JPH0632264Y2 - Check device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a chuck device for holding a plurality of works arranged on a belt or the like for carrying and the like.

PRIOR ART A typical prior art chuck device 1 is shown in FIGS. The chuck device 1 includes a pair of chuck claws 3 for holding the work 2 and a main body 4. The chuck claws 3 are angularly displaceable around an axis fixed to the main body 4, and are configured to be angularly displaceable in mutually opposite directions.

For example, the works 2 are arranged on the belt conveyor at predetermined intervals P and moved, and the chuck device 1 moves the chuck claws 3
The workpiece 2 is clamped by angularly displacing the workpiece. With the chuck device 1 holding the work 2, the work device 2 is moved to a desired position by moving the chuck device 1 or mounted on another device.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above-described chuck device 1, since one chuck device 1 is configured to hold one work piece 2,
When it is desired to hold a plurality of works 2 at the same time, a plurality of chuck devices 1 are required. However, since the driving means for angularly driving the chuck claws 3 is individually provided in each chuck device 1, a slight time lag occurs when the plurality of works 2 are clamped. Therefore, the plurality of works 2 cannot be pinched accurately at the same time, and when the plurality of works 2 are conveyed in an interlocked manner, a malfunction may occur.

Further, since the chuck claw 3 is configured to be angularly displaced about the axis, the size of the work 2 that can be held by the chuck device 1 is limited. Further, since a drive means is provided for each chucking device 1, the chucking device 1 becomes large in size, and it is necessary to arrange the works 2 at a certain interval or more in order to hold the works 2. Therefore, the alignment interval P becomes relatively large, and the works arranged at the narrow intervals P cannot be sandwiched. For example, when the works are arranged on the belt conveyor, the work speed is reduced, which is convenient. It was inferior in sex.

Furthermore, by simply driving a plurality of sets of chuck claws by a common driving means, it is necessary to replace the large group of chuck claws each time the size of the work to be clamped is changed. In addition, it is difficult to clamp a work of different size for each chuck claw because the clamping force becomes uneven.

An object of the present invention is to solve the above technical problems, and to provide a chuck device which is capable of reliably and simultaneously gripping a plurality of works arranged at narrow intervals with a simple structure and improving convenience. Is.

Means for Solving the Problems The present invention is directed to a plurality of pairs of chuck claws 1 that are sequentially arranged.
7, 18; 19, 20 and perforations 32a, 3 formed in the claws 17, 19 on one side along the arrangement direction of the chuck claws 17, 18; 19, 20 of each pair.
The first shaft 15a that is screwed into the 4a and loosely inserts the loose insertion holes 33a and 35a formed in the claws 18 and 20 on the other side.
And the loose claws formed on the claws 17, 19 on one side while being screwed into the holes 33b, 35b formed on the claws 18, 20 on the other side of the pair of chuck claws 17, 18; It includes a second shaft 15b that loosely inserts the holes 32b and 34b, and a drive unit 13 that rotationally drives the first and second shafts 15a and 15b, and the first and second shafts 15a and 15b are driven. Then, the one side claws 17 and 19 and the other side claws 18 and 20
The chuck device is characterized in that and are displaced in mutually opposite directions.

Action According to the present invention, a plurality of pairs of chuck claws 17, 18; 19, 20 arranged sequentially are divided into claws 17, 19 on one side and claws 18, 20 on the other side along the arrangement direction. Is
First driven to rotate by drive means 13 such as a motor
The displacement is driven by the shaft 15a and the second shaft 15b.

That is, the perforations 32a, 34 are formed in the claws 17, 19 on one side.
a and the loose insertion holes 32b and 34b are formed in advance, and similarly the perforations 33b and 35b and the loose insertion holes 32a and 35a are formed in the claws 18 and 20 on the other side. The first shaft 15a
Connects the perforation 32a of the one side claw 17, the loose insertion hole 33a of the other side claw 18, the perforation 34a of the one side claw 19, and the loose insertion hole 35a of the other side claw 20 in this order. . Similarly, the second shaft 15b communicates the loose insertion hole 32b, the perforation 33b, the loose insertion hole 34b, and the perforation 35b in this order.

When the first and second shafts 15a and 15b are rotationally driven, the pair of chuck claws 17 and 18 are displaced toward and away from each other. Similarly, the chuck claws 19 and 20 are displaced toward and away from each other.

In this way, the common driving means 13 can drive a plurality of pairs of chuck claws 17, 18; 19, 20 and simultaneously clamp a plurality of works. In addition, the distance between the pair of chuck claws 17, 18;
It can be easily changed by simply changing the screwing position on b.
It is not necessary to replace 18; 19 and 20, and it is possible to hold works of different sizes for each pair with a uniform holding force.

Embodiment FIG. 1, FIG. 2 and FIG. 3 are a perspective view, a plan view and a side view of a chuck device 10 according to an embodiment of the present invention.
The check device 10 includes a rotary actuator 13 driven by air pressure or electric power, and gears 16a, 16a.
b, shafts 15a and 15b, and chuck claws 17 to 20. A gear 16a is coaxially fixed to the output shaft 15a of the rotary actuator 13. A gear 16b meshes with the gear 16a, and the gear 16b is rotatable about a shaft 15b in conjunction with the gear 16a. The shafts 15a and 15b are loosely inserted into loose insertion holes 31a and 31b provided in the base 12, respectively. The base 12 is fixed to a fixed base 21 with bolts or the like.

A drive unit is configured to include the rotary actuator 13, gears 16a and 16b, and shafts 15a and 15b.

A base 22 is fixed to a fixed base 21 below the base 12 in FIG. The shafts 15a, 1 are provided between the bases 12, 22.
Guide shafts 14a and 14b are fixed in parallel with 5b, respectively. Loose insertion holes 36a to 39 for loosely inserting the guide shafts 14a and 14b are provided in chuck claws 17 to 20 described later.
a; 36b to 39b are provided respectively, and the chuck claws 17 to 20 are guided and moved in the longitudinal direction of the guide shafts 14a and 14b.

The lower parts of the shafts 15a and 15b below the base 12 in FIG. 1 are external threads. Further, the chuck claws 17, 19 which are common chuck claws on one side are provided with perforations 32a, 34a, and these perforations 32a, 34a are internal threads. Also, the chuck claw 18, which is the chuck claw on the other side,
20 is provided with loose insertion holes 33a and 35a, the shaft 15a described above is fitted in the holes 32a and 34a, and is loosely inserted into the loose insertion holes 33a and 35a.
The lower end of the shaft 15a is loosely inserted into the loose insertion hole 40a of the base 22.

Also, the chuck claws 17 and 19 are provided with loose insertion holes 32b and 34b in relation to the shaft 15b, and the chuck claws 18 and 20 are provided with perforations 33b and 35b. Perforation 33b,
35b is an internal thread, and the shaft 15b has a hole 33
b, 35b are engaged with each other, and the loose insertion holes 32b,
34b is loosely inserted. The lower end of the shaft 15b is loosely inserted into the loose insertion hole 40b of the base 22.

The chuck claws 17 to 20 are provided with rectangular holding parts 40 to 43 for holding the works 60, 61.
Therefore, for example, in the chuck claw 20, as shown in FIG. 4, three loose insertion holes 39a, 39b, 35a are provided.
And one perforation 35b are provided, and further the sandwiching portion 43 is provided.
Is provided.

In such a chuck device 10, when the output shaft 15a of the rotary actuator 13 is angularly displaced in the direction indicated by the arrow 50, the chuck claws 17 to 20 cause the guide claws 17 to 20 to move.
Guided by a and 14b, they are displaced in the directions indicated by arrows 51 to 54, respectively. Accordingly, the work indicated by the phantom line 60, for example, the work arranged and conveyed on the belt is held by the holding parts 40 and 41, and the work indicated by the imaginary line 61 is held by the holding parts 42 and 43. .

The sandwiched works 60 and 61 are moved together with the chuck device 10 by a driving means (not shown), and then the rotary actuator 13 is moved in the direction opposite to the arrow 50 to the shaft 1.
5a is angularly displaced, whereby the workpieces 60 and 61 are removed from the chuck claws 17 to 20. Thus, the chuck claws 17 to 20 are moved by the rotary actuator 13 which is the same drive source. In addition, since the chuck claws 17 and 19 on one side and the chuck claws 18 and 20 on the other side are driven in mutually opposite directions, the two works 60 and 61 are clamped at the same time. It becomes possible. Further, since the interval Q between the works 60 and 61 can be set to the width of the minimum holding portions 41 and 42, the arrangement interval Q between the works 60 and 61 can be reduced. Therefore, a plurality of works 60, 61
The workpieces 60 and 61 can be densely arranged.

Also, in the check device 10, the check claws 17, 1
8 and the chuck claws 19 and 20 can be changed in accordance with the size of the workpieces 60 and 61 to be held.
Therefore, even when the workpieces 60 and 61 have different sizes, they can be clamped with a uniform clamping force.
It is not necessary to replace the chuck claws 17, 18; 19, 20 for changing the dimensions of the works 60, 61.

Further, in the present embodiment, although the two works 60, 61 are configured to be sandwiched at the same time, the bases 12, 2
It is also possible to make a large number of works at the same time by taking a large interval of 2 and adding a pair of chuck claws.

Effect of the Invention As described above, according to the present invention, it is possible to easily clamp a plurality of works at the same time by one chuck device. Further, the arrangement interval of the works can be selected to a desired interval, and the width of the chuck claw can be changed more easily according to the size of the works. Therefore, the convenience of the chuck device and the productivity of the process using the chuck device can be significantly improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a chuck device 10 according to an embodiment of the present invention, FIG. 2 is a plan view of the chuck device 10, FIG. 3 is a side view of the chuck device 10, and FIG. 4 is a chuck claw of the chuck device 10. 20 is a plan view, FIG. 5 is a plan view of the conventional chuck device 1, and FIG. 6 is a side view of the chuck device 1. 10 ... Check device, 12, 22 ... Base, 13 ...
Rotary actuators, 14a, 14b ... Guide shaft,
15a, 15b ... Shaft, 16a, 16b ... Gear, 17
〜20 …… Chuck nail, 60,61 …… Workpiece.

Claims (1)

[Scope of utility model registration request] 1. A plurality of pairs of chuck claws 1 which are sequentially arranged.
7, 18; 19, 20 and perforations 32a, 3 formed in the claws 17, 19 on one side along the arrangement direction of the chuck claws 17, 18; 19, 20 of each pair.
The first shaft 15a that is screwed into the 4a and loosely inserts the loose insertion holes 33a and 35a formed in the claws 18 and 20 on the other side.
And the loose claws formed on the claws 17, 19 on one side while being screwed into the holes 33b, 35b formed on the claws 18, 20 on the other side of the pair of chuck claws 17, 18; It includes a second shaft 15b that loosely inserts the holes 32b and 34b, and a drive unit 13 that rotationally drives the first and second shafts 15a and 15b, and the first and second shafts 15a and 15b are driven. Then, the one side claws 17 and 19 and the other side claws 18 and 20
A check device in which and are displaced in opposite directions.