JPH11170137A - Jig attaching device and positioning jig for workpiece vise - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jig attaching device for a workpiece jig, which cam simply attach and remove a workpiece positioning jig or the like to and from the workpiece vise, and which can reproduce the position of the attached jig with a high degree of accuracy. SOLUTION: The front end of an L-like body bracket 52 is pivotally connected to a presser bracket 53 at a position in the vicinity of a corner part of the latter, by means of a pin 54 so as to define a U-like shape between the L-like body bracket 52 and the presser bracket 53 and the L-like body bracket 52 and the presser bracket 53 are opened so as to widen the width of the U-like shape by means of a spring and are closed so as to narrow the width thereof by a fastening force of a screw device with a knob 56. A positioning plate and a positioning block are attached to the body bracket 52 while the screw device is unfastened so as to they are fitted in a workpiece vise, and then the knob 56 is turned so as to narrow the width of the U-like shape in order to fix them to the workpiece vise. When a workpiece is machined, the knob 56 is loosened so as to remove them. Two jig attaching devices are used, one of them being fixed to one end of a round rod 61, and the other one of them being slidable along the round rod 61, so as to obtain a jig for pressing side surfaces of a plurality of workpieces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work vise used for fixing a work (workpiece) to a table of a machine tool, and a jig for positioning a side of the work is mounted on the work vise. The present invention relates to a jig mounting device used for the above.

[0002]

2. Description of the Related Art A work vise is widely used for fixing a work machined by a drilling machine or a milling machine to a table of a machine tool. When a work is large or has a complicated shape, it is a general rule to fix the work with one or more vice, one at a time, but the work is small and slender and simple. When the number of processes is large, a plurality of workpieces are often collectively fixed and fixed by a vice. FIG. 7 is a plan view schematically showing a state in which a plurality of elongated works are fixed together with two vise. In this example, two work vises 23, 23 are arranged in parallel, and their fixed claws 3, 3 and movable claws 4,
A plurality of workpieces are collectively fixed between them. When the work 5 is sandwiched by the work vise, the work is pressed against the fixed claw 3 by the movable claw 4, so that the position of the work in the direction sandwiched by the vise 23 is defined by the fixed claw 3. However, since the position of the work in the direction perpendicular to the holding direction cannot be defined, when processing the end faces of the work that is held and held together as shown in the figure, the positions of the end faces of a plurality of works may come and go. Processing becomes difficult. Therefore, as shown in the drawing, a patch 22 for defining the position of the end face of the work is attached to the table, and one end of the work is brought into contact with this plate, whereby the work in the direction perpendicular to the direction of clamping by the vise can be moved. The position is specified.

[0003] However, when such a backing plate 22 is provided, it is not possible to machine the end face of the work in contact with the backing plate. Therefore, after machining one end of the work, it is troublesome that the direction of the work must be reversed and fixed again to process the other end face. In this case, if the backing plate 22 is removed, the end surface on the side in contact with the backing plate 22 can also be processed. However, when the next work is processed, the backing plate 22 must be attached again. On the contrary, it is complicated, and the mounting position of the backing plate 22 is not constant, which causes a problem that the dimension of the processed work varies.

[0004]

In the case described above,
If the jig that defines the position of the end face of the work can be easily attached to and detached from the work vise, and the position of the jig when it is installed is kept constant, processing the work with simpler work This can be done in a short time.

According to the present invention, a jig used for positioning a work at the time of processing a work can be easily mounted on and removed from a work vise, and the position of the mounted jig can be reproduced with high accuracy. It is an object to obtain a jig mounting device that can be used.

[0006]

A jig mounting apparatus for a work vise according to the present invention includes an L-shaped main body bracket 52 and an L-shaped presser bracket 53 as well.
2 is formed in such a manner that about a half of its length on the leading end side is narrow in plan view, and the holding bracket 53 is in a state where the narrow portion 52a is inserted into a long hole 53a provided near an L-shaped corner. The slot portion is pivotally attached to the main body bracket 52 by a pin 54. The two L shapes of the main body bracket and the holding bracket are pivotally connected by the pin 54 so as to form a U-shape, and the main body bracket 52 and the holding bracket 53 are formed.
And a screw device 57 having a knob 56 for applying a biasing force in the direction to open the U-shape and a knob 56 to apply a fastening force in the direction to close the U-shape, The main body bracket 52 has a tap hole 6 for attaching a jig.
9 is provided.

The tap holes 69 of the main body bracket are used to define the position of the end face of the work held by the vise via the spacer 59 if necessary, that is, the position in the direction orthogonal to the direction held by the vise. Positioning plate 6
3b, and positioning blocks 63a and 63c in which a plurality of positioning rods 65 are erected and retractable can be mounted. Positioning plate 63b and positioning block 63a
Is attached to the work vise 23 with the screw device 57 loosened, and the knob 56 is turned to narrow the U-shape with the screw device 57 so that the work vise is formed by the main body bracket 52 and the holding bracket 53. Is fixed to the work vise. When working the work, if the screw device 57 is loosened with the knob 56, the U-shaped opening is released by the urging force of the spring 55 and the fixing to the work vise is released. Since the positioning plate and the positioning block attached to the tool can be removed, interference with the blade during machining can be avoided by a simple operation.

A positioning jig according to a second aspect (first embodiment) uses two jig mounting devices 51 of the present invention, one of which is fixed to one end of a round bar 61 and the other is a round bar 61. Are slidably mounted along. Between the round bar 61 and the jig mounting device 51, a support 60 for supporting the round bar 61 is provided.
And a spacer 59 having an appropriate size are interposed. Round bar 61
The set screw 62 is attached to the receiving base 60 fixed to the
The set screw 62 fixes the axial relative movement between the round bar 61 and the receiving base 60.

According to the positioning jig of the present invention, one jig mounting device is mounted on the fixed block 17 holding the fixed claw 3 of the work vise, and the other jig mounting device 51 is held by the movable claw 4. Is mounted on the moving platform 7. In this state, the round bar 61 is parallel to the moving direction of the movable claw 4, and one of the jig mounting devices 51 is axially movable with respect to the round bar 61. 4 can advance and retreat. Then, with the movable claw 4 opened, a plurality of workpieces are brought into contact with the round bar 61 at their end surfaces, loaded between the fixed claw 3 and the movable claw 4, and the movable claw 4 is advanced to move the plurality of workpieces. The work is clamped at once. Thereafter, the screw device 57 of the jig mounting device on both sides is loosened, and the jig 51 is removed.

The set screw 62 of the receiving table 60
Can be provided on both the pedestals together.In this case, the jig is fixed by using a set screw between the pedestal and the round bar, which can be freely moved in the axial direction when the jig is loaded and unloaded. Workability at the time of removal can be improved.

[0011]

FIG. 8 is a perspective view showing an example of a work vise particularly suitable for using the jig mounting apparatus and the positioning jig of the present invention. The work vise has an elongated rectangular base 2, and a guide groove 15 is provided on both side surfaces in a longitudinal direction, and a portion above the guide groove is provided with a slide guide 6 for guiding the movable tables 7 and 19. Has become. A fixed block 17 is fixed to one end of the base 2 by positioning with a key 16, and a fixed claw 3 is fixed to this fixed block.

A plurality of guide holes 18 are arranged on the base 2 at regular intervals with the center of the guide groove 15 substantially coincident with the lower side. Each guide hole 18 reaches the inner surface of the guide groove 15, so that the portion located in the guide groove has a semicircular cross section, and the inner end has a circular cross section.

Although not shown in FIG.
Is provided with a skirt 19a extending to both sides so as to cover the guide groove 15, and a ridge fitted into the guide groove 15 is formed inside the skirt. A knock hole penetrating the skirt 19a is provided in a lower side portion of the ridge, so that the knock hole has a circular cross section at the entrance and a semicircular cross section at the upper half on the back side. In other words, when the upper half of the knocking hole of the first moving table 19 and the lower half of the knocking hole provided in the base match each other, the knocking hole of the circular cross section is formed. Becomes The first movable base 19 is fixed at a predetermined position on the base 2 by inserting a knock pin 20 into the knock hole with its knock hole aligned with one of the knock holes of the base.

A screw rod is mounted on the first movable base 19 so as to be unable to move in the axial direction in parallel with the guide groove 15, and a threaded portion of the screw rod is screwed with a female screw formed on the second movable base 7. I have. The movable claw 4 is fixed to the second movable table 7. The head of the screw rod is exposed on the back surface of the first moving table. By rotating the head 8a or the handle 8, the second moving table 7 is moved forward and backward to move the work between the fixed pawl 3 and the second moving table 7. Hold and release.

FIG. 1 is a perspective view showing a first embodiment of a positioning jig of the present invention mounted on a work vise. FIGS. 2 and 3 are front views showing main parts of the positioning jig, ie, parts of a jig mounting apparatus. It is a top view. The jig mounting device 51 includes an L-shaped main body bracket 52 and an L-shaped pressing bracket 53.
One end of the main body bracket 52 is formed to have a width that is approximately half the length of the main body bracket 52 in plan view.
3 is an elongated hole 53a provided near the corner of the L-shape.
With the 2a inserted, the intermediate portion is pivotally attached to the main body bracket 52 by the pin 54. In the illustrated embodiment, three pin holes are provided in the main body bracket 52. The three pin holes are formed in accordance with the size of the vise.
This is to enable the pivotal position between the main body 3 and the main body bracket 54 to be changed. The main body bracket 52 and the holding bracket 53 are pivotally connected to each other by a pin 54 to form a U-shape which is inserted into the fixed block 17 of the work vise and the movable base 7 from above. The leg portion 52b of the main body bracket and the leg portion 53b of the holding bracket, which form opposite sides of the U-shape, have a shape in which the main body bracket side is in close contact with the side surface of the work vice, and the holding bracket side has the leg portion 52.
small protrusion 53 facing the leg 52b side facing the tip of the b
c is formed. A compression spring 55 is provided between the main body bracket 52 and the presser bracket 53 to apply a biasing force in a direction to rotate the presser bracket 53 rightward around the pin 54 in FIG. A pin 5 instead of this compression spring
A winding spring wound around 4 can also be used. A screw hole facing the main body bracket is provided at an end of the presser bracket 53 extending above the main body bracket, and a screw 57 having a knob 56 attached to the upper end thereof is screwed into the screw hole.

On the outer surface of the leg portion 52b of the main body bracket, tapped holes are provided at three locations, that is, up, down, and the center. In the example of the figure, the tip is screwed into the upper and lower tap holes.
The receiving stand 60 is fixed via spacers 59 by the mounting bolts 58, 58. The receiving table 60 is provided with a round hole 60a for inserting the round bar 61 in parallel with the moving direction of the movable claw 4 of the work vise, and a set screw 62 for fixing the round bar toward the round hole. Is provided.

One of the assembling tables of the jig mounting apparatus 51, the spacer 59 and the receiving table 60 shown in FIGS. 2 and 3 described above is fixed to one end of a round bar 61 of a predetermined length by a set screw 62. 1 is formed by loosening the set screw 62 so as to be movable in the axial direction of the round bar 61, thereby forming the positioning jig 63 shown in FIG. As described in FIG. 1 and the above-mentioned means, the positioning jig 63 configured as described above can be used to hold a large number of elongated workpieces together in a work vise and perform processing in the longitudinal direction of the workpieces. It is particularly effective in determining the position of the end face.

The jig mounting device 51 of the present invention can be used for mounting the positioning jig of the present invention described above and other various positioning jigs to a work vise. FIG. 6 shows an intermediate claw holder which is mounted between a fixed claw and a movable claw of a work vise, using the jig mounting device 51 of the present invention to determine the positions of the ends of the work located on both sides of the intermediate claw holder. 14 shows a fourth embodiment in which a prescribed positioning plate 63b is mounted. The positioning plate 63b is a rectangular plate fixed to the center tap provided on the leg of the main body bracket of the jig mounting device with a mounting bolt 58 and protrudes to both sides of the intermediate block 24, thereby forming the intermediate block, the fixed claw, and the intermediate claw. The end faces of the two works sandwiched between the block and the movable claw are defined at the same position.

FIG. 4 shows a second embodiment in which a positioning block having a plurality of positioning rods is fixed to the jig mounting apparatus of the present invention. The positioning block 63a is fixed to a center tap hole provided in the leg portion 52b of the main body bracket of the jig mounting device by a mounting screw 58 via a spacer 59. The positioning block 63a is, like the positioning plate shown in FIG. 6, a rectangular rod-shaped block extending on both sides of the intermediate claw holder. Tap holes are provided at both ends of the rectangular rod at right angles to respective surfaces of the rectangular rod. A stud 65 serving as a positioning rod is fixed in the hole by a fixing nut 66 so as to be stood. Two insertion holes for the mounting bolts at the center of the positioning block are provided in directions orthogonal to each other.

In such a configuration, the mounting bolt 58
By removing the positioning block and rotating the positioning block by 90 degrees and attaching it to the jig mounting device 51, different studs are directed in the direction of the work fixed to the work vise. Various types of workpieces can be positioned. Such an operation is achieved by positioning blocks 63c (third embodiment) as shown in FIG. 5 having a plurality of surfaces 68 at different distances from a plurality of mounting surfaces 67a of the center mounting portion 67 on both sides of the center mounting portion 67. It can also be realized by using.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a positioning jig of the present invention mounted on a work vise by a jig mounting apparatus of the present invention.

FIG. 2 is a front view of the jig mounting apparatus of the present invention.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a front view of a second embodiment of the positioning jig mounted on a work vise by the jig mounting apparatus of the present invention.

FIG. 5 is a perspective view of a third embodiment of the positioning jig.

FIG. 6 is a perspective view of a fourth embodiment of the positioning jig mounted on a work vise by the jig mounting apparatus of the present invention.

FIG. 7 is a plan view schematically showing a state in which a plurality of elongated works are held together by two work vises.

FIG. 8 is a perspective view showing an example of a work vise.

[Explanation of symbols]

 51 Jig mounting device 52 Main unit bracket 53 Holding bracket 54 Pin 55 Compression spring 56 Knob 57 Screw 61 Round bar

Claims (2)

[Claims] An L-shaped main body bracket (52) and an L-shaped pressing bracket (53) pivotally connected by a pin (54) to form a U-shape, and the main body bracket, the pressing bracket, A screw device (57) having a spring (55) for applying a biasing force in the direction of opening the U-shape and a knob (56) for applying a fastening force in the direction of closing the U-shape is interposed therebetween. A jig mounting device for a work vise. 2. A round bar (61) and a jig mounting device (51) according to claim 1, wherein one of the jig mounting devices is a round bar (61).
A work vise positioning jig fixed to one end of the work vise and slidably mounted along the round bar (61).