Lifting hook welding tool
By designing a welding fixture for hooks, continuous welding of the three-pronged hooks can be achieved by using the clamping platform, jaws, and motor rotation. This solves the problem of needing to weld twice and re-clamp in the existing technology, and improves welding efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-20
AI Technical Summary
In the existing technology, the welding of three-pronged hooks requires two welding operations and re-clamping after each welding operation, resulting in low efficiency and failing to meet the requirements of mass production.
Design a hook welding fixture, including a base, a motor and a rotating frame. The fixture uses a clamping platform and jaws to stably clamp three tubular workpieces, and the motor drives the rotating frame to rotate, enabling continuous welding, avoiding interference, and completing the welding of the three workpieces.
It enables one-time clamping and continuous welding of three workpieces, improving processing efficiency, ensuring stable welding quality, and avoiding the need for reclamping.
Smart Images
Figure CN224011589U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of welding tool, concretely relates to a lifting hook welding tool. BACKGROUND
[0002] The three-pronged lifting hook is a kind of vehicle parts, which is usually formed by welding three tubular workpieces together. Since the welding of three tubular workpieces is involved, and the tubular workpieces are curved, the current common method is to weld two tubular workpieces together first, and then weld the third tubular workpiece, so as to effectively weld the three tubular workpieces. In this way, two weldings are needed, and each welding requires re-clamping, which is low in efficiency and cannot meet the requirements of mass production. SUMMARY
[0003] The utility model discloses a kind of lifting hook welding tool, including base, motor installed in base and rotary frame connected to motor output end, the rotary frame is equipped with welding opening and the first clamping table, second clamping table, third clamping table and fourth clamping table around welding opening are set, the first clamping table and fourth clamping table are oppositely arranged and each is equipped with first jaw and fourth jaw, the first jaw and fourth jaw are used to realize the clamping of the two ends of first workpiece, the second clamping table and third clamping table are each equipped with second jaw and third jaw, the second jaw and third jaw are used to realize the clamping of second workpiece and third workpiece respectively, and first workpiece, second workpiece and third workpiece meet at welding opening position.
[0004] To solve the above problems, the utility model provides a kind of lifting hook welding tool, including base, motor installed in base and rotary frame connected to motor output end, the rotary frame is equipped with welding opening and the first clamping table, second clamping table, third clamping table and fourth clamping table around welding opening are set, the first clamping table and fourth clamping table are oppositely arranged and each is equipped with first jaw and fourth jaw, the first jaw and fourth jaw are used to realize the clamping of the two ends of first workpiece, the second clamping table and third clamping table are each equipped with second jaw and third jaw, the second jaw and third jaw are used to realize the clamping of second workpiece and third workpiece respectively, and first workpiece, second workpiece and third workpiece meet at welding opening position.
[0005] The above solution uses a first clamping platform with a first jaw and a fourth clamping platform with a fourth jaw to clamp the two ends of the first workpiece, ensuring the clamping stability of the first workpiece. Simultaneously, a second clamping platform with a second jaw clamps the second workpiece, and a third clamping platform with a third jaw clamps the third workpiece. This allows the first, second, and third workpieces to intersect at the welding opening, enabling the external welding machine to directly weld the intersection of the first, second, and third workpieces at the welding opening. For each weld seam, the motor drives the rotary frame to rotate 120° until all three weld seams between the first, second, and third workpieces are welded. Furthermore, the welding opening design of the rotary frame avoids interference with the external welding machine during rotation. Compared to existing technologies, this solution can clamp the first, second, and third workpieces in one operation and achieve continuous welding without re-clamping by rotating the rotary frame with a motor, thus effectively improving processing efficiency and ensuring stable welding quality.
[0006] In an improved embodiment, the first clamping platform and the fourth clamping platform are respectively provided with a first groove and a fourth groove whose shape is adapted to the side peripheral walls of the two ends of the first workpiece. The first jaw and the fourth jaw are respectively positioned facing the opening of the first groove and the opening of the fourth groove. The second clamping platform is provided with a second groove whose shape is adapted to the side peripheral wall of the end of the second workpiece. The third clamping platform is provided with a third groove whose shape is adapted to the side peripheral wall of the end of the third workpiece. The second jaw and the third jaw are respectively positioned facing the opening of the second groove and the opening of the third groove. Thus, the two ends of the first workpiece are positioned by the first groove and the fourth groove, and then the two ends of the first workpiece are clamped by the first jaw and the fourth jaw. The second workpiece is positioned by the second groove, and then the two ends of the second workpiece are clamped by the second jaw. The third workpiece is positioned by the third groove, and then the two ends of the second workpiece are clamped by the third jaw.
[0007] In an improved embodiment, the first clamping platform is further provided with a limiting cylinder. The cylinder rod of the limiting cylinder is located in the first groove and is used to abut against the end face of the corresponding end of the first workpiece, thereby limiting the corresponding end of the first workpiece in the first groove through the limiting cylinder, and further improving the clamping stability of the first workpiece.
[0008] In an improved design, the first, second, third, and fourth grippers are all driven by corresponding cylinders to perform the gripping action, resulting in stable and reliable operation.
[0009] In an improved embodiment, the output end of the motor is provided with a rotary shaft rotatably connected to the base, and the rotary frame is connected to the rotary shaft.
[0010] In an improved scheme, a speed reducer is connected between the output end of the motor and the rotating shaft.
[0011] In an improved scheme, the base is provided with a sensor for detecting the rotating angle of the rotating frame, so that the rotating angle of the rotating frame can be accurately detected through the sensor. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 Overall schematic diagram of a hook welding tool Figure One ;
[0013] Figure 2 Overall schematic diagram of a hook welding tool Figure Two .
[0014] BRIEF DESCRIPTION OF DRAWINGS,
[0015] 1, base; 11, sensor; 2, motor; 21, rotating shaft; 22, speed reducer; 3, rotating frame; 31, welding opening; 4, first clamping table; 41, first clamping jaw; 42, first embedding groove; 43, limiting air cylinder; 5, second clamping table; 51, second clamping jaw; 52, second embedding groove; 6, third clamping table; 61, third clamping jaw; 62, third embedding groove; 7, fourth clamping table; 71, fourth clamping jaw; 72, fourth embedding groove. DETAILED DESCRIPTION
[0016] It should be understood by those skilled in the art that the following embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments as needed in order to adapt to specific application occasions.
[0017] In the description of the following embodiments, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0018] In the embodiments of the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature can be "below", "under" and "underneath" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.
[0019] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] Please refer to Figure 1 and Figure 2 The embodiment of the utility model provides a kind of hook welding tool, including base 1, motor 2 being installed in base 1 and the rotary frame 3 being connected to the output end of motor 2, rotary frame 3 is equipped with welding opening 31 and is provided with first clamp table 4, second clamp table 5, third clamp table 6 and fourth clamp table 7 around welding opening 31, first clamp table 4 and fourth clamp table 7 are oppositely arranged and each is equipped with first jaw 41 and fourth jaw 71, and first jaw 41 and fourth jaw 71 are used to realize the clamping of the two ends of first workpiece, second clamp table 5 and third clamp table 6 are each equipped with second jaw 51 and third jaw 61, and second jaw 51 and third jaw 61 are used to realize the clamping of second workpiece and third workpiece respectively, and make first workpiece, second workpiece and third workpiece meet at the position of welding opening 31.
[0021] The above scheme realizes the clamping of the two ends of first workpiece by first clamp table 4 cooperating with first jaw 41, fourth clamp table 7 cooperating with fourth jaw 71, ensures the clamping stability of first workpiece, simultaneously realizes the clamping of second workpiece by second clamp table 5 cooperating with second jaw 51, realizes the clamping of third workpiece by third clamp table 6 cooperating with third jaw 61, makes first workpiece, second workpiece and third workpiece meet at the position of welding opening 31, so that external welding machine can directly weld the meeting point of first workpiece, second workpiece and third workpiece at the position of welding opening 31, and every weld a weld, motor 2 drives rotary frame 3 to rotate 120 °, until three welds between first workpiece, second workpiece and third workpiece are welded. In addition, the setting of rotary frame 3 through welding opening 31 avoids the problem of interference with external welding machine in the rotating process. Compared with prior art, the above scheme can realize the clamping of first workpiece, second workpiece and third workpiece at one time, and realizes continuous welding by motor 2 driving rotary frame 3 to rotate without re-clamping, so as to effectively improve the processing efficiency, and the welding quality is stable.
[0022] As an improvement of the embodiment, the first clamp table 4 and the fourth clamp table 7 are respectively provided with a first embedding groove 42 and a fourth embedding groove 72 which are shaped to fit the side wall of the two end portions of the first workpiece, and the first clamping jaw 41 and the fourth clamping jaw 71 are respectively arranged towards the slot opening of the first embedding groove 42 and the slot opening of the fourth embedding groove 72. Specifically, with the first embedding groove 42 being opened on the upper side of the first clamp table 4, the slot opening of the first embedding groove 42 refers to the upper side opening of the first embedding groove 42, and after one end portion of the first workpiece is placed into the first embedding groove 42 downwards, the first clamping jaw 41 is lowered to the slot opening position of the first embedding groove 42 and abuts against the end portion of the first workpiece, thereby achieving clamping and limiting of the end portion of the first workpiece; the fourth embedding groove 72 is opened on the upper side of the fourth clamp table 7, the slot opening of the fourth embedding groove 72 refers to the upper side opening of the fourth embedding groove 72, and after the other end portion of the first workpiece is placed into the fourth embedding groove 72 downwards, the fourth clamping jaw 71 is lowered to the slot opening position of the fourth embedding groove 72 and abuts against the end portion of the first workpiece, thereby achieving clamping and limiting of the end portion of the first workpiece. Figure 1
[0023] The second clamp table 5 is provided with a second embedding groove 52 which is shaped to fit the side wall of the end portion of the second workpiece, and the third clamp table 6 is provided with a third embedding groove 62 which is shaped to fit the side wall of the end portion of the third workpiece, and the second clamping jaw 51 and the third clamping jaw 61 are respectively arranged towards the slot opening of the second embedding groove 52 and the slot opening of the third embedding groove 62. Specifically, with the second embedding groove 52 being opened on the upper side of the second clamp table 5, the slot opening of the second embedding groove 52 refers to the upper side opening of the second embedding groove 52, and after one end portion of the second workpiece is placed into the second embedding groove 52 downwards, the second clamping jaw 51 is lowered to the slot opening position of the second embedding groove 52 and abuts against the end portion of the second workpiece, thereby achieving clamping and limiting of the end portion of the second workpiece; the third embedding groove 62 is opened on the upper side of the third clamp table 6, the slot opening of the third embedding groove 62 refers to the upper side opening of the third embedding groove 62, and after one end portion of the third workpiece is placed into the third embedding groove 62 downwards, the third clamping jaw 61 is lowered to the slot opening position of the third embedding groove 62 and abuts against the end portion of the third workpiece, thereby achieving clamping and limiting of the end portion of the third workpiece. Figure 1
[0024] Further, the first clamp table 4 is further provided with a limiting air cylinder 43, the cylinder rod of the limiting air cylinder 43 is located in the first embedding groove 42, and the extension and retraction direction of the cylinder rod of the limiting air cylinder 43 is parallel to the axial direction of the corresponding end portion of the first workpiece, so that when the limiting air cylinder 43 drives the cylinder rod to extend out, the cylinder rod will abut against the end face of the corresponding end portion of the first workpiece, thereby limiting the corresponding end portion of the first workpiece in the first embedding groove 42 through the limiting air cylinder 43, and further improving the clamping stability of the first workpiece.
[0025] In the embodiment, the first clamping jaw 41, the second clamping jaw 51, the third clamping jaw 61 and the fourth clamping jaw 71 are driven to realize clamping by corresponding cylinders, and the operation is stable and reliable. The specific implementation mode is not limited, for example, the middle part of the first clamping jaw 41 is rotatably connected to the first clamping table 4, one end of the first jaw frame 41 is towards the slot opening of the first embedding slot 42, and the other end is driven to lift by the corresponding cylinder; the second clamping jaw 51, the third clamping jaw 61 and the fourth clamping jaw 71 are the same.
[0026] In the embodiment, the output end of the motor 2 is provided with a rotating shaft 21 rotatably connected to the base 1, and the rotating frame 3 is connected to the rotating shaft 21. The output end of the motor 2 and the rotating shaft 21 can also be connected with a speed reducer 22.
[0027] Further, the side of the base 1 towards the rotating frame 3 is provided with a sensor 11 for detecting the rotation angle of the rotating frame 3. The sensor 11 can be a proximity switch, an infrared sensor or the like, and the rotation angle of the rotating frame 3 is accurately detected through the sensor 11.
[0028] It should be noted that in the description of the present application, the terms "inner", "outer" and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application; all directional indications (such as up, down, left, right, front, back, inner, outer) are only used to explain the relative positional relationship, movement condition and the like between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.
[0029] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "in the embodiment", "specific example" or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.
[0030] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by the person skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A welding fixture for lifting hooks, characterized in that, The device includes a base (1), a motor (2) mounted on the base (1), and a rotary frame (3) connected to the output end of the motor (2). The rotary frame (3) has a welding opening (31) and a first clamping platform (4), a second clamping platform (5), a third clamping platform (6), and a fourth clamping platform (7) arranged around the welding opening (31). The first clamping platform (4) and the fourth clamping platform (7) are arranged opposite to each other and each has a first clamping jaw (41) and a fourth clamping jaw (71). The first clamping jaw (41) and the fourth clamping jaw (71) are used to clamp the two ends of the first workpiece. The second clamping platform (5) and the third clamping platform (6) each have a second clamping jaw (51) and a third clamping jaw (61). The second clamping jaw (51) and the third clamping jaw (61) are used to clamp the second workpiece and the third workpiece respectively, so that the first workpiece, the second workpiece, and the third workpiece meet at the welding opening (31).
2. The hook welding fixture according to claim 1, characterized in that, The first clamping platform (4) and the fourth clamping platform (7) are respectively provided with a first groove (42) and a fourth groove (72) adapted to the side walls of the two ends of the first workpiece. The first jaw (41) and the fourth jaw (71) are respectively positioned facing the opening of the first groove (42) and the opening of the fourth groove (72). The second clamping platform (5) is provided with a second groove (52) adapted to the side walls of the end of the second workpiece. The third clamping platform (6) is provided with a third groove (62) adapted to the side walls of the end of the third workpiece. The second jaw (51) and the third jaw (61) are respectively positioned facing the opening of the second groove (52) and the opening of the third groove (62).
3. The hook welding fixture according to claim 2, characterized in that, The first clamping platform (4) is also provided with a limiting cylinder (43), the cylinder rod of which is located in the first groove (42) and is used to abut against the end face of the corresponding end of the first workpiece.
4. The hook welding fixture according to claim 1, characterized in that, The first gripper (41), the second gripper (51), the third gripper (61) and the fourth gripper (71) are all driven by corresponding cylinders to achieve the gripping action.
5. The hook welding fixture according to any one of claims 1-4, characterized in that, The output end of the motor (2) is provided with a rotary shaft (21) rotatably connected to the base (1), and the rotary frame (3) is connected to the rotary shaft (21).
6. The hook welding fixture according to claim 5, characterized in that, A speed reducer (22) is connected between the output end of the motor (2) and the rotary shaft (21).
7. The hook welding fixture according to claim 5, characterized in that, The base (1) is provided with a sensor (11) on the side facing the slewing frame (3) for detecting the rotation angle of the slewing frame (3).