CN111113155B - Conveying device - Google Patents

Abstract

The present invention provides a conveying device that can easily take out and put a workpiece with respect to the conveying device and has good operability. The conveying device includes a conveyor having an arm capable of gripping a workpiece, and the arm can move between the inside and the outside of the machine tool, and a storage body having a first casing and accommodating one or more of the arms in the first casing The workpiece is provided with an opening through which the arm can enter and exit the first case, and the first case exposes the workpiece so that the workpiece can be taken out and put in.

Description

Conveyor

technical field

The present invention relates to a conveying device having a conveyor having an arm capable of holding a workpiece, and the arm is movable between the inside and the outside of a machine tool.

Background technique

There is known a processing apparatus in which a conveyor for conveying a workpiece is arranged adjacent to a side wall of a machine tool. In Japanese Patent Laid-Open Publication No. 2017-177287, the arm of the conveyor moves between the inside and the outside of the machine tool through a window formed in the wall surface of the machine tool to exchange workpieces. In this processing apparatus, a magazine for accommodating a plurality of workpieces may be arranged beside the conveyor. The arm of the conveyor holds the workpiece from the rack, takes it out, and feeds the workpiece into the machine tool. The processing unit is provided with a safety fence surrounding the conveyor and the material rack. The safety fence is provided with a door for the operator to take out and put the workpiece relative to the rack.

In this processing device, every time the operator exchanges workpieces, he needs to open the door to enter the inside, and take out and put the workpieces relative to the rack, which is a complicated operation.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a conveying device that can easily take out and put a workpiece with respect to the conveying device and has good operability.

The conveying device of claim 1 includes a conveyor having an arm capable of gripping a workpiece, the arm being movable between the inside and the outside of the machine tool, and a storage body having a first casing and being contained in the first casing One or more of the workpieces are accommodated, wherein the first case is provided with an opening through which the arms can enter and exit, and the first case allows the workpieces to be taken out and put in. Expose freely.

As the "exposed" structure of the workpiece, a part of the first casing may be attached and detached, or it may not be completely detachable like a drawer, or an openable and closable cover (for example, a lower part has a hinge and can be opened to the front side) cover), doors, or sliding and roll-up doors.

According to this structure, the workpiece can be easily taken out and put in. It is not necessary to surround the conveyor and the workpiece storage part with a safety fence with a door, and the door is opened and closed every time the workpiece is exchanged and other operations are performed to enter the inside, so the operability is good.

In the conveying device of claim 2, the second casing accommodates the conveyor in the inside thereof, the first casing exposes the workpiece on one side (front side), and the first casing The side surface is located on the other side (rear side) opposite to the one side than the one side surface of the second casing.

Since the front and rear lengths of the first casing and the second casing are different, a space for taking out the workpiece can be provided. As the "exposed" structure, it is preferable that a part of the first casing is a structure that cannot be completely detached like a drawer, and that an openable and closable cover, a door, or the like protrudes from the side surface of the first casing.

In the conveyance device of claim 3, the storage body has a pull-out portion that accommodates the workpiece, and is configured to be freely pull-out to the one side, and to pull the pull-out portion toward the front side. When pulling out, the one surface of the pull-out portion is located on the other side rather than the one surface of the second housing.

When the pull-out portion is pulled out to the near side, the pull-out portion does not protrude from the second housing, so the front-rear length of the conveying device can be further shortened, and the installation space of the processing device can be further reduced.

In the conveyance apparatus of Claim 4, the said storage body has a draw-out part which accommodates the said workpiece|work, and is comprised so that it can be pulled out to the said one side freely. That is, the said storage body has a pull-out part which accommodates the said workpiece|work, and is comprised so that the said workpiece|work may be exposed so that it can be pulled out freely.

By pulling out the pull-out portion, the operator can easily take out and put in the workpiece.

In the conveying apparatus of Claim 5, the part of the said 2nd housing|casing on the side of the said 1st housing|casing is detachable.

Therefore, maintenance of the conveyor can be easily performed.

Description of drawings

FIG. 1 is a perspective view of the processing apparatus according to the embodiment as viewed from the front.

FIG. 2 is a front view of the processing apparatus.

FIG. 3 is a right side view of the processing apparatus.

FIG. 4 is a plan view of the processing apparatus.

FIG. 5 is a perspective view of the processing apparatus in a state in which the cover of the conveyance unit and the storage body 4 are removed.

FIG. 6 is a perspective view of the conveying device.

FIG. 7 is a plan view of the conveying device.

Fig. 8 is a cross-sectional view taken along line VIII-VIII of Fig. 7

Fig. 9 is a perspective view of a pull-out portion.

FIG. 10 is a plan view of a conventional processing apparatus.

Detailed ways

In the following description, the top, bottom, front, back, left, and right shown in the figure are used. As shown in FIGS. 1 and 2 , the processing apparatus 10 includes a machine tool 1 and a conveying apparatus 5 including a conveying unit 3 and a storage body 4 .

The machine tool 1 has a base 12 and a column 13 provided on the base 12 . The column 13 supports the spindle head 17 so that the spindle head 17 can move up and down. The spindle head 17 supports the spindle 14 rotatably, and the vertical direction of the spindle 14 is the rotation axis direction. A spindle motor 15 is provided on the upper end of the spindle head 17 . The spindle 14 is rotated by the spindle motor 15 .

The column 13 supports the tool magazine 16 . The tool magazine 16 is arranged on the front side of the spindle head 17 . A plurality of tools are held around the tool magazine 16 . The tool magazine 16 rotates, and the tool is installed and removed relative to the spindle 14 by the up and down movement of the spindle head 17 . Below the main shaft 14, a table (machining table) 20 that can move in the left-right direction and the front-rear direction is arranged.

The cover 11 covers the upper side, the front side, the rear side, the right side, and the left side of the machine tool 1 . The door 18 is provided on the front surface of the cover 11 . An operation unit 21 for receiving an operation by an operator and a display unit 22 for displaying an image are provided on the right side of the door 18 . The control device 19 is provided on the rear side of the cover 11 . A reservoir for a coolant used when machining a workpiece 6 to be described later is arranged on the lower side of the control device 19 .

As shown in FIG. 5 , an opening and closing door 23 is provided on the right surface of the cover 11 , that is, the right wall surface of the machine tool 1 .

The conveying part 3 of the conveying apparatus 5 is provided on the right side of the opening and closing door 23 . The conveying part 3 has a conveyor 30 , a guide part 33 , and a second casing 35 . The conveyor 30 has a support table 31 and an arm 32 . The support stand 31 has a columnar shape extending up and down. The arm 32 is provided on the upper end portion of the support base 31 . The arm 32 moves up, down, left and right. The grip portion 32 a is provided at the distal end portion of the arm 32 .

A guide portion 33 for guiding the support table 31 is provided between the lower portion of the support table 31 and the machine tool 1 . The guide portion 33 includes a guide stand (not shown), a front plate portion 33a, and a rear plate portion 33b. The front plate portion 33a and the rear plate portion 33b are provided so as to face each other in the front-rear direction of the guide table. The guide table is connected to the base 12 via the connection portion 2 (see FIG. 2 ). A rail (not shown) is provided on the guide table. The rail extends forward and backward, and the lower part of the support stand 31 is slidably connected to the rail. The support base 31 is connected to a ball screw mechanism (not shown). The ball screw mechanism is arranged on the guide table. Driven by the ball screw mechanism, the support table 31 moves back and forth along the rail.

Two accordion-shaped covers 34 are provided on the right side between the front plate portion 33a and the rear plate portion 33b. One cover 34 connects the lower front side of the support table 31 to the front plate portion 33a, and the other cover 34 connects the lower rear side of the support table 31 to the rear plate portion 33b. The cover 34 covers the rail and the ball screw mechanism from the right side. The cylinder 31a provided in the upper end part of the support stand 31 can move in the left-right direction. The opening/closing door 23 is provided with the recessed part 23a which can engage with the front-end|tip of the cylinder 31a. The cylinder block 31a protrudes leftward and is engaged with the recessed portion 23a, and the support base 31 is moved in the front-rear direction by the action of the ball screw mechanism, so that the opening and closing door 23 is opened and closed. The cylinder block 31a is retracted to the right, and the engagement with the recessed portion 23a is released, so that the support base 31 can move in the front-rear direction without the opening and closing door 23 being operated. The control device 19 controls the movement of the cylinder 31a in the left-right direction, the cylinder 31a is engaged with the recessed portion 23a, and the opening and closing door 23 is opened. The control device 19 controls the movement of the arm 32 that moves between the inside and the outside of the machine tool 1 . The inside and outside of the machine tool 1 refer to the inside and outside of the cover 11 . The control device 19 drives the ball screw mechanism, and the arm 32 moves forward and backward. The cover 34 expands and contracts according to the forward and backward movement of the arm 32, and continuously covers the rail and the ball screw mechanism.

The first receiving portion 7 for receiving the cooling liquid is arranged on the lower side of the guide portion 33 . The first receiving portion 7 has a tray 71 , moving legs 72 , wheels 73 , and an adjusting portion 74 . The tray 71 has a rectangular plate shape extending in the front and rear, and has a wall protruding upward at the peripheral edge. The moving legs 72 are provided at four corners of the tray 71 . Wheels 73 and adjustment portions 74 are provided at the lower ends of the moving legs 72 . After the tray 71 is moved by the wheels 73 and the tray 71 is arranged at a predetermined position, the height of the tray 71 can be adjusted by the adjustment part 74 . The adjustment portion 74 can suppress the movement of the wheel 73 .

As shown in FIG. 6 , the upper and lower surfaces of the second casing 35 are opened, and the second casing 35 has an opening 35 a on the left side surface on the machine tool 1 side. A partial opening on the right side of the second case 35 communicates with an opening 41 a on the left side of the first case 41 of the housing body 4 to be described later.

The length in the vertical direction of the left side surface of the second casing 35 is shorter than the length in the vertical direction of the right side surface. The position of the lower surface of the second casing 35 is defined so that the first receiving portion 7 can be accommodated on the lower side of the lower surface.

Each wall of the second casing 35 includes a plurality of cover plates. The cover plate 35c, the cover plate 35d, the cover plate 35e, and the cover plate 35b on the lower side of the front surface on the front side of the right side are detachably attached by screwing. The cover plate may also be in the shape of a door.

Two connection parts 37 are provided, and they are respectively provided on the upper and lower sides of the left part of the rear side surface of the second casing 35 . The connecting portion 37 extends in the front-rear direction, and the front end surface of the connecting portion 37 is connected to the rear portion of the peripheral edge of the opening and closing door 23 of the machine tool 1 by screwing. An operation panel 36 for operating the conveyor 30 is provided in the center portion of the front surface of the second casing 35 .

The storage body 4 has a first case 41 . The upper surface of the first case 41 is opened, and the first case 41 has an opening 41 a on the left side surface on the side of the second case 35 . The front side of the first case 41 is composed of a cover plate 41b, a cover plate 41c, and a cover plate 41d in this order from the top, and the right side is composed of a cover plate 41e, a cover plate 41f, and a cover plate 41g in this order from the top. The cover plate 41b - the cover plate 41f are detachably attachable and detachable by screwing. The cover plate may also be in the shape of a door. The cover plate 41c has an opening, and the pull-out portion 42 is pulled out from the opening.

As shown in FIG. 7 , the pull-out portion 42 includes a base plate 43 , a mounting plate 44 , a first fixed portion 45 , a movable portion 50 , a platform 54 , and a tray 55 .

The base plate 43 is spanned between the side surfaces at the lower part of the cover plate 41c. The mounting plate 44 is slightly smaller than the base plate 43, and the mounting plate 44 is mounted on the base plate 43 with a plurality of screws 44b after positioning the mounting plate 44 with pins 43a penetrating the base plate 43 in the pin through holes. A second receiving portion (not shown) for receiving the cooling liquid is arranged on the lower side of the base plate 43 .

The mounting plate 44 has an opening 44a in the center. The first fixing portion 45 and the second fixing portion 46 extending in the front-rear direction are provided so as to be fixed to the left and right edge portions of the mounting plate 44 . As shown in FIG. 8 , a second fixing portion 46 extending in the front-rear direction and having a lower height than the first fixing portion 45 is provided inside the first fixing portion 45 . A third fixing portion 48 having a height higher than the second fixing portion 46 and a length in the front-rear direction shorter than the second fixing portion 46 is provided inside the second fixing portion 46 on the right side. A plurality of rollers 47 are attached along the front-rear direction on the outer side surface of the second fixing portion 46 , with the left-right direction as the rotation axis direction. On the upper part of the right side surface of the third fixing portion 48 , a rack 49 extending along the right side surface and having a tooth portion on the upper part is provided.

The movable part 50 is located on the upper side of the roller 47 and has a plate shape extending in the front-rear direction. The first guide portion 51 is interposed between the movable portion 50 and the first fixed portion 45 . The first guide portion 51 guides the movable portion 50 , and the movable portion 50 slides with respect to the first fixed portion 45 . On the inner side surface of the movable portion 50, a pinion gear 52 is provided with the left-right direction as the rotation axis direction. The pinion 52 meshes with the rack 49 .

As shown in FIG. 7 , a plurality of stoppers 61 abutting on the rear end surface of the movable portion 50 are provided at the rear end portion of the mounting plate 44 . The first fixing portion 45 is provided with a sensor 62 for detecting the rear end surface of the stage 54 . The sensor 62 is adjacent to the stopper 61 on the left. The tray 55 has nine holes into which the lower parts of the workpieces 6 are inserted. The platform 54 supports the tray 55 in a state where the left and right edge portions of the lower surface are supported by the upper surface of the first fixing portion 45 .

As shown in FIG. 8 , an inverted-L-shaped attachment is attached to the inner side of each first fixing portion 45 in a state where the short side of the letter L of the inverted-L-shaped attachment portion 54 a abuts on the lower surface of the platform 54 . part 54a. The second guide portion 53 is interposed between the long side portion of the letter L of the attachment portion 54 a and the outer side surface of the movable portion 50 . The second guide portion 53 guides the stage 54 , and the stage 54 slides with respect to the movable portion 50 . The center portion of the platform 54 is opened, and the edge portion of the third receiving portion 56 is provided outside the opening edge portion of the platform 54 .

As shown in FIG. 9 , the front plate 57 has a handle 57 a in the center portion, and the front plate 57 is connected to the side surface of the front end side portion of the movable portion 50 . Wheels 59 and adjustment portions 60 are provided at four corners of the lower end portion of the first housing 41 . The first casing 41 can be moved in the front, rear, left and right directions by the wheels 59 , and after the first casing 41 is arranged at a predetermined position, the height can be adjusted by the adjusting portion 60 . The stopper 60 can suppress the motion of the wheel.

The front and rear lengths of the first casing 41 and the second casing 35 are different. As shown in FIG. 1 , the total front-to-back length of the draw-out portion 42 and the first case 41 when the draw-out portion 42 is pulled out to the near side is equal to or less than the front-to-back length of the second case 35 .

In the above conveying device 5 , the movable portion 50 slides relative to the first fixed portion 45 by the action of the first guide portion 51 by pulling out the handle 57 a from the state where the platform 54 is positioned at the rear of the first housing 41 . The movable portion 50 slides in a supported state supported by the rollers 47 . With the rack and pinion structure, the sliding amount of the platform 54 is doubled with respect to the sliding amount of the movable portion 50 . Thereby, it becomes the state shown in FIG. 1, the stage 54 protrudes from the cover plate 41c, and the tray 55 in which the workpiece|work 6 is inserted is placed on the stage 54. As shown in FIG. Next, when the front plate 57 is pushed in toward the cover plate 41b (see FIG. 6 ), the movable portion 50 slides along the first fixed portion 45 and the platform 54 moves to the rear side.

The sensor 62 is connected to the control device 19 . When the sensor 62 detects the rear end surface of the platform 54, the control device 19 acquires the information that the sensor 62 detects the rear end surface of the platform 54, and operates the conveyor 30. The arm 32 moves rearward under the control of the control device 19 , enters the first housing 41 through the opening 41 a , holds the workpiece 6 on the tray 55 , and takes out the workpiece 6 from the tray 55 . The arm 32 moves forward, enters the machine tool 1 from the opening 35 a, and places the workpiece 6 on the table 20 . The machine tool 1 processes the workpiece 6 .

After the workpiece 6 is processed, the table 20 moves to the second housing 35 side, and the arm 32 holds the workpiece 6 . The arm 32 is moved to the rear side, and the workpiece 6 is placed on the tray 55 . The next workpiece 6 is also processed in the same manner. When the machining of all the workpieces 6 on the tray 55 is completed, the operator pulls out the front plate 57 so that the platform 54 protrudes from the cover plate 41c, and the workpieces 6 are exchanged.

During processing, the machine tool 1 sprays cooling liquid on the workpiece 6 in order to cool the frictional heat. Coolant adheres to the workpiece 6 , and when the workpiece 6 is taken out or placed between the machine tool 1 and the storage body 4 by the arm 32 , the coolant may flow down. Inside the container 4 , the coolant is collected by the third receiving portion 56 . The cooling liquid is collected by the first receiving portion 7 arranged on the lower side of the conveyor 30 via the second receiving portion (not shown) arranged on the lower side of the substrate 43 . Coolant is returned to the sump.

When the conveyor 30 is maintained, the conveyor 30 is moved to the front side, and the operator removes any one of the cover plate 35b to the cover plate 35e. When maintaining the storage body 4, any one of the cover plate 41b to the cover plate 41g is removed. In addition, the cover plate 35b - the cover plate 35e, and the cover plate 41b - the cover plate 41g are not limited to the case where all are detachable. In addition to these cover plates, other detachable cover plates may also be provided. The side surfaces of the first case 41 and the second case 35 may not be divided into a plurality of cover plates.

As shown in FIG. 10 , a magazine 8 for accommodating the workpiece 6 is arranged at a position on the opposite side of the machine tool 1 of the conveyor 30 . The arm 32 of the conveyor 30 holds the workpiece 6 in the magazine 8 and feeds the workpiece 6 into the machine tool 1 . A safety fence 9 is arranged adjacent to the machine tool 1 so as to surround the conveyor 30 and the magazine 8 . The front surface of the safety fence 9 is provided with a door 9a for the operator to take out and put in the workpiece with respect to the magazine.

In the conventional processing apparatus, every time the operator exchanges the workpieces 6, the operator needs to open the door 9a to enter the inside, and take out and put the workpieces 6 on the magazine, which is a complicated operation. The same applies when maintenance is performed. In addition, in order to open and close the door 9a, the front and rear length of the installation space corresponding to the lateral width of the door 9a is required, and there is a problem that a large installation space is required.

In the embodiment, by pulling out the front plate 57, the stage 54 on which the workpiece 6 is placed protrudes, and the workpiece 6 can be easily taken out and put in. It is not necessary to open and close the door 9a of the safety fence 9 to enter the inside every time the work such as the exchange of the workpiece 6 is performed, and the workability is good. A space for opening and closing the door 9a is not required, and the front-rear length of the processing apparatus including the machine tool 1 can be shortened. That is, it is possible to reduce the installation space of the processing device, which is defined by the longest length of the processing device in the front-rear direction and the longest length of the processing device in the left-right direction. The space for pulling out the pull-out portion 42 is not included in the installation space. By removing the cover of the first case 41 or the cover of the second case 35 , maintenance of the storage body 4 or the conveyance unit 3 can be easily performed.

Claims (5)

1. A conveying apparatus, wherein,

the conveying device (5) comprises:

a conveyor (30) having an arm (32) that can grip a workpiece (6), the arm being movable between the inside and the outside of the machine tool (1);

a storage body (4) for storing 1 or a plurality of workpieces in a 1 st case (41), wherein the 1 st case is provided with one opening (41a) on one side surface, and the 1 st case can freely move the workpieces in and out; and

a 2 nd housing (35) that houses the conveyor therein, one side surface of the 2 nd housing facing the 1 st housing being open so as to communicate with the one opening, the other side surface of the 2 nd housing facing the one side surface and facing the machine tool having another opening (35a) that communicates with the interior of the machine tool,

the 1 st housing freely exposes the workpiece on one side,

the one surface of the 1 st case is positioned on the other side opposite to the one surface of the 2 nd case,

the arm is configured to move in and out of the 1 st housing through the one opening and move in and out of the machine tool through the other opening.

2. The delivery device of claim 1,

the housing body has a pull-out portion (42) which houses the workpiece and is configured to be freely pulled out to the one side,

when the pull-out portion is pulled out to the one side, the surface (57) of the one side of the pull-out portion is positioned closer to the other side than the surface of the one side of the 2 nd case.

3. The delivery device of claim 1,

the housing body has a pull-out section (42) which houses the workpiece and is configured to be freely pulled out to one side.

4. The delivery device of claim 1,

the housing body has a pull-out portion (42) that houses the workpiece and is configured to be freely pulled out to the one side.

5. The delivery device of claim 1, 2 or 4,

the 2 nd housing is partially detachable from the 1 st housing side.

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