JP2013244535A - Skid table for finishing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skid table for a finishing machine, capable of easily replacing a skid plate in a short period of time and reducing waste of materials of the skid plate.SOLUTION: In a skid table 1 for a finishing machine for supporting a lower surface of a workpiece W with a tip of a supporting projected part 21 of an upper end edge of a skid plate 11, the skid plate 11 located in a position supporting the workpiece W is arranged as the skid plate of the uppermost stage, and at its lower side, the skid plate 11 to be used next is overlapped and arranged in a vertically standing posture and in such a state that the upper end edge of a lower skid plate 11 is abutted to the lower end edge of an upper skid plate 11, and a guide member 30 for guiding the skid plate 11 freely slidably in the vertical direction is provided. A hydraulic cylinder 50 is provided to push up skid plates 11 in a stacked state from below so as to push out the skid plate 11 of the uppermost stage which has so far been in the position supporting the workpiece, newly raise the skid plate 11 located at the lower side of the skid plate 11 to the position supporting the workpiece W, and then hold it to the height position.

Description

  The present invention relates to a skid table for a processing machine, which is used when a workpiece is cut by, for example, laser cutting, plasma cutting, gas cutting, or the like, and serves as a workpiece cradle.

  For example, when a flat workpiece is laser-cut by a laser processing machine, first, the workpiece to be processed is placed on a skid table.

  In this type of skid table, support convex portions whose tips are pointed like a triangle or a sword mountain are scattered in the same plane, and the lower surface of the workpiece is supported by the tips of the support convex portions. The reason for making the point of contact with the workpiece point-contacted with the workpiece is to prevent the workpiece and skid from welding during laser cutting.

  As a conventional example of a skid table, for example, in Patent Document 1, by arranging a plurality of skid plates with a predetermined plate thickness having a plurality of support protrusions with sharp tips at the upper edge in a vertically standing posture, What comprises the table which supports the lower surface of a workpiece | work at the front-end | tip of the said some support convex part located in the same plane is disclosed.

  In this case, the skid plate can be freely attached to and detached from the columnar member, and can be exchanged as necessary. The reason for exchanging is that if the tip of the support convex portion is consumed or damaged by the laser, the support of the workpiece becomes unstable, and adversely affects cutting or the like.

  According to the technique of this patent document 1, the replacement burden can be greatly reduced by replacing only the worn or damaged skid plate as compared with replacing the entire skid table.

Japanese Utility Model Publication No. 3-101388

  By the way, even when the skid plate is detachably attached to the columnar member as in the technique described in Patent Document 1, it is necessary to manually replace the skid plate every time. There is a problem that it takes. In addition, the skid plate is formed in a shape having an extra dimensional portion that does not have a role as a skid due to the height adjustment at the time of replacement.

  In consideration of the above circumstances, the present invention can easily replace a skid plate from an old one to a new one in a short time without much labor, and can reduce waste of the material of the skid plate. An object of the present invention is to provide a skid table.

  In order to solve the above-mentioned problem, the invention of claim 1 is characterized in that a plurality of skid plates having a plurality of support protrusions with sharp tips at the upper end edge are arranged side by side in a vertically standing posture. In the skid table of the processing machine configured to support the lower surface of the workpiece at the tip of the supporting convex portion, the skid plate at the position supporting the lower surface of the workpiece is the uppermost skid plate, Next, at least one stage of the skid plate to be used next is arranged in a vertically standing posture with the upper end edge of the lower skid plate in contact with the lower end edge of the upper skid plate. A guide member is provided that guides the skid plate from the lowest to the lowest level in a horizontal direction so as to hold the overlapping state of the skid plate and to be slidable vertically. By pushing up the skid plate from below, pushing up the uppermost skid plate that has been in a position to support the workpiece and raising the skid plate underneath to a position to newly support the workpiece, and Positioning means for holding the skid plate raised to the position for newly supporting the workpiece at its height position is provided.

  Invention of Claim 2 is a skid table of the processing machine of Claim 1, Comprising: The recessed part into which the said support convex part formed in the lower end edge of the said skid board at the upper end edge of the lower skid board enters It is provided.

  The invention of claim 3 is the skid table of the processing machine according to claim 1 or 2, wherein a cylinder mechanism that pushes up a lowermost skid plate is provided as the push-up means, and this cylinder mechanism is the positioning mechanism. It also serves as a means.

  Invention of Claim 4 is a skid table of the processing machine of any one of Claims 1-3, Comprising: The said skid from the uppermost stage to the lowest stage hold | maintained by the said guide member and this guide member One skid unit is configured by combination with the board, and a plurality of these skid units are arranged, and all the skid units are divided into a plurality of groups, and each skid unit in each group is divided into a plurality of groups. One of the pushing-up means and the positioning means for raising the skid plate together are provided.

  Invention of Claim 5 is a skid table of the processing machine of any one of Claims 1-3, Comprising: The said skid from the uppermost stage to the lowest stage hold | maintained by the said guide member and this guide member One skid unit is constituted by a combination with the plate, a plurality of these skid units are arranged, and one of the pushing-up means and the positioning means for raising the skid plates of all the skid units together are provided. It is characterized by that.

  According to the invention of claim 1, since the skid plate to be used next is prepared in advance under the skid plate at the position for supporting the work, the uppermost skid at the position for supporting the work is prepared. When a plate is damaged, the uppermost skid plate is pushed up and removed, and the next skid plate is newly moved to a position to support the workpiece, so that the new skid plate can be replaced with an old one without much labor. It can be easily replaced in a short time. Moreover, since only the damaged uppermost skid plate needs to be replaced, waste of the material of the skid plate can be reduced. Further, since the material cost can be reduced and the replacement time can be reduced, the replacement frequency of the skid plate can be increased, and the influence of the skid plate on the product can be reduced.

  According to the second aspect of the present invention, when the support convex portion formed on the upper edge of the lower skid plate is directly abutted against the lower edge of the upper skid plate, the height of the support convex portion is increased in the vertical direction. The total height of the stacked skid plates increases, but the height of the support protrusions can be increased by accommodating the support protrusions on the upper edge of the lower skid plate in the recesses formed on the lower edge of the upper skid plate. Regardless of the thickness, the total height of the skid plates stacked in the vertical direction can be reduced. Therefore, if the space is in the same height direction, the number of stacked skid plates can be increased, and if the number of stacked skid plates is the same, the space in the height direction can be reduced. Moreover, it is also possible to regulate the horizontal relative movement of the upper skid plate and the lower skid plate by fitting the support convex portion into the concave portion. In addition, when forming the recess at the bottom edge of the skid plate, the top and bottom support projections are damaged by forming a projection similar to the support projection at the top edge. Thus, the convex portion at the lower end edge can be reused as the support convex portion.

  According to the invention of claim 3, since the cylinder mechanism (for example, a hydraulic cylinder or an electric cylinder) that pushes up the skid plate also serves as the positioning means, it is not necessary to provide a positioning means separately.

  According to invention of Claim 4, a skid board can be replaced | exchanged for every group. Therefore, by keeping the area where damage is likely to occur and the area where damage is unlikely to occur in different groups, it is possible to replace only the skid plate in the area where damage is likely to occur, thereby reducing waste of replacement of the skid plate. it can.

  According to the fifth aspect of the present invention, the skid plates of all the skid units can be replaced by one push-up means and positioning means, so that the equipment cost of the push-up means and positioning means can be reduced.

It is a schematic perspective view which shows the whole structure of the skid table of embodiment of this invention. It is a disassembled perspective view of the skid unit which comprises the skid table. In the same skid table, it is an exploded perspective view showing the relationship between a plurality of skid units constituting one group and one hydraulic cylinder as a push-up means. It is a front view which shows the state which is supporting the workpiece | work in the skid table. In the same skid table, it is a front view showing a state when the skid plate is replaced because the support convex portion of the uppermost skid plate of a certain group is consumed and damaged. It is a disassembled perspective view which shows the structure of one skid unit of the skid table of other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is a schematic perspective view showing the overall configuration of the skid table of the embodiment, FIG. 2 is an exploded perspective view of a skid unit constituting the skid table, FIG. 3 is a plurality of skid units constituting one group in the skid table, FIG. 4 is a front view showing a state in which a workpiece is supported on the skid table, and FIG. 5 is a topmost skid of a group in the skid table. It is a front view which shows the state at the time of replacing | exchanging a skid board because the support convex part of the board was consumed and damaged.

  As shown in FIG. 1, a skid table 1 of a laser processing machine (processing machine) is composed of six sets of skid units 10 arranged in parallel to each other, a drive assisting member 40, and a hydraulic cylinder 50 which is a push-up means. Has been. Six sets of skid units 10 are divided into two groups of three adjacent groups, and one drive assisting member 40 and one hydraulic cylinder (cylinder mechanism) 50 are provided for each group.

  The number of skid units 10 constituting the skid table 1 and the number of groupings are not limited. Further, the number of skid units 10 in the group is not limited, and one skid unit 10 may constitute a group.

  As shown in FIG. 2, each skid unit 10 includes three upper skid plates 11, a lowermost base plate 12, and a pair of left and right skids that support the skid plate 11 and the base plate 12 slidably in the vertical direction. Guide members 30 and 30. The number of skid plates 11 is three in this embodiment, but is not limited as long as it is two or more.

  The guide member 30 is provided in the shape of a gate column and is opposed to the left and right, and has concave guide grooves 31 extending in the vertical direction on inner surfaces facing each other. These guide members 30 are supported by a frame (not shown), and the main body of the hydraulic cylinder 50 is also supported by the frame.

  Each skid plate 11 is of the same shape made of a metal plate having a predetermined thickness, and has a plurality of chevron-shaped support convex portions 21 with sharp tips at the upper end edge, and a triangular valley-shaped concave portion 22 at the lower end edge. Have. The concave portion 22 may be of any shape that can accommodate the chevron-shaped support convex portion 21 at the upper edge of the lower skid plate 11. In this embodiment, however, the support convex portion 21 of the lower skid plate 11 fits snugly. It is formed in a full shape.

  As shown in FIG. 4, the skid plate 11 is arranged side by side in a vertically upright posture to form a table that supports the lower surface of the workpiece W at the tip of the support convex portion 21 located in the same plane. To do. The base plate 12 can also function as a skid plate, and has a support projection 21 at the upper edge. However, a recess is not formed on the lower edge of the base plate 12, and the lower edge is cut linearly.

  Here, the skid plate 11 in a position that supports the lower surface of the workpiece W is used as the uppermost skid plate 11, and the skid plate 11 to be used next is sequentially and vertically arranged on the lower side of the upper side. The skid plate 11 is disposed so as to overlap the lower end edge of the skid plate 11 with the upper end edge of the lower skid plate 11 in contact therewith. Moreover, the support convex portion 21 at the upper edge of the lower skid plate 11 is fitted into the concave portion 22 at the lower edge of the upper skid plate 11.

  Further, the base plate 12 is in a state in which the supporting convex portion 21 is accommodated in the concave portion 22 at the lower edge of the upper skid plate 11 on the lower side of the skid plate 11 in the third step from the top, similarly to the other skid plates 11. Are arranged in layers.

  The skid plate 11 and the base plate 12 are held in an overlapping state by being regulated in the horizontal direction by fitting the left and right side edges 25 into the guide grooves 31 of the left and right guide members 30 as indicated by arrows B in FIG. However, it is slidably supported in the vertical direction.

  Then, the lower end edge of the lowermost base plate 12 is inserted into the groove 41 formed on the upper surface of the bar-shaped drive assisting member 40 as shown in FIG. 1 and FIG. ing. The drive assisting member 40 is for transmitting the force of one hydraulic cylinder 50 in synchronization with the base plates 12 of the three skid units 10. The tip 52 of the rod 51 is connected with a screw. The concave groove 41 on the upper surface of the drive assisting member 40 is provided in accordance with the arrangement interval of the skid units 10.

  Next, the operation will be described.

  In the initial state, as shown in FIG. 4, the upper end of the support convex portion 21 of the uppermost skid plate 11 of the three steps of the skid plate 11 is held at the same height, and supports the lower surface of the workpiece W. The table to be configured. When processing such as laser cutting is performed on the workpiece W in this state, the support convex portion 21 of the uppermost skid plate 11 is consumed and damaged, and the skid plate 11 needs to be replaced. As shown in FIG. 5, the rod 51 of the hydraulic cylinder 50 is extended by the height of one step of the skid plate 11, and the base plate 12 and the skid plate 11 are pushed up.

  As a result, the uppermost skid plate 11 that has been positioned so far as supporting the workpiece W is pushed out of the guide member 30 and dropped onto a shooter (not shown), and the lower skid plate 11 is replaced with a new one. Are pushed up to a position where the workpiece W is supported. The hydraulic cylinder 50 holds the skid plate 11 at the pushed-up height position by exerting a function as positioning means. By doing so, a table that supports the workpiece W can be configured by the tip of the support convex portion 21 of the skid plate 11 that is newly pushed up.

  As described above, according to the skid table 1 of the laser beam machine according to the present embodiment, the skid plate 11 to be used next is prepared in advance on the lower side of the skid plate 11 at the position where the workpiece W is supported. Therefore, when the uppermost skid plate 11 in a position where the workpiece W is supported is damaged, the uppermost skid plate 11 is pushed up and removed, and the next skid plate 11 is newly supported by the workpiece W. The skid plate 11 can be easily replaced in a short time from an old one to a new one without much labor.

  Further, since only the damaged uppermost skid plate 11 needs to be replaced, waste of the material of the skid plate 11 can be reduced. Further, since the material cost can be reduced and the replacement time can be reduced, the replacement frequency of the skid plate 11 can be increased, and the influence of the skid plate 11 on the product can be reduced.

  Further, when the support convex portion 21 formed on the upper edge of the lower skid plate 11 is abutted against the lower edge of the upper skid plate 11 as it is, the skid overlapped in the vertical direction by the height of the support convex portion 21. Although the total height of the plate 11 is increased, the support convex portion 21 is accommodated by accommodating the support convex portion 21 at the upper end edge of the lower skid plate 11 in the concave portion 22 formed at the lower end edge of the upper skid plate 11. Regardless of the height of 21, the total height of the skid plates 11 stacked in the vertical direction can be reduced. Therefore, if the space is in the same height direction, the number of stacked skid plates 11 can be increased, and if the number of stacked skid plates 11 is the same, the space in the height direction can be reduced.

  Further, by fitting the support convex portion 21 to the concave portion 22, it is possible to restrict the relative movement in the horizontal direction between the upper skid plate 11 and the lower skid plate 11. Further, when forming the concave portion 22 at the lower edge of the skid plate 11, by forming a convex portion similar to the support convex portion 21 at the upper edge, the support convex portion 21 at the upper edge is damaged. It is also possible to replace the upper and lower sides and reuse the convex part at the lower edge as the support convex part.

  Further, according to the present embodiment, the hydraulic cylinder 50 that pushes up the skid plate 11 and the base plate 12 also functions as a positioning means that holds the skid plate 11 and the base plate 12 at their height positions when they are lifted. Thus, there is no need to provide a separate positioning means, but a separate positioning means may be provided. Then, it is possible to use a pneumatic cylinder. In addition, an electric cylinder can be used instead of the hydraulic cylinder 50.

  Moreover, according to this embodiment, since the hydraulic cylinder 50 is provided for each group, the skid plate 11 can be replaced for each group. Therefore, by setting the area where damage is likely to occur and the area where damage is unlikely to occur in different groups, it is possible to replace only the skid plate 11 in the area where damage is likely to occur, thereby reducing wasteful replacement of the skid plate 11. be able to.

  The skid plate 11 and the base plate 12 of all the skid units 10 may be configured to be pushed up by one hydraulic cylinder 50. In such a case, the equipment cost can be reduced by reducing the number of hydraulic cylinders 50 that are the push-up means and positioning means.

  Further, the base plate 12 can be used as a skid plate. In that case, it is sufficient if there is at least two skid plates including the base plate.

  Further, unlike the other embodiment shown in FIG. 6, the concave portion 22 (see FIG. 5) is not provided at the lower edge of the skid plate 11, and the support convex portion 21 at the upper edge of the lower skid plate 11 and the base plate 12. May be directly abutted against the lower end edge of the upper skid plate 11 cut in a straight line.

  In each of the above embodiments, the skid table 1 of the laser processing machine has been described. However, the processing machine is not limited to the laser processing machine, and may be other processing machines such as a plasma processing machine and a gas processing machine. .

DESCRIPTION OF SYMBOLS 1 Skid table 10 Skid unit 11 Skid board 12 Base board (skid board)
21 support convex part 22 concave part 30 guide member 40 drive auxiliary member (positioning means)
50 Hydraulic cylinder (cylinder mechanism, push-up means, positioning means)

Claims (5)

Supporting the lower surface of the workpiece with the tip of the support projection located in the same plane by arranging a plurality of skid plates with a plurality of support projections with sharp tips at the top edge in a vertical position In the skid table of the processing machine that constitutes the table to be
The skid plate at the position that supports the lower surface of the workpiece is the uppermost skid plate, and the lower side of the skid plate to be used next is vertically positioned on the lower side of the skid plate. Arrange at least one stage with the upper edge of the skid plate in contact with each other,
A guide member is provided which guides the skid plate from the uppermost stage to the lowermost stage in a horizontal direction to hold the overlapping state of the skid boards and to be slidable in the vertical direction.
In addition, by pushing up the above-described skid plate from below, the uppermost skid plate that has been in a position for supporting the workpiece is pushed out to a position for newly supporting the workpiece on the lower side of the skid plate. A skid table for a processing machine, comprising a push-up means for raising and a positioning means for holding the skid plate raised to a position where the workpiece is newly supported at a height position thereof. A skid table for a processing machine according to claim 1,
A skid table for a processing machine, wherein a concave portion into which the support convex portion is formed at the upper end edge of the lower skid plate is provided at the lower end edge of the skid plate. A skid table for a processing machine according to claim 1 or 2,
A cylinder mechanism for pushing up a lowermost skid plate is provided as the push-up means, and the cylinder mechanism also serves as the positioning means. It is a skid table of the processing machine of any one of Claims 1-3,
A combination of the guide member and the skid plate from the uppermost stage to the lowermost stage held by the guide member constitutes one skid unit, and a plurality of these skid units are arranged. The processing machine is equipped with one push-up means and positioning means for raising the skid plate of each skid unit in each group together for each group. Skid table. It is a skid table of the processing machine of any one of Claims 1-3,
A combination of the guide member and the skid plate from the uppermost stage to the lowermost stage held by the guide member constitutes one skid unit, and a plurality of these skid units are arranged. A skid table for a processing machine, which is equipped with one pushing-up means and positioning means for raising the plates together.

Images