JP2015208847A - Support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support part that is able to support a work piece during machine work.SOLUTION: A housing (6) is arranged in a horizontal position, and a support rod (15) is inserted into the housing (6) so as to move forward/backward in a sideways direction thereof. The support rod (15) is advanced to the right side with predetermined force by advancing means (25). The advancing movement of the support rod (15) is locked by locking means (39). A magnet (8) is provided on the left end part of the housing (6). The housing (6) is configured so as to be attachable to or detachable from the right face (4a) of the left side wall (4) of a work piece (2) via the magnet (8).

Description

  The present invention relates to a support device arranged in a horizontal posture or a vertical posture.

For example, as shown in FIG. 4, a support device arranged in a horizontal posture is conventionally used as follows.
The machining workpiece 2 in which the support device 79 is used includes a main body member 3, and a left side wall 4 and a right side wall 5 projecting upward from the main body member 3. The conventional support device 79 includes a support rod 80 disposed laterally between the left side wall 4 and the right side wall 5. A base portion 81 is provided at the left end portion of the support rod 80, and a nut 82 is screwed into a male screw portion 80 a at the right end of the support rod 80. The length of the support device 79 is adjusted by moving the nut 82 back and forth in the left-right direction with respect to the support rod 80, and the support device 79 is attached between the left side wall 4 and the right side wall 5. When the right side wall 5 is machined from the right side by a processing machine such as a drilling machine, the support device 79 supports the right side wall 5 from the left side.

The above prior art has the following problems.
Since the conventional support device 79 is manually adjusted in length while being supported at a predetermined position by hand, it takes time to install the support device 79. In addition, the support device 79 mounted between the left side wall 4 and the right side wall 5 is likely to drop due to its own weight if the tension force is small, and the tension force tends to be excessive. If the tension force is excessive, the right side wall 5 is greatly bent, so that the processing accuracy by the processing machine is deteriorated. Further, even if the tension force is appropriate, the support device 79 may fall due to an external force such as vibration during machining.
When it is necessary to provide a plurality of the support devices 79 in the vertical direction, the above problem becomes significant.
Further, in the support device 79 arranged in a vertical posture, similarly to the above, there is a problem that the operation of attaching to a predetermined position takes time and the support object is bent due to an excessive tension force.
An object of the present invention is to provide a support device that can be easily attached to a fixed member such as a work and can be supported so that a support object such as a work does not bend during machining.

In order to achieve the above object, according to the present invention, for example, as shown in FIG. 1 and FIG. 2, FIG. 3A and FIG.
The housing 6 is arranged in a horizontal posture or a vertical posture, and a support rod 15 is inserted into the housing 6 so as to be able to advance and retract. The support rod 15 is advanced in the distal direction with a predetermined force by the advance means 25. The forward / backward movement of the support rod 15 is locked by the lock means 39. Adsorption means 8 is provided at the base of the housing 6, and the housing 6 is configured to be detachable from the stationary member 4 via the adsorption means 8.

The present invention has the following effects.
Since the support device of the present invention can be easily attached to an arbitrary position of the fixed side member via the suction means, the attaching operation does not take time. In addition, the support rod is pressed by the advancement means with a predetermined force that lightly contacts the support object, so that the pressing force can be prevented from being excessive and the support object is supported so as not to bend. it can.

As shown in FIGS. 3A and 3B, the present invention preferably has the following configuration.
The housing 6 is divided into a distal end side portion 58 having the support rod 15, the advancing means 25 and the locking means 39, and a proximal end side portion 59. A connecting means 60 for attaching and detaching the distal end side portion 58 and the proximal end side portion 59 is provided.
In this case, a support device having a different length can be provided by combining a distal end portion and a proximal end portion having different lengths. Thereby, the various support apparatus from which full length differs can be provided easily.

FIG. 1 shows a first embodiment of the present invention and is a sectional view in elevation view showing a retracted release state of a support device. FIG. 2 is a view similar to FIG. 1 showing the advance lock state of the support device. 3A and 3B show a second embodiment of the present invention. FIG. 3A is a cross-sectional view showing a separated state of the support device. FIG. 3B is a cross-sectional view showing a connection state of the support device. FIG. 4 is a sectional view as seen from an elevation showing a conventional support device.

  A first embodiment of the present invention will be described with reference to FIGS. First, the usage mode and structure of the support device 1 will be described with reference to FIG.

  The workpiece 2 includes a main body member 3, and a left side wall 4 and a right side wall 5 projecting upward from the main body member 3. The support device 1 is arranged in a horizontal posture between the left side wall 4 and the right side wall 5. The housing 6 of the support device 1 includes an outer housing 6a, an inner housing 6b screwed into a receiving hole 7 opened at the right end of the outer housing 6a, and an end plate provided at the left of the inner housing 6b. 6c. A magnet 8 as an attracting means is provided at the left end (base) of the outer housing 6a. The support device 1 is attracted and supported by the magnet 8 on the right surface (elevation surface) 4 a of the left side wall 4.

  A support rod 15 is inserted into the right portion of the inner housing 6b so as to be able to advance and retract in the left-right direction. The support rod 15 has a large-diameter hole 17, a small-diameter hole 18, and a medium-diameter hole 19 that are formed in order from the left to the right. The tip block 20 is screwed to the right end of the medium diameter hole 19. A step portion 21 is formed between the small diameter hole 18 and the medium diameter hole 19. The advancing means 25 is provided in the inner housing 6b, and the advancing means 25 is configured as follows.

  A cylinder hole 27 is formed in the center of the end plate 6c, and an advancing piston 28 is inserted into the cylinder hole 27 in a tightly-tight manner so as to be movable back and forth in the left-right direction. The piston rod 29 and the locking portion 30 of the advance piston 28 are projected in order to the right. An advancing spring 33 is mounted between the locking portion 30 and the tip block 20. A retraction spring 34 is mounted between the advance piston 28 and the right end wall of the end plate 6c. A pressure chamber 35 is formed on the left side of the advance piston 28, and a supply / exhaust port 36 communicates with the pressure chamber 35. A breathing hole 37 is formed in the outer housing 6a.

The inner housing 6b is provided with a lock means 39 for locking the advance / retreat movement of the support rod 15, and the lock means 39 is configured as follows.
A sleeve member 40 is fitted on the outer peripheral surface of the support rod 15. The sleeve member 40 has a tapered outer peripheral surface 41 having a right concavity and a slit 42 extending to the left and right, and the diameter can be elastically reduced by the slit 42. An annular lock piston 45 is disposed on the outer periphery of the sleeve member 40, and a tapered inner peripheral surface 46 of the lock piston 45 is formed in a right concavity. A large number of balls 47 are inserted between the tapered inner peripheral surface 46 and the tapered outer peripheral surface 41. A return spring 48 is mounted between the end plate 6c and the lock piston 45. A first flow path 51 is formed in the end plate 6 c, and the first flow path 51 communicates with the pressure chamber 35. A second flow path 52 is formed by the gap between the lock piston 45 and the inner housing 6b. The first flow path 51 communicates with the lock working chamber 53 formed on the right side of the lock piston 45 via the second flow path 52.

The above support device operates as follows.
In the reverse release state of FIG. 1, the pressure oil in the pressure chamber 35 is discharged through the supply / discharge port 36, and the lock piston 45 moves to the right by the urging force of the return spring 48 to reduce the diameter of the sleeve member 40. Is released. The advance piston 28 is retracted to the left by a retraction spring 34.

  When using the support device 1 for the workpiece 2, first, the support device 1 in the retracted release state is disposed between the left side wall 4 as a fixed side member and the right side wall 5 as a support object. The support device 1 is attracted and fixed to the right surface 4a of the left side wall 4 by the magnet 8 so as to be in a horizontal posture.

Next, the support device 1 is switched from the backward release state of FIG. 1 to the advance lock state of FIG. That is, when pressure oil is supplied to the pressure chamber 35, the advance piston 28 advances to the right against the urging force of the reverse spring 34. As a result, the urging force of the advance spring 33 advances the support rod 15 to the right, and the tip block 20 slightly contacts the right side wall 5. Thereafter, the pressure oil in the pressure chamber 35 is supplied to the lock working chamber 53 through the first flow path 51 and the second flow path 52, and the lock piston 45 moves to the left against the return spring 48. . Then, the taper inner peripheral surface 46 of the lock piston 45 smoothly engages with the taper outer peripheral surface 41 of the sleeve member 40 while rolling the ball 47, and the sleeve member 40 received by the end plate 6c is moved. Reduce diameter. The sleeve member 40 having the reduced diameter presses the support rod 15 in the centripetal direction and pinches it.
Thereby, when the external force by machining presses the right side wall 5 to the left, the support device 1 supports the right side wall 5 from the left side.

  When the support device 1 is switched from the advance lock state of FIG. 2 to the backward release state of FIG. 1, the pressure oil is discharged from the pressure chamber 35. Then, the pressure oil in the lock working chamber 53 is discharged through the first flow path 51 and the second flow path 52, the return spring 48 moves the lock piston 45 to the right, and the lock piston 45 moves the ball 47. Move smoothly to the right while rolling. As a result, the sleeve member 40 is unlocked and expanded in diameter by its own elastic restoring force. Thereafter, the urging force of the retraction spring 34 causes the advance piston 28 to retreat to the retreat position, and the locking portion 30 causes the support rod 15 to retreat to the left via the step portion 21.

The above embodiment has the following advantages.
The support device 1 of the present invention can be easily attached to an arbitrary position of the left side wall 4 via the magnet 8. Further, since the support rod 15 is advanced to the right by the advance spring 33 of the advance means 25 and lightly contacts the right side wall 5 with a predetermined pressing force, the support rod 15 may bend the right side wall 5. Absent. Furthermore, since the support rod 15 is locked by the lock means 39, it does not shift from the advanced position due to vibration during machining.

3A and 3B show a second embodiment of the present invention. In the second embodiment, the same members (or similar members) as the constituent members of the first embodiment will be described with the same reference numerals in principle.
The second embodiment is different from the first embodiment as follows.
The outer housing 6a is divided into a right side portion (front end side portion) 58 and a left side portion (base end side portion) 59, and a connecting joint (connecting means) 60 for detachably connecting the right side portion 58 and the left side portion 59. Is provided. The connection joint 60 is configured as follows.

A cylindrical plug portion 63 projects leftward from the left end portion of the right portion 58, and a cam member 65 is inserted into an insertion hole 64 formed in the plug portion 63 so as to be movable in the left-right direction. The cam member 65 is urged to the left by the spring 66. A cam surface 67 is formed at the left end of the cam member 65 so as to sag leftward. A ball 69 is inserted into the two housing holes 68 penetrating the peripheral wall of the plug portion 63 so as to be movable in the radial direction, and the ball 69 is fitted to the cam surface 67.
A socket hole 74 is formed to the left from the right end of the left portion 59. A tapered surface 75 is formed at the right end of the socket hole 74, and an engagement groove 76 is formed in the middle of the socket hole 74.

  When switching from the separated state of FIG. 3A to the connected state of FIG. 3B, the plug portion 63 is inserted into the socket hole 74. Then, the tapered surface 75 presses the ball 69 in the centripetal direction, and the ball 69 presses the cam member 65 to the right via the cam surface 67. Thus, first, the cam member 65 moves to the right against the spring 66. Thereafter, the ball 69 is fitted into the engagement groove 76, and the right side portion 58 and the left side portion 59 are connected.

  When switching from the connected state of FIG. 3B to the separated state of FIG. 3A, when the right portion 58 is pulled to the right with respect to the left portion 59, the right groove surface of the engaging groove 76 pushes the ball 69 in the centripetal direction and the cam member. Press 65 to the right. As a result, the engagement between the engagement groove 76 and the ball 69 is released, and the right portion 58 and the left portion 59 are released.

The second embodiment has the following advantages.
The distance between the left side wall 4 and the right side wall 5 is different for each workpiece 2, and it is costly to prepare a large number of support devices 1 having different overall lengths in order to deal with all of the workpieces. Therefore, a plurality of types of the right side portion 58 and the left side portion 59 having different lengths are combined to change the overall length of the support device 1 so that it can cope with various workpieces 2 as described above. In addition, the right portion 58 and the left portion 59 can be quickly attached and detached without a tool, so that workability is improved.

Each of the above embodiments can be modified as follows.
The advancing means 25 may use a cylinder or an electric actuator using compressed air instead of the hydraulic cylinder using the illustrated pressure oil.
The illustrated magnet 8 may be configured to include a cam mechanism for attaching and detaching from the left side wall 4. Specifically, the cam mechanism is in a magnetically attracted state in which the distance between the magnet 8 and the left side wall 4 is reduced. And a disengagement state in which the distance is increased.
Further, the suction means may use a suction cup or a vacuum suction device that evacuates the compartment formed between the left side wall 4 and the outer housing 6a, instead of the illustrated magnet 8.
Instead of the structure of the connecting joint 60 in which the plug part 63 is inserted and connected to the socket hole 74, the connecting means may be configured to be screwed with a screw or to be attracted with a magnet.
The support device 1 may be arranged in a vertical posture instead of being arranged in the illustrated horizontal posture. In this case, the tip of the support rod 15 may be advanced upward or may be advanced downward.
In addition, it is needless to say that various modifications can be made within a range that can be assumed by those skilled in the art.

1: support device, 4: fixed side member (left side wall), 4a: elevation (right side), 6: housing, 8: suction means (magnet), 15: support rod, 25: advance means, 39: lock means, 58: distal end portion (right portion), 59: proximal end portion (left portion), 60: connecting means (connecting joint).

Claims (2)

A housing (6) arranged in a horizontal posture or a vertical posture, a support rod (15) inserted in the housing (6) so as to be able to advance and retreat, and the support rod (15) are advanced with a predetermined force in the distal direction. An advancing means (25), a lock means (39) for locking the advance / retreat movement of the support rod (15), and an adsorbing means (8) provided at the base of the housing (6). The housing (6) is configured to be detachable from the fixed side member (4) via 8).
A support device characterized by that. The support device according to claim 1, wherein
The housing (6) is divided into a distal end side portion (58) having the support rod (15), the advancing means (25) and the locking means (39), and a proximal end side portion (59), A support device comprising a connecting means (60) for attaching and detaching the distal end portion (58) and the proximal end portion (59).

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