JPH0724178Y2 - Processing device for electric wire etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to an electric wire or a fluid pressure hose or the like for supplying a plurality of rotary tool shaft units, which is provided on a turret table capable of turning and indexing a machine tool. The present invention relates to a processing device.

2. Description of the Related Art Conventionally, for example, in the case of an inner surface grinding machine having a plurality of internal grinding wheel spindle units on a turret table that can be swivel-indexed in a horizontal plane, an electric wire or a cooling liquid that supplies power to the internal polishing wheel spindle unit is used. The hose to be supplied is generally installed between the fixed side and the turning side (turret) of the main body with both ends fixed.

Problems to be solved by the invention As described in the prior art, the wires and hoses whose both ends are fixed between the fixed side and the swivel side are subjected to a twisting load each time the turret base swivels, so the strength is sacrificed. Therefore, it is necessary to use a soft one that is strong against twisting, and there is a problem that the life is short in terms of both twisting load and material.

The present invention has been made in view of the above problems of the conventional technology, and its purpose is to provide wiring,
It is an object of the present invention to provide an electric wire processing apparatus that does not have twists in piping and the like and can follow the movement of a turret table without resistance.

Means for Solving the Problems In order to achieve the above object, a device for treating electric wires and the like of a turret according to the present invention comprises a take-up tower fixed to a turning center of a turret stand and having a receiving plate on an upper part thereof, and a receiving tower on the receiving plate. The back end has a chain-like chain cover for protecting electric wires and the like, which has a rear end fixed to the machine fixing part and can be bent freely with a predetermined bending radius, and the chain cover opening / closing opening on the side surface. Is supported by slidable supporting members provided at a plurality of locations on the lower surface circumference of the receiving plate, rotation is restricted by a rotation stopper, and a winding cover for covering the upper part of the winding tower is included. It is a thing.

Action When the turret stand rotates and one of the rotary tool axis units is indexed to the cutting position, the winding tower turns together with the turret stand, and the tip of the chain cover with its tip mounted on the backing plate It is drawn into the take-up cover through the opening, and is wound in the take-up cover while maintaining a large eddy winding state regulated by a predetermined minimum bending radius.

Example An example will be described with reference to FIGS. 1 to 4.

In a well-known inner surface grinding machine, a headstock 2 is fixed on the left side of a bed 1, and a chuck 4 is fitted on the tip of a spindle 3 rotatably supported by the headstock 2. Bed 1
The carriage 5 is movably mounted on the Z-axis direction guide provided on the right side of the table, and the middle table 6 is movably mounted on the X-axis direction guide provided on the carriage. Has been done. Further, a turret base 7 is provided on the middle base 6 so as to be pivotally indexable by a pivotal indexing device (not shown), and a plurality of internal grinding wheel axis units 8A to 8D are mounted on the turret base 7.

A winding tower 9 is erected at the center of the turret stand 7, and the winding tower 9 has a leg portion 9a and a receiving plate 9b which also serve as a distribution tower for supplying and discharging the cooling liquid to the grindstone shaft units 8A to 8D. The upper part is formed integrally, and the upper part is an octagonal lower collar part 9c with the receiving plate 9b as the boundary, and the outer cylinder is also an octagonal central cylinder part.
It is divided into 9d. Supporting members 11 for supporting a winding cover 15, which will be described later, are attached to a plurality of circumferential positions on the lower surface of the receiving plate 9b. The supporting members 11 support a roller 12 for supporting the rotation direction and a vertical direction for supporting the winding cover 15 as shown in FIG. It has two supporting rollers 13 and 14, and these rollers 12 to 14 support the inner circumference of the center hole 16a of the bottom plate 16 of the winding cover 15 having an octagonal outer circumference and the upper and lower surfaces in the vicinity thereof. A take-in / out port 15a for a chain cover, which will be described later, is opened on the outer circumference of the take-up cover 15, and the take-up cover 15 is fixed to the side surface of the center stand via the anti-rotation metal fitting 17 with the take-in / out port 15a on the right side. .

The main body of the inner surface grinding machine has a side surface and an upper surface covered with a sealing cover, and a bracket 19 is fixed to the central portion of a hollow rectangular beam 18 provided in the upper longitudinal direction of the sealing cover. Both ends of a chain cover 22 are pivotally attached to a bracket 21 provided on the receiving plate 9b of the winding tower 9. As the chain cover 22, for example, a commercially available cap flex made by Captain Industries Co., Ltd. can be used. This is a synthetic resin chain for protection of electric wires, hoses, tubes, etc. that can be bent freely within a plane with a predetermined bending radius.

Electric wires and hoses for supplying electric power and cooling liquid to the internal grinding wheel shaft units 8A to 8D are inserted through the beam 18 and the chain cover 22. Then, the electric wire 24 that has come out of the chain cover passes through the inside of the L-shaped metal fitting 23 provided on the side surface of the central tubular portion 9d of the take-up tower 9 and is connected to the bottom surface of the collar portion 9c through a plurality of connectors 25 fixed to each inner end. It is connected to a motor with a built-in grindstone shaft. Further, one of the two hoses that came out of the chain cover is a cooling liquid supply hose 26, which passes through the conduit 27 to the lower chamber of the leg 9a, and the other is a cooling liquid discharge hose 28, which is a leg part. 9a is connected to the upper chamber, and the upper chamber and the lower chamber are the internal laboratory axis units 8A-8D.
Each of the cooling liquid intake port and the cooling liquid discharge port is connected by a pipe line.

Next, the operation of this embodiment will be described.

The large-diameter workpiece W1 is gripped by the gripping jaws of the chuck 4, the turret base 7 is rotated, and the internal grinding wheel spindle unit 8A is indexed to the grinding position. The grindstone shaft of the unit 8A is rotated, then the spindle 3 is rotated, and the movement of the carriage 5 in the Z-axis direction causes the internal grinding wheel spindle unit 8A to fast-forward and advance from the retracted end position to the spindle head 2 side. T1 is inserted into the hole of workpiece W1. Then, the traverse feed by the Z-axis movement of the carriage 5 and the cut feed in the X-axis direction of the middle platform 6 perform the internal grinding of the large-diameter workpiece W1. Due to the movement in the X-axis and Z-axis directions during this internal polishing, the chain cover 22 whose tip is attached to the receiving plate 9b of the winding tower 9 moves without resistance as shown by the phantom line in FIG. To follow.

After the internal grinding of the workpiece W1 is completed, the rotation of the main spindle 2 and the grindstone axis is stopped, the next small diameter workpiece W2 is gripped by the chuck 4, and the turret stand 7 is rotated clockwise by 270 ° to make the internal grindstone. The axis unit 8D is indexed. By this turning, the winding tower 9 is also turned, and the tip end of the chain cover 22 is drawn in from the take-in / out port 15a of the take-up cover 15 to form a spiral shape as shown by the solid line in FIG. Next, the grindstone shaft of the unit 8D is rotated, the spindle 3 is rotated, and the internal grinding wheel spindle unit 8D
Moves forward and the grindstone T2 is inserted into the hole of the workpiece W2,
By the traverse feed of the carriage 5 in the Z-axis direction and the cut feed of the intermediate stand 6 in the X-axis direction, the internal working of the small diameter workpiece W2 is performed.

Effect of the Invention Since the present invention is configured as described above, it has the following effects.

A winding tower is provided on a turret stand that can be swivel-indexed with a plurality of rotary tool shaft units, and the tip of the chain cover is mounted on the receiving plate at the upper part of the winding tower, and the fixed winding cover covers the upper part of the winding tower. Since the tip of the chain cover is wound into a vortex winding shape, there is no twisting of the wires inserted in the chain cover when the turret base turns, and resistance to movement of the turret base It can be followed without problems, and there will be no accident such as disconnection or damage. In addition, the appearance of the cable is improved because the cable posture is always maintained.

[Brief description of drawings]

FIG. 1 is a top view of the electric wire processing apparatus of this embodiment, FIG. 2 is a top view of an inner surface grinding machine to which the electric wire processing apparatus of this embodiment is attached, and FIG. 3 is a side view of FIG. 4 is a partially enlarged view of FIG. 3 showing the support member for the winding cover. 7 ... Turret base, 9 ... Winding tower 9b ... Receiving plate, 11 ... Supporting member 15 ... Winding cover 15a ... Chain cover outlet / inlet 16 ... Bottom plate, 17 ... Rotation stop metal 18 ... Liang, 22 …… Chain cover

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-65-267137 (JP, A) JP-A-60-196487 (JP, A) Jitsukoku Sho-62-46508 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A machine tool having a plurality of rotary tool shaft units (8A, 8D) on a turret table (7) capable of turning and indexing. A winding tower (9) having 9b), and a link-shaped electric wire or the like which has a rear end fixed to the receiving plate and a front end fixed to the machine fixing portion (18) and can be freely bent at a predetermined bending radius. Chain cover (22) and a slide plate support member (11) having a bottom plate (16) provided at a plurality of locations on the lower surface circumference of the receiving plate and having a side wall of the chain cover opening / closing opening (15a). And a winding cover (15) which is supported by the winding stopper (17) and whose rotation is restricted by a rotation stopper (17) and which covers the upper part of the winding tower, and is wound by the winding tower. Turret electric wires, etc. Processing equipment.