Automobile frame assembly fixture
By designing automotive frame assembly fixtures, positioning benchmarks and auxiliary fixing are provided, and part errors can be quickly identified, solving the problem of excessively long adaptation cycles for body-in-white parts and improving assembly accuracy and trial production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU AUTOMIBILE GRP MOTOR
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-09
AI Technical Summary
During the welding and assembly process of body-in-white parts, the parts adaptation cycle is too long and the accuracy cannot be guaranteed. In particular, it is difficult to confirm that the dimensions of the parts of the front engine compartment frame meet the accuracy requirements before welding, resulting in cumbersome operation and low efficiency.
Design an automotive frame assembly fixture, including a front engine compartment module, an A-pillar inner panel module, fasteners, a multi-hole mounting plate, positioning components, and clamping components. The fixture is calibrated using a laser tracker to provide a positioning reference and auxiliary fixation, and to quickly identify and optimize part errors.
It shortens the adaptation cycle of body-in-white parts, improves assembly accuracy and trial production efficiency, quickly identifies part fitting errors, and ensures a shorter new vehicle development cycle.
Smart Images
Figure CN224333795U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing technology, and more specifically, to an automobile frame assembly fixture. Background Technology
[0002] With the increasing penetration of new energy vehicles and the growing number of cars on the road, major automakers are updating their models more frequently to improve quality and efficiency in the manufacturing process. To quickly gain customer attention and enhance competitiveness, automakers are required to shorten new car development cycles while improving component quality and body-in-white precision. During body-in-white prototyping, the lower body is assembled from approximately 38 welded parts, such as the left and right front and rear longitudinal beams, left and right door sills, and left and right A-pillar inner panels. These parts are typically assembled into a front engine compartment frame, a front floor frame, and a rear floor frame. Assembling these three frames together forms the lower body. However, during the prototyping stage, the production line is not highly automated, resulting in low efficiency and inconsistent precision in component assembly. For the front engine compartment frame, many components are supplied by vendors. It is difficult to determine the precision requirements of some components before welding and assembly, such as the surface shape, edges, and mounting hole positions. Measurements can only be taken after welding to confirm dimensional errors and provide feedback to the supplier for adjustments. This complex and cumbersome process leads to excessively long adaptation cycles for body-in-white components. Utility Model Content
[0003] To overcome the shortcomings of the excessively long adaptation cycle of body-in-white parts in the prior art, this utility model provides an automotive frame assembly fixture that provides positioning references and auxiliary fixation for various body-in-white parts, thereby enabling rapid identification of part errors and feedback optimization, and shortening the adaptation cycle of body-in-white parts.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automobile frame assembly fixture, comprising: a front engine compartment module, a left A-pillar inner panel module and a right A-pillar inner panel module slidably connected to the front engine compartment module, a fixing component connected to the left A-pillar inner panel module and the right A-pillar inner panel module respectively, a position calibration component, a multi-hole mounting plate, a positioning component, and a clamping component; the front engine compartment module includes a base frame, a first horizontal mounting platform and a second horizontal mounting platform respectively disposed on the base frame; the left A-pillar inner panel module and the right A-pillar inner panel module each include components slidably connected to the front engine compartment module. A vertical mounting platform with sliding block connection; multiple perforated mounting plates and several position calibration components are respectively adjustablely mounted on the first horizontal mounting platform, the second horizontal mounting platform, and the vertical mounting platform; the clamping assembly and the positioning assembly are respectively mounted on the perforated mounting plates; the first horizontal mounting platform is higher than the second horizontal mounting platform; the fixing component is used to fix the left A-pillar inner panel module and the right A-pillar inner panel module to the front engine compartment module respectively; the positioning assembly is used for positioning the body-in-white parts respectively; and the clamping assembly is used for clamping the body-in-white parts respectively.
[0005] In the lower body of the body-in-white, the front engine compartment frame generally includes the left front longitudinal beam assembly, the right front longitudinal beam assembly, the front arm panel assembly, and the exterior air panel assembly. After each component assembly is assembled separately, they are combined to form the front engine compartment frame. The left and right A-pillar inner panel assemblies also need to be assembled on the upper left and right sides of the front engine compartment frame, respectively. In this assembly fixture, the front engine compartment module provides positioning and fixation for the various components of the front engine compartment frame. The front engine compartment module is equipped with a first horizontal mounting platform and a second mounting platform at different heights. Positioning components and clamping components are respectively... The perforated mounting plate is installed on the first and second horizontal mounting platforms to clamp and position the various parts of the front engine compartment frame. The first horizontal mounting platform is slightly higher to support the left and right front longitudinal beams located at the front. The height of the clamping or positioning components is relatively low to ensure stable support and clamping. The second horizontal mounting platform is slightly lower, firstly because it is recessed according to the shape of the body-in-white, and secondly because it is recessed by more dimensions to leave more installation and operation space, which facilitates the fixing and assembly of the front arm panel assembly and the air exterior panel assembly with many parts, making installation easier.
[0006] The left and right A-pillar inner panel modules are used to position and fix the various parts of the left and right A-pillar inner panel assemblies, respectively. Each module has a vertical mounting platform. Positioning and clamping components are mounted on the two platforms via perforated mounting plates, thus positioning and fixing the parts of the left and right A-pillar inner panel assemblies. The left and right A-pillar inner panel modules are also slidably connected to the front engine compartment module. When not in use, the left and right A-pillar inner panel modules can be moved away and fixed with fasteners to prevent them from obstructing the installation of other parts. When needed, the left and right A-pillar inner panel modules clamp the left and right A-pillar inner panel assemblies for movement and alignment, saving labor and improving assembly accuracy. After being moved into position, they are fixed with fasteners, such as bolts, pins, clips, or locks.
[0007] During initial assembly or vehicle model changeovers, this assembly fixture uses a laser tracker with various positional calibration components as coordinate references to determine the installation positions of each positioning and clamping component, ensuring positioning accuracy. The multi-hole mounting plate, along with the first horizontal mounting platform, second horizontal mounting platform, and vertical mounting platform, is adjustable. This allows for easy adjustment of the multi-hole mounting plate's position, thereby adjusting the positions of the positioning and clamping components, accommodating a wider range of vehicle models. Furthermore, the multi-hole mounting plate features an array of multiple mounting holes, allowing for installation at any position on a single plate surface. The positioning positions of each positioning component and the clamping positions of each clamping component are set according to the specific characteristics of the part. Each part has 2-4 positioning or clamping points, thus restricting the XYZ axes of each part and achieving part positioning and fixation.
[0008] With the above settings, this assembly fixture can provide an installation benchmark for the front engine compartment and left and right A-pillar parts of the body-in-white. During the assembly process, it can fully reflect the actual positioning, welding and matching process of each part, thereby quickly identifying the fit error between parts or the rationality of the installation point. It can quickly provide feedback on the problem, improve the efficiency of part optimization, shorten the adaptation cycle of body-in-white parts, and thus quickly achieve the established quality goals, improve the efficiency of body-in-white prototyping and shorten the new car development cycle.
[0009] Preferably, the assembly further includes a position adjustment component mounted on the perforated mounting plate. The position adjustment component includes a column detachably connected to the perforated mounting plate, a support plate detachably connected to the column, a first connecting plate detachably connected to the support plate, a second connecting plate detachably connected to the first connecting plate, a first adjusting piece disposed between the first connecting plate and the second connecting plate, a component mounting plate detachably connected to the second connecting plate, and a second adjusting piece. Limiting blocks are respectively provided on the first and second sides of the second connecting plate. The second adjusting pieces are respectively disposed between the limiting blocks and the sides of the component mounting plate. The first side and the second side are perpendicular to each other. The clamping component and the positioning component are respectively mounted on the component mounting plate.
[0010] Position adjustment components are provided to further enhance the adjustability of the positioning and clamping components, and also to improve their positioning and clamping accuracy. Specifically, the column serves a lifting function, with the lifting height depending on the part; for lower parts, the column can be omitted. The support plate provides support and also acts as a small mounting platform to simultaneously mount and support multiple positioning or clamping components. A first adjustment piece is positioned between the top of the first connecting plate and the bottom of the second connecting plate. By adding, removing, or replacing the first adjustment piece with the same or different thickness, the height of the second connecting plate can be adjusted. Similarly, second adjustment pieces are provided on the sides of the limiting block and the second connecting plate to adjust the lateral and longitudinal positions of the second connecting plate. The component mounting plate is mounted on the second connecting plate, and the positioning and clamping components are mounted on the component mounting plate. The first and second adjustment pieces can then be used to make fine adjustments to the positions of the positioning and clamping components, ensuring the installation accuracy of the positioning and clamping components, and thus ensuring the assembly accuracy of the body-in-white.
[0011] Preferably, the clamping assembly includes a perforated pin connected to the porous mounting plate, and both the first horizontal mounting platform and the second horizontal mounting platform are each equipped with at least two of the perforated pins.
[0012] The retractable pin structure used in the automotive industry is a type of retractable pin structure. The retractable pin has a clamping function and is used to achieve internal clamping by using holes when the product cannot be externally clamped on the reference surface. There are two types: with positioning holes and without positioning holes. In this assembly fixture, the retractable pin also serves as a support structure to internally clamp the holes at the bottom of the body-in-white parts. Multiple pins are set to ensure the stability of support and clamping.
[0013] Preferably, the clamping assembly further includes a first clamping member, which includes a first connecting block connected to the multi-hole mounting plate, a first abutting block connected to the first connecting block, a second connecting block connected to the multi-hole mounting plate or the first connecting block, a second abutting block connected to the second connecting block, and a first bolt threaded through the second abutting block and connected to the second connecting block. The first abutting block and the second abutting block are respectively provided with a contoured abutting surface. When the first bolt is tightened, the second abutting block moves toward the first abutting block and clamps the part.
[0014] The first clamping component adopts a threaded clamping method. Both the first connecting block and the second connecting block serve to connect and extend. The first abutting block and the second abutting block are working parts. The second abutting block is movably connected to the second connecting block. Under the adjustment of the tightening of the first bolt, the second abutting block approaches the first abutting block and clamps the part. Both the first abutting block and the second abutting block are respectively provided with a contoured abutting surface. The shape of the contoured abutting surface is set according to the contour of the part at the clamping location to increase the contact area and improve the clamping stability.
[0015] Preferably, the first clamping member further includes an adjusting block connected to the first connecting block, a slider connected to the first abutting block, a second bolt threaded to the slider, and a first elastic member with its two ends abutting against the first connecting block and the second bolt respectively. The slider is slidably connected to the first connecting block. The first connecting block is provided with a transverse groove. The adjusting block is slidably disposed in the transverse groove. The sliding directions of the slider and the adjusting block are perpendicular to each other. The top of the adjusting block is provided with multiple adjusting working surfaces of different heights. The slider abuts against the adjusting working surfaces under the elastic force of the first elastic member.
[0016] The first abutment block can move relative to the first connecting block as the slider moves. When the slider slides towards the adjusting block, it is restricted by the adjusting block, i.e., it abuts against the adjusting working surface of the adjusting block. When the slider slides away from the adjusting block, it compresses the first elastic element and is also restricted by the second bolt. When the slider is not subject to external force adjustment, under the elastic force of the first elastic element, the bottom of the slider abuts against the adjusting working surface. Therefore, by moving the position of the adjusting block, the slider can abut against the adjusting working surface at different heights, thus allowing for rapid adjustment of the position of the first abutment block to clamp parts of different thicknesses. Furthermore, ramps are provided between the various adjusting working surfaces, allowing the adjusting block to be pushed or pulled directly during adjustment.
[0017] Preferably, the clamping assembly further includes a second clamping member, which includes a third connecting block and a fourth connecting block respectively connected to the multi-hole mounting plate, a third abutment block connected to the third connecting block, a first connecting rod connected to the fourth connecting block, a quick clamp connected to the first connecting rod, and a fourth abutment block connected to the working end of the quick clamp. When the quick clamp clamps, the fourth abutment block moves toward the third abutment block and clamps the part.
[0018] The second clamping component has a similar structure to the first clamping component. The difference is that the second clamping component uses a quick clamp for clamping. Quick clamps are common clamping mechanisms in the mechanical field. According to the clamping method, they can be divided into horizontal clamps and vertical clamps. According to the driving method, they can be divided into manual clamps or start-up clamps. The specific choice can be made according to the needs. Using quick clamps can improve the clamping and releasing speed of the second clamping component. It is suitable for large space positions or long-distance clamping.
[0019] Preferably, the second clamping member further includes a third bolt threadedly connected to the fourth connecting block, a limiting ring slidably connected to the first connecting rod, and a fourth bolt threadedly connected to the limiting ring. The first connecting rod is slidably connected to the fourth connecting block, the bottom of the limiting ring abuts against the top of the fourth connecting block, and the ends of the third bolt and the fourth bolt abut against the first connecting rod respectively.
[0020] The first connecting rod is slidably connected to the fourth connecting block to facilitate adjustment of the position of the first connecting rod. The limiting ring is fitted on the first connecting rod and can slide relative to the first connecting rod. The fourth bolt is threadedly connected to the limiting ring and passes through the limiting ring to abut against the first connecting rod. Tightening the fourth bolt can fix the limiting ring on the first connecting rod. The third bolt is set in a similar way to the fourth bolt. When tightened, it can fix the first connecting rod on the fourth connecting block. Then, the limiting ring limits the radial movement of the first connecting rod, and the third bolt fixes the first connecting rod circumferentially.
[0021] Preferably, the positioning component includes a fifth connecting block connected to the multi-hole mounting plate, a sixth connecting block connected to the fifth connecting block, and a positioning pin. The sixth connecting block is provided with a positioning hole, and the positioning pin is slidably connected to the positioning hole.
[0022] In the positioning assembly, the positioning hole on the sixth connecting block is opposite to the hole of the body-in-white part, and the end of the positioning pin passes through the part and is inserted into the positioning hole, thereby positioning the part.
[0023] Preferably, the vertical mounting platform includes a lower mounting platform slidably connected to the forward engine compartment module and an upper mounting platform detachably connected to the lower mounting platform, wherein the position calibration component is respectively installed on both the lower mounting platform and the upper mounting platform.
[0024] Both the left and right A-pillar inner panel modules include vertical mounting platforms. The vertical mounting platforms consist of a lower mounting platform and an upper mounting platform. The lower mounting platform is relatively low and can be installed on the front engine compartment module for a long time. The upper mounting platform can be removed when not needed to avoid obstructing the installation of other parts.
[0025] Preferably, multiple casters are installed on the bottom of the base frame and the back of the upper mounting platform.
[0026] The base frame is equipped with casters, allowing the assembly fixture to be moved as a whole. The upper mounting platform is also equipped with casters on its back, allowing it to be moved when disassembled, making it more labor-saving and convenient to use.
[0027] Compared with the prior art, the beneficial effects of this utility model are:
[0028] It provides an installation benchmark for the front engine compartment and left and right A-pillars of the body-in-white, and during the assembly process, it can fully reflect the actual positioning, welding and matching process of each part. This allows for the rapid identification of fit errors between parts or the rationality of installation points, enabling quick feedback of problems, improving the efficiency of part optimization, shortening the body-in-white part adaptation cycle, and thus quickly achieving the established quality goals, improving the efficiency of body-in-white prototyping and shortening the new vehicle development cycle. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure of an automobile frame assembly fixture according to this utility model;
[0030] Figure 2 yes Figure 1 Enlarged schematic diagram of part A;
[0031] Figure 3 This is a schematic diagram of the front engine compartment structure of an automobile frame assembly fixture according to this utility model;
[0032] Figure 4 This is a schematic diagram of the left A-pillar inner panel module structure of an automobile frame assembly fixture according to this utility model;
[0033] Figure 5 This is a schematic diagram of the positioning component structure of an automobile frame assembly fixture according to this utility model;
[0034] Figure 6 This is a schematic diagram of the position adjustment component of an automobile frame assembly fixture according to this utility model;
[0035] Figure 7 This is a schematic diagram of the structure of the first clamping component of an automobile frame assembly fixture according to this utility model;
[0036] Figure 8 This is a schematic diagram of the second clamping component of an automobile frame assembly fixture according to the present invention.
[0037] In the diagram: 1. Front engine compartment module; 2. Left A-pillar inner panel module; 3. Right A-pillar inner panel module; 4. Fixing component; 5. Positioning calibration component; 6. Multi-hole mounting plate; 7. Positioning assembly; 701. Fifth connecting block; 702. Sixth connecting block; 702a. Positioning hole; 703. Positioning pin; 8. Clamping assembly; 9. Base frame; 10. First horizontal mounting platform; 11. Second horizontal mounting platform; 12. Vertical mounting platform; 1201. Lower mounting platform; 1202. Upper mounting platform; 13. Position adjustment assembly; 1301. Column; 1302. Support plate; 1303. First connecting plate; 1304. Second connecting plate; 1304a. Limiting block; 1305. First adjusting piece; 1306. Component mounting plate; 1307. Second adjusting plate; 14. Opening pin; 15. First clamping component; 1501. First connecting block; 1501a. Transverse groove; 1502. First abutting block; 1503. Second connecting block; 1504. Second abutting block; 1505. First bolt; 1506. Adjusting block; 1506a. Adjusting working surface; 1507. Sliding block; 1508. Second bolt; 1509. First elastic element; 16. Second clamping component; 1601. Third connecting block; 1602. Fourth connecting block; 1603. Third abutting block; 1604. First connecting rod; 1605. Quick clamp; 1606. Fourth abutting block; 1607. Third bolt; 1608. Limiting ring; 1609. Fourth bolt; 17. Moving wheel. Detailed Implementation
[0038] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.
[0039] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0040] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:
[0041] Example 1
[0042] like Figure 1-4 As shown, an automotive frame assembly fixture includes: a front engine compartment module 1, a left A-pillar inner panel module 2 and a right A-pillar inner panel module 3 respectively slidably connected to the front engine compartment module 1, a fixing member 4 respectively connected to the left A-pillar inner panel module 2 and the right A-pillar inner panel module 3, a position calibration member 5, a multi-hole mounting plate 6, a positioning assembly 7, and a clamping assembly 8; the front engine compartment module 1 includes a base frame 9, a first horizontal mounting platform 10 and a second horizontal mounting platform 11 respectively mounted on the base frame 9; the left A-pillar inner panel module 2 and the right A-pillar inner panel module 3 each include components slidably connected to the front engine compartment module 1. The vertical mounting platform 12 is connected; multiple perforated mounting plates 6 and several position calibration components 5 are adjustablely mounted on the first horizontal mounting platform 10, the second horizontal mounting platform 11 and the vertical mounting platform 12 respectively. The clamping component 8 and the positioning component 7 are respectively mounted on the perforated mounting plate 6. The first horizontal mounting platform 10 is higher than the second horizontal mounting platform 11. The fixing component 4 is used to fix the left A-pillar inner panel module 2 and the right A-pillar inner panel module 3 to the front engine compartment module 1 respectively. The positioning component 7 is used for positioning the body-in-white parts respectively. The clamping component 8 is used for clamping the body-in-white parts respectively.
[0043] In the lower body of the white body, the front engine compartment frame generally includes the left front longitudinal beam assembly, the right front longitudinal beam assembly, the front arm panel assembly, and the air intake panel assembly. After each component assembly is assembled separately, they are combined to form the front engine compartment frame. The left and right A-pillar inner panel assemblies and the right A-pillar inner panel assemblies also need to be assembled on the upper left and right sides of the front engine compartment frame, respectively. In this assembly fixture, the front engine compartment module 1 provides positioning and fixing for the various components of the front engine compartment frame. The front engine compartment module 1 is equipped with a first horizontal mounting platform 10 and a second mounting platform of different heights. The positioning component 7 and the clamping component 8 are respectively connected through multi-hole... Mounting plate 6 is installed on the first horizontal mounting platform 10 and the second horizontal mounting platform 11 to clamp and position various parts of the front engine compartment frame. The first horizontal mounting platform 10 is slightly higher to support the left and right front longitudinal beams located at the front. The height of the clamping component 8 or positioning component 7 is relatively low to ensure stable support and clamping. The second horizontal mounting platform 11 is slightly lower, firstly because it is recessed according to the shape of the body-in-white, and secondly because it is recessed by more dimensions to leave more installation and operation space, which facilitates the fixing and assembly of the front arm plate assembly and the air exterior panel assembly with many parts, making installation easier.
[0044] The left A-pillar inner panel module 2 and the right A-pillar inner panel module 3 are used to provide positioning and fixing for various parts of the left and right A-pillar inner panel assemblies, respectively. The left A-pillar inner panel module 2 and the right A-pillar inner panel module 3 are each equipped with a vertical mounting platform 12. The positioning assembly 7 and the clamping assembly 8 are respectively mounted on the two vertical mounting platforms 12 via perforated mounting plates 6, thereby providing positioning and fixing for the parts of the left and right A-pillar inner panel assemblies. Simultaneously, the left A-pillar inner panel module 2 and the right A-pillar inner panel module 3 are also slidably connected to the front engine compartment module 1. Next, when not in use, the left A-pillar inner panel module 2 and the right A-pillar inner panel module 3 can be removed and then fixed with the fastener 4 to prevent the left A-pillar inner panel module 2 and the right A-pillar inner panel module 3 from blocking the installation of other parts. When needed, the left A-pillar inner panel module 2 and the right A-pillar inner panel module 3 can be used to clamp the left and right A-pillar inner panel assemblies respectively for moving and aligning installation, saving labor and improving assembly accuracy. After moving into place, the fastener 4 can be used for fixing. The fastener 4 can be bolts, pins, clips or locks.
[0045] During the initial assembly or vehicle model change of this assembly fixture, a laser tracker is used with the calibration parts 5 at each position as coordinate references to determine the installation positions of each positioning component 7 and clamping component 8, ensuring positioning accuracy. The multi-hole mounting plate 6 is adjustable to the first horizontal mounting platform 10, the second horizontal mounting platform 11, and the vertical mounting platform 12, facilitating easy adjustment of its position, and consequently, the positions of the positioning components 7 and clamping components 8. This allows for compatibility with a wider range of vehicle models. Furthermore, the multi-hole mounting plate 6 has multiple mounting holes arranged in an array, allowing for installation at any position on a single plate surface. The positioning positions of each positioning component 7 and the clamping positions of each clamping component 8 are set according to the specific characteristics of the part. Each part has 2-4 positioning or clamping points, thereby restricting the XYZ axes of each part and achieving part positioning and fixation.
[0046] The beneficial effects of this embodiment are as follows: This assembly fixture can provide an installation benchmark for the front engine compartment and left and right A-pillar parts of the body-in-white. During the assembly process, it can fully reflect the actual positioning, welding and matching process of each part, thereby quickly identifying the fit error between parts or the rationality of the installation point. It can quickly provide feedback on the problem, improve the efficiency of part optimization, shorten the adaptation cycle of body-in-white parts, and thus quickly achieve the established quality goals, improve the efficiency of body-in-white prototyping and shorten the new car development cycle.
[0047] Example 2
[0048] This embodiment further defines the features of Embodiment 1, and its difference from Embodiment 1 lies in:
[0049] like Figure 6 and Figure 8 As shown, it also includes position adjustment components 13 respectively installed on the perforated mounting plate 6. The position adjustment components 13 include a column 1301 detachably connected to the perforated mounting plate 6, a support plate 1302 detachably connected to the column 1301, a first connecting plate 1303 detachably connected to the support plate 1302, a second connecting plate 1304 detachably connected to the first connecting plate 1303, a first adjusting piece 1305 disposed between the first connecting plate 1303 and the second connecting plate 1304, a component mounting plate 1306 detachably connected to the second connecting plate 1304, and a second adjusting piece 1307. Limiting blocks 1304a are respectively provided on the first and second sides of the second connecting plate 1304. The second adjusting pieces 1307 are respectively disposed between the limiting blocks 1304a and the sides of the component mounting plate 1306. The first and second sides are perpendicular to each other. Clamping components 8 and positioning components 7 are respectively installed on the component mounting plate 1306. Figure 1-3As shown, the clamping assembly 8 includes a perforated pin 14 connected to the porous mounting plate 6, and both the first horizontal mounting platform 10 and the second horizontal mounting platform 11 are each equipped with at least two perforated pins 14. Figure 7 As shown, the clamping assembly 8 also includes a first clamping member 15. The first clamping member 15 includes a first connecting block 1501 connected to the perforated mounting plate 6, a first abutting block 1502 connected to the first connecting block 1501, a second connecting block 1503 connected to the perforated mounting plate 6 or the first connecting block 1501, a second abutting block 1504 connected to the second connecting block 1503, and a first bolt 1505 threaded through the second abutting block 1504 and the second connecting block 1503. The first abutting block 1502 and the second abutting block 1504 are respectively provided with a contoured abutting surface. When the first bolt 1505 is tightened, the second abutting block 1504 moves toward the first abutting block 1502 and clamps the part. The first clamping member 15 also includes an adjusting block 1506 connected to the first connecting block 1501, a slider 1507 connected to the first abutting block 1502, a second bolt 1508 threadedly connected to the slider 1507, and a first elastic member 1509 whose two ends abut against the first connecting block 1501 and the second bolt 1508 respectively. The slider 1507 is slidably connected to the first connecting block 1501. The first connecting block 1501 is provided with a transverse groove 1501a. The adjusting block 1506 is slidably disposed in the transverse groove 1501a. The sliding directions of the slider 1507 and the adjusting block 1506 are perpendicular to each other. The top of the adjusting block 1506 is provided with multiple adjusting working surfaces 1506a of different heights. The slider 1507 abuts against the adjusting working surfaces 1506a under the elastic force of the first elastic member 1509. Figure 8 As shown, the clamping assembly 8 also includes a second clamping member 16. The second clamping member 16 includes a third connecting block 1601 and a fourth connecting block 1602 respectively connected to the multi-hole mounting plate 6, a third abutting block 1603 connected to the third connecting block 1601, a first connecting rod 1604 connected to the fourth connecting block 1602, a quick clamp 1605 connected to the first connecting rod 1604, and a fourth abutting block 1606 connected to the working end of the quick clamp 1605. When the quick clamp 1605 clamps, the fourth abutting block 1606 moves toward the third abutting block 1603 and clamps the part. The second clamping member 16 also includes a third bolt 1607 threadedly connected to the fourth connecting block 1602, a limiting ring 1608 slidably connected to the first connecting rod 1604, and a fourth bolt 1609 threadedly connected to the limiting ring 1608. The first connecting rod 1604 is slidably connected to the fourth connecting block 1602. The bottom of the limiting ring 1608 abuts against the top of the fourth connecting block 1602. The ends of the third bolt 1607 and the fourth bolt 1609 abut against the first connecting rod 1604 respectively.
[0050] The position adjustment component 13 is provided to further improve the adjustability of the positioning component 7 and the clamping component 8, and also to improve the positioning and clamping accuracy of the positioning component 7 and the clamping component 8. Specifically, the column 1301 plays a lifting role, and the lifting height depends on the part. For lower parts, the column 1301 can be omitted. The support plate 1302 plays a supporting role and also serves as a small mounting platform to simultaneously mount and support multiple positioning components 7 or clamping components 8. The first adjustment plate 1305 is located between the top of the first connecting plate 1303 and the bottom of the second connecting plate 1304. By increasing, decreasing, or replacing the first plate with the same or different thickness, the adjustment plate can be adjusted. Adjusting piece 1305 adjusts the height of the second connecting plate 1304. Similarly, a second adjusting piece 1307 is provided on the side of the limiting block 1304a and the second connecting plate 1304 to adjust the lateral and longitudinal positions of the second connecting plate 1304. The component mounting plate 1306 is mounted on the second connecting plate 1304, and the positioning component 7 and the clamping component 8 are mounted on the component mounting plate 1306. The positioning component 7 and the clamping component 8 can be finely adjusted in position by the first adjusting piece 1305 and the second adjusting piece 1307 to fully ensure the installation accuracy of the positioning component 7 and the clamping component 8, thereby ensuring the assembly accuracy of the body-in-white. The opening pin 14 is a retractable pin structure used in the automotive industry in the prior art. The opening pin 14 has a clamping function and is used to achieve internal clamping by using the hole when the product cannot be externally clamped on the reference surface. There are two types: with positioning hole 702a and without positioning hole 702a. In this assembly fixture, the opening pin 14 also serves as a support structure to internally clamp the hole at the bottom of the body-in-white part. Multiple pins are set to ensure the stability of support and clamping. The first clamping member 15 adopts a threaded clamping form. The first connecting block 1501 and the second connecting block 1503 both serve to connect and extend. The first abutting block 1502 and the second abutting block 1504 are working parts. The second abutting block 1504 is movably connected to the second connecting block 1503. Under the tightening adjustment of the first bolt 1505, the second abutting block 1504 approaches the first abutting block 1502 and clamps the part. The first abutting block 1502 and the second abutting block 1504 are respectively provided with a contoured abutting surface. The shape of the contoured abutting surface is set according to the contour of the part at the clamping part to increase the contact area and improve the clamping stability.The first abutment block 1502 can move relative to the first connecting block 1501 along with the slider 1507. When the slider 1507 slides towards the adjusting block 1506, it is restricted by the adjusting block 1506, that is, it abuts against the adjusting working surface 1506a of the adjusting block 1506. When the slider 1507 slides away from the adjusting block 1506, it compresses the first elastic element 1509 and is also restricted by the second bolt 1508. When the slider 1507 is not adjusted by external force, under the elastic force of the first elastic element 1509, the bottom of the slider 1507 abuts against the adjusting working surface 1506a. Therefore, by moving the position of the adjusting block 1506, the slider 1507 can abut against the adjusting working surfaces 1506a at different heights, thereby quickly adjusting the position of the first abutment block 1502 to achieve clamping of parts of different thicknesses. Furthermore, ramps are provided between the various adjusting working surfaces 1506a, so that the adjusting block 1506 can be directly pushed or pulled during adjustment.
[0051] The structure of the second clamping member 16 is similar to that of the first clamping member 15. The difference is that the second clamping member 16 uses a quick clamp 1605 for clamping. The quick clamp 1605 is a common clamping mechanism in the mechanical field. According to the clamping method, it can be divided into horizontal clamps and vertical clamps. According to the driving method, it can be divided into manual clamps or start-up clamps. The specific choice can be made according to the needs. Using the quick clamp 1605 can improve the clamping and releasing speed of the second clamping member 16, and is suitable for large space positions or long-distance clamping. The first connecting rod 1604 is slidably connected to the fourth connecting block 1602 to facilitate adjustment of the position of the first connecting rod 1604. The limiting ring 1608 is fitted on the first connecting rod 1604 and can slide relative to the first connecting rod 1604. The fourth bolt 1609 is threadedly connected to the limiting ring 1608 and passes through the limiting ring 1608 to abut against the first connecting rod 1604. Tightening the fourth bolt 1609 can fix the limiting ring 1608 on the first connecting rod 1604. The third bolt 1607 is set in a similar manner to the fourth bolt 1609. When tightened, it can fix the first connecting rod 1604 on the fourth connecting block 1602. Then, the limiting ring 1608 limits the radial movement of the first connecting rod 1604, and the third bolt 1607 fixes the first connecting rod 1604 circumferentially.
[0052] The remaining features and working principles of this embodiment are the same as those of Embodiment 1.
[0053] Example 3
[0054] Based on Example 1 or Example 2, Example 1 or Example 2 are further defined, with the following differences:
[0055] like Figure 5As shown, the positioning assembly 7 includes a fifth connecting block 701 connected to the perforated mounting plate 6, a sixth connecting block 702 connected to the fifth connecting block 701, and a positioning pin 703. The sixth connecting block 702 has a positioning hole 702a, and the positioning pin 703 is slidably connected to the positioning hole 702a. Figure 1-4 As shown, the vertical mounting platform 12 includes a lower mounting platform 1201 slidably connected to the forward engine compartment module 1, and an upper mounting platform 1202 detachably connected to the lower mounting platform 1201. Positioning markers 5 are mounted on both the lower mounting platform 1201 and the upper mounting platform 1202. Multiple casters 17 are mounted on the bottom of the underframe 9 and the back of the upper mounting platform 1202.
[0056] In the positioning assembly 7, the positioning hole 702a on the sixth connecting block 702 is opposite to the hole in the body-in-white part. The end of the positioning pin 703 passes through the part and inserts into the positioning hole 702a, thereby positioning the part. Both the left A-pillar inner panel module 2 and the right A-pillar inner panel module 3 include a vertical mounting platform 12. The vertical mounting platform 12 includes a lower mounting platform 1201 and an upper mounting platform 1202. The lower mounting platform 1201 is relatively low and can be permanently installed on the front engine compartment module 1. The upper mounting platform can be removed when not needed to avoid obstructing the installation of other parts. The bottom of the base frame 9 is equipped with casters 17, which allows the assembly fixture to move as a whole. The upper mounting platform 1202 is equipped with casters 17 on its back, which allows the upper mounting platform 1202 to be moved by the casters 17 when it is removed, making it easier and more convenient to use.
[0057] The remaining working principles and processes of this embodiment are the same as those of Embodiment 1 or Embodiment 2.
[0058] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.
[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A car frame assembly fixture, characterized in that, include: The front cabin module (1), the left A-pillar inner panel module (2) and the right A-pillar inner panel module (3) which are slidably connected to the front cabin module (1), the fixing component (4) which is connected to the left A-pillar inner panel module (2) and the right A-pillar inner panel module (3) respectively, and the position calibration component (5), the multi-hole mounting plate (6), the positioning component (7) and the clamping component (8); the front cabin module (1) includes a base frame (9), a first horizontal mounting platform (10) and a second horizontal mounting platform (11) which are respectively set on the base frame (9); the left A-pillar inner panel module (2) and the right A-pillar inner panel module (3) each include a vertical mounting platform (12) which is slidably connected to the front cabin module (1) respectively. The first horizontal mounting platform (10), the second horizontal mounting platform (11), and the vertical mounting platform (12) are each adjustablely mounted with multiple perforated mounting plates (6) and several position calibration components (5). The clamping component (8) and the positioning component (7) are respectively mounted on the perforated mounting plate (6). The first horizontal mounting platform (10) is higher than the second horizontal mounting platform (11). The fixing component (4) is used to fix the left A-pillar inner panel module (2) and the right A-pillar inner panel module (3) on the front engine compartment module (1). The positioning component (7) is used for positioning the body-in-white parts. The clamping component (8) is used for clamping the body-in-white parts.
2. The automobile frame assembly fixture according to claim 1, characterized in that: It also includes a position adjustment assembly (13) respectively installed on the perforated mounting plate (6). The position adjustment assembly (13) includes a column (1301) detachably connected to the perforated mounting plate (6), a support plate (1302) detachably connected to the column (1301), a first connecting plate (1303) detachably connected to the support plate (1302), a second connecting plate (1304) detachably connected to the first connecting plate (1303), and a first adjustment piece disposed between the first connecting plate (1303) and the second connecting plate (1304). (1305), a component mounting plate (1306) detachably connected to the second connecting plate (1304), and a second adjusting piece (1307). The second connecting plate (1304) is provided with a limiting block (1304a) on its first side and a limiting block (1304a) on its second side. The second adjusting piece (1307) is respectively disposed between the limiting block (1304a) and the side of the component mounting plate (1306). The first side and the second side are perpendicular to each other. The clamping component (8) and the positioning component (7) are respectively mounted on the component mounting plate (1306).
3. The automobile frame assembly fixture according to claim 1, characterized in that: The clamping assembly (8) includes a perforated pin (14) connected to the perforated mounting plate (6), and at least two perforated pins (14) are respectively installed on the first horizontal mounting platform (10) and the second horizontal mounting platform (11).
4. The automobile frame assembly fixture according to claim 3, characterized in that: The clamping assembly (8) further includes a first clamping member (15), which includes a first connecting block (1501) connected to the multi-hole mounting plate (6), a first abutting block (1502) connected to the first connecting block (1501), a second connecting block (1503) connected to the multi-hole mounting plate (6) or the first connecting block (1501), a second abutting block (1504) connected to the second connecting block (1503), and a first bolt (1505) threaded through the second abutting block (1504) and the second connecting block (1503). The first abutting block (1502) and the second abutting block (1504) are respectively provided with a contoured abutting surface. When the first bolt (1505) is tightened, the second abutting block (1504) moves toward the first abutting block (1502) and clamps the part.
5. The automobile frame assembly fixture according to claim 4, characterized in that: The first clamping member (15) further includes an adjusting block (1506) connected to the first connecting block (1501), a slider (1507) connected to the first abutting block (1502), a second bolt (1508) threadedly connected to the slider (1507), and a first elastic member (1509) whose two ends abut against the first connecting block (1501) and the second bolt (1508) respectively. The slider (1507) is slidably connected to the first connecting block (1501). The first connecting block (1501) is provided with a transverse groove (1501a), the adjusting block (1506) is slidably disposed in the transverse groove (1501a), the sliding block (1507) and the adjusting block (1506) are perpendicular to each other in sliding direction, the top of the adjusting block (1506) is provided with multiple adjusting working surfaces (1506a) of different heights, and the sliding block (1507) abuts against the adjusting working surface (1506a) under the elastic force of the first elastic member (1509).
6. The automobile frame assembly fixture according to claim 3, characterized in that: The clamping assembly (8) further includes a second clamping member (16), which includes a third connecting block (1601) and a fourth connecting block (1602) respectively connected to the multi-hole mounting plate (6), a third abutment block (1603) connected to the third connecting block (1601), a first connecting rod (1604) connected to the fourth connecting block (1602), a quick clamp (1605) connected to the first connecting rod (1604), and a fourth abutment block (1606) connected to the working end of the quick clamp (1605). When the quick clamp (1605) clamps, the fourth abutment block (1606) moves toward the third abutment block (1603) and clamps the part.
7. The automobile frame assembly fixture according to claim 6, characterized in that: The second clamping member (16) further includes a third bolt (1607) threadedly connected to the fourth connecting block (1602), a limiting ring (1608) slidably connected to the first connecting rod (1604), and a fourth bolt (1609) threadedly connected to the limiting ring (1608). The first connecting rod (1604) is slidably connected to the fourth connecting block (1602). The bottom of the limiting ring (1608) abuts against the top of the fourth connecting block (1602). The ends of the third bolt (1607) and the fourth bolt (1609) abut against the first connecting rod (1604) respectively.
8. The automobile frame assembly fixture according to claim 1, characterized in that: The positioning component (7) includes a fifth connecting block (701) connected to the multi-hole mounting plate (6), a sixth connecting block (702) connected to the fifth connecting block (701), and a positioning pin (703). The sixth connecting block (702) is provided with a positioning hole (702a), and the positioning pin (703) is slidably connected to the positioning hole (702a).
9. The automobile frame assembly fixture according to claim 1, characterized in that: The vertical mounting platform (12) includes a lower mounting platform (1201) slidably connected to the front cabin module (1) and an upper mounting platform (1202) detachably connected to the lower mounting platform (1201). The position calibration component (5) is installed on both the lower mounting platform (1201) and the upper mounting platform (1202).
10. A vehicle frame assembly fixture according to claim 9, characterized in that: Multiple casters (17) are installed on the bottom of the base frame (9) and the back of the upper mounting platform (1202).