JP2510403Y2 - Work transfer device in processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a work transfer device for transferring a work in a processing machine such as a band saw machine or a shaped steel hole punching machine.

(Prior Art) A conventional work transfer device will be described. For example, a transfer vise device is provided on the rear side and front side of a processing machine such as a band saw machine.
Front vise devices are provided so as to be movable in the front-rear direction. Further, the processing machine is provided with a main body vice device for fixing the work during processing. Then, the work is carried from the rear side of the processing machine to the front direction by moving the carrying vise device or the front vise device forward while holding the work.

By the way, in order to position a predetermined part of the work at the processing position, it is first necessary to position the tip (front end) of the work at the reference position. Conventionally, the feeding vise device holding the work is moved forward and the tip of the work is abutted against the closed body vise device, so that the tip of the work moves to the reference position (rear side of the body vise device). I was positioning. Then, the main body vise device is opened and the transport vise device is moved by a predetermined amount to position a predetermined portion of the work at the processing position.

(Problems to be solved by the invention) However, while the work is gripped by the transfer vise device, the main body vise device in the fixed state is brought into contact with the tip of the work by moving the transfer vise forward. As a result, since the tip of the work is positioned, there is a problem that a large impact is caused when the work is abutted, the tip of the work is scratched, and proper tip positioning cannot be performed.

Further, after carrying out the positioning of the tip end, when carrying the work in order to position the predetermined part of the work at the processing position, it is necessary to open the main body vise device in the closed state and then move the carrying vise by the predetermined amount. However, there has been a problem that the work transfer positioning becomes complicated.

(Means for Solving the Problem) In view of the above-mentioned conventional problems, the present invention provides a main body vise device capable of holding and fixing the work at a position close to a processing position for processing the work. A first vise device arranged on one side of the main body vise device is provided movably in a direction of approaching and separating from the main body vise device, and a first drive for moving the first vise device. A second vise device provided with a device and arranged on the other side of the main body vise device so as to be movable in a direction of approaching and separating from the main body vise device, and for moving the second vise device. A second drive device is provided, and the end portion of the workpiece moved by the first vice device is provided so as to be freely contactable with the second vice device,
When the end of the work comes into contact with the second vise device, the work and the second vise device are provided so as to be movable integrally in the same direction, and the moving position of the first vise device is detected. A first position detection device is provided, and a second position detection device that detects the movement position of the second vise device is provided, and the movement amount of the second vise device from the time of abutting the tip portion of the work. Is detected by the second position detecting device, and the workpiece is positioned with a position where the detected value matches a preset value set in the control device as a reference position.

(Operation) In the above configuration, when the first vise device holds the work and moves in the direction of approaching the main body vise device, the tip of the work passes the position of the main body vise device and contacts the second vise device. . When the tip end of the work comes into contact with the second vise device, the work and the second vise device move integrally, and the impact when the tip end of the work comes into contact with the second vise device is mitigated. be able to.

As described above, when the tip portion of the workpiece comes into contact and the second vise device is integrally moved, the second position detection device operates to detect the movement amount of the second vise device. At this time, the second vise device in the stopped state starts to move at the same time as the contact of the tip of the work, and the movement starts when the second position detecting device starts to operate.

The second position detection device detects the amount of movement of the second vise device from the position in the stopped state, and when this detected value matches the preset value set in the control device, this position is taken as the reference position. The workpiece can be positioned, and a predetermined portion of the workpiece can be positioned at the processing position.

(Example) Hereinafter, the Example which concerns on this invention is described based on drawing.

Referring to FIGS. 5 and 6, a rigid band saw machine 1 as an example of a processing machine includes a base frame 3 and a left-right direction relative to the base frame 3 (a left-right direction in FIG. 5, a vertical direction in FIG. 6). The saw blade housing 5 is movable in all directions.

Regarding the details of the saw blade housing 5, a plurality of guide rails 9, 11 extending in the left-right direction are provided on the support frame 7, which constitutes a part of the base frame 3 and stands upright. , 11 are mounted on the saw blade housing 5 at appropriate positions. In order to move the saw blade housing 5 in the left-right direction, a drive motor 17 is provided on the support frame 7.
And a nut member 21 screwed to the ball screw 19 is attached to the saw blade housing 5.

An endless band saw blade is provided in the saw blade housing 5.
A drive wheel 25 and a driven wheel 27 for hanging around and mounting 23 are provided rotatably. The drive wheel 25 is rotationally driven via a drive motor 29.

Further, in order to fix the work W at the time of processing, a main body vice device 33 is provided at a position close to the processing position of the support frame 31 (see FIG. 3) forming a part of the base frame 3. The main body vise device 33 includes a fixed vise 35 and a movable vise 37, and the movable vise 37 is movable via a main body vise cylinder 39 in the left-right direction toward and away from the fixed vise 35.

With the above configuration, after the work W is positioned between the fixed vise 35 and the movable vise 37, the movable vise 37 is brought close to the fixed vise 35 via the main body vise cylinder 39 to fix the work W. Then, driven by the drive motor 29, the driven wheels 25, 27 are rotated to drive the band saw blade 23, and the saw blade housing 5 approaches the work W via the drive motor 17, the ball screw 19 and the like in the left direction. Move to. As a result, the work W can be cut as desired.

A work transfer device 41 is provided to transfer the work W from the rear side to the front side of the main body vice device 33.

For details of the work transfer device 41, referring to FIGS. 3 and 4, the rear side of the main body vice device 33 (see FIG. 3,
A material table 43 for supporting the work W is provided on the left side in FIG. 4, and the material table 43 extends in the front-rear direction. That is, the support frame 31 is provided with a pair of roller support members 45a extending in the front-rear direction via a plurality of columns 47a, and the pair of roller support members 4
A large number of rollers 49a are rotatably provided on the 5a.

The material table 43 is provided with a transfer vise device 51 as a first vise device that grips the work W and performs a material feeding operation so as to be movable in the front-rear direction.

More specifically, the support frame 31 is provided with a pair of guide bars 53a extending in the front-rear direction via a plurality of support brackets, and the guide vise 53a is provided with the transport vice device 5
A vise bed 55a forming a part of 1 is provided so as to be movable in the front-rear direction. In order to move the vice bed 55a, a hydraulic cylinder 61a as a first drive device having a front hydraulic chamber 57a and a rear hydraulic chamber 59a is provided at an appropriate position of the support frame 31 (see FIG. 1). ), A piston rod 63a which is capable of projecting forward from the hydraulic cylinder 61a is attached to the vice bed 55a.

A fixed vise 65a is attached to the upper left side of the vise bed 55a, and a movable vise 67a is moved to the upper right side of the vise bed 55a toward and away from the fixed vise 65a through a gripping cylinder 69a (see FIG. 3). Up and down,
In FIG. 4, it is attached so as to be movable in the front and back directions toward the paper surface.

Referring to FIG. 1, the first vice device is used to detect the position in the front-rear direction of the transfer vice device 51 as the first vice device.
The position detecting device 71a is provided. More specifically, a rack member 73a forming a part of the position detection device 71a is integrally attached to the vise bed 55a.
A pinion 77a that meshes with and has an encoder 75a is attached to the hydraulic cylinder 57a at an appropriate position.

Referring to FIGS. 3 and 4, the main body vice device 33
A product table 79 for supporting the work (product) W is provided on the front side of the
A front vise device 81 as a second vise device for gripping is provided so as to be movable in the front-rear direction. The product table 79 has substantially the same configuration as the material table 43, and the front vise device 81 has substantially the same configuration as the transport vise device 51.
Is omitted, and the corresponding components are designated by the same reference numeral b in the drawings.

Referring to FIG. 1, a hydraulic circuit 83 is provided to appropriately operate the hydraulic cylinders 61a and 61b.

More specifically, the rear hydraulic chamber 59a of the hydraulic cylinder 61a is connected to the A port of the solenoid proportional valve 85 via the circuit 87,
The front oil chamber 57a of the hydraulic cylinder 61a is connected to the B port of the solenoid proportional valve 85 via a circuit 89. The P port of the solenoid proportional valve 85 is connected to the pump P via a circuit 91, and the T port of the solenoid proportional valve 85 is connected to the tank T via a circuit 93. The solenoid proportional valve 85 functions to control the moving speed of the transfer vice device 51.

Also, the rear hydraulic chamber 59b of the hydraulic cylinder 61b is a directional control valve.
The port 95 is connected to the port A via a circuit 97, and the front hydraulic chamber 57b of the hydraulic cylinder 61b is connected to the port B of the directional control valve 95 via a circuit 99. The P port of the directional control valve 95 is connected to the pump P via the circuit 101, and the T port of the directional control valve is connected to the tank T via the circuit 103. When the directional control valve 95 is in the neutral state, the circuit 97, 99
To communicate with each other.

Referring to FIG. 2, a control device 105 is provided to control the movement operation of the transfer vise device 51.

Regarding the details of the control device 105, a storage unit 109 and a comparison unit 111 are connected to a CPU 107 which constitutes a part of the control device 105, and the front vise device 81 is finally located in the storage unit 109. The predetermined positioning position and the like are stored.

In addition, the CPU 107 includes a first detection unit 113 and a second detection unit 115.
Are connected, the first detection unit 113 detects the position of the transfer vice device 51 via the encoder 75a, and
The detection unit 115 is a front vise device via the encoder 75b.
The position of 81 is detected. Further, the CPU 107 is connected with an actuating portion 117 for appropriately actuating the solenoid proportional valve 85.

The operation of this embodiment will be described based on the above configuration.

After supporting the work W on the material table 43, the movable vise 67a is brought closer to the fixed vise 65a via the gripping cylinder 69a to grip the work W. Then, by appropriately controlling the solenoid proportional valve 85 via the CPU 107 and the operating unit 117, the transfer vice device 51 is moved forward at a predetermined speed. As a result, the work W can be transported forward. At this time, the position of the transfer vice device 51 is detected via the encoder 75a and the first detection unit 113, and the position of the transfer vice device 51 is stored in the storage unit 109 as needed.

When the work W is conveyed in the forward direction, the tip of the work W passes through the main body vice device 33 with the vise opened, and the work W is moved to the rear side of the machining position (the position where the band saw blade 23 moves in this embodiment) in advance. The front vise device 81 which is closest to the main body vise device 33 and waits so that the rear surface of the vise is positioned.
Then, the tip (front end) of the work W hits. At this time, the front vise device 81 is in the neutral state, and the directional control valve 95 is in the neutral state so as to connect the circuits 97 and 99. Therefore,
The impact at the time of hitting the tip of the work W can be suppressed as much as possible.

Further, by moving the transfer vise device 51 in the forward direction, the front vise device 81 moves integrally in the forward direction under the state of being in contact with the tip of the work W. At this time, the fact that the front vise device 81 has started to move can be detected by detecting that the encoder 75b has been actuated, and the front vise device after the workpiece abuts.
The movement position of 81 is detected via the encoder 75b and the second detection unit 115, and is stored in the storage unit 109 as needed. When it is detected that the position of the front vise device 81 has changed, the electromagnetic proportional valve 8 is sent via the CPU 107 and the operating unit 117.
5 is controlled as appropriate to slow down the forward movement speed of the transfer vice device 51.

The front vise device 81 is moved forward from the position in which it was stopped, and the amount of movement is detected by the position detection device 71b. Then, when the tip of the work W is located at the processing position, the detection value of the encoder 75b matches the preset value set in the control device. Therefore, the operating unit 117 and the CPU 107 are set so that the transfer vice device 51 is stopped at the time of the match. The solenoid proportional valve 85 is controlled via. Thereby, the tip of the work W can be positioned at the processing position.

Also, when the predetermined position of the work W is moved to the processing position after the tip of the work W is positioned at the processing position, the same operation as described above is performed.

That is, conventionally, as described above, the position when the front end of the work is abutted against the rear side of the main body vise device is the reference position, but the detected value of the position detection device 71b and the set value match. The workpiece can be positioned using the position as a reference value.

As described above, according to the present embodiment, it is possible to suppress the impact when the tip of the work W is abutted against the front vise device 81 as much as possible, the tip of the work W is less likely to be damaged, and proper tip positioning is performed. Is what you can do. Further, when the predetermined position of the work W is positioned at the processing position after the tip of the work W is positioned, the main body vice device 33 is not closed or opened as in the conventional case, so that the positioning of the work W is complicated. There is nothing to do.

The present invention is not limited to the description of the embodiments as described above, but can be implemented in various other modes by making appropriate changes.

As will be understood, since the transfer vise device 51 and the front vise device 81 have the same structure and are relative to each other, the electromagnetic proportional valve 85 and the directional control valve 95 may be used in reverse arrangement. Is also possible.

[Effects of the Invention] As will be understood from the above description of the embodiments, in short, the present invention is a main body that can hold and fix the work (W) at a position close to the processing position for processing the work (W). A vise device (33) is provided, and a first vise device arranged on one side of the main body vise device (33) is provided so as to be movable in a direction of approaching and separating from the main body vise device (33). A first drive device for moving the first vice device is provided, and the main body vice device (33)
A second vise device arranged on the other side of the main body vise device (33) so as to be movable toward and away from the main body vise device (33), and a second drive for moving the second vise device. A device is provided so that the end of the work (W) moved by the first vise device is provided so as to come into contact with the second vise device, and the end of the work (W) is attached to the second vise device. When contacting the workpiece (W) and the second
And a first position detecting device for detecting a moving position of the first vise device, and a moving position of the second vise device. A second position detection device is provided, and the movement amount of the second vise device from the time of contact of the tip of the work (W) is detected by the second position detection device, and the detected value is sent to the control device. The workpiece is positioned using a position that matches a preset setting value as a reference position.

Therefore, according to the present invention, when the first vice device holds the work and moves in the direction of approaching the main body vice device, the first vice device passes the position of the main body vice device in the state where the vice is opened and the tip of the work is Abut on the second vise device.
When the tip part of the work comes into contact with the second vise device, the work and the second vise device move integrally,
The impact at the time of contact of the tip of the work with the second vise device can be mitigated.

As described above, when the tip portion of the workpiece comes into contact and the second vise device is integrally moved, the second position detection device operates to detect the movement amount of the second vise device. At this time, the second vise device in the stopped state starts to move at the same time as the contact of the tip of the work, and the movement starts when the second position detecting device starts to operate.

The second position detection device detects the amount of movement of the second vise device from the position in the stopped state, and when this detected value matches the preset value set in the control device, this position is taken as the reference position. The workpiece can be positioned, and a predetermined portion of the workpiece can be positioned at the processing position.

Further, according to the present invention, it is possible to suppress the impact when the tip of the work is brought into contact with the second vise device as much as possible.
Less scratches on the tip of the work. Furthermore, when the work is transported and the predetermined position of the work is machined and positioned, the main body vice device can be closed or
Since it does not open, positioning is not complicated.

[Brief description of drawings]

The drawings are for explaining the embodiments according to the present invention.
The figure is a view for explaining the main part of the device according to the present embodiment. FIG. 2 is a block diagram of the control device. FIG. 3 is a plan view of the work transfer device. FIG. 4 is a front view of the work transfer device. FIG. 5 is a front view of a vertical band saw machine. Sixth
The figure is a plan view of a vertical band saw machine. 1 …… Vertical band saw machine, 33 …… Main body vise device 51 …… Conveyance vise device, 61a …… Hydraulic cylinder 71a …… Position detection device, 85 …… Electromagnetic proportional valve 61b …… Hydraulic cylinder, 71b …… Position detection Device 95 …… Direction control valve, 105 …… Control device

Claims (1)

(57) [Scope of utility model registration request] 1. A main body vice device (33) for holding and fixing the work (W) at a position close to a processing position for processing the work (W), and the main body vice device (33).
And a first drive for moving the first vise device, the first vise device being provided on one side of the main body vise device (33) so as to be movable toward and away from the main body vise device (33). A second vice device provided with a device and arranged on the other side of the main body vice device (33) is movably provided in a direction of approaching and separating from the main body vice device (33), and the second vice device is provided. A second drive device for moving the vice device is provided, and an end portion of the work (W) moved by the first vice device is provided so as to come into contact with the second vice device, and the second vice device is provided. When the end of the work (W) comes into contact with the device, the work (W) and the second vise device are integrally movable in the same direction, and the moving position of the first vise device is set. In addition to providing a first position detecting device for detecting, A second position detection device for detecting the movement position of the second vise device is provided, and the movement amount of the second vise device from the time of contact of the tip of the work (W) is determined by the second position detection device. A workpiece transfer device in a processing machine, which is configured to detect and position the workpiece with a position where the detected value matches a preset value set in a controller as a reference position.