Flange end face punching fixing jig

Abstract

The application belongs to the field of mechanical processing and specifically discloses a flange end face punching fixing jig, which comprises a lower supporting assembly, an internal supporting assembly and an upper supporting assembly, the upper side of the lower supporting assembly is fixedly connected with the lower side of the internal supporting assembly, the internal supporting assembly is connected with the upper supporting assembly through a connecting assembly, the lower supporting assembly comprises a lower cover, the shape of the lower cover is cylindrical, the internal supporting assembly comprises an internal supporting block, the shape of the internal supporting block is cylindrical, the internal supporting block is coaxially arranged with the lower cover, and the upper supporting assembly comprises an upper disc; the lower supporting assembly and the upper supporting assembly are adopted to clamp the front and back directions of the flange, and the internal supporting assembly is adopted to support and position the inner side of the flange, so that the flange can be fixed in multiple directions before drilling operation, and the problem that the flange is difficult to fix during drilling is solved.

Description

Technical Field

[0001] This application belongs to the field of machining, specifically a flange end face drilling and fixing fixture. Background Technology

[0002] A flange is a disc-shaped or ring-shaped part used to connect pipes, valves, pumps, equipment or other mechanical components. It is usually fixed by bolts, welding or other methods, and serves to seal and connect. When pipes, valves and other equipment are connected by flanges, bolts are often passed through the flange holes to achieve the fixing effect.

[0003] Currently, when drilling flanges, it is often necessary to fix the flange first and then drill holes in its end face. However, since the flange is often annular in shape, it is often difficult to fix it by clamping its circumference during drilling, which makes the flange prone to displacement during the drilling process and makes drilling inconvenient. Therefore, it is necessary to design a flange end face drilling and fixing fixture to solve the above problems. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of existing technologies by designing a flange end face drilling and fixing fixture that supports the inner side and front and rear end faces of the flange, thereby solving the problem of difficulty in fixing the flange during the drilling process.

[0005] To achieve the above objectives, the following technical solution is adopted:

[0006] A flange end face drilling and fixing fixture includes a lower support assembly, an inner support assembly, and an upper support assembly. The upper side of the lower support assembly is fixedly connected to the lower side of the inner support assembly, and the inner support assembly and the upper support assembly are connected by a connecting assembly.

[0007] Preferably, the lower support assembly includes a lower cover, which is cylindrical in shape.

[0008] Preferably, the internal support component includes an inner support block, which is cylindrical in shape and is coaxially arranged with the lower cover.

[0009] Preferably, the upper support assembly includes an upper plate, which is cylindrical in shape, and the diameter of the upper plate is between that of the lower cover and the inner support block.

[0010] Preferably, the connecting assembly includes a fixing rod, a nut, and a threaded hole. A threaded block one is fixedly connected to the rear end of the fixing rod, and a threaded block two is fixedly connected to the front end of the fixing rod. The threaded block two is threadedly connected to the nut.

[0011] Preferably, a positioning groove is provided on the outer side of the front circular surface of the inner support block. The positioning groove is annular in shape and the cross-section of the positioning groove is triangular.

[0012] Preferably, the inner support block has an installation groove on its inner wall in front of the threaded hole. The front end of the installation groove extends outside the inner support block. The rear end diameter of the installation groove is smaller than the front end diameter. The rear end diameter of the installation groove is consistent with the outer diameter of the threaded hole. The installation groove is connected to the threaded hole.

[0013] Preferably, a circular hole is provided in the middle of the upper plate, the diameter of which is greater than or equal to the outer diameter of the second threaded block, and the end of the fixing rod near the first threaded block passes through the circular hole.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] 1. This application uses a lower support member and an upper support member to clamp the flange in the front and rear directions, and uses an internal support assembly to support and position the inside of the flange, so that the flange end can be fixed in multiple directions before drilling, thus solving the problem of difficult fixing of the flange during drilling.

[0016] 2. By setting the positioning groove, this application enables the flange to pass through the front side of the positioning groove when it is installed on the outside of the inner support block, and to be forced to move to a position that is exactly concentric with the inner support block by the inclined surface of the positioning groove, thereby facilitating the placement of the flange. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the fixed flange in this application;

[0018] Figure 2 This is a three-dimensional structural breakdown diagram of the overall structure in this application;

[0019] Figure 3 This is a three-dimensional cross-sectional view of the overall structure in this application.

[0020] Among them, 1. Lower support assembly; 2. Internal support assembly; 3. Upper support assembly; 4. Connecting assembly; 11. Lower cover; 21. Inner support block; 22. Positioning groove; 31. Upper plate; 41. Fixing rod; 42. Threaded block one; 43. Threaded block two; 44. Threaded hole; 45. Nut; 46. Mounting groove; 5. Flange. Detailed Implementation

[0021] Reference Figures 1-3A flange end face drilling and fixing fixture includes a lower support assembly 1, an inner support assembly 2, and an upper support assembly 3. The lower support assembly 1 contacts the lower surface of the flange 5 being fixed by the fixture, and the upper support assembly 3 contacts the upper surface of the flange 5 being fixed by the fixture. The flange 5 being fixed by the fixture is fixed by the compression of the lower support assembly 1 and the upper support assembly 3 in the front-back direction. The inner support assembly 2 contacts the inner circumferential surface of the flange 5 being fixed by the fixture. The position of the flange 5, which is fixed by the fixture, is initially fixed to ensure that it is in a coaxial position with the lower support assembly 1 before it is fixed by the lower support assembly 1 and the upper support assembly 3. The upper side of the lower support assembly 1 is fixedly connected to the lower side of the inner support assembly 2. The inner support assembly 2 is connected to the upper support assembly 3 through the connecting assembly 4. The connecting assembly 4 is used to connect the upper support assembly 3 and the inner support assembly 2 and to press the inner support assembly 2 so that it can press the upper end face of the flange 5, which is fixed by the fixture.

[0022] In this embodiment, during use, the operator first installs the lower support component 1 at an angle so that its upper surface is tilted upward. Then, the flange 5, which is fixed by the fixture, is placed on the outside of the inner support component 2. After installation, the upper support component 3 is placed in the middle of the upper surface of the flange 5, which is fixed by the fixture. Then, the upper support component 3 and the inner support component 2 are fixed relative to each other by the connecting component 4, so that after the upper support component 3 is fixed, it and the lower support component 1 can fix the flange 5, which is fixed by the fixture, by pressing against each other in the vertical direction.

[0023] As a preferred embodiment, the lower support assembly 1 includes a lower cover 11, which is cylindrical in shape. The diameter of the lower cover 11 is larger than the diameter of the end face of the flange 5 fixed by the fixture, and the upper surface of the lower cover 11 is in contact with the lower end face of the flange 5 fixed by the fixture.

[0024] As a preferred embodiment, the internal support assembly 2 includes an internal support block 21, which is cylindrical in shape and coaxially arranged with the lower cover 11. The diameter of the internal support block 21 is less than or equal to the inner diameter of the flange 5 fixed by the fixture. The internal support block 21 supports the inner side of the flange 5 fixed by the fixture, ensuring that after the flange 5 fixed by the fixture is installed outside the internal support block 21, the axis of the flange 5 fixed by the fixture coincides with its axis.

[0025] As a preferred embodiment, the upper support assembly 3 includes an upper plate 31, which is cylindrical in shape. The diameter of the upper plate 31 is larger than the inner diameter of the flange 5 fixed by the fixture, and smaller than the diameter of the hole distribution circle of the flange 5 fixed by the fixture. The lower surface of the upper plate 31 is in contact with the upper surface of the flange 5 fixed by the fixture.

[0026] In a preferred embodiment, the connecting assembly 4 includes a fixing rod 41, a nut 45, and a threaded hole 44. A threaded block 42 is fixedly connected to the rear end of the fixing rod 41, and a threaded block 43 is fixedly connected to the front end of the fixing rod 41. The fixing rod 41, threaded block 42, and threaded block 43 are integrally formed. The threaded block 43 is threadedly connected to the nut 45. In use, the assembly consisting of the fixing rod 41, threaded block 42, and threaded block 43 is first inserted into the hole in the middle of the upper plate 31 with threaded block 42 closer to the lower cover 11, and then the assembly is rotated. The combined assembly allows threaded block 42 to enter threaded hole 44, thus fixing the assembly of fixing rod 41, threaded block 42, and threaded block 43. After fixing, the upper plate 31 moves to a position coaxial with the flange 5 fixed by the fixture due to the contact between the round hole and threaded block 43. At this time, the operator rotates nut 45, and through the rotation of nut 45, the upper plate 31 moves in the direction of pressing the flange 5 fixed by the fixture. Therefore, the front and rear sides of the flange 5 fixed by the fixture contact the upper plate 31 and the lower cover 11 respectively, and are fixed by the pressing of the two.

[0027] As a preferred embodiment, a positioning groove 22 is provided on the outer side of the front circular surface of the inner support block 21. By setting the positioning groove 22, the upper diameter of the inner support block 21 is smaller than the inner diameter of the flange 5 fixed by the fixture, making it easier for the flange 5 fixed by the fixture to fit into the outer side of the inner support block 21. The positioning groove 22 is annular in shape, and the cross-section of the positioning groove 22 is triangular.

[0028] As a preferred embodiment, the inner support block 21 has an installation groove 46 on its inner wall in front of the threaded hole 44. The front end of the installation groove 46 extends outside the inner support block 21, and the rear end diameter of the installation groove 46 is smaller than the front end diameter. The rear end diameter of the installation groove 46 is consistent with the outer diameter of the threaded hole 44. The installation groove 46 communicates with the threaded hole 44 and is used to position the threaded block 42, so that even if the threaded block 42 is not aligned with the threaded hole 44, it can first enter the installation groove 46 and be accurately moved to the front position of the threaded hole 44 by the inclined surface of the installation groove 46.

[0029] As a preferred embodiment, a circular hole is provided in the middle of the upper plate 31. The diameter of the circular hole is greater than or equal to the outer diameter of the threaded block 43. The end of the fixing rod 41 near the threaded block 42 passes through the circular hole. Through the circular hole, it is ensured that when the entire assembly of the fixing rod 41, the threaded block 42, and the threaded block 43 is fixed in a position where the fixing rod 41 is coaxial with the inner support block 21, the contact between the outer surface of the threaded block 43 and the inner wall of the hole in the middle of the upper plate 31 forces the upper plate 31 to move to a position coaxial with the flange 5 fixed by the fixture.

Claims

1. A flange end face drilling and fixing fixture, characterized in that, It includes a lower support component (1), an internal support component (2) and an upper support component (3). The upper side of the lower support component (1) is fixedly connected to the lower side of the internal support component (2), and the internal support component (2) and the upper support component (3) are connected by a connecting component (4).

2. The flange end face drilling and fixing fixture according to claim 1, characterized in that, The lower support assembly (1) includes a lower cover (11), which is cylindrical in shape.

3. The flange end face drilling and fixing fixture according to claim 1, characterized in that, The internal support assembly (2) includes an inner support block (21), which is cylindrical in shape and is coaxially arranged with the lower cover (11).

4. The flange end face punching fixture according to claim 3, characterized in that, The upper support assembly (3) includes an upper plate (31), which is cylindrical in shape and has a diameter between the lower cover (11) and the inner support block (21).

5. A flange end face drilling and fixing fixture according to claim 4, characterized in that, The connecting assembly (4) includes a fixing rod (41), a nut (45) and a threaded hole (44). The rear end of the fixing rod (41) is fixedly connected to a threaded block one (42), and the front end of the fixing rod (41) is fixedly connected to a threaded block two (43). The fixing rod (41), threaded block one (42) and threaded block two (43) are integrally formed. The threaded block two (43) is threadedly connected to the nut (45).

6. The flange face hole punching fixture according to claim 4, wherein, The inner support block (21) has a positioning groove (22) on the outer side of its front circular surface. The positioning groove (22) is annular in shape and has a triangular cross-section.

7. A flange end face drilling and fixing fixture according to claim 5, characterized in that, The inner support block (21) has an installation groove (46) on its inner wall in front of the threaded hole (44). The front end of the installation groove (46) extends outside the inner support block (21). The rear end diameter of the installation groove (46) is smaller than the front end diameter. The rear end diameter of the installation groove (46) is consistent with the outer diameter of the threaded hole (44). The installation groove (46) is connected to the threaded hole (44).

8. The flange end face punching fixture according to claim 5, characterized in that, A circular hole is provided in the middle of the upper plate (31), the diameter of which is greater than or equal to the outer diameter of the threaded block two (43), and the end of the fixing rod (41) near the threaded block one (42) passes through the circular hole.

Images