Pneumatic mounting tool

Abstract

The utility model discloses a pneumatic installation tool which comprises an air gun body connected with an air inlet pipe, and a pneumatically-driven piston is arranged in the air gun body. One end of the air gun connecting part is fixedly arranged on the air gun body, and the other end, extending out of the air gun body, of the air gun connecting part is provided with a threaded section; the adjusting nut is connected with the threaded section of the air gun connecting part in a matched manner; one end of the gun head part is connected with the adjusting nut, and the other end of the gun head part is used for clamping a to-be-mounted part; the ejector rod is arranged in the air gun connecting part, the adjusting nut and the gun head part in a penetrating mode, one end of the ejector rod is connected with the piston, the other end of the ejector rod is used for abutting against a to-be-installed part, and the to-be-installed part is beaten through the ejector rod to achieve installation of the to-be-installed part. According to the scheme, using is convenient and fast, compressed air is adopted as a power source, impact force caused by manual beating is avoided, stability and reliability of installation are ensured, and harm to the hands of operators is reduced.

Description

Technical Field

[0001] This utility model relates to the field of embedded component assembly technology, specifically to a pneumatic installation tool. Background Technology

[0002] In current vehicle manufacturing and assembly, the installation of embedded components such as expansion bolts into body holes typically relies on manual tools, using the impact force generated by manual tapping to complete the installation. This method is not only inefficient, but also poses a significant risk of injury to the operator's hands, especially when the installation force of the expansion bolt exceeds 200N. Utility Model Content

[0003] This utility model provides a pneumatic installation tool to solve the problems of low efficiency and injury to operators caused by existing installation tools for embedded parts such as expansion bolts.

[0004] According to the pneumatic installation tool provided in the embodiment of this utility model, the pneumatic installation tool includes:

[0005] An air gun body, wherein the air gun body is connected to an air inlet pipe and a pneumatically driven piston is installed inside the air gun body;

[0006] An air gun connection part, one end of which is fixedly mounted on the air gun body, and the other end of which extends outward from the air gun body is provided with a threaded section;

[0007] An adjusting nut, which is connected to the threaded section of the air gun connection;

[0008] The gun head has one end connected to the adjusting nut and the other end used to clamp the part to be installed.

[0009] A push rod is inserted through the air gun connection part, adjusting nut, and gun head. One end of the push rod is connected to the piston, and the other end is used to abut against the part to be installed. The part to be installed is installed by striking the part with the push rod.

[0010] In some embodiments, the pneumatic installation tool further includes a nozzle connector connected to the adjusting nut;

[0011] The gun head connecting part is fixedly sleeved on the outside of the adjusting nut and the gun head, and the gun head is slidably connected inside the adjusting nut.

[0012] In some embodiments, the portion where the gun head connector and the gun head intersect forms an annular space, and an elastic element is provided within the annular space.

[0013] In some embodiments, the gun head is provided with a protrusion in the annular space, and the elastic element is provided on the side of the protrusion close to the air gun body.

[0014] In some embodiments, a spring is provided at the end of the gun head away from the air gun body, one end of the spring is fixed to the gun head, and the other end of the spring is used to press against the part to be installed.

[0015] In some embodiments, the gun head has an opening at the end away from the air gun body, the opening communicating with the inner cavity of the gun head, a step being provided inside the opening, one end of the spring being fixed to the step inside the opening, and the other end extending into the inner cavity of the gun head.

[0016] In some embodiments, a portion of the part to be installed is inserted into the gun head, the spring includes a straight section and an arc-shaped section, the straight section is fixed to a step in the opening by screws, and the bottom of the arc-shaped section presses against the part to be installed.

[0017] In some embodiments, a guide sleeve is provided inside the air gun connection, the adjusting nut, or the gun head, and the guide sleeve is used to support the top rod.

[0018] In some embodiments, a pressure valve is provided on the air intake pipe; and / or,

[0019] The top rod is a stepped rod.

[0020] In some embodiments, a locking nut is further provided on the threaded section of the air gun connection; and / or,

[0021] The part to be installed is an expansion bolt.

[0022] Compared with the prior art, the embodiments of this utility model have the following advantages:

[0023] The pneumatic installation tool provided in this embodiment is easy to use. It uses compressed air as a power source, avoiding the impact of manual striking, ensuring the stability and reliability of installation, and reducing injury to the operator's hands.

[0024] Furthermore, the tightening stroke of the installation tool disclosed in this embodiment can be adjusted by turning the adjusting nut, which improves the flexibility and accuracy of installation.

[0025] Furthermore, in a specific embodiment, a gun head connection part with elastic elements such as springs is designed to form an elastic movable sleeve structure. The movable sleeve driven by the spring applies preload, and the preload applied to the part to be installed is further precisely controlled by controlling the stroke to ensure that it is evenly stressed.

[0026] Furthermore, in specific embodiments, the tightening speed and force can also be adjusted by the output of the pneumatic valve to adapt to different installation requirements. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the pneumatic installation tool provided in some embodiments of this utility model;

[0028] Figure 2 This is a cross-sectional schematic diagram along the central axis of a pneumatic installation tool provided in some embodiments of this utility model;

[0029] Figure 3 This is a top view of the air gun connection part provided in some embodiments of this utility model;

[0030] Figure 4 This is a front view structural schematic diagram of the air gun connection part provided in some embodiments of this utility model;

[0031] Figure 5 This is a schematic diagram of the main structure of the adjusting nut provided in some embodiments of this utility model;

[0032] Figure 6 This is a top view of the gun head connection portion provided in some embodiments of this utility model;

[0033] Figure 7 This is a front view structural schematic diagram of the gun head connection part provided in some embodiments of this utility model;

[0034] Figure 8 This is a schematic diagram of the main structure of the gun head provided in some embodiments of this utility model;

[0035] Figure 9 This is a top view of the gun head structure provided in some embodiments of this utility model;

[0036] Figure 10 This is a schematic diagram of the main structure of the reed provided in some embodiments of this utility model;

[0037] Figure 11 This is a top view schematic diagram of the reed structure provided in some embodiments of this utility model;

[0038] Figure 12 This is a schematic diagram of the top rod provided in some embodiments of this utility model.

[0039] Attached image annotations:

[0040] 1. Air gun body; 11. Trigger; 2. Air gun connecting part; 21. Threaded section; 22. Connecting end; 23. Threaded hole; 24. Hollow inner cavity; 3. Adjusting nut; 31. Threaded connecting section; 32. Gun head connecting section; 33. Internal thread; 34. Receiving cavity; 4. Gun head connecting part; 41. Fixing hole; 42. Cavity; 43. Grip part; 44. Inner extension part; 5. Gun head; 51. Chamber; 52. Protrusion; 53. Spring sleeve section; 54. Part insertion position; 6. Opening; 61. Step; 62. Positioning hole; 7. Locking nut; 8. Spring; 81. Straight section; 82. Arc section; 83. Fixing hole; 9. Push rod; 10. Air inlet pipe (air inlet end); 100. Expansion pin. Detailed Implementation

[0041] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0044] In the description of this utility model, the reference to terms such as "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model.

[0045] See Figure 1 and Figure 2 As shown, an embodiment of this utility model discloses a pneumatic installation tool, comprising:

[0046] The air gun body 1 is connected to an air inlet pipe 10, and a pneumatically driven piston is installed inside the air gun body. The piston is located within a chamber of the air gun body 1, and air vents are located on both sides of the chamber. The piston's reciprocating movement is controlled by controlling the air intake and exhaust through these air vents. The air gun body 1 can be a commercially available air gun, which will not be further described here.

[0047] Combination Figure 3 and Figure 4 As shown, the air gun connecting part 2 is located on the power output path of the piston and has a hollow structure, including a threaded section 21, a connecting end 22, a threaded hole 23, and a hollow inner cavity 24. The hollow inner cavity 24 can allow the push rod or push pin to pass through. The air gun connecting part 2 is fixedly mounted on the air gun body 1 through the connecting end 22. The other end of the air gun connecting part extending outward from the air gun body is provided with a threaded section 21. The thread of the threaded section 21 is provided on the outer circumference, so as to cooperate with the adjusting nut 3 to adjust the stroke length of the push rod.

[0048] The air gun connecting part 2 is also provided with at least one threaded hole 23 on the connecting end 22, so that it can be fixed on the air gun body 1 by the cooperation of screws or bolts and threaded holes 23.

[0049] according to Figure 5 The disclosed adjusting nut 3 includes a threaded connecting section 31, a gun head connecting section 32, an internal thread 33, and a receiving cavity 34. The threaded connecting section 31 on the adjusting nut 3 engages with the threaded section 21 of the air gun connecting part through the internal thread 33, thereby connecting the adjusting nut 3 to the air gun connecting part 2. The adjusting nut 3 is also provided with a gun head connecting section 32, which is provided with a receiving cavity 34 for connecting and receiving the gun head 5.

[0050] Combination Figure 8 and Figure 9 The disclosed gun head 5 includes a chamber 51, a protrusion 52, a spring sleeve section 53, and a part insertion position 54. One end of the gun head 5 is connected to the adjusting nut 3, which can be a fixed connection or a sliding connection within the receiving cavity 34. The other free end of the gun head 5 is used to clamp the part to be installed.

[0051] The parts to be installed are embedded parts, such as screws, bolts, pins or expansion bolts 100.

[0052] Combination Figure 2 and Figure 12 As shown, the push rod 9 passes through the air gun connection part 2, the adjusting nut 3, and the gun head 5. One end of the push rod 9 is connected to the piston, and the other end is used to abut against the part to be installed. The part to be installed is installed by striking the part to be installed through the push rod.

[0053] The pneumatic installation tool disclosed in the above embodiments uses compressed air as a power source, avoiding the impact of manual striking, ensuring the stability and reliability of installation, reducing injury to the operator's hands, and its tightening stroke can be adjusted by turning the adjusting nut, improving the flexibility and accuracy of installation.

[0054] according to Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the pneumatic installation tool also includes a gun head connecting part 4, which is connected to the adjusting nut 3. The gun head connecting part 4 is fixedly sleeved on the outside of the adjusting nut 3 and the gun head 5, and the gun head 5 can be slidably connected inside the adjusting nut 3.

[0055] Specifically, the gun head connecting part 4 includes a fixing hole 41, a cavity 42, a gripping part 43, and an inner extension part 44. The fixing hole 41 cooperates with a screw or pin to fix the gun head connecting part 4 and the adjusting nut 3 together. The cavity 42 allows the gun head 5 and the push rod 9 to pass through. The gripping part 43 is convenient for the operator to hold, so as to facilitate the operation of the installation tool. The inner extension part 44 is located at one end near the part to be installed and extends through the inner side of the gun head 5 to form an annular space to accommodate the elastic element (not shown in the figure).

[0056] Optionally, the portion where the gun head connecting part 4 and the gun head 5 intersect forms an annular space, and an elastic element is provided in the annular space. The elastic element can be a ring spring. By providing the elastic element, a pre-tightening force is applied when the expansion bolt 100 and other parts are installed and they abut against the body hole, and a buffer and protection are provided for the tightening process.

[0057] Combination Figure 2 As shown, the gun head 5 is provided with a protrusion 52 in the annular space. The protrusion can be an annular protrusion. The elastic element is provided on the side of the protrusion close to the air gun body, so that it can provide a buffer and pre-compression force to the parts in the initial state.

[0058] A spring 8 is provided at the end of the gun head 5 away from the air gun body 1. One end of the spring 8 is fixed to the gun head 5, and the other end of the spring 8 is used to press against the part to be installed.

[0059] In an optional embodiment, combined with Figure 8 and Figure 9As shown, the gun head 5 has an opening 6 at the end away from the air gun body. The opening 6 communicates with the inner cavity of the gun head. A step 61 is provided in the opening 6, and a positioning hole 62 is provided on the step. One end of the spring 8 is fixed to the step 61 in the opening 6 through the fixing hole 83 on the spring and the positioning hole 62. The other end extends into the inner cavity of the gun head to abut against the expansion pin and other parts to be installed.

[0060] Specifically, a portion of the part to be installed, such as the expansion bolt 100, is inserted into the gun head 5, and according to... Figure 10 and Figure 11 The spring shown includes a straight section 81 and an arc-shaped section 82. The straight section 81 is fixed to the step 61 in the opening by screws and the positioning hole 62, and the bottom of the arc-shaped section presses against the part to be installed.

[0061] In some optional embodiments, a guide sleeve (not shown in the figure) is provided inside the air gun connection part, the adjusting nut or the gun head. The guide sleeve may be a copper sleeve, which is used to support the push rod and ensure the straightness and rigidity of the push rod during reciprocating movement.

[0062] An air pressure valve (not shown in the figure) is provided on the air inlet pipe (air inlet end) 10; by adjusting the air pressure valve, the gas pressure in the air inlet pipe can be adjusted, thereby adjusting the tightening speed and force to adapt to different installation requirements.

[0063] Combination Figure 12 As shown, the top rod is a stepped rod, which further ensures the rigidity and straightness of the top rod.

[0064] In some embodiments, a locking nut 7 is also provided on the threaded section 21 of the air gun connection part 2. The locking nut 7 is located on the side of the adjusting nut 2 near the air gun connection part 2. After the adjusting nut 2 is adjusted, the locking nut 7 is used to lock it.

[0065] In summary, the working steps of this utility model embodiment include: 1. placing the expansion pin above the body hole; 2. applying pre-pressure through the gun head driven by an elastic element such as a spring to press the expansion pin into place; 3. pulling the trigger to fire the push rod, tightening the expansion pin and installing it into the body hole; 4. if the tightening stroke needs to be adjusted, the adjusting nut can be rotated to adjust the stroke by ±3mm; 5. adjusting the tightening speed and force through the air pressure valve to adapt to different installation requirements.

[0066] Compared with existing manual installation tools, this utility model has the following advantages:

[0067] 1. Using compressed air as a power source avoids the impact of manual striking, reduces injury to the operator's hands, and ensures the stability and reliability of the installation of expansion bolts and similar parts.

[0068] 2. A movable sleeve driven by elastic elements such as springs was designed. By controlling the stroke, the force applied to the expansion pin can be precisely controlled, ensuring that the expansion pin and similar parts are subjected to uniform force.

[0069] 3. The tightening stroke can be adjusted by ±3mm via the threaded connection of the adjusting nut, improving the flexibility and accuracy of installation.

[0070] 4. The tightening speed and force can be adjusted by the output of the air pressure valve to adapt to different installation requirements.

[0071] It should be noted that although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims of the present invention.

Claims

1. A pneumatic installation tool, characterized in that, The pneumatic installation tool comprises: a pneumatic gun body connected with an air inlet pipe, wherein a piston driven by air pressure is arranged in the pneumatic gun body; a pneumatic gun connecting part fixedly arranged at one end of the pneumatic gun body, and having a threaded segment at the other end extending out of the pneumatic gun body; an adjusting nut matched with the threaded segment of the pneumatic gun connecting part; a gun head part connected at one end with the adjusting nut and used for clamping a part to be installed at the other end; a top rod arranged in the pneumatic gun connecting part, the adjusting nut and the gun head part, and connected at one end with the piston and used at the other end for abutting against the part to be installed, so that the part to be installed is installed by the top rod hitting the part to be installed.

2. The pneumatic installation tool of claim 1, wherein, The pneumatic installation tool further comprises a gun head connecting part connected with the adjusting nut; wherein the gun head connecting part is fixedly sleeved outside the adjusting nut and the gun head part, and the gun head part is slidingly connected in the adjusting nut.

3. The pneumatic installation tool of claim 2, wherein, An annular space is formed at the intersection of the gun head connecting part and the gun head part, and an elastic member is arranged in the annular space.

4. The pneumatic installation tool of claim 3, wherein, The gun head part is provided at the annular space with a protrusion, and the elastic member is arranged at one side of the protrusion close to the pneumatic gun body.

5. The pneumatic installation tool of claim 1, wherein, One end of the gun head part away from the pneumatic gun body is provided with a reed, and one end of the reed is fixed on the gun head part, and the other end of the reed is used for abutting against the part to be installed.

6. The pneumatic installation tool of claim 5, wherein, The gun head part is provided at one end away from the pneumatic gun body with an opening, and the opening is communicated with the inner cavity of the gun head part, and a step is arranged in the opening, and one end of the reed is fixed on the step in the opening, and the other end of the reed is arranged in the inner cavity of the gun head part.

7. The pneumatic installation tool of claim 6, wherein, A part of the part to be installed is inserted into the gun head part, the reed comprises a flat segment and an arc segment, the flat segment is fixed on the step in the opening by a screw, and the bottom of the arc segment abuts against the part to be installed.

8. The pneumatic installation tool according to any one of claims 1 to 7, characterized in that A guide sleeve is arranged in the pneumatic gun connecting part, the adjusting nut or the gun head part, and used for supporting the top rod.

9. The pneumatic installation tool according to any one of claims 1 to 7, characterized in that An air pressure valve is arranged on the air inlet pipe; and / or The top rod is a stepped rod.

10. The pneumatic installation tool according to any one of claims 1-7, characterized in that, A locking nut is further arranged on the threaded segment of the pneumatic gun connecting part; and / or The part to be installed is an expansion bolt.

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