Square hole milling tool for side wall barrier strip
By designing a milling fixture for sidewall retaining bars, the machine tooling uses a base and clamping blocks to restrict the degree of freedom of the parts, solving the problems of low milling accuracy and inconvenient clamping, and achieving efficient machining.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG FUYONGQIN MASCH TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-04-17
AI Technical Summary
The side wall retaining strip is prone to deformation during the milling process, resulting in low machining accuracy and inconvenient clamping, which affects work efficiency.
A milling fixture for square holes was designed, comprising a base, a Y-axis boss, left and right support planes, and clamping blocks. The Y-axis boss and clamping blocks restrict the degree of freedom of the parts, and a compression spring is used to achieve simple clamping and quick unloading.
It improves milling accuracy, simplifies the clamping process, and significantly increases machining efficiency.
Smart Images

Figure CN224129203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aerospace component manufacturing technology, specifically to a tooling for milling square holes for sidewall retaining strips. Background Technology
[0002] Sidewall strips are generally used to fill the tiny gaps between engine sidewall components to prevent gas leakage. They can also be used to protect internal engine components such as pipelines and sensors from high-temperature combustion gas impacts, mechanical vibrations, or foreign object impacts. Due to their reliability, safety, and convenience, sidewall strips are widely used in industrial systems. Their main functions are sealing, protection, assisting installation, and positioning, thereby meeting the needs of industrial production.
[0003] However, the side wall retainer has a thin wall thickness and a special shape. If the clamping is not done properly or the cutter arm swings, the side wall retainer is prone to deformation during the square hole process. The vibration of the part during the machining process greatly affects the milling accuracy. Utility Model Content
[0004] The purpose of this utility model is to provide a reasonably structured and reliable tooling for milling square holes in sidewall retaining strips, which solves the problem of low milling accuracy in sidewall retaining strips. On the one hand, by restricting the degree of freedom of the parts, the milling accuracy is significantly improved. On the other hand, the operation is simple and the clamping is convenient, making the processing of the parts easy and significantly improving work efficiency.
[0005] The technical solution of this utility model is:
[0006] A milling fixture for sidewall retaining strips includes a base. The key technical features are: a Y-shaped boss of equal length to the base and used for support in the central protrusion of the sidewall retaining strip is provided on the upper surface of the base; a left support plane and a right support plane are formed on both sides of the Y-shaped boss on the upper surface of the base; two parallel left X-shaped T-slots are provided on the upper surface of the left support plane, and a left clamping block is assembled using these left X-shaped T-slots; the bottom of the left clamping block has a left X-shaped slider that mates with the left X-shaped T-slots, and a left reducing groove near the Y-shaped boss; the upper surface of the right support plane has two parallel left X-shaped T-slots. Two right X-direction T-slots are arranged in a row, and a right clamping block is assembled using the right X-direction T-slots. The bottom of the right clamping block is provided with a right X-direction slider that mates with the right X-direction T-slot, and a right reduction groove near the Y-direction boss. The left reduction groove and the left support plane form a left positioning space for the left horizontal edge of the corresponding side wall baffle. The right reduction groove and the right support plane form a right positioning space for the right horizontal edge of the corresponding side wall baffle. A left compression spring is provided between the inner end of the left X-direction T-slot and the left X-direction slider, and a right compression spring is provided between the inner end of the right X-direction T-slot and the right X-direction slider.
[0007] In the aforementioned milling fixture for the sidewall retainer, the width of the Y-direction boss is equal to the distance between the left and right sidewalls protruding from the center of the sidewall retainer.
[0008] The aforementioned milling fixture for sidewall retaining strips has two X-direction positioning grooves at the end of the left X-direction slider. Each left X-direction slider is connected to two left compression springs. One end of the left compression spring is inserted into and fixed in the X-direction positioning groove, and the other end abuts against the inner end face of the left X-direction T-shaped groove.
[0009] The aforementioned milling fixture for sidewall retaining strips has two X-direction positioning grooves at the end of the right X-direction slider. Each right X-direction slider is connected to two right compression springs. One end of the right compression spring is inserted into and fixed in the X-direction positioning groove, and the other end abuts against the inner end face of the right X-direction T-shaped groove.
[0010] The aforementioned milling fixture for sidewall retaining strips has a left X-shaped T-slot starting from the left side wall of the base and a right X-shaped T-slot starting from the right side wall of the base.
[0011] The beneficial effects of this utility model are:
[0012] 1. By restricting the freedom of the side wall baffles through the Y-axis boss of the base, the left and right support planes, and the left and right clamping blocks, the parts are clamped and positioned, while preventing them from deforming during the machining process and improving the milling accuracy.
[0013] 2. When using the left and right clamping blocks to hold the part in place, no bolts or other fasteners are needed. Simply insert the left X-axis slider at the bottom of the left clamping block into the left X-axis T-slot, and the right X-axis slider at the bottom of the right clamping block into the right X-axis T-slot. The left and right X-axis T-slots restrict the vertical position of the left and right clamping blocks, thus achieving the purpose of clamping the part. The operation is simple, clamping is convenient, making part processing easy and significantly improving work efficiency.
[0014] 3. After processing is completed, push the left and right clamping blocks in the opposite direction. With the help of the left and right compression springs, the left and right clamping blocks are quickly dismounted, making it easy to quickly remove the parts. Attached Figure Description
[0015] Figure 1 This is a diagram showing the working state of this utility model;
[0016] Figure 2 yes Figure 1 A bottom view;
[0017] Figure 3 This is a perspective view of the present invention;
[0018] Figure 4 This is a diagram showing the relative positions of the right clamping block and the side wall retaining strip of this utility model.
[0019] In the diagram: 1. Left clamping block, 101. Left X-axis slider, 102. Left reduction groove, 2. Side wall baffle, 201. Central protrusion, 3. Square hole, 4. Base, 401. Y-axis boss, 402. Left support plane, 403. Right support plane, 5. Right clamping block, 501. Right X-axis slider, 502. Right reduction groove, 503. X-axis positioning groove. Detailed Implementation
[0020] The present invention will be described in detail with reference to the accompanying drawings.
[0021] like Figures 1-4 As shown, the milling fixture for the sidewall retainer includes a base 4. A Y-shaped boss 401, of equal length to the base 4 and used for support within the central protrusion 201 of the sidewall retainer 2, is provided on the upper surface of the base 4. A left support plane 402 and a right support plane 403 are formed on both sides of the Y-shaped boss 401 on the upper surface of the base 4. In this embodiment, the width of the Y-shaped boss 401 is equal to the distance between the left and right sidewalls of the central protrusion 201 of the sidewall retainer 2.
[0022] The upper surface of the left support plane 402 is provided with two parallel left X-direction T-slots, and the left clamping block 1 is assembled using the left X-direction T-slots. The bottom of the left clamping block 1 is provided with a left X-direction slider 101 that cooperates with the left X-direction T-slots, and a left reduction groove 102 near the Y-direction boss 401. The upper surface of the right support plane 403 is provided with two parallel right X-direction T-slots, and the right clamping block 5 is assembled using the right X-direction T-slots. The bottom of the right clamping block 5 is provided with a right X-direction slider 501 that cooperates with the right X-direction T-slots, and a right reduction groove 502 near the Y-direction boss 401. The left reduction groove 102 and the left support plane 402 form a left positioning space corresponding to the left horizontal edge of the side wall baffle 2. The right reduction groove 502 and the right support plane 403 form a right positioning space corresponding to the right horizontal edge of the side wall baffle 2. The left X-shaped T-slot starts at the left side wall of the base 4, and the right X-shaped T-slot starts at the right side wall of the base 4.
[0023] A left compression spring (obscured in the figure) is provided between the inner end of the left X-direction T-slot and the left X-direction slider 101, and a right compression spring (obscured in the figure) is provided between the inner end of the right X-direction T-slot and the right X-direction slider 501. In this embodiment, the end of the right X-direction slider 501 is provided with two X-direction positioning grooves 503, and each right X-direction slider 501 is connected to two right compression springs. One end of the right compression spring is inserted into and fixed in the X-direction positioning groove 503, and the other end abuts against the inner end face of the right X-direction T-slot. Similarly, the end of the left X-direction slider 101 is provided with two X-direction positioning grooves, and each left X-direction slider is connected to two left compression springs. One end of the left compression spring is inserted into and fixed in the X-direction positioning groove, and the other end abuts against the inner end face of the left X-direction T-slot.
[0024] Working principle:
[0025] 1. Attach the central protrusion 201 of the side wall baffle 2 to the Y-direction boss 401 to achieve horizontal positioning. Then, insert the left X-direction slider 101 at the bottom of the left clamping block 1 into the left X-direction T-groove, and insert the right X-direction slider 501 at the bottom of the right clamping block 5 into the right X-direction T-groove. This clamps the left horizontal edge of the side wall baffle 2 between the left reducing groove 102 of the left clamping block 1 and the left support plane 402, and clamps the right horizontal edge of the side wall baffle 2 between the right reducing groove 502 of the right clamping block 5 and the right support plane 403. The left and right X-direction T-grooves restrict the vertical position of the left and right clamping blocks, thereby achieving vertical positioning of the side wall baffle 2.
[0026] 2. After clamping, the square hole 3 can be milled on the top surface of the central protrusion 201 of the side wall baffle 2.
[0027] 3. After processing, push the left and right clamping blocks in the opposite direction. With the help of the left and right compression springs, the left and right clamping blocks are quickly disassembled, which facilitates quick removal of parts and easy disassembly.
[0028] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.
Claims
1. A square hole milling tool for a side wall baffle, comprising a base, characterised in that: The upper surface of the base has a Y-shaped boss of equal length at its center, which is used to support the central protrusion of the side wall baffle. A left support plane and a right support plane are formed on both sides of the Y-shaped boss on the upper surface of the base. The upper surface of the left support plane has two parallel left X-shaped T-slots, and a left clamping block is assembled using these slots. The bottom of the left clamping block has a left X-shaped slider that mates with the left X-shaped T-slots, and a left reduction groove near the Y-shaped boss. The upper surface of the right support plane has two parallel right X-shaped T-slots, and a left reduction groove is assembled using… A right clamping block is assembled in a right X-direction T-slot. The bottom of the right clamping block is provided with a right X-direction slider that mates with the right X-direction T-slot, and a right reduction groove near the Y-direction boss. The left reduction groove and the left support plane form a left positioning space for the left horizontal edge of the corresponding side wall baffle. The right reduction groove and the right support plane form a right positioning space for the right horizontal edge of the corresponding side wall baffle. A left compression spring is provided between the inner end of the left X-direction T-slot and the left X-direction slider. A right compression spring is provided between the inner end of the right X-direction T-slot and the right X-direction slider.
2. The square hole milling tool for side wall spacers according to claim 1, characterized in that: The width of the Y-direction boss is equal to the distance between the left and right side walls protruding from the middle of the side wall strip.
3. The square hole milling tool for side wall spacers according to claim 1, wherein: The left X-axis slider has two X-axis positioning grooves at its end. Each left X-axis slider is connected to two left compression springs. One end of the left compression spring is inserted into and fixed in the X-axis positioning groove, and the other end abuts against the inner end face of the left X-axis T-shaped groove.
4. The square hole milling tool for side wall spacers according to claim 1, wherein: The right X-axis slider has two X-axis positioning grooves at its end. Each right X-axis slider is connected to two right compression springs. One end of the right compression spring is inserted into and fixed in the X-axis positioning groove, and the other end rests against the inner end face of the right X-axis T-shaped groove.
5. The square hole milling tool for side wall spacers according to claim 1, wherein: The left X-shaped T-slot starts at the left side wall of the base, and the right X-shaped T-slot starts at the right side wall of the base.