JP7009131B2 - Mounting jig - Google Patents

Description

The present invention relates to a mounting jig for mounting a grinding wheel on a mount of a rotary spindle.

A wafer in which a plurality of devices such as ICs and LSIs are partitioned by a scheduled division line and formed on the front surface is divided into individual devices by a dicing device after the back surface is ground by a grinding device to form a predetermined thickness. Each divided device is used for electric devices such as mobile phones and personal computers.

The grinding device includes a holding means for holding the wafer, a grinding means for rotatably provided with a grinding wheel for grinding the wafer held by the holding means, and a feeding means for relatively grinding and feeding the holding means and the grinding means. , At least composed of. The grinding wheel mounted on the mount of the rotary spindle of the grinding means is replaced with a different grinding wheel depending on the type of wafer, or when the grinding wheel of the grinding wheel is worn out and becomes unusable, it becomes a new grinding wheel. It is exchanged (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-178149

However, since it is difficult to hold the grinding wheel with one hand, it is necessary for two people to mount the grinding wheel on the mount of the rotary spindle of the grinding means, which is troublesome and inefficient. ..

An object of the present invention made in view of the above facts is to provide a mounting jig for efficiently mounting a grinding wheel on a mount of a rotary spindle.

In order to solve the above problems, the present invention provides the following mounting jigs. That is, it is composed of a ring-shaped wheel base and a jig arranged at the free end of the wheel base, and the wheel base is mounted on a mount of a rotary spindle on the opposite side of the free end. A mounting jig for mounting a grinding wheel having a mounting portion on the mount, the main body having a handle, a pressing portion protruding outward from the main body and pressing the inside of the wheel base, and the main body. The pressing portion is composed of at least an operating portion disposed on the handle side for operating the pressing portion, and the pressing portion is composed of a pair of plates having an outer diameter corresponding to the inner diameter of the wheel base and the pair of plates. The operation portion is composed of a spring member that projects the plate outward, a grip portion that is connected to the pair of plates and projects toward the handle side of the main body, and a grip portion that is formed on the main body and protrudes in the radial direction of the grip portion. When the pair of plates of the pressing portion is positioned inward against the spring member by moving the grip portion of the operating portion inward, the mounting jig is composed of a hole that allows the movement of the wheel. The tool can be positioned inside the grinding wheel, and with the mounting jig positioned inside the grinding wheel, the grip portion of the operating portion is released and the pair of spring members are urged. When the plates are projected outward, the pair of plates of the pressing portion can press the inside of the wheel base to fix the mounting jig to the grinding wheel, and the mounting jig can be fixed to the grinding wheel. It is a mounting jig that can lift the grinding wheel when the handle is held upward in a fixed state .

The mounting jig provided by the present invention has a main body having a handle, a pressing portion protruding outward from the main body and pressing the inside of the wheel base, and a pressing portion arranged on the handle side of the main body to operate the pressing portion. The pressing portion is composed of at least a pair of plates having an outer diameter corresponding to the inner diameter of the wheel base, and a spring member for projecting the pair of plates to the outside. The operating portion is composed of a grip portion connected to the pair of plates and protruding toward the handle side of the main body, and a hole formed in the main body and allowing the grip portion to move in the radial direction. By moving the grip portion of the operation portion inward and positioning the pair of plates of the pressing portion inward against the spring member, the mounting jig can be positioned inside the grinding wheel. With the mounting jig positioned inside the grinding wheel, when the grip portion of the operating portion is released and the pair of plates are projected outward by the urging force of the spring member, the pressing portion of the pressing portion is released. The pair of plates can press the inside of the wheel base to fix the mounting jig to the grinding wheel, and with the mounting jig fixed to the grinding wheel, the handle is turned upward. If you hold it, you can lift the grinding wheel, so use one hand to position the grinding wheel on the mount via the mounting jig, and use the other hand to turn the bolt inserted in the bolt hole of the mount to turn the grinding wheel. Since the grinding wheel can be mounted on the mount by one person by screwing it into the female screw of the above, the grinding wheel can be efficiently mounted on the mount and the grinding wheel can be efficiently removed from the mount.

The perspective view of the mounting jig configured according to this invention. An exploded perspective view of the mounting jig shown in FIG. 1. (A) A perspective view of a rotary spindle and a grinding wheel, and (b) a partial cross-sectional view of the grinding wheel. (A) A perspective view of the mounting jig and the grinding wheel with the pressing portion positioned inside, and (b) a perspective view of the mounting jig mounted on the grinding wheel. (A) A perspective view showing a state in which the grinding wheel is mounted on the mount of the rotary spindle using the mounting jig shown in FIG. 1, and (b) a perspective view showing a state in which the grinding wheel is mounted on the mount of the rotary spindle.

Hereinafter, embodiments of the mounting jig configured according to the present invention will be described with reference to the drawings.

The mounting jig 2 shown in FIG. 1 has a main body 4 having a handle H, a pressing portion 6 protruding outward from the main body 4 and pressing the inside of a wheel base 42 of a grinding wheel 40 described later, and a handle H side of the main body 4. It is composed of at least an operation unit 8 for operating the pressing unit 6 disposed in the above.

The main body 4 will be described with reference to FIGS. 1 to 3. The main body 4 in the illustrated embodiment includes a disk-shaped main portion 10 and a disk-shaped bottom portion 14 connected to the main portion 10 by a screw 12. The diameter of the main portion 10 is formed to be smaller than the inner diameter of the wheel base 42 shown in FIG. The main portion 10 to which the U-shaped handle H is fixed on one side is formed with four screw holes 16 for passing the screws 12. The bottom portion 14, which is formed to have the same diameter as the diameter of the main portion 10, has a thick-walled portion 18 extending in the radial direction of the bottom portion 14 and a pair of thin-walled portions 20 located on both sides of the thick-walled portion 18. In the thick portion 18 of the bottom portion 14, four female screws 22 are formed at positions corresponding to the four screw holes 16 of the main portion 10, and the screw 12 inserted into the screw hole 16 of the main portion 10 and the bottom portion. The main portion 10 and the bottom portion 14 are connected by screwing the thick portion 18 of 14 with the female screw 22. Further, a pair of spring member accommodating grooves 24 extending in the lateral direction of the thick portion 18 are formed in the thick portion 18 of the bottom portion 14. The thin portion 20 of the bottom portion 14 is formed with four recesses 26 extending in parallel with the spring member accommodating groove 24.

The pressing portion 6 will be described with reference to FIGS. 1 to 3. The pressing portion 6 in the illustrated embodiment is composed of a pair of plates 28 having an outer diameter corresponding to the inner diameter of the wheel base 42 shown in FIG. 3 and a spring member 30 for projecting the pair of plates 28 to the outside. ing. Each substantially semicircular plate 28 is arranged so as to be movable in the radial direction between the main portion 10 and the thin-walled portion 20 of the bottom portion 14. Further, each plate 28 is formed with two through openings 32 for passing both ends of the U-shaped grip portion 34 described later. A pair of spring members 30 made of coil springs are arranged in a spring member accommodating groove 24, and both ends of each spring member 30 are in contact with each plate 28. Then, each spring member 30 urges each plate 28 toward the outside, and positions each plate 28 at a protruding position (position shown in FIG. 1) where the outer circumference of each plate 28 protrudes from the outer circumference of the main body 4. ..

Continuing the description with reference to FIGS. 1 and 2, the operation unit 8 in the illustrated embodiment is connected to the pair of plates 28 of the pressing unit 6 and has a pair of gripping portions 34 protruding toward the handle H side of the main body 4. , A hole 36 formed in the main body 4 and allowing the grip portion 34 to move in the radial direction. Male threads 34a are formed on the outer peripheral surfaces of both ends of the grip portion 34 formed in a U shape. The four holes 36 formed in the main portion 10 of the main body 4 are arranged at positions corresponding to the recesses 26 of the thin-walled portion 20 of the bottom portion 14, and extend in parallel with the recesses 26. Then, both ends of the grip portion 34 pass through the hole 36 of the main portion 10 and the through opening 32 of the plate 28, and the nut 38 arranged in the recess 26 of the bottom portion 14 and the male screw 34 a of the grip portion 34 are screwed to grip the grip portion 34. The portion 34 is connected to the plate 28. When each grip portion 34 connected to the plate 28 was manually operated to move each grip portion 34 inward along the hole 36, the grip portion 34 was connected to each grip portion 34 against the urging force of the spring member 30. Each plate 28 can be positioned inward from the protruding position (see FIG. 4A). Further, since the recess 26 is formed in the bottom portion 14, the nut 38 is allowed to move in the radial direction.

As shown in FIG. 3A, the grinding wheel 40 is composed of a ring-shaped wheel base 42 and a grindstone 44 arranged at a free end of the wheel base 42. The wheel base 42 has a mounting portion 46 mounted on the mount 52 of the rotary spindle 50 on the opposite side of the free end portion on which the grindstone 44 is arranged. A plurality of female threads 46a are formed on the mounting portion 46 at intervals in the circumferential direction. Further, a plurality of bolt holes 54 are formed on the peripheral edge of the disk-shaped mount 52 at positions corresponding to the female threads 46a of the mounting portion 46. Then, the grinding wheel 40 is fixed to the mount 52 by screwing the bolt 56 inserted into the bolt hole 54 of the mount 52 and the female screw 46a of the mounting portion 46 of the wheel base 42. Further, in the illustrated embodiment, as shown in FIG. 3B, an annular groove 48 is formed on the inner peripheral surface of the wheel base 42, and grinding supplied when grinding the workpiece is performed. A passage opening 49 through which water passes extends from the annular groove 48 toward the free end.

When mounting the grinding wheel 40 on the mount 52 of the rotary spindle 50 using the mounting jig 2 as described above, first, as shown in FIG. 4A, each grip portion 34 is manually operated to grip each grip portion 34. The portion 34 is moved inward to position each plate 28 inward against the urging force of the spring member 30. Next, with each plate 28 positioned inside, the handle H is gripped to position the mounting jig 2 inside the grinding wheel 40. Next, with the mounting jig 2 positioned inside the grinding wheel 40, the manual operation applied to each grip portion 34 is released, and each plate 28 is projected to the outside of the main body 4 by the urging force of the spring member 30. Then, since the tip of each plate 28 engages with the annular groove 48 of the grinding wheel 40, the mounting jig 2 is fixed to the grinding wheel 40 as shown in FIG. 4 (b). Next, the grinding wheel 40 is positioned on the mount 52 of the rotary spindle 50 via the mounting jig 2 with one hand, and the bolt 56 inserted into the bolt hole 54 of the mount 52 is turned with the other hand to turn the female screw of the grinding wheel 40. It is screwed into 46a (see FIGS. 5 (a) and 5 (b)). By using the mounting jig 2 in this way, the grinding wheel 40 can be mounted on the mount 52 of the rotary spindle 50 by one operator, so that the grinding wheel 40 can be efficiently mounted on the mount 52.

Further, when the grinding wheel 40 is removed from the mount 52 of the rotary spindle 50 by using the mounting jig 2, first, each grip portion 34 is manually operated to move each grip portion 34 inward, and the spring member 30 is subjected to a manual operation. With each plate 28 positioned inward against the urging force, the handle H is gripped to position the mounting jig 2 inside the grinding wheel 40. Next, the manual operation applied to each grip portion 34 is released, and each plate 28 is projected to the outside of the main body 4 by the urging force of the spring member 30. As a result, the tip of each plate 28 is engaged with the annular groove 48 of the grinding wheel 40, and the mounting jig 2 is fixed to the grinding wheel 40. Next, while grasping the handle H of the mounting jig 2 with one hand, turn the bolt 56 inserted into the bolt hole 54 of the mount 52 with the other hand, and screw the female screw 46a and the bolt 56 of the grinding wheel 40. Release the match. By using the mounting jig 2 in this way, the grinding wheel 40 can be removed from the mount 52 of the rotary spindle 50 by one operator, so that the grinding wheel 40 can be efficiently removed from the mount 52.

In the illustrated embodiment, an example in which the grinding wheel 40 having the annular groove 48 is attached to and detached from the mount 52 of the rotary spindle 50 has been described, but even if the grinding wheel does not have the annular groove 48, the mounting jig 2 Can be attached to and detached from the mount 52 of the rotary spindle 50 using the above. When handling a grinding wheel that does not have an annular groove 48, for example, by attaching an elastic material such as rubber to the tip of the plate 28, friction between the inner peripheral surface of the wheel base and the tip of the plate 28 By force, the grinding wheel and the mounting jig 2 having no annular groove 48 can be fixed.

2: Mounting jig 4: Main body H: Handle 6: Pressing part 8: Operation part 28: Plate 30: Spring member 34: Grip part 36: Hole 40: Grinding wheel 42: Wheel base 44: Grinding stone 46: Mounting part 50 : Rotating spindle 52: Mount

Claims (1)

It consists of a ring-shaped wheel base and a grindstone arranged at the free end of the wheel base, and the wheel base is mounted on the mount of the rotary spindle on the opposite side of the free end. A mounting jig for mounting a grinding wheel having a portion on the mount.
A main body having a handle, a pressing portion protruding outward from the main body and pressing the inside of the wheel base, and an operating portion arranged on the handle side of the main body for operating the pressing portion.
From, at least composed ,
The pressing portion is composed of a pair of plates having an outer diameter corresponding to the inner diameter of the wheel base, and a spring member for projecting the pair of plates to the outside.
The operating portion is composed of a grip portion that is connected to the pair of plates and projects toward the handle of the main body, and a hole formed in the main body that allows the grip portion to move in the radial direction.
By moving the grip portion of the operation portion inward and positioning the pair of plates of the pressing portion inward against the spring member, the mounting jig can be positioned inside the grinding wheel. ,
With the mounting jig positioned inside the grinding wheel, the grip portion of the operating portion is released and the pair of plates are projected outward by the urging force of the spring member. A pair of plates can press the inside of the wheel base to secure the mounting jig to the grinding wheel.
A mounting jig that can lift the grinding wheel when the handle is held upward with the mounting jig fixed to the grinding wheel .

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