Integrated clutch hub welding tool
The design of an integrated clutch hub welding fixture solves the problems of unstable welding and difficult slag removal, achieving stable welding of the clutch hub and effective collection of slag, thus improving welding quality and product integrity.
Patent Information
- Application Number
- CN202423059663.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-12
AI Technical Summary
In the existing technology, the welding process of clutch hub has problems such as unstable welding, difficulty in cleaning welding slag, and easy damage to the product during the welding process.
An integrated clutch hub welding fixture was designed, including an upper fixture and a lower fixture. It adopts a lifting mechanism, a positioning fixture, a flexible connecting device, and a slag collection fixture. By positioning and fixing the product components, slag splashing is avoided, and the dust collection effect is enhanced by nitrogen side blowing.
Stable welding of the clutch hub was achieved, reducing slag fall and spatter, improving welding stability and weld strength, and reducing the risk of product damage.
Smart Images
Figure CN223506545U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clutches, specifically an integrated clutch hub welding fixture. Background Technology
[0002] Laser welding is a highly efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It is an important application of laser materials processing technology and is widely used in the automotive industry, for example, in the connection of housings and hubs, and in body welding.
[0003] The main function of welding fixtures is to ensure that the relevant dimensions of the product are within specifications during the welding process and that the weld strength is stable after welding. Through the function of welding fixtures, a smooth and efficient welding process is achieved, thereby ensuring the dimensional stability and weld strength of the clutch hub.
[0004] Therefore, an integrated clutch hub welding fixture is invented to achieve the positioning of clutch hub components before welding and relative fixation during the welding process, effectively reducing damage to the clutch hub during welding and solving problems such as the difficulty in cleaning welding slag during welding. Utility Model Content
[0005] The purpose of this invention is to provide an integrated clutch hub welding fixture to solve one or more of the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model discloses an integrated clutch hub welding fixture for fixing product components to be welded. The product components include an outer clutch housing, an inner clutch housing, a balance piston, and a main rotating hub. The integrated clutch hub welding fixture includes an upper fixture and a lower fixture corresponding to the upper fixture. The lower fixture includes a positioning fixture, a fixture base, a lifting mechanism, a flexible connecting device, and a slag collection fixture. The lifting mechanism is located at the center of the fixture base corresponding to the main rotating hub. The positioning fixture is located on the fixture base, avoiding the lifting mechanism. The positioning fixture is positioned corresponding to the product. The positioning fixture includes a slag collection fixture and multiple flexible connecting devices. The flexible connecting devices are corresponding to the inner clutch housing and the balance piston. The slag collection fixture has a groove, and the weld seam between the outer clutch housing and the inner clutch housing is suspended above the groove.
[0007] In some implementations...
[0008] The bottom of the tooling base can be connected to the workbench of the welding station through a mechanism with rotation and lifting functions;
[0009] The tooling base and the positioning tooling are detachably connected.
[0010] In some embodiments, the positioning fixture is provided with three elastic flexible connecting devices, which are evenly distributed in a circumferential direction with the center of the positioning fixture as the center.
[0011] In some embodiments, the upper tooling includes multiple upper pressure components connected to the gantry and a slag protection cover. The multiple upper pressure components are arranged around the slag protection cover, and the top of the slag protection cover is movably connected to the gantry. Each upper pressure component includes a pressure sensor, a mounting base, and a roller assembly. The roller assembly is connected to the gantry of the welding station through the mounting base, and the pressure sensor is arranged corresponding to the roller assembly.
[0012] In some embodiments, the upper tooling includes three upper pressing components. Each upper pressing component has a roller group containing two rollers, namely a first roller and a second roller. The distances from the first roller and the second roller in the same roller group to the slag protection cover are not equal. The first rollers of the three upper pressing components are evenly distributed circumferentially around the slag protection cover. The second rollers of the three upper pressing components are also evenly distributed circumferentially around the slag protection cover. The first roller and the second roller are respectively corresponding to the inner clutch housing and the outer clutch housing. The roller corresponding to the inner clutch housing is also corresponding to the balance piston.
[0013] In some embodiments, a dust containment barrier is provided around the upper tooling, and the dust containment barrier has an opening that faces the welding position on the integrated clutch hub welding tooling. A dust removal pipe is connected to the opening of the barrier and is connected to a dust collection and filtration device.
[0014] In some implementations, the gantry is equipped with a nitrogen inlet pipe, and a copper pipe is installed at the outlet of the nitrogen inlet pipe. The copper pipe is positioned corresponding to the welding location. A throttle valve can be added to the copper pipe or the nitrogen inlet pipe to adjust the airflow. This structural design increases the side blowing of nitrogen, enhancing the dust collection effect.
[0015] Compared with the prior art, the beneficial effects of this utility model are: it can effectively position the outer clutch housing, inner clutch housing, balance piston, and main rotating hub, and keep them in a relatively fixed state during welding; the slag collection fixture avoids the risk of slag randomly falling into the lower fixture, facilitating timely collection and unified cleaning of slag; the slag protection cover prevents operational errors or slag splashing from affecting the main rotating hub during welding; and the elastic flexible connection device effectively reduces the friction between the product components and the fixture during use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the integrated clutch hub welding fixture in some embodiments of this utility model;
[0017] Figure 2 This is a cross-sectional structural schematic diagram of the integrated clutch hub welding fixture in some embodiments of this utility model.
[0018] Figure 3 for Figure 2 Enlarged view of section Ab in the middle;
[0019] Figure 4 for Figure 3 Enlarged view of section Bc. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1 to 4 The figure shows a preferred embodiment of the present invention, which discloses an integrated clutch hub welding fixture. The integrated clutch hub welding fixture is mainly used to position and fix the product components to assist welding. The product components include an outer clutch housing 11, an inner clutch housing 12, a balance piston 13, and a main rotating hub 14.
[0022] The integrated clutch hub welding fixture includes an auxiliary fixing fixture, which includes an upper fixture and a lower fixture. The upper fixture is fixed on the gantry frame 1 of the welding station, and the lower fixture is installed on the worktable 16 of the welding station. The upper fixture and the lower fixture are set up correspondingly.
[0023] The upper tooling includes multiple upper pressure components connected to the gantry frame 1 and a welding slag protective cover 4. The multiple upper pressure components are arranged around the welding slag protective cover 4. The top of the welding slag protective cover 4 is movably connected to the gantry frame 1. Each upper pressure component includes a pressure sensor 2, a mounting base 3, and a roller assembly 15. The roller assembly 15 is connected to the gantry frame 1 through the mounting base 3. The pressure sensor 2 is arranged corresponding to the roller assembly 15 and is installed on the roller in the roller assembly 15.
[0024] In specific implementation, the upper tooling may include three upper pressing components. Each upper pressing component has a roller group 5 containing two rollers, namely the first roller and the second roller. The distances from the first roller and the second roller in the same roller group 5 to the slag protection cover 4 are not equal. The first rollers of the three upper pressing components are evenly distributed in a circumferential direction with the slag protection cover 4 as the center. The second rollers of the three upper pressing components are also evenly distributed in a circumferential direction with the slag protection cover 4 as the center, forming a structure of two rings of six 120° evenly distributed rollers. The first roller and the second roller are respectively set to correspond to the inner clutch housing 12 and the outer clutch housing 11. The roller set to correspond to the inner clutch housing 12 is also set to correspond to the balance piston 13.
[0025] The lower fixture includes a positioning fixture 5, a fixture base 6, a lifting mechanism 7, a positioning guide post 8, a flexible connecting device 9, and a slag collection fixture 10. The fixture base 6 is connected to the worktable 16. The lifting mechanism 7 is located at the center of the fixture base 6 corresponding to the main rotating hub 14. The fixture base 6 is connected to the positioning fixture 5 through the positioning guide post 8. The positioning fixture 5 is positioned to avoid the lifting mechanism 7 and is positioned to correspond to the product. The positioning fixture 5 is equipped with a slag collection fixture 10 and multiple flexible connecting devices 9. The flexible connecting devices 9 are corresponding to the inner clutch housing 12 and the balance piston 13. The slag collection fixture 10 has a groove 101. The weld seam between the outer clutch housing 11 and the inner clutch housing 12 is suspended above the groove 101. The positioning fixture 5 and the flexible connecting devices 9 can position the product placed on the lower fixture, facilitating accurate pressing of the upper fixture and reliable welding operations. The lifting mechanism 7 can be a cylinder; the positioning guide post 8 can be an internal hex screw to form a detachable connection between the positioning fixture 5 and the fixture base 6; the positioning fixture 5 can be directly customized according to the shape of the product to be placed on it, so it will not be described in detail here; the elastic flexible connection device 9 can be directly implemented using existing devices or existing technologies, so it will not be described in detail here, and the setting of the elastic flexible connection device 9 can reduce the friction force when the inner clutch housing 12 and the balance piston 13 are positioned.
[0026] The portion corresponding to the aforementioned groove 101 can be made of graphite material for better cleaning and reduced cost.
[0027] In practice, the bottom of the tooling base 6 can be connected to the worktable 16 through a mechanism with rotation and lifting functions. The mechanism with rotation and lifting functions can be implemented directly using existing technology, such as connecting an existing lifting mechanism directly to an existing rotating mechanism, so it will not be described in detail here.
[0028] In practice, three elastic flexible connecting devices 9 can be directly set on the positioning fixture 5. The elastic flexible connecting devices 9 are evenly arranged in a circumferential direction with the center of the positioning fixture 5 as the center.
[0029] When the integrated clutch hub welding fixture is in operation, the slag protection cover 4 covers the main rotating hub 14 to prevent operational errors or slag splashing from affecting the condition of the main rotating hub 14 during the welding process.
[0030] The working principle of the integrated clutch hub welding fixture can be summarized as follows:
[0031] The products to be welded are placed into the lower fixture in the following order: inner clutch housing 12 - main hub 14 - balance piston 13 - outer clutch housing 11. The main hub 14 descends with the lifting mechanism 7, and the outer hole and lower end reference surface of the main hub 14 are connected and positioned with the lower fixture. At this time, the main hub 14 no longer descends with the lifting mechanism 7. The worktable 16 moves to the welding position, and the mechanism with rotation and lifting functions moves upward to the welding position. The upper end surface of the main hub 14 is pressed against the upper fixture with a pressure of more than 1000N. The outer clutch housing 11 is pressed against the corresponding roller, and the inner clutch housing 12 and the balance piston 13 are also pressed against the corresponding roller. The balance piston 13 and the main hub 14 are pressed into place with a clearance fit. The elastic flexible connection device 9 between the inner clutch housing 12 and the lower fixture is compressed and parallel to the outer clutch housing. Upon reaching the welding position, the laser corresponding to the integrated clutch hub welding fixture begins to emit light for welding through the welding gun head. The mechanism with rotation and lifting functions drives the lower fixture to rotate at the set welding speed. After welding is completed, the mechanism with rotation and lifting functions descends and resets, returning to the loading position. The lifting mechanism 7 moves upward to push the main rotating hub 14 and the inner clutch housing 12, balance piston 13, and outer clutch housing 11 welded to the main rotating hub 14 out of the lower fixture for easy removal.
[0032] The pressure sensor 2 in the aforementioned integrated clutch hub welding fixture can be connected to the control mechanism of the entire system in which the integrated clutch hub welding fixture is located, and the pressure value sensed by the pressure sensor 2 can be displayed through a device with display function connected to the control mechanism, so as to monitor the pressure in the integrated clutch hub welding fixture in a timely manner.
[0033] To enhance dust removal efficiency, fume containment barriers can be added around the upper fixture. These barriers have openings aligned with the welding position on the integrated clutch hub welding fixture and are connected to a dust removal pipe. The pipe openings are connected to a dust collection and filtration device, which can be an existing device and will not be described in detail here. To improve weld quality and surface aesthetics, a nitrogen inlet pipe is installed. This pipe passes through the fume containment barrier to introduce nitrogen into the barrier for side blowing. A copper pipe is installed at the outlet of this nitrogen inlet pipe, corresponding to the welding position. Both the copper pipe and the nitrogen inlet pipe can be fixed to the gantry frame 1. A throttle valve can be added to the copper pipe or the nitrogen inlet pipe to adjust the airflow and align the copper pipe opening with the welding position.
[0034] All of the above-mentioned undisclosed matters can be implemented using existing technologies, so they will not be elaborated here.
[0035] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation 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.
[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they 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.
[0037] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.
Claims
1. An integrated clutch hub welding fixture for fixing product components to be welded, the product components including an outer clutch housing, an inner clutch housing, a balance piston, and a main rotating hub, the integrated clutch hub welding fixture including an upper fixture, characterized in that: The integrated clutch hub welding fixture also includes a lower fixture corresponding to the upper fixture. The lower fixture includes a positioning fixture, a fixture base, a lifting mechanism, a flexible connecting device, and a slag collection fixture. The lifting mechanism is located at the center of the fixture base corresponding to the main rotating hub. The positioning fixture is located on the fixture base, avoiding the lifting mechanism. The positioning fixture is located corresponding to the product. The positioning fixture has a slag collection fixture and multiple flexible connecting devices. The flexible connecting devices are corresponding to the inner clutch housing and the balance piston. The slag collection fixture has a groove, and the weld between the outer clutch housing and the inner clutch housing is suspended above the groove.
2. The integrated clutch hub welding fixture according to claim 1, characterized in that: The bottom of the tooling base can be connected to the workbench of the welding station through a mechanism with rotation and lifting functions; The tooling base and the positioning tooling are detachably connected.
3. An integrated clutch hub welding fixture according to claim 1 or 2, characterized in that: The positioning fixture is equipped with three elastic flexible connecting devices, which are evenly distributed in a circumferential direction with the center of the positioning fixture as the center.
4. The integrated clutch hub welding fixture according to claim 3, characterized in that: The upper tooling includes multiple upper pressure components connected to the gantry and a welding slag protective cover. The multiple upper pressure components are arranged around the welding slag protective cover. The top of the welding slag protective cover is movably connected to the gantry. Each upper pressure component includes a pressure sensor, a mounting base, and a roller assembly. The roller assembly is connected to the gantry of the welding station through the mounting base, and the pressure sensor is set corresponding to the roller assembly.
5. The integrated clutch hub welding fixture according to claim 4, characterized in that: The upper tooling includes three upper pressing components. Each upper pressing component has a roller group containing two rollers, namely a first roller and a second roller. The distances from the first roller and the second roller in the same roller group to the welding slag protective cover are not equal. The first rollers of the three upper pressing components are evenly distributed in a circumferential direction with the welding slag protective cover as the center. The second rollers of the three upper pressing components are also evenly distributed in a circumferential direction with the welding slag protective cover as the center. The first roller and the second roller are respectively set to correspond to the inner clutch housing and the outer clutch housing. The roller set to correspond to the inner clutch housing is also set to correspond to the balance piston.
6. The integrated clutch hub welding fixture according to claim 5, characterized in that: The upper tooling is surrounded by a smoke and dust enclosure. The smoke and dust enclosure has an opening that faces the welding position on the integrated clutch hub welding tooling. A dust removal pipe is connected to the opening of the enclosure and is connected to a dust collection and filtration device.
7. The integrated clutch hub welding fixture according to claim 6, characterized in that: The gantry is equipped with a nitrogen inlet pipe, and a copper pipe is installed at the outlet of the nitrogen inlet pipe. The copper pipe is installed at the corresponding welding position. A throttle valve can be added to the copper pipe or the nitrogen inlet pipe to adjust the gas flow rate.