CN102407518A - Clutch structure of screw locking tool - Google Patents

Abstract

The invention relates to a clutch structure of a screw locking tool, which is characterized by at least comprising: the body is provided with a combining ring enclosure to be combined with the electric tool, the body is provided with a containing chamber for containing the clutch assembly, and one end of the containing chamber is provided with a bolt hole; the clutch component is arranged in the containing chamber of the body and is provided with a bolt rod seat, the bolt rod seat is provided with a bolt rod groove and a central shaft groove, and the central shaft groove is arranged as a central shaft; the bolt rod seat is provided with a positioning steel ball hole and is positioned at the central shaft groove, the positioning steel ball hole can be used for positioning a steel ball, and the positioning steel ball is ejected outwards by using the central shaft so as to protrude out of the outer side of the part of the positioning steel ball groove; the clutch assembly is provided with a driven wheel, the driven wheel is arranged in the body containing chamber and is positioned by the shockproof assembly, the driven wheel is provided with an inclined long hole, after the central shaft is combined with the central shaft groove, the long hole is used for arranging the positioning steel ball, the bolt rod seat and the ratchet wheel can correspondingly operate, the clutch effect is automatically generated when the screw locking tool locks the screw to be positioned, and the driving wheel and the driven wheel are prevented from being worn and generating noise.

Description

Clutch structure of screw locking tool

technical field

The present invention relates to a clutch structure of a screw locking tool, especially a clutch assembly is provided in the body, and the aforementioned clutch assembly is used to allow the corresponding operation of the bolt seat and the driven wheel to lock the screw in the screw locking tool. It is a screw-locking tool that automatically produces a clutch effect when it is positioned, and avoids wear and tear of the driving wheel and the driven wheel and makes noise.

Background technique

According to conventional electric tools, such as China Taiwan Invention Patent No. I293594 "hand-held fastener driving tool", as shown in the exploded view of the tool in Figure 10, a motor 172 is included in the housing part 120, and the motor 172 is connected with a gear The box 174 is in mechanical communication, and the gearbox 174 is in mechanical communication with a clutch 176 . A drive shaft 126 is in mechanical communication with the drive bit 198 using the collet 196 . Also as shown in FIG. 14 , the drive shaft 126 is attached to the driven portion 250 of the clutch 176 . A recess 252 is included in the chuck 196 that receives the drive bit 198 . It should be noted that, in various embodiments of the present invention, the driven part 250 of the clutch 176 is not always in direct contact with the driving part 248 of the clutch (please refer to FIG. 10 ). Typically, the tool must not be actuated until the driver and driven parts of the clutch 176 are actually engaged. That is to say, this kind of known clutch only utilizes the corresponding operation of the driven part 250 of the drive shaft 126, and after locking the screw to a certain degree, it can be automatically separated, but this kind of known person, the power tool locking screw When reaching a certain depth, it is impossible to separate the bolt rod from the screw in time. Therefore, the end of the bolt rod will have a jumping contact with the screw joint groove, which will not only cause noise, but also easily wear the bolt rod.

Contents of the invention

The purpose of the present invention is to provide a clutch structure of the screw locking tool, when the screw locking tool locks the screw to a set depth, the power of the screw locking tool and the bolt can be separated immediately.

The object of the present invention is achieved in this way, a clutch structure of a screw locking tool, a clutch structure of a screw locking tool, is characterized in that it at least includes: a body, which is provided with a coupling ring to be combined with an electric tool, the aforementioned body A chamber is provided to accommodate the clutch assembly, and one end of the chamber is provided with a bolt hole; the clutch assembly is arranged in the chamber of the body, the clutch assembly is provided with a bolt seat, and the bolt seat is provided with a bolt groove and The central shaft groove, the aforementioned central shaft slot must be set for the central shaft; the aforementioned bolt seat sets the positioning steel ball hole, and is located at the aforementioned central shaft slot, the aforementioned positioning steel ball hole can be set for the positioning steel ball, and the positioning steel ball is positioned using the aforementioned central shaft. Push out outwards to protrude from the outside of the part of the positioning steel ball groove; the aforementioned clutch assembly is provided with a driven wheel, the aforementioned driven wheel is arranged in the aforementioned body chamber, and is positioned by an anti-vibration component, and the aforementioned driven wheel is provided with an obliquely long hole. After the aforementioned central shaft is combined with the central shaft groove, use the aforementioned elongated hole to set the aforementioned positioning steel ball, so that the bolt seat and the ratchet gear can operate correspondingly, and when the screw locking tool locks the screw to the position, the clutch effect is automatically generated , to avoid the wear and tear of the driving wheel and the driven wheel and make noise.

The present invention mainly uses the corresponding operation of the ratchet gear of the clutch assembly and the bolt seat. When the screw locking tool locks the screw to a certain depth, the clutch structure can be used to immediately separate the power of the screw locking tool from the bolt bar. , and release the torque of the bolt.

The clutch structure of the screw locking tool of the present invention is mainly provided with a bolt seat on the clutch assembly, and a central shaft groove is provided on the aforementioned bolt seat to set the central axis, and the positioning steel ball is pushed out by using the aforementioned central shaft to allow The positioning steel ball can protrude from the outer part of the positioning steel ball groove, and is accommodated in the oblique elongated hole of the ratchet gear of the aforementioned clutch assembly. When the screw locking tool locks the screw to a certain depth, the elasticity of the driving wheel can be used. The assembly pushes out the driven wheel, causing it to move backwards by the linear distance obliquely to the elongated hole, the driving wheel and the driven wheel are instantly separated, and the torsion force of the bolt is released.

The purpose of the present invention can also be achieved in this way, a clutch structure of a screw locking tool, which is characterized in that it at least includes: a body with a coupling ring to be combined with the electric tool, the aforementioned body is provided with a chamber to accommodate the clutch assembly, One end of the aforementioned chamber is also provided with a bolt hole; the clutch assembly is located in the chamber of the aforementioned body, the aforementioned clutch assembly is provided with a bolt seat, and the aforementioned bolt seat is provided with a bolt groove and a central axis groove, and the central axis groove is connected to the aforementioned The bolt groove is set in the opposite direction, the aforementioned central shaft groove sets the positioning steel ball hole, and the aforementioned positioning steel ball hole can also be set for the positioning steel ball, and the positioning steel ball is pushed out by the aforementioned central shaft, so that the positioning steel ball can protrude from the positioning position. Part of the outer side of the steel ball groove; the aforementioned clutch assembly is provided with a driven wheel, and the driven wheel is arranged in the aforementioned body chamber, and is positioned by an anti-vibration component. After the combination, use the elongated holes to set the aforementioned positioning steel balls; in this way, when the locking screw of the electric tool reaches the set depth, the driven wheel of the clutch component is pushed out by the elastic component of the driving wheel, and causes the positioning steel ball to be in the position of the driven wheel. The oblique elongated hole moves from position B to position A to produce a clutch effect, which can prevent the bolt rod from continuing to drive the screw, causing wear on the driving wheel and the driven wheel, and then use the elastic component of the electric tool to push the center shaft outward, Prevent the power tool's power source from continuing to actuate the clutch assembly.

The advantage of the present invention is: when the screw locking tool locks the screw to the set depth, the structure of the present invention can immediately separate the power of the screw locking tool from the bolt rod, release the torque of the bolt rod, and automatically produce the clutch effect , to avoid the wear and tear of the driving wheel and the passive wheel and make noise. And because the torsion force of the bolt has been released, there is no forced driving of the screw, which can also prevent the bolt from being worn or twisted, and can improve the service life of the electric tool and the bolt.

Description of drawings

Fig. 1 is a sectional view of the clutch structure of the present invention.

Fig. 2 is a partial sectional view of the clutch structure of the present invention.

Figure 3 is an exploded view of the clutch structure of the present invention.

Fig. 4 is a perspective view of the driven wheel of the clutch structure of the present invention.

Fig. 5 is a cross-sectional view along line A-A of Fig. 4 .

Fig. 6 is a view of a standby state of the power tool.

Fig. 7 is a state diagram of the bolt seat and the driven wheel when the power tool in Fig. 6 is in a standby state.

Fig. 8 is a view before locking the electric tool.

Fig. 9 is a state diagram of the bolt seat and the driven wheel when the power tool in Fig. 8 is in the state.

Fig. 10 is a view of the power tool before locking the access depth.

Fig. 11 is a state diagram of the bolt seat and the driven wheel when the power tool in Fig. 10 is in the state.

Fig. 12 is a view of the power tool locked to a predetermined depth.

Fig. 13 is a state diagram of the bolt seat and the driven wheel when the power tool in Fig. 12 is in the state.

Fig. 14 is a view when the electric tool lock reaches the set depth.

Fig. 15 is a state diagram of the bolt seat and the driven wheel when the electric tool in Fig. 14 is in a state.

Explanation of main component symbols

Body 1, Combination ring 10, Internal thread 100,

Containment chamber 11, bolt seat hole 12

Electric tool 2, front collar 20, driving wheel 21,

Teeth 210, Elastic component 22, Locking depth adjustment component 23

Clutch assembly 3, bolt seat 30, bolt groove 300,

Ball groove 301, ball 302, central shaft groove 303,

Central shaft 31, positioning steel ball hole 304, positioning steel ball 32,

Passive wheel 33, surround 330, rear wall 331,

Receptacle 332, oblique elongated hole 333, large ring circumference 334,

Teeth 335, anti-vibration components 34, anti-vibration rubber sleeves 340,

Shockproof collar 341,

Bolt 4

screw 5

Detailed ways

In order to enable your examiners to fully understand the present invention, the explanation is as follows according to the accompanying drawings: As shown in Figures 1 to 5, the clutch structure of the screw locking tool of the present invention at least includes: a main body 1, a joint ring 10, the aforementioned The coupling ring 10 is provided with an internal thread 100 to combine with the front collar 20 of the electric tool 2 (as shown in Figure 6), so that the present invention can cooperate with the operation of the electric tool. , the other end of the aforesaid chamber 11 is provided with a bolt seat hole 12, which is provided for the bolt seat of the clutch assembly 3; (as shown in Figure 1-3), the aforementioned bolt seat 30 is also provided with a bolt groove 300, and a ball groove 301 is provided in the bolt groove 300, so that the ball 302 is set, and the bolt 4 extends into the aforementioned bolt groove After 300, the ball 302 must be used to clamp the bolt 4, so that the bolt 4 can be combined with the bolt seat 30 (as shown in Figure 6), and the aforementioned bolt 4 can be used to drive the screw 5 to perform the locking action; Seat 30 is provided with central axis groove 303, and central axis groove 303 and aforementioned bolt bar groove 300 are reversely set, and inner diameter is different, and aforementioned central axis groove 303 must be set for central axis 31; Each positioning steel ball hole 304, each positioning steel ball hole 304 is suitable for the aforementioned central axis groove 303, and penetrates outward from the central axis groove 303 to the outside, the aforementioned positioning steel ball hole 304 can be set for the positioning steel ball 32, and utilizes the aforementioned central axis 31 After being set in the aforementioned central axis groove 303, the positioning steel ball 32 is pushed out, so that the positioning steel ball 32 can protrude from a part of the positioning steel ball hole 304 outside (as shown in FIG. 1 ).

The aforementioned clutch assembly 3 is provided with a driven wheel 33 (as shown in Figure 3-5), the driven wheel 33 is arranged in the chamber 11 of the aforementioned body 1, and an anti-vibration assembly 34 is provided between the driven wheel 33 and the chamber 11, the anti-vibration assembly 34 includes a shockproof rubber sleeve 340 and a shockproof collar 341. The shockproof rubber sleeve 340 is arranged on the outer side of the surrounding 330 of the driven wheel 33, and the shockproof collar 341 is arranged on the rear wall surface 331 of the driven wheel 33, and utilizes the aforementioned shockproof assembly 34 the driven wheel 33 is positioned, and produces suitable damping effect, the surround 330 of aforementioned driven wheel 33 is provided with the accommodation groove 332, is set for one end of aforementioned bolt seat 30, and aforementioned surround 330 is provided with several from aforementioned accommodation. The oblique elongated holes 333 (as shown in Fig. 5 ) through which the grooves 332 penetrate outwards, after the aforementioned central shaft 31 and the central shaft groove 303 are combined, use these elongated holes 333 to set the aforementioned positioning steel balls 32, so that the bolt The rod seat 30 and the driven wheel 33 operate correspondingly. The aforementioned driven wheel 33 is provided with a large ring 334, and several teeth 335 are set on one side of the aforementioned large ring 334 to match the teeth 210 of the driving wheel 21 of the electric tool 2. For operation, the above-mentioned drive wheel 21 is provided with an elastic component groove 211 for setting the elastic component 22 to cooperate with the operation of the aforementioned central shaft 31 .

In this way, after the present invention is combined with the electric tool 2, as shown in FIGS. The opening force must push the aforementioned center shaft 31 outwards to the position, and allow the positioning steel ball of the clutch assembly 3 to be located at the A position of the oblique elongated hole 333 of the driven wheel 33. Even if the power source of the electric tool is activated, it will Can't drive bolt bar 4 to operate.

When the electric tool 2 is ready to lock the screw 5, as shown in Figures 8 and 9, after the user pushes the screw 5 against the workpiece 6, the bolt rod 4 will move backward, and the central axis 31 and the bolt rod will press the power tool 2. The elastic component 22 shrinks, so that the tooth 335 of the driven wheel 33 can engage with the tooth 210 of the driving wheel 21 of the electric tool 2, and the positioning steel ball 32 of the clutch component 3 is suitable for the oblique elongated hole of the driven wheel 33 333 at the B position, at this time, as long as the user drives the power source of the electric tool, the bolt rod 4 can be driven to operate, and the screw locking work will be performed until the electric tool 2 locks the screw 5 to a depth close to the set depth, as shown in Figure 10 and 11, the positioning steel ball 32 of the clutch assembly 3 is kept at the B position of the oblique elongated hole 333 of the driven wheel 33 .

When the locking screw 5 of the electric tool 2 reaches the set depth, the locking depth adjustment assembly 23 of the electric tool (which belongs to the known technology and will not be described in detail) no longer advances. At this time, the driven wheel of the clutch assembly 3 and the electric tool 2 The driving wheel 21 is at the position to be disengaged, and the positioning steel ball 32 is at the B position of the oblique elongated hole 333, as shown in Figures 12 and 13, because the driven wheel has no power to drive, and the central shaft 31 is affected by the elasticity of the electric tool 2 When the component 22 is ejected, the position of the driving wheel 21 and the bolt seat 30 is fixed at this time, and only the driven wheel 33 is separated from the driving wheel immediately, and the positioning steel ball is now at the position A of the oblique elongated hole 333, as shown in Figures 14 and 15 In this way, the wear and noise of the driving wheel and the driven wheel can be avoided due to inaccurate disengagement. When the driven wheel is indeed separated from the driving wheel, the central axis of the driven wheel is pushed out by the elastic component of the electric tool, so that the driven wheel returns to the initial position. It is the action principle of the whole clutch system.

Claims (10)

1. A clutch structure of a screw locking tool, characterized in that it comprises at least: The main body is provided with a connecting ring to be combined with the electric tool. The aforementioned main body is provided with a chamber for accommodating the clutch assembly, and one end of the aforementioned chamber is provided with a bolt hole; The clutch assembly is arranged in the chamber of the aforementioned body, the aforementioned clutch assembly is provided with a bolt seat, the aforementioned bolt seat is provided with a bolt groove and a central shaft groove, and the aforementioned central shaft groove is provided for the central shaft; the aforementioned bolt seat is provided with a positioning steel ball The hole is located at the aforementioned central shaft groove, the aforementioned positioning steel ball hole can be set for the positioning steel ball, and the aforementioned central shaft is used to push the positioning steel ball outward to protrude from the outside of the part of the positioning steel ball groove; the aforementioned clutch assembly is provided with a driven wheel , the aforementioned driven wheel is arranged in the aforementioned body chamber, and is positioned by an anti-vibration component, and the aforementioned driven wheel is provided with an oblique elongated hole. After the aforementioned central shaft is combined with the central shaft groove, the aforementioned elongated hole is used to set the aforementioned positioning steel ball, The bolt seat and the ratchet gear can be operated correspondingly. When the screw locking tool locks the screw to the position, the clutch effect is automatically generated to avoid the wear and tear of the driving wheel and the driven wheel and make noise. 2. The clutch structure of the screw locking tool according to claim 1, characterized in that the coupling ring of the body is provided with internal threads for coupling with the front collar of the electric tool. 3 . The clutch structure of the screw locking tool according to claim 1 , wherein the central shaft groove of the clutch assembly is set opposite to the bolt groove. 4 . 4. The clutch structure of the screw locking tool according to claim 1, characterized in that the driven wheel of the clutch assembly is provided with a ring, and the ring is provided with a container for one end of the bolt rod. 5. A clutch structure of a screw locking tool, characterized in that it at least includes: The main body is provided with a connecting ring to be combined with the electric tool. The aforementioned main body is provided with a chamber for accommodating the clutch assembly, and one end of the aforementioned chamber is provided with a bolt hole; The clutch assembly is arranged in the chamber of the aforementioned body, the aforementioned clutch assembly is provided with a bolt seat, the aforementioned bolt seat is provided with a bolt groove and a central axis groove, the central axis groove and the aforementioned bolt groove are oppositely arranged, and the aforementioned central axis groove Set the positioning steel ball hole, the aforementioned positioning steel ball hole can also be set for the positioning steel ball, and use the aforementioned central shaft to push the positioning steel ball outward, so that the positioning steel ball can protrude from the outside of the positioning steel ball groove; the aforementioned clutch assembly is provided with a passive Wheel, the driven wheel is set in the aforementioned body chamber, and is positioned by the anti-vibration component. The aforementioned driven wheel is provided with oblique elongated holes, and after the aforementioned central shaft is combined with the central shaft groove, these elongated holes are used for the aforementioned positioning. Steel ball setting; In this way, when the locking screw of the electric tool reaches the set depth, the driven wheel of the clutch component is pushed out by the elastic component of the driving wheel, and the oblique elongated hole for positioning the steel ball on the driven wheel moves from position B to position A. The clutch action can prevent the bolt rod from continuing to drive the screw, causing the wear of the driving wheel and the driven wheel, and then use the elastic component of the electric tool to push the central shaft outward to prevent the power source of the electric tool from continuing to drive the clutch assembly. 6 . The clutch structure of the screw locking tool according to claim 5 , wherein the coupling ring of the body is provided with internal threads for coupling with the front collar of the electric tool. 7 . 7. According to the clutch structure of the screw locking tool according to claim 5, it is characterized in that the bolt seat of the clutch assembly is provided with a bolt groove, and a ball groove is arranged in the aforementioned bolt groove, so that the ball is set, and the bolt is extended. After being set into the aforementioned bolt groove, the ball must be used to fasten the bolt, so that the bolt can be combined with the bolt seat. 8. The clutch structure of screw locking tool according to claim 5, characterized in that the bolt seat of the clutch assembly is provided with several positioning steel ball holes, and each positioning steel ball hole penetrates outward from the central shaft groove to the outside. 9. The clutch structure of the screw locking tool according to claim 5, characterized in that the shockproof assembly of the clutch assembly includes a shockproof rubber sleeve and a shockproof collar, the shockproof rubber sleeve is arranged on the outer side of the driven wheel, and the shockproof collar Then it is arranged on the rear wall of the driven wheel. 10. The clutch structure of the screw locking tool according to claim 5, characterized in that the driven wheel is provided with a large ring, and several teeth are arranged on one side of the aforementioned large ring to match the teeth of the driving wheel of the electric tool. operate.

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