A positioning fixture for milling a high-pressure active elbow

Abstract

The utility model relates to a kind of positioning fixture for high-pressure movable elbow hole milling, belong to high-pressure movable elbow clamping equipment technical field. Including bottom plate, positioning seat and support block, bottom plate one end is fixedly installed with positioning seat, first screw rod is symmetrically fixed on positioning seat, first screw rod is equipped with limiting assembly, bottom plate other end is fixedly installed with support block, support block top is provided with limiting clamping groove, let go of slot is set on the support block of limiting clamping groove side, limiting clamping groove corresponding support block is equipped with pressing assembly. In the first boss and the second boss of this positioning fixture are positioned to the one end head of high-pressure movable elbow, the circumference of this end head is limited by limiting half ring, and the other end of high-pressure movable elbow is locked by pressing half ring and limiting clamping groove, to realize the positioning and clamping fixation of this positioning fixture to high-pressure movable elbow, the positioning fixture effectively reduces artificial labor, solves the problem that the hole is skewed in the process of milling hole caused by the poor stability of present hand holding.

Description

Technical Field

[0001] This utility model relates to a positioning fixture for milling holes in high-pressure movable elbows, belonging to the technical field of high-pressure movable elbow clamping equipment. Background Technology

[0002] High-pressure swivel elbows are key components in fracturing manifold systems, primarily used for pipeline connections and deflections under high-pressure conditions. They feature flexible adjustment and quick connection. For assembly purposes, a mounting hole needs to be milled at one end of the high-pressure swivel elbow. Before milling, the high-pressure swivel elbow must be secured to ensure stability during subsequent milling.

[0003] The current method for fixing high-pressure flexible elbows mainly relies on manual support for stability. Specifically, two people are usually required to stand on either side of the high-pressure flexible elbow to prevent it from tilting. Then, a milling tool is used to mill the hole. However, the manual support by workers is labor-intensive. Furthermore, due to individual differences among workers, the stability of manual support is poor, which can easily lead to hole misalignment during the milling process. Therefore, it is necessary to improve this method. Summary of the Invention

[0004] The purpose of this utility model is to provide a positioning fixture for milling holes in high-pressure movable elbows, which effectively reduces the amount of manual labor and solves the problem of hole skew caused by poor stability of manual support during the milling process.

[0005] The technical solution of this utility model is as follows:

[0006] A positioning fixture for milling holes in high-pressure movable elbows includes a base plate, a positioning seat, and a support block. The base plate has a positioning seat fixedly installed at one end, and a first screw is symmetrically fixedly installed on the positioning seat. A limit component is mounted on the first screw. The support block has a limit groove on its top, a clearance slot on one side of the limit groove, and a clamping component is mounted on the support block corresponding to the limit groove.

[0007] The positioning seat is disc-shaped and is fixedly connected to the base plate by bolts. A first boss is provided on the upper surface of the positioning seat, and a second boss is provided on the upper surface of the first boss. The first boss and the second boss are both disc-shaped.

[0008] The limiting component includes a limiting half-ring, which is arc-shaped. Each end of the limiting half-ring has a first sliding hole, which is slidably connected to a first screw. An upper fixing nut is provided on the first screw above both ends of the limiting half-ring, and a lower fixing nut is provided on the first screw below both ends of the limiting half-ring.

[0009] The cross-section of the limiting slot is V-shaped.

[0010] The clamping assembly includes a second screw, which is symmetrically fixedly installed on the upper surface of the support block. A clamping half-ring is fitted on the second screw, and a locking nut is provided on the second screw above both ends of the clamping half-ring.

[0011] The clamping half-ring is Ω-shaped, and each end of the clamping half-ring is provided with a second sliding hole, which is slidably connected to the second screw.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] When using this positioning fixture for milling holes in high-pressure movable elbows, firstly, align one end of the high-pressure movable elbow with the first boss, so that the second boss is inserted into the port of one end of the high-pressure movable elbow. Then, the circumference of the high-pressure movable elbow contacts the limiting half-ring, which limits the circumference of one end of the high-pressure movable elbow. Next, align the circumference of the other end of the movable elbow with the limiting slot, so that the "V"-shaped limiting slot provides limiting support for the other end of the movable elbow. After the limiting support is formed, fit the clamping half-ring onto the second screw, so that the clamping half-ring contacts the circumference of the high-pressure movable elbow, and lock the clamping half-ring with a lock nut. Thus, the other end of the high-pressure movable elbow is locked by the cooperation of the clamping half-ring and the limiting slot of the support block. One end of the high-pressure movable elbow is positioned by a first boss and a second boss, and the circumference of this end is limited by a limiting half ring. The other end of the high-pressure movable elbow is locked by a pressing half ring and a limiting slot, thereby realizing the positioning and clamping fixation of the high-pressure movable elbow by the positioning fixture. This positioning fixture effectively reduces the amount of manual labor and solves the problem of hole skew caused by poor stability when manually supporting the elbow. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a front view structural diagram of the present utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the high-pressure movable elbow after it has been fixed according to this utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure from another perspective.

[0018] In the diagram: 1. Base plate; 2. Positioning seat; 3. Support block; 4. Assembly hole; 5. First boss; 6. Second boss; 7. First screw; 8. Limiting half ring; 9. Upper fixing nut; 10. Lower fixing nut; 11. Limiting slot; 12. Clearance slot; 13. Second screw; 14. Pressing half ring; 15. Locking nut; 16. High-pressure movable elbow. Detailed Implementation

[0019] As attached Figure 1-4 As shown

[0020] The positioning fixture for milling holes in high-pressure movable elbows includes a base plate 1, a positioning seat 2, and a support block 3. The base plate 1 is a rectangular plate with assembly holes 4 for assembly. During operation, the base plate 1 can be easily fixed in the milling machine tool through the assembly holes 4, so that the high-pressure movable elbow can be positioned and fixed in the subsequent process.

[0021] A positioning seat 2 is fixedly installed at one end of the base plate 1. The positioning seat 2 is disc-shaped and is fixedly connected to the base plate 1 by bolts. A first boss 5 is provided on the upper surface of the positioning seat 2. The first boss 5 is disc-shaped and has the same diameter as one end of the high-pressure movable elbow 16. A second boss 6 is provided on the upper surface of the first boss 5. The second boss 6 is disc-shaped and is inserted into one end of the high-pressure movable elbow 16. During operation, the positioning of one end of the high-pressure movable elbow 16 is achieved by the cooperation of the first boss 5 and the second boss 6.

[0022] Two first screws 7 are symmetrically fixed on the positioning seat 2. The first screws 7 are equipped with a limiting component, which includes a limiting half-ring 8. The limiting half-ring 8 is arc-shaped and has a first sliding hole at each end. The first sliding hole is slidably connected with the first screw 7. An upper fixing nut 9 is provided on the first screw 7 above both ends of the limiting half-ring 8, and a lower fixing nut 10 is provided on the first screw 7 below both ends of the limiting half-ring 8. During operation, the upper fixing nut 9 and the lower fixing nut 10 cooperate to fix the limiting half-ring 8, and then the limiting half-ring 8 is used to limit the circumference of the high-pressure movable elbow 16.

[0023] A support block 3 is fixedly installed at the other end of the base plate 1. The support block 3 is a rectangular block. A limit slot 11 is provided on the top of the support block 3. The limit slot 11 has a "V" shaped cross section. When working, the limit slot 11 can limit the circumference of the high-pressure movable elbow 16. The purpose of setting the limit slot 11 in a "V" shape is to facilitate the limit support of one end of the movable elbow.

[0024] A clearance slot 12 is provided on the support block 3 on one side of the limit slot 11. The clearance slot 12 is used to make clearance for one end of the high-pressure movable elbow 16.

[0025] The support block 3 corresponding to the limiting slot 11 is equipped with a clamping assembly, which includes a second screw 13. The second screw 13 is symmetrically fixedly installed on the upper surface of the support block 3. A clamping half ring 14 is fitted on the second screw 13. The clamping half ring 14 is shaped like an "Ω". The two ends of the clamping half ring 14 are respectively provided with second sliding holes. The second sliding holes are slidably connected with the second screw 13. Locking nuts 15 are provided on the second screw 13 above both ends of the clamping half ring 14. During operation, the clamping half ring 14 is locked by the locking nuts 15. The high-pressure movable elbow 16 is locked by the clamping half ring 14 so that the milling operation can be performed in the subsequent process.

[0026] When using this positioning fixture for milling holes in high-pressure movable elbows, firstly, one end of the high-pressure movable elbow 16 is aligned with the first boss 5. After the first boss 5 aligns with one end of the high-pressure movable elbow 16, the end of the elbow is then inserted into the second boss 6. At this time, the second boss 6 positions one end of the high-pressure movable elbow. The circumference of the high-pressure movable elbow 16 then contacts the limiting half-ring 8, which limits the circumference of one end of the high-pressure movable elbow 16, further assisting in the positioning of the high-pressure movable elbow 16.

[0027] Next, align the other end of the movable elbow with the limiting groove 11, so that the "V"-shaped limiting groove 11 provides limiting support for the other end of the high-pressure movable elbow.

[0028] After the limiting groove 11 forms a limiting support for the other end of the high-pressure movable elbow, the clamping half ring 14 is fitted with the second screw 13 through the second sliding hole, so that the clamping half ring 14 contacts the circumference of the high-pressure movable elbow 16. Then, a locking nut 15 is installed on each thread of the second screw 13, so that the locking nut 15 locks the two ends of the clamping half ring 14. Thus, under the pressure generated at both ends of the clamping half ring 14, the other end of the high-pressure movable elbow 16 is locked by the mutual cooperation between the clamping half ring 14 and the limiting groove 11 of the support block 3.

[0029] Finally, one end of the high-pressure movable elbow 16 is positioned by the first boss 5 and the second boss 6 of the positioning clamp, and the circumference of the end is assisted by the limiting half ring 8. The other end of the high-pressure movable elbow 16 is locked by the pressing half ring 14 and the limiting slot 11, thereby realizing the positioning and clamping fixation of the high-pressure movable elbow 16 by the positioning clamp. The positioning clamp effectively reduces the amount of manual labor and solves the problem of hole skew caused by poor stability when manually supporting the hole during the milling process.

Claims

1. A positioning fixture for milling holes in high-pressure movable elbows, comprising a base plate (1), a positioning seat (2), and a support block (3), characterized in that: A positioning seat (2) is fixedly installed at one end of the base plate (1). A first screw (7) is symmetrically fixed on the positioning seat (2). A limit component is installed on the first screw (7). A support block (3) is fixedly installed at the other end of the base plate (1). A limit slot (11) is provided on the top of the support block (3). A clearance slot (12) is provided on the support block (3) on one side of the limit slot (11). A clamping component is installed on the support block (3) corresponding to the limit slot (11).

2. A positioning fixture for milling holes in high-pressure movable elbows according to claim 1, characterized in that: The positioning seat (2) is disc-shaped and is fixedly connected to the base plate (1) by bolts. The upper surface of the positioning seat (2) is provided with a first boss (5) and the upper surface of the first boss (5) is provided with a second boss (6). The first boss (5) and the second boss (6) are disc-shaped.

3. A positioning fixture for milling holes in high-pressure movable elbows according to claim 1, characterized in that: The limiting component includes a limiting half ring (8), which is arc-shaped. The limiting half ring (8) has a first sliding hole at each end. The first sliding hole is slidably connected with the first screw (7). An upper fixing nut (9) is provided on the first screw (7) above both ends of the limiting half ring (8), and a lower fixing nut (10) is provided on the first screw (7) below both ends of the limiting half ring (8).

4. A positioning fixture for milling holes in high-pressure movable elbows according to claim 1, characterized in that: The limiting slot (11) has a "V" shaped cross section.

5. A positioning fixture for milling holes in high-pressure movable elbows according to claim 1, characterized in that: The clamping assembly includes a second screw (13), which is symmetrically fixed on the upper surface of the support block (3). A clamping half ring (14) is fitted on the second screw (13), and a locking nut (15) is provided on the second screw (13) above both ends of the clamping half ring (14).

6. A positioning fixture for milling holes in high-pressure movable elbows according to claim 5, characterized in that: The clamping half ring (14) is shaped like an "Ω". The two ends of the clamping half ring (14) are respectively provided with second sliding holes, which are slidably connected to the second screw (13).

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