Sucker gripper for welding workstation
By introducing synchronous adsorption of the main suction head and the auxiliary suction head, as well as the extension and rotation of the connecting rod, into the suction gripper of the welding workstation, the problem of unstable single-point adsorption is solved, and multi-point stable adsorption and position adjustment of the workpiece are realized, thus improving the adaptability of the suction gripper.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI DIMU AUTOMATION SYST TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-26
AI Technical Summary
Existing suction cup grippers cannot meet the stability requirements of workpieces that are slightly larger or have uneven weight distribution during the adsorption and fixation process due to single-point adsorption. They also cannot avoid rough or hollow areas on the workpiece surface, resulting in inconvenience in operation.
Design a suction cup gripper for a welding workstation, which uses a main suction head and an auxiliary suction head for synchronous adsorption. The position of the auxiliary suction head can be adjusted by the extension, retraction and rotation of the connecting rod to avoid uneven areas on the workpiece surface and increase adsorption stability.
It achieves multi-point adsorption of workpieces, improves the stability and flexibility of adsorption, can adapt to the shape and structure of different workpiece surfaces, and enhances the practicality of the suction cup gripper.
Smart Images

Figure CN224275109U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of suction cup gripper technology, specifically a suction cup gripper for a welding workstation. Background Technology
[0002] Suction cup grippers are a key component of robots or automated equipment, usually installed at the end of a robotic arm, used to grasp objects of different shapes and materials. They are widely used in manufacturing, logistics warehousing, food processing and other fields to help achieve efficient and precise automated operations.
[0003] In the process of using a suction cup gripper for adsorption and fixation, the adsorption and fixation position is often only one point. At this time, for some workpieces that are slightly larger or have uneven weight distribution, single-point adsorption and fixation cannot meet the stability requirements of adsorption. Therefore, it is necessary to design a suction cup gripper that can adsorb at multiple points. Secondly, when adsorbing the workpiece, the position of the suction cup needs to avoid rough or hollow areas on the upper surface of the workpiece. If the adsorption position of the suction cup gripper cannot be easily adjusted, it will cause great trouble in actual operation. Utility Model Content
[0004] The purpose of this invention is to provide a suction cup gripper for a welding workstation to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a main mounting base and an auxiliary mounting sleeve. The auxiliary mounting sleeve is installed around the main mounting base. A main suction head is installed at the bottom of the main mounting base, and a secondary suction head is installed at the bottom of the auxiliary mounting sleeve. A connecting rod is provided between the main mounting base and the auxiliary mounting sleeve. The connecting rod consists of a rotating rod and an end sleeve assembly. A telescopic rod is fixed to one end of the rotating rod. The end of the telescopic rod is slidably connected to the end sleeve and fixed by a locking bolt. A rotating seat is fixed to the outside of the main mounting base at a position corresponding to the rotating rod. One end of the rotating rod is rotatably connected to the rotating seat and is provided with a fixing assembly.
[0006] Preferably, the upper end of the telescopic rod is provided with positioning grooves at equal intervals, and the positions of the positioning grooves are aligned with the positions of the locking bolts.
[0007] Preferably, the fixing component includes an arc-shaped toothed plate and a telescopic gear. The rotating seats are symmetrically distributed on both sides of the main mounting seat. Each rotating seat is rotatably connected to a pair of rotating rods. The arc-shaped toothed plate is fixed to the outer side of the end of the rotating rod and meshes with the arc-shaped toothed plates in the rotating seat on the same side. The telescopic gear is installed in the rotating seat and is located between the arc-shaped toothed plates. The telescopic gear meshes with both the arc-shaped toothed plates.
[0008] Preferably, a storage groove is provided on the inner wall above the rotating seat, the upper end of the telescopic gear is slidably connected in the storage groove, a threaded rod is rotatably connected in the storage groove, the bottom of the threaded rod is threadedly connected in the telescopic gear, the upper end of the threaded rod extends out of the rotating seat and is fixed with a knob.
[0009] Preferably, a guide rod is fixed inside the storage groove and located outside the threaded rod, and the bottom of the guide rod is slidably connected to the telescopic gear.
[0010] Preferably, the auxiliary suction head is at the same height as the bottom of the main suction head, and a connecting flange is fixed to the upper end of the main body mounting base.
[0011] Compared with the prior art, the beneficial effects of this utility model are: by using the main suction head and the auxiliary suction head for synchronous adsorption, the stability of adsorption on the workpiece can be increased, and by using the extension, retraction and rotation of the connecting rod, the position of the auxiliary suction head can be adjusted to avoid uneven or hollow areas on the upper surface of the workpiece, thereby increasing the overall practicality of the suction cup gripper. Attached Figure Description
[0012] Figure 1 This is a side view of the suction cup gripper for a welding workstation according to the present invention.
[0013] Figure 2 This is a top view schematic diagram of the suction cup gripper for a welding workstation according to the present invention;
[0014] Figure 3 This utility model relates to a suction cup gripper for a welding workstation. Figure 1 Enlarged structural diagram at point A in the middle;
[0015] Figure 4 This is a schematic diagram of the installation structure of the telescopic gear of the suction cup gripper for a welding workstation according to the present invention.
[0016] In the diagram: 1. Main mounting base; 11. Main suction head; 12. Connecting flange; 2. Auxiliary mounting sleeve; 21. Secondary suction head; 3. Connecting rod; 31. Rotating rod; 32. End sleeve; 33. Telescopic rod; 34. Locking bolt; 35. Positioning groove; 4. Rotating seat; 5. Fixing assembly; 51. Arc-shaped toothed plate; 52. Telescopic gear; 53. Storage groove; 54. Threaded rod; 55. Guide rod; 56. Knob. Detailed Implementation
[0017] 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.
[0018] Please see Figure 1-4 This utility model provides a technical solution: it includes a main mounting base 1 and an auxiliary mounting sleeve 2. The auxiliary mounting sleeve 2 is installed around the main mounting base 1. A main suction head 11 is installed at the bottom of the main mounting base 1, and a secondary suction head 21 is installed at the bottom of the auxiliary mounting sleeve 2. A connecting rod 3 is provided between the main mounting base 1 and the auxiliary mounting sleeve 2. The connecting rod 3 is composed of a rotating rod 31 and an end sleeve 32. A telescopic rod 33 is fixed to one end of the rotating rod 31. The end of the telescopic rod 33 is slidably connected to the end sleeve 32 and secured by a locking bolt 34. The telescopic rod 33 is fixed with equidistant positioning grooves 35 on its upper end. The positioning grooves 35 are aligned with the locking bolts 34. When the bottom of the locking bolts 34 enters the positioning grooves 35, the extension and retraction of the end sleeve 32 at the end of the telescopic rod 33 can be avoided. A rotating seat 4 is fixed on the outside of the main mounting base 1 and at a position corresponding to the rotating rod 31. One end of the rotating rod 31 is rotatably connected to the rotating seat 4 and is equipped with a fixing component. The auxiliary suction head 21 is at the same height as the bottom of the main suction head 11. A connecting flange 12 is fixed on the upper end of the main mounting base 1.
[0019] The fixing assembly includes an arc-shaped toothed plate 51 and a telescopic gear 52. The rotating seats 4 are symmetrically distributed on both sides of the main mounting base 1. Each rotating seat 4 is rotatably connected to a pair of rotating rods 31. The arc-shaped toothed plate 51 is fixed to the outer side of the end of the rotating rod 31, and the arc-shaped toothed plates 51 in the rotating seat 4 on the same side are engaged. The telescopic gear 52 is installed in the rotating seat 4 and is located between the arc-shaped toothed plates 51. The telescopic gear 52 is engaged with the arc-shaped toothed plates 51. A storage groove 53 is opened on the inner wall above the rotating seat 4. The upper end of the telescopic gear 52 is slidably connected in the storage groove 53. A threaded rod 54 is rotatably connected in the storage groove 53. The bottom of the threaded rod 54 is threadedly connected in the telescopic gear 52. The upper end of the threaded rod 54 extends out of the rotating seat 4 and is fixed with a knob 56. A guide rod 55 is fixed in the storage groove 53 and located outside the threaded rod 54. The bottom of the guide rod 55 is slidably connected in the telescopic gear 52.
[0020] Working Principle: First, the entire device is connected to the welding machine wall using the connecting flange 12. During the adsorption process, the main suction head 11 and the auxiliary suction head 21 adsorb the workpiece from above, using vacuum adsorption to maintain the stability of the workpiece adsorption. This is the conventional vacuum suction cup adsorption principle, so it will not be elaborated on in detail. If the workpiece is large, the connecting rod 3 can be extended so that the auxiliary suction head 21 can assist in adsorption on the upper surface of the workpiece, increasing the stability of the workpiece during welding movement. Secondly, the connecting rod 3 can be rotated and its end extended or retracted as needed to adjust the adsorption position of the auxiliary suction head 21 on the upper surface of the workpiece, ensuring stable adsorption by the auxiliary suction head 21. During this process, due to the end sleeve... The 32 is slidably connected to the front end of the telescopic rod 33. Therefore, after loosening the locking bolt 34, it can freely extend and retract, changing the straight-line distance between the auxiliary suction head 21 and the main suction head 11. Secondly, when it is necessary to rotate the connecting rod 3, the knob 56 can be rotated to drive the threaded rod 54 to rotate, which in turn drives the telescopic gear 52 to extend and retract. After the telescopic gear 52 is stored inside the storage groove 53, the engagement between the telescopic gear 52 and the arc-shaped toothed plate 51 is released, thereby achieving the purpose of free rotation of the connecting rod 3. Conversely, after the telescopic gear 52 extends, it can simultaneously engage with the arc-shaped toothed plate 51, thereby fixing the rotating rod 31 and ultimately achieving the purpose of quickly adjusting the position of the auxiliary suction head 21.
[0021] 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.
[0022] 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 suction cup gripper for a welding workstation, comprising a main mounting base (1) and an auxiliary mounting sleeve (2), characterized in that: The auxiliary mounting sleeve (2) is installed around the main mounting base (1). The main mounting base (1) is equipped with a main suction head (11) at the bottom. The auxiliary mounting sleeve (2) is equipped with a secondary suction head (21) at the bottom. A connecting rod (3) is provided between the main mounting base (1) and the auxiliary mounting sleeve (2). The connecting rod (3) is composed of a rotating rod (31) and an end sleeve (32). A telescopic rod (33) is fixed to one end of the rotating rod (31). The end of the telescopic rod (33) is slidably connected to the end sleeve (32) and fixed by a locking bolt (34). A rotating seat (4) is fixed to the outside of the main mounting base (1) at a position corresponding to the rotating rod (31). The inner end of the rotating rod (31) is rotatably connected to the rotating seat (4) and is equipped with a fixing component.
2. The suction cup gripper for a welding workstation according to claim 1, characterized in that: The telescopic rod (33) has equidistant positioning grooves (35) at its upper end, and the positioning grooves (35) are aligned with the locking bolts (34).
3. The suction cup gripper for a welding workstation according to claim 1, characterized in that: The fixing component includes an arc-shaped toothed plate (51) and a telescopic gear (52). The rotating seats (4) are symmetrically distributed on both sides of the main mounting seat (1). Each rotating seat (4) is rotatably connected to a pair of rotating rods (31). The arc-shaped toothed plate (51) is fixed on the outer side of the end of the rotating rod (31), and the arc-shaped toothed plates (51) in the rotating seats (4) on the same side are engaged. The telescopic gear (52) is installed in the rotating seat (4) and is located between the arc-shaped toothed plates (51). The telescopic gear (52) is engaged with the arc-shaped toothed plates (51).
4. A suction cup gripper for a welding workstation according to claim 3, characterized in that: The rotating seat (4) has a storage groove (53) on its upper inner wall. The upper end of the telescopic gear (52) is slidably connected in the storage groove (53). A threaded rod (54) is rotatably connected in the storage groove (53). The bottom of the threaded rod (54) is threadedly connected in the telescopic gear (52). The upper end of the threaded rod (54) extends out of the rotating seat (4) and is fixed with a knob (56).
5. A suction cup gripper for a welding workstation according to claim 4, characterized in that: A guide rod (55) is fixed inside the storage groove (53) and outside the threaded rod (54), and the bottom of the guide rod (55) is slidably connected inside the telescopic gear (52).
6. A suction cup gripper for a welding workstation according to claim 1, characterized in that: The auxiliary suction head (21) is at the same height as the bottom of the main suction head (11), and a connecting flange (12) is fixed at the upper end of the main body mounting base (1).