Driving axle threaded hole gluing device

By introducing a heating mechanism and an adjustment mechanism into the adhesive application device for the threaded holes of the drive axle, the problems of uneven anaerobic adhesive application and slow curing were solved, achieving uniform adhesive application and rapid curing, thus improving the tightness of bolt connections and production efficiency.

CN224057869UActive Publication Date: 2026-03-31LAIYANG QIAOAN MASCH FITTINGS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing adhesive application devices for drive axle threaded holes suffer from uneven adhesive application after applying anaerobic adhesive, affecting the tightness of the connection between the bolt and the threaded hole. Furthermore, the curing of anaerobic adhesive requires specific temperature conditions, resulting in low construction efficiency.

Method used

The heating mechanism uses electric heating wires and blowers to blow hot air to increase the temperature of the threaded holes, thereby accelerating the curing of the anaerobic adhesive. At the same time, the mechanism is adjusted to ensure uniform adhesive application. The components, including support columns, fixing frames, motors, screws, internal threaded tubes, and hydraulic rods, work together.

Benefits of technology

It improves the uniformity of anaerobic adhesive application and curing speed, enhances the tightness of the connection between bolts and threaded holes, adapts to the adhesive application requirements of different types of drive axles, and improves production efficiency.

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Abstract

The utility model provides a drive axle threaded hole gluing device and relates to the field of drive axle threaded hole gluing. The drive axle threaded hole gluing device comprises a placing table, an adjusting mechanism and a gluing mechanism, one side of the gluing mechanism is connected with a heating mechanism used for increasing the temperature of a workpiece, the heating mechanism comprises a heat insulation box and an air outlet, the heat insulation box is connected with the lower portion of one side of the gluing mechanism, and the air outlet is formed in one side of the heat insulation box. The bottom of the adjusting mechanism is connected with the right side of the top of the placing table, and the top of the gluing mechanism is connected with the bottom of the adjusting mechanism. According to the drive axle threaded hole gluing device, the heating mechanism is arranged, an electric heating wire heats air in a heat insulation box, a draught fan drives the heated air to be blown to a threaded hole from an air outlet, the temperature of the position where anaerobic glue is smeared is increased, and meanwhile the curing speed of the anaerobic glue is increased; the possibility that the anaerobic adhesive gathers at the bottom of the inner wall of the threaded hole when the drive axle moves is reduced, and the tightness of connection between the bolt and the threaded hole is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of adhesive coating technology for drive axle threaded holes, and in particular to an adhesive coating device for drive axle threaded holes. Background Technology

[0002] The drive axle is a mechanism located at the end of the transmission system that changes the speed and torque from the transmission and transmits them to the drive wheels. A drive axle typically consists of a final drive, differential, wheel drivetrain, and drive axle housing; steering drive axles also include constant velocity joints. Furthermore, the drive axle must withstand vertical, longitudinal, and lateral forces acting between the road surface and the vehicle frame or body, as well as braking torque and reaction forces. Brakes are bolted to both sides of the drive axle housing; before tightening the bolts, anaerobic adhesive must be applied to prevent the bolts from loosening.

[0003] Patent CN222490748U discloses a glue-applying device for threaded holes in a drive axle. This device uses a frame and a position-changing mechanism to synchronously change the position of two applicator heads, enabling simultaneous glue application to the threaded holes on both sides of the drive axle housing. This significantly improves the glue-applying efficiency, eliminates the need for manual operation, and avoids the defects of uneven application and missed application in existing technologies, achieving consistent automated production cycles and stable output. However, the method of removing the drive axle after applying the anaerobic adhesive results in the adhesive accumulating at the bottom of the threaded hole's inner wall under gravity, affecting the uniformity of the adhesive and reducing the tightness of the bolt-threaded hole connection. Furthermore, anaerobic adhesive application requires a temperature above 20°C, and the curing process also requires a certain temperature to accelerate. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a glue-applying device for threaded holes in drive bridges, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a glue-applying device for a drive bridge threaded hole, comprising a placement platform, an adjustment mechanism for moving to a target position, and a glue-applying mechanism for applying anaerobic glue. A heating mechanism for increasing the workpiece temperature is connected to one side of the glue-applying mechanism. The heating mechanism includes a heat insulation box and an air outlet. The heat insulation box is connected to the lower side of one side of the glue-applying mechanism, and the air outlet is located on one side of the heat insulation box. The bottom of the adjustment mechanism is connected to the top right side of the placement platform, and the top of the glue-applying mechanism is connected to the bottom of the adjustment mechanism.

[0006] By adopting the above technical solution, the heat insulation box can be used to prevent internal heat from dissipating, and the heated air can be blown towards the threaded hole of the drive axle through the air outlet to increase the temperature and thus accelerate the curing of the anaerobic adhesive, and maintain the uniformity of the applied anaerobic adhesive.

[0007] Preferably, the heating mechanism further includes a heating wire and a fan, wherein the heating wire is connected to the inner wall of the heat insulation box, and the fan is connected to the inner wall of the air outlet.

[0008] By adopting the above technical solution, the heat conducted by the heating wire can be used to heat the air inside the insulation box, and the fan can be used to carry the heat to the anaerobic adhesive through airflow to increase the temperature and create suitable construction conditions.

[0009] Preferably, the adjustment mechanism includes a support column and a fixing frame, the bottom of the support column is connected to the top right side of the placement platform, and the bottom of the fixing frame is connected to the top of the support column.

[0010] By adopting the above technical solution, the support column can be used to provide upward support for the adjustment mechanism, and the fixed frame can be used to facilitate the operation of the adjustment mechanism.

[0011] Preferably, the adjustment mechanism further includes a motor and a screw, the motor is connected to the right side of the fixed frame, the screw is connected to the output shaft of the motor, and one end of the screw is rotatably connected to the left side of the fixed frame.

[0012] By adopting the above technical solution, the rotation of the motor output shaft can drive the screw to rotate, providing power support for the operation of the adjustment mechanism.

[0013] Preferably, the adjustment mechanism further includes an internally threaded tube and a sliding groove. The inner wall of the internally threaded tube is threadedly connected to the surface of the screw. A limiting plate is connected to one side of the internally threaded tube. The sliding groove is opened on the front and rear sides of the inner wall of the fixed frame. The sliding groove is slidably connected to one side of the limiting plate.

[0014] By adopting the above technical solution, the screw rotation can drive the internally threaded tube connected to the limiting plate in the slide to move left and right, thereby adjusting the position of the glue application mechanism.

[0015] Preferably, the adhesive application mechanism includes a connecting frame and an electric push rod, with the top of the connecting frame connected to the bottom side of the limiting plate, the top of the electric push rod connected to the bottom of the connecting frame, and a fixing plate connected to the bottom of the electric push rod.

[0016] By adopting the above technical solution, the height of the glue application mechanism can be adjusted using the electric push rod at the bottom of the connecting frame, which is convenient to adapt to the position of the threaded holes of different types of drive axles.

[0017] Preferably, the adhesive application mechanism further includes a connecting block and a bidirectional hydraulic rod. The top of the connecting block is connected to the bottom of the fixing plate, the center of the surface of the bidirectional hydraulic rod is connected to the connecting block, the two ends of the bidirectional hydraulic rod are connected to connecting plates, and the lower side of one side of the connecting plate is connected to the heat insulation box.

[0018] By adopting the above technical solution, the bidirectional hydraulic rod connected by the connecting block can be used to extend and retract, thereby moving the connecting plate in opposite directions or away from each other, which facilitates the application of anaerobic adhesive.

[0019] Preferably, the glue application mechanism further includes a delivery pipe and a glue application head. The surface of the delivery pipe is connected to the lower side of the other side of the connecting plate. The glue application head is disposed inside the heat insulation box. One end of the glue application head is connected to one side of the connecting plate, and the glue application head is connected to one end of the delivery pipe.

[0020] By adopting the above technical solution, the anaerobic adhesive delivered to the surface of the coating head can be evenly applied to the inner wall of the threaded hole by the movement of the connecting plate in opposite directions or back directions, thus ensuring the uniformity of the anaerobic adhesive application.

[0021] This invention provides a glue-applying device for threaded holes in a drive axle. It has the following beneficial effects:

[0022] This drive axle threaded hole adhesive application device uses a heating mechanism. The heating wire heats the air inside the insulation box, and the fan blows the heated gas from the air outlet to the threaded hole, increasing the temperature of the anaerobic adhesive application area and accelerating the curing speed of the anaerobic adhesive. This reduces the possibility of the anaerobic adhesive accumulating at the bottom of the inner wall of the threaded hole when the drive axle moves, ensuring the tightness of the connection between the bolt and the threaded hole. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the external structure of the present invention from a right-side top view;

[0025] Figure 2 for Figure 1 Enlarged schematic diagram of section A in the middle;

[0026] Figure 3 This is a schematic diagram of the left-side top view of the structure of this utility model;

[0027] Figure 4 for Figure 3 Enlarged schematic diagram of section B;

[0028] Figure 5 This is a schematic diagram of the adhesive application mechanism from the left-hand top view of this utility model;

[0029] Figure 6 This is a schematic cross-sectional view of the right-side, upward-looking portion of the structure of this utility model;

[0030] Figure 7 for Figure 6 Enlarged schematic diagram of section C.

[0031] In the diagram: 1. Placement platform; 2. Adjustment mechanism; 201. Support column; 202. Fixing frame; 203. Motor; 204. Screw; 205. Internally threaded pipe; 206. Limiting plate; 207. Slide groove; 3. Glue application mechanism; 301. Connecting frame; 302. Electric push rod; 303. Fixing plate; 304. Connecting block; 305. Two-way hydraulic rod; 306. Connecting plate; 307. Conveying pipe; 308. Glue application head; 4. Heating mechanism; 401. Heat insulation box; 402. Heating wire; 403. Air outlet; 404. Fan. Detailed Implementation

[0032] It should be noted that in the description of the embodiments of this utility model, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] Reference Figure 6 and Figure 7This utility model provides a device for applying adhesive to the threaded hole of a drive bridge, including a placement platform 1, an adjustment mechanism 2 for moving to a target position, and an adhesive application mechanism 3 for applying anaerobic adhesive. A heating mechanism 4 for increasing the temperature of the workpiece is connected to one side of the adhesive application mechanism 3. The heating mechanism 4 includes a heat insulation box 401 and an air outlet 403. The heat insulation box 401 is connected to the lower side of one side of the adhesive application mechanism 3, and the air outlet 403 is located on one side of the heat insulation box 401. An electric heating wire 402 is connected to the inner wall of the heat insulation box 401, and a fan 404 is connected to the inner wall of the air outlet 403. The bottom of the adjustment mechanism 2 is connected to the top right side of the placement platform 1, and the top of the adhesive application mechanism 3 is connected to the bottom of the adjustment mechanism 2. The electric heating wire 402 heats the air inside the heat insulation box 401, and the fan 404 drives the heated gas to be blown from the air outlet 403 to the threaded hole.

[0035] Reference Figure 1 , Figure 2 and Figure 3 In one aspect of this embodiment, the adjustment mechanism 2 includes a support column 201 and a fixing frame 202. The bottom of the support column 201 is connected to the top right side of the placement platform 1, and the bottom of the fixing frame 202 is connected to the top of the support column 201. A motor 203 is connected to the right side of the fixing frame 202. A screw 204 is connected to the output shaft of the motor 203. One end of the screw 204 is rotatably connected to the left side of the fixing frame 202. An internally threaded tube 205 is threaded onto the surface of the screw 204. A limiting plate 206 is connected to one side of the internally threaded tube 205. Slide grooves 207 are provided on the front and rear sides of the inner wall of the fixing frame 202. The slide grooves 207 are slidably connected to one side of the limiting plate 206. The output shaft of the motor 203 connected to the right side of the fixing frame 202 at the top of the support column 201 rotates, causing the screw 204 to rotate. The rotation of the screw 204 causes the internally threaded tube 205 to move left and right. The left and right movement of the internally threaded tube 205 causes the limiting plate 206 to move within the slide groove 207.

[0036] Reference Figure 3 , Figure 4 and Figure 5In one aspect of this embodiment, the adhesive application mechanism 3 includes a connecting frame 301 and an electric push rod 302. The top of the connecting frame 301 is connected to one side of the bottom of the limiting plate 206. The top of the electric push rod 302 is connected to the bottom of the connecting frame 301. A fixing plate 303 is connected to the bottom of the electric push rod 302. A connecting block 304 is connected to the bottom of the fixing plate 303. A bidirectional hydraulic rod 305 is connected to the connecting block 304. Connecting plates 306 are connected to both ends of the bidirectional hydraulic rod 305. The lower side of one side of the connecting plate 306 is connected to the heat insulation box 401, and the lower side of the other side of the connecting plate 306 is connected to the heat insulation box 401. A delivery pipe 307 is connected to the heat insulation box 401, and an adhesive applicator 308 is provided inside the heat insulation box 401. One end of the adhesive applicator 308 is connected to one side of the connecting plate 306, and the adhesive applicator 308 is connected to one end of the delivery pipe 307. The electric push rod 302 at the bottom of the connecting frame 301 extends and retracts, causing the adhesive applicator 308 to move to the same horizontal line as the threaded hole. Then, the delivery pipe 307 delivers anaerobic adhesive to the adhesive applicator 308. The bidirectional hydraulic rod 305 connected to the connecting block 304 at the bottom of the fixing plate 303 moves and causes the adhesive applicator 308 on one side of the connecting plate 306 to move in the threaded hole for application.

[0037] All electrical devices in this plan are powered by an external power source.

[0038] Working principle: During use, the electric push rod 302 at the bottom of the connecting frame 301 extends and retracts, causing the glue applicator 308 on one side of the connecting plate 306 to move to the same horizontal line as the threaded hole. Then, the output shaft of the motor 203 connected to the right side of the fixing frame 202 at the top of the support column 201 rotates, causing the screw 204 to rotate. The rotation of the screw 204 causes the internal threaded tube 205 to move left and right. The left and right movement of the internal threaded tube 205 causes the limiting plate 206 to move in the slide groove 207. The movement of the internal threaded tube 205 causes the glue applicator 308 to move to one side of the threaded hole. The heating wire 402 heats the air in the heat insulation box 401. The fan 404 drives the heated gas to blow from the air outlet 403 to the threaded hole, increasing the temperature inside the threaded hole. The delivery pipe 307 delivers anaerobic glue to the glue applicator 308. The bidirectional hydraulic rod 305 connected to the connecting block 304 at the bottom of the fixing plate 303 moves, causing the glue applicator 308 on one side of the connecting plate 306 to move in the threaded hole for application.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of driving axle thread hole glue coating device, including placement platform (1), adjusting mechanism (2) for moving to target position and glue coating mechanism (3) for smearing anaerobic glue, it is characterized by: The gluing mechanism (3) is connected with a heating mechanism (4) for improving the temperature of the workpiece on one side, the heating mechanism (4) comprises a heat insulation box (401) and an air outlet (403), the heat insulation box (401) is connected below the one side of the gluing mechanism (3), the air outlet (403) is arranged on the one side of the heat insulation box (401), the adjusting mechanism (2) is connected with the right side of the top of the placing table (1), and the gluing mechanism (3) is connected with the bottom of the adjusting mechanism (2).

2. The driving axle threaded hole gluing device according to claim 1, characterized in that: The heating mechanism (4) further comprises an electric heating wire (402) and a fan (404), the electric heating wire (402) is connected with the inner wall of the heat insulation box (401), and the fan (404) is connected with the inner wall of the air outlet (403).

3. The driving axle threaded hole gluing device according to claim 1, characterized in that: The adjusting mechanism (2) comprises a supporting column (201) and a fixing frame (202), the bottom of the supporting column (201) is connected with the right side of the top of the placing table (1), and the bottom of the fixing frame (202) is connected with the top of the supporting column (201).

4. The driving axle threaded hole gluing device according to claim 3, characterized in that: The adjusting mechanism (2) further comprises a motor (203) and a screw rod (204), the motor (203) is connected with the right side of the fixing frame (202), the screw rod (204) is connected with the output shaft of the motor (203), and one end of the screw rod (204) is rotatably connected with the left side of the fixing frame (202).

5. The driving axle threaded hole gluing device according to claim 4, characterized in that: The adjusting mechanism (2) further comprises an internally-threaded pipe (205) and a sliding groove (207), the inner wall of the internally-threaded pipe (205) is threadedly connected with the surface of the screw rod (204), one side of the internally-threaded pipe (205) is connected with a limiting plate (206), and the sliding groove (207) is arranged on the inner wall of the fixing frame (202) and is arranged on the front and back sides.

6. The driving axle threaded hole gluing device according to claim 5, characterized in that: The gluing mechanism (3) comprises a connecting frame (301) and an electric push rod (302), the top of the connecting frame (301) is connected with one side of the bottom of the limiting plate (206), the top of the electric push rod (302) is connected with the bottom of the connecting frame (301), and the bottom of the electric push rod (302) is connected with a fixed plate (303).

7. The driving axle threaded hole gluing device according to claim 2, characterized in that: The gluing mechanism (3) further comprises a connecting block (304) and a bidirectional hydraulic rod (305), the top of the connecting block (304) is connected with the bottom of the fixed plate (303), the surface center of the bidirectional hydraulic rod (305) is connected with the connecting block (304), both ends of the bidirectional hydraulic rod (305) are connected with a connecting plate (306), and one side of the connecting plate (306) is connected with the heat insulation box (401) below.

8. The driving axle threaded hole gluing device according to claim 7, characterized in that: The gluing mechanism (3) further comprises a conveying pipe (307) and a gluing head (308), the surface of the conveying pipe (307) is connected with the other side of the bottom of the connecting plate (306), the gluing head (308) is arranged on the inner side of the heat insulation box (401), one end of the gluing head (308) is connected with one side of the connecting plate (306), and the gluing head (308) is connected with one end of the conveying pipe (307).

Citation Information

Patent Citations

  • Driving axle threaded hole gluing device

    CN222490748U