to the width direction of the workpiece W to be supported, and a length parallel to the length direction of the workpiece W to be supported One longitudinal feed friction drive bar 4 disposed at a central position between the rod-shaped sliding members 2a and 2b and longer than the entire length of the workpiece W to be supported, and a rod-shaped sliding member parallel to the width direction of the workpiece W to be supported and short And a single transverse feed friction drive bar 5 which is disposed at a central position between 3a and 3b and which is longer than the width of the work W to be supported.

  More specifically, the distance between the pair of left and right long rod-shaped sliding members 2a, 2b of the sliding bed 1 is slightly narrower than the width of the work W to be supported, and the length of the pair of left and right long rod-shaped sliding members 2a, 2b is supported. A little shorter than the total length of the workpiece W. Accordingly, the distance between the pair of front and rear short rod-shaped sliding members 3a and 3b is wider than the distance between the pair of left and right long rod-shaped sliding members 2a and 2b. The length of the pair of short rod-shaped sliding members 3a, 3b is equal to the distance between the pair of left and right long rod-shaped sliding members 2a, 2b. Further, the pair of left and right long rod-like sliding members 2a and 2b and the pair of front and rear short rod-like sliding members 3a and 3b are each composed of a single square pipe member that is seamless between both ends. Accordingly, the longitudinal feed friction drive bar 4 is divided at a position where it intersects with the pair of front and rear short rod-shaped sliding members 3a and 3b. It is comprised from the front-and-rear pair of short rod-shaped sliding members 3a and 3b and both-end rod-shaped members 6b and 6c extending outward in the front-rear direction. Further, since the transverse feed friction drive bar 5 is divided at a position where it intersects with the pair of left and right long rod-like sliding members 2a, 2b and the longitudinal feed friction drive bar 4, the longitudinal feed friction drive bar 4 and Two central rod-like members 7a, 7b between a pair of left and right long rod-like sliding members 2a, 2b; It is composed of

  Further, the front and rear outer corners of the T-shaped intersection of the pair of left and right long rod-shaped sliding members 2a and 2b and the pair of front and rear short rod-shaped sliding members 3a and 3b, and the front and rear from the pair of front and rear short rod-shaped sliding members 3a and 3b Between the longitudinal front and rear ends of the longitudinal feed friction drive bar 4 extending in both directions (positions near the ends of the rod members 6b and 6c at both ends), the diagonal connecting members 8a, 8b and 9a 9b is installed. All of the members 2a to 8b constituting the sliding bed 1 have a square pipe material having the same cross section, that is, a rectangular pipe material having a rectangular cross section whose height is twice as wide as shown in FIGS. The sliding bed 1 is configured by welding each member at a butting position. In addition, on the upper surface side of the sliding bed 1, at the abutting position of a pair of left and right long rod-shaped sliding members 2a and 2b, a pair of front and rear short rod-shaped sliding members 3a and 3b, and diagonal connecting members 8a and 8b and 9a and 9b. The pad 10 having a shape that covers these three members at the same time is welded and reinforced, but the pad 10 for reinforcement should be added to the abutting portion between other members as necessary. Can do.

  The sliding platform 1 having the above configuration is provided with a work support attachment 11 necessary on the upper surface side according to the type of the work W to be loaded. In addition, a floor plate that covers the entire surface or a part of the slide carrier 1 can be laid on the upper surface side of the sliding platform 1.

  One side of the pair of left and right long rod-like sliding members 2a and 2b and one side of the pair of front and rear short rod-like sliding members 3a and 3b in the sliding platform 1 having the above-described configuration will be described later. It is supported and guided by a roller rail with a hook on the traveling path side, and as shown in FIG. 1C and FIGS. It is configured to allow relative movement in the vertical direction. More specifically, as shown in parts A to C of FIG. 3C, a pair of front and rear short rod-shaped sliding members 3a and 3b crossing the long rod-shaped sliding member 2a, diagonal connecting members 8a and 9a, and lateral feed friction The drive bar 5 is formed with concave groove portions 12a to 12f that allow the flange portion of the roller with both flanges to pass along the long rod-shaped sliding member 2a at a location adjacent to the long rod-shaped sliding member 2a. As shown in A part, D part, and E part of FIG. 3C, a pair of left and right long rod-like sliding members 2a, 2b crossing the short rod-like sliding member 3a, diagonal connecting members 8a, 8b, and longitudinal feed friction drive The bar 4 is formed with concave groove portions 13a to 13d that allow the flange portion of the roller with both flanges to pass along the short rod-shaped sliding member 3a at a position adjacent to the short rod-shaped sliding member 3a.

  As shown in FIG. 3 to FIG. 6, each of the concave groove portions 12 a to 13 d is formed by cutting out about half the height of the square pipe material of the member in which the concave groove portions 12 a to 13 d are formed into a square shape from the lower surface side. The cover plate 14 is fixed by welding along the notch so as to close the opening formed by the notch. The concave groove portions 13a and 13b provided in the pair of left and right long rod-like sliding members 2a and 2b adjacent to both ends of the short rod-like sliding member 3a are essentially rollers that move along both side surfaces of the short rod-like sliding member 3a. Therefore, it is not necessary for the extended region of the short rod-shaped sliding member 3a, and can be provided separately on the left and right sides of the extended region of the short rod-shaped sliding member 3a. However, in the illustrated embodiment, in order to simplify the structure, one wide concave groove portion 13a, 13b is formed in a pair of left and right long rod-shaped sliding members 2a, 2b adjacent to both ends of the short rod-shaped sliding member 3a. is doing.

  In addition, projecting pieces 15a and 15b and 16a and 16b project from both ends of the longitudinal feed friction drive bar 4 and both ends of the lateral feed friction drive bar 5, respectively. As shown in FIGS. 7 to 9, these protruding pieces 15 a to 16 b are horizontally prismatic members whose width and height are about half of the width and height of the friction drive bars 4 and 5. One end in the length direction is brought to the end surface of each friction drive bar 4, 5, and is shifted to either the left or right side and is flush with the lower side surfaces 4 a, 5 a of the friction drive bar 4, 5. The cover plate 17 closes the openings of the end faces of the friction drive bars 4 and 5 remaining around the projecting pieces 15a to 16b. Thus, the protruding pieces 15a and 15b at both ends of the longitudinal feed friction drive bar 4 are shifted to the left and right in the opposite direction when viewed from the longitudinal feed friction drive bar 4, and the transverse feed friction drive bar The projecting pieces 16a and 16b at both ends of the belt 5 are shifted to the left and right in opposite directions as viewed from the transverse feed friction drive bar 5. Accordingly, when the two sliding platforms 1 are adjacent to each other so that the end portions of the longitudinal feeding friction drive bar 4 or the lateral feeding friction drive bar 5 face each other, the longitudinal feeding friction of the front sliding platform 1 is reached. The projecting piece 15b or 16b at the rear end of the drive bar 4 or the transverse feed friction drive bar 5 and the front end of the longitudinal feed friction drive bar 4 or the transverse feed friction drive bar 5 of the rear sliding platform 1 are shown. The protruding pieces 15a or 16a are arranged in parallel, and the ends of the protruding pieces 15a to 16b are the end portions of the longitudinal feeding friction driving bar 4 or the lateral feeding friction driving bar 5 of the mating sliding platform 1 (the cover plate 17). ).

  Next, the configuration on the traveling route side of the sliding platform 1 having the above configuration will be described. FIGS. 10 to 13 show the configuration of the longitudinal feeding traveling route 20 of the sliding platform 1, and this longitudinal feeding traveling route 20 includes rails. Units 21 are arranged in series at appropriate intervals in the traveling path direction. Each rail unit 21 has the same structure, and includes a roller rail 22 with a flange and a roller rail 23 without a flange, connecting members 24a and 24b for connecting and integrating positions near both ends of both roller rails 22 and 23, and one It is comprised from the friction drive means 25 attached to this connection member 24a.

  The roller rail 22 with a hook supports the rod-shaped sliding member 2a on the side where the concave groove portions 12a to 12f are provided in the pair of left and right long rod-shaped sliding members 2a and 2b of the sliding bed 1 so as to be movable in the length direction. The rod-like sliding member 2a fits between the pair of left and right flanges, and the rod-like sliding member 2a is supported at intervals at which the rod-like sliding member 2a can always be supported by at least two both-sided rollers 26, The rail members 27a and 27b using a pair of left and right angle members are pivotally supported by horizontal support shafts, and the total length of the rail members 27a and 27b is the protruding piece 15a of the longitudinal feed friction drive bar 4; It is a little shorter than the total length not including 15b. The pair of left and right rail members 27a and 27b are connected and integrated with each other by the connecting members 24a and 24b. The intermediate portions between both ends are also connected and integrated with each other by a plurality of intermediate connecting members 28 arranged at appropriate intervals. It has become. 29 is a cable rack arranged along the roller rail 22 with the flange, and is supported by the inward extending portions of the connecting members 24 a and 24 b and the intermediate connecting member 28.

  The wrinkleless roller rail 23 can move in the length direction of the pair of left and right long rod-like sliding members 2a and 2b of the sliding bed 1 on the side where the concave groove portions 12a to 12f are not arranged in parallel. Although only the wrinkle-free roller 30 is used in place of the both-wrinkled rollers 26 of the wrinkled roller rail 22, the wrinkled roller rail 22 has basically the same structure. Since the cable rack 29 is not provided side by side on the wrinkleless roller rail 23 side, the intermediate connecting member 28 is not extended inward.

  The friction drive means 25 includes a drive roller 31 that presses against the lower surface 4 a of the longitudinal feed friction drive bar 4 of the sliding bed 1 and a motor 32 that rotationally drives the drive roller 31. The details of the friction drive means 25 will be described with reference to FIGS. 17 to 20. One end of a vertical movement arm 35 is pivotally supported by a horizontal support shaft 36 on a bearing member 34 erected on a base 33. On the free end side of a vertically moving arm 35 that can swing up and down around the horizontal support shaft 36, a motor 32 having a drive roller 31 attached to an output shaft is located outside the base 33 and the base. It is attached via a motor support plate 37 so as to be adjacent to a substantially central position of the front side of 33. A spring receiving plate 38 extending to one side of the vertical moving arm 35 (the side opposite to the side where the motor 32 is provided) is fixed to the upper side of the free end portion of the vertical moving arm 35. A compression coil spring 39 is interposed vertically between the base plate 33 and the base 33, and the vertical movement arm 35 is urged upward by the compression reaction force of the compression coil spring 39 and supported by the vertical movement arm 35. The driving roller 31 is urged upward together with the motor 32.

  An L-shaped plate portion 40 is continuously provided downward from a lower side parallel to the front side of the base of the motor support plate 37, and a vertical plate of the L-shaped plate 40 is provided on the front side of the base 33. Is formed so that the lower horizontal plate portion 40a of the L-shaped plate portion 40 enters the lower side of the base 33. Thus, a stopper plate 42 with a stopper pin 41 attached to the tip is attached to the bottom surface side of the base 33 so as to face the lower end horizontal plate portion 40a of the L-shaped plate portion 40, as shown in FIG. As described above, the lower end horizontal plate portion 40a of the L-shaped plate portion 40 abuts on the stopper pin 41 so that the upward movement of the drive roller 31 biased upward by the compression coil spring 39 is limited. ing.

  Further, the friction drive means 25 is provided with a detection mechanism 43 that indirectly detects the sliding bed 1 through the vertical movement of the drive roller 31. The detection mechanism 43 includes a vertical movement arm 46 supported by a horizontal support shaft 45 on a bearing member 44 erected on the base 33 and a vertical movement extending from the position of the horizontal support shaft 45 to the motor 32 side. A driving pin 47 attached to the side surface of the motor support plate 37 so as to be fitted to the front end bifurcated portion of the arm 46, and a vertical extending from the position of the horizontal support shaft 45 to the opposite side of the motor 32. The cam plate 48 is attached to the free end of the moving arm 46, and the limit switch 49 is attached to the base 33 via the support plate 50 so that the detection lever 49a is positioned on the cam plate 48. ing.

  As shown in FIGS. 17 and 20, the front end portions of two mounting frames 51a and 51b parallel to each other in the front-rear direction are mounted on the rear side portion of the base 33, and the two mounting frames 51a. , 51b are respectively attached to both the left and right outer sides of the rear end portion and the front end portions of the left and right sides of the base 33 via bolts 53 that can be adjusted in height. Thus, as shown in FIGS. 10, 12, 17, and 20, one friction drive means 25 is provided for one rail unit 21, and the drive roller 31 is located at the center in the width direction of the front end of the rail unit 21. Installed to be located at. That is, the two mounting frames 51a projecting from the rear side of the base 33 so that the connecting member 24a on the front end side is positioned between the rear side of the base 33 and the pair of rear left and right installation panels 52. , 51b are placed on the connecting member 24a and bolted, and the respective mounting boards 52 around the base 33 are fixed on the floor surface with anchor bolts, and the friction drive means 25 is installed. As shown in FIGS. 12 and 13, the pair of left and right roller rails 22 and 23 in the rail unit 21 are also attached via bolts 54a and 54b whose height can be adjusted at appropriate intervals in the length direction. The installation board 55a provided with the installation boards 55a and 55b and attached to the rail member 27a located outside can be fixed on the floor surface with anchor bolts.

  The rail units 21 having the above-described configuration are installed in series along the longitudinal feed travel path 20 of the sliding platform 1, and the installation pitch of each rail unit 21 at that time is as shown in FIG. As shown by the phantom lines in FIG. 7 and FIG. 8, the sliding platform 1 adjacent to the front and rear storage pitches in one longitudinal feed travel path 20 is formed by projecting pieces 15a, One of the projecting pieces 15a and 15b having the same length as the pitch between the sliding bed 1 when they are in a state of being opposed to each other via 15b, in other words, the entire length of the longitudinal driving friction drive bar 4 Is installed so that the distance L2 between the drive rollers 31 of the friction drive means 25 is equal to the length L1 obtained by adding the above length. Therefore, a little space is formed between the roller rails 22 with the flanges of the rail units 21 adjacent to the front and back and between the roller rails 23 without the flanges as shown in the figure, but the ends of the roller rails 22 with the flanges located across the space. The distance between the wrinkled rollers 26 in the part and the distance between the wrinkled rollers 30 at the end of the wrinkled roller rail 23 are the distance between the wrinkled rollers 26 in the wrinkled roller rail 22 and the wrinkled roller rail 23 and wrinkles free. Since the distance between the rollers 30 is narrower than the distance between the rollers 30, the sliding bed 1 can be safely and smoothly transferred between the rail units 21 adjacent to each other.

  In the longitudinal feed travel path 20 configured as described above, the sliding platform 1 always has the lower roller 4a of the longitudinal feed friction drive bar 4 and the drive roller of the friction drive means 25 provided in any rail unit 21. It is in the position which overlaps on 31. Thus, the drive roller 31 located on the lower side of the longitudinal feeding friction drive bar 4 resists the biasing force of the compression coil spring 39 from the ascending limit position shown in FIG. 19 as shown in FIG. It is pushed down by the longitudinal feed friction drive bar 4 and comes into pressure contact with the lower side surface 4a of the longitudinal feed friction drive bar 4 with a predetermined frictional force, and at the same time, the drive roller 31 is pushed down to become horizontal. The drive pin 47 of the vertical movement arm 35 swinging downward around the support shaft 36 pushes down the front end portion of the vertical movement arm 46 of the detection mechanism 43 downward around the horizontal support shaft 45. The rear end cam plate 48 pushes the detection lever 49a of the limit switch 49 upward, and the limit switch 49 in the OFF state (sliding bed non-detection state) is in the ON state (sliding bed inspection). It will be switched to the state). The motor 32 is operated in conjunction with the limit switch 49 being switched to the sliding platform detection state, and the drive roller 31 is rotationally driven in the sliding platform propulsion direction, whereby the longitudinal feed friction drive bar 4 has its length. The sliding platform 1 is frictionally driven in the direction, and is guided to the roller rail 22 and the roller rail 23 of the rail unit 21 via the roller 26 and the roller 30 with the hooks, while the longitudinal feed travel path 20 The top is driven forward in the longitudinal direction of the friction drive bar 4 for vertical feed, that is, in the vertical direction.

  When the sliding platform 1 travels on the longitudinal feed travel path 20 in the longitudinal direction of the longitudinal feed friction drive bar 4 as described above, that is, in the longitudinal direction, the rod-shaped sliding member 2a on one side of the sliding platform 1 At this time, the flanges on both sides of the roller 26 with both sides sandwiching the rod-like sliding member 2a are slid on the rod-like sliding member 2a. A pair of front and rear short rod-shaped sliding members 3a, 3b, a transverse feed friction drive bar 5, and slant coupling members 8a, 9a in the groove portions 12a-12f formed adjacent to the rod-shaped sliding member 2a. Will pass. In other words, it is a roller with a hook that causes the sliding platform 1 traveling on the longitudinal feeding traveling path 20 to slide sideways in the lateral direction with respect to the length direction of the rod-shaped sliding member 2a (vertical feeding friction drive bar 4). This can be prevented by sandwiching the rod-shaped sliding member 2a by the flanges on both sides of the roller 26 with both flanges of the rail 22.

  Immediately before the protruding piece 15b projecting from the rear end of the longitudinal feed friction drive bar 4 of the sliding bed 1 forwardly driven as described above moves forward from the drive roller 31 of the friction drive means 25, As described above, the drive roller 31 of the friction drive means 25 of the next rail unit 21 adjacent to the direction side protrudes from the front end of the longitudinal feed friction drive bar 4 of the sliding platform 1 as described above. At the same time, the limit switch 49 of the detection mechanism 43 of the friction drive means 25 is switched from the OFF state (sliding bed non-detection state) to the ON state (sliding bed detection state) and rotated by the motor 32 in the sliding bed propulsion direction. Since it is driven, the sliding platform 1 is continuously driven by the driving roller 31 of the friction driving means 25 of the next rail unit 21 without stopping, and continuously. It will forward travel along the feed travel path 20. The drive roller 31 of the friction drive means 25 which is relatively rearwardly separated from the protruding piece 15b at the rear end of the longitudinal feed friction drive bar 4 of the sliding bed 1 is raised to the ascent end position by the urging force of the compression coil spring 39. Accordingly, the drive pin 47 of the vertical movement arm 35 swinging upward around the horizontal support shaft 36 is returned, and the front end of the vertical movement arm 46 of the detection mechanism 43 is turned upward around the horizontal support shaft 45. Since the push-up is performed, the cam plate 48 at the rear end of the vertical movement arm 46 descends, the detection lever 49a of the limit switch 49 returns to swing downward, and the limit switch 49 is turned off from the ON state (sliding platform detection state). Return to (sliding platform non-detection state). The drive roller 31 can be stopped by turning off the power to the motor 32 by the operation of the limit switch 49.

  The friction drive means 25 of each rail unit 21 can be controlled by various conventionally known methods according to the travel conditions required for each sliding platform 1 on the longitudinal feed travel path 20. As an example, when the driving roller 31 is pushed down by the longitudinal driving friction drive bar 4 of the sliding platform 1 and the detection mechanism 43 (limit switch 49) is in the ON state (sliding platform detection state), it is one lower level. Only when the detection mechanism 43 (limit switch 49) of the friction drive means 25 of the side rail unit 21 is in the OFF state (sliding bed non-detection state), there is a control method for operating the motor 32 to drive the drive roller 31 to rotate. Are known.

  FIGS. 14-16 shows the structure of the lateral feed travel path 60 of the sliding carrier 1, and this lateral feed travel path 60 is configured by installing rail units 61 in series at appropriate intervals in the travel path direction. ing. Each rail unit 61 has the same structure, and includes a roller rail 62 with a flange and a roller rail 63 without a flange, a connecting member 64 that connects and integrates the positions near the front end portions of both roller rails 62 and 63, and the connecting member. The friction drive means 65 is attached to 64. The roller rail 62 with a collar and the roller rail 63 without a collar of the rail unit 61 are a roller rail 22 with a collar and a collar without a collar of the rail unit 21 constituting the longitudinal feed traveling path 20 described above with reference to FIGS. The roller rail 23 has the same structure with only a difference in length and interval, and the friction drive means 65 has the same structure as the friction drive means 25 provided in the rail unit 21, and therefore has the same reference numerals. The description is omitted. The position of the cable rack 66 attached to the rail unit 61 is opposite to that of the cable rack 29 of the rail unit 21, but it may be arranged on the same side as the rail unit 21. Depending on the case, the rail unit 20 or 60 can be omitted.

  Thus, the flanged roller rail 62 of the rail unit 61 includes the rod-shaped sliding member 3a on the side where the recessed groove portions 13a to 13d are provided side by side among the pair of short rod-shaped sliding members 3a and 3b in the front and rear of the sliding bed 1. The wrinkle-free roller rail 63 supports the other rod-shaped sliding member 3b. The wrinkle-free roller 26 and wrinkle-free roller of these roller rails 62 and 63 are supported. 30 is a horizontal support shaft between a pair of left and right rail members 27a and 27b at an interval at which the rod-shaped sliding members 3a and 3b can always be supported by at least two roller 26 and the roller 30 without ribs. The rail members 27a and 27b are supported so that the total length of the rail members 27a and 27b is slightly shorter than the total length not including the projecting pieces 16a and 16b of the transverse feed friction drive bar 5. A. The drive roller 31 of the friction drive means 65 is in pressure contact with the lower side surface 5 a of the lateral feed friction drive bar 5 of the sliding platform 1.

  The rail units 61 having the above-described configuration are installed in series along the lateral feed travel path 60 of the sliding platform 1, and the installation pitch of each rail unit 61 at that time is as shown in FIG. As shown by the phantom lines in FIG. 7 and FIG. 8, the sliding platform 1 adjacent to the front and rear storage pitches in one lateral feed travel path 60 is arranged so that the lateral feed friction drive bars 5 are projected pieces 16a, One of the projecting pieces 16a and 16b having the same length as the pitch between the sliding platform 1 when they are in a state of being opposed to each other via 16b, in other words, the entire length of the frictional drive bar 5 for lateral feed. Is installed so that the length L3 obtained by adding the above length and the distance L4 between the drive rollers 31 of the friction drive means 65 are equal. Therefore, a space is formed between the roller rails 62 with the flanges of the rail units 61 adjacent to the front and the rear and between the roller rails 63 without the flanges as shown in the figure, but the ends of the roller rails 62 with the flanges located across the space. The distance between the wrinkled rollers 26 in the part and the distance between the wrinkled rollers 30 at the end of the wrinkled roller rail 63 are the distance between the wrinkled rollers 26 in the wrinkled roller rail 62 and the wrinkled roller rail 63 and wrinkles free. Since the distance between the rollers 30 is narrower than the distance between the rollers 30, the sliding platform 1 can be transferred safely and smoothly between the rail units 61 adjacent to each other in the front-rear direction.

  In the transverse feed travel path 60 configured as described above, the sliding platform 1 always has a driving roller of the friction drive means 65 provided on any rail unit 61 on the lower side surface 5a of the transverse feed friction drive bar 5. It is in the position which overlaps on 31. Thus, the drive roller 31 of the friction drive means 65 provided in each rail unit 61 is controlled under the same conditions as the drive roller 31 of the friction drive means 25 provided in each rail unit 21 in the longitudinal feed travel path 20 described above. For example, the sliding bed 1 is laterally fed on the lateral feed traveling path 60 while being guided by the roller rail 62 and the roller rail 63 with the hooks of the rail unit 61 through the roller 26 with the hooks and the roller 30 with the hooks. The friction drive bar 5 is driven forward in the length direction, that is, in the lateral direction.

  When the sliding platform 1 travels on the lateral feed travel path 60 in the length direction of the lateral feed friction drive bar 5 as described above, that is, in the lateral direction, the rod-shaped sliding member 3a on one side of the sliding platform 1 The roller 26 of the rail unit 61 slides on the roller 26 with the hooks. At this time, the hooks on both sides of the roller 26 with the rods sandwiching the rod-shaped sliding member 3a are rod-shaped sliding members 3a. A pair of left and right long rod-shaped sliding members 2a, 2b and a longitudinal feed friction drive bar 4 that intersect with the rod-shaped sliding member 3a pass through the recessed groove portions 13a to 13d formed adjacent to the rod-shaped sliding member 3a. In other words, the sliding load carrier 1 traveling on the lateral feed traveling path 60 slides laterally in the lateral direction with respect to the length direction of the rod-shaped sliding member 3a (lateral feed friction drive bar 5). This can be prevented by sandwiching the rod-shaped sliding member 3a with the flanges on both sides of the both-side roller 26 of the rail 62.

  Similar to the friction drive means 25 of each rail unit 21 on the longitudinal feed travel path 20, the friction drive means 65 of each rail unit 61 is conventionally known in various ways depending on the travel conditions required for each sliding platform 1. Can be controlled.

  As described above, the sliding platform 1 shown in FIGS. 1 to 9 can travel (vertically feed) in the longitudinal direction parallel to the longitudinal direction of the sliding platform 1 in the longitudinal feed travel path 20. In the lateral feed travel route 60, the travel (transverse feed) can be performed in the lateral direction parallel to the lateral width direction of the sliding platform 1. Of course, the transport path for transporting the workpiece W using the sliding platform 1 is, for example, two vertical feed travel paths 20 (or lateral feed travel paths 60) that are arranged in parallel and whose travel directions are opposite to each other, and By various conventionally known traversers for transferring the sliding platform 1 between the ends of both the longitudinal feeding traveling paths 20 (or the lateral feeding traveling paths 60), the sliding platform 1 can be endlessly circulated. In this case, the lateral feed travel route 60 (or the vertical feed travel route 20) can be used as the transport route of the sliding bed 1 by the traverser.

  In the above embodiment, one sliding carrier 1 can be driven to travel in both the longitudinal feed traveling path 20 configured by the rail unit 21 and the lateral feed traveling path 60 configured by the rail unit 61. Although configured as described above, it may be configured to be friction driven according to the present invention only in one of the traveling routes.

Fig. A is a plan view of a sliding bed, B is a side view, and C is a bottom view. It is a front view of a sliding bed. Fig. A is an enlarged view of a portion C (or portion E) in Fig. 1, and Fig. B is a cross-sectional view taken along line AA in Fig. A. It is an enlarged view of the A section of FIG. It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. It is a front-end | tip part enlarged side view of the friction drive bar. FIG. 8 is a plan view of FIG. 7. FIG. 8 is a front view of FIG. 7. It is a top view which shows a part of vertical feed traveling route. It is a side view of FIG. It is a principal part enlarged view of FIG. It is a front view of FIG. It is a top view which shows a part of transverse feed driving | running route. It is a front view of one rail unit which comprises a transverse feed travel path. FIG. 15 is an enlarged side view of FIG. 14. It is a top view which shows a friction drive means. It is the longitudinal cross-sectional rear view. It is a partially cutaway side view showing the friction drive means when the drive roller is in the ascending limit position. It is a vertical side view which shows the friction drive means in the state in which the drive roller was pushed down with the friction drive bar of a sliding bed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding platform 2a, 2b A pair of left and right long rod-shaped sliding members 3a, 3b A pair of front and rear short rod-shaped sliding members 4 Vertical feed friction drive bar 5 Horizontal feed friction drive bar 4a, 5a Lower side surface 8a of friction drive bar ˜9b Diagonal connecting member 10 Contact plate 11 Work support attachments 12a to 12f, 13a to 13d Concave groove portions 15a to 16b Protruding piece 20 Vertical feed travel path 21 Rail units 22 and 62 of longitudinal feed travel path Roller rails 23 and 63 with hooks Wrinkle-free roller rails 25, 65 Friction drive means 26 Rollers 27a, 27b with both ribs Rail member 30 Wrinkle-free roller 31 Drive roller 32 Motor 35, 46 Vertical movement arm 38 Spring receiving plate 39 Compression coil spring 42 Stopper plate 43 Detection mechanism 47 Drive pin 49 Limit switch 60 Cross feed travel 61 traversing the travel path of the rail unit

Claims (5)

The sliding platform that supports the workpiece is a pair of left and right rod-shaped sliding members that are parallel to the traveling direction of the loading platform, and a friction drive that is disposed between the pair of left and right rod-shaped sliding members that is parallel to the traveling direction of the loading platform and is longer than the total length of the workpiece to be supported. And a pair of roller rails for supporting the sliding platform only in the traveling direction of the loading platform via a pair of left and right rod-shaped sliding members, and a friction driving bar. In a transport device using a sliding bed provided with a friction driving means having a driving roller pressed against a side surface, only one sliding bed including each of the friction driving bars is provided on a traveling path of the sliding bed. Rail units that are installed independently of each other without being connected to each other in the direction of the travel path are arranged, and each rail unit has a pair of left and right rod-like slides. A pair of left and right roller rails that movably support each of the members, a connecting member that connects and integrates both roller rails to each other, and one end portion in the length direction of the rail unit that is attached to the connecting member Each of the rail units is a storage of a sliding bed when the friction drive bars are in contact with each other with an interval between the drive rollers of the friction drive means included in each rail unit. A transport device using a sliding bed that is laid to be equal to the pitch.
  The said friction drive bar | burr is a conveying apparatus using the sliding bed of Claim 1 arrange | positioned in the center position between the said left-right paired rod-shaped sliding member.   The pair of left and right roller rails constituting the rail unit includes a roller rail with a hook that is supported by a roller with a pair of hooks provided with a pair of left and right flanges at an appropriate interval, and a roller without a wrinkle at an appropriate interval. It consists of a combination with a wrinkle-free roller rail that is supported, and of the pair of left and right bar-shaped sliding members, the connecting portion between the bar-shaped sliding member on the side supported by the roller rail with the hook and other members is equipped with both hooks The conveying device using a sliding bed according to claim 1 or 2, wherein a concave groove portion that allows passage of a pair of left and right flange portions of the roller is formed.   At both ends of the friction drive bar, when the sliding bed adjacent to the front and rear in the running direction approach each other, the friction drive bar is parallel to the left and right sides in the running direction and is flush with the lower side of the friction driving bar. Any one of claims 1 to 3, wherein projecting pieces are provided so that the friction drive bars of sliding bed adjacent to each other in the front and rear direction in the traveling direction face each other through the projecting pieces arranged in parallel. A transfer device using a sliding bed according to item 1.   The friction drive means is configured such that a base supporting a motor with a drive roller is not placed on the connection member of the rail unit but is arranged along the connection member, and the base includes an upper part of the connection member. The mounting frame mounted on and fixed to the base, and a mounting board mounted on the base via a height adjusting bolt is provided. apparatus.

Images