CN111113155B

CN111113155B - Conveying device

Info

Publication number: CN111113155B
Application number: CN201910978244.XA
Authority: CN
Inventors: 渡边正辉
Original assignee: Brother Industries Ltd
Current assignee: Brother Industries Ltd
Priority date: 2018-10-30
Filing date: 2019-10-15
Publication date: 2022-08-26
Anticipated expiration: 2039-10-15
Also published as: JP7067418B2; JP2020069560A; CN111113155A

Abstract

The invention provides a conveying device, which can easily take out and put in workpieces relative to the conveying device and has good operability. The conveying device comprises: a conveyor having an arm capable of gripping a workpiece, the arm being movable between an inside and an outside of the machine tool; and a storage body which has a 1 st case and stores 1 or more workpieces in the 1 st case, wherein the 1 st case is provided with an opening portion for the arm to come in and go out, and the 1 st case freely exposes the workpieces in a manner that the workpieces can be taken in and out.

Description

Conveying device

Technical Field

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

Background

A machining apparatus is known in which a conveyor for conveying a workpiece is disposed adjacent to a side wall of a machine tool. In japanese patent laid-open publication No. 2017-177287, an arm of a conveyor moves between the inside and the outside of a machine tool through a window formed in a wall surface of the machine tool, and exchanges workpieces. In this processing apparatus, a rack for storing a plurality of workpieces may be disposed beside the conveyor. The arm of the conveyor holds the workpiece from the rack, takes the workpiece out, and feeds the workpiece into the machine tool. The processing device is provided with a safety fence surrounding the conveyor and the material rack. The safety fence is provided with a door for an operator to take out and put in the workpiece relative to the material rack.

In this processing apparatus, when the operator exchanges the workpiece each time, the operator needs to open the door to enter the inside, and take out and put in the workpiece with respect to the rack, which makes the operation complicated.

Disclosure of Invention

The invention aims to provide a conveying device, which can easily take out and put in workpieces and has good operability.

The conveying device according to claim 1 comprises: a conveyor having an arm capable of gripping a workpiece, the arm being movable between an inside and an outside of the machine tool; and a storage body having a 1 st case and storing 1 or a plurality of the works in the 1 st case, wherein the 1 st case is provided with an opening portion for the arm to go in and out, and the 1 st case freely exposes the works so that the works can be taken in and out.

The "freely exposed" structure of the workpiece may be a structure in which a part of the 1 st case is detachable, a structure in which the case is not completely detached like a drawer, a structure in which a lid (for example, a lid having a hinge at a lower portion and opening forward) which can be opened and closed, a door, or a structure in which a door of a sliding or rolling type is used.

With this configuration, the workpiece can be easily taken out and put in. The work machine is not required to surround the conveyor and the workpiece storage portion with a safety fence having a door, and the door is opened and closed to enter the inside of the work machine for each work such as exchange of workpieces, so that the work machine is excellent in operability.

In the conveying device according to claim 2, the 2 nd casing accommodates the conveyor therein, the 1 st casing is configured to freely expose the workpiece on one side (front side), and the one surface of the 1 st casing is located on the other side (rear side) opposite to the one side than the one surface of the 2 nd casing.

Since the 1 st housing and the 2 nd housing have different front-rear lengths, a space for taking out the workpiece can be provided. As the "freely exposed" structure, it is preferable that a part of the 1 st case is not completely detached like a drawer, and an openable and closable lid, a door, or the like is protruded from a side surface of the 1 st case.

In the transport apparatus according to claim 3, the housing body includes a drawer portion configured to house the workpiece and to be freely drawn out to the one side, and when the drawer portion is drawn out to the front side, the one surface of the drawer portion is positioned closer to the other side than the one surface of the 2 nd housing.

When the drawer portion is pulled out to the front side, the drawer portion does not protrude from the 2 nd housing, and therefore, the front-rear length of the conveyor device can be further shortened, and the installation space of the processing device can be further reduced.

In the transport apparatus according to claim 4, the housing body has a pull-out portion configured to house the workpiece and to be freely pulled out to the one side. That is, the housing body has a pull-out portion that houses the workpiece and is configured to be freely pulled out so that the workpiece can be exposed.

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

In the transport apparatus according to claim 5, a part of the 2 nd casing on the 1 st casing side is detachable.

Therefore, the maintenance of the conveyor can be easily performed.

Drawings

Fig. 1 is a perspective view of a processing apparatus in an embodiment 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 with the cover of the conveying unit and the housing 4 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 VIII-VIII of FIG. 7

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

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

Detailed Description

In the following description, the top, bottom, front, rear, left, and right of the drawings are used. As shown in fig. 1 and 2, the machining apparatus 10 includes a machine tool 1 and a conveying device 5, and the conveying device 5 includes a conveying unit 3 and a storage body 4.

The machine tool 1 includes 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 so that the spindle 14 can rotate, and the spindle 14 has a vertical direction as a rotation axis direction. A spindle motor 15 is provided at the upper end of the spindle head 17. The spindle 14 is rotated by a spindle motor 15.

The column 13 supports a tool magazine 16. The tool magazine 16 is disposed on the front side of the spindle head 17. A plurality of tools are held around the magazine 16. The tool magazine 16 rotates, and the tool is attached to and detached from the spindle 14 by the vertical movement of the spindle head 17. A table (machining table) 20 is disposed below the spindle 14 so as to be movable in the left-right direction and the front-rear direction.

The cover 11 covers the upper side, front side, rear side, right side, and 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 coolant used when machining a workpiece 6 to be described later is disposed below the control device 19.

As shown in fig. 5, an opening/closing door 23 is provided on the right surface of the cover 11, i.e., the right wall surface of the machine tool 1.

The right side of the opening/closing door 23 is provided with the conveying section 3 of the conveying device 5. The conveying unit 3 includes a conveyor 30, a guide 33, and a 2 nd casing 35. The conveyor 30 has a support table 31 and an arm 32. The support table 31 is in the shape of a column extending vertically. The arm 32 is provided at the upper end of the support table 31. The arm 32 moves up, down, left, and right. The grip 32a is provided at the distal end 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 table (not shown), a front plate portion 33a, and a rear plate portion 33 b. The front plate portion 33a and the rear plate portion 33b are disposed opposite to each other in the front-rear direction of the guide table. The guide table is connected to the base 12 via a connection portion 2 (see fig. 2). The guide table is provided with a rail (not shown). The rail extends forward and backward, and the lower portion of the support base 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 disposed on the guide table. The support table 31 moves back and forth along the rails by the driving of the ball screw mechanism.

Two bellows-shaped covers 34 are provided on the right side between the front plate portion 33a and the rear plate portion 33 b. One cover 34 connects the lower front side of the support base 31 to the front plate portion 33a, and the other cover 34 connects the lower rear side of the support base 31 to the rear plate portion 33 b. The cover 34 covers the rail and the ball screw mechanism from the right side. The cylinder 31a provided at the upper end of the support table 31 is movable in the left-right direction. The opening/closing door 23 is provided with a recess 23a engageable with the tip end of the cylinder 31 a. The cylinder 31a protrudes leftward and engages with the recess 23a, and the support base 31 moves in the front-rear direction by the ball screw mechanism, so that the opening/closing door 23 opens and closes. The cylinder 31a is retracted rightward, and the engagement with the recess 23a is released, so that the support base 31 can move in the front-rear direction without operating the opening/closing door 23. The control device 19 controls the movement of the cylinder 31a in the left-right direction, and the cylinder 31a engages with the recess 23a to open the opening/closing door 23. The control device 19 controls the movement of the arm 32, and the arm 32 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 hood 34 extends and contracts in accordance with the forward and backward movement of the arm 32, and continuously covers the rail and the ball screw mechanism.

The 1 st receiving portion 7 for receiving the coolant is disposed below the guide portion 33. The 1 st receiving portion 7 has a tray 71, a moving leg 72, a wheel 73, and an adjusting portion 74. The tray 71 has a rectangular plate shape extending in the front-rear direction, 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 an adjusting portion 74 are provided at the lower end portions of the moving legs 72. The tray 71 is moved by the wheels 73, and after the tray 71 is placed at a predetermined position, the height of the tray 71 can be adjusted by the adjusting portion 74. The adjustment portion 74 can suppress the movement of the wheel 73.

As shown in fig. 6, the 2 nd housing 35 has openings on the upper and lower surfaces, and the 2 nd housing 35 has an opening 35a on the left side surface on the machine tool 1 side. The right side surface of the 2 nd case 35 is partially opened and communicates with an opening 41a on the left side surface of the 1 st case 41 of the housing 4 described later.

The length in the up-down direction of the left side surface of the 2 nd case 35 is shorter than the length in the up-down direction of the right side surface. The position of the lower surface of the 2 nd case 35 is defined so that the 1 st receiving portion 7 can be housed below the lower surface.

Each wall of the 2 nd housing 35 includes a plurality of cover plates. The cover plate 35c, the cover plate 35d, and the cover plate 35e having wall surfaces on the front side of the right side surface, and the cover plate 35b on the front side are detachably fixed by screws. The cover plate may also be door-shaped.

The two connecting portions 37 are provided up and down on the left portion of the rear side of the 2 nd housing 35, respectively. The connecting portion 37 extends in the front-rear direction, and a front end surface of the connecting portion 37 is connected to a rear side portion of a peripheral edge of the opening/closing door 23 of the machine tool 1 by screwing. An operation panel 36 for operating the conveyor 30 is provided in the center of the front surface of the 2 nd housing 35.

The housing 4 has a 1 st case 41. The 1 st case 41 has an opening on the upper surface thereof, and the 1 st case 41 has an opening 41a on the left side surface of the 2 nd case 35. The front side surface of the 1 st case 41 is constituted by a cover plate 41b, a cover plate 41c, and a cover plate 41d in this order from above, and the right side surface is constituted by a cover plate 41e, a cover plate 41f, and a cover plate 41g in this order from above. The cover plates 41b to 41f are detachably fixed by screws. The cover plate may also be door-shaped. 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 drawer 42 includes a base plate 43, a mounting plate 44, a 1 st fixing portion 45, a movable portion 50, a stage 54, and a tray 55.

The base plate 43 is erected between the side surfaces at the lower portion of the cover plate 41 c. The mounting plate 44 is slightly smaller than the substrate 43, and after the mounting plate 44 is positioned by a pin 43a penetrating the substrate 43 through the pin through hole, the mounting plate 44 is mounted to the substrate 43 by a plurality of screws 44 b. A 2 nd receiving portion (not shown) for receiving the coolant is disposed below the substrate 43.

The mounting plate 44 has an opening 44a in the center. The 1 st fixing portion 45 and the 2 nd fixing portion 46 extending in the front-rear direction are provided to be fixed to left and right end edges of the mounting plate 44. As shown in fig. 8, a 2 nd fixing portion 46 extending in the front-rear direction and having a height lower than that of the 1 st fixing portion 45 is provided inside the 1 st fixing portion 45. A 3 rd fixing portion 48 having a height higher than that of the 2 nd fixing portion 46 and a length in the front-rear direction shorter than that of the 2 nd fixing portion 46 is provided inside the 2 nd fixing portion 46 on the right side. A plurality of rollers 47 are attached to the outer side surface of the 2 nd fixing portion 46 along the front-rear direction, with the rotation axis direction being the left-right direction. A rack 49 extending along the right side surface and having a tooth portion at the upper portion is provided at the upper portion of the right side surface of the 3 rd fixing portion 48.

The movable portion 50 is located above the roller 47 and has a plate shape extending in the front-rear direction. The 1 st guide portion 51 is interposed between the movable portion 50 and the 1 st fixing portion 45. The 1 st guide portion 51 guides the movable portion 50, and the movable portion 50 slides with respect to the 1 st fixing portion 45. A pinion gear 52 whose rotation axis direction is the left-right direction is provided on the inner side surface of the movable portion 50. The pinion 52 meshes with the rack 49.

As shown in fig. 7, a plurality of stoppers 61 that abut against the rear end surface of the movable portion 50 are provided at the rear end portion of the attachment plate 44. The 1 st fixing portion 45 is provided with a sensor 62 for detecting the rear end surface of the platform 54. The sensor 62 is adjacent to the left stop 61. The tray 55 has 9 holes into which the lower part of the workpiece 6 is inserted. The platform 54 supports the tray 55 with the left and right end edges of the lower surface thereof supported by the upper surface of the 1 st fixing portion 45.

As shown in fig. 8, the inverted letter L-shaped attachment portion 54a is attached to the inside of each 1 st fixing portion 45 in a state where the short side portion of the letter L of the inverted letter L-shaped attachment portion 54a abuts against the lower surface of the platform 54. The 2 nd guide portion 53 is interposed between the long side portion of the letter L of the mounting portion 54a and the outer side surface of the movable portion 50. The 2 nd guide portion 53 guides the platform 54, and the platform 54 slides with respect to the movable portion 50. The center of the platform 54 is open, and the edge of the 3 rd receiving portion 56 is provided outside the open edge of the platform 54.

As shown in fig. 9, the front plate 57 has a handle 57a at a central portion, and the front plate 57 is connected to a side surface of a front end side portion of the movable portion 50. Wheels 59 and an adjusting portion 60 are provided at four corners of a lower end portion of the 1 st case 41. The 1 st housing 41 can be moved forward, backward, leftward and rightward by the wheels 59, and after the 1 st housing 41 is disposed 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 1 st case 41 and the 2 nd case 35 are different in front-rear length. As shown in fig. 1, the total front-rear length of the pullout portion 42 and the 1 st case 41 when the pullout portion 42 is pulled out to the front side is equal to or less than the front-rear length of the 2 nd case 35.

In the above conveyor 5, the handle 57a is pulled out from the state where the platform 54 is positioned at the rear portion of the 1 st housing 41, and the movable portion 50 slides with respect to the 1 st fixing portion 45 by the 1 st guide portion 51. The movable portion 50 slides in a supported state supported by the roller 47. With the rack-and-pinion configuration, the amount of sliding of the platform 54 is twice as much as that of the movable portion 50. As a result, the table 54 is projected from the cover plate 41c, and the tray 55 in which the workpiece 6 is fitted is placed on the table 54, which is in the state shown in fig. 1. Then, the front plate 57 is pushed toward the cover plate 41b (see fig. 6), whereby the movable portion 50 slides along the 1 st fixing portion 45, and the platform 54 moves rearward.

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 information that the sensor 62 detects the rear end surface of the platform 54, and operates the conveyor 30. The arm 32 moves backward under the control of the controller 19, enters the 1 st case 41 through the opening 41a, grips the workpiece 6 on the magazine 55, and takes out the workpiece 6 from the magazine 55. The arm 32 moves forward, enters the machine tool 1 through the opening 35a, and places the workpiece 6 on the table 20. The machine tool 1 machines a workpiece 6.

After the workpiece 6 is machined, the table 20 is moved toward the 2 nd housing 35 side, and the arm 32 grips the workpiece 6. The arm 32 moves backward, and the workpiece 6 is placed on the magazine 55. The next workpiece 6 is also machined in the same manner. When the machining of all the workpieces 6 on the magazine 55 is completed, the operator pulls out the front plate 57, and the table 54 projects from the cover plate 41c to exchange the workpieces 6.

During machining, the machine tool 1 sprays a coolant onto the workpiece 6 to cool the frictional heat. The coolant adheres to the workpiece 6, and when the workpiece 6 is taken in and out between the machine tool 1 and the housing 4 by the arm 32, the coolant may flow down. In the housing 4, the cooling liquid is collected by the 3 rd receiving portion 56. The cooling liquid is collected by the 1 st receiving unit 7 disposed below the conveyor 30 via the 2 nd receiving unit (not shown) disposed below the substrate 43. The cooling liquid is recovered to a liquid sump.

When the conveyor 30 is maintained, the conveyor 30 moves to the front side, and the operator removes any one of the cover plates 35b to 35 e. When the storage body 4 is to be maintained, any one of the cover plates 41b to 41g is removed. The cover plates 35b to 35e and the cover plates 41b to 41g are not limited to those that can be attached and detached. In addition to these cover plates, other removable cover plates may be provided. Each side of the 1 st case 41 and the 2 nd case 35 may not be divided into a plurality of cover plates.

As shown in fig. 10, a rack 8 for storing the workpieces 6 is disposed at a position on the opposite side of the conveyor 30 from the machine tool 1. The arm 32 of the conveyor 30 grips the workpiece 6 in the rack 8 and feeds the workpiece 6 into the machine tool 1. A safety fence 9 is disposed adjacent to the machine tool 1 so as to surround the conveyor 30 and the stack 8. A door 9a for an operator to take out and put in the workpiece with respect to the rack is provided on the front surface of the safety fence 9.

In the conventional processing apparatus, each time the operator exchanges the workpiece 6, the operator needs to open the door 9a to insert the workpiece 6 into the machining apparatus, and the work is complicated to take out and put in the workpiece 6 with respect to the rack. The same applies to the case of performing maintenance. Further, in order to open and close the door 9a, the front-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 table 54 on which the workpiece 6 is placed is protruded, and the workpiece 6 can be easily taken out and put in. When performing work such as exchanging the workpiece 6, it is not necessary to open and close the door 9a of the safety fence 9 to enter the inside, and the operability is good. A space for opening and closing the door 9a is not required, and the front-rear length of the machining apparatus including the machine tool 1 can be shortened. In other words, the installation space of the processing device defined by the longest longitudinal length of the processing device and the longest lateral length of the processing device can be reduced. The space for pulling out the pulling-out portion 42 is not included in the installation space. By removing the cover plate of the 1 st housing 41 or the cover plate of the 2 nd housing 35, maintenance of the storage body 4 or the conveying section 3 can be easily performed.

Claims

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.