Positioning structure for multi-surface machining of ball valve

Abstract

The utility model relates to the technical field of ball valve machining, in particular to a ball valve multi-face machining positioning structure which comprises a positioning table, sliding tables are movably installed on the two sides of the top end of the positioning table, chucks are fixedly connected to the middles of the top ends of the sliding tables, and clamping mechanisms are arranged between the positioning table and the sliding tables. Vertical racks are fixedly installed at the two ends of the right side of the positioning table, a transverse sliding rail is fixedly installed between the top ends of the two racks, and a pressing mechanism is arranged on the front face of the sliding rail. According to the utility model, the external expansion type clamping mechanism is adopted, so that the chuck is outwards propped against and clamped from the inner side of the flange, the outer end surface of the flange is ensured to be completely exposed, the problem of interference of a traditional internal support type clamping structure on a cutter path is effectively avoided, and the barrier-free processing of the end surfaces of the flanges on the two sides is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve processing technical field, concretely is a ball valve multi -surface processing positioning structure. BACKGROUND

[0002] As the key control component in industrial pipeline system, the machining precision of the flange end face of the ball valve directly influences the sealing performance and service life. In the ball valve manufacturing process, the flange end face of the valve body two ends usually needs to be milled, drilled and processed in multiple processes.

[0003] In the prior art, the common ball valve processing positioning device usually adopts an inner support type clamping structure, that is, radial clamping is carried out from the inner side of the flange. Although this method can realize basic positioning, when the flange end face is processed, the clamping mechanism is easy to interfere with the tool path, resulting in the need to adjust the clamping position multiple times in the processing process, which seriously affects the processing efficiency and precision. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a ball valve multi -surface processing positioning structure to solve the problems in the above background.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] A ball valve multi -surface processing positioning structure comprises

[0007] A positioning table is provided with a clamping mechanism between the positioning table and the sliding table.

[0008] Two vertical racks are fixedly installed at the right side of the two ends of the positioning table, a horizontal sliding rail is fixedly installed between the top ends of the two racks, and a pressing mechanism is arranged on the front face of the sliding rail.

[0009] Preferably, the clamping mechanism comprises a guide groove, the guide groove is arranged on the top middle part of the positioning table, a bidirectional screw rod is movably installed in the guide groove, a movable block one is fixedly connected with the bidirectional screw rod at the bottom middle part of the sliding table, a motor one is fixedly installed at the right middle part of the positioning table, and the output shaft of the motor one is coaxially connected with the bidirectional screw rod.

[0010] Preferably, the clamping head is a V-shaped groove structure.

[0011] Preferably, the pressing mechanism comprises a screw rod, the screw rod is movably installed in the middle part of the sliding rail through a bearing, a movable block two is threadedly connected with the outside of the screw rod, a horizontal plate is fixedly connected with the front face of the movable block two, a vertical electric push rod is fixedly installed at the top end of the side away from the sliding rail of the horizontal plate, and a pressing plate is fixedly installed at the output shaft end of the electric push rod.

[0012] Preferably, the inner upper end of the left side of the rack is fixedly provided with a transverse motor two, and the output shaft of the motor two is coaxially connected with the screw rod.

[0013] Preferably, vertical supporting legs are fixedly arranged at the bottom of the positioning table, and antiskid rubber pads are fixedly connected to the lower ends of the supporting legs.

[0014] Compared with the prior art, the ball valve multi-surface machining positioning structure has the following beneficial effects:

[0015] 1. The ball valve multi-surface machining positioning structure adopts an outward expansion type clamping mechanism, the chuck abuts and clamps from the inside to the outside of the flange, the outer end surface of the flange is completely exposed, the interference problem of the tool path caused by the traditional inward supporting type clamping structure is effectively avoided, and therefore, the flange end surfaces on both sides are machined without any obstacles.

[0016] 2. The ball valve multi-surface machining positioning structure is provided with a transversely adjustable pressing mechanism, the middle flange position of the ball valve of different specifications can be flexibly adjusted, the three-point positioning structure is always in the best stress state, and the adaptability of the equipment to ball valves of different types is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a whole front view structural schematic diagram of the utility model;

[0018] Fig. 2 It is a ball valve body positioning schematic diagram of the utility model;

[0019] Fig. 3 It is a motor two installation schematic diagram of the utility model.

[0020] In the drawing: 1, positioning table; 2, sliding table; 3, chuck; 4, rack; 5, sliding rail; 6, guide groove; 7, bidirectional screw rod; 8, movable block one; 9, motor one; 10, screw rod; 11, movable block two; 12, cross plate; 13, electric push rod; 14, pressing plate; 15, motor two; 16, supporting leg; 17, ball valve body. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] As shown in the drawing, Figs. 1-3 A technical solution provided by the utility model is provided.

[0023] A ball valve multi-surface machining positioning structure, including a positioning table 1, vertical supports 16 are fixedly installed at the bottom of the four corners of the positioning table 1, anti-skid rubber pads are fixedly connected to the lower ends of the supports 16, sliding tables 2 are movably installed at the top of the positioning table 1, clamps 3 are fixedly connected to the middle of the top of the sliding tables 2, the clamps 3 are V-shaped groove structures, a clamping mechanism is arranged between the positioning table 1 and the sliding table 2, the clamping mechanism includes guide grooves 6, the guide grooves 6 are arranged at the middle of the top of the positioning table 1, bidirectional lead screws 7 are movably installed in the guide grooves 6, movable blocks one 8 are fixedly connected to the middle of the bottom of the sliding table 2 and are in threaded connection with the bidirectional lead screws 7, a motor one 9 is fixedly installed at the middle of the right side of the positioning table 1, and an output shaft of the motor one 9 is coaxially connected with the bidirectional lead screw 7;

[0024] In the embodiment, the clamps abut and clamp from the inside to the outside of the flanges by adopting the outward expansion type clamping mechanism, the outer end surfaces of the flanges are completely exposed, the interference problem of the tool path caused by the traditional inward expansion type clamping structure is effectively avoided, and therefore, the unobstructed machining of the end surfaces of the flanges on both sides is realized.

[0025] As shown in Fig. 2 two vertical racks 4 are fixedly installed at the right ends of the positioning table 1, a horizontal slide rail 5 is fixedly installed between the top ends of the two racks 4, a pressing mechanism is arranged on the front of the slide rail 5, the pressing mechanism includes a screw rod 10, the screw rod 10 is movably installed in the middle of the slide rail 5 through a bearing, movable blocks two 11 are in threaded connection with the outside of the screw rod 10, a horizontal plate 12 is fixedly connected to the front of the movable blocks two 11, a vertical electric push rod 13 is fixedly installed at the top end of the side, away from the slide rail 5, of the horizontal plate 12, a pressing plate 14 is fixedly installed at the output shaft end of the electric push rod 13, a horizontal motor two 15 is fixedly installed at the upper end in the inside of the left rack 4, and an output shaft of the motor two 15 is coaxially connected with the screw rod 10;

[0026] In the embodiment, the pressing mechanism can be adjusted horizontally, the middle flange positions of ball valves of different specifications can be flexibly adjusted, the three-point positioning structure is always in the best stress state, and the adaptability of the equipment to ball valves of different types is greatly improved.

[0027] Working principle: first, the ball valve body 17 to be processed is placed on the positioning table 1, so that the flange structures at both ends thereof are respectively located at the outer side positions of the two V-shaped groove clamps 3; the motor one 9 is started to drive the bidirectional screw rod 7 to rotate, so that the two movable blocks one 8 are moved in opposite directions in the guide groove 6 (i.e. the left movable block moves to the left and the right movable block moves to the right) through threaded transmission, the two slide tables 2 are synchronously moved to the outer side, so that the outer end faces of the clamps 3 are expanded outward and abut against the end faces of the flange structures on the side of the valve body, and the outer end faces of the flange structures are completely exposed for machining; in order to enhance the positioning stability, the electric push rod 13 is started to drive the pressing plate 14 to descend, so that the pressing plate 14 is pressed against the upper end face of the flange at the top of the middle part of the ball valve body 17, and a three-point positioning structure is formed with the two clamps 3; when different types of ball valves need to be adapted, the motor two 15 is started to drive the screw rod 10 to rotate to adjust the horizontal position of the pressing plate 14.

[0028] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A multi-faceted machining and positioning structure for a ball valve, characterized in that: include Positioning platform (1), with sliding platforms (2) movably installed on both sides of the top of the positioning platform (1), and a clamp (3) fixedly connected to the middle of the top of the sliding platform (2), and a clamping mechanism is provided between the positioning platform (1) and the sliding platform (2). Vertical frames (4) are fixedly installed at both ends of the right side of the positioning platform (1), and a horizontal slide rail (5) is fixedly installed between the tops of the two frames (4). A pressing mechanism is provided on the front of the slide rail (5).

2. The multi-faceted machining and positioning structure for a ball valve according to claim 1, characterized in that: The clamping mechanism includes guide grooves (6), and guide grooves (6) are opened on both sides of the top center of the positioning table (1). A bidirectional lead screw (7) is movably installed inside the two guide grooves (6). A movable block (8) that is threadedly connected to the bidirectional lead screw (7) is fixedly connected to the bottom center of the sliding table (2). A motor (9) is fixedly installed on the right center of the positioning table (1). The output shaft of the motor (9) is coaxially connected to the bidirectional lead screw (7).

3. The multi-faceted machining and positioning structure for a ball valve according to claim 2, characterized in that: The chuck (3) has a V-groove structure.

4. The multi-faceted machining and positioning structure for a ball valve according to claim 1, characterized in that: The clamping mechanism includes a screw (10), which is movably mounted in the middle of the slide rail (5) via a bearing. The screw (10) is connected to a movable block two (11) by an external thread. A horizontal plate (12) is fixedly connected to the front of the movable block two (11). A vertical electric push rod (13) is fixedly mounted on the top of the side of the horizontal plate (12) away from the slide rail (5). A pressure plate (14) is fixedly mounted on the output shaft end of the electric push rod (13).

5. The multi-faceted machining and positioning structure for a ball valve according to claim 4, characterized in that: A horizontal motor 2 (15) is fixedly installed at the upper inside of the frame (4) on the left side. The output shaft of the motor 2 (15) is coaxially connected to the screw (10).

6. The multi-faceted machining and positioning structure for a ball valve according to claim 1, characterized in that: Vertical support legs (16) are fixedly installed at the four corners of the bottom of the positioning platform (1), and anti-slip rubber pads are fixedly connected to the lower end of the support legs (16).

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