An auxiliary positioning tool for a flange valve

Abstract

The utility model relates to a kind of auxiliary positioning tool for flange valve, it includes workbench, connecting sleeve, rotary table and two groups of clamping arms, two groups of the clamping arms are on the rotary table and move towards, clamping assembly is provided on the clamping arm, the clamping assembly includes clamping block one, clamping block two and hydraulic cylinder, the clamping block one and hydraulic cylinder are all fixedly connected on the clamping arm, the output end of the hydraulic cylinder connects the clamping block two, clamping block one and hydraulic cylinder are all fixedly connected on clamping arm, the output end of hydraulic cylinder connects clamping block two, hydraulic cylinder is started and drives the clamping block two of output end to move, realize the adjustment of the distance between clamping block two and clamping block one, to adapt to the flange valve of different size length, this mode is simple in operation and higher practicality.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings and fixtures, and in particular to an auxiliary positioning fixture for flange valves. Background Technology

[0002] In the fields of petrochemicals and shipbuilding, flange valves are key control components of pipeline systems. Their installation accuracy directly affects sealing performance and service life. Traditional flange valve positioning fixtures have the following technical pain points.

[0003] Existing positioning fixtures use a rigid, non-adjustable structure, and each fixture is only compatible with a single type of flange valve. In scenarios where valves of DN80-DN200 are mixed, 8-10 different special fixtures need to be changed frequently, resulting in wasted time. Traditional positioning fixtures mostly use a fixed base design, which cannot achieve fine adjustment of the flange circumferential angle. When connecting pipes with angular deviations, operators need to repeatedly disassemble and assemble the valve body, and actual measurements show that each interface consumes more manual adjustment time. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an auxiliary positioning fixture for flange valves.

[0005] The auxiliary positioning fixture for flange valves provided by this utility model adopts the following technical solution:

[0006] An auxiliary positioning fixture for a flange valve includes a worktable, a connecting sleeve, a turntable, and two sets of clamping arms. The two sets of clamping arms move toward each other on the turntable. Each clamping arm is provided with a clamping assembly, which includes a clamping block one, a clamping block two, and a hydraulic cylinder. Both the clamping block one and the hydraulic cylinder are fixed to the clamping arms, and the output end of the hydraulic cylinder is connected to the clamping block two.

[0007] Optionally, the clamping block is provided with inserts at both ends, and the clamping arm is provided with corresponding slots at its ends, and the inserts slide within the slots.

[0008] Optionally, the end of the clamping arm is connected to a slide table, and a slide groove is provided on the turntable. The slide table slides in the slide groove, and a two-way cylinder is provided in the turntable. The two output ends of the two-way cylinder are respectively connected to the slide table.

[0009] Optionally, a reinforcing rib is provided between the insert block and the clamping block 2.

[0010] Optionally, the turntable is rotatably connected to the workbench via the connecting sleeve, and a drive assembly is provided inside the workbench, which drives the turntable to rotate.

[0011] Optionally, a translation component is provided at the bottom of the worktable. The translation component includes a motor, a lead screw, and a slide bar. The translation component drives the worktable to move horizontally.

[0012] In summary, this utility model has at least one of the following beneficial technical effects:

[0013] 1. Both clamping block one and hydraulic cylinder are fixed to the clamping arm. The output end of the hydraulic cylinder is connected to clamping block two. When the hydraulic cylinder is started, it drives clamping block two at the output end to move, thereby adjusting the distance between clamping block two and clamping block one, thus adapting to flange valves of different sizes and lengths. This method is simple to operate and more practical.

[0014] 2. An insert block is provided at the end of the clamping block two, and a slot is provided at the end of the clamping arm. The insert block slides in the slot. This design can improve the stability when the hydraulic cylinder drives the clamping block two to move, ensuring that the clamping block two only moves in a straight line along the direction of the clamping arm, eliminating the spiral trajectory deviation of the traditional slide bar structure. At the same time, it ensures more stable clamping. A reinforcing rib is provided between the insert block and the clamping block two to further improve the clamping stability.

[0015] 3. The turntable achieves 360-degree continuous rotation through the worm gear transmission mechanism of the connecting sleeve and the worktable. With the help of an absolute encoder, the steering accuracy can be improved, solving the problem of low manual rotation accuracy of traditional tooling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an auxiliary positioning fixture used for flange valves.

[0017] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0018] Figure 3 This is a schematic diagram used to illustrate the clamp arm structure.

[0019] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Connecting sleeve; 3. Turntable; 4. Clamping arm; 5. Clamping assembly; 51. Clamping block one; 52. Clamping block two; 53. Hydraulic cylinder; 6. Insert block; 7. Slot; 8. Slide table; 9. Slide groove; 10. Reinforcing rib; 11. Motor; 12. Lead screw; 13. Slide rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] This utility model discloses an auxiliary positioning fixture for flange valves. (Refer to...) Figure 1-3 An auxiliary positioning fixture for flange valves includes a worktable 1, a connecting sleeve 2, a turntable 3, and two sets of clamping arms 4. The two sets of clamping arms 4 move towards each other on the turntable 3. Specifically, the ends of the clamping arms 4 are connected to slides 8. The turntable 3 has grooves 9, and the slides 8 slide within the grooves 9. A bidirectional cylinder is installed inside the turntable 3, and its two output ends are respectively connected to the slides 8. The spacing between the clamping arms 4 is adjusted by the symmetrical sliding of the slides 8 within the grooves 9 of the turntable 3. Compared with traditional bolt adjustment, this fixture is more efficient. The clamping arm is equipped with a clamping component 5, which includes a clamping block 1 51, a clamping block 2 52, and a hydraulic cylinder 53. Both the clamping block 1 51 and the hydraulic cylinder 53 are fixed to the clamping arm 4. The output end of the hydraulic cylinder 53 is connected to the clamping block 2 52. When the hydraulic cylinder 53 is activated, it drives the clamping block 2 52 at the output end to move, thereby adjusting the distance between the clamping block 2 52 and the clamping block 1 51, thus adapting to flange valves of different sizes and lengths. This method is simple to operate and more practical.

[0024] The clamping block 52 has an insert 6 at its end and a corresponding slot 7 at the end of the clamping arm. The insert 6 slides in the slot 7. This design improves the stability of the clamping block 52 when the hydraulic cylinder 53 moves it, ensuring that the clamping block 52 moves only in a straight line along the direction of the clamping arm 4, eliminating the spiral trajectory deviation of the traditional slide bar 13 structure. At the same time, it ensures more stable clamping. A reinforcing rib 10 is provided between the insert 6 and the clamping block 52 to further improve the clamping stability.

[0025] The turntable 3 is rotatably connected to the worktable 1 via the connecting sleeve 2. The worktable 1 is equipped with a drive assembly, which drives the turntable 3 to rotate. The bottom of the worktable 1 is equipped with a translation assembly, which includes a motor 11, a lead screw 12, and a slide bar 13. The translation assembly drives the worktable 1 to move horizontally. In this way, the turntable 3 can achieve 360-degree continuous rotation through the worm gear transmission mechanism of the connecting sleeve 2 and the worktable 1. With the help of an absolute encoder, the steering accuracy can be improved, solving the defect of low manual rotation accuracy of traditional tooling.

[0026] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An auxiliary positioning tool for a flanged valve, characterized in that: It includes a worktable (1), a connecting sleeve (2), a turntable (3) and two sets of clamping arms (4). The two sets of clamping arms (4) move towards each other on the turntable (3). A clamping assembly (5) is provided on the clamping arm (4). The clamping assembly (5) includes a clamping block one (51), a clamping block two (52) and a hydraulic cylinder (53). The clamping block one (51) and the hydraulic cylinder (53) are both fixed on the clamping arm (4). The output end of the hydraulic cylinder (53) is connected to the clamping block two (52).

2. An auxiliary positioning tool for a flanged valve as claimed in claim 1, characterized in that: The clamping block 2 (52) is provided with an insert (6) at its end, and the clamping arm (4) is provided with a corresponding slot (7) at its end, and the insert (6) slides in the slot (7).

3. An auxiliary positioning tool for a flanged valve as claimed in claim 1, characterized in that: The end of the clamping arm (4) is connected to a slide table (8), and a slide groove (9) is provided on the turntable (3). The slide table (8) slides in the slide groove (9). A two-way cylinder is provided in the turntable (3), and the two output ends of the two-way cylinder are respectively connected to the slide table (8).

4. An auxiliary positioning tool for a flanged valve as claimed in claim 2, characterized in that: A reinforcing rib (10) is provided between the insert block (6) and the clamping block 2 (52).

5. An auxiliary positioning tool for a flanged valve as defined in claim 1, wherein: The turntable (3) is rotatably connected to the workbench (1) via the connecting sleeve (2). The workbench (1) is equipped with a drive assembly, which drives the turntable (3) to rotate.

6. An auxiliary positioning tool for a flanged valve as defined in claim 1, characterized in that: The bottom of the worktable (1) is provided with a translation component, which includes a motor (11), a lead screw (12), and a slide bar (13). The translation component drives the worktable (1) to move horizontally.

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