Electromagnetic nail gun

Abstract

The utility model belongs to the technical field of nail guns, and relates to an electromagnetic nail gun which comprises a shell, a nail clamp is arranged on the front side of the shell, a firing pin seat is arranged in the shell, a firing pin is arranged on the firing pin seat in a sliding mode, and a driving groove is formed in the middle of the firing pin. A lever is arranged below the firing pin, one end of the lever is movably assembled in the driving groove, the lever is driven by a first electromagnetic assembly to impact the front end of the driving groove and drives the firing pin to move towards the pin clamp, and a second electromagnetic assembly for driving the firing pin to reset is arranged at the rear end of the firing pin base. And when the firing pin is reset, the lever is impacted by the driving groove to reset the firing pin. The electromagnetic nail gun provided by the utility model has the advantages of simple structure, small size and quick return.

Description

Technical Field

[0001] The utility model belongs to the technical field of nail guns and relates to an electromagnetic nail gun. Background Art

[0002] A nail gun is a product composed of a gun body and a magazine. It is also called a nail gun or a nail shooter. It can shoot nails and is a modern fastening technology product. It belongs to direct consolidation technology and has become an essential hand tool for woodworking and construction. Usually, the power source of a nail gun is electric, pneumatic, or gas-ignited.

[0003] Chinese utility model patent CN 212825140 U (publication date 2021-03-30) discloses a quick-fire nail gun, including a firing pin slidably arranged in a firing pin guide rail, a nail clamp for supplying nails into the firing pin guide rail is arranged at the front end of the firing pin guide rail, a striking rod for striking the firing pin is arranged at the rear end of the firing pin, the head of the striking rod is driven by a power device to strike the firing pin, the striking rod is connected to a striking rod reset device, and the firing pin is connected to the firing pin reset device.

[0004] The above-mentioned fast-action nail gun resets the striker rod through the striker rod reset device and resets the striker through the striker pin reset device, and its reset structure is relatively complex. In particular, the striker pin reset device is not only complex in structure, but also requires a lot of space, resulting in an excessively large size of the nail gun. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an electromagnetic nail gun which has the advantages of simple structure, small size and rapid return.

[0006] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0007] An electromagnetic nail gun comprises a shell, a nail clamp is arranged on the front side of the shell, a firing pin seat is arranged in the shell, a firing pin is slidably arranged on the firing pin seat, a driving groove is arranged in the middle of the firing pin, a lever with one end movably assembled in the driving groove is arranged below the firing pin, the lever is driven by a first electromagnetic component to hit the front end of the driving groove and drive the firing pin to move toward the nail clamp, and a second electromagnetic component is arranged at the rear end of the firing pin seat to drive the firing pin to reset, and when the firing pin is reset, it is reset by hitting the lever through the driving groove.

[0008] In the above electromagnetic nail gun, the striker seat is provided with an avoidance groove, the upper end of the lever enters the striker seat through the avoidance groove and cooperates with the driving groove. The avoidance groove and the driving groove are both strip grooves distributed along the sliding direction of the striker.

[0009] In the above-mentioned electromagnetic nail gun, preferably, the avoidance groove is arranged through the firing pin seat, and the driving groove is arranged through the firing pin.

[0010] In the above-mentioned electromagnetic nail gun, a collision block is provided at the front end of the driving slot. Preferably, the collision block is made of high-toughness, high-strength collision-resistant metal material. Preferably, the collision block is a roller, and the roller is rotatably connected in the driving slot through a roller pin.

[0011] In the above electromagnetic nail gun, the first electromagnetic assembly includes an electromagnet and a driving core, the lower end of the lever is hinged to the electromagnet, and the middle part is hinged to the driving core through a connecting rod. The first electromagnetic assembly can also use other known driving structures in the art.

[0012] In the above-mentioned electromagnetic nail gun, the second electromagnetic component includes: a coil frame arranged at the rear end of the striker seat, a coil wound on the coil frame, a magnet arranged on the rear side of the coil frame and a reset core arranged at the rear end of the striker, and the reset core is slidably arranged in the coil frame. Furthermore, a magnetic sleeve can also be arranged in the coil frame, and the reset core is slidably arranged in the magnetic sleeve. Preferably, the magnet is an annular magnet, and its inner diameter is larger than the outer diameter of the reset core. Preferably, the magnet is installed in the coil frame. Preferably, a buffer pad cooperating with the reset core is arranged on the rear side of the coil frame.

[0013] In the above-mentioned electromagnetic nail gun, the firing pin includes a syringe part and a needle rod part, the driving groove is arranged on the syringe part, the inner cavity of the firing pin seat is adapted to the syringe part, and the front end of the firing pin seat is provided with a through hole matching the shape of the needle rod part.

[0014] In the above-mentioned electromagnetic nail gun, a mounting seat is provided at the front end of the firing pin seat, and the nail clamp and the first electromagnetic assembly are both fastened to the mounting seat.

[0015] In the above-mentioned electromagnetic nail gun, a control panel electrically connected to the first electromagnetic component and the second electromagnetic component is disposed in the shell, and an adjustment knob electrically connected to the control panel is rotatably disposed on the shell, and the adjustment knob controls the current of the first electromagnetic component to adjust the striking force of the lever.

[0016] In the above-mentioned electromagnetic nail gun, a buffer pad is provided at the front end of the striker seat, and a conical buffer surface matching the conical surface at the front end of the syringe part is provided on the buffer pad.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides an electromagnetic nail gun, which improves the driving structure and reset structure of the electromagnetic nail gun. By setting a driving groove that matches the lever on the striker, the driving groove and the lever are used to hit and reset the nail. The utility model can reset the striker and the lever at the same time through the second electromagnetic component, which greatly simplifies the reset structure. In addition, the second electromagnetic component of the utility model is directly set at the rear end of the striker, which can also reduce the space occupied by the reset structure and make the nail gun miniaturized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the internal structure diagram of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the firing pin of the utility model;

[0021] Figure 3 It is a three-dimensional diagram of the firing pin seat of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the cushioning pad of the utility model;

[0023] Figure numerals: 1. shell; 2. nail clip; 3. striker seat; 4. striker; 5. driving groove; 6. lever; 7. avoidance groove; 8. impact block; 9. electromagnet; 10. driving iron core; 11. connecting rod; 12. coil frame; 13. coil; 14. magnet; 15. reset iron core; 16. syringe part; 17. needle rod part; 18. through-port; 19. mounting seat; 20. control panel; 21. adjustment knob; 22. buffer pad; 23. conical buffer surface. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings. Figure 1-4 :

[0025] An electromagnetic nail gun comprises a shell 1, a nail clamp 2 is arranged on the front side of the shell 1, a firing pin seat 3 is arranged inside the shell 1, a firing pin 4 is slidably arranged on the firing pin seat 3, a driving groove 5 is arranged in the middle of the firing pin 4, a lever 6 with one end movably assembled in the driving groove 5 is arranged below the firing pin 4, the lever 6 is driven by a first electromagnetic component to hit the front end of the driving groove 5 and drive the firing pin 4 to move toward the nail clamp 2, and a second electromagnetic component is arranged at the rear end of the firing pin seat 3 to drive the firing pin 4 to reset, and when the firing pin 4 is reset, it hits the lever 6 through the driving groove 5 to reset it.

[0026] Compare with Figure 1The working principle of this embodiment is: when nailing, the first electromagnetic component drives the striking end of the lever 6 to move rapidly in the direction in which the striker 4 slides out, and the striking end of the lever 6 hits the front end of the driving slot 5, so that the striker 4 moves toward the nail clamp 2, hits the gun nail, and makes the gun nail fly out of the nail gun and nail into the receptor, completing the nailing; when resetting, the second electromagnetic component drives the striker 4 to move rapidly backward and reset, and during the resetting process, the striker 4 hits the striking end of the lever 6 through the front end of the driving slot 5, so that the striking end of the lever 6 moves backward and resets.

[0027] Compare with Figure 2 and attached Figure 3 The striker seat 3 is provided with an avoidance groove 7, and the upper end of the lever 6 enters the striker seat 3 through the avoidance groove 7 and cooperates with the driving groove 5. The avoidance groove 7 and the driving groove 5 are both strip grooves distributed along the sliding direction of the striker 4.

[0028] Further, the avoidance groove 7 is set through the striker seat 3, and the driving groove 5 is set through the striker 4. By setting the avoidance groove 7, the lever 6 can be better assembled, and by setting the through groove structure, an axial space can be provided for the movement of the lever 6, so that the movement of the lever 6 is freer.

[0029] In order to improve the impact effect and impact life, an impact block 8 is provided at the front end of the driving slot 5. Preferably, the impact block 8 is made of high-toughness, high-strength impact-resistant metal material. Preferably, the impact block 8 is a roller, and the roller is rotatably connected in the driving slot 5 through a roller pin. When the lever 6 hits the impact block 8, the end of the lever 6 will form a certain angle with the impact block 8. The use of a roller structure can better match the hitting angle of the lever 6, making the hitting smoother.

[0030] In this embodiment, the first electromagnetic assembly includes an electromagnet 9 and a driving iron core 10, and the lower end of the lever 6 is hinged to the electromagnet 9, and the middle part is hinged to the driving iron core 10 through a connecting rod 11. The first electromagnetic assembly can also use other known driving structures in the art. After the electromagnet 9 is energized, it attracts the driving iron core 10 to move quickly, and the driving iron core 10 pulls the lever 6 to rotate around the hinge point at the lower end through the connecting rod 11, thereby hitting the striker 4.

[0031] In this embodiment, the second electromagnetic assembly includes: a coil frame 12 arranged at the rear end of the striker seat 3, a coil 13 wound on the coil frame 12, a magnet 14 arranged on the rear side of the coil frame 12, and a reset iron core 15 arranged at the rear end of the striker 4, wherein the reset iron core 15 is slidably arranged in the coil frame 12. When resetting, the coil 13 is energized, and the reset iron core 15 generates magnetism that attracts the magnet 14, driving the reset iron core 15 to move quickly to the rear end; by adjusting the magnitude of the current in the coil 13, the magnitude of the magnetic force generated by the reset iron core 15 can also be adjusted, thereby adjusting the reset speed; this embodiment can also change the direction of the current when nailing, so that the reset iron core 15 generates magnetism that repels the magnet 14 to assist nailing.

[0032] The second electromagnetic component of this embodiment can also use other structures, for example: a reset core 15 is set at the rear end of the striker 4, and an electromagnet 9 is set at a distance on the rear side of the reset core 15. When the electromagnet 9 is energized, it generates magnetic force to attract the reset core 15 to move backward quickly, thereby achieving reset.

[0033] Furthermore, a magnetic sleeve may be provided in the coil skeleton 12, and the reset core 15 may be slidably provided in the magnetic sleeve. Preferably, the magnet 14 is an annular magnet, and its inner diameter is larger than the outer diameter of the reset core 15. Preferably, the magnet 14 is installed in the coil skeleton 12. Preferably, a buffer pad cooperating with the reset core 15 is provided on the rear side of the coil skeleton 12, and the buffer pad may provide a limit and buffering effect for the reset core 15.

[0034] Compare with Figure 2 In this embodiment, the striker 4 includes a syringe portion 16 and a needle rod portion 17, the driving groove 5 is arranged on the syringe portion 16, the inner cavity of the striker seat 3 is adapted to the syringe portion 16, and the front end of the striker seat 3 is provided with a through hole 18 matching the shape of the needle rod portion 17. By providing the syringe portion 16, the striker 4 can be stably moved axially, and the driving groove 5 acting on the lever 6 is conveniently provided. The needle rod portion 17 of this embodiment has the same front end structure as the general striker 4.

[0035] Compare with Figure 1 The housing 1 is provided with a control board 20 electrically connected to the first electromagnetic assembly and the second electromagnetic assembly, and is used to control the first electromagnetic assembly to complete the nailing action and control the second electromagnetic assembly to complete the reset action. In order to adjust the nailing force of the nail gun, the housing 1 is rotatably provided with an adjustment knob 21 electrically connected to the control board 20, and the adjustment knob 21 controls the current size of the first electromagnetic assembly to adjust the striking force of the lever 6.

[0036] For easy installation, a mounting seat 19 is provided at the front end of the striker seat 3, and the nail clip 2 and the first electromagnetic assembly are both fastened to the mounting seat 19. Through the above structure, the components in the housing 1 of this embodiment can be connected into a whole first and then installed in the housing 1.

[0037] Compare with Figure 1 and attached Figure 4 The front end of the striker seat 3 is provided with a buffer pad 22, and the buffer pad 22 is provided with a conical buffer surface 23 that cooperates with the conical surface of the front end of the needle barrel 16. The buffer pad can provide a limit and buffering effect for the striker 4 to slide forward when nailing by cooperating with the needle barrel.

[0038] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic nail gun, comprising a housing (1), a nail clamp (2) being arranged on the front side of the housing (1), characterized in that: A striker seat (3) is arranged in the shell (1), a striker (4) is slidably arranged on the striker seat (3), a driving groove (5) is arranged in the middle of the striker (4), a lever (6) with one end movably assembled in the driving groove (5) is arranged below the striker (4), the lever (6) is driven by a first electromagnetic component to hit the front end of the driving groove (5) and drive the striker (4) to move toward the nail clamp (2), and a second electromagnetic component is arranged at the rear end of the striker seat (3) to drive the striker (4) to reset, and when the striker (4) is reset, it hits the lever (6) through the driving groove to reset it.

2. An electromagnetic nail gun according to claim 1, characterized in that: The striker seat (3) is provided with an avoidance groove (7), and the upper end of the lever (6) enters the striker seat (3) through the avoidance groove (7) and cooperates with the driving groove (5).

3. The electromagnetic nail gun according to claim 1, characterized in that: A collision block (8) is provided at the front end of the driving groove (5).

4. An electromagnetic nail gun according to claim 3, characterized in that: The impact block (8) is a roller, and the roller is rotatably connected in the driving groove (5) via a roller pin.

5. The electromagnetic nail gun according to claim 1, characterized in that: The first electromagnetic component comprises an electromagnet (9) and a driving iron core (10); the lower end of the lever (6) is hinged to the electromagnet (9), and the middle part is hinged to the driving iron core (10) through a connecting rod (11).

6. The electromagnetic nail gun according to claim 1, characterized in that: The second electromagnetic component comprises: a coil frame (12) arranged at the rear end of the striker seat (3), a coil (13) wound on the coil frame (12), a magnet (14) arranged at the rear side of the coil frame (12), and a reset iron core (15) arranged at the rear end of the striker (4), wherein the reset iron core (15) is slidably arranged in the coil frame (12).

7. The electromagnetic nail gun according to claim 1, characterized in that: The striker (4) comprises a syringe portion (16) and a needle rod portion (17), the driving groove (5) is arranged on the syringe portion (16), the inner cavity of the striker seat (3) is adapted to the syringe portion (16), and the front end of the striker seat (3) is provided with a through hole (18) matching the shape of the needle rod portion (17).

8. The electromagnetic nail gun according to claim 1, characterized in that: A mounting seat (19) is provided at the front end of the striker seat (3), and the nail clamp (2) and the first electromagnetic assembly are both fixedly connected to the mounting seat (19).

9. The electromagnetic nail gun according to claim 1, characterized in that: A control panel (20) electrically connected to the first electromagnetic component and the second electromagnetic component is disposed in the housing (1), and an adjustment knob (21) electrically connected to the control panel (20) is rotatably disposed on the housing (1), wherein the adjustment knob (21) controls the current of the first electromagnetic component to adjust the striking force of the lever (6).

10. The electromagnetic nail gun according to claim 7, characterized in that: The front end of the striker seat (3) is provided with a buffer pad (22), and the buffer pad (22) is provided with a conical buffer surface (23) that matches the conical surface at the front end of the syringe part (16).

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