Tool for machining casting handrail
By designing a casting handrail machining fixture that uses a hydraulically driven positioning clamp and positioning groove, the problems of poor fixing effect and low precision caused by cumbersome fixture replacement were solved. This enabled efficient and precise milling and chip collection, reduced the defect rate, and improved the cleanliness of the working environment.
Patent Information
- Application Number
- CN202423299673.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the current process of processing cast handrails, two sets of fixtures need to be frequently changed, resulting in poor fixing effect, low processing accuracy and efficiency, and high defect rate.
Design a tooling for machining cast handrails, which uses a positioning clamp driven by a hydraulic cylinder to cooperate with the positioning groove to achieve tight fixation of the handrail. Combined with a milling module and a vibration motor to collect debris, it improves machining accuracy and efficiency.
The tight fit between the positioning clamp and the positioning groove improves the milling accuracy and processing efficiency of the handrail, reduces the defect rate, and collects debris through the vibration motor to keep the equipment clean.
Smart Images
Figure CN223629925U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to foundry goods processing technical field, concretely relates to a tool for cast handrail processing. BACKGROUND
[0002] Handrails are designed to be grabbed by hand to provide safety or support, and are most commonly found on staircases and chairs, wherein the handrails on chairs are usually U-shaped, the handrails in the prior art are first bent upwards at the front and rear ends of the steel pipe during production, so that the whole handrail is U-shaped (as shown in Figure 5 ), then the rear end of the handrail is bent to a certain angle to the left or right (as shown in Figure 6 ), and finally the cast handrail is clamped by a clamp, and the upper end of the rear side of the handrail is milled by a milling module to a specified size.
[0003] However, in actual use, there are two situations of left bending and right bending at the rear end of the handrail, in order to facilitate clamping and fixing, two sets of clamps are usually required, but the two sets of clamps need to be replaced frequently during use, and the replacement and debugging process is relatively cumbersome, in order to improve efficiency, the positioning groove inside the clamp is widened, so that there is a gap between the positioning groove and the handrail (as shown in Figure 7 ), so that the two handrails can be used together, but this will result in poor fixing effect of the handrail, reduce the processing precision of the handrail, and increase the rate of defective products, and thus an improved tool is needed that can improve processing efficiency, improve processing precision and reduce defective products.
[0004] Therefore, it is necessary to invent a tool for cast handrail processing to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing a tool for cast handrail processing to solve the problem of the urgent need for a tool that can improve processing efficiency, improve processing precision and reduce defective products in the prior art.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tool for cast handrail processing, comprising a processing platform and a handrail body, the rear end of the processing platform is fixedly connected with a mounting frame, the upper end of the mounting frame is fixedly installed with a milling module, the inner side of the processing platform is provided with a positioning assembly, the positioning assembly comprises a first fixed block, a hydraulic cylinder, a second fixed block, a first mounting plate, a second mounting plate, a positioning clamp plate and a positioning groove, the surfaces of the first mounting plate and the second mounting plate are fixedly connected with the positioning clamp plate, the positioning groove is opened on the surface of the positioning clamp plate, and the diameters of the front end and the upper end of the positioning groove are the same as the outer diameter of the handrail body.
[0007] By adopting the technical scheme, the handrail body not bent to the left and right sides is placed between the two groups of positioning clamping plates, the hydraulic cylinder pushes the left positioning clamping plate to the right, and the left positioning clamping plate is fixed and clamped with the right positioning clamping plate, the diameter of the front end and the upper end of the positioning groove is the same as the outer diameter of the handrail body, so that the two groups of positioning clamping plates can tightly fix the handrail body, the milling module mills the upper end of the rear side of the handrail body, and then the rear end of the handrail body is bent to the left or to the right, so that the milling precision of the handrail body is effectively improved, and the processing efficiency of the handrail body is improved.
[0008] Optionally, the surface of the two groups of positioning clamping plates is provided with a threaded hole, and the threaded hole is internally and threadedly connected with a locking screw.
[0009] Optionally, the surface of the first mounting plate and the second mounting plate is provided with two groups of mounting holes, and the locking screw is inserted into the mounting hole.
[0010] By adopting the technical scheme, the locking screw is threadedly connected with the mounting hole and the threaded hole, and the positioning clamping plate is fixed on the side surface of the first mounting plate and the second mounting plate, and the position of the positioning clamping plate can be adjusted by slightly loosening the locking screw.
[0011] Optionally, the first fixing block is fixedly connected with the left side of the inner bottom wall of the processing platform, the hydraulic cylinder is fixedly installed on the upper surface of the first fixing block, and the right end of the telescopic rod in the hydraulic cylinder is fixedly connected with the first mounting plate.
[0012] By adopting the technical scheme, the telescopic rod in the hydraulic cylinder pushes the first mounting plate to slide left and right.
[0013] Optionally, the second fixing block is fixedly connected with the right side of the inner bottom wall of the processing platform, and the left surface of the second fixing block is fixedly connected with the second mounting plate.
[0014] By adopting the technical scheme, the handrail body is clamped on the surface of the right positioning clamping plate, then the first mounting plate drives the left positioning clamping plate to slide right during the sliding process, and the two groups of positioning clamping plates are clamped and fixed on the handrail body.
[0015] Optionally, two groups of guide rods are fixedly connected between the first fixing block and the second fixing block, two groups of guide rings are fixedly connected to the lower end of the first mounting plate, and the guide ring is slidably connected with the guide rod.
[0016] By adopting the technical scheme, the guide ring slides on the surface of the guide rod during the sliding process of the first mounting plate, so that the stability of the positioning clamping plate during the sliding process is improved.
[0017] Optionally, a discharging groove is formed in the middle position of the inner bottom wall of the processing platform, and guide grooves are formed in the positions of the left and right sides of the inner bottom wall of the processing platform.
[0018] By adopting the technical scheme, the discharge chute is used for collecting the milling debris.
[0019] Optionally, a support frame is fixedly connected to the lower side of the discharge chute at the position of the lower surface of the processing platform, a collecting box is slidably connected to the inside of the support frame, and a vibration motor is fixedly installed at the right end of the processing platform.
[0020] By adopting the technical scheme, the vibration motor drives the processing platform to vibrate, the debris in the processing platform slides to the discharge chute through the guide chute, and then falls into the collecting box, thereby improving the debris collection efficiency.
[0021] In the above technical scheme, the technical effects and advantages of the utility model are provided:
[0022] 1. The utility model discloses a first end of the rear end of the handrail body is not bent left and right, and the rear end of the handrail body is bent left and right after milling, and the two groups of positioning clamps in the positioning groove are used to clamp and fix the lower cross bar and the rear vertical rod in the handrail body during the milling process of the handrail body not being bent left and right, so that the stability during the milling process is improved, the milling precision is increased, and the product processing efficiency is improved.
[0023] 2. The utility model discloses a discharge chute is used for collecting a large amount of debris generated during milling, and a vibration motor is used to drive the processing platform to vibrate, so that the debris scattered around slides into the discharge chute, the debris on the surface of the equipment is collected, and the cleanness of the working environment is improved. DRAWINGS
[0024] Figure 1 It is the whole structure schematic diagram of the utility model;
[0025] Figure 2 It is the positioning assembly structure schematic diagram of the utility model;
[0026] Figure 3 It is the mounting plate structure schematic diagram of the utility model;
[0027] Figure 4 It is the positioning clamping plate and handrail body connecting structure schematic diagram of the utility model;
[0028] Figure 5 It is the handrail body structure schematic diagram of the utility model Figure 1 (the rear end is not bent state);
[0029] Figure 6 It is the handrail body structure schematic diagram of the utility model Figure 2 (the rear end is bent state);
[0030] Figure 7 It is a traditional positioning clamping plate and handrail body connecting structure schematic view of the utility model.
[0031] Mark explanation:
[0032] 1, processing platform; 11, mounting bracket; 12, milling module; 13, discharge chute; 14, material guide groove; 15, support frame; 16, material collecting box; 17, vibration motor; 2, first fixed block; 21, hydraulic cylinder; 22, second fixed block; 23, guide rod; 24, first mounting plate; 25, second mounting plate; 26, mounting hole; 27, guide ring; 3, positioning clamping plate; 31, positioning groove; 32, threaded hole; 4, handrail body. Specific implementation
[0033] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below with the help of the drawings.
[0034] The utility model provides a kind of tool for casting handrail processing as Figures 1 to 4 As shown in a kind of tool for casting handrail processing, including processing platform 1 and handrail body 4, the rear end of processing platform 1 is fixedly connected with mounting bracket 11, and the upper end of mounting bracket 11 is fixedly installed with milling module 12, and the middle position of the inner bottom wall of processing platform 1 is provided with discharge chute 13, and the position of the inner bottom wall of processing platform 1 is provided with material guide groove 14 on the left and right sides of discharge chute 13, and the lower surface of processing platform 1 is fixedly connected with support frame 15 at the position of the lower side of discharge chute 13, and support frame 15 is slidably connected with material collecting box 16 in the inside, and vibration motor 17 is fixedly installed on the right end of processing platform 1, and the inside of processing platform 1 is provided with positioning assembly, and positioning assembly includes first fixed block 2, hydraulic cylinder 21, second fixed block 22, first mounting plate 24, second mounting plate 25, positioning clamping plate 3 and positioning groove 31.
[0035] Among them, in the use process, the handrail body 4 not left and right bending is fixedly clamped by using two positioning clamping plates 3, then milling module 12 mills the upper end of the rear side of handrail body 4, and the upper end of the rear side is milled to specified height, in the milling process, a large amount of chippings generated by milling will directly fall into the inside of discharge chute 13, and then directly slide into the inside of material collecting box 16, and a small part of chippings will scatter on the surface and around positioning assembly, after a period of milling, vibration motor 17 is started, and the surface of processing platform 1 is vibrated by vibration motor 17, and the chippings scattered on the surface are shaken to the inside of discharge chute 13 through material guide groove 14, and then slide to the inside of material collecting box 16 through discharge chute 13, so that the chippings are collected, the cleanliness of the surface of processing platform 1 is effectively maintained, when the inside of material collecting box 16 is full of chippings, material collecting box 16 can be directly extracted to the outside, and the chippings in the inside of material collecting box 16 can be cleaned.
[0036] Referring to Figures 2 to 4 The surface of the first mounting plate 24 and the second mounting plate 25 is fixedly connected with a positioning clamping plate 3, a positioning groove 31 is arranged on the surface of the positioning clamping plate 3, the diameter of the front end and the upper end of the positioning groove 31 is the same as the outer diameter of the handrail body 4, two groups of threaded holes 32 are arranged on the surface of the two positioning clamping plates 3, and lock screws are threadedly connected in the threaded holes 32; two groups of mounting holes 26 are arranged on the surface of the first mounting plate 24 and the second mounting plate 25, the lock screws are inserted into the mounting holes 26, the first fixed block 2 is fixedly connected to the left side of the inner bottom wall of the machining platform 1, the hydraulic cylinder 21 is fixedly installed on the upper surface of the first fixed block 2, the right end of the telescopic rod in the hydraulic cylinder 21 is fixedly connected to the first mounting plate 24, the second fixed block 22 is fixedly connected to the right side of the inner bottom wall of the machining platform 1, the left surface of the second fixed block 22 is fixedly connected to the second mounting plate 25, two groups of guide rods 23 are fixedly connected between the first fixed block 2 and the second fixed block 22, and two groups of guide rings 27 are fixedly connected to the lower end of the first mounting plate 24; the guide ring 27 is slidably connected to the guide rod 23.
[0037] In addition, in the process of fixing the handrail body 4 without left and right bending, the telescopic rod in the hydraulic cylinder 21 is retracted inward, thereby driving the first mounting plate 24 to slide to the left, driving the left positioning clamping plate 3 to slide to the left, and then clamping the rear half of the handrail body 4 in the positioning groove 31 on the surface of the right positioning clamping plate 3; at this time, the telescopic rod in the hydraulic cylinder 21 is pushed out, driving the first mounting plate 24 and the left positioning clamping plate 3 to slide to the right until the surfaces of the two groups of positioning clamping plates 3 are completely attached; at this time, the two groups of positioning clamping plates 3 cooperate to clamp and fix the handrail body 4, and at the same time, since the inner diameter of the positioning groove 31 is the same as the outer diameter of the handrail body 4, the stability of the handrail body 4 is effectively improved, the machining precision of the handrail body 4 is improved, and the error is reduced to within 0.3 mm.
[0038] At the same time, the first mounting plate 24 drives the guide ring 27 to slide on the surface of the guide rod 23, effectively improving the stability of the first mounting plate 24 and the left positioning clamping plate 3 during movement, and the guide ring 27 is internally provided with a bearing, effectively improving the smoothness of movement.
[0039] Specifically, the processing steps of the handrail body 4 are as follows:
[0040] S1, cut the steel pipe to a specified length, and then punch holes on the surface of the steel pipe at a specified distance;
[0041] S2, the front end and the rear end of the steel pipe are bent upward to a specified angle by using the up-down bending device to form the outline of the handrail body 4;
[0042] S3, the steel pipe after up-down bending is taken down, and the positioning assembly in the device is used to clamp and fix the rear half of the steel pipe;
[0043] S4, the milling module 12 mills the upper end of the rear side of the steel pipe;
[0044] S5, the milled steel pipe is taken down and placed in the left and right bending equipment for left and right bending.
[0045] The working principle of the utility model is: firstly, the process of the handrail body 4 is adjusted, then the handrail body 4 which is not bent left and right is clamped and fixed by cooperating with the device, then the upper end of the rear side is milled, then the rear end of the handrail body 4 after milling is bent left and right, then the lower side cross bar and the rear side vertical bar of the handrail body 4 can be clamped and fixed by the positioning groove 31 with the same outer diameter, the stability of the handrail body 4 in the milling process is effectively improved, the milling precision of the handrail body 4 is improved, the product production efficiency is improved, and in the milling process, the discharge chute 13 collects the generated debris, effectively improves the debris collection efficiency, and improves the cleanliness of the surface of the processing platform 1.
[0046] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model.
Claims
1. A tool for processing a cast handrail, comprising a processing platform (1) and a handrail body (4), characterized in that: The rear end of the machining platform (1) is fixedly connected with a mounting rack (11), a milling module (12) is fixedly installed at the upper end of the mounting rack (11), the inner side of the machining platform (1) is provided with a positioning assembly, and the positioning assembly comprises a first fixed block (2), a hydraulic cylinder (21), a second fixed block (22), a first mounting plate (24), a second mounting plate (25), a positioning clamping plate (3) and a positioning groove (31), the surfaces of the first mounting plate (24) and the second mounting plate (25) are fixedly connected with the positioning clamping plate (3), the positioning groove (31) is formed in the surface of the positioning clamping plate (3), and the diameters of the front end and the upper end of the positioning groove (31) are the same as the outer diameter of the handrail body (4).
2. The jig for processing a cast handrail according to claim 1, wherein: The surfaces of the two positioning clamping plates (3) are provided with threaded holes (32), and the threaded holes (32) are in threaded connection with locking screws.
3. The jig for processing a cast handrail according to claim 2, wherein: The surfaces of the first mounting plate (24) and the second mounting plate (25) are provided with two groups of mounting holes (26), and the locking screws are inserted into the mounting holes (26).
4. The tooling for processing a cast handrail according to claim 1, wherein: The first fixed block (2) is fixedly connected with the left side of the inner bottom wall of the machining platform (1), the hydraulic cylinder (21) is fixedly installed on the upper surface of the first fixed block (2), and the right end of the telescopic rod in the hydraulic cylinder (21) is fixedly connected with the first mounting plate (24).
5. The tooling apparatus of claim 1, wherein: The second fixed block (22) is fixedly connected with the right side of the inner bottom wall of the machining platform (1), and the left surface of the second fixed block (22) is fixedly connected with the second mounting plate (25).
6. The tooling for processing a cast handrail according to claim 1, wherein: A plurality of guide rods (23) are fixedly connected between the first fixed block (2) and the second fixed block (22), a plurality of guide rings (27) are fixedly connected to the lower end of the first mounting plate (24), and the guide rings (27) are in sliding connection with the guide rods (23).
7. The tooling apparatus of claim 1, wherein: A discharging groove (13) is formed in the middle position of the inner bottom wall of the machining platform (1), and guide grooves (14) are formed in the positions of the inner bottom wall of the machining platform (1) on the left and right sides of the discharging groove (13).
8. The jig for processing a cast handrail according to claim 3, characterized in that: A supporting frame (15) is fixedly connected to the position of the lower surface of the machining platform (1) on the left side of the discharging groove (13), a collecting box (16) is in sliding connection with the inside of the supporting frame (15), and a vibration motor (17) is fixedly installed at the right end of the machining platform (1).