JP4035556B1 - Processing jig - Google Patents

Abstract

The present invention provides a processing jig in which a contact surface of a workpiece is hardly damaged.
A metal jig body 3 placed on a table 2 of a machine tool or the like and fixed at a required position, and a hard resin substrate integrally provided on the upper surface side of the jig body 3. It is composed of a workpiece attachment plate portion 4, and in use, the workpiece 5 is screwed into the jig body 3 from the workpiece 5 through the workpiece attachment plate portion 4, or from the jig body 3. It is attached to the workpiece attachment plate portion 4 by a screw tool 6 screwed into the workpiece 5 through the workpiece contact plate portion 4.
[Selection] Figure 2

Description

  The present invention relates to a processing jig that is used by being attached to a table when the workpiece is attached to a table such as a machine tool for machining (cutting or grinding).

  Specific known documents such as patent publications cannot be cited as conventional processing jigs. However, since the processing jigs that have been used in the past are formed entirely of metal, such as aluminum When a non-ferrous metal material or a thin workpiece is attached to a jig for machining, there is a problem that the contact surface of the workpiece that comes into contact with the jig is damaged and the product value of the workpiece is impaired.

  In view of the above problems, an object of the present invention is to provide a processing jig in which a contact surface of a workpiece is hardly damaged.

Means for solving the above problems will be described with reference numerals in the embodiments described later. The processing jig according to the first aspect of the present invention is placed on a table 2 such as a machine tool to have a required position. in a metal jig body 3 fixed, made of a hard resin of the workpiece mounting plate portion 4 which is provided integrally with the upper surface of the jig body 3, the workpiece mounting plate In addition to providing drainage grooves 10 and 11 that communicate with each other on the upper surface side of the portion 4, a drainage hole 12 that penetrates the jig body 3 from the bottom of the drainage grooves 10 and 11 and opens on the lower surface thereof is provided. The workpiece 5 is screwed into the jig body 3 from the workpiece 5 through the workpiece attachment plate 4 or from the jig body 3 through the workpiece contact plate 4. Attached to the work piece mounting plate 4 by a screw 6 screwed into 5 Characterized in that it has become to so that.

Claim 2 is the working jig according to claim 1, wherein the workpiece mounting plate 4 is rigid polyurethane.

  The effect of the invention by the above-described solution means will be described with reference numerals of embodiments described later. According to the processing jig 1 of the invention according to claim 1, it is placed on a table 2 such as a machine tool. Since the workpiece mounting plate 4 made of hard resin is provided on the upper surface side of the metal jig body 3 fixed at a required position, the workpiece 5 is made of a non-ferrous metal such as aluminum or stainless steel. In the case of being made of a material softer than the jig body 3, it is possible to prevent the bottom surface of the workpiece 5 from being scratched or to be hardly scratched.

  In particular, in the processing jig 1, the jig main body 3 is made of metal, and a workpiece mounting plate 4 made of hard resin is integrally fixed to the upper surface side of the metal jig main body 3. Therefore, the processing jig 1 is not deformed when the workpiece 5 is processed, and therefore the workpiece 5 is not displaced, so that sufficient processing accuracy can be ensured.

  Moreover, according to this processing jig 1, even if the workpiece 5 is a metal, a brittle material (ceramics, sintered material, MMC, sprayed ceramic, etc.), or a carbon-based material, the workpiece mounting plate portion The hard urethane 4 becomes an appropriate cushion, so that the workpiece 5 can be easily attached to the jig 1, and cracks and cracks can be prevented.

Further , according to the processing jig 1 , the drain grooves 10 and 11 communicating with each other are provided on the upper surface side of the workpiece mounting plate portion 4, and the jig main body 3 is provided from the bottom of the drain grooves 10 and 11. Since a drain hole 12 is formed in the lower surface of the workpiece mounting plate 4 so as to penetrate the workpiece, it accumulates on the upper surface of the workpiece mounting plate portion 4 when machining is performed for a long time using a machining fluid such as a coolant or a grinding fluid. By discharging the grinding liquid from the drain grooves 10 and 11 through the drain holes 12, an inconvenient trace such as a stripe pattern does not remain on the lower surface of the workpiece 5 by the processing liquid.

According to claim 2 , hard polyurethane is effective as the workpiece attachment plate portion 4, and hardness of 80 or more is particularly effective.

  A preferred embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 of the drawings is a perspective view showing an appearance of a processing jig according to the present invention, and FIG. 2 (a) is a workpiece. FIG. 5B is a cross-sectional view of a state where the workpiece is attached to the processing jig, and FIG. 5B is a cross-sectional view of the state where the workpiece is attached to the processing jig.

  A processing jig 1 according to the present invention is integrated with a jig body 3 made of magnetic metal, which is placed on a table 2 such as a machine tool and fixed at a required position by a magnet, and an upper surface side of the jig body 3. The workpiece 5 is fixedly attached to the workpiece mounting plate 4 with a bolt (screw tool) 6 at the time of processing. It is like that. Although not shown, the table 2 is provided with a magnet base, and a magnetic metal jig body 3 is attracted and fixed to the magnet base.

  The jig body 3 is formed of a magnetic iron-based metal with a predetermined thickness, and the jig body 3 is provided with screw holes 7 for bolting the workpiece 5 at a plurality of locations. ing. Although the thickness of the jig body 3 depends on the condition of the workpiece 5, it is necessary to ensure a thickness that does not lose the stress of the workpiece 5. The work attachment plate 4 is obtained by cutting a hard polyurethane plate having a predetermined thickness into the same size as the jig body 3, and is fixed to the upper surface of the jig body 3 by baking or pasting with an adhesive. Has been. Further, a bolt insertion hole 8 is provided at a position corresponding to the screw hole 7 of the jig body 3 in the workpiece attachment plate portion 4.

  The hardness of the hard polyurethane forming the workpiece attachment plate portion 4 is desirably 80 or more in Shore hardness (hardness measured by a Shore hardness tester which is a kind of repulsive hardness tester). This is because, if the workpiece mounting plate portion 4 does not have a certain degree of hardness, the processing jig 1 is deformed when the workpiece 5 is processed, and the workpiece 5 is displaced by the deformation, This is because the machining accuracy is lowered, and if the hardness of the workpiece mounting plate portion 4 is 80 or more, the jig 1 is not deformed and sufficient machining accuracy is secured. .

  When using the processing jig 1 configured as described above, as shown in FIG. 2A, for example, the processing jig 1 is placed on the upper surface of the table 2 of the grinding machine, Adsorb and fix. Thus, for example, the workpiece 5 made of aluminum is brought to the upper side of the processing jig 1, and the bolt 9 is attached from the state where the workpiece 1 is placed on the workpiece mounting plate 4. The work piece 5 made of aluminum is attached to the work piece by tightening by screwing into the screw hole 7 of the jig body 3 from the bolt insertion hole 9 of the work piece 5 through the bolt insertion hole 8 of the work piece attaching plate 4. It fixes to the upper surface of the board part 4 for work.

  Thus, for example, the workpiece 5 is ground by the grinder while the workpiece 5 made of aluminum, for example, is brought into contact with the upper surface of the workpiece attachment plate 4 of the processing jig 1 and fixed with the bolt 6. Do.

  In this case, the work piece 5 made of aluminum is attached in contact with the work attachment plate 4 made of hard polyurethane, which is softer than aluminum, so that it is not damaged.

  In the processing jig 1 shown in FIGS. 2A and 2B, a screw hole 7 is provided on the jig body 3 side of the jig 1 and a bolt insertion hole 9 is provided on the workpiece 5 side. The bolt 9 is screwed from the bolt insertion hole 9 of the workpiece 5 into the screw hole 7 of the jig body 3 through the bolt insertion hole 8 of the workpiece mounting plate 4 and tightened. As shown in (c), a bolt insertion hole 9 is provided in the jig body 3 of the jig 1, a bolt insertion hole 8 is provided in the workpiece mounting plate portion 4, and a screw hole 7 is provided on the workpiece 5 side. The bolt 6 may be screwed into the screw hole 7 of the workpiece 5 from the bolt insertion hole 9 of the jig body 3 through the bolt insertion hole 8 of the workpiece attachment plate 4 and tightened. .

  In addition, when an aluminum workpiece 5 is attached to the processing jig 1 and machining is performed by a machine tool, aqueous or oily machining fluid (coolant, grinding) is applied to the workpiece 5 by a machining liquid nozzle. Liquid) is injected and supplied, and the machining liquid accumulates on the upper surface of the workpiece mounting plate portion 4, and when the machining takes a long time of several tens of hours, it is applied to the lower surface of the aluminum plate material that is the workpiece 5. May have a striped pattern due to the machining fluid, and the striped pattern may remain after machining. Therefore, in order to eliminate such inconvenience, in the processing jig 1 shown in FIGS. 3 (a) and 3 (b), vertical and horizontal drainage grooves communicating with each other on the upper surface side of the workpiece mounting plate portion 4. 10 and 11, and a drain hole 12 that penetrates the jig body 3 from the bottom of the drain grooves 10 and 11 and opens on the lower surface thereof.

  Thus, when, for example, a grinding operation is performed using the processing jig 1 having the drain grooves 10 and 11 and the drain holes 12 as described above, the grinding accumulated on the upper surface of the workpiece mounting plate portion 4. By discharging the liquid from the drain grooves 10 and 11 through the drain holes 12, it is possible to prevent the striped pattern from adhering to the lower surface of the workpiece 5. In this case, although not shown, the table 2 of the machine tool on which the jig body 3 of the processing jig 1 is placed and fixed is provided with a drain port facing the drain hole 12 of the jig body 3. Thus, the water in the drain hole 12 is sucked and discharged from the drain port.

  As described above, according to the processing jig 1 of this embodiment, a hard polyurethane-made jig 3 is placed on a table 2 such as a machine tool and fixed with a magnet on the upper surface side. Since the workpiece attachment plate 4 is provided, the lower surface of the workpiece 5 when the workpiece 5 is made of a material softer than the jig body 3 such as a non-ferrous metal such as aluminum or stainless steel. It is possible to prevent scratches or to prevent scratches.

  In particular, in the processing jig 1, the jig main body 3 is made of metal, and a rigid polyurethane workpiece attachment plate 4 is integrally fixed to the upper surface side of the metal jig main body 3. Therefore, the processing jig 1 is not deformed when the workpiece 5 is processed, and therefore the workpiece 5 is not displaced, so that sufficient processing accuracy is ensured.

  Moreover, according to this processing jig 1, even if the workpiece 5 is a metal, a brittle material (ceramics, sintered material, MMC, sprayed ceramic, etc.), or a carbon-based material, the workpiece mounting plate portion The hard urethane 4 becomes an appropriate cushion, so that the workpiece 5 can be easily attached to the jig 1, and cracks and cracks can be prevented.

  A hard resin other than hard polyurethane can be used as the workpiece mounting plate portion 4, but hard polyurethane is effective, and hardness of 80 or more is particularly effective.

  In this embodiment, the table 2 is provided with a magnet base and the magnetic metal jig body 3 is attracted and fixed to the magnet base. However, the table 2 is not provided with a magnet base. The jig body 3 is fixed to a required position of the table 2 by fixing means such as a bolt.

It is a perspective view showing appearance of one embodiment of a processing jig concerning the present invention. (a) is a cross-sectional view of a state in which the workpiece is being attached to the processing jig, (b) is a cross-sectional view of the state in which the work is attached to the processing jig, and (c) is slightly different in form. It is sectional drawing of the state which attached the workpiece to the processing jig. (a) is a top view which shows other embodiment of the processing jig which concerns on this invention, (b) is XX sectional drawing of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing jig 2 Machine tool table 3 Jig body 4 Workpiece mounting plate 5 Workpiece 6 Bolt (screw)
10, 11 Drainage channel 12 Drain hole

Claims (2)

A metal jig body that is placed on a table such as a machine tool and is fixed to a required position, and a hard resin work piece mounting plate portion that is integrally provided on the upper surface side of the jig body. The drainage grooves that communicate with each other are provided on the upper surface side of the workpiece mounting plate portion, and the drainage holes that pass through the jig body from the bottom of these drainage grooves and open on the lower surface thereof are provided . The workpiece is screwed into the jig body from the workpiece through the workpiece mounting plate or from the jig body into the workpiece through the workpiece abutting plate. A processing jig adapted to be attached to a workpiece contact plate. The processing jig according to claim 1 , wherein the workpiece attachment plate is made of rigid polyurethane .

Images