JPH039962Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a material feeding table for processing machines such as shaped steel, and in particular to a mechanism of the material feeding table that sets the position of a workpiece with respect to the axis of a tool. Regarding.

[Problems to be solved by conventional techniques and ideas]

As a conventional material feeding table for this type of processing machine, one such as that disclosed in Japanese Utility Model Application No. 143140/1983 is known. The material feeding table of this invention rotatably supports a rotating shaft equipped with a handle on one side of the machine, the front end of the rotating shaft is screwed into the nut block of the material feeding table, and the rear end of the rotating shaft is screwed into the nut block of the material feeding table. A sliding member of the material feeding table is engaged with the material feeding table in order to guide the back and forth movement (Y-axis direction) of the material feeding table. A roller is provided on the other side of the material feeding table and is configured to run on the feeding path bracket of the machine base. However, in such a material feeding table, a single rotating shaft functions as both a drive shaft that moves the material feeding table back and forth and a member that guides the back and forth movement of the material feeding table. On the contrary, this results in more complicated assembly and more complicated adjustment of the parallelism of the material feeding table to the machine base. In other words, since the rotary shaft is used both to drive the material feeding table and to guide it, it is not only rotatably supported on the machine base by pillow blocks, but also supported at a position between the pillow blocks. This requires the complicated steps of mounting the sliding member of the material feeding table and further threading the nut block of the material feeding table to the front end of the rotating shaft. In addition, to adjust the parallelism of the material feeding table to the machine base, first adjust the height adjustment screws of each pillow block to adjust the parallelism in the front-back direction (Y-axis direction) and the parallelism in the left-right direction (X-axis direction). There were problems such as the fact that it was impossible for one person to do the adjustment, and that the adjustment work was extremely complicated and required a lot of time and effort.

Therefore, in view of the above-mentioned circumstances, the present invention not only requires a small number of parts and is easy to assemble the material feeding table to the machine base so as to be able to move back and forth, but also allows adjustment of the parallelism of the material feeding table to the machine base. It is an object of the present invention to provide a material feeding table for a processing machine that can be carried out extremely easily.

[Means that the invention attempts to solve]

In order to achieve the above object, the present invention has a material feeding table of a processing machine which is arranged to be movable back and forth with respect to the processing tools on the machine base, and a material feeding table that is attached to one end of the machine base parallel to the moving direction of the material feeding table. A rail with a length corresponding to the maximum distance of the movement is laid, and a linear motion bearing is attached to the material feeding table so that it can run freely while holding the rail, and the material feeding table is attached to the other end of the machine. A longitudinal pedestal facing the direction of movement of the table is attached so that the position in the height direction can be freely adjusted, a rack is laid on the pedestal, and a roller rolling on the pedestal is attached to the material feeding table; The present invention is characterized by a material feeding table for a processing machine, which rotatably supports a pinion that engages with the rack and is rotationally driven by a motor.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a material feeding table of a processing machine according to the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a control box with a built-in microcomputer and input device, 2 is a head part of the aircraft body 4,
3 is the base of the aircraft 4. A workpiece is inserted between the machine base 3 and the head section 2, and has a throat section 5 for cutting, punching, etc., and a movable blade 6 moves up and down within the throat section 5. There is. As shown in FIG. 3, the movable blade 6 can be detachably attached to the lower end of the ram 7, and is moved up and down together with the ram 7 by the drive of a hydraulic motor within the body 4. A rotary table 8 is provided on the machine base 3 below the movable blade 6, and a plurality of types of fixed blades 9 corresponding to the purpose of machining are mounted on the rotary table 8. A rotary table 8 is rotatably mounted so that a fixed blade 9 can be selected. In addition, it is of course possible to use a well-known method in which a fixed blade 9 and a movable blade 6 attached to the fixed blade 9 are installed on the rotary table 8, and the movable blade 6 is struck by a ram 7. It is.
As shown in FIG. 4, on the machine stand 3, there is provided a material feeding table 10 that substantially surrounds the rotary table 8 except for the rear side of its surface, and is movable in the front-rear direction, that is, in the Y-axis direction. Furthermore, as shown in Figure 5,
A bracket 1 is installed at the lower part of the front end side of the material feeding table 10.
1 is installed around the bracket 11, and a handle 13 is attached to the bracket 11 with a pillow unit 12 interposed therebetween. A slide pipe 15 is attached to the rotating shaft 14 of the handle 13.
is permanently installed. The slide pipe 15 has a slot 15a along the longitudinal direction. A slide shaft 16 is inserted into the slide pipe 15 so as to be slidable in the longitudinal direction. Slide shaft 1
A locking pin 17 such as a bolt is implanted in 6, and the locking pin 17 is inserted into the slot 16 and locked with the hole wall, and the material feeding table 10 is moved in the Y-axis direction. Even if the handle 13, rotating shaft 14, and slide pipe 15 move accordingly, the rotation of the handle 13 can be transmitted to the slide shaft 16. The slide shaft 16 is
It is rotatably supported on the machine base 3. The slide shaft 16 has a universal joint 18,
A joint lever 19 is connected to a joint lever 21 via a joint pipe 20, and a universal joint 22 is connected to the joint lever 21.
The bevel shaft 23 is connected via. The bevel shaft 23 is rotatably supported by the machine base 3. The bevel shaft 23 is a bevel gear 24, 2
5 to the rotary shaft 26.
The rotary shaft 26 is rotatably supported by the machine base 3, and has a rotary 27 made of a material such as urethane having high frictional resistance at its upper end. The rotary 27 is always in pressure contact with the circumferential surface of the rotary table 8. On the rotary table 8,
A locking pin 29 is always inserted into the fitting hole 28 with an elastic biasing force, and only when rotating the rotary table 8, the lever shown in FIGS. 1, 2, and 5 is used. If the lock pin 29 is pushed down against the elastic urging force, the lock pin 29 can be pulled out from the insertion hole 28. The material feeding table 10 is provided with a linear motion bearing 30 via a bracket 58 at the lower part of one side of the material feeding table main body 10a, and the linear motion bearing 30 can run on a rail 31 provided on the side surface of the machine base 3. be held between. In other words, as shown in Figure 6,
The linear motion bearing 30 has four ball rows 30a to 30d, each ball row 30a to 30d.
30b is adapted to press the large diameter portion 31a of the rail 31 from four sides so that it cannot be pulled out. Each ball row 30a to 30d consists of a load row l acting on the large diameter portion 31a and a relief row m.
The ball is formed into a ring shape so that it circulates between the rails 31 and the rail 31, so that it can run infinitely on the rail 31. The rail 31 is fixed to the side surface of the machine stand 3 via a pedestal 59. As shown in FIG.
A roller 33 running above is attached via a bracket 33a. As shown in FIG. 10, a rack 34 is provided on the pedestal 32 and is engaged with a pinion 35. A height adjustment bolt 32a is installed in the pedestal 32. The height adjustment bolt 32a is fixed to the other side of the machine base 3 using a bracket 3.
2b, and fix it with a double nut so that the height can be adjusted. The pinion 35 can be rotated by a motor 37 via a gear 36. The motor 37 is installed on a mounting base 38 that is integrated with the table main body 10a. On machine 3,
As shown in FIG. 7, a clamp guide 3a is fixedly installed by cutting out a part, and the clamp guide 3a has a T-shaped groove 3b, and a T-nut 3c is inserted into the groove 3b.
It is housed so that it can be moved in the axial direction. T nut 3
c, the clamp lever 3d is connected to the table body 10.
It is inserted through the through hole a and screwed together. As shown in FIG. 8, a main scale 39 is attached to the clamp guide 3a, and a vernier scale 40 is attached to the table main body 10a. The table main body 10a has a window hole 1 in which the scale of the main scale 39 can be read in correspondence with the vernier scale 40.
It has 0b. As shown in FIG. 9, an engager 10e is provided on the other side of the table main body 10a, and the engager 10e comes into contact with limit switches LS ₁ and LS ₂ that regulate the limits of forward and backward movement.
The drive of the motor 37 is stopped. As shown in FIGS. 1 and 2, a support section 42 for receiving a long workpiece is attached to one side of the material feeding table 10. As shown in FIGS. The support section 42 has an appropriate number of rollers 44 and 45 pivotally supported by a base 43 at appropriate intervals, and one end of the base 43 is fixed to the material feeding table 10. The other side of the base 43 is supported by a pedestal 46 that is movable in the Y-axis direction together with the material feeding table 10, with a roller 43a interposed therebetween. The rollers 44 and 45 have a long shaft length and a short shaft length coaxially arranged as a set, and the roller 45 with a short shaft length is particularly convenient for supporting an angle material as a workpiece. It's becoming like that. Further, as shown in FIGS. 1 and 2, a material feeding table 1
A sizing section 47 is attached to the other side of 0. Sizing section 47
Similarly to the support section 42 described above, one end of the base 48 is fixed to the other side of the material feeding table 10. base 4
The other side of the column 4 is movable in the Y-axis direction together with the material feeding table 10 with a roller 48a interposed therebetween.
9 to support. On the base 48, a set of a roller 50 with a long shaft length and a roller 51 with a short shaft length, in which the rollers 50 and 51 are coaxially supported, are arranged at appropriate intervals. . A stopper device A is provided in the sizing section 47. The stopper device A includes a motor 52 and a stop arm 5.
3, and is configured to run on rails laid on the base 48 by the drive of a motor 52. The stopper device A is for positioning in the X-axis direction, and depending on processing conditions, a stopper device B may be attached for positioning in the Y-axis direction. The stopper device B includes a stop arm 54.
The stopper device A has the same structure as the stopper device A except that it moves in the Y-axis direction, and is configured to run on a rail laid on the machine base 3 by the drive of a motor 55. The stop arms 53 and 54 are used to abut the ends of the workpiece to automatically set the distance from each stop arm 53 and 54 to the axis of the machining blade, that is, the machining dimension. The operation of the stopper devices A and B is controlled by a control circuit such as a microcomputer in the control box 1.

To assemble the material feeding table 10, insert the linear motion bearing 3 from one end of the rail 31.
Alternatively, the linear motion bearings 30 may be separated from the material feeding table main body 10a in advance, and only the linear motion bearings 30 may be sequentially mounted on the rails 31, and then the material feeding table main body 10a and Bolt-tighten the linear motion bearing 30. On the other side of the material feeding table main body 10a, simply by placing the roller 33 on the pedestal 32, the rack 34 and pinion 35 mesh with each other. In order to adjust the parallelism of the material feeding table main body 10a with respect to the machine base 3, the bracket 32 is
If the height adjustment bolt 32a is moved up and down with respect to b, the pedestal 32 moves up and down, and the roller 3 is placed on the pedestal 32.
3 is placed on the material feeding table main body 10a.
can adjust the parallelism in the left-right direction, that is, in the X-axis direction. The rail 31 is fixed to the machine base 3 and can be made parallel to the plane of the machine base 3 in advance, so that the parallelism of the material feeding table main body 10a in the front-back direction, that is, in the Y-axis direction No adjustment is necessary for this. Of course, the rotary table 8 is mounted so that its plane is parallel to the machine base 3.

Next, in order to position the material feeding table 10 with respect to the processing blade, first loosen the clamp lever 3d, release the tightness between the T-nut 3c and the clamp guide 3a, and insert the clamp lever 3d into the T-shaped groove 3b of the clamp guide 3a. The T-nut 3c makes it slidable, that is, releases the lock so that the material feeding table 10 can be moved back and forth. Next, when the motor 37 is driven, the pinion 35 rotates via the gear 36. The pinion 35 is connected to the pedestal 3
Since it is engaged with the rack 34 on the top 2, the installation stand 38, that is, the material feeding table 10, moves back and forth. Then, while the operator confirms the movement position of the material feeding table 10 from the scale of the vernier scale 40 relative to the main scale 39, the operator positions the material feeding table 10 so as to reach the sizing part 47 via a predetermined position of the processing blade. After positioning is completed, the drive of the motor 37 is stopped and the clamp lever 3d is tightened. When the clamp lever is tightened, the T-nut 3c is pressed against the clamp guide 3a and tightened to prevent sliding. Therefore, the material feeding table 10 is locked to the machine base 3 so that it cannot move back and forth. After positioning, the workpiece is inserted from the support portion 42 side until it hits the stop arm 53 of the stopper device A, and the movable blade 6 is moved downward toward the fixed blade 9 to perform processing such as cutting or punching. It goes without saying that the stop arm 53 of the stopper device A is previously positioned by the drive of the motor 52 so as to maintain a predetermined distance from the axis of the processing blade. When it is necessary to set machining dimensions not only in the X-axis direction but also in the Y-axis direction, the motor 55 of the stopper device B is driven until the stop arm 54 is at a position a predetermined distance from the axis of the machining blade. Let's move it. During machining, the workpiece is abutted against not only the stop arm 53 of the stopper device A but also the stop arm 54 of the stopper device B for machining.

"Effects of the Invention" As described above, according to the material feeding table of the processing machine according to the present invention, the material feeding table is movably supported at one end of the machine base by the rail and the linear motion bearing, and the material feeding table is movably supported at one end of the machine base. It is supported by a roller at the end so that it can run freely, and the rack laid on the pedestal meshes with a pinion provided on the material feeding table, and the pinion is rotated by a motor to move the material feeding table back and forth. At this time, since the rail can be laid in advance on the material feeding table so as to be parallel to the direction of longitudinal movement, there is no need to adjust the parallelism of the material feeding table in the longitudinal direction of movement with respect to the machine base. In addition, horizontal adjustments to the machine base can be made by simply moving the vertically movable cradle in the vertical direction, making adjusting the parallelism of the material feeding table to the machine base extremely simple and reducing the number of parts. It is very convenient and has a very small number of parts and is easy to assemble.

[Brief explanation of drawings]

The drawings show an embodiment of the material feeding table of the processing machine according to the present invention, and FIG. 1 is a front view of the processing machine;
Fig. 2 is a plan view of Fig. 1, Fig. 3 is a right side view of the processing machine, Fig. 4 is a plan view showing the main parts of the material feeding table, and Fig. 5 is a mechanical diagram showing the rotation mechanism of the rotary table. , Fig. 6 is an explanatory diagram to explain the structure of the linear motion bearing, Fig. 7 is a mechanical diagram to explain the mechanism of the forward and backward movement of the material feeding table main body, and Fig. 8 is an explanatory diagram to explain the mechanism of the forward and backward movement of the material feeding table main body. Fig. 9 is a relational diagram showing the mounting state of the rail and linear motion bearing, Fig. 10 is the meshing state of the pinion and rack, and the roller and pedestal. FIG. 3...Machine base, 8...Rotary table, 10...Material feeding table, 10a...Material feeding table body, 30
... Linear motion bearing, 31 ... Rail, 32 ... Pedestal, 33 ... Roller, 34 ... Rack, 35 ... Pinion, 36 ... Gear, 37 ...
…motor.

Claims (1)

[Scope of utility model registration request] In the material feeding table of a processing machine that is arranged to be movable back and forth relative to the processing tools on the machine platform, there is a piece of paper at one end of the machine platform that is parallel to the direction of movement of the material feeding table and has a length that corresponds to the maximum distance of movement. A rail is laid, and the material feeding table is equipped with a linear motion bearing that can run freely while holding the rail, and a long pedestal is raised at the other end of the machine base in the direction of movement of the material feeding table. A rack is installed on the table so that the position in the horizontal direction can be adjusted, and a rack is laid on the table, and a roller that rolls on the table and is engaged with the rack and is driven to rotate by a motor. A material feeding table for a processing machine, characterized by being rotatably supported by a pinion.