Rotary chuck linking mechanism

Abstract

The utility model relates to a rotary chuck linking mechanism which comprises a machine body, a rotary table is rotationally arranged on the machine body, a clamping mechanism is installed on the rotary table, the clamping mechanism comprises a chuck base, a chuck and a plurality of clamping jaws, the chuck base is installed on the rotary table, the chuck is installed on the chuck base, and the clamping jaws are arranged on the chuck base. The multiple clamping jaws are evenly arranged in the circumferential direction of the chuck in a sliding mode and synchronously slide in the direction close to or away from the center of the chuck. The chuck replacement device has the effect of facilitating chuck replacement.

Description

Technical Field

[0001] This application relates to the field of machine tool clamping devices, and more particularly to a rotary chuck linking mechanism. Background Technology

[0002] A chuck, also known as a rotary chuck, is a mechanical device used on machine tools to clamp workpieces. It is a machine tool accessory that uses the radial movement of movable jaws evenly distributed on the chuck body to clamp and position the workpiece. After the workpiece is clamped by the jaws, the chuck is driven to rotate, thus rotating the workpiece within the machine tool. The workpiece is then machined using a cutting tool.

[0003] However, existing chucks are mounted on the machine tool head and directly connected to the motor. When the chuck is damaged or its size does not match the workpiece, it is usually necessary to disassemble the machine head to remove and replace the chuck, which is quite troublesome. Utility Model Content

[0004] To facilitate chuck replacement, this application provides a rotary chuck linking mechanism.

[0005] The rotary chuck linking mechanism provided in this application adopts the following technical solution:

[0006] A rotary chuck linking mechanism includes a body, a turntable rotatably mounted on the body, and a clamping mechanism mounted on the turntable. The clamping mechanism includes a chuck base, a chuck, and jaws. The chuck base is mounted on the turntable, the chuck is mounted on the chuck base, and there are several jaws that are evenly slidably disposed around the chuck, and the jaws slide synchronously toward or away from the center of the chuck.

[0007] By adopting the above technical solution, the chuck can be installed on the turntable by setting a chuck base on the turntable. When the chuck is damaged or needs to be replaced for other reasons, the machine head can be disassembled for replacement, which facilitates the replacement of the chuck.

[0008] Optionally, the machine body has an inspection port on the side away from the turntable, the inspection port is located directly behind the turntable, and a rear cover can be detachably installed on the inspection port.

[0009] By adopting the above technical solution, the opening of the inspection port facilitates the inspection and maintenance of the machine's internal components.

[0010] Optionally, the turntable has a through hole at its center, which extends through the rear cover. A drive rod is installed inside the chuck, with one end of the drive rod connected to all the jaws to drive them to slide synchronously. The drive rod extends out of the chuck, passes through the through hole, and exits the machine body from the rear cover.

[0011] By adopting the above technical solution, the through hole facilitates the passage of the drive rod of the drive claw, thereby facilitating the connection of the drive mechanism.

[0012] Optionally, a hydraulic assembly is installed on the rear cover. The hydraulic assembly includes a housing and a hydraulic rod. The housing is installed on the rear cover, and the hydraulic rod is slidably disposed inside the housing. One end of the hydraulic rod extends out of the housing and is coaxially connected to a drive rod.

[0013] By adopting the above technical solution, the chuck is driven by a hydraulic component, eliminating the need for manual adjustment of the chuck and improving the accuracy of chuck adjustment.

[0014] Optionally, a connecting plate is installed on the rear cover, and the hydraulic component is installed on the connecting plate and then on the rear cover.

[0015] By adopting the above technical solution, the connection plate facilitates the installation and fixing of hydraulic components.

[0016] Optionally, a piston groove is provided inside the housing, a piston block is fixed on the hydraulic rod, the piston block is rotatably slidably disposed in the piston groove, a first oil injection pipe and a second oil injection pipe are provided on the housing, a first flow channel and a second flow channel are opened inside the housing, the first flow channel connects the first oil injection pipe and one side of the piston groove along the length direction, and the second flow channel connects the second oil injection pipe and the other side of the piston groove.

[0017] By adopting the above technical solution, hydraulic pressure is delivered to both ends of the piston block through the first and second flow channels, thereby realizing the sliding of the hydraulic rod. The rotating piston block enables the hydraulic rod to rotate synchronously when the chuck rotates.

[0018] Optionally, a positioning ring is fixed on the connecting plate. The positioning ring is inserted into the through hole on the rear cover and abuts against the side wall of the through hole on the rear cover. A fixing ring is provided on the chuck base. The fixing ring is inserted into the through hole on the turntable and abuts against the side wall of the through hole on the turntable.

[0019] By adopting the above technical solution, the positioning ring and the fixing ring can position the connecting plate and the chuck base, reducing the installation error of the connecting plate and the chuck base.

[0020] Optionally, a driving mechanism is provided between the end of the drive rod inserted into the chuck and the jaws. The driving mechanism includes a drive ring and a drive block. The drive ring is mounted on the drive rod and has a plurality of drive grooves. The number of drive grooves is the same as the number of jaws. A wedge-shaped surface is formed at the bottom of the drive groove. There are a plurality of drive blocks, which are respectively fixed on a plurality of jaws and placed in a plurality of drive grooves. The drive blocks are wedge-shaped blocks, and the inclined surface of the drive blocks abuts against the wedge-shaped surface at the bottom of the drive groove.

[0021] By adopting the above technical solution, the sliding of the chuck is achieved by driving the drive block through the drive ring.

[0022] Optionally, the drive ring includes a mounting ring and a control ring, the mounting ring is mounted on the drive rod, the control ring is detachably mounted on the mounting ring, and the drive groove is formed on the control ring.

[0023] By adopting the above technical solution, the detachable control ring can be easily replaced with drive rings of different wedge chamfer angles as required by the drive requirements.

[0024] Optionally, a top block is installed on the drive ring, and the top block is slidably disposed at the center of the chuck. The drive rod slides to drive the top block to extend out of the chuck or be stored in the chuck.

[0025] By adopting the above technical solution, the top block can push the workpiece out when the jaws open, making it easier for the workpiece to be removed from the chuck.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting a chuck base on the turntable, the chuck can be mounted on the turntable. The workpiece is clamped by the jaws on the chuck, which improves the fixation effect of the workpiece. At the same time, different types and sizes of chucks can be selected according to different types of workpieces, which improves the applicability of the turntable.

[0028] 2. The through-hole facilitates the passage of the drive rod of the chuck, thus simplifying the connection to the drive mechanism. The chuck is driven by a hydraulic assembly, eliminating the need for manual adjustment and improving the accuracy of chuck adjustment.

[0029] 3. Hydraulic pressure is supplied to both ends of the piston block through the first and second flow channels, thereby enabling the hydraulic rod to slide. The rotating piston block allows the hydraulic rod to rotate synchronously when the chuck rotates.

[0030] 4. The sliding of the chuck is achieved by the drive ring driving the drive block;

[0031] 5. The top block is designed to push the workpiece out when the jaws open, making it easier for the workpiece to detach from the chuck. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0033] Figure 2 This is an exploded view of the overall structure of an embodiment of this application.

[0034] Figure 3 This is a schematic diagram of the connection structure of the hydraulic components and drive mechanism in an embodiment of this application.

[0035] Figure 4 This is a schematic diagram of the connection mechanism of this application.

[0036] Figure 5 yes Figure 3 Enlarged view of section A

[0037] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. Turntable; 3. Clamping mechanism; 31. Chuck base; 32. Chuck; 33. Chuck claw; 4. Inspection port; 5. Rear cover; 6. Through hole; 7. Drive rod; 8. Hydraulic assembly; 81. Housing; 82. Hydraulic rod; 9. Connecting plate; 10. Piston groove; 11. Piston block; 12. First oil injection pipe; 13. Second oil injection pipe; 14. First flow channel; 15. Second flow channel; 16. Positioning ring; 17. Fixing ring; 18. Drive mechanism; 181. Drive ring; 1811. Mounting ring; 1812. Control ring; 182. Drive block; 19. Drive groove; 20. Top block. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0039] First, it should be noted that in the description of this application, the use of directional terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for descriptive purposes and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of numerical quantifiers such as "first," "second," and "third" is for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, interference fits, transition fits, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] This application discloses a rotary chuck linking mechanism, referring to... Figure 1 and Figure 2The system includes a body 1, which in this embodiment is the body 1 of an existing cam turntable 2. A turntable 2 is rotatably mounted on the body 1, and a clamping mechanism 3 is installed on the turntable 2. The clamping mechanism 3 includes a chuck base 31 mounted on the turntable 2, a chuck 32 mounted on the chuck base 31, and several jaws 33 that are evenly slidably disposed around the chuck 32. The chuck base 31 is detachably mounted on the turntable 2 by bolts, and the chuck 32 is mounted on the chuck base 31 by bolts. In this embodiment, three jaws 33 are provided, and the jaws 33 slide synchronously toward or away from the center of the chuck 32. By setting the chuck base 31 on the turntable 2, the chuck 32 can be mounted on the turntable 2. The workpiece is clamped by the jaws 33 on the chuck 32, which improves the fixation effect of the workpiece. At the same time, different types and sizes of chucks 32 can be selected according to different types of workpieces, thus improving the applicability of the turntable 2.

[0041] Reference Figure 1 and Figure 2 The machine body 1 has an inspection port 4 on the side opposite to the turntable 2. The inspection port 4 is located directly behind the turntable 2. A rear cover 5 is detachably installed on the inspection port 4. The inspection port 4 facilitates the inspection of the inside of the machine body 1. A through hole 6 is opened in the center of the turntable 2. The through hole 6 passes through the rear cover 5. A drive rod 7 is installed in the chuck 32. One end of the drive rod 7 is connected to all the jaws 33, driving all the jaws 33 to slide synchronously. The drive rod 7 extends out of the chuck 32, passes through the through hole 6, and exits the machine body 1 from the rear cover 5. The opening of the through hole 6 facilitates the passage of the drive rod 7 that drives the jaws 33, thereby facilitating the connection of the drive mechanism 18.

[0042] Reference Figure 1 and Figure 2 A hydraulic assembly 8 is installed on the rear cover 5. The hydraulic assembly 8 includes a housing 81 and a hydraulic rod 82. The housing 81 is installed on the rear cover 5, and the hydraulic rod 82 is slidably disposed inside the housing 81. One end of the hydraulic rod 82 extends out of the housing 81 and is coaxially connected to the drive rod 7. The drive rod 7 is inserted into the hydraulic rod 82 and screwed to the hydraulic rod 82. The threads of the drive rod 7 and the hydraulic rod 82 are opposite to the rotation direction of the turntable 2. The hydraulic assembly 8 drives the chuck 33, eliminating the need for manual adjustment of the chuck 33 and improving the accuracy of the chuck 33 adjustment. A connecting plate 9 is installed on the rear cover 5. The hydraulic assembly 8 is installed on the connecting plate 9 and is mounted on the rear cover 5 through the connecting plate 9. The setting of the connecting plate 9 facilitates the installation and fixation of the hydraulic assembly 8.

[0043] Reference Figure 2 and Figure 3A piston groove 10 is provided inside the housing 81, and a piston block 11 is fixed on the hydraulic rod 82. The piston block 11 is rotatably slidably disposed in the piston groove 10. A first oil injection pipe 12 and a second oil injection pipe 13 are provided on the housing 81. A first flow channel 14 and a second flow channel 15 are opened inside the housing 81. The first flow channel 14 connects the first oil injection pipe 12 and one side of the piston groove 10 along its length, and the second flow channel 15 connects the second oil injection pipe 13 and the other side of the piston groove 10. Hydraulic pressure is delivered to both ends of the piston block 11 through the first flow channel 14 and the second flow channel 15, thereby realizing the sliding of the hydraulic rod 82. The rotatably disposed piston block 11 enables the hydraulic rod 82 to rotate synchronously when the chuck 32 rotates.

[0044] Reference Figure 1 and Figure 2 A positioning ring 16 is fixed on the connecting plate 9. The positioning ring 16 is inserted into the through hole 6 on the rear cover 5 and abuts against the side wall of the through hole 6 on the rear cover 5. A fixing ring 17 is provided on the chuck base 31. The fixing ring 17 is inserted into the through hole 6 on the turntable 2 and abuts against the side wall of the through hole 6 on the turntable 2. The positioning ring 16 and the fixing ring 17 can position the connecting plate 9 and the chuck base 31, reducing the installation error of the connecting plate 9 and the chuck base 31.

[0045] Reference Figure 3 , Figure 4 and Figure 5A drive mechanism 18 is provided between one end of the drive rod 7 inserted into the chuck 32 and the jaw 33. The drive mechanism 18 includes a drive ring 181 and drive blocks 182. The drive ring 181 is mounted on the drive rod 7 and has several drive grooves 19. The number of drive grooves 19 is the same as the number of jaws 33. In this embodiment, there are three drive grooves 19. The bottom of the drive groove 19 has a wedge-shaped surface. There are several drive blocks 182, which are respectively fixed on several jaws 33. Blocks 182 are placed in several drive slots 19. In this embodiment, three drive blocks 182 are provided. Each drive block 182 is a wedge-shaped block, and its inclined surface abuts against the wedge-shaped surface at the bottom of the drive slot 19. In this embodiment, the drive ring 181 is driven to slide toward the drive block 182 by the drive rod 7. The drive block 182 drives the pawl 33 to slide away from the center of the pawl 33. When the drive rod 7 drives the drive ring 181 to slide away from the drive block 182, the drive rod 7 returns to its original position under the elastic force of the spring. The spring is located inside the chuck 32, connecting the chuck 32 and the jaws 33. A spring with strong elasticity is selected. The pressure provided by the hydraulic assembly 8 drives the drive rod 7 to slowly slide, thereby causing the jaws 33 to slowly clamp the workpiece, preventing excessive return force from damaging the workpiece. The drive ring 181 includes a mounting ring 1811 and a control ring 1812. The mounting ring 1811 is mounted on the drive rod 7, and the control ring 1812 is detachably mounted on the mounting ring 1811. A drive groove 19 is formed on the control ring 1812. A top block 20 is installed on 181. The top block 20 is slidably positioned at the center of the chuck 32. The drive rod 7 slides to drive the top block 20 to extend out of the chuck 32 or be stored inside the chuck 32. The top block 20 can push the workpiece out when the jaws 33 are open, making it easy for the workpiece to detach from the chuck 32. In this embodiment, a press switch or contact sensor is provided on the top block 20. When the workpiece abuts against the top block 20, the press switch or contact sensor connects to the switch of the hydraulic component 8, causing the drive rod 7 to gradually slide away from the jaws 33.

[0046] The implementation principle of this application embodiment is as follows: The drive rod 7, drive mechanism 18 and chuck 33 are installed on the chuck 32 and the chuck 32 is installed on the chuck base 31. Then the chuck base 31 is installed on the turntable 2. At the same time, the hydraulic component 8 is installed on the connecting plate 9 and the connecting plate 9 is installed on the rear cover 5. After connecting the drive rod 7 and the hydraulic rod 82 of the hydraulic component 8, the rear cover 5 is installed on the housing 81 to complete the assembly of the four-sided cam turntable 2. The workpiece to be processed is installed on the chuck 32. When the workpiece is installed, the hydraulic component 8 drives the chuck 33 to slowly clamp the workpiece by abutting the top block 20. After the workpiece is fully clamped, the workpiece is processed by rotating the turntable 2. After the workpiece is processed, the chuck 33 is driven away from the workpiece by the hydraulic component 8 to release the workpiece. At the same time, the top block 20 pushes the workpiece out, completing the processing of the workpiece.

[0047] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A rotary chuck linking mechanism, comprising a body (1), wherein a turntable (2) is rotatably disposed on the body (1), characterized in that: The turntable (2) is equipped with a clamping mechanism (3), which includes a chuck base (31), a chuck (32) and jaws (33). The chuck base (31) is mounted on the turntable (2), the chuck (32) is mounted on the chuck base (31), and there are several jaws (33). The several jaws (33) are evenly slidably arranged around the chuck (32), and the jaws (33) slide synchronously toward or away from the center of the chuck (32).

2. The rotary chuck linking mechanism according to claim 1, characterized in that: The machine body (1) has an inspection port (4) on the side away from the turntable (2). The inspection port (4) is located directly behind the turntable (2). A rear cover (5) is detachably installed on the inspection port (4).

3. The rotary chuck linking mechanism according to claim 2, characterized in that: The turntable (2) has a through hole (6) in the center, which passes through the rear cover (5). A drive rod (7) is provided in the chuck (32). One end of the drive rod (7) is connected to all the jaws (33) to drive all the jaws (33) to slide synchronously. The drive rod (7) extends out of the chuck (32), passes through the through hole (6), and exits from the rear cover (5) through the machine body (1).

4. The rotary chuck linking mechanism according to claim 3, characterized in that: A hydraulic assembly (8) is installed on the rear cover (5). The hydraulic assembly (8) includes a housing (81) and a hydraulic rod (82). The housing (81) is installed on the rear cover (5). The hydraulic rod (82) is slidably disposed inside the housing (81). One end of the hydraulic rod (82) extends out of the housing (81) and is coaxially connected to the drive rod (7).

5. A rotary chuck linking mechanism according to claim 4, characterized in that: A connecting plate (9) is installed on the rear cover (5), and the hydraulic component (8) is installed on the connecting plate (9) and then installed on the rear cover (5) via the connecting plate (9).

6. A rotary chuck linking mechanism according to claim 5, characterized in that: A piston groove (10) is provided inside the housing (81), and a piston block (11) is fixed on the hydraulic rod (82). The piston block (11) is rotatably slidably disposed in the piston groove (10). A first oil injection pipe (12) and a second oil injection pipe (13) are provided on the housing (81). A first flow channel (14) and a second flow channel (15) are opened inside the housing (81). The first flow channel (14) connects the first oil injection pipe (12) and one side of the piston groove (10) along the length direction. The second flow channel (15) connects the second oil injection pipe (13) and the other side of the piston groove (10).

7. A rotary chuck linking mechanism according to claim 6, characterized in that: A positioning ring (16) is fixed on the connecting plate (9). The positioning ring (16) is inserted into the through hole (6) on the rear cover (5) and abuts against the side wall of the through hole (6) on the rear cover (5). A fixing ring (17) is provided on the chuck base (31). The fixing ring (17) is inserted into the through hole (6) on the turntable (2) and abuts against the side wall of the through hole (6) on the turntable (2).

8. A rotary chuck linking mechanism according to claim 7, characterized in that: A driving mechanism (18) is provided between the end of the drive rod (7) inserted into the chuck (32) and the jaw (33). The driving mechanism (18) includes a drive ring (181) and a drive block (182). The drive ring (181) is installed on the drive rod (7). The drive ring (181) has several drive grooves (19). The number of drive grooves (19) is the same as the number of jaws (33). The bottom of the drive groove (19) has a wedge-shaped surface. There are several drive blocks (182). Several drive blocks (182) are fixed on several jaws (33). Several drive blocks (182) are placed in several drive grooves (19). The drive block (182) is a wedge-shaped block. The inclined surface of the drive block (182) abuts against the wedge-shaped surface at the bottom of the drive groove (19).

9. A rotary chuck linking mechanism according to claim 8, characterized in that: The drive ring (181) includes a mounting ring (1811) and a control ring (1812). The mounting ring (1811) is mounted on the drive rod (7). The control ring (1812) is detachably mounted on the mounting ring (1811). The drive groove (19) is formed on the control ring (1812).

10. A rotary chuck linking mechanism according to claim 9, characterized in that: A top block (20) is installed on the drive ring (181). The top block (20) is slidably disposed at the center of the chuck (32). The drive rod (7) slides to drive the top block (20) to extend out of the chuck (32) or be stored in the chuck (32).

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