A buffer press machine
By introducing a guiding mechanism into the buffer press machine, and utilizing the combination of inclined guide plates and limit plates, the problem of the coupler buffer being difficult to center is solved, achieving automatic centering and stable pressing, thus improving production efficiency and equipment maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI SHIRUIDA HEAVY ENG MACHINERY
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-23
AI Technical Summary
In existing technologies, the coupler buffer is prone to swaying during hoisting, making it difficult to land centered on the support frame, requiring secondary adjustments, which is time-consuming and labor-intensive.
A buffer pressing machine was designed, including a pressing mechanism and a guiding mechanism. The guiding mechanism consists of an inclined guide plate and a limiting plate. The guide plate generates a force towards the center to guide the coupler buffer to automatically center, and the limiting plate fixes it to ensure the stability and accuracy of the pressing process.
This ensures that the coupler buffer falls precisely into the predetermined position every time, without the need for secondary adjustments, thereby improving production efficiency and reducing production costs.
Smart Images

Figure CN224390435U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of buffer manufacturing, specifically to a buffer press-fitting machine. Background Technology
[0002] Buffers are widely used in many fields such as machinery, automobiles, and railways. Coupler buffers are used for coupling railway locomotives and rolling stock to transmit traction force and buffer impact force. Coupler buffers consist of a coupler, buffer, coupler tail frame, and trailing plate. The buffer press-fitting machine is a key piece of equipment for installing the buffer in the coupler tail frame. The buffer press-fitting machine is used to pre-press the buffer in the coupler tail frame so that the sum of the dimensions of the buffer and the trailing plate is less than the dimension between the front and rear of the trailing plate seat, so as to facilitate the smooth installation of the coupler buffer onto the car body.
[0003] Chinese utility model patent CN217195097U discloses a pressing device for a coupler buffer, including a support frame, a baffle plate vertically fixed at one end of the support plate of the support frame, a hydraulic cylinder fixed on the support plate opposite the baffle plate, a pressing assembly and a limit adjustment assembly arranged between the hydraulic cylinder and the baffle plate, the pressing assembly being close to the hydraulic cylinder, the pressing assembly including a connecting plate, the connecting plate being fixedly connected to the piston rod of the hydraulic cylinder, a double-ended lead screw being rotatably connected inside the connecting plate, push plates being rotatably connected to both ends of the double-ended lead screw, and the limit adjustment assembly including a limit plate being slidably connected inside the support plate.
[0004] The aforementioned technologies have the following drawbacks: the coupler buffer is relatively heavy and is usually hoisted onto the support frame by an overhead crane. During the hoisting process, the coupler buffer is prone to swinging in the air, causing it to be out of center when it lands on the support frame, requiring secondary adjustment, which is time-consuming and labor-intensive. Utility Model Content
[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a buffer pressing machine to solve the technical problem that the coupler buffer is not easy to be centered and fall onto the support frame in the existing technology, requiring secondary adjustment.
[0006] To achieve the above technical objectives, the present invention provides a buffer pressing machine, including a pressing mechanism. The pressing mechanism includes a worktable and a pressure plate, a baffle, and two limiting plates disposed on the worktable. The pressure plate and the baffle are opposite to each other and are respectively used to abut the head and tail of the coupler buffer. The two limiting plates are opposite to each other and are respectively used to abut the two sides of the coupler buffer.
[0007] The guiding mechanism includes two guide plates, which are respectively connected to two limiting plates, and both guide plates are inclined.
[0008] In some embodiments, the guide plate includes an inclined plate, a support plate, and a fixing assembly. The support plate is detachably connected to the limiting plate via the fixing assembly, and the inclined plate is connected to the support plate.
[0009] In some embodiments, the fixing component includes a bolt, the support plate has a through hole, the limiting plate has a screw hole, the bolt passes through the through hole, and the bolt is threaded into the screw hole.
[0010] In some embodiments, the limiting plate is provided with a limiting groove for accommodating the support plate.
[0011] In some embodiments, the inclined plate is rotatably connected to the support plate, and the guide mechanism further includes an adjustment component for adjusting the tilt angle of the inclined plate.
[0012] In some embodiments, the adjustment assembly includes a first rod, a second rod, and a locking assembly. The first rod is hinged to a support plate, the second rod is slidably connected to the first rod, and the end of the second rod away from the first rod is hinged to an inclined plate. The locking assembly is used to lock the second rod at a predetermined position on the first rod.
[0013] In some embodiments, the locking assembly includes a plug rod, a first rod body having a plug hole, and a second rod body having slots spaced apart along the sliding direction of the second rod body, the plug rod passing through the plug hole and either slot.
[0014] In some embodiments, the end of the insert near the slot is spherical.
[0015] In some embodiments, the guide mechanism further includes an elastic layer connected to adjacent sides of the two guide plates.
[0016] In some embodiments, the guide mechanism further includes a wear-resistant layer attached to the elastic layer on the side away from the guide plate.
[0017] Compared with the prior art, the beneficial effects of this utility model include: the guiding effect of the guide plate enables the coupler buffer to accurately land on the predetermined position on the worktable every time, without the need for secondary adjustment, thus improving production efficiency. Attached Figure Description
[0018] Figure 1 This is a first-view overall structural diagram of the press-fitting machine provided by this utility model;
[0019] Figure 2 This is a second-view overall structural diagram of the press-fitting machine provided by this utility model;
[0020] Figure 3 This utility model provides Figure 2Enlarged view of the local structure at point A in the middle.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Pressing mechanism; 11. Workbench; 12. Pressure plate; 13. Baffle; 14. Limiting plate; 2. Guide mechanism; 21. Guide plate; 211. Inclined plate; 212. Support plate; 3. Fixing assembly; 31. Bolt; 32. Through hole; 33. Screw hole; 34. Limiting groove; 4. Adjustment assembly; 41. First rod; 42. Second rod; 5. Locking assembly; 51. Insert rod; 52. Insertion hole; 53. Slot. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0024] This utility model provides a buffer pressing machine, the structure of which is as follows: Figure 1 - Figure 3 As shown, it includes a pressing mechanism 1 and a guiding mechanism 2.
[0025] The pressing mechanism 1 includes a workbench 11 and a pressure plate 12, a baffle 13 and two limiting plates 14 disposed on the workbench 11. The pressure plate 12 and the baffle 13 are disposed opposite to each other and are respectively used to abut the head and tail of the coupler buffer. The two limiting plates 14 are disposed opposite to each other and are respectively used to abut the two sides of the coupler buffer.
[0026] The guiding mechanism 2 includes two guide plates 21, which are respectively connected to two limiting plates 14, and both guide plates 21 are inclined.
[0027] During use, when the coupler buffer is lifted onto the press machine using an overhead crane, because the two guide plates 21 are inclined and connected to the two limiting plates 14 respectively, the sides of the coupler buffer will first contact the inclined surfaces of the guide plates 21 during its descent. The inclined guide plates 21 will generate a center-direction force on the coupler buffer, which can effectively guide the coupler buffer to move towards the center of the worktable 11. As the coupler buffer continues to fall, under the continuous guiding action of the guide plates 21, it gradually adjusts its position until it lands smoothly at the predetermined position on the worktable 11, achieving automatic centering. After the coupler buffer lands on the worktable 11, the pressure plate 12 and the baffle 13 abut against the head and tail of the coupler buffer respectively, and the two limiting plates 14 abut against the sides of the coupler buffer, limiting and fixing the coupler buffer from four directions: front, back, left, and right. During the pressing process, the pressure plate 12, driven by the pressing power source, applies pressure to the head of the coupler buffer to perform the pressing operation, while the baffle 13 and the limiting plate 14 continuously fix the coupler buffer to ensure that the pressing process is stable and accurate.
[0028] In this invention, the guiding effect of the guide plate 21 ensures that the coupler buffer can accurately land at the predetermined position on the workbench 11 each time, without the need for secondary adjustments, thus improving production efficiency.
[0029] For easy replacement of guide plate 21, please refer to... Figure 1 In a preferred embodiment, the guide plate 21 includes an inclined plate 211, a support plate 212, and a fixing component 3. The support plate 212 is detachably connected to the limiting plate 14 via the fixing component 3, and the inclined plate 211 is connected to the support plate 212.
[0030] When the inclined plate 211 is damaged by a collision during use, the restriction of the fixing component 3 can be released, and the inclined plate 211 and the support plate 212 can be replaced, which reduces production costs.
[0031] For easy replacement of guide plate 21, please refer to... Figure 2 In a preferred embodiment, the fixing component 3 includes a bolt 31, the support plate 212 is provided with a through hole 32, the limiting plate 14 is provided with a screw hole 33, the bolt 31 passes through the through hole 32, and the bolt 31 is threaded into the screw hole 33.
[0032] When in use, bolts 31 can be tightened and loosened using a wrench or power tool. When guide plate 21 is worn or needs to be adapted to different specifications of coupler buffers, operators can quickly remove the old guide plate 21 and install the new guide plate 21, which significantly improves equipment maintenance efficiency and production flexibility.
[0033] To make it easier to align the through hole 32 with the screw hole 33, please refer to... Figure 2In a preferred embodiment, the limiting plate 14 is provided with a limiting groove 34 for accommodating the support plate 212.
[0034] When in use, the shape of the limiting groove 34 is adapted to the support plate 212. After the support plate 212 is embedded in the limiting groove 34, it is constrained by the groove wall in the horizontal and vertical directions, which can accurately determine the installation position of the guide plate 21, making it easier to align the through hole 32 and the screw hole 33.
[0035] To flexibly adjust the angle of the ramp 211 to accommodate coupler buffers of different specifications, please refer to... Figure 2 In a preferred embodiment, the inclined plate 211 is rotatably connected to the support plate 212, and the guide mechanism 2 further includes an adjustment component 4, which is used to adjust the tilt angle of the inclined plate 211.
[0036] When in use, the adjustment component 4 can freely adjust the tilt angle of the ramp 211 within a certain range. Whether it is a small passenger car buffer or a large truck buffer, the guide path can be optimized by changing the angle of the ramp 211, thus improving its versatility.
[0037] To adjust the angle of inclined plate 211, please refer to... Figure 3 In a preferred embodiment, the adjustment assembly 4 includes a first rod 41, a second rod 42, and a locking assembly 5. The first rod 41 is hinged to the support plate 212, the second rod 42 is slidably connected to the first rod 41, and the end of the second rod 42 away from the first rod 41 is hinged to the inclined plate 211. The locking assembly 5 is used to lock the second rod 42 to a predetermined position on the first rod 41.
[0038] In use, the sliding connection between the first rod 41 and the second rod 42, combined with the hinged structure at both ends, allows for continuous adjustment of the inclined plate 211 within a large angle range. By changing the extension length of the second rod 42 onto the first rod 41, the tilt angle of the inclined plate 211 can be linearly adjusted. The locking assembly 5 securely locks the second rod 42 onto the first rod 41. During the impact of the coupler buffer falling, the impact force is distributed and transmitted to the support plate 212 and the limiting plate 14 through the inclined plate 211, the second rod 42, and the first rod 41. This effectively prevents angular deviation caused by force, ensuring the stability and accuracy of the guide.
[0039] To fix the second rod 42 to the predetermined position on the first rod 41, please refer to... Figure 3 In a preferred embodiment, the locking assembly 5 includes a plug rod 51, a first rod body 41 having a plug hole 52, and a second rod body 42 having slots 53 spaced apart along the sliding direction of the second rod body 42, wherein the plug rod 51 passes through the plug hole 52 and any slot 53.
[0040] During use, the slots 53 spaced apart on the second rod 42 provide multiple fixed positions for adjusting the angle of the inclined plate 211. This enables precise, step-like control of the angle of the inclined plate 211, ensuring that the coupler buffer is guided along a preset path. After the insertion rod 51 passes through the insertion hole 52 and the slot 53, it forms a rigid connection, effectively resisting the impact and vibration generated when the coupler buffer falls.
[0041] To make it easier for the insert 51 to slide into the slot 53, please refer to... Figure 3 In a preferred embodiment, the end of the insert 51 near the slot 53 is spherical.
[0042] When in use, the spherical end can automatically correct the angular deviation between the insertion rod 51 and the slot 53 when inserted into the slot 53, avoiding jamming problems caused by manual misalignment.
[0043] To mitigate the impact force when the coupler buffer descends, please refer to... Figure 3 In a preferred embodiment, the guide mechanism 2 further includes an elastic layer made of polyurethane with a thickness of 1 mm, and the elastic layer is connected to the adjacent side of the two guide plates 21.
[0044] During use, when the coupler buffer falls and contacts the guide plate 21, the elastic layer absorbs the impact energy through its own deformation, reducing the impact force of the buffer on the guide plate 21. This effectively reduces wear on the buffer surface and structural damage to the guide plate 21.
[0045] To reduce wear on guide plate 21, please refer to... Figure 3 In a preferred embodiment, the guide mechanism 2 further includes a wear-resistant layer made of polyethylene with a thickness of 1 mm, and the wear-resistant layer is attached to the elastic layer on the side away from the guide plate 21.
[0046] During use, the wear-resistant layer is made of high-molecular wear-resistant material, which can effectively resist the friction generated during the sliding of the coupler buffer and improve the service life of the guide plate 21.
[0047] To better understand this utility model, the following is combined with... Figure 1 - Figure 3The working principle of a buffer pressing machine according to the present invention is described in detail as follows: When the coupler buffer is hoisted onto the pressing machine using an overhead crane, since the two guide plates 21 are inclined and respectively connected to the two limiting plates 14, during the descent of the coupler buffer, its sides will first contact the inclined surfaces of the guide plates 21. The inclined guide plates 21 will generate a center-direction force on the coupler buffer, which can effectively guide the coupler buffer to move towards the center of the worktable 11. As the coupler buffer continues to fall, under the continuous guiding action of the guide plates 21, its position is gradually adjusted until it lands smoothly at the predetermined position on the worktable 11, achieving automatic centering. After the coupler buffer lands on the worktable 11, the pressure plate 12 and the baffle 13 abut against the head and tail of the coupler buffer respectively, and the two limiting plates 14 abut against the sides of the coupler buffer, limiting and fixing the coupler buffer from four directions: front, back, left, and right. During the pressing process, the pressure plate 12, driven by the pressing power source, applies pressure to the head of the coupler buffer to perform the pressing operation, while the baffle 13 and the limiting plate 14 continuously fix the coupler buffer to ensure that the pressing process is stable and accurate.
[0048] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A bumper press machine characterized by, include: A pressing mechanism, comprising a worktable and a pressure plate, a baffle, and two limiting plates disposed on the worktable. The pressure plate and the baffle are arranged opposite to each other and are respectively used to abut the head and tail of the coupler buffer. The two limiting plates are arranged opposite to each other and are respectively used to abut the two sides of the coupler buffer. The guiding mechanism includes two guide plates, which are respectively connected to two limiting plates, and both guide plates are inclined.
2. The bumper press machine of claim 1, wherein, The guide plate includes an inclined plate, a support plate, and a fixing assembly. The support plate is detachably connected to the limiting plate via the fixing assembly, and the inclined plate is connected to the support plate.
3. The bumper press machine of claim 2, wherein, The fixing component includes a bolt, the support plate has a through hole, the limiting plate has a screw hole, the bolt passes through the through hole, and the bolt is threaded into the screw hole.
4. The bumper press machine of claim 2, wherein, The limiting plate is provided with a limiting groove for accommodating the support plate.
5. The buffer press-fitting machine according to claim 2, characterized in that, The inclined plate is rotatably connected to the support plate, and the guide mechanism further includes an adjustment component for adjusting the tilt angle of the inclined plate.
6. The buffer press-fitting machine according to claim 5, characterized in that, The adjustment assembly includes a first rod, a second rod, and a locking assembly. The first rod is hinged to a support plate, the second rod is slidably connected to the first rod, and the end of the second rod away from the first rod is hinged to an inclined plate. The locking assembly is used to lock the second rod at a predetermined position on the first rod.
7. The buffer press-fitting machine according to claim 6, characterized in that, The locking assembly includes a plug rod, a first rod body having a plug hole, and a second rod body having slots spaced apart along the sliding direction of the second rod body, the plug rod passing through the plug hole and any slot.
8. The buffer press-fitting machine according to claim 7, characterized in that, The end of the insert near the slot is spherical.
9. The buffer press-fitting machine according to claim 1, characterized in that, The guiding mechanism also includes an elastic layer connected to one side of the two guide plates that are close to each other.
10. The buffer press-fitting machine according to claim 9, characterized in that, The guiding mechanism also includes a wear-resistant layer, which is attached to the elastic layer on the side away from the guide plate.