Tool for positioning flange

Abstract

The utility model relates to the technical field of flange tools, and discloses a flange positioning tool which comprises a base, a vertical plate and a plurality of limiting blocks, the vertical plate is fixedly connected to the base, and a plurality of flange positioning holes used for being matched with connecting pipes of flanges in an inserted mode are formed in the vertical plate; a flange plate of the flange abuts against the side face of the vertical plate. The limiting blocks are detachably connected to the same side of the vertical plate and arranged corresponding to the peripheral sides of the flange positioning holes, pressing plates are arranged on the limiting blocks, and a plurality of fixing holes with different distances from shaft cores of the flange positioning holes are formed in the peripheral sides, corresponding to the flange positioning holes, of the vertical plate; the device further comprises a fastener. Through holes for the fasteners to penetrate through are formed in the limiting blocks, the fasteners penetrate through the through holes and are detachably connected into the fixing holes, and the pressing plates are connected to the sides, away from the vertical plates, of the flange lugs in a pressed mode. The multiple flanges are installed on the vertical plate, the flanges are fixed through the limiting blocks, the processes of flange replacement and recalibration are reduced, and therefore the machining efficiency of the flanges is improved.

Description

Technical Field

[0001] The present application relates to the field of flange technology, and in particular to a tooling for positioning flanges. Background Art

[0002] Flanges are parts that connect shafts to each other and are used to connect pipe ends. Flanges are also used on equipment inlets and outlets to connect two devices.

[0003] In the related art, refer to Figure 1 The flange 4 to be processed includes a flange plate 41, a flange ear 42 and a connecting pipe 43. The flange ear 42 is arranged on the circumferential outer wall of the flange plate 41. A flange hole 44 and a plurality of first milling holes 45 are to be opened on the flange plate 41. A second milling hole 46 is to be opened on the flange ear 42. The connecting pipe 43 is connected to one side of the flange plate 41 and communicates with the flange hole 44. The flange is provided with various specifications, the diameter of the flange plate is different, and the length of the connecting pipe corresponding to the flange plate of the same size is different.

[0004] The locating flange tooling is used to fix the flange during the flange processing. Most of the existing locating flange tooling can only fix a single flange. Each time the flange is replaced, it needs to be recalibrated, and the processing efficiency is low. Different locating flange tooling is required for flanges of different sizes, which is inconvenient to operate. Utility Model Content

[0005] In order to improve the problem of low processing efficiency of a tool for positioning flanges, the present application provides a tool for positioning flanges.

[0006] The present application provides a tooling for positioning flanges, which adopts the following technical solution:

[0007] A tooling for positioning a flange, comprising a base, a vertical plate and a plurality of limit blocks, the vertical plate being fixedly connected to the base, the vertical plate being provided with a plurality of flange positioning holes for plugging and cooperating with the connecting pipe of the flange; the flange plate of the flange is used to press against the side of the vertical plate; a plurality of the limit blocks are detachably connected to the same side of the vertical plate, and are arranged corresponding to the peripheral sides of the flange positioning holes, a pressure plate is arranged on the limit block, and a plurality of fixing holes with different distances from the axial core of the flange positioning holes are arranged on the peripheral sides of the vertical plate corresponding to the flange positioning holes; a fastener is also included, the limit block is provided with a through hole for the fastener to pass through, the fastener passes through the through hole and is detachably connected to the fixing hole, and the pressure plate is crimped to the side of the flange ear away from the vertical plate.

[0008] By adopting the above technical solution, a plurality of flange positioning holes are provided on the vertical plate, and a plurality of flanges can be fixed on the vertical plate at the same time. The flange is fixed to the vertical plate by a plurality of limit blocks, and a pressure plate is crimped on the side of the flange ear away from the vertical plate to prevent the flange from falling off; through the fixing holes at different distances from the flange positioning holes, the limit blocks are fixed on the fixing holes at different positions according to the size of the flange.

[0009] Optionally, the through hole is configured as a long slot hole, and the length of the long slot hole extends in a direction toward the flange positioning hole.

[0010] By adopting the above technical solution, the through hole is set as a long slot hole, so that when the limit block is pressed against the flange, the fixed position of the limit block can be adjusted according to the size of the flange.

[0011] Optionally, an arc-shaped supporting portion abutting against an arc-shaped side edge of the flange is provided on a side of the limiting block close to the flange.

[0012] By adopting the above technical solution, the arc-shaped supporting portion abuts against the arc-shaped side edge of the flange, thereby limiting the movement of the flange.

[0013] Optionally, the arc curvature of the arc-shaped supporting portion is less than or equal to the curvature of the arc-shaped side of the flange.

[0014] By adopting the above technical solution, the curvature of the arc-shaped supporting portion is less than or equal to the curvature of the arc-shaped side of the flange, so that the arc-shaped supporting portion is closely attached to the arc-shaped side of the flange, limiting the position of the flange.

[0015] Optionally, the pressure plates are provided on both sides of the arc-shaped supporting portion of the limiting block.

[0016] By adopting the above technical solution, the pressure plate on the limit block is used to press the side edges of the adjacent flange ears, so that the force on both sides of the limit block is uniform.

[0017] Optionally, a sliding limit groove is arranged on the vertical plate along the circumference of the flange positioning hole, and the limit block is slidably connected in the sliding limit groove along a direction approaching or moving away from the flange positioning hole.

[0018] By adopting the above technical solution, the limit block slides in the sliding limit groove, which makes it easy to adjust the abutment between the limit block and the flange.

[0019] Optionally, a clearance groove is provided on the vertical plate at a position corresponding to the hole to be processed on the flange.

[0020] By adopting the above technical solution and setting a clearance groove, when processing the flange, it is convenient to discharge the waste generated during processing, and at the same time prevent the damage of the tooling used for positioning the flange of the processing equipment.

[0021] Optionally, a guide post pin and a guide post sleeve are provided between the vertical plate and the base, the guide post pin is fixedly connected to the bottom of the vertical plate, the guide post sleeve is fixedly connected to the base, and the guide post pin is pin-connected to the guide post sleeve.

[0022] By adopting the above technical solution, the guide pins and guide sleeves are used to locate the fixed positions of the base and the vertical plate, thereby preventing the base and the vertical plate from sliding relative to each other during installation, thereby facilitating the fixation between the base and the vertical plate.

[0023] Optionally, a hanging ring is provided on a side of the vertical plate away from the base.

[0024] By adopting the above technical solution, the lifting ring is used to lift the tooling for positioning the flange, so as to facilitate the transportation of the tooling for positioning the flange.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: a plurality of flange positioning holes are arranged on the vertical plate, the flanges are placed in the flange positioning holes, and the flanges are limited on the vertical plate by a plurality of limit blocks, and the vertical plate can fix multiple flanges at the same time, thereby reducing the flange replacement and repositioning correction process and improving processing efficiency; the long slot holes arranged on the limit blocks and the fixing holes on the vertical plates at different distances from the flange positioning holes can adjust the fixed position of the limit blocks according to the size of the flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the flange structure.

[0027] Figure 2 It is a structural schematic diagram of the tooling for positioning flange in this application.

[0028] Figure 3 It is a structural schematic diagram of the tooling installation flange for positioning flange in this application.

[0029] Figure 4 It is a schematic diagram of the exploded structure of the flange used for the tooling installation of the positioning flange in this application.

[0030] Figure 5 It is a schematic diagram of the bottom structure of the base specified in this application.

[0031] Figure 6 It is a structural schematic diagram of the positioning pin of this application.

[0032] Figure 7 It is a structural schematic diagram of the vertical plate of this application.

[0033] Figure 8 It is a structural schematic diagram of the back side of the vertical board of this application.

[0034] Fig. 9 It is a structural schematic diagram of the guide pin and guide sleeve of the present application.

[0035] Fig.10 It is a structural schematic diagram of the limit block of this application.

[0036] Fig.11 It is a structural schematic diagram of the flange and limit block assembly of the present application.

[0037] Reference numerals: 1, base; 11, workbench; 111, first threaded hole; 112, pin hole; 113, chamfered edge; 12, base; 121, limit hole; 122, placement slot; 123, first step countersunk hole; 124, positioning slot hole; 125, second step countersunk hole; 2, vertical plate; 21, flange positioning hole; 22, sliding limit slot; 23, clearance slot; 24, fixing hole; 25, lifting ring; 26, second threaded hole; 27, guide Column hole; 3. Limit block; 31. Pressure plate; 32. Arc-shaped supporting part; 33. Through hole; 331. Long slot hole; 4. Flange; 41. Flange plate; 42. Flange ear; 43. Connecting pipe; 44. Flange hole; 45. First milling hole; 46. Second milling hole; 5. Fastening screw; 6. Positioning pin; 61. Boss; 62. Pin rod; 7. Guide pin; 71. Pin platform; 8. Guide sleeve; 9. Fastener; 91. Spring washer; 92. Gasket. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings.

[0039] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] The present application embodiment discloses a tool for positioning flange, referring to Figure 2 and Figure 3 , including a base 1, a vertical plate 2 and a plurality of limit blocks 3, the vertical plate 2 is fixedly connected to the base 1, and a plurality of flange positioning holes 21 for plugging and matching the connecting pipes 43 of the flange 4 are provided on the vertical plate 2, and the flange plate 41 of the flange 4 is used to be tightly pressed against the side of the vertical plate 2; it also includes a fastener 9, and the fastener 9 preferably adopts a hexagon socket head screw, and a plurality of limit blocks 3 are detachably connected to the same side of the vertical plate 2 through the fastener 9, and are arranged corresponding to the peripheral side of the flange positioning hole 21, and the plurality of limit blocks 3 are used to limit the flange 4 on the vertical plate 2. A spring washer 91 and a gasket 92 are arranged between the fastener 9 and the limit block 3.

[0041] Reference Figure 4 The base 1 includes a workbench 11 and a base 12. The base 12 is fixedly connected to the workbench 11. The vertical plate 2 is vertically connected to the base 12. The workbench 11 is a square structure. A plurality of first threaded holes 111 distributed in an array are arranged on the workbench 11. A pin hole 112 is opened at the center position of the workbench 11. A bevel chamfer 113 is arranged at the top corner of the workbench 11.

[0042] Reference Figure 4 and Figure 5 The base 12 is in a rectangular parallelepiped structure. A limiting hole 121 is provided at a side of the base 12 close to the workbench 11 corresponding to the pin hole 112. A placement groove 122 for providing the vertical plate 2 is provided in the middle position of the side of the base 12 away from the workbench 11. A plurality of first step countersunk holes 123 and symmetrical positioning slot holes 124 distributed at equal intervals are provided in the placement groove 122. A plurality of second step countersunk holes 125 corresponding to the first threaded holes 111 of the workbench 11 are provided on both sides of the placement groove 122 of the base 12. The base 12 is fixed on the workbench 11 by passing the second step countersunk holes 125 through the fastening screws 5 and threading them into the first threaded holes 111.

[0043] Reference Figure 4 and Figure 6 A positioning pin 6 is provided between the workbench 11 and the base 12. The positioning pin 6 includes a boss 61 and a pin rod 62 connected to one side of the boss 61. The boss 61 is placed in the limiting hole 121, and the pin rod 62 is used to be inserted into the pin hole 112. The relative sliding of the base 12 and the workbench 11 is limited by the positioning pin 6, so that the base 12 is conveniently fixed on the workbench 11.

[0044] Reference Figure 7 and Figure 8 The vertical plate 2 is a rectangular parallelepiped structure, and a plurality of flange positioning holes 21 are distributed in an array on the vertical plate 2. A plurality of fixing holes 24 with different distances from the axial core of the flange positioning hole 21 are opened on the circumferential side of the vertical plate 2 corresponding to the flange positioning hole 21. A sliding limit groove 22 is arranged on the vertical plate 2 along the circumference of the flange positioning hole 21. The limit block 3 is slidably connected in the sliding limit groove 22 along the direction approaching or away from the flange positioning hole 21. A clearance groove 23 is arranged on the vertical plate 2 corresponding to the position of the hole to be processed on the flange 4. A lifting ring 25 is symmetrically arranged on the side of the vertical plate 2 away from the base 1. The lifting ring 25 is used to lift the tooling for the positioning flange to facilitate the transportation of the tooling for the positioning flange. A plurality of second threaded holes 26 and symmetrical guide post holes 27 are provided on the side of the vertical plate 2 close to the base 1. The side of the vertical plate 2 away from the lifting ring 25 is placed in the placement groove 122, and the vertical plate 2 is fixed on the base 12 by fastening screws 5 passing through the first step countersunk hole 123 and threadedly connected to the second threaded hole 26.

[0045] Reference Figure 3 and Fig. 9 A guide pin 7 and a guide pin sleeve 8 are provided between the base 12 and the vertical plate 2. One end of the guide pin 7 is in a cylindrical structure and is placed in the guide pin hole 27. The other end of the guide pin 7 is provided with a pin platform 71 in a truncated cone structure. The guide pin sleeve 8 is placed in the positioning slot 124. A groove adapted to the pin platform 71 is provided in the guide pin sleeve 8. The pin platform 71 is placed in the groove of the guide pin sleeve 8. The guide pin 7 is connected to the guide pin sleeve 8. The base 12 and the vertical plate 2 are positioned in a fixed position by the guide pin 7 and the guide pin sleeve 8 to prevent the base 12 and the vertical plate 2 from sliding relative to each other during installation, thereby facilitating the fixation between the base 12 and the vertical plate 2.

[0046] Reference Fig.10 and Fig.11 The limit block 3 is an integrally formed structure, and a pressure plate 31 is symmetrically arranged on the limit block 3. A through hole 33 for the fastener 9 to pass through is arranged on the limit block 3. The through hole 33 is arranged as a long slot hole 331, and the extension direction of the length of the long slot hole 331 is toward the flange positioning hole 21. The fastener 9 passes through the through hole 33 and is detachably connected to the fixing hole 24. The pressure plate 31 is crimped to the side of the flange ear 42 away from the vertical plate 2 to prevent the flange 4 from falling off; an arc-shaped supporting portion 32 is arranged on the side of the limit block 3 close to the flange 4, and the arc-shaped supporting portion 32 abuts against the arc-shaped side of the flange 41, and the arc curvature of the arc-shaped supporting portion 32 is less than or equal to the curvature of the arc-shaped side of the flange 41.

[0047] The implementation principle of a tooling for positioning flange in an embodiment of the present application is: during the assembly process of the tooling, the fixed position of the base 12 and the vertical plate 2 is limited by the guide pins and the guide column sleeves 8, the base 12 and the vertical plate 2 are fixedly connected by the fastening screws 5, and a lifting ring 25 is installed on the side of the vertical plate 2 away from the base 12; then the fixed position of the base 12 and the workbench 11 is limited by the positioning pins 6, and the base 12 and the workbench 11 are fixedly connected.

[0048] When installing the flange 4, the connecting pipe 43 of the flange 4 is inserted into the flange positioning hole 21 of the vertical plate 2, the flange plate 41 is pressed against the side of the vertical plate 2, and the flange 4 is fixed to the vertical plate 2 by a plurality of limit blocks 3, the arc-shaped supporting portion 32 of the limit block 3 is pressed against the arc-shaped side of the flange plate 41, the pressure plate 31 is pressed against the side of the flange ear 42 away from the vertical plate 2, and the fastener 9 passes through the long slot hole 331 and is threadedly connected to the fixing hole 24. According to the size of the flange 4, the fixed position of the fastener 9 in the long slot hole 331 can be adjusted, and the fastener 9 can be threadedly connected to the fixing holes 24 at different distances from the flange positioning hole 21, so that the limit block 3 fixes the flange 4 to the vertical plate 2.

[0049] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A tool for positioning flange, characterized in that: The invention comprises a base (1), a vertical plate (2) and a plurality of limit blocks (3); the vertical plate (2) is fixedly connected to the base (1); the vertical plate (2) is provided with a plurality of flange positioning holes (21) for plugging and matching with the connecting pipe (43) of the flange (4); the flange plate (41) of the flange (4) is used to press against the side surface of the vertical plate (2); a plurality of limit blocks (3) are detachably connected to the same side of the vertical plate (2) and are arranged corresponding to the peripheral side of the flange positioning holes (21); the limit blocks (3) A pressure plate (31) is arranged on the upper side, and a plurality of fixing holes (24) with different distances from the axial core of the flange positioning hole (21) are opened on the peripheral side of the vertical plate (2) corresponding to the flange positioning hole (21); it also includes a fastener (9); the limit block (3) is provided with a through hole (33) for the fastener (9) to pass through, the fastener (9) passes through the through hole (33) and is detachably connected to the fixing hole (24), and the pressure plate (31) is crimped to the side of the flange ear (42) away from the vertical plate (2).

2. The tooling for positioning flange according to claim 1, characterized in that: The through hole (33) is configured as a long slot hole (331), and the extension direction of the length of the long slot hole (331) is toward the flange positioning hole (21).

3. The tooling for positioning flange according to claim 2, characterized in that: A side of the limit block (3) close to the flange (4) is provided with an arc-shaped supporting portion (32) that abuts against the arc-shaped side edge of the flange plate (41).

4. The tooling for positioning flange according to claim 3, characterized in that: The arc curvature of the arc-shaped supporting portion (32) is less than or equal to the curvature of the arc-shaped side of the flange (41).

5. The tooling for positioning flange according to claim 3, characterized in that: The pressure plates (31) are arranged on both sides of the arc-shaped supporting portion (32) on the limiting block (3).

6. The tooling for positioning flange according to claim 1, characterized in that: A sliding limit groove (22) is provided on the vertical plate (2) along the circumference of the flange positioning hole (21), and the limit block (3) is slidably connected in the sliding limit groove (22) along a direction approaching or moving away from the flange positioning hole (21).

7. The tooling for positioning flange according to claim 1, characterized in that: A clearance groove (23) is provided on the vertical plate (2) at a position corresponding to the hole to be processed on the flange (4).

8. The tooling for positioning flange according to claim 1, characterized in that: A guide column pin (7) and a guide column sleeve (8) are provided between the vertical plate (2) and the base (1); the guide column pin (7) is fixedly connected to the bottom of the vertical plate (2); the guide column sleeve (8) is fixedly connected to the base (1); and the guide column pin (7) is pin-connected to the guide column sleeve (8).

9. The tooling for positioning flange according to claim 1, characterized in that: A hanging ring (25) is provided on a side of the vertical plate (2) away from the base (1).

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