Steel plate spring eye bushing press-fitting device

Abstract

The utility model discloses a steel plate spring eye lining press-fitting device which comprises a supporting table and a press-fitting assembly, and the supporting table is provided with a press-fitting opening in butt joint with an eye hole. The press-fitting assembly comprises a broach and a hydraulic machine, the broach is provided with a tool bit end for shaping the lug rolling hole and a bearing end for bearing the bushing, the hydraulic machine is erected above the press-fitting opening, and a lower pressing head of the hydraulic machine can press the bearing end downwards, so that the broach penetrates through the lug rolling hole and the press-fitting opening, and the bushing enters and is embedded into the lug rolling hole along with the broach. And the bearing end is pressed downwards through a lower pressing head of the hydraulic machine, so that the tool bit end slides relative to the rolling lug hole, and then the rolling lug hole is shaped until the broach completely penetrates through the rolling lug hole. And the bushing moves along with the broach, so that the bushing is embedded into the rolling lug hole. By means of the steel plate spring eye lining press-fitting device, the lining can enter the eye hole along with the broach, and the work efficiency of eye eye press-fitting of the lining is improved.

Description

Technical Field

[0001] The utility model relates to the field of leaf spring production, and particularly relates to a leaf spring coil ear bushing pressing device. Background Art

[0002] A leaf spring is a widely used elastic element in an automobile suspension. For the existing leaf spring, reference can be made to the patent with the application number CN201410174979.4. A leaf spring usually consists of a certain number of steel plates. The two ends of the first steel plate (i.e., the uppermost steel plate) are usually designed with coil ears, and bushings are arranged inside the coil ears for connection with the vehicle body through the bushings.

[0003] The bushing is in interference fit with the coil ear hole and needs to be pressed. The existing method is to use a hydraulic press in cooperation with a broach for pressing the bushing. First, the hydraulic press presses the broach into the coil ear to shape the inner diameter of the coil ear; then the hydraulic press is used to press the bushing into the coil ear to complete the installation. The whole installation process requires two steps, and the production efficiency is relatively low.

[0004] Therefore, how to improve the working efficiency of pressing the bushing into the coil ear is a technical problem to be solved urgently. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies and provide a leaf spring coil ear bushing pressing device to solve the technical problem of how to improve the working efficiency of pressing the bushing into the coil ear in the prior art.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a leaf spring coil ear bushing pressing device, which includes:

[0008] A support table, which is provided with a pressing port docked with the coil ear hole; and

[0009] A pressing assembly, which includes a broach and a hydraulic press. The broach has a tool head end for shaping the coil ear hole and a supporting end for supporting the bushing. The hydraulic press is installed above the pressing port, and the pressing head of the hydraulic press can press down the supporting end so that the broach penetrates through the coil ear hole and the pressing port, and the bushing enters and is embedded in the coil ear hole along with the broach.

[0010] In some embodiments, the tool head end has a plurality of shaping parts, and the plurality of shaping parts are arranged along the axial direction of the broach.

[0011] In some embodiments, a plurality of sawteeth are arranged on the outer periphery of the shaping part.

[0012] In some embodiments, the end of the tool head end has a guiding conical surface.

[0013] In some embodiments, the supporting end has a pin shaft and a limiting platform. The limiting platform is close to the cutter head end. One end of the pin shaft is connected to the center of the limiting platform. The pin shaft passes through the bushing, and the limiting platform presses against the end face of the bushing.

[0014] In some embodiments, the length of the pin shaft is less than the length of the bushing.

[0015] In some embodiments, the supporting platform is provided with a first card slot for placing the spring eye.

[0016] In some embodiments, a notch is provided on the side wall of the first card slot.

[0017] In some embodiments, the hydraulic press includes a hydraulic cylinder. The hydraulic cylinder is erected above the supporting platform. The piston rod of the hydraulic cylinder is connected to the pressing head to drive the pressing head to move in the vertical direction.

[0018] In some embodiments, the pressing head is provided with a second card slot, and the second card slot fits against the outer wall of the bushing.

[0019] First, place the spring eye of the leaf spring on the supporting platform and align the spring eye hole with the pressing port. Then, place the bushing on the supporting end and place the cutter head end on the top of the spring eye hole. Press the supporting end by the pressing head of the hydraulic press, so that the cutter head end slides relative to the spring eye hole, and then shape the spring eye hole until the broach completely penetrates the spring eye hole. The bushing moves along with the broach, so that the bushing is embedded into the spring eye hole. By using the above-mentioned leaf spring spring eye bushing pressing device, the bushing can enter the spring eye hole together with the broach, improving the working efficiency of pressing the bushing into the spring eye. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the leaf spring spring eye bushing pressing device provided by the embodiment of the present invention;

[0021] Figure 2 is a partial structural schematic diagram of the supporting platform provided by the embodiment of the present invention;

[0022] Figure 3 is a partial cross-sectional view of the shaping part provided by the embodiment of the present invention.

[0023] Description of the reference numerals: supporting platform 100, pressing port 110, first card slot 120, notch 130, pressing assembly 200, broach 210, cutter head end 211, shaping part 2111, saw teeth 21111, guiding conical surface 2112, supporting end 212, pin shaft 2121, limiting platform 2122, hydraulic press 220, pressing head 221, hydraulic cylinder 222, second card slot 2211. Detailed Embodiments

[0024] In order to make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] In order to solve the technical problem of how to improve the working efficiency of pressing the bushing into the spring eye, the present utility model provides a pressing device for a leaf spring eye bushing, which can make the bushing enter the spring eye hole together with the broach 210, thereby improving the working efficiency of pressing the bushing into the spring eye.

[0026] It should be noted that the pressing device for the leaf spring eye bushing of the present utility model is used for but not limited to leaf spring production, etc. For the convenience of description, in the present utility model, only the case where the pressing device for the leaf spring eye bushing is applied to leaf spring production is taken as an example for description, and the principle of the pressing device for the leaf spring eye bushing applied to other types of equipment is substantially the same as that applied to leaf spring production, and will not be elaborated one by one here.

[0027] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the pressing device for the leaf spring eye bushing in an embodiment of the present utility model. The pressing device for the leaf spring eye bushing includes a support table 100 and a pressing assembly 200. The support table 100 is provided with a pressing port 110 that is docked with the spring eye hole. The pressing assembly 200 includes a broach 210 and a hydraulic press 220. The broach 210 has a tool head end 211 for shaping the spring eye hole and a supporting end 212 for supporting the bushing. The hydraulic press 220 is mounted above the pressing port 110, and the pressing head 221 of the hydraulic press 220 can press down on the supporting end 212 so that the broach 210 penetrates through the spring eye hole and the pressing port 110, and the bushing enters and is embedded in the spring eye hole along with the broach 210.

[0028] In this embodiment, first, the leaf spring eye is placed on the support table 100, and the spring eye hole is aligned with the pressing port 110. Then, the bushing is placed on the supporting end 212, and the tool head end 211 is placed at the top of the spring eye hole. By pressing down the supporting end 212 with the pressing head 221 of the hydraulic press 220, the tool head end 211 slides relative to the spring eye hole, thereby shaping the spring eye hole until the broach 210 completely penetrates the spring eye hole. The bushing moves along with the broach 210, so that the bushing is embedded in the spring eye hole. By using the above-mentioned pressing device for the leaf spring eye bushing, the bushing can enter the spring eye hole together with the broach 210, thereby improving the working efficiency of pressing the bushing into the spring eye.

[0029] In some of these embodiments, the tool head end 211 has a plurality of shaping portions 2111, and the plurality of shaping portions 2111 are arranged along the axial direction of the broach 210.

[0030] In this embodiment, the shaping part 2111 can scrape the inner wall of the ear hole, and then shape the inner wall of the ear hole through the shaping part 2111. A plurality of shaping parts 2111 are arranged along the axial direction of the broach 210, so that a more ideal shaping effect can be obtained.

[0031] Based on the above embodiment, in some embodiments, a plurality of saw teeth 21111 are provided on the outer periphery of the shaping part 2111.

[0032] In this embodiment, the saw teeth 21111 press against the inner wall of the ear hole, making the inner wall of the ear hole more easily deformable, so that the inner wall of the ear hole can be shaped faster.

[0033] Based on the above embodiment, in some embodiments, the end of the tool head end 211 has a guiding conical surface 2112.

[0034] In this embodiment, under the guiding action of the guiding conical surface 2112, the tool head end 211 is more easily inserted into the ear hole.

[0035] In some embodiments, the supporting end 212 has a pin shaft 2121 and a limiting platform 2122. The limiting platform 2122 is close to the tool head end 211. One end of the pin shaft 2121 is connected to the center of the limiting platform 2122. The pin shaft 2121 is inserted through the bushing, and the limiting platform 2122 presses against the end face of the bushing.

[0036] In this embodiment, the pin shaft 2121 is inserted through the bushing, and the limiting platform 2122 presses against the end face of the bushing, so that the bushing can be stably placed on the supporting end 212.

[0037] In some embodiments, the length of the pin shaft 2121 is less than the length of the bushing.

[0038] In this embodiment, since the length of the pin shaft 2121 is less than the length of the bushing, the lower pressing head 221 indirectly pushes the broach 210 to move relative to the ear hole by pushing the bushing. Since the lower pressing head 221 directly pushes the bushing to move, it helps the bushing to overcome the resistance and be embedded into the ear hole.

[0039] In some embodiments, the support platform 100 is provided with a first card slot 120 for placing the ear.

[0040] In this embodiment, the ear is placed in the first card slot 120, and then the position of the ear can be fixed through the first card slot 120, so that the ear hole is aligned with the press-fitting port 110.

[0041] Based on the above embodiment, in some embodiments, a notch 130 is provided on the side wall of the first card slot 120.

[0042] In this embodiment, since a notch 130 is provided on the side wall of the first card slot 120, it is convenient to take and place the coil ear from the first card slot 120.

[0043] In some of these embodiments, the hydraulic press 220 includes a hydraulic cylinder 222. The hydraulic cylinder 222 is mounted above the support table 100, and the piston rod of the hydraulic cylinder 222 is connected to the lower pressing head 221 to drive the lower pressing head 221 to move in the vertical direction.

[0044] In this embodiment, the hydraulic cylinder 222 pushes the lower pressing head 221 to move along the vertical direction, and thus can drive the lower pressing head 221 to press down the bushing.

[0045] In some of these embodiments, the lower pressing head 221 is provided with a second card slot 2211, and the second card slot 2211 fits against the outer wall of the bushing.

[0046] In this embodiment, the second card slot 2211 fits against the outer wall of the bushing, which can prevent the bushing from shifting during the process of pressing down the bushing.

[0047] For a better understanding of the present utility model, the following is a detailed description of the technical solution of the present utility model in conjunction with Figures 1 to 3 :

[0048] First, place the leaf spring coil ear on the support table 100, and align the coil ear hole with the press-fitting port 110. Subsequently, place the bushing on the supporting end 212, and place the cutter head end 211 at the top of the coil ear hole. The lower pressing head 221 of the hydraulic press 220 presses down the supporting end 212, so that the cutter head end 211 slides relative to the coil ear hole. The shaping portion 2111 can scrape the inner wall of the coil ear hole, and then the inner wall of the coil ear hole is shaped by the shaping portion 2111. The plurality of shaping portions 2111 are arranged along the axial direction of the broach 210, so that a more ideal shaping effect can be obtained until the broach 210 completely penetrates the coil ear hole. The bushing moves along with the broach 210, so that the bushing is embedded into the coil ear hole. By using the above-mentioned leaf spring coil ear bushing press-fitting device, the bushing can enter the coil ear hole together with the broach 210, improving the working efficiency of press-fitting the bushing into the coil ear.

[0049] The specific embodiments of the present utility model described above do not constitute a limitation to the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A press-fitting device for a leaf spring eye bushing, characterized in that Comprising: A support platform, which is provided with a press-fitting opening docked with the ear hole; And A press-fitting assembly, which includes a broach and a hydraulic press. The broach has a tool head end for shaping the ear hole and a supporting end with a supporting bushing. The hydraulic press is mounted above the press-fitting opening, and the lower pressing head of the hydraulic press can press down the supporting end, so that the broach penetrates through the ear hole and the press-fitting opening, and the bushing enters and is embedded in the ear hole along with the broach.

2. The leaf spring eye bushing press-fitting device according to claim 1, wherein The tool head end has a number of shaping parts, and the number of the shaping parts are arranged along the axial direction of the broach.

3. The leaf spring eye bushing press-fitting device according to claim 2, characterized in that, A number of saw teeth are provided on the outer periphery of the shaping part.

4. The press-fitting device for the spring eye bushing of a leaf spring according to claim 2, characterized in that, The end of the tool head end has a guiding conical surface.

5. The leaf spring eye bushing press-fitting device according to claim 1, wherein, The supporting end has a pin shaft and a limiting platform. The limiting platform is close to the tool head end. One end of the pin shaft is connected to the center of the limiting platform. The pin shaft is inserted into the bushing, and the limiting platform presses against the end face of the bushing.

6. The press-fitting device for the shackle bushing of the leaf spring according to claim 5, characterized in that, The length of the pin shaft is less than the length of the bushing.

7. The leaf spring eye bushing press-fitting device according to claim 1, wherein The support platform is provided with a first card slot for placing the ear.

8. The leaf spring eye bushing press-fitting device according to claim 7, characterized in that, A notch is provided on the side wall of the first card slot.

9. The leaf spring eye bushing press-fitting device according to claim 1, characterized in that, The hydraulic press includes a hydraulic cylinder. The hydraulic cylinder is mounted above the support platform. The piston rod of the hydraulic cylinder is connected to the lower pressing head to drive the lower pressing head to move in the vertical direction.

10. The leaf spring eye bushing press-fitting device according to claim 9, characterized in that, The lower pressing head is provided with a second card slot, and the second card slot fits the outer wall of the bushing.

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