JPS5928811Y2 - Fixed size movement adjustment device for square chisel machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sizing movement adjustment device for an electric square chisel machine that is applied to cut holes, handle holes, etc. in wood.

Normally the handle hole is 30mm x 90mm, but the width of Chietsuka is 15 mm, 16.5 mm, 18 mm, 21 mm, 2 mm.
Since the width is narrow as it is 4 mm and 30 mm, if the handle hole size is not met, it is moved and the missing part is processed.

Conventionally, when moving a checker in the width direction, a fixed size feeding device has been implemented in which the movement is performed by a lever by a predetermined amount.

As a device for feeding, there is one that changes the feeding amount in stages,
There is a stepless method, and the former is used to adjust the feed screw when the width of the checker becomes narrow due to polishing, etc., or when machining a handle hole that is slightly larger or slightly smaller than a normal handle hole. Since there is the trouble of having to do this, the latter method is being implemented as a way to eliminate this trouble.

The present invention is a further improvement of the sizing movement adjustment device that allows the feed amount to be adjusted steplessly, and will be described in detail below with reference to the drawings.

First of all, as shown in FIGS. 1 and 2, the square chisel machine has a checker 1 and a main body portion 3 equipped with a drive motor 2, which are connected to two guide rods 5, 5 that are erected from a base 4. is supported so that it can move up and down via a spring 6.6 for holding it up.
The checker 1, which is driven and rotated by pushing down the main body part 3 against the repulsive force of the spring 6.6, processes a handle hole etc. in a piece of wood (not shown).

A through hole (not shown) is formed on one side of the base 4, and a through hole and a screw hole (not shown) are formed on the other side,
A guide bar 7 is passed through each of the through holes, a front vice plate 8 is slidably fitted to the front end of the guide bar 7, a vice holder 9 is fixed to the rear end of the guide bar 7, and a movable vice plate 10 is guided by the vice holder 9. This is a support for adjusting the movement of the bar 7 in the axial direction.

On the other hand, a feed screw 1 is fitted into the screw hole of the base 4 and is rotatably and axially movably supported by the front vise plate 8.
1 are screwed together, and by rotating the handle 12, the base 4, that is, the main body portion 3, can be moved back and forth along the guide bar 7.

In addition, the base 4 has an upper member 4a and a lower member 4b connected to guide bars 35, 35 that are slidable to the left and right. The upper member 4a supporting the portion 3 can be moved and adjusted in the left-right direction.

Next, the sizing movement amount adjusting device is configured as follows.

As shown in FIGS. 1 to 4, a base plate 13 having a substantially inverted side surface is fixed to the front vise plate 8, and the lower end of a quick lever 14 is attached to the base plate 13 by screws 15 so as to be able to move forward and backward. The upper end of the base plate 13 is formed into a fixed positioning plate 16, and a movable positioning plate 17 is superimposed and fixed to the fixed positioning plate 16 with elongated holes 18, 18 and screws 19, 19 so as to be movable and adjustable. It is.

The fixed positioning plate 16 and the movable positioning plate 17 are respectively provided with corresponding long grooves 20° and 21 which are open at one end and closed at the other end, and when fixed by overlapping each other, they have a long length in the front-rear direction. The holes 22 are formed, and the elongated holes 22 are opened by pressing the button shown in FIG.
length.

In other words, the distance between the two engaging recesses, which will be described later, is adjusted to be longer or shorter, and by selectively locking the quick lever 14 in the two engaging recesses, the main body portion 3
The fixed distance is to be moved and positioned.

In the sizing movement adjustment device configured as described above, the present invention is as follows.
Fixed and movable positioning plate 16 forming the long hole 22
, 17 opposite side edges 20a of the long grooves 20, 21,
21a are provided with engaging recesses 23, 24, respectively, and on the other hand, both sides of the quick lever 14 corresponding to the above-mentioned both engaging recesses 23, 24 have a band shape, and the lower side thereof is bent outwardly and downwardly. After that, the upper ends of the leaf springs 25 and 26, which were formed by bending the remaining ends vertically downward to give elasticity to themselves, are fixed symmetrically with screws 27, etc. The engaging recess 2 is provided so as to be in elastic contact with the opposing long edges of the elongated hole 22 against its own elastic force, and by rotating the quick lever 14 forward or backward, respectively.
3 or 24, and one of them is selectively engaged and positioned by elastic restoration.

Also, a pin 28 is provided on the lower surface side of the quick lever 14.
are symmetrically protruding, and are fitted into elongated holes 29 and 30 formed at the lower ends of the leaf springs 25 and 260, respectively, to prevent horizontal vibration of both leaf springs 25 and 26, and improve the positioning accuracy. I'm trying to improve.

Further, one end of a connector 31 is attached to the quick lever 14 with a set screw 32, and the other end of this connector 31 is fitted to the feed screw 11, and is pivoted to the feed screw 11 by a handle 12 and a ring (not shown). It is now impossible to move in any direction.

Thus, by rotating the quick lever 14 back and forth, the main body portion 3 can be moved back and forth without rotating the feed screw 11.

In addition, 33 in FIG. 3 is a scale provided on the fixed positioning plate 16.

In the above configuration, hole drilling is performed as follows.

First, place the aircraft on the wood W and fix it...Ndle 12
Rotate the feed screw 11 by rotating the quick lever 14,
For example, if you pull it backwards (towards the right) from the position shown in Figure 2,
With the leaf spring 25 engaged in the engagement recess 23, one end of the chain blade 1 is aligned with a marking line (not shown).

Next, rotate the quick lever 14 forward to align the other end of the chain blade 1 with another marking line, and in this state
The positioning plate 1 moves to a position where it engages with the other leaf spring 26.
7 with screws 19, 19.

When the quick lever 14 is rotated strongly at first, the leaf spring 25 or 26 is pressed by the corner of the engagement recess 23 or 24, so that the leaf spring 25 or 26 is elastically deformed inward against its own elastic force. It can be easily removed from the engagement recess.

After completing the above operations, position the quick lever 14 to the front and drill the first hole, then rotate the quick lever 14 to the rear and drill the second hole. can be processed.

When machining a long hole, move the machine using the left/right feed lever 14' while still pulling the quick lever 14 forward, and then operate the quick lever 14 in the same manner as described above to move the machine to the third position. By performing the fourth hole drilling, a hole larger than the biaxial dimension of the chain blade 1 can be machined.

As explained above, according to the sizing movement adjustment device for a square chisel machine according to the present invention, movement can be adjusted steplessly by changing the fixed position of the movable positioning plate 1γ with respect to the fixed positioning plate 16. Therefore, the chain blade 1 provided in the main body portion 3 can be easily rotated back and forth using only the quick lever 14 without being limited by the width or thick width of the chain blade 1.
Needless to say, it is possible to move and adjust a certain amount to a predetermined position, thereby making it possible to drill a hole of a desired width.Especially when the present invention is used, the fixed positioning plate 16 that is overlapped and fixed to form the elongated hole 22 and the movable Each long groove 20 of the positioning plate 17
Engagement recesses 23 and 24 are provided at opposite ends of opposite side edges 20a and 21a of the quick puller 14, and plate springs 25 and 26 are provided on both sides of the quick puller 14 so as to be able to elastically engage with the engagement recesses 23 and 24. Since the leaf springs 25 and 26 slide elastically on both opposite edges of the elongated hole 22, the quick lever 14 can be rotated smoothly without any play, and the two plates can be rotated smoothly. Due to the elastic action of the springs 25 and 26, it can be engaged with any of the engagement recesses 23 or 24 without wobbling, so positioning accuracy can be improved. 26 are directly engaged, the quick lever 14 can be easily removed from the engaging recesses 23 and 24 by simply pushing it in a straight line in the front and back direction without moving laterally. In addition, since both leaf springs 25 and 26 have the same shape, only -2 molds (punching molds, etc.) are needed to mold them, and they can be placed in symmetrical positions on both sides of the quick lever 14 at the same time. Since it can be fixed with screws or screws, it has the advantage of being extremely inexpensive to manufacture.

[Brief explanation of drawings]

Fig. 1 is a front view of a square chisel machine equipped with a sizing movement amount adjusting device according to the present invention, Fig. 2 is a side view of the square chisel machine, Fig. 3 is a plan view of the same device, and Fig. 4 is a It is a front view of the same device. 1... Chain blade, 3... Main body part, 8... Front vise plate, 13... Base plate, 14...
Quick lever 16...Fixed positioning plate, 1γ...
・Movement positioning plate, 20, 21...long groove, 20a, 2
1a--Opposite edge of long groove, 22--Long hole, 23,2
4... Engagement recess, 25, 26... Leaf spring.

Claims (1)

[Claims for Utility Model Registration] By rotating back and forth a quick lever 14 pivotally connected to the front vice plate 8, the main body portion 3 equipped with the checker 1 is moved back and forth, and the base plate 13 is fixed to the vice plate. on the top edge. A fixed positioning plate 16 and a movable positioning plate 17 each having corresponding long grooves 20 and 21 with one end open and the other end closed.
The quick lever is inserted into an elongated hole 22 formed by stacking and fixing the quick levers so as to be movable back and forth, and the quick lever is inserted into an engagement recess 23 provided on the side edge of the elongated hole.
24, wherein the engagement recess is located on opposite sides of each long groove forming the long hole of the fixed positioning plate and the movable positioning plate. Leaf springs 2526 are provided at opposite ends of the edges 20a and 21a, respectively, and leaf springs 2526, which are formed by bending the lower portion outward and downward to provide elasticity, are attached symmetrically to both sides of the quick lever, and are attached alternately with both of the engaging recesses. A sizing movement adjustment device for a square chisel machine, characterized in that it is configured to be able to be elastically fitted into a square chisel machine.