Composite clamp for industrial robot

Abstract

The utility model relates to the technical field of composite clamps, in particular to a composite clamp for an industrial robot, which comprises a moving mechanism for moving the composite clamp and a clamping mechanism for clamping an object, the clamping mechanism is positioned above the moving mechanism and comprises a small rotating arm, an adjusting motor is mounted at the rotating end of the small rotating arm, and the adjusting motor is positioned above the moving mechanism. A fixing column is slidably installed below the small rotating arm, a fixing frame is fixed to the lower end of the fixing column, two symmetrical clamping plates are slidably installed in the fixing frame, and anti-skid assemblies are arranged on the side walls of the clamping plates. The clamping device has the beneficial effects that when a clamped workpiece shakes instantaneously during transportation, the side wall of the workpiece is further clamped and fixed through the anti-skid assembly, meanwhile, upward supporting force is applied to the workpiece, the workpiece is prevented from sliding down, when the weight of the workpiece is larger, the clamping force on the workpiece is larger, and therefore the stability of the clamped workpiece during transportation is improved; and the phenomena of loosening or falling off and the like are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of composite clamps, in particular to a composite clamp for an industrial robot. Background Art

[0002] With the development of science and technology, complete sets of industrial robot automated production line equipment have become the mainstream of automated equipment and are widely used in the foundry industry, electronics industry, machinery industry and other industries. During the use of the robot, a fixture is required to clamp and fix the workpiece to facilitate the operation and movement of the workpiece.

[0003] By comparing an industrial robot composite fixture with patent announcement number CN218110814U, in this scheme, two clamping plates are used to clamp and fix the workpiece. However, when the workpiece is clamped and transported, the workpiece clamped by the clamping plates may shake momentarily during transportation. The momentary shaking of the clamping plates may cause the workpiece to loosen or even fall off, thereby reducing the stability of the workpiece during clamping and transportation. Utility Model Content

[0004] The purpose of the utility model is to provide a composite clamp for an industrial robot in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A composite fixture for an industrial robot comprises a moving mechanism for moving the composite fixture, and a clamping mechanism for clamping an object, wherein the clamping mechanism is located above the moving mechanism;

[0007] The clamping mechanism includes a rotating arm, an adjusting motor is installed at the rotating end of the rotating arm, a fixed column is slidably installed under the rotating arm, a fixed frame is fixed at the lower end of the fixed column, a bidirectional threaded rod is rotatably installed in the fixed frame, two symmetrical clamping plates are slidably installed in the fixed frame, the clamping plates are threadedly connected with the bidirectional threaded rod, a rotating motor is provided at the lower end of the fixed column, a bevel gear is fixed at the output end of the rotating motor and the center of the bidirectional threaded rod, the two bevel gears are meshed, and an anti-slip component is provided on the side wall of the clamping plate;

[0008] The anti-skid assembly includes a fixed bin fixed on the side wall of the clamping plate, a lower oil chamber is provided on the side of the two fixed bins away from each other, a lower piston plate is slidably installed in the lower oil chamber, a tension spring is connected between the lower piston plate and the inner wall of the lower oil chamber, an anti-skid plate is rotatably installed on the side of the two fixed bins close to each other, a torsion spring is connected between the rotating end of the anti-skid plate and the fixed bin, the anti-skid plate is tilted, a pull rope is connected between the anti-skid plate and the lower piston plate, an upper oil chamber is provided at the lower end of the rotating arm, an upper piston plate is slidably installed inside the upper oil chamber, a fixed column is fixedly connected to the upper piston plate, a compression spring is connected between the upper piston plate and the bottom wall of the upper oil chamber, and a retractable oil hose is connected between the upper oil chamber and the lower oil chamber.

[0009] Preferably: the moving mechanism includes a slide rail arranged below the rotating arm, a lead screw is rotatably installed in the slide rail, a moving motor is installed at the rotating end of the lead screw, a sliding seat is slidably arranged in the slide rail, the sliding seat is threadedly connected to the lead screw, a base is installed at the upper end of the sliding seat, the base and the sliding seat are connected by bolts, a rotating arm is rotatably installed at the upper end of the base, a rotating motor is installed at the rotating end of the rotating arm, and the rotating arm is rotatably connected to the rotating arm.

[0010] Preferably: an upper guide wheel is provided at the middle position of the oil hose, and the upper guide wheel is rotatably connected to the fixed frame.

[0011] Preferably: a lower guide wheel is provided at the middle position of the pull rope, and the lower guide wheel is rotatably connected to the fixed bin.

[0012] Preferably: a supporting plate is fixed to the lower end of the clamping plate, and the supporting plate is wedge-shaped.

[0013] Compared with the prior art, the beneficial effects are as follows:

[0014] When using a robot to clamp a workpiece, the workpiece is clamped and fixed by a clamping mechanism. When the clamped workpiece shakes momentarily during transportation, the anti-slip component is used to further clamp and fix the side wall of the workpiece while applying an upward supporting force to the workpiece to prevent it from sliding. The heavier the workpiece, the greater the clamping force on the workpiece, thereby improving the stability of the clamped workpiece during transportation and reducing the possibility of loosening or falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a spatial stereogram of a composite clamp for an industrial robot described in the utility model;

[0017] Figure 2 It is a structural schematic diagram of a moving mechanism of a composite clamp for an industrial robot according to the utility model;

[0018] Figure 3 It is a structural schematic diagram of a clamping mechanism of a composite clamp for an industrial robot according to the utility model;

[0019] Figure 4 It is a structural cross-sectional view of the interior of a clamping mechanism of a composite clamp for an industrial robot described in the utility model;

[0020] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0021] The following are the descriptions of the reference numerals:

[0022] 101. Slide rail; 102. Moving motor; 103. Lead screw; 104. Sliding seat; 105. Base; 106. Rotating upper arm; 107. Rotating motor; 201. Rotating lower arm; 202. Adjusting motor; 203. Upper oil chamber; 204. Upper piston plate; 205. Fixed column; 206. Rotating motor; 207. Fixed frame; 208. Bevel gear; 209. Bidirectional threaded rod; 210. Clamping plate; 211. Support plate; 212. Fixed bin; 213. Lower oil chamber; 214. Lower piston plate; 215. Anti-skid plate; 216. Pull rope; 217. Lower guide wheel; 218. Oil hose; 219. Upper guide wheel. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-Figure 5 As shown, a composite clamp for an industrial robot includes a moving mechanism for moving the composite clamp, and also includes a clamping mechanism for clamping an object, wherein the clamping mechanism is located above the moving mechanism.

[0026] In this embodiment: the moving mechanism includes a slide rail 101, a lead screw 103 is rotatably installed in the slide rail 101, a moving motor 102 is installed at the rotating end of the lead screw 103, a sliding seat 104 is slidably arranged in the slide rail 101, the sliding seat 104 is threadedly connected to the lead screw 103, a base 105 is installed on the upper end of the sliding seat 104, the base 105 and the sliding seat 104 are connected by bolts, a rotating arm 106 is rotatably installed on the upper end of the base 105, and a rotating motor 107 is installed at the rotating end of the rotating arm 106.

[0027] In this embodiment: the clamping mechanism includes a rotating arm 201 rotatably arranged at the upper end of the rotating arm 106, an adjusting motor 202 is installed at the rotating end of the rotating arm 201, a fixed column 205 is slidably installed below the rotating arm 201, a fixed frame 207 is fixed at the lower end of the fixed column 205, a bidirectional threaded rod 209 is rotatably installed in the fixed frame 207, two symmetrical clamping plates 210 are slidably installed in the fixed frame 207, the clamping plates 210 are threadedly connected with the bidirectional threaded rod 209, a rotating motor 206 is provided at the lower end of the fixed column 205, a bevel gear 208 is fixed at the output end of the rotating motor 206 and the center of the bidirectional threaded rod 209, the two bevel gears 208 are meshed, a support plate 211 is fixed at the lower end of the clamping plate 210, the support plate 211 is wedge-shaped, and an anti-slip component is provided on the side wall of the clamping plate 210.

[0028] The anti-skid assembly includes a fixed bin 212 fixedly arranged on the side wall of the clamping plate 210, and the two fixed bins 212 are provided with a lower oil chamber 213 on the side away from each other, and a lower piston plate 214 is slidably installed in the lower oil chamber 213, and a tension spring is connected between the lower piston plate 214 and the inner wall of the lower oil chamber 213, and an anti-skid plate 215 is rotatably installed on the side of the two fixed bins 212 close to each other, and a torsion spring is connected between the rotating end of the anti-skid plate 215 and the fixed bin 212, and the anti-skid plate 215 is tilted, and a pull rope 216 is connected between the anti-skid plate 215 and the lower piston plate 214, and a lower guide wheel 217 is provided in the middle position of the pull rope 216, and the lower guide wheel 217 is rotatably connected to the fixed bin 212, and an upper oil chamber 203 is provided at the lower end of the rotating arm 201, and a sliding spring is installed inside the upper oil chamber 203. There is an upper piston plate 204, a fixed column 205 is fixedly connected to the upper piston plate 204, a compression spring is connected between the upper piston plate 204 and the bottom wall of the upper oil chamber 203, a retractable oil hose 218 is connected between the upper oil chamber 203 and the lower oil chamber 213, an upper guide wheel 219 is provided in the middle of the oil hose 218, the upper guide wheel 219 is rotatably connected to the fixed frame 207, and the workpiece is clamped and fixed by the clamping mechanism. When the clamped workpiece shakes momentarily during transportation, the anti-slip component is used to further clamp and fix the side wall of the workpiece and exert an upward supporting force on the workpiece to prevent the workpiece from sliding down. The heavier the workpiece, the greater the clamping force on the workpiece, thereby improving the stability of the clamped workpiece during transportation and reducing the occurrence of loosening or falling off.

[0029] Working principle: First, drive the moving motor 102 to drive the lead screw 103 to rotate, drive the sliding seat 104 to move, and then drive the rotating arm 106 to move, so as to adjust the clamping position of the workpiece, and then drive the rotating motor 107 to drive the rotating arm 106 to rotate, and then drive the adjusting motor 202 to drive the rotating arm 201 to rotate, so as to adjust the clamping angle of the workpiece.

[0030] Then, the rotating motor 206 is started to drive the bevel gear 208 to rotate, meshing with the bevel gear 208 on the bidirectional threaded rod 209, thereby driving the bidirectional threaded rod 209 to rotate, and then driving the two clamping plates 210 to move toward each other, and driving the two supporting plates 211 to move toward each other to lift the bottom end of the workpiece upward until the bottom end of the workpiece moves to the uppermost end of the supporting plate 211, so that the two clamping plates 210 are completely in contact with the side wall of the workpiece, thereby completing the clamping and fixation of the workpiece.

[0031] Then the clamped workpiece is moved and transported. When the clamped workpiece is subjected to instantaneous shaking during transportation, the upper piston plate 204 will be driven to move downward in the upper oil chamber 203, and the hydraulic oil in the lower oil chamber 213 will be pumped into the upper oil chamber 203 by means of the oil hose 218, thereby driving the lower piston plate 214 to slide in the lower oil chamber 213 away from the side of the anti-slip plate 215, and pulling the pull rope 216 will drive the anti-slip plate 215 to rotate counterclockwise, and then the lower end of the anti-slip plate 215 will rotate upward to further clamp and fix the side wall of the workpiece while applying an upward supporting force. The heavier the workpiece, the greater the downward displacement of the upper piston plate 204, and the greater the clamping force of the anti-slip plate 215 on the workpiece, thereby improving the stability of the clamped workpiece during transportation and reducing the occurrence of loosening or falling off.

[0032] When unloading the workpiece, the two clamping plates 210 are disengaged from the workpiece, so that the workpiece slowly falls downward under the support of the two support plates 211, thereby preventing the workpiece from falling to the ground without the support of the support plates 211 and causing damage to the workpiece.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A composite fixture for an industrial robot, comprising a moving mechanism for moving the composite fixture, characterized in that: Also included is a clamping mechanism for clamping the object, the clamping mechanism being located above the moving mechanism; The clamping mechanism comprises a rotating arm (201), an adjusting motor (202) is installed at the rotating end of the rotating arm (201), a fixing column (205) is slidably installed below the rotating arm (201), a fixing frame (207) is fixed at the lower end of the fixing column (205), a bidirectional threaded rod (209) is rotatably installed in the fixing frame (207), two symmetrical clamping plates (210) are slidably installed in the fixing frame (207), the clamping plates (210) are threadedly connected to the bidirectional threaded rod (209), a rotating motor (206) is provided at the lower end of the fixing column (205), a bevel gear (208) is fixed at the output end of the rotating motor (206) and the center of the bidirectional threaded rod (209), the two bevel gears (208) are meshed, and an anti-slip component is provided on the side wall of the clamping plate (210); The anti-skid assembly comprises a fixed bin (212) fixedly arranged on the side wall of the clamping plate (210); a lower oil chamber (213) is provided on the side of the two fixed bins (212) away from each other; a lower piston plate (214) is slidably installed in the lower oil chamber (213); a tension spring is connected between the lower piston plate (214) and the inner wall of the lower oil chamber (213); an anti-skid plate (215) is rotatably installed on the side of the two fixed bins (212) close to each other; a torsion spring is connected between the rotating end of the anti-skid plate (215) and the fixed bin (212); and the anti-skid plate (215) is tilted, a pull rope (216) is connected between the anti-slide plate (215) and the lower piston plate (214), an upper oil chamber (203) is provided at the lower end of the rotating arm (201), an upper piston plate (204) is slidably mounted inside the upper oil chamber (203), a fixed column (205) is fixedly connected to the upper piston plate (204), a compression spring is connected between the upper piston plate (204) and the bottom wall of the upper oil chamber (203), and a retractable oil hose (218) is connected between the upper oil chamber (203) and the lower oil chamber (213).

2. The composite fixture for an industrial robot according to claim 1, characterized in that: The moving mechanism comprises a slide rail (101) arranged below a rotating small arm (201), a lead screw (103) being rotatably mounted in the slide rail (101), a moving motor (102) being mounted on the rotating end of the lead screw (103), a sliding seat (104) being slidably mounted in the slide rail (101), the sliding seat (104) being threadedly connected to the lead screw (103), a base (105) being mounted on the upper end of the sliding seat (104), the base (105) and the sliding seat (104) being connected via bolts, a rotating large arm (106) being rotatably mounted on the upper end of the base (105), a rotating motor (107) being mounted on the rotating end of the rotating large arm (106), and the rotating small arm (201) being rotatably connected to the rotating large arm (106).

3. The composite fixture for an industrial robot according to claim 2, characterized in that: An upper guide wheel (219) is provided at the middle position of the oil hose (218), and the upper guide wheel (219) is rotatably connected to the fixed frame (207).

4. The composite fixture for an industrial robot according to claim 3, characterized in that: A lower guide wheel (217) is provided at the middle position of the pull rope (216), and the lower guide wheel (217) is rotatably connected to the fixed bin (212).

5. The composite fixture for an industrial robot according to claim 4, characterized in that: A supporting plate (211) is fixed to the lower end of the clamping plate (210), and the supporting plate (211) is wedge-shaped.

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