A trimming device for railway fittings
By combining hydraulic drive and return spring, automatic loading and unloading of railway parts is realized, solving the problem of inconvenient part handling in existing trimming devices and improving trimming efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN HENGSHENG RAILWAY VEHICLE PARTS CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-14
AI Technical Summary
Existing edge-cutting devices suffer from inconvenient parts handling after edge cutting, resulting in low edge-cutting efficiency.
Design a cutting device for railway parts. A hydraulic column drives a moving seat to move the cutting module and squeeze the parts into the cutting groove. A return spring pushes the top block upward to push the parts out, and a push plate automatically pushes the parts into the storage box, simplifying the material unloading process.
It enables automatic loading and unloading of parts after trimming, simplifies the operation steps, and improves the efficiency and convenience of trimming processing.
Smart Images

Figure CN224488489U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway parts manufacturing, specifically a cutting device for railway parts. Background Technology
[0002] After railway parts are manufactured, due to the precision issues of the production molds, burrs are easily generated on the sides of the parts. The presence of burrs affects the quality of the parts and impacts subsequent sales and use. Therefore, a trimming device is usually used to remove the burrs around the parts. However, when using the existing trimming device, the trimmed parts fall into the groove below. Operators need to remove the parts from the groove before they can perform the subsequent trimming operation. This makes it very inconvenient to retrieve the trimmed parts, prolongs the trimming operation time, and reduces the efficiency of the trimming process. Utility Model Content
[0003] The purpose of this utility model is to provide a cutting device for railway parts, which can solve the technical problem that the existing cutting device is inconvenient to handle after cutting, thus affecting the cutting efficiency. It pops the cut parts upward and automatically pushes them into a storage box on one side, simplifying the unloading steps of the cut parts and improving the efficiency of cutting processing.
[0004] To achieve the above objectives, this utility model employs the following technical solution:
[0005] A trimming device for railway fittings includes a frame, a fixed base at the bottom of the frame, a movable base slidably connected to the frame along the vertical direction, a hydraulic column on the frame for driving the movable base to slide vertically, a trimming mold base on the fixed base, a trimming groove at the top of the trimming mold base, a trimming module for use with the trimming groove at the bottom of the movable base, a communicating moving groove at the bottom of the trimming groove, a slide frame slidably connected to the moving groove along the vertical direction within the moving groove, a return spring between the slide frame and the bottom of the moving groove, a top block on the slide frame extending through the moving groove to the top of the trimming groove, a push plate slidably connected to one side of the trimming mold base along the horizontal direction, the push plate slidingly contacting the top of the trimming mold base, and a storage box for use with the push plate on the other side of the trimming mold base.
[0006] Furthermore, guide rods are symmetrically arranged inside the moving groove. The guide rods pass through the slide and are slidably connected to it. The return spring is sleeved on the outside of the guide rods.
[0007] Furthermore, the bottom of the frame is provided with multiple columns, which pass through the movable base and are slidably connected to it.
[0008] Furthermore, the longitudinal section of the push plate is an inverted L-shape, and a telescopic rod is provided on one side of the cutting die base. The movable end of the telescopic rod is connected to the vertical part of the inverted L-shape, and the horizontal part of the inverted L-shape is in sliding contact with the top of the cutting die base.
[0009] Furthermore, the movable end of the telescopic rod is provided with a sliding sleeve, the vertical part of the inverted L-shaped push plate is slidably connected inside the sliding sleeve, and a compression spring is provided between the vertical part of the inverted L-shaped push plate and the bottom of the sliding sleeve.
[0010] Furthermore, the storage box is equipped with a storage plate, and the storage plate has multiple chip leakage holes.
[0011] Furthermore, the cross-sectional dimension of the top block is smaller than the cross-sectional dimension of the cutting groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. The structure of this utility model features a trimming mold base on a fixed base, a trimming groove on the top of the trimming mold base, and a trimming module on a movable base that works in conjunction with the trimming groove. During trimming, the burr-covered railway component is placed in the trimming groove on the trimming mold base. A hydraulic column drives the movable base downwards, causing the trimming module at its bottom to press the railway component into the trimming groove, leaving the burrs on the trimming mold base. This achieves the trimming operation on the railway component. During this process, the trimming module moves the railway component downwards, pressing the top block, causing the top block and slide to slide downwards, compressing the return spring at the bottom of the slide. After trimming, when the hydraulic column drives the movable base upwards to return to its original position, the return spring causes the slide to move the top block upwards until the top block slides to the top of the trimming groove, thus ejecting the railway component from the groove. The trimmed railway component can then be easily removed, greatly simplifying the unloading process, saving operation time, and improving the efficiency of trimming.
[0014] 2. A push plate is slidably connected to one side of the trimming die base. The push plate slides in contact with the top of the trimming die base. A storage box is provided on the other side of the trimming die base to cooperate with the push plate. With this structure, after the top block pushes the railway parts onto the trimming die base, the lateral sliding of the push plate pushes the railway parts on the trimming die base to the other side, so that the trimmed railway parts automatically fall into the storage box. There is no need for manual unloading of the trimmed railway parts, which greatly reduces the workload of trimming operation and improves the efficiency and convenience of trimming operation. Attached Figure Description
[0015] Appendix Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Appendix Figure 2 This is a front view of the present invention.
[0017] Appendix Figure 3 This is an appendix to this utility model. Figure 2 A cross-sectional view along the AA direction.
[0018] Appendix Figure 4 This is an appendix to this utility model. Figure 3 Cross-sectional view along the BB direction.
[0019] The labels shown in the attached diagram:
[0020] 1. Frame; 2. Fixed base; 3. Moving base; 4. Hydraulic column; 5. Trimming die base; 6. Trimming groove; 7. Trimming module; 8. Moving groove; 9. Slide; 10. Return spring; 11. Top block; 12. Push plate; 13. Storage box; 14. Guide rod; 15. Column; 16. Telescopic rod; 17. Sliding sleeve; 18. Compression spring; 19. Storage plate; 20. Chip leakage hole. Detailed Implementation
[0021] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0022] Reference Figure 1 and Figure 2This utility model describes a cutting device for railway parts, used to remove burrs from the periphery of manufactured railway parts. The main structure includes a frame 1, which provides support. A fixed base 2 is located below the frame 1 and is fixed to the ground by anchor bolts. A movable base 3 is slidably connected to the frame 1 vertically. A hydraulic column 4, which drives the movable base 3 to slide vertically, is mounted on the frame 1. Specifically, the hydraulic column 4 adopts an existing hydraulic cylinder structure, with its main body fixed to the frame 1 by welding or bolts. The movable end at its bottom is fixed to the movable base 3 by welding or bolts, and its telescopic movement drives the vertical sliding of the movable base 3. A cutting die base 5 is detachably fixed to the fixed base 2 by bolts. The top of the trimming die base 5 is provided with a trimming groove 6, the shape of which is adapted to the shape of the railway fitting without burrs. The bottom of the movable base 3 is detachably fixed with a trimming module 7 that works with the trimming groove 6. The trimming module 7 is also adapted to the shape of the trimming groove 6. In this structure, during trimming operations, the railway fitting with burrs is placed in the trimming groove 6 on the trimming die base 5. Then, the hydraulic column 4 drives the movable base 3 downwards, causing the trimming module 7 at the bottom to squeeze the railway fitting into the trimming groove 6. During this process, the burrs around the railway fitting remain on the trimming die base 5, thus achieving the trimming operation. The bottom of the trimming groove 6 is provided with a communicating movable groove 8, which is located inside the trimming die base 5 and connected to... The trimming groove 6 is connected, and a slide 9 is vertically slidably connected inside the moving groove 8. A return spring 10 is provided between the slide 9 and the bottom of the moving groove 8. Preferably, the width of the slide 9 is greater than the width of the trimming groove 6, so that the slide 9 will not enter the trimming groove 6 when it slides upward. A top block 11 is fixed to the slide 9 by welding or bolts. The top block 11 extends to the top of the trimming groove 6 after passing through the moving groove 8. Before the trimming operation, the top block 11 is at the top of the trimming groove 6 under the action of the return spring 10. When the trimming operation is performed, the trimming module 7 squeezes the railway parts into the trimming groove 6, so that the railway parts continue to move downward after contacting the top block 11, compressing the return spring 10. After the trimming is completed, the hydraulic column 4 resets, driving the trimming mold. Block 7 moves upward, and under the action of the return spring 10, the slide frame 9 and the top block 11 drive the trimmed railway parts to move upward until the railway parts are ejected from the trimming groove 6. The top block 11 supports the ejected railway parts, so that the railway parts are located above the trimming die base 5 after being ejected, making it easier to pick up the trimmed railway parts. This greatly simplifies the unloading steps after trimming the railway parts, saves operation time, and improves the efficiency of the trimming operation. A push plate 12 is slidably connected to one side of the trimming die base 5. The push plate 12 slides laterally under the drive of an existing cylinder or electric cylinder and slides in contact with the top of the trimming die base 5. A storage box 13 is provided on the other side of the trimming die base 5 to cooperate with the push plate 12.After trimming, this structure allows the push plate 12 to slide laterally along the top of the trimming die 5, pushing the railway parts remaining on the trimming die 5 towards the storage box 13. The storage box 13 has an open top, and the push plate 12 pushes the railway parts into it, achieving automatic unloading of the trimmed railway parts. This significantly reduces the workload of the unloading operation and improves the efficiency and convenience of the trimming process.
[0023] Preferred, refer to Figure 3 The movable groove 8 is symmetrically fixed with guide rods 14 by welding or bolts. The guide rods 14 pass through the slide 9 and are slidably connected to it. The return spring 10 is sleeved on the outside of the guide rods 14. The guide rods 14 are configured to guide the vertical sliding of the slide 9, making the vertical sliding structure of the slide 9 and the top block 11 more stable, ensuring that the cut railway parts can be pushed out smoothly. The return spring 10 is sleeved on the outside of the guide rods 14, so that when the slide 9 slides downward, it can accurately compress the return spring 10, thereby making the subsequent upward sliding return of the slide 9 and the top block 11 smoother and more accurate.
[0024] Preferably, the bottom of the frame 1 is fixed with multiple columns 15 by welding or bolts. The columns 15 pass through the movable seat 3 and are slidably connected to it. The columns 15 can support the frame 1 on the one hand and guide the vertical sliding of the movable seat 3 on the other hand, so that the movable seat 3 drives the cutting module 7 to slide vertically more stably, thereby ensuring the accuracy of cutting the railway parts.
[0025] Preferably, the longitudinal section of the push plate 12 is an inverted L-shape. A telescopic rod 16 is fixed to one side of the trimming die base 5 by welding or bolts. Specifically, a cylinder or electric cylinder structure can be used. The movable end of the telescopic rod 16 is connected to the vertical part of the inverted L-shape by welding or bolts. The horizontal part of the inverted L-shape slides in contact with the top of the trimming die base 5. This structure allows the vertical part of the inverted L-shape to be located below one side of the trimming die base 5, thereby ensuring that the horizontal part of the inverted L-shape of the push plate 12 is not too far from the top of the trimming die base 5, thus not interfering with the vertical movement of the moving seat 3 and ensuring the smoothness of the trimming process.
[0026] Preferably, the movable end of the telescopic rod 16 is fixed to a sliding sleeve 17 by welding or bolts. The vertical part of the inverted L-shaped push plate 12 is slidably connected inside the sliding sleeve 17. A compression spring 18 is provided between the vertical part of the inverted L-shaped push plate 12 and the bottom of the sliding sleeve 17. With this structure, even if the horizontal part of the inverted L-shaped push plate 12 is higher than the top of the trimming die base 5, when the moving seat 3 moves downward to perform the trimming operation, the moving seat 3 moves downward to contact the horizontal part of the inverted L-shaped push plate 12, pushing the vertical part of the inverted L-shaped push plate 12 towards the edge. The downward sliding action compresses the compression spring 18, causing the entire push plate 12 to move downwards without interfering with the vertical movement of the moving seat 3. When the moving seat 3 slides upwards after the trimming is complete, the horizontal part of the inverted L-shaped push plate 12 slides upwards again to the top of the trimming die seat 5 under the reverse elastic force of the compression spring 18. This allows it to slide laterally under the action of the telescopic rod 16, pushing the railway parts and avoiding motion interference between the push plate 12 and the moving seat 3, thus ensuring the smooth unloading of the trimmed railway parts.
[0027] Preferably, a storage plate 19 is detachably fixed inside the storage box 13 by bolts. The storage plate 19 is provided with multiple through-holes 20 for chip removal. The push plate 12 pushes the trimmed railway parts and the chips generated from trimming into the storage box 13. Both fall onto the storage plate 19. The chips pass through the chip removal holes 20 and fall to the bottom of the storage box 13, while the railway parts remain on the storage plate 19. This achieves effective separation of the railway parts from the trimmed chips and reduces the workload of subsequent chip processing.
[0028] Preferred, refer to Figure 4 The cross-sectional dimension of the top block 11 is smaller than that of the cutting groove 6. This structure ensures that the top block 11 will not come into contact with the side wall of the cutting groove 6 when sliding vertically, thus preventing damage to the side wall, ensuring the integrity of the cutting groove 6, and improving the accuracy of cutting the edge of railway parts.
[0029] Working Principle: This invention features a trimming mold base 5 mounted on a fixed base 2, with a trimming groove 6 on the top of the mold base 5. A trimming module 7, used in conjunction with the trimming groove 6, is mounted on a movable base 3. During trimming, the burr-laden railway component is placed in the trimming groove 6 on the mold base 5. A hydraulic column 4 drives the movable base 3 downwards, causing the trimming module 7 at its bottom to press the railway component into the trimming groove 6, leaving the burrs on the mold base 5. This achieves the trimming operation on the railway component. During this process, the trimming module 7 moves the railway component downwards, pressing against the top block 11, causing the top block 11 and the slide 9 to slide downwards, compressing the return spring 10 at the bottom of the slide 9. After trimming, when the hydraulic column 4 drives the movable base 3 to slide upwards and reset, the return spring 10 causes the slide 9 to move the top block 11 upwards. The top block 11 is moved until it slides to the top of the trimming groove 6, thereby ejecting the railway parts from the trimming groove 6. At this point, the trimmed railway parts can be easily removed, greatly simplifying the unloading steps of the trimmed railway parts, saving operation time, and improving the efficiency of trimming. A push plate 12 is slidably connected to one side of the trimming mold base 5, and the push plate 12 slides in contact with the top of the trimming mold base 5. A storage box 13 is provided on the other side of the trimming mold base 5 to cooperate with the push plate 12. With this structure, after the top block 11 ejects the railway parts onto the trimming mold base 5, the lateral sliding of the push plate 12 pushes the railway parts on the trimming mold base 5 to the other side, so that the trimmed railway parts automatically fall into the storage box 13. There is no need for manual unloading of the trimmed railway parts, which greatly reduces the workload of trimming operations and improves the efficiency and convenience of trimming operations.
Claims
1. A cutting device for railway fittings, comprising a frame (1), a fixed seat (2) provided below the frame (1), a movable seat (3) slidably connected to the frame (1) along the vertical direction, and a hydraulic column (4) provided on the frame (1) for driving the movable seat (3) to slide vertically, characterized in that: The fixed base (2) is provided with a trimming mold base (5), the top of the trimming mold base (5) is provided with a trimming groove (6), the bottom of the movable base (3) is provided with a trimming module (7) used in conjunction with the trimming groove (6), the bottom of the trimming groove (6) is provided with a communicating movable groove (8), a slide (9) is slidably connected in the vertical direction in the movable groove (8), a return spring (10) is provided between the slide (9) and the bottom of the movable groove (8), a top block (11) is provided on the slide (9), the top block (11) passes through the movable groove (8) and extends to the top of the trimming groove (6), a push plate (12) is slidably connected in the horizontal direction on one side of the trimming mold base (5), the push plate (12) slides in contact with the top of the trimming mold base (5), and a storage box (13) used in conjunction with the push plate (12) is provided on the other side of the trimming mold base (5).
2. The edge-cutting device for railway fittings according to claim 1, characterized in that: The movable groove (8) is symmetrically provided with guide rods (14), the guide rods (14) pass through the slide (9) and are slidably connected to it, and the reset spring (10) is sleeved on the outside of the guide rods (14).
3. The edge-cutting device for railway fittings according to claim 1, characterized in that: The bottom of the frame (1) is provided with multiple columns (15), which pass through the movable seat (3) and are slidably connected to it.
4. The edge-cutting device for railway fittings according to claim 1, characterized in that: The longitudinal section of the push plate (12) is an inverted L-shape. A telescopic rod (16) is provided on one side of the cutting mold base (5). The movable end of the telescopic rod (16) is connected to the vertical part of the inverted L-shape, and the horizontal part of the inverted L-shape slides in contact with the top of the cutting mold base (5).
5. The edge-cutting device for railway fittings according to claim 4, characterized in that: The movable end of the telescopic rod (16) is provided with a sliding sleeve (17), and the vertical part of the inverted L-shaped push plate (12) is slidably connected in the sliding sleeve (17). A compression spring (18) is provided between the vertical part of the inverted L-shaped push plate (12) and the bottom of the sliding sleeve (17).
6. The edge-cutting device for railway fittings according to claim 1, characterized in that: The storage box (13) is provided with a storage plate (19), and the storage plate (19) is provided with a plurality of chip leakage holes (20).
7. The edge-cutting device for railway fittings according to claim 1, characterized in that: The cross-sectional dimension of the top block (11) is smaller than that of the cutting groove (6).