Flange drill jig tool

Abstract

The utility model relates to a flange drill jig tool which comprises a base and a supporting flange plate. The positioning arm is rotationally connected with the base through a rotating shaft; a pin hole and a positioning hole are formed in the positioning arm; the index plate is arranged on the base; an index hole is formed in the index plate and communicated with the pin hole; the index holes are formed around the rotating shaft, and the included angles formed by the adjacent index holes around the rotating shaft are the same; the clamping assembly is arranged on the base; the clamping assembly comprises a swing arm and a pressing rod. Wherein when the flange plate is arranged on the base, the flange plate, the positioning arm and the index plate are arranged in parallel; the pressing rod is perpendicular to the flange plate. The flange plate is arranged between the pressing rod and the base. The pressing rod in the clamping assembly makes contact with the surface, away from the base, of the flange plate, and the flange plate is fixed to the base. The flange plate fixing stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange plate processing equipment technical field especially relates to flange drilling jig tooling. BACKGROUND

[0002] A plurality of bolt holes are arranged on the flange plate for connecting the flange plate. In order to guarantee the machining position precision of the bolt hole on the flange plate, a guide hole will be machined on the flange plate before machining the bolt hole.

[0003] When the diameter of the flange plate and the number of bolt holes change, the machining position of the bolt hole also changes, and the position of the guide hole also changes correspondingly. In addition, with the change of the diameter and thickness of the flange plate, the structure for fixing the flange plate on the tooling also changes. Therefore, different drilling jig toolings are used to process flange plates of different size specifications and models to adapt to the change of the flange plate. In this way, multiple sets of drilling jig toolings need to be prepared, and new drilling jig toolings need to be specially designed to face new specifications of the flange plate, which has high design and production cost and long cycle.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a flange drilling jig tooling to improve the universal performance of the flange drilling jig tooling.

[0006] The technical scheme of the utility model is as follows:

[0007] The flange drilling jig tooling comprises:

[0008] A base supports the flange plate.

[0009] A positioning arm is rotatably connected to the base by a rotating shaft. Pin holes and positioning holes are arranged on the positioning arm.

[0010] An index plate is arranged on the base. Index holes are arranged on the index plate and communicate with the pin holes. The index holes are arranged around the rotating shaft, and the included angles of adjacent index holes around the rotating shaft are the same.

[0011] A clamping assembly is arranged on the base. The clamping assembly comprises a swing arm and a pressing rod.

[0012] When the flange plate is arranged on the base, the flange plate, the positioning arm and the index plate are arranged in parallel. The pressing rod is perpendicular to the flange plate. The flange plate is arranged between the pressing rod and the base.

[0013] Further, the technical scheme is that the clamping assembly further comprises a clamping seat; the swing arm is rotationally connected to the clamping seat; and a rotation plane of the swing arm is perpendicular to the index plate.

[0014] Further, the technical scheme is that along a length direction of the swing arm, an adjusting groove is formed in the swing arm; and the pressing rod is slidably arranged in the adjusting groove.

[0015] Further, the technical scheme is that the clamping assembly further comprises a handle and a connecting piece; one end of the handle is rotationally connected to the clamping seat, and the handle is rotationally connected to the connecting piece; and one end of the connecting piece, which is away from the handle, is rotationally connected to the swing arm; and rotation planes of the handle, the swing arm and the connecting piece are parallel.

[0016] Further, the technical scheme is that the base further comprises an elastic supporting block; and the base supports the flange plate through the elastic supporting block.

[0017] Further, the technical scheme is that along a length direction of the positioning arm, the positioning arm is bent to form a step on one side of the base; and the step contacts an outer surface of the index plate.

[0018] Further, the technical scheme is that along a radial direction of the rotating shaft, a plurality of groups of the index holes are sequentially arranged on the index plate; the number of index holes in different groups is different, and adjacent index holes in the same group form an angle of the same degree around the rotating shaft; and correspondingly, along the radial direction of the rotating shaft, a plurality of the pin holes are formed in the positioning arm to respectively communicate the index holes in different groups.

[0019] Further, the technical scheme is that along a length direction of the positioning arm, at least two positioning holes are formed in the positioning arm.

[0020] Further, the technical scheme is that the base is provided with at least two guide rods; the guide rods are arranged parallel to the index plate; a clamping block is arranged on one end of the guide rod close to the index plate; and an elastic piece is sleeved on the guide rod between the clamping block and the base.

[0021] Further, the technical scheme is that the clamping block is provided with a circular-arc groove on one end close to the index plate.

[0022] The beneficial technical effects of the utility model are as follows:

[0023] (1) The flange drilling jig in the utility model, the positioning hole is arranged on the positioning arm, the positioning hole is directed to the machining position of the guide hole by aligning the pin hole on the positioning arm and the index hole on the index plate. The layout of the index hole and the arrangement position of the positioning hole can be changed to adapt to the size and model changes of the flange plate, and a new flange drilling jig does not need to be designed and installed again, so that the machining period of the guide hole of the flange plate is shortened. In addition, the clamping assembly is further arranged on the base, and the pressing rod in the clamping assembly can contact the surface of the flange plate away from the base, so that the flange plate is fixed on the base. The stability of the flange plate is improved, and the machining of the guide hole is not affected by the unstable fixation of the flange plate. Especially when the size of the flange plate is large, the clamping assembly can effectively improve the fixing stability of the flange plate.

[0024] (2) Further, the adjusting groove is arranged on the swing arm, and the position of the pressing rod can be conveniently adjusted along the adjusting groove, so that the position of the flange plate can be stably fixed by the pressing rod even if the size of the flange plate changes.

[0025] (3) Further, the handle and the connecting piece are further included. The operator can conveniently adjust the rotation angle of the swing arm by moving the handle, so that the pressing rod can press or release the flange plate on the base. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A front view structural schematic diagram of the flange drilling jig in an embodiment of the present disclosure is shown.

[0027] Figure 2 A bottom view structural schematic diagram of the flange drilling jig in an embodiment of the present disclosure is shown.

[0028] Figure 3 A partial enlarged view of the flange drilling jig in an embodiment of the present disclosure at A is shown.

[0029] Figure 4 An assembly structural schematic diagram of the guide rod and the clamping block in the flange drilling jig in an embodiment of the present disclosure is shown.

[0030] Markings in the drawings:

[0031] 1, base; 2, guide rod; 21, elastic piece; 22, clamping block; 221, circular arc groove; 3, elastic supporting block; 4, index plate; 41, index hole; 5, positioning arm; 51, pin hole; 52, positioning hole; 53, step; 6, clamping assembly; 61, clamping seat; 62, handle; 63, swing arm; 631, adjusting groove; 64, connecting piece; 65, pressing rod; 66, pressing block; 7, rotating shaft. DETAILED DESCRIPTION

[0032] For the purpose, features and advantages of the present application to be more obvious, please refer to the drawings. It should be noted that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the conditions for implementing the present application, so they do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0033] In the description of the present application, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] Figure 1 A front view structural schematic diagram of a flange drilling jig of an embodiment of the present application is shown. Figure 2 A bottom view structural schematic diagram of a flange drilling jig of an embodiment of the present application is shown. Please refer to Figure 1 and Figure 2 , the flange drilling jig comprises a base 1 supporting a flange plate. A positioning arm 5 is rotatably connected to the base 1 through a rotating shaft 7. A pin hole 51 and a positioning hole 52 are provided. An index plate 4 is arranged on the base 1. The index plate 4 is provided with index holes 41 communicating with the pin hole 51. A plurality of index holes 41 are arranged around the rotating shaft 7, and the included angles of the adjacent index holes 41 formed around the rotating shaft 7 are the same. By aligning the pin hole 51 on the positioning arm 5 and the index hole 41 on the index plate 4, the positioning hole 52 is directed to the machining position of the guide hole. By changing the layout of the index hole 41 and the opening position of the positioning hole 52, the size and model of the flange plate can be adapted without the need to redesign and install a new flange drilling jig, thereby shortening the machining period of the flange plate guide hole. A clamping assembly 6 is arranged on the base 1. The clamping assembly 6 comprises a swing arm 63 and a pressing rod 65. When the flange plate is arranged on the base 1, the flange plate, the positioning arm 5 and the index plate 4 are arranged in parallel. The pressing rod 65 is perpendicular to the flange plate. The flange plate is arranged between the pressing rod 65 and the base 1. The pressing rod 65 in the clamping assembly 6 can contact the surface of the flange plate away from the base 1, so as to fix the flange plate on the base 1. The stability of the flange plate is improved, and the machining of the guide hole is not affected by the unstable fixation of the flange plate. Especially when the size of the flange plate is large, the clamping assembly 6 can effectively improve the fixing stability of the flange plate.

[0035] Figure 3 A partial enlarged view of the flange drilling jig of the embodiment of the present disclosure is shown at A. Please refer to Figure 1 、 Figure 2 and Figure 3 The clamping assembly 6 further comprises a clamping seat 61. The swing arm 63 is rotatably connected to the clamping seat 61. The swing arm 63 is rotatably connected to the base 1 through the clamping seat 61, and the guide rod 2 passes through the clamping seat 61. The rotation plane of the swing arm 63 is perpendicular to the index plate 4.

[0036] Preferably, along the length direction of the swing arm 63. An adjusting groove 631 is formed on the swing arm 63. A pressing rod 65 is slidably arranged in the adjusting groove 631. The position of the pressing rod 65 can be conveniently adjusted along the adjusting groove 631. Even if the size of the flange changes, the pressing rod 65 can always stably fix the position of the flange.

[0037] More preferably, the clamping assembly 6 further comprises a handle 62 and a connecting piece 64. One end of the handle 62 is rotatably connected to the clamping seat 61, and the handle 62 is rotatably connected to the connecting piece 64. The connecting piece 64 is rotatably connected to the swing arm 63 away from the handle 62. The rotation planes of the handle 62, the swing arm 63 and the connecting piece 64 are parallel. The operator can conveniently adjust the rotation angle of the swing arm 63 by moving the handle 62, so as to press or release the flange on the base 1 by the pressing rod 65.

[0038] Please refer to Figure 1 and Figure 2 The base 1 is further provided with an elastic supporting block 3. The base 1 supports the flange through the elastic supporting block 3. In the embodiment, the elastic supporting block 3 can be a rubber block. By using the elastic deformation of the elastic supporting block 3, the size tolerance between the flange and the base 1 can be compensated, so as to avoid the gap between the base 1 and the flange, and improve the stability of the flange installation.

[0039] Preferably, along the length direction of the positioning arm 5. The positioning arm 5 is bent to form a step 53 on one side of the base 1. The step 53 contacts the outer vertical surface of the index plate 4. The step 53 cooperates with the outer vertical surface of the index plate 4 to limit the positional relationship between the positioning arm 5 and the index plate 4, thereby improving the stability of the positioning arm 5 when rotating.

[0040] Please refer to Figure 1 and Figure 2The index plate 4 is provided with a plurality of groups of index holes 41 in sequence. The number of index holes 41 in different groups is different, and the angle of the included angle formed by adjacent index holes 41 in the same group around the rotation shaft 7 is the same. Correspondingly, a plurality of pin holes 51 are formed on the positioning arm 5 in the radial direction of the rotation shaft 7 to respectively communicate with different groups of index holes 41. When the flange plate with different numbers of bolt holes is processed, only the corresponding different index holes 41 and pin holes 51 are needed, and the index plate 4 does not need to be replaced, so that the flange plate with different numbers of bolt holes can be quickly adapted. The operation steps of the flange drilling tool are simplified, and the processing efficiency of the flange plate is improved.

[0041] Preferably, at least two positioning holes 52 are formed on the positioning arm 5 in the length direction of the positioning arm 5. When the diameter size of the flange plate changes, the position of the bolt hole on the flange plate changes. At this time, the positioning holes 52 formed at different positions can correspond to the position of the bolt hole on the flange plate with different diameters. The positioning arm 5 does not need to be replaced, so that the flange plate with different diameter sizes can be quickly adapted. The operation steps of the flange drilling tool are simplified, and the drilling efficiency of the flange plate is improved.

[0042] Figure 4 The assembly structure of the guide rod and the clamping block in the flange drilling jig of an embodiment of the present disclosure is shown. Please refer to Figure 1 and Figure 4 The base 1 is provided with at least two guide rods 2. The guide rods 2 are parallel to the index plate 4. The guide rods 2 are provided with clamping blocks 22 at one end close to the index plate 4, and the guide rods 2 between the clamping blocks 22 and the base 1 are sleeved with elastic members 21. In this embodiment, the elastic member 21 can be a spring. The guide rods 2 guide the extension direction of the elastic member 21, and ensure that the elastic member 21 pushes the clamping block 22 to contact the flange plate. When the flange plate is arranged on the base 1, the elastic member 21 pushes the clamping block 22 to abut against the arc side surface of the flange plate. The at least two clamping blocks 22 cooperate with each other to fix the position of the flange plate on the base 1 in the horizontal direction.

[0043] Preferably, the clamping block 22 is provided with an arc groove 221 at one end close to the index plate 4. The arc groove 221 is more fitted to the arc side surface of the flange plate, so as to improve the contact area between the clamping block 22 and the flange plate, and improve the stability of the clamping block 22 in fixing the flange.

[0044] The specific working process of the utility model is as follows:

[0045] When the machining position of the guide hole on the flange plate is positioned, the operator first pulls the handle 62 until the pressing rod 65 is away from the base 1, and then pushes the clamping block 22 away from the index plate 4. Finally, the flange plate is placed on the base 1, and then the position of the clamping block 22 is no longer limited, the handle 62 is pulled until the pressing block 66 contacts the flange plate. At this time, the index plate 4 is located in the flange hole of the flange plate, the clamping block 22 contacts the arc side of the flange plate, the pressing block 66 contacts the surface of the flange plate away from the base 1, and the flange plate is completely fixed. Then, according to the diameter of the flange plate and the number of drilling holes, the corresponding index hole 41 and the positioning hole 52 are selected. Rotate the positioning arm 5 around the rotating shaft 7, and connect the pin hole 51 and the different index holes 41 through the insertion pin (not shown in the figure) in sequence. When the pin hole 51 and the index hole 41 are connected through the insertion pin, the position of the selected positioning hole 52 is the drilling position of the guide hole.

[0046] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0047] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A flange drilling jig tool, characterized by, The flange drilling jig comprises: a base supporting the flange plate; a positioning arm rotatably connected to the base via an axis; the positioning arm is provided with a pin hole and a positioning hole; an index plate arranged on the base; the index plate is provided with index holes communicating with the pin hole; the index holes are arranged around the axis, and the included angles of adjacent index holes around the axis are the same; a clamping assembly arranged on the base; the clamping assembly comprises a swing arm and a pressing rod; wherein, when the flange plate is arranged on the base, the flange plate, the positioning arm and the index plate are arranged in parallel; the pressing rod is arranged perpendicularly to the flange plate; and the flange plate is arranged between the pressing rod and the base.

2. The flange drill jig assembly of claim 1, wherein: The clamping assembly further comprises a clamping seat; the swing arm is rotatably connected to the clamping seat; and the rotation plane of the swing arm is perpendicular to the index plate.

3. The flange drilling fixture of claim 2, wherein: Along the length direction of the swing arm; the swing arm is provided with an adjusting groove; and the pressing rod is slidably arranged in the adjusting groove.

4. The flange drill jig assembly of claim 3, wherein: The clamping assembly further comprises a handle and a connecting piece; one end of the handle is rotatably connected to the clamping seat, and the handle is rotatably connected to the connecting piece; one end of the connecting piece away from the handle is rotatably connected to the swing arm; and the rotation planes of the handle, the swing arm and the connecting piece are parallel.

5. The flange drilling fixture of claim 1, wherein: The base is further provided with an elastic supporting block; and the base supports the flange plate via the elastic supporting block.

6. The flange drilling fixture of claim 1, wherein: Along the length direction of the positioning arm; the positioning arm is bent to form a step towards one side of the base; and the step contacts the outer vertical surface of the index plate.

7. The flange drilling fixture of claim 1, wherein: Along the radial direction of the axis; a plurality of groups of index holes are arranged on the index plate in sequence; the number of index holes in different groups is different, and the included angles of adjacent index holes in the same group around the axis are the same; correspondingly, a plurality of pin holes are arranged on the positioning arm along the radial direction of the axis to respectively communicate with index holes in different groups.

8. The flange drilling fixture of claim 1, wherein: Along the length direction of the positioning arm, at least two positioning holes are arranged on the positioning arm.

9. The flange drilling fixture of claim 1, wherein: At least two guide rods are arranged on the base; the guide rods are arranged in parallel to the index plate; a clamping block is arranged on one end of the guide rod close to the index plate, and an elastic member is sleeved on the guide rod between the clamping block and the base.

10. The flange drilling fixture of claim 9, wherein: An arc groove is arranged on one end of the clamping block close to the index plate.

Images