A novel tooling mechanism for automotive oil cooling pipes

Abstract

This utility model discloses a novel tooling mechanism for automotive oil cooling pipes, including an oil pipe and an oil guide seat. Both ends of the oil pipe have flat surfaces with two sets of threaded holes. The upper end of each threaded hole has a tapered guide groove. The lower end of the oil guide seat has a stud and includes a tapered guide portion. Both ends of the oil pipe are connecting ends, each including an outer pipe and an inner pipe. A flow-blocking and heat-dissipating mesh is provided between the outer and inner pipes. A sealing sleeve is fitted onto the connecting end, comprising a sliding sleeve, an elastic collet, a locking nut, and an elastic sealing ring. In this utility model, the oil pipe and the inlet pipe are initially sealed and fixed by welding, and a secondary sealing and fixing is achieved by the sealing sleeve, forming a redundant sealing structure. The oil guide seat is first screwed in for positioning before welding, ensuring perpendicularity and eliminating the need for correction. The flow-blocking and heat-dissipating mesh interlayer added to the port prevents solder from entering the oil pipe.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology for engine oil cooling pipes, specifically a novel tooling mechanism for automotive engine oil cooling pipes. Background Technology

[0002] Oil cooling pipes are key components in the lubrication system of automobile engines used to reduce the temperature of engine oil. Their main function is to maintain the engine oil within a reasonable operating temperature range by dissipating heat, thereby ensuring the lubrication, cleaning, and sealing performance of the engine oil and extending engine life.

[0003] Utility model patent application number 201920860825.9 discloses a new tooling structure for an automotive oil cooling pipe, such as... Figure 1 As shown, the tooling structure ensures perpendicularity during welding through the design of polygonal oil pipes and threaded holes, eliminating the need for correction. However, when connecting the oil pipe to the inlet pipe, the two ends of the oil pipe are often enlarged to achieve contact welding with the inlet pipe. This process can result in solder flowing into the oil pipe. The pipelines rely solely on welding for sealing, lacking redundant sealing structures. Under long-term thermal stress and vibration, the weld is prone to mechanical fatigue and sealing failure, leading to leakage once the weld fails. Utility Model Content

[0004] The purpose of this utility model is to provide a novel tooling mechanism for automotive oil cooling pipes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel tooling mechanism for automotive oil cooling pipes, comprising an oil pipe and an oil guide seat. Both the upper and lower ends of the oil pipe are provided with flat surfaces, and two sets of screw holes are formed on the flat surfaces. A tapered guide groove is formed at the upper end of each screw hole. A stud is provided at the lower end of the oil guide seat, which includes a tapered guide portion. Both ends of the oil pipe are connecting ends, each connecting end comprising an outer pipe and an inner pipe. A flow-blocking and heat-dissipating mesh is provided between the outer pipe and the inner pipe. A sealing sleeve is fitted onto the connecting end, the sealing sleeve comprising a sliding sleeve, an elastic collet, a locking screw sleeve, and an elastic sealing ring.

[0006] The stud of the oil guide seat is screwed into the threaded hole of the oil pipe, and the oil guide seat is screwed into position and then welded to the oil pipe for fixation.

[0007] The sliding sleeve is slidably fitted onto the connecting end, and an elastic collet is fixedly provided at one end of the sliding sleeve. An elastic sealing ring is fixedly provided on the inner side of the elastic collet.

[0008] The outer side of the sliding sleeve is provided with an external thread, a locking nut is fitted on the threaded side of the sliding sleeve, and a sealing liner is fixedly provided on the inner side of the sliding sleeve.

[0009] The locking nut includes a conical surface, and the elastic collet includes an inclined surface, with the conical surface and the inclined surface in close contact.

[0010] The outer surface of the locking nut is provided with multiple sets of anti-slip ridges.

[0011] A first marking line is provided at the screw hole.

[0012] The tapered guide portion of the oil guide seat is provided with a second marking line.

[0013] The flow-blocking heat dissipation mesh is a medium gasket formed by stamping, and the flow-blocking heat dissipation mesh is extruded and installed inside the connection end.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the oil pipe and the oil inlet pipe are initially sealed and fixed by welding, and a secondary sealing and fixing is achieved by a sealing sleeve. The sealing sleeve forms a redundant sealing structure. When the weld is subjected to long-term thermal stress and vibration, and the seal fails due to mechanical fatigue, the sealing sleeve can achieve a seal to prevent oil leakage.

[0016] 2. The oil guide seat of this utility model is screwed into the threaded hole of the oil pipe, and the tapered guide groove forms a guide section to guide the stud. By observing the position of the first mark line and the second mark line, it can be determined whether the oil guide seat is installed in place. After installation, the oil guide seat is welded and fixed together with the oil pipe. Compared with the traditional process structure, it is easier to fix the tooling and ensures the perpendicularity without the need for correction.

[0017] 3. This utility model adds a flow-blocking and heat dissipation mesh interlayer at the oil pipe connection end. When the oil pipe is welded to the oil inlet pipe, it can prevent solder from entering the interior of the oil pipe, and the generated solder is blocked in the interlayer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the existing automotive oil cooling pipe tooling structure in the background art.

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the oil pipe of this utility model;

[0021] Figure 4 This is a partial cross-sectional view of the present invention;

[0022] Figure 5 This is a schematic diagram of the sealing sleeve of this utility model;

[0023] Figure 6This is a schematic diagram of the structure of the sliding sleeve of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the oil guide seat of this utility model;

[0025] Figure 8 This is a schematic diagram of the screw hole structure of this utility model.

[0026] In the diagram: 1. Oil pipe; 2. Oil guide seat; 3. Sealing sleeve; 11. Flat surface; 12. Connecting end; 13. Threaded hole; 14. First marking line; 121. Outer pipe; 122. Inner pipe; 123. Flow-blocking heat dissipation mesh; 131. Conical guide groove; 21. Stud; 22. Conical guide part; 23. Second marking line; 31. Sliding sleeve; 32. Elastic collet; 33. Locking sleeving; 34. Elastic sealing ring; 311. External thread; 312. Sealing liner; 321. Inclined surface; 331. Conical surface; 332. Anti-slip convex strip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 2-8 This utility model provides a technical solution: a novel tooling mechanism for an automotive oil cooling pipe, comprising an oil pipe 1 and an oil guide seat 2. Both the upper and lower ends of the oil pipe 1 are provided with a plane 11, and two sets of screw holes 13 are provided on the plane 11. The upper end of the screw hole 13 is provided with a conical guide groove 131. The lower end of the oil guide seat 2 is provided with a stud 21. The oil guide seat 2 includes a conical guide part 22. Both ends of the oil pipe 1 are connection ends 12. The connection end 12 includes an outer pipe 121 and an inner pipe 122. A flow-blocking heat dissipation mesh 123 is provided between the outer pipe 121 and the inner pipe 122. A sealing sleeve 3 is fitted on the connection end 12. The sealing sleeve 3 includes a sliding sleeve 31, an elastic collet 32, a locking screw sleeve 33, and an elastic sealing ring 34.

[0029] A flow-blocking heat dissipation mesh 123 interlayer is added to the connection end 12 of the oil pipe 1. When the oil pipe 1 is welded to the oil inlet pipe, the solder can be prevented from entering the interior of the oil pipe 1, and the generated solder is blocked in the interlayer.

[0030] Among them, the stud 21 of the oil guide seat 2 is screwed into the screw hole 13 of the oil pipe 1, and the oil guide seat 2 is screwed and positioned before being welded and fixed to the oil pipe 1.

[0031] The two sets of planes 11 are symmetrical and parallel about the axis of the oil pipe 1. When installing the oil guide seat 2, the stud 21 of the oil guide seat 2 is first screwed into the threaded hole 13 of the oil pipe 1 to achieve preliminary thread fixation. The tapered guide groove 131 of the threaded hole 13 is adapted to the tapered guide part 22 of the oil guide seat 2. When the thread is screwed in, the tapered guide groove 131 forms a guide section to guide the stud 21 and guide the stud 21 to automatically center. When there is a deviation in the verticality of the installation of the oil guide seat 2, mechanical interference is formed between the tapered guide part 22 and the tapered guide groove 131, which makes it impossible to complete the screwing action normally, thus achieving self-checking. When the verticality of the installation of the oil guide seat 2 is normal, the stud 21 can be screwed in normally, and after the installation of the oil guide seat 2, the tapered guide part 22 and the tapered guide groove 131 are tightly attached. Finally, the oil guide seat 2 is welded and fixed together with the oil pipe 1. Compared with the traditional process structure, it is easier to fix the tooling and ensures the verticality without correction.

[0032] Among them, the sliding sleeve 31 is slidably sleeved on the connecting end 12, and an elastic collet 32 ​​is fixedly provided at one end of the sliding sleeve 31. An elastic sealing ring 34 is fixedly provided on the inner side of the elastic collet 32. The elastic collet 32 ​​will undergo elastic deformation under the action of external force, and the elastic sealing ring 34 will undergo elastic deformation under the action of external force.

[0033] The outer side of the sliding sleeve 31 is provided with an external thread 311, and a locking nut 33 is threaded on the sliding sleeve 31. When the locking nut 33 is manually rotated, it can be driven to rotate and move linearly along the axis of the sliding sleeve 31. A sealing liner 312 is fixedly provided on the inner side of the sliding sleeve 31. The sealing liner 312 has a certain elasticity, and the sliding sleeve 31 can slide relative to the oil pipe 1. The connection between the sliding sleeve 31 and the oil pipe 1 is kept sealed by the sealing liner 312.

[0034] The locking nut 33 includes a conical surface 331, and the elastic collet 32 ​​includes an inclined surface 321. The conical surface 331 and the inclined surface 321 are in close contact. When the locking nut 33 moves, its conical surface 331 will squeeze the inclined surface 321 of the elastic collet 32, apply external force to the elastic collet 32, and cause the elastic collet 32 ​​to undergo elastic deformation.

[0035] like Figure 4 and Figure 5 As shown, after the oil pipe 1 is welded and fixed to the oil inlet pipe through the two expanded ends, a certain external force is applied to manually slide the sealing sleeve 3, the port diameter is expanded, the sealing sleeve 3 is limited, and the sealing sleeve 3 is slid to the weld seam. Keep the sliding sleeve 31 fixed, manually rotate the outermost locking screw 33, drive the locking screw 33 to move, the conical surface 331 of the locking screw 33 presses the inclined surface 321 of the elastic collet 32, apply external force to the elastic collet 32, the elastic collet 32 ​​closes inward, and the elastic sealing ring 34 undergoes corresponding elastic deformation until the elastic sealing ring 34 is tightly attached to the outside of the oil inlet pipe.

[0036] The oil pipe 1 and the oil inlet pipe are initially sealed and fixed by welding, and a secondary sealing and fixing is achieved by the sealing sleeve 3. The sealing sleeve 3 forms a redundant sealing structure. When the weld is subjected to thermal stress and vibration for a long time and the seal fails due to mechanical fatigue, the sealing sleeve 3 can achieve sealing to prevent oil leakage and facilitate timely inspection and maintenance. At the same time, the sealing sleeve 3 is placed on the outside of the weld to protect it.

[0037] The locking nut 33 has multiple sets of anti-slip ridges 332 on its outer surface. These ridges increase the contact friction with the hand, making it easier to rotate the locking nut 33.

[0038] A first marking line 14 is provided at screw hole 13.

[0039] The tapered guide portion 22 of the oil guide seat 2 is provided with a second marking line 23.

[0040] When the oil guide seat 2 is screwed into place, the first mark line 14 and the second mark line 23 are aligned. Conversely, when the oil guide seat 2 is not installed in place, the first mark line 14 and the second mark line 23 are not aligned. By observing the positions of the first mark line 14 and the second mark line 23, it can be determined whether the oil guide seat 2 is installed in place.

[0041] Among them, the flow-blocking heat dissipation mesh 123 is a medium gasket formed by stamping. The flow-blocking heat dissipation mesh 123 is extruded and set inside the connection end 12, which can prevent the solder generated when the oil pipe 1 is welded to the oil inlet pipe from entering the interior of the oil pipe 1.

[0042] Working principle: When installing the oil guide seat 2, the stud 21 of the oil guide seat 2 is screwed into the threaded hole 13 of the oil pipe 1. When there is a deviation in the verticality of the installation of the oil guide seat 2, mechanical interference is formed between the tapered guide part 22 and the tapered guide groove 131, which prevents the screwing action from being completed normally, thus achieving self-checking. When the verticality of the installation of the oil guide seat 2 is normal, the stud 21 can be screwed in normally. By observing the position of the first mark line 14 and the second mark line 23, it is determined whether the oil guide seat 2 is installed in place. After installation, the oil guide seat 2 is welded and fixed together with the oil pipe 1. The oil pipe 1 is welded to the oil inlet pipe through the expanded two ends. A flow-blocking heat dissipation mesh 123 interlayer is added to the connection end 12. The generated solder is blocked in the interlayer to prevent the solder from entering the oil pipe 1. After welding and fixing, After completion, manually slide the sealing sleeve 3 to the weld. The connection between the sliding sleeve 31 and the oil pipe 1 is kept sealed by the sealing liner 312. Keep the sliding sleeve 31 fixed. Manually rotate the outermost locking sleeve 33 to drive the locking sleeve 33 to move. The conical surface 331 of the locking sleeve 33 presses against the inclined surface 321 of the elastic collet 32, applying external force to the elastic collet 32. The elastic collet 32 ​​closes inward, and the elastic sealing ring 34 undergoes corresponding elastic deformation until the elastic sealing ring 34 is tightly attached to the outside of the oil inlet pipe. The oil pipe 1 and the oil inlet pipe achieve initial sealing and fixation through welding, and secondary sealing and fixation through the sealing sleeve 3. When the weld is subjected to long-term thermal stress and vibration, and the seal fails due to mechanical fatigue, the sealing sleeve 3 can achieve sealing to prevent oil leakage.

[0043] 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 novel tooling mechanism for automotive oil cooling pipes, comprising an oil pipe (1) and an oil guide seat (2), characterized in that: The oil pipe (1) has a plane (11) at both the upper and lower ends. Two sets of screw holes (13) are provided on the plane (11). A tapered guide groove (131) is provided at the upper end of the screw hole (13). A stud (21) is provided at the lower end of the oil guide seat (2). The oil guide seat (2) includes a tapered guide part (22). Both ends of the oil pipe (1) are connection ends (12). The connection end (12) includes an outer tube (121) and an inner tube (122). A flow-blocking heat dissipation mesh (123) is provided between the outer tube (121) and the inner tube (122). A sealing sleeve (3) is fitted on the connection end (12). The sealing sleeve (3) includes a sliding sleeve (31), an elastic collet (32), a locking screw sleeve (33), and an elastic sealing ring (34).

2. The novel tooling mechanism for an automotive oil cooling pipe according to claim 1, characterized in that: The stud (21) of the oil guide seat (2) is screwed into the screw hole (13) of the oil pipe (1). The oil guide seat (2) is screwed into position and then welded to the oil pipe (1) for fixation.

3. The novel tooling mechanism for an automotive oil cooling pipe according to claim 1, characterized in that: The sliding sleeve (31) is slidably sleeved on the connecting end (12). One end of the sliding sleeve (31) is fixedly provided with an elastic collet (32), and the inner side of the elastic collet (32) is fixedly provided with an elastic sealing ring (34).

4. The novel tooling mechanism for an automotive oil cooling pipe according to claim 3, characterized in that: The outer side of the sliding sleeve (31) is provided with an external thread (311), a locking nut (33) is threaded on the sliding sleeve (31), and a sealing liner (312) is fixedly provided on the inner side of the sliding sleeve (31).

5. The novel tooling mechanism for an automotive oil cooling pipe according to claim 4, characterized in that: The locking nut (33) includes a conical surface (331), and the elastic collet (32) includes an inclined surface (321), with the conical surface (331) in close contact with the inclined surface (321).

6. The novel tooling mechanism for an automotive oil cooling pipe according to claim 5, characterized in that: Multiple sets of anti-slip ridges (332) are provided on the outer surface of the locking nut (33).

7. The novel tooling mechanism for an automotive oil cooling pipe according to claim 1, characterized in that: A first marking line (14) is provided at the screw hole (13).

8. The novel tooling mechanism for an automotive oil cooling pipe according to claim 1, characterized in that: A second marking line (23) is provided on the tapered guide portion (22) of the oil guide seat (2).

9. A novel tooling mechanism for an automotive oil cooling pipe according to claim 1, characterized in that: The flow-blocking heat dissipation mesh (123) is a medium gasket formed by stamping, and the flow-blocking heat dissipation mesh (123) is extruded and set inside the connecting end (12).

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