A tooling structure for compensating for cumulative springback error during multi-process forming of automotive crossbeams.

Abstract

This utility model provides a multi-process forming springback cumulative error compensation fixture structure for automotive crossbeams, relating to the technical field of automotive crossbeam hole forming processing. It addresses the problem that single-stage stamping for hole forming easily leads to reduced stability of the automotive crossbeam, requiring manual correction or secondary processing after forming once the external force is removed, which is difficult to meet the needs of large-scale automated production. The fixture includes a load-bearing base frame, a load-bearing support, a load-bearing sleeve, a load-bearing support, and a load-bearing top seat. A reinforcing column is fixedly installed on the side of the load-bearing base frame. A rotating slot is formed on the side of the load-bearing support. The load-bearing sleeve is fixedly sleeved on the outside of the rotating column. A sliding bracket is fixedly installed on the top of the load-bearing support. An assembly side slot is formed on the side of the load-bearing top seat. When the stamped and formed automotive crossbeam moves between the compensation support and the compensation pressure seat, the compensation support and compensation pressure seat stamp and reset the automotive crossbeam that has generated errors during stamping and hole forming.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive crossbeam hole forming and processing, and more specifically, it relates to a tooling structure for compensating for cumulative error of springback during multi-process forming of automotive crossbeams. Background Technology

[0002] In the modern automotive manufacturing industry, the automotive roof beam is a key component for vehicle load-bearing and safety. Its forming accuracy plays a decisive role in the vehicle's handling performance, collision safety, and assembly quality. Automotive beams typically require multiple complex forming processes, such as deep drawing, bending, and shaping, to meet design requirements. However, during the multi-process forming process, springback is one of the main factors that makes it difficult to control forming accuracy. Springback refers to the change in size and shape of the sheet material due to elastic recovery after the removal of external force during the forming process. For large and complex structural components like automotive beams, the springback errors generated by each forming process not only affect each other but also accumulate as the process progresses, ultimately leading to a significant deviation between the actual dimensions and the design dimensions.

[0003] Based on the above, existing automotive crossbeams require a stamping and hole-making process after stamping. A single stamping operation for hole-making can easily reduce the stability of the automotive crossbeam. When the external force is removed, the automotive crossbeam will produce a large error due to elastic recovery. After forming, the workpiece needs to be manually corrected or reprocessed. However, this method is inefficient, costly, and can easily damage the surface quality of the workpiece, making it difficult to meet the needs of large-scale automated production. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a multi-process forming springback cumulative error compensation tooling structure for automotive crossbeams. This addresses the issue that after stamping, automotive crossbeams require stamping and hole-making operations. Single-stamping for hole-making can easily reduce the stability of the automotive crossbeam. When the external force is removed, the automotive crossbeam will generate significant errors due to elastic recovery. After forming, the workpiece needs to be manually corrected or subjected to secondary processing. However, this method is inefficient, costly, and easily damages the surface quality of the workpiece, making it difficult to meet the needs of large-scale automated production.

[0005] This utility model discloses a tooling structure for compensating for cumulative springback error during multi-process forming of automotive crossbeams, achieved through the following specific technical means:

[0006] A multi-process forming springback cumulative error compensation tooling structure for automobile crossbeams, the core components of which include the following parts: load-bearing bottom frame, load-bearing support, load-bearing sleeve, load-bearing support and load-bearing top support;

[0007] A reinforcing support column is fixedly installed on the side of the load-bearing base frame. An adjusting worm gear is rotatably installed on the inner side of the load-bearing base frame, and an adjusting motor is fixedly installed on the side of the load-bearing base frame. A rotating slot is opened on the side of the load-bearing support, and a rotating support column is rotatably installed on the inner side of the load-bearing support. An adjusting worm gear is fixedly sleeved on the outer side of the rotating support column, and a positioning support column is rotatably installed on the top of the rotating support column. A load-bearing sleeve is fixedly sleeved on the outer side of the rotating support column. An assembly slot is opened on the side of the load-bearing sleeve, and a load-bearing block is installed inside the assembly slot. A forming support is fixedly installed on the side of the load-bearing block, and a forming groove is opened through the side of the forming support. A sliding bracket is fixedly installed on the top of the load-bearing support, and a sliding sleeve is slidably sleeved on the outer side of the sliding bracket. An assembly side slot is opened on the side of the load-bearing top seat, and an assembly support plate is fixedly installed inside the assembly side slot. A sliding carrier is slidably installed inside the assembly support plate.

[0008] Furthermore, the top of the supporting base frame is also provided with an assembly support groove and a positioning support ring; the assembly support groove is opened at the top of the supporting base frame, and the positioning support ring is fixedly set inside the assembly support groove.

[0009] Furthermore, the inner side of the rotating slot is also provided with a rotating support ring, a bearing side column, a movable support column, and a movable wheel; the rotating support ring is rotatably sleeved on the inner side of the rotating slot, the bearing side column is fixedly set on the side of the rotating support ring, and the movable support column is fixedly set on the side of the bearing side column and the side of the forming support.

[0010] Furthermore, the top of the load-bearing support is also provided with a processing support, a compensation support, and a hydraulic support; the hydraulic support is fixedly installed on the top of the load-bearing support, and four sets of processing supports and one set of compensation supports are respectively fixedly installed on the top of five sets of hydraulic supports. The processing support and the compensation support are fixedly connected to the sliding sleeve.

[0011] Furthermore, the side of the assembly support plate is also provided with a reinforcing side column and a hydraulic support column; the reinforcing side column is fixedly installed on the top of the assembly support plate, and the hydraulic support column is fixedly installed on the side of the reinforcing side column.

[0012] Furthermore, the inner side of the sliding frame is also provided with forming pressure seats and compensating pressure seats; four sets of forming pressure seats and one set of compensating pressure seats are respectively fixedly installed at the bottom end of the five sets of sliding frames, and the forming pressure seats and compensating pressure seats are fixedly connected to the hydraulic column.

[0013] This utility model provides a tooling structure for compensating for cumulative springback error during multi-process forming of automotive crossbeams, which has the following beneficial effects:

[0014] This utility model achieves the following optimization effects by providing a load-bearing bottom frame, a load-bearing support, a load-bearing sleeve, a load-bearing support, and a load-bearing top support:

[0015] Precise positioning and stable load-bearing: By utilizing the precise fit between the forming support and the forming groove, the automotive crossbeam can be fixed and supported in all directions with high rigidity, effectively avoiding displacement and shaking during processing, providing a stable foundation for high-precision forming, and ensuring the positioning accuracy of the crossbeam in each process.

[0016] Intelligent circular processing path: The motor drives the adjusting worm gear and adjusting worm wheel to drive the rotating support to achieve flexible rotation adjustment, so that the forming support can carry the car crossbeam to move in an orderly manner along the circular path. This design breaks through the traditional linear processing mode, so that the crossbeam can reach multiple sets of processing supports and forming pressure seats in sequence and accurately, realizing continuous and automated processing of multiple processes such as stamping and opening, and greatly improving production efficiency.

[0017] Dynamic compensation for cumulative errors: When the automotive crossbeam completes the forming process such as stamping and opening, and moves between the compensation support and the compensation pressure seat, the device can accurately correct the size and shape of the crossbeam by coordinating the stamping and resetting of the compensation support and the compensation pressure seat to address the cumulative errors generated during the multi-process forming process. This effectively reduces forming errors caused by factors such as springback and significantly improves the final forming accuracy of the crossbeam.

[0018] Integrated design: The fixed load-bearing, multi-process forming and error compensation functions of the automotive crossbeam are integrated into the same tooling structure, which simplifies the production process and reduces the number of workpiece transfer links. This reduces the risk of collision damage caused by transfer and saves equipment floor space and production costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall assembly of the molding compensation tooling of this utility model;

[0020] Figure 2 This is a structural diagram showing the assembly and disassembly of the load-bearing bottom frame integral structural components of this utility model;

[0021] Figure 3 This is a structural diagram showing the assembly and disassembly of the integral structural components of the bearing support of this utility model;

[0022] Figure 4 This is a structural diagram illustrating the assembly and disassembly of the integral structural components of the bearing sleeve of this utility model;

[0023] Figure 5 This is a structural diagram illustrating the assembly and disassembly of the integral structural components of the load-bearing support of this utility model.

[0024] Figure 6 This is a structural diagram illustrating the assembly and disassembly of the integral structural components of the load-bearing top seat of this utility model.

[0025] Figure label:

[0026] 1. Supporting base frame;

[0027] 101. Assemble the support groove; 102. Position the support ring; 103. Reinforce the support column; 104. Adjust the worm gear; 105. Adjust the motor;

[0028] 2. Bearing support;

[0029] 201. Rotating slot; 202. Rotating support column; 203. Adjusting worm gear; 204. Positioning support column; 205. Rotating support ring; 206. Bearing side column; 207. Moving support column; 208. Moving wheel;

[0030] 3. Bearing sleeve;

[0031] 301. Assembly slot; 302. Bearing block; 303. Forming support; 304. Forming groove;

[0032] 4. Load-bearing supports;

[0033] 401. Sliding bracket; 402. Sliding sleeve; 403. Machining support; 404. Compensation support; 405. Hydraulic support;

[0034] 5. Supporting top seat;

[0035] 501. Assembly side groove; 502. Assembly support plate; 503. Sliding frame; 504. Reinforced side column; 505. Hydraulic support column; 506. Forming pressure seat; 507. Compensating pressure seat. Detailed Implementation

[0036] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0037] Example 1: As Figures 1 to 6 As shown, the present invention provides a multi-process forming springback cumulative error compensation tooling structure for automobile crossbeams, including a load-bearing bottom frame 1, a load-bearing support 2, a load-bearing sleeve 3, a load-bearing support 4, and a load-bearing top support 5.

[0038] A reinforcing support column 103 is fixedly installed on the side of the load-bearing base frame 1. An adjusting worm gear 104 is rotatably mounted on the inner side of the load-bearing base frame 1. An adjusting motor 105 is fixedly mounted on the side of the load-bearing base frame 1. A rotating slot 201 is opened on the side of the load-bearing support 2. A rotating support column 202 is rotatably mounted on the inner side of the load-bearing support 2. An adjusting worm gear 203 is fixedly sleeved on the outer side of the bottom end of the rotating support column 202. A positioning support column 204 is rotatably mounted on the top end of the rotating support column 202. A load-bearing sleeve 3 is fixedly sleeved on the outer side of the rotating support column 202. A mounting bracket is opened on the side of the load-bearing sleeve 3. The mounting slot 301 has a bearing block 302 installed inside it, and a forming support 303 is fixedly installed on the side of the bearing block 302. A forming groove 304 is opened through the side of the forming support 303. A sliding bracket 401 is fixedly installed on the top of the load-bearing support 4, and a sliding sleeve 402 is slidably sleeved on the outside of the sliding bracket 401. An assembly side groove 501 is opened on the side of the load-bearing top seat 5. An assembly support plate 502 is fixedly installed inside the assembly side groove 501, and a sliding carrier 503 is slidably installed inside the assembly support plate 502.

[0039] Example 2: Figures 2 to 6 As shown, the side of the assembly support plate 502 is also provided with a reinforcing side column 504 and a hydraulic support column 505; the reinforcing side column 504 is fixedly installed on the top of the assembly support plate 502, and the hydraulic support column 505 is fixedly installed on the side of the reinforcing side column 504; the inner side of the sliding frame 503 is also provided with a forming pressure seat 506 and a compensating pressure seat 507; four sets of forming pressure seats 506 and one set of compensating pressure seats 507 are respectively fixedly installed at the bottom of the five sets of sliding frames 503, and the forming pressure seats 506 and the compensating pressure seats 507 are fixedly connected to the hydraulic support column 505; the hydraulic support column 505 cooperates with the sliding frame 503 to move the forming pressure seats 506 and the compensating pressure seats 507, so that the multiple sets of forming pressure seats 506 can gradually punch and open the automobile crossbeam, and the compensating pressure seat 507 can punch and compensate for the error generated by punching and opening the automobile crossbeam.

[0040] Example 3: Figures 2 to 6As shown, the top of the load-bearing base frame 1 is also provided with an assembly support groove 101 and a positioning support ring 102; the assembly support groove 101 is opened at the top of the load-bearing base frame 1, and the positioning support ring 102 is fixedly set inside the assembly support groove 101; the inner side of the rotating slot 201 is also provided with a rotating support ring 205, a load-bearing side column 206, a movable support column 207, and a movable wheel 208; the rotating support ring 205 is rotatably sleeved inside the rotating slot 201, the load-bearing side column 206 is fixedly set on the side of the rotating support ring 205, and the movable support column 207 is fixedly set on the side of the load-bearing side column 206 and the side of the forming support 303; the top of the load-bearing support 4 is also provided with a reinforcement... The system includes a machining support 403, a compensating support 404, and a hydraulic strut 405. The hydraulic strut 405 is fixedly installed on the top of the load-bearing support 4. Four sets of machining supports 403 and one set of compensating supports 404 are respectively fixedly installed on the top of the five sets of hydraulic struts 405. The machining supports 403 and compensating supports 404 are fixedly connected to the sliding sleeve 402. The hydraulic struts 405 can position and lift the machining supports 403 and compensating supports 404, so that the machining supports 403 can provide positioning support for the stamping and opening of the automobile crossbeam, and the compensating supports 404 can provide positioning support for the stamping and opening of the automobile crossbeam.

[0041] The specific usage and function of this embodiment are as follows: In use, the forming support 303, in conjunction with the forming groove 304, fixes and supports the automobile crossbeam that needs to be formed. The adjusting motor 105 drives the adjusting worm gear 104, in conjunction with the adjusting worm wheel 203, to rotate and support the rotating support column 202 as a whole, so that the rotating support column 202, in conjunction with the forming support 303, supports the automobile crossbeam that needs to be formed to move in a circular path. The forming support 303 supports the automobile crossbeam and alternately sets it between multiple sets of processing supports 403 and forming pressure seats 506, so that the automobile crossbeam is gradually punched and opened through the cooperation of multiple sets of processing supports 403 and forming pressure seats 506. When the stamped and opened automobile crossbeam moves between the compensating support 404 and the compensating pressure seat 507, the compensating support 404 and the compensating pressure seat 507 punch and reset the automobile crossbeam with errors caused by the stamping and opening.

Claims

1. A tooling structure for compensating for cumulative error of springback during multi-process forming of an automobile crossbeam, mainly comprising the following components: a load-bearing bottom frame (1), a load-bearing support (2), a load-bearing sleeve (3), a load-bearing support (4), and a load-bearing top support (5); A reinforcing support column (103) is fixedly installed on the side of the bearing base frame (1), an adjusting worm gear (104) is rotatably arranged on the inner side of the bearing base frame (1), and an adjusting motor (105) is fixedly installed on the side of the bearing base frame (1); characterized in that, The bearing support (2) has a rotating slot (201) on its side, and a rotating support column (202) is rotatably mounted on the inner side of the bearing support (2). An adjusting worm gear (203) is fixedly sleeved on the outer side of the bottom end of the rotating support column (202), and a positioning support column (204) is rotatably mounted on the top end of the rotating support column (202). The bearing sleeve (3) is fixedly sleeved on the outer side of the rotating support column (202), and an assembly slot (301) is opened on the side of the bearing sleeve (3). A bearing block (302) is installed inside the assembly slot (301). A forming support (303) is fixedly installed on the side of the block (302), and a forming groove (304) is opened through the side of the forming support (303); a sliding bracket (401) is fixedly installed on the top of the load-bearing support (4), and a sliding sleeve (402) is slidably sleeved on the outside of the sliding bracket (401); an assembly side groove (501) is opened on the side of the load-bearing top seat (5), an assembly support plate (502) is fixedly installed on the inside of the assembly side groove (501), and a sliding carrier (503) is slidably installed on the inside of the assembly support plate (502).

2. The tooling structure for compensating for cumulative springback error in multi-process forming of automotive crossbeams according to claim 1, characterized in that, The top of the bearing base frame (1) is also provided with an assembly support groove (101) and a positioning support ring (102); the assembly support groove (101) is opened at the top of the bearing base frame (1), and the positioning support ring (102) is fixedly set inside the assembly support groove (101).

3. The tooling structure for compensating for cumulative springback error in multi-process forming of automotive crossbeams according to claim 1, characterized in that, The inner side of the rotating slot (201) is also provided with a rotating support ring (205), a bearing side column (206), a movable support column (207) and a movable wheel (208); the rotating support ring (205) is rotatably sleeved on the inner side of the rotating slot (201), the bearing side column (206) is fixedly set on the side of the rotating support ring (205), and the movable support column (207) is fixedly set on the side of the bearing side column (206) and the forming support (303).

4. The tooling structure for compensating for cumulative springback error in multi-process forming of automotive crossbeams according to claim 1, characterized in that, The top of the load-bearing support (4) is also provided with a processing support (403), a compensation support (404) and a hydraulic support (405); the hydraulic support (405) is fixedly installed on the top of the load-bearing support (4), and four sets of processing supports (403) and one set of compensation supports (404) are respectively fixedly installed on the top of the five sets of hydraulic supports (405). The processing support (403) and the compensation support (404) are fixedly connected to the sliding sleeve (402).

5. The tooling structure for compensating for cumulative springback error in multi-process forming of automotive crossbeams according to claim 1, characterized in that, The assembly support plate (502) is also provided with a reinforcing side column (504) and a hydraulic support column (505) on its side; the reinforcing side column (504) is fixedly installed on the top of the assembly support plate (502), and the hydraulic support column (505) is fixedly installed on the side of the reinforcing side column (504).

6. The tooling structure for compensating for cumulative springback error in multi-process forming of automotive crossbeams according to claim 1, characterized in that, The inner side of the sliding frame (503) is also provided with a forming pressure seat (506) and a compensating pressure seat (507); four sets of forming pressure seats (506) and one set of compensating pressure seats (507) are respectively fixedly installed at the bottom of the five sets of sliding frames (503), and the forming pressure seat (506) and the compensating pressure seat (507) are fixedly connected to the hydraulic column (505).

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