JP3017523U - Sizing device stopper - Google Patents

Abstract

(57) [Abstract] [Purpose] Eliminates the escape of the work piece in the longitudinal direction that occurs when cutting the work piece in the other direction, prevents the stopper from shifting its position, and facilitates removal of the work piece after cutting. To be able to. A stopper 3 of a sizing device 1 that is fixed to a linear guide rail 2 and contacts the tip of a workpiece 21 guided by the guide rail 2 to position the workpiece 21 A rear end of a movable piece 8 having an abutting surface 15 for abutting against the workpiece 21 is attached to the front of the stopper body 7 so as to be rotatable in the same direction as the longitudinal direction of the guide rail 2. In addition, when the contact surface 15 is made to directly face the tip surface of the workpiece 21, the lower edge 17 of the contact surface 15
Is located above the axis O of the shaft attachment portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stopper for a sizing device used for sizing and positioning a long object mainly when cutting a workpiece made of a long metal object.

[0002]

[Prior art]

 A sizing device has been developed that positions a workpiece to a predetermined size when cutting the workpiece made of a long metal into a predetermined length. As this sizing device, conventionally, a sizing device has a structure in which a stopper which is movable in the length direction of the guide rail and can be fixed at a predetermined position is provided on a linear guide rail having a scale in the length direction. The device is known. This sizing device is provided at the position of the cutter of the cutting device, and when it is used, the stopper is set on the guide rail according to the scale attached to the guide rail according to the cutting length of the workpiece. It is moved to the position of and fixed by a lock screw.The work piece is placed on this guide rail, the tip of the work piece is abutted against the stopper, and the tool is moved downward in this state to move the work piece. The cutting is done.

[0003]

[Problems to be solved by the device]

 By cutting the workpiece using the above-mentioned sizing device, it becomes possible to easily perform the sizing of the workpiece, but there are the following problems. That is, when the work piece is cut, the work piece escapes in the longitudinal direction, and a large pressure is applied to the stopper abutting the tip of the work piece, and the stopper fixed by the lock screw is released. It will move. Therefore, at the time of the next cutting, the troublesome action of returning the position of the stopper to the original position is required.

Further, when the blade is returned after the cutting of the workpiece by using the sizing device, the cut workpiece is sandwiched between the stopper and the blade in a tight state. Since the blade is forcibly returned from this state by hydraulic pressure, the workpiece sandwiched between the blade and the stopper is lifted at the blade side and becomes slanted, pushing the stopper further backward. When the cut work piece is removed, the work piece is still strongly sandwiched between the tool and the stopper when the cut work piece is taken out, and the work piece remains as it is. It may be necessary to loosen the stopper and move it backward without taking it out.

In view of the above points, the present invention prevents escape of the work piece in the longitudinal direction when cutting the work piece in the other direction to prevent the position of the stopper from deviating, and at the same time, cut the work piece after cutting. The stopper of the sizing device is provided for the purpose of facilitating the removal.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is a stopper of a sizing device which is fixed to a linear guide rail and abuts on the tip of the workpiece guided by the guide rail to position the workpiece. The rear end of the movable piece, which has a contact surface for contacting the work piece at its tip, is rotatably attached to the front of the stopper body in the same direction as the longitudinal direction of the guide rail. The lower edge of the contact surface is located above the axis of the shaft attachment portion when the contact surface is directly opposed to the tip surface of the workpiece.

[0007]

[Action]

 According to the present invention, the front end of the stopper body has a rear end portion of a movable piece having an abutment surface for abutting against a workpiece at the tip end thereof, and is pivotally mounted in the same direction as the longitudinal direction of the guide rail. Since the lower edge of the contact surface is positioned above the shaft center of the shaft attachment when the contact surface is directly opposed to the tip surface of the workpiece, the work object is placed on the guide rail. When the work piece is cut in this state by abutting its tip against the contact surface of the movable piece that is axially attached to the stopper body, the movable piece that receives a pressing force due to the escape in the longitudinal direction caused by the cutting It pivots upward about the axis of the shaft attachment part and escapes from the pressing of the work piece.

[0008]

Embodiments The present invention will be described in detail below based on embodiments shown in the drawings. In the drawing, reference numeral 1 is a sizing device, which comprises a linear guide rail 2 and a positioning stopper 3 fixed to the guide rail 2.

The guide rail 2 has a shape in which a workpiece is placed and its directionality is regulated. In this embodiment, the guide rail 2 used when the workpiece is an angle member is shown, and the guide surface 4 is formed at the same angle as that of the angle member. On this guide surface 4, one end in the longitudinal direction of the guide rail 2 is used as a reference end 5, and a scale 6 indicating the length in the longitudinal direction from the reference end 5 is provided.

The stopper 3 fixed to the guide rail 2 includes a stopper body 7 movably attached in the longitudinal direction of the guide rail 2 and a movable piece 8 rotatably attached to the front portion of the stopper body 7. It consists of and. The bottom surface of the stopper body 7 is a sliding contact surface 9 slidably contacting the guide surface 4 of the guide rail 2.

Both side edges of the stopper body 7 are respectively folded back outward, and guide grooves 11 are formed between the folding piece 10 and the sliding contact surface 9 for slidably engaging both side ends of the guide rail 2. Has been done. The folding piece 10 is provided with a lock screw 12 for fixing the stopper body 7 to the guide rail 2 by tightening the end portion of the guide rail 2 engaged with the guide groove 11. Reference numeral 13 is a tightening bolt, and 14 is a handle for turning the tightening bolt 13.

The movable piece 8 rotatably attached to the front of the stopper body 7 has a contact surface 15 at its tip, which comes into contact with the tip of the workpiece placed on the guide rail 2. Has been done. The contact surface 15 is a surface orthogonal to the longitudinal direction of the guide rail 2. The rear end portion of the movable piece 8 is rotatably attached to the front portion of the stopper body 7 by a shaft 16 orthogonal to the longitudinal direction of the guide rail 2. It is rotatable in the same direction as the direction. In this embodiment, a spring pin is used as the shaft 16. The positional relationship between the contact surface 15 and the shaft 16 is such that when the contact surface 15 is directly opposed to the tip surface of the workpiece on the guide rail 2, the lower edge 17 of the contact surface 15 is Is set above the axis O of the shaft 16.

Further, the movable piece 8 is formed with a locking portion 19 that abuts on the front end 18 of the stopper body 7 so that the movable piece 8 does not rotate upward more than a predetermined amount when the movable piece 8 rotates upward. ing. When the movable piece 8 is pressed by the escape of the work piece generated when the work piece is cut, which will be described later, the locking portion 19 has sufficient rotation to escape the press and the release of the press force is released. After that, it is set so as to come into contact with the tip end 18 of the stopper body 7 within a range in which it rotates downward due to its own weight and returns to its original position.

Next, a usage example of the above embodiment will be described. When the sizing device 1 is attached to the cutting device 20 attached to a hydraulically driven machine tool (not shown), the guide rail 2 is aligned with the feeding direction of the workpiece 21, and the reference end 5 of the guide rail 2 is attached. It is performed by fixing the position of the cutting tool of the cutting device 20.

In this way, the stopper 3 that is movably attached to the guide rail 2 of the sizing device 1 attached to the cutting device 20 is operated to move the stopper 3 in a direction facing the front end surface of the workpiece 21. Align the contact surface 15 of the movable piece 8 at the position corresponding to the cutting length of the workpiece 21 out of the scale 6 shown on the guide surface 4 and operate the lock screw 12 The stopper body 7 is fixed to the guide rail 2. As a result, the length between the blade of the cutting device 20 and the contact surface 15 of the movable piece 8 is set as the length for cutting the workpiece 21.

After fixing the stopper 3 of the sizing device 1 at a predetermined position in this manner, the workpiece 21 is placed on the guide rail 2 and the tip end surface of the workpiece 21 contacts the contact surface of the movable piece 8 of the stopper 3. The workpiece 21 is brought into contact with the workpiece 15, and the blade 21 is moved in this state to cut the workpiece 21. As a result, the work piece 21 is cut into a predetermined length.

At this time, the cut work piece 21 has an escape in the longitudinal direction, and the escape of the work piece 21 causes the stopper 3 to be pressed rearward, but the tip surface of the work piece 21. Since the lower edge of the contact surface 15 of the movable piece 8 that is in contact with the upper side is above the axis O of the shaft 16 that pivotally mounts the movable piece 8 on the stopper body 7, The movable piece 8 that receives the pressing force pivots upward and escapes (FIG. 7).

As a result, no pressing force is applied to the stopper body 7 fixed to the guide rail 2 by the cut work piece 21, so that the cut work piece 21 escapes and moves rearward. There is no chance that the sizing position will go wrong. Further, in taking out the cut work piece 21, the work piece 21 is pulled up in the rotating direction of the movable piece 8, so that the work piece 21 can be taken out easily without loosening the stopper 3 and retracting it. After the workpiece 21 is taken out, the movable piece 8 rotates downward by its own weight and returns to the original position.

[0019]

[Effect of device]

 As described above, according to the stopper of the sizing device according to the present invention, the rear end of the movable piece having the contact surface for contacting the work piece at the front end is provided at the front part of the stopper main body along the longitudinal direction of the guide rail. The shaft is rotatably mounted in the same direction, and when the contact surface is directly faced to the tip surface of the workpiece, the lower edge of the contact surface is above the axis of the shaft mounting portion. Since the movable piece receives the pressing force due to the escape of the work piece that occurs when cutting the work piece that is brought into contact with the tip surface of the movable piece, the movable piece rotates upward. By avoiding the pressing of the lever, it is possible to prevent the sizing device of the stopper fixed to the guide rail from moving, and to fix the stopper without fixing the fixing position of the stopper once fixed to the sizing position. It is possible to perform continuous, constant-size cutting of workpieces, and to take out cut workpieces. Since the work piece is pulled up in the direction of rotation of the movable piece, it can be taken out easily without loosening the stopper, which improves the sizing accuracy of the cut work piece and improves work efficiency. it can.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a rear view of FIG.

FIG. 3 is an enlarged front view of the stopper shown in FIG.

FIG. 4 is a partially omitted plan view of FIG.

5 is a side view of FIG. 3 with some parts omitted.

FIG. 6 is an explanatory view showing an example of use of the present invention.

FIG. 7 is an explanatory diagram showing rotation of a movable piece.

[Explanation of symbols]

 1 Sizing device 2 Guide rail 3 Stopper 4 Guide surface 5 Reference end 6 Scale 7 Stopper body 8 Movable piece 9 Sliding contact surface 10 Folding piece 11 Guide groove 12 Lock screw 13 Tightening bolt 14 Handle 15 Contact surface 16 Shaft 17 Lower Edge 18 Tip 19 Locking Part 20 Cutting Device 21 Workpiece

Claims (1)

[Scope of utility model registration request] 1. A stopper of a sizing device, which is fixed to a linear guide rail and abuts on the tip of a workpiece guided by the guide rail to position the workpiece, the front of the stopper body. A rear end of a movable piece having a contact surface for contacting the work piece at its tip, is pivotally mounted in the same direction as the longitudinal direction of the guide rail,
The stopper of the sizing device, wherein the lower edge of the contact surface is located above the axis of the shaft attachment portion when the contact surface is directly opposed to the tip end surface of the workpiece. .