JPS5927731A - Work moving device - Google Patents

Abstract

PURPOSE:To stabilize the behavior of a moved work through a simple mechanism by allowing a work moving device which performs two-dimensional movement to move in three dimensions. CONSTITUTION:After the work 32 is set in the 1st clamper 20, beams 16 and 18 are moved as shown by arrows A1 and D1, and A2 and D2 to convey the work 32 to the 2nd clamper 22' and then to the 3rd clamper 24. In this case, an air cylinder 36 is driven before fingers 22a and 22b leave the work 32 to press down a press-in head 50, engaging the work 32 with a lower mandrel 68. Then, the cylinder 36 is operated in a drawing-in direction and the beams 16 and 18 are allowed to leave each other as shown by arrows C1 and C2, moving the fingers 22a and 22b away from the work 32. Then, the beams 16 and 18 are moved as shown by arrows D1 and D2 to their original positions and the a press device is put in operation. After press operation, the work 32 is discharged through the 4th clamper 26.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece moving device, and in particular to an improvement of a two-dimensional moving device called a two-dimensional transfer that moves a workpiece two-dimensionally, and which partially moves the workpiece three-dimensionally. The present invention relates to a workpiece moving device that is capable of moving.

FIG. 1 is a plan view showing the configuration of a conventional two-dimensional moving device, which is an example used in a press device. This two-dimensional moving device 1O includes a drive box 12, a driven box 14, a beam 16.18 suspended between both boxes 12.14, and a 117th beam attached to these beams 16.18. It is mainly composed of a work clamp 20, a second work clamp 22, a 31st work clamp 24, and a fourth work clamp 26. The eleventh to fourth workpiece clamps 20 to 26 have fingers 20CL to 26α attached to the beam 16 and fingers 20CL to 26α attached to the beam 18 as shown in the figure.
It consists of 64. Reference numeral 28 indicates the pillars of the press device, and four pillars are distributed as shown in the figure. Note that beam 16
．． 18 is configured to be able to move three-dimensionally as indicated by arrows A1 and A1 and A and C by an electric motor 30 connected to the drive box 12.

The movement of the loaf beam 16,18 is separate from the drive of the press. A plate cam, a lever, etc. are arranged in the drive box 12, and an electric motor 30
The beam 16.18 is configured to convert the rotational force of the beam into linear motion to drive the beam 16.18.

However, in this example, the workpiece 321d is pipe-shaped, and the fingers 201Z of the first clamping device 20,
During the period 20', the liquid is introduced through a chute (not shown). Next, the beam 16 moves in the direction of the approaching force as indicated by IIJ marks A, , A2, and the fingers 20α, 20k grip the work 32. Then beam l l'+, 18 is arrow B, , 8
Moving in two directions, the workpiece 321 is sent to the position of the second clamper 22 shown, and then the beam 16.18 moves in the direction of the separation force (
The workpiece 32 moves in the direction of arrow c, , C2) and leaves the first clamp 20. Then beam 16.18 is arrow 1),
, D, and return to the current position shown. In this way, by the rectangular movement of the beams 16, 18, the workpieces 32 are sequentially ejected from the first clamper through the fourth clamper 26.

An upper mold and a lower mold for pressing (both not shown) are disposed at the position of the second clamping device 22 shown, and the pressing is performed by these molds.

However, when transporting a workpiece using a two-dimensional moving device such as a lever, normally, while the second clamping device 22 is clamping the workpiece 32, the upper die is lowered to hold the workpiece 32, and then the beam 16.18 is The workpiece 32 moves in the separation direction (arrow (bird, C2)) and is securely inserted between the upper mold and the lower mold.
If the mold structure is such that it is impossible to press the workpiece 32 while the fingers 22a, 22k are holding the workpiece 32 between them, the fingers 22a, 22k may be removed from the workpiece 32 before the upper mold and the lower mold press the workpiece 32. The workpiece 32 is now separated from the gripper 2.
4 and time not retained by the mold. As a result, the behavior of the workpiece 32 becomes unstable, and the workpiece 32 may not fit properly into the mold. If the workpiece 32 does not fit properly into the mold, there is a risk that the mold will be damaged. Such problems can be solved by using a three-dimensionally movable device called a three-dimensional transfer as the workpiece moving device, but the three-dimensional transfer has a complicated structure and is expensive. As a result, the cost of work will rise.

An object of the present invention is to provide a workpiece moving device which solves the problems of the prior art described in section 2 and which has a simple mechanism and stabilizes the behavior of the moved workpiece.

In order to achieve this object, the present invention improves a workpiece moving device that was conventionally capable of only two-dimensional movement, and configures it so that it can partially move three-dimensionally. This means a pair of parallel beams, a beam drive device that moves the #1 pair of beams two-dimensionally, - a finger attached to the force beam, and the other beam opposite to the finger. A workpiece moving device comprising a plurality of workpiece grippers each having fingers attached to a
The moving device is characterized in that it is provided with means for urging the workpiece held by the workpiece holding device in a direction perpendicular to the movement plane of the beam.

The present invention will be explained in more detail below with reference to embodiments shown in the drawings.

FIG. 2 is a plan view of a workpiece moving device according to an embodiment of the present invention, in which the same parts as in FIG. 1 of the conventional example are designated by the same reference numerals. This fruit! The device 33 is characterized in that the second gripper 22' is provided with means capable of urging the workpiece 32 in a direction perpendicular to the plane of movement of the beam 16.18 (that is, in the direction of force perpendicular to the plane of the paper). It is something to do.

FIGS. 3 and 4 are an enlarged plan view and sectional view showing the structure of the second clamp 22'. A plate 34 is erected on the beam 18, and an air cylinder 36 is fixed to this plate 34.

Further, an L-shaped lever 38 is supported on the plate 34, and one end of the lever 38 is connected to a piston rod 40 of the cylinder 36. Also, brackets 1-42, 44 are provided at the upper and lower ends of the plate 34, and a guide bar 46 is installed between these brackets 42, 44. A slider 48 is slidably fitted into the guide bar 46. A pushing head 50 that comes into contact with the upper end surface of the workpiece 32 is fixed to the Beano, 161 rule surface of the slider 48, and grooves 52 are bored on both sides of the beam 18 in the longitudinal direction of the slider 48. A slider 54 slidably fitted into the groove 52 is connected to the other end of the lever 38.

Therefore, when the cylinder 36 is actuated to cause the iron 40 to move in and out, the slider 48 is moved in the vertical direction via the lever 38 and slider 54.

Further, as shown in detail in FIG. 3, the fingers 22'W, 22'R are slidably fitted into the guide members 56,58, and grooves 61,63 are provided in the grooves 6163. A spring 60. between the beam ltj, 18.
62 are arranged. 64.66 is this spring 60.6
This is a screw that adjusts the strength of step 2. In this way, the fingers 22' ff and 22' A are pressed toward each other by the spring 6 in the direction of the approaching force, so that the contact against the workpiece 32 is soft.

The operation of the thus constructed embodiment apparatus will now be described. Similarly, the work 32 is placed between the first clamps 20 by a chute (not shown). beam 16.18
As in the conventional example shown in FIG. 1, the workpiece 32 is conveyed between the second clamps 22' by the movements of the arrows A, 7, and A, 2). Then the second clamp 22'
The workpiece 32 is conveyed to a position between the third clamping devices 240 shown in FIG. And figure 22'
Before α, 22'k separates from the workpiece 32, the air cylinder 36 is driven and the pushing head 50 is pushed downward in FIG. 4 to engage the workpiece 32 with the lower mandrel 68. After the workpiece 32 is engaged with the 68 and stabilized, the air cylinder 36
is actuated in the retracting direction and the beam 16.18 is moved in the separating direction (arrow '1%' 2 direction) to separate the fingers 22'1.22' 4 from the workpiece 32. Note that when pushing the workpiece 32 described above, As mentioned above, the fingers 22'α, 22'4 are strongly urged in the direction of the approach force by the springs 60 (52), so that the contact with the workpiece 32 is soft, and therefore the pushing head 50 When the workpiece 32 is pressed, the workpiece 32 smoothly slides and is moved downward.

After the fingers 22'α, 22'-fL are separated from the workpiece 32, the beam 16.18 moves as indicated by arrows 1), , B2 and returns to its original position, after which the press device is operated. After this press work is completed, the knockout bin is activated and the workpiece 32 is pushed up to a state where it can be transported again, and the beams 16 and 18 are moved to A.

- Dl and - l) Perform the movements of 2 and mark A, , 13. , C1, Dl, and the beam 18 moves as indicated by arrows A, ,B, ,C,,1).

Thus beam 16.18 is A, , 13. After completing the movements A7 and B2, the pushing head 5
0 performs the movement of arrow E using the air cylinder 36.

Next, the head 50 returns upward while the beams 16 and 18 are separated, so that the head 50 moves as indicated by arrow F.

As described above, although the device of the present invention is basically a two-dimensional moving device, it is equipped with means that can move the workpiece in a direction perpendicular to this two-dimensional plane.
The drive of the workpiece becomes extremely stable. In the above embodiment, four clamps are installed on each of the beams 16 and 18, but the present invention is not limited to this, and the number of clamps can be varied. Optional. In the above embodiment, only the second clamping device 22 is provided with means for moving the workpiece in the orthogonal direction, but in the present invention, other clamping devices may be provided with this means.

Furthermore, the present invention is not used only for press equipment as explained above, but is generally applied to other equipment that requires moving the lug. , F/i'I A workpiece moving device having a convenient structure and in which the behavior of the moved workpiece is stable Z' is provided.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the configuration of a conventional workpiece moving device, FIG. 2 is a plan view showing the structure of a workpiece moving device according to an embodiment of the present invention, FIG. 3 is a plan view of the main part thereof, and FIG. 4 is a longitudinal sectional view of the same, and FIGS. 5 and 6 are vector diagrams showing the behavior of the beam, respectively. l0133... Workpiece moving device, 12°... Vomiting box, 14... Driven box, 16.18...
・Beam, 20.22.22', 24.26 ... Clamp, 3? ...Work, 36...Air cylinder,
40... Piston rod, 4b... Guide bar,
48...Slider, 52...Groove, 54...
Nameko, 68...Tingu-shaped mandrel. Agent Tatsuyuki Unuma (and 2 others) Enoki Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] (1) A pair of parallel beams, a beam drive device that moves the pair of beams two-dimensionally, a finger attached to one beam, and a finger attached to the other beam opposite to the finger. and a plurality of workpiece holders each having a plurality of fingers, the workpiece being held by at least one of the workpiece holders being moved perpendicularly to the moving plane of the beam. A workpiece moving device characterized in that it is provided with means for biasing in a direction to move the workpiece.