JP5943499B1 - Work support device - Google Patents

Abstract

An object of the present invention is to vibrate or position a workpiece by a machining resistance acting when machining a workpiece supported (held) at five points of a reference support member, two one-end-side support members and the other-end-side support member. Provided is a workpiece support device that suppresses displacement and prevents workpiece machining accuracy from being deteriorated. SOLUTION: First support means for supporting (holding) both longitudinal sides on the rear side of the workpiece, second support means for supporting (holding) both longitudinal sides on the front side of the workpiece, and longitudinal and longitudinal orthogonal directions of the workpiece. Center support means for supporting (holding) the central portion and fixing both ends of the workpiece in the longitudinal direction by clamp members that move in the longitudinal orthogonal direction, longitudinal orthogonal direction, and vertical direction on both sides in the longitudinal direction of the workpiece. Clamping means. [Selection] Figure 1

Description

  The present invention relates to a workpiece support apparatus that supports (holds) a workpiece in a stable state in accordance with a predetermined machining posture corresponding to various workpieces having different sizes and shapes, and enables machining with high accuracy.

  The workpiece support device shown in Patent Document 1 is a patented invention owned by the present applicant, and is provided so as to be movable in the longitudinal orthogonal direction at the longitudinal center portion of the workpiece and holds the back surface of the central portion in the longitudinal orthogonal direction. On the other hand, it is provided so as to be movable in the longitudinal orthogonal direction, the longitudinal direction close to each other, the separating direction, and the vertical direction on one end side in the longitudinal orthogonal direction, and one of the longitudinal direction both sides and the longitudinal orthogonal direction on the back surface of the workpiece. Two one-end support members that respectively hold the end sides, and the reference support member are movable in the longitudinal direction toward and away from each other and in the vertical direction on the other end side in the longitudinal orthogonal direction. Two other end side support members which are respectively provided and hold the both sides in the longitudinal direction on the work back surface, and the reference support member is moved in the longitudinal orthogonal direction, In a state where it is positioned at the center in the longitudinal orthogonal direction, each one-end support member is moved in the longitudinal orthogonal direction, the longitudinal direction, and the vertical direction, and the other end-side support member is moved in the longitudinal direction and the vertical direction, respectively. The workpiece can be held in any posture.

  However, in the work support device of the above-mentioned patent document, in the five-point support mode with the reference support member described above, the two one end side support members, and the other end side support member, for example, a drilling tool such as a drill is used. At the time of machining with a workpiece machining tool such as a cutting tool or the like, there is a problem that the machining accuracy of the workpiece is deteriorated due to vibration or displacement of the workpiece accompanying the machining.

  In particular, workpiece processing tools such as drills and end mills that perform processing by rotary motion are subject to rotational resistance, and workpiece processing tools such as cutting blades, the workpiece is likely to be displaced due to the cutting resistance, which makes high processing. It was difficult to maintain accuracy.

Japanese Patent No. 5766156

  The problem to be solved is that only by supporting the workpiece at five points of the reference support member, each of the two one-end-side support members and the other-end-side support member, the rotational resistance and cutting acting during machining by the workpiece processing tool The workpiece is vibrated or displaced due to the resistance, and the machining accuracy for the workpiece is deteriorated.

The workpiece support device according to claim 1 is configured to move in the longitudinal direction and the vertical direction on the rear side in the longitudinal orthogonal direction of the workpiece, and support (hold) the longitudinal sides on the rear side of the workpiece by the respective first support members. 1 support means, second support means for moving (moving) in the longitudinal direction, longitudinal orthogonal direction, and vertical direction on the front side in the longitudinal orthogonal direction of the workpiece and supporting (holding) the longitudinal sides on the workpiece front side by the respective second support members And a workpiece support device provided with a center support means that moves in the longitudinal orthogonal direction at the longitudinal center of the workpiece and supports (holds) the longitudinal and longitudinal central portions of the workpiece by a third support member. longitudinal sides in the longitudinal direction, respectively movably provided in a longitudinal direction perpendicular and vertical direction, the fixed side, a plurality formed in the longitudinal ends of the workpiece A plurality of positioning shafts that can be respectively inserted into the positioning holes and supported so as to be swingable with respect to the fixed side; a clamping member that is inserted into the tip of at least one positioning shaft and grips the workpiece; The most important feature is that both ends in the longitudinal direction of the workpiece are clamped and fixed by a gripping member made of an actuating member that swings the clamp member .
The workpiece support device according to claim 2 is configured to move (in the longitudinal direction and the vertical direction) on the rear side in the longitudinal orthogonal direction of the workpiece, and support (hold) the longitudinal sides on the rear side of the workpiece by the first support members. 1 support means, second support means for moving (moving) in the longitudinal direction, longitudinal orthogonal direction, and vertical direction on the front side in the longitudinal orthogonal direction of the workpiece and supporting (holding) the longitudinal sides on the workpiece front side by the respective second support members And a workpiece support device provided with a center support means that moves in the longitudinal orthogonal direction at the longitudinal center of the workpiece and supports (holds) the longitudinal and longitudinal central portions of the workpiece by a third support member. Are provided so as to be movable in the longitudinal direction, the longitudinal orthogonal direction, and the vertical direction on both sides of the longitudinal direction of the steel plate, and are supported and swingable with respect to the backing plate. A clamp member provided with a plurality of positioning shafts that can be respectively inserted into a plurality of positioning holes formed at both ends in the longitudinal direction of the workpiece on the opposite surface, and the clamp member is slid and positioned in each positioning hole of the workpiece. The most important feature is that both ends in the longitudinal direction of the workpiece are clamped and fixed by a gripping member made of an actuating member for inserting and gripping the shaft.

  In the present invention, the workpiece vibrates due to the machining resistance acting when machining the workpiece supported (held) at five points of the reference support member, each of the two one-end-side support members and the other-end-side support member, It is possible to prevent the workpiece machining accuracy from deteriorating by suppressing displacement.

It is a perspective view which shows the outline of a workpiece | work processing apparatus. It is a top view of a workpiece | work support apparatus. It is a perspective view which shows a 1st support means partially fractured | ruptured. It is a perspective view which shows one second support means and clamp means in a partially broken view. It is a perspective view which shows a center support means partially broken. It is front explanatory drawing which shows the support (holding) position change state of 1 support means. It is a plane explanatory view showing the support (holding) position change state of the first support means. It is front explanatory drawing which shows the support (holding) position change state of a 2nd support means. It is a plane explanatory view showing the support (holding) position change state of the second support means. It is side surface explanatory drawing which shows the support (holding) position change state of a center support means. It is plane explanatory drawing which shows the clamp position change state of a clamp means. It is front explanatory drawing which shows the clamp position change state of a clamp means. It is a partially broken explanatory view which shows the work clamp state by a clamp means. It is explanatory drawing which shows the support and fixed state of the workpiece | work from which a magnitude | size and a shape differ with work support apparatuses.

Provided to be movable in the longitudinal direction, longitudinal orthogonal direction, and vertical direction on both sides of the workpiece in the longitudinal direction, and can be inserted into a plurality of positioning holes formed at both ends of the workpiece in the longitudinal direction on the fixed side. A positioning member is provided and supported so as to be swingable with respect to the fixed side. From the clamping member that is inserted into the tip of at least one positioning shaft and grips the workpiece, and the operation member that swings the clamping member It is an optimum embodiment to clamp and fix both ends in the longitudinal direction of the workpiece with the gripping member .

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 5, a work processing apparatus 1 provided with a work support device according to the present invention includes a work processing device 3 and a work support device 5, and the work processing device 3 includes a plurality of arms 7. Is formed by an articulated robot that performs workpiece processing by rotating and swinging a workpiece processing tool 9 provided at the distal end portion of the arm 7 on the distal end side with the number of axes corresponding to the number of arms. The

Since the articulated robot as the workpiece processing device 3 is conventionally known, detailed description thereof is omitted.

  As the workpiece processing tool 9, a drilling tool such as a drill for forming a hole at a predetermined position of the workpiece W, an end mill for trimming by removing burrs on the periphery of the workpiece W, cutting for cutting the workpiece W or forming a hole. Any of a blade, a laser beam output head, and the like may be used. Further, the workpiece W can be applied to a vehicle bumper made of synthetic resin having a different size and shape for each vehicle type, and a vehicle interior panel (dash panel, door panel, etc.).

  The work support device 5 supports a main support means 13 for supporting the central portion of the work W, a first support means 15 for supporting the rear side of the work W (work processing device 3 side), and a front side of the work W. The second support means 17 and the clamp means 19 for gripping both ends of the work W are arranged.

  In addition, although the 1st support means 15, the 2nd support means 17, and the clamp means 19 which are mentioned later are arrange | positioned as a left-right pair, for convenience of explanation, about each structural member, one code | symbol is attached | subjected. explain.

  The left and right support frames 21 of the first support means 15 disposed at a predetermined height position on the rear side of the main body 11 (on the workpiece processing apparatus 3 side) correspond to the longitudinal direction (also referred to as the left and right direction) of the main body 11 or the workpiece W. The length of the main body 11 extends in the longitudinal direction and is divided into two in the horizontal direction shown in the drawing. The first left and right traveling bodies 25 are supported by the left and right support frames 21 corresponding to the respective sections so as to be independently movable in the left and right directions.

Further, the left and right support frames 21 corresponding to the respective sections have first and second axial axes in the left and right directions, and mesh with first nut portions (not shown) provided on the first and second left and right traveling bodies 25, respectively. Each of the feed screws 27 is rotatably supported. A first electric motor 29 such as a numerically controllable servomotor fixed to the left and right support frames 21 is connected to the shaft end of each first feed screw 27 via a timing belt (not shown). The Each first left-right traveling body 25 is reciprocated in the left-right direction independently of each other as the corresponding first electric motor 29 is driven.

Each first left and right traveling body 25 is provided with a first upper and lower frame 31 extending in the vertical direction, and a first elevating body 33 is supported on each first upper and lower frame 31 so as to be movable up and down. Each first upper and lower frame 31 has an axial line in the vertical direction, and a second feed screw 35 that meshes with a nut portion (not shown) provided in the first elevating body 33 is pivotally supported respectively. A second electric motor 37 such as a servomotor capable of numerical control provided on the corresponding first left and right traveling bodies 25 is provided at the shaft end of each second feed screw 35 via a timing belt (not shown) or the like. Drive coupled. Each first lifting body 33 is lifted and lowered independently of each other as the corresponding second electric motor 37 is driven.

Each first elevating body 33 is attached with a first mounting arm 39 that stands up after extending to the front side, and a first support that elastically supports the back surface of the work W on the upper end portion of each first mounting arm 39. Each member 41 is attached. The first support member 41 is connected to a negative pressure generation source (not shown), and adsorbs a member (not shown) that adsorbs the back surface of the work W, and a clamp member (clamps a projecting piece provided on the back surface of the work W). (Not shown).

The first front and rear frames 43 of the second support means 17 are respectively attached to the left and right sides of the main body 11 shown in the figure, and the first front and rear traveling bodies 47 are supported by the first front and rear frames 43 so as to be movable in the front and rear directions. The

Further, each first front and rear frame 43 has an axis in the front-rear direction, and a third feed screw 49 that meshes with a nut portion (not shown) provided on each corresponding first front and rear traveling body 47 rotates. A third electric motor 51 such as a numerically controllable servo motor provided at one end of the corresponding first front and rear frame 43 is provided at the shaft end of each third feed screw 49 with a timing belt ( (Not shown) or the like. Each first front and rear traveling body 47 is moved in the front and rear direction independently of each other as the corresponding third electric motor 51 is driven.

A first left and right frame 53 extending in the horizontal direction shown in the figure is attached to each first front and rear traveling body 47, and a second left and right traveling body 55 is supported on each first left and right frame 53 so as to be movable in the left and right directions. Is done. Each first left and right frame 53 has an axis line in the left and right direction, and a fourth feed screw 59 that meshes with a nut portion (not shown) provided on the corresponding second left and right traveling body 55 is a shaft that can rotate. Be supported. A fourth electric motor 61 such as a numerically controllable servo motor attached to one end of the first left and right frame 53 is attached to the shaft end of each fourth feed screw 59 via a timing belt (not shown) or the like. Each is drive-coupled. Each second left and right traveling body 55 is moved in the left and right direction independently of each other as the corresponding fourth electric motor 61 is driven.

Each of the second left and right traveling bodies 55 is provided with a second upper and lower frame 63 having a required height, and a second elevating body 65 is supported on each second upper and lower frame 63 so as to be movable up and down. Each second upper and lower frame 63 has an axial line in the vertical direction, and a fifth feed screw 69 that meshes with a nut portion (not shown) provided in the corresponding second elevating body 65 is rotatably supported. The A fifth electric motor 71 such as a numerically controllable servo motor provided on the corresponding second left and right traveling body 55 is provided at the shaft end of each fifth feed screw 69 via a timing belt (not shown). The second elevating bodies 65 are driven and connected, and are raised and lowered independently of each other as the fifth electric motor 71 is driven.

Each second lifting body 65 is provided with a second mounting arm 73 that extends after extending to the rear side and stands upright, and the second mounting arm 73 elastically supports the back surface of the work W on the upper end portion thereof. Support members 75 are respectively attached. The second support member 75 is connected to a negative pressure generation source (not shown), and adsorbs a member (not shown) that adsorbs the back surface of the work W, and a clamp member (clamps a projecting piece provided on the back surface of the work W). (Not shown).

  On the first support means 15 side of each of the first front and rear frames 43, a second front and rear traveling body 77 of the clamp means 19 is supported so as to be movable in the front and rear direction. Each first front and rear frame 43 has an axis parallel to each third feed screw 49, and a sixth feed screw 79 that meshes with a nut portion (not shown) provided on the corresponding second front and rear traveling body 77. Each is rotatably supported.

A sixth electric motor 80 such as a numerically controllable servo motor provided on the corresponding first front and rear frame 43 is driven and connected to the shaft end of each sixth feed screw 79, and each second front and rear traveling body 77 is connected to each other. As the corresponding sixth electric motor 80 is driven, they are moved independently of each other.

  A second left and right frame 81 extending in the horizontal direction shown in the figure is attached to each second front and rear traveling body 77, and a third left and right traveling body 82 is supported on each second left and right frame 81 so as to be movable in the left and right direction. Is done. Each second left and right frame 81 has an axial line in the left and right direction, and a seventh feed screw 83 that meshes with a nut portion (not shown) provided on the corresponding third left and right traveling body 82 is rotatably supported. Is done. A seventh electric motor 85 such as a numerically controllable servo motor provided on the corresponding second left and right frame 81 is driven at each shaft end of each seventh feed screw 83 via a timing belt (not shown). The third left and right traveling bodies 82 are connected and moved independently of each other as the corresponding seventh electric motor 85 is driven.

  A third upper and lower frame 87 is erected on each third left and right traveling body 82, and a third elevating body 89 is supported on each third upper and lower frame 87 so as to be movable up and down. A timing belt 93 is fixed to each third elevating body 89 so as to be wound around a rotating body (not shown) rotatably supported on the upper and lower portions of the corresponding third upper and lower frames 89.

Each lower rotating body is connected to an eighth electric motor 95 such as a numerically controllable servo motor provided on the corresponding third upper and lower frame 89, and each third elevating body 89 corresponds to the corresponding eighth It is raised and lowered by a timing belt 93 that travels with the drive of the electric motor 95.

Each third elevating body 89 is provided with a gripping member 99 for clamping and fixing a predetermined portion of the end portion of the workpiece W by the operation of an operating member 97 such as an air cylinder. As each holding member 99, for example, a plurality of positioning members (the figure shows three examples) can be inserted into a positioning hole Wa provided in advance on a projecting piece Wb provided on the end of the workpiece W on the fixed side. The shaft 99a is provided, and the actuating member 97 provided on the movable side is connected, and the clamp 99b that fits into the distal end portion of the positioning shaft 99a that is inserted into the positioning hole Wa of the workpiece W and protrudes outward is swung. It consists of a supported structure.

Each gripping member 99 may have a configuration in which the fixed side is a receiving plate and at least two positioning protrusions are provided in the clamp portion so as to be inserted into the positioning hole Wa of the workpiece W. Further, a member that attaches a member having a high friction coefficient such as a rubber plate to the opposing surfaces of the receiving plate and the clamp member, and grips the end portion of the workpiece W with a frictional force may be used.

A central support means 13 is arranged at the center of the main body 11 in the left-right direction as shown so as to be located in front of the first support means 15. A rear end portion of a second front-rear frame 105 extending in the front-rear direction is attached to the standing frame 103 of the center support means 13, and a third front-rear travel body 107 moves in the front-rear direction on the second front-rear frame 105. Supported as possible.

The second front and rear frame 105 has an axial line in the front and rear direction, and an eighth feed screw 109 that meshes with a nut portion (not shown) provided on the third front and rear traveling body 107 is rotatably supported by the shaft. The eighth feed screw 109 is drivably coupled to a ninth electric motor 111 such as a numerically controllable servo motor attached to the second front and rear frame 105. The third front-rear travel body 107 is moved in the front-rear direction by the rotation of the eighth feed screw 109 that rotates as the ninth electric motor 111 is driven.

The third front and rear traveling body 107 is provided with a standing arm 113 having a predetermined height, and a third support member 115 that supports the central portion of the back surface of the workpiece W is attached to the top of the standing arm 113. The third support member 115 is connected to a negative pressure generation source (not shown) and clamps a suction member (not shown) that sucks the back surface of the work W, and a protrusion provided at the center of the back surface of the work W. It is good also as a clamp member (not shown).

Next, the work support action of the work support device 5 configured as described above will be described. For example, a work bumper such as a synthetic resin molded vehicle bumper is different in size and shape depending on the vehicle type. When working with workpieces that form holes or remove burrs formed on the periphery, depending on the type (size, shape, etc.) of the workpiece W, the support position (holding position) and the clamp at the end of the workpiece W The position needs to be changed.

In order to change the support (holding) position according to the size or shape of the work W to be supported (held), for example, the sample work is compared with the first to the first support members 41, 75, 115 of the work support device 5. And temporarily supporting (temporarily holding), first, as shown in FIG. 6 and FIG. 7, each first electric motor 29 is driven and controlled so that the corresponding first left and right traveling bodies 25 are located on the rear side of the work W. After moving the first support members 41 to the left and right side support (holding) positions on the rear side of the workpiece W, the second electric motors are moved to the direction away from each other or the direction approaching each other. Each of the motors 37 is driven and controlled, and the corresponding first elevating body 33 is moved upward to move the first support member 41 to a height position where it can be supported (held) on the rear side of the workpiece W in the left-right direction. The work W rear side Supporting the left and right direction (holding) capable make.

In addition, depending on the type of the workpiece W, the support (holding) position by each first support member 41 may be asymmetrical and may differ in height. In that case, the driving amount of the first electric motor 29 corresponding to the movement amount of each first left and right traveling body 25 with respect to the left and right direction corresponds to the amount of movement of each first lifting body 33 with respect to the upper direction. By varying the driving amount of the second electric motor 37, each first support member 41 is moved to a desired left-right direction and vertical position, respectively, so that the left-right direction side behind the workpiece W can be supported (held).

After the above operation or in parallel with the above operation, the ninth front and rear traveling body 107 is controlled by driving the ninth electric motor 111 based on the support (holding) of the left and right direction sides on the rear side of the work W by the first support members 41. The third support member 115 is moved in the front-rear direction so that the third support member 115 is positioned at the center in the front-rear direction of the workpiece W so that it can be supported (held). (See Figure 10)

After the above operation or in parallel with the above operation, each of the third electric motors 51 is driven and controlled to move the corresponding first front and rear traveling body 47 to the front side to support each second support member 75 on the front side of the workpiece W ( Move to the holding side. Further, after each of the above operations or in parallel with the above operations, each of the fourth electric motors 61 is driven and controlled to move the corresponding second left and right traveling bodies 55 in the left and right directions so that each second support member 75 is moved to the front side of the workpiece W. Are moved to the left side support (holding) position side.

Further, after the above operation or in parallel with the above operation, each fifth electric motor 71 is driven and controlled, and the corresponding second elevating body 65 is moved upward to move each second support member 75 to the left and right on the workpiece W front side. It moves to the height position where the direction side can be supported (held), and the left and right direction side on the front side of the workpiece W can be supported (held). (See Figs. 8 and 9)

In addition, since the support height of the center part (the center part of the left-right direction and the front-back direction) of the workpiece | work W by the center support means 13 is constant, it becomes the reference | standard height of a workpiece | work support (holding). For this reason, when the work W is supported (held) with the upper surface thereof in a horizontal state, movement control is performed so that the support heights of the first and second support members 41 and 75 coincide with the support height by the central support means 13. do it. Further, when supporting (holding) the workpiece W so that its upper surface faces the rear side, the support height by the first support member 41 on the rear side is set to the support height by the central support means 13. It is only necessary to control the movement so that the height of the support by the second support member 75 on the front side is increased while being lowered. Further, when supporting (holding) the workpiece W by tilting the upper surface thereof toward the front side, the support height by the first support member 41 on the rear side is made higher than the support height by the central support means 13. In addition, the movement control may be performed so that the support height by the second support member 75 on the front side is lowered.

Further, depending on the type of the workpiece W, the support (holding) position by each second support member 75 may differ in the front-rear direction, the left-right direction, and the height. In that case, the driving amount of the third electric motor 51 corresponding to the movement amount of each first front and rear traveling body 47 with respect to the front-rear direction and the movement amount of each second left and right traveling body 55 with respect to the left-right direction are supported. The drive amount of the fourth electric motor 61 is made different, and the drive amount of the fifth electric motor 71 corresponding to the lift amount of each second lift body 65 with respect to the vertical direction is further varied, so that each second support member 75 is made different. It individually moves to the desired front-rear direction, left-right direction, and vertical position to enable support (hold) of the left-right direction side of the front side of the workpiece.

Next, the first support member 41 moved in the left-right direction and the up-down direction as described above, the second support member 75 moved in the front-rear direction, the left-right direction, and the up-down direction, and the third support member moved in the front-rear direction The operation of clamping and fixing the left and right end portions of the workpiece W supported (held) by 115 will be described. First, each sixth electric motor 80 is driven and controlled to move the corresponding second front and rear traveling body 77 forward and backward. Each of the gripping members 99 is moved to a position in the front-rear direction corresponding to the positioning hole Wa provided in the workpiece W.

In the above state, each of the eighth electric motors 95 is driven and controlled, and the corresponding third elevating body 89 is moved so that each gripping member 99 is positioned at a height corresponding to the positioning hole Wa of the workpiece W. Later, each seventh electric motor 85 is driven and controlled, and the corresponding third left and right traveling bodies 82 are respectively moved in the left and right directions so that the positioning shafts 99a of the respective gripping members 99 are inserted into the positioning holes Wa of the workpiece W. Move and position. In this state, each actuating member 97 is actuated, and the corresponding clamp part 99b is inserted into the positioning hole Wa of the work W and swings toward the positioning shaft 99a projecting outward. Is clamped and fixed in the positioning state. (See FIGS. 11 to 13)

Note that, depending on the type of the workpiece W, the gripping portions at the left and right ends of the workpiece W by the gripping members 99 may differ in the front-rear direction, the left-right direction, and the height. In that case, the drive amount of the sixth electric motor 80 corresponding to the movement amount of each second front and rear traveling body 77 with respect to the front-rear direction and the movement amount of each third left and right traveling body 82 with respect to the left-right direction are supported. The gripping members 99 can be set in a desired manner by varying the drive amount of the seventh electric motor 85 and the corresponding drive amount of the eighth electric motor 95 according to the lift amount of each third lift body 89 in the vertical direction. By moving individually to the front-rear direction, the left-right direction, and the vertical position, the positions at both ends in the left-right direction of the workpiece W can be gripped.

The drive data of the first to ninth electric motors 29, 37, 51, 61, 71, 80, 85, 95, 111 described above corresponds to the first to third support members 41, 75 corresponding to each sample work. , 115 are moved by teaching movement and set by inputting teaching. The drive data for the first to eighth electric motors 29, 37, 51, 61, 71, 80, 85, 95, and 111 include the dimension data of the workpiece W to be processed in addition to the teaching input described above. Numerical data calculated based on the support (holding) position data may be directly input and set.

The rear side of the workpiece W is moved by the first to third support members 41, 75, and 115 moved in the front-rear direction, the left-right direction, and the up-down direction corresponding to the size and shape of the workpiece W processed as described above. After clamping and fixing each end in the left-right direction by the clamping means 19 while supporting (holding) the left-right side, the front-rear direction, the center in the left-right direction, and the left-right side of the front side, the workpiece processing device 3 is driven and controlled. Then, a required machining process is performed on the workpiece W by the workpiece machining tool 9 that moves in at least three axial directions. (See Figure 14)

At that time, since the end portions in the left-right direction of the workpiece W supported (held) by the first to third support members 41, 75, and 115 are fixed by the clamping means 19, the workpiece is caused by machining resistance during machining. It is possible to maintain good machining accuracy by reducing W from being displaced or vibrating.

  In the present embodiment, the first support member 41 is moved in the left-right direction and the up-down direction, the second support member 75 is moved in the front-rear direction, the left-right direction, and the up-down direction according to the difference in size, shape, etc. of the workpiece W. The support member 115 is moved in the front-rear direction and moved to the optimum support (holding) position for the workpiece W to support the workpiece W in a posture suitable for processing and in a stable state (holding), the front-rear direction, the left-right direction. Also, by clamping the left and right ends of the workpiece W supported (held) by the gripping member 99 that moves in the vertical direction, the workpiece W is displaced due to vibration generated during workpiece machining by the workpiece machining tool 9 and resistance during machining. It is possible to avoid the processing accuracy of the workpiece W from being deteriorated due to or vibration.

DESCRIPTION OF SYMBOLS 1 Work processing apparatus 3 Work processing apparatus 5 Work support apparatus 7 Arm 9 Work processing tool 11 Main body 13 Central support means 15 First support means 17 Second support means 19 Clamp means 21 Left and right support frame 25 First left and right traveling body 27 First Feed screw 29 First electric motor 31 First upper and lower frame 33 First elevating body 35 Second feed screw 37 Second electric motor 39 First mounting arm 41 First support member 43 First front and rear frame 47 First front and rear traveling body 49 3 feed screw 51 3rd electric motor 53 1st left and right frame 55 2nd left and right traveling body 59 4th feed screw 61 4th electric motor 63 2nd upper and lower frame 65 2nd raising / lowering body 69 5th feed screw 71 5th electric motor 73 Second mounting arm 75 Second support member 77 Second front and rear traveling body 79 Sixth feed screw 80 Sixth electric motor 81 Second left and right frame 8 Third left and right traveling body 83 Seventh feed screw 85 Seventh electric motor 87 Third upper and lower frame 89 Third elevating body 93 Timing belt 95 Eighth electric motor 97 Actuating member 99 Holding member 99a Positioning shaft 99b Clamping part 103 Standing frame 105 First 2 Front / rear frame 107 Third front / rear traveling body 109 Eight feed screw 111 Ninth electric motor 113 Standing arm 115 Third support member W Work Wa Positioning hole Wb Projection piece

Claims (2)

First support means for moving in the longitudinal direction and the vertical direction on the rear side in the longitudinal orthogonal direction of the workpiece and supporting (holding) both longitudinal sides on the rear side of the workpiece by the respective first support members, the longitudinal orthogonal direction of the workpiece The second support means for moving in the longitudinal direction, the longitudinal orthogonal direction and the vertical direction on the front side of the workpiece and supporting (holding) the longitudinal sides on the workpiece front side by the respective second support members, and the longitudinal center portion of the workpiece In a workpiece support device provided with a central support means that moves in the longitudinal orthogonal direction and supports (holds) the longitudinal direction of the workpiece and the central portion in the longitudinal orthogonal direction by a third support member,
A plurality that can be moved in the longitudinal direction , longitudinal orthogonal direction, and vertical direction on both sides in the longitudinal direction of the workpiece, and can be respectively inserted into a plurality of positioning holes formed at both ends of the workpiece in the longitudinal direction on the fixed side A positioning member is provided and supported so as to be swingable with respect to the fixed side. From the clamping member that is inserted into the tip of at least one positioning shaft and grips the workpiece, and the operation member that swings the clamping member A workpiece support device that clamps and fixes both ends of the workpiece in the longitudinal direction by a gripping member . First support means for moving in the longitudinal direction and the vertical direction on the rear side in the longitudinal orthogonal direction of the workpiece and supporting (holding) both longitudinal sides on the rear side of the workpiece by the respective first support members, the longitudinal orthogonal direction of the workpiece The second support means for moving in the longitudinal direction, the longitudinal orthogonal direction and the vertical direction on the front side of the workpiece and supporting (holding) the longitudinal sides on the workpiece front side by the respective second support members, and the longitudinal center portion of the workpiece In a workpiece support device provided with a central support means that moves in the longitudinal orthogonal direction and supports (holds) the longitudinal direction of the workpiece and the central portion in the longitudinal orthogonal direction by a third support member,
It is provided so as to be movable in the longitudinal direction, the longitudinal orthogonal direction, and the vertical direction on both sides in the longitudinal direction of the workpiece, and is supported so as to be swingable with respect to the receiving plate, and on the opposite surface of the receiving plate, A clamp member provided with a plurality of positioning shafts that can be respectively inserted into a plurality of positioning holes formed at both ends in the longitudinal direction, and the positioning member is inserted into the positioning holes of the workpiece by sliding the clamp members. A workpiece support device that clamps and fixes both ends of a workpiece in the longitudinal direction by a gripping member made of a working member to be gripped .

Images