JPH079294A - Workpiece setting ruler in edge preparation machine - Google Patents

Abstract

PURPOSE:To provide a workpiece setting ruler of simple constitution without mechanical stress in operation. CONSTITUTION:A holding body 24 slidable in the same direction as the feed direction of a workpiece W is fitted to one end of a machining head, and an abutting roller 25 directed to the workpiece W is fitted to the holding body 24. A spring member 31 is engaged with the holding body 24 to energize the abutting roller 25 in the direction opposite to the sliding direction. The abutting roller 25 is set at a specific position in an energized state. The abutting roller 25 also corresponds to an end of the workpiece W when a machining head is positioned at a traveling base point.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work set ruler in a groove processing machine for setting a supplied H-section steel at a predetermined processing position. When H-section steel is used in a steel frame joint, this steel material is subjected to groove forming and scalloping for the purpose of improving welding quality and workability. In short, as shown in FIG. 4, notches Fa and Fb (scalloped) having arcuate depths at both joints of both side flanges a and b of the H-shaped steel W (hereinafter, simply referred to as a work W) and the web c are formed. ) Is formed, and straight route surfaces Ra and Rb and sloped chamfered surfaces Va and V are formed at the ends of both side flanges a and b.
b (groove processing) is formed. As a processing machine for performing the above groove processing,
From the automatic type where the work is processed at both ends at the same time, and the loading and unloading is done automatically by a dedicated conveyor, the work at the two positions is divided into two parts and the transfer is performed artificially. There are various types of manual type, but the latter type is widely used in small factories for price reasons. FIG. 5 shows the configuration of this manual type groove processing machine.
Shown in. In the figure, 40 is a pair of left and right vise pieces 41,
Clamping means W consisting of 41 is a work 42 clamped with flanges a and b horizontal.
1 is a rotating arm 43 arranged in a pendant shape to form a rotating arm 4
The stopper ruler 44 attached to the bottom of 2 is rail 4
The machining head 46 which is guided by 5 runs on the machining head 44. The cutter 47 is an operation piece of the stopper ruler 43 attached to the machining head 44. The stopper ruler 43 is a cutter 4
It is located between the vise pieces 41, 41 in the traveling route of 6, and contacts the tip of the supplied work W to regulate the feeding position. Then, the work W can be set at a predetermined position by performing the clamping operation while ensuring this position. When the machining head 44 travels in this clamped state, the workpiece W is cut by the cutter 46.
A predetermined groove processing is performed by. In the above, the operating piece 47 moves in the same direction as the machining head 44 travels, and the stopper ruler 43
Abut. At this time, since the rotating arm 42 rotates in the retracted direction, the stopper ruler 43 is released from the traveling path of the cutter 46. The above-mentioned contact state is maintained during cutting, so that the groove processing can be performed without any trouble. [Problem to be Solved by the Invention] Stopper ruler 43
Performs the retracting operation while contacting the end surface (flange surface) of the work W. Here, if the end surface of the clamped work W is accurately projected, the retracting operation is smooth. However, when the work W is tilted, the rotating arm 42
Operates by force, which causes mechanical stress. Further, although the rotating arm has a long free length because it is retracted from the traveling path of the cutter, it requires extra rigidity due to the above-mentioned stress, and there is a problem that the structure is complicated and large in size as a whole. . The present invention has been made by paying attention to the above-mentioned conventional problems, and eliminates the occurrence of mechanical stress,
It is intended to provide a work set ruler for a groove processing machine that can simplify the configuration. In order to achieve the above object, a work set ruler according to the present invention is configured as follows. That is, the main point is
A contact roller slidable in the H-shaped steel supply direction is attached to one end of the machining head, and the contact roller is urged by a spring member in a direction opposite to the sliding direction, and
The contact roller is arranged so as to correspond to the end of the H-shaped steel when the processing head is located on the side of the traveling base point. The contact roller has a fixed position secured by the spring member and regulates the tip position of the supplied work. This contact roller rolls while contacting the end of the work, and when the end is inclined and clamped,
The spring member exerts a cushioning effect. Further, since the contact roller is mounted on the processing head side, a configuration for retracting the cutter from the traveling path is not required, which can be simplified. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A work set ruler according to the present invention will be specifically described below with reference to an embodiment. FIG. 1 is a plan view of a groove processing machine equipped with this device, and FIG. 2 is a rear view of the same.
First, the upper part of FIG. 1 is defined as the front side of the machine, and the lower part is defined as the rear side. In the figure, 1 is a base 2 is a horizontally long frame arranged in the center of the base 1, and 3 is a roller conveyor type conveying means arranged in the upper front part of the frame 2. The worker stands on the front side of the transport means 3 to perform the work. The above-mentioned conveying means 3 is composed of a plurality of left and right idle rollers arranged and conveys the supplied work W in the longitudinal direction with the flange a horizontal. 4 is frame 2
The table 5 provided on the upper side of the
A fixed vise table 6 provided on the right side of the table 4 is a movable vise table 7 provided on the other side of the table 4, a moving guide 8 for guiding the vise table 6 in the left and right directions, and an open / close operation member for operating the vise table 6. On the facing surfaces of the above two vise bases 5 and 6, a downward fixed reference surface 9 which contacts the inner surface of the flange a of the work W, and a rotatable clamp claw which contacts the outer surface of the flange a, respectively. And 10 are provided. The clamp claw 10 rotates upward in the horizontal plane and presses the flange a against the reference surface 9 when the edge of the flange a comes into contact with the vertical surface of the holding portion. The two vise tables 5 and 6 constitute a clamping means for clamping and fixing the work W. Reference numeral 11 denotes a guide rail 12 arranged in the left and right direction on the rear side of the frame 2. Reference numeral 12 denotes a carriage which is engaged with the guide rail 11 so as to travel. Reference numeral 13 denotes a gear case provided on the carriage 12. Three gear cases are provided in the gear case 13. Spindle 14,
15 and 16 are projected upward. Spindle 14-16
A groove cutter 17, a scallop cutter 18, and a drive-in cutter 19 are attached to each of them. Each of the cutters 17 to 19 described above constitutes a processing head including the carriage 12. Reference numeral 20 denotes a feed screw type traveling drive means provided in association with the carriage 12, and the traveling drive means 20 includes a passive nut (not shown) provided on the carriage 12 and the feed screw shaft 2.
1. The electric motor 22 drives the feed screw shaft 21 in the forward and reverse directions. A is a work set ruler means provided on one side (left end) of the carriage 12 and corresponds to the end of the flange a of the work W when the carriage 12 is at the traveling start end (the position shown by the solid line in FIG. 1). To do. The work set ruler means A will be described with reference to FIG. 3. Reference numeral 23 is a slide guide 24 provided on the carriage 12, a box-shaped holder 25 engaged with the slide guide 23, and a holder 24 by a vertical support shaft. This contact roller 25 is attached to the holding body 24 with its contact surface facing forward. Reference numeral 26 denotes a rearward adjustment screw shaft 27 provided on the holding body 24 by allowing only rotational movement. Reference numeral 27 denotes an operation handle provided at the tip of the adjustment screw shaft 26. Reference numeral 28 denotes a nut cylinder with a flange screwed onto the adjusting screw shaft 26. Reference numeral 29 denotes a holding stay that holds the nut cylinder 28, and the lower end portion is fixed to the end portion of the slide guide 23.
The rotation preventing member 30 is engaged with the nut cylinder 28, and only the sliding movement is allowed. Reference numeral 31 is a spring member composed of a compression spring arranged between the holding stay 29 and the flange 28a of the nut cylinder 28. The spring member 31 urges the contact roller 25 forward through the adjusting screw shaft 26 and the holding body 24, that is, in the direction opposite to the supply direction of the work W. A locking ring 32 is attached to the outer peripheral portion of the other end of the nut cylinder 28. The locking ring 32 contacts the end of the holding stay 29 to regulate the position of the contact roller 25. Reference numeral 33 is a scale plate for displaying the position of the contact roller 25. The structure of the groove processing apparatus according to one embodiment is as described above, and the processing operation is performed as follows. In processing, the supply position of the workpiece W is adjusted according to the groove processing amount.
7 is rotated to adjust the position of the contact roller 25 in the front-rear direction via the holder 24. When the contact roller 25 is set to the front, the cutting amount (the driving amount) by the cutter 19 is small, and when it is set to the rear, the driving amount is large. After the contact roller 25 is set as described above, the work W supplied onto the conveying means 3 is pushed backward. The transfer of the work W is stopped when the front end hits the contact roller 25. (See FIG. 1) When this work is completed, the opening / closing operation member 8 is driven by an operation switch (not shown) to operate the movable vice base 6 in the closing direction. By the operation of the vise table 6, the work W is clamped and fixed by pressing the outer surface of the flange a against the clamp claws 10 and 10 and contacting the inner surface with the fixed reference surfaces 9 and 9.
Incidentally, even when the thickness of the flange a changes due to the difference in size of the work W, the work W is always fixed with the inner surface of the flange a at a constant height. (See FIG. 2) After the clamp operation is completed, it is confirmed that the tip of the work W is in contact with the contact roller 25. When the setting of the work W is completed as described above, the cutters 17 to 9 of the machining head are rotated and the feed screw type traveling drive means 20 is driven to move the carriage 12 to the position shown in FIG. Drive to the left. The work W is subjected to required groove processing and scallop processing by this traveling movement. While the machining head is moving,
The contact roller 25 rolls while contacting the flange a. When the work W is tilted and clamped, or the flange a is tilted and cut, the contact roller 2
The distance between 5 and the flange a approaches or separates. Of these, in the latter case, there is no problem, but in the former case, the contact roller 25 is strongly pressed. At this time, since the contact roller 25 retracts due to the cushioning action of the spring member 31, no mechanical stress occurs. When the above-mentioned cutting is completed, the vise table 6 is operated in the opening direction to release the clamp of the work W, and then the traveling drive means 20 is reversely driven to move the machining head to the traveling base point. . Then, during this movement, the worker returns the processed work to the front side for processing. When the processing head returns to the base point, the contact roller 25 is set corresponding to the supply position of the work W, so that the next work set can be performed efficiently. As described above, in the work set ruler according to the present invention, the contact roller for restricting the work can be freely cushioned, so that mechanical stress can be eliminated and it can be used durable. It has an excellent effect that it can. Further, by providing the processing head side, a special retracting means is not required, and an effect that the configuration can be simplified can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a groove processing machine provided with a work set ruler according to the present invention. FIG. 2 is a rear view of the same. FIG. 3 is a plan view showing a configuration of a main part. FIG. 4 is a perspective view of an H-shaped steel subjected to groove processing. FIG. 5 is an explanatory diagram showing a configuration of a conventional groove processing machine. [Description of Codes] 3 Conveying Means 5 Fixed Vise Platform 6 Movable Vise Platform 12 Reciprocating Platform 17 Bevel Cutter 18 Scallop Cutter 19 Follow-up Cutter A Work Set Ruler 23 Slide Guide 24 Holding Body 25 Contact Roller 29 Holding Stay 31 Spring Member 32 Locking ring

Claims (1)

What is claimed is: 1. A H-shaped steel supplied in the longitudinal direction is clamped and fixed at a predetermined position by a clamping means which is opened and closed, and a machining head is provided which runs in a direction orthogonal to the H-shaped steel supply direction. In a processing machine for performing a groove processing on an end of an H-shaped steel by a cutter provided in the processing head, a contact roller slidable in the supply direction of the H-shaped steel is attached to one end of the processing head. The contact roller is biased by a spring member in the direction opposite to the sliding direction, and the contact roller is arranged so as to correspond to the end of the H-section steel when the machining head is located on the running base point side. A work set ruler for a groove processing machine.