Rotary chuck linking mechanism

Abstract

The invention 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] The present application relates to the field of machine tool clamping devices, and in particular to a rotary chuck linking mechanism. Background Art

[0002] A chuck, also known as a rotary chuck, is a mechanical device used to clamp a workpiece on a machine tool. It is a machine tool accessory that uses the radial movement of the 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 to achieve the rotation of the workpiece in the machine tool, and then the workpiece is processed by the turning tool.

[0003] However, the existing chuck is installed on the head of the machine tool and directly connected to the motor. When the chuck is damaged or the size of the chuck does not match the workpiece, it is usually necessary to disassemble the head to remove and replace the chuck, which is troublesome. Summary of the invention

[0004] In order to facilitate the replacement of the chuck, the present application provides a rotating chuck linking mechanism.

[0005] The present application provides a rotary chuck link mechanism that adopts the following technical solution:

[0006] A rotating chuck link mechanism comprises a machine body, a turntable is rotatably arranged on the machine body, a clamping mechanism is installed on the turntable, the clamping mechanism comprises a chuck base, a chuck and claws, the chuck base is installed on the turntable, the chuck is installed on the chuck base, there are a plurality of claws, the plurality of claws are evenly slidably arranged in the circumference of the chuck, and the claws 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 arranging a chuck base on the turntable. When the chuck is damaged or needs to be replaced for other reasons, Wu Xue disassembles the machine head for replacement, which facilitates the replacement of the chuck.

[0008] Optionally, an inspection opening is provided on a side of the machine body facing away from the turntable, the inspection opening is located directly behind the turntable, and a rear cover is detachably mounted on the inspection opening.

[0009] By adopting the above technical solution, the opening of the inspection port can facilitate the inspection of the interior of the machine body.

[0010] Optionally, a through hole is opened in the center of the turntable, and the through hole passes through the back cover. A driving rod is arranged in the chuck, and one end of the driving rod is connected to all the claws to drive all the claws to slide synchronously. The driving rod extends out of the chuck, passes through the through hole, and passes through the back cover to exit the body.

[0011] By adopting the above technical solution, the through hole is opened to facilitate the passage of the driving rod of the driving claw, thereby facilitating the connection of the driving mechanism.

[0012] Optionally, a hydraulic assembly is installed on the rear cover, and the hydraulic assembly includes a shell and a hydraulic rod. The shell is installed on the rear cover, and the hydraulic rod is slidably arranged in the shell. One end of the hydraulic rod extends out of the shell and is coaxially connected to the driving rod.

[0013] By adopting the above technical solution, the clamping jaws are driven by the hydraulic component, and there is no need to manually adjust the clamping jaws, thereby improving the accuracy of clamping jaw adjustment.

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

[0015] By adopting the above technical solution, the setting of the connecting plate can facilitate the installation and fixation of the hydraulic component.

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

[0017] By adopting the above technical solution, hydraulic pressure is transmitted to both ends of the piston block through the first flow channel and the second flow channel, thereby realizing the sliding of the hydraulic rod, and the rotatable piston block can make the hydraulic rod rotate synchronously when the chuck rotates.

[0018] Optionally, a positioning ring is fixed on the connecting disk, the positioning ring is inserted into the through hole on the back cover and abuts against the side wall of the through hole on the back cover, and 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 arrangement of the positioning ring and the fixing ring can position the connecting disk and the chuck base, thereby reducing the installation error of the connecting disk and the chuck base.

[0020] Optionally, a driving mechanism is arranged between one end of the driving rod inserted into the chuck and the claws, the driving mechanism comprising a driving ring and a driving block, the driving ring is mounted on the driving rod, a plurality of driving grooves is provided on the driving ring, the number of the driving grooves is the same as the number of the claws, a wedge-shaped surface is provided at the bottom of the driving groove, there are a plurality of driving blocks, the plurality of driving blocks are respectively fixed on a plurality of claws, the plurality of driving blocks are respectively placed in a plurality of driving grooves, the driving blocks are wedge-shaped blocks, the inclined surface of the driving blocks abuts against the wedge-shaped surface at the bottom of the driving groove.

[0021] By adopting the above technical solution, the driving ring drives the driving block to realize the sliding of the claw.

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

[0023] By adopting the above technical solution, the detachable control ring can facilitate the drive ring that requires replacement of a wedge-shaped surface with a different chamfer angle.

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

[0025] By adopting the above technical solution, the setting of the ejector block can eject the workpiece when the jaws are opened, thereby facilitating the detachment of the workpiece from the chuck.

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

[0027] 1. The chuck can be installed on the turntable by setting a chuck base on the turntable, and the workpiece is clamped by the claws on the chuck, which improves the fixing effect of the workpiece. At the same time, chucks of different types and sizes can be selected according to different types of workpieces, which improves the application range of the turntable;

[0028] 2. The opening of the through hole facilitates the passage of the driving rod of the driving claw, thereby facilitating the connection of the driving mechanism. The claw is driven by the hydraulic component, and there is no need to manually adjust the claw, which improves the accuracy of the claw adjustment;

[0029] 3. The hydraulic pressure is delivered to both ends of the piston block through the first flow channel and the second flow channel, thereby realizing the sliding of the hydraulic rod. The rotating piston block can make the hydraulic rod rotate synchronously when the chuck rotates;

[0030] 4. The driving ring drives the driving block to realize the sliding of the claw, and the driving ring drives the driving block to realize the sliding of the claw;

[0031] 5. The setting of the ejector block can eject the workpiece when the jaws are opened, making it easier for the workpiece to be removed from the chuck. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0034] Figure 3 It is a schematic diagram of the connection structure of the hydraulic assembly and the drive mechanism of the embodiment of the present application.

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

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

[0037] Explanation of the reference numerals in the accompanying drawings: 1. Machine body; 2. Turntable; 3. Clamping mechanism; 31. Chuck base; 32. Chuck; 33. Clamping claw; 4. Inspection port; 5. Rear cover; 6. Through hole; 7. Drive rod; 8. Hydraulic assembly; 81. Shell; 82. Hydraulic rod; 9. Connecting plate; 10. Piston groove; 11. Piston block; 12. First oil filling pipe; 13. Second oil filling 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 DESCRIPTION

[0038] The following is combined with Figure 1-5 This application is described in further detail.

[0039] First of all, it should be noted that in the description of this application, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and other directional words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application; in addition, if the terms "first", "second", "third" and other numerical quantifiers appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", and "connected" appear, they should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, a limited connection such as an interference fit, a transition fit, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0040] The present application embodiment discloses a rotary chuck link mechanism, referring to Figure 1 and Figure 2The chuck 32 is fixed to the chuck base 31 and is fixed to the workpiece by the chuck 32.

[0041] Reference Figure 1 and Figure 2 A maintenance opening 4 is provided on the side of the machine body 1 facing away from the turntable 2. The maintenance opening 4 is provided directly behind the turntable 2. A rear cover 5 is detachably mounted on the maintenance opening 4. The opening of the maintenance opening 4 enables convenient maintenance of the interior of the machine body 1. A through hole 6 is provided in the center of the turntable 2. The through hole 6 passes through the rear cover 5. A driving rod 7 is provided in the chuck 32. One end of the driving rod 7 is connected to all the claws 33 to drive all the claws 33 to slide synchronously. The driving rod 7 extends out of the chuck 32, passes through the through hole 6, and passes through the rear cover 5 to exit the machine body 1. The opening of the through hole 6 facilitates the passage of the driving rod 7 of the driving claws 33, thereby facilitating the connection of the driving 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 shell 81 and a hydraulic rod 82. The shell 81 is installed on the rear cover 5. The hydraulic rod 82 is slidably arranged in the shell 81. One end of the hydraulic rod 82 extends out of the shell 81 and is coaxially connected with the driving rod 7. The driving rod 7 is inserted into the hydraulic rod 82 and is screwed to the hydraulic rod 82. The thread direction of the driving rod 7 and the hydraulic rod 82 is opposite to the rotation direction of the turntable 2. The claw 33 is driven by the hydraulic assembly 8, and there is no need to manually adjust the claw 33, which improves the adjustment accuracy of the claw 33; a connecting plate 9 is installed on the rear cover 5, and the hydraulic assembly 8 is installed on the connecting plate 9 and installed on the rear cover 5 through the connecting plate 9. The setting of the connecting plate 9 can facilitate the installation and fixation of the hydraulic assembly 8.

[0043] Reference Figure 2 and Figure 3A piston groove 10 is provided in the shell 81, a piston block 11 is fixed on the hydraulic rod 82, and the piston block 11 is rotatably and slidingly arranged in the piston groove 10. A first oil filling pipe 12 and a second oil filling pipe 13 are provided on the shell 81, and a first flow channel 14 and a second flow channel 15 are opened in the shell 81. The first flow channel 14 connects the first oil filling pipe 12 and one side of the piston groove 10 in the length direction, and the second flow channel 15 connects the second oil filling pipe 13 and the other side of the piston groove 10. Hydraulic pressure is transported to both ends of the piston block 11 through the first flow channel 14 and the second flow channel 15, so as to realize the sliding of the hydraulic rod 82. The rotatably arranged piston block 11 can make the hydraulic rod 82 rotate synchronously when the chuck 32 rotates.

[0044] Reference Figure 1 and Figure 2 A positioning ring 16 is fixed on the connecting disk 9, and 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, and 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 setting of the positioning ring 16 and the fixing ring 17 can position the connecting disk 9 and the chuck base 31, thereby reducing the installation error of the connecting disk 9 and the chuck base 31.

[0045] Reference Figure 3 , Figure 4 and Figure 5A driving mechanism 18 is arranged between the end of the driving rod 7 inserted into the chuck 32 and the claw 33. The driving mechanism 18 includes a driving ring 181 and a driving block 182. The driving ring 181 is installed on the driving rod 7. A plurality of driving grooves 19 are provided on the driving ring 181. The number of driving grooves 19 is the same as the number of claws 33. In this embodiment, three driving grooves 19 are provided. A wedge-shaped surface is provided at the bottom of the driving groove 19. There are a plurality of driving blocks 182. The plurality of driving blocks 182 are respectively fixed on a plurality of claws 33. The blocks 182 are respectively placed in a plurality of driving grooves 19. In this embodiment, three driving blocks 182 are provided. The driving blocks 182 are wedge-shaped blocks. The inclined surface of the driving block 182 abuts against the wedge-shaped surface of the bottom of the driving groove 19. In this embodiment, the driving rod 7 drives the driving ring 181 to slide toward the driving block 182, and the driving block 182 drives the claw 33 to slide away from the center direction of the claw 33. When the driving rod 7 drives the driving ring 181 to slide in the direction away from the driving block 182, the driving rod 7 is restored under the elastic force of the spring. The spring is arranged in the chuck 32 to connect the chuck 32 and the claw 33. The spring is selected to have a strong elastic force. The pressure provided by the hydraulic component 8 drives the driving rod 7 to slide slowly so that the claw 33 slowly clamps the workpiece to avoid the workpiece being damaged by the excessive resetting elastic force; the driving ring 181 includes a mounting ring 1811 and a control ring 1812. The mounting ring 1811 is mounted on the driving rod 7, and the control ring 1812 can be detachably mounted on the mounting ring 1811. The driving groove 19 is provided on the control ring 1812; the driving ring A top block 20 is installed on 181, and the top block 20 is slidably set in the center of the chuck 32. The driving rod 7 slides to drive the top block 20 to extend out of the chuck 32 or be received in the chuck 32. The setting of the top block 20 can push the workpiece out when the claw 33 is opened, so as to facilitate the separation of the workpiece from the chuck 32. In this embodiment, a press switch or a contact sensor is set on the top block 20. When the workpiece abuts against the top block 20, the press switch or the contact sensor connects to the switch of the hydraulic component 8 to make the driving rod 7 gradually slide in the direction away from the claw 33.

[0046] The implementation principle of the embodiment of the present application is as follows: the driving rod 7, the driving mechanism 18 and the claw 33 are installed on the chuck 32 and the chuck 32 is installed on the chuck base 31, and then the chuck base 31 is installed on the turntable 2, and at the same time, the hydraulic component 8 is installed on the connecting disk 9, and the connecting disk 9 is installed on the back cover 5, and after the driving rod 7 and the hydraulic rod 82 of the hydraulic component 8 are connected, the back cover 5 is installed on the shell 81 to complete the assembly of the cam turntable 2 around, and the workpiece to be processed is installed on the chuck 32. When the workpiece is installed, the workpiece starts the hydraulic component 8 to drive the claw 33 to slowly clamp the workpiece by abutting the top block 20. After the workpiece is completely clamped, the workpiece is processed by rotating the turntable 2. After the workpiece is processed, the hydraulic component 8 drives the claw 33 away from the workpiece to release the workpiece, and the top block 20 ejects the workpiece to complete the processing of the workpiece.

[0047] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although the present application has been described in detail in this specification with reference to the above embodiments, a person of ordinary skill in the art should understand that a person of ordinary skill in the art can still modify or make equivalent substitutions to the present application, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. A rotary chuck link mechanism, comprising a body (1), a turntable (2) rotatably disposed on the body (1), characterized in that: A clamping mechanism (3) is mounted on the turntable (2), the clamping mechanism (3) comprising a chuck base (31), a chuck (32) and a clamping claw (33), the chuck base (31) being mounted on the turntable (2), the chuck (32) being mounted on the chuck base (31), and a plurality of clamping claws (33), the plurality of clamping claws (33) being evenly slidably arranged in a circumferential direction of the chuck (32), and the clamping claws (33) being synchronously slidable in a direction approaching or away from the center of the chuck (32).

2. A rotary chuck link mechanism according to claim 1, characterized in that: A maintenance opening (4) is provided on the side of the machine body (1) facing away from the turntable (2); the maintenance opening (4) is provided directly behind the turntable (2); and a rear cover (5) is detachably mounted on the maintenance opening (4).

3. A rotary chuck link mechanism according to claim 2, characterized in that: A through hole (6) is provided at the center of the turntable (2), and the through hole (6) passes through the rear cover (5). A driving rod (7) is provided in the chuck (32), and one end of the driving rod (7) is connected to all the claws (33) to drive all the claws (33) to slide synchronously. The driving rod (7) extends out of the chuck (32), passes through the through hole (6), and passes through the rear cover (5) out of the body (1).

4. A rotary chuck link mechanism according to claim 3, characterized in that: A hydraulic assembly (8) is mounted on the rear cover (5), the hydraulic assembly (8) comprising a housing (81) and a hydraulic rod (82), the housing (81) being mounted on the rear cover (5), the hydraulic rod (82) being slidably disposed in the housing (81), and one end of the hydraulic rod (82) extending out of the housing (81) and being coaxially connected to the drive rod (7).

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

6. A rotary chuck link mechanism according to claim 5, characterized in that: A piston groove (10) is arranged in the housing (81), a piston block (11) is fixedly arranged on the hydraulic rod (82), and the piston block (11) is rotatably and slidably arranged in the piston groove (10), a first oil injection pipe (12) and a second oil injection pipe (13) are arranged on the housing (81), and a first flow channel (14) and a second flow channel (15) are opened in the housing (81), the first flow channel (14) connects the first oil injection pipe (12) and one side of the piston groove (10) in the length direction, and 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 link mechanism according to claim 6, characterized in that: A positioning ring (16) is fixedly provided on the connecting disk (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), and 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 link mechanism according to claim 7, characterized in that: A driving mechanism (18) is arranged between one end of the driving rod (7) inserted into the chuck (32) and the claw (33), the driving mechanism (18) comprising a driving ring (181) and a driving block (182), the driving ring (181) being mounted on the driving rod (7), the driving ring (181) being provided with a plurality of driving grooves (19), the number of the driving grooves (19) being the same as the number of the claws (33), the bottom of the driving groove (19) being provided with a wedge-shaped surface, the driving blocks (182) being provided with a plurality of driving blocks (182), the plurality of driving blocks (182) being respectively fixed on the plurality of claws (33), the plurality of driving blocks (182) being respectively placed in the plurality of driving grooves (19), the driving blocks (182) being wedge-shaped blocks, the inclined surfaces of the driving blocks (182) being in contact with the wedge-shaped surfaces at the bottom of the driving grooves (19).

9. A rotary chuck link mechanism according to claim 8, characterized in that: The driving ring (181) comprises a mounting ring (1811) and a control ring (1812); the mounting ring (1811) is mounted on the driving rod (7); the control ring (1812) is detachably mounted on the mounting ring (1811); and the driving groove (19) is provided on the control ring (1812).

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

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