JPS61209818A - Single shaft burnishing unit - Google Patents

Abstract

PURPOSE:To securely machine a tooth surface over a wide area by bringing the tooth surface of a machining gear into pressure contact and meshed with the middle area and both side areas in the direction of face width of a tooth surface of a gear to be machined in both parallel and inclined conditions. CONSTITUTION:A machining gear 1 is mounted on a supporting shaft 22 and inclined by theta deg. by rotating a cam 34, while a gear 2 to be machined is mounted on a supporting shaft 12 and meshed with the machining gear 1. Then, by operating a pressure cylinder 15 to press the gear 2 to be machined against the machining gear 1 at a certain pressing force, while rotating them at a certain number of revolution by means of a driving motor 25, to remove burrs on the end area of the tooth surface of the gear 2 to be machined. Under this condition, the supporting shaft 22 is continuously swung from a horizontal condition to an inclined condition to the other side, via a rotation connecting member 32 by means of the rotation of the cam 34, to remove burrs on the tooth surface in a middle area and the other end area. Thus, the tooth surface of the gear to be machined can be securely machined over a wide area with a single machining gear.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention involves pressurizing the tooth profile of the work gear by meshing a burnish gear, which is a processing gear, and a work gear, which is a gear to be processed, under pressure. This invention relates to a single-axis burnishing device.

[Conventional technology]

Normally, burrs and burrs that significantly impair the performance of gears occur mostly on the ridges of tooth surfaces.

Therefore, in order to remove such tooth surface burrs, burrs, etc. from gears, a burnishing device is installed at the front stage of an automatic gear sorter that detects tooth surface burrs, burrs, etc., and selects the gears that are detected. Often.

Conventionally, this burnishing device has three
The work gear +72, which is a gear to be machined, is sandwiched between the vanish gears 1a, 1b, and Ic and pressurized.

By actively applying the meshing between 1C and the work gear 2 mainly to the ridgeline part of the tooth surface of the work gear 2, it is possible to remove ridges, burrs, etc. in that part.

And each Banitshugi ty1a, lb, lc are,
If the tooth profile and tooth trace of the work gear 2 are unmodified, the design and manufacture of the vanish gears 1a, 1b, and Ic are relatively in-cylinder, but since it is very rare that they are unmodified, special tooth profiles and tooth traces for machining are required. It is formed on the tooth line.

The vanish gear 1a, as shown in FIG. 5(a),
The teeth have a large helix angle, and when they mesh with the work gear 2, they come into pressure contact with 8 points A in the end area in the tooth width direction of the tooth surface 2a of the work gear 2, thereby removing burrs, burrs, etc. .

As shown in FIG. 5(b), the vanish gear 1b is
The teeth are configured to have a small helix angle, and by meshing with the work gear 2, the teeth come into pressure contact with points C and D at the end areas in the tooth width direction of the tooth surface 2a of the work gear v2, and pressure processing is performed.

The vanish gear 1C, as shown in FIG. 5(C),
The pressure angle of the teeth is configured to be larger than the pressure angle of the teeth of the work gear 2, and by meshing with the work gear 2, it comes into pressure contact with points E and F of the tooth tip of the work gear 2, and pressure machining of the tooth tip is performed. .

As described above, the work gear 2 was pressurized using the three burnishing gears ty1a, lb, and lc formed in a special tooth profile and tooth slit.

[Problem that the invention seeks to solve]

The conventional burnishing device described above requires three burnish gears with a special tooth profile and one tooth, and these burnish gears are expensive because they are hardened and coated to form a considerably tall melon. Moreover, the mechanism for supporting each vanish gear and applying pressure to the work gear was complicated.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a uniaxial burnishing device that is capable of pressurizing a conical gear to be applied using a single machined gear. .

[Means for solving problems]

The present invention provides a burnishing device that pressurizes the tooth profile of the gear 2 to be machined by meshing the teeth 11i1 and the gear 2 to be machined under pressure. a first support means 11 for rotatably supporting the other gear 1; and a second support means 21 which is tiltable at a predetermined angle and engages the other gear 1 in a parallel and inclined state with respect to the one gear 2, and the first and second support means 11.21 provided on at least one of both gears 1.
A pressurizing means 14 is provided for interlocking the two parts in a press-contact state. .

(Function) The present invention is capable of meshing one gear of a machining gear and a to-be-machined gear with the other gear in a parallel and inclined state, and the intermediate region and both ends of the tooth surface of the to-be-machined gear in the tooth width direction. The tooth surface of the machined gear is pressed into contact with the area and engaged.

〔Example〕

Next, the configuration of an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, 11 is a work gear support means as a first support means, and this support means 11 is connected to a work gear 172.
is rotatably supported in a horizontal state by a support shaft 12, and this support shaft 12 is vertically installed on a cart 13 that is movable in the direction of applying pressure to the vanish gear 1 (in the direction of the arrow in FIG. 1). There is.

Further, on the rear end side of this truck 13 (on the left side in FIG. 1), there is provided a pressurizing means 14 for pressurizing the work gear 1ν2 against the vanish gear 1 with a predetermined pressurizing force. It is composed of a pressurizing cylinder 15 operated by hydraulic pressure, and the tip of an operating shaft 15a of this pressurizing cylinder 15 is connected and fixed to the cart 13.

Reference numeral 21 denotes a vanish gear support means as a second support means. In this support means 21, a support shaft 22 on which the Vanish S gear 1 is mounted on the upper end is rotatably supported by a shaft support 23. A driven pulley 24 is fixed to the lower end, and a belt 2 is connected between the driven pulley 24 and a drive pulley 26 fixed to a drive shaft 25a of a drive motor 25.
7 is passed over, and the burnish gear 1 is rotationally driven by the drive motor 25 via the support shaft 22 and the like.

Further, the shaft support 23 is provided with a tilting means 31 for tilting the support shaft 22. This tilting means 31 connects the lower end of the shaft support body 23 to a fixed body 33 whose position is fixed by a rotational connection member 32, and the upper end of the support shaft 22 The work gear support means 11 is capable of swinging and tilting in the direction of the support shaft 12 and in the opposite direction, and furthermore, the support shaft 22 is tilted and controlled at the upper side of the shaft support 23 where the rotation connecting member 32 is provided. The cam 34 etc. for
4 allows the support shaft 22 to be continuously tilted via the shaft support 23.

Next, a processing operation by the burnishing device configured as described above will be explained.

The vanish gear V1 is attached to the vanish gear support shaft 22, and the support shaft 22 is connected to the cam 3 as shown in FIG.
4, the work gear p2 is tilted by θ° with respect to the perpendicular line in the direction of the work gear support shaft 13, and the work gear p2 is mounted on the work gear support shaft 12 and meshed with the burnishing gear ty1.

Next, the pressurizing cylinder 15 is operated to pressurize the work gear 2 with a predetermined pressing force against the burnishing gear 1?1 in the inclined state, and the drive motor 25 is driven to rotate at a predetermined number of rotations, so that the burnishing gear Iy l tj -3 and the work gear 2 meshing with this vanish gear 1 are rotated.

Due to this rotation, the avA circumference of the tooth surface 2a of the work gear 2, shown in FIG. 3, engages with the south surface of the banishing gear V1 in a press-contact state. Then, a of the tooth surface 2a of this work gear 2
If there are burrs, burrs, etc. within the range,
By pressurizing the burnish gear 1, burrs, burrs, etc. on the screen 2a of the work gear I72 are removed.

Next, as shown in FIG. 2(b), the vanish gear 1
With the work gear V2 engaged and rotating, the vanish gear support @22 is continuously swung parallel to the work gear support shaft 13 about the rotary coupling member 32 by the rotation of the cam 34, and this state is Also, work gear 2 is shifted to the horizontal state with respect to vanish gear 1.
is pressurized with a predetermined pressure by the pressurizing cylinder 15.

In this meshing state, the tooth surface of the banishing gear I71 meshes with the b range of the tooth surface 2a of the work gear 2 as shown in FIG. 3, and in the b range of the tooth surface 2a of the work gear v2,
Processing to remove burrs, burrs, etc. is performed.

Next, as shown in FIG. 2 (C), Banitshugi v1
With the work gear 2 meshing and rotating, the cam 34 rotates the banishing gear support shaft 22 so that it continuously tilts and swings in the opposite direction to the work gear support shaft 13 by -θ° with respect to the perpendicular line. Then, the work gear 2 is pressurized to the inclined vanish gear 1 with a predetermined pressure by the pressurizing cylinder 15.

In this meshing state, the tooth surface of the seven star gear 1 meshes with the C range of the tooth surface 2a of the work gear 2, as shown in FIG.
In the C range of the tooth surface 2a of this work gear 2, the ridge,
Processing to remove burrs etc. is performed.

As mentioned above, vanish gear 1 is set for work gear 2.
a of the tooth surface 2a of the work gear 112 by continuously tilting them and engaging them under pressure.

b, cv! The surrounding area will be processed.

If the crowning of the tooth surface 2a of the work gear 2 is large, burrs, burrs, etc. on the tooth surface 2a can be removed by changing the inclination angle θ and -θ of the vanish gear support shaft 22. However, normally, if the crowning depth is about 0.02 to 0.03/20 (tooth width), no abnormal meshing will occur.

Further, in the above embodiment, the burnishing gear 1 is inclined and meshed with the work gear 2, but the burnishing gear 1 is attached to the spindle 12, and the work gear 2 is attached to the spindle 22 in an IA manner. Meshing 2 by tilting work gear 2 to vanish gear 1! You may also perform machining on work gear I/2.

〔Effect of the invention〕

According to the present invention, one of the processing gear and the workpiece gear is meshed with the other gear in a parallel and inclined state,
Since the tooth surface of the machined gear is pressed into contact with the intermediate region and both end regions in the tooth width direction of the tooth surface of the machined gear and meshed with each other, the teeth of the machined gear are A wide range of surfaces can be reliably machined, only one expensive machining gear is required, and the structure of the device itself can be simplified.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing an embodiment of the apparatus of the present invention, Fig. 2 is an explanatory diagram showing its machining operation, Fig. 3 is a partial perspective view showing the tooth surface of the gear to be machined, and Fig. 4 1 is a schematic diagram of a conventional apparatus, and FIG. 5 is an explanatory diagram showing its processing operation. 1. Processing gear, 2. Processing gear, 11.. First support means, 14.. Pressure means, 21.. Second support means.

Claims (1)

[Claims] (1) In a burnishing device that pressurizes the tooth profile of the to-be-processed gear by meshing the to-be-processed gear and the to-be-worked gear under pressure, a first support rotatably supports one of the gears. a means for rotatably supporting the other gear, the axis of rotation thereof being parallel to and tiltable at a predetermined angle with respect to the axis of rotation of the one gear; a second support means that engages in a parallel and inclined state; and a pressurizing means that is provided on at least one of the first and second support means and engages both gears in a press-contact state. Single axis burnishing device.