JPH05277862A - Movable table device in orthogonal two direction - Google Patents

Abstract

PURPOSE:To simplify the structure of a movable table device in orthogonal two directions so as to realize a compact size, and to move it to a necessary position rapidly and accurately while moving a work loading table in the floating condition to a pressure plate. CONSTITUTION:At the lower side of a pressure plate 12, an X-direction movable body 15 moved by X-direction guide shaft members 13, and a Y-direction movable body 24 moved by Y-direction guide shaft members 23 furnished to the X-direction movable body 15 are provided, while a work loading table 40 is provided on the pressure plate 12 by position regulating movable up and down with combining legs 31a and 31b, combining plates 32a and 32b, and combining bearings 33, which are combined to the Y-direction movable body 24. Plural air blowoff members are formed on a bottom plate of the work loading table 40, and a pipe is combined to the openings of the air blowoff members, so as to blow off the compressed air from the plural air blowoff members to the pressure plate 12 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for moving a work in two orthogonal directions in order to set the work at an appropriate position with respect to a tool for mounting a component when mounting various components on the work. Moving table device.

[0002]

2. Description of the Related Art In the mass production process of various electronic devices such as tape recorders and disc players, for example, in order to improve the manufacturing efficiency of mechanical chassis of each electronic device,
The automatic assembly process of the mechanical chassis is incorporated. As an automatic assembling apparatus to be used for automatically assembling such a mechanical chassis, there has been proposed an automatic assembling apparatus as described in JP-A-57-212139.

In the conventionally proposed automatic assembling apparatus, for example, when a variety of parts are attached to a mechanical chassis and assembled, the work is called a carrier for holding the mechanical chassis as a work and for carrying and assembling the work. An XY moving table is provided on which the base is placed and which is configured to move the mechanical chassis in two directions (X direction and Y direction) orthogonal to each other via the moving member and the guide member. A working unit is arranged above the XY moving table, and a component mounting tool called a working head is attached to the working unit so as to be vertically movable with respect to the working unit. The mechanical chassis held by is moved by the XY moving table to take a predetermined position suitable for mounting various parts by the working head.

However, in the automatic assembling apparatus thus constructed, the work carrier and the assembling base are XY.
Since it is placed directly on the moving table, various pins and other parts are inserted and fixed in a predetermined mounting hole formed in the work held by the carrier with a relatively large pressure by the working head. When press-fitting work or caulking work of parts is performed, a relatively large pressure applied to the work and acting on the work table via the carrier is directly transmitted to the moving member and the guide shaft member. There is a risk of damage due to the limited pressure receiving capacity. Further, when the moving member of the XY moving table, the guide shaft member, and the like are configured to have a pressure-resistant structure, the entire structure becomes larger, resulting in a significant cost increase.

Therefore, in order to solve this problem, the applicant of the present invention first tried to transmit the pressure acting on the work placing table to the moving member and the guide shaft member, and the like. Each member such as a member is lightened and the configuration is simplified, and further, the entire size is reduced, and it is possible to perform the press-fitting work of the component to the work arranged on the work placement table. We proposed a direction moving table device (Actual fair No. 2-30184). The orthogonal two-way moving table device includes a pressure receiving plate fixed to a base portion, and is guided in a first direction by a first guide shaft member extending below the pressure receiving plate in parallel with the pressure receiving plate. A second direction orthogonal to the first direction, guided by the first moving portion and a second guide shaft member provided on the first moving portion and extending below the pressure receiving plate and parallel to the pressure receiving plate. A second moving part that is moved to the upper side, a connecting arm member that extends from the second moving part, bends from below the pressure receiving plate and reaches above the pressure receiving plate, and moves up and down with respect to this by the connecting arm member. And a work placement table which is movably positionally regulated and arranged on the pressure receiving plate.

Then, the work placement table is moved on the pressure receiving plate via the connecting arm member in accordance with the movement of the first and second guide moving members, and its position is regulated. When pressure is applied to the work placing table from above in this position-regulated state, the work placing table is movable up and down with respect to the connecting arm member, so that the pressure is received without transmitting the pressure to the connecting arm member. The pressure applied to the plate and acting on the work placement table is received by the pressure receiving plate.
And is not transmitted to the second guide moving member.

[0007]

However, in the orthogonal two-way moving table device proposed as described above, the first and second guide moving members and the work positioning function portion composed of the moving members and the pressure receiving plate are provided. Since the pressure receiving function part for the workpiece is configured separately, the positioning function part base and the pressure receiving function part base are required for each, so there is duplication of parts in the device configuration and it is inevitable that the cost will increase. In addition, a gantry structure that attaches the positioning function base and the pressure receiving function base to each is required, which is another step in terms of downsizing, which is a constraint in designing the equipment.

In view of the above point, the present invention consolidates the functions of the positioning function unit base and the pressure receiving function unit base into the same base to further simplify the configuration and enable the overall size reduction and cost reduction. It is an object of the present invention to provide an orthogonal two-way moving table device which also has a sufficient ability to receive pressure acting on a work placement table whose position is regulated by a positioning function part.

[0009]

In order to achieve the above-mentioned object, an orthogonal two-way moving table according to the present invention is provided with a fixed pressure receiving plate, and below the pressure receiving plate and in parallel with the pressure receiving plate. Guided by the extending first guide shaft member,
The first moving body that is moved in the first direction and the second guide shaft member that is provided on the first moving body and extends parallel to the pressure receiving plate below the pressure receiving plate, A second moving body that is moved in a second direction orthogonal to the direction, a connecting member that extends from the second moving body, bends from below the pressure receiving plate and reaches above the pressure receiving plate, and this connecting member And a work placing table which is arranged on the pressure receiving plate such that the work placing table is vertically movable so that the work placing table is floated above the pressure receiving plate. An air passage for guiding compressed air and a plurality of air jets are provided between the pressure guide plate and the pressure guide plate, and a support body for supporting the first guide member is provided below the pressure receiving plate, and the first guide member is supported by the pressure receiving plate. Composed.

[0010]

In the orthogonal two-way moving table according to the present invention having such a structure, the connecting arm member extending from the second moving portion regulates the position of the work placing table above the pressure receiving plate. Then, the connecting member moves in the first direction and the second direction according to the movement of the first guide moving member and the second guide moving member, and as a result, the work placement table is moved by the connecting member as described above. Under the position regulation,
A compressed air layer is formed between the pressure receiving plate and the compressed air ejected from the air ejection port on the bottom surface of the work placement table, and the first direction and the second direction in a uniform floating state on the pressure receiving plate. Will be moved to.

In this way, the pressure receiving plate is moved in the first direction and the second direction.
When pressure is applied from above to the work placing table that moves in the direction of, the work placing table is vertically movable with respect to the connecting member, so that the pressure receiving plate does not transmit pressure to the connecting member. The pressure applied to the work placement table is received by the fixed pressure receiving plate and is not transmitted to the connecting member, the first guide moving member, and the second guide moving member. Therefore, for example, a predetermined carrier holding the work is placed on the work placement table, and various pins and other parts erected on the work are caulked with a predetermined part caulking tool with a relatively large pressure. The caulking work of the components to be fixed can be performed without exerting pressure on the connecting member, the first guide moving member, the second guide moving member, and the like.

The connecting arm member, the first guide moving member, the second guide moving member, etc. do not need to have a pressure resistant structure, and the first guide moving member is supported by the pressure receiving plate by the support. Therefore, the support base of this member can be omitted, the weight and the structure can be simplified, and the entire size can be reduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show the essential parts of an example of an orthogonal two-way moving table device according to the present invention, and FIG. 4 shows the whole.

In the figure, reference numeral 11 designates four pillar members 11
The pressure receiving plate 1 is a pedestal composed of a, 11b, 11c and 11d.
2 is fixed via a bracket 10. The pressure receiving plate 12 is formed of, for example, an iron plate, is made extremely rigid, and fixes the rib members 12a and 12b as necessary.

On the back surface side of the pressure receiving plate 12, two X-direction guide shaft members 13 extending in parallel in the first direction (X direction) are supported by a support body 14 fixed to the pressure receiving plate 12. The X-direction guide shaft member 13 supports the X-direction moving body 15 which is guided by the X-direction guide shaft member 13 and is moved in the X direction. Also, on the back side of the pressure receiving plate 12,
A drive unit 16 for moving the X-direction moving body 15 along the X-direction guide shaft member 13 is fixed by a bracket 17. The drive portion 16 is screwed into a female screw portion 17 provided on the X-direction moving body 15, is supported by a bearing 18 fixed to the back surface of the pressure receiving plate 12, and is a feed screw member parallel to the X-direction guide shaft member 13. 19 and a coupling member 20 is connected to one end of the feed screw member 19 to form a pressure receiving plate 12.
And a drive motor 21 fixed to the back surface of the. Then, the feed screw member 1 is rotated by the rotation of the drive motor 21.
9 is rotated and the female screw portion 17 in which the feed screw member 19 is screwed is fed along the feed screw member 19 to obtain X.
It is supposed that the direction moving body 15 is moved in the X direction under the guidance of the X direction guide shaft member 13.

On the lower surface of the X-direction moving body 15, two Y-direction guide shafts extending in parallel in a second direction (Y direction) orthogonal to the X direction by a support 22 fixed to the lower surface. A member 23 is supported in parallel with the pressure receiving plate 12, and a Y-direction moving body 24 that is guided by these Y-direction guide shaft members 23 and moved in the Y direction is supported. Has a length protruding to the outside of the pressure receiving plate 12. Furthermore, the X-direction moving body 15
Is provided with a drive unit 25 for moving the Y-direction moving body 24 along the Y-direction guide shaft member 23. This drive unit 25 also connects the above-mentioned X-direction moving body 15 to the X-direction guide shaft member 1.
3 is configured by a member similar to the driving unit 16 for moving along the direction 3, and is fixed to the lower surface of the X-direction moving body 15 by being screwed into a female screw portion 26 provided on the Y-direction moving body 24. A drive screw member 28 supported by a bearing 27 and parallel to the Y-direction guide shaft member 23, and connected to one end of the feed screw member 28 via a coupling member 29 and fixed to the X-direction moving body 15. It is composed of a motor 30.

Then, the feed screw member 28 is rotated by the drive motor 30, and the female screw member 26 screwed to the feed screw member 28 is fed along the feed screw member 28 to guide the Y-direction moving body 24 in the Y-direction. It is configured to move in the Y direction under the guidance of the shaft member 23. Connection leg portions 31a and 31b are provided on the upper surfaces of both ends of the Y-direction moving body 24 projecting from both sides of the pressure receiving plate 12, and one end portions of the connection plates 32a and 32b are fixed. 32b is above the pressure receiving plate 12 and in parallel with this, the other end is directed toward the central part of the pressure receiving plate 12 so that Y
Extending in the direction. That is, both connecting plates 32a and 32b
The other end portions of the two are opposed to each other on the pressure receiving plate 12 at a required interval.

As described above, on the other end of each of the connecting plates 32a and 32b facing each other on the pressure receiving plate 12, two cylindrical connecting bearing parts 33 are attached. As shown in FIG. 7, each coupling bearing portion 33 has a cylindrical outer cylinder portion 34, and this outer cylinder portion 34 is fixed to the other end of the coupling plate 32a or 32b by a screw 35. ing. A spherical bearing member 36 is arranged in the outer cylindrical portion 34 so as to be supported by an internal support member 37. Further, a sliding bearing member 38 is engaged inside the spherical bearing member 36 via a spacer 39. It has been stopped. Then, the work mounting table 40 is provided by the Y-direction moving body 24 having the connecting plates 32a and 32b, each of which has two connecting bearings 33 attached to the other end thereof.
Through the connecting bearing portions 33 engaging at the four corners,
The position is regulated on the pressure receiving plate 12 so as to be vertically movable with respect to the Y-direction moving body 24. The work placing table 40 is formed by including a top plate portion 41, a bottom plate portion 42, and a spacer portion arranged between the top plate portion 41 and the bottom plate portion 42, and the spacer portion 43 is a work placing table. In order to increase the pressure resistance of the mounting table 40 and reduce the weight thereof, for example, a honeycomb structure is used. As shown in FIG. 7, engagement shaft members 42 projecting downward are attached by screws 43 to the four corners of the top plate portion 41 at positions corresponding to the coupling bearing portions 33 on the lower surface, respectively. The shaft member 42 is a hollow shaft here, and is slidably inserted into the slide bearing member 38 locked inside the coupling bearing portion 33. As a result, the top plate portion 41 of the work placing table 40 is positionally regulated at the four corners by the connecting bearing portions 33 so as to be vertically movable, and the lower surface of the bottom plate portion 42 connected to the top plate portion 41 via the spacer portion 43. Are opposed to the upper surface of the pressure receiving plate 12. In this way, the work placing table 40 is vertically movable by the Y-direction moving body 24 and its position is regulated on the pressure receiving plate 12.

The work placing table 40 is floated from the pressure receiving plate 12 by compressed air. Therefore, the work placing table 40 is provided on the lower surface side of the bottom plate portion 42 of the work placing table 40 facing the upper surface of the pressure receiving plate 12. As shown by the broken lines in FIG. 8, eight air ejection portions 44 are formed in the shape of recesses, and compressed air is introduced from the outside to each of these air ejection portions 44 to generate air ejection portions. A pipe 46 is arranged to be ejected from an opening 45 formed in 44. When the compressed air guided from the outside by the pipe 46 is ejected from each air ejection portion 44, a layer of compressed air is formed between the lower surface of the bottom plate portion 42 of the work mounting table 40 and the upper surface of the pressure receiving plate 12. Formed, work placement table 4
Since 0 is movable up and down with respect to the Y-direction moving body 24, it moves upward and levitates from the pressure receiving plate 12. The hydraulic caulking machine 50 is arranged above the work placing table 40 configured as described above. This hydraulic caulking machine 5
0 is attached to the upper part of the mount 11 as shown in FIG.
A hydraulic device 51 as a drive source is installed below the pressure receiving plate 12, that is, on a base plate 52 attached to a lower portion of the gantry 11 in a space below the Y-direction moving body 24. Further, a control box 53 for controlling the hydraulic caulking machine 50, the drive units 16 and 25 of the X-direction moving body 15 and the Y-direction moving body 24, and the air ejection drive unit of the work placement table 40 is disposed on the upper part of the gantry 11. There is.

In the orthogonal two-way moving table device according to the present invention constructed as described above, as shown by the one-dot chain line in FIG.
Work 6 like a mechanical chassis of electronic equipment on 1
The carrier 61 holding 0 is placed. Then, as described above, a layer of compressed air is formed between the lower surface of the bottom plate portion 42 of the work mounting table 40 and the upper surface of the pressure receiving plate 12,
When the work placing table 40 is levitated from the pressure receiving plate 12, the driving unit 16 is operated so that the X-direction moving body 15 is accompanied by the Y-direction moving body 24, and thus the work placing table 40 is moved. Accordingly, it is moved in the X direction under the guidance of the X direction guide shaft member 13, and
When the drive unit 25 is operated, the Y-direction moving body 24 is moved in the Y direction together with the work placement table 40 under the guidance of the Y-direction guide shaft member 23.
As described above, since the work placement table 40 is floated from the pressure receiving plate 12 by the compressed air and the sliding friction resistance is significantly reduced, the work placement table 40 is moved in the X direction and the Y direction. The table 40 is the pressure receiving plate 1
The workpiece 60 on the workpiece placement table 40 can be moved freely in the X and Y directions on the workpiece 2 and can be swiftly and accurately moved so as to have an appropriate position with respect to the component mounting tool when mounting the component. ..

When the parts are attached to the work 60 by caulking the parts, the work 60 to which the parts are to be caulked is moved to correspond to the parts caulking machine 50 as shown in FIG. It is assumed to take its lower position. Then, in such a state, the component crimping machine 50 is lowered toward the work as indicated by the arrow D, and the crimping component 6 is crimped with a relatively large pressure.
2 is set to the work 60. Work 6 like this
The pressure applied to the work 60 when the crimping of the crimping component 62 with respect to 0 is transmitted to the work placing table 40 via the carrier 61, and at this time, the work placing table 40 is moved by the Y-direction moving body 24. Since the position of the workpiece placing table 40 is regulated so that it can be moved up and down, the workpiece placing table 40 is pushed down toward the pressure receiving plate 12 without exerting pressure on the Y-direction moving body 24, as indicated by a dashed line in FIG. The bottom surface of the bottom plate portion 42 contacts the top surface of the pressure receiving plate 12 and is stopped. That is, all the pressure applied to the work 60 when the caulking component 62 is caulked to the work 60 is received by the pressure receiving plate 12 via the work mounting table 40, and the Y-direction moving body 2 is moved.
4. Further, the X-direction moving body 15, the X-direction guide shaft member 13, and the Y-direction guide shaft member 2 arranged on the back surface of the pressure receiving plate 12.
I can't tell the third grade.

Therefore, in the example of the orthogonal bidirectional moving table device according to the present invention, the work placing table 4 is used.
X-direction guide shaft member 13, Y-direction guide shaft member 23, and X-direction moving body 15 for moving 0 in the X and Y directions.
Assuming that the weight and simplification of the structure are achieved without constructing the Y-direction moving body 24 and the like with a pressure resistant structure, the work of caulking the parts with respect to the work 60 arranged on the work placement table 40 is performed. It will be possible. In the above case, the caulking component 62 for the work 60
When the caulking is completed, the component caulking machine 50 rises above the work 60 and returns to the original position as indicated by an arrow U.

Of course, the orthogonal two-way moving table device according to the present invention can be used not only for the above-described caulking machine 50 but also for a tool that is operated under pressure, such as a component press-fitting machine.

[0025]

As is clear from the above description, according to the orthogonal bidirectional moving table device of the present invention, the fixed pressure receiving plate is provided, and the work mounting table is arranged on the pressure receiving plate. A moving means such as one guide shaft member and a moving body for moving the work placing table in the X direction and the Y direction on the pressure receiving plate is directly supported on the back surface of the pressure receiving plate and the other moving means is connected to the other moving means. The moving means and the work placing table are connected by a connecting member, and all the pressure applied to the work placing table is received by the pressure receiving plate so that the connecting member and the moving means. Therefore, each part including the moving means such as the connecting member, the guide shaft member, and the moving body is lightened, and the base of the positioning function part and the pressure receiving plate as the moving means. The function of the base of the pressure receiving function part is integrated into the same base, the configuration is significantly simplified, and the bases of both function parts described above are integrated to provide a space for installing the drive mechanism under the base part. As a result, the overall size of the device can be reduced, and the number of constituent parts can be reduced by consolidating the base portion, so that the cost can be reduced. Further, since an air passage for guiding compressed air and a plurality of air ejection ports are provided between the work placing table and the pressure receiving plate, a compressed air layer is formed between the work placing table and the pressure receiving plate. As it is levitated uniformly against the pressure receiving plate, it is moved with the sliding friction resistance significantly reduced, and the work on the work placement table is quickly moved to the proper position for the component mounting tool when mounting the component. And it can move accurately. With this configuration, it is possible to reliably perform the work in a pressurized state such as the caulking work or the press-fitting work of the component on the work placed on the work placement table.

[Brief description of drawings]

FIG. 1 is a perspective view of a partially cut main part of an example of an orthogonal bidirectional moving table device according to the present invention.

FIG. 2 is a front view of the example shown in FIG.

FIG. 3 is a side view with a part omitted.

FIG. 4 is a perspective view generally showing an example of an orthogonal bidirectional moving table device according to the present invention.

5 is a plan view of an X-direction moving unit of the example shown in FIG.

FIG. 6 is a plan view of the Y-direction moving unit.

7 is a partially cutaway side view showing a part of the example shown in FIG. 1 and a part of a component caulking tool in an enlarged manner.

FIG. 8 is a partial plan view of the same.

[Explanation of symbols]

 11 Stand 12 Pressure Plate 13 X Direction Guide Shaft Member 14 Support 15 X Direction Moving Body 23 Y Direction Guide Shaft Member 24 Y Direction Moving Body 31a, 31b Connecting Legs 32a, 32b Connecting Plate 40 Work Placement Table 44 Air Spraying Section 45 opening 46 pipe 50 caulking machine

Claims (1)

[Claims] 1. A pressure receiving plate, a first moving body which is guided by a first guide shaft member extending below the pressure receiving plate and parallel to the pressure receiving plate, and is moved in a first direction, and the first moving body. Second movement which is provided on the moving body and is guided by a second guide shaft member extending below the pressure receiving plate and parallel to the pressure receiving plate so as to be moved in the second direction orthogonal to the first direction. A body, a connecting member that extends from the second moving body, bends from below the pressure receiving plate, and reaches above the pressure receiving plate; and the position of the connecting member is vertically movable with respect to the connecting member. And a work placing table disposed on the pressure receiving plate, and compressed air is provided between the work placing table and the bottom surface of the work placing table so as to float the work placing table from the pressure receiving plate. In addition to providing an air passage for guiding and multiple air outlets, An orthogonal two-way movable table device, wherein a support body that supports the first guide shaft member is provided below the pressure receiving plate.