Dual-purpose nut gun

Abstract

The utility model discloses a dual -purpose nut gun, including transmission assembly, first conversion subassembly and second conversion subassembly, and transmission assembly includes support cover, slewing screw, sliding cover, slewing screw rotation connection in the rear end of support cover, and the front end of slewing screw is provided with outer thread, and the most front end of slewing screw sets up a plurality of first processing surface along the circumference, forms transmission head, and the rear end of sliding cover is provided with the rear thread hole of adapting with outer thread, and the rear end of rear thread hole sets up a plurality of second processing surface along the circumference, forms the transmission groove of adapting with transmission head, and the front end of sliding cover is provided with front thread hole, first conversion subassembly includes first connecting sleeve and screw piece, and the front end of screw piece can be spun into pull rivet nut, second conversion subassembly includes second connecting sleeve, and the claw of clamping in second connecting sleeve is slidably connected, and the front end of claw can lock pull rod, the utility model puts forward a kind of nut gun, and it can be used for the installation of pull rivet nut and pull rivet.

Description

Technical Field

[0001] This utility model relates to the field of riveting fastener installation technology, and in particular to a dual-purpose nut gun. Background Technology

[0002] Rivet nuts and rivets are two commonly used rivet-type fasteners used to lock into round holes. Existing nut guns are mounted on electric screwdrivers or other power tools; the power tool drives the nut gun to rotate and install the rivet nut. Rivets, however, are another type of rivet-type fastener. Unlike rivet nuts, which are installed by rotation, rivets are installed by tension. This often requires a separate set of tensioning power tools to install rivets, resulting in tool redundancy and increased costs. Utility Model Content

[0003] To address the limitation of existing nut guns that can only install rivet nuts but not rivets, this invention proposes a nut gun that can be used for installing both rivet nuts and rivets.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dual-purpose nut gun includes a transmission assembly, a first conversion assembly, and a second conversion assembly. The transmission assembly includes a support sleeve, a rotary screw, and a sliding sleeve. The rotary screw is rotatably connected to the rear end of the support sleeve. The front end of the rotary screw is provided with an external thread. The front end of the rotary screw is provided with multiple first machining surfaces along the circumference to form a transmission head. The sliding sleeve is slidably connected to the front end of the support sleeve and is circumferentially fixed. The rear end of the sliding sleeve is provided with a rear threaded hole adapted to the external thread. The rear end of the rear threaded hole is provided with multiple second machining surfaces along the circumference to form a transmission groove adapted to the transmission head. The front end of the sliding sleeve is provided with a front threaded hole.

[0006] The first conversion component includes a first connecting sleeve and a threaded component, the threaded component being slidably connected in the first connecting sleeve, and the front end of the threaded component being screwed into a rivet nut.

[0007] The second conversion component includes a second connecting sleeve and a gripper slidably connected in the second connecting sleeve, the front end of the gripper being lockable to a pull rod; the nut gun has a first working mode and a second working mode. In the first working mode, the rear end of the first connecting sleeve and the front end of the support sleeve are detachably connected, the rear end of the threaded part is screwed into the front threaded hole, and the transmission head engages with the transmission groove; in the second working mode, the rear end of the second connecting sleeve and the front end of the support sleeve are detachably connected, the rear end of the gripper is screwed into the front threaded hole, and the external thread engages with the rear threaded hole.

[0008] With the above settings, the first conversion component can be installed on the transmission component and used to install rivet nuts. Replacing the first conversion component with the second conversion component allows it to be used to install rivets, thus achieving two uses for one gun.

[0009] Furthermore, the front side of the first machining surface is inclined inward, the transmission head has a multi-faceted pyramidal structure, the second machining surface is parallel to the first machining surface, and the first conversion component also includes a first spring, which is sleeved on the threaded part, the front end of the first spring is connected to the front end of the first connecting sleeve, and the rear end of the first spring is connected to the threaded part.

[0010] The above settings improve the stability of the first working mode.

[0011] Furthermore, the second conversion assembly also includes a second spring, the rear end of which is fixed in the support sleeve, and the front end of which is close to the rear end of the external thread and located in front of the rear end of the external thread.

[0012] The above settings prevent the sliding sleeve from rotating backward to the rear end of the external thread of the rotary screw and getting stuck.

[0013] Furthermore, the support sleeve is provided with a non-circular polygonal boss along its outer periphery. The nut gun also includes a handle, which includes a sleeve and a handle fixedly connected to one side of the sleeve. An anti-rotation block is provided on the inner side of the sleeve. The sleeve is fitted onto the support sleeve and can slide back and forth along the support sleeve. The handle has a free state and a fixed state. In the fixed state, the anti-rotation block in the sleeve cooperates with the polygonal boss, and the sleeve and the support sleeve are circumferentially fixed. In the free state, the anti-rotation block in the sleeve is disengaged from the polygonal boss, and the sleeve and the support sleeve can rotate relative to each other.

[0014] The above settings enhance safety in the first working mode and facilitate the fixing of the support sleeve in the second working mode.

[0015] Furthermore, the nut gun also includes a third spring, which is sleeved on the support sleeve. The front end of the third spring abuts against the sleeve, and the rear end of the third spring is connected to the support sleeve.

[0016] The above settings further enhance the safety of the nut gun in the first working mode.

[0017] Furthermore, the gripper includes a mounting sleeve, a base, a fourth spring, and a clamping sleeve. The rear side of the base can be screwed into the front threaded hole, and the front side of the base is threadedly connected to the mounting sleeve. The front side of the mounting sleeve is provided with a tapered hole that is smaller at the front and larger at the rear. The clamping sleeve includes a support part and a clamping part. The support part has a through hole through which the pull rod can pass. Multiple clamping parts are arranged around the through hole on the front side of the support part for clamping the pull rod. The outer side of the clamping part abuts against the wall of the tapered hole, and the front end of the clamping part protrudes from the front side of the mounting sleeve. The fourth spring is installed between the base and the support part.

[0018] Furthermore, the nut gun also includes a bearing installed between the support sleeve and the rotary screw.

[0019] The above settings reduce the rotational resistance of the rotary screw. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a nut gun as an example.

[0021] Figure 2 This is a schematic diagram of the rotary screw and sliding sleeve in an embodiment.

[0022] Figure 3 for Figure 2 A magnified view of point A.

[0023] Figure 4 This is a schematic diagram of the support sleeve and handle in an embodiment.

[0024] Figure 5 This is a cross-sectional view of the transmission assembly in an embodiment.

[0025] Figure 6 This is a schematic diagram of the first conversion component in an embodiment.

[0026] Figure 7 This is a schematic diagram of the first working mode of the nut gun in an embodiment.

[0027] Figure 8 This is a schematic diagram of the second working mode of the nut gun in an embodiment. Detailed Implementation

[0028] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0029] Figures 1 to 8 A dual-purpose nut gun includes a transmission assembly, a first conversion assembly, and a second conversion assembly. The transmission assembly includes a support sleeve 3, a rotary screw 4, and a sliding sleeve 5. The rotary screw 4 is rotatably connected to the rear end of the support sleeve 3. The front end of the rotary screw 4 is provided with an external thread 6. The front end of the rotary screw 4 is provided with multiple first machining surfaces 7 along the circumferential direction to form a transmission head 8. The sliding sleeve 5 is slidably connected to the front end of the support sleeve 3 and is circumferentially fixed. The rear end of the sliding sleeve 5 is provided with a rear threaded hole 9 that matches the external thread 6. The rear end of the rear threaded hole 9 is provided with multiple second machining surfaces 10 along the circumferential direction to form a transmission groove 11 that matches the transmission head 8. The front end of the sliding sleeve 5 is provided with a front threaded hole 12.

[0030] The first conversion component includes a first connecting sleeve 13 and a threaded part 14. The threaded part 14 is slidably connected in the first connecting sleeve 13, and the front end of the threaded part 14 can be screwed into a rivet nut.

[0031] The second conversion component includes a second connecting sleeve 16 and a gripper 17 slidably connected in the second connecting sleeve 16, the front end of the gripper 17 being able to lock the pull rod 18.

[0032] The nut gun has a first working mode and a second working mode. In the first working mode, the rear end of the first connecting sleeve 13 is detachably connected to the front end of the support sleeve 3, the rear end of the threaded part 14 is screwed into the front threaded hole 12, and the transmission head 8 cooperates with the transmission groove 11. In the second working mode, the rear end of the second connecting sleeve 16 is detachably connected to the front end of the support sleeve 3, the rear end of the clamp 17 is screwed into the front threaded hole 12, and the external thread 6 cooperates with the rear threaded hole 9.

[0033] With the above settings, the first conversion component can be installed on the transmission component and used to install rivet nuts. Replacing the first conversion component with the second conversion component allows it to be used to install rivets, thus achieving two uses for one gun.

[0034] In this application, the rotary screw 4 is coaxially rotatably connected to the rear end of the support sleeve 3. The rotary screw 4 is axially fixed in the support sleeve 3, meaning it will not move back and forth. The cross-section of the rear end of the rotary screw 4 is hexagonal, facilitating connection to the electric gun. The front end of the rotary screw 4 is provided with the aforementioned external thread 6 and a transmission head 8. The transmission head 8 is machined and ground on the front end face of the rotary screw 4, such as... Figure 3 A portion of the external thread 6 is ground off to form the first machining surface 7 and the transmission head 8. The sliding sleeve 5 is basically coaxially slidably connected in the support sleeve 3. The sliding sleeve 5 is located on the front side of the rotary screw 4. The outer rear end of the sliding sleeve 5 is hexagonal. The sliding sleeve 5 in the support sleeve 3 is also hexagonal in the movement area of ​​the sliding sleeve 5. The sliding sleeve 5 can only move back and forth in the support sleeve 3 and cannot rotate. At the rear end of the rear threaded hole 9 of the sliding sleeve 5, a portion of the internal thread is ground off to form the second machining surface 10 and the transmission groove 11. The shape of the transmission groove 11 is adapted to the shape of the transmission head 8 to facilitate the transmission between the rotary screw 4 and the sliding sleeve 5. In the first working mode, the transmission head 8 at the front end of the rotary screw 4 cooperates with the transmission groove 11 at the rear end of the sliding sleeve 5. The rotary screw 4 can transmit torque forward through the transmission head 8 and the transmission groove 11 to drive the sliding sleeve 5 to rotate synchronously.

[0035] The first conversion assembly is used to install rivet nuts, such as Figure 1 The rear end of the first connecting sleeve 13 can be detachably connected to the front end of the support sleeve 3 by means of threads or snaps. In this application, the rear end of the first connecting sleeve 13 is specifically detachably connected to the front end of the support sleeve 3 by means of threads. The threaded part 14 is coaxially arranged in the first connecting sleeve 13. The threaded part 14 can move back and forth in the first connecting sleeve 13 and can rotate freely in the first connecting sleeve 13. The front end of the threaded part 14 protrudes from the front end of the first connecting sleeve 13 so as to be threadedly connected to the rivet nut. The rear end of the threaded part 14 can be screwed into the front end of the sliding sleeve 5 through the front threaded hole 12.

[0036] The second conversion component is used to install rivets, such as Figure 1The structure of the second connecting sleeve 16 is basically the same as that of the first connecting sleeve 13. The gripper 17 can move back and forth in the second connecting sleeve 16. The rear end of the gripper 17 can be screwed into the front end of the sliding sleeve 5 through the front threaded hole 12.

[0037] The nut gun usage process of this application: Before the first conversion component and the second conversion component are installed, the transmission component of this application, such as Figure 5 Rotate the rotary screw 4, keeping the support sleeve 3 and sliding sleeve 5 stationary. The rotary screw 4 and sliding sleeve 5 rotate relative to each other, causing the sliding sleeve 5 to move forward along the support sleeve 3 until it disengages from the external thread 6 at the front end of the rotary screw 4. The transmission groove 11 at the rear end of the sliding sleeve 5 moves to the transmission head 8 and engages with it. The front end of the sliding sleeve 5 protrudes from the front end of the support sleeve 3. When installing the first conversion assembly, keep the first connecting sleeve 13 stationary, tighten the rear end of the threaded part 14 through the front threaded hole 12 onto the front end of the sliding sleeve 5, and then tighten the rear end of the first connecting sleeve 13 onto the front end of the support sleeve 3. Figure 7 The rear end of the rotary screw 4 is connected to the electric gun. After the electric gun is turned on, the threaded part 14 is driven to rotate through the rotary screw 4, the transmission head 8, the transmission groove 11, and the sliding sleeve 5 to complete the installation of the rivet nut. Since the outer side of the rear end of the sliding sleeve 5 is polygonal, when the sliding sleeve 5 rotates, it will drive the outer support sleeve 3 and the first connecting sleeve 13 at the front end of the support sleeve 3 to rotate synchronously. That is, the entire transmission assembly and the first conversion assembly will rotate.

[0038] When disassembling the first conversion assembly, first unscrew the first connecting sleeve 13 from the front end of the support sleeve 3, and then unscrew the threaded part 14 from the front end of the sliding sleeve 5. When replacing the second conversion assembly, apply a backward pushing force to the sliding sleeve 5 by hand, so that the external thread 6 at the front end of the rotary screw 4 abuts against the rear end of the rear threaded hole 9 of the sliding sleeve 5 through the transmission groove 11. After the rotary screw 4 rotates, the rotary screw 4 and the sliding sleeve 5 rotate relative to each other. The front end of the rotary screw 4 is screwed into the sliding sleeve 5 through the external thread 6. The rotary screw 4 is slidably connected to the sliding sleeve 5 through the external thread 6 and the rear threaded hole 9. Tighten the rear end of the clamp 17 to the front end of the sliding sleeve 5 through the front threaded hole 12, and tighten the rear end of the second connecting sleeve 16 to the front end of the support sleeve 3. Figure 8 The rivet rod 18 extends into the front end of the second connecting sleeve 16 and is locked in the clamp 17. When the electric gun is running, the fixed support sleeve 3 remains stationary to prevent the sliding sleeve 5 from rotating. When the rotary screw 4 rotates, the sliding sleeve 5 and the rotary screw 4 rotate relative to each other to drive the sliding sleeve 5 to move backward. The sliding sleeve 5 drives the clamp 17 to move backward to complete the pull action of the rivet rod 18 and complete the installation of the rivet.

[0039] As one implementation, the front side of the first machining surface 7 is inclined inward, the transmission head 8 has a multi-faceted pyramidal structure, the second machining surface 10 is parallel to the first machining surface 7, and the first conversion assembly also includes a first spring 19, which is sleeved on the threaded part 14. The front end of the first spring 19 is connected to the front end of the first connecting sleeve 13, and the rear end of the first spring 19 is connected to the threaded part 14.

[0040] The above settings improve the stability of the first working mode.

[0041] like Figure 3 In this application, the transmission head 8 at the front end of the rotary screw 4 is specifically a hexagonal pyramid structure. Due to the inward inclination of the front side of the first machined surface 7, such as Figure 6 When the rotary screw 4 drives the threaded component 14 to rotate synchronously through the transmission head 8, transmission groove 11, and sliding sleeve 5, the transmission head 8 applies a forward thrust to the sliding sleeve 5 through the first machining surface 7 and the second machining surface 10 to prevent the sliding sleeve 5 from moving backward and engaging with the external thread 6 at the front end of the rotary screw 4. This thrust is counteracted by the first spring 19, which prevents the sliding sleeve 5 from moving forward under the thrust and disengaging from the transmission head 8, thus maintaining a stable transmission connection between the rotary screw 4 and the sliding sleeve 5.

[0042] As one implementation, the second conversion component also includes a second spring 20, the rear end of which is fixed in the support sleeve 3, and the front end of which is close to the rear end of the external thread 6 and located in front of the rear end of the external thread 6.

[0043] The above settings prevent the sliding sleeve 5 from rotating backward to the rear end of the external thread 6 of the rotary screw 4 and getting stuck.

[0044] Initially in the second working mode, the rear end of the sliding sleeve 5 is not in contact with the front end of the second spring 20. The electric gun drives the rotary screw 4, and the sliding sleeve 5 moves backward along the support sleeve 3, approaching the second spring 20. When the rear end of the sliding sleeve 5 moves to the rear end of the external thread 6 of the rotary screw 4 (but has not yet moved to the unthreaded area of ​​the rotary screw 4), the rear end of the sliding sleeve 5 abuts against the front end of the second spring 20. The second spring 20 is compressed and applies a forward thrust to the sliding sleeve 5, preventing the sliding sleeve 5 from continuing to move backward. When the thrust increases to a certain extent... After the rotation, the sliding sleeve 5 and the rotary screw 4 can no longer rotate relative to each other. The sliding sleeve 5 will rotate synchronously with the rotary screw 4. That is, the transmission assembly and the second conversion assembly will rotate synchronously. The gripper 17 and the sliding sleeve 5 will stop moving backward. At this time, the rear end of the sliding sleeve 5 is still on the external thread 6 at the front end of the rotary screw 4. When the electric gun rotates in the opposite direction, the sliding sleeve 5 and the rotary screw 4 can rotate relative to each other smoothly to drive the sliding sleeve 5 to move forward smoothly, preventing the sliding sleeve 5 from getting stuck at the rear end of the external thread 6 at the front end of the rotary screw 4.

[0045] As one implementation, the support sleeve 3 is provided with a non-circular polygonal boss 21 along its outer periphery. The nut gun also includes a handle, which includes a sleeve 22 and a handle 23 fixedly connected to one side of the sleeve 22. An anti-rotation block 24 is provided on the inner side of the sleeve 22. The sleeve 22 is fitted onto the support sleeve 3 and can slide back and forth along the support sleeve 3. The handle has a free state and a fixed state. In the fixed state, the anti-rotation block 24 in the sleeve 22 cooperates with the polygonal boss 21, and the sleeve 22 and the support sleeve 3 are circumferentially fixed. In the free state, the anti-rotation block 24 in the sleeve 22 is disengaged from the polygonal boss 21, and the sleeve 22 and the support sleeve 3 can rotate relative to each other.

[0046] The above settings enhance safety in the first working mode and facilitate the fixing of the support sleeve 3 in the second working mode.

[0047] In the first working mode, the nut gun of this application, because the transmission assembly and the first conversion assembly rotate synchronously, the anti-rotation block 24 on the inner side of the sliding sleeve 5 does not engage with the polygonal boss 21 on the outer side of the support sleeve 3. When the support sleeve 3 of the transmission assembly rotates, the handle does not rotate to prevent the handle from hitting people. In the second working mode, because the rotary screw 4 and the sliding sleeve 5 need to rotate relative to each other, in order to prevent the sliding sleeve 5 from rotating with the rotary screw 4, the sliding sleeve 22 along the support sleeve 3 is slidable, so that the anti-rotation block 24 inside the sleeve 22... 4 engages with the polygonal boss 21, and the handle 23 is gripped to prevent the support sleeve 3 from rotating, thereby preventing the sliding sleeve 5 from rotating; In the nut gun of this application, the state of the handle is switched by sliding the sleeve 22 back and forth. Specifically, when the sleeve 22 is slid forward, the sleeve 22 disengages from the polygonal boss 21, and the handle is in a free state. When the sleeve 22 is slid backward, the anti-rotation block 24 inside the sleeve 22 engages with the polygonal boss 21, and the handle and the support sleeve 3 cannot rotate relative to each other. When the handle is gripped, the support sleeve 3 is prevented from rotating.

[0048] As one implementation, the nut gun also includes a third spring 25, which is sleeved on the support sleeve 3. The front end of the third spring 25 abuts against the sleeve 22, and the rear end of the third spring 25 is connected to the support sleeve 3.

[0049] The above settings further enhance the safety of the nut gun in the first working mode.

[0050] In the first working mode, the third spring 25 abuts against the rear side of the sleeve 22, and the front end of the third spring 25 can slide relative to the rear end face of the sleeve 22. When the support sleeve 3 and the third spring 25 rotate, the third spring 25 slides relative to the rear end face of the sleeve 22, and the sleeve 22 will not rotate. At the same time, the third spring 25 can prevent the sleeve 22 from accidentally sliding backward and engaging with the polygonal boss 21, thereby improving safety in the first working mode.

[0051] In one implementation, the gripper 17 includes a mounting sleeve 171, a base 172, a fourth spring 173, and a clamping sleeve 174. The rear side of the base 172 can be screwed into the front threaded hole 12, and the front side of the base 172 is threadedly connected to the mounting sleeve 171. The front side of the mounting sleeve 171 is provided with a tapered hole that is smaller at the front and larger at the rear. The clamping sleeve 174 includes a support part 1741 and a clamping part 1742. The support part 1741 has a through hole through which the pull rod 18 can pass. Multiple clamping parts 1742 are arranged around the through hole on the front side of the support part 1741 for clamping the pull rod 18. The outer side of the clamping part 1742 abuts against the wall of the tapered hole, and the front end of the clamping part 1742 protrudes from the front side of the mounting sleeve 171. The fourth spring 173 is installed between the base 172 and the support part 1741.

[0052] The clamp 174 of this application is an integrally formed structure. The outer side of the clamping part 1742 is parallel to the wall of the tapered hole. The base 172 can be unscrewed from the rear side of the mounting sleeve 171 to facilitate the insertion of the fourth spring 173 and the clamp 174 into the mounting sleeve 171. In the second working mode, the clamp 174 abuts against the wall of the tapered hole under the action of the fourth spring 173, and the outer side of the clamping part 1742 fits against the wall of the tapered hole. Under the action of the tapered hole, the clamping part 1742 closes, and the rear side of the base 172 is screwed into the front threaded hole 12 at the front end of the sliding sleeve 5. The sliding sleeve 5 drives the jaw 17 to move forward. After the front end of the clamping part 1742 abuts against the front end of the second connecting sleeve 16, the clamp 174 can no longer move forward, and the sliding sleeve 5 continues to move forward. Moving forward, the base 172 and mounting sleeve 171 move forward, while the clamping sleeve 174 remains stationary. The outer side of the clamping part 1742 disengages from the wall of the conical hole. After losing the thrust of the conical hole, the clamping sleeve 174 opens outward under the elasticity of its own material. That is, the clamping part 1742 opens, and the end of the pull rod 18 can be placed between the clamping parts 1742 through the second connecting sleeve 16. The electric gun rotates in the opposite direction, driving the sliding sleeve 5 to move backward. The sliding sleeve 5 drives the jaw 17 to move backward. After the front end of the clamping part 1742 disengages from the front end of the first connecting sleeve 13, the fourth spring 173 pushes the clamping sleeve 174 forward, and the outer side of the clamping part 1742 is again attached to the conical hole. Under the thrust of the conical hole, the clamping part 1742 closes and locks the pull rod 18. Figure 8 .

[0053] As one implementation, the nut gun also includes a bearing 26 installed between the support sleeve 3 and the rotary screw 4.

[0054] The above settings reduce the rotational resistance of the rotary screw 4.

[0055] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A dual-purpose nut gun, characterized in that, The system includes a transmission assembly, a first conversion assembly, and a second conversion assembly. The transmission assembly includes a support sleeve, a rotary screw, and a sliding sleeve. The rotary screw is rotatably connected to the rear end of the support sleeve. The front end of the rotary screw is provided with an external thread. The front end of the rotary screw is provided with multiple first machining surfaces along the circumferential direction to form a transmission head. The sliding sleeve is slidably connected to the front end of the support sleeve and is circumferentially fixed. The rear end of the sliding sleeve is provided with a rear threaded hole adapted to the external thread. The rear end of the rear threaded hole is provided with multiple second machining surfaces along the circumferential direction to form a transmission groove adapted to the transmission head. The front end of the sliding sleeve is provided with a front threaded hole. The first conversion component includes a first connecting sleeve and a threaded component, wherein the threaded component is slidably connected in the first connecting sleeve, and the front end of the threaded component can be screwed into a rivet nut; The second conversion component includes a second connecting sleeve and a gripper slidably connected in the second connecting sleeve, the front end of the gripper being lockable to a pull rod; The nut gun has a first working mode and a second working mode. In the first working mode, the rear end of the first connecting sleeve and the front end of the support sleeve are detachably connected, the rear end of the threaded part is screwed into the front threaded hole, and the transmission head cooperates with the transmission groove. In the second working mode, the rear end of the second connecting sleeve and the front end of the support sleeve are detachably connected, the rear end of the clamp is screwed into the front threaded hole, and the external thread cooperates with the rear threaded hole.

2. The dual-purpose nut gun according to claim 1, characterized in that, The front side of the first machining surface is inclined inward, the transmission head has a multi-faceted pyramidal structure, the second machining surface is parallel to the first machining surface, the first conversion component also includes a first spring, the first spring is sleeved on the threaded part, the front end of the first spring is connected to the front end of the first connecting sleeve, and the rear end of the first spring is connected to the threaded part.

3. A dual-purpose nut gun according to claim 2, characterized in that, The second conversion assembly also includes a second spring, the rear end of which is fixed in the support sleeve, and the front end of which is close to the rear end of the external thread and located in front of the rear end of the external thread.

4. A dual-purpose nut gun according to claim 2, characterized in that, The support sleeve has a non-circular polygonal boss along its outer periphery. The nut gun also includes a handle, which includes a sleeve and a handle fixedly connected to one side of the sleeve. An anti-rotation block is provided on the inner side of the sleeve. The sleeve is fitted onto the support sleeve and can slide back and forth along the support sleeve. The handle has a free state and a fixed state. In the fixed state, the anti-rotation block in the sleeve cooperates with the polygonal boss, and the sleeve and the support sleeve are circumferentially fixed. In the free state, the anti-rotation block in the sleeve is disengaged from the polygonal boss, and the sleeve and the support sleeve can rotate relative to each other.

5. A dual-purpose nut gun according to claim 4, characterized in that, The nut gun also includes a third spring, which is sleeved on the support sleeve. The front end of the third spring abuts against the sleeve, and the rear end of the third spring is connected to the support sleeve.

6. A dual-purpose nut gun according to claim 4, characterized in that, The gripper includes a mounting sleeve, a base, a fourth spring, and a clamping sleeve. The rear side of the base can be screwed into the front threaded hole. The front side of the base is threaded to the mounting sleeve. The front side of the mounting sleeve is provided with a tapered hole that is smaller at the front and larger at the rear. The clamping sleeve includes a support part and a clamping part. The support part has a through hole through which the pull rod can pass. A plurality of clamping parts are arranged around the through hole on the front side of the support part for clamping the pull rod. The outer side of the clamping part abuts against the wall of the tapered hole. The front end of the clamping part protrudes from the front side of the mounting sleeve. The fourth spring is installed between the base and the support part.

7. A dual-purpose nut gun according to claim 1, characterized in that, The nut gun also includes a bearing installed between the support sleeve and the rotary screw.

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