JP2001169427A - Member cutting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop a member cutting apparatus which can accurately process a covering material at the connecting end to a conic shape while keeping a high voltage cable in the stationary condition. SOLUTION: This member cutting apparatus is composed of a core cable holding part (X) for holding the core cable of a cable (35), a cable fixing mechanism (Y) for holding a covering material, a reciprocal movement body (F) on which a rotating body (A) is mounted to rotate around the cable (35), a reciprocal operation mechanism (B) for gradually changing the moving distance (L) of the rotating body (A) for realizing the reciprocal movement along the cable (35), a covering material cutting part (4) for cutting out the covering material (35b) through rotation with the rotating body (A), a cutting part moving mechanism (D) for moving the covering material cutting part (4) toward the core cable (35) or isolating the same from the core cable (35a), and a supporting member (32) arranged to move in the longitudinal direction of the cable (35) independent of the rotating body (A), while supporting the external circumference of the cable (35) to support the external circumference of the cable (35) at the area between the covering material cutting part (4) and cable fixing mechanism (Y).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member cutting apparatus for machining a coating material into a conical shape, that is, a pre-process for a connecting portion when a high-voltage electric wire is laid.

[0002]

2. Description of the Related Art When connecting long-distance high-voltage electric wires, laying work is performed while connecting high-voltage electric wires. At this time, the end of the covering material that covers the core wire is cut into a conical shape, the exposed core wires are butted against each other, connected with a sleeve, and then the connection portion is wound with an insulating member. However, since the high-voltage wires are very thick, long and heavy, the high-voltage wires cannot be rotated when the coating material is cut into a conical shape. The material was scraped from its surroundings and then sanded to make a somewhat accurate cone.

[0003] As described above, in the conventional method, since the operation is manually performed by an operator, not only skill is required but also the coating material cannot be accurately cut into a conical shape, and the work time required for shaving the hard coating material is reduced. However, there has been a problem that the efficiency of the connection operation of the high-voltage wires is very poor. Further, as described above, the high-voltage electric wire is thick and very heavy, so that there is a problem that a worker needs to perform extremely heavy labor to perform manual work.

Therefore, the inventor has proposed an automatic member cutting device as disclosed in Japanese Patent Application Laid-Open Nos. 7-298442 and 10-322836. The former has significantly improved the work of cutting the covering material of high-voltage electric wires into a conical shape.However, (a) the cutting drum repeats normal and reverse rotations during cutting, so it must be stopped each time. The disadvantage of slow speed and (b)
Since the drive motor is installed in the cutting drum, there is a mechanical problem that a complicated and troublesome mechanism such as a power supply device using a slip ring must be adopted,
(c) The disadvantage that the weight of the rotating part becomes too large and high-speed rotation is not possible, and (d) The problem that rough cutting with a large amount of cutting is not possible due to the small amount of cutting due to the cutting tool. There was considerable room for improvement.

Therefore, the latter has been proposed anew. However, (e) a cutter rotating mechanism for rotating the cutter along the outer circumference of the cable, and (f) a cutter rotating mechanism for moving the cutter toward the core wire in accordance with the cutting amount. The problem is that the gear structure of the cutting unit moving mechanism that moves by pitch becomes too complicated, and (g) the cutter rotating mechanism and the cutting unit moving mechanism are provided at both ends of the device, so the cutter is actually moved. There is a problem that a plurality of pillar members for traversing the inside of the device and the internal structure becomes complicated, and (h) the support member is arranged close to and integrally with the cutter so that it rotates together with the cutter. Therefore, when the load at the time of cutting is applied to the cable and the cable is bent, the supporting member also moves in the bending direction, and the cable escapes from the cutter, and there is a problem that the cutting is not performed sufficiently.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a member cutting device capable of accurately machining a coating material at a connection end of a high-voltage electric wire in a stationary state while leaving the high-voltage electric wire stationary. It is an object of the present invention to provide a high-performance member cutting device that can perform various settings, can perform freely from rough machining to precision finishing, can perform high-speed machining, and has a simple structure.

[0007]

According to a first aspect of the present invention, there is provided a member cutting apparatus comprising: (a) a cable (35) in which a core wire (35a) is covered with a covering material (35b); ) The core wire
A core holding portion (X) for holding (35a), (b) a cable fixing mechanism (Y) for holding the outer periphery of the covering material (35b), and (c) a turn for rotating around the cable (35). The reciprocating moving body (F) on which the moving body (A) is mounted, and (d) the moving distance (L) of the rotating body (A) are gradually changed to reciprocate the rotating body (A) along the cable (35). A reciprocating mechanism (B) for moving, (e) a coating material cutting part (4) that rotates together with the rotating body (A) to cut a coating material (35b) of the cable (35), and (f) coating material cutting. Cutting part moving mechanism (D) that moves the part (4) toward the core wire (35a) or separates it from the core wire (35a)
(G) the rotating body while supporting the outer periphery of the cable (35).
(A) is disposed independently of the cable (35) movably in the longitudinal direction of the cable (35), the coating material cutting part (4) and the cable fixing mechanism (Y)
A support member (32) for supporting the outer periphery of the cable (35) between
It is characterized by being composed of

According to this, the coating material cutting section (4) reciprocates as described later while rotating around the cable (35) by the rotating body (A) mounted on the reciprocating body (F). The outer periphery of the cable (35) is cut into a conical shape, while the supporting member (32) closes the processing portion in a state where the outer periphery of the cable (35) is stopped independently of the coating material cutting portion (4). Since the outer periphery is supported, all the cutting force from the coating material cutting portion (4) applied to the cable (35) during cutting is supported by the support member (32). As a result, during the cutting operation, the support member (32) independent of the coating material cutting section (4) keeps the cable (35) constantly at the center of rotation, and is cut into a conical shape without chipping. Will go.

The reciprocating operation can be described in more detail.
(A) shows that the moving distance (L) from the tip of the coating material (35b) gradually changes by the reciprocating operation mechanism (B) (for example, as shown in FIG. Reciprocating movement of the covering material (35b) by the covering material cutting section (4) changes (for example, as shown in FIG. Lumber (35
As a result, the processed portion of the coating material (35b) is cut into an accurate conical shape. During this time, the cable (35) is always held at the center of rotation by the function of the support member (32), and is cut into a conical shape without being scrambled.

As described above, since the coating material cutting section (4) is configured to rotate around the cable (35) by the rotating body (A), the cable (35) is kept stationary. Thus, the covering material (35b) is scraped off, and the working of the covering material (35b) becomes very simple.

A second aspect of the present invention defines in more detail a cutting mechanism including the "coating material cutting portion (4)" of the member cutting device according to the first aspect of the present invention. , (A) a rotating body (A), and (b) a cutting section attached to the rotating body (A) and arranged so as to be able to approach and separate from a cable (35) inserted through the rotating body (A). It is characterized by comprising a moving mechanism (D) and (c) a cylindrical coating material cutting section (4) attached to the cutting section moving mechanism (D).

According to this, the cylindrical coating material cutting section (4)
Cuts the covering material (35b) of the cable (35) with
(Z) is stored as it is in the coating material cutting part (4),
No spills around.

"Claim 3" is a more detailed description of the "cutting section rotating mechanism (C) and the cutting section moving mechanism (D)" of the member cutting apparatus according to any one of claims 1 and 2. Rotating body (A)
Rotating mechanism for cutting part around cable (35)
(C) and the coating material cutting part (4) attached to the rotating body (A)
Cutting section moving mechanism that moves the tool closer to and away from the cable
(D) are (a) first and second control motors (9) and (10) installed on a reciprocating moving body (F) on which a rotating body (A) is mounted, and (b)
First and second driven pulleys which are independently rotated at a constant speed or different peripheral speeds by the first and second control motors (9) and (10).
(14) (15), (c) the cutter feed gear (6) rotating together with the second driven pulley (15), and (d) meshing with the cutter feed gear (6), and the first driven pulley (14) The attached gear train (17a) (17b) (18a) (18b) (31a) (31b) and gear train (17a) (17
b) (18a) (18b) (31a) (31b) The cutter base moving screw (30a) (30b) which rotates by rotation of (31), and (e) coating material cutting part (4)
And a cutter base (27) that comes close to and away from the cable (35) by rotation of the cutter base moving screws (30a) (30b).

According to this, the first and second control motors (9) (1)
0) in the same rotation direction and at the same peripheral speed, the first,
(2) The driven pulleys (14) and (15) and the cutter feed gear (6) rotate in the same rotational direction at the same peripheral speed, and the cutter base moving screws (30a) and (30b) do not rotate. Therefore, the cutter base (27) on which the coating material cutting section (4) is mounted does not move.

On the other hand, the first and second control motors (9) and (10)
Are the same, but when the rotation speed is changed, the peripheral speeds of the second driven pulley (15) and the cutter feed gear (6) are relatively high with respect to the first driven pulley (14). As a result, the gear train (17a) (17b) mounted on the first driven pulley (14) and meshing with the cutter feed gear (6) revolves around the cutter feed gear (6) while rotating. Then, the cutter base moving screws (30a) (30b) rotate. As a result, the cutter base (27) on which the coating material cutting part (4) is
The coating material (35b) is scraped off in the vicinity of (35), or moves in the separating direction. That is, the first and second control motors
(9) The amount of cut can be freely set by the rotation speed control of (10). Further, since the rotating operation itself of the rotating body (A) is performed by the first control motor (9), the setting of the cutting amount of the coating material cutting unit (4) and the rotating operation are performed by the first and second control motors (9). Control motor
(9) Can be done in (10).

In addition, the first and second control motors (9) and (10)
Is mounted on the reciprocating body (F) and reciprocates together, so the cutting mechanism composed of the `` cutting part rotating mechanism (C) and cutting part moving mechanism (D) '' as in the conventional example is complicated. do not become.

[0017] Claim 4 relates to a tubular duct (36) provided in the member cutting device according to any one of claims 1 to 3, and a cutting chip cutting mechanism (G) installed therein. In further detail, a tubular duct (36) and a cutting chip cutting mechanism (G) installed therein are provided with (a) a tubular duct disposed around the coating material cutting portion (4). The body (37) and (b) a rotating ring arranged on the inner periphery of the duct body (37), rotating together with the coating material cutting part (4), and introducing cutting chips (Z) into the duct body (37). (38), (c) a discharge tube (38a) connecting the rotating ring (38) and the coating material cutting portion (4), and (d) a discharge tube (38
a) a waste cutting blade (34) disposed so as to face the outlet of (a).

The coating material cutting section (4) rotates around the cable (35) to cut off the coating material (35b).
With this configuration, the shavings (Z) are immediately stored in the tubular duct (36), and the shavings (34)
, The cutting chips (Z) are not scattered around, and the cutting chips (Z) stored in the tubular duct (36) are cut finely, so that the collection becomes easy.

[0019]

1 to 17 are views showing an embodiment of a member cutting device according to the present invention. The main parts of the member cutting device include a chassis (S), a reciprocating mechanism (B), and a reciprocating body ( F),
It comprises a cable guide mechanism (K), a cable fixing mechanism (Y), and a core fixing mechanism (X).

The chassis (S) includes a skeleton assembled at an angle, a base (1) stretched on the skeleton, and a pair of base proximal side walls (1a1) (1a1) ( 1a2) and the base tip side wall (1b).

The reciprocating mechanism (B) mainly includes a main drive motor (3), a guide rail (7a), and the main drive motor (3).
It comprises a main feed screw (7b) connected to (3) and a nut (8b) screwed on the main feed screw (7b). One (or two) guide rails (7a) are laid on the base (1) along its longitudinal direction, and the nuts (8b) are recessed on both inner side surfaces of the guide rail (7a). It slides along the provided guide groove (7a1).
When two guide rails (7a) are laid, a main feed screw (7b) is arranged on one of the guide rails (7a).

The main drive motor having a speed reduction mechanism and an encoder incorporated in the front end side wall (1b) so as to freely rotate forward and reverse.
(3) is installed, a main feed screw (7b) is attached to the rotation shaft of the main drive motor (3), and the rotational force of the main drive motor (3) is transmitted to the main feed screw (7b). It is supposed to be.

The reciprocating moving body (F) is mainly composed of a frame
(2), consisting of a rotating body (A), a cutting part rotating mechanism (C) and a cutting part moving mechanism (D), a cutter cutting amount detection gear mechanism (H), and a cutting waste cutting mechanism (G). .

The frame (2) is of a hollow plate shape, and has a cutter cutting amount detecting gear mechanism (H) housed therein, and a cylindrical main shaft (11) is rotatable via a bearing at the center thereof. The frame (2) is provided with a large-diameter hole (11a), and a nut (8b) is mounted on the bottom of the frame (2) via a slide block (8a). A main feed screw (7b) is screwed into the nut (8b), and reciprocates along the guide groove (7a1) in accordance with the forward / reverse rotation of the main feed screw (7b). . The main feed screw (7b) is rotatably supported by bearings between the base proximal side and the distal side wall (1a1) (1b), and is driven to rotate by the main drive motor (3). .

Next, the cutting section rotating mechanism (C) and the cutting section moving mechanism (D) will be described. The first control motor (9), which is the driving source of the cutting part rotating mechanism (C), and the second control motor (10) that reciprocates the coating material cutting part (4) are symmetrical at the lower part of the frame (2). , And a first drive pulley (12) and a second drive pulley (13) are respectively connected to the rotation shaft. The first drive pulley (12) and the second drive pulley (13)
Are the first and second transmission belts (16
a) A first driven pulley (14), a second driven pulley via (16b)
Connected to (15) respectively.

The second driven pulley (15) is fixed to the main shaft (11), whereas the first driven pulley (14) is rotatably mounted on the main shaft (11) via a bearing. I have. Further, the first driven pulley (14) and the second driven pulley (15)
A cutter feed drive gear (6) is disposed between the drive shaft and the main shaft (11).

A pair of cutter feed transmission gears (17a, 17b) having a small diameter mesh with the cutter feed drive gear (6). The rotary shaft of the cutter feed transmission gears (17a) (17b) is rotatably and penetratingly mounted on a first driven pulley (14a) via bearings, and a drive worm gear ( 18a and 18b are fixed respectively.

Cutting material cutting section via cutter base (27)
The disk (26) to which (4) is attached is fixed to the first driven pulley (14) and rotates together with the first driven pulley (14). A circular hole (26) through which a cable (35) is inserted is provided at the center of the disc (26).
a) is formed, and a pair of base guides (28a) (28b), which are disposed on both sides of the cutter base (27), have a substantially U-shaped cutter base (27) so as to surround the round hole (26a). Is slidably held. And the base guide (28a)
(28b) and a pair of L-shaped screw mounting blocks (29a) (29
b) is disposed on the disk (26), and the cutter base moving screw (30) is rotatably mounted on the L-shaped screw mounting blocks (29a) (29b).
a) One end of (30b) is attached, and the other end of the cutter base moving screw (30a) (30b) is attached to both arm parts (27a) (27b) of the cutter base (27) so as to be able to advance and retreat. Have been.

Further, driven worm gears (31a) (31b) meshed with the drive worm gears (18a) (18b) are engaged with the cutter base moving screws (30a) (30b).
(18a) (18b), driven worm gear (31a) (31b)
The cutter base moving screws (30a) (30b) are rotated through to move the cutter base (27) forward and backward.
The drive worm gears (18a) and (18b) are disc-shaped (26)
And is engaged with the driven worm gears (31a) (31b).

The coating material cutting part (4) is an L-shaped cylindrical one,
A circular blade (4a) is attached to the tip. The cutter edge is fixed to the cutter base (27), and the edge of the circular blade (4a) is disposed substantially tangentially to the outer periphery of the columnar cable (35), and the edge of the circular blade (4a) is a covering material of the cable (35). (35b) so as to bite into the cable (35) side
The coating material (35b) of (35) can be cut so as to peel. The cut swarf (Z) passes through the cylindrical coating material cutting portion (4), and further through an outlet cylinder (38a) slidably connected to the coating material cutting portion (4) in the insertion direction, to be described later. The air is discharged to the duct (36).

The annular duct (36) is a hollow annular one,
It is fixed to the base guide (28) or the disk (26).
The discharge cylinder (38a) is fixed to the inner peripheral side, and a flexible duct connecting portion (39) of the annular duct (36) has a flexible surface on the base proximal side wall (1a) side. The duct (40) is connected, and the cutting chips cut short by the cutting blade (34) of the cutting chip cutting mechanism (G) described later are discharged into the flexible duct (40). ing. The flexible duct (40) is formed of a flexible square pipe, is laid on the base (1), and one end thereof is connected to the flexible duct connection portion (36) of the annular duct (36) as described above. 39), the other end thereof is projected outward from the base distal end side wall (1b) on the base proximal side wall (1a) side, and can bend in accordance with the movement of the annular duct (36), and Waste cutting blade
The cutting chips cut short in (34) are discharged outside the apparatus.

The cutting waste cutting mechanism (G) comprises the above-mentioned waste cutting blade (34) and a waste cutting motor (33) for driving the same. The dust cutting motor (33) is attached to the annular duct (36), and the dust cutting blade (34) is arranged in the annular duct (36) so as to face the flexible duct connection portion (39). The cutting waste sent to the flexible duct connecting portion (39) is cut into short pieces and discharged into the annular duct (36).

Next, the structure of the annular duct (36) will be described. As shown in FIG. 16, a duct main body (37) having a U-shaped cross section with an open inner peripheral surface, and closing the open inner periphery of the duct main body (37) and sliding / rotating along the inner periphery And a sliding ring (38b) provided on both sides of the rotating ring (38) and an outer cover (38c). A discharge tube (38a) is attached to the rotating ring (38), and is configured to rotate together with the rotating ring (38). Also, the rear end portion of the coating material cutting part (4) is slidably inserted into the discharge cylinder (38a), and the coating material cutting part
The movement of (4) is absorbed in this part. Although not shown in the drawing, the coating material cutting portion (4) is connected to the discharge tube (38a) by a bellows-like device.

The dust cutting motor (33) is attached to the outer surface of the annular duct (36), and a part of the dust cutting blade (34) attached to the rotating shaft is connected to the annular duct (36). Chips which are inserted into the annular duct (36) through the perforated slit (36a) and are arranged at the discharge port of the discharge tube (38a), and are discharged from the discharge tube (38a) (Z) is cut finely.

Next, the cutter cutting amount detecting gear mechanism (H) will be described. First control motor (9), second control motor (10)
Are the first driving pulley (12) and the second driving pulley as described above.
(13), and at the same time, the first control gear (41) and the second control gear (45) are also coaxially fixed. The first control gear (41) meshes with a first intermediate gear (42), and the first to third intermediate gears (42), (43), (44) mesh with each other in this order. And the final intermediate gear (4
4) is fixed to a plate (44b) attached to an internal gear (48) meshing with the outer periphery of the planetary gears (50), (51), (52) so as to enclose the planetary gears (50), (51), (52).

On the other hand, the second control gear (45) is an intermediate gear (46) (4
7) in order. The rotating shaft (47a) of the intermediate gear (47) is rotatably inserted through the intermediate gear (44), and is further disposed at the center of the planetary gears (50), (51), (52), and has a planetary gear (50). )(Five
1) The center hole (4) of the center gear (49) meshing with (52)
9a) is inserted and fixed.

The planetary gears (50), (51), (52) are rotatably held on rotating shafts (50a), (51a), (52a) projecting from the planetary gear mounting plate (54), respectively. It rotates around the central gear (49) integrally with the planetary gear mounting plate (54). Then, the rotation shaft (55a) of the speed reducer (55) is fixed to a boss (53) provided on the outer surface of the planetary gear mounting plate (54),
Further, an encoder (56) is attached to the speed reducer (55). The speed reducer (55) is fixed to the frame (2). Incidentally, the speed reducer (55) reduces the rotation amount of the boss (53) and transmits the reduced rotation to the encoder (56).
Is set so that the rotation angle does not exceed 180 ° in reciprocation. The rotation angle of the encoder (56) is 18
If the angle exceeds 0 °, the rotation start position of the encoder (56) becomes unknown.

Next, the cable guide mechanism (K) will be described. The cable guide mechanism (K) is connected to the base proximal side wall (1a
The reciprocating body is mounted on a free slider (5) which is disposed parallel to the annular duct (36) on the 1) side and slidably disposed on the guide rail (7a). It reciprocates on the guide rail (7a) independently of (F).

That is, the free slider (5) of the cable guide mechanism (K) has a through hole (5a) which is not screwed with the main feed screw (7b), and the slide block on the frame (2) side is formed. (8a) comes into contact with the free slider (5) and moves together with the slide block (8a) only when the free slider (5) is moved in the pushing direction. In the opposite direction, only the frame (2) moves and the cable guide mechanism (K)
Will stay in that position.

Next, the support member (32) mounted on the cable guide mechanism (K) will be described. The support member (32) is a roller-shaped member attached to the tip of the slide arm (60) and is in rolling contact with the outer periphery of the cable (35). The cable (35) is inserted into a large-diameter through hole (63) drilled in the support plate (61),
A radial guide groove (62) formed in the support plate (61) by equally dividing the slide arm (60) around the large diameter through hole (63).
It is slidably disposed inside.

The rotating ring plate (6) covers the slide arm (60) and rotates about the large-diameter through hole (63).
4) is attached to the support plate (61). The arc is formed in the rotating ring plate (64), and one end has a large-diameter through hole.
The guide projection of the slide arm (60) is in the expansion / contraction guide groove (65), the other end of which is further away from the large-diameter through hole (63), near the (63).
(66) is fitted, and by rotating the rotating ring plate (64), the slide arm (60) is inserted into the radial guide groove (62).
It is designed to slide along the scale.

Next, the core holding portion (X) for fixing the core (35a) of the cable (35) will be described. Core wire holding part (X)
Is installed on the base tip side wall (1b), and a core wire mounting boss (70) is fixed inside the base tip side wall (1b), and a core wire fastening bolt plate (71) is fixed outside. A tightening tube (73) is fitted into a core wire insertion holding tube portion (72) projecting inward from the core wire mounting boss (70). A tightening screw (74) screwed on the plate (71) is attached to the tightening cylinder (73), and the tightening screw (74) is screwed and retreated,
The tightening tube (73) is moved forward and backward, and the core wire insertion holding tube portion (7
Tighten or loosen the tapered portion (75) of (2) to remove the core wire (3).
Tighten and release 5a). (76) is a split groove, which narrows when tightening, and opens when releasing.

Next, the cable fixing mechanism (Y) for holding the outer periphery of the covering material (35b) will be described. Base proximal side wall (1a
1) (1a2) has a large-diameter through hole (80
a) and (80b) are drilled so as to coincide with each other, and are vertically opposed so as to sandwich this large-diameter through-hole (80a) (80b) from above and below between the base proximal side walls (1a1) and (1a2). A pair of V-blocks (83) and (84) having V-grooves (81) and (82) formed on the surface are provided so as to be able to approach and separate. On both sides of the V-blocks (83) and (84), left and right screws (8
5) (86) is screwed, and the pair of V-blocks (83) and (84) are moved toward and away from each other by rotating the left and right screws (85) and (86).

Both ends of the right and left screws (85) and (86) are screw support blocks (87) disposed between the base proximal side walls (1a1) and (1a2).
Are installed at four locations. Further, a worm gear (88) is attached between the screw support block (87) of the left and right screws (85) and (86) and the V blocks (83) and (84), and the base base end side wall (1a1) ( 1a2) Worm gear rotatably arranged between
(89). The rotating shaft (90) attached to the worm gear (89) penetrates the outer base base side wall (1a2) and projects outward, and a small-diameter synchronous rotating gear (91) is attached to the projected end. I have. The four small-diameter synchronous rotating gears (91) mesh with a large-diameter ring gear (92) rotatably disposed on the outer surface of the outer base base end wall (1a2). ), The pair of V blocks (83) and (84) can be moved toward and away from each other.

Next, an example of a cutting procedure in the apparatus of the present invention will be described. As can be seen from FIGS. 18 and 19, the amount of reciprocation of the coating material cutting portion (4) at the tip of the coating material (35b) is gradually changed (that is, in FIG.
Conversely, in the case of FIG. 18, cutting is performed while reciprocating (shorterly), and the covering material (35 b) at the end of the cable (35) is tapered. Here, the cutting distance is indicated by (L), and when the cutting conditions change, (L1) → (La) → (L2) → (Lb) → (L
3) → …… →→ (Ln) to indicate the portion with a branch number. The point where the cutting conditions change is indicated by (P), and each code is given a lowercase number or a branch number.

First, the case of FIG. 18 will be described. In this case, the moving distance (L) of the covering material cutting section (4) from the tip (P0) of the covering material (35b) of the cable (35) is the first reciprocating cutting operation (L1 → L
a → L2 → Lb) and the second reciprocating cutting operation (L3 → Lc → L4 → Ld). When the shortest part (Le1) is cut, it is cut up along the taper (Le2), and finally the outer surface of the covering material (35b) is distanced (Ln-
While cutting only 1), the coating material cutting portion (4) is separated from the coating material (35b) while shaving, and a short tapered portion (Ln) is formed to complete the cutting process.

Next, the case of FIG. 19 will be described. In this case, the coating material cutting part (4) is replaced with the coating material (35b), contrary to FIG.
The reciprocating movement distance (L) at the end of the first reciprocating cutting work [L
1 → La → 1 pitch cut → (-La) → (-L1)], the second reciprocating cutting work [L1 → Lb → cut → (-Lb) → (-L1)] Going longer, (L1 → Ln-2)
After finishing the cutting, finally put the outer surface of the covering material (35b) toward the base side.
(Ln-1) only
(4) is separated from the covering material (35b) to form a short tapered portion (Ln), and the cutting is completed.

As shown by the imaginary lines in FIGS. 18 and 19, the covering material (35b) at the end of the cable (35) before cutting is stripped off, and the core wire (35a) is exposed from the end. . Of course, the tip of the covering material (35b) is rectangular and is not cut in a tapered shape.

Next, the operation of the device of the present invention will be described. Now, the large-diameter through-holes (80a) (80b) of the base tip side wall (1a1) (1a2) are inserted between the V-blocks (83) and (84) that open the cable (35) vertically from the cable fixing mechanism (Y) side. ), And then insert the core wire (35a) into the core insertion cylinder (72) of the core fixing mechanism (X) through the cable guide mechanism (K) and the large-diameter through hole (11a) of the main shaft (11).

Thereafter, on the cable fixing mechanism (Y) side, when the large-diameter ring gear (92) is turned, the gear trains (91), (89), and (88) meshing with it rotate. The V-blocks (83) and (84) are moved in directions approaching each other to clamp and fix the cable (35). Since the gear trains (91), (89) and (88) use a worm gear mechanism, they do not loosen even after releasing the hand from the large-diameter ring gear (92) after tightening.

Next, the core wire (35a) is to be tightened by the core wire fixing mechanism (X). When the tightening screws (74) are evenly tightened, the tightening cylinder (73) is attached to the core wire. Move to the boss (70) side. Inner surface of tightening cylinder (73) and core insertion holder
Since the outer surface of (72) is tapered, the tightening cylinder (73)
As it moves toward the core wire mounting boss (70).
Is tightened, and the core insertion holder (72) is tightened. In this way, the cable (35) is fixed at both ends to the core wire fixing mechanism (X) and the cable fixing mechanism (Y).

Subsequently, an intermediate portion of the cable (35) is supported by the cable guide mechanism (K). That is, when the rotating ring plate (64) is rotated, the guide projection (66) of the slide arm (60) is fitted into the arc-shaped expansion / contraction guide groove (65) formed on the rotating ring plate (64). In accordance with the rotation of the rotating ring plate (64), the slide arm (60) moves toward the cable (35) along the radial guide groove (62),
The roller-shaped holding member (32) contacts and holds the cable (35) from three directions. Since the rotational movement direction of the holding member (32) matches the longitudinal direction of the cable (35), the cable guide mechanism (K) freely moves in the longitudinal direction of the cable (35). In this way, the vicinity of the cutting part is covered with the coating material cutting part (4)
And keep it independent.

In this state, the main drive motor (3) is operated to move the reciprocating moving body (F) to the home position (0 point sensor (10
(0) installation site) and insert the cutting edge (4a) into the covering material (35
b) to the tip of the main drive motor
Stop (3). At that time, the free slider (5) of the cable guide mechanism (K) comes into contact with the nut (8b) of the moving frame (2) by the operation of the main drive motor (3) and is pushed out in the moving direction, and It stops according to the nut (8b) which stops when the motor (3) stops.

In this state, the first and second control motors (9) and (10) are operated at the same rotational speed and the main drive motor (3) is stopped. Since the main drive motor (3) is in a stopped state, the main feed screw (7b) does not rotate, and the reciprocating body (F) is in the home position [that is, the coating material cutting section (4).
At the origin (O) corresponding to the cutting start position (P0) of the cutting edge (4a).

The home position of the reciprocating member (F) is detected by an origin detection sensor (100) installed on the base (1),
This is performed with the nut (8b) and the origin block (101) mounted on the nut (8b). That is, the reciprocating body (F) is moved to the left in FIG.
The point where the origin block (101) matches the origin detection sensor (100) is set as the start point of the reciprocating body (F), and the point (O) moved to the right by a certain distance (102) is set as the cutting start position. Is the way. The point (O) is the covering material of the cable (35), for example.
At the tip of (35b) (of course, it may be at a different position),
(4a) is the stop point. The amount of movement of the reciprocating body (F) is detected by an encoder (3a) installed on the main drive motor (3).

Alternatively, the tip of the covering material (35b) of the cable (35) may be detected and the position may be used as the cutting start position (P0), or the amount of protrusion of the core wire (35a) of the cable (35) may be kept constant. And the cutting start position (PO) may be fixedly determined. If the cutting start position (PO) is not fixed,
The tip detection position in (35b) may be set as the cutting start position (PO). In any case, the cutting operation is started after the reciprocating body (F) moves to the cutting start position (PO).

After the reciprocating member (F) has moved to the cutting start position (PO) (of course, it may be before moving to the cutting start position (PO)).
The first and second control motors (9) and (10) are operated at the same rotational speed as described above while the cutting edge (4a) of the coating material cutting section (4) is separated from the coating material (35b). During this time, the support member (32) holds the outer periphery of the cable (35) in three directions near the coating material cutting portion (4).

As a result, the first control motor (9) side
The drive pulley (12a) operates, and the first driven pulley (14) rotates via the first transmission belt (16a). On the other hand, on the second control motor (10) side, the second control drive pulley (12
b) operates, and the second driven pulley (15) rotates via the second transmission belt (16b). The first driven pulley (14) and the second driven pulley (15) rotate in the same direction at the same peripheral speed.

The first driven pulley (14) has a coating material cutting section (4).
Since the disk body (26) on which is mounted is fixed, the coating material cutting section (4) is rotated by the first driven pulley (14) and the cable is cut.
It will rotate around (35). At this point, the cutting edge (4a)
Since is separated from the cable (35), the covering material (35b) is not cut.

On the other hand, since the second driven pulley (15) and the cutter feed gear (6) are fixed to the main shaft (11), the cutter feed gear (6) and the main shaft (11) are connected to the second driven pulley (15). ) And rotate. As described above, a pair of cutter feed transmission gears (17a) and (17b) are meshed with the cutter feed gear (6), respectively, and the first driven pulley (14) and the second driven pulley (15) Are rotating in the same direction at the same peripheral speed, there is no relative angle shift between them, and therefore the cutter feed transmission gear
(17a) and (17b) do not rotate, and rotate together with the cutter feed gear (6) while meshing with the cutter feed gear (6).

As described above, the first driven pulley (14) and the second driven pulley (14)
If the driven pulley (15) is rotating in the same direction at the same peripheral speed, the cutter feed transmission gears (17a) and (17b) do not rotate, so the cutter base moving screw (D) of the cutting part moving mechanism (D) 30a) (3
There is no rotation of 0b), and therefore, there is no movement of the coating material cutting part (4), and it rotates around the cable (35) while maintaining its position.

On the other hand, in the cutter cutting amount detecting gear mechanism (H), the first and second control motors (9) and (10) rotate in the same direction at the same rotation speed, so that the first and second control motors (9) and (10) rotate. 9) (10)
, The first and second control gears (41) and (45) rotate in the same direction at the same peripheral speed. On the first control gear (41) side, the intermediate gear (44) starts rotating via the intermediate gears (42) and (43).
Since the intermediate gear (44) is fixed to the internal gear (48) via the plate (44b), the rotation of the intermediate gear (44) causes the internal gear (48) to rotate.

On the other hand, on the second control gear (45) side, the intermediate gear
The intermediate gear (47) rotates via (46). Since the intermediate gear (47) is connected to the center gear (49) meshing with the planetary gears (51), (52) and (53) via the rotation shaft (47a), the intermediate gear
The central gear (49) rotates with the rotation of (47).

At the same time, since the planetary gears (51), (52), (53) are also meshed with the internal gear (48), the planetary gears (51), (52) are rotated in accordance with the rotation of the internal gear (48). (53) also rotates. Here, since the first and second control motors (9) and (10) are rotating in the same direction at the same rotational speed, the center gear (49) and the internal gear (48) move in the same direction at the same angular speed. It will rotate. as a result,
The planetary gears (51), (52), (53) continue to rotate at that position, and there is no rotation of the planetary gear mounting plate (54). Therefore, reducer (55)
, The internal mechanism of the encoder (56) connected to the planetary gear mounting plate (54) does not rotate, and it is detected that the output is zero, that is, there is no movement of the cutter blade (4a).

That is, when the first and second control motors (9) and (10) are rotating in the same direction at the same rotational speed, the cutting edge (4a) is in the cutting direction (or in the direction away from the cable (35)). )
Orbit around the cable (35) while maintaining its position. Then, the output of the encoder (56) also becomes zero.

Next, the cutting material (35b) is cut at the cutting edge (4a).
(Or retreat) will be described. In this case, the first and second control motors (9) and (10) are rotating in the same direction at different rotational speeds. 1st control motor (9)
If the peripheral speed of the motor is faster than the peripheral speed of the second control motor (10),
The driven pulley (14) rotates relatively faster than the second driven pulley (15). As a result, the cutter feed transmission gears (17a) and (17b) revolve around the cutter feed gear (6) while rotating in synchronization. The cutter feed drive worm gears (18a) (18b) rotate by the rotation of the cutter feed transmission gears (17a) (17b), and the driven worm gears (31a) (31b) meshed with the drive worm gears (18a) (18b). Rotate.

Since the driven worm gears (31a) (31b) are attached to the cutter base moving screws (30a) (30b), the cutter base moving screws (30a) (30b) are rotated with the rotation of the driven worm gears (31a) (31b). Also rotate. The cutter base moving screw (3
0a) and (30b) are screwed into the arm portions (27a) and (27b) of the cutter base (27), respectively.
When the (30b) rotates, the cutter base moving screws (30a) (30b) gradually screw into the cutter base moving screws (30a) (30b), and the cutter base (27) is drawn toward the cable (35). . Since the coating material cutting section (4) is fixed to the cutter base (27), the moving amount of the cutter base (27) becomes the cutting amount of the cutting edge (4a).

Conversely, when the peripheral speed of the first control motor (9) is lower than the peripheral speed of the second control motor (10), the above operation is reversed, and the coating material cutting section (4) is operated. The fixed cutter base (27) moves in a direction away from the cable (35).

Next, the detection of the cutting depth by the cutter (4a) will be described. As described above, when the peripheral speed of the first control motor (9) is faster than the peripheral speed of the second control motor (10), the first control gear (41) is relatively faster than the second control gear (45). Rotate. As a result, the rotation speed of the internal gear (48) is
The rotation speed becomes higher than the rotation speed of 9), and the planetary gears (50), (51), (52) are rotated in the rotation direction of the internal gear (48).

The planetary gears (50), (51), (52) are rotatably mounted on rotating shafts (50a), (51a), (52a) provided on the planetary gear mounting plate (54). Mounting plate
(54) is a planetary gear (50) (51) (52) centered on the central gear (49)
At the same time, it rotates in the rotation direction of the internal gear (48). This rotation amount is transmitted to the encoder (56) via the speed reducer (55) and output as an angle signal. The angle is proportional to the amount of movement of the cutter base (27) to which the coating material cutting part (4) is attached, and the amount of movement of the cutter base (27) in the cutting direction is calculated by calculating an angle signal. You.

Conversely, when the peripheral speed of the first control motor (9) is lower than the peripheral speed of the second control motor (10), the planetary gear mounting plate (54) rotates in the opposite direction as described above. Is the speed reducer (5
The signal is transmitted to the encoder (56) via 5) and is similarly output as an angle signal, whereby the movement amount of the cutter base (27) in the separation direction is calculated.

Next, the cutting operation of the present invention will be described. As described above, the peripheral speed of the first control motor (9) is made faster than the peripheral speed of the second control motor (10), and the cutting edge (4a) of the coating material cutting section (4) is connected to the cable (35) as described above. Move to the side. The movement amount of the coating material cutting part (4) is detected by the encoder (56), and the position where the cutting edge (4a) contacts the cable (35) (or
The position calculated as the contact point calculated from the output of the encoder (56) is set as the cutting start position (0), and the peripheral speeds of the first and second control motors (9) and (10) are switched so as to be the same. The material cutting section (4) is stopped.

In the case of FIG. 18, the main drive motor (3) is operated while rotating the coating material cutting section (4) to obtain the point (P0).
→ Move to the point (P1), and the coating material cutting portion (4) that bites into the coating material (35b) of the cable (35) cuts the coating material (35b) by a predetermined length. At this time, the support member (32) comes into contact with and supports the cable (35) from three directions, and the bending of the cable (35) due to the cutting resistance of the coating material cutting section (4) is prevented.

The shaved debris (Z) becomes a thin continuous band, passes through the cylindrical coating material cutting portion (4), and is discharged into the annular duct (36) through the discharge tube (38a). But the discharge tube
It is finely cut by a waste cutting blade (34) provided at the outlet of (38a), and is discharged to a flexible duct (40).

The coating material cutting part (4) is located at a point from the cutting start point (P0).
Move toward (P1), and when it reaches point (P1), the covering material (35b)
1st outgoing side cutting work is completed, and the coating material (3
5b) is cut.

When the coating material cutting section (4) reaches the point (P1), the main drive motor (3) is stopped to stop the reciprocating body (F), and then the main drive motor (3) is rotated in reverse. Let point (P1)
Move the coating material cutting section (4) toward the point (P2). Since this range is an obliquely cut region, the rotational speeds of the first and second control motors (9) and (10) are changed and the encoder
While detecting the cutting depth in (56), the coating material cutting section (4) is advanced to deepen the cutting. During this time, the main drive motor (3)
Is reversed, so that it is cut into a taper between point (P1) and point (P2). The taper angle is the first and second control motor
(9) It is determined by the correlation between the difference between the rotation speeds of (10) and the feed speed of the main drive motor (3).

When the coating material cutting section (4) reaches the point (P2), the cutting mode changes to horizontal cutting, and the rotation speeds of the first and second control motors (9) and (10) return to the same rotation speed again. The cutting edge (4a) of the cutting section (4) is fixed.

When the point (P3) is reached, the taper is cut again toward the point (P4), so that the rotation speeds of the first and second control motors (9) and (10) change and the cutting edge (4a) is again It will bite into the covering material (35b).

At the point (P4), the first and second control motors (9)
The rotation speed of (10) returns to a constant speed, and the cutting edge (4a) is fixed. As a result, the coating material cutting section (4) completes the first reciprocating cutting operation and moves to the next second reciprocating cutting operation. The difference between the first reciprocating cutting operation and the second reciprocating cutting operation is that the cutting distance (L) only gradually decreases, and the control of the first and second control motors (9) (10) and the main drive motor (3) is performed. The procedure remains the same.

The above operation is repeated, and the last (L
e1) When the reciprocating cutting operation is completed, a very small sleeve-like covering material (35b) is left around the core wire (35a) or the core wire (35a) is exposed, and the coating material cutting part (4) Is the point (P
n-3).

From this state, the number of revolutions of the second control motor (10) with respect to the first control motor (9) is changed (the rate of change of the number of revolutions is the same as before), and the coating material cutting section (4) gradually becomes a core wire. (35
Operate in the direction away from a). 1st control motor
The rotation speed of the second control motor (10) with respect to (9) is pointed by the correlation between the rate of change and the feed speed of the main drive motor (3).
The taper angle from (Pn-3) to point (Pn-2) is determined.

When the point (Pn-2) is reached, the rotation speed of the second control motor (10) returns to its original value, and the motor rotates at the same speed as the first control motor (9) to perform parallel cutting up to the point (Pn-1). Is performed. Finally, the number of revolutions of the second control motor (10) with respect to the first control motor (9) is changed again, the coating material cutting section (4) is separated from the coating material (35b), and the point (P
The cutting of the coating material (35b) is completed in n).

When the cutting operation is completed, the core fixing mechanism (X) and the cable fixing mechanism (Y) are loosened, and the cable (35) is set free and extracted from the apparatus.

The cutting method of FIG. 19 will be briefly described.
The control method for the first and second control motors (9) and (10) and the main drive motor (3) is the same as in FIG. At the cutting start position (0), the first and second control motors (9) and (10) are rotated at the same speed as described above, and at the same time, the main drive motor (3) is stopped, and the coating material cutting section (4) is connected to the cable (35). Rotate around). Subsequently, the number of revolutions of the second control motor (10) with respect to the first control motor (9) is changed, and the coating material cutting section (4) is moved from the home position (0) to the point (P0) to cut the coating material. The coating material (35b) is cut in the part (4). After cutting to the point (P0),
(9) Make the number of revolutions of (10) the same and operate the main drive motor (3). Thus, horizontal cutting from the point (P0) to the point (P1) is performed.

When the point (P1) is reached, the main drive motor
While operating (3), the number of revolutions of the second control motor (10) with respect to the first control motor (9) is changed (the rate of change of the number of revolutions is the reverse of the past). It is operated in a direction gradually moving away from the core wire (35a). This gives the point (P1)
The point (P2) tapered portion is cut.

When the point (P2) is reached, the main drive motor (3) is stopped, and the second control motor (1) for the first control motor (9) is stopped.
The cutting speed of the coating material cutting portion (4) is changed from the point (P2) to the point (P3) by changing the rotation speed of (0). When the point (P3) is reached, the main drive motor
(3) is reversed to move the coating material cutting portion (4) from the point (P3) to the point (P4), and cut in a tapered shape. After that, the first control motor
The rotation speed of (9) is returned to the same as the rotation speed of the second control motor (10), and horizontal cutting is performed up to the point (P5).

The above operation is repeated to cut the distal end portion of the covering material (35b) of the cable (35) into a tapered shape. In this case, unlike the case described above, the horizontal cutting length (L
1) is almost the same in any cutting step (of course, it may be gradually longer), but the length of the tapered cutting part is (La) → (Lb) →
… → (Ln-2) and it gets longer gradually. Taper
When the cutting of (Ln-2) is completed, the process proceeds to horizontal cutting (Ln-2), and finally, the cutting of the (Ln-2) portion is performed, and the cutting operation is completed. When the cutting operation is completed, the core fixing mechanism (X) and the cable fixing mechanism (Y) are loosened, and the cable (35) is released to be extracted from the apparatus.

In the reciprocating cutting, if the amount of bite movement of the coating material cutting portion (4) is reduced, the surface of the processed portion becomes extremely smooth and conical, and conversely, the bite of the cutting portion moving mechanism (D) If a large amount of movement is taken, a rough step-shaped conical surface is obtained, but the cutting speed is increased.

During the above cutting operation, the cable guide mechanism
(K) holds the cable (3) with the holding member (32) while holding the stopped state.
Since the periphery of (5) is held independently of the rotational movement of the coating material cutting part (4), the force in the direction of bending the cable (35) generated by the bite of the cutting edge (4a) is (32)
The cable (35) is prevented from being bent. As a result, the coating material (35b) is cut into a beautiful conical shape without chipping.

[0090]

According to the present invention, there is a support member for supporting the outer periphery of the cable independently of the coating material cutting portion.
The cable is always held at the center of rotation. And at this time,
Since the moving distance of the cutting edge of the coating material cutting unit attached to the rotating body from the cutting start position (e.g., the tip of the coating material) gradually changes, the range of the cutting of the coating material by the cutting edge of the coating material cutting unit changes. As a result, the processed portion of the coating material is cut into an accurate conical shape. In cutting, the amount of cutting can be freely set, the roughing to the precision finishing can be performed freely, high-speed machining is possible, and the structure can be simplified.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment according to the present invention.

FIG. 2 is a perspective view of FIG. 1;

FIG. 3 is an exploded perspective view of FIG. 1;

FIG. 4 is an enlarged perspective view of the core fixing mechanism of FIG. 1;

FIG. 5 is an enlarged perspective view of a cutter incision detection mechanism and a cutting section rotation mechanism of the reciprocating moving body in FIG. 1;

FIG. 6 is an enlarged perspective view of a cutting unit moving mechanism of the reciprocating moving body of FIG. 1;

FIG. 7 is an enlarged perspective view of a cable guide mechanism of the reciprocating moving body in FIG. 1;

FIG. 8 is an enlarged perspective view of a cable fixing mechanism of the reciprocating body in FIG. 1;

FIG. 9 is an enlarged cross-sectional view of the reciprocating body and the cable fixing mechanism of the reciprocating body of FIG. 1;

FIG. 10 is a left side view of the core fixing mechanism of FIG. 1;

11 is a side view of the core fixing mechanism of FIG. 1 as viewed from inside the apparatus.

FIG. 12 is a side view of the reciprocating cutter of FIG. 1;

FIG. 13 is a side view of the cutting unit moving mechanism of the reciprocating body of FIG. 1;

FIG. 14 is a side view of the cable guide mechanism of FIG. 1;

FIG. 15 is a side view of the cable fixing mechanism of FIG. 1;

FIG. 16 is an exploded perspective view of the cutting waste cutting mechanism and the tubular duct of FIG. 1;

FIG. 17 is an exploded perspective view of the cutter cut-in detection mechanism of the reciprocating moving body in FIG. 1;

FIG. 18 is a front view showing a cutting method according to the present invention.

FIG. 19 is a front view showing another cutting method according to the present invention.

[Explanation of symbols]

 (A) Rotating body (B) Reciprocating mechanism (C) Cutting part rotating mechanism (D) Cutting part moving mechanism (G) Cutting waste cutting mechanism (L) Moving distance of rotating body (X) Core wire holding part (Y) Cable Fixing mechanism (Z) Cutting chips (4) Cutting material cutting part (6) Cutter feed gear (9) First control motor (10) Second control motor (14) First driven pulley (15) Second driven pulley (17a ) (17b) (18a) (18b) (31a) (31b) Gear train (27) Cutter base (30a) (30b) Cutter base moving screw (32) Support member (35) Cable (35a) Core wire (35b) Insulation Lumber

Claims (4)

[Claims] 1. A core wire holding portion for holding the core wire of a cable whose core wire is covered with a coating material, a cable fixing mechanism for holding an outer periphery of the coating material, and a rotating body mounted to rotate around the cable. A reciprocating moving body, a reciprocating mechanism for gradually changing the moving distance of the rotating body to reciprocate the rotating body along the cable, and a coating material cutting unit that rotates together with the rotating body to cut off the coating material of the cable. A cutting section moving mechanism for moving the coating material cutting section toward or away from the core wire; and a cutting section moving mechanism arranged to be able to move in the longitudinal direction of the cable independently of the rotating body while supporting the outer periphery of the cable. A member cutting device comprising a support member for supporting an outer periphery of a cable between a material cutting portion and a cable fixing mechanism. 2. A cutting member moving mechanism, comprising: a rotating body; a rotating body; a cutting part moving mechanism mounted on the rotating body and disposed so as to be able to approach and separate from a cable inserted through the rotating body; The member cutting device according to claim 1, further comprising a cylindrical coating material cutting portion attached to the mechanism. 3. A cutting part rotating mechanism for rotating a rotating body around a cable and a cutting part moving mechanism for moving a coating material cutting part mounted on the rotating body toward and away from the cable. The first installed on the mounted reciprocating mobile,
A second control motor; first and second driven pulleys which rotate independently at the same or different peripheral speeds by the first and second control motors; a cutter feed gear which rotates together with the second driven pulley; And a gear train attached to the first driven pulley, a cutter base moving screw that rotates by rotation of the gear train, and a coating material cutting unit, and the rotation of the cutter base moving screw causes a cable to be attached to the cable. The member cutting device according to claim 1, wherein the member cutting device is configured to include a cutter base that approaches and separates. 4. A tubular duct provided in the member cutting device according to any one of claims 1 to 3, and a cutting chip cutting mechanism installed in the tubular duct are arranged around the coating material cutting section. A tubular duct main body, a rotating ring disposed on the inner periphery of the duct main body, rotating with the coating material cutting portion, and introducing cutting chips into the duct main body; and a discharge connecting the rotary ring and the coating material cutting portion. A member cutting device comprising a tube and a waste cutting blade disposed so as to face an outlet of the discharge tube.