Automobile floor longitudinal beam drawing die

Abstract

A drawing die for a longitudinal beam of an automobile floor, wherein a lower supporting die core is provided in the middle of a lower die seat along its length direction, a die hole is provided in the middle of a drawing die frame along its length direction, the die hole is slidably sleeved on the lower supporting die core, lower drawing die cores are provided on both sides of a die hole port, and a plurality of limit pins are evenly provided on the outer side of the lower drawing die core, a supporting spring is provided between the drawing die frame and the lower die seat, and a material inlet and outlet bracket is provided on the outer side surface of the drawing die frame; a die cavity is provided in the middle of an upper die seat, an upper supporting die core is fixedly installed in the die cavity, and upper drawing die cores are provided on both sides of the upper supporting die core; a trapezoidal groove on the upper die seat of the die can be slidably sleeved on a trapezoidal guide platform when the die is closed, so as to form a positioning guide between the drawing die frame and the upper die seat, and a precise sliding guide system is formed in combination with a square guide platform and a square groove between the die seat and the die frame, so as to improve the drawing accuracy of the workpiece and effectively avoid the phenomenon that the workpiece is pulled and cracked.

Description

Technical Field

[0001] The utility model relates to the field of automobile molds, in particular to a drawing mold for an automobile floor longitudinal beam. Background Art

[0002] The longitudinal beams of automobile floors are usually made of high-strength steel to support the weight of the vehicle body and provide structural strength to ensure the stability and safety of the vehicle during driving. When the vehicle collides, the longitudinal beams can absorb and disperse the impact force to protect passengers and pedestrians from injury. At the same time, in daily driving, the longitudinal beams can also stabilize the vehicle body and support the suspension system.

[0003] Automobile floor longitudinal beams are usually stamped from low-alloy steel plates, and their cross-sectional shape is generally groove-shaped. Depending on the different types of automobiles and the requirements of the structural layout, the longitudinal beams can be curved in the horizontal plane or the longitudinal plane, and can have equal or non-equal cross-sections. Therefore, a drawing process is required during the stamping process of the floor longitudinal beams to meet their shape requirements. However, due to the large overall size of the floor longitudinal beams, the drawing range is large, and the reaction force generated is large, which makes it easy for the upper and lower molds to have position deviations when closing the mold, affecting the mold closing accuracy and drawing quality. In addition, the large size of the longitudinal beams leads to their own large weight, which is not conducive to workers' transfer operations during loading and unloading, and needs to be improved. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a drawing die for a longitudinal beam of an automobile floor.

[0005] The technical scheme of the utility model is: a drawing die for a longitudinal beam of an automobile floor, comprising an upper die seat, a lower die seat and a drawing die frame, a lower supporting die core is arranged in the middle of the lower die seat along its length direction, a die hole is arranged in the middle of the drawing die frame along its length direction, the die hole is slidably sleeved on the lower supporting die core, lower drawing die cores are arranged on both sides of the die hole port, the inner side surface of the lower drawing die core is slidably fitted with the outer side surface of the lower supporting die core, and a plurality of limit pins are evenly arranged on the outer side of the lower drawing die core, the inner side surface of the limit pin is a sliding inclined surface, a supporting spring is arranged between the drawing die frame and the lower die seat, a plurality of supporting springs are seal-distributed between the drawing die frame and the lower die seat, and a material inlet and outlet bracket is arranged on the outer side surface of the drawing die frame; a die cavity is arranged in the middle of the upper die seat, an upper supporting die core is fixedly installed in the die cavity, and upper drawing die cores are arranged on both sides of the upper supporting die core.

[0006] Preferably, the feed and discharge bracket includes a support rod, a column and a support, the support is fixedly connected to the outer side surface of the drawing die frame, the outer end of the support is provided with a square sliding sleeve, the column is vertically matched and sleeved in the square sliding sleeve, can slide up and down in the square sliding sleeve, and a top screw is provided on the square sliding sleeve, the outer end of the top screw is provided with a manual handle, the support rod is transversely fixedly connected to the upper end of the column, and the outer end of the support rod is provided with a bending section downward.

[0007] Preferably, trapezoidal guide platforms are provided on both sides of the surface of one end of the drawing die frame, and a trapezoidal groove is provided at a corresponding position on the surface of the upper die seat, the size of the trapezoidal groove matches the size of the trapezoidal guide platform, a lower slider is provided on the side of the guide platform, and an upper slider is provided on the side of the trapezoidal groove accordingly.

[0008] Preferably, a square groove A is provided at the end of the lower die seat, and a square guide platform A is correspondingly provided at the end of the drawing die frame. The square guide platform A can slide into the square groove A to form a sliding pair. A square groove B is provided in the square guide platform A, and a square guide platform B is correspondingly provided at the end of the upper die seat. The square guide platform B can slide into the square groove B to form a sliding pair.

[0009] Preferably, a guide column is vertically provided on the edge of the lower die seat, a sliding sleeve is provided at a corresponding position on the drawing die frame, the guide column is slidably connected in the sliding sleeve, and a through hole is correspondingly provided on the upper edge of the drawing die frame.

[0010] Preferably, a plurality of circular lower gaskets are evenly arranged on the drawing die frame outside the lower drawing die core, and a circular upper gasket is arranged at a corresponding position on the upper die seat.

[0011] Preferably, the four corners of the lower die base are hinged with supporting square tubes, which can be supported on the end surface of the lower die base after rotation, and a transport connecting piece is provided at the hinge of the supporting square tube.

[0012] The beneficial technical effects of the utility model are:

[0013] (1) The trapezoidal groove on the upper die base of the mold can be slidably inserted into the trapezoidal guide platform when the mold is closed, forming a positioning guide between the drawing die frame and the upper die base. Combined with the square guide platform and square groove between the die base and the die frame, a precise sliding guide system is formed, which improves the drawing accuracy of the workpiece and effectively avoids the phenomenon of the workpiece being scratched and cracked.

[0014] (2) The transverse support rod on the center loading and unloading bracket of the mold is used to provide sliding support for the workpiece when the workpiece is placed into or taken out of the mold core. The height of the support rod can be adjusted according to the height of different workers. Workers can load and unload the workpiece more easily, which is conducive to improving efficiency and ensuring quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the lower die base and its components;

[0017] Figure 3 yes Figure 2 A partial enlarged view of

[0018] Figure 4 A schematic diagram of the three-dimensional structure of the upper die base and its components;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the drawing die frame and its components.

[0020] In the figure, 01. upper die base, 11. upper supporting die core, 12. upper drawing die core, 13. upper gasket, 02. lower die base, 21. lower supporting die core, 23. guide column, 24. supporting square tube, 03. drawing die frame, 31. die hole, 32. lower drawing die core, 33. limit pin, 34. sliding sleeve, 35. lower gasket, 04. inlet and outlet bracket, 41. support rod, 411. bending section, 42. column, 43. support, 431. square sliding sleeve, 44. top screw, 51. trapezoidal guide platform, 52. trapezoidal groove, 53. lower slider, 54. upper slider, 61. square groove A, 62. square guide platform A, 63. square groove B, 64. square guide platform B. DETAILED DESCRIPTION

[0021] Example 1, see the attached specification Figure 1-2 4-5, a drawing die for a longitudinal beam of an automobile floor, comprising an upper die seat 01, a lower die seat 02 and a drawing die frame 03, wherein a lower supporting die core 21 is arranged in the middle of the lower die seat 02 along its length direction, and the lower supporting die core 21 is a fixed die core, which is in a fixed state during die closing and stamping, and a die hole 31 is arranged in the middle of the drawing die frame 03 along its length direction, and the die hole 31 is slidably mounted on the lower supporting die core 21, and lower drawing die cores 32 are arranged on both sides of the die hole 31 port, and the lower drawing die core 32 is pressed relative to the lower supporting die core 2 1 moves downward to draw the workpiece, and a number of limit pins 33 are evenly arranged on the outer side of the lower drawing die core 32. These limit pins 33 support the edge of the workpiece to limit it to the accurate drawing position. A support spring is arranged between the drawing die frame 03 and the lower die base 02. After the drawing die core is pressed, the support spring is compressed. After the die is closed and stamped, the support spring drives it to reset. A die cavity is arranged in the middle of the upper die base 01, and an upper support die core 11 is fixedly installed in the die cavity. Upper drawing die cores 12 are arranged on both sides of the upper support die core 11.

[0022] Trapezoidal guide platforms 51 are provided on both sides of the surface of one end of the drawing die frame 03, a trapezoidal groove 52 is provided at the corresponding position of the surface of the upper die base 01, a lower slider 53 is provided on the side of the guide platform, and an upper slider 54 is provided on the side of the trapezoidal groove 52. The trapezoidal groove 52 on the upper die base 01 can be slidably inserted into the trapezoidal guide platform 51 when the mold is closed, so as to form a positioning guide between the drawing die frame 03 and the upper die base 01; a square groove A 61 is provided at the end of the lower die base 02, and a square guide platform A 62 is provided at the end of the drawing die frame 03, and a square groove B 63 is provided in the square guide platform A 62, and a square guide platform B 64 is provided at the end of the upper die base 01. The square groove and the square guide platform between the die base and the die frame form a two-level guide mechanism, which can form a combined guide between the two die bases and the die frame when the mold is closed. Combined with the trapezoidal groove 52 and the trapezoidal guide platform 51, a precise sliding guide system is formed in the mold, which improves the drawing accuracy of the workpiece and effectively avoids the phenomenon of the workpiece being pulled and cracked.

[0023] A guide column 23 is vertically provided on the edge of the lower die base 02, and a sliding sleeve 34 is provided at the corresponding position on the drawing die frame 03. The guide column 23 is slidably connected in the sliding sleeve 34. When the drawing die frame 03 is compressed downward for drawing, the guide column 23 slides relative to the sliding sleeve 34 to provide guiding support for the drawing die frame 03, thereby improving its stability and facilitating improving the drawing quality.

[0024] A plurality of lower gaskets 35 are evenly arranged on the drawing die frame 03 outside the lower drawing die core 32, and an upper gasket 13 is arranged at a corresponding position on the upper die base 01. When the mold is closed and stamped, the upper gasket 13 is pressed on the lower gasket 35 to provide limiting support for the mold closing around the mold core.

[0025] The four corners of the lower mold base 02 are hinged with supporting square tubes 24, which can be supported on the end surface of the lower mold base 02 after rotation. The mold is supported between the mold bases by the supporting square tubes 24 in an idle state to prevent the pressure of the mold base from damaging the mold core.

[0026] When the mold is working, the workpiece is placed on the mold core in the middle of the lower mold base 02, and the limit pins 33 around the mold core support the edge of the workpiece to limit it to the accurate drawing position, driving the upper mold base 01 to move downward, and the upper drawing mold core 12 in the upper mold base 01 presses the edge of the workpiece onto the lower drawing mold core 32 in the lower mold base 02, and compresses the drawing mold frame 03 inward, and the lower support mold core 21 supports the middle of the workpiece, and the edge of the workpiece is drawn downward. When the upper support mold core 11 presses the workpiece, the drawing is completed, and then the upper mold base 01 is driven to move upward to leave the workpiece and take the workpiece out of the mold core; and in the process of drawing, the trapezoidal groove 52 on the upper mold base 01 can be slidably inserted into the trapezoidal guide platform 51, forming a positioning guide between the drawing mold frame 03 and the upper mold base 01, combined with the square guide platform and square groove between the mold base and the mold frame, a precise sliding guide system is formed, which can effectively improve the drawing accuracy of the workpiece.

[0027] Example 2, see the attached specification Figure 1-3 On the basis of the first embodiment, this embodiment is provided with a feed-in / out bracket 04 on the outer side of the drawing die frame 03, and the feed-in / out bracket 04 comprises a support rod 41, a column 42 and a support 43, the support 43 is fixedly connected to the outer side of the drawing die frame 03, a square sleeve 431 is provided at the outer end of the support 43, the support rod 41 is vertically matched and sleeved in the square sleeve 431, the column 42 can adjust the height in the square sleeve 431, and a top screw 44 is provided on the square sleeve 431, which is locked by the top screw 44 after the height adjustment, the support rod 41 is transversely fixed to the upper end of the column 42, and the outer end of the support rod 41 is downwardly provided with a bending section 411, and the bending section 411 provides a sliding guide for the workpiece to enter the support rod 41, so that it can slide smoothly onto the support rod 41.

[0028] When the mold is closed to delay the workpiece, the transverse support rod 41 on the feed and discharge bracket 04 is used to provide sliding support for the workpiece. Workers can put it into the mold core or take it out from the mold core with less effort, and the height of the support rod 41 can be adjusted according to the height of different workers to make it in the best sliding support position. Therefore, workers can load and unload the workpiece more easily, which is conducive to improving efficiency and ensuring quality.

Claims

1. A drawing die for a longitudinal beam of an automobile floor, characterized by: It includes an upper die base, a lower die base and a drawing die frame. A lower supporting die core is provided in the middle of the lower die base along its length direction. A die hole is provided in the middle of the drawing die frame along its length direction. The die hole is slidably mounted on the lower supporting die core. Lower drawing die cores are provided on both sides of the die hole port, and a number of limit pins are evenly provided on the outer side of the lower drawing die core. A supporting spring is provided between the drawing die frame and the lower die base, and a material inlet and outlet bracket is provided on the outer side of the drawing die frame. A die cavity is provided in the middle of the upper die base, and an upper supporting die core is fixedly installed in the die cavity. Upper drawing die cores are provided on both sides of the upper supporting die core.

2. The automobile floor longitudinal beam drawing die according to claim 1, characterized in that: The feeding and discharging bracket includes a support rod, a column and a support. The support is fixedly connected to the outer side of the drawing die frame. The outer end of the support is provided with a square sliding sleeve. The column is vertically matched and sleeved in the square sliding sleeve, and a top screw is provided on the square sliding sleeve. The support rod is transversely fixedly connected to the upper end of the column, and the outer end of the support rod is provided with a bending section downward.

3. The automobile floor longitudinal beam drawing die according to claim 1, characterized in that: Trapezoidal guide platforms are provided on both sides of the surface of one end of the drawing die frame, a trapezoidal groove is provided at a corresponding position on the surface of the upper die seat, a lower slider is provided on the side of the guide platform, and an upper slider is provided on the side of the trapezoidal groove.

4. The automobile floor longitudinal beam drawing die according to claim 3, characterized in that: The end of the lower die seat is provided with a square groove A, the end of the drawing die frame is correspondingly provided with a square guide platform A, a square groove B is provided inside the square guide platform A, and the end of the upper die seat is correspondingly provided with a square guide platform B.

5. The automobile floor longitudinal beam drawing die according to claim 1, characterized in that: A guide column is vertically arranged on the edge of the lower die seat, and a sliding sleeve is arranged at a corresponding position on the drawing die frame, and the guide column is slidably connected in the sliding sleeve.

6. The automobile floor longitudinal beam drawing die according to claim 1, characterized in that: A plurality of lower gaskets are evenly arranged on the drawing die frame outside the lower drawing die core, and upper gaskets are arranged at corresponding positions on the upper die seat.

7. The automobile floor longitudinal beam drawing die according to claim 1, characterized in that: The four corners of the lower die seat are all hinged with supporting square tubes, and the supporting square tubes can be supported on the end surface of the lower die seat after rotation.

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