Punch forming die for automobile support

Abstract

The utility model discloses an automobile support punch forming die which comprises a shell, and a hydraulic lifting device is fixedly installed at the upper end of the interior of the shell. The two lower molds are arranged in a cavity in the lower end of the interior of the shell, the lower molds are rotationally connected with the shell through rotating shafts, and after the two lower molds are closed together, inner cavities of the two lower molds form a forming cavity of the support; the upper mold is arranged above the position between the two lower molds, and a lifting block is fixedly installed at the upper end of the upper mold; the transmission box is arranged at the rear end of the shell, a rack plate is installed in the transmission box, transmission gears are rotationally installed on the two sides of the lower end in the transmission box, a screw rod is fixedly installed at the front end of each transmission gear, and an ejector rod is installed outside each screw rod; the problem that a punch forming die cannot improve the production continuity on the premise of ensuring the punching stability according to the outer contour of the oil pipe is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile bracket processing, in particular to a stamping and forming die for an automobile bracket. Background Art

[0002] The stamping die for automobile oil pipe bracket is a special die for producing automobile oil pipe bracket. It uses the stamping process to stamp, bend, stretch and other deformations on the metal sheet through the up and down movement of the die, so as to obtain the required shape and size of the oil pipe bracket. The upper die is installed above the stamping machine, and its shape matches the outer contour of the oil pipe bracket. When the stamping machine starts working, the upper die moves downward and cooperates with the lower die to stamp the metal sheet. The lower die is installed below the stamping machine, and its shape matches the inner contour of the oil pipe bracket. When the upper die presses down, the metal sheet is deformed under the support and guidance of the lower die.

[0003] For example, the Chinese authorized patent "A high-seismic automobile bracket stamping and forming die" with announcement number CN220311450U includes a stamping machine and a forming die. The stamping machine is provided with a demoulding mechanism, and the demoulding mechanism includes a turntable, which is rotatably installed on the stamping machine, and a support assembly is provided at the bottom of the turntable, and a threaded sleeve is fixedly installed on the top of the turntable. The high-seismic automobile bracket stamping and forming die, by providing a demoulding mechanism, realizes the use of a motor as a power source and controls the rotation of the turntable through mechanical transmission, so that the rotating turntable drives the threaded sleeve to rotate synchronously, and then the threaded column connected to the internal thread of the threaded sleeve moves upward on the outer surface of the limit rod, so that the moving threaded column drives the demoulding plate to move synchronously, so as to realize the use of the upward moving demoulding plate to push out the stuck deformed metal sheet.

[0004] Although the above-mentioned prior art can be applied to the stamping forming of automobile oil pipe brackets, the forming structure is relatively simple and cannot improve production continuity while ensuring stamping stability according to the outer contour of the oil pipe. Therefore, it does not meet the existing needs. In this regard, we propose a stamping forming die for an automobile bracket. Utility Model Content

[0005] The utility model aims to provide a stamping die for an automobile bracket to solve the problem that the stamping die mentioned in the background technology cannot improve production continuity under the premise of ensuring stamping stability according to the outer contour of the oil pipe.

[0006] To achieve the above object, the utility model provides the following technical solution: a stamping die for an automobile bracket, comprising a shell, wherein a hydraulic lifting device is fixedly installed at the upper end of the shell; and further comprising:

[0007] Two lower molds are arranged in the cavity at the lower end of the shell, and the lower molds are rotatably connected to the shell through a rotating shaft. When the two lower molds are put together, their inner cavities constitute a molding cavity of the bracket;

[0008] An upper mold is arranged above the two lower molds, and the upper mold consists of a T-block and a round block. A lifting block is fixedly installed on the upper end of the upper mold, and the lower end of the hydraulic lifting device is fixed to the upper end surface of the lifting block by bolts;

[0009] A transmission box is arranged at the rear end of the shell, a rack plate is installed inside the transmission box, and the rack plate and the transmission box are slidably limited, transmission gears are rotatably installed on both sides of the lower end of the transmission box, and the transmission gears are meshed with the rack plate, a screw is fixedly installed at the front end of the transmission gear, and a push rod is installed outside the screw.

[0010] Preferably, an elastic mechanism is installed at the bottom of the inner cavity of the shell, and the arc surface at the upper end of the elastic mechanism contacts one side of the bottom of the lower mold.

[0011] Preferably, a slide groove is provided at the rear end inside the shell, a connecting rod is fixedly installed at the rear end of the lifting block, the connecting rod is slidably matched with the slide groove, and the other end of the connecting rod is fixed to the upper end of the rack plate.

[0012] Preferably, one end of the screw extends to the interior of the push rod, and the external thread of the screw is frictionally matched with the internal screw hole of the push rod, the outside of the push rod is provided with annularly distributed protrusions, and the push rod and the transmission box are slidingly limited, and the position of the push rod corresponds to the molding cavity formed by the upper mold and the lower mold.

[0013] Preferably, a conveying mechanism is provided on one side of the shell, the conveying mechanism includes a frame, and the frame and the shell are fixed by bolts, transmission rollers are rotatably installed on both sides inside the frame, a conveyor belt is installed between the transmission rollers, and a motor is installed on one side of the rear end of the frame.

[0014] Preferably, a limit plate is welded and fixed at the middle position of the other side of the inner cavity of the shell, and the limit plate corresponds to the position of the conveying mechanism.

[0015] Preferably, the front end of the shell is provided with an empty slot for the bracket to be discharged.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model adopts a one-time rapid prototyping structure of an oil pipe bracket. When the upper mold is separated from the lower mold, the two lower molds are in an open state under the support of the elastic mechanism to provide space for the entry of the upper mold. The metal sheet enters the designated position under the guidance of the conveying mechanism. By opening the hydraulic lifting device, the upper mold is driven to move downward, and the arc at the bottom thereof contacts the metal sheet first, which is bent under the action of pressure and enters the cavity between the two lower molds. After the upper mold contacts the bottom of the inner cavity of the lower mold through the metal sheet, the two lower molds are ordered to rotate with the rotating shaft as the center of the circle under the action of pressure, and the two lower molds are formed to be close together, and the metal sheet is further squeezed through the inner cavity wall. Finally, a 90-degree bend is formed at the upper end of the oil pipe bracket through the cross plate of the upper mold, thereby forming an overall stamping molding. After the bracket is ejected, as the upper mold is reset, the elastic mechanism again keeps the two lower molds in an open state. The stamping molding device can quickly realize the processing of the oil pipe bracket, overcomes the multi-step intervention of multiple stamping molds required for such a complex structure, and reduces equipment costs while improving production efficiency.

[0018] 2. The utility model adopts a linkage structure between a stamping mechanism and an ejection mechanism. When the upper mold and the lower mold are in a separated state, the ejector rod is located in the molding cavity between the lower molds. As the upper mold descends, the rack plate is driven to descend through the connecting rod, and the transmission gear equipped with the screw is driven to rotate under the meshing action. The external thread of the screw and the internal screw hole of the ejector rod form friction, and the guiding effect of the transmission box on the outer wall of the ejector rod is coordinated, so that the ejector block is continuously retracted toward the inside of the transmission box. Then, as the upper mold descends, before entering the inner cavity of the lower mold, the ejector rod has been retracted into the transmission box, and no conflict between the two is caused. After the oil pipe bracket is formed, the hydraulic lifting device drives The upper mold rises, and the rack plate also moves upward, driving the transmission gear to reverse under the meshing action. Similarly, with the cooperation of the screw and the ejector, the ejector continuously moves toward the outside of the transmission box, and contacts the formed oil pipe bracket during the movement, thereby pushing it out of the front end of the shell to achieve automatic discharge. The linkage between the stamping mechanism and the ejection mechanism can realize the automatic and continuous operation of stamping and ejection, reducing manual intervention and waiting time, thereby greatly improving production efficiency. At the same time, it can ensure the stability and accuracy of the oil pipe bracket during the stamping process, avoid deformation or damage caused by improper operation, and thus ensure the quality and precision of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model in the mold closing state;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model when the mold is in a separated state;

[0021] Figure 3It is a three-dimensional diagram of the linkage structure of the punching mechanism and the ejection mechanism of the utility model;

[0022] Figure 4 It is an overall top view of the utility model.

[0023] In the figure: 1. shell; 2. hydraulic lifting device; 3. lifting block; 4. upper mold; 5. lower mold; 6. rotating shaft; 7. elastic mechanism; 8. limit plate; 9. conveying mechanism; 10. slide; 11. connecting rod; 12. rack plate; 13. transmission gear; 14. screw; 15. push rod; 16. transmission box; 17. frame; 18. conveyor belt; 19. motor; 20. transmission roller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a stamping die for a car bracket, comprising a shell 1, a hydraulic lifting device 2 is fixedly installed on the upper end of the shell 1; and further comprising:

[0026] Two lower molds 5 are arranged in the cavity at the lower end of the housing 1, and the lower molds 5 are rotatably connected to the housing 1 via a rotating shaft 6. When the two lower molds 5 are put together, their inner cavities constitute a molding cavity of the bracket;

[0027] The upper mold 4 is arranged above the two lower molds 5, and the upper mold 4 is composed of a T-shaped block and a round block. The upper end of the upper mold 4 is fixedly mounted with a lifting block 3, and the lower end of the hydraulic lifting device 2 is fixed to the upper end surface of the lifting block 3 by bolts;

[0028] A transmission box 16 is arranged at the rear end of the housing 1, and a rack plate 12 is installed inside the transmission box 16, and the rack plate 12 and the transmission box 16 are slidably limited. Transmission gears 13 are rotatably installed on both sides of the lower end of the transmission box 16, and the transmission gear 13 is meshed and connected with the rack plate 12. A screw rod 14 is fixedly installed at the front end of the transmission gear 13, and a push rod 15 is installed outside the screw rod 14.

[0029] When the upper mold 4 and the lower mold 5 are in a separated state, the push rod 15 is located in the molding cavity between the lower mold 5. As the upper mold 4 descends, the rack plate 12 is driven to descend through the connecting rod 11, and the transmission gear 13 equipped with the screw 14 is driven to rotate under the meshing action. The external thread of the screw 14 forms friction with the internal screw hole of the push rod 15, and the guiding effect of the transmission box 16 on the outer wall of the push rod 15 causes the push rod 15 to continuously shrink toward the inside of the transmission box 16. Then, as the upper mold 4 descends, before entering the inner cavity of the lower mold 5, the push rod 15 has been shrunk into the transmission box 16, and no conflict between the two will be caused. After the oil pipe bracket is formed, the hydraulic lifting device 2 drives the upper mold 4 to rise, and the rack plate 12 also moves upward, and the meshing action drives the transmission gear 13 to reverse. Similarly, under the cooperation of the screw 14 and the push rod 15, the push rod 15 is continuously moved toward the outside of the transmission box 16, and contacts with the formed oil pipe bracket during the movement, thereby pushing it out of the front end of the shell 1 to realize automatic discharging.

[0030] See also Figure 1 and Figure 2 An elastic mechanism 7 is installed at the bottom of the inner cavity of the shell 1, and the arc surface of the upper end of the elastic mechanism 7 contacts one side of the bottom of the lower mold 5. Under the support of the elastic mechanism 7, the two lower molds 5 remain in an open state when no force is applied.

[0031] See also Figure 2 and Figure 3 A slide groove 10 is provided at the rear end of the shell 1, and a connecting rod 11 is fixedly installed at the rear end of the lifting block 3. The connecting rod 11 slides with the slide groove 10, and the other end of the connecting rod 11 is fixed to the upper end of the rack plate 12.

[0032] See also Figure 3 and Figure 4 One end of the screw rod 14 extends to the inside of the push rod 15, and the external thread of the screw rod 14 is frictionally matched with the internal screw hole of the push rod 15. The outside of the push rod 15 is provided with annularly distributed protrusions, and the push rod 15 and the transmission box 16 are slidably limited. The push rod 15 corresponds to the position of the forming cavity formed by the upper mold 4 and the lower mold 5. The linkage cooperation between the stamping mechanism and the ejection mechanism can realize the automatic continuous operation of stamping and ejection, reduce manual intervention and waiting time, thereby greatly improving production efficiency, and at the same time ensure the stability and accuracy of the oil pipe bracket during the stamping process, avoid deformation or damage caused by improper operation, thereby ensuring the quality and precision of the product.

[0033] See also Figure 4A conveying mechanism 9 is provided on one side of the shell 1, and the conveying mechanism 9 includes a frame 17, and the frame 17 is fixed to the shell 1 by bolts, and transmission rollers 20 are rotatably installed on both sides inside the frame 17, and a conveyor belt 18 is installed between the transmission rollers 20, and a motor 19 is installed on one side of the rear end of the frame 17 to realize the transportation of metal plates.

[0034] See also Figure 4 A limit plate 8 is welded and fixed at the middle position of the other side of the inner cavity of the shell 1, and the position of the limit plate 8 corresponds to the position of the conveying mechanism 9, ensuring that the metal plate can reach the set position and ensure the stamping accuracy.

[0035] See also Figure 4 The front end of the housing 1 is provided with an empty slot for the bracket to be discharged.

[0036] Working principle: When in use, when the upper mold 4 is separated from the lower mold 5, the two lower molds 5 are in an open state under the support of the elastic mechanism 7 to provide space for the entry of the upper mold 4. The metal sheet enters the designated position under the guidance of the conveying mechanism 9, and the upper mold 4 is driven to move downward by opening the hydraulic lifting device 2. The arc at its bottom contacts the metal sheet first, which is bent under the action of pressure and enters the cavity between the two lower molds 5. After the upper mold 4 contacts the bottom of the inner cavity of the lower mold 5 through the metal sheet, the two lower molds 5 are rotated with the rotating shaft 6 as the center under the action of pressure, and the two lower molds 5 are brought together, and the metal sheet is further squeezed through the inner cavity wall. Finally, a 90-degree bend is formed at the upper end of the oil pipe bracket through the cross plate of the upper mold 4, thereby forming an overall stamping molding. After the bracket is ejected, as the upper mold 4 is reset, the elastic mechanism 7 again keeps the two lower molds 5 in an open state.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A stamping die for an automobile bracket, comprising a housing (1), wherein a hydraulic lifting device (2) is fixedly mounted on the upper end of the housing (1); Features: Also includes: Two lower molds (5) are arranged in the cavity at the lower end of the housing (1), and the lower molds (5) are rotatably connected to the housing (1) via a rotating shaft (6). When the two lower molds (5) are put together, their inner cavities form a molding cavity for the bracket; An upper mold (4) is arranged above the two lower molds (5), and the upper mold (4) is composed of a T-shaped block and a round block. A lifting block (3) is fixedly installed on the upper end of the upper mold (4), and the lower end of the hydraulic lifting device (2) is fixed to the upper end surface of the lifting block (3) by bolts; A transmission box (16) is arranged at the rear end of the housing (1), a rack plate (12) is installed inside the transmission box (16), and the rack plate (12) and the transmission box (16) are slidably limited, transmission gears (13) are rotatably installed on both sides of the lower end of the transmission box (16), and the transmission gear (13) is meshingly connected with the rack plate (12), a screw rod (14) is fixedly installed at the front end of the transmission gear (13), and a push rod (15) is installed outside the screw rod (14).

2. The automobile bracket stamping die according to claim 1, characterized in that: An elastic mechanism (7) is installed at the bottom of the inner cavity of the shell (1), and the arc surface at the upper end of the elastic mechanism (7) contacts one side of the bottom of the lower mold (5).

3. The automobile bracket stamping die according to claim 1, characterized in that: A slide groove (10) is provided at the rear end of the housing (1), and a connecting rod (11) is fixedly installed at the rear end of the lifting block (3). The connecting rod (11) is slidably matched with the slide groove (10), and the other end of the connecting rod (11) is fixed to the upper end of the rack plate (12).

4. The automobile bracket stamping die according to claim 1, characterized in that: One end of the screw rod (14) extends to the interior of the push rod (15), and the external thread of the screw rod (14) is frictionally matched with the internal thread hole of the push rod (15). The outside of the push rod (15) is provided with annularly distributed protrusions, and the push rod (15) and the transmission box (16) are slidably limited. The push rod (15) corresponds to the position of the molding cavity formed by the upper mold (4) and the lower mold (5).

5. The automobile bracket stamping die according to claim 1, characterized in that: A conveying mechanism (9) is provided on one side of the housing (1), the conveying mechanism (9) comprising a frame (17), and the frame (17) and the housing (1) are fixed by bolts, transmission rollers (20) are rotatably mounted on both sides of the interior of the frame (17), a conveyor belt (18) is mounted between the transmission rollers (20), and a motor (19) is mounted on one side of the rear end of the frame (17).

6. The automobile bracket stamping die according to claim 5, characterized in that: A limiting plate (8) is welded and fixed at a middle position on the other side of the inner cavity of the shell (1), and the position of the limiting plate (8) corresponds to that of the conveying mechanism (9).

7. The automobile bracket stamping die according to claim 1, characterized in that: The front end of the housing (1) is provided with an empty slot for the bracket to be discharged.

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