JPS60100701A - Work setting device for screw measurement - Google Patents

Abstract

PURPOSE:To measure a screw speedily and to automate the whole of the screw measurement fully by automating the work setting consisting of a series of operations such as the loading, inversion, clamping, handling, etc., of a work. CONSTITUTION:Air pressure is applied to the driving device 841 for arm moving mechanism to draw a vertical member 837 toward the tip of an arm 81 through a driving shaft 842. When the arm 81 reaches the position of the work W, this work W is clamped with finger parts 822a and 823b. Then, the work W is clamped by opening/closing mechanism. Thus, the work W is clamped and then the arm 81 moved and returned toward the base end by the arm moving mechanism. When the work W is inverted, the arm 81 is rotated by an inverting part 85 and then the work W is mounted on the table of a lifter and clamped tightly by drawing an operating member 831 to left in a figure by operating the other circuit of the driving circuit.

Description

[Detailed description of the invention] [Field of industrial application] Misfire I4. +4 i't: -1 "--ding, reversal,
Clamping, mounting, etc., are performed without setting the setting device.

[First technology]

The luck of oil well rental, the terminology, requires a high amount of tL,
1 (1) 100% is inspected. One of these is standoff measurement, which measures the screw diameter.

■-1j Is it possible to use a thread gauge with the basic thread diameter as the material to be measured? ;Measure the pH value of the surface and surface of the base plate, and determine the size of the screw diameter (+-1).

fη2m, t-standoff axle-:I is a worker or works (class R screws j2) 4. Receives each piece from the conveyor and places it on the table of the collecting device. A series of operations were carried out in which the workpiece was placed, 1.delta.off and 1j.sigma.d, the workpiece was removed from the table, the screw was placed on a conveyor that conveyed the screws that had been saved, and 1j.sigma. was set on the next workpiece f double. 1,000 liters for Zono/Kome inspection! While it takes il
Jij, Gaso(・)tsu-A7-oTherefore,] set the work that requires ``l!l! force [1 treble-) to save the screw meter d11]. will be charged, fl, te/:).

[LL type of invention]

Unexploded iJ] +'j2,' - In the diary, I looked at '1 and saw it again, loading the work (・n J1,
・N7) and (~), inversion, clamping, handling (1
By automating the workpiece setting, which consists of a series of 9 operations (12-holding, warping +41, and table placement), the screw C□1 measurement can be quickly performed 7, and the entire screw bar 1 measurement can be fully automated. As an EiJ function, our objective is to provide a work setting device for screw measurement that can save labor during inspection.

[Invention of invention]

A device that sets a workpiece by performing rowing, reversal, clamping, handling, etc. of the workpiece (temporary inspection screw) in order to achieve the desired purpose, (,) A cylindrical body. an arm consisting of an arm, a grip provided at the tip of the arm for gripping the workpiece, and a 5-part opening/closing mechanism for the loquat.
A driving opening mechanism, an arm moving mechanism that moves the ground in the direction of the yuzu, and an inversion 11b that rotates the arm and inverts the gripped workpiece. (I)) The holding part has a support part fixed to the tip of the arm, and two fingers are arranged in parallel opposite to the opening/closing mark on the support part f, and To the support part, the above person's finger:'
2/151 lever can be freely rotated 5 to correspond to jls.
0, the valley lever has one end engaged with the corresponding finger base 4:, (c) the above opening/closing mode (, 11-, the above ground), and the operating system 1'+:? In addition to freely inserting and providing the L+ force, to the tip of the operating part 4g, to the 'I'
The above lever turns due to displacement in 11 directions! :1. The lever is engaged with the other end of each lever so that the arm has a base end that displaces the operating member in the axial direction. , A means that A is provided with a bullet 4'12 portion (I) that urges the operating member in the arm proximal direction.
Blue mold.

This kind of + (depending on 0 formation, arm movement t74I+q
, by reciprocating the torsion arm to receive, transport, and deliver the workpieces between the transport conveyor and the scanning device table.
It is possible to do this.

Still, in the gripping part, the drive device j) moves the 1·k part i(
When you pull it toward the base end of the arm, the tip of the operating part lll/I☆
1. Direction to make a counterclaim against JL by rotating the lever that engages with 4 or the fingers that engage by rotating the ends that are not engaged with the 4 actuating member toward each other. 1. Therefore, the tip of the finger should touch the work piece (l! ;1.: Elastic part 4
1 lifts the operation part toward the base end of the arm, and 1 continues to hold the 4-inch workpiece.

On the other hand, when the driving wave h'j presses the operating section layer against the elastic member to move it toward the a side, the lever rotates in the opposite direction, The fingers are turned against each other by ρ·d to release the grip on the workpiece.

Furthermore, the arm is rotated about its axis by the reversing section, and the workpieces being gripped are placed on the table at the appropriate level.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing the Teno ξ screw inspection device,
The workpiece setting device of the present invention is applied to such an inspection device.

This tenor ξ-wire inspection apparatus has a spindle drive section 2 provided above a main body 1, and a spindle 3 and a guide bar 4 hanging down from this section. The lower end of the spindle 3 is provided with a gauge mounting part 5 for mounting a screw gauge 7 thereon. On the other hand, a standoff measuring device 6 is provided at the lower end of the guide bar 4. Further, below these, protruding from the main body 1, loading (receiving, handing over), reversing, clamping, handling (
Workpiece setting device 8 of the present invention performs operations such as gripping 1, workpiece f', ii, table mounting W), loading from 111 feed lines, and all setups for measurement position of the workpiece with a total of 71411 strokes. and a lid 9 on which the workpiece W can be placed and whose vertical position can be set depending on the type of workpiece. be done.

FIGS. 2 and 3 show the operation of an embodiment of the work dictionary device υ゛ of the present invention. Figure 2d is a top view and Figure 3 is a front view.

[Not shown in the figure] The workpiece setting device includes an arm 81,
A gripping portion 82 provided at the tip of the arm and gripping the workpiece.
, an opening/closing mechanism 83 for opening/closing and driving the grip portion 82 , and an arm moving mechanism 84 for moving the arm 81 in the axial direction.
and a reversing section 85 that rotates the arm 81 to reverse the gripped workpiece.

As shown in FIG. 6, the arm 81 is made of a cylindrical body and is attached to the housing 80 via a reversing portion 85 so as to be movable in the axial direction. Moreover, inside this arm 81,
An elastic member 811 made of a coil spring is attached, through which an operating member 831 of an opening/closing mechanism 83, which will be described later, is inserted and which urges the member toward the proximal end of the arm.

The gripping portion 82 provided at the tip of the arm 81 is a fourth
As shown in FIG. 5 and FIG.
3 are arranged in parallel and opposite each other, and two levers 824 and 825 are provided on the support portion 820 corresponding to each of the finger portions 822 and 823.
is rotatably provided.

The valley finger portions 822, 823 are fingertip portions 822a.

823a and finger bases 822b, 823b, J
Li tips 822a, 823a and finger bases 822b, 823
By changing the mounting holes 826, the distance b between the two phase tips 822a and 823a can be set as appropriate. The finger parts 822, 823 are attached to the support part 820 by fitting the bottle 829 into the long hole 828 provided in each finger base part 822b, 823b. Since the elongated hole 828 is opened so that the longitudinal direction is in the direction opposite to the finger part, the finger) key 1182
2,523 f., each of which can be opened and closed in opposite directions. base f' of finger base 822b, 8231]
A notch 827 is provided at each of i+i. -Fingertips to No? A pad 82] is provided on the workpiece W contact surface of tB 822a, 823a.

The levers 82 lI, 825 have a substantially 11-shape, and one end thereof engages with the notch 827. The narrow ends of the levers 824, 825 are located at the tip of the operating member 8:31 of the opening/closing mechanism 83, which will be described later. 1. .

engage with.

As shown in FIG. 6, an opening/closing mechanism 83 that drives the gripping part 82 to open and close is connected to an operating part 831 which is inserted into the arm 81 in a freely removable manner and connected to the base end side of the operating member 831. A driving device 835 is connected via a member 834 and moves the member 831 in the axial direction.

As shown in FIG. 4, the operating member 831 has a distal end protruding from the distal end of the arm 81, and is equipped with an engaging member 832 having a cylinder at both ends. This retaining member 8
32 has the other ends of the levers 824, 825 (notches 82
7) are engaged. Further, as described above, the sleeve 833 is pressed by the elastic member 811 within the arm 81 and is biased toward the arm base end, so the operating member 831 is normally moved toward the arm base end. It has become.

In this embodiment, the driving device 835 is constituted by a cylinder, and is driven by pneumatic pressure or hydraulic pressure. This drive device 8
35 is a mounting member 8 as shown in FIGS. 6 and 7.
36, and the mounting member 836 is attached to the base end of the arm 81 via a ball bearing 812. A vertical member 837 is erected above the mounting member 836. A locking piece 838 that engages with a groove 802 of a guide member 801 provided parallel to the arm 81 from the housing 80 is provided at the upper end of the animal face member 837. is being prevented.

Arm moving mechanism 8 that moves the arm 8N in the axial direction
4, as shown in FIG. and a drive surface 842 connected to the groove 837.

The driving device 841 is made up of, for example, a cylinder, and is filled with air.
Drive by E or oil pressure, drive 1i11t+ 842
move in the axial direction.

As shown in FIGS. 8 to 10, the reversing portion 85 provided in the housing 80 includes a sleeve 851 rotatably mounted on the outer periphery of the arm 8; It comprises a pinion 852 and a rack 853 that meshes with the pinion 852, which are covered by a casing 850 via a ball bearing 856.

The sleeve 851 is provided with a groove 854 in the direction of the inner circumferential axis, and the heartbeat 854 is open in the direction of the arm tip. A cam follower 855 attached to the outer periphery of the arm 8j is engaged with this groove 854, and the rotation of the sleeve 851 is transmitted to the arm 81 via the cam follower 855. When the arm 81 moves toward the distal end, the cam follower 855 moves along the groove 854 and is engaged with the cam follower 855 so as to eventually come out of the groove 854.

The rack 853 is provided in a direction perpendicular to the arm 81 and meshes with the pinion 852. A driving device 859 consisting of a cylinder is connected to the base end of the rack 853 to move the rack 853 back and forth.

Further, as shown in FIG. 10, on the outer periphery of the sleeve 851,
A key 857 is provided, and a stopper 858 is provided on the inner periphery of the goo song 850 so as to be removable.

Next, the operation of this embodiment configured as described above will be explained.

Prior to the description, an example of a conveyor that transfers workpieces to and from the setting device of this embodiment will be described with reference to FIGS. 11 and 12. Here, FIG. 11 is a top view, and FIG. 121 is a front view.

The conveyor shown in these figures includes a large number of rollers 101.
It is a roller conveyor equipped with 7 screws of iJ d.
03, the workpieces W are conveyed in a row by the enlarged IA (J freely adjustable guide 102. There is a transfer section in the medium heat section of this conveyor. 1jiJ force of the transfer section and rearward part are driven by cylinders 105 and 107, respectively. Stotsuno ξ104,
106 is provided to separate the workpiece W to be delivered from other workpieces W before and after it. Further, a fork 108 that is driven up and down by a cylinder 109 is vertically provided below the transfer, and the fork moves up through the gap tbj of the roller 101. Further, in the delivery section, there is a lawn drive mB 110, which drives the roller 101 through a belt.
Rotate to move the workpiece W.

Next, the operation of the embodiment of the present invention will be explained with reference to FIGS. 2.

First, in order to receive the workpiece W from the conveyor, air pressure is applied to the drive device 84 of the arm moving mechanism 84 to move the 'M moving shaft 8.
42 to pull the vertical member 837 toward the distal end of the arm 81. This causes the arm 81 to move toward the tip (see FIG. 6).

At this time, this arm 8] has a certain stroke (sleeve 8
If the cam follower 855 is moved more than the length of the groove 854 in the sieve 854, the cam follower 855 will come off the sieve 854, and the reversing part 85
Even if the arm 81 is driven, the arm 81 does not rotate because it is not engaged with the sleeve 85 (see FIG. 8).

The work W that entered the transfer section of the conveyor at the same time as the movement of the arm 8], or before that, is transferred to the fork 10.
8, it is raised to the height of the grip part 82 of the arm 81. On the other hand, when the opening/closing mechanism 83 is not operated, the arm 81 is operated by the elastic member 811 inside the arm 81.
1 is biased toward the proximal end of the arm 81, and the finger portions 822, 823 of the grip portion 82 are in a closed state. Therefore, arm 81
Until the finger parts 822 and 823 reach the position of the workpiece W, the opening/closing mechanism 83 keeps the finger parts 822 and 823 open.

That is, by applying air pressure to the drive device 835, the operating member 83
1 is moved toward the tip of the arm against the bias of the elastic member 811, the grip lever 82 is moved through the retaining member 832.
4,825, but in Fig. 4 the former is pin 901.90
2 as a fulcrum, the latter rotates counterclockwise, while the latter rotates clockwise. As a result, the finger bases 822b and 823b that engage with these at the notch 827 move in a direction away from each other along the elongated hole 828, and the finger bases 822b and 823b engage with these at the notch 827.
a becomes open. In addition, in order to bring the finger portions 822.82'3 into the fourth closed state, it is sufficient to cause the finger portion 117i to perform an operation completely opposite to the above.

When the arm 81 reaches the position of the workpiece W in this manner, the workpiece W is held between the fingers 822 and 823. Then, the workpiece W is gripped by the opening/closing mechanism 83). After gripping the workpiece, the operation of the drive device 835 is turned off. In this state,
The gripping portions 8 and 2 hold the workpiece W by the force of the elastic member 811.
maintains a grip.

When the workpiece W is gripped, the arm 81 is moved to the arm moving mechanism 8
4 to return the arm 81 in the proximal direction.
When the sleeve 851 returns in the proximal direction, the disengaged cam 855 engages with the groove 854 of the sleeve 851.

Here, if it is necessary to reverse the workpiece W, the rotation arm 81 is rotated by the reversing section 85. That is, by moving the mechanical pivot device 859 and the shaft 853, the pinion 853 is moved.
52 rotates the sleeve 851, and the arm 81 is rotated via the cam follower 855 that engages with the groove 854 (see Figures &18 and Figure 9). In addition,
The reversal angle is set by bringing the key 857 into contact with the stop horn Q858, as shown in FIG. The angle is 180° if the work W is a coupling, and 90' if the work W is a tool joint, and FIG. 10 shows the former case. 900 can be set by adding a key 903.

By the way, when the operating member 831 is pulled toward the base end of the arm 81 by the drive 'HW 835 to maintain the grip on the workpiece W, the shoulder of the connecting member 834 and the connecting part 839 at the base end of the arm 8J are connected. During reversal, a large thrust pressure will be applied between the two. Therefore, in the present invention, as described above, the operation of the drive device 835 is turned off and the elastic member 811 is turned off.
This device maintains the grip on the workpiece by using only the gripper.

Therefore, the above-mentioned thrust pressure is not applied (see FIG. 6).

After inverting the workpiece W, the workpiece W f: 2K is placed on the table of the lifter 9 shown in FIG. The workpiece W can be firmly tightened by pulling the workpiece W. After this, the screw gauge 7 is screwed in by rotating the spindle 30 times, and the standoff measurement is performed using the standoff measuring device 6. After the measurement, the workpiece W is W
While holding the arm 81, move it toward the tip and position it on the conveyor. Next, open the grip part 82,
Place the workpiece W on the fork 108.

On the conveyor to which the workpiece W has been delivered, the fork 108 is lowered to place the workpiece W on the roller 101, and after releasing the roller drive unit 1], 04, 106, the roller drive unit 1], 0yoshi roller 101 is moved. is rotated to send out the work W to the rear, and at the same time, the uninspected work is newly introduced into the delivery section.

Thereafter, by repeating the above-described operations, the workpiece W is received from the conveyor and automatically set in the defecating device.

〔Effect of the invention〕

As explained above, the present invention is configured as described above, so that a series of operations such as loading, reversing, clamping, and handling of the workpiece from the p1 conveyance line can be performed quickly and accurately without requiring human labor. This has the effect of making it possible to automate a series of workpiece setting operations, quickly measuring screws, and making it possible to fully automate screw measurement, thereby saving labor during inspection. In addition, by automating the operations necessary to apply lateral strain to the workpiece ξ-screw, we can eliminate measurement variations and improve the deviation of the screw.
'It can be easily incorporated into any construction, and is particularly designed to accommodate different types of workpieces, offering great flexibility.

[Brief explanation of the drawing]

Fig. 2 is a top view showing an outline of an embodiment of the work setting device of the present invention, Fig. 3 is a front view thereof, and Fig. 4 is an illustration of the above embodiment.゛Growing up J
, FIG. 5 is a front view thereof, and FIG. Figure 7 is A
, -A sectional view, FIG. 8 is a sectional view not showing the inverted part of the above-mentioned 1i example, FIG. 9 is a top view showing the rack of the inverted part, and FIG. 10 is the above-mentioned 8th example. FIG. 11 is a top view showing an example of a conveyor used for conveying a workpiece, and 121';<1 is its normal 71+i view. 1... Main body 2... Spindle drive unit 3... Spindle 4... Guide bar 5... Tooling unit 6... Standoff opening side device 7... Thread gauge 8... Work setting device 1. '-1'9...Lifter W...Work 80...Casing 81...Team 81]...Elastic member 82 Grasping capital 820...Support part 822, 823...Finger part 824
．． 825...Lever 83...Opening/closing mechanism 831...
・Operation member 832...Engagement member 835...Drive device 84・Arm moving mechanism 841...Drive device 8
42... Drive shaft 85... Reversing part 851... Sleeve 852... Pinion 853--Y Tsuk 854...
・String 855...Cam 857...Key 858...Stopper Applicant Hitachi Seiki Co., Ltd. Agent Patent Attorney Ken Aihara Figure 10, 9m

Claims (2)

[Claims] (1) Loading and reversing the workpiece (piece to be inspected),
A device for setting a workpiece for thread measurement by clamping, handling, etc., which includes (a) an arm made of an itrJ-shaped body, a gripping part provided at the tip of the arm to grip the workpiece, and opening and closing of the gripping part. (b) Upper MI2 gripping section, comprising: a driving opening/closing mechanism; an arm moving mechanism that reciprocates the arm in the axial direction; and an inversion section that rotates the arm to reverse the gripped workpiece; (b) Upper MI2 gripping section A support part is fixed to the tip of the arm, and two finger parts are arranged oppositely in parallel on the support part so as to be openable and closable, and two fingers are provided on the support part, corresponding to each of the finger parts. (c) The opening/closing mechanism allows the operating member to slide freely on the arm. and the tip of the operating member is engaged with the other end of each lever so that the lever rotates in the axial direction of the member, and Move the operating member axially to the base end of the arm! (d) The arm is provided with an elastic member that biases the operating member toward the proximal end of the arm. (2) The reversing part has a cam follower protruding from an appropriate position on the outer periphery of the arm, and is slidably engaged with the cam follower on the J circumference of the sleeve 1 in the axial direction, so that when the arm moves in the distal direction, An interlock mechanism is provided with a groove for disengagement, and prevents the arm from reversing when it moves toward the distal end, and enables reversing when the arm returns toward the proximal end.
12. The workpiece setting device for thread measurement according to the above item 11, characterized in that the device comprises: