CN211465068U

CN211465068U - Gear shaft hobbing clamp

Info

Publication number: CN211465068U
Application number: CN201922294712.XU
Authority: CN
Inventors: 黄金辉; 许仲秋; 肖海金
Original assignee: Hengshan Gear Co ltd
Current assignee: Hengshan Gear Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-09-11
Anticipated expiration: 2029-12-19

Abstract

Gear shaft hobbing clamp, relate to frock clamp technical field, it includes the base, fixed mounting has the lower top that is used for pushing into the gear shaft bottom and carries out the location on the base, it carries out the last top of fixing a position to be provided with on the lathe that is located the base top and is used for pushing into the gear shaft top, install the supporting shoe on the base, install splint on the supporting shoe, the splint left end is connected with the supporting shoe, two right-hand member end fixedly connected with's right holding strip, be provided with the clearance that is used for holding the gear shaft axle body between two right holding strips, the right-hand member of two right holding strips corresponds respectively and has seted up a screw hole, wear to be equipped with fastening bolt in two screw holes, fastening bolt's one end is connected with adjusting nut, through rotating adjusting. The utility model discloses positioning accuracy is high, can form the tight effect of firm location clamp to the gear shaft, avoids the axis body to take place the rotation in the course of working or rock, improves processingquality.

Description

Gear shaft hobbing clamp

Technical Field

The utility model belongs to the technical field of frock clamp technique and specifically relates to indicate a gear shaft hobbing clamp.

Background

The gear shaft is as a structure of axle and gear integral type, when the teeth of a cogwheel of processing gear, needs fix a position the clamping with the whole gear shaft, then carries out the gear hobbing in the lathe. The existing clamping mode is to clamp and position the two ends of the gear shaft, the positioning precision and the firmness degree of the clamping mode are not ideal enough, the machine tool can drive the clamp to rotate relative to the gear shaft in the machining process, and if the clamping mode is not firm enough, the gear shaft can rotate to a certain degree, so that the machining quality is influenced.

For example, the gear hobbing clamp disclosed in chinese patent CN207479770 clamps the gear shaft by positioning the upper and lower ends, but because the shaft body of the gear shaft usually has a certain length, the shaft body is still easy to shake when rotating during the machining process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gear shaft hobbing clamp, its positioning accuracy is high, can form the tight effect of firm location clamp to the gear shaft, avoids the shaft to take place the rotation or rock in the course of working, improves processingquality.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a gear shaft hobbing clamp, includes the base, fixed mounting has the lower top that is used for pushing into the gear shaft bottom and carries out the location on the base, is located be provided with on the lathe of base top and be used for pushing into the gear shaft top and carry out the last top of location, install the supporting shoe on the base, install splint on the supporting shoe, the splint left end is connected with the supporting shoe, right-hand member end fixedly connected with two right holding strips, be provided with the clearance that is used for holding the gear shaft axle body between two right holding strips, the right-hand member of two right holding strips corresponds respectively and has seted up a screw hole, wears to be equipped with fastening bolt in two screw holes, fastening bolt's one end is connected with adjusting nut, through rotating adjusting nut, can make two right holding strips press from both sides tight gear shaft.

Preferably, the splint further comprises two left holding strips, a gap capable of being clamped into the supporting block is arranged between the two left holding strips, and the two left holding strips are connected with the supporting block through threads.

More preferably, the bottom end face of the base is provided with a step hole for matching with a rotary base of a machine tool, the side end face of the base is provided with four positioning notches at annular intervals, and the base is provided with a plurality of threaded holes.

More preferably, the bottom of the supporting block is fixedly connected with a bottom plate, and the bottom plate is in threaded connection with the base.

More preferably, a disc-shaped seat is fixedly connected to the bottom of the lower tip, the disc-shaped seat is in threaded connection with the base, and a cross section is arranged on one side of the disc-shaped seat in the thickness direction of the disc-shaped seat.

The beneficial effects of the utility model reside in that: after the gear shaft is positioned and clamped through the upper tip and the lower tip, the shaft body of the gear shaft is clamped tightly through two right clamping strips of the clamping plate, the positioning precision and the clamping firmness degree of the clamp to the gear shaft can be improved to a great extent, when the machine tool rotating base drives the clamp to rotate, the supporting block, the clamping plate and the base rotate synchronously, the gear shaft is enabled to rotate synchronously, the phenomenon that the gear shaft rotates or rocks is avoided, and finally the machining quality is improved.

Drawings

Fig. 1 is a schematic overall structure diagram in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a splint according to an embodiment;

FIG. 3 is a schematic structural diagram of a base in an embodiment;

FIG. 4 is a schematic structural view of a support block and a base plate in the embodiment;

fig. 5 is a schematic structural view of a disc-shaped seat in the embodiment.

The reference signs are:

1-base 1 a-step hole 1 b-positioning gap

2-gear shaft 3-lower tip 3 a-disk seat

4-upper tip 5-supporting block 5 a-bottom plate

6-clamping plate 6 a-right clamping strip 6 b-threaded hole

6c left holding strip 7a fastening bolt 7b adjusting nut

8-a limiting block.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

It should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-2, the gear shaft hobbing clamp comprises a base 1, a lower center 3 for pushing the bottom end of a gear shaft 2 to be positioned is fixedly installed on the base 1, an upper center 4 for pushing the top end of the gear shaft 2 to be positioned is arranged on a machine tool above the base 1, a supporting block 5 is installed on the base 1, a clamping plate 6 is installed on the supporting block 5, the left end of the clamping plate 6 is connected with the supporting block 5, the right end of the clamping plate is fixedly connected with two right clamping strips 6a, a gap for accommodating the shaft body of the gear shaft 2 is arranged between the two right clamping strips 6a, the right ends of the two right clamping strips 6a are respectively and correspondingly provided with a threaded hole 6b, a fastening bolt 7a penetrates through the two threaded holes 6b, and one end of the fastening bolt 7a, by turning the adjusting nut 7b, the two right gibs 6a can be made to clamp the gear shaft 2 or loosen the gear shaft 2.

The gear shaft hobbing clamp that above-mentioned embodiment provided is when using, fix a position through last top 4 and lower top 3 and press from both sides tightly the back to gear shaft 2, two right holding strip 6a of rethread splint 6 press from both sides the shaft body of gear shaft 2 tightly, can improve this anchor clamps to the firm degree of positioning accuracy and clamping of gear shaft 2 at to a great extent, when lathe rotating base drives this anchor clamps and rotates, supporting shoe 5, splint 6 and base 1 synchronous rotation, and then make gear shaft 2 also keep synchronous rotation, avoid gear shaft 2 to take place the rotation or the phenomenon of rocking, finally improve processingquality.

Preferably, as shown in fig. 2, the clamping plate 6 further includes two left clamping strips 6c, a gap capable of being clamped into the supporting block 5 is formed between the two left clamping strips 6c, the two left clamping strips 6c are in threaded connection with the supporting block 5, specifically, the threaded connection can also be realized in a bolt and nut matching mode, so that when the lower tip 3 part of the clamp needs to be maintained or replaced, one end of the clamping plate 6 can be swung upwards to be lifted by slightly loosening the bolt and the nut, then the lower tip 3 is directly maintained or replaced, after the maintenance or replacement work of the lower tip 3 is completed, the clamping plate 6 can be swung back to return to the initial position and then locked, and the whole clamping plate 6 does not need to be detached in the whole process, thereby providing great convenience. Of course, in order to make the initial position that can smoothly and accurately fall after the splint 6 swings back, can set up a stopper 8 on the supporting shoe 5 for just support on the stopper 8 when the splint 6 swings back to the initial position, thereby ensure that the installation deviation can not appear, and this initial position is preferably the position when splint 6 is in the horizontality.

More preferably, as shown in fig. 3, a stepped hole 1a for matching with a rotary base of a machine tool is opened on a bottom end face of the base 1, four positioning notches 1b are annularly arranged on a side end face of the base 1 at intervals to facilitate clamping and positioning of the clamp on the machine tool, wherein a plurality of threaded holes for matching with the rotary base of the machine tool are opened on the base 1.

More preferably, as shown in fig. 4, a bottom plate 5a is fixedly connected to the bottom of the supporting block 5, and the bottom plate 5a is screwed with the base 1.

In addition, in the present embodiment, as shown in fig. 5, preferably, a disk-shaped seat 3a is fixedly connected to the bottom of the lower center 3, the disk-shaped seat 3a is in threaded connection with the base 1, so that the lower center 3 has good stability and firmness, and one side of the disk-shaped seat 3a is provided with a cross section along the thickness direction thereof, the cross section is arranged so that the disk-shaped seat 3a can reduce a part of the occupied space, thereby providing a sufficient space for the installation position of the supporting block 5, and fully utilizing the size of the space of the clamp base 1.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

In order to make it easier for those skilled in the art to understand the improvement of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and in order to clarify, some other elements have been omitted from this document, those skilled in the art should recognize that these omitted elements may also constitute the content of the present invention.

Claims

1. Gear shaft gear hobbing anchor clamps, including base (1), its characterized in that: the base (1) is fixedly provided with a lower center (3) for jacking the bottom end of the gear shaft (2) for positioning, a machine tool above the base (1) is provided with an upper center (4) for jacking the top end of the gear shaft (2) for positioning, the base (1) is provided with a supporting block (5), the supporting block (5) is provided with a clamping plate (6), the left end of the clamping plate (6) is connected with the supporting block (5), the right end of the clamping plate (6) is fixedly connected with two right clamping strips (6 a), a gap for accommodating the shaft body of the gear shaft (2) is arranged between the two right clamping strips (6 a), the right ends of the two right clamping strips (6 a) are respectively and correspondingly provided with a threaded hole (6 b), a fastening bolt (7 a) penetrates through the two threaded holes (6 b), one end of the fastening bolt (7 a) is connected with an adjusting nut (7 b), by rotating the adjusting nut (7 b), the two right clamping strips (6 a) can clamp the gear shaft (2) or loosen the gear shaft (2).

2. The gear shaft hobbing clamp of claim 1, wherein: the clamping plate (6) further comprises two left clamping strips (6 c), a gap capable of being clamped into the supporting block (5) is formed between the two left clamping strips (6 c), and the two left clamping strips (6 c) are connected with the supporting block (5) through threads.

3. The gear shaft hobbing clamp of claim 2, wherein: the base is characterized in that a step hole (1 a) used for being matched with a machine tool rotating base is formed in the bottom end face of the base (1), four positioning notches (1 b) are formed in the side end face of the base (1) at annular intervals, and a plurality of threaded holes are formed in the base (1).

4. The gear shaft hobbing clamp of claim 3, wherein: the bottom of the supporting block (5) is fixedly connected with a bottom plate (5 a), and the bottom plate (5 a) is in threaded connection with the base (1).

5. The gear shaft hobbing jig according to any one of claims 1 to 4, wherein: the bottom of the lower center (3) is fixedly connected with a disc-shaped seat (3 a), the disc-shaped seat (3 a) is in threaded connection with the base (1), and a cross section is arranged on one side of the disc-shaped seat (3 a) along the thickness direction of the disc-shaped seat.