A full stroke chuck device

Abstract

The utility model discloses a full stroke chuck device, including front disc and rear disc, be provided with hollow connecting piece between front disc and rear disc, the front disc surface respectively symmetry is provided with two groups of jaw assembly, and each group of jaw assembly includes two symmetrical jaw unit, the jaw unit includes guide rail and the jaw base of sliding connection with guide rail, the bottom of jaw base is provided with the horizontal groove perpendicular to guide rail, be provided with the arc slot of cooperation with horizontal groove on the front disc still, including swing bar, swing bar one end is provided with gyro wheel, and gyro wheel is located in arc slot and horizontal groove simultaneously, front disc and rear disc this set up are used for drive gyro wheel along arc slot movement's drive component, when gyro wheel along arc slot movement movement, gyro wheel synchronous push jaw base and do horizontal motion, in the structure, through the cooperation of horizontal groove, annular groove and swing bar, realize the accurate horizontal movement of jaw base on guide rail, and the overall appearance of this structure is small, saves the space.

Description

Technical Field

[0001] This utility model relates to the field of chucks for laser tube cutting machines, and in particular to a full-stroke chuck device. Background Technology

[0002] As laser tube cutting machine chucks have evolved, customer demand for full-stroke chucks has gradually increased. These chucks allow for full-stroke clamping, eliminating the need to change jaw positions when cutting the largest and smallest tube sizes, saving time. This significantly improves efficiency for customers cutting a variety of tubes in small quantities. Currently available full-stroke chucks include economical cylinder-driven direct-push chucks, dual-gear rack and pinion chucks, and nested-slider chucks. The first type, the direct-push chuck, has a simple structure, but its internal components are not sealed, resulting in poor dust protection, low jaw clamping accuracy, and weak guide shaft rigidity. Dual-gear driven chucks are relatively large, and sealing the front of the slider is difficult, allowing dust to easily enter and fall onto the pinion, affecting transmission accuracy. Nested-slider chucks have half the clamping force of single-gear driven chucks, but can withstand smaller loads. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a full-stroke chuck device with a small overall size and space saving.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a full-stroke chuck device, including a front disc and a rear disc, with a hollow connecting member between the front disc and the rear disc. Two sets of gripper assemblies are symmetrically arranged on the surface of the front disc, each set of gripper assemblies including two symmetrically arranged gripper units. Each gripper unit includes a guide rail and a gripper base slidably connected to the guide rail. The bottom of the gripper base is provided with a transverse groove perpendicular to the guide rail. The front disc is provided with an arc-shaped groove that cooperates with the transverse groove. It also includes a rocker arm, with a roller at one end of the rocker arm. The roller is located in both the arc-shaped groove and the transverse groove. A driving assembly for driving the roller to move along the arc-shaped groove is provided between the front disc and the rear disc. When the roller moves along the arc-shaped groove, the roller synchronously pushes the gripper base to move horizontally.

[0005] Furthermore, the drive assembly includes a gear disk, which is sleeved on and rotatably connected to the hollow connector. It also includes a gear disk drive mechanism for driving the gear disk to rotate. A gear meshing with the gear disk is provided on one side of the gear disk. A drive rod is connected to the middle of the gear. The two ends of the drive rod are rotatably connected to the front disk and the rear disk, respectively. The other end of the rocker arm is fixedly connected to the drive rod.

[0006] Furthermore, the gear drive mechanism includes a cylinder and a cylinder shaft. The two ends of the cylinder shaft are connected to the front and rear discs, respectively. A cylinder tailstock is provided at the tail end of the cylinder, and the cylinder tailstock is rotatably connected to the cylinder shaft. A cylinder connector is provided at the drive end of the cylinder, and a cantilever pin is also included. One end of the cantilever pin is rotatably connected to the gear, and the other end of the cantilever pin is rotatably connected to the cylinder connector.

[0007] Furthermore, the driving components include two sets, each driving a symmetrically arranged gripper assembly to move relative to or towards each other.

[0008] Furthermore, at least one set of gripper assemblies is a zero-tailing gripper assembly.

[0009] Furthermore, a slewing support bearing and a drive gear disk connected to the slewing support bearing are provided on the side of the rear disk away from the front disk.

[0010] The beneficial effects of this utility model are:

[0011] 1. In this structure, the precise horizontal movement of the gripper base on the guide rail is achieved through the combined action of the horizontal groove, the annular groove and the swing rod. The overall structure is small and saves space.

[0012] 2. In this structure, the horizontal movement of the gripper can be driven by the short stroke of the cylinder, making the overall control simple and convenient.

[0013] 3. The overall drive in this structure is located between the front and rear discs, which allows the overall drive to be in a well-sealed environment, effectively preventing dust and other impurities from entering and affecting the transmission accuracy, thus improving the reliability and service life of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the full-stroke chuck device according to an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the internal structure of the full-stroke chuck device according to an embodiment of this application.

[0016] Figure 3 This is a schematic diagram of the rocker arm drive unit of the full-stroke chuck device according to an embodiment of this application.

[0017] Figure 4 This is a schematic diagram of another part of the rocker arm drive section of the full-stroke chuck device according to an embodiment of this application.

[0018] The components in the diagram are labeled as follows: front disc 1, rear disc 2, gripper unit 3, gripper base 4, horizontal groove 5, arc groove 6, rocker arm 7, roller 8, gear disc 9, gear 10, drive rod 11, cylinder 12, cylinder shaft 13, cantilever pin 14, cylinder connector 15, slewing support bearing 16, and drive gear disc 17. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown in the figure, an embodiment of this application discloses a full-stroke chuck device, including a front disc 1 and a rear disc 2. A hollow connecting member is provided between the front disc 1 and the rear disc 2. Two sets of gripper assemblies are symmetrically arranged on the surface of the front disc 1. Each set of gripper assemblies includes two symmetrically arranged gripper units 3. The gripper unit 3 includes a guide rail and a gripper base 4 slidably connected to the guide rail. The bottom of the gripper base 4 is provided with a transverse groove 5 perpendicular to the guide rail. The front disc 1 is provided with an arc-shaped groove 6 that cooperates with the transverse groove 5. It also includes a rocker arm 7. One end of the rocker arm 7 is provided with a roller 8. The roller 8 is located in both the arc-shaped groove 6 and the transverse groove 5. A driving assembly for driving the roller 8 to move along the arc-shaped groove 6 is provided between the front disc 1 and the rear disc 2. When the roller 8 moves along the arc-shaped groove 6, the roller 8 synchronously pushes the gripper base 4 to move horizontally.

[0021] In actual operation, the drive component drives the swing arm 7 to swing, so that the roller 8 at one end of the swing arm 7, under the joint guidance of the arc groove 6 and the horizontal groove 5, converts the rotational motion into the linear displacement of the gripper base 4.

[0022] The dual-groove composite guide structure of this device ensures the smoothness of the opening and closing process of the gripper unit 3. At the same time, the large-range displacement of the gripper can be completed by the short-stroke drive of the cylinder 12, which effectively improves the space utilization and transmission efficiency of the device.

[0023] In this embodiment, the driving assembly includes a gear disk 9, which is sleeved on and rotatably connected to the hollow connector. It also includes a gear disk 9 driving mechanism for driving the gear disk 17 to rotate. A gear 10 meshing with the gear disk 9 is provided on one side of the gear disk 9. A driving rod 11 is connected to the middle of the gear 10. The two ends of the driving rod 11 are rotatably connected to the front disk 1 and the rear disk 2, respectively. The other end of the swing arm 7 is fixedly connected to the driving rod 11.

[0024] Specifically, when the drive mechanism of the gear disk 9 is activated, it drives the gear disk 9 to rotate around the hollow connecting piece. Since the gear disk 9 meshes with the gear 10, the rotation of the gear disk 9 further drives the gear 10 to rotate. The drive rod 11 connected in the middle of the gear 10 rotates accordingly. The two ends of the drive rod 11 are rotatably connected to the front disk 1 and the rear disk 2, respectively. Since one end of the swing rod 7 is fixedly connected to the drive rod 11, the swing rod 7 will swing accordingly when the drive rod 11 rotates. The roller 8 set at the other end of the swing rod 7 moves in the arc groove 6 and the transverse groove 5, thereby converting the swing of the swing rod 7 into the horizontal linear motion of the gripper base 4 on the guide rail, realizing the opening and closing action of the gripper.

[0025] In the above design, the design of structures such as the gear disc 9 and the drive rod 11 not only achieves precise linear motion of the gripper base 4, but also ensures the stability and reliability of the entire transmission process. The meshing design of the gear disc 9 and the gear 10 ensures accurate transmission ratio, reduces errors in the transmission process, and improves the clamping accuracy of the device. At the same time, the rotational connection between the drive rod 11 and the front disc 1 and the rear disc 2 also enhances the overall structural strength of the device, making it less prone to deformation or damage during long-term use.

[0026] In this embodiment, the drive mechanism of the gear disk 9 includes a cylinder 12 and a cylinder shaft 13. The two ends of the cylinder shaft 13 are connected to the front disk 1 and the rear disk 2, respectively. The tail end of the cylinder 12 is provided with a cylinder 12 tail seat, which is rotatably connected to the cylinder shaft 13. The drive end of the cylinder 12 is provided with a cylinder connector 15 and also includes a cantilever pin 14. One end of the cantilever pin 14 is rotatably connected to the gear disk 9, and the other end of the cantilever pin 14 is rotatably connected to the cylinder connector 15.

[0027] Specifically, when cylinder 12 starts, the cylinder connector 15 at its drive end pushes one end of the cantilever pin 14 to move. Since the other end of the cantilever pin 14 is rotatably connected to the gear plate 9, and the tailstock of cylinder 12 is rotatably connected to the front disc 1 and the rear disc 2 through the cylinder shaft 13, the movement of the cantilever pin 14 is converted into the rotational movement of the gear plate 9.

[0028] The above design utilizes the short stroke characteristic of cylinder 12 and achieves effective drive of gear 9 through the lever action of cantilever pin 14.

[0029] In this embodiment, the driving components include two sets, and the two sets of driving components drive the symmetrically arranged gripper components to move relative to each other or towards each other.

[0030] Specifically, when the two sets of drive components work simultaneously, they can independently drive the two sets of gripper assemblies symmetrically arranged on the surface of the front disc 1. When it is necessary to clamp the tube, the two sets of drive components drive the two sets of gripper assemblies to move towards each other, so that the gripper unit 3 gradually approaches and finally clamps the tube; when it is necessary to release the tube, the two sets of drive components drive the two sets of gripper assemblies to move relative to each other, so that the gripper unit 3 gradually moves away from the tube, thereby realizing the rapid clamping and release of the tube.

[0031] Specifically, the above design not only improves the clamping efficiency of the device, but also enhances its flexibility, enabling it to adapt to the clamping needs of tubes of different sizes and shapes.

[0032] In this embodiment, at least one set of gripper assemblies is a zero-tailing gripper assembly.

[0033] Specifically, this structure improves material utilization and reduces production costs through the design of the zero-tailing gripper assembly. It also reduces the number of subsequent tailing processes and time, further enhancing production efficiency.

[0034] In this embodiment, a slewing support bearing 16 and a drive gear 17 connected to the slewing support bearing 16 are provided on the side of the rear disk 2 away from the front disk 1.

[0035] It should be explained that the slewing support bearing 16 is connected to external equipment.

[0036] Specifically, the slewing support bearing 16 provides stable rotational support for the entire full-stroke chuck assembly, ensuring smooth operation during rotation and reducing vibration and deviation caused by rotation. The drive gear 17, connected to the slewing support bearing 16, serves as the power receiving component for the rotation of the assembly. It receives the rotational power transmitted from the external drive mechanism and effectively transmits it to the rear disc 2, thereby driving the entire chuck assembly to rotate.

[0037] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A full-stroke chuck device, characterized in that: The device includes a front disc (1) and a rear disc (2), with a hollow connector between them. Two sets of gripper assemblies are symmetrically arranged on the surface of the front disc (1). Each set of gripper assemblies includes two symmetrically arranged gripper units (3). Each gripper unit (3) includes a guide rail and a gripper base (4) slidably connected to the guide rail. The bottom of the gripper base (4) has a transverse groove (5) perpendicular to the guide rail. The front disc (1)... The upper part is provided with an arc-shaped groove (6) that cooperates with the transverse groove (5), and also includes a rocker arm (7). One end of the rocker arm (7) is provided with a roller (8). The roller (8) is located in both the arc-shaped groove (6) and the transverse groove (5). A drive assembly for driving the roller (8) to move along the arc-shaped groove (6) is provided between the front disc (1) and the rear disc (2). When the roller (8) moves along the arc-shaped groove (6), the roller (8) simultaneously pushes the gripper base (4) to move horizontally.

2. The full-stroke chuck device as described in claim 1, characterized in that: The drive assembly includes a gear disk (9), which is sleeved on a hollow connector and rotatably connected to the hollow connector. It also includes a gear disk (9) drive mechanism for driving the gear disk (17) to rotate. A gear (10) meshing with the gear disk (9) is provided on one side of the gear disk (9). A drive rod (11) is connected to the middle of the gear (10). The two ends of the drive rod (11) are rotatably connected to the front disc (1) and the rear disc (2) respectively. The other end of the swing arm (7) is fixedly connected to the drive rod (11).

3. The full-stroke chuck device as described in claim 2, characterized in that: The drive mechanism of the gear disk (9) includes a cylinder (12) and a cylinder shaft (13). The two ends of the cylinder shaft (13) are connected to the front disk (1) and the rear disk (2) respectively. The tail end of the cylinder (12) is provided with a cylinder (12) tail seat. The cylinder (12) tail seat is rotatably connected to the cylinder shaft (13). The drive end of the cylinder (12) is provided with a cylinder connector (15) and also includes a cantilever pin (14). One end of the cantilever pin (14) is rotatably connected to the gear disk (9), and the other end of the cantilever pin (14) is rotatably connected to the cylinder connector (15).

4. The full-stroke chuck device as described in claim 1, characterized in that: The drive components include two sets, and the two sets of drive components drive the symmetrically arranged gripper components to move relative to each other or towards each other.

5. The full-stroke chuck device as described in claim 1, characterized in that: At least one set of gripper assemblies is a zero-tailing gripper assembly.

6. The full-stroke chuck device as described in claim 4, characterized in that: The rear disk (2) is provided with a slewing support bearing (16) and a drive gear disk (17) connected to the slewing support bearing (16) on the side away from the front disk (1).

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