Mechanical hand for feeding a machine tool

Abstract

The utility model relates to machine tool feeding technology field, and disclose a kind of manipulator for machine tool feeding, the manipulator for machine tool feeding, including frame, the top end surface of frame is fixedly connected with three-axis moving platform, the output of three-axis moving platform is fixedly connected with shell, the inside of shell is provided with clamping assembly.The manipulator for machine tool feeding, through the clamping assembly of being set, elastic pad is adhered to the outer surface of workpiece by elastic deformation, the surface of irregular or slightly deviated workpiece can be flexibly adhered, compared with hard gripper, more can cover workpiece for cylinder, special-shaped part or blank, improve stability and clamping consistency, reduce the indentation, scratch, deformation caused by hard contact, abutment plate and the outer wall contact of workpiece, workpiece is not floated, jumping or sliding in clamping process due to inertia or vibration, strengthen the contact stability of workpiece and clamp, ensure not to run position.

Description

Technical Field

[0001] This utility model relates to the field of machine tool loading technology, specifically a robotic arm used for loading machine tools. Background Technology

[0002] Numerical control machine tools are a type of automated machine tool equipped with a program control system. They can operate and process parts according to a pre-programmed program. They integrate the latest technologies in mechanics, automation, computers, measurement, and microelectronics. Their basic components include a machining program carrier, numerical control device, servo drive device, machine tool body, and other auxiliary devices.

[0003] According to a public notice (Announcement No.: CN117484253A) of a robotic arm for loading machine tools in mechanical manufacturing, the above application includes: a first moving component is provided above the base, a crossbeam is provided above the first moving component, a second moving component is provided on the crossbeam, a third moving component is provided below the second moving component, and a clamping component is provided below the third moving component.

[0004] However, in actual use, the aforementioned robotic arm for loading materials has problems such as small contact area and unstable clamping force when using rigid robotic arms to clamp bar materials, especially round bars. The grippers are prone to slipping or rotating, resulting in problems such as misalignment, tilting, and improper clamping. In view of this, we propose a robotic arm for loading materials onto machine tools. Utility Model Content

[0005] The purpose of this invention is to provide a robotic arm for loading machine tools, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a robotic arm for loading machine tools, comprising a frame, a three-axis moving platform fixedly connected to the top end face of the frame, a housing fixedly connected to the output end of the three-axis moving platform, and a clamping assembly disposed inside the housing, the clamping assembly comprising:

[0007] An electric linear actuator, wherein the output end of the electric linear actuator is provided with a mounting block, and a hinge rod is hinged to the bottom of the mounting block;

[0008] A vertical rod, with a mounting plate fixedly connected to its end face, a clamping claw fixedly connected to the side of the mounting plate away from the vertical rod, and an elastic pad fixedly connected to the bottom end face of the mounting plate;

[0009] A connecting rope is provided, with a lower pressure plate fixedly connected to its end face. An elastic element is fixedly connected to the top end face of the lower pressure plate, and an elastic telescopic rod is fixedly connected to the bottom end face of the lower pressure plate. An abutment plate is fixedly connected to the end of the elastic telescopic rod away from the lower pressure plate.

[0010] Preferably, the electric push rod is fixed to the inner wall of the housing, and the end of the hinge rod away from the mounting block is hinged to the vertical rod.

[0011] Preferably, a horizontal bar is fixedly connected to the inner wall of the housing, and the horizontal bar is sleeved with the vertical bar, so that the vertical bar can only move laterally.

[0012] Preferably, the elastic pad is fixedly connected to the gripper, and there are two sets of elastic pads and grippers, with the two sets of grippers arranged alternately.

[0013] Preferably, the end of the elastic element away from the lower pressure plate is fixedly connected to the bottom end face of the housing, the end of the connecting rope away from the lower pressure plate is fixedly connected to the side wall of the vertical rod, and a roller is rotatably connected to the bottom end of the housing. The roller is movably connected to the connecting rope, and the roller changes the direction of the connecting rope to guide it.

[0014] Preferably, the bottom of the abutment plate is provided with a transverse groove, and the number of transverse grooves is set in several groups, with the several groups of transverse grooves being equally spaced. The transverse grooves increase the friction between the workpiece and the abutment plate.

[0015] Preferably, an elastic telescopic rod two is fixedly connected to the bottom end face of the lower pressure plate, and a suction cup is fixedly connected to the end of the elastic telescopic rod two away from the lower pressure plate.

[0016] Compared with the prior art, this utility model provides a robotic arm for loading machine tools, which has the following beneficial effects:

[0017] 1. This robotic arm for loading machine tools, through its clamping components, uses an elastic pad that conforms to the outer surface of the workpiece through elastic deformation. It can flexibly conform to irregular or slightly deviated workpiece surfaces. For cylindrical, irregularly shaped, or blank parts, it can better hold the workpiece than hard grippers, improving stability and clamping consistency, and reducing indentations, scratches, and deformation caused by hard contact. The abutment plate contacts the outer wall of the workpiece and presses the workpiece downwards. The workpiece will not float, jump, or slide due to inertia or vibration during the clamping process, enhancing the contact stability between the workpiece and the fixture and ensuring that it does not shift.

[0018] 2. This robotic arm for loading onto machine tools uses suction cups to adhere to the top of the bar stock. When the workpiece is light or the clamping force is small, it prevents the workpiece from shaking during the clamping process and enhances the adhesion of the workpiece clamping components. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2This is a schematic cross-sectional view of the shell structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the lower pressure plate structure of this utility model.

[0022] In the diagram: 1. Frame; 2. Three-axis moving platform; 3. Housing; 4. Clamping assembly; 401. Electric push rod; 402. Mounting block; 403. Hinge rod; 404. Vertical rod; 405. Mounting plate; 406. Gripper; 407. Elastic pad; 408. Connecting rope; 409. Lower pressure plate; 410. Elastic component; 411. Elastic telescopic rod one; 412. Abutment plate; 5. Horizontal bar; 6. Roller; 7. Elastic telescopic rod two; 8. Suction cup. Detailed Implementation

[0023] like Figures 1-3 As shown, this utility model provides a technical solution: a robotic arm for loading machine tools, including a frame 1, a three-axis moving platform 2 fixedly connected to the top end face of the frame 1, a housing 3 fixedly connected to the output end of the three-axis moving platform 2, and a clamping assembly 4 provided inside the housing 3. The clamping assembly 4 includes an electric push rod 401, a mounting block 402, a hinge rod 403, a vertical rod 404, a mounting plate 405, a gripper 406, an elastic pad 407, a connecting rope 408, a lower pressure plate 409, an elastic element 410, an elastic telescopic rod 411, and an abutment plate 412.

[0024] In one embodiment of this utility model, the output end of the electric push rod 401 is provided with a mounting block 402, and the bottom of the mounting block 402 is hinged with a hinge rod 403. The electric push rod 401 is fixed to the inner wall of the housing 3. The end of the hinge rod 403 away from the mounting block 402 is hinged to the vertical rod 404. The end face of the vertical rod 404 is fixedly connected with a mounting plate 405. The inner wall of the housing 3 is fixedly connected with a horizontal rod 5, which is sleeved with the vertical rod 404. The horizontal rod 5 allows the vertical rod 404 to move only laterally. The side of the mounting plate 405 away from the vertical rod 404 is fixedly connected with a gripper 406. The bottom end face of the mounting plate 405 is fixedly connected with an elastic pad 407. The elastic pad 407 is fixedly connected to the gripper 406. There are two sets of elastic pads 407 and grippers 406, and the two sets of grippers 406 are staggered.

[0025] A lower pressure plate 409 is fixedly connected to the end face of the connecting rope 408. An elastic element 410 is fixedly connected to the top end face of the lower pressure plate 409. An elastic telescopic rod 411 is fixedly connected to the bottom end face of the lower pressure plate 409. An abutment plate 412 is fixedly connected to the end of the elastic telescopic rod 411 away from the lower pressure plate 409. A transverse groove is provided at the bottom of the abutment plate 412. Several sets of transverse grooves are provided, and the sets of transverse grooves are arranged at equal intervals. The transverse grooves increase the friction between the workpiece and the abutment plate 412. The end of the elastic element 410 away from the lower pressure plate 409 is fixedly connected to the bottom end face of the housing 3. The end of the connecting rope 408 away from the lower pressure plate 409 is fixedly connected to the side wall of the vertical rod 404. A roller 6 is rotatably connected to the bottom end of the housing 3. The roller 6 is movably connected to the connecting rope 408. The roller 6 changes the direction of the connecting rope 408 and guides the connecting rope 408.

[0026] The three-axis moving platform 2 controls the movement of the housing 3 along the X, Y, and Z axes. The electric push rod 401 pulls the mounting block 402 and the hinge rod 403 upward, causing the two sets of vertical rods 404 to move towards each other. The grippers 406 clamp the workpiece in an alternating manner. The elastic pad 407 conforms to the outer surface of the workpiece through elastic deformation, which can flexibly conform to the surface of irregular or slightly deviated workpieces. For cylindrical, irregular, or blank parts, it can better cover the workpiece than the hard grippers 406, improving stability and clamping consistency, and reducing indentations, scratches, and deformation caused by hard contact. When the grippers 406 clamp the workpiece, the connecting rope 408 is released, and the elastic element 410 pushes the lower pressure plate 409 downward. Then, the abutment plate 412 contacts the outer wall of the workpiece and presses the workpiece downward. The workpiece will not float, jump, or slide due to inertia or vibration during the clamping process, which enhances the contact stability between the workpiece and the fixture and ensures that it does not move out of position.

[0027] In addition, an elastic telescopic rod 7 is fixedly connected to the bottom end face of the lower pressure plate 409. A suction cup 8 is fixedly connected to the end of the elastic telescopic rod 7 away from the lower pressure plate 409. The suction cup 8 adsorbs the top of the rod. When the workpiece is light or the clamping force is small, it prevents the workpiece from shaking during the clamping process and enhances the adhesion of the workpiece clamping assembly 4. When the jaw 406 releases the workpiece, the workpiece separates from the suction cup 8 due to gravity.

[0028] In this utility model, during use, the electric push rod 401 pulls the mounting block 402 and the hinge rod 403 upward, causing the two sets of vertical rods 404 to move towards each other. The grippers 406 clamp the workpiece in an alternating manner. The elastic pad 407 fits the outer surface of the workpiece through elastic deformation, and can flexibly fit the irregular or slightly deviated workpiece surface. When the grippers 406 clamp the workpiece, the connecting rope 408 is released, the elastic element 410 pushes the lower pressure plate 409 downward, and then the abutment plate 412 contacts the outer wall of the workpiece, pressing the workpiece downward. The workpiece will not float, jump or slide due to inertia or vibration during the clamping process.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A mechanical hand for machine tool feeding, comprising a frame body (1), the top end face of the frame body (1) is fixedly connected with a three-axis moving platform (2), characterized in that: The output end of the three-axis moving platform (2) is fixedly connected to a housing (3), and a clamping assembly (4) is provided inside the housing (3). The clamping assembly (4) includes: An electric push rod (401) is provided with a mounting block (402) at its output end, and a hinge rod (403) is hinged to the bottom of the mounting block (402). A vertical rod (404) is fixedly connected to an installation plate (405) on its end face. A clamp (406) is fixedly connected to the side of the installation plate (405) away from the vertical rod (404). An elastic pad (407) is fixedly connected to the bottom end face of the installation plate (405). A connecting rope (408) is provided, with a lower pressure plate (409) fixedly connected to the end face of the connecting rope (408). An elastic element (410) is fixedly connected to the top end face of the lower pressure plate (409), and an elastic telescopic rod (411) is fixedly connected to the bottom end face of the lower pressure plate (409). An abutment plate (412) is fixedly connected to the end of the elastic telescopic rod (411) away from the lower pressure plate (409).

2. The mechanical hand for feeding a machine tool according to claim 1, characterized in that: The electric push rod (401) is fixed to the inner wall of the housing (3), and the end of the hinge rod (403) away from the mounting block (402) is hinged to the vertical rod (404).

3. The mechanical hand for feeding a machine tool according to claim 1, characterized in that: A horizontal bar (5) is fixedly connected to the inner wall of the housing (3), and the horizontal bar (5) is sleeved with the vertical bar (404).

4. The mechanical hand for feeding a machine tool according to claim 1, characterized in that: The elastic pad (407) is fixedly connected to the gripper (406), and there are two sets of the elastic pad (407) and gripper (406), with the two sets of gripper (406) arranged alternately.

5. A robotic arm for loading machine tools according to claim 1, characterized in that: The end of the elastic element (410) away from the lower pressure plate (409) is fixedly connected to the bottom end face of the housing (3), and the end of the connecting rope (408) away from the lower pressure plate (409) is fixedly connected to the side wall of the vertical rod (404). A roller (6) is rotatably connected to the bottom end of the housing (3), and the roller (6) is movably connected to the connecting rope (408).

6. The mechanical hand for feeding a machine tool according to claim 1, characterized in that: The bottom of the abutment plate (412) is provided with a transverse groove, and the transverse groove is provided in several groups, with the several groups of transverse grooves being arranged at equal intervals.

7. The mechanical hand for feeding a machine tool according to claim 1, characterized in that: The bottom end face of the lower pressure plate (409) is fixedly connected to an elastic telescopic rod 2 (7), and the end of the elastic telescopic rod 2 (7) away from the lower pressure plate (409) is fixedly connected to a suction cup (8).

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