Die for punching inner rib of energy absorption box of automobile

Abstract

This utility model discloses a punching die for the inner rib of an automotive energy-absorbing box, including an upper plate, a nitrogen spring, a base, an upper die holder, an upper punching die, a lower die holder, a lower punching die, a support seat, and a limiting platform. The base and support seat are fixedly installed on the lower part of the punching machine platform, and the lower die holder is fixedly installed on the support seat. There is a feeding gap between the lower die holder and the base. The upper plate is fixedly installed on the upper part of the punching machine platform, and the nitrogen spring cylinder is fixedly installed on the upper plate. This punching die extends the upper and lower die holders into both sides of the inner rib of the automotive energy-absorbing box, and then punches out notches in the inner rib of the automotive energy-absorbing box through the cooperation of the upper and lower punching dies. It has the advantages of fast feeding speed and convenient punching forming. The nitrogen spring ensures that the automotive energy-absorbing box is always pressed and fixed.

Description

Technical Field

[0001] This utility model belongs to the field of automotive energy-absorbing box processing technology, and in particular relates to an automotive energy-absorbing box. Background Technology

[0002] Automotive energy-absorbing boxes absorb most of the collision energy, effectively reducing the impact force transmitted to the rear longitudinal beams and passenger compartment. This helps maintain the structural integrity of the passenger compartment and protects the safety of passengers. The internal ribs of the energy-absorbing box increase its structural strength, and punching notches into these ribs facilitates the positioning and installation of the box. However, the internal ribs of the automotive energy-absorbing box are currently located inside the vehicle, and there is a current issue of difficulty in punching and machining these notches. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a punching die for punching the inner ribs of an automotive energy-absorbing box.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a punching die for the inner rib of an automotive energy-absorbing box, comprising an upper plate, a nitrogen spring, a base, an upper die holder, an upper punching die, a lower die holder, a lower punching die, a support seat, and a limiting platform. The base and the support seat are both fixedly installed on the lower part of the punching machine platform. The lower die holder is fixedly installed on the support seat, and there is a feeding gap between the lower die holder and the base. The upper plate is fixedly installed on the upper part of the punching machine platform. The nitrogen spring cylinder is fixedly installed on the upper plate. A pressure plate is fixedly installed on the piston rod of the nitrogen spring. A first hydraulic cylinder is also provided on the upper part of the punching machine platform. The upper plate is fixedly connected to the piston rod of the first hydraulic cylinder. The right end of the upper die holder is fixedly installed on the punching head of the punching machine. The upper punching die and the lower punching die are fixedly installed on the upper die holder and the lower die holder, respectively. The lower die holder is provided with a punching hole that cooperates with the upper punching die. The limiting platform is fixedly installed on the right end of the upper die holder. The left end of the base has a limiting block.

[0005] Preferably, a support mechanism is also included, which consists of a second hydraulic cylinder, a cylinder seat, a linear slide rail, a connecting plate, and a pad. The cylinder seat and the linear slide rail are fixedly installed on the punching machine platform. The cylinder body of the second hydraulic cylinder is fixedly installed on the cylinder seat. The pad is slidably installed on the linear slide rail. The connecting plate is fixedly installed on the pad. The piston rod of the second hydraulic cylinder is fixedly connected to the connecting plate. The edge on the left end face of the pad is set as an angled structure.

[0006] Preferably, a first connecting rod is fixedly installed at the four corners of the bottom of the upper plate, and a guide rod is fixedly installed at the bottom of the first connecting rod. A second connecting rod corresponding to the first connecting rod is fixedly installed on the punching machine platform. A guide hole is provided in the second connecting rod, and the guide rod is slidably installed in the guide hole.

[0007] Preferably, the upper die base is fixedly mounted with a pressure block, which is fixedly connected to the punching head of the punching machine.

[0008] Preferably, a positioning rod is fixedly installed on the limiting platform.

[0009] Preferably, the base has a positioning groove, and a first stop and a second stop are provided on both sides of the positioning groove. The first stop and the second stop are fixedly installed on the base.

[0010] Preferably, a spring pin is fixedly installed in the positioning groove of the base.

[0011] Compared with the prior art, the advantages of this utility model are: the upper and lower die bases of this punching die extend into both sides of the inner rib of the car energy-absorbing box, and then the upper and lower punching dies cooperate to punch out the notch in the inner rib of the car energy-absorbing box. It has the advantages of fast feeding speed and convenient punching and forming. By setting a nitrogen spring, it can ensure that the car energy-absorbing box is always pressed and fixed. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a perspective view of the front side of this utility model.

[0014] Figure 2 This is a perspective view of the rear side of this utility model.

[0015] Figure 3 This is the front view of this utility model.

[0016] Figure 4 This is a top view of the present invention.

[0017] Figure 5 yes Figure 4 A sectional view along the AA direction.

[0018] Figure 6 It is a three-dimensional view of the upper mold base and the lower mold base.

[0019] Figure 7 This is a 3D diagram of the combined structure of the upper and lower punching dies. Figure 8 It is a 3D view of the installation structure of the support mechanism.

[0020] Figure 9 This is a 3D view of the car's energy-absorbing box. Detailed Implementation

[0021] The present invention will now be described in detail with reference to specific embodiments: like Figures 1 to 8The machine includes an upper loading plate 1, a nitrogen spring 12, a base 2, an upper die holder 3, an upper punching die 31, a lower die holder 4, a lower punching die 41, a support seat 5, and a limiting platform 6. The base 2 and support seat 5 are fixedly installed on the lower part of the punching machine platform. The lower die holder 4 is fixedly installed on the support seat 5, and there is a feeding gap between the lower die holder 4 and the base 2. The upper loading plate 1 is fixedly installed on the upper part of the punching machine platform. The cylinder of the nitrogen spring 12 is fixedly installed on the upper loading plate 1. The movable part of the nitrogen spring 12... A pressure plate is fixedly installed on the piston rod. A first hydraulic cylinder is also provided on the upper part of the punching machine platform. The upper plate 1 is fixedly connected to the piston rod of the first hydraulic cylinder. The right end of the upper die base 3 is fixedly installed on the punching head of the punching machine. The upper punching die 31 and the lower punching die 41 are fixedly installed on the upper die base 3 and the lower die base 4. The lower die base 4 is provided with a punching hole 410 that cooperates with the upper punching die 31. The limiting platform 6 is fixedly installed on the right end of the upper die base 3. The left end of the base 2 has a limiting block 21.

[0022] It also includes a support mechanism, which consists of a second hydraulic cylinder 7, a cylinder seat 71, a linear slide rail 72, a connecting plate 73, and a pad 74. The cylinder seat 71 and the linear slide rail 72 are fixedly installed on the punching machine platform. The cylinder body of the second hydraulic cylinder 7 is fixedly installed on the cylinder seat 71. The pad 74 is slidably installed on the linear slide rail 72. The connecting plate 73 is fixedly installed on the pad 74. The piston rod of the second hydraulic cylinder 7 is fixedly connected to the connecting plate 73. The edge on the left end face of the pad 74 is set with an angled structure. When the car energy-absorbing box 10 is loaded, the piston rod of the third hydraulic cylinder 7 retracts, causing the combination of the connecting plate 73 and the pad 74 to move away from the linear slide rail 72, leaving a loading area for the car energy-absorbing box 10. After the car energy-absorbing box 10 is loaded, the piston rod of the third hydraulic cylinder 7 extends, pushing the pad 74 to a position directly below the lower die base 4. The pad 74 supports the left end of the lower die base 4, preventing the lower die base 4 from tilting during the inner rib punching process.

[0023] The upper plate 1 is fixedly mounted with first connecting rods 13 at its four bottom corners. Guide rods are fixedly mounted at the bottom of the first connecting rods 13. A second connecting rod 14 corresponding to the first connecting rod 13 is fixedly mounted on the punching machine platform. A guide hole is provided in the second connecting rod 14, and the guide rod is slidably installed in the guide hole. Through the guiding effect of the guide rod and the guide hole, the straightness of the pressure plate 11 when moving up and down can be improved. After the first connecting rod 13 and the second connecting rod 14 contact and limit the position, the downward movement limit of the pressure plate 11 can be restricted.

[0024] The upper mold base 3 is fixedly equipped with a pressure block 15, which is fixedly connected to the punching head of the punching machine.

[0025] The upper die base 3 is fixedly equipped with a pressure block 15, which is fixedly connected to the punching head of the punching machine to ensure the downward pressure balance at both ends of the upper die base 3 and to prevent the upper die base 3 from tilting during the downward pressing process.

[0026] A positioning rod 61 is fixedly installed on the limiting platform 6. The positioning rod 61 is screwed and fixedly installed on the limiting platform 6. The limiting position of the positioning rod 61 can be rotated and adjusted.

[0027] The base 2 has a positioning groove, and a first stop and a second stop are located on both sides of the positioning groove. Both the first and second stops are fixedly installed on the base 2. The entrance end of the first stop has an angled structure. An elastic pin is fixedly installed in the positioning groove of the base 2 to guide the lower part of the automotive energy-absorbing box 10 into the positioning groove. The automotive energy-absorbing box 10 is pressed into the positioning groove by the pressure rod of the nitrogen spring 12, achieving a positioning function and improving the punching accuracy of the notch 102. The elastic pin is fully pressed into the base 2, and the automotive energy-absorbing box 10 is placed on the bottom surface of the positioning groove. After the punching process is completed, the pressure rod of the nitrogen spring 12 releases the pressure on the automotive energy-absorbing box 10, and the elastic pin pushes the automotive energy-absorbing box 10 out of the positioning groove for easy unloading.

[0028] First, the car energy-absorbing box 10 is loaded onto the upper mold base 3 and the lower mold base 4. The inner rib of the car energy-absorbing box 10 is located between the upper mold base 3 and the lower mold base 4. The bottom surface of the inner rib of the car energy-absorbing box 10 is placed on the lower punching die 41. The piston rod of the first hydraulic cylinder extends and pushes the upper plate 1 downward. The piston rod of the nitrogen spring 12 pushes the pressure plate to contact the top surface of the car energy-absorbing box 10 and presses it tightly. The punching head of the punching machine pushes the mold base 3 and the upper punching die 31 downward. The upper punching die 31 and the lower punching die 41 cooperate to punch a notch 102 in the inner rib 101 of the car energy-absorbing box 10.

Claims

1. A die for punching the inner ribs of an automotive energy-absorbing box, characterized in that: The machine includes an upper loading plate (1), a nitrogen spring (12), a base (2), an upper die holder (3), an upper punching die (31), a lower die holder (4), a lower punching die (41), a support seat (5), and a limiting platform (6). The base (2) and the support seat (5) are fixedly installed on the lower part of the punching machine platform. The lower die holder (4) is fixedly installed on the support seat (5). There is a feeding gap between the lower die holder (4) and the base (2). The upper loading plate (1) is fixedly installed on the upper part of the punching machine platform. The cylinder of the nitrogen spring (12) is fixedly installed on the upper loading plate (1). 2) A pressure plate is fixedly installed on the piston rod. A first hydraulic cylinder is also provided on the upper part of the punching machine platform. The upper plate (1) is fixedly connected to the piston rod of the first hydraulic cylinder. The right end of the upper die seat (3) is fixedly installed on the punching head of the punching machine. The upper punching die (31) and the lower punching die (41) are fixedly installed on the upper die seat (3) and the lower die seat (4). The lower die seat (4) is provided with a punching hole (410) that cooperates with the upper punching die (31). The limiting platform (6) is fixedly installed on the right end of the upper die seat (3). The left end of the base (2) has a limiting block (21).

2. The automotive energy-absorbing box inner rib punching die according to claim 1, characterized in that: It also includes a support mechanism, which consists of a second hydraulic cylinder (7), a cylinder seat (71), a linear slide rail (72), a connecting plate (73), and a pad (74). The cylinder seat (71) and the linear slide rail (72) are fixedly installed on the punching machine platform. The cylinder body of the second hydraulic cylinder (7) is fixedly installed on the cylinder seat (71). The pad (74) is slidably installed on the linear slide rail (72). The connecting plate (73) is fixedly installed on the pad (74). The piston rod of the second hydraulic cylinder (7) is fixedly connected to the connecting plate (73). The edge on the left end face of the pad (74) is set as an angled structure.

3. The automotive energy-absorbing box inner rib punching die according to claim 1, characterized in that: The upper plate (1) has a first connecting rod (13) fixedly installed at the four corners of its bottom. A guide rod is fixedly installed at the bottom of the first connecting rod (13). A second connecting rod (14) corresponding to the first connecting rod (13) is fixedly installed on the punching machine platform. A guide hole is provided in the second connecting rod (14), and the guide rod is slidably installed in the guide hole.

4. The automotive energy-absorbing box inner rib punching die according to claim 1, characterized in that: The upper mold base (3) is fixedly equipped with a pressure block (15), which is fixedly connected to the punching head of the punching machine.

5. The automotive energy-absorbing box inner rib punching die according to claim 1, characterized in that: A positioning rod (61) is fixedly installed on the limiting platform (6).

6. The automotive energy-absorbing box inner rib punching die according to claim 1, characterized in that: The base (2) has a positioning groove, and a first stop and a second stop are located on both sides of the positioning groove. The first stop and the second stop are fixedly installed on the base (2).

7. The automotive energy-absorbing box inner rib punching die according to claim 6, characterized in that: An elastic pin is fixedly installed in the positioning groove of the base (2).

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