JPH079752Y2 - Work positioning device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] In this invention, a work placing member receives a work in a raised position, places the work in a machining position in a lowered position, and places the work in a raised position after machining. In a work transfer device for transferring the work to the next step, the work placed on the work mounting member is tilted at the time of raising and lowering the work mounting member and the side edge of the work on the lower position side is tilted. The work piece should be kept in proper contact with the positioning member so that it will not be misaligned. In addition, the present invention relates to a work positioning / conveying device that can accurately convey a workpiece from a raised position after processing to the next step.

[Conventional technology]

Conventionally, as disclosed in Japanese Utility Model Laid-Open No. 62-77676, an elevating table that elevates between a standby position and a welding position by an elevating cylinder is provided, and one end of the elevating table is swingable. A mounting table is provided which is pivotally supported and on which the work is mounted, and the other end of the mounting table is fixed to the lifting table so as to stand upright.
The cylinder is connected to the cylinder rod of the cylinder and the mounting table is swung by the expansion and contraction of the cylinder rod.

[Problems to be solved by the device]

In the above-mentioned conventional example, the other end of the mounting table, on which one end is axially supported on the elevating table, for mounting a work, is pushed up so as to be inclined by the extension operation of the cylinder rod of the second cylinder. In order to suspend a work placed on this mounting table to an arm of a train that travels back and forth between stations, or to receive a work that has been traveling by suspending it from the arm to the mounting table. This is because.

The mounting table is provided with a positioning member that comes into contact with a work of a specific shape, but it is not possible to bring a work having a different shape into contact with the positioning member so as to prevent the placement position from changing. That is, there is a problem that this positioning member is not versatile.

The workpiece positioning and conveying apparatus of the present invention is provided for the purpose of solving the above problems.

[Means for Solving the Problems]

As a means for solving the above problems, the present invention, as shown in the drawings, receives a plate-like work from another transfer device when a work placing member is in a raised position and processes the work in a lowered position. In a workpiece positioning and transporting device that is placed at a position and is transported to the next process while positioning the workpiece at the elevated position after processing, a pair of workpieces is provided so as to be vertically movable on the base and is disposed to face each other. The work placement member and the work placement member are installed between the pair of work placement members,
A rod-shaped fixed mounting member that supports one side of the work received from the other transfer device, and is provided on the base,
An elevating member that elevates and lowers the work placing member and the fixed placing member, and a rod-shaped placing table that supports the other side of the work received from the other transport device and that can elevate with the work placing member. An elevating means which is provided so as to be able to move up and down together with the work placing member, and which raises and lowers the placing table, and which receives the work from one of the fixed supporting member side or the placing table side and the other conveying device. When the attitude control device, which is provided on the low position side of the work at the time, includes a positioning member that contacts one end of the work and restricts the movement of the work, and
When the workpiece mounting members are respectively in the raised position,
The fixed mounting member, the movable mounting base and the positioning member of the other attitude control device are positioned on the extension line of the fixed mounting member, the mounting base and the positioning member of the one attitude control device, and the attitude control is performed. In the vicinity of the device, pressing the work at the elevated position of the work mounting member, while guiding the work on the one attitude control device to the positioning member, the mounting table and the fixed mounting member on. It is characterized in that a carrying means for carrying the device by sliding it to the other attitude control device is provided.

Further, the elevating means is a main body attached to the workpiece placing member, a press plate provided to the main body so as to be able to move up and down, and a pressing plate to which the mounting table is attached, and a biasing force for constantly pressing the pressing plate to one side. Means, an abutting body fixed to the base, and swingably provided on the main body, one end of which abuts on the abutting body as the work placement member moves up and down, and the one end of the aforesaid It may be composed of a pressing body which swings when abutting against the abutting body and presses the pressing plate at the other end to move the pressing plate up and down against the biasing force of the biasing means. .

[Action]

Next, the operation will be described with reference to the drawings. In the receiving state of the work W, the work placing members 1, 1 are in the raised position, and in the raised position, the work placing members 1, 1 are in the raised position.
Since the vertically movable mounting members 4, 4 provided at the upper position are in a position moved upward, and the workpiece W is mounted on the vertically movable mounting members 4, 4 and the fixed mounting member 3, the workpiece W is inclined. And the lower side edge W _{1 of} this inclined work W
However, the workpiece W is positioned by contacting the positioning member 5 provided on the workpiece mounting members 1, 1.

In this way, the work W is positioned and the work W is placed on the work placing member 1,
Since the fixed mounting member 3 of 1 and the vertically movable mounting members 4, 4 are mounted, when the workpiece W descends together with the workpiece mounting members 1, 1, the mounting position of the workpiece W may change. Absent.

Then, at the position where the work placement members 1 and 1 are lowered, the vertically movable placement member 4 is moved downward to restore the work W to a predetermined placement state, and the work W is accurately placed at the processing position. The work W is processed. Even when the work is finished and the work W is raised together with the work placement members 1, 1, the vertically movable placement members 4, 4 are moved upward to place the work W in an inclined state. The side edge W ₁ on the low position side is brought into contact with the positioning member 5 to raise it so that the mounting position of the work W is not deviated, and at that raised position, the workpiece W is fixedly mounted along the positioning members 5 and 22 on the same line. While being slid on the placing member and the placing table, it can be accurately conveyed to another posture control device which is the next process adjacent to the placing member.

〔Example〕

FIG. 1 is a plan view of a work positioning and conveying apparatus of the present invention, FIG. 2 is a left side view thereof, and FIG. 3 is a front view thereof. In this embodiment, the periphery of an opening (sunroof) of a top plate of an automobile is shown. This positioning and conveying device for a work is applied to a so-called hemming press process for bending a work. Reference numerals 1 and 1 denote work placing members for placing a plate-like work W, and an interval larger than the width of the work W is set. Place it facing each other and place the work W
The elevating frame bodies 1a, 1a extending along the longitudinal direction of the elevating frame body, and the collar plates 1b, 1b provided substantially horizontally from the outer surface of the elevating frame bodies 1a, 1a.

2 and 2 are lifting members that are erected on the base to lift and lower the workpiece mounting members 1 and 1, which are air or hydraulic cylinders 2.
a, 2a, piston (not shown), and piston rod 2b, 2b
It is formed by and. And this piston rod 2
The tips of b and 2b are fixed to approximately the center of the collar plates 1b and 1b of the work placing members 1 and 1.

3 is the first of the elevating frame members 1a, 1a forming the work mounting members 1, 1.
It is a fixed mounting member that mounts and supports one side of the work W that is installed and fixed between the front end side in the drawing and the left end side in FIG. 2, and is formed by a rod in this embodiment.

Reference numerals 4 and 4 denote lifting means for a mounting table 4e, which will be described later, provided on the base end side of the elevating frame bodies 1a and 1a in FIG. 1 and the right end side in FIG. Housings 4a, 4 as the main body fixed to the base end side (right end side in FIG. 2)
a, two rods 4b, 4b ', 4b, 4b' inserted vertically into the housings 4a, 4a, and these rods 4b, 4b ', 4
L-shaped connecting plates 4c, 4c fixed to the upper ends of b, 4b ', and supporting plates 4d, 4d mounted on the connecting plates 4c, 4c so as to be adjustable in height,
Springs 4f, 4f ', 4f, 4f as biasing means compressed around the rods 4b, 4b', 4b, 4b 'between the upper ends of the housings 4a, 4a and the lower ends of the connecting plates 4c, 4c. ′ And housing 4
Rods 4b, 4b ', 4b, 4b' protruding downward from the lower ends of a, 4a
Support shafts 4i, 4i installed between the pressing plates 4g, 4g fixed to the lower end of the housing and the brackets 4h, 4h provided on the outer surfaces of the housings 4a, 4a
And a pressing member 4k, 4k in which a V-shaped bent portion is rotatably attached to the support shafts 4i, 4i, and rollers 4j, 4j′4j, 4j ′ are attached at both ends. There is. And work W
A rod-shaped mounting table 4e for mounting and supporting the other side thereof is erected and fixed between the supporting plates 4d, 4d.

5 is a fixed mounting member 3 of the work mounting members ₁ and ₁ for abutting the side edge W ₁ on the low position side of the work W placed in a tilted manner to prevent the mounting position from shifting. Is a positioning member provided further outside the position where is provided.

The above-mentioned main members constitute one attitude control device A of the work positioning and conveying device of the present invention. The other attitude control device B has substantially the same main structure as the one attitude control device A, is provided adjacent to the one attitude control device A, and as shown in FIG. In the state where 1 is raised, one attitude control device A
Of the other posture control device B on the extension lines of the positioning member 5, the fixed mounting member 3 and the mounting table 4e of
22, the fixed mounting member 23 and the mounting table 24e are arranged so as to be positioned.

In addition, 6,6 ', 6, 6'is a flange plate 1b, the upper end of which is horizontally provided on the outer surface of the elevating frame bodies 1a, 1a forming the work mounting members 1, 1.
A guide rod fixed and hung on the lower surface of 1b. The guide rods 6,6 ', 6,6' are fixed to the elevating member 2 substantially horizontally, and housings 8 provided at both ends of supporting members 7,7. 8 ′,
It is inserted in 8,8 'so that it can move up and down.

Numerals 9 and 10 are an actuator and a limit switch for restricting the descending stop position of the work placing members 1 and 1, and the actuator 9 is a screw rod hung on the collar plate 1b of the elevating frame 1a.
Since it is screwed to 9a and is fixed so as to be movable and fixed along the screw rod 9a, the contact timing with the limit switch 10 mounted on the housing 8'through which the guide rod 6'is inserted is adjusted to adjust the workpiece. The lowering stop positions of the mounting members 1 and 1 can be adjusted.

Further, 11 and 12 are an actuator and a limit switch for restricting the ascending / descending position of the work placing members 1 and 1, and the actuator 11 is the lower end of the support plate 11a suspended from the collar plate 1b of the elevating frame 1a. Since it is screwed onto the screw rod 11b which is erected at the bent portion so as to be movable and fixed along the screw rod 11b, the actuator 11 is mounted on the base when the workpiece placing members 1 and 1 are in the raised position. By adjusting the timing of contact with the limit switch 12 provided at the upper end of the upright support pillar 13, the rising / stopping position of the work placing members 1, 1 can be adjusted.

Reference numeral 14 is an abutting body with which the other roller 4j 'of the pressing body 4k forming the vertically movable mounting member 4 abuts, and is provided at the upper end of a supporting arm 13' fixed to the supporting column 13.

Reference numerals 15 and 15 'denote one end W in the width direction of the work W planted on the left end side in FIG. 1 of the rod-shaped mounting table 4e forming the rod-shaped fixed mounting member 3 and the vertically movable mounting member 4. ₂ is a positioning pin to be abutted.

Reference numeral 16 is a lower die of the hemming press provided at the lower position of the work placing members 1 and 1, and the workpiece W is brought to a position near the lower die 16.
There positioning plate 17 to which the other end W ₃ in the width direction of the workpiece W is abutted 'are erected when lowered.

Next, the operation of the work positioning and conveying device will be described. In the receiving state of the work W, the work placing member is placed.
1, 1 is in a raised position, and in this raised position, the work W held and transported by the vacuum coupler 18 which is another transport device is fixed in a rod shape provided on the work placing member 1, 1. on the rod-shaped mounting table 4e forming the mounting member 4 mounting a mounting member 3 mounting vertically movable, contact one end W ₂ in the width direction of the workpiece W to the positioning pins 15, 15 'which is implanted on these Let it be placed. At the raised position of the work placing members 1 and 1, the rod-shaped placing table 4e forming the vertically movable placing member 4 is in a position moved upward, so that the placed work W is inclined. Thus, the lower side edge W _{1 of the} inclined work W abuts the positioning member 5 to position the work W.

Rest members 1,1 mounting work in this state, when descends according lowering of the piston rod 2b to form a lifting member 2, the width direction of the other end W ₃ is the positioning plate of the workpiece W 17,1
7 in contact with the 'descends three sides of the side edges W ₁ across W _2, W ₃ and inclined low position side in the width direction of the workpiece W is completely positioned, in FIGS. 4 and 5 As shown, work W
Lower surface of the hemming press comes into contact with the upper surface of the lower die 16, and the work placing members 1, 1 are further lowered, so that the fixed placing member 3 is separated from the work W, and further the vertically movable placing member 4 is placed. Roller 4j ′ provided at one end of pressing body 4k forming
When the pressing body 4k comes into contact with the contacting body 14, the pressing body 4k is rotated, and the roller 4j provided at the other end of the pressing body 4k presses the pressing plate 4g downward, whereby the rods 4b and 4b 'are springs. By moving downwards against 4f and 4f ', the rod-shaped mounting table 4e provided on the upper ends of these through the connecting plate 4c and the supporting plate 4d is separated from the work W, and the work W is It is completely separated from the fixed mounting member 3 and the vertically movable mounting member 4 provided on the mounting members 1 and 1, and abuts on the lower die 16.

On the other hand, the side edge W ₁ of the work W is in contact with the positioning member 5 and positioned, and in this state, the upper die 19 of the hemming press is guided by the guide rod 20 and descends to perform hemming press working. To do.

When the hemming press process is completed, the elevating member 2
The piston rod 2b forming the above moves upward to raise the work placing members 1 and 1 to return the work W to the original supporting state and move it to the raised position. The work W is moved to the left in FIG. It is pushed by the pushing plate 21 arranged and is transferred to the next processing station 22 arranged on the right side of FIG.

A lot-shaped mounting table that forms the fixed mounting member 3 and the vertically movable mounting member 4 when the work W is pushed and transferred.
With the workpiece W is mounted inclined to 4e, since the side edges W ₁ the low position side of the slope slides while being positioned in contact with the positioning member 5, the workpiece W is table 4e and fixing While being slid on the mounting member 3, it is accurately conveyed to the other attitude control device B which is the next processing station.

In this embodiment, when the work placing member 1 moves to the lowered position, the fixed placing member 3 and the rod-shaped placing table 4e provided on the work placing member 1 are separated from the work W. Although not shown as another embodiment, it is needless to say that processing such as welding can be performed with the work placed. At this time, the mounting table 4e of the rod moves downward, and the work W shifts from the inclined state to the substantially horizontal state, which does not hinder the processing.

[Effect of device]

Since the work positioning and conveying device of the present invention is configured as described above, in the work receiving state,
The work placing member is in the raised position, and in this raised position, the placing table provided on the work placing member is in a position moved upward, and the work is placed on the placing table and the fixed placing member. Therefore, the work is inclined, and the lower side edge of the inclined work W abuts on the positioning member provided on the work placing member to position the work.

When the workpiece thus positioned descends together with the workpiece placing member, the placement position of the workpiece does not change.

Further, at the position where the workpiece placing member is lowered, the placing table is moved downward to restore the workpiece to a predetermined placing state, and the workpiece is accurately placed at the processing position of the workpiece to perform the workpiece processing. Even when the work is finished and the work is lifted together with the work mounting member, the mounting table is moved upward to mount the work in an inclined state and bring the work into contact with the side edge on the low position side to the positioning member. The work piece is raised so that the placement position of the work piece is not displaced, and even when the work piece is pushed and conveyed to the next process at the raised position, the side edge of the inclined work piece on the lower position side becomes the positioning member. Since it slides on the fixed mounting member and the mounting table while being brought into contact with and positioned, there is an effect that the work can be accurately conveyed to the next step.

Further, according to the raising / lowering means of the present invention, since the mounting table is raised / lowered in conjunction with the raising / lowering operation of the work placing member, a complicated control mechanism is not required and the apparatus is simplified.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a work positioning and conveying apparatus of the present invention, FIG. 2 is a left side view of the same, FIG. 3 is a front view of the same, and FIG. FIG. 5 is a left side view of the same and FIG. 5 is a front view of the same. 1 ... Work placement member, 1a ... Elevating frame 1b ... Collar plate, 2 ... Elevating member 2a ... Air or hydraulic cylinder 2b ... Piston rod, 3 ... Fixed placing member 4 ... Elevating means , 4a …… Housing (main body) 4b, 4b ′ …… Rod, 4c …… Coupling plate 4d …… Supporting plate 4e …… Rod mounting table 4f, 4f ′ …… Spring 4g …… Pressing plate, 4h …… Bracket 4i …… Spindle, 4j, 4j ′ …… Roller 4k …… Pressing body, 5 …… Positioning member 6,6 ′ …… Guide rod 7 …… Supporting member, 8,8 ′ …… Housing 9 …… Actuator , 9a ...... Screw rod 10 ...... Limit switch 11 ...... Actuator, 11a ...... Support plate 11b ...... Screw rod 12 ...... Limit switch 13 ...... Support pillar, 13 '...... Support arm 14 ...... Contact body 15 , 15 ′ …… Positioning pin 16 …… Lower mold 17,17 ′ …… Positioning plate 18 …… Vacuum coupler 19 …… Upper mold, 20 …… Guide Head 21 ...... pressing plate 22 ...... positioning member, 23 ...... fixed mounting member, 24e ...... table

Claims (2)

[Scope of utility model registration request] 1. A workpiece mounting member receives a plate-shaped workpiece from another transfer device at a raised position, places the workpiece at a processing position at a lowered position, and positions the workpiece at the raised position after processing, and performs the next step. In a work positioning and transporting device for transporting a workpiece to a workpiece, a pair of workpiece placing members (1, 1) that are provided on a base so as to be able to move up and down and face each other, and the pair of workpiece placing members. A rod-shaped fixed placement member (3) that is installed between the two and supports one side of the work received from the other transfer device, and the work placement member and the fixed placement member that are provided on the base. An elevating member (2) for elevating and lowering,
A rod-shaped mounting table (4e) that supports the other side of the work received from the other transfer device and that can be lifted and lowered together with the work mounting member; and a mounting base that is vertically movable together with the work mounting member. Lifting means for lifting and lowering (4)
And the fixed support member (3) side or the mounting table (4e) side, which is provided on the lower position side of the work when the work is received from the other transport device. An attitude control device including a positioning member (5) that comes into contact with one end of the workpiece and restricts the movement of the work is arranged adjacently, and one of the postures when the work placement member is in a raised position. The fixed mounting member (3), mounting table (4e) and positioning member (5) of the control device
The fixed mounting member, the movable mounting base and the positioning member (22) of the other attitude control device are positioned on the extension line of the position control device, and the work mounting member is raised in the vicinity of the position control device. While pressing the work and guiding the work on the one attitude control device to the positioning member (5, 22), slide on the mounting table and the fixed mounting member, and the other attitude control device. A work positioning and transporting device comprising a transporting means (21) for transporting the work. 2. The elevating means (4) is provided with a main body (4a) attached to a work placing member (1,1) and an elevating body, and the placing table (4e) is attached. A pressing plate (4g), an urging means (4f) for constantly urging the pressing plate to one side, an abutting body (14) fixedly mounted on the base, and sliding on the main body (4a). It is freely provided, and one end contacts the contact body as the work placement member (1) moves up and down, and swings when the one end contacts the contact body and the other end presses the contact body. 2. The work according to claim 1, comprising a pressing body (4k) for pressing the plate (4g) and moving the pressing plate (4g) up and down against the urging force of the urging means. Positioning and transport device.