CN218462041U

CN218462041U - Power-off slipping type electric fixed-torque assembly tool

Info

Publication number: CN218462041U
Application number: CN202221992165.8U
Authority: CN
Inventors: 常炼; 路蕴华
Original assignee: WUXI MACMARTIN TORQUE SETTING ASSEMBLY TOOLS CO LTD
Current assignee: WUXI MACMARTIN TORQUE SETTING ASSEMBLY TOOLS CO LTD
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-02-10
Anticipated expiration: 2032-07-29

Abstract

The application relates to the technical field of fixed-torque assembly tools, and particularly discloses a power-off slipping type electric fixed-torque assembly tool which comprises a shell and an elastic clutch part provided with a clutch rod, wherein an electric control part, a power part and a gear set which are sequentially connected are arranged in the shell, the clutch rod is in transmission connection with the gear set through a transmission shaft, and a clutch sleeve is sleeved on the clutch rod in a sliding manner; the sliding mechanism comprises a sliding part, a Hall switch and a magnet, wherein the Hall switch and the magnet are oppositely arranged in the shell, the Hall switch is connected with a circuit board of the electric control part in a quick insertion mode, the clutch sleeve is located in the magnetic field range of the magnet, and the sliding part is in transmission connection with the clutch rod and between the clutch sleeve. This application is when the moment of torsion reaches, and the portion of skidding skids to drive separation and reunion cover deviates from the magnet motion, and the hall switch action, the outage of electronic decide assembly tool of turning round is compared with the machinery outage, and is not fragile.

Description

Power-off slipping type electric fixed-torque assembly tool

Technical Field

The application relates to the technical field of assembling tools for fixed torque, in particular to an electric fixed torque assembling tool for power-off slipping.

Background

The electric fixed-torque tool on the market at present has a single function, and adopts a mechanical power-off switch, so that the mechanical power-off switch has certain use times, is easy to damage and has short service life. In addition, when the tapping screw is tightened, because the tapping screw is subjected to large resistance, when the screw does not reach the required tightening torque, the tool is easily powered off, and the accuracy and safety of the tightening torque of the screw are easily influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the technical scheme of the application provides an outage gliding type electric fixed-torque assembling tool. The technical scheme is as follows:

the application provides a power-off slipping type electric fixed-torque assembling tool which comprises a shell and an elastic clutch part provided with a clutch rod, wherein an electric control part, a power part and a gear set are sequentially arranged in the shell, the clutch rod is in transmission connection with the gear set through a transmission shaft, and a clutch sleeve is sleeved on the clutch rod in a sliding manner; still include the mechanism of skidding, the mechanism of skidding including the portion of skidding, set up relatively in hall switch and magnet in the shell, hall switch with the circuit board of automatically controlled portion inserts soon and connects, the separation and reunion cover is located the magnetic field scope of magnet, the portion of skidding transmission connect in the clutch lever with between the separation and reunion cover, when the moment of torsion reaches, the transmission shaft continues right the portion of skidding applys power, the portion of skidding receives to order about after the resistance the separation and reunion cover deviates from the magnet motion, hall switch senses outage behind the magnetic field change of magnet.

Furthermore, the slipping part comprises a slipping block, an installation sleeve and a driving ball movably embedded in the installation sleeve, the installation sleeve is arranged in the clutch sleeve and coaxially connected with the clutch rod, the transmission shaft is coaxially connected with a slipping block positioned in the installation sleeve, the driving ball is extruded after rotating by the driving block, and the driving ball moves back to the transmission shaft to push the clutch sleeve to slip.

Specifically, the mounting sleeve is provided with at least two driving balls at equal intervals.

Particularly, the transmission shaft is sleeved with a limiting ring positioned in the mounting sleeve, and the driving ball is abutted to the limiting ring.

Further, elastic clutch portion still includes axle sleeve, moment of torsion spring part, the axle sleeve with the tip of shell links to each other, the clutch lever is followed the axial of axle sleeve is worn to establish the axle sleeve, the clutch lever is kept away from the end connection of transmission shaft has the head of deciding the turn round, fixed cover is equipped with the mounting bracket on the clutch lever, the moment of torsion spring part extrude in the mounting bracket with between the separation and reunion cover.

The electronic control unit comprises a shell, and is characterized by further comprising a forward and reverse rotation button and a starting button, wherein the starting button is arranged on the shell, and the forward and reverse rotation button is arranged on a circuit board of the electronic control unit.

Compared with the prior art, the application has the beneficial effects that: the starting switch is pressed, the Hall switch is in a standby state, the power part is linked with the elastic clutch part to rotate through the gear set and the slipping mechanism, when the torque reaches, the fixed twisting head is subjected to resistance and is transmitted to the clutch lever, and the mounting sleeve stops rotating. At the moment, the transmission shaft continuously transmits power to the slipping block, the slipping block rotates to apply thrust to the driving ball, and the driving ball moves back to the transmission shaft after being stressed, so that the clutch sleeve is pushed to slide away from the transmission shaft. The axial interval between separation and reunion cover and the magnet changes, and hall switch action, electronic decide to turn round assembly tool outage, compares with the mechanical outage, and is not fragile. When the self-tapping screw needs to be screwed down, the part of the Hall switch which is quickly inserted on the circuit board is firstly pulled out, and after the tool reaches the torque, the clutch sleeve moves, the Hall switch does not sense the change of the magnetic field any more, and then the sliding impact is continuously carried out, so that the self-tapping screw is screwed down.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application, in which:

FIG. 1 is a schematic diagram of the overall structure of the present application;

FIG. 2 is a schematic view of a mounting sleeve embodying the present application;

fig. 3 is a schematic diagram of a drive ball embodying the present invention.

Reference numerals: 1. a housing; 2. an electric control part; 3. a power section; 4. a gear set; 5. a clutch lever; 51. fixing a torsion head; 52. a mounting frame; 6. a clutch sleeve; 7. a shaft sleeve; 8. a torque spring member; 9. a sliding part; 91. beating a sliding block; 92. installing a sleeve; 93. a drive ball; 10. a Hall switch; 11. a magnet; 12. a start button; 13. a limiting ring; 14. a forward and reverse rotation button; 15. a temperature control switch.

Detailed Description

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The electric torque setting tool in the current market has a single function, adopts a mechanical power-off switch, has certain use times, is short in service life and is easy to damage. In addition, when the tapping screw is tightened, because the tapping screw is subjected to large resistance, when the screw does not reach the required tightening torque, the tool is easily powered off, and the accuracy and safety of the tightening torque of the screw are easily influenced.

the present application is described in further detail below with reference to fig. 1 to 3.

As shown in fig. 1, the application provides an outage formula of skidding electronic decide and turn round erecting tool, including shell 1, elastic clutch portion and the mechanism of skidding, be equipped with continuous automatically controlled portion 2, power portion 3 and gear train 4 in proper order in the shell 1, this embodiment leaves the zhong, and power portion 3 is brushless motor and with gear train 4 coaxial coupling.

As shown in fig. 1, the elastic clutch portion includes a clutch lever 5, a clutch sleeve 6, a shaft sleeve 7 and a torque spring member 8, and the shaft sleeve 7 is fixedly inserted into one end of the housing 1 far away from the electric control portion 2. The clutch rod 5 axially penetrates through the shaft sleeve 7, one end of the clutch rod 5 is coaxially connected with the gear set 4 through a transmission shaft 53, and the other end of the clutch rod 5 is coaxially connected with a fixed torsion head 51.

As shown in fig. 1, the clutch sleeve 6 is slidably sleeved on the clutch lever 5, the clutch lever 5 is fixedly connected with a mounting bracket 52 positioned in the housing 1, the mounting bracket 52 is positioned on one side of the clutch sleeve 6 departing from the gear set 4, and the torque spring member 8 is sleeved on the clutch lever 5 and is extruded between the clutch sleeve 6 and the mounting bracket 52.

As shown in fig. 1, the slip mechanism includes a slip portion 9, a hall switch 10, and a magnet 11, and the slip portion 9 is drivingly connected between the clutch sleeve 6 and the transmission shaft 53. The hall switch 10 and the magnet 11 are oppositely arranged in the shell 1, and the hall switch 10 is connected with the circuit board of the electric control part 2 in a quick-plug manner. Furthermore, the housing 1 is provided with a start button 12, the start button 12 is electrically connected with the electric control part 2, and the hall switch 10 is in a standby state when the start button 12 is pressed.

In addition, the clutch sleeve 6 is located in the magnetic field range of the magnet 11, when the torque reaches, the slipping part 9 slips to drive the clutch sleeve 6 to move away from the magnet 11, at the moment, the axial distance between the clutch sleeve 6 and the magnet 11 is changed, the Hall switch 10 acts, the electric torque-fixing assembling tool is powered off, and compared with mechanical power-off, the electric torque-fixing assembling tool is not easy to damage.

When the self-tapping screw needs to be screwed down, the part of the Hall switch 10 which is quickly inserted on the circuit board of the electric control part 2 is firstly pulled out, after the tool reaches the torque, the clutch sleeve 6 moves, the Hall switch 10 does not induce the change of the magnetic field, and the slipping impact is continuously carried out, so that the self-tapping screw is screwed down.

As shown in fig. 1 to 3, the slipping portion 9 includes a driving slider 91, a mounting sleeve 92 and a driving ball 93, the mounting sleeve 92 is coaxially fixed to one end of the clutch lever 5 close to the transmission shaft 53, and the mounting sleeve 92 is located in the clutch sleeve 6. The beating slider 91 is positioned in the mounting sleeve 92, and the transmission shaft 53 penetrates through the beating slider 91 and is fixedly connected with the sliding block 91.

As shown in fig. 1 to 3, in the present embodiment, three driving balls 93 are movably embedded in the mounting sleeve 92 and are arranged at equal intervals along the circumferential direction of the mounting sleeve 92, and each driving ball 93 abuts between the side wall of the striking block 91 and the inner wall of the clutch sleeve 6. In order to limit the driving ball 93, the transmission shaft 53 is sleeved with a limiting ring 13, and the limiting ring 13 is located in the mounting sleeve 92 and abuts against the driving ball 93.

When the torque is reached, the torque fixing head 51 is subjected to resistance and transmitted to the clutch lever 5, and the mounting sleeve 92 stops rotating. At this moment, the transmission shaft 53 continues to transmit power to the slipping block 91, the slipping block 91 rotates to apply thrust to the driving ball 93, the driving ball 93 moves away from the transmission shaft 53 after being stressed, at this moment, the driving ball 93 applies driving force to the clutch sleeve 6, and the clutch sleeve 6 slides away from the transmission shaft 53 to complete slipping.

As shown in fig. 1, the circuit board of the electronic control unit 2 is preferably provided with a forward/reverse button 14, and the forward/reverse button 14 implements forward rotation and reverse rotation of the power unit 3, thereby implementing forward rotation and reverse rotation of the fixed-torque head 51. In order to improve the safety factor, a temperature control switch 15 is further arranged on the circuit board of the electric control part 2, when the temperature is too high, the electric fixed-torque assembling tool is automatically powered off, and the condition that the electric control part 2 breaks down due to continuous work at high temperature is avoided.

The application has the implementation principle that: the start switch is pressed and the hall switch 10 is in a standby state. The power part 3 is linked with the elastic clutch part to rotate through the gear set 4 and the slip mechanism, when the torque is reached, the fixed torque head 51 is subjected to resistance and is transmitted to the clutch lever 5, and the mounting sleeve 92 stops rotating. At this time, the transmission shaft 53 continues to transmit power to the sliding block 91, the sliding block 91 rotates to apply thrust to the driving ball 93, and the driving ball 93 moves towards the transmission shaft 53 after being stressed, so that the clutch sleeve 6 is pushed to slide away from the transmission shaft 53. The axial distance between the clutch sleeve 6 and the magnet 11 is changed, the Hall switch 10 acts, and the electric fixed-torque assembling tool is powered off, so that the electric fixed-torque assembling tool is not easy to damage compared with mechanical power-off. When the self-tapping screw needs to be screwed down, the part of the Hall switch 10 which is quickly inserted on the circuit board is firstly pulled out, after the tool reaches the torque, the clutch sleeve 6 moves, the Hall switch 10 does not sense the change of the magnetic field any more, and then the slipping impact is continuously carried out, so that the self-tapping screw is screwed down.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. The power-off slipping type electric fixed-torque assembling tool is characterized by comprising a shell and an elastic clutch part provided with a clutch rod, wherein an electric control part, a power part and a gear set are sequentially connected in the shell, the clutch rod is in transmission connection with the gear set through a transmission shaft, and a clutch sleeve is slidably sleeved on the clutch rod;

still include the mechanism of skidding, the mechanism of skidding including beat the sliding part, set up relatively in hall switch and magnet in the shell, hall switch with the circuit board of automatically controlled portion inserts soon and is connected, the separation and reunion cover is located the magnetic field scope of magnet, beat the sliding part transmission connect in the transmission shaft with between the separation and reunion cover, when the moment of torsion reaches, the transmission shaft continues right beat the sliding part and applys power, it orders about after receiving the resistance to beat the sliding part the separation and reunion cover deviates from the magnet motion, hall switch senses outage behind the magnetic field change of magnet.

2. The power-off slipping type electric fixed-torque assembly tool according to claim 1, wherein the slipping part comprises a slipping block, a mounting sleeve and a driving ball movably embedded in the mounting sleeve, the mounting sleeve is arranged in the clutch sleeve and is coaxially connected with the clutch rod, the transmission shaft is coaxially connected with a slipping block positioned in the mounting sleeve, the driving ball is squeezed after the driving block rotates, and the driving ball moves back to the transmission shaft to push the clutch sleeve to slip.

3. An electric power-off slipping type electric torque fixing assembling tool according to claim 2, wherein at least two of the driving balls are arranged on the mounting sleeve at equal intervals.

4. The power-off slipping type electric torque fixing assembly tool according to claim 2, wherein a limiting ring is sleeved on the transmission shaft and located in the mounting sleeve, and the driving ball is abutted to the limiting ring.

5. The power-off slipping type electric torque-fixing assembling tool is characterized in that the elastic clutch portion further comprises a shaft sleeve and a torque spring part, the shaft sleeve is connected with the end portion of the shell, the clutch rod penetrates through the shaft sleeve along the axial direction of the shaft sleeve, the end portion, far away from the transmission shaft, of the clutch rod is connected with a torque-fixing head, a mounting frame is fixedly sleeved on the clutch rod, and the torque spring part is extruded between the mounting frame and the clutch sleeve.

6. The power-off sliding type electric fixed-torque assembly tool according to claim 2, further comprising a forward and reverse button and a start button, wherein the start button is arranged on the shell, and the forward and reverse button is arranged on a circuit board of the electric control part.