CN219094264U

CN219094264U - Automatic screw locking system

Info

Publication number: CN219094264U
Application number: CN202223587854.3U
Authority: CN
Inventors: 赵卫东; 夏兵; 张顶娇
Original assignee: Suzhou Tengfei Precision Technology Co ltd
Current assignee: Suzhou Tengfei Precision Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-30
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses an automatic screw locking system, which belongs to the technical field of automatic machine manufacturing, and comprises a fixed plate, wherein the upper end of the bottom fixed plate is fixedly connected with a plurality of lower guide shafts, the upper ends of the plurality of lower guide shafts are fixedly connected with a middle fixed plate, the upper ends of the middle fixed plate are fixedly connected with a plurality of upper guide posts, the upper ends of the plurality of upper guide posts are fixedly connected with a positioning substrate, servo motor equipment is arranged between the positioning substrate and the middle fixed plate, the stability of the tightening torque during screw tightening is improved by an external torque meter and an internal current monitoring multi-way monitoring mode, meanwhile, the screw after tightening is not easy to loose due to unstable tightening torque, and an integrated quick-change mechanism and a high-precision external torque meter can realize simultaneous locking of screws with different specifications, so that the input cost of production equipment is effectively saved, and meanwhile, the locking of high-precision screws with high requirements is met.

Description

Automatic screw locking system

Technical Field

The utility model relates to the technical field of automatic machine manufacturing, in particular to an automatic screw locking system.

Background

The full-automatic screw locking machine is also called a full-automatic screw locking machine, an automatic screw feeding machine, an industrial tightening system and the like, and is used for replacing the traditional manual screw tightening machine.

Chinese patent grant bulletin number: CN208787926U, which provides an on-line automatic locking device, the supporting table of the device, and an on-line conveying mechanism, a screw feeding mechanism, a locking mechanism and a locking component displacement mechanism which are arranged on the supporting table of the device; the on-line conveying mechanism can receive workpieces from the production line, the locking mechanism carries out three-dimensional movement through the locking component displacement mechanism, the locking mechanism can be respectively in butt joint with the screw feeding mechanism and the on-line conveying mechanism, the screws are locked on the workpieces in the on-line conveying mechanism, and finally the on-line conveying mechanism returns the workpieces to the production line, so that links of manual participation in feeding and discharging are removed, an on-line screw locking function is realized, in addition, the locking mechanism can feed back whether the screws are locked in place or not in the locking process through the mutual cooperation of the locking sensor and the control system, the locking operation and the locking effect detection of the workpieces are synchronously carried out, the aim of automatically detecting the locking effect is fulfilled, the conditions of inaccurate detection and waste of human resources caused by manual detection are improved, the production cost is effectively reduced, and the production efficiency is improved.

But the structure is comparatively complicated in this patent, and it is comparatively inconvenient to use and overhaul, and automatic screw lock on the market at present adopts through current monitoring moment of torsion value simultaneously, and it is relatively poor to screw up the moment of torsion precision, and the screw after screwing up is easy because the moment of torsion is unstable and is not hard up drops.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model aims to provide an automatic screw locking system, which can realize the mode of adding internal current monitoring and multipath monitoring through an external torque meter so as to increase the stability of the tightening torque when the screw is tightened, and meanwhile, the screw after being tightened is not easy to loose and fall off due to unstable tightening torque, and the integrated quick-change mechanism and the high-precision external torque meter can realize that one set of tightening system can lock a plurality of screws with different specifications at the same time, thereby effectively saving the input cost of production equipment and simultaneously meeting the locking of high-requirement high-precision screws.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: an automatic screw locking system comprises a bottom fixing plate, wherein the upper end of the bottom fixing plate is fixedly connected with a plurality of lower guide shafts, the upper ends of the lower guide shafts are fixedly connected with a middle fixing plate, the upper ends of the middle fixing plates are fixedly connected with a plurality of upper guide posts, the upper ends of the upper guide posts are fixedly connected with a positioning substrate, servo motor equipment is arranged between the positioning substrate and the middle fixing plate, an installation substrate and a sliding substrate are arranged at the upper end of the servo motor equipment, a rolling guide rail is fixedly connected with the upper end of the sliding substrate, a plurality of spring baffle plates are fixedly connected between the rolling guide rail and the installation substrate, a spring limiting block and a coil spring are respectively arranged between a pair of spring baffle plates, the side wall of the upper end of the installation substrate is fixedly connected with a displacement installation block, the lower end of the displacement installation block is provided with a sensor head installation bracket, the upper end of the displacement installation block is provided with a contact type digital sensor, the upper end of the servo motor equipment is provided with a tightening shaft installation block and a pair of deep groove ball bearings respectively, the tightening shaft installation block and the deep groove ball bearings are both positioned at the front end of the installation base plate, the tightening shaft installation block is positioned between the pair of deep groove ball bearings, the lower end of the tightening shaft installation block is provided with a tightening shaft switching sleeve and a rotating sliding sleeve respectively in sequence, the upper end of the tightening shaft installation block is provided with a servo tightening shaft, the stability of the tightening torque during screw tightening is increased by an external torque meter and an internal current monitoring multipath monitoring mode, the screw after tightening is not easy to loose and fall due to unstable tightening torque, a set of screw with different specifications can be locked simultaneously by an integrated quick change mechanism and a high-precision external torque meter, the locking of high-precision screws with high requirements is met while the input cost of production equipment is effectively saved.

Further, a sensor head cable is arranged at the upper end of the contact type digital sensor, a stop pin is arranged at the lower end of the sensor head mounting bracket, and the stop pin is used for limiting and stopping the sensor head cable.

Further, the spacer pin is installed to the rotation sliding sleeve lower extreme, install C type buckle between screw up axle switching sleeve and the rotation sliding sleeve, and the outer pot head is equipped with second coil spring, carries out the card through C type buckle to it and solid, and second coil spring is convenient for its slip that resets simultaneously.

Further, the front end of the tightening shaft installation block is provided with a near installation plate, and a tool quick-change device is arranged between the tightening shaft installation block and the servo tightening shaft and can accelerate tool replacement.

Furthermore, a proximity sensor is arranged between the proximity mounting plate and the tool quick-change device, and the mechanical efficiency of the device can be improved through the installation of the proximity sensor.

Furthermore, a guide rail oil receiving groove is formed between the mounting base plate and the sliding base plate, and lubricant can be added through the arrangement of the guide rail oil receiving groove, so that the sliding working efficiency is improved.

Further, install a plurality of locating pins between bottom fixed plate and the middle fixed plate, the locating pin outer pot head is equipped with the pin stop collar, can fix a position the screw through the locating pin to the pin stop collar is spacing not only, also can play the guard action to it.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

(1) The high-precision angle and torque monitoring device can realize high-precision angle and torque monitoring by adopting the servo motor and an external high-precision torque meter.

(2) This scheme adopts integral type screw to absorb the stability that the mechanism can be too efficient assurance screw to absorb.

(3) The screw sucking system is matched with the high-precision gas-electric integrated quick-change mechanism, so that a set of screwing system can lock screws of various different specifications at the same time, and the input cost of production equipment is effectively saved.

Drawings

FIG. 1 is a schematic view of a servo tightening mechanism of the present utility model;

fig. 2 is a schematic structural view of a screwing head quick-change mechanism of the present utility model.

The reference numerals in the figures illustrate:

1. bottom part a fixing plate; 2. a lower guide shaft; 3. a middle fixing plate; 4. an upper guide post; 5. positioning a substrate; 6. a servo motor device; 7. a mounting substrate; 8. a rolling guide rail; 9. sliding the substrate; 10. a spring baffle; 11. a coil spring; 12. a spring limiting block; 13. a displacement mounting block; 14. a sensor head mounting bracket; 15. a contact digital sensor; 16. a sensor head cable; 17. a stop pin; 18. tightening the shaft mounting block; 19. deep groove ball bearings; 20. tightening the shaft adapter sleeve; 21. rotating the sliding sleeve; 22. a limiting pin; 23. a servo tightening shaft; 24. near the mounting plate; 25. and a tool quick-change device.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1:

referring to fig. 1-2, the automatic screw locking system comprises a bottom fixing plate 1, a plurality of lower guide shafts 2 are fixedly connected to the upper ends of the bottom fixing plate 1, a middle fixing plate 3 is fixedly connected to the upper ends of the plurality of lower guide shafts 2, a plurality of upper guide posts 4 are fixedly connected to the upper ends of the middle fixing plate 3, a positioning substrate 5 is fixedly connected to the upper ends of the plurality of upper guide posts 4, a servo motor device 6 is installed between the positioning substrate 5 and the middle fixing plate 3, an installation substrate 7 and a sliding substrate 9 are installed at the upper end of the servo motor device 6, a rolling guide rail 8 is fixedly connected to the upper end of the sliding substrate 9, a plurality of spring baffles 10 are fixedly connected between the rolling guide rail 8 and the installation substrate 7, a spring limiting block 12 and a coil spring 11 are respectively installed between a pair of spring baffles 10, a displacement installation block 13 is fixedly connected to the side wall at the upper end of the installation substrate 7, the sensor head installing support 14 is installed to displacement installing piece 13 lower extreme, contact digital sensor 15 is installed to displacement installing piece 13 upper end, but servo motor equipment 6 upper end installs respectively and screws up axle installing piece 18 and a pair of deep groove ball bearing 19, and screw up axle installing piece 18 and deep groove ball bearing 19 all are located the mounting substrate 7 front end, screw up axle installing piece 18 is located the centre of a pair of deep groove ball bearing 19, screw up axle installing piece 18 lower extreme installs respectively in proper order and screws up axle switching sleeve 20 and rotation sliding sleeve 21, screw up axle installing piece 18 upper end and install servo screw up axle 23, thereby can lock simultaneously the screw of a set of different specifications through integrative quick change mechanism plus high accuracy external torque meter, the effectual locking of satisfying high requirement high accuracy screw of having saved the input cost of production facility.

The upper end of the contact type digital sensor 15 is provided with a sensor head cable 16, the lower end of the sensor head mounting bracket 14 is provided with a stop pin 17, and the stop pin 17 is used for limiting and stopping the sensor head.

The limiting pin 22 is installed at the lower end of the rotary sliding sleeve 21, the C-shaped retaining ring is installed between the tightening shaft switching sleeve 20 and the rotary sliding sleeve 21, the second spiral spring is sleeved at the outer end, the second spiral spring is clamped and fixed through the C-shaped retaining ring, and meanwhile the second spiral spring is convenient for resetting and sliding.

The front end of the tightening shaft mounting block 18 is provided with a near mounting plate 24, and a tool quick-change device 25 is arranged between the tightening shaft mounting block 18 and the servo tightening shaft 23, so that the tool can be replaced quickly through the tool quick-change device 25.

A proximity sensor is installed between the proximity mounting plate 24 and the tool quick-change device 25, and the mechanical efficiency of the device can be improved by installing the proximity sensor.

A guide rail oil receiving groove is arranged between the mounting base plate 7 and the sliding base plate 9, and lubricant can be added through the arrangement of the guide rail oil receiving groove, so that the sliding working efficiency is improved.

A plurality of locating pins are arranged between the bottom fixing plate 1 and the middle fixing plate 3, pin limiting sleeves are sleeved at the outer ends of the locating pins, the screws can be fixed in a locating mode through the locating pins, and the pin limiting sleeves are not only limited, but also can play a protective role.

The utility model can realize the mode of adding internal current to monitor multiple paths by the external torque meter, thereby increasing the stability of the tightening torque when the screw is tightened, simultaneously the screw after being tightened is not easy to loose and fall off due to unstable tightening torque, and the integral quick-change mechanism and the high-precision external torque meter can realize that one set of tightening system can lock screws with different specifications at the same time, thereby effectively saving the input cost of production equipment and simultaneously meeting the locking of high-requirement high-precision screws.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. Automatic screw lock pair system, including bottom fixed plate (1), its characterized in that: the utility model discloses a device for detecting the displacement of the motor, which comprises a bottom fixed plate (1), a plurality of lower guide shafts (2) fixedly connected with, a plurality of lower guide shafts (2), middle fixed plate (3), a plurality of upper guide posts (4) fixedly connected with of middle fixed plate (3), a plurality of upper guide posts (4), a positioning substrate (5) fixedly connected with of upper end, servo motor equipment (6) are installed between positioning substrate (5) and middle fixed plate (3), mounting substrate (7) and sliding substrate (9) are installed to servo motor equipment (6) upper end, rolling guide rail (8) are fixedly connected with at the upper end of sliding substrate (9), a plurality of spring baffle plates (10) are fixedly connected between rolling guide rail (8) and mounting substrate (7), a pair of spring baffle plates (10) are respectively installed between spring limiting block (12) and coil spring (11), displacement mounting block (13) are fixedly connected with the upper end side wall of mounting substrate (7), sensor head mounting block (14) are installed to the lower end of displacement mounting block (13), a pair of sensor head mounting bracket (14) is installed to the upper end, a pair of sensor head mounting block (19) is installed to the sensor head mounting block (13), a pair of sensor head mounting block (19) is installed to the digital ball mounting block (19), and screw up axle installation piece (18) and deep groove ball bearing (19) all are located mounting substrate (7) front end, screw up axle installation piece (18) and be located in the middle of a pair of deep groove ball bearing (19), screw up axle installation piece (18) lower extreme and install respectively in proper order and screw up axle adapter sleeve (20) and rotation sliding sleeve (21), screw up axle installation piece (18) upper end and install servo screw up axle (23).

2. The automatic screw locking system of claim 1, wherein: the upper end of the contact type digital sensor (15) is provided with a sensor head cable (16), and the lower end of the sensor head mounting bracket (14) is provided with a stop pin (17).

3. The automatic screw locking system of claim 1, wherein: the lower end of the rotating sliding sleeve (21) is provided with a limiting pin (22), a C-shaped retaining ring is arranged between the tightening shaft switching sleeve (20) and the rotating sliding sleeve (21), and the outer end of the C-shaped retaining ring is sleeved with a second spiral spring.

4. The automatic screw locking system of claim 1, wherein: the front end of the tightening shaft mounting block (18) is provided with a near mounting plate (24), and a tool quick-change device (25) is arranged between the tightening shaft mounting block (18) and the servo tightening shaft (23).

5. The automatic screw locking system of claim 4, wherein: a proximity sensor is arranged between the proximity mounting plate (24) and the tool quick-change device (25).

6. The automatic screw locking system of claim 1, wherein: a guide rail oil receiving groove is arranged between the mounting base plate (7) and the sliding base plate (9).

7. The automatic screw locking system of claim 1, wherein: a plurality of locating pins are arranged between the bottom fixing plate (1) and the middle fixing plate (3), and pin limiting sleeves are sleeved at the outer ends of the locating pins.