Drilling device for welded joint production
By using a fixed plate inside the frame and a cylinder-driven screw system, combined with a scale plate and a drive motor, the problem of inaccurate fixing of traditional clamping plates is solved, enabling precise drilling of welded joints and improving processing quality.
Patent Information
- Application Number
- CN202520527647.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Traditional clamp fixing methods lack precise positioning when drilling holes for welded joints, resulting in inaccurate processing points and affecting the overall processing quality of the welded joints.
By using a fixed plate inside the frame and a cylinder-driven screw system, combined with a scale plate and a drive motor, precise positioning of the welding joint and accurate movement of the drilling machine can be achieved.
By combining the scale plate and the screw system, precise drilling of the welded joints was achieved, improving processing quality and accuracy.
Smart Images

Figure CN223889495U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding joint technology, and in particular to a drilling device for welding joint production. Background Technology
[0002] The production of welded joints involves selecting appropriate base materials and welding materials, depending on the application requirements and working environment. For example, carbon steel, stainless steel, and alloy steel are common material choices. Strict quality inspections are conducted on the selected materials to ensure that their chemical composition, mechanical properties, dimensional accuracy, and surface quality meet relevant standards and specifications. Based on the welded joint material, thickness, and process requirements, appropriate bevel types such as V-groove, U-groove, and J-groove are selected. Beveling is performed using methods such as machining, flame cutting, and plasma cutting, ensuring that the bevel dimensions and shape meet design requirements. According to the welded joint structure and process requirements, appropriate assembly positioning is determined through methods such as marking, template positioning, or jig positioning. Based on the welding materials, joint type, and process requirements, appropriate welding current and voltage are set to stabilize the welding process and ensure good weld formation. Welding speed is controlled to avoid weld quality problems caused by excessive speed or slowness. The welding sequence is rationally arranged according to the welded joint structure and stress distribution to reduce welding stress and deformation. Drilling holes in the welded joint is also necessary.
[0003] When drilling holes for welded joints, the precision of the drilling requires accurate clamping of the welded joint. However, the traditional method of fixing the joint directly with a clamping plate without positioning the clamping position results in inaccurate processing points, affecting the overall processing quality of the welded joint and causing great inconvenience. Therefore, there is an urgent need for a drilling device for welded joint production to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a drilling device for producing welded joints, which solves the problem in the prior art where the device is fixed directly by clamping plates without positioning the clamping position, resulting in inaccurate processing points and affecting the overall processing quality of the welded joint.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A drilling device for producing welded joints includes a frame. Fixed plates are provided on both inner sides of the frame, and cylinders are bolted to both sides of the frame. The output shafts of two cylinders pass through the sidewalls of the frame and are fixedly connected to one side of each of the two fixed plates. A scale plate is fixedly connected to one inner side of the frame, and one side of each of the two fixed plates is slidably connected to one side of the scale plate. A screw is rotatably connected to the upper inner side of the frame, and a drive motor is bolted to one outer side of the frame. One end of the screw passes through the sidewall of the frame and is connected to the output shaft of the drive motor. A nut seat is threaded to one end of the screw, and a drilling machine is mounted on the bottom of the nut seat.
[0007] Preferably, a slider is fixedly connected to one side of each of the two fixed plates, and both sliders are slidably connected to one side of the scale plate through a groove.
[0008] Preferably, the connection between the output shafts of the two cylinders and the frame is a sliding connection.
[0009] Preferably, one end of the screw is rotatably connected to the inner wall of the frame via a rotating shaft, and the other end of the screw passes through the side wall of the frame via a bearing sleeve.
[0010] Preferably, a sliding block is fixedly connected to one side of the nut seat, and the sliding block is slidably connected to the inner wall of the frame through a sliding groove.
[0011] Preferably, both fixing plates have fixing grooves on opposite sides.
[0012] This utility model has at least the following beneficial effects:
[0013] The weld joint to be drilled is placed between two fixed plates in the frame, and the weld joint is clamped and secured by the two fixed plates. The clamping position is adjusted according to the scale plate, and then the drilling machine is moved by the nut seat. With the help of the scale plate, the drilling machine is moved to the position to be drilled. Compared with the existing technology that directly fixes the joint with clamping plates without positioning the clamping position, resulting in inaccurate processing points and affecting the overall processing quality of the weld joint, the method proposed in this utility model allows the fixed plates to move independently and the drilling machine to move, and with the help of the scale plate, it can be precisely positioned, thereby enabling precise drilling of the weld joint and improving the processing effect of the weld joint. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall main structure of this utility model;
[0016] Figure 2 This is a top view of the structure of this utility model;
[0017] Figure 3 This is a side view of the structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of this utility model from below;
[0019] Figure 5 This is a schematic diagram of the scale plate structure of this utility model.
[0020] In the diagram: 1. Frame; 2. Fixing plate; 3. Fixing groove; 4. Cylinder; 5. Scale plate; 6. Slider; 7. Slide groove; 8. Screw; 9. Nut seat; 10. Sliding block; 11. Slide groove; 12. Drilling machine; 13. Drive motor. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0022] Reference Figures 1-5 A drilling device for producing welded joints includes a frame 1. Fixing plates 2 are provided on both inner sides of the frame 1, and cylinders 4 are bolted to both sides of the frame 1. The output shafts of the two cylinders 4 pass through the side walls of the frame 1 and are fixedly connected to one side of the two fixing plates 2. A scale plate 5 is fixedly connected to one inner side of the frame 1, and one side of each fixing plate 2 is slidably connected to one side of the scale plate 5. A screw 8 is rotatably connected to the upper inner side of the frame 1, and a drive motor 13 is bolted to one outer wall of the frame 1. One end of the screw 8 passes through the side wall of the frame 1 and is driven by the output shaft of the drive motor 13. One end of the screw 8 is threadedly connected to a nut seat 9, and a drilling machine 12 is installed at the bottom of the nut seat 9. Specifically, by moving the fixing plates 2 and the drilling machine 12, and in conjunction with the scale plate 5, precise positioning can be achieved, enabling precise drilling of the welded joint, which has high practicality.
[0023] This solution includes the following workflow:
[0024] When using the drilling device for producing welded joints according to this utility model, the welded joint to be drilled is first placed between the two fixed plates 2 in the frame 1. The two cylinders 4 are started to drive the two fixed plates 2 to clamp and stabilize the welded joint. At the same time, the clamping position is adjusted according to the scale plate 5. The drive motor 13 can be started to drive the screw 8 to rotate, so that the drilling machine 12 can be moved through the nut seat 9. With the help of the scale plate 5, the drilling machine 12 is moved to the position to be drilled, so as to achieve precise drilling of the welded joint.
[0025] Based on the above work process, it can be concluded that:
[0026] By moving the fixed plate 2 and the drilling machine 12, and with the precise positioning achieved by the scale plate 5, the welding joint can be precisely drilled, which has high practicality.
[0027] Furthermore, a slider 6 is fixedly connected to one side of each of the two fixed plates 2, and both sliders 6 are slidably connected to one side of the scale plate 5 through a slide groove 7. Specifically, by using the sliders 6 to slide in the slide groove 7, the stability of the fixed plate 2 during movement can be improved.
[0028] Furthermore, the connection between the output shafts of the two cylinders 4 and the frame 1 is a sliding connection.
[0029] Furthermore, one end of the screw 8 is rotatably connected to the inner wall of the frame 1 via a rotating shaft, and the other end of the screw 8 passes through the side wall of the frame 1 via a bearing sleeve. Specifically, the screw 8 is rotated by a drive motor 13.
[0030] Furthermore, a sliding block 10 is fixedly connected to one side of the nut seat 9, and the sliding block 10 is slidably connected to the inner wall of the frame 1 through the sliding groove 11. Specifically, by using the sliding block 10 to slide in the sliding groove 11, the stability of the nut seat 9 during movement can be enhanced.
[0031] Furthermore, each of the two fixing plates 2 has a fixing groove 3 on one side of its opposite side. Specifically, the fixing groove 3 can be used to improve the stability of the welded joint under load.
[0032] In summary: the sliding of slider 6 in slide groove 7 can improve the stability of fixed plate 2 during movement; the drive motor 13 drives screw 8 to rotate; the sliding block 10 slides in slide groove 11, which can enhance the stability of nut seat 9 during movement; and the fixed groove 3 can improve the stability of the welded joint bearing and fixing.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A drilling device for producing welded joints, comprising a frame (1), characterized in that, The inner sides of the frame (1) are provided with fixing plates (2), and the two sides of the frame (1) are fixedly connected with cylinders (4) by bolts. The output shafts of the two cylinders (4) pass through the side wall of the frame (1) and are fixedly connected to one side of the two fixing plates (2). The inner side of the frame (1) is fixedly connected with a scale plate (5), and the two fixing plates (2) are slidably connected to one side of the scale plate (5). The upper inner side of the frame (1) is rotatably connected with a screw (8), and the outer side of the frame (1) is fixedly connected with a drive motor (13) by bolts. One end of the screw (8) passes through the side wall of the frame (1) and is connected to the output shaft of the drive motor (13) for transmission. One end of the screw (8) is connected to a nut seat (9) by threaded engagement, and a drilling machine (12) is installed at the bottom of the nut seat (9).
2. The drilling device for producing welded joints according to claim 1, characterized in that, Each of the two fixed plates (2) is fixedly connected to a slider (6) on one side, and both sliders (6) are slidably connected to one side of the scale plate (5) through a groove (7).
3. The drilling device for producing welded joints according to claim 2, characterized in that, The connection between the output shafts of the two cylinders (4) and the frame (1) is a sliding connection.
4. The drilling device for producing welded joints according to claim 1, characterized in that, One end of the screw (8) is rotatably connected to the inner wall of the frame (1) through a rotating shaft, and the other end of the screw (8) passes through the side wall of the frame (1) through a bearing sleeve.
5. A drilling device for producing welded joints according to claim 1, characterized in that, A sliding block (10) is fixedly connected to one side of the nut seat (9), and the sliding block (10) is slidably connected to the inner wall of the frame (1) through the sliding groove (11).
6. A drilling device for producing welded joints according to claim 5, characterized in that, The two fixing plates (2) each have a fixing groove (3) on one side of their opposite sides.