Fixture for boring sensor valve body

Abstract

This utility model discloses a jig for boring a sensor valve body, relating to the technical field of boring jigs. The purpose of this utility model is to solve the problem of the lack of a jig specifically designed for boring processes of sensor valve bodies. This utility model includes a shaft end plate and a positioning plate. The shaft end plate and the positioning plate are connected by two parallel side plates. The workpiece to be processed is clamped between the shaft end plate and the positioning plate. The workpiece is coaxially arranged with both the shaft end plate and the positioning plate. A clamping screw is threaded onto the shaft end plate, and the clamping screw abuts against one end of the workpiece. An avoidance hole for avoiding the boring tool is provided on the positioning plate.

Description

Technical Field

[0001] This utility model relates to the technical field of boring fixtures, specifically to a fixture for boring a sensor valve body. Background Technology

[0002] The manufacturing process of a sensor valve body involves multiple steps, including finishing and boring of the outer surface of the valve body. After finishing the outer surface of the valve body, it is no longer possible to use a fixture to hold it, which can easily cause scratches on the surface.

[0003] In the existing technology, clamping devices are usually used to clamp the valve body during the boring process. However, due to the lack of special tools, the clamping process is relatively complicated and the clamping accuracy is low. Utility Model Content

[0004] To address the aforementioned problem—the lack of a dedicated fixture for boring sensor valve bodies—this invention proposes a fixture for boring sensor valve bodies. The fixture includes a shaft end plate and a positioning plate. The shaft end plate and the positioning plate are connected by two parallel side plates. The workpiece to be processed is held between the shaft end plate and the positioning plate. The workpiece is coaxially arranged with both the shaft end plate and the positioning plate. A clamping screw is threaded onto the shaft end plate, and the clamping screw abuts against one end of the workpiece. The positioning plate has clearance holes to avoid the boring tool.

[0005] A further feature of this invention is that a pressure pad is provided between the clamping screw and the workpiece, and a protrusion is provided on the side surface of the pressure pad near the workpiece. The protrusion is adapted to the port of the workpiece for insertion into the port of the workpiece.

[0006] A further feature of this invention is that the positioning plate includes an outer ring, a mounting hole is provided at the center of the outer ring, a stop is provided at one end of the mounting hole near the workpiece, a mandrel is coaxially mounted in the mounting hole, an outward flange adapted to the stop is provided at one end of the mandrel near the workpiece, and an clearance hole is provided on the mandrel.

[0007] A further feature of this invention is that a positioning ring is provided at one end of the mandrel near the workpiece, and the positioning ring is adapted to the annular groove on the workpiece.

[0008] A further feature of this invention is that the shaft end plate and the positioning plate are provided with corresponding mounting grooves for mounting the side plate.

[0009] The beneficial effects of this utility model are as follows:

[0010] The workpiece can be quickly clamped by the combination of the shaft end plate, the positioning plate and the clamping screw, and the workpiece can be quickly positioned by the combination of the pressure pad and the mandrel, making the clamping more accurate. Attached Figure Description

[0011] Figure 1 A schematic diagram of the structure of this utility model is shown.

[0012] Figure 2 The front view of this utility model is shown.

[0013] Figure 3 An exploded view of this invention is shown.

[0014] Figure 4 It shows Figure 1 A cross-sectional view along the AA direction.

[0015] Reference numerals: 1. Shaft end plate; 11. Clamping screw; 2. Positioning plate; 21. Mandrel; 211. Clearance hole; 212. Positioning ring; 3. Side plate; 4. Workpiece; 41. Ring groove; 5. Pressure pad; 51. Protrusion. Detailed Implementation

[0016] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] refer to Figure 1 , 2 This utility model proposes a fixture for boring a sensor valve body, which includes a shaft end plate 1 and a positioning plate 2. The shaft end plate and the positioning plate 2 are connected by two side plates 3. The two side plates 3 are arranged parallel to each other, and the two ends of the side plates 3 are respectively connected to the shaft end plate and the positioning plate 2 by bolts.

[0018] refer to Figure 3 , 4 The workpiece 4 to be processed is held between the shaft end plate 1 and the positioning plate 2. The workpiece 4 is a sensor valve body. The workpiece 4 is coaxially arranged with both the shaft end plate 1 and the positioning plate 2. A clamping screw 11 is threadedly connected to the center of the shaft end plate 1. The two ends of the clamping screw 11 are respectively located on both sides of the shaft end plate 1. One end of the clamping screw 11 abuts against the workpiece 4, that is, the clamping screw 11 can achieve the clamping effect on the workpiece 4 by rotating it. The positioning plate 2 is coaxially provided with a clearance hole 211. The clearance hole 211 is used to avoid the boring hole, so that the boring hole can pass through the clearance hole 211 and contact the workpiece 4, thereby achieving the purpose of boring.

[0019] It should be noted that the end of the clamping screw 11 closest to the workpiece 4 is designed to be arc-shaped in order to reduce the frictional force when the clamping screw 11 rotates.

[0020] A pressure pad 5 is provided between the clamping screw 11 and the workpiece 4. A protrusion 51 is provided on the surface of the pressure pad 5 closest to the workpiece 4. The protrusion 51 is adapted to the port of the workpiece 4, that is, the diameter of the protrusion 51 is the same as the inner diameter of the port of the workpiece 4, so that the protrusion 51 can be inserted into the port of the workpiece 4. The diameter of the pressure pad 5 is larger than the outer diameter of the port of the workpiece 4, so as to achieve the purpose of tightening with the workpiece 4. The arc-shaped end of the clamping screw 11 abuts against the surface of the pressure pad 5 away from the protrusion 51, thereby enabling the clamping screw 11 to tighten the workpiece 4 by pressing against the pressure pad 5.

[0021] The positioning plate 2 includes an outer ring with a mounting hole at its center. A stop is provided at the end of the mounting hole near the workpiece 4. A mandrel 21 is coaxially mounted within the mounting hole. The end of the mandrel 21 near the workpiece 4 has an integrally formed outwardly flange that matches the stop. Therefore, when the workpiece 4 is clamped, the mandrel 21 can abut against the workpiece 4, generating a reaction force to clamp the workpiece 4. A clearance hole 211 is provided on the mandrel 21.

[0022] The mandrel 21 has an integrated positioning ring 212 at one end near the workpiece 4. The positioning ring 212 protrudes and is adapted to the annular groove 41 on the workpiece 4. During clamping, the positioning ring 212 and the annular groove 41 are engaged to further achieve precise centering and positioning of the workpiece 4.

[0023] Mounting grooves are provided on the side surfaces of the shaft end plate 1 and the positioning plate 2 that are close to each other, and two grooves are provided on each side plate 1. The mounting grooves on the shaft end plate 1 and the positioning plate 2 are arranged correspondingly to each other for mounting the side plate 3. Both sides of the side plate 3 are connected to the mounting grooves by bolts. The workpiece 4 is placed between the two side plates 3.

[0024] It should be noted that when installing workpiece 4, the connecting flange plate on workpiece 4 should be tightly attached to the side plate 3 below. This can limit the axial rotation of workpiece 4 and prevent workpiece 4 from rotating and displacing when the clamping screw 11 is rotated, thus affecting the accuracy.

[0025] In summary, this utility model can achieve rapid clamping of workpiece 4 through the cooperation of shaft end plate 1, positioning plate 2 and clamping screw 11, and can achieve rapid positioning of workpiece 4 through the cooperation of pressure pad 5 and mandrel 21, making clamping more accurate.

[0026] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0027] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0030] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A fixture for boring a sensor valve body, characterized in that: It includes a shaft end plate (1) and a positioning plate (2). The shaft end plate (1) and the positioning plate (2) are connected by two parallel side plates (3). The shaft end plate (1) and the positioning plate (2) hold the workpiece (4) to be processed. The workpiece (4) is coaxially arranged with the shaft end plate (1) and the positioning plate (2). A clamping screw (11) is threaded on the shaft end plate (1). The clamping screw (11) abuts against one end of the workpiece (4). The positioning plate (2) is provided with a clearance hole (211) to avoid the boring tool.

2. The fixture for boring a sensor valve body according to claim 1, characterized in that: A pressure pad (5) is provided between the clamping screw (11) and the workpiece (4). A protrusion (51) is provided on the side surface of the pressure pad (5) near the workpiece (4). The protrusion (51) is adapted to the port of the workpiece (4) for insertion into the port of the workpiece (4).

3. The fixture for boring a sensor valve body according to claim 1, characterized in that: The positioning plate (2) includes an outer ring, and an installation hole is provided at the center of the outer ring. A stop is provided at one end of the installation hole near the workpiece (4). A mandrel (21) is coaxially installed in the installation hole. An outer flange that matches the stop is provided at one end of the mandrel (21) near the workpiece (4). An avoidance hole (211) is provided on the mandrel (21).

4. The fixture for boring a sensor valve body according to claim 3, characterized in that: The mandrel (21) is also provided with a positioning ring (212) at one end near the workpiece (4), and the positioning ring (212) is adapted to the annular groove (41) on the workpiece (4).

5. The fixture for boring a sensor valve body according to claim 1, characterized in that: The shaft end plate (1) and the positioning plate (2) are provided with corresponding mounting grooves for mounting the side plate (3).

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