JPH049467Y2 - - Google Patents

Description

[Detailed description of the invention] a. Field of industrial application The present invention relates to a shaft feeding mechanism, and in particular, when feeding a feeding member in the axial direction, there are two types of mechanisms: feeding while rotating, and stopping axial feeding and only rotating. , concerning novel improvements to be achieved continuously by one mechanism.

b. Prior Art Various configurations have been proposed for this type of shaft feeding mechanism that has been used in the past, but to describe a typical configuration, here we will list the names of documents disclosing the configuration, etc. Although not listed, in the configuration that the applicant used in-house, the mechanism for feeding the feeding member only had the function of feeding the feeding member, and the appearance of the feeding member after being transported was When inspecting the feed member, the feed member is attached to a separate feed member rotating mechanism, and the appearance is inspected using a laser or the like.

c. Problems to be solved by the invention Since the conventional shaft feeding mechanism is configured as described above, it has had the following problems.

(1) When processing a feeding member by transporting it, there are cases where it is not only fed in the axial direction, but also while being rotated, and there are cases where the axial feeding is stopped and the inspection is performed by only rotating on the spot. However, since the feeding mechanisms for each of these operations are separate, continuous operation is not possible and workability is extremely low.

(2) Also, if the exterior laser inspection is performed during shaft feeding due to the above-mentioned inability to perform continuous work,
The work would have to be interrupted, which would have a major impact on maintaining machining accuracy.

The present invention has been made to solve the above-mentioned problems, and in particular, when feeding the feeding member in the axial direction, it is possible to perform an operation of feeding the feeding member while rotating it, or an operation of stopping axial feeding and only rotating it. It is an object of the present invention to provide a shaft feeding mechanism that can be achieved continuously by one mechanism.

d. Means for Solving the Problems The shaft feed mechanism according to the present invention includes a feed transmission gear rotatably provided in a fixed bracket and consisting of an internal gear, and a feed transmission bevel gear that meshes with the internal teeth of the feed transmission gear, respectively. two internal feed transmission gears having a diameter of 100 mm, and two internal feed transmission gears that are driven by the respective feed transmission bevel gears and are connected to the outer periphery of the feed member inserted into the fixed bracket, and for feeding the feed member in the axial direction. a drive roller; a rotation mechanism section rotatably provided within the fixed bracket and rotatably holding the internal feed transmission gear and the drive roller; a rotation transmission gear provided in the rotation mechanism section; a first drive shaft driven by a drive motor and having a first drive gear that meshes with a transmission gear and a second drive gear that meshes with the rotation transmission gear; and a first drive shaft that is driven by a drive motor; a second drive shaft having a first clutch provided between two drive gears, and a third drive gear driven by the drive motor and meshing with the second drive gear;
The second clutch is provided on the second drive shaft and disconnects the driving force of the drive motor from the third drive gear.

e. Effect In the shaft feeding mechanism according to the present invention, the feeding member can be fed in the axial direction by turning off the power to each of the clutches and rotating each drive roller.

Furthermore, when the first clutch is turned off and the second clutch is turned on, in addition to the aforementioned axial direction feed, the rotation transmission gear rotates via the second drive gear, so that each feed transmission gear, each feed transmission bevel gear, and A rotating mechanism section having each drive roller rotates, and the feeding member is fed in the axial direction while rotating.

Further, when the first clutch is turned on and the second clutch is turned off, the feed transmission gear and the rotation transmission gear rotate in the same manner, so each drive roller does not rotate, and the feed member only rotates on the spot.

f. Embodiment Hereinafter, a preferred embodiment of the shaft feeding mechanism according to the present invention will be described in detail with reference to the drawings.

In FIGS. 1 and 2, the reference numeral 1 indicates a fixed bracket having a substantially cylindrical shape as a whole, and a mounting groove 2 on the inlet side 1a of the fixed bracket 1 has a bearing 3 therebetween. A feed transmission gear 4 made of a ring-shaped internal gear is rotatably provided, and a pair of internal feed transmission gears 5 mesh with the internal teeth 4a of the feed transmission gear 4.

These internal feed transmission gears 5 are connected to the inlet side 1
Each internal feed transmission gear 5 is rotatably provided in the fixed bracket 1 via a bearing 7. rotating mechanism section 8
is rotatably provided via a bearing 9,
A feed transmission bevel gear 11 is integrally formed on the inner end side of the rotating shaft 10 of each of these internal feed transmission gears 5.

Furthermore, the feed transmission bevel gear 11 meshes with a bevel gear 13 formed on a pair of drive rollers 12 rotatably provided in the rotation mechanism section 8, and the outer periphery of each drive roller 12 is joined to the feed member 6. ing.

As shown in FIG. 2, each of these drive rollers 12 is arranged at a position facing the feeding member 6 in a direction of 180 degrees, and at a position perpendicular to each of these drive rollers 12. The outer peripheries of a pair of guide rollers 15 rotatably provided in the rotation mechanism section 8 via bearings 14 are joined to the feed member 6 .

Further, one end of the rotation mechanism section 8 protrudes outward at the outlet side 1b of the fixed bracket 1, and a rotation transmission gear 16 is integrally formed therein.

A first drive shaft 20 having a first drive gear 17, a first clutch 18 and a second drive gear 19 is rotatably provided below the fixed bracket 1, and the first drive gear 17 is connected to the feed transmission gear. 4, and the second drive gear 19 meshes with the rotation transmission gear 16. Further, the first clutch 18 is disposed between each of the drive gears 17 and 19, and connects and separates each of the drive gears 17 and 19.

The first drive shaft 20 is driven by receiving a drive force from a drive motor 21 via a first reduction gear 22, and a lower position of the first drive shaft 20 is in mesh with the second drive gear 19. A second drive shaft 24 having a third drive gear 23 is rotatably disposed, and this second drive shaft 24 is driven by receiving the driving force from the drive motor 21 via a second reduction gear 25. . Further, a second clutch 26 is provided on the second drive shaft 24, and the second reduction gear 25 and the third drive gear 23 are brought into contact and separated from each other by the second clutch 26.

The shaft feeding mechanism according to the present invention is constructed as described above, and its operation will be explained below.

First, when feeding the feeding member 6 only in the axial direction,
When the first clutch 18 and the second clutch 26 are turned off and the drive motor 21 is turned on, the first drive shaft 20 rotates via the first reduction gear 22, so the feed is transmitted via the first drive gear 17. The gears rotate.

Since each internal feed transmission gear 5 rotates due to the rotation of this feed transmission gear 4, each drive roller 12 rotates via each feed transmission bevel gear 11 and bevel gear 13, and the feed member 6 is rotated by these drive rollers 12. It is sent in the direction of arrow A (axial direction).

Next, when rotating the feed member 6 and sending it in the axial direction (screw feed), the first clutch 18 is turned off, the second clutch 26 is turned on, and the drive motor 21 is turned on. As described above, the driving force from the feed transmission gear 4,
It is transmitted to each drive roller 12 via the internal feed transmission gear 5 and the like, and the feeding member 6 is fed in the axial direction. At the same time, since the second clutch 26 is in the on state, the driving force of the drive motor 21 is transmitted to the rotation transmission gear 16 via the second reduction gear 25, the third drive gear 23, and the second drive gear 19.
Due to the rotation of the rotation transmission gear 16, the entire rotation mechanism section 8 rotates, and each drive roller 12 also rotates.
By the axial feed rotation of 2 and its own rotation, it is sent out in the axial direction while rotating, and screw feeding is achieved.

Further, when the feed member 6 is not axially fed but only rotated on the spot, when the first clutch 18 is turned on and the second clutch 26 is turned off, the feed transmission gear 4 and the rotation transmission gear 16 are simultaneously activated. Since they rotate at the same time, no rotational driving force is transmitted to the drive roller 12, and the rotation of the rotation mechanism section 8 causes the feeding member 6 to rotate only on the spot without being sent in the axial direction. .

g. Effects of the invention Since the shaft feeding mechanism according to the invention is configured as described above, the following effects can be obtained.

By turning off the first and second clutches, only axial feed is obtained, and by turning the first clutch off and the second clutch on, screw feed is obtained, and by turning the first clutch on. Since only rotational movement is obtained by turning off the second clutch, the above-mentioned three modes of feeding can be achieved by a single shaft feeding mechanism and only by combining the movements of each clutch. Ru.

Furthermore, when the shaft feeding mechanism according to the present invention is applied to a conveying device and the feeding member is fed while being rotated, it is necessary to stop feeding in the axial direction, allow only rotation at that point, and then feed the feeding member while rotating. Visual inspection of parts can be done using laser etc.
Conveyance and inspection operations can be performed continuously without the need to reattach the feed member to another mechanism each time, unlike in the past.

[Brief explanation of drawings]

1 and 2 are for showing the shaft feeding mechanism according to the present invention, with FIG. 1 being an overall configuration diagram including a cross section, and FIG. 2 being a sectional view showing the main part of FIG. 1. 1 is a fixed bracket, 1a is an inlet side, 1b is an outlet side, 4 is a feed transmission gear, 4a is an internal tooth, 5 is an internal feed transmission gear, 6 is a feed member, 8 is a rotation mechanism section,
11 is a feed transmission bevel gear, 12 is a drive roller, 16 is a rotation transmission gear, 17 is a first drive gear,
18 is the first clutch, 19 is the second drive gear, 20
21 is a first drive shaft, 21 is a drive motor, 23 is a third drive gear, 24 is a second drive shaft, and 26 is a second clutch.

Claims (1)

[Scope of utility model registration request] a feed transmission gear 4 which is rotatably provided in the fixed bracket 1 and is made of an internal gear; two internal feed transmission gears 5 which mesh with the internal teeth 4a of the feed transmission gear 4 and each have a feed transmission bevel gear 11; Two drive rollers 12 are connected to the outer periphery of the feed member 6 which is driven by each of the feed transmission bevel gears 11 and inserted into the fixed bracket 1 to feed the feed member 6 in the axial direction; a rotation mechanism section 8 rotatably provided in the bracket 1 for rotatably holding the internal feed transmission gear 5 and the drive roller 12; and the rotation mechanism section 8.
a first drive gear 17 that meshes with the feed transmission gear 4 and a second drive gear 19 that meshes with the rotation transmission gear 16, and is driven by a drive motor 21. 1 drive shaft 2
0, and the first and second on the first drive shaft 20
a first clutch 18 provided between drive gears 17 and 19; and a third drive gear 23 driven by the drive motor 21 and meshed with the second drive gear 19.
a second drive shaft 24 having a
a second clutch 26 disposed above the drive motor 21 for disconnecting the drive force of the drive motor 21 from the third drive gear 23;
The shaft feeding mechanism is characterized in that the feeding member 6 is moved in the axial direction by the rotation transmission gear 16 and the feeding member 6 is rotated via the rotation mechanism section 8 by the rotation transmission gear 16.