Anti-falling transfer mechanical arm

Abstract

The utility model discloses an anti-falling transfer mechanical arm which comprises a support, a longitudinal moving sliding rail and a transverse moving sliding rail are installed on the support to form a two-dimensional translation system, a clamping mechanism driven by an electric push rod installed on a sliding block of the transverse moving sliding rail is matched to ascend and descend, and it is ensured that the mechanical arm can accurately reach the position of a workpiece. A probe and a proximity sensor of the clamping mechanism achieve adaptation to the height of the workpiece, it is ensured that a clamping assembly is accurately attached to the bottom of the workpiece, and the falling risk caused by clamping position deviation during grabbing is avoided; the downward pressing mechanism is matched with the clamping assembly, stable clamping and pressing of the workpiece are achieved, the downward pressing mechanism adopts a downward pressing air cylinder as a power source, the workpiece is firmly pressed on the supporting plate through a pushing column, a downward pressing support, a pressing rod and other components, and the workpiece is effectively prevented from falling off in the transferring process.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to an anti-falling transport mechanical arm. Background Art

[0002] Transfer robots play an important role in industrial automation, and are mainly used to replace manual work to grab, transport and position workpieces. However, traditional transfer robots are mostly used to grab workpieces with regular dimensions, and the grabbing method usually relies on mechanical clamping or adsorption. These methods may cause unstable grasping or falling when the shape, size or surface characteristics of the workpiece change. Especially during high-speed transportation, once the workpiece falls, it will not only cause the interruption of the production line, but also may pose a safety threat to equipment and personnel.

[0003] Therefore, developing an anti-fall transfer robot arm is of great significance for improving production efficiency and ensuring production safety. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, to provide an anti-falling transfer robot arm, and to solve the technical problems raised in the existing background technology.

[0005] In order to achieve the above-mentioned technical objectives, the technical solution of the utility model provides an anti-falling transfer robot arm, including a bracket, a longitudinal slide rail is arranged on the bracket, a transverse slide rail is arranged on the slider of the longitudinal slide rail, an electric push rod is arranged on the slider of the transverse slide rail, a clamping mechanism is arranged on the piston rod of the electric push rod, the clamping mechanism includes a support plate connected to the piston rod of the electric push rod, a clamping bracket is arranged on the support plate, a pressing cylinder is arranged on the bracket, a pressing mechanism and a plurality of clamping assemblies are arranged on the support plate, and the plurality of clamping assemblies are arranged on the outer edge of the support plate, and the pressing mechanism is connected to the piston rod of the pressing cylinder.

[0006] Furthermore, the pressing mechanism includes a push column, a pressing bracket and a reset mechanism. The push column is connected to the piston rod of the pressing cylinder through the reset mechanism. A connecting plate is provided at the lower end. The connecting plate and the pressing bracket are connected by a buffer bolt. A buffer spring is provided on the buffer bolt between the connecting plate and the pressing bracket. A plurality of pressing rods are provided on the pressing bracket.

[0007] Furthermore, the clamping assembly includes a clamping mounting plate fixedly mounted on a support plate, a horizontal clamping cylinder is arranged on the clamping mounting plate, a clamping plate is arranged on the piston rod of the clamping cylinder, a vertical lifting cylinder is arranged on the side of the clamping plate connected to the clamping cylinder, and a supporting plate is arranged on the piston rod of the lifting cylinder.

[0008] Furthermore, the reset mechanism includes a guide rod arranged on the clamping bracket, a connecting seat is slidably arranged on the guide rod, the connecting seat connects the push column and the piston rod of the downward pressure cylinder, a tension spring is arranged between the connecting seat and the clamping bracket, and the two ends of the tension spring are respectively connected to the clamping bracket and the connecting seat.

[0009] Furthermore, a limiting mechanism is provided on the support plate, the limiting mechanism includes a probe and a detection bracket, a proximity sensor is provided on the detection bracket, the probe includes an outer tube, the outer tube is fixedly provided on the support plate, a telescopic needle and a reset spring are provided in the outer tube, the two ends of the reset spring are respectively connected to the telescopic needle and the inner wall of the outer tube, the upper part of the telescopic needle passes through the support plate and is provided with a limiting nut.

[0010] Furthermore, the compression rod is hollow and its internal thread is connected with a telescopic screw rod.

[0011] Compared with the prior art, the beneficial effects of the utility model include:

[0012] 1. The utility model constructs a two-dimensional translation system through longitudinal slide rails and transverse slide rails, and cooperates with the lifting of the clamping mechanism driven by the electric push rod to ensure that the robot arm can accurately reach the workpiece position; the probe and the proximity sensor realize the adaptation of the workpiece height to ensure that the clamping assembly and the bottom of the workpiece are accurately fitted to avoid the risk of falling due to the clamping position deviation during grasping; the pressing mechanism and the clamping assembly cooperate to achieve stable clamping and pressing of the workpiece. The pressing mechanism adopts the pressing cylinder as the power source, and the workpiece is firmly pressed on the pallet through the push column, the pressing bracket, the pressing rod and other components, which effectively prevents the workpiece from falling during transportation.

[0013] 2. The clamping assembly of the utility model adopts the collaborative working mode of the clamping cylinder and the lifting cylinder. The clamping plates clamp the workpiece from both sides, and the supporting plates are inserted into the bottom to provide support, forming a stable three-point clamping structure, which is suitable for various types of workpieces, especially irregular-shaped workpieces, and effectively prevents the workpiece from tilting or flipping during the clamping process, disperses the clamping force, and reduces the local stress of the workpiece. The overall mechanical arm structure is compact, which is easy to install, maintain and expand functions, improves the space utilization and adaptability of the equipment, and ensures efficient and stable workpiece transfer operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of an anti-falling transfer mechanical arm provided by the utility model;

[0015] Figure 2 This is a schematic diagram of a clamping mechanism of an anti-falling transfer mechanical arm provided by the utility model;

[0016] Figure 3 This is a cross-sectional view of a probe of an anti-falling transfer robot arm provided by the utility model;

[0017] Figure 4 This is a cross-sectional view of a downward pressing mechanism of an anti-falling transfer mechanical arm provided by the utility model;

[0018] Figure 5 It is a cross-sectional view of a clamping component of an anti-falling transfer robot arm provided by the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Reference Figure 1 The utility model provides an anti-falling transfer robot arm, including a bracket 1, a longitudinal slide rail 2 is arranged on the bracket 1, a transverse slide rail 3 is installed on the slider of the longitudinal slide rail 2, so that the entire robot arm can realize two-dimensional movement on the horizontal plane, and an electric push rod 4 is arranged on the slider of the transverse slide rail 3, which is used to drive the clamping mechanism 5 connected with its piston rod to rise and fall.

[0021] Reference Figure 2 The clamping mechanism 5 includes a support plate 501 connected to the piston rod of the electric push rod 4, a clamping bracket 502 is fixed on the support plate 501, a pressing cylinder 6 is installed on the clamping bracket 502, a pressing mechanism 7, a plurality of clamping components 8, a probe 9 and a detection bracket 10 are installed on the support plate 501, the clamping component 8 is arranged on the outer edge of the support plate 501 to achieve clamping of the workpiece on all sides, the pressing mechanism 7 is connected to the piston rod of the pressing cylinder 6, and is used to press and fix the workpiece, and a proximity sensor 11 is arranged on the detection bracket 10;

[0022] Reference Figure 3 The probe 9 includes an outer tube 901, which is fixedly mounted on the support plate 501. A telescopic needle 902 and a reset spring 905 are arranged inside the outer tube 901. The two ends of the reset spring 905 are respectively connected to the telescopic needle 902 and the inner wall of the outer tube 901. The upper part of the telescopic needle 902 passes through the support plate 501 and is provided with a limiting nut 903.

[0023] During operation, the clamping mechanism 5 descends and the lower end of the telescopic needle 902 contacts the workpiece, thereby pushing the telescopic needle 902 to move upward. The telescopic needle 902 is close to the proximity sensor 11 and triggers it. For workpieces with irregular shapes and dimensions, the height of the proximity sensor 11 on the measuring bracket 10 is adjusted to match the height of the upper surface of the workpiece, thereby achieving precise control of the descending height of the clamping mechanism 5, so that the lower end of the clamping assembly 8 is matched with the lower bottom surface of the workpiece.

[0024] Reference Figure 4 The pressing mechanism 7 includes a push column 701 and a pressing bracket 703; a guide rod 707 is installed on the clamping bracket 502, and a connecting seat 708 is slidably provided on the guide rod 707. The connecting seat 708 connects the push column 701 and the piston rod of the pressing cylinder 6. A tension spring 709 is installed between the connecting seat 708 and the clamping bracket 502. The two ends of the tension spring 709 are respectively connected to the clamping bracket 502 and the connecting seat 708, and are used to reset the push column 701 through the tension of the tension spring 709 when the piston rod of the pressing cylinder 6 retracts;

[0025] The lower end of the push column 701 is provided with a connecting plate 702, and the connecting plate 702 is connected to the pressing bracket 703 by a buffer bolt 704. The buffer bolt 704 between the connecting plate 702 and the pressing bracket 703 is installed with a buffer spring 705 to provide a buffer force during the pressing process to avoid damage to the workpiece. The pressing bracket 703 is installed with a plurality of pressing rods 706, which are hollow and have a telescopic screw 710 connected to the internal thread to facilitate the adjustment of the length of the pressing rod 706, ensuring that the lower end of each pressing rod 706 is in good contact with the workpiece when the workpiece is pressed.

[0026] Reference Figure 5 The clamping assembly 8 includes a clamping mounting plate 801 fixedly mounted on the support plate 501, a horizontal clamping cylinder 802 is mounted on the clamping mounting plate 801, a clamping plate 803 is mounted on the piston rod of the clamping cylinder 802, a vertical lifting cylinder 804 is mounted on the side where the clamping plate 803 is connected to the clamping cylinder 802, and a supporting plate 805 is mounted on the piston rod of the lifting cylinder 804. Through the coordinated action of the clamping cylinder 802 and the lifting cylinder 804, stable clamping and lifting of the workpiece can be achieved.

[0027] In order to facilitate the understanding of the present invention, the following Figure 1 - Figure 5 The working principle of this solution is described in detail:

[0028] When grabbing the workpiece, the clamping mechanism 5 moves to the top of the workpiece. During the descent of the clamping mechanism 5, the lower end of the telescopic needle 902 first contacts the workpiece. When the support plate 805 is flush with the bottom surface of the workpiece, the clamping cylinder 802 extends to insert the support plate 805 into the lower part of the workpiece; the piston rod of the lifting cylinder 804 retracts, and the pressing cylinder 6 extends to clamp the workpiece through the pressure rod 706, thereby effectively preventing the workpiece from falling during transportation.

[0029] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A transport robot arm that prevents falling, comprising a bracket, a longitudinal slide rail is arranged on the bracket, a transverse slide rail is arranged on the slider of the longitudinal slide rail, an electric push rod is arranged on the slider of the transverse slide rail, and a clamping mechanism is arranged on the piston rod of the electric push rod, characterized in that: The clamping mechanism includes a support plate connected to the piston rod of the electric push rod, a clamping bracket is provided on the support plate, a pressing cylinder is provided on the bracket, a pressing mechanism and a plurality of clamping components are provided on the support plate, and the plurality of clamping components are provided on the outer edge of the support plate, and the pressing mechanism is connected to the piston rod of the pressing cylinder.

2. The anti-falling transfer robot arm according to claim 1, characterized in that: The pressing mechanism includes a push column, a pressing bracket and a reset mechanism. The push column is connected to the piston rod of the pressing cylinder through the reset mechanism. A connecting plate is provided at the lower end. The connecting plate and the pressing bracket are connected by a buffer bolt. A buffer spring is provided on the buffer bolt between the connecting plate and the pressing bracket. A plurality of pressing rods are provided on the pressing bracket.

3. The anti-falling transfer robot arm according to claim 2, characterized in that: The clamping assembly includes a clamping mounting plate fixedly mounted on the support plate, a horizontal clamping cylinder is arranged on the clamping mounting plate, a clamping plate is arranged on the piston rod of the clamping cylinder, a vertical lifting cylinder is arranged on the side of the clamping plate connected to the clamping cylinder, and a supporting plate is arranged on the piston rod of the lifting cylinder.

4. The anti-falling transfer robot arm according to claim 2 or 3, characterized in that: The reset mechanism includes a guide rod arranged on the clamping bracket, a connecting seat is slidably arranged on the guide rod, the connecting seat connects the push column and the piston rod of the downward pressure cylinder, a tension spring is arranged between the connecting seat and the clamping bracket, and the two ends of the tension spring are respectively connected to the clamping bracket and the connecting seat.

5. The anti-falling transfer robot arm according to claim 4, characterized in that: A limiting mechanism is arranged on the support plate, and the limiting mechanism includes a probe and a detection bracket. A proximity sensor is arranged on the detection bracket. The probe includes an outer cylinder, and the outer cylinder is fixedly arranged on the support plate. A telescopic needle and a reset spring are arranged in the outer cylinder. Two ends of the reset spring are respectively connected to the telescopic needle and the inner wall of the outer cylinder. The upper part of the telescopic needle passes through the support plate and is provided with a limiting nut.

6. The anti-falling transfer robot arm according to claim 5, characterized in that: The compression rod is hollow and its internal thread is connected with a telescopic screw rod.

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