Handheld nut machine

Abstract

The utility model provides a handheld nut machine which comprises a motor handle, a nut rod installed at the bottom end of the motor handle, a connecting clamping base installed on the outer side of the nut rod, a second installation through hole formed in the middle of the connecting clamping base in a penetrating mode, the nut rod installed in the second installation through hole, a clamping hole formed in the center of the bottom end of the motor handle, and a clamping head installed at the bottom end of the nut rod. The nut rod comprises a rod handle, an upper pipe and a lower pipe, the rod handle is installed in the clamping hole, the upper pipe is installed at the bottom end of the rod handle, the lower pipe is installed at the bottom end of the upper pipe, the chuck comprises a clamping body, a nut inlet pipe, a right clamping block and a left clamping block, the clamping body is installed at the bottom end of the nut rod, a limiting through hole is formed in the center of the clamping body, and the nut rod is arranged in the limiting through hole; the right upper end of the clamp body is provided with the nut inlet pipe, the right lower end of the clamp body is provided with the right clamping block, and the left end of the right clamping block is provided with the left clamping block. According to the handheld nut machine, through the arrangement of the clamping hole, the rod handle, the left clamping block, the right clamping block and other structures, the effects that the nut rod is convenient to disassemble, and the phenomenon of nut clamping is avoided can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of fasteners, and more specifically, relates to a hand-held nut machine. Background Art

[0002] In the field of mechanical engineering, nuts are very common fasteners, which are often used in conjunction with bolts or screws; during use, external force is required to tighten the nuts to play a fastening role. In the prior art, a hook wrench is often used to perform the tightening operation. During operation, the operator holds the hook wrench and manually tightens the nuts. Manual operation has a high labor intensity and low work efficiency. In addition, when manually tightening nuts, it is impossible to accurately control the tightening torque applied to the nuts. The operator judges whether the nuts are tightened by experience, and often there will be inaccurate pre-judgment, resulting in the nuts not being tightened in place, or excessive force being applied, causing the threads to slip and damaging the nuts. With the development of the mechanization and automation industries, a type of hand-held nut machine that can tighten nuts has emerged on the market.

[0003] However, the nut rods of traditional hand-held nut machines are fixed to the motor handle by threads, which is not easy to replace during later use. The chuck of traditional hand-held nut machines will have the phenomenon of jamming nuts during use, resulting in slow production efficiency and it is not easy to take out the jammed nuts.

[0004] The utility model can facilitate the disassembly of the nut rod and avoid the occurrence of nut jamming. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the technical problems proposed in the above background art, and provide a hand-held nut machine, achieving the effects of facilitating the disassembly of the nut rod and avoiding the occurrence of nut jamming.

[0006] To achieve the above object, the utility model provides the following technical solution: A hand-held nut machine, comprising: a motor handle, a nut rod is installed at the bottom end of the motor handle, a connecting chuck is installed outside the nut rod, a second installation through hole is formed through the middle of the connecting chuck, the nut rod is installed in the second installation through hole, a clamping hole is opened at the center of the bottom end of the motor handle, and a chuck is installed at the bottom end of the nut rod.

[0007] The nut rod includes a rod handle, an upper tube and a lower tube, the rod handle is installed inside the clamping hole, the upper tube is installed at the bottom end of the rod handle, and the lower tube is installed at the bottom end of the upper tube.

[0008] The chuck includes: a chuck body, a nut inlet tube, a right clamping block and a left clamping block. The chuck body is installed at the bottom end of the nut rod, a limiting through hole is opened at the center of the chuck body, the nut rod is arranged inside the limiting through hole, the nut inlet tube is installed at the upper right end of the chuck body, the right clamping block is installed at the lower right end of the chuck body, and the left clamping block is installed at the left end of the right clamping block.

[0009] Further preferred solution: A first mounting through-hole is provided at the outer top end of the upper tube, a third connection through-hole is provided at the outer bottom end of the rod handle, a fourth fixing pin is installed in the first mounting through-hole and the third connection through-hole, the upper tube and the lower tube are hollow inside, a third spring is installed in the center of the upper tube and the lower tube, and a nut slot is provided at the lower end of the lower tube.

[0010] Further preferred solution: A first air extraction port is provided directly below the first mounting through-hole, a second air extraction port is provided at the top end of the connecting clip seat, and an air extraction through-hole for connecting the first air extraction port and the second air extraction port is provided through the center of the connecting clip seat.

[0011] Further preferred solution: The bottom end of the third spring is connected to a first suction nut block, the first suction nut block is a through-tube, and a flower-shaped opening is provided at the bottom end of the first suction nut block.

[0012] Further preferred solution: The bottom end of the third spring is connected to a second suction nut block, and the bottom end of the second suction nut block has magnetism.

[0013] Further preferred solution: A first mounting hole is provided through the center of the left end of the clip body, a first connection through-hole is provided through the upper left end of the left clip block, a third fixing pin is installed in the first mounting hole and the first connection through-hole, a left mounting groove is provided at the left end of the clip body, the left clip block is installed in the left mounting groove, a second mounting hole is provided through the lower right end of the clip body, a second connection through-hole is provided through the upper right end of the right clip block, a first fixing pin is installed at the front end inside the second mounting hole and the second connection through-hole, a second fixing pin is installed at the rear end inside the second mounting hole and the second connection through-hole, a right mounting groove is provided at the lower right end of the clip body, and the right clip block is installed in the right mounting groove.

[0014] Further preferred solution: A first spring is sleeved outside the third fixing pin, a second spring is sleeved outside the first fixing pin and the second fixing pin, and a spring limiting platform is provided outside the right clip block.

[0015] Further preferred solution: A left clip groove is provided on the right side of the top end of the left clip block, a right clip groove is provided on the left side of the top end of the right clip block, and the left clip groove and the right clip groove fit with the nut to be tightened.

[0016] Beneficial effects:

[0017] 1. By providing a card hole and a rod handle, the effect of facilitating the disassembly of the nut rod is achieved. The card hole is at the center of the bottom end of the motor handle and is used to connect the rod handle. This design allows for the quick replacement or adjustment of the nut rod assembly, improving the versatility and convenience of the tool. The presence of the card hole and the rod handle means that the nut rod can be easily disassembled and replaced to meet different working requirements;

[0018] 2. By providing a left clamping block and a right clamping block, the phenomenon of nut jamming is avoided. When the nut to be tightened enters the lower end of the clamping body through the nut inlet tube, it will slide into the center of the left clamping groove and the right clamping groove, restricting the position of the nut to be tightened, thus facilitating the nut rod to suck the nut to be tightened and avoiding the occurrence of nut jamming.

[0019] 3. In summary, for this kind of hand-held nut machine, by providing structures such as a clamping hole, a rod handle, a left clamping block and a right clamping block, it can facilitate the disassembly of the nut rod and avoid the occurrence of nut jamming. Description of the Drawings

[0020] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention.

[0021] Figure 2 It is a schematic three-dimensional structure diagram of the nut rod of the present invention.

[0022] Figure 3 It is a schematic three-dimensional structure diagram of the nut rod and the connecting clamping seat of the present invention.

[0023] Figure 4 It is a schematic three-dimensional structure diagram of the first nut-sucking block of the present invention.

[0024] Figure 5 It is a schematic three-dimensional structure diagram of the second nut-sucking block of the present invention.

[0025] Figure 6 It is a schematic three-dimensional structure diagram of the chuck and the nut rod of the present invention.

[0026] Figure 7 It is a schematic three-dimensional structure diagram when the left clamping block and the right clamping block of the present invention are open.

[0027] Figure 8 It is a schematic three-dimensional structure diagram of the left clamping block, the right clamping block and the nut to be tightened of the present invention.

[0028] Figure 9 It is an exploded schematic three-dimensional structure diagram of the chuck of the present invention.

[0029] Figures 1-9Chinese: 1. Nut rod; 2. Motor handle; 3. Connecting clamp seat; 4. Chuck; 5. Nut to be tightened; 6. First spring; 7. Second spring; 8. Second connecting through hole; 9. First fixing pin; 10. Second fixing pin; 11. Third fixing pin; 12. First connecting through hole; 101. Lower tube; 102. First nut sucking block; 103. Third spring; 104. First air extraction port; 105. Fourth fixing pin; 106. First mounting through hole; 107. Rod handle; 108. Third connecting through hole; 109. Upper tube; 110. Flower-shaped opening; 111. Nut slot; 112. Second nut sucking block; 201. Card hole; 301. Second mounting through hole, 302. Second air extraction port; 401. Clamp body; 402. Nut inlet tube; 403. Left clamp block; 404. Right clamp block; 4010. First mounting hole; 4011. Second mounting hole; 4012. Left mounting groove; 4013. Limit through hole; 4014. Right mounting groove; 4031. Left clamping groove; 4032. Spring limit platform; 4041. Right clamping groove. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the attached Figures 1-9 drawings in the embodiments of the present invention.

[0031] Please refer to Figures 1-9 In the embodiments of the present invention, a hand-held nut machine includes: a motor handle 2, which serves as the main holding part of the hand-held tool and contains a motor drive system to provide a power source for the nut rod 1; the nut rod 1 is used to carry and rotate the nut, and it is composed of three parts: a rod handle 107, an upper tube 109 and a lower tube 101. The rod handle 107 is located at the uppermost part and is directly connected to the card hole 201 of the motor handle 2 to achieve the effect of quick installation and replacement of the nut rod 1; the upper tube 109 is installed at the bottom end of the rod handle 107 and is used to connect to the connecting clamp seat 3; the lower tube 101 is located at the bottom end of the upper tube 109, and the lower tube 101 is used to directly contact the nut and can hold the nut; the connecting clamp seat 3 is installed outside the nut rod 1 to limit the position of the nut rod 1. The card hole 201 is in the center of the bottom end of the motor handle 2 and is used to connect the rod handle 107. This design allows for quick replacement or adjustment of the nut rod 1 assembly, improving the versatility and convenience of the tool. The presence of the card hole 201 and the rod handle 107 means that the nut rod 1 can be easily disassembled and replaced to adapt to different working requirements.

[0032] The chuck 4 is installed at the bottom end of the nut rod 1. The chuck 4 includes: a chuck body 401, a nut inlet pipe 402, a right chuck block 404, and a left chuck block 403. The chuck body 401 serves as the basic structure of the entire chuck 4, providing necessary support and stability. The nut inlet pipe 402 is installed at the upper right end of the chuck body 401. The design purpose of this component is to facilitate the user to introduce the nut into the chuck 4. The nut inlet pipe 402 usually has a certain guiding function to ensure that the nut 5 to be tightened can smoothly enter the lower end of the chuck body 401, preparing for the subsequent tightening operation. The right chuck block 404 is installed at the lower right end of the chuck body 401, and the left chuck block 403 is installed at the left end of the right chuck block 404. Acting together with the right chuck block 404, they form a complete mechanism that can prevent the phenomenon of nut jamming when the hand-held nut machine chuck 4 is in use.

[0033] A second installation through-hole 301 is provided through the middle of the connecting chuck base 3. The nut rod 1 is inserted and installed through the second installation through-hole 301 of the connecting chuck base 3 to achieve the effect of restricting the position of the nut rod 1. A limiting through-hole 4013 is provided in the center of the chuck body 401, and the nut rod 1 is arranged in the limiting through-hole 4013 to achieve the effect of enabling the nut rod 1 to move up and down in the center of the chuck body 401.

[0034] In the embodiment of the present utility model, a first installation through-hole 106 is provided at the outer top end of the upper pipe 109, and a third connection through-hole 108 is provided at the outer bottom end of the rod handle 107. A fourth fixing pin 105 is installed in the first installation through-hole 106 and the third connection through-hole 108 to achieve the effect of connecting the rod handle 107 and the upper pipe 109. The fourth fixing pin 105 passes through the second installation through-hole 301 and the third connection through-hole 108, thereby fixedly assembling the rod handle 107 and the upper pipe 109. The upper pipe 109 and the lower pipe 101 are hollow inside. A third spring 103 is installed in the center of the upper pipe 109 and the lower pipe 101. A nut slot 111 is provided at the lower end of the lower pipe 101. Through the hollow settings of the upper pipe 109 and the lower pipe 101, when the second air extraction port 302 of the connecting chuck base 3 extracts air, it can provide suction for the first nut suction block 102. Through the third spring 103, it can achieve the effect of buffering, thereby avoiding damage to the nut, the first nut suction block 102, and the second nut suction block 112. Through the nut slot 111, it can achieve the effect of restricting the position of the bolt to be tightened.

[0035] In the embodiment of the present utility model, a first air extraction port 104 is provided directly below the first installation through-hole 106. The top end of the connecting chuck base 3 is provided with a second air extraction port 302. A through-hole for connecting the first air extraction port 104 and the second air extraction port 302 is provided through the middle of the connecting chuck base 3 to achieve the effect of being able to extract the air inside the nut rod 1, thereby providing suction for the first nut suction block 102.

[0036] In the embodiment of the utility model, the bottom end of the third spring 103 is connected to the first nut suction block 102, the first nut suction block 102 is a through tube, and the bottom end of the first nut suction block 102 is provided with a flower-shaped mouth 110, so as to achieve the effect of being able to absorb the nut, and the connecting clamp seat 3 is exhausted from the second air exhaust port 302, and the upper tube 109 and the lower tube 101 are hollow inside, and the first nut suction block 102 is a through tube, so that the first nut suction block 102 has suction when exhausting.

[0037] In the embodiment of the utility model, the first nut suction block 102 connected to the bottom end of the third spring 103 can be replaced with a second nut suction block 112. The bottom end of the second nut suction block 112 is magnetic, so that the nut can be sucked by the magnetic force inside the second nut suction block 112 without using air pressure to suck the second nut block.

[0038] In the embodiment of the utility model, a first mounting hole 4010 is provided through the center of the left end of the clamp body 401, a first connecting through hole 12 is provided through the upper left end of the left clamp block 403, a third fixing pin 11 is installed in the first mounting hole 4010 and the first connecting through hole 12, a left mounting groove 4012 is provided at the left end of the clamp body 401, and a left clamp block 403 is installed in the left mounting groove 4012, so as to achieve the effect of installing the left clamp block 403, and the left clamp block 403 is installed on the left mounting groove 4012 of the clamp body 401 by passing the third fixing pin 11 through the first mounting hole 4010 and the first connecting through hole 12; a third fixing pin 11 is provided through the lower right end of the clamp body 401 Two mounting holes 4011, a second connecting through hole 8 is provided on the upper right end of the right clamping block 404, a first fixing pin 9 is installed at the front end of the second mounting hole 4011 and the second connecting through hole 8, a second fixing pin 10 is installed at the rear end of the second mounting hole 4011 and the second connecting through hole 8, a right mounting groove 4014 is provided at the lower right end of the clamping body 401, and the right clamping block 404 is installed in the right mounting groove 4014, so as to achieve the effect of installing the right clamping block 404, and the first fixing pin 9 and the second fixing pin 10 pass through the second mounting hole 4011 and the second connecting through hole 8, so that the right clamping block 404 is installed on the right mounting groove 4014 of the clamping body 401.

[0039] In the embodiment of the utility model, the first spring 6 is sleeved on the outer side of the third fixing pin 11, and the second spring 7 is sleeved on the outer side of the first fixing pin 9 and the second fixing pin 10, so as to achieve the effect of resetting the left clamping block 403 and the right clamping block 404. When the nut rod 1 pushes the left clamping block 403 and the right clamping block 404 open and then moves upward to return to its original position, the left clamping block 403 and the right clamping block 404 rebound and close through the elastic force of the first spring 6 and the second spring 7, and a spring limit platform 4032 is provided on the outer side of the right clamping block 404, so as to achieve the effect of limiting the position of the right clamping block 404 in cooperation with the second spring 7.

[0040] In the embodiment of the present utility model, a left clamping groove 4031 is formed on the right side of the top end of the left clamping block 403, and a right clamping groove 4041 is formed on the left side of the top end of the right clamping block 404. The left clamping groove 4031 and the right clamping groove 4041 are fitted with the nut 5 to be tightened, achieving the effect of restricting the position of the nut 5 to be tightened. When the nut 5 to be tightened enters the lower end of the clamping body 401 through the nut inlet pipe 402, it will slide into the center of the left clamping groove 4031 and the right clamping groove 4041, restricting the position of the nut 5 to be tightened, so that it is convenient for the nut rod 1 to suck the nut 5 to be tightened, avoiding the occurrence of nut jamming phenomenon.

[0041] Working principle: First, the nut 5 to be tightened enters the lower end of the clamping body 401 through the nut inlet pipe 402, then the nut 5 to be tightened slides into the center of the left clamping groove 4031 and the right clamping groove 4041. Then the nut rod 1 moves downward. When the front end of the nut rod 1 reaches the nut 5 to be tightened, it sucks the nut 5 to be tightened. Then the nut rod 1 continues to press downward, simultaneously pushing open the left clamping block 403 and the right clamping block 404. The nut rod 1 moves downward to complete the ejection of the nut 5 to be tightened and the connection with the product. Then the nut rod 1 moves upward and returns to its original position. The left clamping block 403 and the right clamping block 404 rebound and close through the elastic force of the first spring 6 and the second spring 7; the nut rod 1 passes through the second installation through hole 301 of the connecting clamping seat 3 and is inserted for installation, and the rod handle 107 is inserted into the clamping hole 201 below the motor handle 2. This design allows for the quick replacement or adjustment of the nut rod 1 assembly, improving the versatility and convenience of the tool. The existence of the clamping hole 201 and the rod handle 107 means that the nut rod 1 can be easily disassembled and replaced to adapt to different working requirements. The bottom end of the lower pipe 101 of the nut rod 1 is provided with a nut clamping groove 111. The nut is clamped in and the nut is sucked tightly onto the flower-shaped opening 110 at the bottom end of the first nut sucking block 102 by pumping air through the second air extraction port 302 of the connecting clamping seat 3, or the nut is sucked by the magnetic force inside the second nut sucking block 112. Finally, the motor is started, and the motor drives the nut rod 1 to rotate, thereby tightening the nut.

Claims

1. A handheld nut cutter, comprising: The motor handle (2) is characterized in that: a nut rod (1) is installed at the bottom end of the motor handle (2), a connecting clamp seat (3) is installed on the outside of the nut rod (1), a second mounting through hole (301) is opened through the middle of the connecting clamp seat (3), the nut rod (1) is installed in the second mounting through hole (301), a clamping hole (201) is opened in the center of the bottom end of the motor handle (2), and a clamp head (4) is installed at the bottom end of the nut rod (1). The nut rod (1) comprises a rod handle (107), an upper tube (109) and a lower tube (101); the rod handle (107) is installed inside the clamping hole (201); the upper tube (109) is installed at the bottom end of the rod handle (107); and the lower tube (101) is installed at the bottom end of the upper tube (109). The chuck (4) comprises: a chuck body (401), a nut inlet tube (402), a right clamping block (404) and a left clamping block (403); the chuck body (401) is mounted on the bottom end of the nut rod (1); a limiting through hole (4013) is provided in the center of the chuck body (401); the nut rod (1) is arranged in the limiting through hole (4013); the nut inlet tube (402) is mounted on the upper right end of the chuck body (401); the right clamping block (404) is mounted on the lower right end of the chuck body (401); and the left clamping block (403) is mounted on the left end of the right clamping block (404).

2. A handheld nut cutter according to claim 1, characterized in that: A first mounting through hole (106) is provided at the outer top end of the upper tube (109), a third connecting through hole (108) is provided at the outer bottom end of the rod handle (107), a fourth fixing pin (105) is installed in the first mounting through hole (106) and the third connecting through hole (108), the upper tube (109) and the lower tube (101) are hollow inside, a third spring (103) is installed in the center of the upper tube (109) and the lower tube (101), and a nut clamping groove (111) is provided at the lower end of the lower tube (101).

3. A handheld nut cutter according to claim 2, characterized in that: A first air suction port (104) is provided directly below the first mounting through hole (106), a second air suction port (302) is provided at the top of the connecting clamp seat (3), and an air suction through hole for connecting the first air suction port (104) and the second air suction port (302) is provided through the center of the connecting clamp seat (3).

4. A handheld nut cutter according to claim 2, characterized in that: The bottom end of the third spring (103) is connected to the first suction nut block (102); the first suction nut block (102) is a through pipe; and a flower-shaped opening (110) is provided at the bottom end of the first suction nut block (102).

5. A handheld nut cutter according to claim 2, characterized in that: The bottom end of the third spring (103) is connected to a second suction nut block (112), and the bottom end of the second suction nut block (112) is magnetic.

6. A handheld nut cutter according to claim 1, characterized in that: A first mounting hole (4010) is formed through the center of the left end of the clamp body (401), a first connecting through hole (12) is formed through the upper left end of the left clamp block (403), a third fixing pin (11) is installed in the first mounting hole (4010) and the first connecting through hole (12), a left mounting groove (4012) is formed at the left end of the clamp body (401), a left clamp block (403) is installed in the left mounting groove (4012), a second mounting groove (4012) is formed through the lower right end of the clamp body (401), and a third fixing pin (11) is installed in the first mounting hole (4010) and the first connecting through hole (12). A second connecting through hole (4011) is provided at the right upper end of the right clamping block (404), a first fixing pin (9) is installed at the front end of the second mounting hole (4011) and the second connecting through hole (8), a second fixing pin (10) is installed at the rear end of the second mounting hole (4011) and the second connecting through hole (8), a right mounting groove (4014) is provided at the right lower end of the clamping body (401), and the right clamping block (404) is installed in the right mounting groove (4014).

7. A handheld nut cutter according to claim 6, characterized in that: The third fixing pin (11) is sleeved with a first spring (6), the first fixing pin (9) and the second fixing pin (10) are sleeved with a second spring (7), and the right clamping block (404) is provided with a spring limiting platform (4032) on its outer side.

8. The handheld nut cutter according to claim 6, characterized in that: The left clamping block (403) has a left clamping groove (4031) on the right side of the top end, and the right clamping block (404) has a right clamping groove (4041) on the left side of the top end. The left clamping groove (4031) and the right clamping groove (4041) fit with the nut (5) to be tightened.

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