JP2002346853A - Apparatus for temporary assembly of winding drum - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve productivity of a winding drum by automating temporary assembly of the same. SOLUTION: An apparatus, which is used to temporarily assemble three members in predetermined positions when a winding drum composed of flange members A, C arranged at both sides of a shell member B that becomes a winding axle is manufactured, is provided with a gripping mechanism 10 for gripping the flange member A, a supporting mechanism 20 for supporting the shell member B so as to be concentric with the flange member A gripped by the gripping mechanism 10, and a presser mechanism 30 for pressing the flange member C so as to be concentric with the shell member B supported by the supporting mechanism 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary assembling apparatus used for manufacturing a winding drum provided in various deck machines such as a winch.

[0002]

2. Description of the Related Art A winding drum provided on various winches belonging to a deck machine generally has flange members projecting in a flange shape on both sides of a shell member serving as a winding shaft. To manufacture such a winding drum, first, draw a scribe line in the center of the side surface of both flange members and match the end surface of the shell member, arrange three members according to the scribe line, and At several places, the joints are spot-welded and temporarily assembled. In addition,
The end surface of the flange member is chamfered before provisional assembly. After completion of the temporary assembly, the winding drum is set in a dedicated welding device, and the members are welded all around.

[0003]

Conventionally, most of the temporary assembling work was manually performed, so that the work could not be performed quickly and productivity was low. Further, since the worker also chamfers the flange member using a grinder, the processing accuracy varies depending on the skill of the worker, and uniform processing is difficult.

[0004] The present invention has been made in view of the above circumstances, and has as its object to improve productivity by automating temporary assembly of a winding drum.

[0005]

As a means for solving the above-mentioned problems, a temporary assembling device for a winding drum having the following structure is employed. In other words, the temporary assembling device for the winding drum according to claim 1 of the present invention manufactures a winding drum having flange members projecting in a flange shape on both sides of a shell member serving as a winding shaft.
An apparatus for temporarily assembling the shell member and both flange members at a predetermined position, wherein a gripping means for gripping one flange member and the center of the one flange member gripped by the gripping means coincide with each other. It is characterized by comprising supporting means for supporting the shell member, and pressing means for pressing the other flange member while aligning the center with the shell member supported by the supporting means.

According to a second aspect of the present invention, there is provided a winding drum temporary assembling apparatus according to the first aspect, wherein the gripping means extends a center hole formed in the one flange member outward. It is characterized in that it is gripped by gripping claws.

According to a third aspect of the present invention, there is provided the winding drum temporary assembling apparatus according to the first or second aspect, wherein the supporting means is provided on the one of the flange members gripped by the gripping means. The shell member is moved toward and away from the shell member.

According to a fourth aspect of the present invention, there is provided a temporary assembling apparatus for a winding drum according to the first, second, or third aspect, wherein the pressing means includes a center hole formed in the other flange member. And a pressing portion having a center aligned with the shell member is inserted and pressed.

According to a fifth aspect of the present invention, there is provided the winding drum temporary assembling apparatus according to the first, second, third or fourth aspect, wherein the end faces of the respective flange members of the winding drum which have been temporarily assembled are completed. It is characterized by having a chamfering device for chamfering.

The temporary assembling device for a winding drum according to a sixth aspect of the present invention is the temporary assembling device for a winding drum according to the first, second, third, fourth or fifth aspect. It is characterized by being rotatable.

According to a seventh aspect of the present invention, the temporary assembling apparatus for a winding drum according to the sixth aspect, wherein the chamfering device comprises:
It is characterized by being supported so as to be able to approach and separate from the winding drum and to be movable in the central axis direction of the winding drum.

According to an eighth aspect of the present invention, in the temporary winding apparatus of the seventh aspect, the chamfering device comprises:
It is characterized by being urged in a direction approaching the winding drum.

In the present invention, it is possible to easily keep the centers of the three members constituting the winding drum coincident, and if the temporary welding is performed while maintaining this state, the temporary assembly work can be performed smoothly. Become like

Further, in the present invention, it is possible to chamfer the end surface of the flange member with the roll cylinder having been temporarily assembled remaining mounted thereon.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a temporary assembling apparatus for a winding drum according to the present invention will be described with reference to FIGS. The temporary assembling device of the present embodiment includes a holding mechanism (holding means) 10 for holding a disk-shaped flange member (one flange member) A constituting a winding drum on a common base 1, A supporting mechanism (supporting means) 20 for supporting the cylindrical shell member B having the same center as that of the flange member A, and a flange member A (the other flange member) having the same shape as the flange member A, and the flange member A and the shell There is provided a pressing mechanism (pressing means) 30 for pressing the member B while aligning the centers thereof.

The gripping mechanism 10 includes a gripper 11 having a plurality (three in this embodiment) of grippers that expand and contract in the radial direction.
These three gripping claws are inserted into a center hole a formed in the flange member A, and are synchronously enlarged outward so that the flange member A can be accurately gripped at the center portion. The gripper 11 is supported rotatably about a virtual central axis in the horizontal direction.
Is driven to rotate in an arbitrary direction by a driving unit 13 connected thereto.

A guide rail 2 is installed on the base 1 in parallel with an imaginary center line passing through the center of the gripper 11, and the support mechanism 20 moves along the guide rail 2 to move the gripper 10. On the other hand, it comes to approach and separate.

The support mechanism 20 is provided with a support 21 on which the shell member B is placed. The support 21 can be moved up and down in the vertical direction by the drive unit 23 combined with the screw rod 22, and the height of the placed shell member B can be freely changed.

The support table 21 is provided with two rotatable rolls 24, 24 spaced apart in parallel, and the shell member B is placed on the rolls 24, 24 to support the support table 21. 21 and is rotatable in the circumferential direction while maintaining a fixed position. The rolls 24, 24 are parallel to and equidistant from the virtual center line of the gripper 11, and this relationship does not change even when the support base 21 is moved up and down. The center can coincide with the center of the flange member A.

The pressing mechanism 30 includes a driving unit 31 that advances and retreats in the direction of the virtual center line of the holding unit 11, and a frustoconical pressing unit 32 attached to the driving unit 31. A general pneumatic cylinder that expands and contracts using air pressure is used for the drive unit 31.
The structure is such that the cylinder 34 moves forward and backward. Pressing part 3
2 is attached to the base end of the cylinder 34 so that its center coincides with the virtual center line of the gripper 11, and the cylinder 34
Is pushed forward into the center hole c formed in the flange member C (it does not penetrate because the diameter is larger than the center hole c), and the center of the flange member C is moved to the flange member A.
The flange member C is pressed against the shell member B while being aligned with the center. Further, the pressing portion 32 is rotatable around a virtual center line with respect to the cylinder 32, and can be rotated together with the shell member B in a state where the flange member C is pressed against the shell member B.

On the base 1, in addition to the above-described mechanisms, a chamfering device 40 for chamfering the flange members A and C individually.
Is installed. The chamfering device 40 includes two grinder portions 41 for cutting edges between the side surfaces / end surfaces of the flange members A and C, and each grinder portion 41 is formed by each flange member A.
(Or C) can be freely moved toward and away from, and the gripper 11
Virtual center line direction (this coincides with the center axis of the winding drum)
And an intermediate base 42 movably supported on the base.

The grinder section 41 includes two grinders 43, 43 which are in contact with two edges E adjacent to each other across the end face of the flange member A (or C), and a drive section 44 for rotating these at high speed. ing. Further, on the outside of the grinders 43, 43, projections 45, 45 protruding on both sides of the flange member A (or C) are provided, and each projection 45 is freely contacted with the side surface of the flange member A (or C). Is provided with a ball bearing touch 46 that rotates.

The intermediate platform 42 is movable along the guide rail 3 provided in the same direction as the guide rail 2. A lower carriage 48 movably along a guide rail 47 disposed in the same direction as the guide rail 3 on the intermediate platform 42, and a guide disposed orthogonal to the guide rail 47 on the lower carriage 48. An upper trolley 50 that is movable along the rail 49 is installed, and the grinder 41 is mounted on the upper trolley 50. Grinder unit 41
It is possible to freely change the arrangement in the horizontal plane by moving the lower carriage 48 and the upper carriage 50.

The grinder 41 is urged in a direction approaching the winding drum by a compression spring 51 provided between the grinder 41 and the upper carriage 50. Further, the grinder portion 41 not only freely approaches and separates from the winding drum along the guide rail 4 but also freely changes the distance from the winding drum by operating a feed handle 52 provided on the upper carriage 50. It is possible.

A temporary assembling operation of the winding drum performed by the temporary assembling apparatus having the above-described structure will be described. First, a scribe line corresponding to the end surface of the shell member B is drawn in the center of one side surface of the flange member A, and the side surface on which the scribe line is drawn is supported by the support mechanism 2.
The gripping mechanism 10 grips the flange member A toward the zero side.

Next, the shell member B is placed on the support base 21 of the support mechanism 20, and the support mechanism 20 is moved closer to the gripping mechanism 10 and the support base 21 is moved up and down so that one end face of the shell member B is flanged. Align with the scribe line of member A.

Next, the flange member C is lifted by a chain block or the like, and is arranged along the other end surface of the shell member B on the support base 21. The pressing portion 32 is advanced while maintaining this state, It is pushed into the center hole c of the member C. The flange member C is pressed against the other end face of the shell member B while moving so that the center is aligned with the center of the flange member A following the conical shape of the pressing portion 32.
As a result, the flange member A, the shell member B, and the flange member C are all arranged so that their centers are aligned.

While maintaining this state in which all the centers are coincident with each other, temporary welding is performed at several places between the flange member A and the shell member B and between the shell member B and the flange member C. It is desirable that the places for temporary welding are spaced at equal intervals in the circumferential direction as much as possible.

When the temporary welding is completed, one of the grinder portions 4
1 is brought into contact with the end surface of the flange member A, and the other grinder portion 41 is brought into contact with the end surface of the flange member B. Subsequently, when the three members that have been temporarily welded and integrated are slowly rotated once around the virtual center line while driving the respective grinder portions 41, the edges of the flange members A and C are cut and chamfered. .

In the chamfering device 40, the end face may fluctuate due to distortion or warpage generated in the flange member A (or C), but such fluctuation is absorbed by the grinder 41 changing its arrangement freely in a horizontal plane. Is done.
The grinder 41 itself is pressed against the edges of the flange members A and C with a constant force by being urged by the compression spring 51, so that an appropriate chamfer is performed.

When the chamfering is completed, the pressing portion 32 is retracted and the restraint of the flange member A by the grip portion 11 is released. Subsequently, when the support mechanism 20 is separated from the gripping mechanism 10, the temporarily assembled winding cylinder moves while being placed on the support base 21 and separates from the gripping mechanism 10, so that it is lifted using a chain block or the like. Then, the process proceeds to the main welding process.

According to the winding drum temporary assembling apparatus configured as described above, the temporary assembling and temporary welding of the three members constituting the winding drum can be performed accurately and in a short time. Assembly work can be performed smoothly.

In the present embodiment, the winding drum after the temporary assembly is moved to another location to perform the main welding. However, it is also possible to perform the final welding with the temporary assembling device being mounted. There is no problem at all.

[0034]

As described above, according to the winding drum temporary assembling apparatus according to the present invention, it is possible to easily keep the centers of the three members constituting the winding drum coincident with each other. If temporary welding is performed while maintaining this state, temporary assembly work can be performed smoothly. Thereby, the temporary assembling of the winding drum can be automated to improve the productivity.

Further, according to the winding drum temporary assembling apparatus according to the present invention, the end surface of the flange member can be chamfered while the temporarily assembled winding drum is mounted, and conventionally, it is performed manually. It is possible to save the trouble of chamfering and improve the processing accuracy.

[Brief description of the drawings]

FIG. 1 is a plan view showing the entire structure of a temporary assembling device for a winding drum according to the present invention.

FIG. 2 is a side view showing the entire structure of the temporary assembling device for the winding drum.

FIG. 3 is a side sectional view showing a structure of a pressing mechanism.

FIG. 4 is a side view showing the structure of the chamfering device.

FIG. 5 is a side view showing a main part of the chamfering device.

FIG. 6 is a plan view showing an arrangement of a chamfering device and a flange member.

[Explanation of symbols]

 Reference Signs List 1 base 10 holding mechanism (holding means) 20 supporting mechanism (supporting means) 30 pressing mechanism (pressing means) 40 chamfering device A flange member (one flange member) B shell member C flange member (other flange member)

Claims (8)

[Claims] An apparatus for temporarily assembling said shell member and both flange members at predetermined positions in manufacturing a winding drum having flange members projecting in a flange shape on both sides of a shell member serving as a winding shaft. Gripping means for gripping one of the flange members; supporting means for supporting the shell member by aligning the center with the one flange member gripped by the gripping means; and supporting the shell member. And a pressing means for pressing the other flange member while aligning the center with the shell member. 2. The temporary assembling apparatus according to claim 1, wherein the gripping means grips a center hole formed in the one flange member with a plurality of gripping claws extending outward. 3. The winding drum temporary assembly apparatus according to claim 1, wherein the supporting means moves the shell member toward and away from the one flange member gripped by the gripping means. . 4. The pressing means according to claim 1, wherein said pressing means inserts and presses a pressing portion having a center aligned with said shell member into a center hole formed in said other flange member. Or a temporary assembling device for the winding drum according to 3. 5. The apparatus for temporarily assembling a winding drum according to claim 1, further comprising a chamfering device for chamfering an end face of each flange member of the winding cylinder after the temporary assembling. 6. The winding cylinder having been temporarily assembled is rotatable around a central axis.
A temporary assembling device for a winding drum according to claim 4 or 5. 7. The temporary winding cylinder according to claim 6, wherein the chamfering device is supported so as to be able to approach and separate from the winding cylinder and to be movable in a direction of a center axis of the winding cylinder. Pair device. 8. The temporary assembling device for a winding drum according to claim 7, wherein the chamfering device is urged in a direction approaching the winding drum.