A power machining mechanism of a precision machine tool

Abstract

The utility model discloses a kind of power processing mechanisms of precision machine tool, including power mounting seat, driving motor, end milling power head and side milling power head, driving motor, end milling power head and side milling power head are all set on power mounting seat, input bevel gear, end milling output bevel gear and side milling output bevel gear are rotationally arranged in power mounting seat, coaxially be provided with end milling output spur gear on end milling input bevel gear, gear on end milling power head is engaged with end milling output spur gear, coaxially be provided with side milling output spur gear on side milling input bevel gear, gear on side milling power head is engaged with side milling output spur gear, input bevel gear is connected with driving motor, end milling output bevel gear and side milling output bevel gear are all engaged with input bevel gear.The utility model installs driving motor in the side of power mounting seat, simplifies structure, and overall assembly is more convenient.

Description

Technical Field

[0001] This utility model relates to a power processing mechanism for a precision machine tool, belonging to the field of machine tools. Background Technology

[0002] The power machining mechanism of a precision machine tool is an important component. Chinese invention patent application CN115533533A discloses a secondary shaft structure, namely a power machining mechanism, which includes a base, a tool drive servo motor, gear shaft A, gear shaft B, and gear D. The base includes base unit A and base unit B. The tool drive servo motor is mounted on base unit A. The output shaft of the tool drive servo motor passes through base unit A and extends into gear cavity A, where gear A is mounted. Gear shaft A is vertically arranged in gear cavity A, and gear B and bevel gear A are mounted on it. Gear B meshes with gear A. Gear shaft B is horizontally arranged in gear cavity A, and gear C and bevel gear B are mounted on it. Bevel gear A and bevel gear B mesh. Gear D is rotatably arranged in gear cavity A and is driven to rotate by gear C.

[0003] In the aforementioned patent application, the output shaft that drives the power head to rotate and process the workpiece is located at the top of the base. It occupies a large space in the vertical direction. During the processing of the workpiece, when the operator opens the machine tool protective door to observe the processing of the workpiece, the large space occupied in the vertical direction means that if the operator wants to observe the processing of the workpiece on the main spindle side from the side of the secondary spindle, the secondary spindle structure will obstruct the processing of the workpiece on the main spindle side, which is not conducive to observing the processing of the workpiece on the main spindle side. Similarly, from the side of the secondary spindle, it is not conducive to observing the processing of the workpiece on the main spindle side.

[0004] In the aforementioned patent application, the output shaft of the tool drive servo motor is vertically positioned on the top of the base, which is slidably mounted on the support. Vertical movement is driven by a lifting drive motor mounted on the top of the support. Since both the tool drive servo motor and the lifting drive motor have vertical output shafts, the base needs to maintain a certain distance from the support to avoid interference from the lifting drive motor to the tool servo motor during base lifting. Therefore, the aforementioned patent application requires a sliding plate to be installed on the base, with a slider mounted on the sliding plate that slides into the guide rail on the base. This increases the distance between the base and the support, thereby increasing the horizontal distance between the lifting drive motor and the tool drive servo motor, causing them to be horizontally offset. When the tool drive servo motor moves vertically with the substrate, the lifting drive motor will not interfere with the tool drive servo motor. This structure is more complex due to the sliding plate on the base, and the overall assembly steps are more cumbersome. Summary of the Invention

[0005] The purpose of this utility model is to provide a power processing mechanism for a precision machine tool, which solves the technical defect in the prior art where the drive motor for rotating the power head occupies a large space in the vertical direction due to its vertical setting, thus affecting the observation of the workpiece processing on the main spindle side or the secondary spindle side.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: a power processing mechanism for a precision machine tool, including a power mounting base, a drive motor, an end milling power head, and a side milling power head. The power mounting base is mounted on the machine tool bed in the use state and can move vertically on the machine tool bed. The drive motor, the end milling power head, and the side milling power head are all mounted on the power mounting base. The drive motor is used to drive the end milling power head and the side milling power head to rotate. An input bevel gear, an end milling output bevel gear, and a side milling output bevel gear are rotatably arranged inside the power mounting base. An end milling output spur gear is coaxially arranged on the end milling input bevel gear. The gear on the end milling power head meshes with the end milling output spur gear. A side milling output spur gear is coaxially arranged on the side milling input bevel gear. The gear on the side milling power head meshes with the side milling output spur gear. The input bevel gear is connected to the drive motor. The end milling output bevel gear and the side milling output bevel gear both mesh with the input bevel gear. This invention, by setting end-milling output bevel gears and side-milling output bevel gears that mesh with the input bevel gear, allows the output shaft of the drive motor to be installed horizontally. Compared to the prior art where the output shaft of the drive motor is vertically positioned, this invention occupies less space in the vertical direction. When the machine tool safety door is opened, it does not obstruct the main spindle side or the auxiliary spindle side. The machining of the workpiece on the auxiliary spindle side can be directly observed from the main spindle side, and vice versa. Furthermore, this invention mounts the drive motor on one side of the power mounting base. When the machine tool bed moves up and down, the drive motor is not interfered with by the lifting motor that drives the power mounting base to move up and down. Therefore, the distance between the power mounting base and the support base on the machine tool bed can be minimized as much as possible. The power mounting base can be directly slidably mounted on the support base, which simplifies the structure and makes the overall assembly more convenient. It is not necessary to install a sliding plate on the power mounting base to increase the distance between the power mounting base and the support base to avoid interference from the lifting motor to the drive motor when the power mounting base moves up and down. Compared with the prior art, the structure of this invention is more compact and the range of vertical movement can be greater.

[0007] As a further improvement of this utility model, an input spur gear is coaxially mounted on the input bevel gear, and a motor gear is mounted on the output shaft of the drive motor. The motor gear meshes with the input spur gear. By setting the motor gear to mesh with the input spur gear coaxial with the input bevel gear, this utility model not only achieves speed change, but also ensures that the center line of the drive motor's output shaft is not collinear with the center line of the input bevel gear. This allows the horizontally mounted drive motor to be positioned relatively high on the power mounting base, leaving sufficient space on the power mounting base below the drive motor to install an oil drain that provides lubrication to gears, etc.

[0008] As a further improvement of this utility model, it also includes one or more end-milling transition gears rotatably disposed within the power mounting base and meshing with the end-milling output spur gear. The number of end-milling power heads is one or more, and the gears on these power heads mesh with the end-milling transition gears. By providing end-milling transition gears, this utility model can simultaneously provide power to multiple end-milling power heads.

[0009] As a further improvement of this invention, it also includes one or more side-milling transition gears rotatably disposed within the power mounting base and meshing with the side-milling output spur gear. The number of side-milling power heads is one or more, and the gears on these power heads mesh with the side-milling transition gears. By providing side-milling transition gears, this invention can simultaneously provide power to multiple side-milling power heads.

[0010] As a further improvement of this utility model, it also includes a gear upper cover plate and a gear side cover plate. The gear upper cover plate is detachably installed on the top of the power mounting base, used to enclose the side-milling input bevel gear and the side-milling output spur gear within the power mounting base from the side away from the side-milling power head. The gear side cover plate is detachably installed on the side of the power mounting base, used to enclose the end-milling input bevel gear and the end-milling output spur gear within the power mounting base from the side away from the end-milling power head. This utility model, by providing the gear upper cover plate and the gear side cover plate, encloses all gears inside the power mounting base. Furthermore, both the gear upper cover plate and the gear side cover plate are detachably installed with the power mounting base, facilitating the inspection and maintenance of the internal gear transmission structure.

[0011] As a further improvement of this utility model, it also includes a motor mounting plate. The drive motor is detachably mounted on the motor mounting plate, which is detachably mounted on the power mounting base. The input bevel gear is enclosed within the power mounting base, and the output shaft of the drive motor passes through the motor mounting plate and connects to the input bevel gear. This utility model provides a motor mounting plate, which, on the one hand, further encloses the gear within the power mounting base, and on the other hand, facilitates the installation of the drive motor.

[0012] As a further improvement of this invention, a boring bar is also included. The boring bar is mounted on the power mounting base on the side away from the drive motor and is arranged parallel to the end milling power head. This invention, by including the boring bar, allows for the machining of internal holes in the workpiece.

[0013] As a further improvement of this utility model, multiple sliders are arranged on the side of the power mounting base away from the end milling power head and fixed with threaded sleeves. A slide rail is arranged vertically on the support base on the machine tool bed, and the sliders slide with the slide rail. A lifting motor and a lead screw driven by the motor are arranged on the support base, and the lead screw passes through the threaded sleeve and is threaded with the threaded sleeve. This utility model directly installs sliders on the power mounting base and slides them on the support base. Compared with the prior art, this reduces the need to install a sliding plate on the power mounting base, simplifies the structure, and facilitates the installation of this utility model.

[0014] In summary, the beneficial effects of this utility model are as follows: By setting the end milling output bevel gear and the side milling output bevel gear to mesh with the input bevel gear simultaneously, the output shaft of the drive motor can be set in the horizontal direction. Therefore, it is not necessary to install a sliding plate on the power mounting base. Instead, the power mounting plate can be directly slidably mounted on the support base on the machine tool bed through the slider and guide rail. Compared with the prior art, the structure of this utility model is simpler, occupies less space, and is more compact. Attached Figure Description

[0015] Figure 1 This is the front view of this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a three-dimensional exploded view of the present invention.

[0018] Figure 4 This is a three-dimensional exploded view of the present invention from another perspective.

[0019] Figure 5 This is a schematic diagram of the meshing of the input bevel gear, the end-milled output bevel gear, and the side-milled output bevel gear in this utility model.

[0020] Figure 6 This is a schematic diagram showing another angle of meshing of the input bevel gear, the end milling output bevel gear, and the side milling output bevel gear in this utility model.

[0021] The components are as follows: 1. Power mounting base; 2. Drive motor; 3. End milling power head; 4. Side milling power head; 5. Input bevel gear; 6. End milling input bevel gear; 7. Side milling output bevel gear; 8. End milling output spur gear; 9. Side milling output spur gear; 10. Input spur gear; 11. Motor gear; 12. End milling transition gear; 121. End milling transition bevel gear A; 122. End milling transition bevel gear B; 123. End milling transition bevel gear C; 13. Side milling transition gear; 131. Side milling transition gear A; 132. Side milling transition gear B; 14. Gear upper cover plate; 15. Gear side cover plate; 16. Motor mounting plate; 17. Boring tool; 18. Slider; 19. Threaded sleeve. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0023] like Figures 1 to 4 The power machining mechanism of the precision machine tool shown includes a power mounting base 1, a drive motor 2, an end milling power head 3, and a side milling power head 4. The power mounting base 1 is mounted on the machine tool bed (not shown in the figure) in the use state and can move vertically on the machine tool bed. The drive motor 2, the end milling power head 3, and the side milling power head 4 are all mounted on the power mounting base 1. The end milling power head 2 is mounted on the power mounting base 1 along the X-axis direction, and the side milling power head 4 is mounted on the power mounting base 1 along the Z-axis direction and is set downward. The output shaft of the drive motor 4 is set along the Y-axis direction. The drive motor 2 is used to drive the end milling power head 3 and the side milling power head 4 to rotate, so as to perform end milling and side milling machining on the workpiece, respectively.

[0024] like Figures 1 to 6As shown, the present invention has a gear cavity on the power mounting base 1. An input bevel gear 5, an end milling output bevel gear 6, and a side milling output bevel gear 7 are rotatably arranged within the gear cavity. An end milling output spur gear 8 is coaxially arranged on the end milling input bevel gear 5. The common rotation axis of the end milling input bevel gear 5 and the end milling output spur gear 8 is located along the X-axis direction within the gear cavity and is rotatably mounted to the power mounting base 1 using bearings. An end milling power head mounting hole (not shown in the figure) communicating with the gear cavity is provided on the power mounting base 1 along the X-axis direction. One end of the end milling power head 3, equipped with a gear, is inserted into the end milling power head mounting hole. Inside, the gear on the end milling power head 3 meshes with the end milling output spur gear 8. A side milling output spur gear 9 is coaxially mounted on the side milling input bevel gear 5. The common rotation axis of the side milling input bevel gear 5 and the side milling output spur gear 9 is located within the gear cavity along the Z-axis and is rotatably mounted to the power mounting base 1 using bearings. A side milling power head mounting hole (not shown in the figure) communicating with the gear cavity is provided on the upper part of the power mounting base 1 along the Z-axis. One end of the side milling power head 4 with the gear is inserted into the side milling power head mounting hole, causing the gear on the side milling power head 4 to mesh with the side milling output spur gear 9. The rotating shaft of gear 5 is rotatably mounted on the power mounting base 1 using bearings, and the input bevel gear 5 is located in the gear cavity. The input bevel gear 5 is connected to the output shaft of the drive motor 2. The end milling output bevel gear 6 and the side milling output bevel gear 7 are both meshed with the input bevel gear 5. In this utility model, the drive motor 2 drives the input bevel gear 5 to rotate. Since the end milling output bevel gear 6 and the side milling output bevel gear 7 are both meshed with the input bevel gear 5, the input bevel gear 5 simultaneously drives the end milling output bevel gear 6 and the side milling output bevel gear 7 to rotate. The end milling output spur gear 8 rotates synchronously with the end milling output bevel gear 6, and the side milling output spur gear 9... The side milling output bevel gear 7 rotates synchronously, thereby driving the end milling power head 3 and the side milling power head 4 to rotate respectively. Because the present invention is equipped with an input bevel gear 5, an end milling output bevel gear 6 and a side milling output bevel gear 7, the output shaft of the drive motor 2, the end milling power head 3 and the side milling power head 4 can be set in a pairwise perpendicular direction, so that the drive motor 2 can be set in a horizontal direction. During use, it will not interfere with the lifting motor of the drive power mounting seat 1. Therefore, it is not necessary to install a sliding plate on the power mounting seat 1 and slide it on the support seat on the machine tool bed, which can reduce the space occupied by the present invention.

[0025] like Figures 1 to 6As shown, in this invention, an input spur gear 10 is coaxially mounted on the input bevel gear 5, and a motor gear 11 is mounted on the output shaft of the drive motor 2. The motor gear 11 is located above the input spur gear 10 and meshes with the input spur gear 10. The drive motor 2 drives the motor gear 11 to rotate. The motor gear 11, through meshing with the input spur gear 10, drives the input spur gear 10 to rotate, which in turn drives the input bevel gear 5, which is coaxial with it, to rotate. In this invention, the drive motor 2 and the input bevel gear 5 are connected by the meshing of the motor gear 11 and the input spur gear 10. This not only serves to change speed but also makes the arrangement of the motors in this invention more reasonable.

[0026] like Figures 3 to 6 As shown, this utility model provides one or more end-milling transition gears 12 rotatably mounted in the gear cavity of the power mounting base 1 and meshing with the end-milling output spur gear 8. The rotation shaft of the end-milling transition gear 12 is rotatably mounted to the power mounting base 1 using bearings. There is one or more end-milling power heads 3, and the gears on the end-milling power heads 3 mesh with the end-milling transition gears 12. In this utility model, there are three end-milling transition gears 12, respectively denoted as end-milling transition bevel gear A121, end-milling transition bevel gear B122, and end-milling transition bevel gear C123. Among them, the end-milling transition bevel gear A121 is located below the end-milling output spur gear 8 and meshes with the end-milling output spur gear 8, while the end-milling transition bevel gear B122 and end-milling transition bevel gear C123 are located below the end-milling output spur gear 8 and mesh with the end-milling output spur gear 8. Gear B122 and end milling transition bevel gear C123 are both located below end milling transition bevel gear A121 and mesh with end milling transition bevel gear A121. End milling transition bevel gear B122 and end milling transition bevel gear C123 do not mesh. There are three end milling power heads 3, two of which are located below end milling transition bevel gear B122 and mesh with end milling transition bevel gear B122, and the other end milling power head 3 is located below end milling transition bevel gear C123 and meshes with end milling transition bevel gear C123. In this utility model, the center lines of the three end milling power heads 3 are located on the same horizontal plane, and there is no meshing relationship between the three end milling power heads 3.

[0027] like Figure 3 and Figure 4As shown, this utility model is provided with one or more side milling transition gears 13 rotatably disposed in the power mounting base 1 and meshing with the side milling output spur gear 9. There is one or more side milling power heads 4, and the gears on them mesh with the side milling transition gears 13. In this utility model, there are two side milling transition gears 13, which are respectively denoted as side milling transition gear A131 and side milling transition gear B132. Both side milling transition gears A131 and B132 mesh with the side milling output spur gear 9. There are three side milling power heads 4, of which two side milling power heads 4 mesh with side milling transition gear A131, and the other side milling power head 4 meshes with side milling transition gear B132. The center lines of the three side milling power heads 4 are located on the same vertical plane, and there is no meshing relationship between the three side milling power heads 4.

[0028] like Figures 1 to 4 As shown, the optimal configuration of this utility model includes a gear upper cover plate 14 and a gear side cover plate 15. The gear upper cover plate 14 is detachably mounted on the top of the power mounting base 1 using multiple bolts. It encloses the side-milling input bevel gear 5, side-milling output spur gear 9, side-milling transition gear A131, and side-milling transition gear B132 within the power mounting base 1 from the side away from the side-milling power head 4. The outer ring of the bearing at the top of the rotating shaft of the side-milling input bevel gear 5, side-milling transition gear A131, and side-milling transition gear B132 mates with the gear upper cover plate 14. By removing the gear upper cover plate 14, the side-milling input bevel gear 5, side-milling output spur gear 9, side-milling transition gear A131, and side-milling transition gear B132 can be inspected or replaced. The gear side cover plate 15 uses… Multiple bolts are detachably installed on the side of the power mounting base 1 to enclose the end milling input bevel gear 5, end milling output spur gear 8, end milling transition bevel gear A121, end milling transition bevel gear B122, and end milling transition bevel gear C123 within the power mounting base 1 from the side away from the end milling power head 3. The outer ring of the bearing at the end of the rotation shaft of the end milling input bevel gear 5, end milling transition bevel gear A121, end milling transition bevel gear B122, and end milling transition bevel gear C123 away from the end milling power head 3 is engaged with the gear side cover plate 15. By disassembling the gear side cover plate 15, the end milling input bevel gear 5, end milling output spur gear 8, end milling transition bevel gear A121, end milling transition bevel gear B122, and end milling transition bevel gear C123 can be inspected or replaced.

[0029] like Figures 1 to 4 As shown, this utility model is provided with a motor mounting plate 16. The drive motor 2 is detachably mounted on the motor mounting plate 16 with multiple bolts. The motor mounting plate 16 is detachably mounted on the power mounting base 1 with multiple bolts. The input bevel gear 5, the input spur gear 10 and the motor gear 11 are enclosed in the gear cavity of the power mounting base 1. The output shaft of the drive motor 2 passes through the motor mounting plate 16 and is connected to the input bevel gear 5.

[0030] like Figures 1 to 4 As shown, this utility model has multiple boring tools 17 mounted on the power mounting base 1. The boring tools 17 are arranged on the side of the power mounting base 1 away from the drive motor 2 and are arranged parallel to the end milling power head 3.

[0031] This invention features four sliders 18 on the side of the power mounting base 1 away from the end milling power head 3, with threaded sleeves 19 fixed between the sliders 18. Two slide rails (not shown) are vertically arranged on a support base (not shown) on the machine tool bed. The four sliders 18 slide in contact with the two slide rails, with each slide rail sliding in contact with two sliders 18. A lifting motor (not shown) is mounted on the top of the support base. The output shaft of the lifting motor is vertically downward, and a lead screw (not shown) is connected to the output shaft. The lead screw is driven to rotate by the lifting motor, passing downward through the threaded sleeve 19 and threadedly engaging with it. The lifting motor drives the lead screw to rotate, and the threaded engagement between the lead screw and the threaded sleeve 19 converts the rotation of the lead screw into linear motion of the threaded sleeve 19, thus allowing the power mounting base 1 to move vertically according to the processing needs of the workpiece during use.

[0032] Unless otherwise specified in the above description, all parts are existing technology or can be implemented using existing technology. Furthermore, the specific embodiments described in this utility model are merely preferred embodiments of the invention and are not intended to limit the scope of this utility model. That is, all equivalent changes and modifications made within the scope of this utility model patent should be considered within the technical scope of this utility model.

Claims

1. A power machining mechanism for a precision machine tool, comprising a power mounting base (1), a drive motor (2), an end milling power head (3), and a side milling power head (4), wherein the power mounting base (1) is mounted on the machine tool bed in use and can move vertically on the machine tool bed, the drive motor (2), the end milling power head (3), and the side milling power head (4) are all disposed on the power mounting base (1), and the drive motor (2) is used to drive the end milling power head (3) and the side milling power head (4) to rotate, characterized in that, An input bevel gear (5), an end milling output bevel gear (6), and a side milling output bevel gear (7) are rotatably mounted inside the power mounting base (1). An end milling output spur gear (8) is coaxially mounted on the end milling input bevel gear (5). The gear on the end milling power head (3) meshes with the end milling output spur gear (8). A side milling output spur gear (9) is coaxially mounted on the side milling input bevel gear (5). The gear on the side milling power head (4) meshes with the side milling output spur gear (9). The input bevel gear (5) is connected to the drive motor (2). The end milling output bevel gear (6) and the side milling output bevel gear (7) both mesh with the input bevel gear (5).

2. The power machining mechanism of the precision machine tool according to claim 1, characterized in that, An input spur gear (10) is coaxially mounted on the input bevel gear (5), and a motor gear (11) is mounted on the output shaft of the drive motor (2). The motor gear (11) meshes with the input spur gear (10).

3. The power machining mechanism of the precision machine tool according to claim 1, characterized in that, It also includes one or more end milling transition gears (12) that are rotatably disposed in the power mounting base (1) and mesh with the end milling output spur gear (8), and the number of end milling power heads (3) is one or more, and the gears on them mesh with the end milling transition gears (12).

4. The power machining mechanism of the precision machine tool according to claim 1, characterized in that, It also includes one or more side-milling transition gears (13) that are rotatably disposed in the power mounting base (1) and mesh with the side-milling output spur gear (9), and the number of side-milling power heads (4) is one or more, with the gears on them meshing with the side-milling transition gears (13).

5. The power machining mechanism of the precision machine tool according to claim 1, characterized in that, It also includes a gear top cover plate (14) and a gear side cover plate (15). The gear top cover plate (14) is detachably mounted on the top of the power mounting base (1) for enclosing the side milling input bevel gear (5) and the side milling output spur gear (9) in the power mounting base (1) from the side away from the side milling power head (4). The gear side cover plate (15) is detachably mounted on the side of the power mounting base (1) for enclosing the end milling input bevel gear (5) and the end milling output spur gear (8) in the power mounting base (1) from the side away from the end milling power head (3).

6. The power machining mechanism of the precision machine tool according to claim 1, characterized in that, It also includes a motor mounting plate (16), on which the drive motor (2) is detachably mounted. The motor mounting plate (16) is detachably mounted on the power mounting base (1), which encloses the input bevel gear (5) inside the power mounting base (1). The output shaft of the drive motor (2) passes through the motor mounting plate (16) and connects to the input bevel gear (5).

7. The power machining mechanism of the precision machine tool according to claim 1, characterized in that, It also includes a boring bar (17), which is set on the side of the power mounting base (1) away from the drive motor (2) and is set parallel to the end milling power head (3).

8. The power machining mechanism of the precision machine tool according to claim 1, characterized in that, Multiple sliders (18) are provided on the side away from the end milling power head (3) of the power mounting base (1) and threaded sleeves (19) are fixed thereon. A slide rail is provided on the support base on the machine tool bed in the vertical direction. The sliders (18) slide with the slide rail. A lifting motor and a lead screw driven by it are provided on the support base. The lead screw passes through the threaded sleeve (19) and is threaded with the threaded sleeve (19).

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