JP2905238B2 - Work transfer device in cutting machine - Google Patents

Description

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

(Description of the Related Art) In a band sawing machine as an example of a cutting machine, a work transfer device for transferring a work will be described. A roller table for supporting the work is arranged at the rear side of the band sawing machine so as to extend in the front-rear direction. The roller table is provided with a plurality of support rollers extending in the left-right direction at appropriate intervals in the front-rear direction. The roller table is provided with a pair of transfer vise for transferring the work so as to be movable in the front-rear direction, and one of the pair of transfer vise is
It is immovable in the left-right direction, and the other is movable in the left-right direction approaching and moving away.

According to the above configuration, after the work is supported on the roller table, the work is clamped by moving the pair of conveying vise closer to each other. Then, by moving the pair of conveying vise in a forward direction approaching the band sawing machine,
The workpiece can be transported to the processing section of the band saw machine.

(Problems to be Solved by the Invention) However, in the above-described work transfer device in the conventional cutting machine (for example, a band saw machine), in the case of transferring a work whose support side such as a forged material or a bent material is not flat, for example. However, if the downwardly protruding portion of the work is caught between the support rollers, there is a problem that the work cannot be properly transported.

Therefore, an object of the present invention is to provide a work transfer device in a cutting machine that can solve the above problem.

[Constitution of the Invention] (Means for Solving the Problems) In view of the conventional problems as described above, the present invention relates to a work transfer device for transferring a work to a processing unit in a cutting machine for cutting a work. A pair of holding members for holding the work opposing each other are provided on a vice slider movable in the front-rear direction so as to be vertically movable, and a return device for urging the holding members to return to the neutral position in the vertical direction is provided. This is a configuration provided individually corresponding to the holding members.

(Example) Hereinafter, an example according to the present invention will be described with reference to the drawings.

Referring to FIG. 9, a horizontal band sawing machine 1 as an example of a cutting machine includes a box-shaped base 3, and a processing section 5 of the base 3 has a work table 7 for supporting a work W. Are provided, and a pair of fixed bypasses 9a and 9b for fixing the work W to the work table 7 are provided. The fixing bypasses 9a and 9b are immovable in the left-right direction (the left-right direction in FIG. 9).
Is movable left and right. The work table 7 constitutes a part of the base 3.

The base 3 is provided with a saw blade housing 13 that can swing up and down via a hinge shaft 11. In order to swing the saw blade housing 13, a lifting cylinder 15 is provided at an appropriate position on the base 3.
The piston rod 17 which can be projected upward from the housing is connected to an appropriate position of the saw blade housing 13. In addition, as a configuration for vertically moving the saw blade housing 13 with respect to the base 3, a guide post is erected on the base 3 in addition to the above configuration, and the saw blade housing 13 is guided by the guide post. It is no problem to use a configuration in which it is moved up and down.

An endless band saw blade 19 is provided in the saw blade housing 13.
A drive wheel 21 and a driven wheel 23 are provided rotatably, and the drive wheel 21 is linked to a rotating device (not shown). In order to hold the band saw blade 19 substantially perpendicular to the work W supported on the work table 7, the beam member 25 forming a part of the saw blade housing 11 has a pair of saw blade guides 27a, 27b. Is provided,
The saw blade guide 27a is immovable in the left-right direction, and the saw blade guide 27b is movable in the left-right direction.

With the above configuration, the work W is fixed to a predetermined position on the work table 7 by moving the fixed bypass 9b rightward to approach the fixed vise 9a. Then, the rotating device is appropriately operated to drive, the driven wheels 21 and 23 are rotated, the band saw blade 19 is driven to travel, and the lifting cylinder 15 is appropriately operated to swing the saw blade housing 11 downward. Let it. Thereby, the band saw blade 19 guided perpendicularly to the workpiece W through the pair of saw blade guides 27a and 27b,
A desired cutting process is performed.

Referring to FIGS. 7 and 8, the processing portion 5 of the horizontal band sawing machine 1 will be described.
In order to transport the workpiece W, a workpiece transport device 29 is provided on the rear side of the processing unit 5 (the lower side in FIG. 7, the front side in FIG. 8 facing the paper). The above work transfer device 29
Is provided with a roller table 31 for supporting the work W, and a pair of transfer vises 33 and 35 provided on the roller table 31 so as to be movable in the front-rear direction. The transfer vise 33, 35 has clamping members 37, 39 for clamping the work W.

As for the details of the roller table 31, a part of the roller table 31 is formed on the rear side of the base 3, and a table base 41 extending in the front-rear direction is arranged. Support frame through the struts 43
45 are provided. A large number of rotatable support rollers 47 for supporting the workpiece W are provided on the support frame 45 at appropriate intervals in the front-rear direction. The table base 41
A space 49 is formed between the upper surface of the support frame 45 and the lower surface of the support frame 45.

Regarding the details of the pair of transfer vises 33 and 35, a plurality of guide bars 51 extending in the front-rear direction are attached to the support frame 45 via a support member 53, and the plurality of guide bars 51 A vise slider 55 as shown in the figure is provided movably in the front-rear direction. Vise slider 55 above
The support frame 45 is provided with a fluid pressure cylinder 57, and a piston rod 59 that can protrude forward from the fluid pressure cylinder 57 is integrally attached to the vise slider 55. . Since the vise slider 55 moves in the front-rear direction via the space 49, the vise slider 55 and the support frame 45 do not interfere with each other.

A vise base 33a constituting a part of the transfer vise 33 is attached to the right side of the vise slider 55 (the left side in FIGS. 7 and 8), and the left side of the vise slider 55 (FIGS. 7 and 8). The transfer vise 35 is on the right side in the figure)
The vise base 35a, which forms part of the
It is mounted movably in the left and right direction, approaching and separating from the transfer vise 33 via 1.

According to the above configuration, after the work W is supported on the roller table 31 via the plurality of support rollers 47, the transfer vise 35 is moved rightward to approach the transfer vise 33 via the vise cylinder 61. , The work W is clamped. The work W can be transported to the processing section 5 by moving the vise slider 55 forward through the fluid pressure cylinder 57.

For example, when the work W moves up and down during the transfer of a work W whose support side is not flat such as a forged material or a bent material, the holding members 37 and 39 of the transfer vises 33 and 35 move up and down following the movement. It has become.

For details, refer to FIG. 1 and FIG. 2, and FIG. 1 is a rear view of the transfer vise 33, and FIG. 2 is a view taken along the line II-II in FIG. It is. Since the configuration of the transfer vise 35 is the same as that of the transfer vise 33, the configuration of the transfer vise 35 is omitted.

Vise base 33 that constitutes a part of the transfer vise 33
A is provided with a guide portion 63 extending in the vertical direction, and a holding member 37 is provided on the guide portion 63 via a traveling portion 65 so as to be vertically movable. Shafts 67 and 69 are attached to the upper side of the vise base 35a and the holding member 37, and upper and lower ends of both ends of the shafts 67 and 69 (front and back in FIG. 1 and up and down in FIG. 2). Link 71 is fixed pin 73
Is provided via Similarly, shafts 75 and 77 are rotatably provided below the vise base 33a and the holding member 37, and a lower link 79 is attached to the shafts 75 and 77 via fixing pins 81.

With the above configuration, when the projecting portion on the support side of the work W enters between the plurality of support rollers 47 in a state where the work W is sandwiched by the transfer vises 33, 35 via the sandwiching members 37, 39. For example, the upper link 71 and the lower link 79 swing downward, and the holding members 37 and 39 also move downward. Also, when the projecting portion of the work W that has entered between the plurality of support rollers 47 escapes from between the support rollers 47, the upper link 71 and the lower link 79 swing upward,
The holding members 37 and 39 also move upward.

When the holding member 37 is moved up and down, a return device is provided in the transfer vise 33 to return it to the original neutral height position.
83 are provided.

More specifically, referring to FIG.
An opening 85 is provided in a, and a support member 87 is provided in the opening 85. The support member 87 is provided with a through hole 89, and the through hole 89 has an upper elevating body 91 and a lower elevating body 93.
Are provided so as to be movable up and down. A return spring 95 is mounted between the upper lifting body 91 and the lower lifting body 93,
An upper lid 97 and a lower lid 99 are integrally attached to the upper and lower surfaces of the support member 87 so that the upper elevating body 91 and the lower elevating body 93 do not separate from the through holes 89. The upper elevating body 91
Is lower than the upper surface of the lower elevating body 93 by l. In a normal state, the upper surface of the upper lever 101 is integrally attached to the upper elevating body 91 so that the upper surface of the upper lever 101 is in contact with the lower surface of the abutting portion 103 of the holding member 37, and is integrated with the lower elevating body 93. The lower surface of the lower lever 105 attached to the upper surface contacts the upper surface of the contact portion 107 of the holding member 37.

With the above configuration, when the work W moves upward from the normal height position during the transfer of the work W, the holding member
37, the contact portion 107 follows and moves upward, and the lower lever 105 and the lower elevating body 99 that are in contact with the contact portion 107 also rise. At this time, the contact state between the upper lever 101 and the contact portion 103 is released, and the return spring 95 is contracted from below. When the work W is located at the normal height position, the lower lever 105 and the holding member 37 move downward to the normal height position by the urging force of the return spring 95. The lower elevating body 93 can be raised by the maximum height l.

Similarly, when the workpiece W moves downward,
The holding member 37 and the contact portion 103 move downward following the contact portion 103, and the upper lever 101 and the upper elevating body 91 in contact with the contact portion 103.
Also move downward. At this time, the contact state between the lower lever 105 and the contact portion 107 is released, and the return spring 95 is contracted from above. When the work W is located at the normal height position, the upper lever 101 and the holding member 37 move upward to the normal height position by the urging force of the return spring 95.

Instead of the return device 83, a return device as shown in FIG.
109 may be provided. While the return device 83 has a return spring 95 mounted between the elevating body 91 and the lower elevating body 93, the returning device 109 includes the elevating body 91
The return spring 111 is individually mounted between the support member 87 and the lower elevating body 93 and the support member 87. The rest of the configuration of the return device 109 is substantially the same as the configuration of the return device 83.

Instead of the return devices 83 and 109, a return device 111 as shown in FIG. 5 may be provided.

Regarding the details of the return device 111, an upper support member 113 and a lower support member 115 are provided in the upper and lower portions of the opening 85, and the upper support member 113 and the lower support member 115 have an upper elevating body 91 and a lower elevating member. A body 93 is provided to be vertically movable. A return spring 111 is elastically mounted between the upper elevating body 91 and the upper supporting member 113 and between the lower elevating body 93 and the lower supporting member 105, respectively.
119 is the upper elevating body 91 and the lower elevating body 9 in a normal state.
Contact 3

In addition to moving the holding member 37 up and down by using the upper and lower links 71, 79, etc., the holding member 37 has a structure shown in FIG.
37 can be moved up and down.

See Figure 6 for details.
A plurality of slide bearings (made of, for example, OILES metal, Turkeite A, etc.) are disposed between 33a and the holding member 37, and a needle bearing may be provided in place of the above-mentioned slide bearing 121. It is. Here, by disposing the slide bearing 121 between the concave portion 123 of the vise base 33a and the convex portion 125 of the holding member 37, the holding member 37 can move up and down with high accuracy. Also, clamping members
A bolt 127 attached to 37 is mounted on a hole 129 of the vise base 33a so as to be able to swing vertically, and a spring 131 is elastically mounted between the hole 129 and the bolt 127. It does not leave the base 33a. Note that, in this case as well, the return device 83 is provided on the vise base 33a.

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

The work W is supported on the roller table 31 having a large number of support rollers 47. Next, by moving the transfer vise 35 rightward to approach the transfer vise 33 via the vise cylinder 61, the work W is held and fixed via the holding members 37 and 39. Then, while the work W is being clamped, the work W is moved by moving the pair of transfer vises 33, 55 in the forward direction approaching the processing section 5 via the fluid pressure cylinder 57 and the vise slider 55. It can be transported to the processing section 5 of the horizontal band saw blade 1.

Under the above operation, for example, when conveying a workpiece W whose support side is not flat, such as a forged material or a bent material,
The work W moves up and down when the protrusion on the support side of the work W enters between the plurality of support rollers 47, or when the protrusion of the work W enters between the plurality of support rollers 47 and escapes. Will be. On the other hand, a pair of transfer vise 33,3
Since the holding members 37 and 39 in 5 are provided on the vise bases 33a and 35a so as to be vertically movable, when the work W moves up and down, the holding members 37 and 39 follow and move up and down.

According to the present embodiment, the holding members 37 and 39 of the pair of transfer vises 33 and 35 are provided so as to be vertically movable.
For example, in the case of transporting an uneven work W from a support side such as a forged material or a bent material, each of the holding members 37 and 39 also moves up and down as the work W moves up and down. Therefore, the work W whose support side is not flat can be appropriately conveyed to the processing section 5 of the horizontal band sawing machine 1.

The present invention is not limited to the description of the above-described embodiment, and various other embodiments can be implemented by making appropriate changes.

[Effects of the Invention] As can be understood from the above description of the embodiment, in the present invention, a pair of holding members 37 and 39 for holding the work W opposing each other are movable vise sliders 55 that can move in the front-rear direction.
Since a return device is provided for each of the holding members 37 and 39 so as to be movable up and down, and a biasing device for urging the holding members 37 and 39 to return to the neutral position in the vertical direction is provided individually for each of the holding members 37 and 39. In the case where the work moves up and down due to, for example, the curvature of the work and the vertical irregularities during the transfer operation of the W, the pair of holding members 37 and 39 correspond to the up and down movement of the work W while the work W is held. The work W can be moved up and down and the work W can be easily transported.

Since a return device for urging the respective holding members 37 and 39 to return to the upper and lower neutral positions is separately provided corresponding to each holding member, when holding the work W, each holding member 37 is required. , 39 are always located at the neutral position in the vertical direction, and can be easily moved upward and downward.

[Brief description of the drawings]

The drawings illustrate an embodiment according to the present invention.
The figure is a rear view of the transfer vise. FIG. 2 is a view taken along the line II-II in FIG. FIG. 3, FIG. 4, FIG.
The figure is a sectional view of a transfer vise provided with a return device. FIG. 6 is a plan view of a transfer vise having a structure in which a holding member is moved up and down using a slide bearing or the like. FIG. 7 is a plan view of the work transfer device. FIG. 8 shows VIII-VI in FIG.
FIG. 2 is a view taken along line II. FIG. 9 is a front view of the horizontal band sawing machine. DESCRIPTION OF SYMBOLS 1 ... Horizontal band sawing machine, 5 ... Processing part 31 ... Roller table, 47 ... Support roller 33, 35 ... Conveying vise 37, 39 ... Holding member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B23D 55/04 B23D 51/04 B23D 47/04 B23Q 7/05

Claims (1)

(57) [Claims] In a work transfer device for transferring a work (W) to a processing section (5) of a cutting machine for cutting a work, a pair of holding members (37) for holding the work (W) opposed to each other. , 39) are provided on a vice slider (55) movable in the front-rear direction so as to be vertically movable, and each holding device for urging the holding members (37, 39) to return to the neutral position in the vertical direction is held by each holding device. A work transfer device in a cutting machine, which is provided individually corresponding to the members (37, 39).