Automobile sunroof front and rear beam processing tool
By using a multi-reference positioning method and components such as tooling plates, positioning supports, end bearing inserts, and slot locators, the problem of insufficient positioning accuracy in the processing of front and rear beams of automotive sunroofs was solved, achieving high-precision positioning and stable processing, and improving product quality and the versatility of tooling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG HAILIN AUTOMOBILE RUBBER & PLASTIC PROD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
Existing machining fixtures for the front and rear beams of automotive sunroofs suffer from insufficient positioning accuracy. Traditional fixtures often use a single datum positioning method, which is difficult to meet the positioning requirements of complex curved surfaces, resulting in dimensional deviations or non-compliance with geometric tolerances during machining, thus affecting product quality.
A multi-reference positioning method is adopted, including tooling plate, positioning support, end bearing plug, slot locator and contour support group. The end bearing plug is matched with the inner groove at the end of the sunroof beam for positioning, the slot locator cooperates with the middle groove, and the contour support group provides uniform support to achieve high-precision positioning.
It significantly improves positioning accuracy, reduces dimensional deviations and geometric tolerance issues caused by datum deviations, ensures the quality of processed products, and enhances the versatility and processing stability of tooling.
Smart Images
Figure CN224544351U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive sunroof processing technology, and in particular to a tooling for processing the front and rear beams of an automotive sunroof. Background Technology
[0002] With the rapid development of the automotive industry and the upgrading of consumers' demands for vehicle comfort and functionality, the sunroof, as one of the core configurations to enhance the driving experience, has become a key link in vehicle manufacturing in terms of its structural design and processing precision. The front and rear beams of the sunroof, as the core supporting components of the sunroof system, not only bear the function of supporting the sunroof glass, drive mechanism and sealing components, but also need to withstand complex loads such as vibration and impact during vehicle operation. Therefore, extremely high requirements are placed on material strength, geometric tolerances and surface quality.
[0003] The existing tooling for machining the front and rear beams of automotive sunroofs has insufficient positioning accuracy. Traditional tooling often uses a single reference positioning method, which is difficult to meet the positioning requirements of complex curved surfaces. This leads to dimensional deviations or non-compliance of geometric tolerances due to reference deviations during the machining process, affecting product quality. Therefore, it needs to be improved. Utility Model Content
[0004] To address the issue of limited positioning in traditional tooling, this application provides a tooling for machining the front and rear beams of an automotive sunroof.
[0005] The technical solution for machining the front and rear beams of an automotive sunroof provided in this application is as follows:
[0006] A machining fixture for the front and rear beams of an automotive sunroof includes a fixture plate. The fixture plate has two positioning supports for fixing the ends of the sunroof beams. Each positioning support has an end bearing insert that matches the shape of a groove at the end of the sunroof beam and is inserted into the groove. The fixture plate also has a slot locator for engaging with a groove in the middle of the sunroof beam. At least one slot locator is provided. The fixture plate further includes several contour support assemblies for supporting the lower surface of the sunroof beam.
[0007] Because existing machining fixtures for the front and rear beams of automotive sunroofs have insufficient positioning accuracy, traditional fixtures often use a single datum positioning method, which is difficult to meet the positioning requirements of complex curved surfaces. This leads to dimensional deviations or non-compliance of form and position tolerances during the machining process due to datum deviations, affecting product quality. By adopting the above technical solution, including a fixture plate, two positioning supports are installed on the fixture plate. The positioning supports are positioned with the ends of the sunroof beam through end bearing plugs. The slot locator positions the middle of the sunroof beam, and a contour support assembly is installed on the fixture plate to support it.
[0008] Before processing the front and rear beam components of the sunroof, select the corresponding end bearing inserts according to the specific model of the sunroof beam to be processed, and install them on the positioning supports. Then adjust the position of the two positioning supports on the tooling plate to ensure that the distance between the two positioning supports is consistent with the distance between the ends of the sunroof beam, so as to provide a reference for subsequent end positioning. Place the sunroof beam on the tooling plate, align the grooves at both ends of the beam with the end bearing inserts of the two positioning supports, and gently push them in until the end bearing inserts are fully inserted into the grooves at the ends of the sunroof beam to complete the end positioning. According to the position of the groove in the middle of the sunroof beam, adjust the groove locator to achieve secondary positioning in the middle. Finally, along the extension direction of the sunroof beam, adjust the position of multiple sets of contour support groups in sequence to provide uniform support. After completing all positioning and support, check that it is stable and without shaking on the tooling, and start the processing equipment to process the sunroof beam.
[0009] By setting up end bearing inserts, slot locators, and contour support assemblies, high-precision machining and positioning of the front and rear beams of the automotive sunroof are achieved. The end bearing inserts match the shape of the inner groove at the end of the sunroof beam and are inserted and fixed to form the first positioning datum at the end. The slot locator cooperates with the groove in the middle of the sunroof beam to form a secondary positioning datum. Through the "end + middle" multi-datum positioning method, the problem of insufficient positioning accuracy of the traditional single datum is solved, the positioning accuracy is significantly improved, and the problems of dimensional deviation or non-compliance of form and position tolerance caused by datum deviation during the machining process are effectively reduced, ensuring the quality of subsequent processed products.
[0010] Optionally, the positioning support is provided with a mounting base plate, and the positioning base plate has a mounting groove for mounting the end support plug, which is detachably connected to the mounting groove of the mounting base plate.
[0011] By adopting the above technical solution, the mounting base is fixed on the positioning support, and the end support plug can be detachably installed in the mounting groove of the mounting base. With the setting of the mounting base and the mounting groove, the mounting base provides the mounting foundation for the end support plug, which can quickly replace the end support plug of the corresponding specification without adjusting the overall structure of the positioning support, significantly improving the versatility of the tooling and reducing the production preparation cost.
[0012] Optionally, a lateral limiting baffle is provided on one side wall of the end support, the lateral limiting baffle being used to limit the lateral displacement of the end of the skylight beam.
[0013] By adopting the above technical solution, the lateral limiting baffle can be detachably installed on one side wall of the end support plug. With the setting of the lateral limiting baffle, the lateral limiting baffle is directly attached to the edge of the end side wall of the sunroof beam. Through physical blocking, it restricts the lateral displacement that the sunroof beam may generate during processing. It complements the insertion and positioning of the end support plug and further improves the reliability of the end positioning.
[0014] Optionally, the slot locator includes a positioning bracket and a slot positioning block. The positioning bracket is arranged on a tooling plate, and the slot positioning block is connected to the top of the positioning bracket. The slot positioning block is inserted into the groove in the middle of the sunroof beam.
[0015] By adopting the above technical solution, the slot locator includes a positioning bracket and a slot positioning block. Through the setting of the positioning bracket and the slot positioning block, secondary positioning of the middle part of the sunroof beam is realized, which effectively solves the problem that traditional tooling single datum positioning is prone to dimensional deviation or non-compliance of form and position tolerance due to datum deviation. It significantly improves the processing accuracy. At the same time, with the replaceable slot positioning block (adapted to different groove shapes), it has good versatility and can adapt to the processing needs of sunroof beams of various specifications.
[0016] Optionally, the shape of the slot positioning block matches the shape of the inner groove in the middle of the sunroof beam, and a heightening pad is provided between the positioning bracket and the tooling plate, with at least one heightening pad.
[0017] By adopting the above technical solution, the shape of the slot positioning block matches the shape of the inner groove in the middle of the sunroof beam, and the positioning bracket adjusts its height by using heightening pads. The setting of heightening pads effectively improves the adaptability of the slot positioning device to different models of sunroof beams. The heightening pads can be flexibly adjusted according to the actual height of the groove in the middle of the sunroof beam to be processed, ensuring that the slot positioning block can be accurately inserted into the groove in the middle of the sunroof beam.
[0018] Optionally, the number of contour support groups is multiple, and the multiple contour support groups are distributed on both sides of the skylight beam along its extension direction.
[0019] By adopting the above technical solution, the number of contour support groups is multiple, and the multiple contour support groups are distributed on both sides of the sunroof beam along its extension direction. By setting the number and distribution of contour support groups, uniform support is achieved on the lower surface of the sunroof beam. The stress during processing is effectively dispersed through multi-point support, enhancing the sunroof beam's resistance to deformation and further ensuring processing stability.
[0020] Optionally, each of the contour support groups includes a support column, a threaded rod, and a contour support head. The support column is connected to a tooling plate, the threaded rod is threaded to the support column, and the contour support head is disposed at the top of the threaded rod and abuts against the lower surface of the sunroof beam.
[0021] By adopting the above technical solution, the contour support assembly includes a support column, a threaded rod, and a contour support head. The contour support assembly provides support for the lower surface of the sunroof beam. Combined with the height adjustment function of the threaded rod, it can adapt to the support requirements of various specifications of sunroof beams, strengthen the rigid support during processing, reduce the impact of vibration on processing accuracy, and improve the versatility of tooling through its adjustable characteristics, thereby reducing the adjustment time caused by model switching.
[0022] Optionally, the bottom of the threaded rod is provided with a knob for rotational adjustment, and the top of the contour support head is provided with a flexible pad.
[0023] By adopting the above technical solution, the knob is installed at the bottom of the threaded rod, and a flexible pad is glued to the top of the contour support head. With the setting of the knob and the flexible pad, the height of the threaded rod can be quickly adjusted by rotating the knob without the need for tools, which significantly improves the efficiency of adjusting the support height on the production site. At the same time, the flexible pad is made of flexible materials (such as rubber, silicone, etc.), which can adapt to the slight curvature or unevenness of the lower surface of the sunroof beam through its elastic deformation ability, increase the contact area to distribute pressure, and at the same time avoid surface scratches caused by direct contact between the rigid support head and the sunroof beam, thus ensuring the appearance quality of the workpiece.
[0024] In summary, this application includes at least one of the following beneficial technical effects:
[0025] 1. By setting up end support plugs, slot locators, and contour support groups, high-precision machining and positioning of the front and rear beams of the car sunroof is achieved. The end support plugs match the shape of the inner groove at the end of the sunroof beam and are inserted and fixed to form the first positioning datum at the end. The slot locator cooperates with the groove in the middle of the sunroof beam to form a secondary positioning datum. Through the "end + middle" multi-datum positioning method, the problem of insufficient positioning accuracy of the traditional single datum is solved, the positioning accuracy is significantly improved, and the problem of dimensional deviation or non-compliance of form and position tolerance caused by datum deviation during the machining process is effectively reduced, ensuring the quality of subsequent processed products.
[0026] 2. By setting the lateral limiting baffle, the lateral limiting baffle is directly attached to the edge of the side wall of the sunroof beam end. The lateral displacement of the sunroof beam during processing is limited by the physical blocking effect. This complements the insertion and positioning of the end support plug, further improving the reliability of the end positioning.
[0027] 3. By setting up positioning brackets and slot positioning blocks, secondary positioning of the middle part of the sunroof beam is realized, which effectively solves the problem that traditional tooling single datum positioning is prone to dimensional deviation or non-compliance of form and position tolerance due to datum deviation, significantly improving the processing accuracy. At the same time, with the replaceable slot positioning blocks (adapted to different groove shapes), it has good versatility and can adapt to the processing needs of sunroof beams of various specifications. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of a machining fixture for the front and rear beams of an automobile sunroof, as described in an embodiment of this application.
[0029] Figure 2 This is a structural schematic diagram illustrating the slot locator in the embodiments of this application.
[0030] Figure 3 This is a partial schematic diagram used to illustrate the contour support group in the embodiments of this application.
[0031] Explanation of reference numerals in the attached drawings: 1. Tooling plate; 2. Positioning support; 3. End bearing insert; 4. Groove locator; 41. Positioning bracket; 42. Groove positioning block; 5. Contour support assembly; 51. Support column; 52. Threaded rod; 53. Contour support head; 6. Mounting base plate; 61. Mounting groove; 7. Lateral limiting baffle; 8. Heightening pad; 9. Knob; 10. Flexible pad. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0033] This application discloses a machining fixture for the front and rear beams of an automobile sunroof. (Refer to...) Figure 1 The tooling for processing the front and rear beams of the car sunroof includes a tooling plate 1, which is flat. Two positioning supports 2 are detachably installed on the tooling plate 1. The position of the positioning supports 2 can be adjusted. The distance between the two positioning supports 2 is consistent with the distance between the ends of the sunroof beam. The two positioning supports 2 are used to fix the ends of the sunroof beam.
[0034] Reference Figure 1 Each positioning support 2 is equipped with an end bearing 3, which matches the shape of the inner groove at the end of the sunroof beam. The end bearing 3 is inserted into the groove at the end of the sunroof beam to complete the end positioning. The end bearing 3 can be selected according to the specific model of the sunroof beam to be processed. The positioning support 2 is equipped with a mounting base plate 6, which is fixed to the positioning support 2 by bolts. The mounting base plate 6 has a mounting groove 61. The end bearing 3 is inserted and fixed in the mounting groove 61 of the mounting base plate 6 and can be further fixed by bolts. The mounting base plate 6 provides the mounting foundation for the end bearing 3, which can quickly replace the end bearing 3 of the corresponding specification without adjusting the overall structure of the positioning support 2, which significantly improves the versatility of the tooling and reduces the production preparation cost.
[0035] Reference Figure 1A transverse limiting baffle 7 is installed on one side wall of the end support component 3. The transverse limiting baffle 7 is used to limit the transverse displacement of the end of the sunroof beam. In this embodiment, the transverse limiting baffle 7 is installed by the cooperation of the strip groove and bolts. The position of the transverse limiting baffle 7 is adjustable. The transverse limiting baffle 7 is directly attached to the edge of the end side wall of the sunroof beam. It limits the transverse displacement that the sunroof beam may generate during the processing by physically blocking it. It complements the insertion and positioning of the end support component 3 and further improves the reliability of the end positioning.
[0036] Reference Figure 1 A slot locator 4 is installed on the tooling plate 1. In this embodiment, the slot locator 4 is used to cooperate with the groove in the middle of the skylight beam. The number of slot locators 4 is at least one.
[0037] Reference Figure 1 and Figure 2 The slot locator 4 includes a positioning bracket 41 and a slot positioning block 42. There can be multiple positioning brackets 41, which are connected to the slot positioning block 42. The positioning brackets 41 are arranged on the tooling plate 1, and the slot positioning block 42 is connected to the top of the positioning bracket 41. The slot positioning block 42 is inserted into the groove in the middle of the sunroof beam. The shape of the slot positioning block 42 matches the shape of the groove in the middle of the sunroof beam. The slot positioning block 42 can be selected according to the specific model of the sunroof beam to be processed.
[0038] Reference Figure 1 and Figure 2 A heightening pad 8 is installed between the positioning bracket 41 and the tooling plate 1. The number of heightening pads 8 is at least one. In this embodiment, the positioning bracket 41 is fixed to the top of the heightening pad 8 by a detachable connector (such as a bolt), and the heightening pad 8 is fixed to the tooling plate 1 by a detachable connector (such as a bolt). The slot locator 4 realizes the secondary positioning of the middle part of the sunroof beam, which effectively solves the problem that the traditional tooling single reference positioning is prone to dimensional deviation or non-compliance of form and position tolerance due to reference deviation. It significantly improves the processing accuracy. At the same time, with the replaceable slot positioning block 42 (adapted to different groove shapes), it has good versatility and can adapt to the processing needs of sunroof beams of various specifications.
[0039] Reference Figure 1 and Figure 3 The tooling plate 1 is equipped with several contour support groups 5. The number of contour support groups 5 is multiple, and the multiple contour support groups 5 are distributed on both sides along the extension direction of the sunroof beam. Preferably, there are four contour support groups 5, which realizes uniform support for the lower surface of the sunroof beam. By supporting multiple points, the stress during processing is effectively dispersed, the deformation resistance of the sunroof beam is enhanced, and the processing stability is further guaranteed.
[0040] Reference Figure 3Each contour support group 5 includes a support column 51, a threaded rod 52, and a contour support head 53. The support column 51 is detachably connected to the tooling plate 1. The threaded rod 52 is vertically installed on the support column 51 and is threadedly connected to the support column 51. The contour support head 53 is located at the top of the threaded rod 52 and abuts against the lower surface of the sunroof beam. This provides support for the lower surface of the sunroof beam. With the height adjustment function of the threaded rod 52, it can adapt to the support requirements of various specifications of sunroof beams, strengthen the rigid support during processing, reduce the impact of vibration on processing accuracy, and improve the versatility of the tooling through its adjustable characteristics, reducing the adjustment time caused by model switching.
[0041] Reference Figure 3 A knob 9 is installed at the bottom of the threaded rod 52, and a flexible pad 10 is glued to the top of the contour support head 53. The knob 9 can be rotated to quickly adjust the height of the threaded rod 52 without the need for tools, which significantly improves the efficiency of adjusting the support height on the production site. At the same time, the flexible pad 10 is made of flexible materials (such as rubber, silicone, etc.), which can adapt to the slight curvature or unevenness of the lower surface of the sunroof beam through its elastic deformation ability, increase the contact area to distribute pressure, and at the same time avoid surface scratches caused by direct contact between the rigid support head and the sunroof beam, thus ensuring the appearance quality of the workpiece.
[0042] The implementation principle of the machining fixture for the front and rear beams of an automobile sunroof according to this application embodiment is as follows: Before machining the front and rear beam components of the sunroof, according to the specific model of the sunroof beam to be machined, select the corresponding specification of the end bearing insert 3 and install it into the mounting groove 61 of the positioning support 2. Then, adjust the position of the two positioning supports 2 on the fixture plate 1 to ensure that the distance between the two positioning supports 2 is consistent with the distance between the ends of the sunroof beam, providing a reference for subsequent end positioning. Place the sunroof beam on the fixture plate 1, align the grooves at both ends of the beam with the end bearing inserts 3 of the two positioning supports 2 respectively, and gently push them in until the end bearing inserts 3 are fully inserted into the end grooves of the sunroof beam. At this time, the lateral limit of the end bearing inserts 3 is... The baffle 7 will fit against the edge of the side wall at the end of the sunroof beam, initially restricting its lateral displacement and completing the end positioning. According to the position of the groove in the middle of the sunroof beam, the positioning bracket 41 of the groove locator 4 is adjusted, and the groove positioning block 42 is inserted into the groove in the middle of the sunroof beam to achieve secondary positioning in the middle. Finally, along the extension direction of the sunroof beam, the positions of multiple sets of contour support groups 5 are adjusted in sequence. By rotating the knob 9 at the bottom of the threaded rod 52, the height of the contour support head 53 is adjusted so that the top flexible pad 10 is tightly against the lower surface of the sunroof beam to provide uniform support. After all positioning and support are completed, check that it is stable and does not shake on the tooling, and start the processing equipment to process the sunroof beam.
[0043] By setting up the end support plug 3, the slot locator 4, and the contour support group 5, high-precision machining and positioning of the front and rear beams of the car sunroof is achieved. The end support plug 3 matches the shape of the inner groove at the end of the sunroof beam and is inserted and fixed to form the first positioning reference at the end. The slot locator 4 cooperates with the groove in the middle of the sunroof beam to form a secondary positioning reference. Through the "end + middle" multi-reference positioning method, the problem of insufficient positioning accuracy of the traditional single reference is solved, the positioning accuracy is significantly improved, and the problem of dimensional deviation or non-compliance of form and position tolerance caused by reference deviation during the machining process is effectively reduced, ensuring the quality of subsequent processed products.
[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A tooling for machining the front and rear beams of an automobile sunroof, characterized in that: The device includes a tooling plate with two positioning supports for fixing the ends of the sunroof beam. Each positioning support has an end bearing insert that matches the shape of the groove at the end of the sunroof beam and is inserted into the groove. The tooling plate also has a slot locator for engaging with the groove in the middle of the sunroof beam, and there is at least one slot locator. The tooling plate also has several contour support groups for supporting the lower surface of the sunroof beam.
2. The machining fixture for the front and rear beams of an automobile sunroof according to claim 1, characterized in that: The positioning support is provided with a mounting base plate, and the positioning base plate has a mounting groove for mounting the end support plug, which can be detachably connected to the mounting groove of the mounting base plate.
3. The machining fixture for the front and rear beams of an automobile sunroof according to claim 2, characterized in that: A transverse limiting baffle is provided on one side wall of the end support component, which is used to limit the transverse displacement of the end of the skylight beam.
4. The machining fixture for the front and rear beams of an automobile sunroof according to claim 1, characterized in that: The slot locator includes a positioning bracket and a slot positioning block. The positioning bracket is arranged on a tooling plate, and the slot positioning block is connected to the top of the positioning bracket. The slot positioning block is inserted into the groove in the middle of the sunroof beam.
5. The machining fixture for the front and rear beams of an automobile sunroof according to claim 4, characterized in that: The shape of the slot positioning block matches the shape of the inner groove in the middle of the sunroof beam. A heightening pad is provided between the positioning bracket and the tooling plate, and the number of the heightening pad is at least one.
6. The machining fixture for the front and rear beams of an automobile sunroof according to claim 1, characterized in that: The number of contour support groups is multiple, and the multiple contour support groups are distributed on both sides of the skylight beam along its extension direction.
7. The machining fixture for the front and rear beams of an automobile sunroof according to claim 6, characterized in that: Each of the aforementioned contour support assemblies includes a support column, a threaded rod, and a contour support head. The support column is connected to a tooling plate, the threaded rod is threaded onto the support column, and the contour support head is disposed at the top of the threaded rod and abuts against the lower surface of the sunroof beam.
8. The machining fixture for the front and rear beams of an automobile sunroof according to claim 7, characterized in that: The bottom of the threaded rod is provided with a knob for rotational adjustment, and the top of the contour support head is provided with a flexible pad.