Mechanical arm structure for mechanical equipment

Abstract

The utility model relates to a mechanical arm structure for mechanical equipment, which belongs to the technical field of mechanical arms and comprises a mounting plate and a fixing column, an adjusting mechanism is arranged outside the mounting plate and comprises a driving motor fixedly connected with the fixing plate, and the output end of the driving motor is fixedly connected with a worm rotationally connected with the mounting plate. The bottom of the worm is engaged with a worm gear, and the interior of the worm gear is fixedly connected with a lead screw. According to the mechanical arm structure for the mechanical equipment, by arranging the adjusting mechanism, the mechanical arm structure can be conveniently adjusted, clamping and limiting of the mechanical arm structure on a workpiece are facilitated, a self-locking function is added for the mechanical arm structure, and the problems that the spring is unstable and the clamping precision is poor due to the fact that the clamping plate clamps the workpiece through the elastic force of the spring and limiting is not achieved are solved. The problems that when the mechanical arm is vibrated, a spring stretches out and draws back easily, a clamping plate clamps a workpiece unfirmly, the clamping and moving effects of the mechanical arm on the workpiece are affected, and the structural practicability of the mechanical arm is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arms, in particular to a mechanical arm structure for mechanical equipment. Background Art

[0002] A robotic arm refers to a complex system with high precision, multiple inputs and outputs, high nonlinearity, and strong coupling. Due to its unique operational flexibility, it has been widely used in industrial assembly, safety and explosion protection and other fields. The robotic arm is a complex system with uncertainties such as parameter perturbations, external interference, and unmodeled dynamics. Therefore, the modeling model of the robotic arm also has uncertainties. For different tasks, it is necessary to plan the motion trajectory of the robotic arm joint space, so as to cascade and form the end.

[0003] Please refer to the announcement number CN114454209A for a mechanical arm structure for mechanical equipment, including a base plate, a right column is fixedly installed on the top of the base plate near the right side, a top plate is fixedly installed on the top of the right column, a left column is fixedly installed on the top of the base plate near the left side, a workpiece lifting mechanism is installed on the top of the base plate, the left column and the right column are both connected to the workpiece lifting mechanism, and a movable plate is movably installed on the outer side of the left column, and the slider can be moved to the left through the cooperation between the handle, the slider and the cross bar, thereby compressing the second spring, and the triangular block can be moved downward through the cooperation between the rotating rod, the connecting sleeve and the triangular block, and the three clamps can be rotated and moved away from each other through the cooperation between the side rod, the guide rod and the guide groove, and then the three clamps can be rotated and moved away from each other, and when the second spring is reset, the three clamps can be rotated and moved closer to each other, so that the workpiece can be clamped, thereby facilitating the fixation of the workpiece.

[0004] However, in this patent, the elastic force of the spring is used to clamp the workpiece, and there is no limit on the position, which makes the spring unstable. When subjected to vibration, the spring is likely to expand and contract, causing the clamp to not firmly clamp the workpiece, affecting the clamping and moving effect of the robot arm on the workpiece, and reducing the practicality of the robot arm structure. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a mechanical arm structure for mechanical equipment, which has the advantages of convenient adjustment and self-locking, and solves the problem that the spring force is used to clamp the workpiece by the splint, but there is no limit on the spring, which makes the spring unstable. When vibrated, the spring is likely to expand and contract, resulting in the splint not firmly clamping the workpiece, affecting the clamping and moving effect of the mechanical arm on the workpiece and reducing the practicality of the mechanical arm structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical arm structure for mechanical equipment, comprising a mounting plate and a fixing column, wherein an adjustment mechanism is arranged outside the mounting plate;

[0007] The adjusting mechanism includes a driving motor fixedly connected to a fixing plate, an output end of the driving motor fixedly connected to a worm rotatably connected to a mounting plate, a worm wheel meshing at the bottom of the worm, a lead screw fixedly connected inside the worm wheel, an external threaded connection of the lead screw to a sliding seat, a pull rod hinged at the bottom of the sliding seat, the other end of the pull rod hinged to a connecting tube sleeved with a fixing column, connecting rods hinged on both sides of the connecting tube, a clamping plate hinged on the other end of the connecting rod, and a double-headed telescopic rod fixedly connected to a fixing column hinged on opposite sides of the two clamping plates.

[0008] Furthermore, a mounting hole is provided inside the mounting plate, and the mounting hole is close to the right side of the mounting plate.

[0009] Furthermore, a rotating hole is opened inside the mounting plate, and the worm is rotatably connected to the mounting plate through the rotating hole, and the worm is located inside the mounting plate.

[0010] Furthermore, one end of the lead screw away from the worm gear is fixedly connected to a bearing, and the bearing is fixedly connected to the mounting plate.

[0011] Furthermore, a through groove is provided inside the mounting plate, and the pull rod passes through the mounting plate through the through groove and is hinged to the connecting tube.

[0012] Furthermore, both left and right sides of the connecting tube are fixedly connected with hinge seats, and the connecting tube is hinged to the connecting rod through the hinge seats.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The mechanical arm structure of the mechanical equipment is convenient for adjusting the mechanical arm structure by setting an adjustment mechanism, which is convenient for the mechanical arm structure to clamp and limit the workpiece, and adds a self-locking function to the mechanical arm structure, which solves the problem that the spring force is used to enable the clamping plate to complete the clamping of the workpiece, but there is no limit, resulting in the spring being unstable. When vibrated, the spring is likely to expand and contract, resulting in the clamping plate not clamping the workpiece firmly, affecting the clamping and movement effect of the mechanical arm on the workpiece, and reducing the practicality of the mechanical arm structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0016] Figure 2 This is a three-dimensional diagram of the mounting plate structure of the utility model.

[0017] In the figure: 1, mounting plate; 101, mounting hole; 2, fixing column; 3, driving motor; 4, worm; 5, worm wheel; 6, lead screw; 601, bearing; 7, sliding seat; 8, pull rod; 9, connecting tube; 901, hinged seat; 10, connecting rod; 11, clamping plate; 12, double-head telescopic rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 A mechanical arm structure for a mechanical device in this embodiment includes a mounting plate 1 and a fixing column 2, and an adjustment mechanism is arranged outside the mounting plate 1.

[0020] In this embodiment, the adjustment mechanism includes a driving motor 3 fixedly connected to the fixing plate, a mounting hole 101 is opened inside the mounting plate 1, the mounting hole 101 is close to the right side of the mounting plate 1, the size of the mounting hole 101 is adapted to the lifting and lowering adjustment component, the user connects the mounting plate 1 with the lifting and lowering adjustment component through the mounting hole 101, which is convenient for the installation of the mounting plate 1 and the lifting and lowering adjustment of the mounting plate 1, the output end of the driving motor 3 is fixedly connected with a worm 4 rotatably connected to the mounting plate 1, the bottom of the worm 4 is meshed with a worm wheel 5, a rotating hole is opened inside the mounting plate 1, the worm 4 is rotatably connected to the mounting plate 1 through the rotating hole, the worm 4 is located inside the mounting plate 1, which is convenient for the installation of the worm 4 and the rotation of the worm 4, the driving motor 3 is energized, driving the worm 4 to rotate, the worm 4 drives the worm wheel 5 to rotate, the worm 4 and the worm wheel 5 cooperate with each other to perform transmission and self-locking, and reduce sliding and deviation.

[0021] Among them, the inside of the worm wheel 5 is fixedly connected to a screw rod 6, and the outside of the screw rod 6 is threadedly connected to a sliding seat 7. The end of the screw rod 6 away from the worm wheel 5 is fixedly connected to a bearing 601, and the bearing 601 is fixedly connected to the mounting plate 1 to limit the screw rod 6, which is convenient for the rotation of the screw rod 6. The loss of driving force is reduced by the bearing 601. The rotation of the worm wheel 5 drives the screw rod 6 to rotate, so that the sliding seat 7 slides left and right on the outside of the screw rod 6, which is convenient for adjustment. The bottom of the sliding seat 7 is hinged with a pull rod 8, and the other end of the pull rod 8 is hinged with a connecting tube 9 that is sleeved on the fixed column 2. A through groove is opened inside the mounting plate 1, and the pull rod 8 passes through the mounting plate 1 through the through groove and is hinged with the connecting tube 9, which is convenient for the connection between the pull rod 8 and the connecting tube 9. The sliding seat 7 slides, driving the pull rod 8 to move, so that the connecting tube 9 slides up and down on the outside of the fixed column 2, which is convenient for adjusting the position of the connecting tube 9.

[0022] In addition, connecting rods 10 are hinged on the left and right sides of the connecting tube 9, and the other end of the connecting rod 10 is hinged on the clamping plate 11. The left and right sides of the connecting tube 9 are fixedly connected with hinge seats 901. The connecting tube 9 is hinged to the connecting rod 10 through the hinge seat 901. The connecting tube 9 slides up and down, driving the two connecting rods 10 to move. The movement of the two connecting rods 10 drives the two clamping plates 11 to slide relative to or apart, which is convenient for adjusting the position of the clamping plates 11 and facilitating the clamping and fixing of the workpiece by the clamping plates 11. The opposite side of the two clamping plates 11 is hinged with a double-headed telescopic rod 12 fixedly connected to the fixed column 2. The two clamping plates 11 are respectively fixedly hinged to the two telescopic ends of the double-headed telescopic rod 12, which limits the clamping plates 11 and facilitates the adjustment of the clamping plates 11.

[0023] The beneficial effects of the above embodiments are:

[0024] The mechanical arm structure of the mechanical equipment is convenient for adjusting the mechanical arm structure by setting an adjustment mechanism, which is convenient for the mechanical arm structure to clamp and limit the workpiece, and adds a self-locking function to the mechanical arm structure, which solves the problem that the spring force is used to enable the clamping plate to complete the clamping of the workpiece, but there is no limit, resulting in the spring being unstable. When vibrated, the spring is likely to expand and contract, resulting in the clamping plate not clamping the workpiece firmly, affecting the clamping and movement effect of the mechanical arm on the workpiece, and reducing the practicality of the mechanical arm structure.

[0025] The working principle of the above embodiment is:

[0026] The mechanical equipment uses a mechanical arm structure. When the mechanical arm structure is in use, the driving motor 3 is energized to drive the worm 4 to rotate, and the worm 4 drives the worm wheel 5 to rotate. The worm wheel 5 rotates and drives the lead screw 6 to rotate, so that the sliding seat 7 slides left and right on the outside of the lead screw 6. The sliding seat 7 slides and drives the pull rod 8 to move, so that the connecting tube 9 slides up and down on the outside of the fixed column 2, which is convenient for adjusting the position of the connecting tube 9. The connecting tube 9 slides up and down, driving the two connecting rods 10 to move. The two connecting rods 10 move and drive the two clamping plates 11 to slide relative to or apart, so that the clamping plates 11 clamp and fix the workpiece. After the clamping and fixation of the workpiece is completed, the driving motor 3 is powered off, the worm 4 and the worm wheel 5 stop rotating, and the worm 4 and the worm wheel 5 complete self-locking, thereby facilitating the adjustment of the mechanical arm structure, adding a self-locking function to the mechanical arm structure, and enhancing the clamping effect of the mechanical arm structure on the workpiece.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical arm structure for mechanical equipment, comprising a mounting plate (1) and a fixing column (2), characterized in that: An adjustment mechanism is arranged outside the mounting plate (1); The adjustment mechanism comprises a driving motor (3) fixedly connected to a fixing plate, the output end of the driving motor (3) being fixedly connected to a worm (4) rotatably connected to a mounting plate (1), the bottom of the worm (4) being meshed with a worm wheel (5), the interior of the worm wheel (5) being fixedly connected to a lead screw (6), the exterior of the lead screw (6) being threadedly connected to a sliding seat (7), the bottom of the sliding seat (7) being hinged with a pull rod (8), the other end of the pull rod (8) being hinged to a connecting tube (9) sleeved with a fixing column (2), the left and right sides of the connecting tube (9) being hinged with connecting rods (10), the other end of the connecting rod (10) being hinged to a clamping plate (11), and the opposite sides of the two clamping plates (11) being hinged with a double-headed telescopic rod (12) fixedly connected to the fixing column (2).

2. A mechanical arm structure for mechanical equipment according to claim 1, characterized in that: A mounting hole (101) is provided inside the mounting plate (1), and the mounting hole (101) is close to the right side of the mounting plate (1).

3. The mechanical arm structure for mechanical equipment according to claim 1, characterized in that: A rotating hole is provided inside the mounting plate (1), and the worm (4) is rotatably connected to the mounting plate (1) via the rotating hole. The worm (4) is located inside the mounting plate (1).

4. The mechanical arm structure for mechanical equipment according to claim 1, characterized in that: One end of the lead screw (6) away from the worm gear (5) is fixedly connected to a bearing (601), and the bearing (601) is fixedly connected to the mounting plate (1).

5. The mechanical arm structure for mechanical equipment according to claim 1, characterized in that: A through slot is provided inside the mounting plate (1), and the pull rod (8) passes through the mounting plate (1) through the through slot and is hingedly connected to the connecting tube (9).

6. The mechanical arm structure for mechanical equipment according to claim 1, characterized in that: The left and right sides of the connecting tube (9) are both fixedly connected with hinge seats (901), and the connecting tube (9) is hinged to the connecting rod (10) via the hinge seats (901).

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