CN210388933U

CN210388933U - Nut clamping device

Info

Publication number: CN210388933U
Application number: CN201921157297.7U
Authority: CN
Inventors: 陈卫; 邓锋
Original assignee: Jingzhou Xiangda Machinery Manufacturing Co ltd
Current assignee: Jingzhou Xiangda Machinery Manufacturing Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-04-24
Anticipated expiration: 2029-07-23

Abstract

The utility model relates to the technical field of automobile part processing, in particular to a nut clamping device, which comprises a supporting frame, wherein a base is fixedly arranged on the supporting frame, a plurality of first positioning grooves are uniformly formed in the upper end of the base, a positioning seat is movably arranged in each first positioning groove, a circular groove is formed in the lower end of the base, a rotating assembly is arranged in the circular groove, and the rotating assembly is tightly connected with a transmission mechanism; the nut positioning device is characterized by further comprising a top cover arranged above the base, a hydraulic lifting device is fixedly connected to the upper end of the top cover, second positioning grooves in one-to-one correspondence with the first positioning grooves are formed in the lower end of the top cover, and connecting sleeves used for sleeving the upper ends of the nuts are fixedly arranged in the second positioning grooves. The utility model provides a pair of nut clamping device, through adjusting the top cap height for realize the nut fixed with loosen, through set up rotating assembly at the base lower extreme, be used for realizing the rotation of the same angle of a plurality of nuts, thereby effectively solve the technical problem that current anchor clamps can't rotate a plurality of nuts fast accurately.

Description

Nut clamping device

Technical Field

The utility model relates to an automobile parts processing technology field, concretely relates to nut clamping device.

Background

A nut for car a steering system is because of its special structure, one of the difficult point of automobile parts processing always, current nut anchor clamps have taken the form of fixing joint both ends according to the big shape that nut both ends diameter is big, middle part diameter is little, this machining efficiency who has improved the nut to a certain extent, but in practice, because the processing requirement of the different positions in nut middle part is different, need appropriate swivel nut, and in order to ensure that nut machining precision is unanimous, it is unanimous to guarantee the rotatory angle of different nuts, current nut anchor clamps can only come swivel nut roughly through manual, this a series of problems can't be solved fast accurately at all.

SUMMERY OF THE UTILITY MODEL

The utility model provides a nut clamping device sets up base and top cap through vertical correspondence for effective centre gripping nut through adjusting the top cap height, is used for fixed and loosen the nut, through setting up rotating assembly at the base lower extreme, is used for realizing the rotation of the same angle of a plurality of nuts, thereby has solved the technical problem who mentions among the above-mentioned background art fast accurately.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a nut clamping device comprises a supporting frame, wherein a base is fixedly arranged on the supporting frame, a plurality of first positioning grooves are uniformly formed in the upper end of the base, a positioning seat for tightly sleeving the lower end of a nut is movably arranged in each first positioning groove, a circular groove is formed in the lower end of the base, a rotating assembly for driving the positioning seat to rotate is arranged in each circular groove, and the rotating assembly is tightly connected with a transmission mechanism;

the upper end of the top cover is fixedly connected with a hydraulic lifting device used for adjusting the height of the top cover, the lower end of the top cover is provided with second positioning grooves in one-to-one correspondence with the first positioning grooves, and connecting sleeves used for sleeving the upper ends of the nuts are fixedly arranged in the second positioning grooves.

Furthermore, the rotating assembly comprises Y-shaped cams fixedly connected with the positioning seats in a one-to-one correspondence manner and annular cams which are provided with a plurality of protruding parts and are in transmission fit with all the Y-shaped cams at the same time, the number of the protruding parts is integral multiple of the number of the Y-shaped cams, and rotating shafts of the annular cams are fixedly connected with the transmission mechanism.

Furthermore, the number of the first positioning grooves is 3-6.

Further, the transmission mechanism comprises a first bevel gear, a second bevel gear and a driving motor which are vertically meshed, the first bevel gear is coaxially connected with the annular cam, and the second bevel gear is coaxially connected with the driving motor.

Further, the support frame is upper end open-ended annular structure, has set firmly a backup pad in the support frame, base, Y type cam and ring cam locate the backup pad upper end, backup pad lower extreme is located to first conical gear, second conical gear and driving motor, and the pivot of ring cam is via locating through-hole and first conical gear rigid coupling in the backup pad.

Furthermore, the hydraulic lifting device is a hydraulic cylinder which is arranged in an inverted mode, and the movable end of the hydraulic cylinder is fixedly connected with the upper end of the top cover.

Compared with the prior art, the beneficial effects of the utility model are that: by designing the way that the top cover is vertically matched with the base, a plurality of nuts can be effectively fastened and clamped, so that the nuts can be conveniently processed; the height of the top cover is adjusted by arranging the hydraulic lifting device, so that the nut can be conveniently moved, and can be conveniently rotated when the nut is machined, and can be timely taken down and replaced by a new nut to be machined after the nut is machined; and set up rotating assembly through the lower extreme at the base, rotatory when can be fast accurate realization a plurality of nuts, reach the purpose that promotes nut machining efficiency.

Drawings

Fig. 1 is a schematic structural view of a nut holding device according to the present invention;

fig. 2 is a schematic cross-sectional view at a-a in fig. 1.

Reference numerals: the device comprises a support frame 1, a base 2, a first positioning groove 3, a positioning seat 4, a circular groove 5, a rotating assembly 6, a Y-shaped cam 601, an annular cam 602, a protruding part 6021, a transmission mechanism 7, a first bevel gear 701, a second bevel gear 702, a driving motor 703, a top cover 8, a hydraulic lifting device 9, a second positioning groove 10, a connecting sleeve 11 and a support plate 12.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

Referring to fig. 1 and 2, an embodiment of the utility model is, a nut clamping device, including support frame 1, support frame 1 is last to be fixed to be equipped with base 2, has evenly seted up a plurality of first constant head tank 3 in the upper end of base 2, and fig. 1 and 2 show for there being the situation of three first constant head tank 3, all are equipped with a rotatable positioning seat 4 in every constant head tank, and positioning seat 4's effect is closely cup jointed the nut lower extreme together to be convenient for nut and positioning seat 4 can rotate together, and in practice, can realize nut and 4 interference fit of positioning seat. Furthermore, a circular groove 5 is formed at the lower end of the base 2, a rotating assembly 6 for driving the positioning seat 4 to rotate is arranged in the circular groove 5, and the rotating assembly 6 is connected with a transmission mechanism 7 for obtaining sufficient power support. Furthermore, a top cover 8 is arranged above the base 2, the upper end of the top cover 8 is fixedly connected with the movable part of the hydraulic lifting device 9, second positioning grooves 10 which correspond to the first positioning grooves 3 one by one are formed in the lower end of the top cover 8, connecting sleeves 11 are fixedly arranged in the second positioning grooves 10, the connecting sleeves 11 are used for positioning the upper ends of the nuts, and the connecting sleeves 11 are matched with the positioning seats 4 to tightly clamp the nuts under the action of the hydraulic lifting device 9.

The rotating assembly 6 described above includes a plurality of Y-shaped cams 601 and a ring cam 602 which is uniformly provided with a plurality of protruding portions 6021 and is in transmission fit with the Y-shaped cams 601, the Y-shaped cams 601 correspond to the positioning seats 4 one by one, the rotating shaft of the Y-shaped cams 601 is fixedly connected with the center position of the lower end of the positioning seat 4, the ring cam 602 is arranged in the area surrounded by the Y-shaped cams 601, the protruding portions 6021 of the ring cam 602 can be in close contact with the Y-shaped cams 601, and the number of the protruding portions 6021 is an integral multiple of the number of the Y-shaped cams 601, as in fig. 1 and fig. 2, there are three Y-shaped cams 601 and three protruding portions 6021.

The transmission mechanism 7 described above includes the first bevel gear 701, the second bevel gear 702, and the driving motor 703 that are vertically engaged, the first bevel gear 701 is coaxially connected to the ring cam 602, the second bevel gear 702 is coaxially connected to the driving motor 703, and the driving motor 703 selects a stepping motor.

The hydraulic lifting device 9 adopts a hydraulic cylinder with an inverted structure, the bottom end of the hydraulic cylinder is fixed on the wall surface, and the movable end of the hydraulic cylinder is fixedly connected with the upper end of the top cover 8.

Referring to fig. 1 and 2, there are three Y-shaped cams 601 and three protrusions 6021, and the working principle of the nut clamping device of the present invention is as follows: an adjusting hydraulic cylinder is used for lifting the top cover 8 upwards, installing the nut in the positioning seat 4, starting a stepping motor, driving the first bevel gear 701 to rotate by the second bevel gear 702 so as to drive the annular cam 602 to rotate, driving the positioning seat 4 and the nut to rotate together by the convex part 6021 of the annular cam 602 acting on the Y-shaped cam 601, selecting equal angular distance to rotate the annular cam 602 so as to ensure that each position of the nut is correspondingly processed, firstly ensuring that the convex parts 6021 of the annular cam 602 are in one-to-one corresponding contact with the Y-shaped cam 601 before rotation, starting to rotate the annular cam 602 to 120 degrees, driving the positioning seat 4 and the nut to rotate by the Y-shaped cam 601 by 120 degrees, and the nut comes to a first processing position, wherein at the moment, the corresponding position relationship between each convex part 6021 and the Y-shaped cam 601 changes, but the convex part 6021 is still in close contact with each Y-shaped cam 601, and correspondingly processing the first processing position of, after the machining is finished, the annular cam 602 is continuously rotated to 240 degrees in the same direction, the nut is also rotated to the second machining position along with the rotation, at the moment, the position relation between the protruding part 6021 and the Y-shaped cam 601 is changed again, but the protruding part 6021 is still contacted with the Y-shaped cam 601, the second machining position of the nut is machined, after the machining is finished, the annular cam 602 is rotated to 360 degrees in the same direction, the nut is driven to the third machining position, and the machine tool continuously machines the third machining position of the nut, so that the whole machining requirement of the nut is finished, it is noted that in the embodiment, the nut is set to have three machining positions, if more machining positions exist, the corresponding adjustment can be carried out by setting the number of the protruding parts 6021 to be integral multiples of more than 1 of the Y-shaped cam 601, meanwhile, as the machining part of the machine tool needs to be opposite to the same position of different nuts to ensure that the same machining effect is achieved, preferably, the machine tool is also provided with a plurality of processing parts which are uniformly distributed, and each processing part corresponds to the same position of different nuts, or the processing parts of the machine tool can rotate according to a set angle, so that the requirements of the processing parts corresponding to the same positions of different nuts can be met.

Preferably, the number of the first positioning grooves 3 is at least 3, and at most 6, and correspondingly, the positioning seats 4, the second positioning grooves 10, the Y-shaped cams 601 and the connecting sleeves 11 are all consistent with the number of the first positioning grooves 3, so that enough space is ensured for machining the nut at the machining part of the machine tool.

More preferably, the supporting frame 1 is designed to be an annular structure with an open upper end, the supporting plate 12 is fixedly arranged in the supporting frame 1, the supporting plate 12 is made of a hard stainless steel plate, the stainless steel plate and the supporting frame 1 are welded together, the base 2, the Y-shaped cam 601 and the annular cam 602 are arranged at the upper end of the supporting plate 12, the first bevel gear 701, the second bevel gear 702 and the driving motor 703 are arranged at the lower end of the supporting plate 12, and the rotating shaft of the annular cam 602 is fixedly connected with the first bevel gear 701 through a through hole arranged in the supporting plate 12.

In the explanation of the present invention, it should be noted that the term "orientation" is only used for convenience of description and understanding, and is not only limited to the installation position of specific technical features, but also does not exclude other installation manners that can be realized.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a nut clamping device, includes support frame (1), its characterized in that: the supporting frame (1) is fixedly provided with a base (2), the upper end of the base (2) is uniformly provided with a plurality of first positioning grooves (3), a positioning seat (4) for tightly sleeving the lower end of a nut is movably arranged in each first positioning groove (3), the lower end of the base (2) is provided with a circular groove (5), a rotating assembly (6) for driving the positioning seat (4) to rotate is arranged in the circular groove (5), and the rotating assembly (6) is tightly connected with a transmission mechanism (7);

still including top cap (8) of locating base (2) top, the upper end rigid coupling of top cap (8) is equipped with hydraulic pressure elevating gear (9) that are used for adjusting top cap (8) height, and second constant head tank (10) with first constant head tank (3) one-to-one are seted up to the lower extreme of top cap (8), and second constant head tank (10) internal stability is equipped with adapter sleeve (11) that are used for the cover to establish the nut upper end.

2. A nut holding apparatus as claimed in claim 1, wherein: the rotating assembly (6) comprises Y-shaped cams (601) fixedly connected with the positioning seats (4) in a one-to-one correspondence mode and annular cams (602) which are uniformly provided with a plurality of protruding parts (6021) and are simultaneously in transmission fit with all the Y-shaped cams (601), the number of the protruding parts (6021) is integral multiple of the number of the Y-shaped cams (601), and rotating shafts of the annular cams (602) are fixedly connected with the transmission mechanisms (7).

3. A nut holding apparatus as claimed in claim 2, wherein: the number of the first positioning grooves (3) is 3-6.

4. A nut holding apparatus as claimed in claim 3, wherein: the transmission mechanism (7) comprises a first bevel gear (701), a second bevel gear (702) and a driving motor (703) which are vertically meshed, the first bevel gear (701) is coaxially connected with the annular cam (602), and the second bevel gear (702) is coaxially connected with the driving motor (703).

5. A nut holding apparatus as claimed in claim 4, wherein: support frame (1) is upper end open-ended loop configuration, has set firmly a backup pad (12) in support frame (1), backup pad (12) upper end is located in base (2), Y type cam (601) and ring cam (602), backup pad (12) lower extreme is located in first conical gear (701), second conical gear (702) and driving motor (703), and the pivot of ring cam (602) is via locating through-hole and first conical gear (701) rigid coupling on backup pad (12).

6. A nut holding apparatus as claimed in claim 1, wherein: the hydraulic lifting device (9) is a hydraulic cylinder which is arranged in an inverted mode, and the movable end of the hydraulic cylinder is fixedly connected with the upper end of the top cover (8).