Clamping and positioning device for steel part welding production
The clamping and positioning device driven by lifting and rotating components solves the problem that existing devices cannot adjust the angle, and realizes the convenience and adaptability of welding steel parts at multiple angles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LISHUI LIANHE XINSHENG IND & TRADE CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-14
AI Technical Summary
Existing clamping and positioning devices cannot adjust the angle, making it difficult to meet the welding requirements of steel parts at various angles.
A clamping and positioning device including a lifting component, a rotating component, and a clamping component was designed. The device uses a motor to drive a threaded rod and gears to rotate, thereby adjusting the height and angle of the steel workpiece. Combined with the clamping of a U-shaped frame and a fixed plate, it meets the requirements for multi-angle welding.
It enables multi-angle welding of steel parts, avoids positional movement during welding, adapts to the needs of users of different heights, and improves the convenience and effectiveness of use.
Smart Images

Figure CN224115485U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel welding technology, specifically a clamping and positioning device for steel welding production. Background Technology
[0002] Steel components refer to steel structural composite members that can bear and transmit loads, made of steel plates, angle steel, channel steel, I-beams, welded or hot-rolled H-beams that are cold-bent or welded together with connectors.
[0003] Depending on the construction design, the welding angle of steel parts will vary. Most of the existing clamping and positioning devices are fixed, making it difficult to adjust the angle after the steel parts are clamped and installed, thus failing to meet the clamping and positioning requirements for welding steel parts at various angles. Utility Model Content
[0004] The purpose of this utility model is to provide a clamping and positioning device for steel welding production, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping and positioning device for steel welding production, comprising a base plate, a mounting frame fixedly connected to the top surface of the base plate, a lifting assembly inside the mounting frame, a mounting box connected to the lifting assembly, a rotating assembly inside the mounting box, a connecting plate connected to the rotating assembly, a U-shaped frame fixedly connected to one end of the top surface of the connecting plate, and two fixing plates fixedly connected in a front-to-back arrangement on the right end of the top surface of the mounting box, with clamping assemblies provided on the sides of the U-shaped frame and the fixing plates.
[0006] Preferably, the lifting assembly includes a first motor, which is fixedly connected to the bottom of the left side wall of the mounting frame. The output shaft of the first motor is fixedly connected to a threaded rod, the top end of which is rotatably connected to the left end of the top wall of the mounting frame. The threaded rod is threadedly connected to a lifting plate, and a sliding rod is slidably connected to the end of the lifting plate away from the threaded rod. The two ends of the sliding rod are fixedly connected to the upper and lower inner side walls of the mounting frame. Multiple support rods are fixedly connected in an array on the top surface of the lifting plate, and the top ends of the multiple support rods penetrate the mounting frame and are fixedly connected to the bottom surface of the mounting box.
[0007] Preferably, the rotating assembly includes a second motor, which is fixedly connected to the inner surface of the mounting box. The output shaft of the second motor is fixedly connected to a first gear, which meshes with a second gear. The second gear is fixedly connected to the upper end of a rotating rod. The bottom end of the rotating rod is rotatably connected to the middle of the inner surface of the mounting box, and the top end of the rotating rod is rotatably connected to the top wall of the mounting box. The connecting plate is fixedly connected to the top surface of the rotating rod.
[0008] Preferably, the clamping assembly includes multiple electric telescopic rods, which are symmetrically distributed and fixedly connected to the upper side of the U-shaped frame and the fixing plate. A pressure sensor is fixedly connected to the telescopic end of each electric telescopic rod, and a limit frame is fixedly connected to the side of the pressure sensor away from the electric telescopic rod. A clamping groove is provided on the inner side of the limit frame.
[0009] Preferably, multiple casters are fixedly connected to the corner of the bottom surface of the base plate, and the casters are equipped with a braking device.
[0010] Preferably, a slide rail is fixedly connected to the top surface of the mounting box, the end of the connecting plate away from the rotating rod is slidably disposed inside the slide rail, and a control panel is fixedly connected to the right side of the mounting box.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. In use, a steel part is placed on the limiting frame between the fixed plates. The center point of the steel part's welding point is aligned with the center position of the mounting box. The steel part is clamped by the clamping assembly. After the connecting plate is rotated by the rotating assembly, the welding point of the other steel part is brought into contact with the welding point of the first steel part. The second steel part is clamped and fixed by the clamping assembly between the U-shaped frames, thereby preventing the steel part from moving during welding and allowing welding at various angles.
[0013] 2. When this utility model is in use, the first motor drives the threaded rod to rotate, so that the lifting plate moves the mounting box up and down through the support rod, thereby adjusting the height of the clamping component to meet the usage needs of users of different heights. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a front sectional view of the present invention.
[0016] Figure 3 This is a cross-sectional view of the mounting box of this utility model;
[0017] Figure 4 This is a schematic diagram of the clamping component structure of this utility model.
[0018] In the diagram: 1. Base plate; 2. Mounting frame; 3. Lifting assembly; 31. First motor; 32. Threaded rod; 33. Lifting plate; 34. Slide rod; 35. Support rod; 4. Mounting box; 5. Rotating assembly; 51. Second motor; 52. First gear; 53. Second gear; 54. Rotating rod; 6. Connecting plate; 7. U-shaped frame; 8. Fixing plate; 9. Clamping assembly; 91. Electric telescopic rod; 92. Pressure sensor; 93. Limiting frame; 94. Clamping slot; 10. Casters; 11. Slide rail; 12. Control panel. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a clamping and positioning device for steel welding production, including a base plate 1, a mounting frame 2 installed on the top surface of the base plate 1 by bolts, a lifting component 3 installed inside the mounting frame 2, a rotating component 5 installed inside the mounting box 4, a U-shaped frame 7 installed on one end of the top surface of the connecting plate 6 by bolts, two fixing plates 8 distributed front and back and installed on the right end of the top surface of the mounting box 4 by bolts, and a clamping component 9 installed on the side of the U-shaped frame 7 and the fixing plates 8.
[0021] The lifting assembly 3 includes a first motor 31, which is bolted to the bottom of the left side wall of the mounting frame 2. The bottom end of the threaded rod 32 is mounted on the output shaft of the first motor 31 via a coupling. The top end of the threaded rod 32 is rotatably mounted on the left end of the top wall of the mounting frame 2 via a bearing. One end of the lifting plate 33 is threadedly connected to the threaded rod 32. The sliding rod 34 is slidably connected to the end of the lifting plate 33 away from the threaded rod 32. Both ends of the sliding rod 34 are bolted to the upper and lower inner side walls of the mounting frame 2. Multiple support rods 35 are arranged in an array and bolted to the top surface of the lifting plate 33. The top ends of the multiple support rods 35 penetrate the mounting frame 2 and are bolted to the bottom surface of the mounting box 4.
[0022] The rotating assembly 5 includes a second motor 51, which is bolted to the inner surface of the mounting box 4. A first gear 52 is mounted on the output shaft of the second motor 51 via a key. A second gear 53 meshes with the first gear 52. The second gear 53 is mounted on the upper end of the rotating rod 54 via a key. The bottom end of the rotating rod 54 is rotatably mounted on the middle of the inner surface of the mounting box 4 via a bearing. The top end of the rotating rod 54 is rotatably mounted on the top wall of the mounting box 4 via a bearing. A connecting plate 6 is bolted to the top surface of the rotating rod 54.
[0023] The clamping assembly 9 includes multiple electric telescopic rods 91, which are symmetrically distributed and bolted to the upper side of the U-shaped frame 7 and the fixing plate 8. The pressure sensor 92 is threaded to the telescopic end of the electric telescopic rod 91. The limiting frame 93 is bolted to the side of the pressure sensor 92 away from the electric telescopic rod 91. The clamping groove 94 is opened on the inner side of the limiting frame 93.
[0024] When in use, the clamping assembly 9 is used to place one end of the steel part on the limiting frame 93. The electric telescopic rod 91 extends, allowing the limiting frame 93 to clamp the steel part. The clamping groove on the inner side of the limiting frame 93 can clamp the steel part with an arc-shaped side. The pressure sensor 92 monitors the clamping force to prevent excessive force from damaging the steel part.
[0025] Multiple casters 10 are bolted to the corners of the bottom surface of the base plate 1, and each caster 10 is equipped with a brake.
[0026] The slide rail 11 is bolted to the top surface of the mounting box 4. The connecting plate 6 is slidably mounted on the inner side of the slide rail 11 at the end away from the rotating rod 54. The control panel 12 is bolted to the right side of the mounting box 4. The control panel 12 is connected to the first motor 31, the second motor, the electric telescopic rod 91 and the pressure sensor 92 through wires. The control panel 12, the first motor 31, the second motor, the electric telescopic rod 91 and the pressure sensor 92 are all existing technologies, and their specific structure, working principle and electrical connection relationship will not be described in detail here.
[0027] Working principle: In use, the first motor 31 drives the threaded rod 32 to rotate, causing the lifting plate 33 to move the mounting box 4 up and down via the support rod 35. This allows for adjustment of the height of the clamping assembly 9 to meet the needs of users of different heights. A steel part is placed on the limiting frame 93 between the fixed plates 8, and the center point of the welded part is aligned with the center of the mounting box 4. The steel part is then clamped by the clamping assembly 9. After the connecting plate 6 is rotated by the rotating assembly 5, the welded part of another steel part is brought into contact with the welded part of the first steel part. The second steel part is then clamped and fixed by the clamping assembly 9 between the U-shaped frames 7, thus preventing the steel part from moving during welding and allowing for welding at various angles. This invention has the advantages of being easy to use and having good performance.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamping and positioning device for steel welding production, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is fixedly connected to the mounting frame (2), the mounting frame (2) is provided with a lifting component (3), the lifting component (3) is connected to the mounting box (4), the mounting box (4) is provided with a rotating component (5), the rotating component (5) is connected to a connecting plate (6), one end of the top surface of the connecting plate (6) is fixedly connected to a U-shaped frame (7), the right end of the top surface of the mounting box (4) is fixedly connected to two fixing plates (8) distributed front and back, and clamping components (9) are provided on the sides of the U-shaped frame (7) and the fixing plates (8).
2. The clamping and positioning device for steel welding production according to claim 1, characterized in that: The lifting assembly (3) includes a first motor (31), which is fixedly connected to the bottom of the left side wall of the mounting frame (2). The output shaft of the first motor (31) is fixedly connected to a threaded rod (32). The top end of the threaded rod (32) is rotatably connected to the left end of the top wall of the mounting frame (2). The threaded rod (32) is threadedly connected to a lifting plate (33). The end of the lifting plate (33) away from the threaded rod (32) is slidably connected to a slide rod (34). The two ends of the slide rod (34) are fixedly connected to the upper and lower inner side walls of the mounting frame (2). The top surface of the lifting plate (33) is fixedly connected to multiple support rods (35) in an array. The top ends of the multiple support rods (35) penetrate the mounting frame (2) and are fixedly connected to the bottom surface of the mounting box (4).
3. The clamping and positioning device for steel welding production according to claim 1, characterized in that: The rotating assembly (5) includes a second motor (51), which is fixedly connected to the inner surface of the mounting box (4). The output shaft of the second motor (51) is fixedly connected to a first gear (52), which meshes with a second gear (53). The second gear (53) is fixedly connected to the upper end of the rotating rod (54). The bottom end of the rotating rod (54) is rotatably connected to the middle of the inner surface of the mounting box (4), and the top end of the rotating rod (54) is rotatably connected to the top wall of the mounting box (4). The connecting plate (6) is fixedly connected to the top surface of the rotating rod (54).
4. The clamping and positioning device for steel welding production according to claim 1, characterized in that: The clamping assembly (9) includes multiple electric telescopic rods (91), which are symmetrically distributed and fixedly connected to the upper side of the U-shaped frame (7) and the fixing plate (8). A pressure sensor (92) is fixedly connected to the telescopic end of the electric telescopic rod (91), and a limit frame (93) is fixedly connected to the side of the pressure sensor (92) away from the electric telescopic rod (91). A clamping groove (94) is provided on the inner side of the limit frame (93).
5. The clamping and positioning device for steel welding production according to claim 1, characterized in that: Multiple casters (10) are fixedly connected to the corner of the bottom surface of the base plate (1), and the casters (10) are equipped with brake devices.
6. The clamping and positioning device for steel welding production according to claim 1, characterized in that: The top surface of the mounting box (4) is fixedly connected to a slide rail (11), and the end of the connecting plate (6) away from the rotating rod (54) is slidably disposed inside the slide rail (11). The right side of the mounting box (4) is fixedly connected to a control panel (12).