A valve body milling clamping fixture

Abstract

This application discloses a valve body milling clamping fixture, belonging to the field of milling technology. It mainly includes: a milling machine with a placement plate; a clamping mechanism mounted on the placement plate, comprising: a column mounted on the placement plate; a mounting shell mounted on a column support adjustment assembly, the adjustment assembly mounted on one side of the mounting shell, the adjustment assembly comprising: an arc gear mounted on one side of the mounting shell; a second motor mounted on the placement plate; a fixed base mounted on the placement plate; a control gear mounted between the fixed bases and fixedly connected to the output end of the second motor; and baffles mounted at both ends of the arc gear. This valve body milling clamping fixture, by setting the adjustment assembly, adjusts the angle of the workpiece, achieving the effect of compensating for the machining reference.

Description

Technical Field

[0001] This application relates to the field of milling technology, specifically a valve body milling clamping fixture. Background Technology

[0002] A valve body milling machine is a CNC machine tool specifically designed for machining valve body parts. It integrates multiple machining functions such as milling, drilling, and tapping, enabling it to efficiently and accurately complete the machining of complex valve body structures.

[0003] A special fixture is used in the milling process of valve body. This special fixture is specifically designed to fix valve body parts in the milling process. Valve bodies usually have complex geometries (such as multiple flanges, irregular outer circles, inner cavities, etc.) and high-precision machining requirements (such as end faces, hole systems, sealing surfaces). This fixture ensures the stability of the valve body during the machining process through positioning and clamping mechanisms.

[0004] For example, patent CN221540283U discloses a milling clamping fixture. This patent achieves the effect of quickly fixing graphite products of different shapes while minimizing damage to the graphite products by using a fixture table, a first limiting block, a second limiting block, a servo motor, a bidirectional threaded rod, a clamping block, a load-bearing plate, an auxiliary concave block, a clamping telescopic rod, a clamping spring, a sponge block, a positioning hole, a positioning block, a positioning rod, a round block, and a return spring in combination.

[0005] In actual use, the valve body blank may be offset by the reference surface due to casting or forging errors. Therefore, it is necessary to adjust the angle to compensate for the machining reference and ensure that the machining allowance is evenly distributed. If the tooling angle is not adjusted during the machining process, the tool path may be misaligned with the design reference, resulting in excessive cutting on one side and residual allowance on the other side.

[0006] Therefore, it is necessary to provide a valve body milling clamping fixture to solve the above problems.

[0007] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0008] Based on the above-mentioned problems in the existing technology, the problem to be solved by this application is to provide a valve body milling clamping fixture, which solves the problem that when the reference surface is offset, the tool path is misaligned with the design reference, resulting in excessive cutting on one side and residual material on the other side.

[0009] The technical solution adopted by this application to solve its technical problem is: a valve body milling clamping fixture, comprising:

[0010] A milling machine having a mounting plate;

[0011] A clamping mechanism, mounted on the placement plate, is used to stabilize the valve body during milling. The clamping mechanism includes:

[0012] The column is mounted on the placement plate;

[0013] Mounting housing, which is installed on the column bracket

[0014] Adjustment assembly, which is mounted on one side of the mounting housing, includes:

[0015] An arc-shaped gear is mounted on one side of the mounting housing;

[0016] A second motor is mounted on the placement plate;

[0017] A mounting base is installed on the placement plate;

[0018] A control gear is mounted between the fixed seats and is fixedly connected to the output end of the second motor.

[0019] A baffle is installed at both ends of the arc-shaped gear.

[0020] Furthermore, the control gear meshes with the arc-shaped gear.

[0021] Furthermore, a rotating shaft is rotatably mounted on the mounting housing, a large gear is fixedly mounted on the rotating shaft, a first motor is fixedly mounted at one end of the mounting housing, and a small gear is fixedly mounted at the output end of the first motor, the small gear meshing with the large gear.

[0022] Furthermore, a chuck is provided at the upper end of the rotating shaft.

[0023] Furthermore, the milling machine has a milling head.

[0024] The beneficial effects of this application are: the valve body milling clamping fixture provided by this application, by setting adjustment components, adjusts the angle of the workpiece, thereby achieving the effect of compensating for the machining datum.

[0025] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0027] In the attached diagram:

[0028] Figure 1 This is an overall schematic diagram of a valve body milling clamping fixture according to this application;

[0029] Figure 2 for Figure 1 Schematic diagram of the clamping mechanism;

[0030] Figure 3 for Figure 1 Exploded view of the clamping mechanism;

[0031] Figure 4 for Figure 3 Exploded view of the adjustment component;

[0032] The following are the labeling elements in the figure:

[0033] 1. Milling machine; 2. Milling head; 3. Placement plate; 4. Clamping mechanism; 40. Column; 41. Mounting housing; 42. Rotating shaft; 43. First motor; 44. Pinion; 45. Chuck; 46. Large gear; 47. Adjustment assembly; 470. Arc gear; 472. Second motor; 473. Control gear; 474. Baffle; 475. Fixed base. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0036] like Figure 1 As shown, this application provides a valve body milling clamping fixture, which is mainly installed on a milling device for clamping valve bodies. Specifically, the valve body milling clamping fixture includes a milling machine 1 installed inside the factory. The milling machine 1 is used for milling valve bodies. In this application, the milling machine 1 can be a five-axis milling machine in the prior art, and the milling machine 1 has a milling head 2. The milling head 2 is driven by the milling machine 1 to complete the milling operation of the valve body.

[0037] In order to facilitate the milling operation of the valve body, a placement plate 3 is provided at the lower end of the milling head 2. The placement plate 3 is fixedly installed on the milling machine 1 and is used to place the valve body to be milled.

[0038] like Figures 1-3 As shown, in order to keep the valve body stable during the milling process, a clamping mechanism 4 is provided on the placement plate 3. The clamping mechanism 4 has a chuck 45, which fixes the valve body to be milled so as to facilitate the subsequent milling operation of the valve body.

[0039] Meanwhile, the clamping mechanism 4 also includes columns 40 fixedly disposed on both sides of the placement plate 3, and a mounting shell 41 rotatably disposed between the columns 40. A rotating shaft 42 is rotatably disposed on the mounting shell 41, and a large gear 46 is fixedly disposed on the rotating shaft 42. A first motor 43 is fixedly disposed at one end of the mounting shell 41, and a small gear 44 is fixedly disposed at the output end of the first motor 43. The small gear 44 meshes with the large gear 46, so that when the first motor 43 is started, the small gear 44 can drive the large gear 46 to drive the rotating shaft 42 to rotate on the mounting shell 41.

[0040] Furthermore, the upper end of the rotating shaft 42 is fixedly connected to the lower end of the chuck 45, so that when the rotating shaft 42 rotates on the mounting housing 41, the chuck 45 can rotate synchronously.

[0041] To address the issue of uneven valve body surfaces encountered during milling, an adjustment assembly 47 is provided on the mounting housing 41, such as... Figures 1-2 and Figure 4 As shown, the adjustment component 47 adjusts the angle of the mounting housing 41, thereby adjusting the angle of the chuck 45 and the valve body to be milled on the chuck 45.

[0042] The adjustment assembly 47 includes an arc-shaped gear 470 fixedly disposed on one side of the mounting housing 41, so that rotating the arc-shaped gear 470 can drive the mounting housing 41 to rotate between the two sets of columns 40.

[0043] A second motor 472 is fixedly mounted on the placement plate 3, and two sets of fixing seats 475 are also fixedly mounted on the placement plate 3. A control shaft is rotatably connected between the two sets of fixing seats 475, and a control gear 473 is fixedly mounted on the control shaft. The output end of the second motor 472 is fixedly connected to the control shaft, so that starting the second motor 472 can drive the control gear 473 to rotate between the fixing seats 475.

[0044] At the same time, the control gear 473 meshes with the arc gear 470, thereby starting the second motor 472. The control gear 473 can drive the arc gear 470 to rotate the mounting shell 41 between the two sets of columns 40, thereby achieving the effect of changing the angle of the mounting shell 41.

[0045] Furthermore, baffles 474 are fixedly provided at both ends of the arc gear 470. The baffles 474 are used to make direct contact with the fixed seat 475 when the arc gear 470 moves to the end, thereby limiting the range of movement of the arc gear 470 and preventing the arc gear 470 from disengaging from the control of the control gear 473.

[0046] Before milling, the valve body to be milled is first fixed by the chuck 45, and then milling can be performed. When the angle of the valve body needs to be adjusted, the second motor 472 is started to drive the arc gear 470 through the control gear 473, which drives the mounting shell 41 and the chuck 45 set on the mounting shell 41 to rotate to the appropriate position, thereby driving the valve body on the chuck 45 to adjust, thus achieving the effect of adjusting the angle of the valve body. Finally, the first motor 43 is started to drive the chuck 45 to rotate, thereby driving the valve body on the chuck 45 to rotate and adjust, thus completing the adjustment of the valve body angle.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A valve body milling fixture, characterized by: include: A milling machine (1) having a placement plate (3); A clamping mechanism (4) is mounted on the placement plate (3) and is used to keep the valve body stable during milling. The clamping mechanism (4) includes: A column (40) is mounted on the placement plate (3); Mounting housing (41), which is mounted on the support of the column (40). An adjustment assembly (47) is mounted on one side of the mounting housing (41), the adjustment assembly (47) comprising: An arc-shaped gear (470) is mounted on one side of the mounting housing (41); A second motor (472) is mounted on the placement plate (3); A mounting base (475) is mounted on the placement plate (3); A control gear (473) is mounted between the fixed bases (475) and is fixedly connected to the output end of the second motor (472); A baffle (474) is installed at both ends of the arc-shaped gear (470).

2. The valve body milling fixture of claim 1, wherein: The control gear (473) meshes with the arc gear (470).

3. The valve body milling fixture of claim 1, wherein: A rotating shaft (42) is rotatably mounted on the mounting housing (41), and a large gear (46) is fixedly mounted on the rotating shaft (42). A first motor (43) is fixedly mounted on one end of the mounting housing (41), and a small gear (44) is fixedly mounted on the output end of the first motor (43). The small gear (44) meshes with the large gear (46).

4. The valve body milling fixture of claim 3, wherein: A chuck (45) is provided at the upper end of the rotating shaft (42).

5. The valve body milling clamping fixture according to claim 1, characterized in that: The milling machine (1) has a milling head (2).

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