TWM591028U - Nail clamp driving device of electric C-type nail gun - Google Patents

Abstract

A nail driving device for an electric C-type nail gun includes a base, a push rod group, and a driving group. The push rod group is axially movable on the base and includes a rod body and a guide block. The guide block is fixed on the rod body and includes a guide slot; the drive group includes an output shaft With a swing arm, the output shaft is perpendicular to the axial direction of the rod body, one end of the swing arm is connected to the output shaft, and the other end is provided with a limit block, the limit block is provided in the guide groove of the guide block . If the output shaft rotates 180 degrees, it can drive the push rod group to move the swing radius of the swing arm twice the linear distance.

Description

Nail driving device of electric C-type nail gun

The present invention relates to an electric C-type nail gun, in particular to an electric C-type nail gun nail driving device.

Please refer to FIG. 10, the conventional nail drive mechanism of the electric C-type nail gun mainly includes an electric motor 91, a screw 92, and a spreader wheel set 93 coupled to the front end of the screw 92, and the screw 92 is driven by the electric motor 91 Linear displacement, which drives the front and rear displacement of the stretcher wheel set 93. The stretcher wheel set 93 is disposed between the two clamping pieces 951 of the clamping nozzle 95. When the stretcher wheel set 93 moves backward, the stretcher two clamps The trailing end of the piece 951 drives the clamping nozzle 95 to perform the clamping action, and the C-shaped nails placed in the clamping nozzle 95 are bundled into a ring shape to achieve the clamping effect of the hoop. When moving forward, the jaw 95 is opened, and the next C-shaped nail is pushed into the jaw 95 at the same time.

However, when the helical motion of the screw 92 is used to convert the rotary motion of the electric motor 91 into a linear motion, the lead of the screw 92 is affected. The screw 92 usually needs to rotate a large number of turns to drive the stretcher wheel set 95 to move backward and clamp When the trailing end of the piece 951 drives the pinch nip 95 to engage, and the spreader wheel set 93 moves forward, the screw 92 needs to be reversed, so that the efficiency of converting the rotary motion of the electric motor 91 into linear motion is low, and needs to be improved.

In view of this, the main purpose of the present invention is to provide a nail driving device for an electric C-type nail gun, which utilizes a swing-arm mechanism to improve the efficiency of converting a rotary motion into a linear motion, thereby making the jaw of the electric C-type nail gun Fast clamping action.

In order to achieve the above purpose, the nail drive device of the electric C-type nail gun provided by the present invention includes A base A push rod group is axially movable on the base, the push rod group includes a rod body and a guide block, the rod body is axially movable on the base, and the guide block is fixed Located on the rod body, the guide block includes a guide groove that is perpendicular to the axial direction of the rod body; and A driving group is fixed on the base, and includes an output shaft and a swing arm, the output shaft is perpendicular to the axial direction of the rod body of the push rod group and the guide groove of the guide block, and the swing arm One end is connected to the output shaft, the other end of the swing arm is provided with a limit block, and the limit block is set in the guide groove of the guide block.

Using the above technical features, when the output shaft of the drive group rotates, the swing arm is driven to pivot, and at the same time, the limit block slides in the guide groove of the guide block and pushes the guide block, which forces the push rod group to perform the shaft To displacement. Therefore, the output shaft only needs to rotate 180 degrees to drive the push rod group to move the linear distance that is twice the length of the swing radius of the swing arm, so that the push rod group can quickly move axially and improve the efficiency of converting rotary motion into linear motion. Furthermore, the clamping mouth of the electric C-type nail gun can be quickly clamped.

Please refer to FIG. 1, for an embodiment of an electric C-type nail gun equipped with a nail driving device 20 provided by the present invention, the electric C-type nail gun mainly includes a main housing 10, a nail driving device 20, A clamping nozzle 50, and a nail feeding mechanism 60, wherein the clamping nozzle 50 is installed at the front end of the main housing 10, and the clamping nozzle 50 includes two clamps that are relatively pivotally disposed at the front end of the main housing 10 Holder 51; the nail feeding mechanism 60 is installed on one side of the main housing 10, a plurality of C-shaped nails are placed in the nail feeding mechanism 60, and used to push the C-shaped nails into the jaw 50, the nail feeding mechanism 60 can be an existing one, and its structure is not described here.

Please refer to FIGS. 1 to 3, the clip driving device 20 is installed in the main housing 10 to drive the two clips 51 to pivot in opposite directions, so that the clip nozzle 50 performs a clip action; The nail driving device 20 includes a base 21, a push rod group 30 and a driving group 40.

The base 21 is fixed in the main housing 10, or the base 21 may be directly formed in the main housing 10. The push rod group 30 is axially movable on the base 21. The push rod group 30 includes a rod body 31, a guide block 33 and a spreader wheel group 35. The rod body 31 is axially movable Set on the base 21, please refer to FIG. 6, a plurality of sleeves 212 can be arranged in the base 21 along the axial direction of the rod body 31, and the rod body 31 can be threaded through the sleeves 212 for lifting The stability of the axial movement of the push rod group 30; in this embodiment, the number of the sleeve 212 is two, and they are respectively provided at opposite ends of the base 21.

Please refer to FIG. 2 to FIG. 6, the guiding block 33 is fixed on the rod body 31, wherein the rod body 31 is radially recessed with a receiving portion 313, and the guiding block 33 is disposed in the receiving portion 313, The guide block 33 is fixed to the rod body 31 by a plurality of fastening members 335 and a plurality of pins 336; the guide block 33 includes a guide groove 331, the guide groove 331 is perpendicular to the axis of the rod body 31 The opposite ends of the guide groove 331 may be located on the radial opposite sides of the rod body 31, or the distance between one end of the guide groove 331 and the rod body 31 is shorter than that of the other end and the rod body 31 Preferably, the guide groove 331 is a straight groove perpendicular to the axial direction of the rod body 31.

Please refer to FIG. 1 to FIG. 3, the expansion wheel set 35 is coupled to one end of the rod body 31 and is located between the two clamping pieces 51 of the clamping nozzle 50.

Please refer to FIG. 2 to FIG. 6, the driving group 40 is fixed on the base 21, the driving group 40 includes an electric motor 41, a speed reduction device 43, an output shaft 435, and a swing arm 45; the speed reduction device 43 The electric motor 41 and the output shaft 435 are connected to each other, which may be a gear set to reduce the rotation speed of the output shaft 435 to increase the load capacity of the output shaft 435. The output shaft 435 is perpendicular to the axial direction of the rod body 31 and the guide groove 331. The swing arm 45 connects the output shaft 435 and the guide block 33 in a rectangular block shape. One end of the swing arm 45 is connected to the At the other end of the output shaft 435, a limit block 453 is provided. The limit block 453 is protruded from the side of the swing arm 45 facing the guide block 33, and the limit block 453 is slidably disposed on the guide. The guide groove 331 of the block 33 causes the swing arm 45 to be rotated by the output shaft 435, and the limiting block 453 can slide in the guide groove 331. Preferably, the limiting block 453 is cylindrical and rotatably connected to the swing arm 45 to increase the flexibility of the limiting block 453 to slide in the guide groove 331.

With reference to FIG. 7, when the jaw 50 is opened, the swing arm 45 is parallel to the axial direction of the rod body 31, and the guide block 33 is located between the stretcher wheel set 35 and the output shaft 435, the swing The limiting block 453 of the arm 45 is located in the guide groove 331 and adjacent to the rod body 31, and the tensioning wheel set 35 is located at the pivot position of the two clamping members 51 adjacent to the clamping nozzle 50, so that the two clamping nozzles 50 is open.

Please refer to FIG. 8, when the output shaft 435 rotates 90 degrees, the swing arm 45 is driven to rotate 90 degrees, the limit block 453 slides in a direction away from the rod body 31 in the guide groove 331, the limit block While sliding at 453, the guide block 33 is pushed, and the guide block 33 is driven to move to the same straight line as the output shaft 435, and the push rod group 30 is driven to move linearly backward.

Please refer to FIG. 9, when the output shaft 435 rotates to 180 degrees, the swing arm 45 is driven to rotate 180 degrees, and the limit block 453 slides in the direction of the rod body 31 in the guide groove 331, The limit block 453 slides and pushes the guide block 33, so that the guide block 33 moves to the side of the output shaft 435 away from the jaw 50, and drives the push rod group 30 to move linearly backward, and While the push rod group 30 is moved backward, the tension wheel group 35 is allowed to stretch the tail ends of the two clamping members 51, and the clamping nozzle 50 is driven to clamp.

After the clamping nozzle 50 is clamped, the output shaft 435 can be reversed by 180 degrees to drive the push rod group 30 forward. In this way, the length of the guide groove 331 of the guide block 33 only needs to be slightly larger than the swing arm 45 The length of the guide groove 331 is close to the rod body 31 at one end, and away from the rod body 31 at the other end; or the output shaft 435 can be turned further 180 degrees to drive the push rod group 30 forward, in this way The length of the guide groove 331 of the guide block 33 needs to be slightly greater than twice the length of the swing arm 45, and the opposite ends of the guide groove 331 are respectively located on the radial opposite sides of the rod body 31.

Using the above technical features, the output shaft 435 only needs to rotate 180 degrees to drive the push rod group 30 to move the linear distance of twice the swing radius length of the swing arm 45, so that the push rod group 30 can move axially quickly, improving The efficiency of turning motion into linear motion is converted, so that the clamping nozzle 50 of the electric C-type nail gun can quickly perform the clamping action.

10‧‧‧Main housing 20‧‧‧Clamp driving device 21‧‧‧Dock 212‧‧‧Shaft sleeve 30‧‧‧Putter set 31‧‧‧Bar 313‧‧‧Accommodation Department 33‧‧‧Guide block 331‧‧‧Guide groove 335‧‧‧Fixed parts 336‧‧‧Latch 35‧‧‧Expansion wheel set 40‧‧‧ drive group 41‧‧‧Electric motor 43‧‧‧Deceleration device 435‧‧‧ output shaft 45‧‧‧ Swing arm 453‧‧‧Limit block 50‧‧‧jaw 51‧‧‧Clamping parts 60‧‧‧ nail feeding mechanism 91‧‧‧Electric motor 92‧‧‧screw 93‧‧‧Expansion wheel set 95‧‧‧jaw 951‧‧‧Clamping parts

FIG. 1 is a perspective external view of an electric C-type nail gun equipped with a preferred embodiment of the present invention. FIG. 2 is a perspective external view of a preferred embodiment of the new type. FIG. 3 is an exploded perspective view of a preferred embodiment of the new model. Figure 4 is a side view of a preferred embodiment of the new model. 5 is a partial cross-sectional top view of a preferred embodiment of the new type. 6 is a partial cross-sectional side view of a preferred embodiment of the new model. 7 to 9 are schematic diagrams of actions of the new preferred embodiment. 10 is a side view of a conventional electric C-type nail gun.

20‧‧‧Clamp driving device

21‧‧‧Dock

212‧‧‧Shaft sleeve

30‧‧‧Putter set

31‧‧‧Bar

33‧‧‧Guide block

331‧‧‧Guide groove

35‧‧‧Expansion wheel set

40‧‧‧ drive group

41‧‧‧Electric motor

43‧‧‧Deceleration device

Claims (7)

A nail driving device for an electric C-type nail gun, which includes A base A push rod group is axially movable on the base, the push rod group includes a rod body and a guide block, the rod body is axially movable on the base, and the guide block is fixed Located on the rod body, the guide block includes a guide groove that is perpendicular to the axial direction of the rod body; and A driving group is fixed on the base, and includes an output shaft and a swing arm, the output shaft is perpendicular to the axial direction of the rod body of the push rod group and the guide groove of the guide block, and the swing arm One end is connected to the output shaft, the other end of the swing arm is provided with a limit block, and the limit block is set in the guide groove of the guide block. The nail clip driving device for an electric C-type nail gun according to claim 1, wherein the driving group includes an electric motor and a speed reduction device, and the speed reduction device connects the electric motor and the output shaft. The nail driving device of the electric C-type nail gun according to claim 2, wherein the push rod group includes a stretcher wheel group, and the stretcher wheel group is coupled to one end of the rod body. The clip driving device for an electric C-type nail gun according to claim 3, wherein the limit block of the swing arm is cylindrical and is rotatably connected to the swing arm. The nail driving device of the electric C-type nail gun according to claim 4, wherein the base is provided with a plurality of bushes spaced along the axial direction of the rod body, and the rod body is penetrated through the shafts Inside. The nail driving device for an electric C-type nail gun according to any one of claims 1 to 5, wherein one end of the guide groove is adjacent to the rod body, and the other end is away from the rod body. The nail driving device of the electric C-type nail gun according to any one of claims 1 to 5, wherein the two ends of the guide groove are respectively located on diametrically opposite sides of the rod body.

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