Machine tool chuck used for machine manufacturing and accurate in positioning

Abstract

The utility model discloses a machine tool chuck with accurate positioning for machine manufacturing, which relates to the field of machine manufacturing and comprises a base, and a second fixing plate and a locking component are respectively arranged on one side of the top of the base. Through the arrangement of the locking assembly, when the angle of a workpiece needs to be adjusted, a worker can rotate the worm through the rotating handle, the worm drives the worm gear to rotate, the worm gear drives the second rotating shaft to rotate, the chuck body and the pointer are driven to rotate, then the workpiece clamped by the chuck body is driven to rotate, and the worm does not need to be rotated after adjustment is completed; at the moment, due to the self-locking performance of the worm gear and the worm, the second rotating shaft can be prevented from rotating at will, then the chuck body is prevented from rotating, and if a worker needs to improve the locking effect on the worm, the worker can also rotate the locking screw to enable the bottom end of the locking screw to be screwed into the threaded hole, so that the locking effect on the worm can be improved, and the working efficiency is improved. In this way, the angle of the workpiece can be rapidly adjusted.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, and particularly relates to a machine tool chuck with accurate positioning for mechanical manufacturing. Background Technique

[0002] A chuck is a mechanical device used to clamp workpieces on a machine tool. It is a machine tool accessory that clamps and positions workpieces by the radial movement of movable jaws evenly distributed on the chuck body. Generally, a chuck consists of a chuck body, movable jaws, and a jaw drive mechanism.

[0003] According to the Chinese patent with the publication number CN218224699U, a machine tool chuck with accurate positioning for mechanical manufacturing is disclosed. This utility model can achieve more accurate fine adjustment of the angle of the workpiece clamped by the chuck body, and after adjustment, the adjusted angle can be fixed by locking the limit disk. Its structural setting is simple and reasonable, and the practical effect is obvious.

[0004] Regarding the above-mentioned disclosed patent content, by setting a limit disk and a limit component, in order to improve the accuracy of angle adjustment, the limit disk will be locked to a certain extent before adjustment, and then by rotating the gear, the workpiece can be slowly rotated by a certain angle. After the angle adjustment of the workpiece is completed, the limit disk is locked and fixed by the limit component to prevent it from rotating randomly. However, the operation steps of this process are more, and when locking the limit disk during the angle adjustment of the workpiece, the staff needs to spend a lot of effort to overcome the friction between the limit disk and the limit component to make the workpiece rotate, thus reducing the adjustment efficiency of the workpiece angle and the fixing efficiency of the chuck. Content of the Utility Model

[0005] Based on this, the purpose of the present utility model is to provide a machine tool chuck with accurate positioning for mechanical manufacturing to solve the technical problem of poor fixing efficiency after the angle adjustment of the workpiece.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: A machine tool chuck with accurate positioning for mechanical manufacturing, including a base. On one side of the top of the base, a second fixing plate and a locking component are respectively provided. A second rotating shaft is connected to the second fixing plate through a bearing. The locking component includes a worm gear installed at one end of the second rotating shaft, a fixing frame installed on one side of the top of the base, and a worm installed on one side of the top of the base through a bearing. The top end of the worm penetrates through the fixing frame and is installed with a turning handle.

[0007] By adopting the above technical solution, when it is necessary to adjust the angle of the workpiece, the worm can be rotated by the turning handle, and the worm will drive the worm gear to rotate, and drive the second rotating shaft to rotate.

[0008] Further, threaded holes are also provided inside the worm and on one side of the top of the base, and locking screws are threadedly connected inside the threaded holes.

[0009] By adopting the above technical solution, after the bottom end of the locking screw is screwed into the threaded hole on one side of the top of the base and the locking screw is no longer rotated, the locking screw can then serve the purpose of locking the worm.

[0010] Further, the top end of the locking screw penetrates through the rotating handle and a knob is installed.

[0011] By adopting the above technical solution, when it is necessary to improve the locking effect on the worm, the staff can rotate the locking screw through the knob, causing the locking screw to move.

[0012] Further, a scale plate is provided on one side of the second fixing plate.

[0013] By adopting the above technical solution, it is convenient to know the rotation angle of the second rotating shaft.

[0014] Further, a pointer is installed on the second rotating shaft, and the pointer is located on one side of the scale plate.

[0015] By adopting the above technical solution, when the second rotating shaft rotates, it will drive the pointer to rotate, facilitating the staff to accurately understand the rotation angle of the second rotating shaft.

[0016] Further, on the other side of the top of the base, a first fixing plate is provided, and a first rotating shaft is connected to the first fixing plate through a bearing.

[0017] By adopting the above technical solution, the setting of the first rotating shaft is convenient for improving the stability when the chuck body rotates.

[0018] Further, a chuck body is installed at one end of the first rotating shaft and one end of the second rotating shaft.

[0019] By adopting the above technical solution, after the second rotating shaft rotates, it can drive the chuck body to rotate, and the chuck body then drives the workpiece it clamps to rotate, so that the angle of the workpiece can be adjusted.

[0020] Further, the worm is engaged with the worm gear.

[0021] By adopting the above technical solution, when the worm rotates, it will drive the worm gear to rotate, and the worm gear will drive the second rotating shaft to rotate.

[0022] Further, an anti-slip sleeve is installed on the rotating handle, and the worm gear is located inside the fixing frame.

[0023] By adopting the above technical solution, it is convenient for the staff to rotate the worm through the rotating handle, and the setting of the anti-slip sleeve can improve the stability of the staff holding the rotating handle.

[0024] In summary, the present utility model mainly has the following beneficial effects:

[0025] In the present utility model, by providing a locking assembly, when it is necessary to adjust the angle of a workpiece, a worker can rotate a worm through a rotating handle. The worm drives a worm gear to rotate, the worm gear drives a second rotating shaft to rotate, thereby driving a chuck body and a pointer to rotate, and further driving the workpiece clamped by the chuck body to rotate. After the adjustment is completed, there is no need to rotate the worm. At this time, due to the self-locking property of the worm gear and the worm, the second rotating shaft can be prevented from rotating randomly, thereby avoiding the rotation of the chuck body. If the worker needs to improve the locking effect on the worm, the locking screw can also be rotated, so that the bottom end of the locking screw is screwed into the threaded hole, thereby improving the locking effect on the worm. In this way, the angle of the workpiece can be quickly adjusted, and the self-locking property of the worm gear and the worm can achieve a good locking effect, avoiding using other more complex locking mechanisms to lock the rotating shaft. At the same time, this operation has few steps and a simple structure, thereby improving the adjustment efficiency of the workpiece angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0027] Figure 2 is a schematic front-sectional structure diagram of the worm of the present utility model;

[0028] Figure 3 is a schematic side structure diagram of the second fixing plate of the present utility model;

[0029] Figure 4 is a schematic three-dimensional structure diagram of the worm gear of the present utility model;

[0030] Figure 5 is a schematic bottom view structure diagram of the worm of the present utility model.

[0031] In the figure: 1, base; 2, first fixing plate; 3, first rotating shaft; 4, chuck body; 5, scale plate; 6, second fixing plate; 7, pointer; 8, second rotating shaft; 9, locking assembly; 901, fixing bracket; 902, worm; 903, rotating handle; 904, worm gear; 905, threaded hole; 906, locking screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0033] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0034] Embodiment 1:

[0035] A machine tool chuck with precise positioning for mechanical manufacturing, as Figures 1-5 shown, including a base 1. On one side of the top of the base 1, a second fixing plate 6 and a locking assembly 9 are respectively provided. A second rotating shaft 8 is connected to the second fixing plate 6 through a bearing. On the other side of the top of the base 1, a first fixing plate 2 is provided, and a first rotating shaft 3 is connected to the first fixing plate 2 through a bearing. The setting of the first rotating shaft 3 facilitates improving the stability when the chuck body 4 rotates. One end of the first rotating shaft 3 and one end of the second rotating shaft 8 are both equipped with a chuck body 4. After the second rotating shaft 8 rotates, it can drive the chuck body 4 to rotate, and the chuck body 4 then drives the workpiece it clamps to rotate, so that the angle of the workpiece can be adjusted.

[0036] Specifically, the locking assembly 9 includes a worm gear 904 installed at one end of the second rotating shaft 8, a fixing frame 901 installed on one side of the top of the base 1, and a worm 902 provided through a bearing on one side of the top of the base 1. The top end of the worm 902 penetrates through the fixing frame 901 and is equipped with a turning handle 903. An anti-slip sleeve is installed on the turning handle 903. The worm gear 904 is located inside the fixing frame 901, which is convenient for the staff to rotate the worm 902 through the turning handle 903, and the setting of the anti-slip sleeve can improve the stability of the staff holding the turning handle 903. When it is necessary to adjust the angle of the workpiece, the worm 902 can be rotated through the turning handle 903, and the worm 902 drives the worm gear 904 to rotate and drives the second rotating shaft 8 to rotate. The worm 902 meshes with the worm gear 904. When the worm 902 rotates, it will drive the worm gear 904 to rotate, and the worm gear 904 will drive the second rotating shaft 8 to rotate.

[0037] Embodiment 2:

[0038] On the basis of the above Embodiment 1, in order to improve the locking effect on the worm 902, the following structure is set.

[0039] Specifically, a threaded hole 905 is also opened inside the worm 902 and on one side of the top of the base 1. A locking screw 906 is threadedly connected inside the threaded hole 905. The top end of the locking screw 906 penetrates through the turning handle 903 and is equipped with a knob. When it is necessary to improve the locking effect on the worm 902, the staff can rotate the locking screw 906 through the knob, so that the locking screw 906 moves. After the bottom end of the locking screw 906 is screwed into the threaded hole on one side of the top of the base 1, the locking screw 906 is no longer rotated. At this time, the locking screw 906 can achieve the purpose of locking the worm 902.

[0040] Embodiment 3:

[0041] On the basis of the above Embodiment 1, in order to facilitate the staff to accurately understand the rotation angle of the workpiece, the following structure is set.

[0042] Refer to Figures 1-4 , on one side of the second fixing plate 6, there is a scale plate 5, and a pointer 7 is installed on the second rotating shaft 8. The pointer 7 is located on one side of the scale plate 5. When the second rotating shaft 8 rotates, it will drive the pointer 7 to rotate, and together with the scale on the scale plate 5, it is convenient for the staff to accurately understand the rotation angle of the second rotating shaft 8, thereby improving the accuracy of angle rotation.

[0043] The working principle of the present utility model is as follows: First, during use, the mechanical workpiece to be processed is placed between the two chuck bodies 4, and the workpiece is clamped and fixed by the chuck bodies 4. When it is necessary to adjust the angle of the workpiece, the staff can rotate the worm 902 through the turning handle 903. After the worm 902 rotates, it will drive the worm gear 904 to rotate. The worm gear 904 drives the second rotating shaft 8 to rotate, thereby driving the chuck body 4 and the pointer 7 to rotate, and then driving the workpiece clamped by the chuck body 4 to rotate. And the staff can accurately understand the rotation angle of the second rotating shaft 8 according to the pointer 7 and the scale plate 5. When the angle adjustment is completed, just stop rotating the turning handle 903. If the staff needs to improve the locking effect of the worm 902, they can also rotate the locking screw 906 so that the bottom end of the locking screw 906 is screwed into the threaded hole 905 on the base 1, thereby improving the locking effect of the worm 902.

[0044] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model, and they are not limitations to the utility model. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can, without departing from the principle and purpose of the present utility model, make modifications, substitutions and variations that do not contribute creatively to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A machine tool chuck with precise positioning for mechanical manufacturing, comprising a base (1), characterized in that: A second fixing plate (6) and a locking assembly (9) are respectively provided on one side of the top of the base (1); the second fixing plate (6) is connected to a second rotating shaft (8) via a bearing; the locking assembly (9) comprises a worm gear (904) mounted on one end of the second rotating shaft (8), a fixing frame (901) mounted on one side of the top of the base (1), and a worm (902) arranged on one side of the top of the base (1) via a bearing; the top end of the worm (902) passes through the fixing frame (901) and is provided with a rotating handle (903).

2. A machine tool chuck with precise positioning for mechanical manufacturing according to claim 1, characterized in that: A threaded hole (905) is also provided inside the worm (902) and on one side of the top of the base (1), and a locking screw (906) is connected to the internal thread of the threaded hole (905).

3. A machine tool chuck with precise positioning for mechanical manufacturing according to claim 2, characterized in that: The top end of the locking screw (906) passes through the rotating handle (903) and is provided with a knob.

4. The machine tool chuck with precise positioning for mechanical manufacturing according to claim 1, characterized in that: A scale plate (5) is provided on one side of the second fixing plate (6).

5. The machine tool chuck with precise positioning for mechanical manufacturing according to claim 4, characterized in that: A pointer (7) is mounted on the second rotating shaft (8), and the pointer (7) is located on one side of the scale plate (5).

6. The machine tool chuck with precise positioning for mechanical manufacturing according to claim 1, characterized in that: A first fixing plate (2) is provided on the other side of the top of the base (1), and a first rotating shaft (3) is connected to the first fixing plate (2) via a bearing.

7. The machine tool chuck with precise positioning for mechanical manufacturing according to claim 6, characterized in that: A chuck body (4) is mounted on one end of the first rotating shaft (3) and one end of the second rotating shaft (8).

8. The machine tool chuck with precise positioning for mechanical manufacturing according to claim 1, characterized in that: The worm (902) is meshed with the worm wheel (904).

9. The machine tool chuck with precise positioning for mechanical manufacturing according to claim 1, characterized in that: An anti-slip sleeve is installed on the rotating handle (903), and the worm gear (904) is located inside the fixing frame (901).

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