A punching and milling machine for automobile back plate

Abstract

The invention discloses a punching and milling machine for automobile tailgate, which comprises a frame, a workbench is arranged on the frame, a linear guide rail is arranged on the workbench, a slide is slidably arranged on the linear guide rail, a contour positioning die for positioning the tailgate is arranged on the slide, a mounting plate is fixed above the workbench through a supporting column, a lifting cylinder facing the workbench is arranged on the mounting plate, an output rod of the lifting cylinder is connected with a punching and milling assembly, the punching and milling assembly comprises a plurality of rotating rods, each of which is provided with a synchronous pulley and linked by a synchronous belt, one of the rotating rods is driven by a stepping motor, a punching and milling cutter head is arranged at the end of each rotating rod, when the slide moves to the right below the mounting plate, it is in a punching station, the punching and milling assembly moves downward, a plurality of punching and milling cutter heads rotate and simultaneously complete multi-hole processing; when the slide moves out of the mounting plate, it is in a loading and unloading station.

Description

Technical Field

[0001] The invention relates to a vehicle trunk back plate punching device, in particular to a vehicle trunk back plate punching and milling machine. Background Art

[0002] The trunk back plate of a car needs to have many meshes formed. During processing, if a continuous die is used for punching, the mold strength cannot be met, and the waste generated during punching may pop out and damage the mold; if a single-shot die is used, it needs to be punched in batches multiple times, with many punching processes and long turnaround time, which affects production efficiency. Therefore, the existing punching process still has many problems for the processing of the trunk back plate, which needs to be further optimized. Summary of the invention

[0003] The purpose of the present invention is to provide a car tailgate punching and milling machine, which optimizes the equipment structure, improves the processing efficiency, and quickly completes the processing of multiple holes in response to the above problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A car tailgate punching and milling machine comprises a frame, a workbench is arranged on the frame, a linear guide is arranged on the workbench, a slide is slidably arranged on the linear guide, a contour positioning die for positioning the tailgate is arranged on the slide, a mounting plate is fixed above the workbench through a supporting column, a lifting cylinder facing the workbench is arranged on the mounting plate, an output rod of the lifting cylinder is connected with a punching and milling assembly, the punching and milling assembly comprises a plurality of rotating rods, each of which is provided with a synchronous pulley and linked by a synchronous belt, one of the rotating rods is driven by a stepping motor, a punching and milling cutter head is arranged at the end of each rotating rod, when the slide moves to the bottom of the mounting plate, it is in a punching station, the punching and milling assembly moves downward, and a plurality of punching and milling cutter heads rotate to simultaneously complete multi-hole processing; when the slide moves out of the mounting plate, it is in a loading and unloading station.

[0006] Among them, the punching and milling assembly also includes an upper fixed plate and a lower fixed plate arranged at intervals in the upper and lower directions. The upper fixed plate and the lower fixed plate are fixedly connected by a connecting column. Each rotating rod is arranged upright and is connected to the bearings of the two fixed plates at the same time. The synchronous pulley and the synchronous belt are located between the two fixed plates. The output rod of the lifting cylinder is fixed on the upper fixed plate, and the stepper motor is fixed on the upper surface of the upper fixed plate. A clearance opening is opened on the mounting plate corresponding to the stepper motor.

[0007] Wherein, a tension regulator is arranged on the upper surface of the lower fixed plate, and a tensioning wheel for pressing the synchronous belt is arranged on the tension regulator.

[0008] Among them, a limit column extending upward is arranged on the upper fixed plate, the limit column passes through the mounting plate and a stop block is arranged at the end thereof, which is used to limit the downward limit of the punching and milling assembly.

[0009] Wherein, the upper fixing plate and / or the lower fixing plate are provided with guide columns extending upward, and the mounting plate is provided with guide sleeves corresponding to the guide columns.

[0010] Wherein, a top pressure cylinder facing the workbench is arranged on the mounting plate, and a polyurethane positioning column acting on the surface of the backup plate is arranged at the end of the output rod of the top pressure cylinder.

[0011] Among them, a translation cylinder is arranged on the lower surface of the workbench, the output direction of the translation cylinder is parallel to the linear guide rail, the output rod of the translation cylinder is fixedly connected to the slide table through a connecting block, and a clearance groove is opened on the workbench corresponding to the stroke of the connecting block.

[0012] Among them, a buffer is arranged on the workbench. When the slide is located at the punching station, the buffer contacts the edge of the slide to form a limit and buffer.

[0013] Wherein, a protective net is arranged on the non-slide removal surface between the mounting plate and the workbench, and safety gratings are arranged on both sides of the slide removal surface.

[0014] In summary, the beneficial effects of the present invention are that, compared with the prior art, the automobile tailgate punching and milling machine synchronously drives the multi-position punching and milling cutter heads to rotate through a stepper motor to complete multi-hole rapid forming, and the mechanism operates stably, has a compact structure, high processing efficiency, good forming effect, and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a car rear panel punching and milling machine provided by an embodiment of the present invention;

[0016] Figure 2 The structure diagram of the flushing assembly in the automobile back plate punching and milling machine provided by the embodiment of the present invention is Figure 1 ;

[0017] Figure 3 The structure diagram of the flushing assembly in the automobile back plate punching and milling machine provided by the embodiment of the present invention is Figure 2 ;

[0018] Figure 4 The present invention is a side view of a flushing assembly in a car tailgate punching and milling machine provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0020] See also Figures 1 to 4As shown, this embodiment provides a car tailgate punching and milling machine, which includes a frame 1, a workbench 2 is arranged on the frame 1, a linear guide 3 is arranged on the workbench 2, a slide 4 is slidably arranged on the linear guide 3, a translation cylinder 5 is arranged on the lower surface of the workbench 2, the output direction of the translation cylinder 5 is parallel to the linear guide 3, the output rod of the translation cylinder 5 is fixedly connected to the slide 4 through a connecting block, and a clearance groove 6 is opened on the workbench 2 corresponding to the stroke of the connecting block.

[0021] The slide 4 is provided with a contour positioning die 7 for positioning the backup plate. A mounting plate 8 is fixed above the workbench 2 through a support column. The mounting plate 8 is provided with a lifting cylinder 9 facing the workbench 2. The output rod of the lifting cylinder 9 is connected with a punching and milling assembly. The lifting cylinder 9 facilitates the adjustment of the milling depth.

[0022] The punching and milling assembly includes a plurality of rotating rods 10 and an upper fixed plate 11 and a lower fixed plate 12 arranged at intervals in the upper and lower directions. The upper fixed plate 11 and the lower fixed plate 12 are fixedly connected by a connecting column. Each rotating rod 10 is arranged upright and is connected to the two fixed plate bearings at the same time. Each rotating rod 10 is provided with a synchronous pulley 13 and is linked by a synchronous belt 14. One of the rotating rods 10 is driven by a stepper motor 15, and a 86-type high-torque stepper motor 15 is preferably used as a power source. A punching and milling cutter head 16 is provided at the end of each rotating rod 10. The synchronous pulley 13 and the synchronous belt 14 are both located between the two fixed plates. The output rod of the lifting cylinder 9 is fixed on the upper fixed plate 11, and the stepper motor 15 is fixed to the upper surface of the upper fixed plate 11. A clearance opening is opened on the mounting plate 8 corresponding to the stepper motor 15.

[0023] A tension regulator 17 is provided on the upper surface of the lower fixed plate 12, and a tensioning wheel for pressing the synchronous belt 14 is provided on the tension regulator 17. An upwardly extending limit column 18 is provided on the upper fixed plate 11. The limit column 18 passes through the mounting plate 8 and a stop block is provided at the end to limit the downward limit of the punching and milling assembly.

[0024] The upper fixing plate 11 and / or the lower fixing plate 12 are provided with guide posts 19 extending upward, and the mounting plate 8 is provided with guide sleeves 20 corresponding to the guide posts 19. Preferably, four sets of graphite guide posts and sleeves are used, and the limit posts 18 are combined to enhance the milling balance synchronization.

[0025] When the slide 4 moves to the bottom of the mounting plate 8, it is in the punching station, the punching and milling assembly moves downward, and multiple punching and milling heads 16 rotate to complete multi-hole processing at the same time; when the slide 4 moves out of the mounting plate 8, it is in the loading and unloading station.

[0026] The mounting plate 8 is provided with a top pressure cylinder 21 facing the workbench 2, and the end of the output rod of the top pressure cylinder 21 is provided with a polyurethane positioning column 22 acting on the surface of the backup plate. The backup plate product is placed in the profiling positioning die 7 and sent to the punching station by the slide 4. The profiling positioning die 7 plus multi-point polyurethane positioning columns 22 press down to position, making the placement of the product safer, more convenient and more accurate.

[0027] A buffer 23 is provided on the workbench 2. When the slide 4 is located at the punching station, the buffer 23 contacts the edge of the slide 4 to form a limit and buffer, so that the slide 4 can run more smoothly for a long time.

[0028] A protective net 24 is provided on the non-slide table 4 removal surface between the mounting plate 8 and the workbench 2, and safety gratings 25 are provided on both sides of the slide table 4 removal surface to improve the safety of equipment operation.

[0029] In summary, the above-mentioned automobile tailgate punching and milling machine synchronously drives the multi-position punching and milling cutter heads to rotate through a stepper motor to complete multi-hole rapid forming, has stable mechanism operation, compact structure, high processing efficiency, good forming effect and high safety.

[0030] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A car back plate punching and milling machine, characterized in that: The machine comprises a frame, a workbench is arranged on the frame, a linear guide is arranged on the workbench, a slide is slidably arranged on the linear guide, a contour positioning die for positioning the backup plate is arranged on the slide, a mounting plate is fixed above the workbench through a supporting column, a lifting cylinder facing the workbench is arranged on the mounting plate, an output rod of the lifting cylinder is connected with a punching and milling assembly, the punching and milling assembly comprises a plurality of rotating rods, each of the rotating rods is provided with a synchronous pulley and linked by a synchronous belt, one of the rotating rods is driven by a stepping motor, a punching and milling cutter head is arranged at the end of each of the rotating rods, when the slide moves to the bottom of the mounting plate, it is in a punching station, the punching and milling assembly moves downward, and a plurality of punching and milling cutter heads rotate to simultaneously complete multi-hole processing; when the slide moves out of the mounting plate, it is in a loading and unloading station; The punching and milling assembly also includes an upper fixed plate and a lower fixed plate arranged at intervals from top to bottom, the upper fixed plate and the lower fixed plate are fixedly connected by a connecting column, each of the rotating rods is vertically arranged and simultaneously connected to the two fixed plate bearings, the synchronous pulley and the synchronous belt are both located between the two fixed plates, the output rod of the lifting cylinder is fixed to the upper fixed plate, the stepper motor is fixed to the upper surface of the upper fixed plate, and a clearance opening is opened on the mounting plate corresponding to the stepper motor; A tension regulator is arranged on the upper surface of the lower fixed plate, and a tensioning wheel for pressing the synchronous belt is arranged on the tension regulator; A translation cylinder is arranged on the lower surface of the workbench, the output direction of the translation cylinder is parallel to the linear guide rail, the output rod of the translation cylinder is fixedly connected to the slide table through a connecting block, and a clearance groove is provided on the workbench corresponding to the stroke of the connecting block.

2. The automobile tailgate punching and milling machine according to claim 1, characterized in that: The upper fixing plate is provided with a limit column extending upward, the limit column passes through the mounting plate and a stop block is provided at the end thereof for limiting the downward limit of the punching and milling assembly.

3. The automobile tailgate punching and milling machine according to claim 1, characterized in that: The upper fixing plate and / or the lower fixing plate are provided with guide columns extending upward, and the mounting plate is provided with guide sleeves corresponding to the guide columns.

4. The automobile tailgate punching and milling machine according to claim 1, characterized in that: The mounting plate is provided with a top-pressing cylinder facing the workbench, and the end of the output rod of the top-pressing cylinder is provided with a polyurethane positioning column acting on the surface of the backup plate.

5. The automobile tailgate punching and milling machine according to claim 1, characterized in that: The workbench is provided with a buffer, and when the slide is located at the punching station, the buffer contacts the edge of the slide to form a limit and buffer.

6. The automobile tailgate punching and milling machine according to claim 1, characterized in that: A protective net is arranged on the non-slide table removal surface between the mounting plate and the workbench, and safety gratings are arranged on both sides of the slide table removal surface.

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