Four-station positioning auxiliary device for valve plate shaft hole machining

Abstract

The utility model discloses a four-station positioning auxiliary device for valve plate shaft hole machining, which comprises a base used for being assembled with valve plate shaft hole machining equipment, and a plate seat is vertically arranged on the upper surface of the base. The two side faces of the plate base are each provided with two workpiece containing grooves which are longitudinally arranged, matched with the valve plates and used for containing the valve plates and enabling shaft bases on the valve plates to be arranged outwards. A pressing plate mechanism used for pressing the valve plate contained in the workpiece containing groove and an anti-rotation mechanism used for abutting against a shaft seat of the valve plate to prevent the valve plate from rotating are further arranged on the two side faces of the plate seat correspondingly. Through the workpiece containing groove, the pressing plate mechanism and the anti-rotation mechanism, valve plate shaft holes in the four valve plates can be machined at the same time, the machining efficiency of the valve plate shaft holes is greatly improved, the valve plates are stably positioned, and the machining precision of the valve plate shaft holes can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning auxiliary devices, and particularly relates to a four-station positioning auxiliary device for machining valve plate shaft holes. Background Art

[0002] In a valve, a valve plate generally refers to a component for controlling fluid flow. A shaft seat is arranged on one side of the valve plate, and a valve plate shaft hole is a hole opened in the shaft seat for installing a valve stem. The opening and closing of the valve are achieved by the rotation or movement of the valve stem, and the design and machining accuracy of the valve plate shaft hole directly affect the overall performance and service life of the valve.

[0003] When machining a valve plate shaft hole, existing valve plate shaft hole machining equipment needs to use a positioning auxiliary device to position the valve plate and avoid deviation in the machining of the valve plate shaft hole. However, most existing positioning auxiliary devices are single-station tooling for machining valve plate shaft holes, which restricts the development of valve plate shaft hole machining equipment, making the existing valve plate shaft hole machining equipment capable of machining only one valve plate shaft hole on one valve plate at a time, with low efficiency. Therefore, it is an urgent problem for those skilled in the art at present to provide a multi-station positioning auxiliary device for machining valve plate shaft holes, thereby improving the machining efficiency of valve plate shaft holes. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a four-station positioning auxiliary device for machining valve plate shaft holes, which can realize the positioning of multiple valve plates, thereby completing the machining of valve plate shaft holes on multiple valve plates at one time, with high machining efficiency.

[0005] To solve the above technical problems, the following technical solutions are adopted in the utility model.

[0006] The four-station positioning auxiliary device for machining valve plate shaft holes includes a base for assembling with valve plate shaft hole machining equipment. Among them, a plate seat is vertically arranged on the upper surface of the base, and two longitudinal workpiece placement grooves that are arranged in parallel and adapted to the valve plate are respectively opened on two side surfaces of the plate seat for accommodating the valve plate and making the shaft seat on the valve plate face outward; pressing plate mechanisms for pressing the valve plate accommodated in the workpiece placement groove and anti-rotation mechanisms for resisting the shaft seat of the valve plate to prevent the valve plate from rotating are respectively arranged on two side surfaces of the plate seat.

[0007] Preferably, a plurality of mounting screw holes are respectively opened on two side surfaces of the plate seat around the workpiece placement groove.

[0008] Preferably, the pressing plate mechanism includes a pressing plate with a through hole, and a pressing bolt that passes through the through hole of the pressing plate and is threadedly connected with the mounting screw hole to press the valve plate and fix the valve plate tightly.

[0009] Preferably, the anti-rotation mechanism includes a support seat disposed on the side surface of the plate seat and located between two workpiece placement grooves. The upper and lower ends of the support seat are threadedly connected through longitudinally opened connecting screw holes with a shaft seat for pressing against the valve plate to prevent the valve plate from rotating, namely a positioning screw.

[0010] Preferably, a plurality of threaded through holes are circumferentially formed along the edge of the base for threadedly connecting and assembling bolts to fix the device on the valve plate shaft hole processing equipment.

[0011] Due to the adoption of the above technical solutions, the technical progress obtained by the present utility model is as follows.

[0012] By providing the workpiece placement grooves, the pressing plate mechanism and the anti-rotation mechanism, the present utility model can not only simultaneously process the valve plate shaft holes on four valve plates, greatly improving the processing efficiency of the valve plate shaft holes, but also has stable valve plate positioning, ensuring the processing accuracy of the valve plate shaft holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a structural schematic diagram of the present utility model;

[0014] Figure 2 is a structural schematic diagram of the base and the plate seat of the present utility model.

[0015] Wherein: 1. Base, 11. Threaded through hole, 2. Plate seat, 21. Workpiece placement groove, 22. Mounting screw hole, 3. Pressing plate mechanism, 31. Pressing plate, 32. Compression bolt, 4. Anti-rotation mechanism, 41. Support seat, 42. Positioning screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] A four-station positioning auxiliary device for processing valve plate shaft holes, in combination with Figures 1 to 2 as shown, includes a base 1 and a plate seat 2, and the plate seat 2 is erected on the upper surface of the base 1.

[0018] Two workpiece placement grooves 21 are respectively provided on the two side surfaces of the plate seat 2, forming four workstations. The workpiece placement grooves 21 on the same side are arranged longitudinally, and the workpiece placement grooves 21 on different sides are symmetrically provided. The workpiece placement groove 21 is adapted to the valve plate, and the workpiece placement groove 21 is used to accommodate the valve plate, and after the valve plate is placed in the workpiece placement groove 21, the shaft seat on the valve plate is arranged outward. A pressure plate mechanism 3 and an anti-rotation mechanism 4 are also respectively provided on the two side surfaces of the plate seat 2, wherein the pressure plate mechanism 3 is used to press the valve plate accommodated in the workpiece placement groove 21, so as to fix the valve plate in the workpiece placement groove 21; the anti-rotation mechanism 4 is used to resist the shaft seat of the valve plate, so as to prevent the valve plate from rotating when the valve plate shaft hole is processed. The pressure plate mechanism 3 and the anti-rotation mechanism 4 work together to realize the positioning of the valve plate, thereby ensuring the accuracy of the shaft hole processing.

[0019] Specifically, a plurality of mounting screw holes 22 are respectively provided on the two side surfaces of the plate seat 2, and the plurality of mounting screw holes 22 are located around the workpiece placement groove 21. The pressing plate mechanism 3 includes a pressing plate 31, and a through hole is provided on the pressing plate 31. A clamping bolt 32 is passed through the through hole of the pressing plate 31, and the clamping bolt 32 is threadedly connected with the mounting screw hole 22. When in use, the clamping bolt 32 is rotated to make the pressing plate 31 press the valve plate, thereby pressing and fixing the valve plate in the workpiece placement groove 21.

[0020] The anti-rotation mechanism 4 includes a support 41, which is arranged on the side of the plate seat 2 and between the two workpiece placement grooves 21. The upper and lower ends of the support 41 are provided with longitudinally opened connecting screw holes, and the support 41 is threadedly connected to a positioning screw 42 through the connecting screw holes. When in use, the positioning screw 42 is rotated to make the positioning screw 42 abut against the shaft seat of the valve plate, thereby preventing the valve plate from rotating.

[0021] The base 1 is provided with a plurality of threaded through holes 11 along the circumference of the edge, and the threaded through holes 11 are used for threaded connection with assembly bolts, so that the base 1 and the valve plate shaft hole processing equipment are assembled through the assembly bolts, so that the device is fixed on the valve plate shaft hole processing equipment.

[0022] When the utility model is in use, four valve plates are respectively placed in the workpiece placement groove 21 and the shaft seats on the valve plates are arranged outward, and the four valve plates are pressed and fixed by the pressing plate mechanism 3; the shaft seats of the valve plates are supported by the anti-rotation mechanism 4 to prevent the valve plates from rotating when the valve plate shaft holes are processed.

Claims

1. A four-station positioning auxiliary device for valve plate shaft hole processing, comprising a base (1) for assembly with a valve plate shaft hole processing device, characterized in that: A plate seat (2) is vertically arranged on the upper surface of the base (1), and two side surfaces of the plate seat (2) are respectively provided with two workpiece placement grooves (21) arranged longitudinally and adapted to the valve plate and used to accommodate the valve plate and to arrange the shaft seat on the valve plate outward; the two side surfaces of the plate seat (2) are also respectively provided with a pressing plate mechanism (3) for pressing the valve plate accommodated in the workpiece placement groove (21) and an anti-rotation mechanism (4) for abutting against the shaft seat of the valve plate to prevent the valve plate from rotating.

2. The four-station positioning auxiliary device for machining the valve plate shaft hole according to claim 1, characterized in that: The two side surfaces of the plate seat (2) are respectively provided with a plurality of mounting screw holes (22) located around the workpiece placement groove (21).

3. The four-station positioning auxiliary device for machining the valve plate shaft hole according to claim 2, characterized in that: The pressure plate mechanism (3) comprises a pressure plate (31) with a through hole, and a clamping bolt (32) is provided in the through hole of the pressure plate (31) and is threadedly connected to the mounting screw hole (22) so that the pressure plate (31) can press the valve plate to tighten and fix the valve plate.

4. The four-station positioning auxiliary device for machining the valve plate shaft hole according to claim 1, characterized in that: The anti-rotation mechanism (4) comprises a support (41) arranged on the side of the plate seat (2) and located between the two workpiece placement grooves (21), and the upper and lower ends of the support (41) are threadedly connected to a positioning screw (42) for resisting against the shaft seat of the valve plate to prevent the valve plate from rotating through a longitudinally opened connecting screw hole.

5. The four-station positioning auxiliary device for machining the valve plate shaft hole according to claim 1, characterized in that: The base (1) is provided with a plurality of threaded through holes (11) along the circumferential direction of the edge for threaded connection with assembly bolts to fix the device on the valve plate shaft hole processing equipment.

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