Automatic stamping die for safety belt support machining

Abstract

The utility model discloses an automatic stamping die for safety belt support machining, which comprises a fixing frame, a through groove is arranged on the fixing frame, a partition plate is arranged in the middle of the through groove, so that the through groove is divided into two symmetrical mounting cavities, a multi-station stamping component is arranged in each mounting cavity, a fixing column is fixedly mounted at the top of the partition plate, and the fixing column is fixed on the fixing frame. Cantilevers are fixedly arranged on the two sides, corresponding to the multi-station stamping assemblies, of the fixing column, stamping cylinders are fixedly installed on the tops of the cantilevers, and the output ends of the stamping cylinders are detachably connected with the safety belt support upper die. According to the utility model, the continuous and automatic stamping processing of the safety belt bracket is realized.

Description

Technical Field

[0001] This utility model relates to the field of seat belt bracket processing technology, specifically an automated stamping die for seat belt bracket processing. Background Technology

[0002] See Figure 1 and Figure 2 As a core component for ensuring the safety of drivers and passengers, the current mainstream stamping process for car seat belt brackets still relies on traditional single-station stamping devices: the workpiece needs to be manually picked up and placed repeatedly at the stamping station, as described in the Chinese patent below.

[0003] A Chinese utility model patent with patent application number 201922262089.X mentions a stamping and forming device for automotive seat belt brackets. This device can solve the safety hazards and low production efficiency problems existing in the prior art. However, this device does not have continuous processing capabilities, requiring workers to repeatedly handle the workpiece, which wastes time and keeps the stamping machine in a standstill, reducing the stamping machine's processing efficiency for seat belt brackets. Therefore, it is necessary to propose an automated stamping die for seat belt bracket processing to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automated stamping die for processing seat belt brackets, which can continuously stamp seat belt brackets, thus solving the technical problems existing in the prior art.

[0005] To achieve the aforementioned goal of continuously and automatically stamping seat belt brackets, this utility model provides the following technical solution:

[0006] An automated stamping die for processing seat belt brackets includes a fixed frame with a through groove. A partition is provided in the middle of the through groove, dividing it into two symmetrical mounting cavities. A multi-station stamping assembly is provided in each mounting cavity. A fixed column is fixedly installed on the top of the partition. Cantilever arms are fixedly installed on both sides of the fixed column corresponding to the multi-station stamping assembly. A stamping cylinder is fixedly installed on the top of the cantilever arms. The output end of the stamping cylinder is detachably connected to the upper die of the seat belt bracket.

[0007] The multi-station stamping assembly includes a main synchronous pulley, a driven synchronous pulley, a drive motor, and a pneumatic push rod. The main and driven synchronous pulleys are installed in the mounting cavity, respectively. The drive motor is installed on the outer wall of the fixed frame, and the output end of the drive motor is connected to the main synchronous pulley. The main and driven synchronous pulleys are connected by a synchronous belt. The synchronous belt has a lower die for the safety belt bracket at equal intervals. The bottom of the lower die for the safety belt bracket has an opening on the synchronous belt. A pneumatic push rod is vertically fixed in the mounting cavity corresponding to the upper die for the safety belt bracket. The top end of the pneumatic push rod is connected to a support plate.

[0008] Preferably, a positioning strip is installed on the top of the support plate, and a positioning groove matching the positioning strip is provided at the bottom of the lower mold of the seat belt bracket.

[0009] Preferably, the surface of the positioning strip is coated with a wear-resistant coating.

[0010] Furthermore, mold clamping strips are provided on both sides of the lower mold of the seat belt bracket. The mold clamping strips are connected to the synchronous belt, and connecting shafts are provided at both ends of the mold clamping strips. Rollers are installed on the connecting shafts. An annular sliding groove is provided on the inner side wall of the mounting cavity. The annular sliding groove matches the movement trajectory of the lower mold of the seat belt bracket, and the rollers slide in the annular sliding groove.

[0011] Furthermore, guide grooves are correspondingly provided on the two mold clamping bars, and the lower mold of the seat belt bracket is fitted in the guide grooves on both sides. A support plate is provided at the bottom of the mold clamping bar, and the bottom of the lower mold of the seat belt bracket is connected to the support plate with screws. A stepped hole is provided on the mold clamping bar, and a T-shaped shaft is movably fitted in the stepped hole. The bottom end of the T-shaped shaft is connected to the support plate, and a return spring is sleeved on the T-shaped shaft.

[0012] Furthermore, a support base is installed between the partition and the inner wall of the fixed frame, and the bottom of the pneumatic push rod is fixedly installed on the support base.

[0013] Furthermore, a first position sensor is provided on the partition plate corresponding to the pneumatic push rod, and a second position sensor is provided on the support plate and the lower mold of the seat belt bracket.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. Continuous automated stamping processing of seat belt brackets has been achieved;

[0016] 2. The pneumatic push rod is rigidly connected to the fixed frame through the support base, dynamically abutting against the lower die to offset the stamping reaction force; the roller slides along the annular groove for guidance, and with the T-shaped shaft + return spring buffer mechanism, it effectively reduces the vibration amplitude of the equipment by more than 60% and extends the die life by 2-3 times. Attached Figure Description

[0017] Figure 1A top view of a car seatbelt bracket;

[0018] Figure 2 This is a side view of a car seatbelt bracket.

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 4 This is a partial sectional view of the front of the present invention;

[0021] Figure 5 This diagram shows the fit between the mold clamping bar and the annular groove in this utility model.

[0022] Figure 6 This is a top view of the cooperation between the lower mold of the seat belt bracket and the mold clamping strip in this utility model;

[0023] Figure 7 for Figure 6 AA section view in the image.

[0024] In the diagram: 1. Fixed frame; 2. Partition plate; 3. Mounting cavity; 4. Multi-station stamping assembly; 41. Main synchronous pulley; 42. Driven synchronous pulley; 43. Drive motor; 44. Pneumatic push rod; 45. Synchronous belt; 46. Opening; 47. Support plate; 48. Positioning strip; 5. Fixed column; 6. Cantilever; 7. Stamping cylinder; 8. Upper die of safety belt bracket; 9. Lower die of safety belt bracket; 10. Die clamping strip; 11. Connecting shaft; 12. Roller; 13. Annular groove; 14. Support plate; 15. Stepped hole; 16. T-shaft; 17. Return spring; 18. Support base. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 3-7 An automated stamping die for processing seat belt brackets includes a fixed frame 1. The fixed frame 1 has a through groove, and a partition 2 is provided in the middle of the through groove, thereby dividing the through groove into two symmetrical mounting cavities 3. A multi-station stamping assembly 4 is provided in the mounting cavity 3. A fixed column 5 is fixedly installed on the top of the partition 2. Cantilever 6 is fixedly installed on both sides of the fixed column 5 corresponding to the multi-station stamping assembly 4. A stamping cylinder 7 is fixedly installed on the top of the cantilever 6. The output end of the stamping cylinder 7 is detachably connected to the upper die 8 of the seat belt bracket.

[0027] The multi-station stamping assembly 4 includes a main synchronous pulley 41, a driven synchronous pulley 42, a drive motor 43, and a pneumatic push rod 44. The main synchronous pulley 41 and the driven synchronous pulley 42 are rotatably mounted in the mounting cavity 3. The drive motor 43 is mounted on the outer wall of the fixed frame 1, and the output end of the drive motor 43 is connected to the main synchronous pulley 41. The main synchronous pulley 41 and the driven synchronous pulley 42 are connected by a synchronous belt 45. A safety belt bracket lower die 9 is provided at equal intervals on the synchronous belt 45. An opening 46 is provided on the synchronous belt 45 at the bottom of the safety belt bracket lower die 9. A pneumatic push rod 44 is vertically fixed in the mounting cavity 3 corresponding to the safety belt bracket upper die 8. A support plate 47 is connected to the top of the pneumatic push rod 44. An automatic tensioning wheel (not shown in the figure) is installed in the mounting cavity 3 to ensure sufficient tension on the synchronous belt 45.

[0028] In this embodiment, a positioning strip 48 is installed on the top of the support plate 47, and a positioning groove matching the positioning strip 48 is provided at the bottom of the lower mold 9 of the seat belt bracket. The surface of the positioning strip 48 is coated with a wear-resistant coating, preferably polytetrafluoroethylene.

[0029] In this embodiment, mold clamping bars 10 are provided on both sides of the lower mold 9 of the seat belt bracket. The mold clamping bars 10 are connected to the synchronous belt 45, and connecting shafts 11 are provided at both ends of the mold clamping bars 10. Rollers 12 are installed on the connecting shafts 11. An annular groove 13 is formed in the inner side wall of the mounting cavity 3. The annular groove 13 matches the movement trajectory of the lower mold 9 of the seat belt bracket, and the rollers 12 slide in the annular groove 13. The mold clamping bars 10 are driven to move along the annular groove 13 by the synchronous belt 45.

[0030] In this embodiment, guide grooves are correspondingly formed on the two mold clamping bars 10. The lower mold 9 of the seat belt bracket fits into these guide grooves on both sides. A support plate 14 is provided at the bottom of the mold clamping bar 10. The bottom of the lower mold 9 of the seat belt bracket is supported by the support plate 14 and connected to the support plate 14 by screws. A stepped hole 15 is formed on the mold clamping bar 10. A T-shaped shaft 16 is movably fitted in the stepped hole 15. The bottom end of the T-shaped shaft 16 is connected to the support plate 14. A return spring 17 is sleeved on the T-shaped shaft 16. During stamping, the upper mold 8 of the seat belt bracket presses the lower mold 9 of the seat belt bracket down by a certain displacement. When the upper mold 8 of the seat belt bracket moves up, the return spring 17 drives the support plate 14 to move up, so that the lower mold 9 of the seat belt bracket returns to its original position.

[0031] A support base 18 is installed between the partition 2 and the inner wall of the fixed frame 1, and the bottom of the pneumatic push rod 44 is fixedly installed on the support base 18.

[0032] A first position sensor (not shown in the figure) is installed on the partition plate 2 corresponding to the pneumatic push rod 44. Second position sensors (not shown in the figure) are installed on the support plate 47 and the lower mold 9 of the seatbelt bracket, respectively. A control panel with a touchscreen (not shown in the figure) is installed on the fixed frame 1. The first position sensor, the second position sensor, the stamping cylinder 7, the drive motor 43, and the pneumatic push rod 44 are all electrically connected to the control panel. The first position sensor detects whether the lower mold 9 of the seatbelt bracket has moved to the designated position, and the second position sensor detects whether the support plate 47 has moved into position.

[0033] An emergency stop button is provided on the control panel, and a pressure sensor (not shown in the figure) is provided at the bottom of the tray 14. The emergency stop button is triggered when an abnormal impact is detected.

[0034] Work process:

[0035] One end of the fixed frame 1 is the feeding end, and the other end is the discharging end. At the feeding end, the part to be stamped is placed into the lower die 9 of the seat belt bracket by a worker or robot. The drive motor 43 is started, and the synchronous belt 45 drives the lower die 9 of the seat belt bracket to circulate along the annular slide groove 13 through the die clamping bar 10. When the first position sensor detects that the lower die 9 of the seat belt bracket has moved into place, the synchronous belt 45 stops moving, the pneumatic push rod 44 drives the support plate 47 to rise, and the positioning bar 48 is matched into the positioning groove. After the second position sensor confirms the alignment, the stamping cylinder 7 moves down to apply force, and the upper die 8 of the seat belt bracket moves down to cooperate with the lower die 9 of the seat belt bracket to complete the stamping process. After the stamping is completed, the pneumatic push rod 44 is reset, the upper die 8 of the seat belt bracket moves up, and the synchronous belt 45 drives the next lower die 9 of the seat belt bracket to move into place. The stamped seat belt bracket falls from the discharging end. A collection box can be placed at the discharging end to collect the fallen seat belt brackets, or a conveyor belt can be arranged to catch the fallen seat belt brackets and transport them to the designated location.

[0036] This utility model adopts a symmetrically arranged multi-station stamping assembly and a main and slave synchronous belt pulley transmission system. The drive motor drives the lower die of the safety belt bracket to circulate along the annular slide groove. There is no need to stop the machine to wait for loading. The single stamping cycle is shortened to within 5 seconds, and the cycle time can reach 8-12 times per minute, which improves the capacity utilization rate by more than 3 times compared with the traditional process.

[0037] The positioning strip on the top of the support plate precisely matches the positioning groove at the bottom of the lower die of the seat belt bracket. Combined with the polytetrafluoroethylene coating on the surface (friction coefficient ≤0.1) and the closed-loop control of the first and second position sensors, it ensures that the offset of the part to be stamped during high-speed stamping is <0.05mm, and the dimensional tolerance of the finished product is stable within ±0.1mm.

[0038] The pneumatic push rod is rigidly connected to the fixed frame through the support base, dynamically abutting against the lower die to offset the stamping reaction force; the roller slides and guides along the annular groove, and with the T-shaped shaft + return spring buffer mechanism, it effectively reduces the vibration amplitude of the equipment by more than 60% and extends the mold life by 2-3 times.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated stamping die for processing seat belt brackets, comprising a fixing frame (1), characterized in that: The fixed frame (1) is provided with a through groove, and a partition (2) is provided in the middle of the through groove, thereby dividing the through groove into two symmetrical installation cavities (3). A multi-station stamping assembly (4) is provided in the installation cavity (3). A fixed column (5) is fixedly installed on the top of the partition (2). Cantilever (6) is fixedly provided on both sides of the fixed column (5) corresponding to the multi-station stamping assembly (4). A stamping cylinder (7) is fixedly installed on the top of the cantilever (6). The output end of the stamping cylinder (7) is detachably connected to the upper mold (8) of the safety belt bracket. The multi-station stamping assembly (4) includes a main synchronous pulley (41), a driven synchronous pulley (42), a drive motor (43), and a pneumatic push rod (44). The main synchronous pulley (41) and the driven synchronous pulley (42) are installed in the mounting cavity (3). The drive motor (43) is installed on the outer wall of the fixed frame (1). The output end of the drive motor (43) is connected to the main synchronous pulley (41). The main synchronous pulley (41) and the driven synchronous pulley (42) are connected by a synchronous belt (45). The lower die (9) of the safety belt bracket is provided at equal intervals on the synchronous belt (45). An opening (46) is provided on the synchronous belt (45) at the bottom of the lower die (9). A pneumatic push rod (44) is vertically fixed in the mounting cavity (3) corresponding to the upper die (8) of the safety belt bracket. A support plate (47) is connected to the top of the pneumatic push rod (44).

2. The automated stamping die for processing seat belt brackets according to claim 1, characterized in that: The top of the support plate (47) is equipped with a positioning strip (48), and the bottom of the lower mold (9) of the seat belt bracket is provided with a positioning groove that matches the positioning strip (48).

3. The automated stamping die for processing seat belt brackets according to claim 2, characterized in that: The positioning strip (48) is coated with a wear-resistant coating.

4. The automated stamping die for processing seat belt brackets according to claim 2, characterized in that: The lower mold (9) of the seat belt bracket is provided with mold clamping strips (10) on both sides. The mold clamping strips (10) are connected to the synchronous belt (45), and the two ends of the mold clamping strips (10) are provided with connecting shafts (11). Rollers (12) are installed on the connecting shafts. An annular groove (13) is provided on the inner side wall of the mounting cavity (3). The annular groove (13) matches the movement trajectory of the lower mold (9) of the seat belt bracket, and the rollers (12) slide in the annular groove (13).

5. An automated stamping die for processing seat belt brackets according to claim 4, characterized in that: The two mold clamping bars (10) are respectively opened with guide grooves. The lower mold (9) of the seat belt bracket is fitted in the guide grooves on both sides. A support plate (14) is provided at the bottom of the mold clamping bar (10). The bottom of the lower mold (9) of the seat belt bracket is screwed to the support plate (14). A stepped hole (15) is opened on the mold clamping bar (10). A T-shaped shaft (16) is movably fitted in the stepped hole (15). The bottom end of the T-shaped shaft (16) is connected to the support plate (14). A return spring (17) is sleeved on the T-shaped shaft (16).

6. An automated stamping die for processing seat belt brackets according to claim 5, characterized in that: A support base (18) is installed between the partition (2) and the inner wall of the fixed frame (1), and the bottom of the pneumatic push rod (44) is fixedly installed on the support base (18).

7. The automated stamping die for processing seat belt brackets according to claim 1, characterized in that: A first position sensor is provided on the partition plate (2) corresponding to the pneumatic push rod (44), and a second position sensor is provided on the support plate (47) and the lower mold (9) of the seat belt bracket.

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