JPH0630903U - Head block processing base - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a base for head block processing which is easy to set and low in cost. [Structure] Head block 1 for cutting with grindstone 22
A base 12 for processing a head block for mounting 0,
A head block processing base in which the head block processing base 12 is made of a resin material and a groove 14 into which the head block 10 is fitted is formed on the surface thereof.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a head block processing base for mounting and fixing the head block when the head block is cut by a grindstone.

[0002]

[Prior art]

 A magnetic head used for video and audio is obtained by cutting a block body called a head block with a grindstone to a certain thickness in the lateral direction. For this reason, it is necessary to fix the head block when it is applied to the grindstone, but in the past, a method of fixing it with an adhesive on the head block processing base (hereinafter referred to as the base) made of plaster or carbon was used. I was taking it. That is, after applying adhesive on a base with a flat surface and fixing it with a device called an adjustment jig, several head blocks were placed side by side on this adhesive. is there.

[0003]

[Problems to be solved by the device]

 According to such a method, the adhesion state of the adhesive is not uniform, and the adhesive may enter between the head blocks, so that the head blocks are not aligned and the orientation of the head blocks is not uniform. It will be different. In particular, there is a type in which the longitudinal line of the head block is tilted at a certain angle with the axis of the grindstone.In such a case, tilt the contact surface of the adjustment jig and press the head block against this contact surface. Although it is angled, it is difficult and difficult to operate.

In recent years, the material of the head has been changed from ferrite to a hard amorphous alloy. For such a material, there is a situation in which gypsum or carbon cannot withstand the processing pressure of the grindstone because of its strength. Is coming. In addition, gypsum and carbon were manufactured by casting in one piece, which prevented mass production and resulted in high costs. The present invention solves such a problem, and an object of the present invention is to provide a base in which the head block can be easily set, and which has high strength and low cost.

[0005]

[Means for Solving the Problems]

 Under the above problems, the present invention is a base on which a head block is placed for cutting with a grindstone, the base is made of a resin material, and a groove into which the head block fits is formed on the surface thereof. It was formed.

[0006]

[Action]

 By taking the above means, in order to fix the head block to the base, it suffices to pour the adhesive into the groove and fit the head block into the groove, which is easy to operate and has high accuracy. improves. It should be noted that conventional gypsum and carbon materials do not allow such grooves to be formed due to the characteristics of the material (soft machining etc. is not possible, but it would be costly to do so). However, I had no choice but to rely on the above method.

[0007]

【Example】

 FIG. 6 shows a rectangular parallelepiped block body called a head block 10, which is cut in a lateral direction to a constant thickness (0.2 mm for a thin one) to form a magnetic head. FIG. 1 is a plan view of a base 12 according to the present invention, in which a plurality of grooves 14 into which the head block 10 is fitted are formed in parallel on the surface of the base 12. It should be noted that the groove 14 in this example is one in which one head block 10 is fitted in one groove 14, but it is also possible to make the width of the groove 14 wide and to fit several pieces together. FIG. 2 is a bottom view of the base 12, but a slime 16 is inserted near the center of the bottom surface and appropriate ribs 18 are provided to reduce the weight of the whole.

By the way, such a base 12 is made of a resin material and is obtained as a molded product by a mold. Although there are various types of resin materials, a polyester composite material that does not melt even when the temperature rises during cutting and has little deformation is suitable. Since this material has a clay-like material shape and is easy to mold, and can be re-dissolved and can be recycled, it can be said to be a preferable material in terms of moldability, economic efficiency, and environmental protection.

FIG. 3 is a cross-sectional view of an essential part of the state where the head block 10 is fitted into the groove 14 described above. First, an adhesive is applied to the bottom surface of the groove 14 (side surface in some cases), The head block 10 is fitted into it and adhered and fixed. At this time, if the adhesive layer is thick, the head block 10 tries to slightly lift, so a small groove 20 for accumulating the adhesive is formed on the bottom surface of the groove 14, and the adhesive is contained only in the small groove 20. A method of painting can be considered.

FIG. 4 is a cross-sectional view when the head block 10 is set on the base 12 as described above and is cut by the grindstone 22, but the base 12 on which the head block 10 is set is cut by a cutting machine. The head block 10 is fixed to the table 24 (vacuum type for sucking the air in the space 16 is effective), and the table 24 is moved to the grindstone 22 side to cut each head block 10 (at this time, the base 12 is also partially cut). ). When each head block 10 is disconnected, the table 24 is returned and the same operation is repeated.

FIG. 5 is a plan view showing another embodiment of the base 12, but in the present embodiment, the direction of the groove 14 is tilted at an angle α from the edge line of the base 12 (the axis of the grindstone 22). (The example above is straight). This is for manufacturing a magnetic head whose cutting surface is inclined, and is set to 6 ° or 30 ° depending on the target model.

[0012]

[Effect of device]

 As described above, since the present invention is the one described above, the following effects can be expected. 1) To set the head block to the base, it is sufficient to apply an adhesive to the groove formed in the base and fit the head block into the groove, so the operation is simple and the accuracy is good. Further, since the head block is fitted in the groove, the side surface of the groove is received by the side surface of the groove so that the fixation becomes firm, and the head block does not move even when the processing pressure of the grindstone is applied, and the processing defect does not occur. From these points, the defect rate is reduced and the yield is improved. 2) Since the base is a molded product made of a resin material, it can be mass-produced and the cost can be reduced. Also, if a specific resin material is used, it can be recycled easily, which is favorable for environmental protection. Furthermore, it is stronger than gypsum and carbon materials and can withstand high processing pressure. Further, it is possible to reduce the weight.

[Brief description of drawings]

FIG. 1 is a plan view of a base according to the present invention.

FIG. 2 is a bottom view of a base according to the present invention.

FIG. 3 is a cross-sectional view of a base according to the present invention.

FIG. 4 is a partial cross-sectional view showing a cut state of a head block.

FIG. 5 is a plan view of a base according to another embodiment of the present invention.

FIG. 6 is a perspective view of a head block.

[Explanation of symbols]

 10 Head Block 12 Base for Head Block Processing 14 Groove 20 Small Groove 22 Grindstone

Claims (7)

[Scope of utility model registration request] 1. A head block processing base for mounting a head block for cutting with a grindstone, wherein the head block processing base is made of a resin material, and a groove into which the head block fits is formed on the surface thereof. The base for processing the head block that has been formed. 2. A head block processing base, wherein the resin material according to claim 1 is a heat resistant polyester composite material. 3. A base for machining a head block, wherein the groove according to claim 1 or 2 is for individually fitting the head blocks. 4. A base for processing a head block, wherein the groove according to claim 1 or 2 fits several head blocks together. 5. A base for processing a head block, wherein a small groove for accumulating an adhesive is formed on the bottom surface of the groove according to any one of claims 1 to 4. 6. A base for processing a head block, wherein the groove according to any one of claims 1 to 5 is formed parallel to the axis of the grindstone. 7. A base for machining a head block, wherein the groove according to any one of claims 1 to 5 is formed with a certain angle with respect to the axis of the grindstone.