CN-224209458-U - Screw positioning structure of screw machine

CN224209458UCN 224209458 UCN224209458 UCN 224209458UCN-224209458-U

Abstract

The utility model discloses a screw machine's screw location structure relates to auto parts production field, and its technical essential is: including the backup pad of being connected with outside elevating gear, one side of backup pad is equipped with the drive seat, the bottom of drive seat is equipped with the transmission shaft, the top of drive seat is equipped with the drive transmission shaft pivoted rotating electrical machines, the bottom of transmission shaft is equipped with the absorption connecting rod, and aim at solves the spacing groove of present screw in head and only can match single model hexagonal screw, if need when the hexagonal screw of different models of screw in, then can lead to the problem of the shape mismatch of spacing groove and hexagonal screw, like: when the hexagonal screw is smaller than the limit groove, the contact area of the hexagonal screw and the limit groove of the screwing head is insufficient, so that the electric driving torque transmission efficiency is reduced, even idling occurs, if the hexagonal screw is larger than the limit groove, the hexagonal screw cannot be loaded in the limit groove, and the technical problem of inconvenience in machining of automobile parts is caused.

Inventors

Tu Xianliang
Lv Shougang
YU ZENGHUI
LI JIANJUN
WEN LIBIN
LV FENG
YE XIANYOU

Assignees

佛山市和阳精密金属制品有限公司

Dates

Publication Date: 20260508
Application Date: 20250512

Claims (10)

1. The utility model provides a screw positioning structure of screw machine, includes the backup pad of being connected with outside elevating gear, one side of backup pad is equipped with the drive seat, the bottom of drive seat is equipped with the transmission shaft, the top of drive seat is equipped with the drive transmission shaft pivoted rotating electrical machines, the bottom of transmission shaft is equipped with the absorption connecting rod, the one end of absorption connecting rod is equipped with the screw in head, the spacing groove has been seted up to the bottom of screw in head, its characterized in that, the link has been seted up to the one end of absorption connecting rod, the mounting groove has been seted up to the one end of link, the screw in head with the mounting groove grafting, the intercommunication has been seted up at the top of screw in head the connecting slot of spacing groove, the inside of mounting groove is equipped with the vacuum suction head, the vacuum suction head passes the mounting groove makes the vacuum suction head is located the inside of spacing groove, the first fixed orifices has been seted up at the outer edge of screw in head, the link is followed and is seted up the intercommunication the second fixed orifices of mounting groove, wear to be equipped with fixing bolt in the second fixed orifices, fixing bolt with first fixed bolt screw in cooperation.
2. The screw positioning structure of the screw machine according to claim 1, wherein a sealing gasket is arranged at the top of the screwing head, the sealing gasket is annular in shape and elastic, the sealing gasket is abutted against the top of the mounting groove, and the vacuum suction head penetrates through the inner ring of the sealing gasket.
3. The screw positioning structure of the screw machine according to claim 2, wherein a fixing clamping column is arranged at the bottom of the sealing gasket, the fixing clamping column has elasticity, a fixing clamping groove is formed in the top of the screwing head, and the fixing clamping column is clamped with the fixing clamping groove.
4. The screw positioning structure of the screw machine according to claim 1, wherein a plurality of mounting sliding grooves are formed in the mounting groove, a plurality of mounting sliding blocks are arranged on the outer edge of the screwing head, and the plurality of mounting sliding blocks are respectively in sliding fit with the plurality of mounting sliding grooves.
5. The screw positioning structure of a screw machine according to claim 1, wherein a connecting seat is arranged on one side of the supporting plate, an air slip ring is arranged in the connecting seat, the adsorption connecting rod penetrates through the air slip ring, the adsorption connecting rod is rotationally connected with a rotor of the air slip ring, a vacuum air cavity is formed in the adsorption connecting rod, the rotor of the air slip ring is connected with a connecting air pipe, one end of the connecting air pipe is communicated with the vacuum air cavity, a connecting air valve communicated with the inside of a stator of the air slip ring is arranged on one side of the connecting seat, and the connecting air valve is connected with an external vacuum pump.
6. The screw positioning structure of a screw machine according to claim 5, wherein a buffer plate is arranged on one side of the connecting seat, the buffer plate is located above the connecting seat, a plurality of buffer springs are arranged on the top of the connecting seat, one ends of the buffer springs are connected with the bottom of the buffer plate, a movable rod is arranged at the other end of the adsorption connecting rod, a guide seat is arranged at the bottom of the transmission shaft, a movable cavity is formed in the bottom of the guide seat, and the movable rod is in sliding fit with the movable cavity.
7. The screw positioning structure of a screw machine according to claim 6, wherein guide sliding grooves communicated with the movable cavity are formed in two sides of the guide seat, a mounting hole is formed in the movable rod, a guide rod is arranged in the mounting hole in a penetrating mode, two ends of the guide rod penetrate out of the adjacent guide sliding grooves, and two ends of the guide rod are respectively in sliding fit with the guide sliding grooves in two sides of the guide seat.
8. The screw positioning structure of a screw machine according to claim 7, wherein limiting plates are arranged at two penetrating ends of the guide rod, so that the limiting plates at two ends of the guide rod are respectively positioned at two sides of the guide seat, and the width of the limiting plates is larger than that of the guide sliding groove.
9. The screw positioning structure of a screw machine according to claim 7, wherein a plurality of sliding rods are arranged at the top of the connecting seat, the sliding rods are respectively located in the buffer springs, a plurality of sliding guide grooves are formed in the buffer plate, one ends of the sliding rods respectively penetrate out of the sliding guide grooves, and one ends of the sliding rods are respectively in sliding fit with the sliding guide grooves.
10. The screw positioning structure of a screw machine according to claim 9, wherein a stopper is provided at one end of the slide rod, the stopper has a size larger than that of the slide guide groove, and the stopper is located above the buffer plate.

Description

Screw positioning structure of screw machine Technical Field The utility model relates to the field of automobile part production, in particular to a screw positioning structure of a screw machine. Background The vacuum screw machine is a core tool in automatic assembly equipment, is mainly used for grabbing, positioning and screwing screws and is widely applied to the field of automobile manufacturing, has the core function of forming negative pressure adsorption screws in screw-in heads through a vacuum adsorption system, is generally provided with limiting grooves aiming at the geometric characteristics of hexagonal screws, utilizes the shape matching of the hexagonal limiting grooves and the heads of the hexagonal screws to enable the screws to be limited in the limiting grooves of the screw-in heads, and is matched with a servo motor to finish accurate screw-in, and compared with the traditional manual or semi-automatic tool, the vacuum screw machine has the advantages of high efficiency, high precision and low manual intervention, and is particularly suitable for batch assembly scenes of automobile parts (such as engine components, chassis fasteners, interior trim modules and the like). However, the limit groove of the current screwing head can only be matched with a single type of hexagonal screw, if the hexagonal screw with different types is required to be screwed in, the problem that the shape of the limit groove is not matched with that of the hexagonal screw is caused, for example, when the hexagonal screw is smaller than the limit groove, the contact area of the hexagonal screw and the limit groove of the screwing head is insufficient, the electric driving torque transmission efficiency is reduced, even idle running occurs, and if the hexagonal screw is larger than the limit groove, the hexagonal screw cannot be loaded in the limit groove, so that the processing of automobile parts is inconvenient. Disclosure of utility model The utility model provides a screw positioning structure of a screw machine, which aims to solve the problems that the limit groove of the prior screw-in head can only be matched with a single type of hexagonal screw, and the shape of the limit groove is not matched with that of the hexagonal screw when different types of hexagonal screws are needed to be screwed in, for example, when the hexagonal screw is smaller than the limit groove, the contact area of the hexagonal screw and the limit groove of the screw-in head is insufficient, the transmission efficiency of electric driving torque is reduced, even idling occurs, and when the hexagonal screw is larger than the limit groove, the hexagonal screw cannot be loaded in the limit groove, so that the processing of automobile parts is inconvenient. The technical scheme for solving the technical problems is as follows: The utility model provides a screw positioning structure of screw machine, includes the backup pad of being connected with outside elevating gear, one side of backup pad is equipped with the drive seat, the bottom of drive seat is equipped with the transmission shaft, the top of drive seat is equipped with the drive transmission shaft pivoted rotating electrical machines, the bottom of transmission shaft is equipped with the absorption connecting rod, the one end of absorption connecting rod is equipped with the screw in head, the spacing groove has been seted up to the bottom of screw in head, the link has been seted up to the one end of absorption connecting rod, the mounting groove has been seted up to the one end of link, the screw in head with the mounting groove grafting, the intercommunication has been seted up at the top of screw in head the connecting slot of spacing groove, the inside of mounting groove is equipped with the vacuum suction head, the vacuum suction head is connected outside vacuum pump, the vacuum suction head passes the mounting groove for the vacuum suction head is located the inside of spacing groove, first fixed orifices has been seted up at the outer edge of screw in head, the link is seted up along the second fixed orifices of intercommunication the mounting groove, wear to be equipped with fixing bolt in the second fixed orifices, fixing bolt with first fixed bolt cooperation screw. The installation groove is designed into standardized interface with the grafting face of screw in head, and the screw in head then is a plurality of, the spacing groove of every screw in head adapts to the hexagonal screw of a model respectively, when the model of needs screw in hexagonal screw changes, the size of hexagonal screw also can be changed when the model of hexagonal screw changes, consequently, select the spacing groove of corresponding screw in head, and let the screw in head adopt the grafting mode to cooperate with the mounting groove of absorption connecting rod, realize the intercommunication of vacuum suction head and spacing groove through the connecting slot, behind the fixed bolt