JPH0533288Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a vice device for a square chisel machine.

[Conventional technology]

Conventionally, a flat vise is known as a vise device for a square chisel machine. (Refer to Utility Model Publication No. 59-25606) [Problems to be solved by the invention] Although conventional flat vise devices can clamp square timbers, it is difficult to clamp irregularly shaped workpieces such as logs. Therefore, when machining square holes in irregularly shaped workpieces, the holes are first drilled with a hand drill and then finished into square holes with a hand chisel. but,
In this case, since the accuracy of machining square holes largely depends on the skill of the operator, there were problems such as not only the machining could only be done by an experienced person, but also the work efficiency was poor.

The present invention was developed in view of the problems of the conventional technology, and its purpose is to facilitate the centering of irregularly shaped workpieces such as square timbers and logs. To provide a vice device for a square chisel machine which allows any person to easily machine a square hole without requiring any skill.

[Means to solve problems]

In order to achieve the above object, the vise device of the square chisel machine according to the present invention has a chain vise part and a chain hook at both the front and rear ends of a pair of front and rear guide bars that cover the square chisel machine so that it can slide in the left and right directions. A bed having a cutting claw part is fixed, and a pair of adjustment screws having a non-slip function are screwed so as to be able to move forward and backward onto the movement line of the square chisel on the bed.

[Effect]

Place the bed of the vise device on the workpiece, align the center mark of the bed with the ink line, use the non-slip adjustment screw to align the workpiece in the longitudinal direction and the square chisel machine vertically, and then set the chain. Hook the chain pin at the free end of the
Rotate the vise handle on the chain vise part to tension the chain and fix the workpiece. As a result, the workpiece is fixed with the ink line aligned with the movement line of the square chisel due to the anti-slip adjustment screw, and misalignment is prevented.

After fixing the workpiece in this manner, by operating the feed handle and lowering the square chisel machine, a square hole can be machined using the cutting tool.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, a pair of left and right guide bars 1, 1' are provided in parallel.

A base 3 of a square chisel machine 2 is mounted on the pair of front and rear guide bars 1 and 1', and the square chisel machine 2 operates the front and rear guide bars 1 and 1 by operating the front and rear feed handle 4.
1' in the front-back direction (left-right direction in Figure 2)
is supported slidably in parallel to.

The square chisel machine 2 is composed of a motor (not shown), a reduction gear, a spindle section, an elevating feed section, a cutter section 5, a feed handle 6, etc.
The square chisel machine 2 is supported so as to be movable up and down via compression springs 8 and 8' for applying a lifting force to lifting guide columns 7 and 7' which are suspended in parallel from above the base 3. There is.

Bets 9, 9' are fixed to both the front and rear sides of the front and rear guide bars 1, 1', and the center line of the cutter part 5 of the square chisel machine 2, that is, the corner A center mark 11 indicating the movement line a of the chisel machine 2 is provided.

Further, the beds 9, 9' are provided with a pair of adjustment screws 12 having spike-shaped anti-slip tips 12a.
are screwed into screw holes 9a, 9a extending perpendicularly through the beds 9, 9' in line with the movement line a. This adjustment screw 12 is capable of being screwed forward and backward along the movement line a, and the anti-slip 12a at the tip is aligned with the black line 29 shown in FIGS. 3A and 3B on the workpiece 15. By biting into the surface of the workpiece 15, it is provided to facilitate alignment of ink lines and vertical alignment of the workpiece 15 in the longitudinal direction, and to prevent misalignment.

In the illustrated example, in addition to the adjustment screw 12, there are two adjustment screws 1 having anti-slip portions 13a and 14a at their tips.
3, 14 to both the left and right sides of the bets 9, 9',
It is threaded through the workpiece 15 so that it can move forward and backward in the axial direction at a predetermined angle so as to face the center O of the workpiece 15.

By providing the adjustment screws 13 and 14 in this manner, it is possible to conveniently align the workpiece in the radial direction and the square chisel 2 vertically.

Further, a chain vise portion 16 and a claw portion 17 for hooking the chain are provided at one end and the other end in the left-right direction of both the bets 9, 9'.

The chain vise part 16 includes a horizontal shaft 18 that is rotatably installed, a vice screw 19 that rotatably passes through the horizontal shaft 18 while being prevented from moving in the axial direction, and an outer end of the vice screw 19. color 2
0, and a chain pull nut 22 that is screwed into the threaded part 19a of the vise screw 19 so that it can move forward and backward while being prevented from rotating. A chain pin 23a at the free end of the chain 23 is connected to the nut 22.
. . . is provided so as to be freely hooked on and removed from the claw portion 17 according to the dimensions of the workpiece 15.

As shown in the illustrated example, the chain vice part 16 and the claw part 17 have vice arms 25, 25' pivotally attached to the ends of the front and rear guide bars 1, 1' so as to be rotatable in the radial direction of the workpiece 15. It may also be provided on the arms 25, 25'.

In this case, the tension of the chain 23 causes the vise arms 25, 25' to move inside, that is, to the workpiece 1.
The anti-slip 2 provided on the inner surface of the lower end rotates to the 5 side.
4 and 24' are provided to press and fix both sides of the workpiece 15.

In addition, in Fig. 1, 26, 26' are stands,
Reference numerals 27 and 27' indicate coil springs for rotating and biasing the vise arms 25 and 25' upward, and 9b is a window cut out on the lower end surface of the bed 9 and 9' to prevent the tip of the adjustment screw 12 from slipping 12a. It is provided to make it easier to see from the outside.

In FIG. 2, 28 and 28' indicate handles, in FIGS. 3A and 3B, 29 indicates a black line, and in FIGS. 3A, 4, 5, and 6, 29a indicates a square hole.

[Effect of idea]

Since the present invention is constructed as described above,
When fixing the workpiece 15 by the chain 23 and chain vise part 16, an adjustment screw 1 having a non-slip 12a provided on the movement line a of the square chisel 2
2 to the black line 29, the workpiece 15 is aligned with the black line 29, and the workpiece 15 and the square chisel 2 are aligned.
Because it is easy to vertically draw out the workpiece 15, it is possible to easily cut the square hole 2 of the workpiece 15 of irregularly shaped workpieces 15, such as square timbers or logs.
9a machining can be done by square chisel machine 2 without the need of an expert.
This process can be easily carried out by any number of people using a machine, and has the effect of improving the machining accuracy of the square hole 29a.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the vise device of a square chisel machine according to the present invention, Fig. 2 is an enlarged longitudinal sectional side view of a part of the same embodiment, and Fig. 3 A and B are examples of workpieces. A plan view and an end view, FIGS. 4 and 5,
Figure 6 shows - line, - line in Figure 3 A,
- is a cross-sectional view taken along each arrow. 1, 1'... Front and rear guide bars, 2... Square chisel machine,
9, 9'...Bet, 12...Adjustment screw, 12a
... Anti-slip, 16 ... Chain vise part, 17
...Claw portion, 23...Chain, a...Movement line of square chisel machine.

Claims (1)

[Scope of utility model registration request] A pair of left and right front and rear guide bars 1, 1' are provided on the exterior of the square chisel machine 2 so that the square chisel machine 2 can slide in the front and rear direction. The front and rear ends of the pair of guide bars 1, 1' are provided with a chain vice 16 and a chain hook claw 1.
7, and a pair of adjustment screws 12 having anti-slip devices 12a are screwed so as to be movable back and forth along the line of movement a of the corner chisel of the bed.