Multi-power output tightening device

Abstract

The application provides a multi-power output tightening device, relates to the technical field of mechanical tools, and comprises a gear box mechanism, an input port is arranged in the middle of the gear box mechanism, and horizontal moving mechanisms are detachably connected around the gear box mechanism, the horizontal moving mechanisms comprise a horizontal frame, a worm and a worm wheel, the worm is in power connection with the gear box mechanism shaft, a wheel frame is slidably connected to the horizontal frame, and the worm wheel is in rotary connection with the wheel frame.In the application, the worm wheel can move axially along the worm to achieve infinite radial adjustment through the lateral movement of the wheel frame where the worm wheel is located, when the horizontal frame is locked by a locking mechanism, an external screw wrench can drive the worm to rotate through the gear box mechanism, thereby driving the worm wheel to rotate, thereby driving the corresponding wrench mechanism to rotate to realize a tightening action, achieving the effect of one input and multiple outputs, improving work efficiency, and the output spacing is adjustable, improving the universality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical tools, in particular to a multi-power output tightening device. BACKGROUND

[0002] The screw tightening gun is widely used in the assembly of parts in the manufacturing industry such as automobiles, motorcycles, ships, aircraft and home appliances. At present, a tightening gun can only output one power, and two screws need to be tightened on the connecting rod of the engine, which requires two operations, affecting the assembly efficiency. SUMMARY

[0003] In order to overcome the existing deficiencies, the embodiments of the present application provide a multi-power output tightening device which can solve the problems mentioned in the background art.

[0004] The technical scheme adopted by the embodiments of the present application to solve the technical problems is: a multi-power output tightening device, comprising a gear box mechanism, an input port is arranged in the middle of the gear box mechanism, a horizontal moving mechanism is detachably connected around the gear box mechanism, the horizontal moving mechanism comprises a horizontal frame, a worm and a worm gear, the worm is in power connection with the gear box mechanism shaft, a wheel frame is slidably connected on the horizontal frame, the worm gear is in rotary connection with the wheel frame, a locking mechanism is arranged on the wheel frame, the worm gear is in engagement with the worm, an output port is formed in the worm gear, and a wrench mechanism is arranged on the output port.

[0005] In a specific embodiment, the gear box mechanism comprises a box body and a box cover, the box cover is in screw connection with the box body, and the horizontal frame is in screw connection with the box body and the box cover.

[0006] In a specific embodiment, the gear box mechanism further comprises a driving gear and a driven gear, the driving gear is in engagement with the driven gear, the driving gear and the driven gear are in rotary connection with the box body, and an internal hexagonal groove is formed in the driving gear and the driven gear.

[0007] In a specific embodiment, the worm is provided with a torque adjusting mechanism at one end, and the input end of the torque adjusting mechanism is provided with an external hexagonal socket which is inserted into the internal hexagonal groove of the driven gear.

[0008] In a specific embodiment, the wheel frame is in dovetail sliding connection with the horizontal frame, the locking mechanism is a sheep horn screw, the sheep horn screw is in screw connection with the wheel frame, and the sheep horn screw abuts against the horizontal frame.

[0009] In a specific embodiment, the wrench mechanism comprises a prismatic rod, and the prismatic rod is inserted into the worm gear.

[0010] In a specific embodiment, a spring is arranged between the prismatic rod and the worm gear, and the spring is sleeved on the prismatic rod.

[0011] In a specific embodiment, a spring is arranged between the prismatic rod and the worm gear, and the spring is sleeved on the prismatic rod.

[0012] In a specific embodiment, a spring is arranged between the prismatic rod and the worm gear, and the spring is sleeved on the prismatic rod.

[0013] In a specific embodiment, a handle is detachably connected to the gear box mechanism.

[0014] The advantages of the embodiments of the present application are as follows:

[0015] The lateral movement of the wheel frame in which the worm gear is arranged enables the worm gear to move axially along the worm shaft to achieve infinite radial adjustment. When the lateral frame is locked by the locking mechanism, the external screwdriver can drive the worm to rotate through the gear box mechanism, thereby driving the worm gear to rotate, and further driving the corresponding wrench mechanism to rotate to realize the tightening action, achieving the effect of one input and multiple outputs, improving the work efficiency, and the output spacing is adjustable, improving the versatility. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A multi-power output tightening device structure schematic diagram is provided for the embodiments of the present application.

[0017] Figure 2 A gear box mechanism and input port connection relationship structure schematic diagram is provided for the embodiments of the present application.

[0018] Figure 3 A lateral movement mechanism and wrench mechanism connection relationship structure schematic diagram is provided for the embodiments of the present application.

[0019] Figure 4 A wrench mechanism structure schematic diagram is provided for the embodiments of the present application.

[0020] In the figure: 10-gear box mechanism; 11-box body; 12-box cover; 13-driving gear; 14-driven gear; 20-lateral movement mechanism; 21-lateral frame; 22-worm; 23-worm gear; 24-wheel frame; 25-torsion adjustment mechanism; 26-sheep horn screw; 27-non-slip pattern; 28-tooth; 30-wrench mechanism; 31-prismatic rod; 32-spring; 33-spring pin; 34-sleeve wrench; 35-abutment; 40-input port; 50-handle. DETAILED DESCRIPTION

[0021] The technical solution in the embodiments of the present application is to solve the problems mentioned in the background art, and the general idea is as follows:

[0022] Please refer toFigures 1-4 The utility model provides a multi -power output's tightening device, including gear box mechanism 10, be provided with input 40 in the middle of gear box mechanism 10, gear box mechanism 10 around respectively detachable connection has horizontal shift mechanism 20, horizontal shift mechanism 20 includes crosspiece 21, worm 22 and worm wheel 23, worm 22 with gear box mechanism 10 axle power connection, crosspiece 21 slidingly connected with wheel frame 24, worm wheel 23 is connected with wheel frame 24 rotationally, wheel frame 24 is provided with locking mechanism, worm wheel 23 is engaged with worm 22, output is set up on worm wheel 23, and wrench mechanism 30 is set up on output. Among them, utilize the lateral movement of the wheel frame 24 where worm wheel 23 is located, so that worm wheel 23 can move axially along worm 22 to obtain infinite radial adjustment, when crosspiece 21 is locked by locking mechanism, the external screw wrench can be driven worm 22 rotates by gear box mechanism 10, in turn drive worm wheel 23 rotates, in turn drive corresponding wrench mechanism 30 rotates and realizes tightening action, realizes the effect of one input multiple output, improves work efficiency, and the output interval is adjustable, improves the versatility.

[0023] Please refer to Figures 1-4 Gear box mechanism 10 includes box 11 and lid 12, lid 12 is connected with box 11 by screw, crosspiece 21 is connected with box 11 and lid 12 by screw.Here, lid 12 is fixed on box 11 by screw, and screw holes are formed on box 11 and lid 12 for installing crosspiece 21, and a limiting clamping strip is arranged on lid 12 to be clamped in the opening of box 11, facilitating accurate installation, and the clamping strip also enables lid 12 to obtain horizontal support force from box 11, so that lid 12 and box 11 are more tightly connected.

[0024] Please refer to Figures 1-4 Gear box mechanism 10 further includes driving gear 13 and driven gear 14, driving gear 13 is engaged with driven gear 14, and driving gear 13 and driven gear 14 are rotationally connected with box 11, and internal hexagonal grooves are formed on driving gear 13 and driven gear 14.Here, the internal hexagonal groove on driving gear 13 is input 40, and a screw gun inputs power through the internal hexagonal groove to drive four driven gears 14 to rotate, thus, at most four power outputs can be obtained, in the embodiment, driving gear 13 and driven gear 14 are both conical gears to change the rotation direction, since worm 22 and worm wheel 23 have a speed reduction effect, the rotation speed is greatly reduced, therefore, driving gear 13 and driven gear 14 are configured as gears with different sizes to have a speed increasing effect, so as to compensate for the speed reduction effect of worm 22 and worm wheel 23 as much as possible, so that input 40 and wrench mechanism 30 maintain similar rotation speeds.

[0025] Please refer to Figures 1-4, worm 22 one end is provided with a torsion adjusting mechanism 25, the input end of torsion adjusting mechanism 25 is provided with an external hexagon and the internal hexagon groove of driven gear 14 is inserted. Here, the torsion adjusting mechanism 25 is commonly mechanical clutch type, including planetary gear set, clutch and adjusting ring, the clutch includes torsion spring and gear ring with protrusions, the gear ring is engaged with the planetary gear set, the torsion spring pushes the steel ball against the gear ring, by twisting the adjusting ring, the torsion spring can be compressed or released, so as to adjust the tightness of the steel ball against the gear ring, and then adjust the output torque, because the steel ball is dead on the protrusions of the gear ring, the gear ring remains stationary to support the planetary gear set to output torque outward, when the wrench mechanism 30 has been tightened and reaches the corresponding torque, the resistance of the planetary gear set increases, the steel ball cannot be dead on the gear ring, the gear ring will rotate with the planetary gear set, the rotation transmitted by the input port 40 is consumed on the gear ring, at the same time, the planetary gear set cannot output higher torque, in this application, in order to make the clutch work normally, the worm gear 23 can prevent the worm 22 from rotating, so a smaller reduction ratio is adopted to reduce the self-locking effect of the worm gear 23 and the worm 22 as much as possible, at the same time, the structure parameters of the worm gear 23 and the worm 22 can be improved, such as optimizing the tooth shape, adjusting the number of teeth, etc., so that the lead angle of the worm 22 is greater than the equivalent friction angle between the meshing teeth, thereby eliminating the self-locking effect. The torsion adjusting mechanism 25 is commonly used in a hand drill and belongs to the prior art, so it is not shown in detail in the drawings. When the cross frame 21 is installed on the gear box mechanism 10, the external hexagon of the head end of the worm 22 is inserted into the internal hexagon groove of the driven gear 14, realizing the power connection with clutch and also playing a positioning role, and then the cross frame 21 is installed on the box body 11 and the box cover 12 by using screws.

[0026] Please refer to Figures 1-4 , the wheel frame 24 is dovetail slidingly connected with the cross frame 21, the locking mechanism is a knurled screw 26, the knurled screw 26 is screwed with the wheel frame 24, and the knurled screw 26 is tightly pressed against the cross frame 21. Here, the distance of the adjusting wrench mechanism 30 is adjusted and then inserted into the screw to be tightened, and finally the knurled screw 26 is tightened. In this embodiment, the contact surfaces of the knurled screw 26 and the cross frame 21 are provided with anti-skid lines 27 to avoid loosening of the knurled screw 26, and the positions where the wheel frame 24 and the cross frame 21 are attached are provided with teeth 28. When the knurled screw 26 is loosened, a gap is formed between the wheel frame 24 and the cross frame 21, and the teeth 28 do not engage and can slide relatively. When the knurled screw 26 is tightened, the gap between the wheel frame 24 and the cross frame 21 disappears, and the teeth 28 on both sides engage with each other, forming a stable connection to avoid displacement of the wheel frame 24.

[0027] Please refer to Figures 1-4The wrench mechanism 30 comprises a prismatic rod 31 which is inserted into the worm wheel 23. Here, the inner hexagonal hole in the worm wheel 23 is the output port, and the prismatic rod 31 is directly inserted into the worm wheel 23, and rotates with the rotation of the worm wheel 23, thereby achieving power connection.

[0028] Please refer to Figures 1-4 The prismatic rod 31 and the worm wheel 23 are provided with a spring 32 which is sleeved on the prismatic rod 31. Here, the prismatic rod 31 directly penetrates the worm wheel 23, and the lower end of the prismatic rod 31 is provided with an abutment 35, one end of the spring 32 abuts against the crossbar 21, and the other end of the spring 32 abuts against the abutment 35, thereby maintaining the tendency of the prismatic rod 31 to move downward, so as to adapt to different heights of the screws to be tightened.

[0029] Please refer to Figures 1-4 The upper end of the prismatic rod 31 is provided with a spring pin 33 which abuts against the end face of the worm wheel 23. Here, the spring pin 33 is in the form of a triangular block, the tip of the spring pin 33 is in abutment with the prismatic rod 31, and the lower end of the spring pin 33 is provided with a spring piece which is connected with the prismatic rod 31, so that when the spring pin 33 maintains the state of being outwardly ejected, it can also be passively retracted into the prismatic rod 31. When the prismatic rod is inserted into the worm wheel 23 from the lower end to the upper end, the spring pin 33 is automatically retracted and then expanded to abut against the upper end face of the worm wheel 23, and the spring 32 abuts against the lower end face of the worm wheel 23, thereby maintaining the posture of the prismatic rod 31. The prismatic rod 31 can also be retracted to adapt to the height of the screws to be tightened. When it is necessary to replace the prismatic rod 31, the prismatic rod 31 can be pulled out by pinching the spring pin 33, so as to replace the prismatic rod 31 of different lengths.

[0030] Please refer to Figures 1-4 The lower end of the prismatic rod 31 is provided with a quick connector into which a sleeve wrench 34 is inserted. Here, the quick connector and the sleeve wrench 34 are both in the form of conventional structures, so as to adapt to the existing sleeve and improve the adaptability. The quick connector is provided with a spherical convexity which is elastic, so as to abut against the main sleeve wrench 34 and make it not easy to fall off.

[0031] Please refer to Figures 1-4 The handle 50 is detachably connected to the gear box mechanism 10. Here, when the gear box mechanism 10 is provided with three or fewer wrench mechanisms 30, one handle 50 can be added to the original mounting position, so as to increase the stability of hand holding.

[0032] The application uses: according to the number and position of screws to be tightened simultaneously, install the corresponding horizontal moving mechanism 20 and wrench mechanism 30, adjust the wrench mechanism 30 to align the screws to be tightened and insert, then tighten the monkey wrench 26 to fix the position of the wheel frame 24, then insert the external screw gun head into the input port 40 on the driving gear 13, the driving gear 13 drives the rotation of the four driven gears 14, and then drives the rotation of the corresponding screw rod, then drives the rotation of the worm gear 23, the worm gear 23 drives the edge rod 31 and then drives the rotation of the sleeve wrench 34, realizes the tightening action, when individual screws reach the specified torque in advance, power interruption is generated through the torque adjusting mechanism 25, to avoid the current screw from exceeding the torque and causing structural damage, while the other wrench mechanisms 30 can continue to rotate to ensure that each screw to be tightened can reach the specified torque.

[0033] In summary, the lateral movement of the wheel frame 24 where the worm gear 23 is located enables the worm gear 23 to move axially along the worm 22 to obtain infinite radial adjustment, when the cross frame 21 is locked by the locking mechanism, the external screw wrench can drive the worm 22 to rotate through the gear box mechanism 10, and then drive the worm gear 23 to rotate, and then drive the corresponding wrench mechanism 30 to rotate to realize the tightening action, realizing one input and multiple outputs, improving the work efficiency, and the output spacing is adjustable, improving the versatility.

[0034] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the application, and are not limited to the implementation. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and impossible to enumerate all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the application.

Claims

1. A multi-power output tightening device, characterized by, The gear box mechanism is provided with an input port, and the periphery of the gear box mechanism is detachably connected with a horizontal moving mechanism. The gear box mechanism comprises a box body and a box cover, the box cover is screw connected with the box body, and the horizontal frame is screw connected with the box body and the box cover. The wheel frame is dovetail slidingly connected with the horizontal frame, the locking mechanism is a knuckle screw, the knuckle screw is screw connected with the wheel frame, and the knuckle screw is abutted against the horizontal frame. The knuckle screw is tightened, the contact surfaces of the knuckle screw and the horizontal frame are provided with anti-skid lines, the position where the wheel frame and the horizontal frame are attached is provided with teeth, when the knuckle screw is loosened, a gap is formed between the wheel frame and the horizontal frame, the teeth are not engaged, and the wheel frame and the horizontal frame can slide relative to each other, when the knuckle screw is tightened, the gap between the wheel frame and the horizontal frame disappears, the teeth on both sides are engaged with each other, and stable connection is formed, so that the wheel frame is prevented from being displaced.

2. The multi-power output tightening device of claim 1, wherein, The gear box mechanism further comprises a driving gear and a driven gear, the driving gear is engaged with the driven gear, the driving gear and the driven gear are rotatably connected with the box body, and the driving gear and the driven gear are both provided with an internal hexagonal groove.

3. The multi-power output tightening device of claim 2, wherein, One end of the worm is provided with a torque adjusting mechanism, and the input end of the torque adjusting mechanism is provided with an external hexagonal which is inserted into the internal hexagonal groove of the driven gear.

4. The multi-power output tightening device of claim 1, wherein, The wrench mechanism comprises a prong, and the prong is inserted into the worm.

5. The multi-power output tightening device of claim 4, wherein, A spring is arranged between the prong and the worm, and the spring is sleeved on the prong.

6. The multi-power take-off tightening device of claim 5, wherein, An elastic pin is arranged on the upper end of the prong, and the elastic pin is abutted against the end surface of the worm.

7. The multi-power take-off tightening device of claim 6, wherein, A quick connector is arranged on the lower end of the prong, and a sleeve wrench is inserted into the quick connector.

8. The multi-power take-off tightening device of claim 7, wherein, A handle is detachably connected with the gear box mechanism.

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