A type of anti-deviation automotive brake base plate mold

Abstract

This utility model relates to an anti-deviation automotive brake base plate mold, belonging to the field of mold technology. The anti-deviation automotive brake base plate mold includes: an upper stamping seat and a lower stamping seat, with an upper die and a lower die respectively installed inside the upper and lower stamping seats; a limiting mechanism, which includes multiple adjusting rods hinged to both sides of the upper die, a limiting roller between every two adjusting rods, and a fixed rod fixedly connected between the two adjusting rods. A first cylinder is provided between the fixed rod and one end of the upper die. By setting adjusting rods on both sides of the upper die in conjunction with limiting rollers, the coil material on the lower stamping seat is limited as the upper die presses, thereby preventing the coil material from deviating during stamping, thus improving production efficiency and product quality, and reducing material waste. Simultaneously, as the adjusting rods unfold, the first cylinder gradually applies pressure to the platen through the limiting rollers, thereby increasing the stability of the coil material during stamping.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an anti-deviation automobile brake base plate mold. Background Technology

[0002] The automotive brake backplate is the core load-bearing frame of the drum brake, fixed to the axle and supporting the brake shoe assembly, and must withstand the braking torque of the entire vehicle. Its mold is a high-precision progressive stamping die, and anti-offset design is the core requirement of the mold: offset can cause local thinning and cracking of the material, misalignment of mounting holes, and deviation of the brake shoe movement trajectory, thus leading to processing accidents. Therefore, an anti-offset automotive brake backplate mold is required.

[0003] Traditional automotive brake base plate molds mainly use guide rods and guide shells between the upper and lower molds. The guide rods move within the guide shells to prevent the upper and lower molds from shifting. This method can only prevent the position between the upper and lower dies from shifting. However, when the die presses the coil, the surface of the coil may be uneven, causing the coil to shift during the pressing process, resulting in waste of the coil. Utility Model Content

[0004] Therefore, it is necessary to provide an anti-deviation automotive brake base plate mold to address the problem that traditional devices cannot prevent the roll material from shifting.

[0005] An anti-deviation automotive brake base plate mold includes: an upper stamping seat and a lower stamping seat, wherein an upper die and a lower die are respectively installed inside the upper stamping seat and the lower stamping seat; The limiting mechanism includes multiple adjusting rods hinged to both sides of the upper mold, a limiting roller is provided between every two adjusting rods, a fixing rod is fixedly connected between the two adjusting rods, and a first cylinder is provided between the fixing rod and one end of the upper mold.

[0006] In one embodiment, a plurality of the adjusting rods are respectively disposed at the four corners of the upper mold, and the limiting roller is rotatably connected between two adjusting rods located at the same end of the upper mold, with the adjusting rods at both ends of the upper mold being mirror images of each other.

[0007] In one embodiment, the cross-section of the adjusting rod is arc-shaped, and two rotating rings are rotatably connected to the surface of the fixed rod. The movable end of the first cylinder is fixedly connected to the rotating rings, and the end of the first cylinder away from the rotating rings is hinged to one end of the upper mold.

[0008] In one embodiment, the inner walls of both ends of the upper mold are fixedly connected to a second cylinder, the second cylinder is disposed between two first cylinders, and the two ends of the second cylinder are respectively connected to the two first cylinders.

[0009] In one embodiment, a telescopic rod is provided between the lower die and the inner wall of the lower stamping seat, the top end of the telescopic rod penetrating the lower die and flush with the bottom surface of the lower die.

[0010] In one embodiment, a spring is provided inside the telescopic rod, and the two ends of the spring are fixedly connected to the telescopic end of the telescopic rod and the inner wall of the fixed top end, respectively.

[0011] In one embodiment, guide rods are fixedly connected to the four corners of the lower surface of the upper stamping seat, and guide shells are fixedly connected to the four corners of the upper surface of the lower stamping seat.

[0012] In one embodiment, the bottom end of the guide rod is disposed inside the guide housing, and the guide rod is slidably connected to the inner wall of the guide housing.

[0013] Beneficial effects 1. By setting adjusting rods on both sides of the upper die and cooperating with limiting rollers, the coil material on the lower stamping seat is limited as the upper die presses, thereby preventing the coil material from shifting during stamping, thus improving production efficiency and product quality and reducing material waste. At the same time, as the adjusting rods unfold, the first cylinder gradually applies pressure to the plate through the limiting rollers, thereby increasing the stability of the coil material at the moment of stamping. 2. By setting a telescopic rod between the lower die and the lower stamping seat, and aligning the top of the telescopic rod with the bottom of the lower die, the roll material is ejected by the spring force after the upper and lower dies are closed, thus facilitating the collection of the roll material by the workers. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation of the limiting mechanism of this utility model; Figure 3 This is a schematic diagram of the overall structure of the limiting mechanism of this utility model; Figure 4 This is a cross-sectional view of the limiting mechanism of this utility model; Figure 5 This is a schematic diagram of the installation of the telescopic rod of this utility model.

[0016] Figure label: 100. Lower die; 110. Lower stamping seat; 200. Upper die; 210. Upper stamping seat; 300. Guide rod; 310. Guide shell; 400. Limiting mechanism; 410. Limiting roller; 420. Adjusting rod; 430. Fixing rod; 431. Rotary ring; 440. First cylinder; 450. Second cylinder; 460. Telescopic rod; 461. Ejection spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined Figure 1 - Figure 5 This invention describes an anti-deviation automotive brake base plate mold.

[0019] In one embodiment, an anti-deviation automotive brake base plate mold includes: an upper stamping seat 210 and a lower stamping seat 110, with an upper die 200 and a lower die 100 respectively installed inside the upper stamping seat 210 and the lower stamping seat 110. The limiting mechanism 400 includes multiple adjusting rods 420 hinged to both sides of the upper mold 200. A limiting roller 410 is provided between every two adjusting rods 420. A fixing rod 430 is fixedly connected between two adjusting rods 420. A first cylinder 440 is provided between the fixing rod 430 and one end of the upper mold 200.

[0020] Before using this device, the lower die 100 needs to be installed on the worktable of the stamping area, and the upper die 200 needs to be connected to the stamping mechanism. The roll material needs to be passed through the surface of the lower stamping seat 110, and a waste collection mechanism is set at the other end of the lower stamping seat 110 to collect the waste roll material. The upper die 200 protrudes from the lower surface of the upper stamping seat 210, while the lower die 100 is embedded in the inner wall of the lower stamping seat 110. Therefore, the upper surface of the lower die 100 is flush with the upper surface of the lower stamping seat 110.

[0021] like Figure 2 , Figure 3 and Figure 4As shown, multiple adjusting rods 420 are respectively disposed at the four corners of the upper mold 200. A limiting roller 410 is rotatably connected between two adjusting rods 420 located at the same end of the upper mold 200. The adjusting rods 420 at both ends of the upper mold 200 are mirror-image positioned. The cross-section of the adjusting rod 420 is arc-shaped. Two rotating rings 431 are rotatably connected to the surface of the fixed rod 430. The movable end of the first cylinder 440 is fixedly connected to the rotating ring 431, and the end of the first cylinder 440 away from the rotating ring 431 is hinged to one end of the upper mold 200. A second cylinder 450 is fixedly connected to the inner walls of both ends of the upper mold 200. The second cylinder 450 is disposed between the two first cylinders 440, and both ends of the second cylinder 450 are respectively connected to the two first cylinders 440.

[0022] In this embodiment, a piston is provided inside the first cylinder 440 and a return spring is fixedly connected between the piston and the inner bottom wall of the cylinder. One end of the piston passes through the first cylinder 440 and is fixedly connected to the rotating ring 431. A center block is fixedly connected to the center of the inner wall of the second cylinder 450. Corresponding pistons are provided on both sides of the center block. A return spring is provided between the two pistons and the center block. At the same time, the medium that interacts in the multiple cylinders is hydraulic oil. When the two sets of adjusting rods 420 unfold to the sides of the upper mold 200 respectively, the fixing rod 430 will rotate accordingly. At this time, the piston of the first cylinder 440 rotates with the rotating ring 431, and the cylinder end of the first cylinder 440 rotates along the inner wall of the upper mold 200. The fixing rod 430 pushes the piston and compresses the hydraulic oil and corresponding return spring in the first cylinder 440. At this time, the fixing rod 430 is pushed by the pressure of the cylinder, and a downward thrust is applied to the fixing rod 430. This causes the limiting roller 410 to apply pressure to the roll material through the adjusting rod 420. When the hydraulic oil in the first cylinder 440 is pushed by the piston, it will flow into the second cylinder 450, thereby pushing the pistons at both ends of the second cylinder 450 to compress the corresponding return springs. The pressure in all three cylinders increases simultaneously. As the stamping process ends, the upper die 200 resets, the limiting roller 410 resets under gravity, and the piston in the first cylinder 440 loses the thrust from the fixed rod 430. At this time, the reset spring in the first cylinder 440 resets, pushing the corresponding piston and reducing the pressure in the first cylinder 440. This results in the pressure in the second cylinder 450 being greater than that in the first cylinder 450. At this time, the hydraulic oil flows back into the first cylinder 440, thus returning multiple cylinders to their initial state. Since the coil material deforms at the die-closing position during stamping, and since the limiting roller 410 is rotatably connected to the two adjusting rods 420, the coil material can still move from the surface of the limiting roller 410 and the lower stamping seat 110, thereby preventing excessive tension of the coil material from causing damage. It should be noted that this device limits the lateral movement of the roll material by setting limiting mechanisms 400 at both ends of the upper die 200, preventing it from deviating and causing errors in the shape of the stamped base plate. At the same time, since the limiting mechanisms 400 of this device are installed on both sides of the upper die 200, the limiting mechanisms 400 of this device will not affect the installation of other components in the stamping device. Furthermore, since the limiting mechanisms 400 of this device only achieve the limiting effect by applying pressure to the roll material, they will not affect the stamping process.

[0023] like Figure 1 , Figure 2 and Figure 5 As shown, a telescopic rod 460 is provided between the inner wall of the lower die 100 and the lower stamping seat 110. The top end of the telescopic rod 460 penetrates the lower die 100 and is flush with the bottom surface of the lower die 100. An ejector spring 461 is provided inside the telescopic rod 460, and the two ends of the ejector spring 461 are fixedly connected to the telescopic end of the telescopic rod 460 and the inner wall of the fixed top end, respectively. Guide rods 300 are fixedly connected to the four corners of the lower surface of the upper stamping seat 210, and guide shells 310 are fixedly connected to the four corners of the upper surface of the lower stamping seat 110. The bottom end of the guide rod 300 is located inside the guide shell 310, and the guide rod 300 is slidably connected to the inner wall of the guide shell 310.

[0024] In this embodiment, when the telescopic rod 460 is not subjected to external force, its top end is in the state of ejecting the bottom of the lower die 100. When the upper die 200 carries the coil material into the lower die 100 for stamping, it will simultaneously press it into the groove set in the bottom wall of the lower die 100. At this time, the telescopic rod 460 will compress the ejection spring 461 inside it to make it retracted. The top end of the telescopic rod 460 matches the height of the groove, so it will not affect the stamping of the coil material. At this time, the bottom of the lower die 100 is in a flat state, and the coil material is stamped and formed. When the upper die 200 is reset, the spring is released and drives the top end of the telescopic rod 460 to reset, thereby pushing out the formed bottom plate, thus completing the ejection operation. Working principle: Install the lower die 100 of this device onto the processing table, then connect the upper die 200 to the external stamping mechanism, so that the roll material passes through the surface of the lower stamping seat 110, and then start the device; After the device is started, the stamping mechanism will drive the upper stamping seat 210 to rise and fall repeatedly, so that the upper die 200 and the lower die 100 close together to stamp the coil into a brake base plate. During the process of the upper die 200 moving to the lower die 100, when the upper die 200 approaches the lower die 100, the limiting rollers 410 on both sides of the upper die 200 will first contact the coil. As the upper die 200 descends, the two limiting rollers 410 at both ends of the upper die 200 will roll along the coil to the sides of the lower stamping seat 110 and drive the two sets of adjusting rods 420 to unfold. At the same time as the adjusting rods 420 unfold, they will also push the piston of the first cylinder 440 through the fixed rod 430, thereby compressing the piston in the first cylinder 440. The air pressure in the first cylinder 440 will apply pressure to the two adjusting rods 420 through the fixed rod 430. The coil is pressed by the weight of the limiting rollers 410 themselves and the pressure applied by the first cylinder 440 to prevent the coil from shifting laterally, thereby preventing the coil from shifting position.

[0025] It should be noted that the upper mold 200, lower mold 100, guide rod 300, guide shell 310, first cylinder 440 and second cylinder 450 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mold for an anti-deviation automotive brake base plate, characterized in that, include: The upper stamping seat (210) and the lower stamping seat (110) are respectively equipped with an upper die (200) and a lower die (100). The limiting mechanism (400) includes multiple adjusting rods (420) hinged to both sides of the upper mold (200), a limiting roller (410) is provided between every two adjusting rods (420), a fixing rod (430) is fixedly connected between the two adjusting rods (420), and a first cylinder (440) is provided between the fixing rod (430) and one end of the upper mold (200).

2. The anti-deviation automotive brake base plate mold according to claim 1, characterized in that, Multiple adjusting rods (420) are respectively disposed at the four corners of the upper mold (200). The limiting roller (410) is rotatably connected between two adjusting rods (420) located at the same end of the upper mold (200). The adjusting rods (420) located at both ends of the upper mold (200) are arranged in a mirror image.

3. The anti-deviation automotive brake base plate mold according to claim 2, characterized in that, The cross-section of the adjusting rod (420) is arc-shaped, and the surface of the fixed rod (430) is rotatably connected to two rotating rings (431). The movable end of the first cylinder (440) is fixedly connected to the rotating rings (431), and the end of the first cylinder (440) away from the rotating rings (431) is hinged to one end of the upper mold (200).

4. The anti-deviation automotive brake base plate mold according to claim 3, characterized in that, The upper mold (200) has a second cylinder (450) fixedly connected to the inner walls of both ends. The second cylinder (450) is located between the two first cylinders (440), and the two ends of the second cylinder (450) are respectively connected to the two first cylinders (440).

5. The anti-deviation automotive brake base plate mold according to claim 1, characterized in that, A telescopic rod (460) is provided between the inner wall of the lower die (100) and the lower stamping seat (110). The top end of the telescopic rod (460) passes through the lower die (100) and is flush with the bottom surface of the lower die (100).

6. The anti-deviation automotive brake base plate mold according to claim 5, characterized in that, The telescopic rod (460) is provided with an ejector spring (461) inside. The two ends of the ejector spring (461) are fixedly connected to the telescopic end of the telescopic rod (460) and the inner wall of the fixed top end, respectively.

7. The anti-deviation automotive brake base plate mold according to claim 1, characterized in that, Guide rods (300) are fixedly connected to the four corners of the lower surface of the upper stamping seat (210), and guide shells (310) are fixedly connected to the four corners of the upper surface of the lower stamping seat (110).

8. The anti-deviation automotive brake base plate mold according to claim 7, characterized in that, The bottom end of the guide rod (300) is located inside the guide shell (310), and the guide rod (300) is slidably connected to the inner wall of the guide shell (310).

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