JPH0214787A - Bolt selecting device, bolt measuring instrument and stock device - Google Patents

Abstract

PURPOSE:To screen and collect many kinds of bolts and to improve the efficiency of screening and collecting operations by disposing a supplying device, measuring instrument and stock device around a transporting device and constituting the measuring instrument of the instrument which can measure the diameter and length of the bolts. CONSTITUTION:The supplying device 2 which has a bolt B supplying section 10, the transporting device 1 which transports the bolts B received from the supplying device 2, the measuring instrument 3 which measures the diameter and length of the bolts B, and the stock device 4 which screens and collects the bolts in accordance with the results of the measurement with the instrument 3 are provided. A revolving shaft 7a which is freely rotatable around the perpendicular axis is provided to the transporting device 1 and plural transporting arms 9 having chucks 9a for gripping the bolts are radially mounted, at equal intervals, to the front end 8a of the shaft 7a. The devices 2-4 are disposed around the transporting device 1 at the same interval as the mounting intervals of the arms 9. The revolving shaft 9a is intermittently rotated by a driving source so that the chucks 9a of the respective arms 9 face these devices successively.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a bolt sorting device for sorting and collecting bolts of different diameters and lengths by type, and a bolt measuring device and stocking device used therein. .

(Prior art) As a conventional bolt sorting device, for example, Japanese Patent Laid-Open No. 81-27
The one described in Japanese Patent No. 1074 is known.

In this method, a conveyance path is constructed of two plates set upright with a gap in which the bolt shaft is loosely inserted, and the head of the bolt is placed along the conveyance path in the middle of the electric transmission path. An inverted-shaped sorting plate that allows the bolt to move forward in an inclined state by hooking the side part is provided, and a long sorting window is formed in the upper part of the side plate of the sorting plate in the direction of the conveyance path. If the shaft of the bolt carried into the sorting window is longer than the height of the sorting window, it will be supported by the side plate and advanced to the end of the conveyance path in an inclined state; if it is short, the bolt will be Bolts are sorted by allowing the shaft to lose support from the side plate and tilt toward the window, detaching from the sorting plate and falling.

(Problem to be Solved by the Invention) However, in the above-mentioned prior art, it is not possible to sort bolts by taking their lengths and diameters into account, and it is not possible to sort bolts with different lengths and diameters as sorting elements. Sorting could not be performed if there were a mixture of materials. In such a case, it is conceivable to separately equip the conveyance path with a measuring device that measures the diameter of the bolt, but it is very difficult to measure the diameter of the bolt that advances on the conveyance path, and even if it is possible to measure the diameter of the bolt. However, with the above structure, it was impossible to efficiently sort and accumulate the total number of bolts.

The present invention provides a bolt sorting device that makes it possible to sort out many types of bolts with different lengths and diameters, and quickly and efficiently sorts and accumulate bolts, and a total of bolts used therein. The purpose is to provide a J device as well as a stock device.

(Means for solving the problem) In order to achieve the above object, the invention of claim 1 provides a bolt sorting device for sorting and accumulating a plurality of types of bolts having different diameters and lengths, comprising: A supply device that includes a bolt supply section, a conveyance device that transports the bolts received from the supply device, a measuring device that measures the diameter and length of the bolt, and the bolts are sorted and accumulated based on the measurement results of the measuring device. A stock device is provided, the transfer device is provided with a rotating shaft that can freely rotate around a vertical axis, and a plurality of transfer arms each having a chuck at the tip for gripping a bolt are attached to the rotating shaft at equal radial intervals, The supply device and the total 1 are placed around the device.
The IFI device and the stock device are arranged at the same interval as the mounting interval of the transfer arms, and the rotating shaft is intermittently rotated by a drive source so that the chucks of the respective transfer arms are successively exposed to these devices. It is characterized by In this case, as in claim 2, it is preferable that the chuck is provided to be movable forward and backward with respect to the transfer arm, and that the arm is provided with a drive source for moving the chuck forward and backward.

Moreover, in the invention of claim 3, the diameter and length of the bolt held by the chuck of the conveyance device are measured! It is a measuring device that measures the diameter of the bolt by sandwiching the bolt held by the chuck from the diametrical direction in a housing facing the chuck, and a diameter gauge 4 x 1 unit for measuring the diameter of the bolt by sandwiching the bolt held by the chuck from the diametrical direction. The present invention is characterized in that a total of 4-1 units having a total length of Jl are provided which are sandwiched from above and below and have a total length of bolts of Jl.

Moreover, these inventions are as claimed in claim 4 (the diameter meter 'Apl
It is more effective to arrange a plurality of units at a total of 111 locations in the vertical direction of the bolt held by the chuck.

In addition, in the invention of claim 5, there is provided a stocking device for accumulating supplied bolts in a predetermined stocker according to the type of bolts, the stocking device having a rotating shaft that is freely rotatable about a vertical axis,
The rotating shaft is provided with a rotating arm having a chuck attached to the tip for gripping the bolt, and a plurality of stockers are provided with gaps in the circumferential direction directly below the rotation locus of the chuck.

(Function) Each chuck provided in the plurality of transfer arms faces a bolt supply device, a flPJ device, and a stock device, respectively, and the chuck facing the supply device receives and receives bolts from the supply section of the supply device. While the meter is in use, the measuring device measures the diameter and length of the bolt that has been delivered first and faces the meter a1 device, and the stock device measures the diameter and length of the bolt that is delivered first and faces the meter a1 device.
The bolts that have been subjected to FJ and are facing the stock device are accumulated in a predetermined stocker based on the total 11-1 results of the measuring device.

When these series of sorting operations are completed, each chuck is rotated by a predetermined angle together with the transfer arm by driving the rotating shaft, and the chuck that was facing the feeding device is moved to the measuring device, and the chuck that was facing the measuring device is moved to the measuring device. The chuck facing the stocking device finishes conveying the bolts and returns to the standby position or the supplying device, where it performs the same sorting operation as described above. By repeating the above operations while rotating the rotating shaft intermittently, it is possible to efficiently sort out many types of bolts. Furthermore, in this case, if the chuck is configured as in claim 2, the chuck will not interfere with the supply device, measuring device, or stock device when the arm rotates, and the bolt can be quickly brought into contact with these devices. I can do it.

In the measuring device, by configuring the measuring device as in claim 3, the bolt can be measured while the bolt is held in the chuck without being delivered to the measuring device, thereby improving work efficiency. can be achieved. Further, in this case, if the measuring device is configured as in claim 4, the bolts to be supplied include stepped bolts having a large diameter portion and a small diameter portion in the shaft portion, and the selection elements are even more diverse. However, it can be easily measured.

In the stock device, the rotating arm that grips the bolt is moved directly above a predetermined stocker by driving the rotating shaft, and the bolt is released and dropped into the stocker, so that the weight is reduced. Bolts can be accumulated quickly and efficiently compared to a stocker that moves physical objects, and by arranging the stockers in the circumferential direction, a large number of stockers can be prepared for each type of bolt in a space-efficient manner. can do.

(Example) A case will be described in which the present invention is implemented in a sorting device that sorts out many types of bolts B used around an engine.

The bolts B treated here include bolts with different diameters and lengths, and as shown in FIG. It also includes special shapes consisting of.

Referring to FIGS. 1 and 2, reference numeral 1 indicates a conveying device for bolts B, and around the conveying device 1, a supplying device 2 for bolts B,
A measuring device 3, a stock device 4, and a defective product stocker 5 are arranged to constitute a sorting device.

The conveyance device 1 includes a motor 7 as a drive source provided on a machine stand 6.
radially through the arm mounting body 8 to the vertical rotation axis 7a of the
Each chuck 9a is provided at the tip of the transport arm 9.9.9.9 by intermittently rotating the rotating shaft 7a by 90 degrees.
are arranged to face the supply device 2, measuring device 3, stock device 4, and defective product stocker 5, which are arranged at 90-degree intervals around the conveying device 1, respectively, and in the co-feeding device 2, the bolts B are Perform the delivery work by gripping with the chuck 9a,
In the total 11 device 3, a total #l PJ work is performed to measure the diameter and length of the bolt B held by the chuck 9a, and in the stock device 4, after the stock device 4 has received the bolt B. Based on the measured values of the ap+ device 3, the bolts B are sorted and accumulated. On the other hand, the meter/l1lj device 3
The bolt B determined to be a defective product is not delivered to the stocking device 4 but is transported to the placement part of the defective product stocker 5 and dropped into the defective product stocker 5. and,
When these series of operations are completed, the rotating shaft 7a is intermittently rotated by 90 degrees, and the chuck 9 facing the feeding device 2 is
a to the JIlj device 3, the chuck 9a that was facing the measuring device 3 to the stocking device 4, and the chuck 9a that was facing the stocking device 4 to the defective product stocker 5, and repeat the same operation as above. That's what I do.

Further, each chuck 9a is connected to a cylinder 9 serving as a driving source attached to the arm body 9b of the transfer arm 9.
c, the arm 9 is movable forward and backward in the longitudinal direction of the arm 9, and when the vertical rotating wheel 7a is rotating, each chuck 9a is moved backward so as not to interfere with each of the devices, and after the rotation has stopped, it is moved forward and connected to each device. I try to make them present.

The supply device 2 includes a parts feeder (not shown) into which various bolts B are mixed and fed, and a slit-shaped conveyance path 10 into which the shaft portion Ba of the bolt B fed from the parts feeder is loosely inserted.
The chuck 9a of the transfer arm 9 is inserted into the lower part of the tip of the supply part 10, and the neck part of the bolt B supplied to the tip of the supply part 10 is fixed to the chuck 9a. and then the chuck 9a
The worker leaves work and removes the bolt B from the supply section 10.

As shown in FIGS. 3 and 4, the measuring device 3 includes a bolt B held by the chuck 9a in the housing 11.
A pair of upper and lower diameter measuring units 12.12 that measure the diameters of two points of the bolt B by sandwiching the upper end part Ba1 and the intermediate part Ba2 from the diametrical direction, and a pair of upper and lower diameter measuring units 12.12 that measure the diameter of the bolt B at two locations by sandwiching the bolt B from the upper and lower sides. It is configured to accommodate a length measuring unit 13 for measuring.

To explain this in detail, each diameter measurement unit 12 has a pair of left and right lateral movement units that are slidably supported by guide rails 12b that extend on both upper and lower ends of a vertical support member 12a that is installed horizontally on the upper part of the housing 11. Plate 12c.

12c is biased, and measurement winds 12d and 1 sandwich the bolt B between the transverse plates 12c and 12c from the diametrical direction, respectively.
2d, and the binion 12 pivotally supported on the vertical support member L2a.
Rack 12r meshed with e so as to sandwich it from above and below.
, 12f and housing on one rack 12r! Connect a fixed cylinder 12g to the side wall 11a of
By the cylinder 12g, one of the 11111 claws 12d
At the same time, the other measuring wind 12d is also pinched and operated via the pinion 12e, and at the same time, the movement amount of the two needles 1 claw 12d and +2d is transferred to the housing 11 via the binion 12e. The information is transmitted to an encoder 12h fixed to the rear wall 11b, and the encoder 12h detects the distance between the two needles 411 and the pawls 12d and 112d as the rotation angle of the pinion 12e, and the diameter of the bolt B is measured in total.
I'll do it.

On the other hand, the length measuring unit 13 includes a reference seat 13a and a temporary seat 1 that sandwich the bolt B held by the chuck 9a from above and below.
3b, and the reference seat 13a is lowered to a predetermined reference position via a cylinder 13c vertically installed on the upper wall of the housing 11 to press the upper end of the bolt. Lifting with fixed 3b! ! 121
3d, a pair of guide bars 13g inserted into the support member 13e by a cylinder 13'' vertically installed on the lower surface of the horizontal support member 13e installed horizontally at the middle lower part of the housing 11;
13g, and then tighten the corresponding seat 13b with bolt B.
The raised position of the corresponding seat 13b at this time is detected by the encoder 13j that is linked to the pinion H1 that meshes with the rack 13h carved on one guide bar 13g, and the length of the bolt B is determined by the total length K11l. do.

As shown in FIGS. 1 and 2, the stock device 4 includes a rotary arm 16 having a chuck 16a attached to its tip for gripping a bolt B attached to a vertical shaft [5a] of a motor 15 provided on a machine base 14. , a plurality of stockers 17 corresponding to the types of bolts B are disposed in the circumferential direction directly below the rotation locus of the chuck 16a, and a plurality of stockers 17 corresponding to the types of bolts B are disposed in the circumferential direction directly below the rotation locus of the chuck 16a. B, the total f
A predetermined stocker 17 corresponding to the type of revolt B is selected by rotating the vertical shaft 15a based on the detected value of the ltl+ device 3.
It is moved upward and dropped into the stocker 17 to be accumulated. These stockers 17 include a plurality of hoppers 17a arranged at equal intervals in the circumferential direction of a horizontal round table 18 provided at the top of the machine stand 14, and two stages provided at the middle and lower parts of the machine stand 14. It is composed of a plurality of stocker bodies 17b provided above and below the horizontal mounting plate 19.19 so as to be offset in the circumferential direction, and the conduit portion L7c formed at the lower part of the hopper 17a is made to face the corresponding stocker body 17b. The bolts B dropped from the chuck 16a to the hopper 17a pass through the conduit portion 170 and are collected in a predetermined stocker body 17b.

According to the above configuration, each chuck 9a of the conveying device 1 faces the supply device 2, the measuring device 3, the stock device 4, and the defective product stocker 5, respectively, and in the supply device 2, the bolts B The delivery of the measurement device 3
In the stock device 4, the length of the bolt B and the diameters of the upper end portion Bat and the intermediate portion Ba2 are measured while being held by the chuck 9a.
The bolts B delivered to a are accumulated in a predetermined stocker 1.7 by the rotation of the chuck 18a, and the defective product stocker 5
In this case, the defective bolts B that have not been delivered to the stock device 4 are dropped in parallel.

In this way, a series of operations are repeated every time the vertical rotating shaft 7a of the conveying device 1 is rotated by 90 degrees, and various types of bolts B are efficiently sorted and accumulated.

(Effect of the invention) As described above, according to the invention of claim 1, the feeding device, the measuring device, and the stocking device are arranged around the conveying device, and the measuring device can measure the diameter and length of the bolt. By constructing the chuck, it is possible to sort and accumulate many types of bolts, and to improve the efficiency of the sorting and accumulation work. According to the invention of claim 2, by providing the chuck so that it can move forward and backward, Further efficiency can be achieved.

Further, according to the invention of claim 3, it is possible to measure the bolt while it is held in the chuck, thereby improving the efficiency of measurement work, and according to the invention of claim 4, the bolt can be measured while being held in the chuck. It is also possible to measure many types of bolts.

Furthermore, according to the invention of claim 5, by operating the relatively lightweight rotating arm to perform the bolt sorting and accumulation work, it is possible to perform quick operation and improve the efficiency of the sorting and accumulation work. Moreover, by arranging the stockers in the circumferential direction, space efficiency can be improved.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the bolt sorting device that gave birth to the present invention.
FIG. 2 is a side view thereof, FIG. 3 is a front view of the bolt measuring device, FIG. 4 is a cut side view thereof, and FIG. 5 is an enlarged front view of the bolts to be sorted. 1... Conveyance device 2... Supply device 3...
・Measuring device 4...Stock device 7...
Motor 7a...Vertical rotation axis 9...Transport arm 9a...Chuck 9C...Cylinder 11...Housing 13...Length measurement unit 16...Rotating arm 17...Stocker 10 ...Supply section 12...Diameter measurement unit 15a...Vertical axis lea...Chuck B...Bolt Patent application Honda Motor Co., Ltd.

Claims (1)

[Claims] 1. A bolt sorting device for sorting and collecting bolts of different diameters and lengths by type, comprising a feeding device including a bolt feeding section, and a bolt received from the feeding device. It is equipped with a conveying device for conveying, a measuring device for measuring the diameter and length of the bolt, and a stocking device for sorting and accumulating the bolts based on the measurement results of the measuring device, and the conveying device is rotatable around a vertical axis. A rotation shaft is provided, and a plurality of transfer arms each having a chuck at the tip for gripping a bolt are attached to the rotation shaft at equal radial intervals, and the supply device, the measurement device, and the stock device are installed around the transfer device. A bolt sorting device characterized in that the bolts are arranged at the same intervals as the mounting intervals of the transfer arms, and the rotating shaft is intermittently rotated by a drive source so that the chucks of the respective transfer arms are successively exposed to the device. 2. The bolt sorting device according to claim 1, wherein the chuck is provided to be movable forward and backward with respect to the transfer arm, and the arm is provided with a drive source for moving the chuck forward and backward. 3. A measuring device for measuring the diameter and length of a bolt gripped by a chuck of a conveying device, which measures the bolt diameter by sandwiching the bolt gripped by the chuck from the diametrical direction in a housing facing the chuck. 1. A bolt measuring device for use in a bolt sorting device, comprising: a diameter measuring unit for measuring the length of the bolt gripped by the chuck; and a length measuring unit for measuring the length of the bolt by sandwiching the bolt gripped by the chuck from above and below. 4. Bolt measurement used in the bolt sorting device according to claim 3, wherein a plurality of the diameter measuring units are arranged so as to measure a plurality of locations in the vertical direction of the bolt held by the chuck. Device. 5. A stocking device that collects supplied bolts in a predetermined stocker according to the type of bolt, which is equipped with a rotating shaft that can freely rotate around a vertical axis, and a chuck that grips the bolt at the tip of the rotating shaft. 1. A bolt stocking device for use in a bolt sorting device, characterized in that a rotating arm is provided, and a plurality of stockers are provided with gaps in the circumferential direction directly below the rotation locus of the chuck.