A nose cutter production device for air engine machining

Abstract

The utility model relates to milling cutter production technical field especially, a kind of round nose cutter production equipment for aero-engine processing forming, solve the shortcoming of milling cutter production in prior art, including a pair of chamfering mechanism and bearing seat, a pair of chamfering mechanism is symmetrically set in the two sides of bearing seat;The downside of chamfering mechanism is provided with linear drive mechanism of driving chamfering mechanism horizontal displacement;Linear drive mechanism is provided with the pressure block of liftable, the upside of pressure block is provided with the limiting portion of limiting pressure block lifting, the outside of pressure block is provided with a pair of limit rods, the limiting portion includes support frame, the inside of support frame is provided with limit inclined slot, limit rod extends into limit inclined slot, the upper end of pressure block is fixedly connected with a pair of guide rod one, the upper end of guide rod one penetrates and has the sliding fit of translation block, the utility model has the characteristics of practicality and efficient chamfering.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter manufacturing technology, specifically to a production equipment for a round nose milling cutter used in the machining and forming of aero-engines. Background Technology

[0002] The core challenges in machining aero-engines are complex curved surfaces, difficult-to-machine materials, and extreme precision. The structural characteristics of the round nose end mill, with its rounded tip, perfectly meet these requirements, making it a key tool that cannot be completely replaced by other end mills, such as flat end mills and ball end mills.

[0003] In the manufacturing process of round nose end mills, the raw material for the end mills is mostly bar stock. When leaving the factory, the edges may have burrs, micro-cracks, or sharp edges. If chamfering is not performed, during subsequent grinding of the end mill, such as grinding the round nose or cutting edge, the sharp edges will crack due to stress concentration, resulting in the end mill being scrapped. Therefore, an automatic two-end round bar chamfering device is disclosed in the existing patent publication number CN210412864U, which includes a cutting device and an automatic control device. The cutting device is divided into two parts symmetrical along the workpiece. Each part includes a frame base, a scrap collection box, a sensor limit control device, a stepper motor, a ball screw, an asynchronous motor, a tool holder and cutter head, a three-jaw chuck, and a photoelectric sensor. The frame base, stepper motor, asynchronous motor, and three-jaw chuck are arranged sequentially from the inside to the outside. The sensor limit control device is installed on the frame base.

[0004] In the above technical solution, the bar is clamped by a three-jaw chuck, and the stepper motor drives the rotary cutting device to process the bar. However, both three-jaw chucks need to be manually installed and the bar needs to be fixed. Removing them is also time-consuming and laborious, reducing the overall processing efficiency.

[0005] Therefore, it is essential to design a production equipment for round nose milling cutters used in the machining and forming of aero-engines that is both practical and efficient in chamfering. Utility Model Content

[0006] The purpose of this invention is to provide a production equipment for round nose milling cutters used in the machining and forming of aero engines, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a production equipment for a round nose milling cutter used in the machining and forming of aero-engines, comprising a pair of chamfering mechanisms and a support base.

[0008] A pair of chamfering mechanisms are symmetrically arranged on both sides of the bearing seat;

[0009] A linear drive mechanism for driving the horizontal displacement of the chamfering mechanism is provided on the lower side of the chamfering mechanism;

[0010] The linear drive mechanism is provided with a liftable clamping block, and a limiting part is provided on the upper side of the clamping block to restrict the lifting of the clamping block.

[0011] According to the above technical solution, a pair of limiting rods are provided on the outer side of the clamping block, the limiting part includes a support frame, a limiting groove is opened on the inner side of the support frame, and the limiting rods extend into the limiting groove.

[0012] According to the above technical solution, a pair of guide rods are fixedly connected to the upper end of the clamping block. A translation block is slidably fitted through the upper end of the guide rod. The two ends of the translation block are connected to the limiting rod. A spring is sleeved on the outer side of the guide rod.

[0013] According to the above technical solution, the clamping block is made of rubber.

[0014] According to the above technical solution, a pair of fixed rods are fixedly connected to one end of the translation block, and a movable bracket is fixedly connected to one end of the fixed rod. The lower end of the movable bracket is connected to the linear drive mechanism.

[0015] According to the above technical solution, a guide rod 2 is slidably fitted through the center of the translation block, a guide plate is fixedly connected to the upper end of the guide rod 2, slide rail clips are fixedly connected to both ends of the guide plate, and a slide groove is provided on the outer side of the support frame, and the slide rail clips are slidably fitted along the slide groove.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0017] The milling cutter bar to be machined is supported by a bearing seat. Then, a pair of chamfering mechanisms are driven by a linear drive mechanism to move relative to each other and approach the two machined end faces of the milling cutter bar. At the same time, the linear drive mechanism also drives the clamping block to move synchronously. A limit part is set on the upper side of the clamping block, which limits the movement trajectory of the clamping block, causing it to move horizontally and downwards until the clamping block descends and fits against the surface of the milling cutter bar. With the support of the bearing seat on the lower side, clamping is achieved. The pair of chamfering mechanisms also come into contact with the two ends of the milling cutter bar. Under the stabilizing effect of the clamping block, the chamfering mechanisms grind and chamfer the two end faces of the milling cutter bar. There is no need to set up a separate clamping fixture, nor is there a need for manual operation of the clamping fixture for clamping or unloading. The degree of automation is high and the chamfering convenience is improved. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0020] Figure 3This is a partial three-dimensional schematic diagram of the present invention;

[0021] Figure 4 yes Figure 1 A magnified view of a portion of region A;

[0022] Figure 5 This is a schematic cross-sectional view of the inclined block of this utility model;

[0023] In the diagram: 1. Chamfering mechanism; 101. Concave grinding block; 102. Motor component;

[0024] 2. Linear drive mechanism; 201. Translation seat;

[0025] 3. Bearing base; 301. Roller rack; 302. Inclined block;

[0026] 4. Clamping block; 401. Limiting rod; 402. Limiting groove; 403. Guide rod one; 404. Translation block;

[0027] 5. Support frame; 501. Movable support;

[0028] 6. Milling cutter bar stock; 7. Guide rod 2; 8. Guide plate; 9. Slide rail clamp. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5 This utility model provides a technical solution: a production equipment for round nose milling cutters used in the machining and forming of aero-engines, comprising a pair of chamfering mechanisms 1 and a support base 3.

[0031] A pair of chamfering mechanisms 1 are symmetrically arranged on both sides of the bearing seat 3;

[0032] A linear drive mechanism 2 for driving the horizontal displacement of the chamfering mechanism 1 is provided on the lower side of the chamfering mechanism 1;

[0033] The linear drive mechanism 2 is provided with a liftable clamping block 4, and a limiting part is provided on the upper side of the clamping block 4 to restrict the lifting of the clamping block 4.

[0034] Preferably, the milling cutter bar 6 to be processed is first supported by the bearing seat 3. Then, the linear drive mechanism 2 drives a pair of chamfering mechanisms 1 to move relative to each other and approach the two processing end faces of the milling cutter bar 6. At the same time, the linear drive mechanism 2 also drives the clamping block 4 to move synchronously. A limiting part is provided on the upper side of the clamping block 4. The limiting part limits the movement trajectory of the clamping block 4, so that it moves horizontally and downwards until the clamping block 4 descends and fits against the surface of the milling cutter bar 6. With the support of the bearing seat 3 on the lower side, clamping is achieved. The pair of chamfering mechanisms 1 also contact the two ends of the milling cutter bar 6. Under the stabilizing effect of the clamping block 4, the chamfering mechanism 1 grinds and chamfers the two end faces of the milling cutter bar 6. There is no need to set up a separate clamping fixture, nor is there a need for manual operation of the clamping fixture for clamping or unloading. The degree of automation is high and the chamfering convenience is improved.

[0035] Preferably, the linear drive mechanism 2 includes a translation seat 201, the lower side of which slides with the guide rail, and the translation seat 201 is driven by a cylinder.

[0036] Preferably, the chamfering mechanism 1 includes a concave grinding block 101, which is driven to rotate by a motor component 102, and the motor component 102 is fixed on the translation seat 201;

[0037] Preferably, a pair of roller frames 301 are extended from both ends of the bearing seat 3. The roller frames 301 are inclined. The feeder sequentially feeds the milling cutter bar 6 to be processed. The milling cutter bar 6 rolls along the roller frame 301 onto the bearing seat 3. The milling cutter bar 6 is limited by the opening of the receiving groove. Then, the inclined block 302 is pushed up by the cylinder component set on the lower side, and the milling cutter bar 6, which is in the receiving groove and has been chamfered, is pushed upward. It can then be pushed into the lower roller frame 301 to complete the unloading.

[0038] A pair of limiting rods 401 are provided on the outer side of the clamping block 4. The limiting part includes a support frame 5. A limiting groove 402 is opened on the inner side of the support frame 5. The limiting rods 401 extend into the limiting groove 402.

[0039] Preferably, when the limiting part needs to restrict the displacement of the clamping block 4, a limiting rod 401 and a limiting groove 402 are provided. The limiting rod 401 extends into the limiting groove 402. When the clamping block 4 moves horizontally, the limiting rod 401 is limited by the limiting groove 402 and moves downward synchronously, thereby realizing the clamping operation. The structure is simple, practical, and does not require additional drive components to drive the lifting and lowering of the clamping block 4, saving costs.

[0040] A pair of guide rods 403 are fixedly connected to the upper end of the clamping block 4. A translation block 404 is slidably fitted through the upper end of the guide rod 403. The two ends of the translation block 404 are connected to the limiting rod 401. A spring is sleeved on the outer side of the guide rod 403.

[0041] One end of the translation block 404 is fixedly connected to a pair of fixed rods, and one end of the fixed rods is fixedly connected to a movable bracket 501. The lower end of the movable bracket 501 is connected to the linear drive mechanism 2.

[0042] Preferably, since the clamping block 4 follows the horizontal displacement of the concave grinding block 101, and both need to be in close contact with the milling cutter bar 6, to prevent the concave grinding block 101 from being unable to continue moving to contact the chamfered end face when the clamping block 4 first presses against the upper side of the milling cutter bar 6, a guide rod 403 and a spring are provided to make the clamping block 4 movable. Specifically, when the translation seat 201 moves, it drives the moving bracket 501 to move synchronously with the chamfering mechanism 1, within the limit of the limiting groove 402. Under the influence of the manufacturing process, the translation block 404 causes the lower clamping block 4 to tilt and move. When the clamping block 4 first presses against the upper side of the milling cutter bar 6, the translation seat 201 continues to move, and the translation block 404 descends relative to the clamping block 4. The clamping block 4 then makes a slight adjustment of its position along the axial direction of the milling cutter bar 6 until the concave grinding block 101 is in contact with the end face. At this time, the spring is in a compressed state, which further increases the clamping force of the clamping block 4 and improves the displacement tolerance of both the clamping block 4 and the concave grinding block 101.

[0043] The clamping block 4 is made of rubber.

[0044] Preferably, the clamping friction is further increased to prevent the milling cutter bar 6 from rotating during the chamfering process.

[0045] The center of the translation block 404 is slidably connected to a guide rod 7. The upper end of the guide rod 7 is fixedly connected to a guide plate 8. The two ends of the guide plate 8 are fixedly connected to slide rail clips 9. The outer side of the support frame 5 is provided with a slide groove, and the slide rail clips 9 slide along the slide groove.

[0046] Preferably, since the clamping block 4 is located below the translation block 404, when it comes into contact with the milling cutter bar 6, the translation block 404 continues to move horizontally, causing the clamping block 4 to move axially along the milling cutter bar 6, thereby generating a horizontal reaction force, which can easily cause the fixing rod to bend under force. Therefore, a guide plate 8 is provided, and the guide rod 7 passes through the clamping block 4 to provide vertical limitation. The guide plate 8 is guided by the slide rail clips 9 at both ends of the guide plate 8 sliding with the slide groove, thereby further ensuring the stability of the translation block 404's displacement.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A production equipment for a round nose milling cutter used in the machining and forming of aero-engines, comprising a pair of chamfering mechanisms (1) and a support (3), characterized in that: A pair of chamfering mechanisms (1) are symmetrically arranged on both sides of the bearing seat (3); A linear drive mechanism (2) for driving the horizontal displacement of the chamfering mechanism (1) is provided on the lower side of the chamfering mechanism (1); The linear drive mechanism (2) is provided with a liftable pressing block (4), and a limiting part is provided on the upper side of the pressing block (4) to restrict the lifting of the pressing block (4).

2. The production equipment for a round nose milling cutter for machining and forming aircraft engines according to claim 1, characterized in that: A pair of limiting rods (401) are provided on the outer side of the clamping block (4). The limiting part includes a support frame (5). A limiting groove (402) is opened on the inner side of the support frame (5). The limiting rod (401) extends into the limiting groove (402).

3. The production equipment for a round nose milling cutter for aero-engine machining and forming according to claim 2, characterized in that: The upper end of the clamping block (4) is fixedly connected to a pair of guide rods (403). The upper end of the guide rod (403) is connected to a translation block (404) that slides through and is slidably fitted. The two ends of the translation block (404) are connected to the limiting rod (401). A spring is sleeved on the outer side of the guide rod (403).

4. A production equipment for a round nose milling cutter for machining and forming aircraft engines according to claim 1, 2, or 3, characterized in that: The clamping block (4) is made of rubber.

5. The production equipment for a round nose milling cutter for machining and forming aircraft engines according to claim 3, characterized in that: One end of the translation block (404) is fixedly connected to a pair of fixed rods, and one end of the fixed rods is fixedly connected to a movable bracket (501). The lower end of the movable bracket (501) is connected to the linear drive mechanism (2).

6. The production equipment for a round nose milling cutter for aero-engine machining and forming according to claim 3, characterized in that: The center of the translation block (404) is slidably fitted with a guide rod (7), the upper end of the guide rod (7) is fixedly connected to a guide plate (8), the two ends of the guide plate (8) are fixedly connected to slide rail clips (9), the outer side of the support frame (5) is provided with a slide groove, and the slide rail clips (9) slide along the slide groove.

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