Flange plate machining device and using method thereof

Abstract

The invention relates to the technical field of flange plate machining, and discloses a flange plate machining device and a using method thereof.The flange plate machining device comprises a base, a drill bit and a positioning mechanism, the positioning mechanism is arranged on the base, and the drill bit is arranged above the positioning mechanism; the positioning mechanism comprises an upper positioning mechanism and a lower positioning mechanism, the lower end of the upper positioning mechanism is connected with a lifting mechanism, and the lifting mechanism is used for adjusting the vertical position; the lower positioning mechanism is connected with a rotating mechanism used for adjusting the position in the horizontal direction, and the upper positioning mechanism and the lower positioning mechanism move relatively and are matched to fix the flange plate. Through mutual clamping of the upper positioning mechanism and the lower positioning mechanism, a flange plate is fixed in multiple directions and positions, and the machining stability and machining precision are improved; and meanwhile, the upper positioning mechanism and the lower positioning mechanism are in mutual movement fit, so that the flange plate is adjusted to different machining stations, and the machining flexibility and convenience are improved.

Description

Technical Field

[0001] The invention relates to the technical field of flange processing, and in particular to a flange processing device and a use method thereof. Background Art

[0002] As an important component of pipeline connection, the drilling process of flanges plays an important role in industrial manufacturing. The drilling process of flanges directly affects the sealing, pressure bearing capacity and overall stability of the pipeline system. Therefore, it is very important to ensure the quality and accuracy of the drilling.

[0003] At present, the conventional method of drilling holes in flanges is to manually locate the center of the flange, then measure and mark the holes one by one along its outer ring edge, and then transfer the marked flanges to the drilling equipment for drilling. The whole operation process is cumbersome, the drilling efficiency is low, and the drilling accuracy needs to be improved.

[0004] Application number CN201920740385.3 discloses a hole-opening device for flange production, including a support seat, a support plate is fixed to the top outer wall of the support seat by bolts, a circular groove is opened in the middle of the top outer wall of the support plate, and a circular disc is inserted in the inner wall of the circular groove, a vertically arranged pneumatic telescopic rod is fixed to the middle of the bottom outer wall of the support plate by bolts, and the top of the pneumatic telescopic rod passes through the bottom outer wall of the support plate and is fixed to the bottom outer wall of the circular disc by bolts, the outer wall of the bottom of the circular disc is screwed with equidistantly distributed circular positioning rods, and the outer wall of the locating rod is sleeved with a spring member, and the inner wall of the bottom of the circular groove is opened with equidistantly distributed circular positioning holes. However, the above device cannot adapt to opening holes for flanges of different diameters during use, and the number and position of the openings cannot be adjusted. Summary of the invention

[0005] The present invention aims at the shortcomings in the prior art and provides a flange processing device and a use method thereof.

[0006] In order to solve the above technical problems, the present invention is solved by the following technical solutions.

[0007] A flange processing device comprises a base, a drill bit and a positioning mechanism, wherein the positioning mechanism is arranged on the base and the drill bit is arranged above the positioning mechanism; the positioning mechanism comprises an upper positioning mechanism and a lower positioning mechanism, wherein the lower end of the upper positioning mechanism is connected with a lifting mechanism, and the lifting mechanism is used to adjust the vertical position; the lower positioning mechanism is connected with a rotating mechanism, and the rotating mechanism is used to adjust the horizontal position, and the upper positioning mechanism and the lower positioning mechanism cooperate in relative motion to fix the flange.

[0008] Preferably, the upper positioning mechanism includes an annular frame, an upper pressure piece and a first cylinder. A plurality of upper pressure pieces are arranged through the inner side of the annular frame. The upper pressure pieces are driven to move horizontally by the first cylinder. The first cylinder is arranged on the outer side of the annular frame.

[0009] Preferably, the lifting mechanism includes a lifting rod, a workbench and a second cylinder. The upper end of the lifting rod is fixedly connected to the annular frame, and the lower end of the lifting rod penetrates into the workbench and is connected to the second cylinder. The second cylinder drives the annular frame to move in the vertical direction through the lifting rod.

[0010] Preferably, a distance sensor is provided on the inner side of the annular frame, and the distance sensor is connected to a PLC controller, and the PLC controller controls the connection between the first cylinder and the second cylinder.

[0011] Preferably, the upper pressing piece is in an inverted L-shape, and the length of the protruding portion at the upper end is between 5 mm and 15 mm.

[0012] Preferably, the lower positioning mechanism includes a rotating shaft, a lower pressure piece and an air expansion shaft. A moving cavity is provided in the rotating shaft, the air expansion shaft is arranged in the moving cavity, and multiple lower pressure pieces are arranged through the outside of the rotating shaft. The outer surface of the air expansion shaft is connected to the inner side of the lower pressure piece to push the lower pressure piece to move horizontally.

[0013] Preferably, the rotating mechanism includes a shaft seat and a driving motor. The shaft seat is nested in the bottom of the rotating shaft. A rotating hole is provided at the lower end of the rotating shaft, and the rotating hole is connected to the output end of the driving motor.

[0014] Preferably, the pressing member is L-shaped, and the length of the protruding portion at the lower end is between 5 mm and 15 mm.

[0015] A flange processing method comprises the following steps:

[0016] Adjust the upper positioning mechanism and the lower positioning mechanism to their initial positions;

[0017] Put the flange to be processed into the upper end of the rotating shaft, slide it in until the lower pressure piece is flat, and then the air expansion shaft in the rotating shaft starts to work. According to the actual size of the flange, the pressure of the input gas is calculated by the expansion formula, thereby driving the lower pressure piece to be pushed out to the target length;

[0018] The lifting mechanism is turned on to work. When the annular frame is falling, the distance sensor is used to sense and obtain the current position of the flange, including sensing whether there is an object and the distance, and the judgment signal is returned to the PLC controller. The PLC controller controls the first cylinder and the second cylinder to move according to the signal, and presses the upper pressure piece against the upper side and the outer side of the flange to complete the fixation;

[0019] Turn on the drill bit to drill holes on the fixed flange. When the processing position needs to be adjusted, the PLC controller controls the first cylinder and the second cylinder to lift the upper pressure piece to leave a gap between the upper pressure piece and the flange, and then controls the motor to drive the shaft to rotate and adjust to the target processing position until all processing work is completed.

[0020] Preferably, in the step of calculating the pressure of the input gas by an expansion formula, the expansion formula is: Wherein, ΔD is the change in the expansion diameter, D0 is the initial diameter, P is the air pressure, and E is the Young's modulus of the material of the lower pressing piece.

[0021] Due to the adoption of the above technical scheme, the present invention has significant technical effects: the present invention fixes the flange in multiple directions by clamping the upper positioning mechanism and the lower positioning mechanism against each other, thereby improving the stability and processing accuracy during processing; at the same time, the upper positioning mechanism and the lower positioning mechanism move and cooperate with each other, so that the flange can be adjusted to different processing positions, thereby improving the flexibility and convenience of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a flange processing device and a method of using the same according to the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of the structure at A;

[0024] Figure 3 It is a schematic cross-sectional structure diagram of a lower positioning mechanism in a flange processing device and a method for using the same according to the present invention;

[0025] Figure 4 It is a schematic diagram of the top view of the upper positioning mechanism and the lower positioning mechanism in a flange processing device and a method for using the same according to the present invention;

[0026] Figure 5 It is a circuit control schematic diagram of a flange processing device and a method for using the same according to the present invention;

[0027] Figure 6 It is a schematic diagram of working steps in a flange processing device and a method for using the same according to the present invention.

[0028] In the figure: 1-base, 2-drill bit, 31-annular frame, 32-upper pressure piece, 33-first cylinder, 34-distance sensor, 41-lifting rod, 42-workbench, 51-rotating shaft, 52-lower pressure piece, 53-gas expansion shaft, 54-moving cavity, 6-axle seat, 61-rotating hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] Example 1

[0031] like Figures 1 to 4 As shown, it shows a flange processing device provided by an embodiment of the present application, including a base 1, a drill bit 2, and a positioning mechanism, wherein the positioning mechanism is arranged on the base 1, and the drill bit 2 is arranged above the positioning mechanism; the positioning mechanism includes an upper positioning mechanism and a lower positioning mechanism, wherein the lower end of the upper positioning mechanism is connected to a lifting mechanism, and the lifting mechanism is used to adjust the vertical position; the lower positioning mechanism is connected to a rotating mechanism, and the rotating mechanism is used to adjust the horizontal position, and the upper positioning mechanism and the lower positioning mechanism cooperate with each other to fix the flange. In this embodiment, the upper left position of the outer side and the lower right position of the inner side of the flange are fixed respectively by the upper positioning mechanism and the lower positioning mechanism, and a fixed diagonal is formed from the center position of the flange to the outer side, which improves the stability during processing, reduces the processing deviation caused by the offset caused by the processing vibration, and also ensures the processing accuracy during the processing.

[0032] The upper positioning mechanism includes an annular frame 31, an upper pressing piece 32 and a first cylinder 33. A plurality of upper pressing pieces 32 are arranged through the inner side of the annular frame 31. The upper pressing pieces 32 are driven to move in the horizontal direction by the first cylinder 33. The first cylinder 33 is arranged on the outer side of the annular frame 31. In this embodiment, the upper pressing piece 32 is moved inside the annular frame 31 by the first cylinder 33. The upper pressing piece 32 pushes out the annular frame 31 when fixing the flange. When in a non-processing state or a moving state, the upper pressing piece 32 returns to the initial position of the annular frame 31.

[0033] The lifting mechanism includes a lifting rod 41, a workbench 42 and a second cylinder (not shown in the figure). The upper end of the lifting rod 41 is fixedly connected to the annular frame 31, and the lower end of the lifting rod 41 penetrates into the workbench 42 and is connected to the second cylinder. The second cylinder drives the annular frame 31 to move in the vertical direction through the lifting rod 41. In this embodiment, the lifting rod 41 drives the annular frame 31 to move up and down, and can be adjusted up and down according to different widths of the flange, and the operation flexibility is strong.

[0034] A distance sensor 34 is provided inside the annular frame 31, and the distance sensor 34 is connected to a PLC controller, and the PLC controller controls the connection between the first cylinder 33 and the second cylinder. In this embodiment, the distance sensor 34 first determines the height position of the flange. When the annular frame 31 is descending, the distance sensor 34 recognizes an object signal and returns a signal to the PLC controller, and at the same time senses and obtains the distance to the side of the flange. The PLC controller then drives the first cylinder 33 to drive the upper pressure piece 32 inward to the target position, completes the fixing work, and improves the stability of the processing.

[0035] The upper pressing piece 32 is in an inverted L-shape, and the length of the protruding portion at the upper end is between 5mm and 15mm. The lower pressing piece 52 is in an L-shape, and the length of the protruding portion at the lower end is between 5mm and 15mm. The upper pressing piece 32 and the lower pressing piece 52 have a certain thickness in the annular frame 31 and the rotating shaft 51, respectively, which is the radius range that can be adjusted for different flange processing. The thickness can be adjusted according to actual conditions and has good adaptability.

[0036] The lower positioning mechanism includes a rotating shaft 51, a lower pressing piece 52 and an air expansion shaft 53. A moving cavity 54 is provided in the rotating shaft 51. The air expansion shaft 53 is provided in the moving cavity 54. A plurality of lower pressing pieces 52 are provided through the outer side of the rotating shaft 51. The outer surface of the air expansion shaft 53 is connected to the inner side of the lower pressing piece 52 to push the lower pressing piece 52 to move horizontally. In this embodiment, the air expansion shaft 53 is adjusted according to the actual inner diameter of the flange, which improves the processing flexibility.

[0037] The rotating mechanism includes a shaft seat 6 and a driving motor. The shaft seat 6 is nested at the bottom of the rotating shaft 51. The lower end of the rotating shaft 51 is provided with a rotating hole 61, and the rotating hole 61 is connected to the output end of the driving motor. In this embodiment, the rotating shaft 51 can be rotated and adjusted according to the actual situation of flange processing, so that different processing surfaces are aligned with the drill bit 2, which improves the convenience of processing.

[0038] Example 2

[0039] like Figures 1 to 6 As shown, a flange processing method comprises the following steps:

[0040] Adjust the upper positioning mechanism and the lower positioning mechanism to their initial positions. In this embodiment, the initial position of the upper positioning mechanism is at the top within its limit, and the lower end surface of the upper pressing member 32 is flush with the inner surface of the annular frame 31. The initial position of the lower positioning mechanism is that the upper end surface of the lower positioning member is flush with the outer surface of the rotating shaft 51, so that the flange with the largest range of data can be accommodated, which is convenient for subsequent adjustment and fixation;

[0041] The flange to be processed is placed on the upper end of the rotating shaft 51, and after the lower pressure piece 52 is slid in and laid flat, the gas expansion shaft 53 in the rotating shaft 51 is started to work. According to the actual size of the flange, the pressure of the input gas is calculated by the expansion formula, thereby driving the lower pressure piece 52 to be pushed out to the target length; in this embodiment, the target length plus the radius of the rotating shaft 51 is the radius of the current flange to be processed, so that the lower pressure piece 52 is fixed from the inner hole and the lower side of the flange.

[0042] The lifting mechanism is turned on to work. During the falling process of the annular frame 31, the distance sensor 34 senses and obtains the current position of the flange, including sensing whether there is an object and the distance, and returns a judgment signal to the PLC controller. The PLC controller controls the first cylinder 33 and the second cylinder to move according to the signal, and presses the upper pressure piece 32 against the upper and outer sides of the flange to complete the fixation. In this embodiment, during the movement of the annular frame 31 from top to bottom, the distance sensor 34 first obtains the processing object, then stops descending, and starts the first cylinder 33 to push the lower pressure piece 52 out horizontally. At the same time, the distance between the annular frame 31 and the flange is also obtained, and the push-out distance is obtained, so that the flange is fixed as a whole.

[0043] The drill bit 2 is turned on to perform drilling work on the fixed flange. When the processing position needs to be adjusted, the PLC controller controls the first cylinder 33 and the second cylinder to lift the upper pressure piece 32 to leave a gap between the upper pressure piece 32 and the flange, and then controls the motor to drive the rotating shaft 51 to rotate and adjust to the target processing position until all processing work is completed.

[0044] Step 1: Calculate the pressure of the input gas by the expansion formula. The expansion formula is: Wherein, ΔD is the change in the expansion diameter, D0 is the initial diameter, P is the air pressure, and E is the Young's modulus of the material of the lower pressing piece.

[0045] The present invention fixes the flange in multiple directions by clamping the upper positioning mechanism and the lower positioning mechanism together, thereby improving the stability and processing accuracy during processing; at the same time, the upper positioning mechanism and the lower positioning mechanism cooperate with each other in movement, so that the flange can be adjusted to different processing positions, thereby improving the flexibility and convenience of processing.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment that includes a series of elements are inherent to the elements. In the absence of more restrictions, the elements limited by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or equipment that includes the elements. In addition, the above-mentioned technical solution provided in the embodiment of the present application is consistent with the corresponding technical solution in the prior art in principle, and the part is not described in detail, so as not to repeat too much.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flange processing device, characterized in that: It includes a base, a drill bit, and a positioning mechanism. The positioning mechanism is arranged on the base, and the drill bit is arranged above the positioning mechanism; the positioning mechanism includes an upper positioning mechanism and a lower positioning mechanism. The lower end of the upper positioning mechanism is connected with a lifting mechanism, and the lifting mechanism is used to adjust the vertical position; the lower positioning mechanism is connected with a rotating mechanism, and the rotating mechanism is used to adjust the horizontal position. The upper positioning mechanism and the lower positioning mechanism cooperate with each other in relative motion to fix the flange.

2. A flange processing device according to claim 1, characterized in that: The upper positioning mechanism comprises an annular frame, an upper pressing piece and a first cylinder. A plurality of upper pressing pieces are arranged through the inner side of the annular frame. The upper pressing piece is driven to move in a horizontal direction by the first cylinder. The first cylinder is arranged on the outer side of the annular frame.

3. A flange processing device according to claim 2, characterized in that: The lifting mechanism includes a lifting rod, a workbench and a second cylinder. The upper end of the lifting rod is fixedly connected to the annular frame, and the lower end of the lifting rod penetrates into the workbench and is connected to the second cylinder. The second cylinder drives the annular frame to move in the vertical direction through the lifting rod.

4. A flange processing device according to claim 2, characterized in that: A distance sensor is arranged on the inner side of the annular frame, and the distance sensor is connected to a PLC controller, and the PLC controller controls the connection between the first cylinder and the second cylinder.

5. A flange processing device according to claim 2, characterized in that: The upper pressing piece is in an inverted L shape, and the length of the protruding part at the upper end is between 5mm and 15mm.

6. A flange processing device according to claim 1, characterized in that: The lower positioning mechanism includes a rotating shaft, a lower pressure piece and an air expansion shaft. A moving cavity is provided in the rotating shaft, and the air expansion shaft is arranged in the moving cavity. Multiple lower pressure pieces are arranged through the outside of the rotating shaft. The outer surface of the air expansion shaft is connected to the inner side of the lower pressure piece to push the lower pressure piece to move horizontally.

7. A flange processing device according to claim 4, characterized in that: The rotating mechanism comprises a shaft seat and a driving motor. The shaft seat is nested at the bottom of the rotating shaft. A rotating hole is arranged at the lower end of the rotating shaft, and the rotating hole is connected to the output end of the driving motor.

8. A flange processing device according to claim 4, characterized in that: The pressing piece is L-shaped, and the length of the protruding part at the lower end is between 5mm and 15mm.

9. A flange processing method according to any one of claims 1 to 8, characterized in that: The steps include: Adjust the upper positioning mechanism and the lower positioning mechanism to their initial positions; Put the flange to be processed into the upper end of the rotating shaft, slide it in until the lower pressure piece is flat, and then the air expansion shaft in the rotating shaft starts to work. According to the actual size of the flange, the pressure of the input gas is calculated by the expansion formula, thereby driving the lower pressure piece to be pushed out to the target length; The lifting mechanism is turned on to work. When the annular frame is falling, the distance sensor is used to sense and obtain the current position of the flange, including sensing whether there is an object and the distance, and the judgment signal is returned to the PLC controller. According to the signal, the PLC controller controls the first cylinder and the second cylinder to move respectively, and presses the upper pressure piece against the upper side and the outer side of the flange to complete the fixation; Turn on the drill bit to drill holes on the fixed flange. When the processing position needs to be adjusted, the PLC controller controls the first cylinder and the second cylinder to lift the upper pressure piece to leave a gap between the upper pressure piece and the flange, and then controls the motor to drive the shaft to rotate and adjust to the target processing position until all processing work is completed.

10. A flange processing method according to claim 9, characterized in that: Step 1: Calculate the pressure of the input gas by the expansion formula. The expansion formula is: Wherein, ΔD is the change in the expansion diameter, D0 is the initial diameter, P is the air pressure, and E is the Young's modulus of the material of the lower pressing piece.

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