Work stocker jigs and grinding equipment

Abstract

To provide a jig for a workpiece stocker which enables a plurality of workpiece to be processed by a grinding device to be efficiently arranged in a workpiece stocker, and a grinding device.SOLUTION: A jig 74 for a pallet for collectively arranging a plurality of workpieces W in a pallet 36 having a plurality of storage hole parts 70 for storing the plurality of workpieces W includes: a jig body 76; groove parts 78 which are formed in the jig body 76 so as to arrange the plurality of workpieces W, and have ends formed at positions facing the storage hole parts 70, so that the plurality of workpieces W can be individually dropped into the storage hole parts 70, when the jig body 76 arranged with the plurality of workpieces W is mounted on the pallet 36; and a stopper member 88 which is detachably mounted on the jig body 76, and can engage the workpiece W when the jig body 76 arranged with the workpiece W is mounted on the pallet 36.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a workpiece stocker jig and a grinding device. [Background technology]

[0002] Patent Document 1 discloses a grinding machine having an indexable spindle head with a plurality of spindles that can be detached from a workpiece and can be rotated to position the grinding position of the workpiece. The spindle head is provided with a processing station for grinding an unmachined workpiece with a grinding wheel and an exchange station for replacing a processed workpiece with an unmachined workpiece, and an arbitrary number of spindles among the plurality of spindles are arranged at predetermined positions in each station for swivel positioning. Therefore, while the unmachined workpiece in the processing station is being ground by the grinding wheel, the processed workpiece in the exchange station can be replaced with the unmachined workpiece. Furthermore, after the grinding process, the spindle head can be rotated to perform the next grinding process and the workpiece exchange at the same time. This can shorten the grinding process time.

[0003] Since such grinding processes continuously process a large number of workpieces, a stocker that stores the workpieces needs to store a large number of workpieces in advance. However, it is not easy to automate different workpieces according to the processing purpose by a machine, and a user manually places multiple workpieces one by one in the stocker. This results in an increase in labor hours and an increase in costs. In addition, a stocker that stores such multiple workpieces needs to be formed compactly, and for example, holes in the stocker for inserting the workpieces are formed closely together, and the gap between the inserted workpiece and the hole is also formed as small as possible. For this reason, it is also time-consuming to place the workpieces in the stocker, that is, to align them when inserting them, which also leads to an increase in labor hours. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 10-156677 Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above circumstances, an object of the present invention is to provide a work stocker jig and a grinding device that can efficiently arrange multiple workpieces to be machined by a grinding device in a work stocker. [Means for solving the problem]

[0006] According to one aspect of the present invention, there is provided a jig for a work stocker for arranging multiple components together in a work stocker having a plurality of accommodating holes for accommodating the multiple components, the jig comprising: a jig body; a groove portion formed in the jig body for arranging the multiple workpieces, the groove portion having an end portion formed in a position facing the accommodating hole portion so that when the jig body with the multiple workpieces arranged on it is attached to the work stocker, the multiple workpieces can be dropped individually into the accommodating hole portion; and a stopper member that is detachably attached to the jig body and can engage the workpiece when the jig body with the work arranged on it is attached to the work stocker.

[0007] According to another aspect of the present invention, the jig body may be provided with alignment portions formed on both ends thereof, which come into contact with the sides of the workpiece stocker when the jig body is attached to the workpiece stocker.

[0008] Furthermore, according to one aspect of the present invention, the jig body may be configured to be connectable to another jig body.

[0009] According to another aspect of the present invention, the stopper member may be formed in a flat rod shape that can be inserted into and removed from an insertion / removal portion that is formed in the jig body so as to be perpendicular to the groove portion.

[0010] Furthermore, a grinding machine including the workpiece stocker jig according to one aspect of the present invention and a workpiece stocker may be provided. Effect of the Invention

[0011] According to the workpiece stocker jig of one aspect of the present invention, the jig body has a groove portion for arranging the workpieces at a position where the end faces the accommodation hole portion so that the workpieces can be dropped individually into the accommodation hole portion when the jig body with the workpieces arranged thereon is attached to the workpiece stocker. Therefore, the workpieces can be easily arranged in the workpiece stocker via the jig body. Furthermore, the jig body has a stopper member detachably attached thereto that can lock the workpiece when the jig body with the workpieces arranged thereon is attached to the workpiece stocker. Therefore, when the jig body is attached to the workpiece stocker with the stopper member attached, the workpiece is locked by the stopper member and does not fall into the accommodation hole portion. Moreover, by removing the stopper member from the jig body, the workpieces can be dropped into the individual accommodation hole portions all at once. This allows the jig body with the workpieces arranged thereon to be stably attached to the workpiece stocker, and allows the workpieces to be efficiently arranged in the accommodation hole portion of the workpiece stocker.

[0012] According to a workpiece stocker jig according to one aspect of the present invention, both ends of the jig body are formed with alignment portions that come into contact with the sides of the workpiece stocker when the jig body is attached to the workpiece stocker. This allows the jig body to be stably attached to the workpiece stocker, and allows multiple workpieces to be stably arranged on the workpiece stocker.

[0013] According to a workpiece stocker jig according to one aspect of the present invention, the jig body is configured to be connectable to another jig body. Therefore, a plurality of workpiece stocker jigs on which workpieces are arranged can be connected to each other and then attached to the workpiece stocker. This allows a large number of workpieces to be arranged in the workpiece stocker at once, and allows the workpieces to be arranged in the workpiece stocker efficiently.

[0014] According to one aspect of the present invention, the stopper member is formed in a flat rod shape that can be inserted into and removed from an insertion / removal portion that is formed in the jig body so as to be perpendicular to the groove. This makes it possible to easily remove the stopper member from the jig body attached to the work stocker. This allows multiple workpieces to be efficiently arranged in the work stocker.

[0015] According to one aspect of the present invention, the grinding device includes the work stocker jig according to one aspect of the present invention and a work stocker. Therefore, multiple workpieces can be efficiently placed in the accommodation hole of the work stocker, and the number of steps required to place the workpieces in the stocker can be reduced. This reduces the number of steps required for the entire grinding process. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view of a grinding device according to the present embodiment. [Diagram 2] FIG. 2 is a perspective view of the grinding apparatus in a state in which the workpiece is being ground. [Diagram 3] FIG. 3 shows a perspective view of the loader. [Figure 4] FIG. 4 shows a perspective view of a pallet. [Diagram 5] FIG. 5 shows a perspective view of the work stocker jig according to this embodiment. [Figure 6] FIG. 6 shows a cross-sectional view taken along line 6-6 in FIG. [Figure 7] FIG. 7 shows a bottom view of the work stocker jig. [Figure 8] FIG. 8 shows a bottom view of the work stocker jig with the stopper member removed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, a workpiece stocker jig and a grinding device according to an embodiment will be described with reference to the accompanying drawings. Similar or corresponding elements are given the same reference numerals, and duplicated explanations will be omitted. In order to facilitate understanding, the scale of the drawings may be changed.

[0018] 1 and 2 show perspective views of a grinding device 10. The grinding device 10 is used to grind a workpiece W attached to a work spindle 16 with a grinding wheel 14 rotatably attached to the tip of a grinding wheel spindle 12. In the drawings, arrows indicate the left-right direction, front-rear direction, and up-down direction of the grinding device 10 when the grinding device 10 is placed on a horizontal plane such as the floor of a factory or the like. In the drawings, X indicates the left-right direction (X-axis direction), Y indicates the front-rear direction (Y-axis direction), and Z indicates the up-down direction (Z-axis direction).

[0019] The grinding machine 10 includes a bed 18 as a base fixed to the floor of a factory, etc. A column 20 is erected along the Z-axis direction at one end of the upper surface of the bed 18 in the Y-axis direction, and a base portion 22 for mounting the work spindle 16 is disposed along the X-axis direction at the other end in the Y-axis direction.

[0020] The grindstone spindle 12 extending toward the work spindle 16 is disposed on the side of the column 20 facing the work spindle 16. The grindstone spindle 12 is disposed on the column 20 via a Z-axis slider 24 that is slidable along the Z-axis direction, i.e., the CZ-axis direction in the figure. Therefore, the grindstone spindle 12 is configured to be slidable along the CZ-axis direction. The grindstone spindle 12 is also configured to be able to rotate the disk-shaped grindstone 14 attached to its tip. This allows the grinding process to be performed after adjusting the height position of the grindstone 14 relative to the workpiece W attached to the work spindle 16, i.e., its position in the Z-axis direction.

[0021] An X-axis slider 26 configured to be slidable along the X-axis direction on the base part 22 is disposed on the upper side of the device above the base part 22, and a disk-shaped rotating seat part 28 is disposed above the X-axis slider 26. Therefore, the rotating seat part 28 on the X-axis slider 26 can slide along the X-axis direction.

[0022] The rotating seat 28 is configured to be rotatable around a rotation axis (not shown) extending along the Z-axis direction (R1 direction in the figure). A spindle mount 30 extending horizontally, in this case along the XY plane, is disposed on the upper surface of the rotating seat 28. The work spindle 16 is slidably disposed above the spindle mount 30. This allows the work spindle 16 to slide in the longitudinal direction of the spindle mount 30, i.e., along the U-axis direction in the figure, and to rotate around the rotation axis of the rotating seat 28, i.e., in the R1 direction.

[0023] The work spindle 16 is provided with a mounting shaft 32 for mounting the workpiece W. The longitudinal position and / or angle of the workpiece W relative to the grinding wheel 14 can be adjusted by sliding the work spindle 16 along the U-axis direction and / or rotating the workpiece W in the R1 direction.

[0024] At one end of the base 22 in the Y-axis direction, a loader 34 is disposed adjacent to the column 20 for supplying the workpieces W to the work spindle 16 and retrieving them therefrom. As shown in FIG. 3, the loader 34 is disposed on the upper surface of the base 22 and includes a loader base 38 for mounting a pallet 36 on its upper surface as a workpiece stocker on which a plurality of workpieces W are disposed, a pair of rails 40 disposed on the upper surface of the loader base 38 along the X-axis direction, and a loader body 42 erected along the Z-axis direction and slidable along the pair of rails 40. For this reason, the loader body 34 is configured to be slidable along the rails 40 in the X-axis direction, i.e., along the LX-axis direction in the figure. A pallet mounting stand 39 for mounting a plurality of pallets 36 is disposed on the upper surface of the loader base 38.

[0025] The loader body 42 is configured to include a pair of legs 44 that are erected along the Z-axis direction and can slide along the pair of rails 40, and a girder 46 that is suspended along the Y-axis direction from the upper ends of the pair of legs 44. The girder 46 has an LY-axis guide 52 formed along its longitudinal direction, and an LY-axis slider 54 configured to be slidable along the LY-axis guide 52 is disposed on the LY-axis guide 52. The LY-axis slider 54 has a Z-axis guide 48 formed along the Z-axis direction, i.e., the LZ-axis direction in the figure, and an LZ-axis slider 50 configured to be slidable along the Z-axis guide 48. This allows the LY-axis guide 52 to slide along the girder 46 and also along the LZ-axis direction.

[0026] The LY-axis slider 54 also has an arm driver 60 for sliding the arm 62 in the Y-axis direction, i.e., along the LY-axis direction in the figure, and for rotating the arm 62 around an axis along the Y-axis, i.e., in the R2 direction in the figure. A cylindrical slide part 58 is attached to the arm driver 60, extending along the Y-axis direction and having one end in the longitudinal direction connected to the arm 62. Therefore, the arm 62 can be rotated in the R2 direction by rotating the slide part 58 by the arm driver 60. The arm driver 60 also has a semi-cylindrical guide part 56 extending along the Y-axis direction for guiding the arm 62. Therefore, the guide part 56 can support and guide the slide part 58, which slides along the LY-axis direction by the arm driver 60.

[0027] The arm 62 is formed in a rod shape extending from an end of the slide portion 58 in a direction perpendicular to the longitudinal direction thereof, i.e., along the radial direction of the slide portion 58. The arm 62 is provided at its end with a supply hand 64 for taking out the unmachined workpiece W from the pallet 36 and attaching it to the mounting shaft 32 of the work spindle 16, and a recovery hand 66 for removing the machined workpiece W from the mounting shaft 32 of the work spindle 16 and returning it to the pallet 36. Therefore, it is possible to continuously remove the machined workpiece W from the mounting shaft 32 and attach a new workpiece W to the mounting shaft 32.

[0028] The supply hand 64 includes a first stationary plate 64a and a first movable plate 64b that faces the first stationary plate 64a and is configured to be able to approach or move away from the first stationary plate 64a, and is configured to grip the workpiece W between the first stationary plate 64a and the first movable plate 64b. The recovery hand 66 also includes a second stationary plate 66a and a second movable plate 66b that faces the second stationary plate 66a and is configured to be able to approach or move away from the second stationary plate 66a, and is configured to grip the workpiece W between the second stationary plate 66a and the second movable plate 66b.

[0029] FIG. 4 shows a perspective view of a pallet 36 as a work stocker. The pallet 36 is formed in a rectangular shape in a plan view, and has a mounting portion 68 on its underside for mounting to a pallet mounting base 39 of a loader base 38. A plurality of pallets 36 can be installed on the pallet mounting base 39 by arranging the pallet side portions 72 on the short side of the pallet 36 side by side. A plurality of accommodation holes 70 are formed inside the pallet 36, each of which is circular in a plan view, into which the workpieces W formed in a round bar shape are inserted. The accommodation holes 70 have an inner diameter set to a dimension substantially equal to the outer diameter of the workpieces W, and are formed at equal intervals over the entire surface along the long and short sides of the pallet 36 so that a large number of workpieces W, for example, 200 to 300 workpieces W, can be arranged on one pallet 36.

[0030] FIG. 5 shows a perspective view of a pallet jig 74 as a jig for a work stocker, and FIG. 6 shows a longitudinal cross-sectional view thereof. The resin pallet jig 74 has a jig body 76 formed in a flat plate shape and a groove portion 78 formed for placing the work W. The groove portion 78 is formed in a semicircular cross section so that a round bar work W can be placed therein. Here, the pallet jig 74 is attached to the pallet 36 so that the height direction, i.e., the longitudinal direction of the placed work W, is vertical so that the work W placed in the groove portion 78 can be dropped into the storage hole portion 70 by its own weight when the pallet jig 74 is attached to the pallet 36. Also, the groove portion 78 is formed at a position where its groove end portion 78a (see FIG. 8) faces the storage hole portion 70 so that the work W can be easily dropped therein. Here, the groove 78 has been described as being formed with a semicircular cross section in order to place a round bar workpiece W, but the present invention is not limited to this, and the groove may be formed with a rectangular or triangular cross section, for example, so that a square bar workpiece can be placed in. Also, here, the pallet jig 74 is described as being made of resin, but the present invention is not limited to this, and any material having sufficient strength to hold multiple workpieces may be used, for example, metal or other materials.

[0031] At both ends in the width direction of the jig body 76, jig side parts 82 are formed extending along the height direction, i.e., the vertical direction. The jig side parts 82 are formed extending vertically downward from the jig body 76, and the part extending beyond the jig body 76 is an alignment part 84. The width of the jig body 76 is set to match the width of the pallet 36, i.e., the length in the short direction. Therefore, when the pallet jig 74 is attached to the pallet 36, the alignment part 84 can be abutted against the pallet side part 72. This makes it possible to easily align the pallet jig 74 attached to the pallet 36 while suppressing or preventing it from shifting in the width direction, and the workpiece W placed in the groove part 78 can be stably placed in the accommodation hole part 70, i.e., dropped in. In addition, a plate-shaped guide part 80 is formed on the vertically downward side of the groove part 78 so as to cover it from the outside. This suppresses or prevents the workpiece W from falling onto the open side of the groove portion 78 when the pallet jig 74 is attached to the pallet 36, allowing the workpiece W to be stably positioned in the groove portion 78, and therefore the workpiece W can be stably dropped into the storage hole portion 70.

[0032] When placing the workpieces W in the grooves 78, the pallet jig 74 is placed with its back side, i.e., the side of the jig body 76 on which the grooves 78 are not formed, on a horizontal surface such as a table, and the grooves 78 are opened vertically upward. This allows the user to easily place multiple workpieces W in the grooves 78 by rolling them with their hands or a roller, without fitting or inserting the round bar workpieces W into the grooves 78 one by one. In addition, the pallet jig 74 may be provided with connecting members such as uneven protrusions or snap fits (both not shown) that can be fitted together on its back side and guide portion 80. This allows multiple pallet jigs 74 on which the workpieces W are placed to be connected to each other and then attached to the pallet 36, so that a large number of workpieces W can be efficiently placed on the pallet 36 all at once.

[0033] 7 and 8 show bottom views of the pallet jig 74. A groove-shaped insertion / removal portion 86 that opens downwardly so as to be perpendicular to the groove portion 78 along the width direction of the jig body 76 is formed on the lower end side of the jig body 76. A stopper member 88 formed in a flat bar shape is inserted and removed in the insertion / removal portion 86. Therefore, when the pallet jig 74 on which the workpieces W are placed are attached to the pallet 36, the stopper member 88 inserted into the insertion / removal portion 86 can lock the workpieces W that fall under their own weight at the groove end portion 78a. This suppresses or prevents the multiple workpieces W from falling before alignment, and the pallet jig 74 can be stably attached to the pallet 36. In addition, a grip portion 88a for a user to grip is formed on the end portion of the stopper member 88. Therefore, the user can easily remove the stopper member 88 from the jig body 76 by gripping the grip portion 88a, and the multiple workpieces W can be dropped into the individual accommodation holes 70 all at once. This allows multiple workpieces W to be efficiently placed in the accommodation holes 70 of the pallet 36. Note that, although the stopper member 88 is described below as being formed in a flat rod shape, it is not limited thereto and may be configured in other ways, such as a plate member formed so as to be insertable and removable from the guide portion side.

[0034] The effects of the grinding device 10 and the pallet jig 74 according to this embodiment will be described below.

[0035] According to the grinding machine 10 of this embodiment, as shown in Figs. 1 and 3, the pallet 36 with a number of workpieces W arranged in each accommodation hole 70 is installed on the pallet mounting base 39, and one of the workpieces W is gripped by the supply hand 64 and taken out from the pallet 36. From this state, the arm 62 is moved along the LY axis direction and the Z axis direction by the LY axis slider 54 and the LZ axis slider 50, and the arm 62 is moved along the LY axis direction and rotated in the R2 direction by the arm drive unit 60. This allows the workpiece W to be mounted on the mounting shaft 32, that is, to be supplied, as shown in Fig. 1. The workpiece W mounted on the spindle 16 is slid along the U axis direction on the spindle mounting base 30 and rotated by the rotating seat 28, so that the positions of the workpiece W and the grinding wheel 14 can be adjusted.

[0036] The workpiece W whose position has been adjusted is ground by the grindstone 14. During grinding, the arm 62 is moved to the side of the pallet 36, and the unmachined workpiece W for the next processing is held by the supply hand 64. When grinding of the workpiece W is completed, the arm 62 holding the workpiece W by the supply hand 64 is moved to the side of the work spindle 16. The moved arm 62 retrieves the machined workpiece W from the work spindle 16 by the retrieval hand 66, and attaches the unmachined workpiece W held by the supply hand 64 to the work spindle 16. The workpiece W retrieved by the retrieval hand 66 is returned to the pallet 36. Through such a series of operations by the loader 34, the workpiece W can be efficiently and continuously processed.

[0037] According to the pallet jig 74 of this embodiment, the jig body 76 is formed with a groove portion 78 for arranging the workpieces W at a position where the end faces the accommodation hole portion 70 so that the workpieces W can be dropped individually into the accommodation hole portion 70 when the jig body 76 with the workpieces W arranged therein is attached to the pallet 36. Therefore, the workpieces W can be easily arranged on the pallet 36 via the jig body 76. Furthermore, the jig body 76 is provided with a stopper member 88 that can lock the workpieces W when the jig body 76 with the workpieces W arranged therein is attached to the pallet 36 so as to be insertable and removable. Therefore, when the jig body 76 is attached to the pallet 36 with the stopper member 88 attached, the workpieces W are locked by the stopper member 88 and do not fall into the accommodation hole portion 70. Moreover, by removing the stopper member 88 from the jig body 76, the workpieces W can be dropped collectively into the individual accommodation hole portions 70. This allows the jig body 76 with multiple workpieces W arranged thereon to be stably attached to the pallet 36, and allows the multiple workpieces W to be efficiently arranged in the storage holes 70 of the pallet 36.

[0038] Furthermore, according to the pallet jig 74 of this embodiment, alignment portions 84 are formed on both ends of the jig body 76, which come into contact with the pallet side portions 72 when the jig body 76 is attached to the pallet 36. Therefore, the jig body 76 can be stably attached to the pallet 36, and multiple workpieces W can be stably arranged on the pallet 36.

[0039] Moreover, according to the pallet jig 74 of this embodiment, the jig body 76 is configured to be connectable to other jig bodies 76. Therefore, a plurality of pallet jigs 74 on which workpieces W are arranged can be connected to each other and then attached to the pallet 36. This allows a large number of workpieces W to be arranged on the pallet 36 all at once, and allows the workpieces W to be arranged on the pallet 36 efficiently.

[0040] Furthermore, according to the pallet jig 74 of this embodiment, the stopper member 88 is formed in a flat rod shape that can be inserted into and removed from the insertion / removal portion 86 formed in the jig body 76. Therefore, the stopper member 88 can be easily removed from the jig body 76 attached to the pallet 36. This allows multiple workpieces W to be efficiently arranged on the pallet 36.

[0041] Moreover, the grinding device 10 according to this embodiment includes the pallet jig 74 according to one aspect of the present invention and the pallet 36. Therefore, a plurality of workpieces W can be efficiently placed in the accommodation holes 70 of the pallet 36, and the number of steps required to place the workpieces W on the pallet 36 can be reduced. This reduces the number of steps required for the entire grinding process.

[0042] As described above, the grinding device 10 and the pallet jig 74 according to this embodiment can efficiently arrange a plurality of workpieces W to be machined by the grinding device 10 on the pallet 36.

[0043] Although the embodiment of the grinding device 10 and the pallet jig 74 has been described above, the present invention is not limited to the above embodiment. It is considered that a person skilled in the art can understand that various modifications of the above embodiment are possible. [Explanation of symbols]

[0044] 10 Grinding equipment 36 Pallets (Work Stocker) 70 Receiving hole 74 Pallet jig (work stocker jig) 76 Jig body 78 Groove 84 Alignment section 86 Insertion / Removal Part 88 Stopper member

Claims

1. A jig for a work stocker for collectively arranging a plurality of workpieces in a work stocker having a plurality of accommodation holes for accommodating a plurality of workpieces, A jig body, a groove portion formed in the jig body for arranging the plurality of workpieces, the groove portion being formed at a position facing the accommodating hole portion at an end thereof so that the plurality of workpieces can be individually dropped into the accommodating hole portion when the jig body on which the plurality of workpieces are arranged is attached to the work stocker; a stopper member that is detachably attached to the jig body and that can lock the work when the jig body on which the work is placed is attached to the work stocker; Equipped with The groove portion is formed in a semi-shape such that one side of the workpiece is exposed when the workpiece is placed therein, A guide portion is provided at one end side of the groove in the longitudinal direction so as to cover the workpiece placed in the groove from the outside. Jig for work stocker.

2. 2. The jig for a work stocker according to claim 1, further comprising alignment portions formed on both ends of said jig body and adapted to come into contact with sides of said work stocker when said jig body is attached to said work stocker.

3. 3. The workpiece stocker jig according to claim 2, wherein said jig body is configured to be connectable to another said jig body.

4. 4. The jig for a work stocker according to claim 1, wherein the stopper member is formed in a flat rod shape that can be inserted into and removed from an insertion / removal portion formed in the jig body so as to be perpendicular to the groove portion.

5. A grinding machine comprising the workpiece stocker jig according to claim 4 and the workpiece stocker.

Images