JP2510343Y2 - V-shaped grooving machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a V-shaped groove processing machine, and more specifically, blows or sucks dust or chips to a fixed clamp device that clamps a workpiece. The present invention relates to a V-shaped groove machine provided with a cleaning fluid passage.

(Prior Art) Recently, an intelligent building using a mirror surface plate such as stainless steel and a decorative plate such as etching, and other buildings have been increasing. The decorative sheet metal used for these needs to have a sharp edge at the bent portion for the purpose of specification. Therefore, as a pre-step of bending, a groove having a V-shape or the like is formed, and then the groove is bent to obtain a sharp edge.

A V-shaped grooving machine or a planer is used to perform these grooving. As the machining method, the workpiece is abutted against the reference surface, the tool is positioned at the position to be machined by NC control, then the workpiece is fixed by a fixed clamp device so as not to slip, and groove machining is performed with the tool.

(Problems to be solved by the invention) By the way, in the above-described conventional groove machining method, dust adhering to the upper surface of the work or groove machining occurs when machining is performed first, such as when re-clamping into several pieces and re-clamping. The fine chips are clamped together with the work when the work is clamped by the fixed clamp device. As a result, the mirror surface or the etching surface, which is the surface of the work, may be scratched, and the work itself may become unusable.

Therefore, in the related art, these dusts and cutting chips have been wiped by a worker with a waste cloth or blown off with an air gun for cleaning, so that there is a problem that work efficiency is reduced.

In order to solve the above problems, the object of the present invention is to provide a cleaning air passage in the fixed clamp device, and blow air from the opening of the cleaning air passage as needed, or suck it to suck the surface of the workpiece. Prevent dust or cutting chips from adhering to the surface of the work, or suck the dust to prevent scratches on the work surface without clamping the dust or cutting chips when clamping the work with the fixed clamp device. In addition, it is to provide a V-shaped groove processing machine with improved work efficiency.

(Means for Solving the Problems) In view of the conventional problems as described above, the present invention includes a fixed clamp device for pressing and fixing a work on a work table, and performs V-shaped groove processing on the work. In a V-shaped groove processing machine having a cutting head provided with a cutting tool for reciprocating in the left-right direction, a fixed clamp member for pressing and fixing the work is provided on the fixed clamp device, and the fixing is performed. A fluid pressure cylinder that operates the clamp member is provided, and each sensor that detects the forward and backward ends of the piston rod of the fluid pressure cylinder is provided, and air is jetted to the position where the fixed clamp member presses the work for cleaning. A cleaning fluid passage for cleaning the fixed clamp member from the unclamped state to the clamped state. Note: When the sensor for detecting the backward end is turned off, air injection is started, and the sensor for detecting the forward end is set in the clamped state.
When it is turned on, the injection of air is stopped.

(Operation) In the above configuration, when the fixed clamp member is in the unclamped state and the sensor for detecting the backward end is turned on, the fixed clamp member starts moving to the clamped state and the sensor is turned off. Air injection is started,
When the fixed clamp member fixes the workpiece to be in the clamped state and the sensor for detecting the forward end is turned on, the air injection is stopped.

Therefore, the portion where the fixed clamp member presses and fixes the work is cleaned by the air jet, and the chips and the like are removed.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 3, the V-shaped groove processing machine 1 is provided with a box-shaped lower frame 3 extending in the left-right direction (direction orthogonal to the paper surface in FIG. 3) relatively long. Left and right side plates 5 are provided on both left and right sides of the frame 3, respectively.
Is erected. The upper parts of the left and right side plates 5 are integrally connected by an upper frame 7.

In order to support a work W (see FIG. 1) such as a plate material to be processed, an adjustable work table 9 which is vertically adjustable is mounted on the lower frame 3. A plurality of brackets 11 are attached to the rear side (right side in FIG. 3) of the lower frame 3 at appropriate intervals. A guide rail 13 extending to a position close to the adjusting work table 9 is laid on the upper part of each bracket 11, and the work W is gripped on the guide rail 13 in the front-back direction (hereinafter, referred to as Y-axis direction). A Y-axis positioning device for positioning is mounted.

That is, a gear box 15 is disposed on each of the two pedestals in the middle of the bracket 11, and a ball screw is provided between the gear box 15 and the front bearing 17.
19 is rotatably supported. A suitable connecting mechanism is incorporated in both gear boxes 15 so as to rotate both ball screws 19 in an interlocking manner. A pulley 21 is fixed to the rear end of the ball screw 19 on the right side.
It is rotatably connected to a servo motor M _Y fixed to the motor via a timing belt 23.

Further, on the guide rail 13, a back gauge device 27 having a plurality of work clamp devices 25 is movably supported in the Y-axis direction. A nut member 29 to which the ball screw 19 is screwed is attached below the back gauge device 27.

Therefore, by driving the servo motor M _Y and rotating the ball screw 19 in an appropriate direction, the back gauge device 27
Can be moved in the Y-axis direction. In other words,
The work W gripped by the work clamp device 25 can be positioned at any position on the Y axis.

In order to form a V-shaped groove on the upper surface of the work W positioned by the Y-axis positioning device, a slider 33 equipped with a cutting tool 31 is provided above and below the adjust work table 9 in the vertical direction (hereinafter Z A Z-axis and X-axis positioning device is provided that is positionally adjustable in the axial direction and movable in the left-right direction (hereinafter referred to as the X-axis direction).

More specifically, a guide rail 35 extending in the left-right direction is attached to the upper frame 7, and a cutting head 37 that supports the slider 33 movably in the Z-axis direction is supported on the guide rail 35. . To move the cutting head 37 in the X-axis direction, the left and right side plates 5
A ball screw 39 parallel to the guide rail 35 is provided between them. The ball screw 39 is connected to the servo motor M _X via an appropriate coupling mechanism, and the cutting head 37
A nut member (not shown) provided inside is screwed.

Therefore, by driving the servomotor M _X , the nut member provided inside the cutting head 37 can be rotated to move the cutting head 37 to any position at any speed.

An upper end of the slider 33 is connected to a servo motor M _Z via an appropriate timing pulley and a belt, and an intermediate part of the servo motor M _Z is screwed to a bearing member 41 fixed to the cutting head 37. A ball screw 43 is rotatably supported. Therefore, by driving the servo motor M _Z , the slider 33 having the cutting tool 31 at the lower end can be moved to an arbitrary height at an arbitrary speed.

A plurality of cutting tools 31 (for example, 5
The cutting tool 45 and a cutting tool holder 47 that integrally connects the cutting tools 45, and the tip of the cutting tool 45 is formed in a V shape. The cutting tool 45 is attached to a cutting tool holder 47 so as to be detachable and positionally adjustable.

In this embodiment, when the V groove is formed on the upper surface of the work W, the rear side projects downward so that the succeeding bit cuts deeper than the preceding bit. Therefore, when the groove of the work W is processed, the resistance acting on each cutting tool 45 is small. Also, 1 of the slider 33
It is possible to process from rough cutting to precise cutting by stroke operation.

In order to firmly fix the work W to the adjusting work table 9 after the work W is positioned, a fixing clamp device 49 is provided below the upper frame 7.
In addition, this fixed clamp device 49 detects this operation,
A plate thickness detector (not shown) for detecting the thickness t of the work W while the work W is being held is attached.

Therefore, the fixed clamp device 49 is operated by, for example, a hydraulic cylinder, and the arm tip of the fixed clamp device 49 is pressed against the upper surface of the work W, whereby the work W can be firmly fixed to the upper surface of the adjustment work table 9. . Further, the plate thickness t can be detected while the work W is being pressed.

In order to prevent the ball screw 39 from bending due to its own weight,
Normally, while supporting the ball screw 39 from below,
When passing the cutting head 37, a plurality of screw support devices 51 are provided at appropriate intervals in the X-axis direction so as to retract backward and avoid interference with the cutting head 37.

With the above configuration, the slider 33 is adjusted in the Z-axis direction,
By moving the cutting head 37 in the X-axis direction, the work W is V-shaped grooved by the cutting tool 45.

A fixed clamp device 49 is provided below the upper frame 7. More specifically, as shown in FIG. 1 and FIG. 2, the upper part of the rear part (right part in FIG. 1) of the clamp body 53 of the fixed clamp device 49 is mounted on the lower part of the upper frame via the bracket 55. It is attached with multiple bolts 57. A fluid pressure cylinder 59 is integrally provided in the rear portion of the clamp body 53. A piston rod 61 extending in the Y-axis direction is attached to the fluid pressure cylinder 59.

A fixed clamp member 63 is provided on the clamp body 53. In the fixed clamp member 63, a clamp arm 63A and a clamp arm 63B are integrated. The tip of the clamp arm 63A is integrated with the tip of the piston rod 61. Moreover, the portion where the clamp arm 63A and the clamp arm 63B are integrated is rotatably supported by the reference pin 65 on the tip of the clamp body 53. The clamp part, which is the tip of the clamp arm 63B, has a plurality of bolts that are clamp pads 67 made of urethane or the like.
Installed at 69.

A bracket 71 is integrated with the rear part (right part in FIG. 1) of the clamp body 53.
A forward end proximity switch 73 and a backward end proximity switch 75 are provided at appropriate intervals. Also, the piston rod
A dog 77 is attached to the rear of the 61. Further, one ends of pipes 79 and 81 are connected to the front and rear cylinder chambers of the fluid pressure cylinder 59, respectively, and the other ends of these pipes 79 and 81 are connected to a fluid pressure circuit (not shown). A pressure switch is provided in this fluid circuit.

With the above configuration, by supplying the fluid from the pipe 81 to the rear cylinder chamber of the fluid pressure cylinder 59, the piston rod 61 moves leftward in FIG. As a result, the fixed clamp member 63 rotates counterclockwise around the reference pin 65 as a fulcrum, and the work W placed on the adjusting table 9 by the clamp pad 67 attached to the tip of the clamp arm 63B. Will be pressed and fixed and clamped.

Further, by supplying the fluid from the pipe 79 to the front cylinder chamber of the fluid cylinder 59, the piston rod 61 is moved to the first position.
Move to the right in the figure. As a result, the clamp arm 63B is rotated clockwise around the reference pin 65 as a fulcrum.
The clamp hud 67 attached to the leading end of the workpiece W is released from the state of pressing and fixing the work W, and is unclamped.

As shown in FIGS. 1 and 2, a pipe 83 is attached to the left side wall of the clamp body 53, and one end of the pipe 83 is connected to a fluid source (not shown).
The other end of 83 is connected to the joint 85. One end of a pipe 87 is connected to this joint 85. This piping 87
Is extended from the left side to the right side in FIG. 2 behind the clamp body 53, and the other end of the pipe 87 is the clamp body.
It is connected to the joint 89 at the right side of 53.

The joint 89 is connected to a joint 93 via a pipe 91, and a pipe 95 connected to the joint 93 is formed in a T-shape in the clamp arm 63B to form a cleaning fluid passage 97.
Is communicated to. An opening 99, which is the tip of the fluid passage 97, is formed at the tip of the clamp pad 67.

With the above configuration, when a fluid such as air is supplied to the pipe 83 from a fluid source (not shown), the air is jetted from the opening 99 of the cleaning fluid passage 97 formed in the clamp arm 63B via the pipes 87, 91 and 95. It will be. Therefore, before the work W placed on the adjusting work table 9 is pressed and fixed by the fixed clamp device 49 and the V-shaped groove is processed by the cutting tool 45, that is, before the fixed clamp device 49 is pressed and fixed. By injecting a fluid, for example, air, from the opening 99 of the cleaning fluid passage 97 toward the work W, dust and chips adhering to the surface of the work W are blown and removed.

Thus, when the work W is clamped by the fixed clamp device 49, dust and cutting chips are not clamped together with the work W, so that the surface of the work W is not scratched and the hand of the operator is prevented. Since it is not necessary, work efficiency can be improved.

Further, the operation of removing dust and chips will be described in detail. The forward end proximity switch 73 on the bracket 55 provided on the rear portion of the clamp body 53 of the fixed clamp device 49.
Is ON and the pressure switch provided in the hydraulic circuit of the fluid cylinder 59 is turned ON, the clamped state of the fixed clamp device 49 is confirmed. At this time, the cleaning fluid, for example, air, closes the solenoid valve on the circuit to stop the injection of air from the opening 99 of the cleaning fluid passage 97. In this state, V-shaped groove machining is performed.

When the forward end proximity switch 73 is OFF and the pressure switch is OFF and the fixed clamp device 49 is in the unclamping state, air starts to be ejected from the opening 99 and the backward end proximity switch is started.
When 75 is ON, air injection from the opening 99 is stopped.

Further, when the backward end proximity switch 75 is turned off, air is ejected from the opening 99 along with the start of the movement to the clamped state, and the air ejection is stopped in the clamped state.

Therefore, the air injection from the opening port 99 is performed only when the fixed clamp device 49 is in the unclamped state to the clamped state and when the fixed clamp device 49 is in the unclamped state, so that the air consumption amount is small. So economical.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, in the present embodiment, the example in which air is used as the cleaning fluid has been described, but water or oil may be used.

Instead of connecting a fluid source to the other end of the pipe 83, a blower may be connected to suck air and suck dust and chips to remove the air.

[Effects of the Invention] As will be understood from the above description of the embodiments, in short, the present invention is provided with the fixed clamp device (49) for pressing and fixing the work (W) on the work table (9), and In the V-shaped groove processing machine, which comprises a cutting head (37) having a cutting tool (45) for performing V-shaped groove processing on a work (W) so as to reciprocate in the left-right direction, the fixed clamp device. The (49) is provided with a fixed clamp member (63) for pressing and fixing the work (W), and a fluid pressure cylinder (59) for operating the fixed clamp member (63) is provided. Five
9) is provided with each sensor for detecting the forward end and the backward end of the piston rod (61), and the fixed clamp member (6
3) is provided with a cleaning fluid passage (97) for injecting air to the position where the work (W) is pressed to clean it, and the fixed clamp member (63) starts moving from the unclamped state to the clamped state. The sensor for detecting the backward end is OF
When F is reached, air injection is started, and when the sensor is in the clamped state and the forward end detection sensor is turned on, air injection is stopped.

With the above configuration, in the present invention, the fixed clamp member is in the unclamped state, and the sensor for detecting the backward end is provided.
When it is ON, the fixed clamp member starts moving to the clamped state, and when the above sensor is turned OFF, air injection is started, the fixed clamp member fixes the workpiece and enters the clamped state, and the forward end When the detection sensor is turned on, the air injection is stopped.

Therefore, the portion where the fixed clamp member presses and fixes the work is cleaned by the air jet, and the chips and the like are removed. Therefore, the surface of the work W is not damaged by chips or the like.

Further, since the air is ejected when moving from the unclamped state to the clamped state, cleaning of the clamped portion is reliable and the air consumption is small.

[Brief description of drawings]

FIG. 1 shows a main part according to the present invention. FIG. 3 is an enlarged detailed view of an arrow I in FIG. 3, FIG. 2 is a front view of FIG. 1, and FIG. 3 is an embodiment for carrying out the present invention. It is a side view of a V-shaped groove processing machine. 1 ... V-shaped groove machine 9 ... Work table 37 ... Cutting head 45 ... Bit 49 ... Fixed clamp device 59 ... Fluid pressure cylinder 61 ... Piston rod 63 ... Fixed clamp member 73 ... Forward end proximity switch 75 ... Reverse end proximity switch 97 ... Fluid passage 99 ... Opening port

Claims (1)

(57) [Scope of utility model registration request] 1. A fixed clamp device (49) for pressing and fixing a work (W) on a work table (9),
A V-shaped groove machining machine comprising a cutting head (37) having a cutting tool (45) for machining a V-shaped groove on the work (W) so as to reciprocate in the left-right direction.
The fixed clamp device (49) is provided with a fixed clamp member (63) for pressing and fixing the work (W), and a fluid pressure cylinder (59) for operating the fixed clamp member (63). Each sensor for detecting a forward end and a backward end of the piston rod (61) of the fluid pressure cylinder (59) is provided, and the fixed clamp member (63) injects air to a position where the workpiece (W) is pressed to clean the work. A cleaning fluid passage (97) is provided so that the fixed clamp member (63) starts moving from the unclamped state to the clamped state, and the air is jetted when the backward end detection sensor is turned off. Is started, and when the sensor for detecting the forward end is turned on in the clamped state, the air injection is stopped, and the V-shaped groove processing machine is characterized.