Gear hobbing machine bearing device

Abstract

The utility model discloses a gear hobbing machine bearing device which comprises a bearing table, an expansion fixing mechanism and a clamping limiting mechanism, the expansion fixing mechanism is installed on the bearing table and comprises a follow-up gear, a follow-up rotating disc is fixedly installed on the follow-up gear, a plurality of follow-up sliding blocks are installed on the follow-up rotating disc in a sliding mode, and the clamping limiting mechanism is installed on the follow-up rotating disc. The follow-up sliding block is provided with an expansion clamping arm, a clamping limiting mechanism is installed on the bearing table, an expansion positioning shaft is fixedly installed on the bearing table and penetrates through the follow-up gear and the follow-up rotating disc, and a limiting sliding groove matched with the follow-up sliding block is formed in the follow-up rotating disc. According to the bearing device of the gear hobbing machine, due to the arrangement of corresponding mechanisms, the bearing device can adapt to gears with more inner diameters, the gears with different inner diameters can be better clamped and fixed, meanwhile, the displacement probability of the gears in the machining process is reduced, the influence on the machining precision of the gear hobbing machine is reduced, and the service life of the gear hobbing machine is prolonged. And the influence on the yield of the gear hobbing machine is also reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of a gear hobbing machine supporting device, and in particular relates to a gear hobbing machine supporting device. Background Art

[0002] Gear hobbing machines are the most widely used gear processing machines. They can cut spur and helical cylindrical gears, as well as worm gears and sprockets. They use hobs to process spur, helical and herringbone cylindrical gears and worm gears according to the generating method. When using special hobs, this type of machine can also process workpieces with various special tooth shapes such as splines and sprockets.

[0003] At present, when a gear hobbing machine is used, the gear needs to be fixed on a supporting device. However, the gear hobbing machine not only processes gears of the same specification, but also the inner diameters of the gears are not the same. The existing supporting device cannot adapt to gears of various inner diameters and cannot achieve the clamping and fixing of gears with different inner diameters. Even if it is fixed, it cannot ensure that the gear will not move during the processing process. This not only affects the processing accuracy of the gear hobbing machine, but also affects the yield of the gear hobbing machine.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a gear hobbing machine supporting device.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a gear hobbing machine supporting device, which can solve the problem that the existing supporting device cannot adapt to the clamping of various inner diameter gears, which not only affects the processing accuracy of the gear hobbing machine, but also affects the yield of the gear hobbing machine.

[0007] In order to achieve the above-mentioned object, a specific embodiment of the present invention provides a gear hobbing machine supporting device, comprising: a supporting platform, an expansion fixing mechanism and a clamping limiting mechanism;

[0008] An expansion fixing mechanism is installed on the support platform, and the expansion fixing mechanism includes a follower gear, a follower turntable is fixedly installed on the follower gear, a plurality of follower sliders are slidably installed on the follower turntable, and an expansion clamping arm is provided on the follower slider;

[0009] A clamping and limiting mechanism is installed on the supporting platform.

[0010] In one or more embodiments of the present invention, an expansion positioning shaft is fixedly mounted on the support platform, which can fix the position of the follower gear and the follower turntable, so that the follower gear will not fall off the support platform when rotating, and the follower gear can better mesh with the engaging gear;

[0011] The expansion positioning shaft is arranged to pass through the follower gear and the follower turntable, thereby improving the stability of the follower gear and reducing the probability of the follower gear and the follower turntable tilting.

[0012] In one or more embodiments of the present invention, a limiting sliding groove matching the follower slider is carved on the follower turntable, which facilitates the sliding of the follower slider. The follower slider can be driven to slide by rotating the follower turntable, so that the position of the follower slider can be controlled.

[0013] An expansion friction pad is installed on the expansion clamp arm, which can enhance the friction between the expansion clamp arm and the inner wall of the gear, improve the fixing effect of the expansion clamp arm on the gear, and reduce the probability of the gear coming off.

[0014] In one or more embodiments of the present invention, an expansion shaft is installed between the follower slider and the expansion clamp arm, which can support the expansion clamp arm and can be driven by the expansion clamp arm to rotate when the expansion clamp arm is in contact with the inner wall of the gear. At the same time, it can be limited by the expansion fixed shell, so that the follower slider can be displaced when the follower turntable rotates;

[0015] The expansion shaft is arranged to pass through the follower slider and the expansion clamping arm, which facilitates the rotation of the expansion shaft, improves the stability of the expansion shaft, and reduces the probability of the expansion shaft being separated.

[0016] In one or more embodiments of the present invention, an expansion fixed housing is provided on the outer side of the follower gear, which can limit the expansion shaft through a limit balance groove, and through the cooperation with the follower turntable, the follower slider can be driven to rotate during the rotation of the follower turntable;

[0017] The expansion fixed shell is provided with a limiting balance groove that matches the expansion shaft, thereby improving the balance of the expansion shaft and limiting the expansion shaft, thereby improving the stability of the expansion shaft.

[0018] In one or more embodiments of the present invention, the engagement limiting mechanism includes an engagement gear, which can drive the rotation of the follower gear by the shaking of the user, thereby driving the rotation of the follower turntable;

[0019] The engaging gear is meshed with the follower gear, which facilitates the engagement gear to drive the follower gear to rotate.

[0020] In one or more embodiments of the present invention, a receiving groove matching the engaging gear is formed on the expansion fixing housing, so that the engaging gear and the follower gear can mesh with each other, and the engaging gear can drive the follower gear to rotate by rotating;

[0021] The supporting platform is fixedly provided with an engaging shaft, which can fix the position of the engaging gear and make the rotation of the engaging gear more controllable.

[0022] In one or more embodiments of the present invention, the engaging shaft passes through the engaging gear, and the engaging gear is fixedly mounted with an engaging ratchet, which can be fixed by a limiting buckle to stop rotating, thereby stopping the rotation of the engaging gear.

[0023] In one or more embodiments of the present invention, a limiting buckle is provided on one side of the engaging ratchet, which can engage the engaging ratchet to stop the rotation of the follower gear, thereby fixing the position of the expansion clamp arm;

[0024] The support platform is fixedly provided with a limiting rotating shaft, which can support the limiting buckle and provide a corresponding axis for the rotation of the limiting buckle.

[0025] In one or more embodiments of the present invention, a rotation spring is installed between the limiting shaft and the limiting buckle, which can make the limiting shaft always fit the limiting buckle and make the limiting shaft fit the limiting buckle at any time.

[0026] Compared with the prior art, the support device of a gear hobbing machine of the utility model can adapt to gears with more inner diameters through the setting of corresponding mechanisms, better clamp and fix gears with different inner diameters, and at the same time reduce the probability of gear displacement during the processing, reduce the impact on the processing accuracy of the gear hobbing machine, and also reduce the impact on the yield of the gear hobbing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some of the embodiments described in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts.

[0028] Figure 1 A three-dimensional diagram of an expansion and fixing mechanism in one embodiment of the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0030] Figure 3 for Figure 1 Schematic diagram of the structure at B in the middle;

[0031] Figure 4 It is a three-dimensional diagram of an embodiment of the present invention.

[0032] Description of main reference numerals:

[0033] 1-supporting platform, 2-expansion fixing mechanism, 201-follow-up gear, 202-follow-up turntable, 203-follow-up slider, 204-expansion clamping arm, 205-expansion positioning shaft, 206-expansion friction pad, 207-expansion rotating shaft, 208-expansion fixing shell, 3-engaging limiting mechanism, 301-engaging gear, 302-engaging rotating shaft, 303-engaging ratchet, 304-limiting buckle, 305-limiting rotating shaft, 306-return spring. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0035] like Figures 1 to 4 As shown, a gear hobbing machine supporting device in one embodiment of the present invention includes: a supporting platform 1, an expansion and fixing mechanism 2 and a clamping and limiting mechanism 3.

[0036] like Figures 1 to 2 As shown, an expansion and fixing mechanism 2 is installed on the supporting platform 1. The expansion and fixing mechanism 2 includes a follower gear 201, which can be driven to rotate, thereby driving the rotation of the follower turntable 202.

[0037] Among them, a follower turntable 202 is fixedly installed on the follower gear 201, which can drive the displacement of the follower slider 203 by cooperating with the expansion fixing shell 208, so that the multiple expansion clamping arms 204 can expand or contract, so that the multiple expansion clamping arms 204 can fix the gear.

[0038] In addition, a plurality of follow-up sliders 203 are slidably installed on the follow-up turntable 202, which can slide on the follow-up turntable 202 and drive the displacement of the expansion clamping arm 204. The follow-up slider 203 is provided with an expansion clamping arm 204, which can fix the inner wall of the gear by expansion.

[0039] like Figures 1 to 3As shown, an expansion positioning shaft 205 is fixedly installed on the support platform 1, which can fix the position of the follower gear 201 and the follower turntable 202, so that the follower gear 201 will not fall off the support platform 1 when rotating, and the follower gear 201 can better engage with the engaging gear 301.

[0040] The expansion positioning shaft 205 is arranged to pass through the follower gear 201 and the follower turntable 202 , thereby improving the stability of the follower gear 201 and reducing the probability of the follower gear 201 and the follower turntable 202 being tilted.

[0041] like Figures 1 to 2 As shown, a limiting sliding groove matching the follower slider 203 is carved on the follower turntable 202, which facilitates the sliding of the follower slider 203. The follower slider 203 can be driven to slide by rotating the follower turntable 202, so that the position of the follower slider 203 can be controlled.

[0042] In addition, an expansion friction pad 206 is installed on the expansion clamp arm 204, which can enhance the friction between the expansion clamp arm 204 and the inner wall of the gear, improve the fixing effect of the expansion clamp arm 204 on the gear, and reduce the probability of the gear disengaging.

[0043] like Figures 1 to 2 As shown, an expansion shaft 207 is installed between the follower slider 203 and the expansion clamp arm 204, which can support the expansion clamp arm 204 and can be driven by the expansion clamp arm 204 to rotate when the expansion clamp arm 204 is in contact with the inner wall of the gear. At the same time, it can be limited by the expansion fixed shell 208, so that the follower slider 203 can be driven to move when the follower turntable 202 rotates.

[0044] In addition, the expansion shaft 207 is arranged to pass through the follower slider 203 and the expansion clamping arm 204, which facilitates the rotation of the expansion shaft 207, improves the stability of the expansion shaft 207, and reduces the probability of the expansion shaft 207 being separated.

[0045] like Figures 1 to 4 As shown, an expansion fixed shell 208 is provided on the outside of the follower gear 201, which can limit the expansion shaft 207 through the limiting balance groove. Through the joint action with the follower turntable 202, the follower slider 203 can be driven to rotate during the rotation of the follower turntable 202.

[0046] Among them, a limiting balance groove matching the expansion shaft 207 is carved on the expansion fixed shell 208, which improves the balance of the expansion shaft 207 and can limit the expansion shaft 207, thereby improving the stability of the expansion shaft 207.

[0047] like Figures 1 to 3As shown, a locking limiting mechanism 3 is installed on the supporting platform 1. The locking limiting mechanism 3 includes a locking gear 301, which can drive the rotation of the follower gear 201 through the shaking of the user, and further drive the rotation of the follower turntable 202.

[0048] The engaging gear 301 is meshed with the follower gear 201 , which facilitates the engagement gear 301 to drive the follower gear 201 to rotate.

[0049] like Figures 1 to 3 As shown, a receiving groove matching the engaging gear 301 is bored on the expansion fixing housing 208, so that the engaging gear 301 and the follower gear 201 can mesh with each other, and the engaging gear 301 can drive the follower gear 201 to rotate by rotating.

[0050] In addition, a locking shaft 302 is fixedly mounted on the supporting platform 1 , which can fix the position of the locking gear 301 , making the rotation of the locking gear 301 more controllable.

[0051] like Figures 1 to 4 As shown, the engaging shaft 302 passes through the engaging gear 301 , and the engaging ratchet 303 is fixedly mounted on the engaging gear 301 , which can be fixed by the limiting buckle 304 to stop the rotation, thereby stopping the rotation of the engaging gear 301 .

[0052] like Figures 1 to 3 As shown, a limiting buckle 304 is provided on one side of the engaging ratchet 303 , which can engage the engaging ratchet 303 to stop the rotation of the follower gear 201 and thereby fix the position of the expansion clamping arm 204 .

[0053] In addition, a limiting rotating shaft 305 is fixedly installed on the supporting platform 1, which can support the limiting buckle 304 and provide a corresponding axis for the rotation of the limiting buckle 304.

[0054] like Figures 1 to 4 As shown, a return spring 306 is installed between the limiting shaft 305 and the limiting buckle 304, which can make the limiting shaft 305 always fit the limiting buckle 304, so that the limiting shaft 305 can be engaged with the limiting buckle 304 at any time.

[0055] During specific use, when the gear needs to be fixed, the engaging gear 301 is rotated to make the follower gear 201 rotate synchronously, so that the follower turntable 202 can cooperate with the expansion fixing shell 208, drive the sliding of the follower slider 203, and adjust the expansion clamping arm 204 to a suitable position on the inner wall of the gear. After the gear is placed, the engaging gear 301 is rotated again to expand multiple expansion clamping arms 204 and move to a position away from the center of the follower turntable 202, so that the expansion clamping arm 204 fixes the inner wall of the gear, and at the same time, the limiting buckle 304 can engage the engaging ratchet 303, making the gear fixing effect more ideal.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0057] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A gear hobbing machine supporting device, characterized in that: include: supporting platform; An expansion fixing mechanism is installed on the supporting platform, the expansion fixing mechanism includes a follower gear, a follower turntable is fixedly installed on the follower gear, a plurality of follower sliders are slidably installed on the follower turntable, an expansion clamping arm is provided on the follower slider, an expansion shaft is installed between the follower slider and the expansion clamping arm, the expansion shaft passes through the follower slider and the expansion clamping arm, an expansion fixing shell is provided on the outer side of the follower gear, and a limit balance groove matching the expansion shaft is cut on the expansion fixing shell; An engaging limiting mechanism is installed on the supporting platform, and the engaging limiting mechanism includes an engaging gear, which is meshed with the follower gear. A receiving groove matching the engaging gear is opened on the expansion fixed shell. An engaging shaft is fixedly installed on the supporting platform, and the engaging shaft passes through the engaging gear. An engaging ratchet is fixedly installed on the engaging gear, and a limiting buckle is provided on one side of the engaging ratchet. A limiting shaft is fixedly installed on the supporting platform, and a return spring is installed between the limiting shaft and the limiting buckle.

2. A gear hobbing machine supporting device according to claim 1, characterized in that: An expansion positioning shaft is fixedly installed on the supporting platform, and the expansion positioning shaft passes through the follower gear and the follower turntable.

3. A gear hobbing machine supporting device according to claim 2, characterized in that: A limiting sliding groove matching the following sliding block is bored on the following turntable, and an expansion friction pad is installed on the expansion clamping arm.

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