JPH078082Y2 - End bar aligning device for long bar with core height adjustment function - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] In the present invention, when the end face of a long bar is processed by a dedicated processing machine, the end face alignment and core height adjustment of the long bar are simultaneously performed. The present invention relates to an end face aligning device for a long bar having a core height adjusting function.

[Conventional technology]

Conventionally, in the case of processing the end face of a long bar, an end face aligning device for moving the long bar in the length direction to align the end faces, a core of the long bar and a core of a processing machine. Since it is a device separate from the core height adjusting device for matching, there is a problem that the structure of the device becomes complicated and the cost increases.

[Problems to be solved by the device]

The present invention reduces the cost of the device by adding the function of adjusting the core height to the device for aligning the end faces of the long rod and performing the end face alignment and the core height adjustment of the long rod by one device. At the same time, the task was to reduce the work preparation time for processing the end face of a long bar.

[Means for Solving the Problems]

The present invention arranges a large number of stands at predetermined intervals along the direction of the processing core of a processing machine, and uses a lever that rotates about a horizontal rotation axis orthogonal to the processing core of the processing machine. The bar is rotatably supported on each of the stands, a bar supporting plate for supporting a long bar is attached to the upper end of each lever, the lower ends of the levers are connected by a common link, and one end of the link is connected. Is an end face aligning device for a long rod having a core height adjusting function, which is connected to a rod of a lever driving cylinder.

Also, by making it possible to adjust the fixed position of the lever drive cylinder relative to the base along the machining core direction of the machining machine, core height adjustment and end face alignment can be performed in response to changes in the diameter of the long bar. Can be done at the same time.

[Function of device]

When each lever supported on the stand is tilted by the set angle by the operation of the lever drive cylinder, the long bar horizontally supported by the bar support plate at the upper end of the lever moves horizontally. Move toward the processing machine while maintaining it.

A stopper for aligning the end faces of the long bar is located in front of the processing machine at the set position, and the tip surface of the long bar moved toward the processing machine by tilting the lever. Comes into contact with the stopper, so that the tip surfaces are aligned.

Even after the tip end surface of the long bar material contacts the stopper, the lever tilts, and a slip occurs between the long bar material and the bar support plate supporting the long bar material.

By the tilting of the lever, the long bar is moved toward the processing machine side, and at the same time, the long bar is lowered by an amount corresponding to the tilt start position and the tilt angle of the lever.

As a result, the tip end surfaces of the long rods supported by the rod support plate are aligned, and at the same time, the core height of the long rods is adjusted.

〔Example〕

As shown in FIGS. 1 and 2, a large number of box-shaped stands 1 each having a hollow interior are arranged at predetermined intervals along the direction of the processing core C ₁ of the processing machine M. There is.

As shown in FIGS. 3 and 4, a rotary shaft 3 is supported on the upper surface of each stand 1 by a pair of bearings 2 at a right angle to the machining core C ₁ of the machining machine M and horizontally. Lever 4
The portion closer to the lower end than the center of the is supported by the rotating shaft 3, whereby the lever 4 is rotated in a vertical plane including the processing core C ₁ of the processing machine M.

On the upper end of the lever 4, a bar material support plate 5 for supporting the long bar material B is attached in parallel with the rotating shaft 3. The bar supporting plate 5 of the embodiment has a structure capable of supporting three long bar B at the same time, and a V-shaped groove 6 is provided in the supporting portion.

The portion below the pivot of the lever 4 (the axis of the pivot 3) is inside the stand 1, and
The lower ends of the levers 4 supported by the levers are pivotally attached to a common link 8 via a connecting pin 7, whereby the levers 4 are connected to each other by the link 8.

The tip of rod 10 of lever driving cylinder 9 is knuckle
It is connected to the end of the link 8 via 11. The base end of the lever driving cylinder 9 is attached via a pin 12
The mounting base 13 is pivotally attached to the base 13, and is fixed to the base 14 so that the fixing position in the front-rear direction (the direction along the processing core C ₁ of the processing machine M) with respect to the base 14 can be adjusted. There are many known means for adjusting the fixing position of the mounting base 13 with respect to the base 14, and one example is one in which the mounting base 13 is provided with a long hole along the front-rear direction.

In FIG. 3, each lever 4 is vertical when the rod 10 of the lever-driving cylinder 9 is projecting, and when the rod 10 is retracted in this state, each lever 4 is drawn as indicated by a chain double-dashed line. 4 is tilted to the processing machine M side.

The tilt angle (θ) of the lever 4 is approximately proportional to the stroke of the rod 10 of the lever driving cylinder 9, and the tilt angle (θ) of the lever 4 is determined as described later to determine the core height of the long bar B. Making adjustments.

A chuck 16 equipped with a tool (not shown) is attached to the tip of a spindle 15 of the processing machine M, and the chuck 16 advances and retreats along a processing core C ₁ .

An upper clamp tool 17 and a lower clamp tool 18 are vertically provided in front of the chuck 16 of the processing machine M. As shown in FIG. 7, the upper clamp tool 17 and the lower clamp tool 18 are provided with V-shaped gripping surfaces 17a and 18a, respectively, and grip the end portion of the long bar B during the end face machining. To process.

When the long bar B is placed on the bar support plate 5 at the upper end of the lever 4, it is necessary to avoid interference between the long bar B and the upper clamp tool 17, and therefore the upper clamp tool 17 is installed in the cylinder 19 It is designed to move up and down by the action of. When the diameter of the long bar B on which the end face processing is performed changes, the vertical position of the lower clamp 18 is finely moved correspondingly.

A stopper 21 is arranged between the chuck 16 of the processing machine M and the upper and lower clamp tools 17, 18. This stopper 21
Is for aligning the end faces of the long bar B by abutting the end faces thereof, and is moved up and down by the action of the cylinder 22.

As shown by the chain double-dashed line in FIGS. 2 and 4, between the levers 4 adjacent to each other, the long bar B, which has been preprocessed, is attached to the upper end of the lever 4. A transfer support plate 23 for transferring to the support plate 5 is arranged. The transfer support plate 23 transfers the long bar B to the bar support plate 5 by a combination of a vertical movement and a horizontal linear motion. The specific mechanism is directly related to the present invention. It is not related and will not be described in detail.

3 to 6, the long bar B is transferred from the transfer supporting plate 23 to each bar supporting plate 5 of the lever 4 which is vertically positioned, and then the lever driving cylinder 9 is moved. The rod
When 10 is retracted by a constant stroke, the levers 4 are tilted toward the processing machine M side by a set angle (θ) and stopped in synchronization with each other. As a result, the end surface of the long bar B is stopped by the stopper 21.
And the tips are aligned with each other, and the axis of the long bar B is
C ₂ is lowered by an amount (h) corresponding to the set angle (θ), and the core height is adjusted at the same time. As a matter of course, in this operation, the length of the long bar B is smaller than the moving distance (S ₂ ) in the horizontal direction, and slippage occurs between the long bar B and the bar support plate 5 by the difference.

Next, the case where the diameter of the long bar changes will be described. When the diameter of the long bar B'becomes larger than the diameter of the long bar B, the descending amount of the long bar B'is set to the descending amount (h).
Must be greater than.

Mounting base 13 for lever driving cylinder 9 with respect to base 14
By slightly advancing or retracting the lever to change the fixed position, as shown in FIG. 8, each lever 4 is tilted toward the processing machine M by (θ ₀ ) and the tilting start position of the lever 4 is changed. change.

In this state, when the rod 10 of the lever driving cylinder 9 is retracted by a certain stroke, each lever 4 tilts by (θ ′) which is substantially equal to the set angle (θ). As a result, the long bar B'is lowered by an amount (h ') larger than the lowering amount (h), and the end height is aligned and the core height is adjusted. In FIG. 8, C ₂ ′ is a long bar B ′.
Shows the axis of.

In this way, it is possible to deal with the change in the diameter of the long bar material for which the end face processing is performed.

After the end face alignment of the long bar material is completed, the cylinder 19 lowers the upper clamp tool 17, the upper and lower clamp tools 17 and 18 grip the tip portion of the long bar material B, and the cylinder 22 moves the stopper 21. Elevate and perform end face processing.

[Effect of device]

The end surface aligning device according to the present invention has a large number of stands arranged at predetermined intervals along the direction of the processing core of the processing machine, and has a horizontal rotation axis perpendicular to the processing core of the processing machine as a center. A rotating lever is rotatably supported on each of the stands, a bar support plate for supporting a long bar is attached to the upper end of each lever, and the lower ends of the levers are connected by a common link. Since one end of the link is connected to the rod of the lever driving cylinder, the rod supporting plate at the upper end of the lever is tilted by the operation of the lever driving cylinder to tilt each lever toward the processing machine side by a set angle. By moving the long bar material supported by (1) toward the processing machine side and bringing its tip end surface into contact with the stopper, the end surfaces of the long bar material can be aligned and the core height can be adjusted.

Therefore, it becomes possible to perform end face alignment and core height adjustment work, which were conventionally performed by two different types of devices, with one device, which can reduce the cost of the device and end face of the long bar. The work preparation time for machining can be shortened.

In addition, for changing the diameter of the long bar for end face machining,
This can be easily dealt with by adjusting the fixing position along the front-back direction of the lever driving cylinder for tilting each lever via the link.

[Brief description of drawings]

1 is a plan view of an end face aligning device for a long bar according to the present invention, FIG. 2 is a side view of the same, FIG. 3 is an enlarged side view of the same, FIG. 4 is a front view of the same, FIG. 5 is an enlarged front view of the bar support plate 5, FIG. 6 is a side view of a portion of the stopper 21 when the lever 4 is in the vertical state and tilting starts, and FIG. 8 is an enlarged cross-sectional view of a state in which the long bar B is gripped by the and 18, FIG. 8 shows a portion of the stopper 21 when the lever 4 slightly tilts toward the processing machine M and tilting starts. It is a side view. The reference numerals of the main parts constituting the present invention are as follows. B, B ': Long bar material, C ₁ : Machining center of processing machine, C ₂ , C ₂ ': Shaft axis of long bar material, M: Processing machine, θ, θ ': Lever tilt angle, 1 :
Stand, 3: Lever rotation axis, 4: Lever, 5: Bar support plate, 8: Link, 9: Lever drive cylinder, 10: Rod, 1
4: Base, 21: Stopper

Claims (2)

[Scope of utility model registration request] 1. A lever having a large number of stands arranged at a predetermined interval along a direction of a processing core of a processing machine and rotating about a horizontal rotation axis orthogonal to the processing core of the processing machine. Is rotatably supported on each of the stands, a bar support plate for supporting a long bar is attached to the upper end of each lever, and the lower end of each lever is connected by a common link, One end is connected to the rod of the lever driving cylinder, and each lever is tilted toward the processing machine side by the operation of the lever driving cylinder, so that the long rod supported by the rod support plate at the upper end of the lever. The core height is characterized in that it is possible to adjust the core height at the same time as aligning the end surfaces of the long bar material by moving the material toward the processing machine side and abutting the tip end surface thereof against the stopper. End face alignment of long bar with adjustment function Apparatus. 2. A long length having a core height adjusting function according to claim 1, wherein a fixing position of the lever driving cylinder with respect to the base along a direction of a processing core of a processing machine can be adjusted. An end face aligning device for bars.