Drilling device for flange production
By introducing a positioning mechanism into the flange drilling device, and utilizing components such as a rotating table, support plate, and positioning pin, stability and precision in the flange drilling process are achieved, solving the problems of low processing efficiency and low precision in existing technologies, and improving overall processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING BAIHUI MASCH MFG CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-15
AI Technical Summary
Existing flange drilling equipment requires frequent adjustments to the flange position and angle when machining multiple holes, resulting in low machining efficiency, high error rates, and reduced accuracy.
The positioning mechanism, including a rotating table, support plate, threaded rod, clamping plate and positioning pin, ensures the stability and accuracy of the flange during the drilling process. The drilling device is driven to move along a predetermined trajectory by a linear module, avoiding additional angle measurement and adjustment.
It improves the processing efficiency and accuracy of flange drilling, reduces the complexity and time cost of manual operation, and ensures the stability and precision of the flange during the drilling process.
Smart Images

Figure CN224238867U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flange production technology, and specifically to a drilling device for flange production. Background Technology
[0002] A flange is a pipe fitting used to connect pipes, valves, pumps, and other equipment. It is reliable and offers strong sealing and connection capabilities. Widely used in industrial and construction sectors, such as petrochemical, power, chemical, shipbuilding, and pharmaceutical industries, common flange types include welded flanges, butt-welded flanges, blind flanges, and flange gaskets. Flanges are typically made of carbon steel, stainless steel, or alloy steel, selected based on the specific application environment and requirements. During manufacturing, holes are cut into the flange plate according to the connection dimensions. During installation, two flange plates are butt-jointed, and bolts are then installed within the holes for secure fastening.
[0003] Patent CN218775727U discloses a flange drilling tooling, including a drilling machine, a limiting device, and a convenient device. A motor is fixedly connected to the surface of the drilling machine, a control box is fixedly connected to the surface of the drilling machine, and a drill bit is provided on the surface of the drilling machine. The limiting device is installed on the surface of the drilling machine by means of the convenient device. The limiting device includes a mounting plate, which is located on the surface of the drilling machine. Two limiting plates are slidably connected to the side of the mounting plate near the drill bit. The cross-section of the two limiting plates is "L" shaped, and a sliding groove is formed on the surface of the mounting plate.
[0004] The above-mentioned flange drilling tooling has the following problems: after drilling a single hole, the flange position and angle need to be adjusted frequently until all flange holes are processed. This is not only time-consuming, but also prone to errors, affecting processing accuracy and resulting in low processing efficiency. Utility Model Content
[0005] This invention provides a drilling device for flange production to address the problems of existing technologies.
[0006] The objective of this utility model can be achieved through the following technical solution: A drilling device for flange production, comprising: a base plate, a drilling mechanism, and a positioning mechanism. The drilling mechanism includes a mounting plate fixedly disposed on the left side of the base plate, a linear module disposed on the mounting plate, and a drilling device disposed on the linear module. The positioning mechanism includes a rotating table disposed on the right side of the base plate, a support plate fixedly disposed on the rotating table, a clamping frame disposed on the side end of the base plate, a threaded rod disposed on the clamping frame, and a clamping plate disposed at the lower end of the threaded rod. The threaded rod is threadedly connected to the clamping frame. A positioning rod is disposed on the side end of the clamping plate, and a positioning hole is provided through the end of the positioning rod. A positioning pin is inserted into the positioning hole.
[0007] In a further improvement, the linear module includes a cylinder fixedly mounted on the side of the mounting plate and a connecting plate mounted on the end of the cylinder piston rod, and the drilling device is mounted on the connecting plate.
[0008] In a further improvement, a guide rod is provided on the base plate, a guide seat is provided on the side end of the connecting plate, and the upper end of the guide rod is slidably disposed in the guide seat.
[0009] As a further improvement, the support plate is provided with a positioning boss.
[0010] In a further improvement, the included angle between the axes of the working end of the drilling device, the threaded rod, and the positioning hole is the same as the included angle between the adjacent locking hole of the flange.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This utility model, through its positioning mechanism, avoids the need for angle measurement and adjustment of the flange after single-hole machining, thus reducing the complexity and time cost of manual operation;
[0013] 2. This utility model utilizes components such as positioning bosses, clamping plates, and positioning pins to ensure the stability and accuracy of the flange during the drilling process, and avoids processing errors caused by displacement. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a front view of the present invention;
[0016] Figure 3 This is a schematic diagram of the positioning mechanism of this utility model.
[0017] In the diagram, 1 is the base plate; 11 is the guide rod; 2 is the drilling mechanism; 21 is the mounting plate; 22 is the linear module; 221 is the cylinder; 222 is the connecting plate; 2221 is the guide seat; 23 is the drilling device; 3 is the positioning mechanism; 31 is the rotating table; 32 is the support plate; 321 is the positioning boss; 33 is the clamping frame; 34 is the threaded rod; 35 is the clamping plate; 351 is the positioning rod; 352 is the positioning hole; and 353 is the positioning pin. Detailed Implementation
[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] The following is a description of the embodiments and appendices. Figures 1-3 The technical solution of this utility model will be further described below.
[0021] Example 1
[0022] A drilling device for flange production includes: a base plate 1, a drilling mechanism 2, and a positioning mechanism 3. The drilling mechanism 2 includes a mounting plate 21 fixedly mounted on the left side of the base plate 1, a linear module 22 mounted on the mounting plate 21, and a drilling device 23 mounted on the linear module 22. The positioning mechanism 3 includes a rotating platform 31 mounted on the right side of the base plate 1, a support plate 32 fixedly mounted on the rotating platform 31, a clamping frame 33 mounted on the side end of the base plate 1, a threaded rod 34 mounted on the clamping frame 33, and a clamping plate 35 mounted at the lower end of the threaded rod 34. The threaded rod 34 is threadedly connected to the clamping frame 33. A positioning rod 351 is provided on the side end of the clamping plate 35. A positioning hole 352 is provided through the end of the positioning rod 351. A positioning pin 353 is inserted into the positioning hole 352. The included angle of the axes of the working end of the drilling device 23, the threaded rod 34, and the positioning hole 352 is the same as the included angle of the adjacent locking hole of the flange.
[0023] like Figures 1-3As shown, the operation process of this utility model is as follows: First, the flange to be processed is placed on the support plate 32. Then, the threaded rod 34 is rotated, and the clamping plate 35 is pressed down, so that the flange fits tightly against the support plate 32, achieving initial positioning. Next, the drilling mechanism 2 is started, and the linear module 22 drives the drilling device 23 to move along a predetermined trajectory to precisely drill holes in the flange. After completing the single hole processing, the threaded rod 34 is rotated in the opposite direction, and the clamping plate 35 is moved up to release the positioning. Subsequently, the rotating table 31 is rotated so that the positioning hole of the positioning rod 351 is aligned with the flange hole, and the positioning pin 353 is inserted to complete the locking. Since the included angle of the working end of the drilling device 23, the threaded rod 34 and the positioning hole 352 is consistent with the included angle of the adjacent locking hole of the flange, the next hole can be drilled directly after locking without additional angle measurement and adjustment, which significantly improves processing efficiency.
[0024] As a further preferred embodiment, the linear module 22 includes a cylinder 221 fixedly disposed on the side of the mounting plate 21 and a connecting plate 222 disposed at the end of the piston rod of the cylinder 221. The drilling device 23 is disposed on the connecting plate 222. When the cylinder 221 is driven, the connecting plate 222 drives the drilling device 23 to move precisely along a predetermined trajectory, ensuring the accuracy and efficiency of the drilling position.
[0025] As a further preferred embodiment, a guide rod 11 is provided on the base plate 1, and a guide seat 2221 is provided on the side end of the connecting plate 222. The upper end of the guide rod 11 is slidably disposed in the guide seat 2221. Through the cooperation of the guide rod 11 and the guide seat 2221, the movement stability of the drilling device 23 is further improved, ensuring the accuracy of drilling.
[0026] As a further preferred embodiment, the support plate 32 is provided with a positioning boss 321.
[0027] Specifically, the positioning boss 321 precisely matches the positioning hole on the flange. When the flange is placed on the support plate 32, the positioning boss 321 can quickly guide and fix the position of the flange, ensuring that the flange remains stable during drilling and preventing displacement of the flange during processing. This not only improves the processing accuracy of the flange but also reduces the time for manual positioning and improves the overall production efficiency.
[0028] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A drilling apparatus for flange production, characterized in that, include: The base plate, drilling mechanism, and positioning mechanism are provided. The drilling mechanism includes a mounting plate fixedly mounted on the left side of the base plate, a linear module mounted on the mounting plate, and a drilling device mounted on the linear module. The positioning mechanism includes a rotating table mounted on the right side of the base plate, a support plate fixedly mounted on the rotating table, a clamping frame mounted on the side of the base plate, a threaded rod mounted on the clamping frame, and a clamping plate mounted at the lower end of the threaded rod. The threaded rod is threadedly connected to the clamping frame. A positioning rod is provided at the side end of the clamping plate, and a positioning hole is provided through the end of the positioning rod. A positioning pin is inserted into the positioning hole.
2. The drilling device for flange production according to claim 1, characterized in that, The linear module includes a cylinder fixedly mounted on the side of the mounting plate and a connecting plate mounted on the end of the cylinder piston rod, and the drilling device is mounted on the connecting plate.
3. A drilling device for flange production according to claim 2, characterized in that, A guide rod is provided on the base plate, and a guide seat is provided on the side end of the connecting plate. The upper end of the guide rod is slidably disposed in the guide seat.
4. A drilling device for flange production according to claim 1, characterized in that, The support plate is provided with a positioning boss.
5. A drilling device for flange production according to claim 1, characterized in that, The included angle between the axes of the working end of the drilling device, the threaded rod, and the positioning hole is the same as the included angle between the adjacent locking hole of the flange.