A steel wire nipple mounting tool for use in narrow spaces

CN224643522UActive Publication Date: 2026-08-18HENAN PINGYUAN OPTO ELECTRONICS CO LTD
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Patent Information

Application Number
CN202521506882.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-17
Publication Date
2026-08-18
Estimated Expiration
2035-07-17

AI Technical Summary

Technical Problem

现有的标准型钢丝螺套扳手在设计时,通常是针对常规的安装空间环境,其结构和尺寸使得它在安装空间有限的壳体内无法正常施展冲断作业

Benefits of technology

[0025] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a steel wire sleeve installation tool for operation in narrow space belongs to steel wire sleeve installation technical field, solves the problem that steel wire sleeve is not easy to install and break in narrow installation space. The steel wire sleeve installation tool of the utility model, include: positioning piece, inside have the through passageway hole, be used for placing steel wire sleeve, movable piece, can insert the passageway hole and install steel wire sleeve or install after completing from the passageway hole and remove, auxiliary break element, one end with the movable piece of removal is detachably connected, the other end is used for receiving external force and through movable piece and force transmission to the installation handle of steel wire sleeve and break. The utility model adds auxiliary break element, makes the one end of auxiliary break element set up in the top of movable piece, the other end can extend to the outside of shell, facilitates the force operation of auxiliary break element on the outside of shell, avoids the problem that the force break of force component is inconvenient to operate in shell.
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Description

Technical Field

[0001] This utility model relates to the field of wire thread insert installation, and in particular to a wire thread insert installation tool for operation in confined spaces. Background Technology

[0002] In the field of mechanical manufacturing and assembly, the assembly of complex housing parts is a crucial step, and its quality directly affects the performance and reliability of the entire mechanical product. Threaded connections are one of the common connection methods in the assembly of complex housing parts. However, housing threads face many problems in practical use. For example, during frequent assembly and disassembly, the threads are prone to wear, leading to loose connections and affecting the stability and working accuracy of the entire assembly. Furthermore, in some special working environments, the threads may also be subject to corrosion, further reducing the reliability of the connection.

[0003] To effectively protect the housing threads and improve the reliability of screw connections, machining wire thread insert holes and installing wire thread inserts on complex housing parts has become a widely used solution.

[0004] During the installation of wire thread inserts, a specialized tool—a wire thread insert wrench—is required. The main function of the wire thread insert wrench is to accurately secure the wire thread insert into the wire thread insert hole on the housing part, ensuring accurate positioning and a secure installation. After the initial installation of the wire thread insert, the installation shank at the end of the insert needs to be broken off. This step is crucial because the presence of the installation shank may affect the subsequent installation of screws and, to some extent, the fit accuracy between the wire thread insert and the housing part.

[0005] However, in actual assembly scenarios, it is common to encounter situations where wire thread inserts need to be installed within housings with limited installation space. For example, in some precision instruments and equipment, the internal structure of the housing is compact, and the spacing between various components is small, which poses a significant challenge to the installation of wire thread inserts. Existing standard wire thread insert wrenches are typically designed for conventional installation space environments, and their structure and dimensions prevent them from performing proper cutting operations within housings with limited installation space.

[0006] This limitation severely affects the installation efficiency and quality of wire thread inserts for complex housing parts in limited installation space, increases the difficulty and cost of assembly, and may even prevent the entire assembly work from proceeding smoothly. Utility Model Content

[0007] Based on the above analysis, the present invention aims to provide a wire thread insert installation tool for operation in confined spaces, in order to solve the technical problem that there is no tool in the prior art that is simple in structure and easy to operate for installing wire thread inserts in specific confined spaces.

[0008] This utility model provides a wire thread insert installation tool for working in confined spaces, comprising:

[0009] A positioning element having a through-hole inside, the positioning element being used to place a wire thread insert;

[0010] The movable part can be inserted into the channel hole to install the wire thread sleeve or removed from the channel hole after installation;

[0011] The auxiliary punching component has one end detachably connected to the removed movable part, and the other end is used to receive external force and transmit the force to the installation shank of the wire thread insert through the movable part for punching.

[0012] Furthermore, the connection between the top of the movable member and the auxiliary punching member has a limiting structure that restricts the movement of the auxiliary punching member relative to the movable member.

[0013] Furthermore, the movable part includes a shaft core and a mounting and fixing part, one end of the shaft core has a punched-out part, and the other end is connected to the mounting and fixing part, which protrudes radially from the channel hole;

[0014] The limiting structure includes a first locking part and a second locking part that engage with each other. The first locking part is disposed on the top of the mounting and fixing part, and the second locking part is disposed on the auxiliary punching member.

[0015] Furthermore, the first snap-fit ​​portion is recessed on the top of the mounting and fixing portion, and the first snap-fit ​​portion includes a plurality of intersecting grooves. The second snap-fit ​​portion protrudes from the auxiliary punching member and is limited and snapped into the groove.

[0016] Furthermore, the peripheral wall of the mounting and fixing part is provided with a plurality of through holes at intervals, the through holes being used to install the connecting rod, and the first snap-fit ​​part being located above the through holes;

[0017] The second snap-fit ​​portion includes a cavity provided on the auxiliary punching member, and the second snap-fit ​​portion is sleeved and snapped onto the outside of the first snap-fit ​​portion.

[0018] Furthermore, the second snap-fit ​​portion is provided on one end of the auxiliary punching member and is at a certain distance from the end face of one end of the auxiliary punching member.

[0019] Furthermore, the auxiliary punching component includes an auxiliary punching plate, the second snap-fit ​​portion is disposed on the side wall of the auxiliary punching plate, and the punching portion is a punching groove disposed on the shaft core.

[0020] Furthermore, the positioning element includes a sleeve body and multiple inserts, and the channel hole includes a first channel section disposed in the sleeve body and a second channel section disposed inside the inserts; the inner diameter of the second channel section is smaller than that of the first channel section;

[0021] The sleeve body has a recessed mounting cavity that is axially connected to the first channel segment. Multiple inserts have different apertures, and one of the multiple inserts is installed in the mounting cavity.

[0022] Furthermore, the outer periphery of the insert is connected to the fine thread of the inner peripheral wall of the mounting cavity, and the second channel section inside the insert has an ST thread;

[0023] The movable component includes a first shaft section that passes through a first channel section and a second shaft section with a reduced outer diameter. The second shaft section can be inserted into the second channel section to drive the wire thread sleeve to rotate and unscrew in the second channel section.

[0024] Furthermore, the axial end face of the insert is provided with a mounting groove for the installation and removal of the insert.

[0025] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0026] (1) In this embodiment, an auxiliary punching component is added to the wire thread insert installation tool. After the wire thread insert is installed into the base hole in the housing, the movable component is inserted into the wire thread insert. One end of the auxiliary punching component is set on the top of the movable component, and the other end extends to the outside of the housing. This facilitates the application of force to the auxiliary punching component from the outside of the housing, avoiding the problem that the internal space of the housing is small and it is inconvenient to operate the force application component to punch the wire thread insert. This breaks through the bottleneck of punching operation under space constraints of traditional tools and greatly expands the application range of wire thread inserts.

[0027] (2) The limiting structure of this embodiment provides a stable connection and support for the auxiliary punching part and the moving part, reduces the shaking and vibration during operation, reduces the difficulty of operation and labor intensity, avoids punching failure caused by the sliding of the auxiliary punching part or accidental damage to surrounding parts or operators, and significantly improves the accuracy and success rate of punching operation.

[0028] (3) By replacing the insert, this embodiment enables the wire thread insert installation tool to be compatible with the installation of various specifications of wire thread inserts, solving the problem of the limited specifications of existing tooling for installing wire thread inserts. The modular design reduces the number of special tools, and the insert can be replaced individually, reducing maintenance costs.

[0029] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the description and accompanying drawings, which are particularly pointed out. Attached Figure Description

[0030] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0031] Figure 1 This is a schematic diagram illustrating the installation process of the wire thread insert installation tool according to an embodiment of this application;

[0032] Figure 2 This is a cross-sectional schematic diagram of a positioning component, a movable component, and a wire thread sleeve assembled according to an embodiment of this application.

[0033] Figure 3 This is a cross-sectional schematic diagram of the moving part and the wire thread sleeve in an embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the breaking process of the wire thread insert installation tool in an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the assembly of an auxiliary punching component and a moving component according to an embodiment of this application;

[0036] Figure 6 For this application Figure 5 A schematic diagram of the moving parts;

[0037] Figure 7 For this application Figure 5 A schematic diagram of the auxiliary punching component;

[0038] Figure 8 This is a schematic diagram illustrating the assembly of an auxiliary punching component and a moving component according to another embodiment of this application;

[0039] Figure 9 For this application Figure 8 A schematic diagram of the auxiliary punching component;

[0040] Figure 10 This is a schematic diagram of another active component in an embodiment of this application;

[0041] Figure 11 For this application Figure 10 A schematic diagram of a structural explosion;

[0042] Figure 12This is a cross-sectional view of another embodiment of the present application when the positioning component, the movable component, and the wire thread sleeve are assembled.

[0043] Figure 13 This is a schematic diagram of the auxiliary punching member and the movable member installed inside the housing components according to an embodiment of this application.

[0044] Figure label:

[0045] 1. Positioning element; 11. Channel hole; 111. First channel section; 112. Second channel section; 12. Sleeve body; 121. Mounting cavity; 13. Insert; 131. Mounting groove;

[0046] 2. Moving part; 21. Mounting and fixing part; 211. First snap-fit ​​part; 212. Through hole; 22. Shaft core; 221. First shaft section; 222. Second shaft section; 2221. Punch-off part;

[0047] 3. Auxiliary punching component; 31. Second snap-fit ​​part; 4. Wire thread sleeve; 5. Housing. Detailed Implementation

[0048] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0049] Example 1:

[0050] This embodiment provides a wire thread insert installation tool for operations in confined spaces. The wire thread insert 4 is a helical coil with an elastic internal thread, used to embed into a metallic or non-metallic material matrix to form a high-precision, high-strength, and wear-resistant threaded hole. It is widely used in machinery manufacturing, aerospace, and other fields to enhance the strength and wear resistance of threaded connections. The wire thread insert installation tool of this embodiment is used to accurately and efficiently install the wire thread insert 4 into a pre-drilled matrix hole, and then breaks off the installation shank at the tail of the wire thread insert 4.

[0051] like Figures 1 to 4 as well as Figure 13 As shown, the wire thread insert installation tool includes a positioning component 1, a movable component 2, and an auxiliary punching component 3.

[0052] The positioning component 1 has a through-hole 11 inside for placing the wire thread insert 4.

[0053] The movable part 2 can be inserted into the wire thread sleeve 4 in the channel hole 11. By operating the movable part 2 to rotate, the wire thread sleeve 4 can be rotated and installed into the base hole, or it can be removed from the channel hole 11 after installation. It is a component that works with the auxiliary punching part 3 to complete the punching operation of the installation handle.

[0054] One end of the auxiliary punching component 3 is detachably connected to the movable component 2 removed from the channel hole 11, and the other end is used to receive external force to press the movable component 2 to move and punch off the mounting handle of the wire thread sleeve 4.

[0055] The entire installation operation of the wire thread insert 4 includes the installation process and the punching process.

[0056] The installation process of the wire thread insert 4 includes: First, placing the positioning member 1 in a suitable position within the confined space of the housing 5, ensuring that the channel hole 11 of the positioning member 1 is aligned with the base hole on the housing 5 where the wire thread insert 4 needs to be installed; then, placing the wire thread insert 4 into the channel hole 11 of the positioning member 1, and inserting the movable member 2 into the wire thread insert 4 of the positioning member 1; finally, rotating the movable member 2 causes the wire thread insert 4 to rotate within the channel hole 11 of the movable member 2 and gradually screw it into the base hole until the wire thread insert 4 is fully installed in the base hole. After the wire thread insert 4 is installed, removing the movable member 2 from the channel hole 11 of the positioning member 1 and removing the positioning member 1.

[0057] The process of breaking the wire thread insert 4 includes: inserting the bottom end of the movable part 2 into the wire thread insert 4 inside the base hole, then installing one end of the auxiliary breaking part 3 on the top of the movable part 2, so that the other end of the auxiliary breaking part 3 extends laterally to the outside of the housing 5, applying force to the auxiliary breaking part 3 located outside the housing 5 through the force-applying component, and transmitting the external force to the movable part 2 through the auxiliary breaking part 3, causing the movable part 2 to move downward to break the installation handle at the tail of the wire thread insert 4, thus completing the installation operation of the wire thread insert 4 in a narrow space.

[0058] This embodiment adds an auxiliary punching component 3 to the wire thread insert 4 installation tool. After the wire thread insert 4 is installed into the base hole in the housing 5, the movable component 2 is inserted into the wire thread insert 4, so that one end of the auxiliary punching component 3 is set on the top of the movable component 2 and the other end extends to the outside of the housing 5. This facilitates the application of force to the auxiliary punching component 3 from the outside of the housing 5, avoiding the problem of the confined space inside the housing and the inconvenience of operating the force-applying component to punch through the narrow space. This breaks through the bottleneck of punching operation under the space limitation of traditional tools and greatly expands the application range of the wire thread insert 4.

[0059] The force-applying components include hammers, electric hammers, etc.

[0060] The positioning element 1 is sleeve-shaped, with a channel hole 11 extending axially through the middle of the sleeve. The channel hole 11 includes a first channel section 111 and a second channel section 112 connected axially in sequence. The inner diameter of the second channel section 112 is smaller than that of the first channel section 111, and it is used for positioning and fitting the wire thread insert 4.

[0061] The movable part 2 includes a shaft core 22 and a mounting and fixing part 21. One end of the shaft core 22 has a punched-out part 2221. After the wire thread sleeve 4 is installed, the end of the shaft core 22 with the punched-out part 2221 is inserted into the wire thread sleeve 4 in the base hole to punch it out.

[0062] The other end of the shaft core 22 is connected to the mounting and fixing part 21, which protrudes radially from the channel hole 11. This serves both to limit the movement of the movable part 2 on the positioning part 1 and to facilitate cooperation with the auxiliary punching part 3. Multiple through holes 212 are spaced apart on the peripheral wall of the mounting and fixing part 21 for installing the connecting rod to screw the movable part 2. The mounting and fixing part 21 can be used to screw and install the wire thread sleeve 4, and can also be used with the auxiliary punching part 3 to punch off the mounting handle.

[0063] The punched portion 2221 at one end of the shaft core 22 is flat, grooved, conical, or spherical, and is used to directly contact the mounting shank of the wire thread sleeve 4 and transmit the punching force.

[0064] The movable part 2 includes a first shaft section 221 and a second shaft section 222 with a reduced outer diameter. The first shaft section 221 passes through the first channel section 111, and the second shaft section 222 can extend into the second channel section 112 to drive the wire thread sleeve 4 to rotate and unscrew in the second channel section 112.

[0065] The punched section 2221 is a punched groove. Preferably, the punched groove is a T-shaped groove. During installation, the second shaft section 222 of the shaft core 22 is inserted into the wire thread sleeve 4 in the positioning member 1, so that the punched groove is engaged with the installation handle. By rotating the connecting rod of the installation fixing part 21, the wire thread sleeve 4 is rotated and screwed into the base hole for installation.

[0066] Example 2

[0067] like Figures 10 to 12 As shown, the difference between this embodiment and Embodiment 1 is that the positioning member 1 includes a sleeve body 12 and multiple inserts 13. The channel hole 11 includes a first channel section 111 disposed in the sleeve body 12 and a second channel section 112 disposed inside the inserts 13. During installation, the second channel section 112 of the positioning member 1 is located below the first channel section 111.

[0068] The lower end face of the sleeve body 12 has a recessed mounting cavity 121, which is axially connected to the first channel section 111. Multiple inserts 13 have through holes of different diameters, which can serve as the second channel section 112. One of the multiple inserts 13 is selectively installed in the mounting cavity 121, thereby changing the diameter of the second channel section 112 of the positioning member 1 by selecting different inserts 13.

[0069] This embodiment, by replacing the insert 13, enables the installation tool for the wire thread insert 4 to be compatible with the installation of various specifications of wire thread inserts 4 (such as M2-M8), solving the problem of the limited specifications of existing tooling for installing wire thread inserts 4. The modular design reduces the number of special tools, and the insert 13 can be replaced individually, reducing maintenance costs.

[0070] The sleeve body 12 is cylindrical or square. The mounting cavity 121 is recessed at the bottom of the sleeve body 12. The outer diameter of the positioning member 1 is designed with a textured structure for easy handling by the operator. The outer side of the insert 13 is prismatic or cylindrical.

[0071] To ensure secure installation of insert 13, the outer periphery of insert 13 is connected to the inner peripheral wall of mounting cavity 121 by fine thread. The second channel section 112 within insert 13 has ST thread.

[0072] The insert 13 has an axial end face with a mounting groove 131 to facilitate the installation and removal of the insert 13 from the sleeve body 12. The mounting groove 131 is a straight groove.

[0073] Example 3

[0074] When force is applied to the auxiliary punching component 3, the auxiliary punching component 3 is prone to shifting from the top of the movable component 2, resulting in inaccurate operation or scratching the operator.

[0075] In view of this, further, such as Figures 5 to 9 As shown, this embodiment has a limiting structure at the connection between the top of the movable part 2 and the auxiliary punching part 3 to restrict the movement of the auxiliary punching part 3 relative to the movable part 2.

[0076] The limiting structure in this embodiment provides a stable connection and support for the auxiliary punching component 3 and the movable component 2, reducing shaking and vibration during operation, lowering the difficulty of operation and labor intensity, avoiding punching failure caused by the sliding of the auxiliary punching component 3 or accidental damage to surrounding components or operators, and significantly improving the accuracy and success rate of punching operation.

[0077] The limiting structure in this embodiment specifically includes threaded connections or snap-fit ​​connections.

[0078] The limiting structure includes a first locking part 211 and a second locking part 31 that engage with each other. The first locking part 211 is located on the top of the mounting and fixing part 21, and the second locking part 31 is located on the auxiliary punching member 3.

[0079] The limiting structure in this embodiment is a snap-fit ​​structure set on the top of the mounting and fixing part 21 and the auxiliary punching part 3, which can realize quick assembly and disassembly without complicated operation, and is especially suitable for scenarios in confined spaces where tools need to be changed frequently.

[0080] like Figures 5 to 7As shown, in one embodiment, the first engaging portion 211 is recessed into the top of the mounting and fixing portion 21. The first engaging portion 211 includes multiple intersecting grooves. The second engaging portion 31 protrudes from the auxiliary punch 3 and is locked into the groove. Both ends of each groove penetrate the peripheral wall of the mounting and fixing portion 21.

[0081] The second snap-fit ​​portion 31 includes a rib that extends along the length of the auxiliary punch 3, and the length of the rib is greater than or equal to the length of any groove. The second snap-fit ​​portion 31 can also match the shape of multiple intersecting grooves, with multiple ribs intersecting each other.

[0082] Specifically, the first engaging part 211 is formed by three intersecting grooves, and the second engaging part 31 is a rib extending along the length of the auxiliary punch. The groove width on the movable part 2 is slightly larger than the width of the rib, and the groove depth is greater than or equal to the height of the rib.

[0083] During assembly, the rib is embedded into the groove by axially pressing the auxiliary punch 3. An external force is applied to the auxiliary punch 3, and the external force is transmitted to the shaft core 22 in sequence through the auxiliary punch 3 and the mounting and fixing part 21, and finally acts on the mounting handle of the wire thread sleeve 4 by the punch 2221.

[0084] like Figures 8 to 9 As shown, another embodiment is that the first snap-fit ​​portion 211 protrudes from the top of the mounting and fixing portion 21, located above the through hole 212. The second snap-fit ​​portion 31 includes a receiving cavity provided on the auxiliary punching member 3, and the receiving cavity is sleeved and snapped onto the first snap-fit ​​portion 211. The receiving cavity can be a circular or non-circular concave cavity, and the shape of the protruding first snap-fit ​​portion 211 matches the receiving cavity.

[0085] In this embodiment, the top of the mounting and fixing part 21 is set as the first snap-fit ​​part 211, so that the receiving cavity on the auxiliary punching part 3 can be fitted outside the first snap-fit ​​part 211, which facilitates assembly in a narrow space.

[0086] The inner diameter of the receiving cavity is slightly larger than the outer diameter of the top of the movable part 2 to facilitate assembly.

[0087] The second locking part 31 is located on one end of the auxiliary punching member 3 and is at a certain distance from the end face of the auxiliary punching member 3. In this embodiment, the second locking part 31 is avoided from being located at one end of the auxiliary punching member 3, thus ensuring accurate transmission of the punching force.

[0088] The auxiliary punching component 3 includes an auxiliary punching plate, a second snap-fit ​​part 31 is disposed on the side wall of the auxiliary punching plate, and a punching part 2221 is a punching groove disposed on the shaft core 22.

[0089] Example 4

[0090] Based on embodiments 1 and 3, the wire thread insert installation tool includes multiple inserts sequentially fitted together. The sleeve body has a recessed installation cavity that is axially connected to the first channel section. The fitted inserts are detachably disposed within the installation cavity.

[0091] Each insert has a through hole inside, and the number of inserts that can be installed can be selected to change the inner diameter of the second channel segment. The through hole of the innermost insert serves as the second channel segment.

[0092] Example 5

[0093] An improvement is made to the limiting structure of Embodiment 1. The first and second locking parts are rotatably locked. The first locking part is disposed on the peripheral wall of the top of the mounting and fixing part, and the second locking part is an annular cylinder protruding from the auxiliary punching member, the inner peripheral wall of which is rotatably locked with the first locking part.

[0094] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wire thread insert installation tool for operation in confined spaces, characterized in that, include: A positioning element having a through-hole inside, the positioning element being used to place a wire thread insert; The movable part can be inserted into the channel hole to install the wire thread sleeve or removed from the channel hole after installation; The auxiliary punching component has one end detachably connected to the removed movable part, and the other end is used to receive external force and transmit the force to the installation shank of the wire thread insert through the movable part for punching.

2. The wire thread insert installation tool according to claim 1, characterized in that, The connection between the top of the movable member and the auxiliary punching member has a limiting structure that restricts the movement of the auxiliary punching member relative to the movable member.

3. The wire thread insert installation tool according to claim 2, characterized in that, The movable part includes a shaft core and a mounting and fixing part. One end of the shaft core has a punched-out part, and the other end is connected to the mounting and fixing part. The mounting and fixing part protrudes radially from the channel hole. The limiting structure includes a first locking part and a second locking part that engage with each other. The first locking part is disposed on the top of the mounting and fixing part, and the second locking part is disposed on the auxiliary punching member.

4. The wire thread insert installation tool according to claim 3, characterized in that, The first snap-fit ​​portion is recessed on the top of the mounting and fixing portion, and the first snap-fit ​​portion includes a plurality of intersecting grooves; the second snap-fit ​​portion protrudes from the auxiliary punching member, and the second snap-fit ​​portion is limited and snapped into the groove.

5. The wire thread insert installation tool according to claim 3, characterized in that, The peripheral wall of the mounting and fixing part is provided with a plurality of through holes at intervals, and the through holes are used to install the connecting rod; The second snap-fit ​​portion includes a cavity provided on the auxiliary punching member, and the second snap-fit ​​portion is sleeved and snapped onto the outside of the first snap-fit ​​portion.

6. The wire thread insert installation tool according to any one of claims 3-5, characterized in that, The second snap-fit ​​portion is located on one end of the auxiliary punching member and is at a certain distance from the end face of the auxiliary punching member.

7. The wire thread insert installation tool according to any one of claims 3-5, characterized in that, The auxiliary punching component includes an auxiliary punching plate, and the second snap-fit ​​portion is disposed on the side wall of the auxiliary punching plate; the punching portion is a punching groove disposed on the shaft core.

8. The wire thread insert installation tool according to any one of claims 1-5, characterized in that, The positioning component includes a sleeve body and multiple inserts. The channel hole includes a first channel section disposed in the sleeve body and a second channel section disposed inside the inserts. The inner diameter of the second channel section is smaller than the inner diameter of the first channel section. The sleeve body has a recessed mounting cavity that is axially connected to the first channel segment; multiple inserts have different apertures and can be selectively installed in the mounting cavity.

9. The wire thread insert installation tool according to claim 8, characterized in that, The outer periphery of the insert is connected to the fine thread of the inner peripheral wall of the mounting cavity, and the second channel section inside the insert has ST thread; The movable component includes a first shaft section that passes through a first channel section and a second shaft section with a reduced outer diameter. The second shaft section can be inserted into the second channel section to drive the wire thread sleeve to rotate and unscrew in the second channel section.

10. The wire thread insert installation tool according to claim 8, characterized in that, The insert has an axial end face with a mounting groove for mounting and dismounting.