Multi-shaft main shaft head of tool turret

Abstract

The utility model discloses a multi-shaft main shaft head of a tool turret, which relates to the technical field of machining equipment and comprises a cutter head, a tool apron, a first driving mechanism and a locking mechanism, a mounting cavity for mounting the locking mechanism is formed between the cutter head and the cutter holder; the locking mechanism comprises a fixed fluted disc, a movable fluted disc, a locking disc and an oil cylinder; the fixed fluted disc is fixedly connected to the tool apron; the movable fluted disc is fixedly connected to the cutter disc and drives the cutter disc to rotate through the first driving mechanism; and the locking disc is arranged in the mounting cavity in an axial moving manner through the oil cylinder, so that the locking disc is meshed with or separated from the fixed fluted disc and the movable fluted disc. The three-piece type locking mechanism has the advantages of being simple in structure, simple in component, convenient to operate, accurate, controllable and the like, and effectively solves the problems existing in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to a turret multi-axis spindle head. Background Art

[0002] The turret is one of the important components of CNC machine tools. When working, the motor drives the tool on the turret to perform drilling, milling, tapping and other processing on complex parts. Different tools can be switched by rotating the cutter head to meet the processing needs of different workpieces. It has the advantages of good flexibility, high processing precision, stable and reliable processing quality, high degree of production automation and high production efficiency.

[0003] A Chinese patent with publication number CN211136413U discloses a novel turret tool changing processing device, in which a three-piece toothed locking mechanism is provided inside the turret for locking the turret after the tool is switched, thereby preventing the tool from vibrating during processing.

[0004] However, the locking mechanism of this solution is set in the tool holder, and during the locking process, the piston needs to drive the piston teeth to move axially, thereby locking the fixed gear plate and the movable gear plate, and then the moving gear plate is used to lock the extension end of the turret, so as to lock the entire turret. It can be seen that the structure involved in this solution is complex and has many parts, resulting in a large volume of the entire turret, and the locking process is cumbersome, so it is urgently needed to be improved. Utility Model Content

[0005] The utility model provides a turret multi-axis spindle head, which mainly aims to solve the problems of a three-piece toothed locking mechanism of a turret in the prior art having a complex structure, more components and complicated locking procedures.

[0006] The utility model adopts the following technical solutions:

[0007] A turret multi-axis spindle head comprises a cutter disc, a cutter seat, a first drive mechanism and a locking mechanism; an installation cavity for installing the locking mechanism is provided between the cutter disc and the cutter seat; the locking mechanism comprises a fixed gear disc, a movable gear disc, a locking disc and an oil cylinder; the fixed gear disc is fixedly connected to the cutter seat; the movable gear disc is fixedly connected to the cutter disc and is driven to rotate by the first drive mechanism; the locking disc is axially movably arranged in the installation cavity through the oil cylinder, so as to engage with or separate from the fixed gear disc and the movable gear disc.

[0008] Furthermore, the first driving mechanism includes a rotating motor and a transmission gear, wherein the rotating motor is arranged above the tool holder, and the transmission gear is arranged on the output shaft of the rotating motor and meshes with the movable gear plate.

[0009] Furthermore, the outer side of the movable gear plate is provided with a first gear tooth that meshes with the transmission gear, and the front end of the movable gear plate is provided with a second gear tooth; the fixed gear plate is sleeved inside the movable gear plate, and the front end of the fixed gear plate is provided with a third gear tooth; the rear end of the locking plate is provided with a fourth gear tooth that meshes with the second gear tooth and the third gear tooth.

[0010] Furthermore, the cutter disc is provided with a first mounting groove, and the cutter seat is provided with a second mounting groove, and the first mounting groove and the second mounting groove constitute the mounting cavity.

[0011] Furthermore, the oil cylinder comprises a cylinder body and a piston, wherein the piston is fixedly disposed in the mounting cavity, and the cylinder body is axially movably sleeved on the outside of the piston and fixedly connected to the locking plate.

[0012] Furthermore, an annular boss is provided at the front end of the cylinder body, the locking plate is provided with a first annular recess for assembling the annular boss, and the fixed gear plate is provided with a second annular recess for avoiding the annular boss.

[0013] Furthermore, the tool disc is provided with a plurality of spindles for installing the tool, and is provided with a coupling connected to one of the spindles; it also includes a second driving mechanism, the second driving mechanism includes a spindle motor and a transmission assembly, the transmission assembly is arranged in the mounting cavity, and is transmission-connected to the spindle motor and the coupling.

[0014] Furthermore, a cavity is provided in the middle of the piston, and the transmission assembly is arranged in the cavity.

[0015] Furthermore, the transmission assembly includes a first synchronous wheel, a second synchronous wheel and a synchronous belt; the first synchronous wheel is connected to the coupling, the second synchronous wheel is connected to the spindle motor, and the synchronous belt is arranged in the cavity and is transmission-connected to the first synchronous wheel and the second synchronous wheel.

[0016] Furthermore, the front end of the cutter disc is provided with an inspection window and an inspection cover.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The locking mechanism in the utility model includes a fixed gear plate, a movable gear plate, a locking plate and an oil cylinder, wherein the movable gear plate can not only play the role of transmission connection between the first drive mechanism and the cutter disc, but also can cooperate with the fixed gear plate and the locking plate to play the role of locking the cutter disc, thereby optimizing the internal structure of the turret multi-axis spindle head, so that the three-piece locking mechanism has the advantages of simple structure, streamlined components, easy operation and precise control, etc., which effectively solves the problems existing in the prior art.

[0019] 2. The utility model adopts a driving mode in which the cylinder body moves and the piston is fixed to drive the locking plate to move axially, and a cavity is provided in the middle of the piston to install the transmission component of the second driving mechanism, thereby playing the role of a core shaft, making full use of the internal space of the piston, and making the internal structure of the turret more compact and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a cross-sectional schematic diagram of the turret multi-axis spindle head in the utility model.

[0022] Figure 3 for Figure 2 Enlarged schematic diagram of part A.

[0023] Figure 4 It is a structural schematic diagram of the fixed gear plate, the movable gear plate and the locking plate in the utility model.

[0024] In the figure: 1-base; 2-column; 3-turret multi-axis spindle head; 31-knife disc; 311-spindle; 312-coupling; 313-inspection cover; 32-knife holder; 33-first drive mechanism; 331-rotating motor; 332-transmission gear; 333-motor housing; 341-fixed gear plate; 3411-third gear; 3412-second annular recess; 342-moving gear plate; 3421-first gear; 3422-second gear; 343-locking plate; 3431-fourth gear; 3432-first annular recess; 351-cylinder body; 352-piston; 353-annular boss; 354-cavity; 36-second drive mechanism; 361-spindle motor; 362-first synchronous wheel; 363-second synchronous wheel; 364-synchronous belt; 4-workbench. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention is described below with reference to the accompanying drawings. In order to fully understand the present invention, many details are described below, but for those skilled in the art, the present invention can be implemented without these details.

[0026] like Figures 1 to 3As shown, a vertical turret multi-axis compound machine tool includes a base 1, a column 2, a turret multi-axis spindle head 3 and a workbench 4. The main innovation of the utility model lies in the improvement of the internal structure of the turret multi-axis spindle head 3. Specifically, the turret multi-axis spindle head 3 includes a cutter disc 31, a cutter seat 32, a first drive mechanism 33 and a locking mechanism. There is an installation cavity for installing the locking mechanism between the cutter disc 31 and the cutter seat 32; the locking mechanism includes a fixed tooth disc 341, a movable tooth disc 342, a locking disc 343 and an oil cylinder; the fixed tooth disc 341 is fixedly connected to the cutter seat 32; the movable tooth disc 342 is fixedly connected to the cutter disc 31, and drives the cutter disc 31 to rotate through the first drive mechanism 33; the locking disc 343 is axially movably arranged in the installation cavity through the oil cylinder, so as to engage with or separate from the fixed tooth disc 341 and the movable tooth disc 342.

[0027] like Figures 1 to 3 As shown, when it is necessary to switch the tool, the first drive mechanism 33 can be used to drive the movable toothed disc 342 to rotate, thereby controlling the rotation of the cutter disc 31 so that the designated tool is aligned with the workpiece on the workbench 4; after the tool is switched, the locking disc 343 can be controlled by the oil cylinder to axially move to mesh with the fixed toothed disc 341 and the movable toothed disc 342, thereby locking the cutter disc 31 to prevent it from rotating relative to the tool holder 32 during the processing and causing the tool to vibrate. It can be seen that the movable toothed disc 342 in the utility model can not only play the role of transmission connection between the first drive mechanism 33 and the cutter disc 31, but also cooperate with the fixed toothed disc 341 and the locking disc 343 to lock the cutter disc 31, thereby optimizing the internal structure of the turret multi-axis spindle head 3 and making the locking process of the three-piece locking mechanism more accurate and controllable.

[0028] like Figures 1 to 3 As shown, the first driving mechanism 33 includes a rotating motor 331 and a transmission gear 332. The rotating motor 331 is arranged above the knife seat 32. The transmission gear 332 is arranged on the output shaft of the rotating motor 331 and meshes with the movable gear plate 342. In order to protect the internal structure, the first driving mechanism 33 is also equipped with a motor housing 333 that covers the rotating motor 331 and the transmission gear 332.

[0029] like Figures 2 to 4 As shown, specifically, the outer side of the movable toothed disc 342 is provided with a first gear 3421 meshing with the transmission gear 332, and the front end of the movable toothed disc 342 is provided with a second gear 3422; the fixed toothed disc 341 is sleeved inside the movable toothed disc 342, and the front end of the fixed toothed disc 341 is provided with a third gear 3411; the rear end of the locking disc 343 is provided with a fourth gear 3431 meshing with the second gear 3422 and the third gear 3411. It can be seen that the locking mechanism of the utility model is not only compact and reasonable in structure, occupies a small space, but also has a firm and tight fit and high reliability.

[0030] like Figure 2and Figure 3 As shown, the cutter disc 31 is provided with a first mounting groove, and the cutter seat 32 is provided with a second mounting groove, and the first mounting groove and the second mounting groove constitute a mounting cavity for installing a locking mechanism. The utility model integrates the locking mechanism into the mounting cavity, fully utilizes the internal space of the cutter disc 31 and the cutter seat 32, and effectively compresses the overall volume of the turret multi-axis spindle head 3.

[0031] like Figures 2 to 4 As shown, as a specific driving mode: the oil cylinder includes a cylinder body 351 and a piston 352, the piston 352 is fixed in the installation cavity, the cylinder body 351 is axially movably sleeved on the outside of the piston 352, and is fixedly connected to the locking plate 343. Specifically, an annular boss 353 is provided at the front end of the cylinder body 351, the locking plate 343 is provided with a first annular recess 3432 for assembling the annular boss 353, and the fixed tooth plate 341 is provided with a second annular recess 3412 for avoiding the annular boss 353, thereby further optimizing the structure and ensuring that the cooperation between the various components is more compact.

[0032] like Figures 1 to 3 As shown, the cutter head 31 is provided with a plurality of spindles 311 for installing the cutter, and is provided with a coupling 312 connected to one of the spindles 311, and the coupling 312 is preferably a cross-axis coupling. It also includes a second drive mechanism 36, which includes a spindle motor 361 and a transmission assembly, which is arranged in the installation cavity and is connected to the spindle motor 361 and the coupling 312. Specifically, a cavity 354 is provided in the middle of the piston 352, and the transmission assembly is arranged in the cavity 354, so that the piston 352 can also play the role of a core shaft, thereby making full use of the internal space of the piston 352, making the structure inside the turret more compact and reasonable.

[0033] like Figures 1 to 3 As shown, the transmission assembly includes a first synchronous wheel 362, a second synchronous wheel 363 and a synchronous belt 364; the first synchronous wheel 362 is connected to the coupling 312, the second synchronous wheel 363 is connected to the spindle motor 361, and the synchronous belt 364 is arranged in the cavity 354 and is transmission-connected to the first synchronous wheel 362 and the second synchronous wheel 363. Specifically, the spindle motor 361 is installed at the rear side of the column 2, and is connected to the second synchronous wheel 363 through other transmission assemblies such as synchronous belt wheels, thereby making full use of the installation space of the column 2 and avoiding the knife seat 32 from being too large.

[0034] like Figure 1 and Figure 2 As shown, a maintenance window is provided at the front end of the cutter disc 31, and an inspection cover 313 is provided, thereby facilitating maintenance and inspection of the internal components of the cutter disc 31, and the design is more user-friendly.

[0035] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A turret multi-axis spindle head, characterized in that: It includes a cutter disc, a cutter seat, a first driving mechanism and a locking mechanism; a mounting cavity for mounting the locking mechanism is provided between the cutter disc and the cutter seat; the locking mechanism includes a fixed toothed disc, a movable toothed disc, a locking disc and an oil cylinder; the fixed toothed disc is fixedly connected to the cutter seat; the movable toothed disc is fixedly connected to the cutter disc and is driven to rotate by the first driving mechanism; the locking disc is axially movably arranged in the mounting cavity through the oil cylinder, so as to engage with or separate from the fixed toothed disc and the movable toothed disc.

2. A turret multi-axis spindle head according to claim 1, characterized in that: The first driving mechanism includes a rotating motor and a transmission gear. The rotating motor is arranged above the knife seat. The transmission gear is arranged on the output shaft of the rotating motor and meshes with the movable gear plate.

3. A turret multi-axis spindle head according to claim 1, characterized in that: The outer side of the movable gear plate is provided with a first gear tooth that meshes with the transmission gear, and the front end of the movable gear plate is provided with a second gear tooth; the fixed gear plate is sleeved inside the movable gear plate, and the front end of the fixed gear plate is provided with a third gear tooth; the rear end of the locking plate is provided with a fourth gear tooth that meshes with the second gear tooth and the third gear tooth.

4. A turret multi-axis spindle head according to claim 1, characterized in that: The cutter disc is provided with a first mounting groove, and the cutter seat is provided with a second mounting groove, and the first mounting groove and the second mounting groove constitute the mounting cavity.

5. The turret multi-axis spindle head according to claim 1, characterized in that: The oil cylinder comprises a cylinder body and a piston. The piston is fixedly arranged in the installation cavity. The cylinder body is axially movably sleeved on the outside of the piston and is fixedly connected to the locking plate.

6. A turret multi-axis spindle head as claimed in claim 5, characterized in that: The front end of the cylinder body is provided with an annular boss, the locking plate is provided with a first annular recess for assembling the annular boss, and the fixed gear plate is provided with a second annular recess for avoiding the annular boss.

7. A turret multi-axis spindle head as claimed in claim 5, characterized in that: The tool disc is provided with several spindles for installing the tool, and is provided with a coupling connected to one of the spindles; it also includes a second driving mechanism, the second driving mechanism includes a spindle motor and a transmission assembly, the transmission assembly is arranged in the installation cavity, and is transmission-connected to the spindle motor and the coupling.

8. A turret multi-axis spindle head as claimed in claim 7, characterized in that: A cavity is provided in the middle of the piston, and the transmission assembly is arranged in the cavity.

9. A turret multi-axis spindle head as claimed in claim 8, characterized in that: The transmission assembly includes a first synchronous wheel, a second synchronous wheel and a synchronous belt; the first synchronous wheel is connected to the coupling, the second synchronous wheel is connected to the spindle motor, and the synchronous belt is arranged in the cavity and is transmission-connected to the first synchronous wheel and the second synchronous wheel.

10. A turret multi-axis spindle head according to claim 7, characterized in that: The front end of the cutter disc is provided with an inspection window and an inspection cover.

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