KR100233491B1 - Cutting work device of circular saw - Google Patents

Abstract

[purpose]

Provided is a cut-away tool that can also cut grooves other than cutting.

[Configuration]

By using the disc saw 12, which can be held at the cutting position CP, the non-cutting position NP, and the grooving position GP, respectively, and advancing the disc saw 12 at the cutting position CP, the table 1 After cutting the workpiece (W) on), the circular saw 12 is lowered to the non-cutting position (NP) to retreat and at the same time the workpiece W is conveyed by a certain dimension, and then the circular saw 12 is grooved. The workpiece W is grooved to a predetermined depth by raising it to the breaking position GP and advancing. Then, the disc saw 12 is lowered to the non-cutting position NP to retreat and the workpiece W is retracted. After feeding the predetermined dimension and repeating the process from the grooving process to the predetermined dimension plural times to establish a plurality of grooves G at a predetermined interval in the workpiece W, the disc saw 12 is cut at the cutting position (CP). The workpiece W is cut to a predetermined length L by raising it to advance.

Description

Slotting-cutting processing device by disc saw

1 is a partial cross-sectional side view showing one embodiment of the grooving-cutting apparatus according to the present invention.

2 is a cross-sectional view taken along the line X-X of FIG.

3 is an enlarged cross-sectional view of the stopper block portion.

Figure 4 (a) is a schematic side view of the grooving-cutting apparatus according to the present invention.

4 (b) is a schematic longitudinal sectional view.

5 is a cross-sectional view taken along the line Y-Y of FIG.

6 is a cross-sectional view of a heat sink material produced by the grooving-cutting apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

1: Table 2: Slit for saw driving

3: moving base 5: fluid pressure cylinder for base driving

6: rocking arm 7: upright screw shaft

8: Arm drive fluid pressure cylinder 9: Disk saw rotary drive motor

11: conical joint shaft (conical joint) 12: disk saw

14: rotating shaft 16: abutment

17: support frame 20: stopper block

26: Stopper piece for cutting position setting 27: Stopper piece for grooving position setting

28: fluid pressure cylinder for stopper retraction drive

29: cutting position detector 30: grooving position detector

31: non-cutting position detector

32: workpiece holding feed device (dimension feed device)

37: compression coil spring CP: cutting position of the disc saw

NP: Non-cutting position of circular saw GP: Non-cutting position of circular saw

[Industrial use]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grooving-cutting apparatus for grooving and cutting a workpiece by traveling disk saws, and is used to produce, for example, heat sinks (fins of heat exchangers).

[Conventional Technology and Its Challenges]

Conventional traveling disk saw boards have a workpiece mounted on a table, and the workpiece is cut by a disk saw that protrudes from the table driving slit and travels. This type of disk saw is conventionally used to cut grooves, since only two cutting positions are projected on the upper surface of the workpiece placed on the table, and two non-cutting positions are immersed in the table. I couldn't do it.

Therefore, since the groove attachment material such as the heat sink material was produced entirely by casting, the production cost was very expensive.

An object of the present invention is to provide a grooving-cutting value plant value capable of carrying out grooving in addition to cutting by using a traveling disk saw.

[Means for solving the problem]

The grooving-cutting value factory value according to claim 2 of the present invention is a disc saw 12 which is a traveling material in the front-rear direction of the table 1 and which is a lifting material with respect to the table 1, wherein the blade tip is placed on the table 1. The cutting position CP projecting a predetermined amount α from the upper surface of the workpiece W to be mounted, the non-cutting position NP immersed in the table 1, and protruding from the upper surface of the table 1 but on the table 1 The work piece W is fixed to the disk saw 12 and the table W 1 which can be held at the groove position GP, which is lower than the upper surface of the work piece by a predetermined amount β, and the work W is placed on the table (1). Means 32 for conveying a constant dimension in a direction orthogonal to the traveling direction of the disk saw 12, and having a movable base 3 movable in the front-rear direction below the table 1, The movable base 3 is capable of swinging upward and downward with respect to one end of the conical joint 11 and has a disc saw 2 at its free end. A swinging arm (6) rotatably mounted, a fluid pressure cylinder (8) for interlocking with the arm (6), and elevating the disk saw (12) through the arm (6); (8) cutting position holding means for holding the disk saw 12 at the cutting position CP and the disk saw 12 at the non-cutting position NP through the fluid pressure cylinder 8; And a non-cutting position holding means for holding the disc saw 12 in the slotting position GP through the fluid pressure cylinder 8.

According to the present invention according to the second aspect, the grooving-cutting mill factory value according to claim 3 is provided with a rotatable upright screw shaft 7 which is rotatable in the movable base 3, and the stopper shaft 7 is provided with a stopper. The block 20 is screwed so as to be movable only along the axial direction, and the stopper block 20 has an abutment piece 16 integrally provided at the free end of the swinging arm 6 at the cutting position ( CP position stopper piece 26 for abutting downwards, and groove contact position for retracting with respect to the abutting portion while the abutment piece 16 abuts downward at the groove position GP. It is made by providing the stopper piece 27.

The grooving-cutting value factory value according to claim 4 is, according to the present invention according to claim 3, a compression for removing backlash between the stopper block 20 and an upright screw shaft 7 to which the block 20 is screwed. The coil spring 37 is retrofitted.

[Action]

According to this invention, the front end of the workpiece | work W on the table 1 is cut | disconnected by advancing the disk saw 12 at the cutting starting point from the traveling starting point. After the end cutting process, the disk saw 12 is lowered to the non-cutting position NP to retreat to the traveling starting point and the workpiece W is conveyed by a certain size. Then, the workpiece W is grooved to a predetermined depth by advancing in the state where the disk saw 12 is raised from the non-cutting position NP to the slotting position GP. Following this grooving operation, the disc saw 12 is lowered to the non-cutting position NP to retreat to the traveling starting point, and the workpiece W is conveyed by a certain dimension, and the grooving to the constant conveyance is carried out. By repeating a process a plurality of times, the some groove | channel G is provided in the workpiece | work W at predetermined intervals. Thereafter, by raising the disc saw 12 to the cutting position CP, the work end W is cut at the rear end side to form a plurality of grooves G to form a groove attaching member having a predetermined length L. .

EXAMPLE

Embodiments will be described with reference to the drawings. In FIGS. 1 to 4 showing the grooving-cutting apparatus of the present invention, 1 is a table on which the workpiece W is placed, and this table 1 is placed in front and rear. A saw running slit 2 extending in the direction is provided. 3 is a moving base which is movable below the table 1 in the longitudinal direction of the saw running slit 2, and this moving base 3 is guided by the guide rail 4, and the base pressure fluid pressure cylinder ( 5) can be moved between predetermined strokes.

The movable base 3 is equipped with a swinging arm 6, an upright screw shaft 7, an arm drive fluid pressure cylinder 8, a disk saw rotary drive motor 9 and the like. The swinging arm 6 is conically connected by the conical joint shaft 11 of the bearing base 10, one end of which is provided at the rear end of the movable base 3, and is conical by the expansion and contraction operation of the fluid pressure cylinder 8. It can swing up and down about the joining shaft 11. A disc saw 12 is axially supported on the free end of the swinging arm 6, and the disc saw 12 transmits the rotation of the motor 9 to the saw shaft 14 by a timing belt 13. At the same time as the self-rotating drive, the lifting and lowering motion of the swing arm 6 by the expansion and contraction operation of the fluid pressure cylinder 8 is carried out, and the blade 12 of the disk saw 12 is driven by the fluid pressure cylinder 8. The cutting position CP projecting a predetermined amount α from the upper surface of the workpiece W placed on 1), the non-cutting position NP immersed in the table 1, and the table 1 protruding from the upper surface of the table 1 It is supposed to be held at the trench position GP lowered by a predetermined amount β from the upper surface of the work W of the image 1). In addition, a bracket 15 protrudes from the free end of the swinging arm 6, and a roller-shaped contact piece 16 is conically joined to the end of the bracket 15.

As shown in FIG. 1 and FIG. 2, the upright screw shaft 7 is supported by the rotating material by the vertical and horizontal horizontal frames 18 and 19 of the support frame 17 installed in the front end of the moving base 3, The stopper block 20 is screwed to this upright screw shaft 7. The stopper block 20 has coupling protrusions 20a and 20a formed on both sides thereof and is coupled to the coupling recess grooves 21a and 21a formed on both vertical frames 21 and 21 of the support frame 17 by vertical slide material. have. In addition, the bevel gear 22 is fixed to the lower end shaft portion 7a of the upright screw shaft 7, and the bevel gear 23 spirally engaged with the bevel gear 22 includes a rotation shaft 24 having a handle 25. Stuck to Accordingly, the upright screw shaft 7 is rotated by rotating the rotary shaft 24 by the handle 25, and the stopper block 20 is axially rotated in the non-rotating state by the rotation of the upright screw shaft 7. Shanghai East.

As shown in FIGS. 1 to 3, the stopper block 20 is in contact with the swing arm 6 integrally with the contact piece 16 at the cutting position CP of the disc saw 12. In the cutting position setting stopper piece 26 and the slotting position GP of the disc saw 12, the said contacting piece 16 abuts below and at the same time, the slotting position which can advance and retreat with respect to the contacting part. The setting stopper piece 27 is provided. As for the cutting position set stopper piece 26, the stopper surface 26a of the lower surface is formed in the horizontal surface. In addition, the groove positioning stopper piece 27 is provided below the cutting position setting stopper piece 26, and is brought into contact with the back and forth driving fluid pressure cylinder 28 provided in the stopper block 20. It is possible to move back and forth with respect to the abutting part. That is, this groove-positioning stopper piece 27 advances to the contact part of the contact piece 16 by the expansion operation of the fluid pressure cylinder 28, and the contact piece 16 by the contraction operation. Evacuate at the abutment of. In FIG. 1 and FIG. 3, the state which this stopper piece 27 advanced to the contact part of the contact piece 16 has shown by the solid line, and the state which retreated therefrom is shown by the virtual line. The stopper piece 27a on the lower surface of the groove digging positioning stopper piece 27 is also formed in the horizontal plane.

In addition, as shown in FIG. 1 and FIG. 3, the stopper block 20 detects the cutting position detector 29 and the grooving position GP which detect the cutting position CP of the disc saw 12. As shown in FIG. The groove cutting position detector 30 is provided, and the non-cutting position detector 31 which detects the non-cutting position NP of the disk saw 12 below the detectors 29 and 30 is supported by the support frame 17. It is installed on the side. These position detectors 29, 30 and 31 are constituted by a proximity switch which operates in response to the contact piece 16, for example, and are used to move up and down the swinging arm 6 by the operation of the fluid pressure cylinder 8. When the cutting position detector 29 detects that the disk saw 12 rising and lowering is at the cutting position CP, the operation of the fluid pressure cylinder 8 is stopped by the detection signal, and the disk saw 12 It is held at the cutting position CP. In addition, when the slotting position detector 30 detects that the disk saw 12 is at the slotting position CP, the operation of the hydraulic pressure cylinder 8 is stopped, and the disk saw 12 is positioned at the position GP. When the non-cutting position detector 31 detects that it is held at the non-cutting position NP again, the operation of the fluid pressure cylinder 8 is stopped, and the disk saw 12 is held at the position NP.

On the right side of FIG. 4 (b), the workpiece W is fixed to the table 1 and the workpiece W is fixedly conveyed in a direction perpendicular to the traveling direction of the disk saw 12 along the table 1. The workpiece gripping feeder 32 as a means of doing so is schematically shown. The workpiece gripping and transporting device 32 has a well-known structure, and is screwed with the rotary drive shaft 33 which is disposed in a direction orthogonal to the traveling direction of the disc saw 12 and is linked to a motor (not shown). And a moving frame 34 which can only move in the direction perpendicular to the disk traveling direction by the rotation of the 33, and the moving frame 34 includes a work support 35 which forms a uniform surface with the upper surface of the table 1; And a gripper 36 that presses and grips the work W placed on the work support 35 from above. Therefore, the workpiece | work W fixed and gripped by the gripper 36 by the movement of the movement frame 34 by the rotation of the rotation drive shaft 33 can be conveyed by fixed amount by the predetermined feed amount to the table 1 side.

As shown in FIG. 3, a backlash removal compression coil spring 37 is provided between the upright screw shaft 7 and the stopper block 20 screwed thereto. That is, the stopper block 20 is provided with a hole portion 38 having a diameter larger than the screw hole portion 20a on the lower inner circumferential side thereof, and the compression coil spring 37 is fitted into the hole portion 38, The nut member 39 supporting the lower end of the coil spring 37 is screwed to the upright screw shaft 7. The nut member 39 has an outer diameter smaller than that of the hole 38, and the screw member 39 and the stopper block 20 insert the notch groove 40 provided at the lower end of the stopper block 20 to insert the nut member ( By means of the fasteners 41, such as the vis, which are stopped at 39, relative rotation is impossible and relative axial change is coupled.

The compression coil spring 37 applies an urging force so that the stopper block 20 and the nut member 39 are spaced apart from each other in the axial direction by appropriately tightening the nut member 39. Accordingly, the stopper block 20 is in a state in which the backlash generated between the female screw of the screw hole portion 20a and the male screw of the upright screw shaft 7 is removed, thereby shifting in the axial direction with respect to the upright screw shaft 7. Iii) It is fixed in position without doing anything. This prevents the positional shift of the cutting position setting stopper piece 26 and the groove cutting position setting stopper piece 27, so that the cutting position CP and the cutting position GP of the disc saw 12 are always set correctly. Can be.

5 shows the screw shaft locking means 42 provided at the lower end of the upright screw shaft 7. As shown in FIG.

The screw shaft locking means 42 includes a clamping member 45 having a fitting hole 43 fitted in the upright screw shaft 7 lower end shaft portion 7a so as to be relatively rotatable, and an expansion groove 44 formed therein. A screw thread (46) inserted into the clamp member 45 so as to pass through the expansion groove 44, and a handle 47 for rotating the screw thread 46. The clamp member 45 sandwiches the expansion groove 44 shown in FIG. 5, and one end side thereof is fixed to the frame member 48 integral with the support frame 17. As shown in FIG.

Therefore, when operating the handle 47 to rotate the fastening screw section 46 in the fastening direction, the clamp member 45 clamps the upright screw shaft 7, the lower shaft portion 7a to rotate the upright screw shaft 7. It can be fixed impossible. In addition, when it is necessary to move the stopper block 20 in order to adjust the height of the cutting position CP and the grooving teeth GP, loosen the fastening screw 46 and the expansion groove of the clamp member 45. By opening 44, the upright screw shaft 7 lower end shaft portion 7a is rotatable with respect to the fitting hole 43, and the upright screw shaft 7 can be rotated.

Next, a case in which the heat sink material M shown in Fig. 6 is manufactured for the grooving-cutting processing method by using the grooving-cutting processing apparatus having the above-described configuration will be described with reference to Figs. ), (b) and FIG. 6 will be described.

Prior to processing, the upright screw shaft 7 is rotated by the handle 25 to move the stopper block 20 appropriately so that the cutting positioning stopper piece 26 and the slotting stopper piece 27 are moved. Is set at the cutting position CP and the grooving position GP necessary for the grooving-cutting processing of the work W. In this case, the grooving position GP is a position where the edge of the disk saw 12 that travels is as low as β in the upper surface of the work W, so that at the thickness h of the work W, as shown in FIG. The length minus β is the depth d of each groove G. The groove width of each groove G is determined by the disk t 12 thickness t. The cutting position CP is a position where the edge of the disk saw 12 protrudes upward by α from the upper surface of the workpiece W. However, in this embodiment, the cutting position GP is integrated with the grooving position GP. By setting, the cutting position CP is determined at the same time. Since the non-cutting position NP should just be in the position where the traveling disk saw 12 does not cut | disconnect the workpiece | work W, accurate position setting is not necessary and the non-cutting position NP is set by the detector 31. FIG. It is enough to confirm.

After setting the cutting position setting stopper piece 26 and the digging position setting stopper piece 27 to the required cutting position CP and the digging position GP as described above, the screw shaft locking means 42 The upright screw shaft (7) by means of mounting the workpiece (W) on the table (1) and at the same time protruding the work piece (W) from the cutting position by a suitable amount. 32), and the grooving-cutting process is started.

First, the hydraulic pressure cylinder 28 for stopping and retracting driving the stopper piece is contracted to retract the stopper positioning stopper piece 27 from the solid line city position in FIG. 1 to the virtual line city position, and the disc saw 12 is removed. It is raised by the hydraulic cylinder 8 and held at the cutting position CP. When the disc saw 12 is raised, the cutting position CP is detected by the cutting position detector 29 just before the contact piece 16 contacts the lower surface 26a of the stopper piece 26 for cutting position setting. With the detection signal, the operation of the fluid pressure cylinder 8 is stopped, whereby the disk saw 12 has its cutting position CP in a state in which the contact piece 16 abuts against the lower surface 26a of the stopper piece 26. Will be kept firm).

As described above, in the state where the disk saw 12 is held at the cutting position CP, the movable base 3 is advanced by the base driving fluid pressure cylinder 5 so that the disk saw 12 is first and fourth. (a) Advancing at the starting point in the cutting position CP shown in the figure, thereby cutting the end of the work (W), thereby forming the tip reference surface (S) of the seek tank material (M) as a product. . Thereafter, the hydraulic cylinder 8 is contracted to lower the disk saw 12 through the swinging arm 6. At the time of the lowering, the non-cutting position NP is detected by the detector 31 at the position where the contact piece 16 is close to the non-cutting position detector 31, and the fluid pressure cylinder 8 is detected by this detection signal. The disk saw 12 is held at this non-cutting position NP.

The disk saw 12 having finished the end cutting process as described above is lowered again to the non-cutting position NP, and then the moving base 3 is retracted to the original position by the fluid pressure cylinder 5 and the workpiece is gripped. The conveying device 32 transfers the workpiece W by a predetermined amount (T: saw blade thickness t + groove pitch P), and extends the hydraulic pressure cylinder 28 for driving the stopper piece back and forth. The stopper piece 27 for grooving position setting advances from the virtual line city position of FIG. 1 to a solid line city position.

Then, when the fluid pressure cylinder 8 is extended and the swing arm 6 is moved up, the contact piece 16 is immediately in contact with the lower surface 27a of the groove-positioning stopper piece 27. The grooving position GP is detected by the grooving position detector 30 so that the operation of the fluid pressure cylinder 8 is stopped, whereby the disc saw 12 is brought into contact with the stopper piece 27. In this case, it is reliably held at the groove digging position GP in a state of being in contact with the lower surface 27a. In this state, the moving base 3 is advanced to advance the disc saw 12 at the traveling point at the grooving position GP, thereby grooving the workpiece W to form the first groove G. .

After the first groove G is formed, the disc saw 12 is lowered to the non-cutting position NP, the moving base 3 is retracted, and the disc saw 12 is retracted to the starting point. The workpiece W is conveyed by a predetermined amount T by a predetermined amount T by the workpiece holding and feeding device 32. Thereafter, the disk saw 12 in the non-cutting position NP is raised to the groove cutting position GP again and held at the position GP, and in this state, the moving base 3 is advanced again to advance the disk. The saw 12 is moved forward to dig the workpiece W to form the second groove G. As shown in FIG. Subsequently, the same process as described above is repeated to form the required number of grooves G in the work W at a predetermined interval T.

After forming the last groove (G) to lower the disk saw 12 to the non-cutting position (NP), and retreat to the starting point to transfer the workpiece (W) by a certain dimension and at the same time the fluid pressure cylinder for stopper retraction drive ( 28, the gutter positioning stopper piece 27 is retracted from the solid line position in FIG. 1 to the virtual line position.

In such a state, the disk saw 12 is raised to the cutting position CP, held at the position CP, and the disk saw 12 at this cutting position CP is moved forward from the traveling point to provide the work W. ) Is cut to a predetermined length L to form a heat sink material M as shown in FIG.

When the work W is cut to a predetermined length L and the formation of one heat sink material M is completed, the disk saw 12 is lowered to the non-cutting position NP so that the disk saw 12 is retracted to the starting point. At the same time, the workpiece W is gripped by the workpiece gripper 32 and the workpiece gripper 32 is retracted by the length of the heat sink M, and the next heat sink M ) Prepare for production. In addition, when several heat sink material M is produced continuously by the same workpiece | work W, the above-mentioned end cutting process is unnecessary for the 2nd or later heat sink material M. FIG.

As described above, in this grooving-cutting process, the disc groove 12 is lowered to the non-cutting position NP inside the table 1 and retreats to the traveling starting point whenever the cutting and grooving is performed. As a result, the saw blade does not rub the cutting surface and the grooving surface of the work W again, so that the machining surface can be kept beautiful and the saw blade can be extended for a long time.

[Effects of the Invention]

According to the grooving-cutting apparatus according to claim 2, since the traveling disk saw is held at three positions, respectively, at the cutting position, the non-cutting position, and the grooving position, it is possible to perform grooving in addition to cutting processing on the same workpiece. The groove attaching member of a predetermined length having a plurality of grooves such as a heat sink material can be easily manufactured. In addition, according to this apparatus, the disk saw is lowered to the non-cutting position for each cutting and grooving process and returns to the traveling starting point, so that the cutting blade and the grooving surface of the workpiece are not rubbed again, so that beautiful machining is possible. Not only can you maintain the surface, but you can extend the life of the saw blade.

In addition, both cutting and grooving can be performed on the same workpiece, and only cutting or grooving can be performed.

According to the grooving-cutting processing apparatus according to claim 3, it is possible to easily and surely set the cutting position and the grooving position.

According to the grooving-cutting apparatus according to claim 4, the backlash generated between the female screw on the stopper block side and the male screw on the upright screw shaft side is removed, and the stopper piece for straight cutting position setting and the stopper position setting stopper are removed. It is possible to prevent the misalignment of the convenience and to set the cutting position and the slotting position of the disk saw all the time.

Claims (3)

A disk saw capable of traveling in the front-rear direction of a table and lifting up and down relative to the table, wherein the cutting edge protrudes a predetermined amount from the upper surface of the workpiece placed on the table, the non-cutting position immersed in the table, and protrudes from the upper surface of the table. A disc saw that can be held in a slotting position lower than a predetermined amount above the workpiece surface on the table, and a means for fixing the workpiece to the table and conveying the workpiece along the table in a direction perpendicular to the traveling direction of the disk saw. And a movable base movable below and below the table in a forward and backward direction, wherein the movable base is swingable up and down about a conical joint of one end, and a disk saw is rotatably mounted at a free end. An arm and a fluid pressure chamber interlocked with the arm and lifting the disk saw through the arm Furthermore, cutting position holding means for holding the disc saw in the cutting position through the fluid pressure cylinder, non-cutting position holding means for holding the disc saw in the non-cutting position through the fluid pressure cylinder, and the fluid pressure A grooving-cutting processing apparatus according to a disc saw, characterized by comprising a grooving position holding means for keeping the disc saw in a grooving position through a cylinder. According to claim 1, wherein the movable base is provided with a rotatable upright screw shaft, the stopper block is screwed to the upright screw shaft so as to be movable only along the axial direction, and the stopper block is integral to the free end of the swinging arm. Cut-off stopper piece for abutment pieces installed at the cutting position abutting downward from the cutting position; Grooving-cutting processing apparatus by a disc saw, characterized in that made by installing. 3. The gutter-cutting apparatus according to claim 2, wherein a compression coil spring for removing backlash is formed between the stopper block and the upright screw shaft to which the block is screwed.