Power head with unequal wheelbase

Abstract

The utility model discloses a kind of unequal axle distance power heads, including box, two main shafts one, a main shaft two and a transition axle are rotatably installed in the inside of box by bearing seat, the front end of the main shaft one and main shaft two is all penetrated to the front surface of box, the transition axle is between one of main shaft one and main shaft two, the rear end of the main shaft one and main shaft gear is all equipped with main shaft gear relative to the inside of box, the surface of the transition axle is equipped with the transition gear engaged with main shaft gear;The utility model is innovated by unequal axle distance, can better match the geometric characteristics of complex workpiece, when the workpiece with special-shaped boss on processing surface, effectively avoid tool interference problem, ensure the smooth progress of processing process, improve processing quality and production efficiency;And unequal axle distance is realized by increasing transition tooth, both ensure the normal transmission of power between each power head, and can adapt to the processing demand of irregular workpiece.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool power head technology, specifically relating to a power head with unequal axis pitch. Background Technology

[0002] In the field of machine tool processing, the power head is one of the core components of a machine tool. Its performance and structure directly affect the processing capability and application range of the machine tool. Traditional machine tool power heads usually adopt an equal axis spacing design, that is, the axis spacing between each spindle is equal. This design can meet the basic processing requirements when processing some workpieces with conventional shapes. It has the advantages of simple structure and smooth transmission, and was widely used in the early machine tool manufacturing and processing applications.

[0003] However, with the continuous development of modern manufacturing, the shapes of workpieces are becoming increasingly complex and diverse. Many workpieces have special geometric features such as irregular bosses and irregular curved surfaces. When machining such complex workpieces, the limitations of traditional equal-axis-pitch power heads are becoming increasingly apparent. When there are irregular bosses on the workpiece surface, the equal-axis-pitch power head layout may cause the tool to interfere with the boss or other components during machining, making it impossible to complete the machining task normally, and may even damage the tool and workpiece, affecting machining quality and production efficiency. In addition, in order to meet the machining needs within a certain range, the equal-axis-pitch design often increases the redundant axis pitch. This means that when machining some workpieces, the axis pitch between some spindles is not fully utilized. This not only increases the overall size of the power head, making the machine tool structure less compact and occupying more production space, but also increases the manufacturing cost and operating energy consumption of the machine tool. For example, when machining some workpieces with specific irregular shapes, using a power head with four equal-pitch spindles may result in some spindles not playing a practical role in the machining process, but they cannot be omitted due to the axis pitch limitation, resulting in a waste of resources. Therefore, this utility model proposes an unequal-axis-pitch power head. Utility Model Content

[0004] The purpose of this invention is to provide a power head with unequal wheelbase to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an unequal wheelbase power head, comprising...

[0006] The housing consists of two main shafts (one type), one main shaft (two type), and a transition shaft, which are rotatably mounted inside the housing via bearing seats. The front ends of the main shafts (one type and two type) extend to the front surface of the housing. The transition shaft is located between one of the main shafts (one type and two type). The rear ends of the main shafts (one type and two type) and the main shaft gears are each mounted with a main shaft gear relative to the inner side of the housing. The surface of the transition shaft is mounted with a transition gear that meshes with the main shaft gear.

[0007] A base plate is fixed to the rear surface of the housing, and a motor frame is fixed behind the base plate. A servo motor is fixed to the rear surface of the motor frame. A motor shaft is also rotatably mounted on the inner side of the housing relative to the two main shafts. A motor gear that meshes with the gears of the two main shafts is mounted on the surface of the motor shaft. The rear end of the motor shaft extends through to the rear surface of the base plate and is connected to the motor output shaft at the front end of the servo motor.

[0008] Preferably, a sleeve frame is fixed to the front surface of the motor frame, and the sleeve frame covers the connection between the rear end of the motor shaft and the motor output shaft inside.

[0009] Preferably, the front end of the motor output shaft is inserted into the inner side of the rear end of the motor shaft, four strip-shaped wire-cut grooves are evenly opened on the rear end surface of the motor shaft, a clamping ring is fitted and fixed on the rear end surface of the motor shaft, a strip-shaped wire-cut groove is opened at the bottom of the clamping ring, and the bottom end of the clamping ring is locked by a screw.

[0010] Preferably, the bottom surface of the clamping ring has two symmetrically formed screw grooves, and the inner wall of the screw grooves has a through screw hole for the screw to pass through.

[0011] Preferably, it further includes an auxiliary positioning structure, which is disposed on the inner wall of the clamping ring.

[0012] Preferably, the auxiliary positioning structure includes two symmetrically arranged arc-shaped inner pads embedded in the inner wall of the clamping ring. The inner surface of the arc-shaped inner pads is provided with an integral positioning protrusion, and the positioning protrusion corresponds to the strip-shaped wire-cut groove.

[0013] Preferably, the inner wall of the clamping ring has two symmetrical arc-shaped grooves that are adapted to the arc-shaped inner pad, and the arc-shaped inner pad is embedded in the arc-shaped groove.

[0014] Preferably, the outer surface of the arc-shaped inner pad is provided with two integrated T-shaped clips, and the inner wall of the arc-shaped pad groove is provided with two T-shaped slots for the T-shaped clips to be inserted.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: The unequal-axis-pitch power head of this utility model, through its innovative design, can better match the geometric features of complex workpieces. When machining workpieces with irregularly shaped bosses on the surface, it effectively avoids tool interference, ensuring smooth machining and improving machining quality and production efficiency. Furthermore, by adding transition teeth to achieve unequal axis pitch, it ensures normal power transmission between power heads and adapts to the machining needs of irregular workpieces. Simultaneously, this unequal-axis-pitch design better conforms to the actual workpiece shape, avoiding excessively redundant axis pitch. For example, three non-unequal-pitch spindles can replace four unequal-pitch spindles to complete the same task, reducing the number of spindles, making the machine tool structure more compact, lowering manufacturing costs and operating energy consumption, and reducing floor space. This provides enterprises with the possibility of achieving more efficient machining within limited production space, demonstrating significant economic benefits and practical value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection between the motor shaft and the motor output shaft of this utility model;

[0019] Figure 4 This utility model Figure 3 A magnified view of a portion of region A in the middle;

[0020] Figure 5 This is a side sectional view of the clamping ring of this utility model;

[0021] Figure 6 This utility model Figure 5 A magnified view of a portion of region B in the middle;

[0022] In the diagram: 1. Housing; 2. Base plate; 3. Motor frame; 31. Sleeve frame; 4. Servo motor; 41. Motor output shaft; 51. Spindle 1; 52. Spindle 2; 53. Spindle gear; 54. Transition shaft; 55. Transition gear; 56. Motor shaft; 561. Strip-cut groove 1; 57. Motor gear; 6. Clamping ring; 61. Strip-cut groove 2; 62. Screw slot; 63. Screw hole; 65. Auxiliary positioning structure; 651. Arc-shaped inner pad; 652. Arc-shaped pad groove; 653. Positioning protrusion; 654. T-shaped chuck; 655. T-shaped chuck groove. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] Please see Figures 1 to 5 This is the first embodiment of the present utility model, which provides the following technical solution: a power head with unequal wheelbase, comprising...

[0026] The housing 1 is rotatably mounted inside the housing 1 via bearing seats. Two main shafts 51 (first type), one main shaft 52, and one transition shaft 54 ​​are rotatably mounted inside the housing 1. The front ends of both main shafts 51 and 52 extend to the front surface of the housing 1. The transition shaft 54 ​​is positioned between one of the main shafts 51 and 52. Main shaft gears 53 are mounted on the rear ends of both main shafts 51 and 52 relative to the inner side of the housing 1. A transition gear 55, meshing with the main shaft gear 53, is mounted on the surface of the transition shaft 54. Under the action of the transition shaft 54 ​​and the transition gear 55, the main shafts 51 and 52 can rotate... The system allows for normal power transmission between the three spindles, resulting in unequal-pitch power heads with different axis distances. This effectively avoids tool interference when machining workpieces with irregularly shaped bosses, ensuring smooth machining and improving machining quality and production efficiency. Furthermore, this unequal-pitch design better matches the actual workpiece shape, avoiding excessively redundant axis distances. For example, three unequal-pitch spindles can replace four unequal-pitch spindles to complete the same task, reducing the number of spindles, making the machine tool structure more compact, lowering manufacturing costs and operating energy consumption, and reducing floor space.

[0027] A base plate 2 is bolted to the rear surface of housing 1, and a motor frame 3 is bolted to the rear of the base plate 2. A servo motor 4 is bolted to the rear surface of the motor frame 3. A motor shaft 56 is rotatably mounted on the inner side of housing 1 above the two spindles 51. A motor gear 57 that meshes with the two spindle gears 53 is mounted on the surface of the motor shaft 56. The rear end of the motor shaft 56 extends through the rear surface of the base plate 2 and is connected to the motor output shaft 41 at the front end of the servo motor 4. In actual operation, the power of the servo motor 4 is transmitted to the motor shaft 56 through the motor output shaft 41 at the front end. The motor shaft 56 drives the two spindles 51 to rotate through the meshing between the motor gear 57 and the spindle gear 53. The power is transmitted between the two spindles 51 and the spindle 52 through the transition shaft 54 ​​and the transition gear 55. This allows for synchronous rotation between the two spindles 51 and the spindle 52, achieving a one-to-three effect, saving motor costs, reducing tool change time, and the unequal axis design can adapt to the processing needs of irregular workpieces.

[0028] In this embodiment, preferably, a sleeve 31 is fixed on the front surface of the motor frame 3, and the sleeve 31 covers the connection between the rear end of the motor shaft 56 and the motor output shaft 41 as well as the clamping ring 6 inside, so as to play a protective role.

[0029] In this embodiment, preferably, the front end of the motor output shaft 41 is inserted into the inner side of the rear end of the motor shaft 56. The rear end of the motor shaft 56 is a cylindrical structure that can be used to connect the front end of the motor output shaft 41. Four strip-shaped wire-cut grooves 561 are evenly distributed on the rear end surface of the motor shaft 56. A clamping ring 6 is fitted and fixed on the rear end surface of the motor shaft 56. A second strip-shaped wire-cut groove 61 is distributed at the bottom of the clamping ring 6. The bottom end of the clamping ring 6 is locked with screws. Due to the design of the second and first strip-shaped wire-cut grooves 561, the rear end of the motor shaft 56 and the clamping ring 6 can produce a certain elastic deformation. In actual installation, after the clamping ring 6 is locked with screws, the motor shaft 56 can be clamped so that the motor shaft 56 clamps the motor output shaft 41, realizing the smooth connection between the motor shaft 56 and the motor output shaft 41. At this time, the servo motor 4 can transmit power normally without the need to purchase a coupling separately.

[0030] In this embodiment, preferably, two screw grooves 62 are symmetrically formed on the bottom surface of the clamping ring 6, and the inner wall of the screw groove 62 is provided with a screw hole 63 for the screw to pass through. This allows the operator to easily lock the bottom of the clamping ring 6 with screws after putting the clamping ring 6 on the rear end surface of the motor shaft 56, thereby clamping the motor shaft 56 and making the motor shaft 56 fit tightly with the motor output shaft 41 to complete the power transmission.

[0031] Example 2

[0032] Please see Figures 1 to 6This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but with the difference that it also includes an auxiliary positioning structure 65. The auxiliary positioning structure 65 is disposed on the inner wall of the clamping ring 6, which can realize auxiliary positioning when the clamping ring 6 is fitted on the surface of the motor shaft 56, and prevent the clamping ring 6 from rotating on the surface of the motor shaft 56.

[0033] In this embodiment, preferably, the auxiliary positioning structure 65 includes two symmetrically arranged arc-shaped inner pads 651 embedded in the inner wall of the clamping ring 6. The inner surface of the arc-shaped inner pads 651 is provided with an integral positioning protrusion 653, and the positioning protrusion 653 corresponds to the strip-shaped wire-cut groove 561. This allows the positioning protrusion 653 to slide into the strip-shaped wire-cut groove 561 when the clamping ring 6 is subsequently fitted onto the rear end of the motor shaft 56, thereby achieving auxiliary positioning when the clamping ring 6 is fitted, preventing the clamping ring 6 from rotating after being fitted onto the rear end surface of the motor shaft 56, and ensuring stability during installation.

[0034] In this embodiment, preferably, the inner wall of the clamping ring 6 is symmetrically provided with two arc-shaped grooves 652 that are adapted to the arc-shaped inner pad 651, and the arc-shaped inner pad 651 is embedded in the arc-shaped groove 652, so that the arc-shaped inner pad 651 does not affect the clamping ring 6 being properly fitted on the rear end surface of the motor shaft 56, thus realizing the embedded installation of the arc-shaped inner pad 651. The outer surface of the arc-shaped inner pad 651 is provided with two integrated T-shaped clips 654. The arc-shaped inner pad 651, the positioning protrusion 653 and the T-shaped clips 654 are all made of fluororubber, which can undergo a certain elastic deformation when squeezed. The inner wall of the arc-shaped groove 652 is provided with two T-shaped slots 655 for the T-shaped clips 654 to be inserted into, so that after the arc-shaped inner pad 651 is pushed into the arc-shaped groove 652, the T-shaped clips 654 will be inserted into the T-shaped slots 655 to achieve stable installation of the arc-shaped inner pad 651.

[0035] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power head with unequal wheelbase, characterized in that: include The housing (1) includes two main shafts (51), one main shaft (52), and one transition shaft (54) rotatably mounted inside the housing (1) via bearing seats. The front ends of the main shafts (51) and (52) extend to the front surface of the housing (1). The transition shaft (54) is located between one of the main shafts (51) and (52). The rear ends of the main shafts (51) and the main shaft gears (53) are mounted on the inner side of the housing (1). The surface of the transition shaft (54) is equipped with a transition gear (55) that meshes with the main shaft gears (53). A base plate (2) is fixed to the rear surface of the housing (1), and a motor frame (3) is fixed to the rear of the base plate (2). A servo motor (4) is fixed to the rear surface of the motor frame (3). A motor shaft (56) is also rotatably mounted on the inner side of the housing (1) relative to the two main shafts (51). A motor gear (57) that meshes with the two main shaft gears (53) is mounted on the surface of the motor shaft (56). The rear end of the motor shaft (56) extends through to the rear surface of the base plate (2) and is connected to the motor output shaft (41) at the front end of the servo motor (4).

2. The unequal wheelbase power head according to claim 1, characterized in that: The front surface of the motor frame (3) is fixed with a sleeve (31), and the sleeve (31) covers the connection between the rear end of the motor shaft (56) and the motor output shaft (41) inside.

3. The unequal wheelbase power head according to claim 2, characterized in that: The front end of the motor output shaft (41) is inserted into the inner side of the rear end of the motor shaft (56). Four strip-shaped wire-cut grooves (561) are evenly opened on the rear end surface of the motor shaft (56). A clamping ring (6) is sleeved and fixed on the rear end surface of the motor shaft (56). A strip-shaped wire-cut groove (61) is opened at the bottom of the clamping ring (6). The bottom end of the clamping ring (6) is locked by screws.

4. A power head with unequal wheelbase according to claim 3, characterized in that: The bottom surface of the clamping ring (6) has two symmetrical screw grooves (62), and the inner wall of the screw grooves (62) has a screw hole (63) for screws to pass through.

5. A power head with unequal wheelbase according to claim 4, characterized in that: It also includes an auxiliary positioning structure (65), which is disposed on the inner wall of the clamping ring (6).

6. A power head with unequal wheelbase according to claim 5, characterized in that: The auxiliary positioning structure (65) includes two arc-shaped inner pads (651) that are symmetrically embedded in the inner wall of the clamping ring (6). The inner surface of the arc-shaped inner pads (651) is provided with an integral positioning protrusion (653), and the positioning protrusion (653) corresponds to the strip-shaped wire-cut groove (561).

7. A power head with unequal wheelbase according to claim 6, characterized in that: The inner wall of the clamping ring (6) is symmetrically provided with two arc-shaped grooves (652) that are adapted to the arc-shaped inner pad (651), and the arc-shaped inner pad (651) is embedded in the arc-shaped groove (652).

8. A power head with unequal wheelbase according to claim 7, characterized in that: The outer surface of the arc-shaped inner pad (651) is provided with two integrated T-shaped clips (654), and the inner wall of the arc-shaped pad groove (652) is provided with two T-shaped slots (655) for the T-shaped clips (654) to be inserted.

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