A punching system for the lower plate of the cross beam in the subframe

Abstract

The present invention relates to the field of automobile processing and stamping, and specifically to a punching system for the lower plate of the middle cross beam of a subframe. By integrating multiple processes such as punching, trimming, bending, and forming into one system, the intermediate transfer links are reduced and the entire production process is optimized. By reasonably arranging various functional modules, such as setting a punch, a punching punch, a trimming punch, and a separation punch on the punching upper template, and setting corresponding concave dies at the corresponding positions of the punching lower template, a single punching mechanism can undertake a variety of processing tasks, reducing the complexity and manufacturing cost of the mold. By equipping the feeding positioning module with a photoelectric sensor and a PLC control system, the position of the edge of the stamping plate is monitored in real time, and the position of the support frame is accurately adjusted by a servo motor to ensure that the stamping plate fed in each time can be accurately placed in the predetermined position, greatly improving the dimensional accuracy of the product. The problems existing in the punching system for the lower plate of the middle cross beam of a subframe in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile processing and stamping, in particular to a stamping system for a lower plate of a cross beam in a sub-frame. Background Art

[0002] In recent years, there are many schemes for the stamping process design and die structure design of the subframe center cross beam lower plate. The quality and precision of the stamped parts stamped out by each stamping system are different, the material utilization rate is also different, and the life of the die is also different. The existing technology has the disadvantages of unreasonable process design, complex die structure, multiple die processes, poor quality of stamped parts, and low precision. Summary of the invention

[0003] The invention aims to solve the problems of unreasonable process design, complex die structure, multiple die processes, poor quality of stamped parts and low precision in the prior art of the punching system of the lower plate of the cross beam in the subframe.

[0004] The present invention provides a punching system for the lower plate of the middle cross beam of a sub-frame, comprising a punching mechanism, a trimming mechanism, a bending mechanism, a forming mechanism and a feeding and positioning module; the punching mechanism comprises a punching upper die and a punching lower die, the punching upper die comprises a punching upper template and a punching press plate, the punching lower die comprises a punching lower template and a punching floating material block, the punching upper template is provided with a punch, a punching convex die, a trimming convex die, a first separating convex die and a second separating convex die, and the punching lower template is provided with a punch concave die corresponding to the punch The trimming mechanism comprises an upper trimming die and a lower trimming die, the upper trimming die comprises an upper trimming die plate and a trimming pressing plate, the lower trimming die comprises a lower trimming die plate, a lower trimming pad, a trimming floating plate and a nitrogen spring, and the upper trimming die plate is provided with a slider mechanism for lateral trimming; the bending mechanism comprises a The invention comprises a bending upper die and a bending lower die, wherein the bending upper die comprises a bending upper die plate and a bending pressure plate, the bending lower die comprises a bending lower die plate, a bending lower pad and a bending floating plate, and a nitrogen spring, the bending upper die plate is provided with a drawing die, and the bending lower die plate is provided with a drawing convex die corresponding to the drawing die; the forming mechanism comprises a forming upper die plate and a forming lower die plate, the forming upper die plate comprises a forming upper die plate, the forming lower die plate comprises a forming lower die plate, a forming lower pad and a forming floating block, the forming upper die plate is provided with a forming die, and the forming lower die plate is provided with a forming convex die corresponding to the forming die; the feeding positioning module comprises a detection unit and a control unit, the detection unit comprises a photoelectric sensor, the electric sensor is used to monitor the edge position of the stamping sheet in real time and feed it back to the control unit, the control unit comprises a PLC electrically connected to the photoelectric sensor, and the control unit controls the servo motor to drive the support frame for placing the stamping sheet plate to adjust the position synchronously while receiving the information from the photoelectric sensor.

[0005] Preferably, there are two punches, two punching punches, two trimming punches and two first separation punches, and they are all symmetrically arranged along the central axis of the punching upper template, and the second separation punch is located on the central axis of the upper template.

[0006] Preferably, the punching lower template is provided with a punch through hole corresponding to the punch die, a punching die through hole corresponding to the punching die, a trimming die through hole corresponding to the trimming die, a first separation die through hole corresponding to the first separation die, and a second separation die through hole corresponding to the second separation die; the punching lower die also includes a first material guide trough, a second material guide trough and a third material guide trough for guiding out stamping waste.

[0007] Preferably, the punching lower die also includes an error detection component, which is used to detect whether the stamping sheet is conveyed accurately, and control the stamping system to start and stop stamping accordingly.

[0008] The present invention integrates multiple processes such as punching, trimming, bending, and forming into one system, thereby reducing the intermediate transfer links and optimizing the entire production process. By rationally arranging various functional modules, such as setting a punch, a punching punch, a trimming punch, and a separation punch on the punching upper template, and setting corresponding concave dies at corresponding positions of the punching lower template, a single punching mechanism can undertake a variety of processing tasks, reducing the complexity and manufacturing cost of the mold. By equipping the feeding positioning module with a photoelectric sensor and a PLC control system, the position of the edge of the stamping plate is monitored in real time, and the position of the support frame is accurately adjusted by a servo motor to ensure that the stamping plate fed in each time can be accurately placed in the predetermined position, greatly improving the dimensional accuracy of the product. The present invention solves the problems of unreasonable process design, complex mold structure, multiple mold processes, poor quality of stamped parts, and low precision in the prior art of the stamping system of the lower plate of the crossbeam in the subframe. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a three-dimensional diagram of the punching mechanism provided by the present invention.

[0010] Figure 2 This is a cross-sectional view of the punching mechanism provided by the present invention.

[0011] Figure 3 The top view of the punching upper die provided by the present invention.

[0012] Figure 4 This is a bottom view of the punching lower die provided by the present invention.

[0013] Figure 5 This is a top view of the punching lower template provided by the present invention.

[0014] Figure 6 The figure is a three-dimensional diagram of the trimming machine provided by the present invention.

[0015] Figure 7 The figure is a three-dimensional diagram of the trimming upper die provided by the present invention.

[0016] Figure 8 The present invention is a three-dimensional diagram of the trimming lower die provided by the present invention.

[0017] Fig. 9 This is a three-dimensional diagram of the bending mechanism provided by the present invention.

[0018] Fig.10 The figure is a three-dimensional diagram of the bending upper die provided by the present invention.

[0019] Fig.11 The figure is a three-dimensional diagram of the bending lower die provided by the present invention.

[0020] Fig.12 This is a three-dimensional diagram of the molding mechanism provided by the present invention.

[0021] Fig.13 The figure is a three-dimensional diagram of the molding upper mold provided by the present invention.

[0022] Fig.14 The figure is a three-dimensional diagram of the lower molding die provided by the present invention.

[0023] In the figure: 1-punching mechanism; 11-punching upper die; 111-punching upper template; 1111-punch; 1112-punching punch; 1113-trimming punch; 1114-first separation punch; 1115-second separation punch; 112-punching pressing plate; 12-punching lower die; 121-punching lower template; 1210-punch die; 1211-punching die; 1212-trimming die; 1213-first separation die; 1214-second separation die; 1215-punch through hole; 1216-punching die through hole; 1217-trimming die through hole; 1218-first separation die through hole; 1219-second separation die through hole; 122-punching floating block; 123-error detection component; 124-first material guide trough; 125-second material guide trough; 126- The third material guide trough; 2-trimming mechanism; 21-trimming upper die; 211-trimming upper template; 2111-slider mechanism; 212-trimming pressure plate; 22-trimming lower die; 221-trimming lower template; 222-trimming lower pad; 223-trimming floating plate; 3-bending mechanism; 31-bending upper die; 311-bending upper template; 3111-drawing die; 312-bending pressure plate; 32-bending lower die; 321-bending lower template; 3211-drawing punch; 322-bending lower pad; 323-bending floating plate; 4-forming mechanism; 41-forming upper die; 411-forming upper template; 4111-forming die; 42-forming lower die; 421-forming lower template; 4211-forming punch; 422-forming lower pad; 423-forming floating block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] Reference Figure 1-Figure 14A punching system for a lower plate of a middle cross beam of a subframe includes a punching mechanism 1, a trimming mechanism 2, a bending mechanism 3, a forming mechanism 4 and a feeding and positioning module; the punching mechanism 1 includes a punching upper die 11 and a punching lower die 12, the punching upper die 11 includes a punching upper template 111 and a punching press plate 112, the punching lower die 12 includes a punching lower template 121 and a punching floating block 122, the punching upper template 111 is provided with a punch 1111, a punching punch 1112, a trimming punch 1113, a first separation punch 1114 and a second separation punch 1115, and the punching lower template 121 is provided with a punch corresponding to the punch 1111 The head die 1210, the punching die 1211 corresponding to the punching punch 1112, the trimming die 1212 corresponding to the trimming punch 1113, the first separation die 1213 corresponding to the first separation die 1114, and the second separation die 1214 corresponding to the second separation die 1115; the trimming mechanism 2 includes a trimming upper die 21 and a trimming lower die 22, the trimming upper die 21 includes a trimming upper template 211, a trimming pressure plate 212, the trimming lower die 22 includes a trimming lower template 221, a trimming lower pad 222, a trimming floating plate 223 and a nitrogen spring, and the trimming upper template 211 is provided with a The slider mechanism 2111 for lateral trimming; the bending mechanism 3 includes a bending upper die 31 and a bending lower die 32, the bending upper die 31 includes a bending upper template 311, a bending pressure plate 312, the bending lower die 32 includes a bending lower template 321, a bending lower pad 322 and a bending floating plate 323, and a nitrogen spring, the bending upper template 311 is provided with a drawing die 3111, and the bending lower template 321 is provided with a drawing punch 3211 corresponding to the drawing die 3111; the forming mechanism 4 includes a forming upper die 41 and a forming lower die 42, the forming upper die 41 includes a forming upper template 411, and the forming lower die 42 includes a forming lower The template 421, the lower molding foot 422 and the molding float block 423, the upper molding template 411 is provided with a molding die 4111, and the lower molding template 421 is provided with a molding convex die 4211 corresponding to the molding die 4111; the feeding positioning module includes a detection unit and a control unit, the detection unit includes a photoelectric sensor, the electrical sensor is used to monitor the edge position of the stamping plate in real time and feed it back to the control unit, the control unit includes a PLC electrically connected to the photoelectric sensor, and the control unit controls the servo motor to drive the support frame for placing the stamping plate to adjust the position synchronously while receiving the information from the photoelectric sensor.

[0026] By integrating multiple processes such as punching, trimming, bending, and forming into one system, the intermediate transfer links are reduced and the entire production process is optimized. By reasonably arranging various functional modules, such as setting a punch 1111, a punching punch 1112, a trimming punch 1113, and a separation punch on the punching upper template 111, and setting corresponding concave molds at corresponding positions of the punching lower template 121, a single punching mechanism 1 can undertake a variety of processing tasks, reducing the complexity and manufacturing cost of the mold. By equipping the feeding positioning module with a photoelectric sensor and a PLC control system, the position of the edge of the stamping plate is monitored in real time, and the position of the support frame is accurately adjusted by a servo motor to ensure that each stamping plate fed in can be accurately placed in the predetermined position, greatly improving the dimensional accuracy of the product. The problem of unreasonable process design, complex mold structure, multiple mold processes, poor quality of stamped parts, and low precision in the prior art of the punching system of the lower plate of the crossbeam in the subframe is solved.

[0027] In some embodiments, reference Figure 3 There are two punches 1111, punching punches 1112, trimming punches 1113 and first separation punches 1114, and they are symmetrically arranged along the central axis of the punching upper template 111. The second separation punch 1115 is located on the central axis of the upper template.

[0028] By symmetrically distributing the punch 1111, the punching punch 1112, the trimming punch 1113 and the first separation punch 1114 on both sides of the punching upper template 111, it is ensured that the force applied to the material during the processing is evenly distributed. This symmetry helps to reduce the deformation or displacement of the product caused by the imbalance of force, thereby improving the processing accuracy. By using two identical punches 1111, the punching punch 1112, the trimming punch 1113 and the first separation punch 1114 at the same time, two punching, two trimming and two separation cutting actions can be completed in one stroke, thereby speeding up the production speed.

[0029] In some embodiments, reference Figure 5 The punching lower template 121 is provided with a punch through hole 1215 corresponding to the punch die 1210, a punching die through hole 1216 corresponding to the punching die 1211, a trimming die through hole 1217 corresponding to the trimming die 1212, a first separation die through hole 1218 corresponding to the first separation die 1213, and a second separation die through hole 1219 corresponding to the second separation die 1214; refer to Figure 1-2 The punching lower die 12 also includes a first material guide groove 124, a second material guide groove 125 and a third material guide groove 126 for guiding out the punching waste.

[0030] By setting the punch through hole 1215, the punching die through hole 1216, the trimming die through hole 1217, the first separation die through hole 1218 and the second separation die through hole 1219, waste discharge outlets are provided for the punch die 1210, the punching die 1211, the trimming die 1212, the first separation die 1213 and the second separation die 1214, respectively, to ensure that the waste punched out during each processing can be accurately discharged from the corresponding through hole, to prevent the waste from clogging in the die and affecting the processing process. The first guide groove 124, the second guide groove 125 and the third guide groove 126 are oriented in different directions, respectively, to guide the waste generated during the stamping process to be smoothly discharged from the outside of the die, to prevent the waste from accumulating and affecting subsequent processing or damaging the equipment.

[0031] In some embodiments, reference Figure 1 and 3 The punching lower die 12 also includes an error detection component 123, which is used to detect whether the punching sheet is conveyed accurately, and control the punching system to start and stop punching accordingly.

[0032] The error detection component 123 can monitor the position of the stamping sheet in real time to ensure that the material is in the correct position before each processing. If the sheet is not delivered in the predetermined manner, the system will not start the stamping action, thereby avoiding defective products caused by position deviation.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching system for the lower plate of the cross beam in a subframe, characterized in that: include: The punching mechanism comprises a punching upper die and a punching lower die, wherein the punching upper die comprises a punching upper template and a punching press plate, the punching lower die comprises a punching lower template and a punching floating material block, the punching upper template is provided with a punch, a punching punch, a trimming punch, a first separation punch and a second separation punch, and the punching lower template is provided with a punch die corresponding to the punch, a punching die corresponding to the punching punch, a trimming die corresponding to the trimming punch, a first separation die corresponding to the first separation die, and a second separation die corresponding to the second separation die; The trimming mechanism comprises an upper trimming die and a lower trimming die. The upper trimming die comprises an upper trimming die plate and a trimming press plate. The lower trimming die comprises a lower trimming die plate, a lower trimming pad, a trimming floating plate and a nitrogen spring. The upper trimming die plate is provided with a slider mechanism for lateral trimming. The bending mechanism comprises a bending upper die and a bending lower die, wherein the bending upper die comprises a bending upper die plate and a bending pressing plate, and the bending lower die comprises a bending lower die plate, a bending lower pad, a bending floating plate, and a nitrogen spring. The bending upper die plate is provided with a drawing die, and the bending lower die plate is provided with a drawing punch corresponding to the drawing die; The forming mechanism comprises an upper forming die and a lower forming die, wherein the upper forming die comprises an upper forming die plate, the lower forming die comprises a lower forming die plate, a lower forming pad and a forming floating material block, the upper forming die plate is provided with a forming concave die, and the lower forming die plate is provided with a forming convex die corresponding to the forming concave die; The feeding positioning module includes a detection unit and a control unit. The detection unit includes a photoelectric sensor. The electrical sensor is used to monitor the edge position of the stamping sheet in real time and feed it back to the control unit. The control unit includes a PLC electrically connected to the photoelectric sensor. When the control unit receives information from the photoelectric sensor, it controls the servo motor to drive the support frame for placing the stamping sheet to adjust the position synchronously.

2. A subframe middle crossbeam lower plate stamping system according to claim 1, characterized in that: The punch, the punching punch, the trimming punch and the first separation punch are each provided with two, and are all symmetrically arranged along the central axis of the punching upper template, and the second separation punch is located on the central axis of the upper template.

3. The punching system for the lower plate of the middle cross beam of a subframe according to claim 1, characterized in that: The punching lower template is provided with a punch through hole corresponding to the punch die, a punching die through hole corresponding to the punching die, a trimming die through hole corresponding to the trimming die, a first separation die through hole corresponding to the first separation die, and a second separation die through hole corresponding to the second separation die; the punching lower die also includes a first material guide trough, a second material guide trough and a third material guide trough for guiding out stamping waste.

4. The punching system for the lower plate of the middle cross beam of a subframe according to claim 1, characterized in that: The punching lower die also includes an error detection component, which is used to detect whether the punching sheet is conveyed accurately, and control the punching system to start and stop punching accordingly.

Images