Milling head structure of numerical control milling machine

Abstract

The utility model provides a milling head structure of numerical control milling machine relates to numerical control milling machine technical field, including installation component, installation component includes fixed disc, the fixed disc is opened and is equipped with the fixed hole of uniform distribution, the fixed shell is fixed in the bottom of fixed disc. The utility model starts hydraulic cylinder, and the hydraulic cylinder will drive the connecting cylinder and first slide bar to rise through the push board and the bearing, until the first slide bar is inserted into the second slide bar, and the rotation of first rotating shaft will be passed to third rotating shaft through connecting cylinder, second slide bar, first slide bar under the cooperation of first slide bar and second slide bar, and then drives vertical turntable rotation, at this moment, the driving bevel gear and driven bevel gear are not engaged, and the horizontal turntable will not rotate, the device can independently control the rotation of vertical turntable or horizontal turntable according to actual needs, avoids the misoperation when vertical turntable and horizontal turntable rotate simultaneously, improves the security of operation.

Description

Technical Field

[0001] This utility model relates to a milling head, specifically a milling head structure for a CNC milling machine, and belongs to the field of CNC milling machine technology. Background Technology

[0002] CNC milling machines, as modern precision machining equipment, are widely used in metal processing, mold manufacturing, and other fields. Their milling head structure has a significant impact on machining accuracy and efficiency. With the continuous upgrading of processing materials and process requirements, the milling head structure of CNC milling machines is constantly developing towards higher efficiency and precision, leading to an increasing demand for new structural designs.

[0003] Chinese Patent Publication CN114042980A discloses a milling head structure for a CNC milling machine. The milling cutter can be mounted on two turntables by a mounting component. When in use, the two turntables are driven to rotate simultaneously by a drive component. At this time, both turntables will drive the milling cutter to rotate. The surface of the workpiece can be machined by the turntable and the milling cutter at the bottom of the milling head housing. When it is necessary to machine the side of the workpiece, the user only needs to use the turntable and the milling cutter on one side of the milling head housing to machine the side of the workpiece. It is simple and convenient to use.

[0004] In practical applications, it was found that only one turntable needs to rotate during processing. However, the aforementioned patent, when in use, requires the drive unit to simultaneously rotate two turntables. This makes it difficult for workers to accurately determine which turntable needs to rotate at a specific moment, increasing the risk of misoperation and reducing safety. Therefore, this paper proposes a milling head structure for a CNC milling machine. Utility Model Content

[0005] This invention proposes a milling head structure for a CNC milling machine, which can independently control the rotation of two turntables according to actual needs, avoiding misoperation when the two turntables rotate simultaneously and improving operational safety.

[0006] This utility model is achieved through the following technical solution: a milling head structure for a CNC milling machine, including a mounting assembly, the mounting assembly including a fixed plate, the fixed plate having uniformly distributed fixing holes, a fixing shell fixed to the bottom of the fixed plate, and a tapered interface installed on the top surface of the fixed plate, the tapered interface being fixed to a first rotating shaft.

[0007] The bottom of the mounting assembly is provided with a power mechanism, which includes a fixed shell. A first rotating shaft, a second rotating shaft, and a third rotating shaft are rotatably connected to the fixed shell. A horizontal turntable is fixed to the output end of the second rotating shaft, and a vertical turntable is fixed to the output end of the third rotating shaft.

[0008] An adjustment mechanism is provided between the first rotating shaft and the third rotating shaft. The adjustment mechanism includes a connecting cylinder, which slides on the first rotating shaft and has an adjustment cavity inside.

[0009] The adjusting cavity is fixed with a uniformly distributed first slide bar, the upper end of which is chamfered. The upper end of the third rotating shaft is fixed with a uniformly distributed second slide bar. The first slide bar slides in contact with the third rotating shaft, and the second slide bar slides in contact with the connecting cylinder through the adjusting cavity.

[0010] A driving bevel gear is fixed on the connecting cylinder, and a driven bevel gear that meshes with the driving bevel gear is fixed on the second rotating shaft. A stop block is rotatably connected to the inner wall of the connecting cylinder, and the outer contour of the stop block is a cylinder.

[0011] The inner bottom wall of the fixed shell is provided with a pushing assembly for pushing the connecting cylinder. The pushing assembly includes a hydraulic cylinder, which is fixed to the inner bottom wall of the fixed shell. A push plate is fixed to the output end of the hydraulic cylinder, and a bearing is installed on the push plate. The bearing is fixed to the lower end of the connecting cylinder.

[0012] This utility model provides a milling head structure for a CNC milling machine, which has the following beneficial effects:

[0013] 1. The milling head structure of this CNC milling machine features a first rotating shaft that, through a connecting cylinder and a driving bevel gear, can rotate a driven bevel gear and a second rotating shaft, thereby driving the horizontal turntable to rotate. When the vertical turntable needs to be rotated, the hydraulic cylinder is activated. The hydraulic cylinder will drive the connecting cylinder and the first slide bar to rise through a push plate and bearings until the first slide bar engages with the second slide bar. With the cooperation of the first and second slide bars, the rotation of the first rotating shaft will be transmitted to the third rotating shaft through the connecting cylinder, the second slide bar, and the first slide bar, thereby driving the vertical turntable to rotate. At this time, the driving bevel gear and the driven bevel gear are not meshed, and the horizontal turntable will not rotate. This device can independently control the rotation of the vertical or horizontal turntable according to actual needs, avoiding misoperation when the vertical and horizontal turntables rotate simultaneously, and improving operational safety. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the internal structure of the fixed shell of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This is a cross-sectional view of the internal structure of the connecting cylinder of this utility model;

[0018] Figure 5 This is a schematic diagram of the connecting cylinder and the first sliding bar of this utility model.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Mounting components; 101. Mounting plate; 102. Mounting holes;

[0021] 2. Power mechanism; 201. Fixed housing; 202. First rotating shaft; 203. Second rotating shaft; 204. Third rotating shaft;

[0022] 205. Adjusting mechanism; 2051. Connecting cylinder; 2052. First slide bar; 2053. Chamfer; 2054. Second slide bar; 2055. Driving bevel gear; 2056. Driven bevel gear; 2057. Adjusting cavity; 2058. Stop block;

[0023] 206. Pushing component; 2061. Hydraulic cylinder; 2062. Push plate; 2063. Bearing;

[0024] 3. Vertical turntable; 4. Horizontal turntable; 5. Conical interface. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0026] Please see Figures 1-5 The present invention proposes the following implementation scheme: a milling head structure for a CNC milling machine, including a mounting component 1, the mounting component 1 including a fixed plate 101, the fixed plate 101 having uniformly distributed fixing holes 102, a fixing shell 201 fixed to the bottom of the fixed plate 101, and a tapered interface 5 installed on the top surface of the fixed plate 101, the tapered interface 5 being fixed to a first rotating shaft 202, the device can be installed on a CNC milling machine through the fixed plate 101, the fixing holes 102, and the tapered interface 5.

[0027] Please refer to this carefully. Figure 2 and Figure 3 The bottom of the mounting component 1 is provided with a power mechanism 2. The power mechanism 2 includes a fixed housing 201. A first rotating shaft 202, a second rotating shaft 203 and a third rotating shaft 204 are rotatably connected to the fixed housing 201. A horizontal turntable 4 is fixed to the output end of the second rotating shaft 203 and a vertical turntable 3 is fixed to the output end of the third rotating shaft 204. The milling cutter can be installed through the vertical turntable 3 or the horizontal turntable 4.

[0028] Please refer to this carefully. Figure 2 and Figure 4 An adjustment mechanism 205 is provided between the first rotating shaft 202 and the third rotating shaft 204. The adjustment mechanism 205 includes a connecting cylinder 2051. The connecting cylinder 2051 slides on the first rotating shaft 202. The connecting cylinder 2051 cannot rotate on the first rotating shaft 202, but can only slide on the first rotating shaft 202. An adjustment cavity 2057 is provided inside the connecting cylinder 2051.

[0029] A first slide bar 2052 is fixed on the adjusting cavity 2057, and a chamfer 2053 is provided at the upper end of the first slide bar 2052. A second slide bar 2054 is fixed on the upper end of the third rotating shaft 204, and the chamfer 2053 makes it easier for the second slide bar 2054 and the first slide bar 2052 to fit together, avoiding the collision caused by the misalignment of the positions of the first slide bar 2052 and the second slide bar 2054. The first slide bar 2052 slides in contact with the third rotating shaft 204, and the second slide bar 2054 slides in contact with the connecting cylinder 2051 through the adjusting cavity 2057.

[0030] A driving bevel gear 2055 is fixed on the connecting cylinder 2051, and a driven bevel gear 2056 that meshes with the driving bevel gear 2055 is fixed on the second rotating shaft 203. A stop block 2058 is rotatably connected to the inner wall of the connecting cylinder 2051. The bottom surface of the stop block 2058 contacts the top surface of the third rotating shaft 204. The outer contour of the stop block 2058 is cylindrical. The stop block 2058 can prevent the upper end of the third rotating shaft 204 from abutting against the connecting cylinder 2051, which would cause excessive friction between the top of the third rotating shaft 204 and the connecting cylinder 2051.

[0031] Please refer to this carefully. Figure 3 The inner bottom wall of the fixed shell 201 is provided with a pushing assembly 206 for pushing the connecting cylinder 2051. The pushing assembly 206 includes a hydraulic cylinder 2061, which is fixed to the inner bottom wall of the fixed shell 201. A push plate 2062 is fixed to the output end of the hydraulic cylinder 2061. A bearing 2063 is installed on the push plate 2062. The bearing 2063 is fixed to the lower end of the connecting cylinder 2051. The push plate 2062 is rotatably connected to the connecting cylinder 2051 through the bearing 2063. The start of the hydraulic cylinder 2061 will cooperate with the push plate 2062 and the bearing 2063 to drive the connecting cylinder 2051 to move.

[0032] Working principle: When the horizontal turntable 4 needs to rotate, the conical interface 5 will drive the first rotating shaft 202 to rotate. The first rotating shaft 202, through the connecting cylinder 2051 and the driving bevel gear 2055, can drive the driven bevel gear 2056 and the second rotating shaft 203 to rotate. In turn, the rotating second rotating shaft 203 drives the horizontal turntable 4 to rotate. When the vertical turntable 3 needs to rotate, the hydraulic cylinder 2061 is activated. The hydraulic cylinder 2061 will drive the connecting cylinder 2051 and the first slide bar 2052 to rise through the push plate 2062 and the bearing 2063 until the first slide bar 2052 engages with the second slide bar 2052. Within 054, with the cooperation of the first slide bar 2052 and the second slide bar 2054, the rotation of the first rotating shaft 202 will be transmitted to the third rotating shaft 204 through the connecting cylinder 2051, the second slide bar 2054, and the first slide bar 2052. In turn, the third rotating shaft 204 drives the vertical turntable 3 to rotate. At this time, the driving bevel gear 2055 and the driven bevel gear 2056 do not mesh, and the horizontal turntable 4 will not rotate. This device can independently control the rotation of the vertical turntable 3 or the horizontal turntable 4 according to actual needs, avoiding misoperation when the vertical turntable 3 and the horizontal turntable 4 rotate at the same time, and improving the safety of operation.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A milling head structure for a CNC milling machine, comprising a mounting assembly (1), characterized in that: The bottom of the mounting assembly (1) is provided with a power mechanism (2); The power mechanism (2) includes a fixed housing (201), on which a first rotating shaft (202), a second rotating shaft (203) and a third rotating shaft (204) are rotatably connected, and an adjustment mechanism (205) is provided between the first rotating shaft (202) and the third rotating shaft (204); The adjusting mechanism (205) includes a connecting cylinder (2051), which slides on a first rotating shaft (202). An adjusting cavity (2057) is provided inside the connecting cylinder (2051). A first slide bar (2052) is fixed on the adjusting cavity (2057) and is evenly distributed. A second slide bar (2054) is evenly distributed on the upper end of the third rotating shaft (204). A driving bevel gear (2055) is fixed on the connecting cylinder (2051). A driven bevel gear (2056) that meshes with the driving bevel gear (2055) is fixed on the second rotating shaft (203). A pushing assembly (206) for pushing the connecting cylinder (2051) is provided on the inner bottom wall of the fixed shell (201).

2. The milling head structure of a CNC milling machine according to claim 1, characterized in that: The pushing assembly (206) includes a hydraulic cylinder (2061), which is fixed to the inner bottom wall of the fixed shell (201). A push plate (2062) is fixed to the output end of the hydraulic cylinder (2061), and a bearing (2063) is installed on the push plate (2062). The bearing (2063) is fixed to the lower end of the connecting cylinder (2051).

3. The milling head structure of a CNC milling machine according to claim 1, characterized in that: The inner wall of the connecting cylinder (2051) is rotatably connected to a stop (2058), and the outer contour of the stop (2058) is a cylinder.

4. The milling head structure of a CNC milling machine according to claim 1, characterized in that: The mounting assembly (1) includes a fixing plate (101) with evenly distributed fixing holes (102) on the fixing plate (101). The fixing shell (201) is fixed to the bottom of the fixing plate (101). A tapered interface (5) is installed on the top surface of the fixing plate (101). The tapered interface (5) is fixed to the first rotating shaft (202).

5. The milling head structure of a CNC milling machine according to claim 1, characterized in that: The first slide bar (2052) is in sliding contact with the third rotating shaft (204), and the second slide bar (2054) is in sliding contact with the connecting cylinder (2051) through the adjusting cavity (2057).

6. The milling head structure of a CNC milling machine according to claim 1, characterized in that: The output end of the second rotating shaft (203) is fixed with a horizontal turntable (4), and the output end of the third rotating shaft (204) is fixed with a vertical turntable (3).

7. The milling head structure of a CNC milling machine according to claim 1, characterized in that: The upper end of the first slider (2052) is chamfered (2053).

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