A three-axis truss bar material grabbing device
By designing a hydraulic lifting platform and a rotary table combined with a grab arm's V-shaped clamping surface and conical end structure on a three-axis truss, the problems of low bar stock gripping efficiency and high cost in the existing technology are solved, realizing efficient transfer of multiple bars and low-cost operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN RAYMOND AUTOMATION TECH CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-06-09
Smart Images

Figure CN224334028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of three-axis truss technology, and in particular to a three-axis truss bar gripping device. Background Technology
[0002] In daily production at the factory, bar stock such as round bars and square tubes needs to be transferred on-site on the production line. While industrial robots can handle the transfer, they require dedicated robotic arms, and the gripping arms typically only grasp one bar at a time, resulting in low efficiency. Furthermore, the high cost and maintenance of robotic arms contribute to the overall high cost, making them unsuitable for most situations. Therefore, a three-axis truss bar stock gripping device is proposed. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a three-axis truss bar gripping device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A three-axis truss bar gripping device includes a truss body and a cantilever fixedly mounted on the truss body. One end of the cantilever is provided with a hydraulic lifting platform, and the bottom of the hydraulic lifting platform is provided with a rotating platform that moves vertically.
[0006] In a preferred embodiment, the bottom output end of the hydraulic lifting platform is provided with a vertical piston rod, the lower end of which is connected to the bottom rotating platform via a slewing bearing.
[0007] In a preferred embodiment, the rotary table is an electrically powered rotary base, whose rotation is controlled by an external servo motor.
[0008] A control box is provided at the bottom of the rotary table, and a gear is provided at the center of the inside of the control box. In a preferred embodiment, a control motor that drives the gear to rotate is provided outside the control box.
[0009] The gear is provided with a sliding plate on its upper and lower sides to maintain meshing and transmission. A connecting arm is provided at the opposite end of the upper and lower sliding plates. The connecting arms extend downward from the bottom of the control box and a gripper is provided at the lower end of the connecting arms. The grippers on the left and right sides are symmetrically arranged and move towards each other to grip several bars placed in the middle.
[0010] In a preferred embodiment, the top and bottom walls of the control box are respectively provided with sliding grooves for the corresponding sliding plates to slide linearly, and openings are respectively provided on both sides of the bottom wall of the control box for the connecting arms on both sides to move back and forth. The sliding grooves and openings are kept in staggered positions.
[0011] In a preferred embodiment, the upper half of the opposing surfaces of the gripper arms are both designed as inclined surfaces, and the oppositely arranged inclined surfaces form a V-shaped clamping surface for gripping the bar stock. The lower half of the opposing surfaces of the gripper arms is designed as a conical end, and the bottom surface of the conical end is a horizontal surface.
[0012] In a preferred technical solution, there are several groups of grippers on the same side, and the tops of the grippers on the same side are all fixed to the bottom of the corresponding connecting arm above by the same mounting plate, and the grippers on both sides are relatively staggered.
[0013] The beneficial effects of this utility model are:
[0014] The gripping device on the three-axis truss proposed in this solution solves the problems of high cost and low efficiency in using robotic arms to grip and transfer bar stock. By installing the gripping device on the three-axis truss, the bar stock can be quickly transferred using the three-axis truss. This gripping device can grip several bar stock at the same time, which greatly improves the efficiency of bar stock turnover. Moreover, the equipment has low manufacturing cost and is relatively easy to maintain, which can improve economic benefits. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of the three-axis truss and the gripping device installed on it proposed in this utility model;
[0016] Figure 2 This is a top view of the three-axis truss and the gripping device mounted on it proposed in this utility model.
[0017] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point A;
[0018] Figure 4 This is a schematic diagram of the distribution and structure of the grippers on both sides of the bottom of the control box proposed in this utility model.
[0019] In the diagram: 1. Truss main body; 2. Cantilever; 3. Hydraulic lifting platform; 4. Rotary platform; 5. Control box; 6. Grab arm; 61. Clamping surface; 62. Conical end; 7. Gear; 8. Slide plate; 9. Connecting arm; 10. Mounting plate; 11. Control motor. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] In this embodiment, refer to Figure 1-4A three-axis truss bar gripping device includes a truss body 1 and a cantilever 2 fixedly mounted on the truss body 1. A hydraulic lifting platform 3 is provided at one end of the cantilever 2. A vertically lifting rotary table 4 is provided at the bottom of the hydraulic lifting platform 3. A vertical piston rod is provided at the bottom output end of the hydraulic lifting platform 3. The lower end of the piston rod is connected to the rotary table 4 at the bottom through a slewing bearing. The rotary table 4 is an electric rotating base, and its rotation is controlled by an external servo motor. A control box 5 is provided at the bottom of the rotary table 4.
[0022] The hydraulic lifting platform 3 is used to adjust the height of the control box 5, while the rotary table 4 rotates the control box 5 to turn.
[0023] A gear 7 is located at the center of the control box 5, and sliding plates 8 are respectively provided on the upper and lower sides of the gear 7 to maintain meshing and transmission with it. It should be noted that, as shown in the attached... Figure 2 As shown, a control motor 11 is installed outside the control box 5 to drive the rotation of the gear 7. The motor 11 is used to control the forward and reverse rotation of the gear 7, thereby controlling the upper and lower slide plates 8 to slide in opposite directions.
[0024] As attached Figure 3 As shown, connecting arms 9 are respectively provided at opposite ends of the upper and lower sliding plates 8. Both connecting arms 9 extend downwards from the bottom of the control box 5, and each connecting arm 9 has a gripper arm 6 at its lower end. The top and bottom walls of the control box 5 are respectively provided with grooves for the corresponding sliding plates 8 to slide linearly. Furthermore, it should be noted that openings are also provided on both sides of the bottom wall of the control box 5 for the connecting arms 9 to move back and forth. The grooves and openings are staggered to ensure that the sliding process of the sliding plates 8 and the back-and-forth movement of the connecting arms 9 do not interfere with each other.
[0025] The left and right gripping arms 6 are symmetrically arranged and move towards each other to grip several bars placed in the middle. The structural design and positional distribution of the gripping arms 6 need to be explained in detail:
[0026] As attached Figure 4 As shown, the upper half of the opposing surfaces of the gripper arms 6 are both designed as inclined surfaces, and the opposing inclined surfaces form a V-shaped clamping surface 61 for gripping the bar stock. The lower half of the opposing surfaces of the gripper arms 6 are designed as conical ends 62, with the bottom surface of the conical ends 62 being horizontal. When the two gripper arms 6 are separated, the bar stock to be gripped can be placed between the two gripper arms 6. When the two gripper arms 6 are close together, the bar stock can be gripped. The conical ends 62 facilitate the extraction of the bar stock, while the clamping surfaces 61 on both sides ensure stable clamping of the bar stock. Moreover, the design of the clamping surfaces 61 can also ensure reliable gripping of several bar stocks simultaneously, preventing them from falling off during transfer.
[0027] Several sets of gripping arms 6 are arranged on the same side, and the tops of these gripping arms 6 are all fixed to the bottom of the corresponding connecting arm 9 above via the same mounting plate 10. The gripping arms 6 on both sides are staggered. Multiple gripping arms 6 are arranged sequentially along the length of the bar stock, ensuring that the bar stock is in contact with all gripping arms 6, thus providing significant support and guaranteeing the stability of the bar stock clamping. Finally, to release the bar stock, simply separate the gripping arms 6 on both sides, making the operation very convenient.
[0028] The components used in this device are all commonly used parts, resulting in low manufacturing costs and convenient daily maintenance.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A tri-axial truss bar grabbing device comprising a truss body (1) and a cantilever (2) fixedly arranged on the truss body (1), characterized in that, One end of the cantilever (2) is provided with a hydraulic lifting platform (3), and the bottom of the hydraulic lifting platform (3) is provided with a rotating platform (4) that moves vertically. The bottom of the rotating platform (4) is provided with a control box (5), and the center of the control box (5) is provided with a gear (7). The upper and lower sides of the gear (7) are respectively provided with a sliding plate (8) that meshes with it. The opposite ends of the upper and lower sliding plates (8) are respectively provided with connecting arms (9). The connecting arms (9) all extend downward from the bottom of the control box (5), and the lower end of the connecting arms (9) is provided with a gripper (6). The number of grippers (6) on the same side is set in several groups. The upper half of the opposite surface of the gripper (6) is designed as an inclined surface, and the oppositely arranged inclined surfaces form a V-shaped clamping surface (61) for gripping the bar stock. The grippers (6) on both sides are relatively staggered. The grippers (6) on the left and right sides are symmetrically arranged and move towards each other to grip several bars stock placed in the middle.
2. A three-axis truss bar picking device according to claim 1, characterized in that The bottom output end of the hydraulic lifting platform (3) is provided with a vertical piston rod, and the lower end of the piston rod is connected to the bottom rotating platform (4) through a slewing bearing.
3. A three-axis truss bar picking device according to claim 2, characterized in that The rotary table (4) is an electric rotary base, and its rotation is controlled by an external servo motor.
4. A three-axis truss bar picking device according to claim 1, characterized in that The top and bottom walls of the control box (5) are respectively provided with sliding grooves for the corresponding sliding plate (8) to slide in a straight line. On both sides of the bottom wall of the control box (5), openings are respectively provided for the connecting arms (9) on both sides to move back and forth. The sliding grooves and openings are kept in staggered positions.
5. A three-axis truss bar picking device according to claim 1, characterized in that The control box (5) is equipped with a control motor (11) that drives the gear (7) to rotate.
6. A three-axis truss bar picking device according to claim 1, characterized in that The lower half of the opposite side of the gripper (6) is designed as a conical end (62), and the bottom surface of the conical end (62) is a horizontal surface.
7. A three-axis truss bar picking device according to claim 1, characterized in that The top ends of several gripping arms (6) on the same side are all fixedly mounted on the bottom of the corresponding connecting arm (9) above by the same mounting plate (10).