Grinding machine center for roller machining
By designing the top of the grinder for roll processing and using conical and round-shaped structures, the rolling roll problem that the top of the existing grinder cannot process the end holes, achieving process integration and production efficiency improvement.
Patent Information
- Application Number
- CN202421724072.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The top tip of existing grinders cannot process rolls that have been processed in end holes, resulting in limited roll production and processing processes, low production efficiency and product quality.
A grinder top for roll processing is designed, and the conical structure and the round table structure are used to clamp the two ends of the roll, so as to realize the finished product process of grinding the roll after turning and milling end holes.
The top of the grinder allows the grinder to process the rolls after turning and milling end holes, integrate the process, improve production efficiency, avoid bumping the roller neck, and improve product surface quality.
Smart Images
Figure CN222958329U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of roll production, and particularly relates to a grinder center for roll processing. Background Art
[0002] At present, the roll production and processing process: precision turning → double-sided milling and milling flat → deep hole / vertical hole → platform scribing keyway line (long keyway) → end face milling and milling groove → flange hole → grinding finished product → ring insertion → turning and milling end hole → milling crescent groove → flat end face / tapping hole → inspecting finished product.
[0003] The processing process is arranged according to the workshop layout:
[0004] Precision turning across processes: precision turning, double-sided milling and milling flat, deep hole / vertical hole, platform scribing keyway line.
[0005] Rough turning across: end face milling and milling groove, milling crescent groove.
[0006] Grinder across processes: grinding finished product, ring insertion.
[0007] Precision turning across processes: turning end hole.
[0008] Grinder across: flat end face / tapping hole.
[0009] Cold across processes: inspecting finished product.
[0010] Producing and processing 1 roll requires the flatbed to cross the workshop 4 - 6 times repeatedly. During the hoisting / crossing process, there are often problems such as untimely hoisting of roll parts, unsmooth crane operation, occupation of the flatbed, and blockage of the flatbed track by finished products shipped across the logistics area, resulting in low production efficiency. During the flatbed crossing process, when the crane / ground operator hoists and lowers the load, the ground and polished finished roll is sometimes knocked and damaged, affecting the product quality. If there are dents on the roll body, it needs to be sent back to the grinder for repair, which restricts the progress of finished product warehousing.
[0011] Especially for the roll after grinding the finished product, when processing the end hole of the roll on a large heavy horizontal lathe or boring and milling machine, the chamfer of the end hole is 2×45°. There are sometimes indentations / scratches or abrasions on some roller neck and roller support parts, and polishing treatment is required for rework. However, the existing grinder center can only process rolls that have not undergone end hole processing, and thus cannot change the roll processing process. Summary of the Invention
[0012] The purpose of the utility model is to provide a grinder center for roll processing, which can perform the process of grinding the finished product on the roll after turning and milling the end hole, change the roll production and processing process, and improve the roll production efficiency.
[0013] To achieve the above purpose, the utility model is realized through the following technical solutions:
[0014] A grinder center for roll processing, comprising a positioning part, a connecting part, and a transfer shaft. The positioning part, the connecting part, and the transfer shaft are coaxially arranged. The front end of the positioning part is a conical structure, the rear end of the positioning part is fixedly connected to the connecting part, and the transfer shaft is fixedly connected to the connecting part; the front end of the connecting part is a frustum-shaped structure, and the diameter of the upper bottom surface of the frustum-shaped structure is larger than the diameter of the bottom surface of the conical structure.
[0015] The positioning part, the connecting part, and the transfer shaft are of an integral structure.
[0016] The rear end of the positioning part is a cylindrical structure.
[0017] The apex angle of the conical structure is 70° - 80°.
[0018] The apex angle of the frustum-shaped structure is 45° - 65°.
[0019] The connecting part is circumferentially provided with through holes.
[0020] The rear end of the connecting part is a large frustum-shaped structure, and the diameter of the upper bottom surface of the large frustum-shaped structure is larger than the diameter of the lower bottom surface of the frustum-shaped structure at the front end of the connecting part.
[0021] Compared with the prior art, the beneficial effects of the present utility model are:
[0022] The grinder center for roll processing uses the conical structure at the front end and the frustum-shaped structure of the connecting part to respectively hold and clamp the two ends of the roll, realizing that the center of the same structure holds and clamps the ends of rolls with different structures, enabling the grinder to perform the finishing process on the roll after turning and milling the end holes. Furthermore, the processes carried out across the grinder are integrated together, and the roll can be directly inspected after being processed by the grinder, avoiding bumps on the roll neck and improving the surface quality of the roll product.
[0023] After using the grinder center for roll processing, the roll processing flow can be optimized, the roll processing and manufacturing cycle can be shortened, the number of overhead crane hoists and flat car transfers can be reduced, and the production cost can be lowered. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 is the front view of the present utility model.
[0025] Figure 2 is the side view of the present utility model.
[0026] Figure 3 is the schematic diagram of the working state of the present utility model.
[0027] Figure 4 is the schematic diagram of the roll end structure.
[0028] In the figure: 1 - positioning part; 2 - connecting part; 3 - adapter shaft; 4 - grinder center; 5 - roll; 6 - grinder; 7 - through hole; 8 - end hole; 9 - top hole; 21 - frustum-shaped structure; 22 - large frustum-shaped structure. Specific embodiments
[0029] The present utility model will be described in detail below with reference to the accompanying drawings of the specification. However, it should be noted that the implementation of the present utility model is not limited to the following embodiments.
[0030] See Figures 1-3 , a grinder center for roll processing, comprising a positioning part 1, a connecting part 2, and an adapter shaft 3. The positioning part 1, the connecting part 2, and the adapter shaft 3 are coaxially arranged. The front end of the positioning part 1 is a conical structure, and the rear end of the positioning part 1 is a cylindrical structure. The rear end of the positioning part 1 is fixedly connected to the connecting part 2, and the adapter shaft 3 is fixedly connected to the connecting part 2; the front end of the connecting part 2 is a frustum-shaped structure 21, and the diameter of the upper bottom surface of the frustum-shaped structure 21 is larger than the diameter of the bottom surface of the conical structure.
[0031] Among them, the positioning part 1, the connecting part 2, and the adapter shaft 3 are of an integral structure, and the grinder center 4 can be integrally processed. The connecting part 2 is circumferentially provided with a through hole 7 for connecting to the grinder 6 through a bolt.
[0032] The apex angle of the frustum-shaped structure 21 is 45° - 65°, preferably 60°. The positioning part 1 extends into the end hole 8. The tapered surface of the side of the frustum-shaped structure 21 contacts the chamfered surface of the end hole 8 at one end of the roll 5. The chamfer of the end hole 8 of the roll 5 is modified to 5×60° to increase the contact area with this center and improve the firmness of clamping. The apex angle of the conical structure of the positioning part 1 is 70° - 80°, preferably 75°, which matches the top hole 9 at the other end of the roll 5.
[0033] The rear end of the connecting part 2 is a large frustum-shaped structure 22, and the diameter of the upper bottom surface of the large frustum-shaped structure 22 is larger than the diameter of the lower bottom surface of the frustum-shaped structure 21 at the front end of the connecting part 2. The apex angle of the large frustum-shaped structure 22 can be the same as the apex angle of the frustum-shaped structure 21 at the front end of the connecting part 2, and the tapered surface of the large frustum-shaped structure 22 can also contact the chamfered surface of the end hole 8 at one end of the roll 5.
[0034] See Figures 1-4, after the work roll 5 undergoes the processes of precision turning → double-sided milling to mill flat → deep hole / vertical hole → platform scribing keyway line → end face milling to mill groove → flange hole → turning and milling end hole 8 (the chamfer of end hole 8 is 5×60°) → milling crescent groove → ring insertion → flat end face / tapping, it is moved to the MCK84125 grinding machine. The grinding machine 6 is equipped with the grinding machine centers 4 at both the head and the tail. The work roll 5 is hoisted to the grinding machine 6 by a crane. At the end of the work roll 5 with the end hole 8, the chamfer of the end hole 8 abuts against the conical structure 21 of the connecting part 2. The grinding machine center 4 at the tail of the grinding machine 6 abuts against the end of the work roll 5 with the top hole 9, fixing the work roll 5. After the work roll 5 is mounted on the machine, alignment is carried out. The dial indicator is used for alignment, and the circular runout < 0.05 mm. It is trial-rotated for 2 minutes. After confirming that the work roll 5 does not move axially, the machining continues.
[0035] The utility model uses the conical structure at the front end and the conical structure 21 of the connecting part 2 to respectively hold and clamp the two ends of the work roll 5, realizing that the centers of the same structure hold and clamp the ends of the work rolls 5 with different structures. The holding and clamping operation is simple, meeting the precision requirements of the machining process of the work roll 5.
[0036] Using the center of the utility model enables the grinding machine 6 to carry out the finished grinding process on the work roll 5 after turning and milling the end hole 8, thus integrating the processes carried out in the grinding machine bay together. After the grinding machine 6 finishes machining, the finished product can be directly inspected, avoiding neck knocking of the roll, improving the surface quality of the work roll 5 product, and greatly reducing the rejection rate.
[0037] After adopting the utility model, the machining process of the work roll 5 can be optimized, the machining and manufacturing cycle of the work roll 5 can be shortened, the number of crane hoisting times and the number of flat car transfer times can be reduced, and the production cost can be lowered.
Claims
1. A grinding machine tip for roller processing, characterized in that: It includes a positioning part, a connecting part, and a transfer shaft. The positioning part, the connecting part, and the transfer shaft are coaxially arranged. The front end of the positioning part is a conical structure. The rear end of the positioning part is fixedly connected to the connecting part. The transfer shaft is fixedly connected to the connecting part. The front end of the connecting part is a truncated cone structure. The upper bottom surface diameter of the truncated cone structure is larger than the bottom surface diameter of the conical structure.
2. A grinding machine tip for roller processing according to claim 1, characterized in that: The positioning part, the connecting part and the transfer shaft are an integrated structure.
3. The grinding machine tip for roller processing according to claim 1, characterized in that: The rear end of the positioning part is a cylindrical structure.
4. A grinding machine tip for roller machining according to claim 1, characterized in that: The top angle of the conical structure is 70° to 80°.
5. The grinding machine tip for roller processing according to claim 1, characterized in that: The top angle of the truncated cone structure is 45° to 65°.
6. A grinding machine tip for roller processing according to claim 1, characterized in that: The connecting portion is provided with through holes in the circumference.
7. A grinding machine tip for roller processing according to claim 1, characterized in that: The rear end of the connecting part is a large truncated cone structure, and the upper bottom surface diameter of the large truncated cone structure is larger than the lower bottom surface diameter of the truncated cone structure at the front end of the connecting part.