A chip-removing angle milling head for an external pressure structure
By using an external pressure structure design and an anti-chip jamming angle milling head with built-in springs and O-rings, the problem of poor sealing of the positioning mechanism is solved, achieving higher sealing performance and positioning accuracy, and ensuring machining stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU GULF PRECISION TECH CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-05
AI Technical Summary
The existing positioning mechanism of the angle milling head has poor sealing performance, which can easily lead to installation failure due to chip jamming, and may damage the machine tool and the angle head.
It adopts an external pressure structure design with built-in springs and O-rings to enhance sealing. It uses elastic compensation for positioning gaps and precision positioning pins and inner holes of the levers for positioning to avoid chip jamming.
It improves the sealing and positioning accuracy of the milling head, avoids assembly failures caused by chip jamming, and ensures smooth processing progress.
Smart Images

Figure CN224322407U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milling equipment technology, specifically to an external pressure structure anti-chip jamming angle milling head. Background Technology
[0002] During machining, especially when using angle milling heads to machine complex angles, chips tend to accumulate inside or around the milling head, causing chip jamming. This not only affects machining efficiency but may also damage the milling head and machine tool. In the future, these milling heads will develop towards higher precision, stronger stability, and better heat dissipation. At the same time, in order to meet the machining needs of different fields, more angle milling heads with special functions and performance will emerge.
[0003] The existing technology still has the following drawbacks in its use:
[0004] The positioning mechanism in the existing technology has design flaws and poor sealing performance. In harsh processing environments, there is a risk that the positioning mechanism will get stuck when processing fine iron filings. If the positioning mechanism gets stuck, it will lead to installation failure, which may eventually damage the machine tool and the angle head, thus delaying the processing progress.
[0005] In view of this, we propose an external pressure structure anti-chip jamming angle milling head to solve the existing problems. Utility Model Content
[0006] The purpose of this invention is to provide an external pressure structure anti-chip jamming angle milling head to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an external pressure structure anti-chip jamming angle milling head, including a tool holder, a clamping ring installed on the tool holder, a first positioning pin and a second positioning pin provided inside the lower end of the clamping ring, a positioning key connected to the rear end of the first positioning pin, an auxiliary spring installed on the first positioning pin near the positioning key, the lower end of the second positioning pin and the positioning key being connected, and a main spring installed between the second positioning pin and the positioning key, an O-ring provided near the positioning key end of the main spring, and guide pins provided at both ends of the main spring.
[0008] Preferably, one end of the handle is connected to a mounting ring, and the other end of the handle is connected to a positioning ring.
[0009] Preferably, an internal hexagon screw is installed through the lower end of the clamping ring, and the clamping ring and the second positioning pin are connected and fixed by the internal hexagon screw.
[0010] Preferably, the outer ring of the mounting ring is uniformly provided with graduations.
[0011] Preferably, the upper end of the clamping ring is provided with a groove and a fixing mechanism, and the clamping ring is fixed by the groove and the fixing mechanism.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model improves the positioning mechanism by incorporating a built-in spring and adding an O-ring to prevent exposed corrosion. The increased spring length and pitch enhance elasticity. The built-in spring presses against the lever from the inside, preventing positioning gaps during upward pushing and providing real-time compensation. A precision positioning pin is used to position the lever within its inner hole. Without altering the function, this significantly increases sealing, preventing fine iron filings from jamming the positioning mechanism and eliminating the possibility of installation failure. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 3 This is a three-dimensional internal structure diagram of the present invention.
[0017] In the diagram: 1. Tool holder; 2. Fixing mechanism; 3. Clamping ring; 4. Mounting ring; 5. First positioning pin; 6. Second positioning pin; 7. Auxiliary spring; 8. Positioning key; 9. Positioning ring; 10. Guide pin; 11. O-ring; 12. Main spring; 13. Socket head screw. Detailed Implementation
[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] Example 1
[0020] like Figure 1 , Figure 2 and Figure 3As shown, this utility model proposes an external pressure structure anti-chip jamming angle milling head, including a tool holder 1. A clamping ring 3 is installed on the tool holder 1. The clamping ring 3 is used to facilitate the connection between the tool holder 1 and the lower positioning component. A first positioning pin 5 and a second positioning pin 6 are provided inside the lower end of the clamping ring 3. The first positioning pin 5 is used to stabilize the position of the clamping ring 3. A positioning key 8 is connected to the rear end of the first positioning pin 5. An auxiliary spring 7 is installed on the first positioning pin 5 near the positioning key 8. The auxiliary spring 7 is used to assist the positioning of the first positioning pin 5, providing a certain elastic support to ensure the positioning accuracy of the milling head, and can... To reduce positioning errors caused by vibration or impact, the lower ends of the second positioning pin 6 and the positioning key 8 are connected, and a main spring 12 is installed between the second positioning pin 6 and the positioning key 8. The main spring 12 is used to assist the connection between the second positioning pin 6 and the positioning key 8, absorb the load and vibration of the milling head, and protect the positioning mechanism. An O-ring 11 is provided at one end of the main spring 12 near the positioning key 8. The O-ring 11 can effectively prevent the spring from being exposed, increase the spring length and pitch, and enhance elasticity. Guide pins 10 are provided at both ends of the main spring 12, and the guide pins 10 can stabilize the position of the spring.
[0021] Furthermore, one end of the tool holder 1 is connected to a mounting ring 4, and the other end of the tool holder 1 is connected to a positioning ring 9. The mounting ring 4 can be used to observe the rotation angle of the tool holder 1, and the positioning ring helps to improve the machining accuracy.
[0022] Furthermore, an internal hex screw 13 is installed through the lower end of the clamping ring 3. The clamping ring 3 and the second positioning pin 6 are connected and fixed by the internal hex screw 13. The internal hex screw 13 can strengthen the connection between the clamping ring 3 and the second positioning pin 6.
[0023] Furthermore, the outer ring of the mounting ring 4 is evenly marked with graduations to observe the rotation angle of the tool holder 1.
[0024] Furthermore, the upper end of the clamping ring 3 is provided with a groove and a fixing mechanism 2. The clamping ring 3 is fixed by the groove and the fixing mechanism 2. The fixing mechanism 2 can effectively fix the clamping ring 3 to the tool holder 1.
[0025] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. An external pressure structure anti-chip jamming angle milling head, comprising a tool holder (1), characterized in that: A clamping ring (3) is installed on the handle (1). A first positioning pin (5) and a second positioning pin (6) are provided inside the lower end of the clamping ring (3). A positioning key (8) is connected to the rear end of the first positioning pin (5). An auxiliary spring (7) is installed on the first positioning pin (5) near the positioning key (8). The lower ends of the second positioning pin (6) and the positioning key (8) are connected. A main spring (12) is installed between the second positioning pin (6) and the positioning key (8). An O-ring (11) is provided on the end of the main spring (12) near the positioning key (8). Guide pins (10) are provided on both ends of the main spring (12).
2. The external pressure structure anti-chip jamming angle milling head according to claim 1, characterized in that: One end of the handle (1) is connected to a mounting ring (4), and the other end of the handle (1) is connected to a positioning ring (9).
3. The external pressure structure anti-chip jamming angle milling head according to claim 1, characterized in that: The lower end of the clamping ring (3) is fitted with an internal hexagon screw (13), and the clamping ring (3) and the second positioning pin (6) are connected and fixed by the internal hexagon screw (13).
4. The external pressure structure anti-chip jamming angle milling head according to claim 2, characterized in that: The outer ring of the mounting ring (4) is uniformly marked with graduations.
5. The external pressure structure anti-chip jamming angle milling head according to claim 1, characterized in that: The upper end of the clamping ring (3) is provided with a groove and a fixing mechanism (2), and the clamping ring (3) is fixed by the groove and the fixing mechanism (2).