An integrated roller cam wobble head

Abstract

The utility model relates to mechanical engineering field, concretely relates to a kind of integrated roller cam swing head, including box, motor body is fixedly arranged in the inside one side of box, the output end of motor body is fixedly connected with pinion, gear fixing shaft is fixedly provided on the box, transition gear is rotatably sleeved on the gear fixing shaft, the transition gear is engaged with pinion, camshaft is rotatably provided on the box.The utility model passes through the integrated structure design, and motor, gear transmission, turret, brake and the like component are reasonably integrated in box, compared with dispersed structure, reduce the connecting gap between components and assembly error, swing head rigidity is obviously improved, in numerical control machine tool processing, high rigidity makes swing head can withstand greater cutting force, stable realization tool overturn, linkage processing camber surface and the like action, reduce processing deformation, guarantee processing accuracy, swing head service life is improved simultaneously, reduce equipment maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering, specifically to an integrated roller cam swing head. Background Technology

[0002] Roller cam oscillating heads are transmission components commonly used in automated equipment, CNC machine tools, and other fields. Through the cooperation of cams and rollers, they achieve precise oscillation, indexing, and other movements, providing power and motion transmission for actions such as tool flipping and arc surface linkage machining during the machining process. They are one of the key components to ensure the machining accuracy and efficiency of equipment. In practical applications, roller cam oscillating heads generally face the problem of balancing precision and rigidity. Since their motion requires precise power transmission, any working error may affect the machining accuracy. Frequent reciprocating motion also places high demands on structural rigidity. The common approach on the market is to use a split structure, that is, the roller cam oscillating head is a separate structure, locked on the oscillating head mounting seat, and the oscillating head mounting seat is locked on the slider, attempting to control precision by disassembling the parts and assembling them step by step. However, this split structure has obvious drawbacks: on the one hand, the split structure will generate cumulative errors in the parts. In order to ensure the final motion accuracy, higher precision requirements must be imposed on individual parts, which increases the difficulty and cost of part processing. On the other hand, there are many coordination links between the swing head and the mounting base, which requires strict installation process and is prone to errors due to improper assembly. More importantly, the split structure has poor rigidity and is prone to slight deformation when subjected to loads such as machining cutting forces, which affects motion accuracy and equipment stability, making it difficult to meet the processing requirements of high precision and high rigidity.

[0003] Therefore, an integrated roller cam swing head is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an integrated roller cam swing head, which can solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an integrated roller cam swing head, comprising a housing, wherein a motor body is fixedly disposed on one side inside the housing, and a pinion is fixedly connected to the output end of the motor body; A gear fixing shaft is fixedly inserted through the housing, and a transition gear is rotatably sleeved on the gear fixing shaft, the transition gear meshing with the pinion; A camshaft is rotatably mounted on the housing, and a large gear is fixedly connected to the camshaft, which meshes with a transition gear. The housing is rotatably mounted with a turret via bearings, and the camshaft is driven by the turret via rollers; A flange is fixedly connected to the turret; A clamping seat is fixedly installed on the box body, and a clamp is fixedly connected to the clamping seat; A brake shaft is fixedly connected to the turret, and the clamp engages the brake shaft to achieve braking.

[0006] Preferably, a shock-absorbing pad is provided between the motor body and the housing, and the shock-absorbing pad is sleeved on the outside of the fixing bolts of the motor body.

[0007] Preferably, both ends of the gear fixing shaft are fitted with bushings, which are fixedly embedded in the mounting holes of the housing, and the bushings and the gear fixing shaft are interference fit.

[0008] Preferably, a positioning ring is fixedly sleeved on the camshaft, the positioning ring is located between the large gear and the inner wall of the housing, and the outer diameter of the positioning ring is larger than the diameter of the hole where the camshaft and the housing meet.

[0009] Preferably, the roller is rotatably mounted on the inner wall of the turret via a roller shaft, the roller shaft and the turret are tightly fitted, and the outer circumferential surface of the roller is provided with a wear-resistant coating.

[0010] Preferably, the clamp includes two symmetrically arranged jaws, one end of each jaw is rotatably connected to the clamp seat, and the other end is provided with an arc-shaped engagement surface, which is adapted to the outer peripheral surface of the brake shaft.

[0011] Preferably, the connection surface between the flange and the turret is provided with a positioning boss, and a positioning groove is provided at the corresponding position of the turret. The positioning boss is embedded in the positioning groove, and the flange and the turret are fixedly connected by bolts evenly distributed around the circumference.

[0012] Compared with the prior art, the present invention provides an integrated roller cam swing head, which has the following advantages: 1. The integrated roller cam swivel head adopts an integrated structural design, which rationally integrates components such as motor, gear transmission, turret, and brake into the housing. Compared with the decentralized structure, it reduces the connection gap and assembly error between components, and significantly improves the rigidity of the swivel head. In CNC machine tool processing, the high rigidity enables the swivel head to withstand greater cutting forces, stably realize the tool flipping and linkage machining of curved surfaces, reduce machining deformation, ensure machining accuracy, and at the same time extend the service life of the swivel head and reduce equipment maintenance costs. 2. The design and assembly of each component of the oscillating head are optimized, such as the motor vibration damping pad, gear fixing shaft bushing, and flange positioning boss. These designs simplify the assembly process between components, reduce the requirements for assembly personnel skills and tooling equipment, reduce assembly time and errors, and enable the oscillating head to be assembled quickly in actual production, shorten the equipment debugging cycle, reduce installation difficulty, facilitate equipment maintenance and component replacement, and improve production efficiency and equipment operation and maintenance convenience. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of an integrated roller cam swivel head according to the present invention. Figure 2 This is a cross-sectional view of the internal transmission mechanism of an integrated roller cam oscillating head according to this utility model. Figure 3 This is a cross-sectional view of the turret and clamping assembly of an integrated roller cam swing head according to this utility model. Figure 4 This is a top view of the swivel head housing of an integrated roller cam swivel head according to this utility model; Figure 5 This is a side view of the swivel head of an integrated roller cam swivel head according to the present invention.

[0014] In the diagram: 1. Motor body; 2. Pinion; 3. Transition gear; 4. Gear fixed shaft; 5. Large gear; 6. Camshaft; 7. Needle roller bearing; 8. Turret; 10. Clamp; 11. Bearing housing; 12. Bearing; 13. Flange; 14. Positioning ring; 20. Housing. Detailed Implementation

[0015] 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.

[0016] Example: refer to Figures 1 to 5 An integrated roller cam swing head includes a housing 20, a motor body 1 is fixedly installed on one side inside the housing 20, and a pinion 2 is fixedly connected to the output end of the motor body 1. A gear fixing shaft 4 is fixedly inserted through the housing 20, and a transition gear 3 is rotatably sleeved on the gear fixing shaft 4. The transition gear 3 meshes with the pinion 2. A camshaft 6 is rotatably mounted on the housing 20, and a large gear 5 is fixedly connected to the camshaft 6. The large gear 5 meshes with the transition gear 3. The housing 20 is rotatably mounted with a turret 8 via a bearing 12, and the camshaft 6 is driven by the turret 8 via rollers 7; A flange 13 is fixedly connected to the turret 8; A clamping seat 11 is fixedly installed on the box 20, and a clamp 10 is fixedly connected to the clamping seat 11. A brake shaft 9 is fixedly connected to the turret 8, and a clamp 10 engages the brake shaft 9 to achieve braking. During the power input phase, after the motor body 1, which is fixed inside the housing 20, starts, its output end drives the fixedly connected pinion 2 to rotate synchronously, transmitting the rotational power of the motor body 1 to the transmission system. During the transmission stage, the pinion 2 drives the transition gear 3, which is mounted on the gear fixed shaft 4, to rotate through the meshing relationship. The gear fixed shaft 4 is fixedly mounted on the housing 20, providing stable support for the transition gear 3 and ensuring no deviation during meshing transmission. Subsequently, the transition gear 3 further meshes and drives the large gear 5 fixed on the camshaft 6. Through the speed reduction and torque amplification effect of the gear set, the power is smoothly transmitted to the camshaft 6, and the camshaft 6 achieves stable rotation by relying on the housing 20. During the output stage, the camshaft 6 forms a transmission connection with the turret 8 through the roller 7: the cam profile of the camshaft 6 drives the roller 7 to move, which in turn drives the turret 8 to rotate around the bearing 12. The bearing 12 is fixed on the housing 20 to reduce the rotational friction of the turret 8. When the turret 8 rotates, the flange 13 fixed on its surface rotates synchronously. Finally, the power is output to the external actuator through the flange 13 to complete the rotation action of the oscillating head. During the braking control phase, when it is necessary to stop the action, the clamp seat 11 fixed on the housing 20 drives the clamp 10 to move. The jaws of the clamp 10 engage with the brake shaft 9 fixed on the turret 8, and the friction force restricts the rotation of the brake shaft 9, thereby stopping the rotation of the turret 8, realizing the braking of the entire mechanism and ensuring rapid start and stop of the action.

[0017] Example 1: Please refer to Figure 1 - Figure 5 A shock-absorbing pad is provided between the motor body 1 and the housing 20, and the shock-absorbing pad is sleeved on the outside of the fixing bolt of the motor body 1. Both ends of the gear fixing shaft 4 are fitted with bushings, which are fixedly embedded in the mounting holes of the housing 20, and the bushings and the gear fixing shaft 4 are interference fit. A positioning ring 14 is fixedly sleeved on the camshaft 6. The positioning ring 14 is located between the large gear 5 and the inner wall of the housing 20, and the outer diameter of the positioning ring 14 is larger than the diameter of the hole at the mating point between the camshaft 6 and the housing 20. In CNC machine tool applications, to optimize the performance of the integrated roller cam swing head, this embodiment includes a shock-absorbing pad between the motor body 1 and the housing 20. The pad is fitted over the outside of the motor fixing bolts. This pad absorbs the vibration generated by the motor operation, preventing the vibration from being transmitted to the housing 20 and subsequent transmission components, thus improving transmission stability and ensuring machining accuracy. The gear fixing shaft 4 has bushings at both ends, which are fixedly embedded in the mounting holes of the housing 20 and have an interference fit with the gear fixing shaft 4. The bushings enhance the connection strength between the gear fixing shaft 4 and the housing 20, ensuring the stable position of the gear fixing shaft 4 during transmission, and enabling the intermediate gear 3 to mesh and transmit power. More reliable and meeting the high-frequency, high-precision machining requirements of CNC machine tools, the camshaft 6 is fixed with a positioning ring 14, which is located between the large gear 5 and the inner wall of the housing 20. The outer diameter of the positioning ring 14 is larger than the hole diameter at the mating point between the camshaft 6 and the housing 20. The positioning ring 14 can restrict the axial displacement of the large gear 5, ensure stable gear meshing clearance, improve transmission accuracy and reliability, and help control the accuracy of CNC machine tools when machining complex processes such as curved surfaces. This structural optimization allows the swivel head to more stably achieve tool flipping and linkage machining in CNC machine tool machining, reduce machining errors caused by component vibration and displacement, and improve machining efficiency and finished product accuracy.

[0018] Example 2: Please refer to Figure 1 - Figure 5 The roller 7 is mounted on the inner wall of the turret 8 by rotating through the roller shaft. The roller shaft and the turret 8 are tightly fitted, and the outer circumferential surface of the roller 7 is provided with a wear-resistant coating. The clamp 10 includes two symmetrically arranged jaws. One end of each jaw is rotatably connected to the clamp base 11, and the other end is provided with an arc-shaped engagement surface, which is adapted to the outer peripheral surface of the brake shaft 9. The flange 13 and the turret 8 are provided with a positioning boss on the connecting surface. The turret 8 is provided with a positioning groove at the corresponding position. The positioning boss is embedded in the positioning groove. The flange 13 and the turret 8 are fixedly connected by bolts that are evenly distributed around the circumference. In this embodiment, the roller 7 is rotatably mounted on the inner wall of the turret 8 via a roller shaft. The roller shaft and the turret 8 are tightly fitted together, and the outer circumference of the roller 7 is coated with a wear-resistant coating. The tight fit ensures the stability of the roller shaft on the turret 8, and the wear-resistant coating extends the service life of the roller 7, reduces transmission errors caused by roller wear, and makes the power transmission of the turret 8 more precise, meeting the long-term, high-frequency processing requirements of CNC machine tools. The clamp 10 consists of two symmetrical jaws, one end of which is rotatably connected to the clamp seat 11, and the other end has an arc-shaped engagement surface that is adapted to the outer circumference of the brake shaft 9. The arc-shaped engagement surface increases the contact area with the brake shaft 9, improving engagement stability and braking performance. The improved power allows for faster and more reliable braking of the turret 8, ensuring precise stopping during CNC machine tool machining process switching. A positioning boss is set on the connecting surface between the flange 13 and the turret 8, and a corresponding positioning groove is opened on the turret 8. The boss is embedded in the groove, and the two are fixed by circumferentially distributed bolts. The positioning boss and the groove cooperate to achieve rapid and precise positioning of the flange 13. The bolt connection ensures the connection strength and makes the power output of the flange 13 stable. In CNC machine tool machining, it can more reliably drive the tool to rotate and perform linked machining of curved surfaces, improving machining efficiency and accuracy. Through these improvements, the swivel head is adapted to the complex machining scenarios of CNC machine tools, enhancing overall performance and reliability.

[0019] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0020] Although embodiments of the present invention have been shown and described, 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 one-piece roller cam swing head, characterized in that, Includes a housing (20), and a motor body (1) is fixedly installed on one side inside the housing (20). A small gear (2) is fixedly connected to the output end of the motor body (1). A gear fixing shaft (4) is fixedly inserted through the housing (20), and a transition gear (3) is rotatably sleeved on the gear fixing shaft (4). The transition gear (3) meshes with the pinion (2). A camshaft (6) is rotatably mounted on the housing (20), and a large gear (5) is fixedly connected to the camshaft (6). The large gear (5) meshes with the transition gear (3). The housing (20) is rotatably mounted with a turret (8) via a bearing (12), and the camshaft (6) is driven by the turret (8) via rollers (7); A flange (13) is fixedly connected to the turret (8); A clamp seat (11) is fixedly provided on the box (20), and a clamp (10) is fixedly connected to the clamp seat (11). A brake shaft (9) is fixedly connected to the turret (8), and the clamp (10) engages the brake shaft (9) to achieve braking.

2. The integrated roller cam swing head according to claim 1, characterized in that: A shock-absorbing pad is provided between the motor body (1) and the housing (20), and the shock-absorbing pad is sleeved on the outside of the fixing bolt of the motor body (1).

3. The integrated roller cam swing head according to claim 1, characterized in that: Both ends of the gear fixing shaft (4) are fitted with bushings, which are fixedly embedded in the mounting holes of the housing (20), and the bushings and the gear fixing shaft (4) are interference fit.

4. The integrated roller cam swing head according to claim 1, characterized in that: A positioning ring (14) is fixedly sleeved on the camshaft (6). The positioning ring (14) is located between the large gear (5) and the inner wall of the housing (20), and the outer diameter of the positioning ring (14) is larger than the diameter of the hole at the mating point between the camshaft (6) and the housing (20).

5. The integrated roller cam swing head according to claim 1, characterized in that: The roller (7) is rotatably mounted on the inner wall of the turret (8) via a roller shaft. The roller shaft and the turret (8) are tightly fitted together, and the outer circumferential surface of the roller (7) is provided with a wear-resistant coating.

6. The integrated roller cam swing head according to claim 1, characterized in that: The clamp (10) includes two symmetrically arranged jaws. One end of each jaw is rotatably connected to the clamp seat (11), and the other end is provided with an arc-shaped engagement surface, which is adapted to the outer peripheral surface of the brake shaft (9).

7. The integrated roller cam swing head according to claim 1, characterized in that: The flange (13) and the turret (8) are provided with a positioning boss on their connecting surfaces. The turret (8) is provided with a positioning groove at the corresponding position. The positioning boss is embedded in the positioning groove. The flange (13) and the turret (8) are fixedly connected by bolts that are evenly distributed around the circumference.

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