Double-end automatic chamfering machine for automobile seat pipe

Abstract

The invention relates to the technical field of machining, in particular to a double-end automatic chamfering machine for an automobile seat tube, which comprises a rack, a chamfering mechanism and a chamfering mechanism, the feeding assembly comprises a feeding table, a fixing mechanism and a moving mechanism; the chamfering assembly comprises a driving mechanism, a transmission mechanism, a power head, a clamping mechanism and a chamfering cutter; the recycling assembly comprises a tensioning mechanism, an air pressure reinforcing structure and a cleaning mechanism; the vibration energy recovery assembly converts vibration energy, and the converted energy is used for driving the tensioning mechanism to dynamically adjust the tensioning force of the transmission mechanism and driving the air pressure reinforcing mechanism to dynamically enhance workpiece fixation during machining; when the air pressure reinforcing mechanism relieves pressure, compressed air obtained after pressure relief is used for driving the cleaning mechanism, and scraps on the feeding table are automatically removed; the vibration energy is recycled and secondarily distributed, so that multiple functions of tensioning adjustment, workpiece reinforcement, automatic cleaning and the like are realized.

Description

Technical Field

[0001] The invention relates to the technical field of machining, in particular to a double-head automatic chamfering machine for automobile seat tubes. Background Art

[0002] The car seat frame is the load-bearing structure of the entire vehicle. Its connecting tubes (such as the seat front and rear adjustment tubes, backrest connecting tubes, etc.) are mostly stamped or welded steel pipes. The ends need to be chamfered to meet assembly accuracy, safety (to avoid scratches from sharp edges) and appearance requirements.

[0003] Existing chamfering of automobile seat tube fittings mainly relies on single-head chamfering machines to process both ends in two steps. During processing, there are problems such as large positioning errors, low efficiency, and poor consistency. At the same time, the chamfering process also causes changes in the tension of the transmission mechanism and vibration or displacement of the workpiece, affecting the processing accuracy and tool life. In addition, the debris generated by cutting cannot be cleaned in time. Summary of the Invention

[0004] The object of the present invention is to provide a double-head automatic chamfering machine for automobile seat tubes to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] Double-head automatic chamfering machine for car seat tubes, including:

[0007] A frame, wherein the frame is provided with a movable track;

[0008] A loading assembly, the loading assembly comprising a loading platform, a fixing mechanism and a moving mechanism, the fixing mechanism being used to fix the seat tube to the loading platform, and the moving mechanism being used to drive the loading platform to move along the moving track;

[0009] A chamfering assembly, comprising a driving mechanism, a transmission mechanism, a power head, a clamping mechanism, and a chamfering cutter, wherein the transmission mechanism is used to transmit the power of the driving mechanism to the power head, the clamping mechanism is provided on the power head, and the clamping mechanism is used to clamp and fix the chamfering cutter to the power head;

[0010] A vibration energy recovery component, the vibration energy recovery component is used to recover the vibration energy generated during chamfering and convert it;

[0011] Recycling component, the recycling component includes a tensioning mechanism, a pneumatic reinforcement structure and a cleaning mechanism, the tensioning mechanism is used to use the energy converted by the vibration energy recovery component to adjust the tensioning force of the transmission mechanism, the pneumatic reinforcement mechanism is used to use the energy converted by the vibration energy recovery component to reinforce the seat tube during processing, and the cleaning mechanism is used to use the air when the pneumatic reinforcement mechanism is depressurized to clean the loading platform.

[0012] Preferably, the fixing mechanism includes a fixing push rod and a fixing block, the fixing push rod is arranged on the loading platform, and the fixing push rod is used to drive the fixing block to fix the automobile seat tube.

[0013] Preferably, the moving mechanism includes a fixed platform, a moving push rod and a guide rod, the fixed platform is arranged on one side of the moving guide rail, the moving push rod is arranged on the fixed platform, one end of the moving push rod is connected to the loading platform, the guide rod is symmetrically arranged on the fixed platform, the loading platform is provided with a guide hole, and the guide rod is symmetrically inserted into the guide hole.

[0014] Preferably, the driving mechanism includes a mounting platform, a sliding cylinder and a driving motor, the mounting platform is movably connected to the frame, the sliding cylinder is used to drive the mounting platform to move, the transmission mechanism includes a transmission belt, the driving motor is arranged on the mounting platform, the power head is rotatably connected to the mounting platform, and the transmission belt is used to connect the output end of the driving motor and the power head to each other.

[0015] Preferably, the clamping mechanism includes a spring clip and a clamping knob, the spring clip is arranged on the power head, the clamping knob is connected to the power head by a thread, and the clamping knob is sleeved on the spring clip. By rotating the clamping knob, the clamping force of the spring clip on the chamfering tool can be adjusted.

[0016] Preferably, the vibration energy recovery component includes a shock-absorbing block, an energy storage piston, a return spring, a piston cylinder, an air tank, a trigger block, a piezoelectric ceramic and a battery. The shock-absorbing block is arranged on the fixed block, the shock-absorbing block is connected to the energy storage piston, the energy storage piston is movably connected to the piston cylinder, and the two ends of the return spring are respectively connected to the energy storage piston and the piston cylinder. When the energy storage piston reciprocates in the piston cylinder, the air is compressed into the air tank. The trigger block is arranged at the movable end of the energy storage piston. When the trigger block presses the piezoelectric ceramic, the piezoelectric ceramic will generate electrical energy and store it in the battery.

[0017] Preferably, the tensioning mechanism includes a mounting plate, a pressure sensor, an air intake valve 1 and a pneumatic push rod, the mounting plate is arranged on the mounting platform, the mounting plate is installed with a driving motor, the two ends of the pneumatic push rod are respectively connected to the mounting plate and the mounting platform, the pressure sensor is arranged at the connection between the pneumatic push rod and the mounting plate, the air intake valve 1 is arranged at the air inlet of the pneumatic push rod, and the air intake valve 1 and the gas tank are connected to each other through a pipeline.

[0018] Preferably, the air pressure reinforcement structure includes an air intake valve 2 and an air bag, the air bag is arranged on the fixed block, the air intake valve 2 is arranged at the air inlet of the air bag, and the air intake valve 2 and the air tank are connected to each other.

[0019] Preferably, the cleaning mechanism includes a pressure relief valve, which is provided on the fixed block and is connected to the airbag via a pipeline.

[0020] Compared with the prior art, the present invention has the following beneficial effects: Through the coordination of a movable track, a fixing mechanism, and a movable mechanism, the present invention achieves automated, high-precision loading of seat tubes, significantly improving loading efficiency and positioning consistency, reducing manual operations and enhancing production efficiency and stability. The vibration energy recovery component converts vibration energy, using the converted energy to drive a tensioning mechanism to dynamically adjust the tension of the transmission mechanism and a pneumatic reinforcement mechanism to dynamically enhance workpiece fixation during processing. When the pneumatic reinforcement mechanism is depressurized, the released compressed air is used to drive a cleaning mechanism to automatically remove debris from the loading platform, reducing downtime for maintenance and maintaining a clean working environment. The present invention combines a vibration energy recovery component with a reuse component to form a "vibration generation-vibration conversion-vibration utilization" vibration energy recovery system. Furthermore, through secondary energy distribution, multiple functions such as tension adjustment, workpiece reinforcement, and automatic cleaning are achieved, resulting in a highly practical system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the mounting platform and drive motor position structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the position structure of the mounting plate and the pneumatic push rod of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection structure of the power head, chamfering cutter, spring clamp and clamping knob of the present invention;

[0026] Figure 6 For the pressure sensor, the intake valve one and the pneumatic push rod position structure schematic diagram of the application;

[0027] Figure 7 For the loading table and the fixed push rod connection structure schematic diagram of the application;

[0028] Figure 8 For the piston cylinder, the gas tank and the battery connection structure schematic diagram of the application;

[0029] Figure 9 For the fixed block, the intake valve two, the air bag and the pressure relief valve position structure schematic diagram of the application;

[0030] Figure 10 For the fixed block, the damping block and the piston cylinder position structure schematic diagram of the application;

[0031] Figure 11 For the piston cylinder internal structure schematic diagram of the application.

[0032] In the figure: 1 frame, 2 moving track, 3 loading table, 4 power head, 5 chamfering cutter, 6 fixed push rod, 7 fixed block, 8 fixed table, 9 moving push rod, 10 guide rod, 11 installation table, 12 sliding oil cylinder, 13 drive motor, 14 spring clamp, 15 clamping knob, 16 damping block, 17 energy storage piston, 18 return spring, 19 piston cylinder, 20 gas tank, 21 trigger block, 22 piezoelectric ceramic, 23 battery, 24 mounting plate, 25 pressure sensor, 26 intake valve one, 27 pneumatic push rod, 28 intake valve two, 29 air bag, 30 pressure relief valve, 1301 transmission belt. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the application.

[0034] Please refer to Figure 1-11 , the application provides a technical solution:

[0035] The double-head automatic chamfering machine for automobile seat pipes comprises: Figure 1 as shown in the description, including:

[0036] The frame 1 is provided with a moving track 2, which is used to limit the movement direction of the loading table 3, so that the loading table 3 can only move along the direction of the moving track 2;

[0037] The loading assembly includes a loading platform 3, a fixing mechanism and a moving mechanism. The fixing mechanism is used to fix the seat tube to the loading platform 3, and the moving mechanism is used to drive the loading platform 3 to move along the moving track 2;

[0038] The chamfering assembly includes a driving mechanism, a transmission mechanism, a power head 4, a clamping mechanism and a chamfering knife 5. The transmission mechanism is used to transmit the power of the driving mechanism to the power head 4. The power head 4 is used to install the chamfering knife 5. The clamping mechanism is provided on the power head 4 and is used to clamp and fix the chamfering knife 5 to the power head 4.

[0039] A vibration energy recovery component is used to recover the vibration energy generated during chamfering and convert it;

[0040] Recycling components, the recycling components include a tensioning mechanism, a pneumatic reinforcement structure and a cleaning mechanism. The tensioning mechanism is used to use the energy converted by the vibration energy recovery component to adjust the tensioning force of the transmission mechanism. The pneumatic reinforcement mechanism is used to use the energy converted by the vibration energy recovery component to reinforce the seat tube during processing. The cleaning mechanism is used to use the air when the pneumatic reinforcement mechanism is depressurized to clean the loading table 3.

[0041] The fixing mechanism includes a fixed push rod 6 and a fixed block 7. The fixed push rod 6 is a hydraulic push rod. The fixed push rod 6 is arranged on the loading platform 3. There are two fixed blocks 7, one of which is fixedly connected to the moving end of the fixed push rod 6, and the other fixed block 7 is fixedly connected to the loading platform 3. The fixed push rod 6 is used to drive the fixed block 7 to fix the car seat tube.

[0042] The moving mechanism includes a fixed platform 8, a moving push rod 9 and a guide rod 10. The fixed platform 8 is arranged on one side of the moving guide rail. The fixed platform 8 is used to install the moving push rod 9. The moving push rod 9 is a hydraulic push rod. The moving push rod 9 is used to drive the loading platform 3 to move along the moving track 2. The moving push rod 9 is arranged on the fixed platform 8. One end of the moving push rod 9 is connected to the loading platform 3. The guide rod 10 is symmetrically arranged on both sides of the fixed platform 8. The loading platform 3 is provided with a guide hole. The guide hole is used to limit the movement direction of the guide rod 10. The guide rod 10 is symmetrically inserted in the guide hole. The guide rod 10 is used to cooperate with the guide hole to reduce vibration and deviation of the loading platform 3 during movement.

[0043] The driving mechanism includes a mounting platform 11, a sliding cylinder 12 and a driving motor 13. The driving mechanism is symmetrically arranged on both sides of the frame 1. The mounting platform 11 is movably connected to the frame 1. The sliding cylinder 12 is used to drive the mounting platform 11 to move. The transmission mechanism includes a transmission belt 1301. The driving motor 13 is arranged on the mounting platform 11. The power head 4 is rotatably connected to the mounting platform 11. The transmission belt 1301 is used to connect the output end of the driving motor 13 and the power head 4 to each other.

[0044] The clamping mechanism includes a spring clip 14 and a clamping knob 15. The spring clip 14 is arranged on the side of the power head 4 away from the transmission belt 1301. The clamping knob 15 is connected to the power head 4 through a thread. The clamping knob 15 is sleeved on the spring clip 14. By rotating the clamping knob 15, the clamping force of the spring clip 14 on the chamfering knife 5 can be adjusted.

[0045] The vibration energy recovery component includes a shock-absorbing block 16, an energy storage piston 17, a return spring 18, a piston cylinder 19, a gas tank 20, a trigger block 21, a piezoelectric ceramic 22 and a battery 23. The shock-absorbing block 16 is arranged at the connection between the fixed block 7 and the loading platform 3. One side of the shock-absorbing block 16 is connected to the energy storage piston 17, and the energy storage piston 17 is movably connected to the piston cylinder 19. The two ends of the return spring 18 are respectively connected to the energy storage piston 17 and the piston cylinder 19. The return spring 18 is used to drive the energy storage piston 17 to reset and play a certain shock-absorbing effect. When the energy storage piston 17 reciprocates in the piston cylinder 19, the air is compressed into the gas tank 20. The gas tank An air pressure sensor is provided at the inlet 20. When the air pressure sensor detects that the internal pressure value of the gas tank 20 is too large, the air intake valve 28 will be opened each time the fixed push rod 6 moves. The trigger block 21 is provided at the moving end of the energy storage piston 17. When the trigger block 21 presses the piezoelectric ceramic 22, the piezoelectric ceramic 22 will generate electrical energy. The battery 23 is provided with a rectifier circuit and a DC-DC converter. The alternating current generated by the piezoelectric ceramic 22 is converted into direct current after being converted by the rectifier and DC-DC converter inside the battery 23 and is stored in the battery 23. The battery 23 is used to supply energy for the air intake valve 28 and the pressure relief valve 30.

[0046] The tensioning mechanism includes a mounting plate 24, a pressure sensor 25, an air intake valve 26 and a pneumatic push rod 27. The mounting plate 24 is used to install the drive motor 13. The mounting plate 24 is rotatably connected to the mounting platform 11. The drive motor 13 is fixedly connected to the mounting plate 24. Both ends of the pneumatic push rod 27 are rotatably connected to the mounting plate 24 and the mounting platform 11 respectively. The pressure sensor 25 is arranged at the connection between the pneumatic push rod 27 and the mounting plate 24. The pressure sensor 25 is used to detect the pressure of the mounting plate 24 and thereby indirectly detect the tensioning condition of the transmission belt 1301. The air intake valve 26 is arranged at the air inlet of the pneumatic push rod 27. The air intake valve 26 and the air intake valve 28 are both solenoid valves. The air intake valve 26 and the gas tank 20 are connected to each other through a pipeline.

[0047] In this embodiment, the fixed block 7 connected to the fixed push rod 6 is provided with an air pressure reinforcement mechanism, and the air pressure reinforcement structure includes an air intake valve 28 and an air bag 29. The air bag 29 is provided on the fixed block 7, and the air intake valve 28 is provided at the air inlet of the air bag 29. The air intake valve 28 and the air tank 20 are connected to each other.

[0048] The cleaning mechanism comprises a pressure relief valve 30, which is also an electromagnetic valve, and is arranged on the fixed block 7. When the air bag 29 is inflated and the fixed block 7 releases the clamping of the automobile seat pipe, the pressure relief valve 30 is started. The pressure relief valve 30 is connected with the air bag 29 through a pipeline.

[0049] Working principle: when in use, the fixed block 7 is clamped on the automobile seat pipe by the fixed push rod 6, and after the clamping is completed, the moving push rod 9 drives the loading table 3 to move along the moving track 2 so that the chamfering cutter 5 is coaxially arranged. Then, the driving motor 13 is started to drive the power head 4 to rotate through the transmission belt 1301. Then, the sliding oil cylinder 12 drives the mounting table 11 to move to drive the chamfering cutter 5 to chamfer the automobile seat pipe.

[0050] When chamfering, the automobile seat pipe is processed by the chamfering cutter 5, which will produce vibration. Part of the vibration is absorbed by the damping block 16, and the remaining energy drives the damping block 16 to reciprocate, thereby driving the energy storage piston 17 to move along the piston cylinder 19. When the energy storage piston 17 reciprocates in the piston cylinder 19, it compresses the air into the air tank 20. When the energy storage piston 17 moves, it will drive the trigger block 21 to continuously press the piezoelectric ceramic 22. The energy generated by the piezoelectric ceramic 22 will be stored in the battery 23.

[0051] When the air pressure in the air tank 20 exceeds the set value, the air inlet valve two 28 will be opened and the air bag 29 will be inflated every time the automobile seat pipe is clamped, thereby enhancing the clamping effect of the automobile seat pipe. When the fixed push rod 6 drives the fixed block 7 to reset, the pressure relief valve 30 will be opened to clean the machining debris attached to the fixed block 7, preventing damage to the automobile seat pipe during subsequent clamping.

[0052] When the pressure sensor 25 detects that the pressure change value exceeds the set value, the air inlet valve one 26 will be started and the air in the air tank 20 will be input into the pneumatic push rod 27 to adjust the tension of the transmission belt 1301.

[0053] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. Double-head automatic chamfering machine for automobile seat tubes, characterized by: include: A frame, wherein the frame is provided with a movable track; A loading assembly, the loading assembly comprising a loading platform, a fixing mechanism and a moving mechanism, the fixing mechanism being used to fix the seat tube to the loading platform, and the moving mechanism being used to drive the loading platform to move along the moving track; A chamfering assembly, comprising a driving mechanism, a transmission mechanism, a power head, a clamping mechanism, and a chamfering cutter, wherein the transmission mechanism is used to transmit the power of the driving mechanism to the power head, the clamping mechanism is provided on the power head, and the clamping mechanism is used to clamp and fix the chamfering cutter to the power head; A vibration energy recovery component, the vibration energy recovery component is used to recover the vibration energy generated during chamfering and convert it; Recycling component, the recycling component includes a tensioning mechanism, a pneumatic reinforcement structure and a cleaning mechanism, the tensioning mechanism is used to use the energy converted by the vibration energy recovery component to adjust the tensioning force of the transmission mechanism, the pneumatic reinforcement mechanism is used to use the energy converted by the vibration energy recovery component to reinforce the seat tube during processing, and the cleaning mechanism is used to use the air when the pneumatic reinforcement mechanism is depressurized to clean the loading platform.

2. The double-head automatic chamfering machine for automobile seat tubes according to claim 1, characterized in that: The fixing mechanism includes a fixing push rod and a fixing block. The fixing push rod is arranged on the loading platform, and the fixing push rod is used to drive the fixing block to fix the automobile seat tube.

3. The double-head automatic chamfering machine for automobile seat tubes according to claim 1, characterized in that: The moving mechanism includes a fixed platform, a moving push rod and a guide rod. The fixed platform is arranged on one side of the moving guide rail, the moving push rod is arranged on the fixed platform, one end of the moving push rod is connected to the loading platform, the guide rod is symmetrically arranged on the fixed platform, the loading platform is provided with a guide hole, and the guide rod is symmetrically inserted into the guide hole.

4. The double-head automatic chamfering machine for automobile seat tubes according to claim 2, characterized in that: The driving mechanism includes a mounting platform, a sliding cylinder and a driving motor. The mounting platform is movably connected to the frame. The sliding cylinder is used to drive the mounting platform to move. The transmission mechanism includes a transmission belt. The driving motor is arranged on the mounting platform. The power head is rotatably connected to the mounting platform. The transmission belt is used to connect the output end of the driving motor and the power head to each other.

5. The double-head automatic chamfering machine for automobile seat tubes according to claim 4, characterized in that: The clamping mechanism includes a spring clip and a clamping knob. The spring clip is arranged on the power head. The clamping knob is connected to the power head through a thread. The clamping knob is sleeved on the spring clip. By rotating the clamping knob, the clamping force of the spring clip on the chamfering cutter can be adjusted.

6. The double-head automatic chamfering machine for automobile seat tubes according to claim 4, characterized in that: The vibration energy recovery component includes a shock-absorbing block, an energy storage piston, a return spring, a piston cylinder, an air tank, a trigger block, a piezoelectric ceramic and a battery. The shock-absorbing block is arranged on the fixed block, and the shock-absorbing block is connected to the energy storage piston, and the energy storage piston is movably connected to the piston cylinder. The two ends of the return spring are respectively connected to the energy storage piston and the piston cylinder. When the energy storage piston reciprocates in the piston cylinder, the air is compressed into the air tank. The trigger block is arranged at the movable end of the energy storage piston. When the trigger block presses the piezoelectric ceramic, the piezoelectric ceramic will generate electrical energy and store it in the battery.

7. The double-head automatic chamfering machine for automobile seat tubes according to claim 6, characterized in that: The tensioning mechanism includes a mounting plate, a pressure sensor, an air intake valve 1 and a pneumatic push rod. The mounting plate is arranged on the mounting platform. The mounting plate is installed with a driving motor. The two ends of the pneumatic push rod are respectively connected to the mounting plate and the mounting platform. The pressure sensor is arranged at the connection between the pneumatic push rod and the mounting plate. The air intake valve 1 is arranged at the air inlet of the pneumatic push rod. The air intake valve 1 and the gas tank are connected to each other through a pipeline.

8. The double-head automatic chamfering machine for automobile seat tubes according to claim 7, characterized in that: The air pressure reinforcement structure includes an air intake valve 2 and an air bag. The air bag is arranged on the fixed block. The air intake valve 2 is arranged at the air inlet of the air bag. The air intake valve 2 and the air tank are connected to each other.

9. The double-head automatic chamfering machine for automobile seat tubes according to claim 8, characterized in that: The cleaning mechanism includes a pressure relief valve, which is arranged on the fixed block and is communicated with the air bag through a pipeline.

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