Center hole grinding machine
By employing coaxially arranged ejector pins and continuously variable speed motors in a center hole grinding machine, combined with elastic top pressure and self-centering clamping, the problems of grinding uniformity and coaxiality of ejector pin holes in cemented carbide materials are solved, achieving high-precision synchronous grinding and ensuring coaxiality.
CN224274378UActive Publication Date: 2026-05-26WEIHAI HONGYU CNC MASCH TOOL CO LTD
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Patent Information
- Application Number
- CN202521199083.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-06-12
AI Technical Summary
Technical Problem
Traditional methods cannot effectively guarantee the uniformity and coaxiality of the grinding of pin holes in cemented carbide materials, resulting in roundness errors and coaxiality problems.
Method used
The system employs coaxially arranged front and rear machining ejectors, combined with a continuously variable motor-driven dial and an elastic pressing assembly, to achieve synchronous grinding of the two electrode machining holes. The coaxiality is ensured by a self-centering clamping assembly.
Benefits of technology
It improves the grinding uniformity and precision of electrode machining holes, ensures the coaxiality of the center hole, and enhances the stability and accuracy of machining.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a center hole grinding machine, and belongs to the technical field of material machining. Comprising a sliding rail body, a head ejector pin seat, a tail ejector pin seat, a front machining ejector pin, a rear machining ejector pin and a heart-shaped clamp, wherein the head ejector pin seat and the tail ejector pin seat are oppositely arranged at the two ends of the sliding rail body and slidably connected with the sliding rail body through sliding blocks; the front machining ejector pin is fixed to the inner side of the head ejector pin seat; the rear machining ejector pin is located in the tail ejector pin seat; the sliding block is provided with a fastening piece, the tail ejector pin base is provided with an elastic ejecting and pressing assembly for driving the rear machining ejector pin to move in the axial direction, the outer side of the front machining ejector pin is rotationally connected with a driving plate through a bearing, and a driving rod used for driving the heart-shaped clamp to rotate coaxially is fixed to the driving plate. And a stepless speed change motor for driving the driving plate to rotate is mounted on the head ejector pin seat. According to the utility model, the grinding uniformity and the machining precision of the two electrode machining holes are improved, and the coaxiality of the center hole after grinding is ensured.
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