Flange machining tool
By introducing an index plate and positioning arm into the flange machining fixture, the problem of wasted tooling design in the existing technology is solved, enabling rapid adaptation of flanges of different sizes and drilling numbers, reducing costs and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI AIERTE PETROCHEMICAL MASCH CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-10
AI Technical Summary
Existing flange processing tooling requires specialized design for each product, resulting in wasted manpower, materials, and equipment in design and production, leading to high costs and long cycles.
A flange processing fixture consisting of a base, an index plate, and a positioning arm is used. By setting index holes on the index plate and pin holes on the positioning arm, combined with guide rods and clamping blocks, it is possible to quickly adapt flanges of different sizes and the number of drilled holes.
The tooling operation steps were simplified, tooling costs were reduced, the processing efficiency and adaptability of flanges were improved, and the need to change tooling was reduced.
Smart Images
Figure CN224101888U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to flange plate processing equipment technical field especially relates to flange processing frock. BACKGROUND
[0002] The flange plate needs to be drilled with a plurality of bolt holes in the circumferential direction for the connection of the flange plate. In order to correctly guide the position of drilling and ensure the accuracy of the hole, the guide hole needs to be processed first for the processing of the screw hole on the end face of the flange plate. The commonly used method is one base circle one drill jig frock for one product, and the drill jig usually adopts a stop position or an external circle position, and the processing accuracy of the frock is also relatively high. This frock needs to be specially designed and manufactured for each product, which wastes manpower, consumes materials, occupies equipment, has high cost and long cycle. In order to save time, some companies even process the guide hole on the machining center, which has high cost.
[0003] 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. CONTENT OF THE UTILITY MODEL
[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a flange processing frock to improve the universality of the flange processing frock.
[0005] The technical scheme of the utility model is as follows:
[0006] The flange processing frock comprises:
[0007] A base supports the flange plate.
[0008] An index plate is arranged on the base.
[0009] A positioning arm is rotatably arranged on the base. When the flange plate is arranged on the base, the index plate is arranged in the flange hole of the flange plate, the rotation axis of the positioning arm coincides with the axis of the flange plate, and the positioning arm, the index plate and the flange plate are parallel.
[0010] Among them, along the rotation axis of the positioning arm, a pin hole and a positioning hole are arranged through the positioning arm; an index hole is arranged on the index plate to communicate with the pin hole; a plurality of index holes are arranged around the rotation axis of the positioning arm, and the included angles formed by adjacent index holes around the rotation axis of the positioning arm are the same.
[0011] Further, a plurality of groups of the index holes are sequentially arranged on the index plate in a direction away from the pivot of the positioning arm; the number of index holes in different groups is different, and the included angle formed by adjacent index holes in the same group around the pivot of the positioning arm is the same; correspondingly, a plurality of pin holes are arranged on the positioning arm in a direction away from the pivot of the positioning arm, so as to respectively communicate with different groups of the index holes.
[0012] Further, at least two guide rods are arranged on the base; when the flange plate is arranged on the base, the guide rods are perpendicular to the arc surface of the flange plate; a clamping block is arranged at the end of the guide rod close to the index plate; an elastic member is sleeved on the guide rod between the clamping block and the base.
[0013] Further, the surface of the clamping block close to the index plate is recessed to the side away from the index plate to form an arc recess.
[0014] Further, an outer edge is arranged on the base, the elastic member is arranged between the outer edge and the clamping block, and the guide rod passes through the outer edge.
[0015] Further, the base is annular, a guide wheel is arranged at the end of the positioning arm away from the index plate, the pivot of the guide wheel is parallel to the pivot of the positioning arm, and the arc surface of the guide wheel contacts the arc outer vertical surface of the annular base.
[0016] Further, at least two positioning holes are arranged on the positioning arm along the length direction of the positioning arm.
[0017] Further, a sleeve is arranged in the positioning hole.
[0018] Further, the part of the sleeve extending into the positioning hole is provided with a radial flange, a fastening screw is arranged on the positioning arm, and the flange is arranged between the fastening screw and the positioning arm.
[0019] Further, the edge of the flange is provided with a notch, the notch comprises an avoiding section and a limiting section, the avoiding section penetrates the flange from the surface of the flange away from the positioning arm to the surface of the flange close to the positioning arm, and the limiting section does not penetrate the flange.
[0020] The beneficial technical effects of the utility model are as follows:
[0021] (1) The flange machining tool in the utility model, positioning holes are formed on the positioning arm, and the machining position of the flange guide hole is determined through the position of the positioning hole. Meanwhile, an index plate is further arranged on the base, a plurality of index holes are directionally formed on the index plate, the position of the index hole cooperates with the position of the pin hole on the positioning arm to determine the angle of the positioning arm. That is, the machining position of the flange guide hole is determined by the index hole preformed on the index plate and the length of the positioning arm itself. When machining flanges of different sizes, only the index hole of the corresponding position needs to be preformed, and the positioning arm of the corresponding length is arranged, so that the tool does not need to be reconfigured. One set of flange machining tool can realize the machining of the guide holes of flanges of different sizes and different drilling numbers, thereby reducing the tool cost.
[0022] (2) Further, a plurality of index holes are sequentially arranged on the index plate, and different groups of index holes correspond to flanges of different drilling numbers. When machining flanges of different drilling numbers, only the different index holes and pin holes need to be corresponded, so that the flange can be quickly adapted without replacing the index plate. The operation steps of the flange machining tool are simplified, and the machining efficiency of the flange is improved.
[0023] (3) Further, a plurality of positioning holes are formed on the positioning arm along the length direction of the positioning arm. When the size of the flange changes and the distance from the drilling position to the center of the flange changes, the positioning holes formed at different positions can correspond to different drilling positions, so that the flange can be quickly adapted without replacing the positioning arm. The operation steps of the flange machining tool are simplified, and the machining efficiency of the flange is improved. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 A front view structural schematic diagram of a flange machining tool in an embodiment of the present disclosure is shown.
[0025] Figure 2 A local enlarged view of the flange machining tool in an embodiment of the present disclosure at A is shown.
[0026] Figure 3 A right view structural schematic diagram of a flange machining tool in an embodiment of the present disclosure is shown.
[0027] MARKS IN THE DRAWINGS
[0028] 1, base; 11, outer edge; 2, guide rod; 21, elastic piece; 22, clamping block; 23, circular arc groove; 3, connecting rod; 31, elastic support block; 4, index plate; 41, index hole; 5, positioning arm; 51, pin hole; 52, positioning hole; 53, sleeve; 531, flange; 532, notch; 533, avoidance section; 534, limiting section; 54, fastening screw; 55, guide wheel; 6, rotating shaft. DETAILED DESCRIPTION
[0029] In order to make the purpose, characteristics and advantages of the utility model more obvious and easy to understand, please refer to the drawings. It should be known that the structure, ratio, size and the like shown in the drawings attached to the present specification are merely used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the limiting conditions of the implementation of the utility model, therefore, any modification of structure, change of ratio relationship or adjustment of size, without affecting the effects and purposes that can be produced by the utility model, should still fall within the range covered by the disclosed technical content of the utility model.
[0030] In the description of the utility model, the orientation or positional relationship indicated by the limiting 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 merely for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.
[0031] Figure 1 A front structure schematic diagram of a flange machining tool is shown in an embodiment of the present disclosure. Please refer to Figure 1 , the flange machining tool comprises a base 1 supporting a flange plate. An index plate 4 is arranged on the base 1. A positioning arm 5 is rotatably arranged on the base 1. When the flange plate is arranged on the base 1, the index plate 4 is arranged in a flange hole of the flange plate, and a rotation shaft 6 of the positioning arm 5 coincides with an axis of the flange plate. The positioning arm 5, the index plate 4 and the flange plate are parallel. Among them, along the rotation shaft 6 of the positioning arm 5, a pin hole 51 and a positioning hole 52 are through-opened on the positioning arm 5. An index hole 41 is opened on the index plate 4 and communicates with the pin hole 51. A plurality of index holes 41 are arranged around the rotation shaft 6 of the positioning arm 5, and adjacent index holes 41 form the same angle around the rotation shaft 6 of the positioning arm 5. The machining position of the guide hole of the flange plate is determined by the position of the positioning hole 52, and the angle of the positioning arm 5 is determined by the position cooperation of the index hole 41 and the pin hole 51 on the positioning arm 5. That is, the machining position of the guide hole on the flange plate is determined by the index hole 41 pre-opened on the index plate 4 and the length of the positioning arm 5 itself. When machining flange plates of different size specifications, only the index hole 41 of the corresponding position needs to be pre-opened, and the positioning arm 5 of the corresponding length needs to be arranged, without the need to re-arrange the tool. A set of flange machining tools can realize the machining of guide holes of flange plates of different size specifications and different numbers of holes, thereby reducing the tool cost.
[0032] Please refer to Figure 1The base 1 is further provided with a guide rod 2. When the flange plate is arranged on the base 1, the guide rod 2 is perpendicular to the arc surface of the flange plate. The guide rod 2 is provided with a clamping block 22 at the end close to the index plate 4. The guide rod 2 between the clamping block 22 and the base 1 is sleeved with an elastic element 21. In this embodiment, the elastic element 21 can be a spring. The guide rod 2 guides the extension direction of the elastic element 21. After the flange plate is arranged on the base 1, the elastic element 21 pushes the clamping block 22 to abut against the arc side surface of the flange plate. The plurality of clamping blocks 22 cooperate to fix the position of the flange plate in the horizontal direction.
[0033] Preferably, the surface of the clamping block 22 close to the index plate 4 is recessed to the side away from the index plate 4, forming a circular arc groove 23. The circular arc groove 23 fits the arc side surface of the flange plate, improving the contact area between the clamping block 22 and the flange plate, and more stably fixing the position of the flange plate.
[0034] More preferably, an outer edge 11 is arranged on the base 1, and the elastic element 21 is arranged between the outer edge 11 and the clamping block 22. The guide rod 2 passes through the outer edge 11. At this time, one end of the elastic element 21 in contact with the outer edge 11. The outer edge 11 supports the guide rod and the elastic element 21.
[0035] Figure 3 A right view structural schematic diagram of the flange machining tool is shown. Please refer to Figure 1 and Figure 3 In the direction away from the rotation shaft 6 of the positioning arm 5, a plurality of index holes 41 are arranged on the index plate 4 in sequence. The number of index holes 41 in different groups is different, and the included angle formed by adjacent index holes 41 in the same group around the rotation shaft 6 of the positioning arm 5 is the same. Correspondingly, a plurality of pin holes 51 are arranged on the positioning arm 5 in the direction away from the rotation shaft 6 of the positioning arm 5, to respectively communicate with different groups of index holes 41. Different groups of index holes 41 correspond to flange plates with different numbers of drill holes. When machining flange plates with different numbers of drill holes, only different index holes 41 and pin holes 51 need to be corresponded, and the flange plate can be quickly adapted without replacing the index plate 4. The operation steps of the flange machining tool are simplified, and the machining efficiency of the flange plate is improved.
[0036] Preferably, the base 1 is annular. The positioning arm 5 is provided with a guide wheel 55 at the end away from the index plate 4. The rotation axis 6 of the guide wheel 55 is parallel to the rotation axis 6 of the positioning arm 5. The arc surface of the guide wheel 55 contacts the arc outer surface of the annular base 1. The base 1 supports the end of the positioning arm 5 away from the rotation axis 6, so as to better support the positioning arm 5 and enhance the overall stability of the structure of the positioning arm 5. In this embodiment, the connecting rods 3 are arranged at the inner diameter of the annular base 1, and the connecting rods 3 support the index plate 4. The elastic supporting blocks 31 are further arranged on the connecting rods 3. When the flange plate is arranged on the base 1, the elastic supporting blocks 31 contact and support the flange plate. The elastic supporting blocks 31 can be rubber blocks. By using the elasticity of the elastic supporting blocks 31, it is ensured that each connecting rod 3 supports and contacts the flange plate, so as to avoid machining errors, so that the connecting rods 3 do not contact and support the flange plate, and affect the support stability of the flange plate.
[0037] More preferably, at least two positioning holes 52 are arranged on the positioning arm 5 along the length direction of the positioning arm 5. When the size of the flange plate changes, the distance from the drilling position to the center of the flange plate changes. The positioning holes 52 arranged at different positions can correspond to different drilling positions, so as to adapt to the size change of the flange plate, without the need to replace the positioning arm 5 to quickly adapt to the flange plate. The operation steps of the flange machining tool are simplified, and the machining efficiency of the flange plate is improved.
[0038] Figure 2 A partial enlarged view of the flange machining tool of an embodiment of the present disclosure is shown at A. Please refer to Figure 1 and Figure 2 A sleeve 53 is arranged in the positioning hole 52. The drilling equipment passes through the positioning hole 52 along the sleeve 53, so as to avoid the drilling equipment contacting the inner wall of the positioning hole 52 and affecting the positioning accuracy of the positioning hole 52. Even if the drilling equipment contacts and damages the sleeve 53, the sleeve 53 can be repaired by replacement, so as to avoid replacing the entire positioning arm 5 when the positioning hole 52 is damaged. The replacement of the positioning sleeve is simpler, the maintenance of the flange machining tool is simplified, and the maintenance cost of the flange machining tool is reduced.
[0039] Preferably, the part of the sleeve 53 extending into the positioning hole 52 is provided with a radial flange 531. The fastening screw 54 is arranged on the positioning arm 5. The flange 531 is arranged between the fastening screw 54 and the positioning arm 5. The head of the fastening screw 54 presses the flange 531 on the positioning arm 5, so as to fix the position of the sleeve 53.
[0040] More preferably, the edge of the flange 531 is provided with a notch 532. The notch 532 includes an avoidance section 533 and a limiting section 534. The avoidance section 533 runs through the flange 531 from the surface of the flange 531 away from the positioning arm 5 to the surface of the flange 531 close to the positioning arm 5, and the limiting section 534 does not run through the flange 531. When the avoidance section 533 of the sleeve 53 is aligned with the head of the fastening screw 54, the sleeve 53 can be removed, at which time the fastening screw 54 no longer restricts the movement of the flange 531 to the side away from the positioning arm 5. When the limiting section 534 of the sleeve 53 is aligned with the head of the fastening screw 54, the sleeve 53 is fixed to the positioning arm 5, at which time the flange 531 of the limiting section 534 is arranged between the fastening screw 54 and the positioning arm 5.
[0041] The specific work flow of the utility model is as follows:
[0042] When the machining position of the guide hole on the positioning flange plate is positioned, the operator first extrudes the clamping block 22 on one side of the elastic member 21, and then places the flange plate on the base 1. The operator no longer contacts the clamping block 22. The elastic member 21 pushes the clamping block to clamp the flange plate. Then, according to the drilling position and the number of holes of the flange plate, the index hole 41 and the positioning hole 52 are selected. The positioning arm 5 is rotated around the rotating shaft 6, and the pin hole 51 and the selected index hole 41 are aligned in turn. When the pin hole 51 and the index hole 41 are aligned, the position of the selected positioning hole 52, that is, the machining position of the guide hole on the flange plate.
[0043] The technical features of the above-described embodiments can be combined arbitrarily. 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 as within the scope of the present disclosure.
[0044] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A flange machining tooling, characterized by, The flange processing tool comprises: a base supporting the flange plate; an index plate arranged on the base; a positioning arm rotatably arranged on the base; when the flange plate is arranged on the base, the index plate is arranged in a flange hole of the flange plate, and the rotation axis of the positioning arm coincides with the axis of the flange plate; the positioning arm, the index plate and the flange plate are parallel; wherein, along the rotation axis of the positioning arm, a pin hole and a positioning hole are arranged through the positioning arm; an index hole is arranged through the index plate and communicates with the pin hole; a plurality of index holes are arranged around the rotation axis of the positioning arm, and adjacent index holes form the same angle around the rotation axis of the positioning arm.
2. The flange machining tooling fixture of claim 1, wherein: A plurality of groups of index holes are arranged in sequence on the index plate in a direction away from the rotation axis of the positioning arm; the number of index holes in different groups is different, and adjacent index holes in the same group form the same angle around the rotation axis of the positioning arm; correspondingly, a plurality of pin holes are arranged on the positioning arm in a direction away from the rotation axis of the positioning arm to respectively communicate with the index holes in different groups.
3. The flange machining tooling fixture of claim 1, wherein: At least two guide rods are arranged on the base; when the flange plate is arranged on the base, the guide rods are perpendicular to the arc surface of the flange plate; a clamping block is arranged at the end of the guide rod close to the index plate; an elastic member is sleeved on the guide rod between the clamping block and the base.
4. The flange machining tooling fixture of claim 3, wherein: The surface of the clamping block close to the index plate is recessed to the side away from the index plate to form an arc recess.
5. The flange machining tooling fixture of claim 4, wherein: An outer edge is arranged on the base in extension; the elastic member is arranged between the outer edge and the clamping block; the guide rod passes through the outer edge.
6. The flange machining tooling fixture of claim 1, wherein: The base is annular; a guide wheel is arranged at the end of the positioning arm away from the index plate; the rotation axis of the guide wheel is parallel to the rotation axis of the positioning arm; the arc surface of the guide wheel contacts the arc outer vertical surface of the annular base.
7. The flange machining tooling fixture of claim 1, wherein: At least two positioning holes are arranged on the positioning arm along the length direction of the positioning arm.
8. The flange machining tooling fixture of claim 1, wherein: A sleeve is arranged in the positioning hole.
9. The flange machining tooling fixture of claim 8, wherein: The part of the sleeve extending into the positioning hole is provided with a radial flange; a fastening screw is arranged on the positioning arm; the flange is arranged between the fastening screw and the positioning arm.
10. The flange machining tooling fixture of claim 9, wherein: The edge of the flange is provided with a notch; the notch comprises an avoiding section and a limiting section; the avoiding section penetrates the flange from the surface of the flange away from the positioning arm to the surface of the flange close to the positioning arm, and the limiting section does not penetrate the flange.