Safety belt spring bolt punch forming device

Abstract

The utility model relates to the technical field of punch forming devices, in particular to a safety belt spring bolt punch forming device which comprises a machine table, a lower die base arranged on the machine table, a machine frame arranged above the lower die base, a hydraulic cylinder arranged on the machine frame, a piston rod installed at the output end of the hydraulic cylinder, an upper die base arranged on the piston rod and a punching die arranged on the upper die base. A forming die cavity matched with the stamping die is formed in the lower die base, a T-shaped clamping block is arranged on the lower die base, a C-shaped clamping groove is formed in one end of the upper die base, the C-shaped clamping groove is movably clamped to the T-shaped clamping block, a first clamping groove and a spring groove are formed in the lower die base, the first clamping groove is communicated with the interiors of the forming die cavity and the spring groove, an ejector rod is movably clamped in the first clamping groove, and the ejector rod is movably connected with the lower die base. The spring bolt structure solves the problems that an existing complex spring bolt structure is prone to being clamped with a mold after being punched, and demolding is not convenient, an extra driving structure does not need to be added to jack the ejector rod when the ejector rod is used for jacking the mold, and the complexity of the mold is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of stamping forming equipment, specifically a stamping forming device for seat belt latches. Background Technology

[0002] In the manufacturing process of automotive seat belt latches, stamping is one of the core steps. In the existing technology, the stamping and forming devices for latches generally suffer from deficiencies in efficiency, precision, and safety. These problems restrict the further development of latch manufacturing technology.

[0003] Existing complex locking tongue structures (such as those with recesses, anti-slip grooves, or irregular through holes) are prone to jamming with the mold after stamping, making demolding difficult and affecting stamping efficiency. Current solutions mostly use ejector pins or manual knocking for demolding. The former generally requires an additional drive structure to lift the ejector pin, which increases the complexity of the mold, while the latter, which uses manual knocking for demolding, reduces production efficiency.

[0004] To address the issue of irregularly shaped locking tongues and reduce demolding resistance, we provide a seatbelt locking tongue stamping forming device. Utility Model Content

[0005] The purpose of this utility model is to provide a seat belt latch stamping device to solve the problem mentioned in the background art that the existing complex latch structure is prone to jamming with the mold after stamping, making it difficult to demold and affecting the stamping efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A seatbelt latch stamping forming device includes a machine base, a lower die base mounted on the machine base, a frame mounted above the lower die base, a hydraulic cylinder mounted on the frame, a piston rod mounted on the output end of the hydraulic cylinder, an upper die base mounted on the piston rod, a stamping die mounted on the upper die base, a forming cavity formed by cooperating with the stamping die on the lower die base, a T-shaped locking block mounted on the lower die base, and an I-shaped locking groove at one end of the upper die base, the I-shaped locking groove being movable. The lower mold base is provided with a first slot and a spring slot, which are snapped onto the T-shaped locking block. The first slot is connected to the forming mold cavity and the inside of the spring slot. A push rod is movably snapped into the first slot. An elastic relief component is provided in the spring slot, which can move upward in the first slot when the bottom end of the push rod is squeezed. The C-shaped locking slot and the push rod are connected by a linkage structure. When the C-shaped locking slot moves upward, it can drive the push rod to rise upward to push out the stamped locking tongue mold in the forming mold cavity.

[0008] A seatbelt latch stamping forming device as described above: the outer dimensions of the stamping die are adapted to the inner dimensions of the forming die cavity, and the stamping die is movably embedded and snapped into the inside of the forming die cavity.

[0009] As described above, a seatbelt latch stamping forming device is provided in which the inner surface dimensions of the C-shaped groove are adapted to the outer surface dimensions of the T-shaped block, and the C-shaped groove is movably fitted and engaged on the T-shaped block.

[0010] A seatbelt latch stamping forming device as described above: the elastic clearance component includes a spring fixed to the top wall inside the spring groove and a locking block movably engaged inside the spring groove. The spring and the locking block are distributed from top to bottom, and the locking block is fixed to the top rod.

[0011] A seatbelt latch stamping forming device as described above: the linkage structure includes a second slot and a third slot formed in the lower mold base. The third slot is connected to the second slot and the first slot. A connecting rod is movably engaged inside the second slot at the bottom of the U-shaped slot. An extrusion rod is movably engaged inside the third slot. A first wedge block is provided on the side wall of the connecting rod near the extrusion rod. A second wedge block is provided at the end of the extrusion rod near the connecting rod. The inclined surfaces of the first wedge block and the second wedge block are in contact.

[0012] As described above, a seatbelt latch stamping forming device has the following characteristics: the top end of the push rod is flat, and the bottom end is designed with a dome shape; the end of the extrusion rod near the push rod is also designed with a dome shape.

[0013] As described above, a seat belt latch stamping forming device has soft rubber layers adhered to the upper surfaces of the lower mold base and on both sides of the forming mold cavity.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: A lower mold base is provided on the machine base, a frame is provided above the lower mold base, a hydraulic cylinder is provided on the frame, a piston rod is installed at the output end of the hydraulic cylinder, an upper mold base is provided on the piston rod, a stamping die is provided on the upper mold base, and a forming cavity that cooperates with the stamping die is provided on the lower mold base. In use, the seat belt latch base plate is conveyed to the upper surface of the lower mold base to reach the upper part of the forming cavity. The hydraulic cylinder is activated to drive the piston rod to move down, causing the stamping die on the upper mold base to move down into the forming cavity. Through the interaction between the stamping die and the forming die... The seatbelt latch base plate is stamped and formed by extrusion. The C-shaped slot is movably engaged with the T-shaped block. The spring groove is equipped with an elastic relief component that can move upward in the first slot when the bottom end of the ejector rod is squeezed. The C-shaped slot and the ejector rod are connected by a linkage structure. When the C-shaped slot moves upward, it can drive the ejector rod to rise upward to eject the stamped latch mold in the forming cavity. After the stamping is completed, the hydraulic cylinder drives the upper mold base to move upward, which in turn drives the C-shaped slot to move upward, thereby synchronously driving the ejector rod to rise upward and automatically eject the latch mold, which is convenient for demolding.

[0015] Therefore, this utility model solves the problem that the existing complex locking tongue structure is prone to jamming with the mold after stamping, making it difficult to demold. Furthermore, when using the ejector pin to lift the mold, there is no need to add an additional drive structure to lift the ejector pin, thus reducing the complexity of the mold. Attached Figure Description

[0016] Figure 1 This is a first-view schematic diagram of the overall structure of a seatbelt latch stamping device.

[0017] Figure 2 A seat belt locking tongue stamping forming device Figure 1 A schematic diagram of the structure of the removal machine.

[0018] Figure 3 A seat belt locking tongue stamping forming device Figure 2 A schematic diagram of the explosion structure.

[0019] Figure 4 A seat belt locking tongue stamping forming device Figure 3 A structural diagram from another perspective.

[0020] Figure 5 A seat belt locking tongue stamping forming device Figure 3 A schematic diagram of the decomposed part of the structure.

[0021] Figure 6 A seat belt locking tongue stamping forming device Figure 5 A schematic diagram of the cross-sectional structure.

[0022] Figure 7 A seat belt locking tongue stamping forming device Figure 6 A structural diagram from another perspective.

[0023] In the diagram: 1. Machine base; 2. Lower die base; 3. Machine frame; 4. Hydraulic cylinder; 5. Piston rod; 6. Upper die base; 7. Stamping die; 8. C-shaped slot; 9. T-shaped block; 10. Forming cavity; 11. First slot; 12. Second slot; 13. Third slot; 14. Spring slot; 15. Push rod; 16. Spring; 17. Block; 18. Extrusion rod; 19. Connecting rod; 20. First wedge block; 21. Second wedge block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figures 1 to 7As one embodiment of this utility model, a seat belt latch stamping forming device includes a machine base 1, a lower mold base 2 on the machine base 1, a frame 3 above the lower mold base 2, a hydraulic cylinder 4 on the frame 3, a piston rod 5 installed at the output end of the hydraulic cylinder 4, an upper mold base 6 on the piston rod 5, a stamping die 7 on the upper mold base 6, a forming cavity 10 that cooperates with the stamping die 7 on the lower mold base 2, a T-shaped locking block 9 on the lower mold base 2, and an inverted groove 8 at one end of the upper mold base 6 for movable locking. The lower mold base 2 is provided with a first slot 11 and a spring slot 14, which are connected to the T-shaped locking block 9. The first slot 11 is connected to the forming mold cavity 10 and the spring slot 14. A push rod 15 is movably locked in the first slot 11. An elastic relief component is provided in the spring slot 14, which can move upward in the first slot 11 when the bottom end of the push rod 15 is squeezed. The C-shaped locking groove 8 and the push rod 15 are connected by a linkage structure. When the C-shaped locking groove 8 moves upward, it can drive the push rod 15 to rise upward to push out the stamped locking tongue mold in the forming mold cavity 10.

[0026] In this embodiment, a lower mold base 2 is provided on the machine base 1, a frame 3 is provided above the lower mold base 2, a hydraulic cylinder 4 is provided on the frame 3, a piston rod 5 is installed at the output end of the hydraulic cylinder 4, an upper mold base 6 is provided on the piston rod 5, a stamping die 7 is provided on the upper mold base 6, and a forming cavity 10 that cooperates with the stamping die 7 is provided on the lower mold base 2. In use, the seat belt latch base plate is conveyed to the upper surface of the lower mold base 2 and reaches the upper surface of the forming cavity 10. The hydraulic cylinder 4 is electrically connected to an external power source through a wire. Activating the hydraulic cylinder 4 will drive the piston rod 5 to move downward, causing the stamping die 7 on the upper mold base 6 to move downward into the forming cavity 10. The mold cavity 10 is used to press and form the seat belt latch base plate. The C-shaped groove 8 is movably engaged with the T-shaped block 9. The spring groove 14 is provided with an elastic relief component that can move upward in the first groove 11 when the bottom end of the ejector rod 15 is pressed. The C-shaped groove 8 and the ejector rod 15 are connected by a linkage structure. When the C-shaped groove 8 moves upward, it can drive the ejector rod 15 to lift upward to eject the latch mold after being stamped in the forming mold cavity 10. After the stamping is completed, the hydraulic cylinder 4 drives the upper mold base 6 to move upward, which in turn drives the C-shaped groove 8 to move upward, thereby synchronously driving the ejector rod 15 to lift upward and automatically eject the latch mold, so as to facilitate demolding.

[0027] As a further embodiment of this utility model, the outer dimensions of the stamping die 7 are adapted to the inner dimensions of the forming cavity 10, and the stamping die 7 is movably embedded and snapped into the inside of the forming cavity 10.

[0028] In this embodiment, the stamping die 7 is movably embedded and snapped into the forming mold cavity 10, and the seat belt latch base plate is stamped and formed by the cooperation between the stamping die 7 and the forming mold cavity 10.

[0029] As a further embodiment of this utility model, the inner dimensions of the C-shaped slot 8 are adapted to the outer dimensions of the T-shaped block 9, and the C-shaped slot 8 is movably fitted and engaged on the T-shaped block 9.

[0030] In this embodiment, the U-shaped slot 8 is movably engaged with the T-shaped block 9 to limit the movement of the upper mold base 6 during lifting and lowering, preventing positional deviation when the upper mold base 6 moves downward.

[0031] As a further embodiment of this utility model, the elastic clearance component includes a spring 16 fixed to the top wall inside the spring groove 14 and a locking block 17 movably engaged inside the spring groove 14. The spring 16 and the locking block 17 are distributed from top to bottom, and the locking block 17 is fixed to the top rod 15.

[0032] In this embodiment, utilizing the elastic extension and contraction characteristics of the spring 16, the spring 16 presses against the locking block 17, causing the locking block 17 to reach the bottom wall inside the spring groove 14. Thus, when the bottom end of the ejector rod 15 is not pressed, it can be pushed downwards to automatically reset to its initial position. When the bottom end of the ejector rod 15 is not pressed, its upper surface is on the same plane as the bottom wall inside the forming cavity 10, which helps ensure the flatness of the bottom of the locking tongue base plate during stamping. That is, during stamping, the stamping die 7 moves downwards, and at this time the bottom end of the ejector rod 15 is not pressed... When the extrusion is completed, the spring 16 pushes the ejector rod 15 downward to return to its initial position, that is, the upper surface of the ejector rod 15 is on the same plane as the bottom wall of the forming cavity 10. After the stamping is completed, the upper mold base 6 moves upward, the stamping die 7 disengages from the forming cavity 10, and the C-shaped slot 8 also moves upward simultaneously. The linkage structure drives the bottom end of the ejector rod 15 to be extruded and pushed upward. When the ejector rod 15 moves upward, it drives the locking block 17 to move upward and extrude the spring 16. At this time, the spring 16 is in a compressed state.

[0033] As a further embodiment of this utility model, the linkage structure includes a second slot 12 and a third slot 13 formed in the lower mold base 2. The third slot 13 is connected to the second slot 12 and the first slot 11. A connecting rod 19 is provided at the bottom of the U-shaped slot 8 and is movably engaged inside the second slot 12. An extrusion rod 18 is movably engaged inside the third slot 13. A first wedge block 20 is provided on the side wall of the connecting rod 19 near the extrusion rod 18. A second wedge block 21 is provided at the end of the extrusion rod 18 near the connecting rod 19. The inclined surfaces of the first wedge block 20 and the second wedge block 21 are in contact.

[0034] In this embodiment, after the stamping is completed, the upper die holder 6 moves upward, which drives the C-shaped groove 8 to move upward. The C-shaped groove 8 moves upward, which drives the connecting rod 19 to move upward. During the upward movement of the connecting rod 19, the inclined surfaces of the first wedge block 20 and the second wedge block 21 are used to drive the extrusion rod 18 to move in the third groove 13. When the extrusion rod 18 moves, one end will squeeze the bottom of the ejector rod 15, causing the ejector rod 15 to rise upward and automatically eject the mold in the forming cavity 10. In addition, during the next stamping, the hydraulic cylinder 4 drives the upper die holder 6 to move downward, which drives the connecting rod 19 at the bottom of the C-shaped groove 8 to move downward. The first wedge block 20 and the second wedge block 21 disengage. The spring 16 elastically resets and squeezes the clamping block 17, causing the ejector rod 15 to move downward and automatically reset. When the ejector rod 15 moves downward, its bottom end squeezes the extrusion rod 18, causing the extrusion rod 18 to move and reset to its initial position.

[0035] As a further embodiment of this utility model, the top end of the push rod 15 is flat and the bottom end adopts a dome design, and the end of the extrusion rod 18 near the push rod 15 adopts a dome design.

[0036] In this embodiment, the top of the push rod 15 is flat to avoid affecting the bottom of the mold when the locking tongue base plate is stamped, and the bottom end adopts a dome design. The end of the extrusion rod 18 near the push rod 15 also adopts a dome design. The dome design facilitates the extrusion rod 18 and the end of the push rod 15 to press against each other and avoid jamming.

[0037] As a further embodiment of this utility model, soft rubber layers are respectively adhered to the upper surfaces of the lower mold base 2 and located on both sides of the molding cavity 10.

[0038] In this embodiment, by attaching soft rubber layers to the upper surfaces of the lower die holder 2 and located on both sides of the forming cavity 10, the collision noise during stamping can be reduced when the upper die holder 6 moves down to the upper surface of the lower die holder 2.

[0039] The working principle of this utility model is as follows: A lower mold base 2 is provided on the machine base 1, and a frame 3 is provided above the lower mold base 2. A hydraulic cylinder 4 is provided on the frame 3, and a piston rod 5 is installed at the output end of the hydraulic cylinder 4. An upper mold base 6 is provided on the piston rod 5, and a stamping die 7 is provided on the upper mold base 6. A forming cavity 10 that cooperates with the stamping die 7 is opened on the lower mold base 2. In use, the seat belt latch base plate is conveyed to the upper surface of the lower mold base 2 and reaches the upper surface of the forming cavity 10. The hydraulic cylinder 4 is electrically connected to an external power source through a wire. Activating the hydraulic cylinder 4 will drive the piston rod 5 to move down, causing the stamping die 7 on the upper mold base 6 to move down into the forming cavity 10. The stamping die 7 and the forming cavity 10 cooperate to press and form the seat belt latch base plate. The C-shaped slot 8 is movably engaged with the T-shaped block 9. A spring groove 14 contains an elastic clearance component that allows the bottom end of the ejector rod 15 to move upwards within the first slot 11 when pressed. Utilizing the elastic extension and contraction characteristics of the spring 16, the spring 16 presses against the block 17, causing the block 17 to reach the bottom wall inside the spring groove 14. Thus, when the bottom end of the ejector rod 15 is not pressed, it can be pushed downwards to automatically return to its initial position. When the bottom end of the ejector rod 15 is not pressed, its upper surface is on the same plane as the bottom wall inside the forming cavity 10, ensuring the flatness of the bottom of the locking tongue base plate during stamping. That is, during stamping, the stamping die 7 moves downwards, and when the bottom end of the ejector rod 15 is not pressed, it is pushed by the elastic force of the spring 16. 15 moves downwards to reset to its initial position, i.e., the upper surface of ejector pin 15 is on the same plane as the bottom wall inside the forming cavity 10. After stamping, the upper mold base 6 moves upwards, the stamping die 7 disengages from the forming cavity 10, and the C-shaped slot 8 moves upwards simultaneously. The linkage structure drives the bottom end of ejector pin 15 to be squeezed upwards, causing it to be lifted. When ejector pin 15 moves upwards, it drives the locking block 17 to move upwards and squeeze the spring 16. At this time, the spring 16 is in a compressed state. The C-shaped slot 8 and ejector pin 15 cooperate through the linkage structure. After stamping, the upper mold base 6 moves upwards, which drives the C-shaped slot 8 to move upwards. The C-shaped slot 8 moves upwards, which drives the connecting rod 19 to move upwards. During the upward movement of the connecting rod 19, the first wedge block 20 and the second wedge block 21 are used to push the first wedge block 20 upwards and the second wedge block 21 upwards. The inclined surface fits and drives the extrusion rod 18 to move within the third slot 13. When the extrusion rod 18 moves, one end will press against the bottom of the ejector rod 15, causing the ejector rod 15 to rise and automatically eject the mold from the forming cavity 10, thus facilitating demolding. In addition, during the next stamping, the substrate continues to be conveyed forward. The hydraulic cylinder 4 drives the upper mold base 6 to move down, causing the bottom connecting rod 19 of the C-shaped slot 8 to move down. The first wedge block 20 and the second wedge block 21 disengage. The spring 16 elastically resets and presses against the card block 17, causing the ejector rod 15 to move down and automatically reset. The upper surface of the ejector rod 15 becomes flush with the bottom wall of the forming cavity 10. When the ejector rod 15 moves down, its bottom end presses against the extrusion rod 18, causing the extrusion rod 18 to move and reset to its initial position.

[0040] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A seatbelt latch stamping forming device, comprising a machine base (1), characterized in that, The machine base (1) is provided with a lower mold base (2), and a frame (3) is provided above the lower mold base (2). A hydraulic cylinder (4) is provided on the frame (3). A piston rod (5) is installed at the output end of the hydraulic cylinder (4). An upper mold base (6) is provided on the piston rod (5). A stamping die (7) is provided on the upper mold base (6). A forming cavity (10) that cooperates with the stamping die (7) is opened on the lower mold base (2). A T-shaped locking block (9) is provided on the lower mold base (2). A C-shaped locking groove (8) is provided at one end of the upper mold base (6). The C-shaped locking groove (8) is movably locked onto the T-shaped locking block (9). The lower mold base (2) is provided with a first slot (11) and a spring slot (14). The first slot (11) is connected to the forming mold cavity (10) and the spring slot (14). A push rod (15) is movably engaged in the first slot (11). An elastic clearance component is provided in the spring slot (14) so ​​that the bottom end of the push rod (15) can move upward in the first slot (11) when it is squeezed. The C-shaped slot (8) and the push rod (15) are connected by a linkage structure. When the C-shaped slot (8) moves upward, it can drive the push rod (15) to rise upward to push out the stamped locking tongue mold in the forming mold cavity (10).

2. The seat belt latch stamping forming device according to claim 1, characterized in that, The outer dimensions of the stamping die (7) are adapted to the inner dimensions of the forming cavity (10), and the stamping die (7) is movably embedded and snapped into the inside of the forming cavity (10).

3. The seat belt latch stamping forming device according to claim 1, characterized in that, The inner dimensions of the guilloché groove (8) are adapted to the outer dimensions of the T-shaped card block (9), and the guilloché groove (8) is movably fitted and engaged on the T-shaped card block (9).

4. The seat belt latch stamping forming device according to claim 1, characterized in that, The elastic clearance assembly includes a spring (16) fixed to the top wall inside the spring groove (14) and a locking block (17) movably engaged inside the spring groove (14). The spring (16) and the locking block (17) are distributed from top to bottom, and the locking block (17) is fixed to the top rod (15).

5. The seat belt latch stamping forming device according to claim 1, characterized in that, The linkage structure includes a second slot (12) and a third slot (13) opened in the lower mold base (2). The third slot (13) is connected to the second slot (12) and the first slot (11). The bottom of the U-shaped slot (8) is provided with a connecting rod (19) that is movably engaged in the second slot (12). The third slot (13) is movably engaged with a pressing rod (18). A first wedge block (20) is provided on one side wall of the connecting rod (19) near the pressing rod (18). A second wedge block (21) is provided on one end of the pressing rod (18) near the connecting rod (19). The inclined surfaces of the first wedge block (20) and the second wedge block (21) are in contact.

6. The seat belt latch stamping forming device according to claim 5, characterized in that, The top of the top rod (15) is flat and the bottom is dome-shaped. The end of the extrusion rod (18) near the top rod (15) is dome-shaped.

7. The seat belt latch stamping forming device according to claim 1, characterized in that, The upper surfaces of the lower mold base (2) and located on both sides of the molding cavity (10) are respectively bonded with soft rubber layers.

Images