JP2005342822A - Chuck device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To deal with works of various quality and/or carious forms, and to securely and smoothly chuck such a work. <P>SOLUTION: In the chuck device, a chuck body is provided on a body element of a chuck suspended from a moving portion movably provided to a machine. The chuck device comprises a chuck hook capable of moving backward and forward toward a center direction of the chuck body, a driving plate detachably provided to a rotating shaft of the body element, a rotating means for driving the driving plate, and a coupling support provided on a long groove of the driving plate detachably on the chuck hook. The chuck hook is provided so as to move backward and forward toward the center direction of the driving plate through arc-shaped movement of the coupling support provided in the long groove. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a chuck device, and preferably relates to a non-uniform chuck device in which chuck claws are provided unevenly on a chuck body and a complex workpiece can be chucked using the chuck claws.

  The conventional chuck device is used for a moving body (master jaw, joi) that moves forward and backward (back and forth) in the normal (radial) direction of the chuck main body fixed to the frame, and for the chuck fixed to the moving body. This moving body moves back and forth via hydraulic means, pneumatic pressure, fluid means such as a piston and cam, or mechanism means such as a draw bar, cam and / or link. The chuck claw moves in synchronism with the back and forth movement of the moving body, and a workpiece (workpiece) to be conveyed such as a workpiece is clamped by the chuck claw. As this conventional example, there is a “work chucking device” disclosed in JP-A-2002-36011.

  This type of chuck device is configured to be fixed to a frame, and is not a structure in which the chuck device can be easily attached and detached in accordance with the workpiece configuration. Therefore, it can be considered that this type of chuck device cannot cope with various types of workpiece forms, and it is very difficult to replace the chuck device every time the workpiece form changes. The improvement is desired.

  And the chuck apparatus excellent in the versatility which can perform a chucking operation | work reliably and smoothly in the situation where a workpiece | work is multi quality and / or many forms is desired.

  Prior art documents that meet these demands have been investigated, but the configuration intended by the present invention, that is, the drive body is attached to the rotary shaft provided on the body, can be removed and / or the chuck pawl is attached to the chuck body, and is removed. A structure in which the connecting support latched to the chuck claw is loosely fitted in an annular cut groove (long groove) in plan view provided in a biased manner on the drive body. A structure that moves in an arc along the biased arc-shaped long groove and that moves forward and backward toward the center of the driving body could not be investigated.

  The conventional chuck device has a structure in which almost all of the mechanism is built in the casing except for the chuck claws in the annular chuck body (casing), so that labor and skill are required during assembly. Or, it is possible to consider improvements such as requiring trouble and skill in repair at the time of failure and maintenance management.

JP 2002-36011 A

  As described above, in the conventional chucking device, it is difficult to reliably and smoothly chuck these workpieces in a situation where workpieces (products such as processed parts and finished products) are multi-quality and / or multi-form. Sex is pointed out. Therefore, a chuck device with excellent versatility that can cope with such a situation is desired.

  Therefore, the present invention has a structure in which the driving body is attached to the rotating shaft provided on the body and can be removed and / or the chuck pawl is attached to the chuck body and can be removed. And a structure in which a connecting support locked to the chuck claw is loosely fitted into an annular groove, and the chuck claw is moved back and forth in an arc along the biased arc-shaped long groove. It is intended to correspond to the above-mentioned multi-quality and / or multi-form workpiece, or to reliably and smoothly chuck this type of workpiece.

  The invention of claim 1 provides a chuck device having a structure in which a chuck main body and / or a chuck claw can be attached to and detached from a chuck main body attaching portion, and the chuck claw in a chuck direction position (in a plan view state). It is intended that the angle of the positional relationship) can be freely changed, and that this change can be used to chuck a multi-quality and / or multi-form workpiece. Further, the present invention has a structure in which the driving body is attached to the rotating shaft provided on the body and can be removed and / or the chuck claw is attached to the chuck body and can be removed. A structure in which a connecting support locked to a chuck claw is loosely fitted in an annular cut groove (long groove), and the chuck claw is moved back and forth in an arc along the biased arc-shaped long groove. It is intended to deal with the above-mentioned multi-quality and / or multi-form workpieces, or to provide a chuck device that can reliably and smoothly chuck this type of workpiece.

  According to the first aspect of the present invention, a moving unit provided movably on a processing machine or an arm thereof, and a chuck body suspended from the moving unit is provided with a chuck main body, and can be moved forward and backward toward the center of the chuck main body. At least three chuck claws, a drive plate attached to the rotary shaft of the fuselage and detachable, a rotating means provided on the fuselage for driving the drive plate, and a long groove of the drive plate A connecting support provided on the chuck claw is attached to the chuck claw and is detachable, and the chuck claw is moved toward the center of the drive plate through an arcuate movement of the connecting support provided in the long groove. The chuck device is configured to be movable back and forth.

  The invention of claim 2 provides an optimum chuck device for achieving the object of claim 1, can be a chuck device of an actual machine, facilitates assembly of the chuck device, and ensures operation. Or the certainty of operation, easy maintenance, and saving of the number of parts.

  According to a second aspect of the present invention, a base attached to the main body, a chuck base provided on the base, a chuck main body attaching part rotatably provided on the chuck base, a chuck main body provided on the chuck main body, A connecting part provided on the chuck body, an attaching part for the chuck claw provided on the connecting part, a plurality of chuck claws provided on the attaching part so as to be movable, and a rotating shaft of the connecting part can be attached and detached. A driving plate for chuck claws provided with a long groove having an arc shape in plan view provided in the above, and a connection support provided in the long groove of the driving plate is attached to the chuck claw and is detachably provided. In the chuck device, the chuck pawl is configured to be movable back and forth in the center direction of the drive plate through an arcuate movement of a connecting support provided in a long groove.

  The invention of claim 3 is intended to provide a chuck device that can achieve the object of claim 1 or claim 2, and to provide a chuck claw and a drive plate that are optimal for achieving the object. .

  According to a third aspect of the present invention, the drive plate according to the first or second aspect is provided with an arc-shaped long groove in plan view, and the long groove is provided in a shift relationship in plan view with respect to the drive plate. Is provided in a shift relationship in plan view on the drive plate, and this chuck claw is provided in an uneven manner on the drive plate.

  According to a fourth aspect of the present invention, there is provided a chuck device that can achieve the object of the first or second aspect of the present invention, and also provides a body portion that is optimal for achieving the object, and a movement range in the surface direction of the chuck claw. And the other movements (swivel of the chuck body, uniform and non-uniform positional relationship of the chuck claws in plan view and / or movement of these in plan view) It is intended to have a configuration that can chuck a workpiece of a form.

  According to a fourth aspect of the present invention, there is provided a chuck device in which the main body according to the second aspect is provided so as to be movable in the surface direction of the surface of the processing machine installed on the floor surface.

  According to the first aspect of the present invention, there is provided a moving part provided movably in a processing machine or the like, and a chuck body provided on a chuck body suspended from the moving part, and provided at least so as to be capable of moving forward and backward toward the center of the chuck body. Three chuck claws, a driving plate attached to the rotating shaft of the fuselage and detachable, a rotating means provided on the fuselage for driving the driving plate, and a connecting support provided in a long groove of the driving plate are chucked. The chuck device is provided so that it can be attached to and detached from the chuck plate, and the chuck pawl can be moved back and forth in the direction of the center of the drive plate through the arcuate movement of the connecting support provided in the long groove.

  Accordingly, the present invention provides a chuck device having a structure in which the chuck main body and / or the chuck claw can be attached to and detached from the chuck main body attaching portion, and the chuck claw in the chuck direction position (in a plan view state). The angle of the positional relationship) can be freely changed, and multi-quality and / or multi-form workpieces can be chucked using this change. Further, the present invention has a structure in which the driving body is attached to the rotating shaft provided on the body and can be removed and / or the chuck claw is attached to the chuck body and can be removed. A ring-shaped cut groove (long groove) having a loosely connected connection support locked to the chuck claw, wherein the chuck claw moves back and forth in an arc along the biased arc-shaped long groove. It is possible to use the above-mentioned multi-quality and / or multi-form workpieces, or to provide a chuck device that can reliably and smoothly chuck this type of workpiece.

  The invention according to claim 2 includes a base attached to the main body, a chuck base provided on the base, a chuck main body attachment provided rotatably on the chuck base, a chuck main body provided on the chuck main body, and a chuck main body A connecting portion provided on the connecting portion, an attaching portion for the chuck claw provided on the connecting portion, a plurality of chuck claws provided on the attaching portion so as to be movable, and a rotating portion of the connecting portion that is detachably provided in a plan view. The drive plate for the chuck claw provided with a long arc-shaped groove and the connection support provided in the long groove of the drive plate are attached to the chuck claw and detachable, and the connection support provided in the long groove has an arc shape. This chuck device is provided with a chuck claw so as to be movable back and forth in the direction of the center of the drive plate through the movement of.

  Accordingly, the second aspect of the present invention can provide an optimum chuck device for achieving the object of the first aspect, can be an actual chuck device, can be easily assembled as a chuck device, and can be reliably operated. Or, there are features such as reliability of operation, easy maintenance, saving of the number of parts, and the like.

  According to a third aspect of the present invention, the drive plate according to the first or second aspect is provided with an arc-shaped long groove in plan view, the long groove is provided in a shifted relationship with the drive plate in plan view, and a chuck claw is provided. The chuck device is provided in a shift relationship in plan view on the drive plate, and the chuck pawls are provided unevenly on the drive plate.

  Accordingly, the third aspect of the present invention has the characteristics that it is possible to provide a chuck device that can achieve the object of the first or second aspect, and that it is possible to provide an optimal chuck claw and drive plate that can achieve this object.

  A fourth aspect of the present invention is a chuck device in which the main body according to the second aspect is provided so as to be movable in the surface direction of the surface of the processing machine installed on the floor surface.

  Accordingly, the fourth aspect of the present invention can provide a chuck device that can achieve the object of the first or second aspect of the present invention, and can provide a body portion that is most suitable for achieving the object, and the movement range in the surface direction of the chuck claw. Multi-quality and / or multi-form using synergistic effect of expansion and other movements (swivel of chuck body, equal or non-uniform positional relationship of planar view and / or movement of planar view of these chuck claws) It is possible to provide a configuration capable of chucking the workpiece.

  Hereinafter, a preferable example of the present invention will be described.

  Reference numeral 1 denotes a main body. The main body 1 is movable with respect to a machine such as a machine tool (not shown), a machine tool or the like or a dovetail fitting moving means 100 provided between the machine arm and the machine. It is a structure that can be moved in the rear and front direction (indicated by arrow A in the figure) shown in FIG. And this main-body part 1 is provided in the arm part with which the machine was equipped, and it moves long distance along this arm part, and advantages, such as ensuring of the movement distance of a workpiece and selection of a processing place, can be considered. The configuration of the main body 1 and the moving means 100 can be a moving part of a chuck having the same function. In this example, this component is a moving unit. The moving means 100 is an example, and can be a moving mechanism such as a chain moving mechanism or a link mechanism. In addition, the moving means 100 is not linearly moved on the surface of the main body 1, but is inclined, uneven, It can also be moved.

  Reference numeral 2 denotes a base provided in the through hole of the main body 1 (in the surface direction of the main body 1). The base 2 is supported by a support shaft 3 via a lubricating means (not shown) such as a bearing, a through hole, or lubricating oil. And the base 2 moves up and down via the support shaft 3.

  Reference numeral 4 denotes a chuck base provided on the support shaft 3. The chuck base 4 can be divided so that a fixed side member 400 fixed to the support shaft 3 and an outer member 401 detachably provided on the fixed side member 400 are provided. And consist of Of course, a structure in which the support shaft 3 is fixedly provided in an integrated form is also possible.

  Reference numeral 5 denotes a chuck body mounting portion, and the chuck body mounting portion 5 is rotatably provided on the chuck base portion 4 via a rotating means 6 provided on the chuck base portion 4. The rotating means 6 is composed of a rotating shaft formed with a not-shown uneven strip hanging from the chuck base 4, a pair of operating plates screwed to the rotating shaft, and a drive source that can move the operation. Then, with a working medium such as air or fluid supplied from the drive source, the pair of working plates are moved forward or backward in the opposite direction, and a rotating shaft (described later) is rotated. The chuck body mounting portion 5 is rotated forward and backward by using forward and reverse rotation of the rotating shaft. The rotation means 6 is an example, and any rotation mechanism such as an arm (link) mechanism, a gear mechanism, or a belt hooking mechanism can be adopted. In the figure, reference numeral 600 denotes a pair of connection ports for air.

  The base 2, the support shaft 3, and the chuck body mounting portion 5 can be configured as a chuck body having similar functions. In this example, this component is the body.

  Reference numeral 7 denotes a chuck body which is detachably provided on the chuck body mounting portion 5 using a fastening tool such as a set screw or a chuck. The chuck body 7 is provided with at least three chuck claws 8. The chuck claw 8 is provided so as to be able to advance and retreat toward the center of the chuck body 5 via a dovetail fitting moving means 700 provided in the chuck body 5. The workpiece W is chucked at the forward limit of the chuck pawl 8 (see FIG. 5), and the workpiece W is unchucked at the backward limit of the chuck pawl 8 (see FIG. 4). The dovetail fitting moving means 700 is an example, and is not limited to this example as long as it is a moving mechanism that moves linearly (moves).

  Reference numeral 9 denotes a rotating shaft that penetrates the chuck body 7, and this rotating shaft 9 is connected to rotating means 6 provided on the chuck base 4, and rotates forward and backward (forward and reverse) by the rotation of the rotating means 6. A drive plate 10 is attached to the rotary shaft 9 and is detachable. At least three annular guide grooves 1000 are provided on the drive plate 10 from the outer periphery toward the center (in the center direction). It is established). In this example, as shown in FIG. 4 and FIG. 5, it is established in a biased positional relationship. For example, the distance between A is 90 degrees and the distance between A and B is 120 degrees. Chucking is possible. The drive plate 10 utilizes a configuration that is detachably provided on the rotary shaft 9. For example, instead of the drive plate 10, an annular guide groove 1000 having another positional relationship that is equal or not shown is used. By replacing it with another drive plate (not shown) having the above, there is an advantage that it can be surely and smoothly chucked corresponding to the workpiece W having a shape, structure, physical property, etc. (not shown). Accordingly, there are advantages that diversification of chuck devices, reduction of costs, easy inventory management, easy and smooth operation, and the like can be achieved.

  11 is a connection support loosely fitted in the annular guide cut groove 1000, and this connection support 11 is fixed to the moving side tip portion of the chuck claw 8, and the guide cut-off is made by using the attachment / detachment of the nut 1100. It is provided so as to be attached and detached from the groove 1000, and corresponds to the exchange of the drive plate 10. The chuck claw 8 connected via the connecting support 11 is guided to the annular guide groove 1000 of the drive plate 10 by the drive plate 10 being rotated forward and backward by the rotating shaft 9, and While moving (forward and backward) toward the center direction, movement toward the center direction is ensured via the moving means 700. That is, the moving-side tip of each chuck claw 8 is guided to move in an arc along the annular guide groove 1000, and this arc-shaped movement is caused by the linear direction of the moving means 700 (in this example). In the horizontal and linear directions), the movement is actually toward the central direction. Then, the above-described chucking or unchucking can be achieved by adjusting the annular guide groove 1000 from the outer peripheral portion toward the center portion.

  In the figure, reference numeral 800 denotes a base of the chuck claw 8, and this base 800 is attached to the moving means 700 and is detachable. Further, the chuck tip 801 of the chuck claw 8 can be appropriately selected as a receiving support and a configuration by surface bonding, a plate shape or the like in order to ensure the gripping of the workpiece W.

Front view of the main part of the chuck device 1 is a partially omitted side view of FIG. Plan view showing the relationship between the chuck body mounting part and the chuck body A schematic plan view explaining the relationship between the drive plate and the chuck body, showing the state during unchucking A schematic plan view explaining the relationship between the drive plate and the chuck body, showing the state during chucking

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main part 100 Moving means 2 Base 3 Support shaft 4 Chuck base 400 Fixed side member 401 Outer side member 5 Chuck main body attaching part 6 Rotating means 600 Connection port 7 Chuck main body 700 Moving means 8 Chuck claw 800 Base 801 Tip 9 Rotating shaft 10 Drive plate 1000 Guide groove 11 Connection support 1100 Nut W Workpiece

Claims (4)

  A moving part movably provided on the processing machine, and a chuck body provided on a chuck body suspended from the moving part, and at least three chuck claws provided so as to be movable forward and backward toward the center of the chuck body; Also, a drive plate attached to the rotating shaft of the fuselage and detachable, a rotating means provided on the fuselage for driving the drive plate, and a connecting support provided in a long groove of the drive plate are provided on the chuck claw. A chuck device configured to be freely attached and detached, wherein the chuck pawl is movable back and forth in the center direction of the drive plate through an arcuate movement of a connecting support provided in the long groove. .   A base attached to the main body, a chuck base provided on the base, a chuck main body attachment provided rotatably on the chuck base, a chuck main body provided on the chuck main body, and a chuck main body provided on the chuck main body A connecting portion, an attaching portion for a chuck claw provided on the connecting portion, a plurality of the chuck claws provided movably on the attaching portion, and a plan view provided on the rotating shaft of the connecting portion so as to be removable. The chuck claw drive plate having an arc-shaped long groove and the connection support provided in the long groove of the drive plate are attached to the chuck claw and detachable, and the connection provided in the long groove A chuck device in which the chuck pawl is configured to be movable back and forth in the direction of the center of the drive plate through an arcuate movement of the support.   The drive plate according to claim 1 or 2 is provided with an arc-shaped long groove in plan view, the long groove is provided in a shift relationship in plan view on the drive plate, and the chuck claw is provided on the drive plate. A chuck device that is provided in a shift relationship in plan view, and that the chuck claws are provided unevenly on the drive plate.   A chuck device configured to provide the main body according to claim 2 so as to be movable in a surface direction of a surface of a processing machine installed on a floor surface.

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