JP6986861B2 - Work support member - Google Patents

Description

The present invention relates to a work support member used in a grinding machine.

Conventionally, when grinding a work with a grinding machine, a work support member that supports the outer peripheral surface of the work clamped to a chuck or the like has been used. As shown in FIG. 8, in the work support member according to the prior art, a V-groove is formed at one end of the plate-shaped base member 70, and the support member 80 is brazed to the side surface of the V-groove. Generally, the base member 70 is made of a heat-treated material having a high hardness, and a cemented carbide material having a higher hardness is used for the bearing member 80.

The bearing member 80 needs to be replaced because the contact surface with the work wears after a certain period of use. At the time of replacement, the base member 70 is heated together with the bearing member 80, the brazed bearing member 80 is removed from the base member 70, and a new bearing member 80 is brazed again, or is fixed to the base member 70. The bearing member 80 must be reground or the entire work support member must be replaced. The bearing member 80 is a work that cannot be easily replaced and requires time, labor, and cost. In particular, the bearing member 80 needs to be attached to the base member 70 with high accuracy, brazing of the bearing member 80 requires a lot of man-hours, and polishing and adjustment after attachment also require time and skill. .. Re-polishing the bearing member 80 also requires time and skill, and has a problem of high cost.

Further, the entire work support member may be coated in order to increase the durability, but as described above, since the base member 70 and the bearing member 80 are formed of different materials, their thermal characteristics are different. In addition, the heat treatment at the time of coating must also give due consideration to the difference in materials, and therefore the coating materials and methods are also restricted. In particular, there is a problem that heat treatment cannot be performed or is very difficult after brazing.

An object of the present invention is to solve the problems of the prior art, and an object of the present invention is to provide a work support member used in a grinding machine that can be easily attached and detached and can be manufactured with high accuracy.

In order to achieve the above object, according to the present invention, in the work support member used in the grinding machine and supporting the outer peripheral surface of the work clamped to the work gripping device, the first and second Vs are attached to one end. Provided is a work support member including a plate-shaped base member having a character-shaped groove portion and a support member arranged in each of the first and second V-shaped grooves and detachably fixed to the base member. To.

According to the present invention, since the bearing member is detachably fixed to the base member, when the bearing member is worn, the bearing member can be changed in direction and replaced with a new bearing member easily. Can be done. Further, since only the bearing member can be processed, the bearing member can be processed by a highly accurate and highly reproducible processing method, and can be processed with high reproducibility. Further, since only the bearing member can be coated, the bearing member can be coated with various materials and coating conditions with high accuracy.

It is a perspective view of the work support member by 1st Embodiment of this invention. It is a front view of the work support member of FIG. It is the same perspective view as FIG. 1 shown together with the supported work. It is a perspective view of a bearing member. It is a perspective view of the work support member by the 2nd Embodiment of this invention. It is a front view of the work support member of FIG. It is the same perspective view as FIG. 5 shown together with the supported work. It is a perspective view of the work support member by the prior art.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
Referring to FIGS. 1 to 3, the work support member according to the first embodiment is composed of a plate-shaped base member 10, and the first and second support surfaces 12, 14 and the third and third are at one end. Support surfaces 16 and 18 of No. 4 are formed. The first and second support surfaces 12 and 14 are formed along a plane that converges to each other at an angle of 45 ° outward along the center line O of the base member 10. The third and fourth support surfaces 16 and 18 are formed along a plane extending outward along the center line O at a predetermined angle, for example, an angle of 45 °.

In this way, by the first to fourth support surfaces, one end of the base member 10 has one central protrusion protruding in a large chevron shape in the center and two small chevron protrusions on both sides of the central protrusion. It is formed in a substantially W shape having two outer protrusions. Thus, between the central protrusion and the two outer protrusions, a first V-groove composed of the first and third support surfaces 12 and 16 and a second V-groove composed of the second and fourth support surfaces 14 and 18. V-groove is formed.

Further, a relief groove 20 is formed between the first and third support surfaces 12 and 16 at the bottom of the first V groove, and the second and fourth support surfaces 14 and 18 are formed at the bottom of the second V groove. An escape groove 22 is formed between the two. Further, a relief groove 24 is formed between the first and second support surfaces 12 and 14 at one end of the central protrusion. Support members 30 are arranged in the first and second grooves, and are detachably fixed to the base member 10 by bolts or screws 40.

Referring to FIG. 4, the bearing member 30 is a rectangular or square prismatic or rectangular parallelepiped member, and a through hole 32 for passing a bolt or a screw 40 is formed in a central portion thereof. The bearing member 30 extends between the two end faces 34 as the first bearing surface through which the through hole 32 opens and the two end faces 34 as the second bearing surface and connects to the two end faces 34. It has one side surface 36.

In this embodiment, as shown in FIG. 3, one bearing member 30 is arranged in each of the first and second V-grooves. In the first V-groove, in the bearing member 30, one of the end faces 34 as the first bearing surface abuts on the first support surface 12, and one of the side surfaces 36 as the second bearing surface is the first. 3 is arranged so as to be in contact with the support surface 16. Similarly, in the second V-groove, in the support member 30, one of the end faces 34 as the first support surface abuts on the second support surface 14, and the side surface 36 as the second support surface One is arranged so as to abut on the fourth support surface 18. In this embodiment, the work W is supported between the side surfaces 36 on the opposite side of the side surfaces 36 that abut on the third and fourth support surfaces 16 and 18, respectively, of the two bearing members 30.

Next, a second embodiment of the present invention will be described with reference to FIGS. 5 to 8.
The work support member according to the second embodiment includes a plate-shaped base member 50, and has first and second support surfaces 52 and 54 and third and fourth support surfaces 56 and 58 at one end thereof. Is formed. The first and second support surfaces 52 and 54 are formed along a plane that expands outward at an angle of 45 ° along the center line O of the base member 50. The third and fourth support surfaces 56, 58 are formed along a plane that converges outward at an angle of 45 ° along the center line O.

Thus, due to the first to fourth support surfaces, one end of the base member 50 has one central protrusion protruding in a small chevron shape in the center and a large chevron protrusion on both sides of the central protrusion. It is formed in a substantially W shape having two outer protrusions. Thus, between the central protrusion and the two outer protrusions, a first V-groove consisting of first and third support surfaces 52, 56 and a second consisting of second and fourth support surfaces 54, 58. V-groove is formed.

Further, a relief groove 60 is formed between the first and third support surfaces 52 and 56 at the bottom of the first V groove, and the second and fourth support surfaces 54 and 58 are formed at the bottom of the second V groove. A relief groove 62 is formed between the two. Further, a relief groove 24 is formed between the first and second support surfaces 52 and 54 at one end of the central protrusion. Support members 30 are arranged in the first and second grooves, and are detachably fixed to the base member 50 by bolts or screws 40.

In this embodiment, as shown in FIG. 7, one bearing member 30 is arranged in each of the first and second V-grooves. In the first V-groove, in the bearing member 30, one of the end faces 34 as the first bearing surface abuts on the first support surface 52, and one of the side surfaces 36 as the second bearing surface is the first. 3 is arranged so as to be in contact with the support surface 56. Similarly, in the second V-groove, in the bearing member 30, one of the end faces 34 as the first bearing surface abuts on the second support surface 54, and the side surface 36 as the second bearing surface One is arranged so as to abut on the fourth support surface 58. In the present embodiment, the work W is supported between the end faces 34 on the opposite side of the end faces 34 that abut on the first and second support faces 52, 54 of the two bearing members 30, respectively.

As can be seen from FIGS. 3 and 7, the work support member according to the second embodiment is advantageous for supporting the work W having a larger diameter than the work support member according to the first embodiment.

In the above-described embodiment, the bearing member 30 is detachably fixed to the base members 10 and 50, so that when the bearing surface 34 or 36 is worn, the bearing member 30 is supported by another bearing surface. The orientation of the 30 can be changed and changed, or the bearing member 30 can be easily replaced with a new bearing member 30. Further, since only the bearing member 30 can be processed, the bearing member 30 can be processed by a processing method with high accuracy and high reproducibility, and can be processed with high reproducibility. Further, since only the bearing member 30 can be coated, the bearing member 30 can be coated with various materials and coating conditions with high accuracy.

10 Base member 12 1st support surface 14 2nd support surface 16 3rd support surface 18 4th support surface 20 Relief groove 22 Relief groove 24 Relief groove 30 Bearing member 32 Through hole 34 End face 36 Side surface 40 Screw 50 Base Member 52 First support surface 54 Second support surface 56 Third support surface 58 Fourth support surface 60 Relief groove 62 Relief groove 70 Base member 80 Bearing member

Claims (6)

In the work support member that supports the side surface of the work used in the grinding machine and clamped to the work gripping device.
A plate-shaped base member having first and second V-shaped grooves at one end,
Each of the first and second V-shaped grooves is provided with a bearing member that is detachably fixed to the base member.
The first V-shaped groove is formed from the first and third support surfaces, the second V-shaped groove is formed from the second and fourth support surfaces, and the base member is the first. When the third between the support surface, and the second and fourth workpiece support members that are grooves formed escape between the supporting surface. The bearing member is a square columnar having a pair of parallel facing end faces, a through hole opened in each of the end faces, and a side surface extending between the pair of end faces and connected to the pair of end faces. The work support member according to claim 1, which comprises the members of the above. One bearing member is arranged in the first V-shaped groove so that one of the pair of end faces abuts on the first support surface and one side surface abuts on the third support surface. , The edge between the end face that abuts on the first support surface and the one side surface that abuts on the third support surface is received in the relief groove.
One bearing member is arranged in the second V-shaped groove such that one of the pair of end faces abuts on the second support surface and one side surface abuts on the fourth support surface. 2. The work support member according to claim 2, wherein the edge portion between the end surface that abuts on the second support surface and the one side surface that abuts on the fourth support surface is received in the relief groove. .. The first and second support surfaces are formed so as to converge with each other in a direction away from the base member, and the third and fourth support surfaces expand with each other in a direction away from the base member. One central protrusion having a large chevron protrusion in the center and two small chevron protrusions on both sides of the central protrusion. The work support member according to claim 1 or 2, which is formed in a substantially W shape. The work support member according to claim 4, further comprising a relief groove formed between the first and second support surfaces. The first and second support surfaces are formed so as to expand each other in a direction away from the base member, and the third and fourth support surfaces converge with each other in a direction away from the base member. The end of the base member is formed so as to have one central protrusion having a small chevron protrusion in the center and two outer protrusions having a large chevron protrusion on both sides of the central protrusion. The work support member according to claim 1 or 2, which is formed in a substantially W shape.

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