JPS6099537A - Clamper - Google Patents

Abstract

PURPOSE:To surely clamp a workpiece, by providing vertical V-grooves on the vertical clamping sides of both a clamping member, which can be slid on the oblique sliding surface of a support, and a fixed clamping member facing the former clamping member. CONSTITUTION:A fixed clamping member 1 has a clamping side 3 which is provided with a V-groove perpendicular to the bottom 2 of the clamping member and is also provided with anti-slipping horizontal grooves 22. Another clamping member 11, which has a similar clamping side 10 facing that 3 of the fixed clamping member 1, can be slid on a sliding slope 8 which is a portion of a support 5 and has an engaging part 14. A spring is provided on the bottom 9 of the clamping member 11. When the clamping member 11 is pushed downwards against the spring on the bottom 9 of the member by a securing bolt 18, the clamping side 10 of the member is moved along the sliding slope 8 so that the position of the clamping side is horizontally adjusted. As a result, a workpiece 20 is surely clamped by the clamping sides 3, 10.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clamping device that can easily and reliably clamp a workpiece such as a round or square material onto a table of a machine tool with simple operation.

Conventionally, in order to clamp a workpiece on a table of a machine tool, methods have been used in which the workpiece is directly fixed with bolts or clamped with a vise or the like that can be fixed on the table. However, in order to directly fix a workpiece with bolts, pre-processing such as drilling a hole in the workpiece is required, and in order to use the vise, the gravity of the vise itself is required. It has the disadvantage that it is very heavy and difficult to operate.Furthermore, when clamping the workpiece in a vise, the frame of the vise itself bends, causing the workpiece to float out of the vise when clamping the workpiece, and the angle may change. Heavy cutting becomes impossible because the clamping force becomes distorted or the clamping force is halved, and this phenomenon is particularly noticeable when the workpiece is a round material.

It was created in order to be able to easily and reliably clamp the workpiece, whether it is a square piece of wood or a fly.The gist of this is that the clamping surface is perpendicular to the bottom surface. a fixed clamping body having a 1δ sliding surface inclined at an acute angle with respect to the lower surface, a sliding surface parallel to the sliding movement of the support on one side, and a sliding surface parallel to the sliding movement of the support on one side, and a clamping body having a vertical clamping surface on the other side, and a cylindrical clamping part formed of a V-groove perpendicular to the lower surface is formed in the center of each clamping surface; The sliding surface of the clamping body can be pressed so as to slide downward on the sliding surface, and an engaging portion is provided between the sliding surfaces to prevent lateral displacement between each of the clamping surfaces. The fixed clamping body and the supporting body can be fixed at predetermined positions on the table of a machine tool with their respective lower surfaces facing each other.

Hereinafter, the present invention will be described in detail with reference to the drawings.

That is, the reference numeral 1 shown in the figure is a fixed clamping body, which is a rectangular parallelepiped with two clamping surfaces 3 perpendicular to the lower surface 2 facing each other. V perpendicular to
A cylindrical holding part 4 made of a groove is provided.

On the other hand, reference numeral 5 denotes a support body, and one side of a rectangular parallelepiped having the same height as the fixed clamping body 1 is cut off at 606 with respect to the lower surface 6 of the support body 1, for example, as a sliding surface 7 that is inclined at an acute angle. Form and compose. Also, in order to have a sliding surface 8 parallel to this sliding surface 7, one side of the rectangular parallelepiped is cut off at an angle of 120° to the lower surface 9, and the surface facing this sliding surface 8 is cut off to the lower surface 9. This clamping surface 10 is provided with a cylindrical clamping part 15 formed by a V-groove perpendicular to the lower surface 9, similar to the clamping surface 3, to form a clamping body 11. Therefore, if the lower surface 9 of this clamping body 11 and the lower surface 6 of the support body 5 are made parallel, the sliding surfaces 7.8 will be parallel to each other, and the clamping surface 10 will be perpendicular to the lower surface 6 of the support body 5. In this state, the sliding surfaces 7 and 8 are brought into contact with each other in order to slide, but at that time, the sliding surfaces 7°8 have a protrusion 12 on one side and a groove 1 on the other side.
3 to form an engaging part 14, and this engaging part 14
By forming the sliding surfaces 7 and 8, the sliding surfaces 7 and 8 are engaged with each other in such a manner that although they move vertically, they do not shift laterally.

Thus, the fixed clamping body 1 and the support body 5 are brought into contact with the sliding surfaces 7.8 as described above, and the clamping surface 3 of the fixed clamping body 1 and the clamping part 10 of the clamping body 11 are opposed to each other. Insert the T-shaped fixture 17 into the T-slot 21 provided in the table 16 of the machine tool so that the
The fixed clamping body 1 and the supporting body 5 are fixed in a predetermined position on the restable table 16 by tightening the fixing bolts 18.

At this time, a leaf spring 19 is disposed between the clamping body 11 and the table 16 to constantly push the clamping body 11 upward, and the clamping body 11 is connected to the T-shaped fixture 17 and the fixing bolt 18.
It is formed to be pushed downward by the

Next we will explain its use.

That is, as shown in FIG. 3, the fixed clamping body 1 is first fixed in a predetermined position on the table 16 of the machine tool.
One surface of a rectangular parallelepiped workpiece 20 is brought into contact with the clamping surface 3 of the fixed clamping body 1. Then, with the clamping surface 10 of the clamping body 11 in contact with the surface facing the - surface of the workpiece 20, the sliding surfaces 7.8 are slidably brought into contact with each other, and the The support body 5 is fixed on the table 16 in this state.

Therefore, in order to push down the support body 11, the fixing bolt 1
8, the clamping body 11 is pushed downward and at the same time is pushed toward the workpiece 20 by sliding between the sliding surfaces 7 and 8, and the workpiece 20 is clamped by the clamping surfaces 3 and 10. It can be clamped onto the table 16. Therefore, since the clamping body 11 is pressed downward and in the direction of the workpiece 20, the workpiece 20 does not float above the table 16, and the clamping body 11 and the support body 5 are prevented from shifting laterally by the engaging part 14. Since it is prevented, it can be clamped securely.

When removing the workpiece 20 from the table 16, loosen the fixing bolt 18 that presses down the clamping body 1, the clamping body 11 is pushed upward by the leaf spring 19, and the workpiece 20 is It is released from the pressure horns caused by the clamping rest 11 and can be removed without being removed.

If the workpiece 20 is a cylinder, the workpiece can be reliably machined by holding the curved surface of the cylinder with two points of contact between the cylinder holding parts 4° 15 of the holding surfaces 3 and 10, as shown in FIG. Things 20
It can be fixed in the upright position, and the plate can be fixed in the same way as described above.
It is meant to be clamped.

In addition, 22 is a horizontal groove for non-slip, and 23 is a plate spring 19 held by the holding body 1.
1 is a fixing screw, and 24 is a guide protrusion that has a width that can be inserted into the T-slot 21 and serves as a guide when the fixed clamp holder 1 is fixed on the T-slot 21. .

Since the present invention is constructed as described above, the workpiece 20, such as a round or square piece, can be easily and reliably clamped onto the table 16 of a machine tool with a simple operation.

A support body 5 having an inclined sliding surface 7, a sliding surface 8 parallel to the sliding surface 7 of the support body 5 on one side, and a sandwiching surface perpendicular to the lower surface 6 of the support body 5. The clamping body 1 and the supporting body 5 are fixed at a predetermined position on the table 16 of the machine tool so that the clamping surfaces 3 and 10 face each other, and the clamping body 1 and the support body 5 are fixed at a predetermined position on the table 16 of the machine tool. , 6, and grip the sliding surface 7 of the support 5 with the clamping body 11.
By making the sliding surface 8 pushable so as to slide downward, the rectangular parallelepiped workpiece 20 can be easily clamped by the simple operation as described above.

By providing the engaging portions 14 on the sliding surfaces 7 and 8 to prevent lateral slippage, when the clamping body 11 is pressed from above with the fixing bolts 18, etc., the problem arises from the imbalance in the way the force is applied. Since lateral displacement is prevented, the workpiece 20 can be reliably clamped without shifting.

Further, by forming a cylindrical clamping part consisting of a groove perpendicular to each of the lower surfaces 2.6 at the center of each clamping surface 3.10, the workpiece 20 such as a square timber can be held at the clamping surface 3.10. .10
Since the workpiece 20 such as a round material can be clamped on a curved surface by two-point contact by the V-groove, the round material can be reliably clamped in an upright state.

As explained above, according to the present invention, both square and round timbers can be easily clamped to fruit with a very simple operation, and furthermore, the number of parts is small and it can be provided at low cost. It is something that is effective.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Figure 1 is a perspective view of a square piece of material clamped, Figure 2 is a perspective view of a round piece of wood clamped, and Figure 3 is a front cross-sectional view of the clamped state. be. 1... Fixed clamping body, 2... Lower surface, 3... Clamping surface,
4...Cylindrical holding part, 5...Support body, 6...Bottom surface,
7...Sliding surface, 8...Sliding surface, 9...Bottom surface, 1o
... holding part, 11 ... holding body, 12 ... convex strip, 1
3... Concave groove, 14... Engaging portion, 15... Cylindrical clamping portion, 16... Table, 17... T-shaped fixture, 18
... Fixed pole 1-119 ... Leaf spring, 2° ... Workpiece, 21 ... T groove.

Claims (1)

[Claims] 1. A fixed clamping body that has a clamping surface perpendicular to the bottom surface, a support that has a sliding movement that is inclined at an acute angle to the bottom surface, and a sliding movement that is parallel to the sliding surface of the support. On the one hand,
and a clamping body having a clamping surface perpendicular to the lower surface of the support on the other hand, and in the center of each clamping surface, there is a cylinder formed by a groove perpendicular to the lower surface. A clamping portion is formed, and the sliding surface of the clamping body can be pressed so as to slide downward on the sliding surface of the support body, and an engaging portion is provided between the sliding surfaces to prevent lateral slippage. A clamping device characterized in that the fixed clamping body and the supporting body can be fixed at predetermined positions on a table of a machine tool with their respective lower surfaces so that the respective clamping surfaces face each other.