Automobile pipe end inner and outer chamfering mechanism

Abstract

The utility model discloses an automobile pipe fitting end portion inner and outer chamfer mechanism, including the positioning fixed component of clamping automobile pipe fitting, positioning fixed component clamps automobile pipe fitting to chamfer part, and the fixed sleeve is equipped with in the telescopic part end, positioning fixed component includes fixed base, and the fixed base end extension has the locating post, and still be equipped with the limiting plate between the locating post with fixed base, a plurality of interval even fixed blocks are installed on the locating post outer wall, a plurality of interval even locating holes are seted up on the fixed sleeve, and fixed screw hole is seted up on the fixed base, the utility model discloses through locating post and the fixed block with spring cooperation, can automatically adapt and closely support in the different diameter section of automobile pipe fitting inner wall, has realized to the automatic centering and flexible clamping of pipe fitting, and fixed block is telescopic under the action of fixed spring, makes this mechanism can adapt to the automobile pipe fitting of different inner diameter in a certain range.

Description

Technical Field

[0001] This utility model specifically relates to an inner and outer chamfering mechanism for the end of an automotive pipe fitting. Background Technology

[0002] In the automotive manufacturing industry, pipe fittings are key connecting components for core systems such as fuel supply, braking control, and air conditioning circulation. The quality of their end processing directly determines the assembly sealing, connection strength, and system operational safety. Whether it's an air conditioning pipe made of aluminum alloy, an exhaust system pipe made of stainless steel, or a brake hose made of high-strength steel, the ends must be chamfered both internally and externally. This process removes burrs and sharp edges after cutting, preventing scratches to the sealing rings or operators during assembly. It also provides a smooth transition surface for subsequent processes such as welding and threaded connections, reducing the risk of leakage.

[0003] Currently, automotive pipe fittings come in various diameters, and the same vehicle model often requires fittings of more than ten different lengths and wall thicknesses. Existing chamfering equipment is mostly designed for a single specification. When changing the processing model, the entire set of fixtures and tools must be disassembled and replaced, resulting in long mold change times. Furthermore, the concentricity of the tools and pipe fittings needs to be repeatedly calibrated during the adjustment process, which severely restricts the response speed of multi-variety, small-batch production.

[0004] Therefore, it is necessary to invent a mechanism for chamfering the inner and outer ends of automotive pipe fittings to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes an inner and outer chamfering mechanism for the end of automotive pipe fittings, which can quickly position and fix pipe fittings of different diameters.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an inner and outer chamfering mechanism for the end of an automotive pipe, including a positioning and fixing component for clamping the automotive pipe, wherein the positioning and fixing component clamps the automotive pipe into the chamfering component; The positioning and fixing component is installed at the end of the telescopic member, and the end of the telescopic member is provided with a fixing sleeve, and the positioning and fixing component is installed at the end of the fixing sleeve. The positioning and fixing assembly includes a fixing base, which is installed inside the fixing sleeve. A positioning post extends from the end of the fixing base. A limiting plate is also provided between the positioning post and the fixing base. The limiting plate is placed on the outside of the fixing sleeve. Multiple evenly spaced fixing blocks are installed on the outer wall of the positioning post. The multiple fixing blocks together support the inner wall of the automotive pipe fitting. The fixed sleeve has multiple evenly spaced positioning holes, and the fixed base has fixing screw holes that match the positioning holes. Fixing bolts are installed in the fixing screw holes and the positioning holes.

[0007] Preferably, the outer wall of the positioning column is provided with a plurality of evenly spaced telescopic grooves, the fixing blocks are installed in the plurality of telescopic grooves, the bottom of the plurality of fixing blocks is provided with a fixing spring between the bottom of the plurality of fixing blocks and the bottom of the telescopic groove, the bottom edge of the fixing block is also provided with a limiting strip, and the opening of the telescopic groove is provided with a matching limiting frame.

[0008] Preferably, the top of the fixing block is also provided with a pad, and the top of the pad is arc-shaped.

[0009] Preferably, the outer wall of the fixing sleeve is provided with multiple locking planes, the positioning holes are all provided on the locking planes, and the positioning holes are consistent with the inner diameter of the fixing screw hole. The end of the fixing bolt is provided with a thread that matches the inner wall of the fixing screw hole, and the other end of the fixing bolt is provided with a locking knob.

[0010] Preferably, the size of the limiting plate is larger than the internal diameter of the fixing sleeve and larger than the outer diameter of the automotive pipe.

[0011] Preferably, the end of the positioning post is tapered, with its apex set as a hemispherical shape, and the overall length of the positioning post does not exceed the length of the automotive pipe.

[0012] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: 1. This utility model, through the cooperation of a positioning post and a fixing block with a spring, can automatically adapt to and tightly support different diameter sections on the inner wall of automotive pipe fittings, realizing automatic centering and flexible clamping of the pipe fittings; this effectively avoids the pipe fittings from shifting or vibrating during processing, ensuring the accuracy and consistency of chamfering. 2. The fixing block of this utility model is telescopic under the action of the fixing spring, which enables the mechanism to adapt to automotive pipe fittings with different inner diameters within a certain range. It eliminates the need to replace the special clamps for each specification of pipe fitting, improves the versatility of the equipment, and reduces the cost of use and changeover time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall chamfering process of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of the positioning and fixing component and the automotive pipe component of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the telescopic component front end positioning and fixing assembly of this utility model; Figure 4 This is a schematic diagram of the disassembled fixing block structure of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Automotive pipe fittings; 2. Positioning and fixing components; 21. Fixing base; 22. Positioning post; 23. Limiting plate; 24. Fixing block; 241. Limiting strip; 242. Pad; 25. Fixing screw hole; 26. Telescopic groove; 261. Limiting frame; 27. Fixing spring; 3. Chamfered component; 4. Telescopic component; 41. Fixing sleeve; 42. Positioning hole; 43. Locking plane; 5. Fixing bolt; 51. Locking knob. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-4 The illustrated automotive pipe fitting end inner and outer chamfering mechanism includes a positioning and fixing component 2 for clamping the automotive pipe fitting 1, the positioning and fixing component 2 clamping the automotive pipe fitting 1 into the chamfering component 3; Specifically, the positioning and fixing component 2 is installed at the end of the telescopic component 4, and the end of the telescopic component 4 is provided with a fixing sleeve 41, and the positioning and fixing component 2 is installed at the end of the fixing sleeve 41. Specifically, the positioning and fixing component 2 includes a fixing base 21, which is installed inside the fixing sleeve 41. A positioning post 22 extends from the end of the fixing base 21. A limiting plate 23 is also provided between the positioning post 22 and the fixing base 21. The limiting plate 23 is placed on the outside of the fixing sleeve 41. Multiple evenly spaced fixing blocks 24 are installed on the outer wall of the positioning post 22. The multiple fixing blocks 24 together support the inner wall of the automotive pipe fitting 1. Specifically, the fixed sleeve 41 has a plurality of evenly spaced positioning holes 42, and the fixed base 21 has a fixing screw hole 25 that matches the positioning holes 42. Fixing bolts 5 are provided in the fixing screw hole 25 and the positioning holes 42.

[0018] Specifically, the outer wall of the positioning post 22 is provided with multiple evenly spaced telescopic grooves 26, and fixing blocks 24 are installed in the multiple telescopic grooves 26. Fixing springs 27 are provided between the bottom of the multiple fixing blocks 24 and the bottom of the telescopic grooves 26. Limiting strips 241 are also provided at the bottom edge of the fixing blocks 24, and matching limiting frames 261 are provided at the opening of the telescopic grooves 26.

[0019] Specifically, the top of the fixing block 24 is also provided with a pad block 242, and the top of the pad block 242 is curved.

[0020] Specifically, the outer wall of the fixed sleeve 41 is provided with multiple locking planes 43, and the positioning holes 42 are all provided on the locking planes 43. The positioning holes 42 are consistent with the inner diameter of the fixing screw hole 25. The end of the fixing bolt 5 is provided with a thread that matches the inner wall of the fixing screw hole 25, and the other end of the fixing bolt 5 is provided with a locking knob 51.

[0021] Specifically, the size of the limiting plate 23 is larger than the internal diameter of the fixing sleeve 41 and larger than the outer diameter of the automotive fitting 1.

[0022] Specifically, the end of the positioning post 22 is tapered, and its apex is set as a hemispherical shape. The overall length of the positioning post 22 does not exceed the length of the automotive pipe 1.

[0023] In this embodiment, the fixing sleeve 41 is fixedly installed at the end of the telescopic component 4 to ensure that the connection between the two is firm and there is no relative looseness. The fixing sleeve 41 serves as the installation carrier for the positioning and fixing assembly 2, and its axis must be coincident with the telescopic axis of the telescopic component 4 to ensure the coaxiality of the subsequent pipe positioning.

[0024] In this embodiment, the assembly of the positioning and fixing assembly involves embedding the fixing base 21 into the fixing sleeve 41, so that the limiting plate 23 at the end of the fixing base 21 fits against the outer end face of the fixing sleeve 41. At this time, the position of the fixing base 21 needs to be adjusted so that the fixing screw holes 25 on the fixing base 21 correspond one-to-one with the positioning holes 42 on the fixing sleeve 41. The positioning holes 42 are all located on the locking plane 43 on the outer wall of the fixing sleeve 41. The locking plane 43 provides a stable support surface, preventing slippage when installing the fixing bolts 5. Then, the fixing bolts 5 are passed through the positioning holes 42 and screwed into the fixing screw holes 25, and tightened using the locking knob 51, achieving a rigid connection between the fixing base 21 and the fixing sleeve 41.

[0025] In this embodiment, the assembly of the fixing block and the positioning post involves installing the fixing block 24 into multiple evenly spaced telescopic grooves 26 pre-set on the outer wall of the positioning post 22. A fixing spring 27 is placed between the bottom of the fixing block 24 and the bottom of the telescopic groove 26, causing the fixing block 24 to tend to extend outward under the preload of the fixing spring 27. During installation, it is necessary to ensure that the limiting strip 241 at the bottom edge of the fixing block 24 is embedded in the groove wall of the telescopic groove 26, and that the limiting frame 261 at the groove opening of the telescopic groove 26 cooperates with the limiting strip 241 to prevent the fixing block 24 from falling out of the telescopic groove 26 during the telescopic process. Finally, a pad 242 is attached to or bolted to the top of the fixing block 24. The pad 242 is made of elastic wear-resistant material, and its top is machined into an arc-shaped structure that fits the inner wall of the automotive pipe fitting 1.

[0026] In this embodiment, high-precision positioning of automotive pipe fittings is achieved through a multi-positioning structure: the tapered end of the positioning post 22 acts as a guide, facilitating quick centering and fitting of the pipe fitting; multiple evenly spaced fixing blocks 24, under the action of the fixing spring 27, form a uniform clamping force on the inner wall of the pipe fitting, ensuring that the axis of the pipe fitting is highly aligned with the axis of the positioning post 22, effectively preventing radial displacement of the pipe fitting during processing; the limiting plate 23 cooperates with the fixing sleeve 41 to achieve axial limiting of the pipe fitting, preventing axial movement of the pipe fitting during chamfering.

[0027] In this embodiment, the arc-shaped pad 242 on the top of the fixing block 24 is made of elastic wear-resistant material. On the one hand, the arc-shaped structure can fit tightly with the inner wall of pipes with different inner diameters, increasing the contact area while reducing local pressure and avoiding damage to the inner wall of the pipe. On the other hand, the elastic material can absorb slight vibrations during the processing and reduce the impact of vibrations on processing accuracy.

[0028] In this embodiment, the assembly and debugging process of the mechanism is simple and easy to understand. The design of the fixing bolt 5 and the locking knob 51 makes it possible to disassemble and assemble the fixed base 21 without special tools, and a single person can complete the operation. The clamping and disassembly of the automotive pipe parts are achieved by the automatic extension and retraction of the elastic fixing block 24, which simplifies the operation process.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A chamfering mechanism for the inner and outer ends of automotive pipe fittings, characterized in that: The system includes a positioning and fixing assembly (2) for clamping automotive pipe fittings (1), wherein the positioning and fixing assembly (2) clamps the automotive pipe fittings (1) into the chamfered component (3); The positioning and fixing component (2) is installed at the end of the telescopic component (4), and the end of the telescopic component (4) is provided with a fixing sleeve (41), and the positioning and fixing component (2) is installed at the end of the fixing sleeve (41). The positioning and fixing assembly (2) includes a fixing base (21), which is installed inside the fixing sleeve (41). A positioning post (22) extends from the end of the fixing base (21). A limiting plate (23) is also provided between the positioning post (22) and the fixing base (21). The limiting plate (23) is placed outside the fixing sleeve (41). A plurality of evenly spaced fixing blocks (24) are installed on the outer wall of the positioning post (22). The plurality of fixing blocks (24) together support the inner wall of the automotive pipe fitting (1). The fixed sleeve (41) has a plurality of evenly spaced positioning holes (42), and the fixed base (21) has a fixing screw hole (25) matching the positioning hole (42). Fixing bolts (5) are provided in the fixing screw hole (25) and the positioning hole (42).

2. The inner and outer chamfering mechanism for the end of an automotive pipe fitting according to claim 1, characterized in that: The outer wall of the positioning post (22) is provided with a plurality of evenly spaced telescopic grooves (26), and the fixing blocks (24) are installed in the plurality of telescopic grooves (26). A fixing spring (27) is provided between the bottom of the plurality of fixing blocks (24) and the bottom of the telescopic grooves (26). A limiting strip (241) is also provided at the bottom edge of the fixing blocks (24), and a matching limiting frame (261) is provided at the opening of the telescopic grooves (26).

3. The inner and outer chamfering mechanism for the end of an automotive pipe fitting according to claim 2, characterized in that: The top of the fixing block (24) is also provided with a pad (242), and the top of the pad (242) is arc-shaped.

4. The inner and outer chamfering mechanism for the end of an automotive pipe fitting according to claim 1, characterized in that: The outer wall of the fixed sleeve (41) is provided with multiple locking planes (43), the positioning holes (42) are all provided on the locking planes (43), and the positioning holes (42) are consistent with the inner diameter of the fixed screw hole (25). The end of the fixed bolt (5) is provided with a thread that matches the inner wall of the fixed screw hole (25), and the other end of the fixed bolt (5) is provided with a locking knob (51).

5. The inner and outer chamfering mechanism for the end of an automotive pipe fitting according to claim 1, characterized in that: The size of the limiting plate (23) is larger than the internal diameter of the fixing sleeve (41) and larger than the outer diameter of the automotive pipe (1).

6. The inner and outer chamfering mechanism for the end of an automotive pipe fitting according to claim 1, characterized in that: The end of the positioning post (22) is tapered, and its apex is set as a hemispherical shape. The overall length of the positioning post (22) does not exceed the length of the automotive pipe (1).

Images