JP2018183814A - Boring machine type dresser device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a boring machine type dresser device with which an electrode can be easily attached/detached, and which enables anyone to easily cut the electrode.SOLUTION: In a boring machine type dresser device, a dresser head 1 attached with a cutter blade 12 in a hole portion 9 opening at a lower end, is attached to a drill installing portion 3 of a boring machine 2. A dresser base 5 detachably attached with an electrode 7 is fixed on a table 6 of the boring machine 2 under the dresser head 1. By actuating the boring machine 2, the dresser head 1 is rotated, and by operating a handle 4 of the boring machine 2, the dresser head 1 is lifted/lowered. To a holder 22 of the dresser base 5, the electrode 7 integrally formed with a shank portion 27 and a chip portion 28 is attached while preventing rotations by a rotation-preventive member 24. Also, in a notch groove 19 provided at an upper end of the holder 22, the rotation-preventive member 24 in which the chip portion 28 of the electrode 7 is inserted is fitted.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a drilling machine-type dresser device that is used by being attached to a drilling machine in order to cut an electrode of an electric resistance spot welding machine.

  If the electrode of an electric resistance spot welder is repeatedly welded, good welding cannot be performed due to wear or deformation of the electrode or adhesion of welding debris to the surface. Therefore, there is a problem that it is difficult for an amateur to polish the surface of the electrode accurately.

In order to solve such a problem, conventionally, as shown in FIG. 7, a dresser head 51 with a built-in cutter blade is attached to a drill mounting portion of a drilling machine, and a dresser base 52 is placed below the dresser head 51 on the drilling machine. The cap chip 53 is removably attached to the dresser base 52, fixed on the table, the dresser head 51 is rotated by operating the drilling machine, the dresser head 51 is lowered by operating the handle of the drilling machine, and the dresser base 52 There is a drilling machine type dresser device that anyone can cut into a fixed surface shape by cutting the cap chip 53 attached to the head, even if it is not a skilled engineer.
(For example, see Patent Document 1)

JP 1815-047470 A

  In the above, the cap tip attached to the shank is cut, and in such a drilling type dresser device, in the electrode in which the shank portion and the tip portion are integrally formed, the shank portion and the tip portion are integrated with the dresser base. Since it is impossible to attach the electrode formed in the above, there has been a demand for a drilling machine for the electrode.

  The present invention has been made in view of the above points, and provides a drilling machine-type dresser device in which a shank part and a chip part can be easily attached and detached, and an electrode can be easily cut by anyone. It was made for the purpose of providing.

  The drilling machine type dresser device of the present invention made to solve the above problems is a dresser head in which a dresser head having a cutter blade mounted in a hole having a lower end opened is mounted on a drill mounting part of the drilling machine, and an electrode is detachably mounted. In a drilling machine type dresser device, a base is fixed on a table of a drilling machine below the dresser head, the dresser head is rotated by operating the drilling machine, and the dresser head is moved up and down by operating the handle of the drilling machine. An electrode in which a shank portion and a tip portion are integrally formed is attached to a base holder while preventing rotation by a rotation stopping member.

  It is preferable that an anti-rotation member in which an electrode tip portion is inserted is fitted into a notch groove provided at the upper end of the holder, and this is an invention according to claim 2.

  According to the first aspect of the present invention, since the electrode in which the shank portion and the tip portion are integrally formed is attached to the dresser base holder while preventing the rotation by the anti-rotation member, anyone can easily make the shank portion and the tip. Can cut the electrode with the integrated part

  According to the second aspect of the present invention, since the anti-rotation member in which the tip portion of the electrode is inserted is fitted into the notch groove provided at the upper end of the holder, the electrode can be easily attached and detached.

It is a front view which shows the use condition of this invention. FIG. 2 is a partially cutaway front view of the dresser head of FIG. 1. It is a front view of the dresser base which attached the electrode of FIG. FIG. 4 is a cross-sectional side view of FIG. 3. It is drawing of the holder of FIG. 3, (a) is a top view, (b) is a cross-sectional front view, (c) is a side view. It is drawing of the rotation stop member of FIG. 3, (a) is a top view, (b) is a front view. It is a front view which shows a prior art example.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS. 1 to 6. FIG. 1 is a front view showing a use state of the present invention, in which 1 is attached to a drill mounting portion 3 of a drilling machine 2. The dresser head 1 is rotated by operating the drilling machine 2 and moved up and down by operating the handle 4.

  Reference numeral 5 denotes a dresser base fixed on the table 6 of the drilling machine 2 below the dresser head 1, and an electrode 7 is detachably attached to the dresser base 5.

  As shown in FIG. 2, the dresser head 1 has a cylindrical body 10 having a hole 9 having an opening at the lower end and a mounting shaft 8 projecting from the upper part, and a hole 9 in the cylindrical body 10. And a cutter blade 12 detachably attached by a clamp member 11.

  As shown in FIGS. 3 to 6, the dresser base 5 has a cylindrical insertion hole 13 having an upper end opened and a screw hole 14 reaching the insertion hole 13 from one side surface, and a mounting plate 15 is fixed to the lower end. The prismatic main body 16 is provided with a step 17 at the middle part, the lower part is a small diameter part, a flat depression 18 is provided at the middle part of the small diameter part, and the inner facing surfaces of both ends are parallel to the upper end. An oblong cut-out groove 19 which is a wall surface is formed, a holder 22 provided with an insertion hole 21 for the electrode 7 having a step 20 in the middle portion and a lower diameter portion at the lower portion, and a tip portion of the electrode 7 are inserted. A rectangular through hole 23 is formed, and is fitted into the oval-shaped notch groove 19 of the holder 22 so as to prevent rotation of the electrode 7 and is screwed into the screw hole 14 of the main body 16, In contact with the recessed portion 18 of the holder 22 A bolt 25 that rotatably held, is mounted on the lower portion of the holder 22, and a coil spring 26 for relieving the impact to the electrode 7.

  The electrode 7 is integrally formed with a lower cylindrical shank portion 27 and a tip portion 28 that is a so-called tongue-like protrusion having a plate-like shape in the side view and the same diameter as the shank portion 27 in plan view. Is formed. In addition, when welding the bottom face of the groove | channel formed in the iron plate etc., such an electrode inserts a tongue-shaped tip part in a groove | channel, and welds it.

  Next, the operation of the present invention will be described. The mounting shaft 8 at the top of the dresser head 1 is mounted on the drill mounting portion of the drilling machine 2 to mount the dresser head 1 on the drilling machine 2 and the table 6 of the drilling machine 2 is abbreviated. At the center, the dresser base 5 is attached and fixed by a mounting plate 15 at a position below the dresser head 1 where the hole 9 of the dresser head 1 and the holder 22 of the dresser base 5 correspond.

  Thereafter, the shank portion 27 of the electrode 7 is inserted into the insertion hole 21 of the holder 22 of the dresser base 5 until the bottom surface reaches the step 20, and the through-hole 23 of the rotation stopping member 24 is fitted into the tip portion 2 of the electrode 7 to hold the holder. An anti-rotation member 24 is fitted into the oval-shaped notch groove 19 at the upper end of 22. Thereby, the rotation of the electrode 7 is blocked by the rotation stop member 24.

  Further, the dresser head 1 is rotated by operating the drilling machine 2, and the dresser head 1 is lowered by operating the handle 4 of the drilling machine 2, and inserted into the electrode 7 attached to the dresser base 5 in the hole 9. The cutter blade 12 attached to the inside of the head 1 is brought into contact with the tip of the tip portion 28 of the electrode 7 to cut the tip portion 28.

  A strong impact force is applied when the cutter blade 12 of the dresser head 1 comes into contact with the tip portion 28 of the electrode 7, but the impact force is alleviated by the coil spring 26 and the cutter blade 12 and the electrode 7 are prevented from being damaged by the impact. In addition, during polishing, the electrode 7 is rotated by the cutter blade 12. However, since the rotation stopper 24 is fitted in the notch groove 19 at the upper end of the holder 22, the rotation of the electrode 7 is prevented. .

  Thereafter, the handle 4 of the drilling machine 2 is returned to raise the dresser head 1, and the electrode 7 attached to the dresser base 5 is removed from the dresser base 5 together with the rotation stop member 24.

  As described above, in the present invention, the electrode 7 integrally formed with the shank portion 27 and the tip portion 28 is attached to the holder 22 of the dresser base 5 while preventing the rotation by the rotation preventing member 24. By attaching the electrode 7 to 5, operating the drilling machine 2, and operating the handle 4, anyone can easily cut the electrode 7 in which the shank portion 27 and the tip portion 28 are integrally formed.

  Further, since the rotation stop member 24 in which the tip portion 28 of the electrode 7 is inserted is fitted into the notch groove 19 provided at the upper end of the holder 22, the electrode 7 can be easily attached and detached.

DESCRIPTION OF SYMBOLS 1 Dresser head 2 Drilling machine 3 Drill mounting part 4 Handle 5 Dresser base 6 Table 7 Electrode 8 Mounting shaft part 9 Hole part 10 Cylindrical main body 12 Cutter 13 Insertion hole 15 Mounting plate 16 Square columnar main body 19 Notch part 21 Insertion hole 22 Holder 23 Through-hole 24 Anti-rotation member 27 Shank part 28 Tip part

Claims (2)

    A dresser head with a cutter blade installed in the hole with the lower end open is attached to the drill mounting part of the drilling machine, and a dresser base with electrodes attached and detached is fixed on the table of the drilling machine below the dresser head. In the drilling machine type dresser device that rotates the dresser head by operating the handle and moves the dresser head up and down by operating the handle of the drilling machine, an electrode in which the shank part and the chip part are integrally formed on the holder of the dresser base, A drilling machine type dresser device characterized in that the rotation preventing member is used to prevent rotation.     2. The drilling machine dresser device according to claim 1, wherein a rotation stopper member having an electrode tip portion inserted therein is fitted into a notch groove provided at an upper end of the holder.

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