V-shaped positioning fixture for chuck

Abstract

The utility model relates to the technical field of chucks, and discloses a V-shaped positioning fixture for a chuck, which comprises the chuck and a clamping jaw, the surface of the chuck is connected with a movable seat in a sliding manner, a supporting seat is fixedly mounted on the surface of the movable seat, and the V-shaped positioning fixture for the chuck is provided with a control assembly. Round blocks fixed to the surfaces of the clamping jaws are attached to the surface of a round plate, supporting rods fixed to the surface of the round plate penetrate into through holes formed in the surfaces of the round blocks, the through holes abut against clamping rods hinged to the surfaces of the supporting rods, the clamping rods are stressed to be turned over under supporting of torsional springs and move into arc-shaped grooves from the interiors of the through holes, and after the abutting of the through holes is lost, the clamping rods are clamped into the arc-shaped grooves. The clamping rod can bounce and be clamped into the arc-shaped groove under the supporting of the torsional spring, the clamping block fixed to the surface of the supporting rod can fix the circular block and the supporting rod, the circular plate and the circular block cannot be separated, and therefore the purpose of preliminarily fixing the clamping jaw is achieved, and the situation that the clamping jaw deviates and is dislocated in the subsequent bolt connection process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of chuck technology, specifically a V-shaped positioning fixture for chucks. Background Technology

[0002] A chuck is a device used to clamp workpieces, widely used in machine tools (such as lathes and grinding machines) to keep the workpiece in a stable position during machining. It mainly consists of a chuck body, jaws, and a drive mechanism.

[0003] According to a V-shaped positioning fixture for chucks published in the specification (Announcement No.: CN209811268U), the connection between the jaws and the chuck in the above application is achieved by bolts. During the connection process, the operator needs to continuously align the bolt holes on the jaw surface with the bolt holes on the chuck surface before the connection can be made. However, during manual alignment with one hand, deviations are very likely to occur, which can lead to misalignment of the bolts during the connection process, resulting in misalignment of the jaws and the chuck. To address this problem, we propose a V-shaped positioning fixture for chucks. Utility Model Content

[0004] The purpose of this invention is to provide a V-shaped positioning fixture for chucks to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a V-shaped positioning fixture for a chuck, comprising a chuck and a jaw, wherein the surface of the chuck is slidably connected to a movable base, a support base is fixedly installed on the surface of the movable base, a locking hole is formed on the surface of the support base, and a control component for positioning the jaw is provided inside the support base. The control component includes: a circular block, which is fixedly installed on the surface of the jaw, a through hole is formed on the surface of the circular block, and an arc-shaped groove is formed inside the circular block; and a support rod, the surface of which is hinged to the jaw rod, and a locking block is fixedly installed on the surface of the support rod, thereby achieving the purpose of initially fixing the jaw and avoiding jaw offset or misalignment during subsequent bolt connection.

[0006] Preferably, the control assembly further includes a positioning component, which includes a torsion spring. One side of the torsion spring is fixedly mounted on the surface of the lever, and the other side of the torsion spring is fixedly mounted on the surface of the support rod. A circular plate is fixedly mounted on the surface of the support rod. When the lever is pressed against the through hole, it can be folded under the support of the torsion spring.

[0007] Preferably, the circular plate is rotatably connected to the surface of the fixed plate, the fixed plate is fixedly installed on the inner wall of the support base, and a rotating rod is fixedly installed on the surface of the circular plate. The rotating rod passes through the fixed plate and is rotatably connected to the fixed plate. When the rotating rod rotates, the circular plate fixed on the surface of the rotating rod can rotate synchronously on the surface of the fixed plate.

[0008] Preferably, the rotating rod is rotatably connected to the inner wall of the support base, and an annular groove is formed on the surface of the rotating rod. The annular groove is slidably connected to the slider, and the slider is fixedly installed on the inner wall of the moving plate. When the moving plate moves, the slider can slide in the annular groove formed on the surface of the rotating rod.

[0009] Preferably, the movable plate is penetrated by a horizontal rod and slidably connected to the horizontal rod. The horizontal rod is fixedly installed on the surface of the fixed plate. The surface of the horizontal rod is fixedly connected to one end of a spring, and the other end of the spring is fixedly installed on the surface of the movable plate. When the movable plate is subjected to force, it can make stable lateral movements on the surface of the horizontal rod.

[0010] Preferably, a crossbar is fixedly installed on the inner wall of the movable plate. The crossbar passes through the movable rod and is slidably connected to the movable rod. The movable rod passes through the support base and is slidably connected to the support base. The inner wall of the support base is rotatably connected to the disc. The disc is fixedly connected to the surface of the rotating rod. A slot is provided on the surface of the disc. When the rotating rod rotates, the disc fixed to the surface of the rotating rod can rotate on the inner wall of the support base. At the same time, the slot provided on the surface of the disc can restrict the rotation of the disc.

[0011] Preferably, the support base is penetrated by the push rod and slidably connected to the push rod, a limit block is fixedly installed on the surface of the push rod, the push rod is penetrated by the support rod and slidably connected to the support rod, the support rod is fixedly installed on the inner wall of the support base, the surface of the support rod is fixedly connected to one end of the second spring, and the other end of the second spring is fixedly installed on the surface of the push rod. When the push rod is squeezed, it can move laterally on the surface of the support rod under the support of the second spring.

[0012] Compared with the prior art, this utility model provides a V-shaped positioning fixture for chucks, which has the following beneficial effects:

[0013] 1. This chuck uses a V-shaped positioning fixture. Through the setting of a control component, the circular block fixed on the surface of the chuck claw is attached to the surface of the circular plate. The support rod fixed on the surface of the circular plate passes through the through hole opened on the surface of the circular block. The through hole abuts against the locking rod hinged on the surface of the support rod. The locking rod is folded under the support of the torsion spring and moves from the through hole into the arc groove. After losing the abutment of the through hole, the locking rod can spring up under the support of the torsion spring and lock into the arc groove. Then the locking block fixed on the surface of the support rod can complete the fixation of the circular block and the support rod. The circular plate and the circular block cannot be separated, thereby achieving the purpose of initial fixation of the chuck claw and avoiding the chuck claw offset or misalignment during subsequent bolt connection.

[0014] 2. This chuck uses a V-shaped positioning clamp. By setting a positioning component, when the rotating rod rotates, the circular plate fixed on the surface of the rotating rod can drive the support rod to rotate synchronously. After rotation, the hinged clamp on the surface of the support rod will coincide with the through hole, so the circular plate can be separated from the circular block. During the rotation of the rotating rod, the circular disk fixed on the surface of the rotating rod can rotate synchronously. Since the surface of the circular disk has a slot, when the limiting block is located in the slot, the rotating rod and the circular plate cannot rotate. This method enhances the stability of the chuck after initial fixing. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the support base of this utility model;

[0018] Figure 4 This is a schematic diagram of the claw structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the control component structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the support base of this utility model.

[0021] In the diagram: 1. Chuck; 2. Moving seat; 3. Support seat; 4. Locking hole; 5. Claw; 6. Control component; 61. Circular block; 62. Through hole; 63. Arc groove; 64. Support rod; 65. Locking rod; 66. Locking block; 67. Positioning component; 671. Torsion spring; 672. Circular plate; 673. Fixing plate; 674. Rotating rod; 675. Annular groove; 676. Slider; 677. Moving plate; 679. Flat rod; 6710. Spring 1; 6711. Crossbar; 6712. Moving rod; 6713. Circular disc; 6714. Locking groove; 6715. Limiting block; 6716. Push rod; 6717. Support rod; 6718. Spring 2. Detailed Implementation

[0022] like Figures 1-6As shown, this utility model provides a technical solution: a V-shaped positioning fixture for a chuck, including a chuck 1 and a jaw 5. The surface of the chuck 1 is slidably connected to a movable base 2. A support base 3 is fixedly installed on the surface of the movable base 2. A locking hole 4 is opened on the surface of the support base 3. A control component 6 for positioning the jaw 5 is provided inside the support base 3. The control component 6 includes: a circular block 61, which is fixedly installed on the surface of the jaw 5. A through hole 62 is opened on the surface of the circular block 61. An arc groove 63 is opened inside the circular block 61. The surface of a support rod 64 is hinged to a locking rod 65. The surface of the support rod 64 is fixed. The clamping block 66 is installed, and the round block 61 fixed on the surface of the claw 5 is inserted into the support base 3. The through hole 62 on the surface of the round block 61 will abut against the clamping rod 65 hinged on the surface of the support rod 64. The clamping rod 65 is bent under the support of the torsion spring 671 and passes through the through hole 62 into the arc groove 63. When it enters the arc groove 63, it bounces up under the support of the torsion spring 671 and completes the connection between the round block 61 and the round plate 672 through the clamping block 66, thereby achieving the purpose of initially fixing the claw 5 and avoiding the claw 5 from shifting or misaligning during subsequent bolt connection.

[0023] The control assembly 6 also includes a positioning element 67, which includes a torsion spring 671. One side of the torsion spring 671 is fixedly mounted on the surface of the latch rod 65, and the other side of the torsion spring 671 is fixedly mounted on the surface of the support rod 64. A circular plate 672 is fixedly mounted on the surface of the support rod 64. When the latch rod 65 is abutted by the through hole 62, it can be folded under the support of the torsion spring 671. The circular plate 672 is rotatably connected to the surface of the fixing plate 673. The fixing plate 673 is fixedly mounted on the inner wall of the support base 3. A rotating rod 674 is fixedly mounted on the surface of the circular plate 672. The rotating rod 674 passes through the fixing plate 673 and is rotatably connected to the fixing plate 673. When the rotating rod 674 rotates, the circular plate 672 fixed to the surface of the rotating rod 674 can rotate synchronously on the surface of the fixing plate 673. The rotating rod 674 is rotatably connected to the inner wall of the support base 3. An annular groove 675 is formed on the surface of the rotating rod 674, and the annular groove 675 is slidably connected to the slider 676. The slider 676 is fixedly installed on the inner wall of the movable plate 677. When the movable plate 677 moves, the slider 676 can slide within the annular groove 675 formed on the surface of the rotating rod 674. The movable plate 677 is penetrated by a flat rod 679 and is slidably connected to the flat rod 679. The flat rod 679 is fixedly installed on the surface of the fixed plate 673. One end of the flat rod 679 is fixedly connected to one end of the spring 6710, and the other end of the spring 6710 is fixedly installed on the surface of the movable plate 677. When the movable plate 677 is subjected to force, it can make stable lateral movements on the surface of the flat rod 679. A crossbar 6711 is fixedly installed on the inner wall of the movable plate 677. The crossbar 6711 passes through the movable rod 6712 and is slidably connected to the movable rod 6712. The movable rod 6712 passes through the support base 3 and is slidably connected to the support base 3. The inner wall of the support base 3 is rotatably connected to the disc 6713. The disc 6713 is fixedly connected to the surface of the rotating rod 674. A slot 6714 is provided on the surface of the disc 6713. When the rotating rod 674 rotates, the disc 6713 fixed on the surface of the rotating rod 674 can rotate on the inner wall of the support base 3. At the same time, the slot 6714 on the surface of the disc 6713 can restrict the rotation of the disc 6713. The support base 3 is penetrated by the push rod 6716 and slidably connected to the push rod 6716. A limit block 6715 is fixedly installed on the surface of the push rod 6716. The push rod 6716 is penetrated by the support rod 6717 and slidably connected to the support rod 6717. The support rod 6717 is fixedly installed on the inner wall of the support base 3. The surface of the support rod 6717 is fixedly connected to one end of the second spring 6718. The other end of the second spring 6718 is fixedly installed on the surface of the push rod 6716. When the push rod 6716 is squeezed, it can move laterally on the surface of the support rod 6717 under the support of the second spring 6718.

[0024] In this invention, when it is necessary to mount the chuck 5 on the surface of the chuck 1, the circular block 61 fixed to the surface of the chuck 5 is inserted into the support base 3. The through hole 62 on the surface of the circular block 61 will abut against the chuck 65 hinged to the surface of the support rod 64. The chuck 65 is bent under the support of the torsion spring 671 and passes through the through hole 62 into the arc groove 63. When it enters the arc groove 63, it bounces up under the support of the torsion spring 671 and completes the mounting of the circular block 61 and the circular plate 67 through the chuck block 66. After the initial connection and fixation of 2, the operator can use bolts to fix it. After fixing the three sets of jaws 5, the chuck 1 can be used. If the jaws 5 are damaged during use, remove the bolts and push the push rod 6716 on the surface of the support base 3. The push rod 6716 slides on the surface of the support rod 6717 under force. The limiting block 6715 fixed on the surface of the push rod 6716 moves out of the slot 6714 opened on the surface of the disc 6713. After it moves out, the pushing force is maintained on the support. The surface of seat 3 pushes the moving rod 6712. The moving rod 6712 slides on the surface of the horizontal rod 679 by contacting the moving plate 677 via the crossbar 6711. When the moving plate 677 moves, the slider 676 fixed on the inner wall of the moving plate 677 can slide in the annular groove 675 opened on the surface of the rotating rod 674. Then the rotating rod 674 can drive the circular plate 672 to rotate on the surface of the fixed plate 673. When the circular plate 672 rotates, the support rod 64 fixed on the surface of the circular plate 672 can rotate synchronously. After rotation The latch 65 hinged to the surface of the support rod 64 will be parallel to the through hole 62, so the support rod 64 can be separated from the round block 61. After rotation, the moving rod 6712 is pushed on the surface of the crossbar 6711, and the moving rod 6712 is moved to the corner of the latch hole 4, which can restrict the movement of the moving plate 677, so that the operator can take the claw 5. The claw 5 is removed from the support base 3, and the disassembly is completed, so that the operator can replace the damaged claw 5 individually and avoid waste of resources.

[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A V-shaped positioning fixture for a chuck, comprising a chuck (1) and a chuck jaw (5), characterized in that: The surface of the chuck (1) is in sliding connection with the moving seat (2), the surface of the moving seat (2) is fixedly installed with the supporting seat (3), the surface of the supporting seat (3) is provided with the clamping hole (4), the supporting seat (3) is provided with the control assembly (6) for positioning the clamping jaw (5), the control assembly (6) comprises: The surface of the round block (61) is fixedly installed on the surface of the clamping jaw (5), the surface of the round block (61) is provided with the through hole (62), and the arc-shaped groove (63) is formed in the round block (61); The surface of the supporting rod (64) is hinged with the clamping rod (65), and the clamping block (66) is fixedly installed on the surface of the supporting rod (64).

2. The V-type positioning fixture for a chuck according to claim 1, characterized in that: The control assembly (6) further comprises a positioning piece (67), and the positioning piece (67) comprises: a torsional spring (671), one side of the torsional spring (671) is fixedly installed on the surface of the clamping rod (65), the other side of the torsional spring (671) is fixedly installed on the surface of the supporting rod (64), and the surface of the supporting rod (64) is fixedly installed with a round plate (672).

3. The V-type fixture for a chuck as set forth in claim 2, wherein: The surface of the round plate (672) is rotatably connected with the surface of the fixed plate (673), the fixed plate (673) is fixedly installed on the inner wall of the supporting seat (3), the surface of the round plate (672) is fixedly installed with a rotating rod (674), and the rotating rod (674) penetrates through the fixed plate (673) and is rotatably connected with the fixed plate (673).

4. The V-type fixture for a chuck as set forth in claim 3, wherein: The surface of the rotating rod (674) is rotatably connected with the inner wall of the supporting seat (3), the surface of the rotating rod (674) is provided with an annular groove (675), the annular groove (675) is in sliding connection with a sliding block (676), and the sliding block (676) is fixedly installed on the inner wall of a moving plate (677).

5. The V-type fixture for a chuck as set forth in claim 4, wherein: The moving plate (677) is penetrated by a flat rod (679) and is in sliding connection with the flat rod (679), the flat rod (679) is fixedly installed on the surface of the fixed plate (673), the surface of the flat rod (679) is fixedly connected with one end of a spring (6710), and the other end of the spring (6710) is fixedly installed on the surface of the moving plate (677).

6. The V-type fixture for a chuck as set forth in claim 4, wherein: The inner wall of the moving plate (677) is fixedly installed with a cross rod (6711), the cross rod (6711) penetrates through a moving rod (6712) and is in sliding connection with the moving rod (6712), the moving rod (6712) penetrates through the supporting seat (3) and is in sliding connection with the supporting seat (3), the inner wall of the supporting seat (3) is rotatably connected with a disc (6713), the disc (6713) is fixedly connected with the surface of the rotating rod (674), and the surface of the disc (6713) is provided with a clamping groove (6714).

7. The V-type fixture for a chuck as set forth in claim 1, wherein: The supporting base (3) is penetrated by a push rod (6716) and is in sliding connection with the push rod (6716), the surface of the push rod (6716) is fixedly installed with a limiting block (6715), the push rod (6716) is penetrated by a supporting rod (6717) and is in sliding connection with the supporting rod (6717), the supporting rod (6717) is fixedly installed on the inner wall of the supporting base (3), and the surface of the supporting rod (6717) is fixedly connected with one end of a second spring (6718), and the other end of the second spring (6718) is fixedly installed on the surface of the push rod (6716).

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