A positioning structure for valve stem fitting machining

Abstract

The utility model discloses a positioning structure for valve stem accessory machining relates to valve stem accessory machining technical field, it includes L type machine base, is connected with three jaw chuck on L type machine base through adjusting mechanism, and adjusting mechanism includes height adjusting assembly and rotation adjusting assembly, rotation adjusting assembly includes protective cover, the drive motor of fixed installation in protective cover one side outer wall, the driving bevel gear of fixed sleeve in drive motor output shaft, rotates and is installed in protective cover one side's pivot, the driven bevel gear of fixed sleeve in pivot and coaxial welding in pivot one end outer wall's carousel, and three jaw chuck fixed mounting in the lateral wall of carousel, the utility model discloses the cooperation of rotation adjusting assembly and height adjusting assembly has realized the dual -purpose adjusting effect of rotation adjustment and height adjustment, has increased the adjustability of whole positioning structure to improved the flexibility and practicality of use, can better adapt the processing demand of diversification.

Description

Technical Field

[0001] This utility model relates to the field of valve stem accessory processing technology, and in particular to a positioning structure for valve stem accessory processing. Background Technology

[0002] Valve stem fittings are important components of valves. They are used to drive the actuator or handle at the top and directly drive the valve core to move or rotate, so as to realize the valve opening and closing or regulation function.

[0003] Currently, valve stem components require a positioning structure during a series of machining operations, often using a three-jaw chuck to secure them and ensure stability during subsequent processing. However, existing positioning structures have poor adjustability, affecting their flexibility and practicality, and failing to meet diverse machining needs. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the existing positioning structure has poor adjustability during use, which affects the flexibility and practicality of use and cannot meet diverse processing needs. Therefore, a positioning structure for valve stem fitting processing is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A positioning structure for processing valve stem fittings includes an L-shaped base, on which a three-jaw chuck is connected via an adjustment mechanism, and the adjustment mechanism includes a height adjustment component and a rotation adjustment component.

[0007] The rotation adjustment assembly includes a protective cover, a drive motor fixedly installed on one outer wall of the protective cover, a driving bevel gear fixedly mounted on the output shaft of the drive motor, a rotating shaft rotatably installed on one side of the protective cover, a driven bevel gear fixedly mounted on the rotating shaft, and a turntable coaxially welded to the outer wall of one end of the rotating shaft, with a three-jaw chuck fixedly installed on the side wall of the turntable.

[0008] As a preferred technical solution, the output shaft of the drive motor passes through one side of the protective cover, and the driving bevel gear and the driven bevel gear mesh with each other and are both located inside the protective cover.

[0009] By setting up the above technical solution, the protective cover provides a certain degree of dust protection for the two meshing gears, which can prevent the two gears from being exposed to the dust environment, which could easily affect the transmission accuracy.

[0010] As a preferred technical solution, the turntable and the three-jaw chuck are fixed with the same rubber shock-absorbing pad.

[0011] By setting up the above technical solution, the vibration damping effect of the rubber damping pad can reduce the vibration generated during the processing of valve stem accessories, which can cause the three-jaw chuck connection to loosen.

[0012] As a preferred technical solution, the height adjustment assembly includes a servo motor fixedly connected to the top outer wall of the L-shaped base via a motor mounting plate, a mounting groove opened on one side of the L-shaped base, an adjusting screw rotatably installed in a sliding groove, an adjusting bracket threadedly connected to the adjusting screw, and a sliding seat fixedly connected to the adjusting bracket, with the protective cover fixedly connected to the side wall of the sliding seat.

[0013] With the above technical solution, the machining height of the valve stem fittings fixed on the three-jaw chuck can be flexibly adjusted by the height adjustment component.

[0014] As a preferred technical solution, the top end of the adjusting screw passes through the top of the mounting groove, and the output shaft of the servo motor is coaxially and fixedly connected to the top end of the adjusting screw through a coupling.

[0015] With the above technical solution, the lead screw can be stably rotated by the servo motor under the stable connection effect of the coupling.

[0016] As a preferred technical solution, two linear guide rails are symmetrically fixed on the outer wall of the other side of the L-shaped base, and the sliding seat is slidably connected between the two linear guide rails.

[0017] By setting up the above technical solution, the sliding seat can be guaranteed to move in a stable linear motion in the vertical direction, thus improving the stability during the height adjustment process.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. Equipped with a rotation adjustment component, which consists of a drive motor, a driving bevel gear, a rotating shaft, a driven bevel gear, and a turntable, the valve stem component positioned on the three-jaw chuck can rotate continuously during the processing, thereby improving the processing efficiency of the valve stem component;

[0020] 2. Equipped with a height adjustment component, which consists of a servo motor, an adjusting screw, an adjusting bracket, and a sliding seat, the machining height of the valve stem accessories fixed on the three-jaw chuck can be flexibly adjusted to meet different machining conditions;

[0021] In summary, this utility model achieves dual adjustment effects of rotation and height by combining the rotation adjustment component and the height adjustment component, increasing the adjustability of the entire positioning structure, thereby improving its flexibility and practicality and enabling it to better adapt to diverse processing needs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention from one side view;

[0023] Figure 2 This is a three-dimensional disassembled structural diagram of a portion of the parts in this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the entire utility model from another side view.

[0025] Figure 4 This is a three-dimensional enlarged structural diagram of the interior of the protective cover in this utility model;

[0026] Figure 5 This is a side view of the connection between the adjusting screw and the adjusting bracket in this utility model.

[0027] In the diagram: 1. L-shaped base; 2. Three-jaw chuck; 3. Protective cover; 4. Drive motor; 5. Driving bevel gear; 6. Rotary shaft; 7. Driven bevel gear; 8. Turntable; 9. Rubber shock-absorbing pad; 10. Motor mounting plate; 11. Servo motor; 12. Adjusting screw; 13. Adjusting bracket; 14. Linear guide rail; 15. Sliding seat. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1, referring to Figure 1-2 and Figure 4 A positioning structure for processing valve stem accessories includes an L-shaped base 1. Four connecting seats are welded to the lower part of the L-shaped base 1, which can be fixedly connected to the support surface by bolts. A three-jaw chuck 2 is connected to the L-shaped base 1 through an adjustment mechanism. The three-jaw chuck 2 can clamp and position valve stem accessories of different specifications to ensure the stability of subsequent processing.

[0030] In this embodiment, the adjustment mechanism includes a height adjustment component and a rotation adjustment component. The rotation adjustment component includes a protective cover 3, a drive motor 4 fixedly installed on one outer wall of the protective cover 3, a driving bevel gear 5 fixedly mounted on the output shaft of the drive motor 4, a rotating shaft 6 rotatably installed on one side of the protective cover 3, a driven bevel gear 7 fixedly mounted on the rotating shaft 6, and a turntable 8 coaxially welded to the outer wall of one end of the rotating shaft 6. A three-jaw chuck 2 is fixedly installed on the side wall of the turntable 8.

[0031] As a further embodiment, the output shaft of the drive motor 4 passes through one side of the protective cover 3. The driving bevel gear 5 and the driven bevel gear 7 mesh with each other and are both located inside the protective cover 3. Thus, the protective cover 3 provides a certain dust protection for the two meshing gears, which can prevent the two gears from being exposed to the dust environment, which could easily affect the transmission accuracy.

[0032] As a further embodiment, the same rubber damping pad 9 is fixed between the turntable 8 and the three-jaw chuck 2. The damping effect of the rubber damping pad 9 can reduce the vibration generated during the processing of valve stem accessories, which may cause the three-jaw chuck 2 to become loose.

[0033] The working principle of this embodiment is as follows: the valve stem component to be processed is clamped and positioned by the three-jaw chuck 2, and the drive motor 4 drives the active bevel gear 5 to rotate. Subsequently, the driven bevel gear 7, which meshes with the active bevel gear 5, drives the turntable 8 at one end of the rotating shaft 6 to rotate. In this way, the valve stem component positioned on the three-jaw chuck 2 can rotate continuously during the processing, thereby improving the processing efficiency of the valve stem component.

[0034] Example 2, refer to Figure 1 , Figure 3 and Figure 5 This embodiment is an optimization based on embodiment 1. Specifically, the height adjustment component includes a servo motor 11 fixedly connected to the top outer wall of the L-shaped base 1 via a motor mounting plate 10, a mounting groove opened on one side of the L-shaped base 1, an adjusting screw 12 rotatably installed in the slide groove, an adjusting bracket 13 threadedly connected to the adjusting screw 12, and a sliding seat 15 fixedly connected to the adjusting bracket 13.

[0035] As a further embodiment, the protective cover 3 is fixedly connected to the side wall of the sliding seat 15, and the top end of the adjusting screw 12 passes through the top of the mounting groove. The adjusting screw 12 is deployed away from the valve stem accessory processing area, which can prevent the debris and dust generated during the processing from splashing into the spiral groove of the adjusting screw 12, thereby helping to ensure the normal performance of the adjusting screw 12. The output shaft of the servo motor 11 is coaxially fixedly connected to the top end of the adjusting screw 12 through a coupling. Under the stable connection effect of the coupling, the servo motor 11 can control the adjusting screw 12 to rotate stably.

[0036] As a further embodiment, two linear guide rails 14 are symmetrically fixed on the outer wall of the other side of the L-shaped base 1, and the sliding seat 15 is slidably connected between the two linear guide rails 14. This ensures that the sliding seat 15 moves stably in a straight line in the vertical direction, and improves the stability during the height adjustment process.

[0037] In addition, in order to ensure the normal use of the drive motor 4 in the subsequent height adjustment process in Embodiment 1, it can be electrically connected to an external control switch through a flexible drag chain cable.

[0038] The working principle of this embodiment is as follows: the servo motor 11 can control the forward and reverse rotation of the adjusting screw 12. Then, under the guidance of the two linear guide rails 14, the adjusting bracket 13, which is threadedly connected to the adjusting screw 12, can drive the sliding seat 15 to move up and down, thereby enabling flexible adjustment of the processing height of the valve stem accessory fixed on the three-jaw chuck 2 to meet different processing conditions.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning structure for machining valve stem fittings, comprising an L-shaped base (1), characterized in that, The L-shaped base (1) is connected to a three-jaw chuck (2) via an adjustment mechanism, and the adjustment mechanism includes a height adjustment component and a rotation adjustment component; The rotation adjustment assembly includes a protective cover (3), a drive motor (4) fixedly installed on one outer wall of the protective cover (3), a driving bevel gear (5) fixedly mounted on the output shaft of the drive motor (4), a rotating shaft (6) rotatably installed on one side of the protective cover (3), a driven bevel gear (7) fixedly mounted on the rotating shaft (6), and a turntable (8) coaxially welded to one end of the outer wall of the rotating shaft (6), and a three-jaw chuck (2) fixedly installed on the side wall of the turntable (8).

2. The positioning structure for machining valve stem fittings according to claim 1, characterized in that, The output shaft of the drive motor (4) passes through one side of the protective cover (3), and the driving bevel gear (5) and the driven bevel gear (7) mesh with each other and are both located inside the protective cover (3).

3. The positioning structure for machining valve stem fittings according to claim 1, characterized in that, The same rubber shock-absorbing pad (9) is fixed between the turntable (8) and the three-jaw chuck (2).

4. The positioning structure for machining valve stem fittings according to claim 1, characterized in that, The height adjustment assembly includes a servo motor (11) fixedly connected to the top outer wall of the L-shaped base (1) via a motor mounting plate (10), a mounting groove opened on one side of the L-shaped base (1), an adjusting screw (12) rotatably installed in the slide groove, an adjusting bracket (13) threadedly connected to the adjusting screw (12), and a sliding seat (15) fixedly connected to the adjusting bracket (13), and the protective cover (3) is fixedly connected to the side wall of the sliding seat (15).

5. The positioning structure for machining valve stem fittings according to claim 4, characterized in that, The top end of the adjusting screw (12) passes through the top of the mounting groove, and the output shaft of the servo motor (11) is coaxially and fixedly connected to the top end of the adjusting screw (12) through a coupling.

6. The positioning structure for machining valve stem fittings according to claim 1, characterized in that, Two linear guide rails (14) are symmetrically fixed on the outer wall of the other side of the L-shaped base (1), and the sliding seat (15) is slidably connected between the two linear guide rails (14).

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