CN-224209456-U - Compression structure of screw sleeve screwing device

CN224209456UCN 224209456 UCN224209456 UCN 224209456UCN-224209456-U

Abstract

The utility model discloses a compression structure of a screw sleeve screwing device, which relates to the field of automobile part processing, and is technically characterized in that: the screw-in head is required to reversely rotate to be separated from the inside of the screw-in sleeve after the screw-in is installed, however, due to the limited contact area between the external thread of the screw-in head and the hole site of the automobile part, the circumferential shearing force generated by the reverse torque transmission of the screw-in head can exceed the static friction force between the external thread of the screw-in head and the matrix, so that the screw-in sleeve can synchronously reversely displace along with the screw-in head, the axial looseness of the screw-in sleeve is reduced, the pretightening force is reduced due to the light weight, and even the screw-in sleeve is completely separated from the hole site phenomenon of the automobile part when serious, so that the processing is inconvenient.

Inventors

LI PEICHEN
LI YONGLIAN
CAO LIANG
ZHOU YONG
WANG GUIMING
LI JIAZHEN
WU NINGNING

Assignees

佛山市和阳精密金属制品有限公司

Dates

Publication Date: 20260508
Application Date: 20250521

Claims (10)

1. The utility model provides a compression structure of swivel nut screw in device, includes the movable seat, the movable seat is connected with outside drive arrangement, one side of movable seat is equipped with the backup pad, the top of backup pad is equipped with the rotating electrical machines, the bottom of backup pad is equipped with the transmission shaft, the rotating electrical machines drive the transmission shaft rotates, the bottom of transmission shaft is equipped with the screw in head, its characterized in that, the bottom of transmission shaft is equipped with the connecting seat, the sliding cavity has been seted up to the bottom of connecting seat, the inside of sliding cavity is equipped with the movable rod, the one end of movable rod with sliding connection of sliding cavity, the screw in head is located the other end of movable rod, one side sliding connection of movable seat has the steady rest, the movable rod with one side rotation connection of steady rest, one side of steady rest is equipped with compresses tightly the drive seat, the top of compressing tightly the drive seat is equipped with compression spring, compression spring's one end is located one side of movable seat.
2. The compression structure of the screw-in device for the threaded sleeve according to claim 1, wherein limiting guide grooves are formed in two sides of the movable rod, limiting guide blocks are arranged in two sides of the sliding cavity, and the limiting guide blocks in two sides of the sliding cavity are respectively in sliding fit with the limiting guide grooves in two sides of the movable rod.
3. The compression structure of the screw-in device for the threaded sleeve according to claim 1, wherein an extension seat is arranged on one side of the stabilizing frame, a connecting groove is formed in the extension seat, a stabilizing bearing is arranged in the connecting groove, the other end of the movable rod penetrates through the inner ring of the stabilizing bearing, and the other end of the stabilizing rod is rotationally connected with the inner ring of the stabilizing bearing.
4. The compression structure of a screw-in device for a threaded sleeve according to claim 3, wherein a guiding sliding block is arranged on the other side of the stabilizing frame, a guiding sliding rail is arranged on one side of the movable seat, and the guiding sliding rail is in sliding fit with the guiding sliding block.
5. The compression structure of the screw-in device for the threaded sleeve according to claim 1, wherein a connecting shaft is arranged at the other end of the stabilizing rod, a limiting seat is arranged at one end of the connecting shaft, a limiting slot is formed in one end of the limiting seat, the limiting slot is in a hexagonal shape, a connecting inserting column is arranged at one end of the screw-in head, and the connecting inserting column is matched with the limiting slot in shape, so that the connecting inserting column is spliced with the limiting slot.
6. The compression structure of the screw-in device for the threaded sleeve of claim 5, wherein an installation groove is formed in one end of the connecting shaft, the installation groove is communicated with the limit slot, a first fixing hole communicated with the installation groove is formed in one side of the connecting shaft, a connecting inserting rod is arranged at one end of the connecting inserting column, a fixing block is arranged at one end of the connecting inserting rod, a second fixing hole is formed in one side of the fixing block, the fixing block and the connecting inserting rod penetrate through the limit slot, the fixing block and the connecting inserting rod are spliced with the installation groove, and the first fixing hole corresponds to the second fixing hole.
7. The pressing structure of the screw-in device for the threaded sleeve according to claim 1, wherein a sliding rod is arranged on one side of the movable seat, a sliding groove is formed in the pressing transmission seat, one end of the sliding rod is in sliding fit with the sliding groove, a blocking plate is arranged on the other end of the sliding rod, the size of the blocking plate is larger than that of the sliding rod, the pressing spring penetrates through the outer portion of the sliding rod, the pressing spring is located between the blocking plate and the pressing transmission seat, one end of the pressing spring is in abutting contact with the blocking plate, and the other end of the pressing spring is in abutting contact with the transmission seat.
8. The pressing structure of the screw-in device for the threaded sleeve according to claim 7, wherein a setting seat is arranged on one side of the movable seat, an adjusting cylinder is arranged on one side of the setting seat, and a piston rod end of the adjusting cylinder penetrates through the other side of the setting seat, so that a piston rod of the adjusting cylinder is connected with the blocking plate.
9. The compression structure of a screw-in device for a threaded sleeve according to claim 8, wherein a limit bottom plate is arranged at one end of the sliding rod, the limit bottom plate is larger than the sliding groove, and the limit bottom plate is located below the compression transmission seat.
10. The compression structure of a screw-in device for a threaded sleeve according to claim 1, wherein a reinforcing frame is arranged at the bottom of the supporting plate, one side of the reinforcing frame is connected with the movable seat, and the reinforcing frame is triangular.

Description

Compression structure of screw sleeve screwing device Technical Field The utility model relates to the field of automobile part machining, in particular to a compression structure of a screw sleeve screwing device. Background In the field of automobile lightweight manufacturing, the wide application of low-density materials such as aluminum alloy and the like puts higher requirements on the reliability of threaded connection, and a screw insert process is used as a typical enhanced connection technology, and the high-strength alloy screw insert is screwed into a hole site of an automobile part, so that the hole site threaded bearing strength of the automobile part can be effectively improved. When the screw sleeve is processed, the screw head of the screw device is required to be screwed into the screw sleeve, so that the internal thread of the screw sleeve is matched with the external thread of the screw head, the screw sleeve is loaded under the screw head, when the screw device reaches the hole site of the automobile part, the screw sleeve of the screw head is screwed into the hole site of the automobile part by the screw device, so that the external thread of the screw sleeve is matched with the internal thread of the hole site of the automobile part, when the screw sleeve is screwed into a light screw sleeve with a shorter external thread (usually less than or equal to 3 turns), the screw head is required to be reversely rotated to be separated from the screw sleeve after the screw sleeve is completely installed, however, due to the limited contact area of the external thread of the screw sleeve and the hole site of the automobile part, the circumferential shear force generated by reverse torque transmission of the screw head can exceed the static friction force between the external thread of the screw sleeve and the base body, the screw sleeve can synchronously reversely displace along with the screw head, the screw sleeve is slightly loosened axially, the pretightening force is reduced, and even the screw sleeve is completely separated from the hole site of the automobile part when serious, and the screw sleeve is inconvenient to process. Disclosure of utility model The utility model provides a compression structure of a screw sleeve screwing device, which aims to solve the technical problems that when a screw sleeve is screwed into a light screw sleeve with a short external thread (usually less than or equal to 3 circles), a screwing head needs to reversely rotate to separate from the inside of the screw sleeve after the screw sleeve is installed, however, due to the limited contact area between the external thread of the screw sleeve and a hole site of an automobile part, the circumferential shearing force generated by the reverse torque transmission of the screwing head exceeds the static friction force between the external thread of the screw sleeve and a base body, so that the screw sleeve can synchronously and reversely displace along with the screwing head, the screw sleeve axially loosens to reduce the pretightening force is slightly caused, and even the phenomenon that the screw sleeve is completely separated from the hole site of the automobile part occurs in severe cases, so that the processing is inconvenient. The technical scheme for solving the technical problems is as follows: The utility model provides a compression structure of swivel nut screw in device, includes the movable seat, the movable seat is connected with outside drive arrangement, one side of movable seat is equipped with the backup pad, the top of backup pad is equipped with the rotating electrical machines, the bottom of backup pad is equipped with the transmission shaft, the rotating electrical machines drive the transmission shaft rotates, the bottom of transmission shaft is equipped with the screw in head, the bottom of transmission shaft is equipped with the connecting seat, slide cavity has been seted up to the bottom of connecting seat, slide cavity's inside is equipped with the movable rod, the one end of movable rod with slide cavity sliding connection, the screw in head is located the other end of movable rod, one side sliding connection of movable seat has the stabilizing frame, the movable rod with one side rotation of stabilizing frame is connected, one side of stabilizing frame is equipped with compresses tightly the transmission seat, the top of compressing tightly the transmission seat is equipped with compression spring, compression spring's one end is located one side of movable seat. When the screw sleeve of the screwing-in head is required to be screwed into a hole site of an automobile part, the screwing-in head is matched with the internal thread of the screw sleeve through the external thread, the initial loading of the screw sleeve is completed, the external driving device drives the movable seat to move downwards integrally, the supporting plate, the transmission shaft and the screwing-in head sy