JPH0810483Y2 - V-shaped groove processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a V-shaped groove processing machine for processing a V-shaped groove on the upper surface of a plate material. More specifically, the present invention relates to a V-shaped groove processing machine provided with a support device configured to support a screw rod that guides a processing head and avoid interference with the processing head.

(Prior Art) Conventionally, when bending a plate material, in order to further reduce the bending radius of the bent portion, a V-shaped groove is previously formed in the bent portion of the plate material, and this groove portion is placed inside. Bending may be performed. As described above, when forming a V-shaped groove in the plate material, a shaper, a plano mirror, or the like can be used, but there is no dedicated machine.

Therefore, conventionally, it takes time to set the plate material at the processing position, and when the number of plate materials to be processed is relatively large,
Work efficiency was poor.

Therefore, we have developed and already proposed a V-shaped groove processing machine as a special machine that automatically sets the plate material at the processing position and improves the work efficiency.

(Problems to be solved by the invention) However, in the above-described V-shaped groove processing machine as a dedicated machine, if the moving range of the processing head is lengthened, it is necessary to lengthen the ball screw as the drive shaft accordingly. Therefore, the ball screw bends due to its own weight,
It is not possible to maintain stable movement of the machining head, and the desired V
There was a problem that the V-shaped groove could not be processed.

Therefore, in order to solve the above problems, the present invention provides a V-shaped groove processing machine which is provided with a support device that supports a ball screw and is configured to avoid interference with the processing head. With the goal.

[Structure of the Invention] (Means for Solving the Problems) In view of the conventional problems as described above, the present invention provides a machining tool provided with a cutting tool for machining a V-shaped groove in a plate material on a work table. In a V-shaped groove machining machine in which a head is provided reciprocally in the left-right direction above the work table and a screw rod for moving the machining head in the left-right direction is long in the left-right direction, A support member is mounted on a slider provided so as to be reciprocally movable in a direction, and the support member is provided with a screw receiving portion for supporting an intermediate position of the screw rod when the slider is in the forward position, and the support member Is provided on the slider so as to be swingable in the left-right direction.

(Operation) With the above configuration, the machining head is moved in the longitudinal direction of the work table along the screw rod at the position above the work table. At this time, the intermediate position of the screw rod is supported by an appropriate number of support devices. Further, each support device moves between the support position and the interference avoidance position with the machining head, thereby avoiding the interference with the machining head.

Furthermore, since the support member of the support device can swing in the left-right direction, when the machining head comes into contact with the support member, the impact at that time can be absorbed.

(Embodiment) Referring to FIG. 3, a V-shaped groove processing machine 1 according to the present embodiment has a box-shaped lower portion that is relatively long stretched in the left-right direction (the front-back direction toward the paper in FIG. 3). A frame 3 is provided, and left and right side frames 5 are erected on both left and right sides of the lower frame 3, respectively.

An upper frame 7 is provided above the left and right side frames 5. A front plate 9 is integrally connected to the upper frame 7, and is firmly connected by an appropriately provided connecting plate 11.

That is, the V-shaped groove processing machine 1 has a structure in which the front plate 9 and the like are arranged above the lower frame 3.

A work table 13 is provided on the front side (left side in FIG. 3) of the lower frame 3 for mounting the plate material W to be processed. On the front side of the work table 13, an auxiliary table 17 for mounting the plate material W via a bracket 15 fixed to the lower frame 3 is provided.

A plurality of brackets 19 are appropriately fixed near the left and right sides on the rear side (right side in FIG. 3) of the lower frame 3. Each of these brackets 19 is provided with a guide rail 21 extending to a position close to the work table 13, and these guide rails 21 have:
Moving clamp device for moving and positioning the plate material W
23 is movably supported in the front-rear direction.

In order to firmly fix the plate material W to the work table 13 during processing, a plurality of fixing clamp devices 25 are appropriately provided on the lower side of the front plate 9 in the left-right direction.

In order to form a V-shaped groove on the upper surface of the plate material W positioned and fixed by the movable clamp device 23 and the fixed clamp device 25, a plurality of detachable cutting tools 27 are provided above the work table 13. A processing head 29 is provided.
The processing head 29 is configured to be movable in the left-right direction via a sliding member 31 provided integrally.

More specifically, the front member 9 is provided with a plurality of guide rails 33 extending in the left-right direction. The sliding member 31 provided integrally with the processing head 29 is integrally provided with a sliding member 35 guided by the guide rail 33 and movable in the left and right directions.

Further, a ball screw 37 parallel to the guide rail 33 is provided between the left and right side frames 5, and the sliding member 31 is screwed with the ball screw 37 and is movable in the left and right directions. A nut member 39 is provided.

Therefore, by driving the first servo motor (not shown) and appropriately rotating the nut member 9, the machining head 29 is moved in the left-right direction.

The processing head 29 is also configured to be movable in the vertical direction.

More specifically, the sliding member integrally provided on the processing head 29
A motor bracket 41 is provided on the upper front side of 31 and the second servo motor 43 is provided on the motor bracket 41.
Is provided. A ball screw 45 extending downward is rotatably supported by the second servo motor 43, and a nut that is screwed into the ball screw 45 and vertically movable by the machining head 29. A member (not shown) is provided.

Therefore, by driving the second servo motor 43 to rotate the ball screw 45 appropriately, the machining head 29
Will be moved in the vertical direction via the nut member.

That is, the plate material W is moved by moving the cutting tool 27 attached to the processing head 29 in the left-right direction and the vertical direction.
A V-shaped groove is formed on the upper surface of the.

However, due to the weight of the ball screw 37, the machining head 29, etc. when the machining head 29 moves in the left-right direction, the ball screw 37 bends and hinders stable movement of the machining head 29.
The processing accuracy of the plate material W deteriorates. This tendency is particularly large when the ball screw 37 is long in the left-right direction.

Therefore, in the present embodiment, not only both ends of the ball screw 37 are supported, but also the intermediate position of the ball screw 37 is supported by an appropriate number of fulcrums, so that an appropriate number of support devices 47 are appropriately arranged in the left-right direction. Provided.

Referring to FIG. 1, one of a suitable number of support devices 47
One support device 47 is shown. Support base 49
Is attached to an appropriate position on the front plate 9 via a bracket 51 integrally attached to the front side (left side in FIG. 1) of the support base 49, and the rear side (right side in FIG. 1) of the support base 49. It is attached to the connecting plate 11 via an adjusting bolt 53 provided on the. In addition, this adjustment bolt 53
The upper and lower positions of the support base 49 are changed by appropriately operating the.
It is possible to adjust the degree of contact with.

A support guide 55 extending in the front-rear direction (left-right direction in FIG. 1) is provided on the upper surface of the support base 49. This support guide 55 has this support guide 55
Slide block 57 that can be moved forward and backward by being guided by
The slide block 57 is integrally provided with a slider 59.

A support member 65 having a screw receiving portion 63 is provided on the upper surface of the slider 59 for supporting the ball screw 37 via a first supporting device 61.

More specifically, the first support device 61 includes a bolt 67, a spring 69, and a spring seat 71. That is, the bolt 67 penetrates the hole 73 formed in the spring seat 71, the spring seat 71 and the bolt 67 penetrate the hole 75 formed in the support member 65, and the bolt 67 forms the female screw portion of the slider 59. It is screwed with 77. A spring 69 is mounted between the spring seat 71 and the recess of the support member 65. Therefore, the support member 65 is always in contact with the upper surface of the slider 59 by the action of the spring 69, and the support member 65 is in the left-right direction about the bolt 67 (the direction perpendicular to the paper surface in FIG. 1).
It is possible to swing.

A second support device 79 is provided on the slider 59 to support the rear portion of the satport member 65.

More specifically, the second supporting device 79 is composed of a pin 81, a spring 83 and a bolt 85, and the pin 81, the spring 83 and the bolt 85 are provided in a hole 87 formed in the slider 59. That is, the pointed end of the pin 81 engages with the engagement hole 89 formed in the end of the slider 59 to form a click mechanism, and the bolt 85 is screwed into the female threaded portion 91 of the slider.

Therefore, the pin 81 of the second support device 79 is always brought into contact with the satport member 65 by the action of the spring 83.

The support member 65 is appropriately movable in the front-rear direction (left-right direction in FIG. 1) so as to avoid interference with the processing head 29.

More specifically, a cylinder bracket 93 is provided at an appropriate position on the support base 49, and an air cylinder 95 is provided on the cylinder bracket 93. The air cylinder 95 has a piston rod 97 that is movable in the front-back direction.
Is provided, and the tip end portion of the piston rod 97 is attached to the slide 59.

Further, referring to FIG. 2, the support device 47 is appropriately provided with a sensor 99 such as a limit switch. Sensors provided on both the left and right sides of the support device 47
99a, 99b, 99C and 99d have a function of detecting the approach of the processing head 29 and sending a detection signal.

In the above configuration, referring to FIG. 1 and FIG.
First, each support member 65 of the appropriate number of support devices 47 is moved forward so as to support the intermediate position of the ball screw 37. The support member 65 moves straight until it contacts the ball screw 65 by the second support device 79, and after contacting the ball screw 65, it can move by changing the direction of travel to the lead direction of the ball screw 65. is there.

Next, in order to process the plate material W, the processing head 29 is moved to the first
Leftward via servomotor (leftward in Fig. 2)
Move to. When the left end of the processing head 29 passes the sensor 99a and moves to the position of the sensor 99b, the sensors 99a, 9a
A detection signal is sent from 9b to a control device (not shown), and the air cylinder 95 is appropriately operated via the control device to move the support member 65 rearward. As a result, the processing head 29
The interference between the support device 47 and the support device 47 is avoided. At this time, the sensor 99a confirms safety whether the support member 65 may be moved backward.

Furthermore, the machining head 29 is moved to the left,
When the right end of 29 moves to the position of the sensor 99c, a detection signal is sent from the sensor 99c to the control device, the air cylinder 95 is appropriately operated via the control device, and the support member 65 moves forward. As a result, the ball screw 37 is again supported by the support device 47. The sensor 99d confirms that the processing head 29 is not located on the support device 47.

A suitable number of support devices 47 each perform the above-mentioned action,
Further, when the processing head 29 moves to the right, the sensors 99d, 99c, 99b, 99a are 99a, 99b, 99 in the above cases, respectively.
Performs the action corresponding to c, 99d.

If the machining head 29 contacts the support member 65 of the support device 47, the satport member 65 swings in the left-right direction and absorbs the impact at the time of contact.

According to the present embodiment as described above, since the ball screw 37 is supported by the appropriate number of support devices 47 at the intermediate position, the bending of the ball screw 37 can be minimized, and the stable machining head 29 The movement is maintained, the processing accuracy of the plate material W is increased, and the work efficiency is improved. Further, by appropriately moving the support device 47 in the front-rear direction, it is possible to avoid the interference between the processing head 29 and the support device 47.

It should be noted that the present invention is not limited to the above-described embodiment, and for example, instead of rotating the nut member 39 to move the processing head 29 in the left-right direction, the ball screw 37 is rotated, and the support device 47 is horizontally moved. As a structure that rotates, changing the position to avoid interference with the processing head 29, etc.
It is possible to carry out in various other modes by making appropriate changes.

[Effects of the Invention] As can be understood from the above description of the embodiments, the present invention is basically provided with a cutting tool (27) for processing a V-shaped groove in a plate material on a work table (13). A machining head (29) which is reciprocally movable in the left-right direction above the work table (13), and a screw rod (37) for moving the machining head (29) in the left-right direction is provided in the left-right direction. In a V-shaped groove machining machine that is provided long in the above, a support member (65) is attached to a slider (59) that is reciprocally movable in the front-rear direction, and the support member (65) is provided with
When the slider (59) is in the forward position, the screw rod (3
A screw receiving portion (63) for supporting the intermediate position of 7) is provided, and the support member (65) is provided on the slider (59) so as to be swingable in the left-right direction.

As is apparent from the above configuration, in the present invention, the screw receiving portion of the support member 65 in which the intermediate portion of the screw rod 37 for moving the processing head 29 in the left and right direction is attached to the slider 59 that is movable in the front and rear direction. Since the structure is supported by 63, the bending of the screw rod 37 is suppressed and the machining head 29 is stable.
Of course, the processing accuracy can be improved, and the support member 65 can be swung in the left-right direction to prevent the processing head 29 from contacting the support member 65. The shock absorber can absorb the shock by swinging the support member 65 in the left-right direction and does not damage the support member 65 and the processing head 29.

[Brief description of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional view showing the main part of this embodiment. FIG. 2 is an explanatory view of the operation of this embodiment. FIG. 3 is a side sectional view of the V-shaped groove processing machine. 1 …… V-shaped groove machining machine, 13 …… work table 29 …… machining head, 37 …… ball screw 47 …… support device

Claims (1)

[Scope of utility model registration request] 1. A machining head (29) having a cutting tool (27) for machining a V-shaped groove in a plate material on a work table (13) is provided at the left and right above the work table (13). And the processing head (29).
In a V-shaped groove processing machine in which a screw rod (37) for moving the blade in the left-right direction is provided in the left-right direction, a support member (6) is attached to a slider (59) that is reciprocally movable in the front-rear direction.
The support member (65) is provided with a screw receiving portion (63) for supporting the intermediate position of the screw rod (37) when the slider (59) is at the forward position, and A V-shaped groove processing machine, wherein a support member (65) is provided on the slider (59) so as to be swingable in the left-right direction.